A resistance constant temperature detection device based on cable testing

Abstract

The present invention relates to the technical field of resistance constant temperature detection, and discloses a resistance constant temperature detection device based on cable testing, which includes a constant temperature bath, a heating pipe arranged in the constant temperature bath, and water filled in the constant temperature bath. The device further includes a detection unit arranged in the constant temperature bath; the detection unit includes two lifting components symmetrically arranged on the inner wall of the constant temperature bath, and each lifting component includes two lifting assemblies arranged on the inner wall of the constant temperature bath, a lifting plate arranged at the bottom of one side of the two lifting assemblies, clamping components symmetrically arranged on both sides of the lifting plate, and a bending component arranged in the middle of the lifting plate; the clamping components include a clamping assembly arranged at the top of one side of the lifting plate, and a tensioning assembly arranged on the clamping assembly. The resistance of the cable under different bending degrees is tested through the bending component. By rotating the bending component, the middle part of the cable is pushed to make it bend, and after adjusting to different bending degrees, the change of the resistance under different bending states is tested.

Description

Technical Field

[0001] The present invention relates to the technical field of resistance constant temperature detection, and particularly to a resistance constant temperature detection device based on cable testing. Background Art

[0002] The resistance value of a cable is affected by many factors, including materials, length, cross-sectional area, temperature, humidity, etc. When the ambient temperature changes, the material properties of the cable, the state of the insulation layer, and the conductivity of the surrounding medium may all change, thus affecting the resistance value of the cable. If the resistance value of the cable changes significantly, it may lead to overheating, overload, or other faults of the cable, and in severe cases, it may even cause safety accidents. Therefore, it is very necessary to perform constant temperature detection on the resistance value of the cable. This can help us promptly discover potential problems with the cable, take corresponding measures for repair or replacement, thereby ensuring the safe operation of the cable and reducing the occurrence of faults.

[0003] Common constant temperature detection devices usually use a water bath or an oil bath for constant temperature detection. During the detection process, it is necessary to ensure that the temperature where the resistor is located is a constant value. The constant temperature water bath can provide precise water temperature and environmental control, which is conducive to ensuring the accuracy of resistor testing. Moreover, the environment and temperature of the constant temperature water bath are both stable, making the test results highly repeatable.

[0004] When the existing constant temperature water bath device measures the resistance of a cable, it usually clamps both ends of the cable to the clamping devices on both sides, and can only measure the cable in a straight state, unable to measure the resistance of the cable after local bending and with different bending degrees, that is, unable to detect the change in the internal resistance of the cable after a certain part of the cable is bent. During the daily layout and laying process of the cable, it is inevitable that a certain part of it will be bent. After bending, the overall length and the cross-sectional size of a certain part of the cable will change, and problems such as uneven temperature distribution and uneven stress distribution will occur at the bent part during long-term use. If the internal temperature distribution of the cable changes under the bent state, it may affect the performance of the cable in terms of thermal expansion coefficient, antioxidant performance, etc. And during constant temperature detection, these factor changes may have a greater impact on the detection results. Therefore, it is necessary to consider these performance changes of the cable under different bending states. Understanding the performance of the cable under the bent state can help us better evaluate its performance in terms of reliability, safety, and lifespan in actual use. Summary of the Invention

[0005] In view of the problem in the prior art that the resistance of a cable cannot be detected under different bending degrees during detection, a resistance constant temperature detection device based on cable testing is proposed.

[0006] Its purpose is to realize the detection of the resistance of the cable under different bending degrees, understand the different performance conditions of the cable under different bending degrees, which can help us better evaluate its performance in terms of reliability, safety and service life in actual use.

[0007] The technical solution of the present invention is a resistance constant temperature detection device based on cable testing, including a constant temperature tank, a heating pipe arranged in the constant temperature tank, and water filled in the constant temperature tank, and also including a detection unit arranged in the constant temperature tank;

[0008] The detection unit includes two lifting components symmetrically arranged on the inner wall of the constant temperature tank. The lifting components include two lifting assemblies arranged on the inner wall of the constant temperature tank, a lifting plate arranged at the bottom of one side of the two lifting assemblies, clamping components symmetrically arranged on both sides of the lifting plate, and a bending component arranged in the middle of the lifting plate;

[0009] The lifting components are used to drive the cable to descend and sink into the water in the constant temperature tank during the constant temperature detection of the cable. The clamping components are used to straighten the cable during detection, and the bending component is used to bend the cable to detect the resistance performance of the cable when it is bent and at different bending angles;

[0010] The clamping components include a clamping assembly arranged at the top of one side of the lifting plate, and a tensioning assembly arranged on the clamping assembly;

[0011] The clamping assembly includes a clamping seat arranged at the top of one side of the lifting plate, a clamping handle arranged on the clamping seat, a clamping screw rod arranged at the bottom of the clamping handle, an upper clamping block arranged at the bottom of the clamping screw rod, a lower clamping block arranged at the bottom of the upper clamping block, a moving screw rod arranged at the bottom of the lower clamping block, and a moving handle arranged on one side of the moving screw rod. Clamping holes that can be inserted alternately are opened on the opposite sides of the upper clamping block and the lower clamping block, and the tensioning assembly is arranged at the bottom of the clamping seat.

[0012] Further, the tensioning assembly includes two limit blocks arranged at the bottom of the clamping seat, two limit grooves correspondingly opened on the lifting plate, and the limit blocks are slidably connected in the limit grooves, and tensioning springs are respectively arranged on one side of each limit block, and one side of the tensioning spring is fixedly connected to the limit groove.

[0013] Further, both the limit grooves and the limit blocks are trapezoidal with a narrow top and a wide bottom.

[0014] Further, through holes penetrating the bottom of the lifting plate are opened in the middle of the two limit grooves.

[0015] Further, the bending component includes a bending assembly arranged inside the middle of the lifting plate, and an adaptation assembly arranged on the bending assembly;

[0016] The bending assembly includes a mounting seat arranged at the top of one side of the lifting plate, a rotating handle arranged at the top of the mounting seat, a first transmission member arranged at the bottom of the rotating handle, a second transmission member arranged on one side of the first transmission member, the second transmission member is rotatably installed in the inner cavity of the lifting plate, a moving ring arranged on the second transmission member, a first bending rod arranged at the top of the moving ring, connecting rods symmetrically hinged on both sides of the moving ring, second bending rods respectively arranged at the top of one side of the connecting rods, a first bending wheel and a second bending wheel respectively arranged at the tops of the first bending rod and the two second bending rods through an adaptation assembly, a vertical hole opened at the top of the lifting plate, transverse holes symmetrically opened on both sides of the vertical hole, and abutting grooves respectively opened in the middle parts of the first bending rod and the second bending rods, and the two abutting grooves are respectively in limit sliding connection with the transverse holes and the vertical hole.

[0017] Further, the adaptation assembly includes a first adaptation spring arranged inside the top of the first bending rod, a pulling plate arranged at the bottom of the first adaptation spring, the middle part of the pulling plate penetrates through the middle part of the first bending rod and is slidably connected with the side wall of the first bending rod, and the pulling plate is rotatably connected with the middle part of the bending wheel, a second adaptation spring arranged inside the top of the second bending rod, a pressing rod arranged at the top of the second adaptation spring, and the top of the pressing rod is in limit rotational connection with the middle part of the second bending wheel.

[0018] Further, a first bending groove is opened in the middle part of the first bending wheel, a second bending groove is opened in the middle part of the second bending wheel, the first bending groove is concave upward, and the second bending groove is concave downward.

[0019] Further, the first bending wheel is lower than the two second bending wheels in the vertical direction.

[0020] Further, a filtering hole for water to flow out is opened at the bottom of the lifting plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The resistance of the cable under different bending degrees is tested through the bending component. Rotate the bending component to push the middle part of the cable to bend it, and after adjusting to different bending degrees, test the change of the resistance in different bending states.

[0023] 2. The setting of the moving handle is used to drive the left - right movement of the lower clamping block, so that the clamping holes on the lower clamping block and the clamping holes on the upper clamping block can show different degrees of staggering, which can be used to adapt to the clamping degree requirements of cables with different thicknesses and materials during clamping.

[0024] 3. The bending angle during the test is quickly adjusted through the arranged bending assembly, achieving a quick adjustment of the bending angle within a large range, and both the first bending wheel and the second bending wheel can rotate, reducing the resistance during the adjustment process and improving the adjustment efficiency of the test.

[0025] 4. The adaptation component is used to meet the pushing and clamping requirements during the adjustment of cables with different thicknesses. When testing cables with different thicknesses, the adaptation spring one and the adaptation spring two can make the cable tend to be squeezed towards the middle, which can not only meet the requirements of different pushing heights during the testing of cables with different thicknesses, but also prevent the cable from slipping when it is pushed and bent, improving the stability during the pushing and bending process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structure schematic diagram of the whole of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall structure of the detection unit of the present invention;

[0028] Figure 3 It is a schematic diagram of the bottom view structure of the detection unit of the present invention;

[0029] Figure 4 It is a schematic diagram of the overall structure of the clamping component and the tensioning component of the present invention;

[0030] Figure 5 It is a schematic diagram of the overall structure of the bending component of the present invention;

[0031] Figure 6 It is another exploded structure schematic diagram of the bending component of the present invention;

[0032] Figure 7 It is a schematic diagram of the internal exploded structure after the cross-section of the first bending rod and the first bending wheel of the present invention;

[0033] Figure 8 It is a schematic diagram of the overall structure of the height difference in the vertical direction between the first bending wheel and the second bending wheel of the present invention;

[0034] Figure 9 It is a schematic diagram of the moving state structure of the bending component of the present invention;

[0035] Figure 10 It is a schematic diagram of the moving direction when the bending component of the present invention is in the initial reset state.

[0036] In the figure:

[0037] Constant temperature bath; 11. Heating pipe; 2. Lifting assembly; 3. Lifting plate; 4. Clamping assembly; 41. Clamping seat; 42. Clamping screw rod; 43. Upper clamping block; 44. Lower clamping block; 45. Moving screw rod; 5. Tightening assembly; 51. Limiting block; 52. Limiting groove; 53. Tightening spring; 54. Through hole; 6. Bending assembly; 61. Rotating handle; 62. Transmission part one; 63. Transmission part two; 64. Moving ring; 65. Bending rod one; 66. Bending rod two; 67. Connecting rod; 68. Bending wheel one; 69. Bending wheel two; 610. Vertical hole; 611. Horizontal hole; 612. Contact groove; 7. Adaptation assembly; 71. Adaptation spring one; 72. Pulling plate; 73. Adaptation spring two; 74. Pressing rod; 75. Bending groove one; 76. Bending groove two; 77. Filtering hole. Detailed implementation manner

[0038] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will give a detailed description of the specific implementation manner of the present invention in conjunction with the drawings of the specification.

[0039] Example 1, referring to Figures 1 - 10 , which is the first embodiment of the present invention, provides a resistance constant temperature detection device based on cable testing, including a constant temperature bath 1, a heating pipe 11 installed in the constant temperature bath 1, and water filled in the constant temperature bath 1. The heating pipe 11 can be used to heat the water in the constant temperature bath 1 to a certain constant temperature (this is the prior art and will not be elaborated), and it also includes a detection unit installed in the constant temperature bath 1; the detection unit includes two lifting components symmetrically installed on the inner wall of the constant temperature bath 1. The lifting components include two lifting assemblies 2 installed on the inner wall of the constant temperature bath 1, and a lifting plate 3 installed at the bottom of one side of the two lifting assemblies 2, clamping components symmetrically installed on both sides of the lifting plate 3, and a bending component installed in the middle of the lifting plate 3; the lifting components are used to drive the cable to descend and sink into the water in the constant temperature bath 1 during cable constant temperature detection, the clamping components are used to straighten the cable during detection, and the bending component is used to bend the cable to detect the resistance performance of the cable when bent and at different bending angles; the clamping components include a clamping assembly 4 installed at the top of one side of the lifting plate 3, and a tightening assembly 5 installed on the clamping assembly 4; the clamping assembly 4 includes a clamping seat 41 slidably connected to the top of one side of the lifting plate 3, a clamping handle rotatably connected to the clamping seat 41, a clamping screw rod 42 fixedly connected to the bottom of the clamping handle and threadedly penetrating through the clamping seat 41, an upper clamping block 43 fixedly connected to the bottom of the clamping screw rod 42, a lower clamping block 44 abutting against the bottom of the upper clamping block 43, a moving screw rod 45 threadedly connected to the bottom of the lower clamping block 44, and a moving handle fixedly connected to one side of the moving screw rod 45. Clamping holes that can be inserted alternately are opened on the opposite sides of the upper clamping block 43 and the lower clamping block 44, and the tightening assembly 5 is installed at the bottom of the clamping seat 41.

[0040] Specifically, when testing the resistance of a cable at a constant temperature, first reset the bending component, rotate the clamping handles on both sides, so that the clamping screw rod 42 drives the upper clamping block 43 to move upward. Then, place the two ends of the cable between the upper clamping block 43 and the lower clamping block 44 respectively, and then rotate the clamping handles in the reverse direction. The upper clamping block 43 and the lower clamping block 44 clamp the two ends of the cable to make it straight. Then, drive the lifting assembly 2 and the lifting plate 3 by the built-in motor to immerse the cable in the constant temperature water bath. The resistance of a certain constant temperature cable in a straight state can be tested first. When testing the resistance of the cable in a bent state, rotate the bending component to push the middle part of the cable to make it bent. After adjusting to different bending degrees, test the change of the resistance in different bending states. The moving handle is provided to drive the left and right movement of the lower clamping block 44, so that the clamping holes on the lower clamping block 44 and the clamping holes on the upper clamping block 43 can show different degrees of staggering, which can be used to meet the clamping degree requirements of cables with different thicknesses and materials when being clamped.

[0041] Refer to Figures 1 - 4 , the tensioning assembly 5 includes two limit blocks 51 fixedly connected to the bottom of the clamping seat 41, two limit slots 52 correspondingly opened on the lifting plate 3, and the limit blocks 51 are slidably connected in the limit slots 52, and tensioning springs 53 respectively fixedly connected to one side of each limit block 51, and one side of the tensioning springs 53 is fixedly connected to the limit slots 52.

[0042] Specifically, the tensioning assembly 5 is used to meet the tensioning requirement when the bending component bends the cable for testing. When the tensioned cable is pushed and bent by the bending component, the two ends of the cable will be pulled, so that the clamping seat 41 drives the limit blocks 51 at the bottom to move. The limit blocks 51 move in the limit slots 52 and pull the tensioning springs 53, so that the cable always remains straight during the test, avoiding affecting the test of the cable resistance.

[0043] Refer to Figure 4 , both the limit slots 52 and the limit blocks 51 are trapezoidal with a narrow upper part and a wide lower part.

[0044] Specifically, the design of the shapes of the limit slots 52 and the limit blocks 51 is to limit the movement of the clamping seat 41 during the movement process, thereby improving the stability of the clamping seat 41 during movement.

[0045] Refer to Figure 3 , through holes 54 penetrating the bottom of the lifting plate 3 are respectively opened in the middle of the two limit slots 52.

[0046] Specifically, the through holes 54 are used to drain the water that enters the inside of the lifting plate 3 after it rises, avoiding the water staying in the lifting plate 3 for a long time and causing rust and damage to the tensioning springs 53, and enhancing the service life of the internal components of the device.

[0047] Example 2, referring to Figures 1 - 10 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the bending member includes a bending assembly 6 installed inside the middle of the lifting plate 3, and an adaptation assembly 7 installed on the bending assembly 6; the bending assembly 6 includes a mounting seat fixedly connected to the top of one side of the lifting plate 3, a rotating handle 61 rotatably connected to the top of the mounting seat, a first transmission member 62 fixedly connected to the bottom of the rotating handle 61, a second transmission member 63 meshingly connected to one side of the first transmission member 62, the second transmission member 63 being rotatably installed in the inner cavity of the lifting plate 3, a moving ring 64 threadedly connected to the second transmission member 63, a first bending rod 65 fixedly connected to the top of the moving ring 64, connecting rods 67 symmetrically hinged to both sides of the moving ring 64, second bending rods 66 respectively rotatably connected to the tops of the back sides of the two connecting rods 67, a first bending wheel 68 and a second bending wheel 69 respectively connected to the tops of the first bending rod 65 and the two second bending rods 66 through the adaptation assembly 7, a vertical hole 610 opened at the top of the lifting plate 3, transverse holes 611 symmetrically opened on both sides of the vertical hole 610, and abutting grooves 612 respectively opened in the middle of the first bending rod 65 and the second bending rods 66, and the two abutting grooves 612 are respectively in limiting sliding connection with the transverse holes 611 and the vertical hole 610.

[0048] Specifically, when detecting the bending of the cable, the rotating handle 61 is driven to rotate, so that the first transmission part 62 drives the second transmission part 63 to rotate. The rotation of the second transmission part 63 drives the moving ring 64 to move on the second transmission part 63. When the moving ring 64 moves, it drives the first bending rod 65 at the top to move synchronously in the vertical hole 610, and the connecting rods 67 on both sides will be pulled synchronously, so as to drive the second bending rods 66 on both sides to move in the horizontal holes 611. Since the abutting grooves 612 opened in the middle of the first bending rod 65 and the second bending rod 66 can be just clamped and limited by the horizontal hole 611 and the vertical hole 610, the first bending rod 65 and the second bending rod 66 will move vertically and horizontally in the vertical hole 610 and the horizontal hole 611 respectively, so that the first bending wheel 68 and the second bending wheel 69 at their tops move synchronously. The first bending wheel 68 pushes the cable from one side of the cable through the connection position of the two second bending wheels 69, so that the middle of the cable is bent. The longer the distance that the first bending wheel 68 moves, the greater the degree of bending of the cable. And because the two second bending wheels 69 and the bending wheel are jointly connected by the two connecting rods 67, they form an isosceles triangle. That is, when the first bending wheel 68 continues to move, the two second bending wheels 69 will gradually move closer to the middle, so that the cable can be quickly bent to form a large bending angle. Similarly, when the first bending wheel 68 is driven to reset and approaches the mounting seat, its two sides will also quickly expand to form a small bending angle. If the second bending wheels 69 on both sides are fixedly arranged, when a single first bending wheel 68 pushes and bends, the movement resistance of the cable is large, and it is easy to break a thinner cable, enhancing the safety during the test; such a setting facilitates quickly adjusting the bending angle during the test, achieving a quick adjustment of the bending angle within a large range, and both the first bending wheel 68 and the second bending wheel 69 can rotate, reducing the resistance during the adjustment process and improving the adjustment efficiency of the test.

[0049] Referring to Figures 6 - 7 , the adaptation assembly 7 includes a first adaptation spring 71 fixedly connected inside the top of the first bending rod 65, a pulling plate 72 fixedly connected to the bottom of the first adaptation spring 71. The middle of the pulling plate 72 penetrates through the middle of the first bending rod 65 and is slidably connected to the side wall of the first bending rod 65, and the middle of the pulling plate 72 is rotatably connected to the middle of the bending wheel. A second adaptation spring 73 fixedly connected inside the top of the second bending rod 66, a pressing rod 74 fixedly connected to the top of the second adaptation spring 73, and the top of the pressing rod 74 is limit-rotatably connected to the middle of the second bending wheel 69.

[0050] Specifically, the adaptation component 7 is used to adapt to the pushing requirements of cables of different thicknesses during adjustment. When testing cables of different thicknesses, since the height of the lower clamping block 44 remains unchanged, the heights of the entire cables of different thicknesses after clamping are different. The adaptation spring 1 71 is used to push the bending wheel 1 68 from top to bottom to squeeze the cable, and the two adaptation springs 2 73 are used to push the two bending wheels 2 69 from bottom to top to squeeze the cable, so that the cable can be squeezed toward the middle, which can not only meet the different pushing height requirements when testing cables of different thicknesses, but also prevent the cable from slipping when being pushed to bend, thereby improving the stability during the pushing and bending process. When the bending wheel 1 68 is squeezed, the bending wheel 1 68 drives the pulling plate 72 to squeeze the adaptation spring 1 71, and when the bending wheel 2 69 is squeezed, the bending wheel 2 69 pushes the lower pressure rod 74 downward and compresses the adaptation spring 2 73.

[0051] Reference Figure 8 A bending groove 1 75 is provided in the middle of the bending wheel 1 68 , and a bending groove 2 76 is provided in the middle of the bending wheel 2 69 . The bending groove 1 75 is concave upward, and the bending groove 2 76 is concave downward.

[0052] Specifically, the shape design of the bending groove 1 75 and the bending groove 2 76 is used to improve the squeezing and limiting effect of the cable during the pushing process, so that the cable will not escape from the pushing and squeezing of the bending wheel 1 68 and the bending wheel 2 69.

[0053] Reference Figure 8 , the bending wheel 1 68 is lower than the two bending wheels 2 69 in the vertical direction.

[0054] Specifically, the bending wheel 1 68 and the two bending wheels 2 69 exert relative forces on the cable, thereby offsetting a portion of the balancing force acting on the cable.

[0055] Reference Figure 3 A filter hole 77 for water to flow out is provided at the bottom of the lifting plate 3.

[0056] Specifically, the filter hole 77 is used to discharge the water entering the lifting plate 3. The remaining structure is the same as that of the first embodiment.

[0057] Combining Embodiments 1-2, the working principle of the present invention is as follows: The cable clamped on both sides is lowered into the water of the constant temperature tank 1 by the lifting member. After being heated to a certain temperature by the heating pipe 11, the resistance of the cable is tested. When testing the change in resistance under different bending states of the cable, the handle 61 is rotated to drive the first transmission member 62 and the second transmission member 63 to rotate, so that the moving ring 64 drives the connecting rods 67 on both sides to move, causing the first bending rod 65 and the two second bending rods 66 to move in the vertical hole 610 and the horizontal hole 611 respectively. As a result, the first bending wheel 68 can push the cable, and the two second bending wheels 69 are driven synchronously, enabling the cable to be pushed and bent into different bending states. At this time, the two ends of the cable pull the clamping seat 41, and the limiting block 51 at the bottom of the clamping seat 41 pulls the tension spring 53, so that the cable always remains straight when being pushed and bent, avoiding affecting the accuracy of the cable resistance test results.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A resistance constant temperature detection device based on cable testing, comprising a constant temperature bath, a heating tube arranged in the constant temperature bath, and water filled in the constant temperature bath, characterized in that: Also included is a detection unit disposed in the constant temperature bath; The detection unit includes two lifting components symmetrically arranged on the inner wall of the thermostatic bath, the lifting components include two lifting assemblies arranged on the inner wall of the thermostatic bath, a lifting plate arranged at the bottom of one side of the two lifting assemblies, clamping components symmetrically arranged on both sides of the lifting plate, and a bending component arranged in the middle of the lifting plate; The lifting component is used to drive the cable down and sink it into the water in the constant temperature tank during the constant temperature test of the cable. The clamping component is used to straighten the cable during the test. The bending component is used to bend the cable to test the cable bending and the resistance performance at different bending angles. The clamping component includes a clamping assembly arranged on the top of one side of the lifting plate, and a tensioning assembly arranged on the clamping assembly; The clamping assembly includes a clamping seat arranged on one side of the top of the lifting plate, a clamping handle arranged on the clamping seat, a clamping screw arranged at the bottom of the clamping handle, an upper clamping block arranged at the bottom of the clamping screw, a lower clamping block arranged at the bottom of the upper clamping block, a moving screw arranged at the bottom of the lower clamping block, and a moving handle arranged on one side of the moving screw, and clamping holes that can be staggered and plugged are opened on the opposite sides of the upper clamping block and the lower clamping block, and the tensioning assembly is arranged at the bottom of the clamping seat; The bending component includes a bending assembly arranged in the middle of the lifting plate, the bending assembly includes a transmission member 1, a transmission member 2 arranged on one side of the transmission member 1, a moving ring arranged on the transmission member 2, a bending rod 1 arranged on the top of the moving ring, connecting rods symmetrically hingedly arranged on both sides of the moving ring, bending rods 2 respectively correspondingly arranged on the top of one side of the connecting rod, bending wheels 1 and 2 respectively arranged on the top of the bending rod 1 and the two bending rods 2 through the adaptation assembly, a vertical hole opened on the top of the lifting plate, and transverse holes symmetrically opened on both sides of the vertical hole; Also included is an adapting assembly disposed on the bending assembly; The bending assembly also includes a mounting seat arranged at the top of one side of the lifting plate, a rotating handle arranged at the top of the mounting seat, a transmission member 1 arranged at the bottom of the rotating handle, and a transmission member 2 rotatably mounted in the inner cavity of the lifting plate, respectively corresponding to the abutment grooves opened in the middle of the bending rod 1 and the bending rod 2, and the two abutment grooves are respectively connected to the horizontal hole and the vertical hole in a limited sliding manner; The adaptation component includes an adaptation spring 1 arranged in the top of the first bending rod, a pulling plate arranged at the bottom of the first adaptation spring, and the middle part of the pulling plate passes through the middle part of the first bending rod and is slidingly connected to a side wall of the bending rod, and the pulling plate is rotationally connected to the middle part of the bending wheel, an adaptation spring 2 arranged in the top of the second bending rod, a downward pressure rod arranged at the top of the second adaptation spring, and the top of the downward pressure rod is rotationally connected to the middle part of the second bending wheel.

2. The resistance constant temperature detection device based on cable test according to claim 1, wherein: The tensioning assembly includes two limit blocks arranged at the bottom of the clamping seat, matching two limit slots opened on the lifting plate, and the limit blocks are slidably connected in the limit slots, and tensioning springs are respectively arranged on one side of each limit block, and one side of the tensioning spring is fixedly connected to the limit slot.

3. The resistance constant temperature detection device based on cable test according to claim 2, wherein: The limiting groove and the limiting block are both in the shape of a trapezoid which is narrow at the top and wide at the bottom.

4. The resistance constant temperature detection device based on cable test according to claim 3, wherein: A through hole penetrating the bottom of the lifting plate is provided in the middle of the two limiting grooves.

5. The resistance constant temperature detection device based on cable testing according to claim 1, wherein: A bending groove 1 is formed in the middle of the first bending wheel, and a bending groove 2 is formed in the middle of the second bending wheel. The bending groove 1 is concave upward, and the bending groove 2 is concave downward.

6. The resistance constant temperature detection device based on cable test according to claim 5, wherein: The first bending wheel is lower than the two second bending wheels in the vertical direction.

7. The resistance constant temperature detection device based on cable test according to claim 1, wherein: Filter holes for water to flow out are formed at the bottom of the lifting plate.

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