Device for detecting falling resistance of instruments and meters

Abstract

The utility model relates to the technical field of instrument and meter detection, and discloses an instrument and meter falling resistance detection device which comprises a base, a motor is installed on the inner wall of the bottom of the base, one end of an output shaft of the motor is connected with a screw rod through a coupler, and the outer wall of the screw rod is connected with a sliding plate through threads. A sliding groove is formed in the outer wall of the top end of the sliding plate, clamping plates are slidably connected to the inner walls of the two sides of the sliding groove, triangular blocks are fixedly connected to the outer walls of the top ends of the clamping plates, supporting plates are fixedly connected to the outer walls of the two sides of the top end of the sliding plate, and telescopic rods are fixedly connected to the outer walls of one sides of the supporting plates. When a structure clamping an instrument moves to a detection height, the pressing plate pushes the triangular blocks on the two sides, the clamped instrument directly falls off to carry out drop resistance detection, the synchronism is high, the detection speed is higher, an additional driving structure is not needed, the cost is reduced, and the detection efficiency of the drop resistance of the instrument is improved.

Description

Technical Field

[0001] This utility model relates to the field of instrument and meter testing technology, and in particular to an instrument and meter drop resistance testing device. Background Technology

[0002] Instruments and meters are tools or equipment used to detect, measure, observe, and calculate various physical quantities, material composition, and physical property parameters. Vacuum leak detectors, pressure gauges, length measuring instruments, microscopes, multipliers, etc., all belong to instruments and meters. During the production process, the drop resistance of instruments and meters needs to be tested. However, existing drop resistance testing devices have limited testing capabilities and poor performance.

[0003] A search of Chinese patent publication number CN216483820U reveals a drop resistance testing device for instrument manufacturing. This device uses a drive motor to rotate a bidirectional lead screw, causing two clamping plates to move relative to each other and clamp instruments of different sizes. Simultaneously, a rotary motor drives a threaded rod to rotate, allowing the clamping assembly to move the instruments to different heights. Based on the interaction between a distance sensor and the top plate, targeted testing of the instruments can be performed, significantly expanding the device's application range and making the test data more accurate and reliable.

[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. It uses a bidirectional lead screw to control the clamping plate to clamp the instrument and then uses a threaded rod to control the height to perform drop resistance tests at different heights. However, the clamping structure cannot automatically and quickly release the instrument for testing after moving to the specified height. Using a different motor to drive the test is more costly and affects the testing speed, thus reducing the efficiency of the drop resistance test. Utility Model Content

[0005] The purpose of this utility model is to solve the problems raised in the background art by proposing an instrument and meter drop resistance testing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An instrument drop resistance testing device includes a base. A motor is installed on the inner wall of the bottom of the base. One end of the motor's output shaft is connected to a screw via a coupling. A sliding plate is threadedly connected to the outer wall of the screw. A groove is formed on the top outer wall of the sliding plate. Clamping plates are slidably connected to the inner walls of both sides of the groove. Triangular blocks are fixedly connected to the top outer walls of both clamping plates. Support plates are fixedly connected to the top outer walls of both sides of the sliding plate. A telescopic rod is fixedly connected to one outer wall of each support plate. One end of the piston rod of the telescopic rod is fixedly connected to the outer wall of the triangular blocks. A limit rod is fixedly connected to the inner wall of the base. A slider is slidably connected to the outer wall of the limit rod. A pressing plate is fixedly connected to one outer wall of the slider. A fixing plate is fixedly connected to the top outer wall of the slider. A limit hole is formed on one outer wall of the fixing plate. A locking knob is threadedly connected to the inner wall of the limit hole.

[0008] Preferably, the triangular blocks are all arranged in right-angled triangles, and a second spring is sleeved on the outer wall of one end of the telescopic rod piston rod. Both ends of the second spring are connected to the triangular blocks and the telescopic rod.

[0009] Preferably, the pressing plate is arranged in an isosceles trapezoidal shape, and the size of each pressing plate is adapted to the size of the triangular block.

[0010] Preferably, one outer wall of the limiting rod is provided with scale markings, and the sliding plate is slidably connected to the outer wall of the limiting rod.

[0011] Preferably, the top inner wall of the base is provided with an installation groove, and springs are fixedly connected to both inner walls of the installation groove, and a base plate is fixedly connected to the top outer wall of the springs.

[0012] Preferably, a placement frame is fixedly connected to the top outer wall of the base plate, the base plate is slidably connected to the inner wall of the mounting groove, the placement frame is located directly below the clamping plate, the clamping plates are all adapted to the size of the instrument body, and a pressure sensor is installed on the bottom outer wall of the placement frame.

[0013] Compared with the prior art, this utility model provides an instrument drop resistance testing device, which has the following beneficial effects:

[0014] 1. This instrument drop resistance testing device consists of a base, motor, sliding plate, limit rod, pressing plate, and triangular blocks. When the triangular block at the top of the sliding plate contacts the pressing plate, the isosceles trapezoidal pressing plate directly contacts the inclined surface of the triangular block. The triangular block slides to both sides, compressing the telescopic rod, and the clamping plate separates, directly releasing the instrument. The instrument falls into the placement frame for drop resistance testing. A pressure sensor detects the pressure received. To test different heights, simply adjust the slider up and down. The pressing plate is directly set at the top of the clamping structure. When the clamping structure holding the instrument moves to the testing height, the pressing plate pushes the triangular blocks on both sides, causing the clamped instrument to fall directly for drop resistance testing. It has high synchronization and faster testing speed, does not require an additional drive structure, reduces costs, and improves the efficiency of instrument drop resistance testing.

[0015] 2. This instrument drop resistance testing device, by setting a limit rod, scale marks and telescopic rod, can clamp instruments of different sizes within the extension range of spring two on the telescopic rod, thus having a wider range of applications. The limit rod can limit the lifting and lowering of the sliding plate to improve structural stability and enhance the practicality of the testing device. Attached Figure Description

[0016] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the limiting rod connection structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the triangular block connection structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the pressing plate connection structure of this utility model.

[0020] 1. Base; 2. Motor; 3. Support plate; 4. Spring 1; 5. Base plate; 6. Placement frame; 7. Limiting rod; 8. Sliding plate; 9. Clamping plate; 10. Scale markings; 11. Screw; 12. Pressing plate; 13. Fixing plate; 14. Telescopic rod; 15. Spring 2; 16. Triangular block; 17. Locking knob; 18. Slider. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4The instrument drop resistance testing device includes a base 1. A motor 2 is installed on the inner wall of the bottom of the base 1. One end of the output shaft of the motor 2 is connected to a screw 11 via a coupling. A sliding plate 8 is threadedly connected to the outer wall of the screw 11. A groove is opened on the outer wall of the top of the sliding plate 8. Clamping plates 9 are slidably connected to the inner walls of both sides of the groove. Triangular blocks 16 are fixedly connected to the outer wall of the top of the clamping plates 9. Support plates 3 are fixedly connected to the outer walls of both sides of the top of the sliding plate 8. Telescopic rods 14 are fixedly connected to one side of the outer wall of the support plates 3. One end of the piston rod of the telescopic rod 14 is fixedly connected to the outer wall of the triangular blocks 16. A limit rod 7 is fixedly connected to the inner wall of the base 1. A slider 18 is slidably connected to the outer wall of the limit rod 7. A pressing plate 12 is fixedly connected to one side of the outer wall of the slider 18. A fixing plate 13 is fixedly connected to the outer wall of the top of the slider 18. A limit hole is opened on one side of the outer wall of the fixing plate 13. A locking knob 17 is threadedly connected to the inner wall of the limit hole.

[0023] Among them, the triangular blocks 16 are all arranged in right-angled triangles, and the outer wall of one end of the piston rod of the telescopic rod 14 is fitted with a spring 15. Both ends of the spring 15 are connected to the triangular blocks 16 and the telescopic rod 14. The pressing plate 12 is arranged in an isosceles trapezoid and the size of the pressing plate 12 is adapted to the triangular blocks 16. The outer wall of one side of the limiting rod 7 is provided with a scale mark 10, and the sliding plate 8 is slidably connected to the outer wall of the limiting rod 7.

[0024] Meanwhile, the top inner wall of the base 1 is provided with an installation groove, and spring 4 is fixedly connected to both inner walls of the installation groove. The top outer wall of spring 4 is fixedly connected to a base plate 5, and the top outer wall of the base plate 5 is fixedly connected to a placement frame 6. The base plate 5 is slidably connected to the inner wall of the installation groove, and the placement frame 6 is located directly below the clamping plate 9. The clamping plates 9 are all adapted to the size of the instrument body. A pressure sensor is installed on the bottom outer wall of the placement frame 6. Spring 15 on the telescopic rod 14 facilitates the reset of the triangular block 16. Spring 4 at the bottom of the placement frame 6 facilitates the reset of the structure. The limiting rod 7 can limit the lifting and lowering of the sliding plate 8 to improve the stability of the structure.

[0025] In this invention, when testing instruments, the two clamping plates 9 are manually separated, and the instrument to be tested is placed between the clamping plates 9. Under the action of the spring 15 on the telescopic rod 14, the clamping plates 9 hold the instrument. The slider 18 moves up and down, and moves to the specified testing height in conjunction with the scale mark 10 on the limit rod 7. The motor 2 controls the screw 11 to rotate, thereby causing the sliding plate 8 to lift the instrument. When the triangular block 16 at the top of the sliding plate 8 abuts against the pressing plate 12, the isosceles trapezoidal pressing plate 12 directly abuts against the inclined surface of the triangular block 16. The triangular block 16 slides to both sides, thereby compressing the telescopic rod 14. Furthermore, the clamping plate 9 also separates and directly releases the instrument. The instrument falls into the placement frame 6 to test its drop resistance. The pressure sensor detects the pressure it receives. When different heights need to be tested, the slider 18 only needs to be adjusted up and down. Instruments of different sizes can be clamped within the extension range of the second spring 15 on the telescopic rod 14, making it more widely applicable. The sliding is limited and fixed by the locking knob 17 on the top fixing plate 13. The second spring 15 on the telescopic rod 14 facilitates the reset of the triangular block 16. The first spring 4 at the bottom of the placement frame 6 facilitates the reset of the structure. The limiting rod 7 can limit the lifting and lowering of the sliding plate 8 to improve structural stability.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. Apparatus for testing the resistance to falls of an instrument, comprising a base (1), characterized in that, A motor (2) is installed on the bottom inner wall of the base (1). One end of the output shaft of the motor (2) is connected to a screw (11) via a coupling. A sliding plate (8) is threaded onto the outer wall of the screw (11). A groove is provided on the top outer wall of the sliding plate (8). Clamping plates (9) are slidably connected to the inner walls of both sides of the groove. Triangular blocks (16) are fixedly connected to the top outer walls of the clamping plates (9). Supporting plates (3) are fixedly connected to the top outer walls of the sliding plate (8). One side outer wall of the supporting plate (3) is fixedly connected to the supporting plate (3). A telescopic rod (14) is connected, and one end of the piston rod of the telescopic rod (14) is fixedly connected to the outer wall of the triangular block (16). A limit rod (7) is fixedly connected to the inner wall of the base (1). A slider (18) is slidably connected to the outer wall of the limit rod (7). A pressing plate (12) is fixedly connected to one side of the outer wall of the slider (18). A fixing plate (13) is fixedly connected to the top outer wall of the slider (18). A limit hole is opened on one side of the outer wall of the fixing plate (13). A locking knob (17) is threadedly connected to the inner wall of the limit hole.

2. The apparatus of claim 1, wherein, The triangular blocks (16) are all arranged in right-angled triangles. One end of the piston rod of the telescopic rod (14) is fitted with a spring (15). Both ends of the spring (15) are connected to the triangular blocks (16) and the telescopic rod (14).

3. The apparatus of claim 1, wherein, The pressing plate (12) is arranged in an isosceles trapezoidal shape, and the pressing plate (12) is adapted to the size of the triangular block (16).

4. The apparatus of claim 1, wherein, The outer wall of the limiting rod (7) is provided with a scale mark (10), and the sliding plate (8) is slidably connected to the outer wall of the limiting rod (7).

5. The apparatus of claim 1, wherein, The top inner wall of the base (1) is provided with an installation groove, and springs (4) are fixedly connected to both inner walls of the installation groove. The top outer wall of springs (4) is fixedly connected to a base plate (5).

6. The apparatus of claim 5, wherein, The top outer wall of the base plate (5) is fixedly connected to a placement frame (6), the base plate (5) is slidably connected to the inner wall of the mounting groove, the placement frame (6) is located directly below the clamping plate (9), the clamping plate (9) is adapted to the size of the instrument body, and a pressure sensor is installed on the bottom outer wall of the placement frame (6).

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