CN105091726A - Digital measuring tape - Google Patents
Digital measuring tape Download PDFInfo
- Publication number
- CN105091726A CN105091726A CN201510269287.2A CN201510269287A CN105091726A CN 105091726 A CN105091726 A CN 105091726A CN 201510269287 A CN201510269287 A CN 201510269287A CN 105091726 A CN105091726 A CN 105091726A
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- China
- Prior art keywords
- housing
- rotor wheel
- tape
- lower right
- right corner
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a digital measuring tape. The digital measuring tape comprises a shell, a measuring tape drum, a microprocessor, an induction measurement mechanism, a tape, a probe, a display screen, a sounding apparatus and a control button, wherein the tape stretches out from the lower right corner of the shell, and is connected with the lower probe; the induction measurement mechanism is arranged between the measuring tape drum and the outlet at the lower right corner of the shell, and comprises a rotating wheel, a magnetic pillar, switching mode Hall elements and a rotating wheel pedestal; the tape is supported on the circumferential outer wall of the rotating wheel; the magnetic pillar is inserted in one of axial holes which are uniformly distributed in the rotating wheel along the circumferential direction; the two switching mode Hall elements are arranged on the side wall which is opposite to the magnetic pillar on the rotating wheel pedestal; the center of each switching mode Hall element and the center of the magnetic pillar are arranged on the same arc line which takes the central axis of the rotating wheel as the center; and the microprocessor is connected with the switching mode Hall elements, the display screen, the sounding apparatus and the control button respectively. The digital measuring tape is convenient to measure accurately and record, and is safe and reliable to use, and is high in detection efficiency.
Description
Technical field
The present invention relates to measurement mechanism, be specifically related to a kind of digital tape measure.
Background technology
Current tape measure great majority are steel ruler or cloth measure, and need artificial reading when measuring length, for general field of employment, owing to not needing accurate numerical value, Measuring Time is also unaffected, and existing tape measure can satisfy the demands substantially.But, but requiring high occasion in measuring accuracy, this tape measure is convenient not, accurate, the inconvenience of measured value record.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of measurement convenient, accurate, be convenient to record, safe and reliable digital tape measure.
The present invention is achieved through the following technical solutions technical goal.
Numeral tape measure, its improvements are: comprise housing, tape measure cylinder, microprocessor, measurement of inductance mechanism, band tape, probe, display screen, sound-producing device and control knob; Described display screen, sound-producing device and control knob are arranged on housing exterior walls; Described tape measure cylinder is arranged in the middle part of housing cavity, can coiling chi cylinder center axis thereof; Described band tape is wound on tape measure cylinder; The described housing lower right corner be provided with communicate with its inner chamber, outlet down, one end that described band tape stretches out from coiling chi cylinder is stretched out from this hole, is connected with the probe of below; Described measurement of inductance organization establishes, between tape measure cylinder and the housing lower right corner export, comprises rotor wheel, magnetic post, switching Hall components and rotor wheel pedestal; Described rotor wheel pedestal is fixedly connected in housing cavity lower base wall; Described rotor wheel is hinged by bearing pin and is connected to rotor wheel pedestal, and can rotate driving wheel center axis thereof, and described band tape is bearing in rotor wheel outer circumferential walls; Described magnetic post is plugged in the uniform axial hole of rotor wheel circumferencial direction; Two described switching Hall components are arranged on sidewall relative with magnetic post on rotor wheel pedestal; Described switching Hall components center and magnetic post are centrally located on the same circular arc line centered by rotor wheel central axis, and the angle α between two described switching Hall components is 1.3 times of adjacent two magnetic post angle β; Described microprocessor is connected with switching Hall components, display screen, sound-producing device and control knob respectively by wire.
In said structure, also comprise band tape elastic compaction mechanism; Described band tape elastic compaction mechanism comprises contact roller bearing, spring, fork, contact roller; Described contact roller bearing is fixedly connected on the roof of housing cavity top; Described fork horizontal, its one end is hinged and connected to contact roller bearing bottom; Described contact roller is arranged on the top of rotor wheel supporting band tape position, is hinged the bottom of fork; Described spring is arranged between fork and housing cavity top roof, the contact roller back side, contact roller is pressed to rotor wheel, thus is pressed against on rotor wheel by band tape.
In said structure, also comprise band tape locating device; Described band tape locating device is arranged on exit, the housing lower right corner, comprises the depression bar of horizontal, radial bearing pin and Compress Spring; The described housing lower right corner is provided with the boss protruded to the right; Described depression bar run through boss exports the horizontal direction communicated with the housing lower right corner endoporus, stretch in the outlet opening of the housing lower right corner, its end is relative with band tape; One end that described depression bar stretches in the outlet opening of the housing lower right corner is provided with the shaft shoulder, and described spring housing is contained on depression bar, between the described depression bar shaft shoulder and described housing lower right corner outlet opening hole wall; Described boss is provided with level open slot to the right; Described radial bearing pin is arranged on depression bar side, coordinates form band tape locating device with the open slot on boss.
In said structure, described control knob comprises reset button, length arranges button and value storage button.
In said structure, the outer circumferential walls of described rotor wheel is provided with wear-resisting, skid resistant course.
The present invention compared with prior art, has following good effect:
1. by Hall element and microprocessor, the amount of spin of rotor wheel is converted to length value, and is shown by display screen, make measurement accurate and visual, be convenient to record; Hall element non-contact-point, no-spark, safe and reliable.
2. when having surveyed a length, will not regain by band tape, by reset button, counting resets, and can continue to measure; Arrange button by length and pre-set length, then stretching chi bar, when arrival arranges length, sound-producing device sends prompt tone; Can store measurement values by value storage button, decrease labour intensity and human factor to the impact of measurement result.
3. band tape elastic compaction mechanism is set, increases the damping of band tape and rotor wheel outer circumferential walls, effectively prevent from skidding in band tape drawing process, improve accuracy, the reliability measured further.
4. band tape locating device is set, at any time band tape can be located, further improve the accuracy of measurement, reliability.
5. rotor wheel outer circumferential walls is after anti-skidding, Wear-resistant Treatment, provides enough dampings, effectively prevents from skidding in band tape drawing process, further improve the accuracy of measurement, reliability, also makes rotor wheel wear-resisting simultaneously, increases the service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is outside drawing of the present invention.
Fig. 3 is I enlarged schematic partial view in Fig. 1.
Fig. 4 is II enlarged schematic partial view in Fig. 1.
Embodiment
Below with reference to the accompanying drawings and the invention will be further described in conjunction with the embodiments.
Digital tape measure shown in accompanying drawing, comprises housing 1, tape measure cylinder 2, microprocessor 3, measurement of inductance mechanism 4, band tape 6, probe 7, display screen 8, sound-producing device 9, band tape elastic compaction mechanism 8, band tape locating device 5 and control knob 10; Display screen 8, sound-producing device 9 and control knob 10 are arranged on housing 1 outer wall; Tape measure cylinder 2 is arranged in the middle part of housing 1 inner chamber, can coiling chi cylinder 2 center axis thereof; Band tape 6 is wound on tape measure cylinder 2; Housing 1 lower right corner be provided with communicate with its inner chamber, outlet down, one end that band tape 6 stretches out from coiling chi cylinder 2 is stretched out from this hole, is connected with the probe 7 of below; Measurement of inductance mechanism 4 is arranged between tape measure cylinder 2 and housing 1 lower right corner export, and comprises rotor wheel 4.5, magnetic post 4.6, switching Hall components 4.7 and rotor wheel pedestal 4.8; Rotor wheel pedestal 4.8 is fixedly connected in housing 1 inner chamber lower base wall; Rotor wheel 4.5 is hinged by bearing pin and is connected to rotor wheel pedestal 4.8, and can rotate driving wheel 4.5 center axis thereof, and band tape 6 is bearing in rotor wheel 4.5 outer circumferential walls; Magnetic post 4.6 is plugged in the uniform axial hole of rotor wheel 4.5 circumferencial direction; Two switching Hall components 4.7 are arranged on sidewall relative with magnetic post 4.6 on rotor wheel pedestal 4.8; Switching Hall components 4.7 center and magnetic post 4.6 are centrally located on the same circular arc line centered by rotor wheel 4.5 central axis, and the angle α between two switching Hall components 4.7 is 1.3 times of adjacent two magnetic post 4.6 angle β; Microprocessor 3 is connected with switching Hall components 4.7, display screen 8, sound-producing device 9 and control knob 10 respectively by wire.
Band tape elastic compaction mechanism 8 comprises contact roller bearing 8.1, spring 8.2, fork 8.3, contact roller 8.4; Contact roller bearing 8.1 is fixedly connected on the roof of housing 1 inner chamber top; Fork 8.3 horizontal, its one end is hinged and connected to contact roller bearing 8.1 bottom; Contact roller 8.4 is arranged on the top of rotor wheel 4.5 supporting band tape 6 position, is hinged the bottom of fork 8.3; Spring 8.2 is arranged between fork 8.3 and housing 1 inner chamber top roof, contact roller 8.4 back side, contact roller 8.4 is pressed to rotor wheel 4.5, thus is pressed against on rotor wheel 4.5 by band tape 6.
Band tape locating device 5 is arranged on exit, housing 1 lower right corner, comprises the depression bar 5.1 of horizontal, radial bearing pin 5.2 and Compress Spring 5.4; Housing 1 lower right corner is provided with the boss 5.3 protruded to the right; Depression bar 5.1 run through boss 5.3 exports the horizontal direction communicated with housing 1 lower right corner endoporus, stretch in the outlet opening of housing 1 lower right corner, its end is relative with band tape 6; One end that depression bar 5.1 stretches in the outlet opening of housing 1 lower right corner is provided with the shaft shoulder, and spring 5.4 is sleeved on depression bar 5.1, between depression bar 5.1 shaft shoulder and housing 1 lower right corner outlet opening hole wall; Boss 5.3 is provided with level open slot 5.5 to the right; Radial bearing pin 5.2 is arranged on depression bar 5.1 side, coordinates form band tape locating device 5 with the open slot 5.5 on boss 5.3.
In the present embodiment, control knob 10 comprises reset button 10.1, length arranges button 10.2 and value storage button 10.3.
In the present embodiment, the outer circumferential walls of rotor wheel 4.5 is provided with wear-resisting, skid resistant course.
The present invention in use, when band tape 6 stretches out or bounces back, rotor wheel 4.5 carrys out back rotation due to friction force effect between band tape 6, magnetic post 4.6 often through switching Hall components 4.7 once by generation pulse, by comparing the pulse waveform of two switching Hall components 4.7, can measure the direction that rotor wheel 4.5 rotates, the umber of pulse of utilization record and the diameter of rotor wheel 4.5 can calculate the length that tape measure stretches out.
During measurement, rotate tape measure cylinder 2, probe 7 pulls band tape 6 to stretch out under gravity, band tape 6 drives rotor wheel 4.5 to rotate owing to rubbing, switching Hall components 4.7 is measured the amount of spin of rotor wheel 4.5 and is connected with microprocessor 3 by wire, amount of spin is converted to length by microprocessor 3, and show constantly on display screen 8, measure accurately directly perceived, when arriving assigned address, sound-producing device 9 gives the alarm, and presses locating device 5, band tape 6 is maintained static, is convenient to measure, count.Press data store button 10.3 and store measured value, successful operation can send ok voice message.When having surveyed a length, will not regain by band tape 6, at this moment, by reset button 10.1, counting resets, and can continue to measure.
Claims (5)
1. a digital tape measure, is characterized in that: comprise housing (1), tape measure cylinder (2), microprocessor (3), measurement of inductance mechanism (4), band tape (6), probe (7), display screen (8), sound-producing device (9) and control knob (10); Described display screen (8), sound-producing device (9) and control knob (10) are arranged on housing (1) outer wall; Described tape measure cylinder (2) is arranged in the middle part of housing (1) inner chamber, can coiling chi cylinder (2) center axis thereof; Described band tape (6) is wound on tape measure cylinder (2); Described housing (1) lower right corner be provided with communicate with its inner chamber, outlet down, one end that described band tape (6) stretches out from coiling chi cylinder (2) is stretched out from this hole, is connected with the probe (7) of below; Described measurement of inductance mechanism (4) is arranged between tape measure cylinder (2) and housing (1) lower right corner export, and comprises rotor wheel (4.5), magnetic post (4.6), switching Hall components (4.7) and rotor wheel pedestal (4.8); Described rotor wheel pedestal (4.8) is fixedly connected in housing (1) inner chamber lower base wall; Described rotor wheel (4.5) is hinged by bearing pin and is connected to rotor wheel pedestal (4.8), and can rotate driving wheel (4.5) center axis thereof, and described band tape (6) is bearing in rotor wheel (4.5) outer circumferential walls; Described magnetic post (4.6) is plugged in the uniform axial hole of rotor wheel (4.5) circumferencial direction; Two described switching Hall components (4.7) are arranged on the upper sidewall relative with magnetic post (4.6) of rotor wheel pedestal (4.8); Described switching Hall components (4.7) center and magnetic post (4.6) are centrally located on the same circular arc line centered by rotor wheel (4.5) central axis, and the angle α between two described switching Hall components (4.7) is 1.3 times of adjacent two magnetic post (4.6) angle β; Described microprocessor (3) is connected with switching Hall components (4.7), display screen (8), sound-producing device (9) and control knob (10) respectively by wire.
2. digital tape measure according to claim 1, is characterized in that: also comprise band tape elastic compaction mechanism (8); Described band tape elastic compaction mechanism (8) comprises contact roller bearing (8.1), spring (8.2), fork (8.3), contact roller (8.4); Described contact roller bearing (8.1) is fixedly connected on the roof of housing (1) inner chamber top; Described fork (8.3) horizontal, its one end is hinged and connected to contact roller bearing (8.1) bottom; Described contact roller (8.4) is arranged on the top of rotor wheel (4.5) supporting band tape (6) position, is hinged the bottom of fork (8.3); Described spring (8.2) is arranged between fork (8.3) and housing (1) inner chamber top roof, contact roller (8.4) back side, contact roller (8.4) is pressed to rotor wheel (4.5), thus is pressed against on rotor wheel (4.5) by band tape (6).
3. digital tape measure according to claim 1 and 2, is characterized in that: also comprise band tape locating device (5); Described band tape locating device (5) is arranged on housing (1) exit, the lower right corner, comprises the depression bar (5.1) of horizontal, radial bearing pin (5.2) and Compress Spring (5.4); Described housing (1) lower right corner is provided with the boss (5.3) protruded to the right; Described depression bar (5.1) run through boss (5.3) upper export the horizontal direction communicated with housing (1) lower right corner endoporus, stretch in the outlet opening of housing (1) lower right corner, its end is relative with band tape (6); One end that described depression bar (5.1) stretches in the outlet opening of housing (1) lower right corner is provided with the shaft shoulder, and described spring (5.4) is sleeved on depression bar (5.1), between described depression bar (5.1) shaft shoulder and described housing (1) lower right corner outlet opening hole wall; Described boss (5.3) is provided with level open slot to the right (5.5); Described radial bearing pin (5.2) is arranged on depression bar (5.1) side, coordinates form band tape locating device (5) with the open slot (5.5) on boss (5.3).
4. digital tape measure according to claim 3, is characterized in that: described control knob (10) comprises reset button (10.1), length arranges button (10.2) and value storage button (10.3).
5. digital tape measure according to claim 4, is characterized in that: the outer circumferential walls of described rotor wheel (4.5) is provided with wear-resisting, skid resistant course.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269287.2A CN105091726A (en) | 2015-05-25 | 2015-05-25 | Digital measuring tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269287.2A CN105091726A (en) | 2015-05-25 | 2015-05-25 | Digital measuring tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105091726A true CN105091726A (en) | 2015-11-25 |
Family
ID=54572691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510269287.2A Pending CN105091726A (en) | 2015-05-25 | 2015-05-25 | Digital measuring tape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105091726A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115409A (en) * | 2015-09-06 | 2015-12-02 | 江苏大学 | Portable oil tank displacement automatic measuring device |
| CN106949821A (en) * | 2017-04-17 | 2017-07-14 | 山东东山王楼煤矿有限公司 | A kind of mining survey tool with limit function |
| CN107677171A (en) * | 2017-11-16 | 2018-02-09 | 东莞市衡准电子有限公司 | A kind of multifunction digital chi |
| CN109141157A (en) * | 2017-06-16 | 2019-01-04 | 徐涌涛 | A kind of numerical display type tape measure |
| CN110006394A (en) * | 2019-04-22 | 2019-07-12 | 中国十九冶集团有限公司 | Altitude data measurement method in basement |
| CN114485310A (en) * | 2022-01-17 | 2022-05-13 | 深圳市宁博尔科技有限公司 | Tape measure damper capable of adjusting winding damping force |
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| US4181960A (en) * | 1976-11-29 | 1980-01-01 | Sharp Kabushiki Kaisha | Tape reel and detector assembly for an electronic combined digital scale and calculator |
| CN1269009A (en) * | 1997-04-28 | 2000-10-04 | 麦耶迈德公司 | Tape measure with manual entry electronic measurement recording feature |
| CN101093157A (en) * | 2007-04-27 | 2007-12-26 | 胡维朗 | Tape measure |
| CN101191715A (en) * | 2006-11-20 | 2008-06-04 | 朱四林 | Digital display thread band tape |
| CN101413779A (en) * | 2008-11-24 | 2009-04-22 | 中国石油集团长城钻探工程有限公司 | Linear displacement detection method |
| US8739426B1 (en) * | 2010-12-29 | 2014-06-03 | Jeffory D. Freed | Measuring device |
| CN103837206A (en) * | 2012-11-26 | 2014-06-04 | 江苏远望仪器有限公司 | Digital display type oil-water interface detector |
| CN204881503U (en) * | 2015-05-25 | 2015-12-16 | 江苏远望仪器有限公司 | Digit tape measure |
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2015
- 2015-05-25 CN CN201510269287.2A patent/CN105091726A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4181960A (en) * | 1976-11-29 | 1980-01-01 | Sharp Kabushiki Kaisha | Tape reel and detector assembly for an electronic combined digital scale and calculator |
| CN1269009A (en) * | 1997-04-28 | 2000-10-04 | 麦耶迈德公司 | Tape measure with manual entry electronic measurement recording feature |
| CN101191715A (en) * | 2006-11-20 | 2008-06-04 | 朱四林 | Digital display thread band tape |
| CN101093157A (en) * | 2007-04-27 | 2007-12-26 | 胡维朗 | Tape measure |
| CN101413779A (en) * | 2008-11-24 | 2009-04-22 | 中国石油集团长城钻探工程有限公司 | Linear displacement detection method |
| US8739426B1 (en) * | 2010-12-29 | 2014-06-03 | Jeffory D. Freed | Measuring device |
| CN103837206A (en) * | 2012-11-26 | 2014-06-04 | 江苏远望仪器有限公司 | Digital display type oil-water interface detector |
| CN204881503U (en) * | 2015-05-25 | 2015-12-16 | 江苏远望仪器有限公司 | Digit tape measure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115409A (en) * | 2015-09-06 | 2015-12-02 | 江苏大学 | Portable oil tank displacement automatic measuring device |
| CN106949821A (en) * | 2017-04-17 | 2017-07-14 | 山东东山王楼煤矿有限公司 | A kind of mining survey tool with limit function |
| CN109141157A (en) * | 2017-06-16 | 2019-01-04 | 徐涌涛 | A kind of numerical display type tape measure |
| CN107677171A (en) * | 2017-11-16 | 2018-02-09 | 东莞市衡准电子有限公司 | A kind of multifunction digital chi |
| CN110006394A (en) * | 2019-04-22 | 2019-07-12 | 中国十九冶集团有限公司 | Altitude data measurement method in basement |
| CN114485310A (en) * | 2022-01-17 | 2022-05-13 | 深圳市宁博尔科技有限公司 | Tape measure damper capable of adjusting winding damping force |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 225500 Jiangsu city of Taizhou province Qintong town Jiangyan District West Industrial Zone Applicant after: Jiangsu Yuan Yuan Instrument Group Co., Ltd. Address before: Qintong town Jiangyan District Jiangsu road 225500 Qin Jiang City Taizhou province No. 81 Applicant before: Jiangsu Yuanwang Instrument Co., Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151125 |