Shoe insulating property detection device

Abstract

The invention belongs to the technical field of insulating property detection of safety shoes, and particularly relates to a shoe insulating property detection device. Comprising a detection table, a conveying belt is arranged at the top end of the detection table, and a plurality of conducting strips are fixedly connected to the surface of the conveying belt; a pair of supporting frames are installed on the two sides of the detection table, and connecting pieces are fixedly connected to the top ends of the supporting frames; a cross rod is mounted between the pair of connecting pieces; according to the shoe insulating property detection device provided by the invention, the strip-shaped air bag is arranged; when the safety shoe is used, the strip-shaped air bag expands in the safety shoe, the surface of the strip-shaped air bag is covered with a layer of conductive film, and the strip-shaped air bag extrudes the conductive film to make full contact with the interior of the safety shoe when expanding. The first conductive head is connected with the power supply, the detection meter and the conductive sheet through a loose wire; therefore, a loop can be formed by matching with the conducting strip, the conducting film and the safety shoes; the conductive film is fully contacted with the interior of the safety shoe, so that the insulating properties of different positions in the safety shoe are detected; and the detection precision is optimized.

Description

Technical Field

[0001] The present invention belongs to the technical field of detecting the insulation performance of labor protection shoes, and specifically relates to a device for detecting the insulation performance of shoes. Background Art

[0002] Labor protection shoes are shoes that provide safety protection for the feet. There are many types of them. Among them, the function of insulating labor protection shoes is to insulate the human body from the ground, prevent current from passing through the human body and the ground to form a circuit, and cause electric shock to the human body, reducing the risk of electric shock to the minimum level. In order to ensure the insulation performance of labor protection shoes, it is necessary to conduct insulation performance tests after the production of labor protection shoes.

[0003] When detecting the insulation performance of labor protection shoes at present, it is necessary to use a resistance tester to measure the resistance value of the labor protection shoes. The specific operation process is to put the conductive block into the inside of the labor protection shoes and the sole, and then energize to observe the relevant resistance value. However, the conductive block cannot cover the entire area inside the labor protection shoes, such as the deep position inside the labor protection shoes. There may be different insulation performances at different positions inside the labor protection shoes during detection. Therefore, the accuracy of the existing detection still needs to be further optimized.

[0004] Therefore, the present invention provides a device for detecting the insulation performance of shoes. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A device for detecting the insulation performance of shoes according to the present invention includes a detection table, a conveyor belt is arranged at the top of the detection table, and a plurality of conductive plate pieces are fixedly connected to the surface of the conveyor belt; a pair of support frames are installed on both sides of the detection table, and a connecting piece is fixedly connected to the top of the support frame; a cross bar is installed between a pair of the connecting pieces, a receiving piece is fixedly connected to the surface of the cross bar, a first hydraulic cylinder is fixedly connected to the bottom end of the receiving piece, a receiving block is fixedly connected to the output end of the first hydraulic cylinder, and a through hole is formed in the side surface of the receiving block; a strip-shaped airbag is inserted into the through hole, an installation plate is fixedly connected to the surface of the cross bar and on one side of the receiving piece, an air inflation pump is fixedly connected to the side surface of the installation plate, an air inflation pipe is fixedly connected to the output end of the air inflation pump, and the end of the air inflation pipe is communicated with the strip-shaped airbag; A support is fixedly connected to the top of the detection table, a second hydraulic cylinder is fixedly connected to the top of the support, a support bar is fixedly connected to the output end of the second hydraulic cylinder, a first conductive head is fixedly connected to the end of the support bar, a third hydraulic cylinder is fixedly connected to the top of the support and on one side of the second hydraulic cylinder, a conductive sheet is fixedly connected to the output end of the third hydraulic cylinder, a second conductive head is fixedly connected to the end of the conductive sheet, and a power supply and a detection meter are fixedly connected to the top of the support.

[0007] Preferably, a plurality of limiting springs are fixedly connected inside the strip-shaped airbag, and the top and bottom ends of the limiting springs are fixedly connected to the upper and lower inner walls of the strip-shaped airbag respectively.

[0008] Preferably, the connecting member comprises a motor, the output end of the motor is fixedly connected with a pair of guide rods, the end of the cross bar is provided with a pair of plug-in slots adapted to the guide rods; the ends of the guide rods are inserted into the plug-in slots.

[0009] Preferably, a pressure relief valve is fixedly connected to the side surface of the mounting plate, and a connecting pipe is provided at the input end of the pressure relief valve and is connected to the inflation pipe.

[0010] Preferably, a positioning frame is fixedly connected to the top of the testing platform and located on one side of the cross bar, and a restraining airbag is installed on the surface of the positioning frame. During testing, the restraining airbag is located directly above the upper of the safety shoe.

[0011] Preferably, a plurality of magnetic blocks are fixedly connected to the inner bottom wall of the strip-shaped airbag; and an electromagnet is fixedly connected to the top end of the positioning frame.

[0012] Preferably, a pair of baffles are fixedly connected to the surface of the crossbar, a linkage frame is inserted between the pair of baffles, a fourth hydraulic cylinder is laterally fixedly connected to the side of the support frame, and the output end of the fourth hydraulic cylinder is fixedly connected to an end of the linkage frame away from the baffle.

[0013] Preferably, a pair of fixing frames are fixedly connected to the top of the detection platform and on both sides of the feeding end of the conveyor belt, and a receiving plate is fixedly connected to the opposite sides of the pair of fixing frames; the receiving plate is located at the top of the conductive plate at the feeding position of the conveyor belt; the distance between the pair of receiving plates is the same as the width of the safety shoes to be tested.

[0014] Preferably, one end of the receiving plate away from the strip-shaped airbag is arranged in an inclined shape away from each other.

[0015] Preferably, the surface of the receiving plate is polished.

[0016] The beneficial effects of the present invention are as follows: 1. The device for detecting the insulation performance of shoes described in the present invention is provided with a strip-shaped airbag; when in use, the strip-shaped airbag expands inside the safety shoe, and the surface of the strip-shaped airbag is covered with a layer of conductive film, which will squeeze the conductive film to fully contact the inside of the safety shoe when the strip-shaped airbag expands; the first conductive head is connected to the power supply, the detection meter and the conductive sheet through loose wires; therefore, a loop can be formed by combining the conductive plate, the conductive film and the safety shoe; the insulation performance of the safety shoe can be displayed by the detection meter; and because the conductive film fully contacts the inside of the safety shoe, the insulation performance of different positions in the safety shoe can be detected, thereby optimizing the detection accuracy.

[0017] 2. The shoe insulation performance detection device described in the present invention is provided with a limiting spring; when the strip airbag expands, the limiting spring inside the strip airbag will limit the lateral expansion of the strip airbag, driving the strip airbag to expand toward the deep direction of the safety shoe, which is beneficial for the conductive film covering the outside of the strip airbag to fully contact with the inside of the safety shoe, and is beneficial for improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 is a stereogram of the present invention; Figure 2 It is a structural schematic diagram of the detection table of the present invention; Figure 3 It is a schematic diagram of the structure on the crossbar of the present invention; Figure 4 It is a schematic diagram of the connection structure of the receiving block of the present invention; Figure 5 is a schematic cross-sectional view of a strip-shaped air bag of the present invention; Figure 6 is a schematic diagram of the end of the crossbar of the present invention; Figure 7 It is a schematic diagram of the structure on the positioning frame of the present invention; Figure 8 is a schematic diagram of the top structure of the stent of the present invention; Figure 9 It is a schematic diagram of the structure below the bracket of the present invention; Figure 10 Schematic diagram of the conductive sheet of the present invention.

[0020] In the figure: 1. test bench; 11. conveyor belt; 12. conductive plate; 2. support frame; 21. cross bar; 22. receiving member; 23. first hydraulic cylinder; 24. receiving block; 25. strip air bag; 251. limiting spring; 252. magnetic block; 3. mounting plate; 31. air pump; 32. air filling pipe; 33. connecting pipe; 34. pressure relief valve; 4. motor; 41. guide rod; 5. baffle; 51. linkage frame; 52. fourth hydraulic cylinder; 6. bracket; 61. second hydraulic cylinder; 62. support bar; 63. first conductive head; 64. power supply; 65. test table; 66. third hydraulic cylinder; 67. conductive sheet; 68. second conductive head; 7. positioning frame; 71. restraining air bag; 72. electromagnet; 8. fixing frame; 81. guide plate. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figures 1 to 2As shown in the figure, a shoe insulation performance detection device according to an embodiment of the present invention includes a detection table 1. A conveyor belt 11 is arranged at the top of the detection table 1, and a plurality of conductive plate pieces 12 are fixedly connected to the surface of the conveyor belt 11. A pair of support frames 2 are installed on both sides of the detection table 1, and a connecting member is fixedly connected to the top of the support frame 2. A cross bar 21 is installed between a pair of connecting members, and a receiving member 22 is fixedly connected to the surface of the cross bar 21. A first hydraulic cylinder 23 is fixedly connected to the bottom end of the receiving member 22, and an output end of the first hydraulic cylinder 23 is fixedly connected to a receiving block 24. A through hole is formed in the side surface of the receiving block 24. A strip-shaped air bag 25 is inserted into the through hole. An installation plate 3 is fixedly connected to the surface of the cross bar 21 and on one side of the receiving member 22. An air inflation pump 31 is fixedly connected to the side surface of the installation plate 3, and an output end of the air inflation pump 31 is fixedly connected to an air inflation pipe 32. An end of the air inflation pipe 32 is communicated with the strip-shaped air bag 25; A support 6 is fixedly connected to the top of the detection table 1. A second hydraulic cylinder 61 is fixedly connected to the top of the support 6, and an output end of the second hydraulic cylinder 61 is fixedly connected to a support bar 62. A first conductive head 63 is fixedly connected to an end of the support bar 62. A third hydraulic cylinder 66 is fixedly connected to the top of the support 6 and on one side of the second hydraulic cylinder 61. An output end of the third hydraulic cylinder 66 is fixedly connected to a conductive sheet 67, and a second conductive head 68 is fixedly connected to an end of the conductive sheet 67. A power supply 64 and a detection meter 65 are fixedly connected to the top of the support 6; Currently, the process of detecting the insulation performance of labor protection shoes is to place a conductive block inside the labor protection shoes and on the sole, and then energize to observe the relevant resistance value. However, the conductive block cannot cover the entire area inside the labor protection shoes, such as the deep positions inside the labor protection shoes. There may be differences in the insulation performance at different positions inside the labor protection shoes during detection. Therefore, the accuracy of the existing detection still needs to be further optimized. To solve the above problems, the embodiment of the present invention sets up multiple structures such as a strip-shaped airbag 25. The specific use process is as follows. When in use, the labor protection shoes to be detected are placed on the conductive plate 12 on the conveyor belt 11 by a manipulator or a worker, and the toe and tip of the labor protection shoes are both pointed to the end of the conveyor belt 11. The conductive plate 12 is made of a flexible conductive material. When the conveyor belt 11 conveys the labor protection shoes to below the cross bar 21, it stops. At this time, the shoe mouth of the labor protection shoes is directly below the strip-shaped airbag 25. Then, the first hydraulic cylinder 23 is started, and the output end of the first hydraulic cylinder 23 drives the receiving block 24 to move downward and into the shoe mouth to contact the inside of the labor protection shoes. The strip-shaped airbag 25 is synchronously brought into the labor protection shoes. Then, the air pump 31 is started to inflate the strip-shaped airbag 25 through the air charging pipe 32, so that the strip-shaped airbag 25 expands inside the labor protection shoes. When the strip-shaped airbag 25 expands, it will extend into the deep part of the labor protection shoes. Since a conductive film (not shown in the specification drawings) is covered on the surface of the strip-shaped airbag 25 and the conductive film is in a relaxed state, the conductive film will not be broken or torn when the strip-shaped airbag 25 expands. And when the strip-shaped airbag 25 expands, it will squeeze the conductive film to fully contact the inside of the labor protection shoes. At this time, the output end of the third hydraulic cylinder 66 drives the conductive sheet 67 to move downward, and the conductive sheet 67 drives the second conductive head 68 at the end to move downward and stops when contacting the conductive film at the shoe mouth. At the same time, the second hydraulic cylinder 61 is started, and the output end of the second hydraulic cylinder 61 drives the support bar 62 to move downward, and the support bar 62 drives the first conductive head 63 at the end to move downward and stops when the bottom end of the first conductive head 63 contacts the conductive plate 12. It should be noted that the first conductive head 63, the power supply 64, the detection meter 65, and the conductive sheet 67 are connected by a relaxed wire. Therefore, in cooperation with the conductive plate 12, the conductive film, and the labor protection shoes, a circuit can be formed. The insulation performance of the labor protection shoes can be displayed by the detection meter 65. And because the conductive film fully contacts the inside of the labor protection shoes, the insulation performance at different positions inside the labor protection shoes can be detected, optimizing the detection accuracy.

[0023] A plurality of limiting springs 251 are fixedly connected inside the strip-shaped airbag 25. The top and bottom ends of the limiting springs 251 are respectively fixedly connected to the upper and lower inner walls of the strip-shaped airbag 25. When the strip-shaped airbag 25 expands, the limiting springs 251 inside the strip-shaped airbag 25 will limit the lateral expansion of the strip-shaped airbag 25 and drive the strip-shaped airbag 25 to expand in the direction of the deep part of the labor protection shoes, which is beneficial to the conductive film covered outside the strip-shaped airbag 25 to fully contact the inside of the labor protection shoes and is beneficial to improving the detection accuracy.

[0024] The connecting piece includes a motor 4. A pair of guide rods 41 are fixedly connected to the output end of the motor 4. A pair of insertion slots adapted to the guide rods 41 are provided at the end of the cross bar 21. The ends of the guide rods 41 are inserted into the insertion slots. When moving the strip-shaped airbag 25 into the labor protection shoes, due to the support of the limiting spring 251, the overall strip-shaped airbag 25 will have a certain shape. And the size of the shoe mouth of the labor protection shoes is limited. When controlling the movement of the strip-shaped airbag 25 into the labor protection shoes, the motor 4 is started. The motor 4 drives a pair of guide rods 41 to rotate. The pair of guide rods 41 drive the cross bar 21 to rotate. The cross bar 21 drives the receiving piece 22 to rotate. The receiving piece 22 drives the first hydraulic cylinder 23 to rotate. The first hydraulic cylinder 23 drives the strip-shaped airbag 25 in the side through hole of the receiving block 24 to deflect upward. Stop when the bottom end of the strip-shaped airbag 25 is aligned with the shoe mouth. Then control the strip-shaped airbag 25 to deflect back to its original position and at the same time drive the receiving block 24 to move downward through the first hydraulic cylinder 23. During the process of the strip-shaped airbag 25 entering the labor protection shoes, the end of the strip-shaped airbag 25 will be inserted into the labor protection shoes obliquely, and then fully inserted into the deep part of the labor protection shoes. It is beneficial for the strip-shaped airbag 25 to fully contact the inside of the labor protection shoes later.

[0025] A pressure relief valve 34 is fixedly connected to the side of the mounting plate 3. The input end of the pressure relief valve 34 is connected to the inflation pipe 32 through a connecting pipe 33. When inflating the strip-shaped airbag 25, since the pressure relief valve 34 is connected to the inflation pipe 32 through the connecting pipe 33. The inflation pipe 32 is connected to the pressure relief valve 34. Therefore, when the air pressure inside the strip-shaped airbag 25 reaches a certain magnitude, the pressure relief valve 34 will automatically relieve pressure. Ensure that the strip-shaped airbag 25 will not be over-inflated and damage the labor protection shoes by stretching.

[0026] A positioning frame 7 is fixedly connected to the top of the detection table 1 and on one side of the cross bar 21. A restraint airbag 71 is installed on the surface of the positioning frame 7. During detection, the restraint airbag 71 is located directly above the upper surface of the labor protection shoes. The restraint airbag 71 is externally connected to an air pump. When detecting the labor protection shoes, the air pump externally connected to the restraint airbag 71 is started. The restraint airbag 71 is inflated and expanded, squeezing the upper surface of the labor protection shoes below, thereby offsetting the extrusion force of the strip-shaped airbag 25 on the upper surface of the labor protection shoes from the inside to the outside. While protecting the labor protection shoes, the air pressure inside the strip-shaped airbag 25 can be appropriately increased to simulate the situation of a person wearing shoes, and the detection accuracy can be improved by further enhancing the authenticity of the detection.

[0027] A plurality of magnetic blocks 252 are fixedly connected to the inner bottom wall of the strip-shaped airbag 25. An electromagnet 72 is fixedly connected to the top of the positioning frame 7. During detection, the electromagnet 72 is energized. The electromagnet 72 generates a magnetic repulsive force on the magnetic blocks 252, causing the magnetic blocks 252 to further squeeze the inside of the labor protection shoes through the strip-shaped airbag 25, further simulating the real situation of a person wearing shoes. Improve the detection accuracy.

[0028] A pair of baffles 5 are fixedly connected to the surface of the crossbar 21, and a linkage frame 51 is inserted between the pair of baffles 5. A fourth hydraulic cylinder 52 is laterally fixedly connected to the side of the support frame 2, and the output end of the fourth hydraulic cylinder 52 is fixedly connected to the end of the linkage frame 51 away from the baffle 5. When unqualified labor protection shoes are detected, the fourth hydraulic cylinder 52 is started, driving the linkage frame 51 to move, and the top of the linkage frame 51 drives the baffle 5 to move, and the baffle 5 drives the crossbar 21 to move laterally. The guide rod 41 inserted into the plug-in groove at the end of the crossbar 21 is the crossbar 2 1 provides stable support for movement; specifically, the guide rod 41 moves in the plug-in slot, and the cross bar 21 is supported and will not be interfered with when moving; so that the cross bar 21 can drive the receiving member 22 to move stably; the receiving member 22 drives the first hydraulic cylinder 23 to move synchronously, and the first hydraulic cylinder 23 drives the receiving block 24 to move synchronously, and the receiving block 24 drives the unqualified labor protection shoes to move and detach from the conductive plate 12 through the strip airbag 25; thereby completing the automatic sorting of labor protection shoes during detection; which is conducive to improving detection efficiency.

[0029] A pair of fixing frames 8 are fixedly connected to the top of the detection table 1 and on both sides of the feeding end of the conveyor belt 11, and a guide plate 81 is fixedly connected to the opposite side of the pair of fixing frames 8; the guide plate 81 is located at the top of the conductive plate 12 at the feeding position of the conveyor belt 11; the distance between the pair of guide plates 81 is the same as the width of the labor protection shoes to be tested; when the labor protection shoes are placed on the top of the conductive plate 12 on the feeding end of the conveyor belt 11, the pair of guide plates 81 will limit the placement position of the labor protection shoes to ensure that the placement position of the labor protection shoes is accurate; it is beneficial to subsequent detection; the end of the guide plate 81 away from the strip airbag 25 is set to be inclined away from each other; when the labor protection shoes are connected and fed through the conveyor, the inclined structure at the end of the guide plate 81 can guide the labor protection shoes to enter between the pair of guide plates 81; improve the guidance accuracy; the surface of the guide plate 81 is polished; reduce the friction braking force of the guide plate 81 on the labor protection shoes; ensure smooth movement of the labor protection shoes.

[0030] It should be noted that the driving device and the detection meter 65 in the present invention are connected to a microcomputer and are controlled by the microcomputer.

Claims

1. A shoe insulation performance detection device, characterized in that: The invention comprises a detection platform (1), wherein a conveyor belt (11) is arranged at the top of the detection platform (1), and a plurality of conductive plates (12) are fixedly connected to the surface of the conveyor belt (11); a pair of support frames (2) are installed on both sides of the detection platform (1), and a connecting member is fixedly connected to the top of the support frame (2); a cross bar (21) is installed between the pair of connecting members, and a receiving member (22) is fixedly connected to the surface of the cross bar (21), and a first hydraulic cylinder (23) is fixedly connected to the bottom end of the receiving member (22). The output end of the first hydraulic cylinder (23) is fixedly connected to a receiving block (24), and a through hole is formed on the side of the receiving block (24); a strip-shaped air bag (25) is inserted into the through hole; a mounting plate (3) is fixedly connected to the surface of the cross bar (21) and located on one side of the receiving member (22); an air pump (31) is fixedly connected to the side of the mounting plate (3); an air pump (31) is fixedly connected to the output end of the air pump (31); and an air pipe (32) is connected to the end of the air pipe (32) and is in communication with the strip-shaped air bag (25); The top of the detection platform (1) is fixedly connected to a bracket (6), the top of the bracket (6) is fixedly connected to a second hydraulic cylinder (61), the output end of the second hydraulic cylinder (61) is fixedly connected to a support bar (62), the end of the support bar (62) is fixedly connected to a first conductive head (63), the top of the bracket (6) and located on one side of the second hydraulic cylinder (61) is fixedly connected to a third hydraulic cylinder (66), the output end of the third hydraulic cylinder (66) is fixedly connected to a conductive sheet (67), the end of the conductive sheet (67) is fixedly connected to a second conductive head (68), and the top of the bracket (6) is fixedly connected to a power source (64) and a detection meter (65).

2. A shoe insulation performance detection device according to claim 1, characterized in that: A plurality of limiting springs (251) are fixedly connected inside the strip-shaped airbag (25), and the top and bottom ends of the limiting springs (251) are respectively fixedly connected to the upper and lower inner walls of the strip-shaped airbag (25).

3. A shoe insulation performance detection device according to claim 2, characterized in that: The connecting member comprises a motor (4), the output end of the motor (4) being fixedly connected to a pair of guide rods (41), the end of the cross bar (21) being provided with a pair of plug-in slots adapted to the guide rods (41); the ends of the guide rods (41) being inserted into the plug-in slots.

4. A shoe insulation performance detection device according to claim 1, characterized in that: A pressure relief valve (34) is fixedly connected to the side of the mounting plate (3), and an input end of the pressure relief valve (34) is connected to the inflation pipe (32) and is provided with a connecting pipe (33).

5. A shoe insulation performance detection device according to claim 4, characterized in that: A positioning frame (7) is fixedly connected to the top of the testing platform (1) and located on one side of the crossbar (21). A restraining airbag (71) is installed on the surface of the positioning frame (7). During testing, the restraining airbag (71) is located directly above the upper surface of the safety shoe.

6. A shoe insulation performance detection device according to claim 5, characterized in that: A plurality of magnetic blocks (252) are fixedly connected to the inner bottom wall of the strip-shaped airbag (25); and an electromagnet (72) is fixedly connected to the top end of the positioning frame (7).

7. A shoe insulation performance detection device according to claim 3, characterized in that: A pair of baffles (5) are fixedly connected to the surface of the crossbar (21), a linkage frame (51) is inserted between the pair of baffles (5), a fourth hydraulic cylinder (52) is laterally fixedly connected to the side of the support frame (2), and an output end of the fourth hydraulic cylinder (52) is fixedly connected to an end of the linkage frame (51) away from the baffle (5).

8. A shoe insulation performance detection device according to claim 1, characterized in that: A pair of fixing frames (8) are fixedly connected to the top of the testing platform (1) and located on both sides of the feeding end of the conveyor belt (11); a guide plate (81) is fixedly connected to opposite sides of the pair of fixing frames (8); the guide plate (81) is located at the top of the conductive plate (12) at the feeding position of the conveyor belt (11); and the distance between the pair of guide plates (81) is the same as the width of the labor protection shoes to be tested.

9. A shoe insulation performance detection device according to claim 8, characterized in that: One end of the receiving plate (81) away from the strip-shaped airbag (25) is arranged in an inclined shape away from each other.

10. A shoe insulation performance detection device according to claim 9, characterized in that: The surface of the receiving plate (81) is polished.

Images