Cable pressure detection fixing device

Abstract

The utility model relates to cable fixing tool technical field, especially cable pressure resistance detection fixing device, including detection platform, still including rectangular frame and arc clamping block, the bottom side middle part fixed connection of detection platform has N type chassis, and the both sides of detection platform bottom are provided with two opposite L type translation plate, and set up between detection platform and N type chassis and have the stretching drive mechanism, and the stretching drive mechanism is used for controlling two L type translation plate relative movement, and the upper end opposite side fixed connection of two L type translation plate is away from the support pole, the utility model discloses through clamping drive mechanism and promotes four arc clamping blocks to the detection cable and carries out clamping fixed, and the detection cable is carried out multidirectional stable clamping, and stress dispersion is even, reduces the clamping damage to the detection cable, and simultaneously can adapt the clamping fixed operation of different diameter cable, utilizes the stretching drive mechanism and controls two L type translation plate relative away from each other to the straightening operation of cable is completed fast, and the stability is good.

Description

Technical Field

[0001] This utility model relates to the technical field of cable fixing tools, and in particular to a cable withstand voltage testing and fixing device. Background Technology

[0002] Cables are an important component of power and communication facilities, providing a basic path for power transmission. To ensure the safety of cable use, strict voltage withstand tests are required before cables leave the factory to ensure that the cable's withstand voltage capacity meets the usage requirements and to avoid safety accidents during actual use. The so-called cable withstand voltage test refers to applying high voltage to the cable to test whether its insulation performance is qualified, ensuring that it will not break down or leak current due to excessive voltage during long-term operation. The most commonly used testing equipment is a withstand voltage tester.

[0003] When conducting withstand voltage tests on cables, clamps are needed to fix the cables. Most existing clamps are of the fixed aperture type, which is difficult to be compatible with cables of different diameters. They are also cumbersome to operate and use, and cannot easily complete the quick assembly and fixation of cables. The stress at the clamping points is relatively concentrated and uneven, which can easily cause clamping wear damage to the cable sheath.

[0004] Therefore, in view of the problems that the existing clamps are mostly fixed-diameter type, which are difficult to be compatible with cables of different diameters, cannot easily complete the rapid assembly and fixation of cables, and cause stress concentration at the clamping point, which can easily damage the cable sheath, a cable withstand voltage testing and fixing device can be designed. Utility Model Content

[0005] To overcome the problems of existing clamps being mostly fixed-diameter type, which are difficult to be compatible with cables of different diameters, cannot easily complete the quick assembly and fixation of cables, and cause stress concentration at the clamping points, which can easily damage the cable sheath.

[0006] The technical solution of this utility model is as follows: a cable withstand voltage testing and fixing device, including a testing platform; it also includes a rectangular frame and an arc-shaped clamping block. An N-shaped base frame is fixedly connected to the center of the bottom side of the testing platform. Two opposing L-shaped sliding plates are arranged on the left and right sides of the bottom of the testing platform, and a tension driving mechanism is arranged between the testing platform and the N-shaped base frame. The tension driving mechanism is used to control the relative movement of the two L-shaped sliding plates. A support rod is fixedly connected to the upper end of the two L-shaped sliding plates on the opposite side. A disc is fixedly connected to the upper end of the support rod, and a through hole is opened in the center of the disc. The inner side of the disc has an empty slot and four through slots that communicate with the outside. Each through slot has a rectangular frame. An internal gear ring and four ring-shaped gears are rotatably arranged in the empty slot. The four gears mesh with the internal gear ring. The four gears are respectively arranged inside the four rectangular frames, and one side of the rectangular frame is provided with meshing teeth that mesh with the gears. The side of the four rectangular frames facing the center of the disc is fixedly connected to an arc-shaped clamping block. The disc is provided with a clamping drive mechanism, which is used to control the clamping and positioning of the cable by the four arc-shaped clamping blocks.

[0007] Preferably, one end of the cable to be tested is passed through the through hole of one side of the disc, and the position is adjusted appropriately. Then, the clamping drive mechanism is operated to make the connected gear 2 rotate. Gear 2 drives the internal gear ring to rotate, and the internal gear ring further drives the other three gear 2 to rotate synchronously. At this time, the four gear 2 push the meshing rectangular frame to move towards the center of the disc. The arc-shaped clamps on the four rectangular frames press against the cable to be tested and fix it. Similarly, the other end of the cable to be tested is fixed in the disc on the other side in the same way. Then, the tension drive mechanism is used to drive the two L-shaped translation plates to move away from each other. The two discs are controlled to move away from each other through the support rods, thereby straightening the cable to be tested. The withstand voltage tester is placed on the test table to complete the connection preparation before the test, and then the withstand voltage test of the cable to be tested is carried out.

[0008] Preferably, the clamping drive mechanism includes a positioning component and a limiting component. The positioning component is used to control the four arc-shaped clamping blocks to move relative to each other to a certain position, and the limiting component is used to control the position of the four arc-shaped clamping blocks to remain fixed.

[0009] Preferably, the positioning assembly includes a hollow sleeve, a connecting rod, and a knob; the hollow sleeve is fixedly connected to the upper side of the end of the disc away from the detection stage, the connecting rod is movably connected through the hollow sleeve, one end of the connecting rod is fixedly connected to one of the gears, and the other end of the connecting rod passes through the hollow sleeve and is fixedly connected to the knob.

[0010] Preferably, the limiting assembly includes an internally threaded sleeve, a threaded rod, a second knob, and a clamping seat; the upper end of the hollow sleeve is fixedly connected to an internally threaded sleeve communicating with it, the internal thread of the internally threaded sleeve is connected to a threaded rod through it, the bottom of the threaded rod is rotatably connected to a clamping seat, and the top of the threaded rod is fixedly connected to a second knob.

[0011] Preferably, an insulating pad is fixedly connected to the side of the arc-shaped clamping block facing the center of the disc, and a guide cylinder is fixedly connected to the end of the disc near the testing table.

[0012] Preferably, the stretching drive mechanism includes a gear, a motor, and a rack; the gear is rotatably connected between the testing table and the N-shaped base frame, the motor is fixedly connected to the bottom of the N-shaped base frame, the output shaft of the motor is fixedly connected to the gear, the racks are meshed on both sides of the gear, and the two racks are fixedly connected to two L-shaped translation plates respectively.

[0013] Preferably, the bottom of the testing platform is fixedly connected to two limit boxes, and two racks are movably arranged inside the two limit boxes respectively. An opening is provided on one side of the two limit boxes for the L-shaped translation plate to move.

[0014] Preferably, the bottom of the testing platform is also fixedly connected to two limiting frames, and two L-shaped sliding plates are respectively movably set inside the two limiting frames.

[0015] The beneficial effects of this utility model are: This device uses a disc, internal gear ring, gear II, rectangular frame, and arc-shaped clamping blocks. A clamping drive mechanism pushes four arc-shaped clamping blocks to clamp and fix the cable under test, providing stable clamping from multiple directions. Stress is evenly distributed, reducing clamping damage to the cable. It can also accommodate clamping and fixing cables of different diameters. A tension drive mechanism controls two L-shaped translation plates to move away from each other, quickly straightening the cable with good stability. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall three-dimensional structure of this utility model. Figure One ; Figure 2 The diagram shown is a schematic representation of the overall three-dimensional structure of this utility model. Figure Two ; Figure 3 The diagram shown is a schematic representation of the distribution structure of the tension drive mechanism of this utility model. Figure 4 The diagram shown is a three-dimensional structural schematic of the disc of this utility model; Figure 5 The diagram shown illustrates the disassembly structure of the disc according to this utility model. Figure One ; Figure 6 The diagram shown illustrates the disassembly structure of the disc according to this utility model. Figure Two .

[0017] Explanation of reference numerals in the attached drawings: 1. Testing table; 2. N-shaped base frame; 3. L-shaped sliding plate; 401. Gear 1; 402. Motor; 403. Rack; 5. Support rod; 6. Disc; 7. Through hole; 801. Hollow sleeve; 802. Connecting rod; 803. Knob 1; 804. Internal threaded sleeve; 805. Threaded rod; 806. Knob 2; 807. Pressing seat; 9. Empty slot; 10. Through slot; 11. Internal gear ring; 12. Gear 2; 13. Rectangular frame; 14. Meshing teeth; 15. Arc-shaped clamping block; 16. Insulating clamp; 17. Guide cylinder; 18. Limiting box; 19. Limiting frame. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Please see Figures 1-6This utility model provides an embodiment of a cable withstand voltage testing and fixing device, including a testing platform 1; it also includes a rectangular frame 13 and an arc-shaped clamping block 15. An N-shaped base frame 2 is fixedly connected to the center of the bottom side of the testing platform 1. Two opposing L-shaped sliding plates 3 are arranged on the left and right sides of the bottom of the testing platform 1, and a tension driving mechanism is arranged between the testing platform 1 and the N-shaped base frame 2. The tension driving mechanism is used to control the relative movement of the two L-shaped sliding plates 3. A support rod 5 is fixedly connected to the upper end of the two L-shaped sliding plates 3 on the side that is relatively far apart. A disc 6 is fixedly connected to the upper end of the device. A through hole 7 is opened in the middle of the disc 6. A slot 9 and four through slots 10 communicating with the outside are opened on the inner side of the disc 6. A rectangular frame 13 is set in each through slot 10. An internal gear ring 11 and four ring-shaped gears 12 are rotatably arranged in the slot 9. The four gears 12 mesh with the internal gear ring 11. The four gears 12 are respectively set inside the four rectangular frames 13, and one side of the rectangular frame 13 is provided with meshing teeth 14 that mesh with the gears 12. The four rectangular frames 13 face towards An arc-shaped clamping block 15 is fixedly connected to one side of the center of the disc 6. A clamping drive mechanism is provided on the disc 6. The clamping drive mechanism is used to control the clamping and positioning of the cable by the four arc-shaped clamping blocks 15. One end of the cable to be tested is passed through the through hole 7 of one side of the disc 6. The appropriate position is adjusted, and then the clamping drive mechanism is operated to make the connected gear 12 rotate. The gear 12 drives the internal gear ring 11 to rotate. The internal gear ring 11 further drives the other three gears 12 to rotate synchronously. At this time, the four gears 12 push the meshing rectangular frame 13 to move towards the center of the disc 6. The arc-shaped clamping blocks 15 on the four rectangular frames 13 press against the cable to be tested and fix it. Similarly, the other end of the cable to be tested is fixed in the disc 6 on the other side in the same way. Then, the tension drive mechanism is used to drive the two L-shaped translation plates 3 to move away from each other. The two discs 6 are controlled to move away from each other through the support rods 5, thereby straightening the cable to be tested. The withstand voltage tester is placed on the test table 1 to complete the connection preparation before the test, and then the withstand voltage test of the cable to be tested is carried out.

[0020] Please see Figures 4-6In this embodiment, the clamping drive mechanism includes a positioning component and a limiting component. The positioning component is used to control the relative movement of the four arc-shaped clamping blocks 15 to a certain position, and the limiting component is used to control the position of the four arc-shaped clamping blocks 15 to be fixed. The clamping drive mechanism is divided into two parts: the positioning component and the limiting component. The positioning component is specifically used to adjust the position of the four arc-shaped clamping blocks 15 to clamp the cable to be tested, while the limiting component is used to control the position point to be fixed, to avoid loosening of the clamping, and to improve the clamping stability. The positioning component includes a hollow sleeve 801, a connecting rod 802, and a knob 803. A hollow sleeve 801 is fixedly connected to the upper side of the end of the disc 6 away from the testing table 1. A connecting rod 802 is movably connected through the hollow sleeve 801. One end of the connecting rod 802 is fixedly connected to one of the gears 12, and the other end of the connecting rod 802 extends out of the hollow sleeve 801 and is fixedly connected to a knob 803. Rotating the knob 803 drives the connecting rod 801. 2. Rotation: Connecting rod 802 drives corresponding gear 12 to rotate. The limiting assembly includes an internal threaded sleeve 804, a threaded rod 805, a knob 806, and a clamping seat 807. The upper end of the hollow sleeve 801 is fixedly connected to the internal threaded sleeve 804, which communicates with it. The internal thread of the internal threaded sleeve 804 is connected to the threaded rod 805. The bottom of the threaded rod 805 is rotatably connected to the clamping seat 807. The top of the threaded rod 805 is fixedly connected to the knob 806. Rotating the knob 806 drives the threaded rod 805 to rotate. The threaded rod 805 pushes the clamping seat 807 to move downward, pressing it against the surface of the connecting rod 802 to restrict its rotation. An insulating pad 16 is fixedly connected to the side of the arc-shaped clamping block 15 facing the center of the disc 6. A guide cylinder 17 is fixedly connected to the end of the disc 6 near the testing table 1. The insulating pad 16 can reduce the clamping damage to the cable under test and has a good insulation effect, preventing leakage current from the cable under test from conducting current to other components.

[0021] Please see Figures 2-3In this embodiment, the stretching drive mechanism includes a gear 401, a motor 402, and a rack 403. The gear 401 is rotatably connected between the detection platform 1 and the N-shaped base 2. The motor 402 is fixedly connected to the bottom of the N-shaped base 2. The output shaft of the motor 402 is fixedly connected to the gear 401. Racks 403 are meshed on both sides of the gear 401. The two racks 403 are fixedly connected to two L-shaped translation plates 3 respectively. Starting the motor 402 drives the gear 401 to rotate, which in turn drives the two racks 403 to move relative to each other, thereby pushing the two racks 403... Two L-shaped translation plates 3 move relative to each other. Two limit boxes 18 are fixedly connected to the bottom of the testing table 1. Two racks 403 are respectively movably disposed inside the two limit boxes 18. An opening for the L-shaped translation plates 3 to move is opened on one side of the two limit boxes 18. The limit boxes 18 are used to support and guide the movement of the racks 403 and maintain the stability of their movement. Two limit frames 19 are also fixedly connected to the bottom of the testing table 1. The two L-shaped translation plates 3 are respectively movably disposed inside the two limit frames 19. The limit frames 19 support and guide the movement of the L-shaped translation plates 3 and maintain the stability of their movement.

[0022] During operation, one end of the cable to be tested is passed through the through hole 7 of one side of the disc 6. After adjusting to a suitable position, the clamping drive mechanism is operated. Rotating knob 803 drives the connecting rod 802 to rotate. The connecting rod 802 drives the corresponding gear 12 to rotate. Gear 12 drives the internal gear ring 11 to rotate. The internal gear ring 11 further drives the other three gears 12 to rotate synchronously. At this time, the four gears 12 push the meshing rectangular frame 13 to move towards the center of the disc 6. The arc-shaped clamps 15 on the four rectangular frames 13 are pressed against the cable to be tested through the insulating clamping pads 16. Then, rotating knob 806 drives the threaded rod 805 to rotate. The threaded rod 805 pushes the clamping seat 80 7. Move downwards and press against the surface of the connecting rod 802 to restrict its rotation, thus completing the fixation of the cable to be tested. Similarly, the other end of the cable to be tested is fixed in the same way in the disc 6 on the other side. Then, using the tension drive mechanism, start the motor 402 to drive the gear 401 to rotate. The gear 401 drives the two racks 403 to move away from each other, thereby pushing the two L-shaped translation plates 3 to move away from each other. Through the support rods 5, control the two discs 6 to move away from each other, thereby straightening the cable to be tested. Place the withstand voltage tester on the test table 1 to complete the connection preparation before the test, and then carry out the subsequent withstand voltage test of the cable to be tested.

[0023] Through the above steps, the device is equipped with a disc 6, an internal gear ring 11, a gear 2 12, a rectangular frame 13, and arc-shaped clamping blocks 15. The clamping drive mechanism pushes the four arc-shaped clamping blocks 15 to clamp and fix the cable to be tested, providing stable clamping of the cable from multiple directions, distributing stress evenly, reducing clamping damage to the cable to be tested, and adapting to clamping and fixing operations of cables with different diameters. The tension drive mechanism controls the two L-shaped translation plates 3 to move away from each other, thereby quickly completing the straightening operation of the cable. It has good stability, which solves the problems of existing clamps that are mostly fixed-diameter type, which are difficult to be compatible with cables of different diameters, cannot easily complete the rapid assembly and fixing of cables, and have stress concentration at the clamping points, which can easily damage the cable sheath.

Claims

1. A cable withstand voltage testing fixing device, comprising a testing table (1); characterized in that: It also includes a rectangular frame (13) and an arc-shaped clamp (15). An N-shaped base frame (2) is fixedly connected to the middle of the bottom side of the testing platform (1). Two opposing L-shaped translation plates (3) are provided on the left and right sides of the bottom of the testing platform (1). A tension drive mechanism is provided between the testing platform (1) and the N-shaped base frame (2). The tension drive mechanism is used to control the relative movement of the two L-shaped translation plates (3). A support rod (5) is fixedly connected to the side of the upper end of the two L-shaped translation plates (3) that is relatively far apart. A disc (6) is fixedly connected to the upper end of the support rod (5). A through hole (7) is opened in the middle of the disc (6). A slot (9) and four through slots communicating with the outside are opened on the inner side of the disc (6). 10), each through slot (10) is provided with a rectangular frame (13), and an internal gear ring (11) and four ring-shaped gears (12) are rotatably provided in the empty slot (9). The four gears (12) mesh with the internal gear ring (11). The four gears (12) are respectively provided on the inner side of the four rectangular frames (13), and one side of the rectangular frame (13) is provided with meshing teeth (14) that mesh with the gears (12). The four rectangular frames (13) are fixedly connected to the side facing the center of the disc (6) with arc-shaped clamping blocks (15). The disc (6) is provided with a clamping drive mechanism, which is used to control the clamping and positioning of the cable by the four arc-shaped clamping blocks (15).

2. The cable withstand voltage testing and fixing device according to claim 1, characterized in that: The clamping drive mechanism includes a positioning component and a limiting component. The positioning component is used to control the four arc-shaped clamping blocks (15) to move relative to each other to a certain position, and the limiting component is used to control the position of the four arc-shaped clamping blocks (15) to remain fixed.

3. The cable withstand voltage testing and fixing device according to claim 1, characterized in that: The positioning assembly includes a hollow sleeve (801), a connecting rod (802), and a knob (803); the upper side of the disc (6) away from the detection table (1) is fixedly connected to the hollow sleeve (801), the connecting rod (802) is movably connected through the hollow sleeve (801), one end of the connecting rod (802) is fixedly connected to one of the gears (12), and the other end of the connecting rod (802) passes through the hollow sleeve (801) and is fixedly connected to the knob (803).

4. The cable withstand voltage testing and fixing device according to claim 3, characterized in that: The limiting assembly includes an internally threaded sleeve (804), a threaded rod (805), a second knob (806), and a clamping seat (807); the upper end of the hollow sleeve (801) is fixedly connected to the internally threaded sleeve (804) communicating with it, the internal thread of the internally threaded sleeve (804) is connected to the threaded rod (805), the bottom of the threaded rod (805) is rotatably connected to the clamping seat (807), and the top of the threaded rod (805) is fixedly connected to the second knob (806).

5. The cable withstand voltage testing and fixing device according to claim 1, characterized in that: An insulating pad (16) is fixedly connected to the side of the arc-shaped clamp (15) facing the center of the disc (6), and a guide cylinder (17) is fixedly connected to the end of the disc (6) near the test table (1).

6. The cable withstand voltage testing and fixing device according to claim 1, characterized in that: The stretching drive mechanism includes a gear (401), a motor (402), and a rack (403); the gear (401) is rotatably connected between the testing table (1) and the N-shaped base frame (2), the motor (402) is fixedly connected to the bottom of the N-shaped base frame (2), the output shaft of the motor (402) is fixedly connected to the gear (401), the rack (403) is meshed on both sides of the gear (401), and the two racks (403) are fixedly connected to the two L-shaped translation plates (3) respectively.

7. The cable withstand voltage testing and fixing device according to claim 6, characterized in that: The bottom of the testing platform (1) is fixedly connected to two limit boxes (18), and two racks (403) are respectively movably set inside the two limit boxes (18), and an opening is provided on one side of the two limit boxes (18) for the L-shaped translation plate (3) to move.

8. The cable withstand voltage testing and fixing device according to claim 1, characterized in that: Two limit frames (19) are fixedly connected to the bottom of the testing platform (1), and two L-shaped sliding plates (3) are respectively movably set inside the two limit frames (19).

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