Test sample clamping device

Abstract

The utility model relates to the field of sample clamping, and discloses a test sample clamping device, which comprises a clamp main body and a grip arranged at one end of the clamp main body, a finger pushing assembly is arranged in the clamp main body, the finger pushing assembly is embedded with a linkage gear assembly, the linkage gear assembly is embedded with a displacement assembly, and the displacement assembly is connected with the clamp main body. A mounting assembly is embedded in the displacement assembly and is provided with a chuck; the finger-pushing gear can be pushed by fingers to drive the displacement rods to move towards the left side, meanwhile, the displacement rods on the other side are driven to get close to the right side, the displacement rods on the two sides slide in the embedding grooves and gather towards the middle, and the displacement rods drive the limiting rods on the two sides to move towards the middle through the limiting grooves. According to the novel mounting plate, the pressing buckles can be pressed to slide in the mounting holes to compress the springs so that the pressing buckles can be separated from the insertion grooves, then the chucks can be detached for replacement, the design is simple and rapid, and the chuck replacement time is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the field of sample clamping, in particular to a sample clamping device for testing. Background Art

[0002] Biological, medical and other experiments or tests often need to be carried out on a clean bench. In order to ensure the accuracy of the experimental and test results, experimental samples, reagents or test tubes containing samples and reagents are generally transferred or sampled using a clean clamping device. When sampling or transferring liquid reagents, a pipette can be used; when sampling different reagents, different disposable gun tips are replaced. The operator only needs to hold the pipette to replace the gun tip from the gun tip rack, which is convenient to use. However, when transferring solid samples or transferring test tubes, there is still a lack of special utensils, and usually only tweezers can be used. However, repeated use of tweezers is prone to fatigue and confusion, and improper placement of tweezers is also prone to contamination. In addition, the repeated use of tweezers requires repeated cleaning or disinfection, which increases the burden on experimental and test personnel.

[0003] According to a kind of removal and clamping device provided by patent application number CN202321509618.1; the removal and clamping device of the utility model includes an operating gun and a chuck, the operating gun includes a housing, a connecting tube, a pressing rod, and a first elastic member, and the chuck includes a connecting seat tube, a push fork, a third elastic member, and two groups of elastic clips; when in use, the chuck is installed on the operating gun through the connecting seat tube, and the elastic clip remains in an open state when no external force is applied; the pressing rod is pushed to slide the pressing rod toward the chuck, and the pressing rod pushes the push fork, and the push fork slides against the elastic clip to close the elastic clip, thereby clamping the experimental sample or test tube. It can easily replace the chuck to clamp different samples and prevent cross contamination of samples.

[0004] There are still some shortcomings in this patent application. When replacing the chuck, this patent adopts a rotating threaded locking part, which is troublesome for chucks that are frequently replaced. In addition, the device is equipped with too many elastic parts. The elasticity of the elastic parts will weaken after long-term use, resulting in a decrease in sensitivity during clamping, affecting the clamping efficiency. Therefore, a test sample clamping device is needed to solve this problem. Utility Model Content

[0005] The utility model aims to provide a sample clamping device for testing, aiming to solve the problems raised in the background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A sample clamping device for testing comprises a clamp body and a handle arranged at one end of the clamp body, wherein a finger push assembly is arranged inside the clamp body, the finger push assembly is engaged with a linkage gear assembly, the linkage gear assembly is engaged with a displacement assembly, the displacement assembly is engaged with a mounting assembly, and the mounting assembly is provided with a chuck.

[0008] Preferably, the clamp body is provided with a body through hole, a movable opening is provided on one side of the body through hole, the movable opening is provided with a gear groove, and a finger-push gear is installed on the body through hole.

[0009] Preferably, the finger push assembly includes a finger push tooth plate, the finger push tooth plate is engaged with a finger push gear, the finger push tooth plate is connected to a cross sliding frame, and the cross sliding frame is engaged with a sliding groove of the clamp body.

[0010] Preferably, the cross sliding frame is connected to the pulling tooth plate, the pulling tooth plate is engaged with a primary gear on both sides, the primary gear is fixed on the gear shaft, and the gear shaft is engaged with the fixture body.

[0011] Preferably, the linkage gear assembly includes a secondary gear, the secondary gear engages with the primary gear, the secondary gear is installed in the gear groove, and the displacement assembly includes a displacement back plate, the displacement back plate engages with the displacement rod.

[0012] Preferably, an engaging groove is provided on the bottom surface of the displacement back plate, the engaging groove engages with the displacement rod, a limiting groove is provided on one side of the displacement rod, and a slot is provided on the side surface of the displacement back plate.

[0013] Preferably, the mounting assembly comprises a mounting plate, the mounting plate is provided with a mounting hole, the mounting hole is engaged with a push buckle, a plurality of springs are provided on one side of the push buckle, and the push buckle is engaged with a slot.

[0014] Preferably, the chuck is mounted on one end of a limiting rod, the other end of the limiting rod is engaged with a limiting groove, the limiting rod is connected to an intermediate rod, the intermediate rod is engaged with a moving groove of a connecting block, and the connecting block is connected to a mounting plate.

[0015] Beneficial effect: The new type can push the finger-push gear to rotate by pushing it with fingers, thereby driving the finger-push tooth plate to move horizontally backward, and the finger-push tooth plate drives the secondary gear to rotate clockwise, and the secondary gear drives the displacement rod engaged with it to move to the left, and at the same time, the displacement rod on the other side is driven closer to the right, so that the displacement rods on both sides slide in the engaging grooves and gather in the middle, and the displacement rod uses the limit groove to drive the limit rods on both sides to move toward the middle, thereby driving the chucks to approach each other to realize the clamping operation. The new type of mounting plate can slide the compression spring in the mounting hole by pressing the push buckle to make the push buckle disengage from the slot, thereby realizing the removal of the chuck for replacement. The design is simple and quick, greatly shortens the time for replacing the chuck, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the fixture of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the finger-push assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the linkage gear assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the displacement back plate structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the displacement assembly of the utility model;

[0023] Figure 7 This is a schematic diagram of the installation component structure of the utility model.

[0024] Legend:

[0025] 1. Clamp body; 2. Handle; 3. Finger push assembly; 4. Linkage gear assembly; 5. Displacement assembly; 6. Mounting assembly; 7. Chuck; 11. Main body through hole; 12. Movable opening; 13. Gear slot; 14. Sliding slot; 31. Finger push gear; 32. Finger push gear plate; 33. Cross sliding frame; 34. Pulling gear plate; 41. Primary gear; 42. Gear shaft; 43. Secondary gear; 51. Displacement back plate; 52. Displacement rod; 521. Limiting slot; 53. Fitting slot; 54. Slot; 61. Mounting plate; 62. Mounting hole; 63. Press buckle; 631. Spring; 71. Limiting rod; 72. Intermediate rod; 73. Connecting block; 731. Moving slot. DETAILED DESCRIPTION

[0026] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0027] Example 1

[0028] See also Figure 1 to Figure 2 Embodiment 1 is described, a sample clamping device for testing comprises a clamp body 1 and a handle 2 arranged at one end of the clamp body 1, a finger push assembly 3 is arranged inside the clamp body 1, the finger push assembly 3 is engaged with a linkage gear assembly 4, the clamp body 1 is provided with a main body through hole 11, a movable opening 12 is arranged on one side of the main body through hole 11, the movable opening 12 is provided with a gear groove 13, a finger push gear 31 is installed on the main body through hole 11, the finger push assembly 3 comprises a finger push tooth plate 32, the finger push tooth plate 32 is engaged with the finger push gear 31, the finger push tooth plate 32 is connected to a cross sliding frame 33, the cross sliding frame 33 is engaged with the sliding groove 14 of the clamp body 1, the cross sliding frame 33 is connected to a pulling tooth plate 34, primary gears 41 are engaged on both sides of the pulling tooth plate 34, the primary gear 41 is fixed on a gear shaft 42, the gear shaft 42 is engaged with the clamp body 1, the linkage gear assembly 4 comprises a secondary gear 43, the secondary gear 43 is engaged with the primary gear 41, and the secondary gear 43 is installed in the gear groove 13.

[0029] In this embodiment, the handle 2 can be used to conveniently take the clamp body 1, and the finger-push gear 31 can be pushed with fingers to rotate, thereby driving the finger-push tooth plate 32 to move horizontally backward, and the finger-push tooth plate 32 drives the cross sliding frame 33 to slide in the sliding groove 14, and the cross sliding frame 33 drives the pulling tooth plate 34 at the other end to move backward, and the cross sliding frame 33 supports the finger-push tooth plate 32 and the pulling tooth plate 34, and the pulling tooth plate 34 drives the first-stage gear 41 on both sides engaged with it to rotate counterclockwise using the gear shaft 42, and the first-stage gear 43 drives the engaged second-stage gear 43 to rotate clockwise.

[0030] Example 2

[0031] See also Figure 3 to Figure 4 Embodiment 2 is described. This embodiment further describes Embodiment 1. The linkage gear assembly 4 is engaged with the displacement assembly 5. The displacement assembly 5 is engaged with the mounting assembly 6. The mounting assembly 6 is provided with a chuck 7. The displacement assembly 5 includes a displacement back plate 51. The displacement back plate 51 is engaged with the displacement rod 52. The bottom surface of the displacement back plate 51 is provided with an engaging groove 53. The engaging groove 53 is engaged with the displacement rod 52. A limiting groove 521 is provided on one side of the displacement rod 52. A slot 54 is provided on the side of the displacement back plate 51. The mounting assembly 6 includes a mounting plate 61. The mounting plate 61 is provided with a mounting hole 62. The mounting hole 62 is engaged with a press buckle 63. A plurality of springs 631 are provided on one side of the press buckle 63. The press buckle 63 is engaged with the slot 54. The chuck 7 is installed at one end of the limiting rod 71. The other end of the limiting rod 71 is engaged with the limiting groove 521. The limiting rod 71 is connected to the intermediate rod 72. The intermediate rod 72 is engaged with the moving groove 731 of the connecting block 73. The connecting block 73 is connected to the mounting plate 61.

[0032] In this embodiment, the secondary gear 43 can drive the displacement rod 52 engaged with it to move to the left side, and at the same time, the displacement rod 52 on the other side is driven to approach the right side, so that the displacement rods 52 on both sides slide in the engaging groove 53 and gather in the middle. The displacement rod 52 uses the limiting groove 521 to drive the limiting rods 71 ​​on both sides to move toward the middle, thereby driving the chucks 7 to approach each other to achieve the clamping operation. The mounting plate 61 can slide the compression spring 631 in the mounting hole 62 by pressing the pressing buckle 63 to disengage the pressing buckle 63 from the slot 54, thereby achieving the removal of the chuck 7 for replacement. This design is simple and quick, greatly shortens the time for replacing the chuck, and improves work efficiency.

[0033] In specific application, first use the handle 2 to pick up the clamp body 1, and use your fingers to push the finger-pushing gear 31 to make it rotate, thereby driving the finger-pushing toothed plate 32 to move horizontally backward, and the finger-pushing toothed plate 32 drives the cross sliding frame 33 to slide in the sliding groove 14, and the cross sliding frame 33 drives the pulling toothed plate 34 at the other end to move backward, and the cross sliding frame 33 supports the finger-pushing toothed plate 32 and the pulling toothed plate 34, and the pulling toothed plate 34 drives the primary gears 41 on both sides engaged with it to rotate counterclockwise using the gear shaft 42, and the primary gear 43 drives the engaged secondary gear 43 to rotate clockwise, and the secondary gear 43 drives the finger-pushing toothed plate 32 and the pulling toothed plate 34 to move backward. The engaged displacement rod 52 moves to the left, and at the same time, the displacement rod 52 on the other side is driven to the right, so that the displacement rods 52 on both sides slide in the engaging groove 53 and gather towards the middle. The displacement rod 52 uses the limiting groove 521 to drive the limiting rods 71 ​​on both sides to move towards the middle, thereby driving the chucks 7 to approach each other to achieve the clamping operation. When the chuck 7 needs to be replaced, the pressing buckle 63 is pressed to slide in the installation hole 62, and the pressing buckle 63 compresses the spring 631 to make the pressing buckle 63 disengage from the slot 54, thereby realizing the removal of the chuck 7 for replacement. This design is simple and fast, which greatly shortens the time for replacing the chuck and improves work efficiency.

[0034] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sample clamping device for a test, comprising a clamp body (1) and a handle (2) provided at one end of the clamp body (1), characterized in that: A finger-push assembly (3) is provided inside the clamp body (1); the finger-push assembly (3) is engaged with a linkage gear assembly (4); the linkage gear assembly (4) is engaged with a displacement assembly (5); the displacement assembly (5) is engaged with a mounting assembly (6); and the mounting assembly (6) is provided with a clamp (7).

2. A test sample clamping device according to claim 1, characterized in that: The clamp body (1) is provided with a body through hole (11), a movable opening (12) is provided on one side of the body through hole (11), the movable opening (12) is provided with a gear groove (13), and a finger-push gear (31) is installed on the body through hole (11).

3. A test sample clamping device according to claim 2, characterized in that: The finger push assembly (3) comprises a finger push tooth plate (32), the finger push tooth plate (32) engages with a finger push gear (31), the finger push tooth plate (32) is connected to a cross sliding frame (33), and the cross sliding frame (33) engages with a sliding groove (14) of the clamp body (1).

4. A test sample clamping device according to claim 3, characterized in that The cross sliding frame (33) is connected to the pulling tooth plate (34), and the first-stage gear (41) is engaged on both sides of the pulling tooth plate (34). The first-stage gear (41) is fixed on the gear shaft (42), and the gear shaft (42) is engaged with the fixture body (1).

5. A test sample clamping device according to claim 1, characterized in that: The linkage gear assembly (4) comprises a secondary gear (43), the secondary gear (43) engages with a primary gear (41), the secondary gear (43) is installed in a gear groove (13), and the displacement assembly (5) comprises a displacement back plate (51), the displacement back plate (51) engages with a displacement rod (52).

6. A test sample clamping device according to claim 5, characterized in that: The bottom surface of the displacement back plate (51) is provided with an engaging groove (53), the engaging groove (53) engages with the displacement rod (52), one side of the displacement rod (52) is provided with a limiting groove (521), and the side surface of the displacement back plate (51) is provided with a slot (54).

7. A test sample clamping device according to claim 1, characterized in that: The mounting assembly (6) comprises a mounting plate (61), the mounting plate (61) being provided with a mounting hole (62), the mounting hole (62) being engaged with a push buckle (63), a plurality of springs (631) being provided on one side of the push buckle (63), and the push buckle (63) being engaged with a slot (54).

8. The test sample clamping device according to claim 1, characterized in that: The chuck (7) is mounted on one end of a limiting rod (71), the other end of the limiting rod (71) is engaged with a limiting groove (521), the limiting rod (71) is connected to an intermediate rod (72), the intermediate rod (72) is engaged with a moving groove (731) of a connecting block (73), and the connecting block (73) is connected to a mounting plate (61).

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