Anti-pinch sensor testing device

Abstract

The utility model relates to an anti-pinch sensor testing device, which is applied to the field of safety protection and comprises a base, a testing seat and a PCB testing board erected on the base, a supporting shaft is arranged on the base, a mounting plate is arranged at one end, away from the base, of the supporting shaft, a lifting air cylinder is arranged on the mounting plate, and a sealing pressing plate is in sliding connection with the supporting shaft. A limiting assembly used for limiting the position of the sealing pressing plate is arranged on the base. When the lifting air cylinder is in an upward shrinkage state, the limiting assembly is located between the base and the sealing pressing plate. When the lifting air cylinder is in a downward pressing state, the limiting assembly breaks away from the downward pressing range of the sealing pressing plate. The sealing device has the technical effects that the limiting assembly is located between the base and the sealing pressing plate and plays a role in limiting the position of the sealing pressing plate, if the sealing pressing plate is accidentally pressed downwards, the limiting assembly can abut against the sealing pressing plate to prevent the sealing pressing plate from continuously pressing downwards, the possibility that the sealing pressing plate accidentally falls to clamp the hand of an operator is reduced, and the working efficiency is improved. And the operation safety is improved.

Description

Technical Field

[0001] The present application relates to the technical field of safety protection, and in particular to a sensor testing device for preventing finger pinching. Background Art

[0002] A sensor is a device that can sense the information being measured and convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control.

[0003] When the sensor needs to be tested, the testing environment of the sensor needs to be in a high-pressure sealed state. The operator places the sensor inside the test seat. The bottom of the test seat is connected to a PCB test board. Four PCB positioning slots are provided on the PCB test board. The PCB test board is provided with a first positioning hole and a second positioning hole. The size of the first positioning hole is larger than the second positioning hole. The test seat and the PCB test board are placed in the testing equipment, and the test seat is sealed by the lifting cylinder of the lifting device. A sealing pressure plate is provided at the output end of the lifting cylinder, and a sealing cavity is provided on the sealing pressure plate; when the lifting cylinder is in a downward pressure state, the sealing pressure plate contacts the PCB test board and the test seat is located in the sealing cavity as a whole. Then the sensor is tested, and the test results are transmitted to the external device for analysis through the PCB test board; when the lifting cylinder is in an upward retracted state, there is a gap between the sealing pressure plate and the PCB test board, and the operator can take the test seat and replace the sensor in the test seat.

[0004] During the use of existing sensor detection equipment, the lifting cylinder may accidentally fall and injure the operator due to external factors, endangering the personal safety of the operator and posing a safety hazard. Summary of the invention

[0005] In order to help solve the problem that the lifting cylinder of existing sensor detection equipment is easily affected by external factors and accidentally falls and injures the operator during use, thus posing a safety hazard, the present application provides a sensor testing device with anti-pinching function, which adopts the following technical scheme: it includes a base, a test socket and a PCB test board are mounted on the base, the base is provided with a support shaft, the end of the support shaft away from the base is provided with a mounting plate, the lifting cylinder is arranged on the mounting plate, the sealing pressure plate is slidably connected to the support shaft, and the base is provided with a limit assembly for limiting the position of the sealing pressure plate; when the lifting cylinder is in a retracted state, the limit assembly is located between the base and the sealing pressure plate; when the lifting cylinder is in a downward pressure state, the limit assembly is out of the downward pressure range of the sealing pressure plate.

[0006] Through the above technical solution, the lifting cylinder drives the sealing plate to press down and cover the test seat inside the sealing cavity. At this time, the limit assembly is out of the pressing range of the sealing plate, and then the sensor is tested. After the test is completed, the lifting cylinder starts to drive the sealing plate to lift up. At this time, the limit assembly is located between the base and the sealing plate, and the operator can take the test seat and replace the sensor in the test seat. When the operator reaches into the pressing range of the sealing plate, the limit assembly between the base and the sealing plate limits the position of the sealing plate. If the sealing plate is accidentally pressed down, the limit assembly will resist the sealing plate to prevent the sealing plate from continuing to press down, reducing the possibility of the sealing plate accidentally falling and clamping the operator's hand, thereby improving operational safety.

[0007] In a specific feasible implementation scheme, the limit assembly includes a telescopic cylinder arranged on a base, and a limit block is provided at the output end of the telescopic cylinder; when the lifting cylinder is in a retracted state, the telescopic cylinder is started and the limit block is located between the base and the sealing pressure plate; when the lifting cylinder is in a downward pressure state, the telescopic cylinder is started and the limit block is out of the downward pressure range of the sealing pressure plate.

[0008] Through the above technical scheme, when the lifting cylinder is in the retracted state, the telescopic cylinder starts to drive the limit block to move, so that the limit block is located between the base and the sealing pressure plate. The operator puts his hand into the downward pressure range of the sealing pressure plate. If the sealing pressure plate is accidentally pressed down, the limit block will resist the sealing pressure plate to prevent the sealing pressure plate from continuing to press down. The limit block limits the position of the sealing pressure plate, reduces the possibility of the sealing pressure plate accidentally falling and clamping the operator's hand, and improves operational safety.

[0009] In a specific feasible implementation scheme, a connecting plate is provided at the output end of the telescopic cylinder, a mounting bolt is passed through the limit block, a mounting groove matching the mounting bolt is opened on the connecting plate, and the mounting bolt is threadedly connected in the mounting groove.

[0010] Through the above technical solution, the operator can remove the limit block from the connecting block by means of bolt disassembly, thereby realizing a detachable connection of the limit block, which is more flexible and facilitates the subsequent replacement of limit blocks of different shapes.

[0011] In a specific possible implementation scheme, a limiting groove matching the supporting shaft is formed on the surface of the limiting block facing the supporting shaft; when the lifting cylinder is in the retracted state, the telescopic cylinder is started and the supporting shaft is located in the limiting groove.

[0012] Through the above technical solution, when the lifting cylinder is in the retracted state, the telescopic cylinder is started to drive the limit block to move toward the support shaft, so that the support shaft is located in the limit groove, thereby improving the stability of the limit block when limiting the sealing pressure plate support.

[0013] In a specific implementation scheme, a first annular sealing groove is formed on the surface of the sealing pressure plate facing the base, the sealing cavity is located at the inner edge of the first annular sealing groove, and a first sealing ring matching the first annular sealing groove is provided in the first annular sealing groove.

[0014] Through the above technical solution, the first sealing ring plays a role of shock absorption and buffering while improving the sealing between the sealing pressure plate and the PCB test board.

[0015] In a specific implementation scheme, a second annular sealing groove corresponding to the first annular sealing groove is opened on the surface of the base facing the sealing pressure plate, the test seat is located at the inner edge of the second annular sealing groove, and a second sealing ring matching the second annular sealing groove is provided in the second annular sealing groove.

[0016] Through the above technical solution, when the sealing pressure plate presses down on the PCB test board, the PCB test board is pressed tightly between the first sealing ring and the second sealing ring, and the second sealing ring plays a role of shock absorption and buffering, reducing the possibility of the sealing pressure plate crushing the PCB test board.

[0017] In a specific possible implementation manner, a buffer groove is provided on the surface of the sealing pressure plate facing the base, and a buffer pad matching the buffer groove is provided in the buffer groove.

[0018] Through the above technical solution, when the sealing pressing plate presses down on the PCB test board, the buffer pad plays a buffering role, reducing the possibility of the sealing pressing plate crushing the PCB test board.

[0019] In a specific possible implementation scheme, the base is provided with four positioning blocks respectively matching with the PCB positioning grooves, and the four positioning blocks are respectively plugged into four PCB positioning grooves of the PCB test board.

[0020] Through the above technical solution, the four positioning blocks play a positioning role on the position of the PCB test board, reducing the possibility of the PCB test board being offset and improving the stability of the PCB test board placed on the base.

[0021] In a specific feasible implementation scheme, the base is provided with a first positioning groove matching the first positioning hole, a first positioning pin matching the first positioning groove is inserted into the first positioning groove, and the base is provided with a second positioning groove matching the second positioning hole, a second positioning pin matching the second positioning groove is inserted into the second positioning groove.

[0022] Through the above technical solution, since the size of the first positioning hole on the PCB test board is larger than the size of the second positioning hole, the first positioning pin is inserted in the first positioning groove, and the second positioning pin is inserted in the second positioning groove, so that the PCB test board can only be placed on the base according to the position where the first positioning pin passes through the first positioning hole and the second positioning pin passes through the second positioning hole, which reduces the possibility of incorrect placement angle of the PCB test board, plays an anti-mistake function, and improves the accuracy of the placement position of the PCB test board.

[0023] In a specific feasible implementation scheme, a plurality of guide columns are provided on the base, a plurality of the guide columns are respectively provided with threaded columns at one end away from the base, a plurality of the threaded columns are respectively passed through the mounting plate, a first mounting nut and a second mounting nut are respectively threadedly connected to a plurality of the threaded columns, and the mounting plate is tightened between the first mounting nut and the second mounting nut.

[0024] Through the above technical solution, a number of guide columns support the mounting plate, thereby improving the stability of the mounting plate. The operator can use the threaded column to adjust the position of the mounting plate. After adjusting to the appropriate position, the first mounting nut and the second mounting nut are tightened to fix the position of the mounting plate, thereby realizing the adjustable position of the mounting plate, which is more flexible and has an enhanced scope of application.

[0025] In summary, the present application has the following beneficial technical effects: the lifting cylinder drives the sealing plate to press down and cover the test seat inside the sealing cavity. At this time, the limit assembly is out of the pressing range of the sealing plate, and then the sensor is tested. After the test is completed, the lifting cylinder starts to drive the sealing plate to lift up. At this time, the limit assembly is located between the base and the sealing plate, and the operator can take the test seat and replace the sensor in the test seat. When the operator reaches into the pressing range of the sealing plate, the limit assembly is located between the base and the sealing plate to limit the position of the sealing plate. If the sealing plate is accidentally pressed down, the limit assembly will resist the sealing plate to prevent the sealing plate from continuing to press down, reducing the possibility of the sealing plate accidentally falling and clamping the operator's hand, thereby improving operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 It is a schematic structural diagram for illustrating the first annular sealing groove in an embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the structure of the second annular sealing groove in the embodiment of the present application.

[0029] : 1. base; 2. test seat; 3. PCB test board; 4. support shaft; 5. mounting plate; 6. lifting cylinder; 7. sealing pressure plate; 8. limit assembly; 9. telescopic cylinder; 10. limit block; 11. connecting plate; 12. mounting groove; 13. limit groove; 14. first annular sealing groove; 15. second annular sealing groove; 16. buffer groove; 17. positioning block; 18. first positioning groove; 19. first positioning pin; 20. second positioning groove; 21. second positioning pin; 22. PCB positioning groove; 23. guide column; 24. first mounting nut; 25. second mounting nut; 26. sealing chamber; 27. threaded column; 28. buffer pad. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] The embodiment of the present application discloses a sensor testing device for preventing finger pinching.

[0032] Reference Figure 1 The sensor test device for preventing finger pinching includes a base 1, on which four positioning blocks 17 respectively matched with PCB positioning grooves 22 are fixedly connected, and the four positioning blocks 17 are respectively inserted into the four PCB positioning grooves 22 of the PCB test board 3. The four positioning blocks 17 play a positioning role on the position of the PCB test board 3, reducing the possibility of the PCB test board 3 being offset and improving the stability of the PCB test board 3 placed on the base 1. The test seat 2 and the PCB test board 3 are set on the base 1, and the operator can also set a PCB adapter board according to actual conditions. The PCB adapter board is connected to the PCB test board 3, so as to realize the planning of the lines connected to the PCB test board 3 and improve the space utilization rate.

[0033] Reference Figure 1 and Figure 2 A support shaft 4 is provided on the base 1, and a mounting plate 5 is provided at one end of the support shaft 4 away from the base 1. In the embodiment of the present application, two support shafts 4 are provided and are located on both sides of the test seat 2. The lifting cylinder 6 is bolted to the mounting plate 5, and the sealing pressure plate 7 is slidably connected to the support shaft 4. A limit assembly 8 for limiting the position of the sealing pressure plate 7 is provided on the base 1. The limit assembly 8 includes a telescopic cylinder 9 provided on the base 1. In the embodiment of the present application, the number of telescopic cylinders 9 is set to two and is located on both sides of the test seat 2. Limit blocks 10 are provided at the output ends of the two telescopic cylinders 9; when the lifting cylinder 6 is in the retracted state, the telescopic cylinder 9 is started and the limit block 10 is located between the base 1 and the sealing pressure plate 7; when the lifting cylinder 6 is in the downward pressure state, the telescopic cylinder 9 is started and the limit block 10 is out of the downward pressure range of the sealing pressure plate 7.

[0034] Therefore, when the lifting cylinder 6 is in the retracted state, the telescopic cylinder 9 starts to drive the limit block 10 to move, so that the limit block 10 is located between the base 1 and the sealing pressure plate 7, and the operator puts his hand into the downward pressure range of the sealing pressure plate 7. If the sealing pressure plate 7 is accidentally pressed down, the limit block 10 will resist the sealing pressure plate 7 to prevent the sealing pressure plate 7 from continuing to press down. The limit block 10 limits the position of the sealing pressure plate 7, reduces the possibility of the sealing pressure plate 7 accidentally falling and clamping the operator's hand, and improves operational safety.

[0035] Reference Figure 1 and Figure 2 , a limiting groove 13 matching the size of the support shaft 4 is provided on the surface of the limiting block 10 facing the support shaft 4; when the lifting cylinder 6 is in the retracted state, the telescopic cylinder 9 is started to drive the limiting block 10 to move toward the support shaft 4, so that the support shaft 4 is located in the limiting groove 13, thereby improving the stability of the limiting block 10 when supporting the sealing pressure plate 7. A connecting plate 11 is provided at the output end of the telescopic cylinder 9, and a mounting bolt is passed through the limiting block 10. A mounting groove 12 matching the mounting bolt is provided on the connecting plate 11, and the mounting bolt is threadedly connected in the mounting groove 12. The operator can remove the limiting block 10 from the connecting block by disassembling the bolts, thereby realizing the detachable connection of the limiting block 10, which is more flexible and convenient for the subsequent replacement of limiting blocks 10 of different shapes.

[0036] Reference Figure 1 and Figure 2 , a plurality of guide posts 23 are threadedly connected to the base 1. In the embodiment of the present application, the number of guide posts 23 is set to four and evenly distributed on the base 1. The ends of the four guide posts 23 away from the base 1 are respectively provided with threaded posts 27, and the four threaded posts 27 are respectively passed through the mounting plate 5. The four threaded posts 27 are respectively threadedly connected with the first mounting nut 24 and the second mounting nut 25, and the mounting plate 5 is pressed tightly between the first mounting nut 24 and the second mounting nut 25. Therefore, the guide posts 23 play a supporting role for the mounting plate 5, and improve the stability of the mounting plate 5. The operator can use the threaded posts 27 to adjust the position of the mounting plate 5. After adjusting to the appropriate position, tighten the first mounting nut 24 and the second mounting nut 25 to fix the position of the mounting plate 5, thereby realizing the adjustable position of the mounting plate 5, which is more flexible and has an enhanced scope of application.

[0037] Reference Figure 2 and Figure 3A first annular sealing groove 14 is provided on the surface of the sealing plate 7 facing the base 1, and the sealing cavity 26 is located at the inner edge of the first annular sealing groove 14. A first sealing ring matching the first annular sealing groove 14 is provided in the first annular sealing groove 14. The first sealing ring plays a role of shock absorption and buffering, while improving the sealing between the sealing plate 7 and the PCB test board 3. A second annular sealing groove 15 corresponding to the position of the first annular sealing groove 14 is provided on the surface of the base 1 facing the sealing plate 7, and the test seat 2 is located at the inner edge of the second annular sealing groove 15. A second sealing ring matching the second annular sealing groove 15 is provided in the second annular sealing groove 15. Therefore, when the sealing plate 7 presses down to press the PCB test board 3, the PCB test board 3 is pressed tightly between the first sealing ring and the second sealing ring, and the second sealing ring plays a role of shock absorption and buffering, reducing the possibility of the sealing plate 7 crushing the PCB test board 3.

[0038] Reference Figure 2 and Figure 3 The surface of the sealing plate 7 facing the base 1 is provided with a buffer groove 16, and a buffer pad 28 matching the buffer groove 16 is bonded in the buffer groove 16. The buffer pad 28 is a silicone pad. When the sealing plate 7 presses down on the PCB test board 3, the buffer pad 28 plays a buffering role, reducing the possibility of the sealing plate 7 crushing the PCB test board 3.

[0039] Reference Figure 1 and Figure 3 The base 1 is provided with a first positioning groove 18 matching the size of the first positioning hole, and a first positioning pin 19 matching the size of the first positioning groove 18 is inserted in the first positioning groove 18. The base 1 is provided with a second positioning groove 20 matching the size of the second positioning hole, and a second positioning pin 21 matching the size of the second positioning groove 20 is inserted in the second positioning groove 20. Therefore, since the size of the first positioning hole on the PCB test board 3 is larger than the size of the second positioning hole, the first positioning pin 19 is inserted in the first positioning groove 18, and the second positioning pin 21 is inserted in the second positioning groove 20, so that the PCB test board 3 can only be placed on the base 1 according to the position where the first positioning pin 19 passes through the first positioning hole and the second positioning pin 21 passes through the second positioning hole, which reduces the possibility of the PCB test board 3 being placed at an incorrect angle, plays a fool-proof function, and improves the accuracy of the placement position of the PCB test board 3.

[0040] The implementation principle of the embodiment of the present application is: the lifting cylinder 6 drives the sealing pressure plate 7 to press down to cover the test seat 2 inside the sealing cavity 26. At this time, the telescopic cylinder 9 starts and drives the limit block 10 to break away from the downward pressure range of the sealing pressure plate 7. When the sealing pressure plate 7 is pressed down to contact with the positioning block 17, the first sealing ring is against the PCB test board 3, so that the test seat 2 is in a sealed state. The sensor is then tested. After the test is completed, the lifting cylinder 6 is started to drive the sealing pressure plate 7 to lift, that is, the lifting cylinder 6 is in a retracted state, and the telescopic cylinder 9 is started to drive the limit block 10 to move toward the support shaft 4, so that the support shaft 4 is located in the limit groove 13; when the operator reaches into the pressing range of the sealing pressure plate 7, takes the test seat 2 and replaces the sensor in the test seat 2, if the sealing pressure plate 7 is accidentally pressed down at this time, the limit block 10 will resist the sealing pressure plate 7 to prevent the sealing pressure plate 7 from continuing to press down. The limit block 10 limits the position of the sealing pressure plate 7, reduces the possibility of the sealing pressure plate 7 accidentally falling and clamping the operator's hand, and improves the operating safety.

[0041] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A finger-pinch prevention sensor testing device, characterized in that: The invention comprises a base (1), a test seat (2) and a PCB test board (3) mounted on the base (1); a support shaft (4) is provided on the base (1); a mounting plate (5) is provided at one end of the support shaft (4) away from the base (1); a lifting cylinder (6) is arranged on the mounting plate (5); a sealing pressure plate (7) is slidably connected to the support shaft (4); a limiting component (8) for limiting the position of the sealing pressure plate (7) is provided on the base (1); when the lifting cylinder (6) is in an upward retracted state, the limiting component (8) is located between the base (1) and the sealing pressure plate (7); when the lifting cylinder (6) is in a downward pressing state, the limiting component (8) is out of the downward pressing range of the sealing pressure plate (7).

2. The sensor testing device for preventing finger pinching according to claim 1 is characterized in that: The limit assembly (8) comprises a telescopic cylinder (9) arranged on a base (1), and a limit block (10) is provided at the output end of the telescopic cylinder (9); when the lifting cylinder (6) is in an upward retracted state, the telescopic cylinder (9) is started and the limit block (10) is located between the base (1) and the sealing pressure plate (7); when the lifting cylinder (6) is in a downward pressing state, the telescopic cylinder (9) is started and the limit block (10) is out of the downward pressing range of the sealing pressure plate (7).

3. The sensor testing device for preventing finger pinching according to claim 2, characterized in that: The output end of the telescopic cylinder (9) is provided with a connecting plate (11), the limit block (10) is provided with a mounting bolt, the connecting plate (11) is provided with a mounting groove (12) matching the mounting bolt, and the mounting bolt is threadedly connected in the mounting groove (12).

4. The sensor testing device for preventing finger pinching according to claim 2, characterized in that: A limiting groove (13) matching the supporting shaft (4) is provided on the surface of the limiting block (10) facing the supporting shaft (4); when the lifting cylinder (6) is in an upwardly retracted state, the telescopic cylinder (9) is started and the supporting shaft (4) is located in the limiting groove (13).

5. The finger-pinch protection sensor testing device according to claim 1, characterized in that: A first annular sealing groove (14) is provided on the surface of the sealing pressure plate (7) facing the base (1), the sealing cavity (26) is located at the inner edge of the first annular sealing groove (14), and a first sealing ring matching the first annular sealing groove (14) is provided in the first annular sealing groove (14).

6. The sensor testing device for preventing finger pinching according to claim 5, characterized in that: A second annular sealing groove (15) corresponding to the first annular sealing groove (14) is formed on the surface of the base (1) facing the sealing pressure plate (7); the test seat (2) is located at the inner edge of the second annular sealing groove (15); and a second sealing ring matching the second annular sealing groove (15) is provided in the second annular sealing groove (15).

7. The finger-pinch protection sensor testing device according to claim 1, characterized in that: A buffer groove (16) is provided on the surface of the sealing pressure plate (7) facing the base (1), and a buffer pad (28) matching the buffer groove (16) is provided in the buffer groove (16).

8. The finger pinch protection sensor testing device according to claim 1, characterized in that: The base (1) is provided with four positioning blocks (17) respectively matching the PCB positioning grooves (22), and the four positioning blocks (17) are respectively plugged into the four PCB positioning grooves (22) of the PCB test board (3).

9. The finger pinch protection sensor testing device according to claim 1, characterized in that: The base (1) is provided with a first positioning groove (18) matching the first positioning hole, a first positioning pin (19) matching the first positioning groove (18) is inserted into the first positioning groove (18), and the base (1) is provided with a second positioning groove (20) matching the second positioning hole, a second positioning pin (21) matching the second positioning groove (20) is inserted into the second positioning groove (20).

10. The finger-pinch protection sensor testing device according to claim 1, characterized in that: The base (1) is provided with a plurality of guide columns (23), and a plurality of threaded columns (27) are respectively provided at one end of the guide columns (23) away from the base (1). The plurality of threaded columns (27) respectively pass through the mounting plate (5), and a first mounting nut (24) and a second mounting nut (25) are respectively threadedly connected to the plurality of threaded columns (27), and the mounting plate (5) is pressed tightly between the first mounting nut (24) and the second mounting nut (25).

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