CN210410815U

CN210410815U - Clamping device for molecular biology experiments

Info

Publication number: CN210410815U
Application number: CN201921090835.5U
Authority: CN
Inventors: 熊伟
Original assignee: Dali University
Current assignee: Dali University
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-04-28
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a clamping device for molecular biology experiments, which comprises a connecting part and two clamping bodies for clamping; the upper end of the clamping body is connected with the lower end of the connecting part; the lower part of the clamping body is provided with a cavity; a through hole is formed in the lower surface of the clamping body; the through hole is communicated with the cavity; a tip clamping assembly is movably received in the cavity; a spring is arranged at the inner lower part of the cavity; the upper end of the tip clamping assembly is connected with a telescopic assembly; the lower end of the tip clamping component sequentially penetrates through the spring and the through hole to extend out of the clamping body; the utility model discloses the technical scheme who takes has solved and has changed in the current experimentation and has used not equidimension shape's the clamp to get the problem that has inconvenience when getting the instrument.

Description

Clamping device for molecular biology experiments

Technical Field

The utility model relates to a molecular biology experimental facilities technical field, concretely relates to device is got with pressing from both sides to molecular biology experiment.

Background

In molecular biology tests, tweezers are often used for clamping test articles such as a centrifuge tube, an adhesive tape, gel, an NC (numerical control) membrane or a PVDF (polyvinylidene fluoride) membrane for pretreatment, and clamping and picking devices with different sizes and shapes are used according to different material requirements; at present experimentation, use tweezers etc. to get instrument usually, when nevertheless facing different experimental materials, often need to change and get the problem of getting the instrument and leading to wasting more time and influence the experiment progress, in addition, some present tip nickel that are used for choosing, scratch skin easily when taking and lead to awkward problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device is got with pressing from both sides to molecular biology experiment solves the problem that has inconvenience when the clamp of the not equidimension shape of conversion use is got the instrument in the current experimentation.

In order to solve the technical problem, the utility model adopts the following technical scheme: a clamping device for molecular biology experiments comprises a connecting part and two clamping bodies for clamping; the upper end of the clamping body is connected with the lower end of the connecting part; the lower part of the clamping body is provided with a cavity; a through hole is formed in the lower surface of the clamping body; the through hole is communicated with the cavity; a tip clamping assembly is movably received in the cavity; a spring is arranged at the inner lower part of the cavity; the upper end of the tip clamping assembly is connected with a telescopic assembly; the lower end of the tip clamping component sequentially penetrates through the spring and the through hole to extend out of the clamping body;

further, the tip clamping assembly comprises a tip part and a connecting rod; the upper end of the connecting rod is connected with the telescopic assembly; the lower end of the connecting rod is connected with the tip part; a bulge is arranged at the edge of the upper end of the pointed head part; the bulge is movably connected with the upper end of the spring;

furthermore, the telescopic assembly comprises a cross rod, a button and an elastic piece; one end of the cross rod penetrates through the clamping body and then is connected with the button; the other end of the cross rod is fixedly connected with an elastic piece; the lower part of the cross rod is connected with the upper end of the tip clamping component; a guide groove is formed in the side wall of the clamping body;

further, the cross bar comprises a first short bar and a second short bar; the outer diameter of the first short rod is smaller than that of the second short rod; the outer diameter of the second short rod is larger than the width of the guide groove; limiting holes are formed in two ends of the guide groove; the diameter of the limiting hole is not smaller than the outer diameter of the second short rod;

further, the first short rod is connected with a button; the second short rod is connected with the elastic piece; the cross rod is connected with the tip clamping assembly;

furthermore, the clamping body comprises a nickel handle part and a nickel clamp part; the upper end of the nickel handle part is fixedly connected with the connecting part; the lower end of the nickel handle part is in threaded connection with the nickel clamp part; the cavity is arranged in the nickel clamp part; the guide groove is arranged on the side wall of the nickel clamping part;

furthermore, a picking needle is arranged at the upper end of the connecting part; the picking needle is movably provided with a protective cover;

a protection pad is arranged in the protection cover; a first sliding groove is formed in the protection pad; the first is

Compared with the prior art, the beneficial effects of the utility model are one of following at least:

1. the side wall of the clamping body is a plane and can be used as flat-head nickel, the tip clamping assembly is telescopically arranged in the cavity in the clamping body under the control of the telescopic assembly and the elastic action of the spring, the tip clamping assembly can be quickly popped out according to the use requirement, and the tip clamping assembly can be withdrawn through the elastic force of the telescopic assembly and the spring after the use, so that the flexibility of changing the clamping device is improved;

2. the tip clamping assembly is stored in the cavity of the clamping body, so that the tip clamping assembly can be retracted when the tip clamping assembly is not needed, the skin of a human body is prevented from being scratched, and convenience is brought to use.

The utility model discloses a working process does: when the clamping body is used, the nickel clamping parts are folded and separated to be clamped, taken and placed by holding the nickel handle parts of the clamping body, and the opposite side walls of the two nickel handle parts are planes and can be used as flat-end nickel; when the tip clamping assembly needs to be used, the button is pressed to enable the second short rod of the cross rod to retract into the cavity, so that the second short rod with the smaller diameter falls into the limiting hole and slides downwards through the guide groove, the connecting rod of the tip clamping assembly connected with the cross rod is driven to move downwards, and finally the tip part of the tip clamping assembly extends out of the through hole; at the moment, the first short rod falls into a limiting hole at the lower end of the guide groove, the button is loosened, the cross rod is reset by virtue of the elastic piece, so that the second short rod is clamped into the limiting hole, the position of the cross rod is fixed, the tip part can be normally used for clamping materials, and the end part of the tip part is relatively sharp and can be used as tip tweezers; after the use, the tip clamping assembly is retracted into the cavity by pressing the button, pushing the button upwards and loosening the button.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is the schematic view of the split structure of the present invention.

Fig. 3 is a bottom view of the nickel clip portion.

Fig. 4 is an enlarged schematic view of a part of the structure of the present invention.

Fig. 5 is a schematic view of a protective cover structure.

In the drawings: 1. a connecting portion; 2. a clamping body; 21. a nickel shank; 22. a nickel clip portion; 3. a cavity; 4. a tip gripping assembly; 41. a tip portion; 42. a connecting rod; 43. a protrusion; 5. a spring; 6. a telescoping assembly; 61. a cross bar; 611. a first short bar; 612. a second short bar; 62. a button; 63. an elastic member; 7. a through hole; 8. a guide groove; 9. a limiting hole; 10. picking a needle; 11. a protective cover; 12. a protection pad; 13. a first chute; 14. a second runner.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1: as shown in fig. 1 and 4, a clamping device for molecular biology experiments comprises a connecting part 1 and two clamping bodies 2 for clamping; the upper end of the clamping body 2 is connected with the lower end of the connecting part 1; the lower part of the clamping body 2 is provided with a cavity 3; a through hole 7 is formed in the lower surface of the clamping body 2; the through hole 7 is communicated with the cavity 3; a tip clamping component 4 is movably received in the cavity 3; a spring 5 is also arranged at the lower part in the cavity 3; the upper end of the tip clamping component 4 is connected with a telescopic component 6; the lower end of the tip clamping component 4 sequentially penetrates through the spring 5 and the through hole 7 to extend out of the clamping body 2; the side wall of the clamping body 2 is a plane and can be used as flat-head nickel, the tip clamping component 4 is telescopically arranged in the cavity 3 in the clamping body 2 under the control of the telescopic component 6 and the elastic action of the spring 5, the tip clamping component 4 can be quickly popped out according to the use requirement, and the tip clamping component 4 can be withdrawn through the elastic force of the telescopic component 6 and the spring 5 after the use is finished, so that the flexibility of changing the clamping device is improved; receive and release tip centre gripping subassembly 4 in the cavity 3 of clamping body 2, can pack up tip centre gripping subassembly 4 when need not using tip centre gripping subassembly 4, avoid the human skin of fish tail, offer convenience for the use.

As shown in fig. 2 and 4, the tip gripping assembly 4 includes a tip portion 41 and a link 42; the upper end of the connecting rod 42 is connected with the telescopic assembly 6; the lower end of the connecting rod 42 is connected with the pointed part 41; a bulge 43 is arranged at the edge of the upper end of the pointed head part 41; the bulge 43 is movably connected with the upper end of the spring 5; the tip part 41 has a relatively sharp end, and can be used as tip forceps after ejecting the tip clamping assembly 4, and the connecting rod 42 is used for connecting the telescopic assembly 6 to adjust the ejection and retraction of the tip part 41; when the prong part 41 is ejected, the protrusion 43 can press the spring 5, so that the spring 5 is compressed, and when the prong part 41 is retracted, the protrusion 43 is pushed upward by the elastic restoring force of the spring 5, thereby facilitating the rapid retraction of the prong part 41. The spring 5 adopts a conventional and reasonable existing spring 5, and the deformation capacity of the spring is enough.

As shown in fig. 4, the telescopic assembly 6 comprises a cross bar 61, a button 62 and an elastic member 63; one end of the cross rod 61 penetrates through the clamping body 2 and is connected with the button 62; the other end of the cross bar 61 is fixedly connected with an elastic piece 63; a guide groove 8 is formed in the side wall of the clamping body 2; along vertical pushing button 62, horizontal pole 61 just can slide from top to bottom in guide way 8, drives the prong centre gripping subassembly 4 of being connected with horizontal pole 61 and reciprocates in cavity 3 to realize that the prong 41 of prong centre gripping subassembly 4 lower extreme stretches out the holding body 2, perhaps receives in cavity 3.

As shown in fig. 4, the cross bar 61 includes a first short bar 611 and a second short bar 612; the outer diameter of the first short rod 611 is smaller than that of the second short rod 612; the outer diameter of the second short rod 612 is larger than the width of the guide groove 8; two ends of the guide groove 8 are provided with limiting holes 9; the diameter of the limiting hole 9 is not less than the outer diameter of the second short rod 612; the button 62 is pressed into the cavity 3, the second short rod 612 of the cross rod 61 retracts into the cavity 3 by virtue of the elastic piece 63, the first short rod 611 enters the limiting hole 9 and then slides up and down through the guide groove 8, so that the tip clamping component 4 connected with the cross rod 61 is driven to slide up and down, when the first short rod 611 slides into the limiting hole 9, the button 62 is loosened, the second short rod 612 is pushed to the outside of the cavity 3 until the second short rod falls into the limiting hole 9, at the moment, the cross rod 61 can be limited at the height of the limiting hole 9, and the position of the tip clamping component 4 can be fixed.

As shown in fig. 4, the first short bar 611 is connected to the button 62; the second short rod 612 is connected with the elastic member 63; the cross bar 61 is connected with the tip clamping assembly 4; the resilient member 63 may be a conventional resilient plate or spring 5 having a resilient deformation force sufficient to allow the cross bar 61 to be ejected a distance out of the cavity 3, and the resilient member 63 can be used for a sufficient period of time.

As shown in fig. 2, the clamping body 2 comprises a nickel shank 21 and a nickel clamp 22; the upper end of the nickel handle part 21 is fixedly connected with the connecting part 1; the lower end of the nickel handle part 21 is in threaded connection with the nickel clamp part 22; the cavity 3 is arranged in the nickel clamp part 22; the guide groove 8 is arranged on the side wall of the nickel clamp part 22; the nickel handle part 21 of the clamping body 2 is used for hand-holding and applying force, the nickel clamp part 22 is mainly used for clamping, in the embodiment, an external thread is processed on the outer wall of the lower part of the nickel handle part 21, and an installation groove is formed in the upper end of the cavity 3 of the nickel clamp part 22; the internal thread is arranged in the groove, so that the threaded connection between the nickel handle part 21 and the nickel clamping part 22 can be realized, and the maintenance, the replacement and the cleaning after the disassembly and the assembly are convenient.

As shown in fig. 1 and 2, a picking needle 10 is further arranged at the upper end of the connecting part 1; a protective cover 11 is movably arranged on the picking needle 10; the lower end of the picking needle 10 is fixed on the upper surface of the connecting portion 1, the picking ring is arranged at the upper end of the picking needle 10, some tissue structures can be picked, the convenience of replacing the clamping device is improved, the picking needle 10 can be protected through the protective cover 11, and damage and pollution are avoided. The protective cover 11 can be connected with the upper end of the connecting part 1 through a clamping groove.

As shown in fig. 2, a protection pad 12 is disposed in the protection cover 11; the protection pad 12 is provided with a first sliding chute 13; a second sliding chute 14 is arranged at the bottom of the first sliding chute 13; the protection pad 12 arranged in the protection cover 11 can be made of conventional flexible materials, the first sliding groove 13 is wide in width and used for sliding and pushing in the picking ring, and the second sliding groove 14 is arranged at the groove bottom of the first sliding groove 13, is narrow in width and is used for placing the needle handle part of the picking needle 10.

When in use, the nickel clamping parts 22 are folded and separated for clamping, taking and placing by holding the nickel handle parts 21 of the clamping bodies 2, and the opposite side walls of the two nickel handle parts 21 are planes and can be used as flat-end nickel; when the tip holding assembly 4 needs to be used, the button 62 is pressed, so that the second short rod 612 of the cross rod 61 retracts into the cavity 3, the second short rod 612 with the smaller diameter falls into the limiting hole 9 and slides downwards through the guide groove 8, the connecting rod 42 of the tip holding assembly 4 connected with the cross rod 61 is driven to move downwards, and finally the tip part 41 of the tip holding assembly 4 extends out of the through hole 7; at this time, the first short rod 611 falls into the limiting hole 9 at the lower end of the guide groove 8, the button 62 is released, the cross rod 61 is reset by the elastic piece 63, so that the second short rod 612 is clamped into the limiting hole 9, the position of the cross rod 61 is fixed, the pointed head 41 can be normally used for clamping materials, the end part of the pointed head 41 is sharp, and the pointed head can be used as pointed forceps; after use, the tip gripping assembly 4 is retracted into the cavity 3 by pressing the button 62, pushing the button 62 upward, and releasing the button 62.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A clamping device for molecular biology experiments comprises a connecting part (1) and two clamping bodies (2) for clamping; the upper end of the clamping body (2) is connected with the lower end of the connecting part (1); the method is characterized in that: a cavity (3) is arranged at the lower part of the clamping body (2); a through hole (7) is formed in the lower surface of the clamping body (2); the through hole (7) is communicated with the cavity (3); a tip clamping component (4) is movably received in the cavity (3); a spring (5) is also arranged at the inner lower part of the cavity (3); the upper end of the tip clamping component (4) is connected with a telescopic component (6); the lower end of the tip clamping component (4) sequentially penetrates through the spring (5) and the through hole (7) to extend out of the clamping body (2).

2. The clamping device for molecular biology experiments as claimed in claim 1, wherein: the tip clamping assembly (4) comprises a tip part (41) and a connecting rod (42); the upper end of the connecting rod (42) is connected with the telescopic assembly (6); the lower end of the connecting rod (42) is connected with a sharp head part (41); a bulge (43) is arranged at the edge of the upper end of the pointed head part (41); the bulge (43) is movably connected with the upper end of the spring (5).

3. The clamping device for molecular biology experiments as claimed in claim 1, wherein: the telescopic assembly (6) comprises a cross rod (61), a button (62) and an elastic piece (63); one end of the cross rod (61) penetrates through the clamping body (2) and then is connected with the button (62); the other end of the cross rod (61) is fixedly connected with an elastic piece (63); the lower part of the cross rod (61) is connected with the upper end of the tip clamping component (4); the side wall of the clamping body (2) is provided with a guide groove (8).

4. The clamping device for molecular biology experiments as claimed in claim 3, wherein: the cross bar (61) comprises a first short bar (611) and a second short bar (612); the outer diameter of the first short rod (611) is smaller than that of the second short rod (612); the outer diameter of the second short rod (612) is larger than the width of the guide groove (8); two ends of the guide groove (8) are provided with limiting holes (9); the diameter of the limiting hole (9) is not smaller than the outer diameter of the second short rod (612).

5. The clamping device for molecular biology experiments as claimed in claim 4, wherein: the first short rod (611) is connected with a button (62); the second short rod (612) is connected with an elastic piece (63); the cross bar (61) is connected with the tip clamping component (4).

6. The clamping device for molecular biology experiments as claimed in claim 3, wherein: the clamping body (2) comprises a nickel handle part (21) and a nickel clamping part (22); the upper end of the nickel handle part (21) is fixedly connected with the connecting part (1); the lower end of the nickel handle part (21) is in threaded connection with the nickel clamp part (22); the cavity (3) is arranged in the nickel clamp part (22); the guide groove (8) is arranged on the side wall of the nickel clamp part (22).

7. The clamping device for molecular biology experiments as claimed in claim 1, wherein: the upper end of the connecting part (1) is also provided with a picking needle (10); the picking needle (10) is movably provided with a protective cover (11).

8. The clamping device for molecular biology experiments as claimed in claim 7, wherein: a protective pad (12) is arranged in the protective cover (11); a first sliding groove (13) is arranged on the protection pad (12); and a second sliding chute (14) is arranged at the bottom of the first sliding chute (13).