Bio-safety cabinet PCB debugging jig

Abstract

The utility model relates to the technical field of biological safety cabinets, and discloses a biological safety cabinet PCB debugging jig which comprises a base, a supporting frame is fixedly installed at the upper end of the base, a sliding groove is formed in the inner side of the supporting frame, a lifting plate is movably installed on the inner side of the sliding groove, and a handle and a connecting plate are fixedly installed at the front end of the lifting plate. A testing plate is fixed to the lower end of the connecting plate, a first protruding block is fixedly installed at the rear end of the lifting plate, and a groove is formed in the inner side of the supporting frame. The biological safety cabinet PCB debugging jig is provided with the lifting plate, a user drives the lifting plate to move up and down through the handle, the testing plate is located on the outer side of the lifting plate and cooperates with the jig plate at the bottom to debug a biological safety cabinet PCB, the second protruding block is installed on the movable plate on the rear side and attached to the first protruding block at the rear end of the lifting plate, the testing plate is prevented from moving upwards, and the testing efficiency is improved. According to the PCB clamping fixture, clamping and fixing of the PCB are achieved, overall use and operation are more convenient, the PCB clamping fixture is suitable for PCBs of different thicknesses, and the universality of the fixture is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biosafety cabinets, in particular to a biosafety cabinet PCB debugging fixture. Background Art

[0002] A biological safety cabinet is a box-type air purification negative pressure safety device that can prevent the escape of aerosols containing certain dangerous or unknown biological particles during experimental operations. It is widely used in scientific research, teaching, clinical testing and production in the fields of microbiology, biomedicine, genetic engineering, and biological products. It is the most basic safety protection equipment in the first-level protection barrier of laboratory biosafety. The PCB in the biological safety cabinet needs to be debugged using a jig.

[0003] Currently, most biosafety cabinet PCB debugging fixtures have a single structure, and all of them use a flip structure to drive the test board to rise and fall. Each fixture is only suitable for the corresponding PCB and cannot be applied to PCBs of different thicknesses, resulting in poor versatility. Utility Model Content

[0004] (1) Technical problems solved

[0005] The purpose of the present utility model is to provide a biosafety cabinet PCB debugging jig to solve the problem that most biosafety cabinet PCB debugging jigs proposed in the above background technology have a single structure and all use a flip structure to drive the test board to rise and fall. Each jig is only suitable for the corresponding PCB and cannot be used for PCBs of different thicknesses, resulting in poor versatility.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCB debugging jig for a biological safety cabinet, comprising a base, a support frame fixedly installed on the upper end of the base, a slide groove being provided on the inner side of the support frame, a lifting plate movably installed on the inner side of the slide groove, a handle and a connecting plate being fixedly installed on the front end of the lifting plate, a test plate being fixed on the lower end of the connecting plate, a protrusion 1 being fixedly installed on the rear end of the lifting plate, a groove being provided on the inner side of the support frame, a guide rod 1 being fixedly installed inside the groove, a movable plate and a spring 1 being movably installed on the outer side of the guide rod 1, a protrusion 2 being fixedly installed on the front end of the movable plate, a connecting rod being movably installed on the front end of the support frame, a control plate being fixedly installed on the front end of the connecting rod, a guide rod 2 being fixedly installed on the upper end of the base, a spring 2 being sleeved on the outer side of the guide rod 2, and a jig plate being fixedly installed on the upper end of the base.

[0008] Preferably, two support frames are symmetrically provided on the upper end of the base, and the handle is located above the lifting plate. The slide groove guides the lifting plate, and the lifting plate is driven to move up and down by the handle.

[0009] Preferably, two guide rods are respectively provided inside the groove, and the spring is located at the rear end of the movable plate. The guide rod pair guides the movable plate, and the spring pair applies a forward thrust to the movable plate.

[0010] Preferably, the bump one and the bump two are triangular structures, the outer side of the bump one fits with the outer side of the bump two, the connecting rod passes through the support frame and is fixedly connected to the front end of the movable plate, when the lifting plate moves downward, the bump one contacts the bump two, and the bump two prevents the lifting plate from moving upward through the bump one.

[0011] Preferably, four guide rods 2 are symmetrically arranged on both sides of the support frame, the connecting plate and the guide rod 2 are movably connected, and the guide rod 2 plays a guiding role on the connecting plate.

[0012] Preferably, the second spring is located at the lower end of the connecting plate, and the fixture plate is located directly below the test plate, and the second spring applies an upward thrust to the connecting plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the biosafety cabinet PCB debugging jig is provided with a lifting plate, and the user drives the lifting plate up and down through the handle, the test plate is located on the outside of the lifting plate, and cooperates with the jig plate at the bottom to debug the biosafety cabinet PCB, and a second bump is installed on the movable plate on the rear side, and the second bump is fitted with the first bump at the rear end of the lifting plate to prevent the test board from moving upward, thereby achieving clamping and fixing of the PCB. The overall use and operation is more convenient, and it is suitable for PCBs of different thicknesses, thereby improving the versatility of the jig. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0018] Among them: 1. Base; 2. Support frame; 3. Slide; 4. Lifting plate; 5. Handle; 6. Connecting plate; 7. Test plate; 8. Bump 1; 9. Groove; 10. Guide rod 1; 11. Movable plate; 12. Spring 1; 13. Bump 2; 14. Connecting rod; 15. Control plate; 16. Guide rod 2; 17. Spring 2; 18. Fixture plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4 The utility model provides a technical solution: a biosafety cabinet PCB debugging fixture, comprising a base 1, a support frame 2 is fixedly installed on the upper end of the base 1, a slide groove 3 is opened on the inner side of the support frame 2, a lifting plate 4 is movably installed on the inner side of the slide groove 3, a handle 5 and a connecting plate 6 are fixedly installed on the front end of the lifting plate 4, two support frames 2 are symmetrically provided on the upper end of the base 1, the handle 5 is located above the lifting plate 4, a test plate 7 is fixed to the lower end of the connecting plate 6, the slide groove 3 guides the lifting plate 4, and the lifting plate 4 is driven up and down by the handle 5;

[0021] The rear end of the lifting plate 4 is fixedly installed with a protrusion 8, and a groove 9 is provided on the inner side of the support frame 2. A guide rod 10 is fixedly installed inside the groove 9, and a movable plate 11 and a spring 12 are movably installed on the outer side of the guide rod 10. Two guide rods 10 are respectively provided inside the groove 9, and the spring 12 is located at the rear end of the movable plate 11. A protrusion 2 13 is fixedly installed at the front end of the movable plate 11, and a connecting rod 14 is movably installed at the front end of the support frame 2. A control plate 15 is fixedly installed at the front end of the connecting rod 14. The protrusion 18 and the protrusion 2 13 are triangular structures, and the outer side of the protrusion 18 fits with the outer side of the protrusion 2 13. The connecting rod 14 passes through the support frame 2 and is fixedly connected to the front end of the movable plate 11. The guide rod 10 guides the movable plate 11, and the spring 12 applies a forward thrust to the movable plate 11. When the lifting plate 4 moves downward, the protrusion 18 contacts the protrusion 2 13, and the protrusion 2 13 prevents the lifting plate 4 from moving upward through the protrusion 18;

[0022] A guide rod 2 16 is fixedly installed on the upper end of the base 1, and a spring 2 17 is sleeved on the outer side of the guide rod 2 16. Four guide rods 2 16 are symmetrically arranged on both sides of the support frame 2. The connecting plate 6 and the guide rod 2 16 are movably connected. The spring 2 17 is located at the lower end of the connecting plate 6. The fixture plate 18 is located directly below the test plate 7. The jig plate 18 is fixedly installed on the upper end of the base 1. The guide rod 2 16 guides the connecting plate 6, and the spring 2 17 applies an upward thrust to the connecting plate 6.

[0023] Working principle: First, place the biosafety cabinet PCB on the upper end of the jig plate 18, then drive the lifting plate 4 downward through the handle 5, and the test plate 7 moves with the lifting plate 4. During the downward movement of the lifting plate 4, the bump 1 8 at the rear end contacts the bump 2 13. When the test board 7 contacts the upper end of the PCB, release the handle 5, and the spring 12 applies a forward thrust to the movable plate 11, so that the bump 2 13 is engaged with the bump 1 8. The bump 2 13 prevents the lifting plate 4 from moving upward through the bump 1 8. After debugging is completed, press the control board 15, and the control board 15 drives the movable plate 11 to move backward through the connecting rod 14. The bump 2 13 is separated from the bump 1 8, and the spring 2 17 applies an upward thrust to the connecting plate 6 to complete the automatic reset of the connecting plate 6. This jig is suitable for PCBs of different thicknesses, which improves the versatility of the jig.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biosafety cabinet PCB debugging fixture, comprising a base (1), characterized in that: A support frame (2) is fixedly mounted on the upper end of the base (1), a slide groove (3) is provided on the inner side of the support frame (2), a lifting plate (4) is movably mounted on the inner side of the slide groove (3), a handle (5) and a connecting plate (6) are fixedly mounted on the front end of the lifting plate (4), a test plate (7) is fixed on the lower end of the connecting plate (6), a protrusion (8) is fixedly mounted on the rear end of the lifting plate (4), a groove (9) is provided on the inner side of the support frame (2), and a guide rod (10) is fixedly mounted inside the groove (9). The outer side of the guide rod 1 (10) is movably mounted with a movable plate (11) and a spring 1 (12); the front end of the movable plate (11) is fixedly mounted with a protrusion 2 (13); the front end of the support frame (2) is movably mounted with a connecting rod (14); the front end of the connecting rod (14) is fixedly mounted with a control plate (15); the upper end of the base (1) is fixedly mounted with a guide rod 2 (16); the outer side of the guide rod 2 (16) is sleeved with a spring 2 (17); and the upper end of the base (1) is fixedly mounted with a fixture plate (18).

2. The biosafety cabinet PCB debugging fixture according to claim 1, characterized in that: Two support frames (2) are symmetrically arranged on the upper end of the base (1), and the handle (5) is located above the lifting plate (4).

3. The biosafety cabinet PCB debugging fixture according to claim 1, characterized in that: The guide rods (10) are provided with two each inside the groove (9), and the spring (12) is located at the rear end of the movable plate (11).

4. The biosafety cabinet PCB debugging fixture according to claim 1, characterized in that: The protrusion 1 (8) and the protrusion 2 (13) are triangular structures, the outer side of the protrusion 1 (8) fits with the outer side of the protrusion 2 (13), and the connecting rod (14) passes through the support frame (2) and is fixedly connected to the front end of the movable plate (11).

5. The biosafety cabinet PCB debugging fixture according to claim 1, characterized in that: Four guide rods 2 (16) are symmetrically arranged on both sides of the support frame (2), and the connecting plate (6) is movably connected to the guide rod 2 (16).

6. The biosafety cabinet PCB debugging fixture according to claim 1, characterized in that: The second spring (17) is located at the lower end of the connecting plate (6), and the fixture plate (18) is located directly below the test plate (7).

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