CN102847572A

CN102847572A - Microcentrifuge tube structure

Info

Publication number: CN102847572A
Application number: CN2012103623289A
Authority: CN
Inventors: 许东良
Original assignee: Wuxi Nest Biotechnology Co Ltd
Current assignee: Wuxi Nest Biotechnology Co Ltd
Priority date: 2012-09-26
Filing date: 2012-09-26
Publication date: 2013-01-02

Abstract

The invention provides a microcentrifuge tube structure. A sample in a microcentrifuge tube is heated, a cap and a tube opening can still be sealed, and loss and pollution of the sample are avoided. The microcentrifuge tube structure comprises the cap and a tube body, wherein the cap is covered on an inner wall of the tube opening of the tube body; a ring face of an outer edge of the cap is in interference fit with an inner wall of the tube opening; and the microcentrifuge tube structure is characterized in that an annular protruding face is arranged on the inner wall of the tube opening; an inner wall of the annular protruding face is closely pressed on the ring face of the outer edge of the cap; an outer edge location protrusion is arranged on the ring face of the outer edge of the tube opening; a lock catch is arranged on a position of the cap corresponding to the outer edge location protrusion; and the lock catch in a locking state is buckled on a lower end face of the outer edge location protrusion.

Description

The microcentrifugation tubular construction

Technical field

The present invention relates to the technical field of cell culture apparatus, be specially the microcentrifugation tubular construction.

Background technology

Microcentrifugal tube is a kind of small-sized centrifuge tube, supports the use with micro centrifuge, and the separation that is used for trace reagent is centrifugal, and in bioscience, particularly biochemistry and molecular biology research field have very widely and use.

Existing microcentrifugation tubular construction, lid and the mouth of pipe adopt the way of interference fit, sample in guaranteeing to manage can not overflow, but sometimes also need the sample in the microcentrifugal tube is heated, under the double action that liquid evaporation in temperature distortion and pipe expands like this, lid can automatically spring open, and causes loss and the pollution of sample.

Summary of the invention

For the problems referred to above, the invention provides the microcentrifugation tubular construction, itself so that microcentrifugal tube in sample heat after, lid and the mouth of pipe still seal, and can not cause loss and the pollution of sample.

The microcentrifugation tubular construction, its technical scheme is such: it comprises lid, body, described lid mounts cover in the inwall of the mouth of pipe of described body, the outer rim anchor ring of described lid and the inwall interference fit of the described mouth of pipe are fitted, it is characterized in that: the inwall of the described mouth of pipe is provided with the ring-type projecting surface, the inwall of described ring-type projecting surface presses the outer rim anchor ring of described lid, the outer rim anchor ring of the described mouth of pipe is provided with the outer rim location and protrudes, described lid is positioned at the correspondence position that protrudes described outer rim location and is provided with snap close, the lower surface that protrude described outer rim location of linking closely of the snap close under the locking state.

After using structure of the present invention, the outer edge surface of the mouth of pipe of lid and pipe presses the outer rim anchor ring of lid by the inwall of the ring-type projecting surface of snap close locking and internal wall of pipe orifice, after the sample in the microcentrifugal tube heats, the inwall of the ring-type projecting surface of internal wall of pipe orifice still presses the outer rim anchor ring of lid during temperature distortion, the pressure that the liquid evaporation expansion produces can increase the coupling mechanism force of snap close on the contrary, lid and the mouth of pipe still seal, and can not cause loss and the pollution of sample.

Description of drawings

Fig. 1 is front view structural representation of the present invention;

Fig. 2 is the local structure for amplifying schematic diagram in the A place of Fig. 1.

The specific embodiment

See Fig. 1, Fig. 2, it comprises lid 1, body 2, lid 1 mounts cover the inwall 3 in the mouth of pipe of body 2, inwall 3 interference fit of the outer rim anchor ring 4 of lid 1 and the mouth of pipe are fitted, the inwall 3 of the mouth of pipe is provided with ring-type projecting surface 5, and the inwall of ring-type projecting surface 5 presses the outer rim anchor ring 4 of lid 1, and the outer rim anchor ring of the mouth of pipe is provided with the outer rim location and protrudes 6, lid 1 is positioned at outer rim location and protrudes 6 correspondence position and be provided with snap close 7, and 6 lower surface is protruded in the outer rim location of linking closely of the snap close 7 under the locking state.

Claims

1. microcentrifugation tubular construction, it comprises lid, body, described lid mounts cover in the inwall of the mouth of pipe of described body, the outer rim anchor ring of described lid and the inwall interference fit of the described mouth of pipe are fitted, it is characterized in that: the inwall of the described mouth of pipe is provided with the ring-type projecting surface, the inwall of described ring-type projecting surface presses the outer rim anchor ring of described lid, the outer rim anchor ring of the described mouth of pipe is provided with the outer rim location and protrudes, described lid is positioned at the correspondence position that protrudes described outer rim location and is provided with snap close, the lower surface that protrude described outer rim location of linking closely of the snap close under the locking state.