A cable performance testing device

Abstract

The present invention relates to a cable performance testing device, comprising: a mounting plate, a swing mechanism, a clamping mechanism, a test water tank, a plurality of movable rollers and a tensioning mechanism; the swing mechanism is detachably arranged on the mounting plate and close to the upper end of the mounting plate; the clamping mechanism is arranged at the output end of the swing mechanism and is used to clamp the cable; the test water tank is arranged on the mounting plate and is located below the swing mechanism, and a plurality of wire rollers are arranged in the test water tank and are filled with test liquid; a plurality of movable rollers are arranged on the mounting plate at intervals, and at least two of the movable rollers are located above the test water tank; the tensioning mechanism is arranged on the mounting plate and is used to clamp the cable and keep the cable in a tensioned state at all times. The cable performance testing device of the present invention can test the bending resistance, wear resistance, corrosion resistance and waterproof performance of the cable, and the testing method is simple, flexible and stable, which can meet the requirements of various cable performance tests and provide strong technical support for the production and quality control of the cable.

Description

Technical Field

[0001] The present invention relates to the field of cable testing, and in particular to a cable performance testing device. Background Art

[0002] Cable is a general term for items such as optical cables and electrical cables. Cables have many uses, mainly used for multiple functions such as control installation, connecting equipment, and transmitting electricity. They are common and indispensable in daily life. During the production process, cables need to be tested for one or more tests such as bending resistance, high temperature resistance, and wear resistance according to different usage scenarios to meet the performance requirements of the cable. Existing cable testing devices usually only test specific test indicators, that is, they can usually only test one of the performance indicators, and the use test of high-performance cables needs to be tested separately, which leads to long testing time and high equipment cost. Summary of the invention

[0003] In view of this, the present invention provides a cable testing device capable of testing multiple different performances of a cable.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A cable performance testing device comprises: a mounting plate, a swinging mechanism, a clamping mechanism, a test water tank, a plurality of movable rollers and a tensioning mechanism; the swinging mechanism is detachably arranged on the mounting plate and close to the upper end of the mounting plate; the clamping mechanism is arranged at the output end of the swinging mechanism and is used to clamp the cable; the test water tank is arranged on the mounting plate and is located below the swinging mechanism, and a plurality of wire rollers are arranged in the test water tank and are filled with test liquid; a plurality of movable rollers are arranged on the mounting plate at intervals, and at least two of the movable rollers are located above the test water tank; the tensioning mechanism is arranged on the mounting plate and is used to clamp the cable and keep the cable in a tensioned state at all times; wherein one end of the cable can be fixed on the tensioning mechanism, and the other end of the cable is fixed on the clamping mechanism after the cable passes around the movable roller and the wire roller.

[0006] In the above technical solution, when testing the performance of the cable, one end of the cable is fixed on the clamping mechanism and the other end is fixed on the tensioning mechanism, and the cable is passed around the movable roller and the wire roller in the test water tank, and then the swing mechanism is started. The swing mechanism will pull the cable by swinging, so that one end of the cable moves back and forth, and due to the action of the tensioning mechanism, the cable will always be subjected to a tensioning force, so that the cable is always in a tensioned state. Since the cable is wound on several movable rollers and wire rollers, the cable parts wound on each movable roller or wire roller will be repeatedly bent during the reciprocating pulling process, thereby completing the test of the bending resistance and wear resistance of the cable. Secondly, the test liquid in the test water tank can simulate various conditions of the cable in the actual use environment, such as humidity, temperature, etc., and it is easy to test the waterproof performance of the cable, so that the test results are closer to the actual situation.

[0007] In summary, the cable performance testing device of the present invention can test the bending resistance, wear resistance, corrosion resistance and waterproof performance of the cable, and the testing method is simple, flexible and stable. It can meet the requirements of various cable performance tests and provide strong technical support for cable production and quality control.

[0008] Optionally, in a possible implementation, the swing mechanism includes a support base fixed on the mounting plate, a gear and an arc-shaped toothed plate rotatably mounted on the support base, a guide plate fixedly connected to the arc-shaped toothed plate, a rotating driving member fixed to the mounting plate, and a crank connected to the output end of the rotating driving member, the gear is meshingly connected to the arc-shaped toothed plate, the guide plate is provided with a guide groove, and the crank is movably inserted in the guide groove.

[0009] In the above technical solution, the rotating driving member drives the rotation of the crank, and the crank will slide in the guide groove during the rotation, thereby driving the guide plate to swing, and the arc-shaped tooth plate and the guide plate will swing synchronously. Since the arc-shaped tooth plate is meshingly connected with the gear, the arc-shaped tooth plate will synchronously drive the gear to rotate in the forward and reverse directions during the reciprocating swing, thereby driving the clamping mechanism to rotate in the forward and reverse directions.

[0010] Among them, the meshing connection between the gear and the arc-shaped tooth plate enables the swing mechanism to achieve a smooth and controllable swinging motion, avoiding jamming or jittering during the swinging process, thereby ensuring the accuracy and reliability of the cable testing, and the number of teeth or module meshing between the gear and the arc-shaped tooth plate can be adjusted to further control the swing amplitude of the clamping mechanism, so that the swing amplitude of the clamping mechanism is larger, and can even swing more than 180 degrees to meet more usage scenarios.

[0011] Optionally, in a possible implementation, a first fixed block is provided on the support seat, a first connecting shaft is rotatably mounted on the first fixed block, one end of the first connecting shaft is connected to the rotation center of the gear, and the other end is connected to the clamping mechanism.

[0012] In the above technical solution, the setting of the first fixed block provides a stable support point for the first connecting shaft, which not only enhances the overall stability of the swing mechanism, but also ensures the stability of the gear during rotation, thereby effectively avoiding test errors caused by vibration or shaking. In addition, the design of the first connecting shaft realizes a direct connection between the gear and the clamping mechanism, thereby reducing the loss in the energy transfer process and improving the efficiency of the swing mechanism.

[0013] Optionally, in a possible implementation, a second fixed block is provided on the support seat, a second connecting shaft is rotatably mounted on the second fixed block, and the arc-shaped tooth plate and the guide plate are both arranged on the second connecting shaft and are spaced apart along the length direction of the second connecting shaft.

[0014] In the above technical solution, by arranging the second fixing block on the support seat and rotatably mounting the second connecting shaft thereon, the arc-shaped toothed plate and the guide plate are stably mounted, the stability of the arc-shaped toothed plate and the guide plate during the swinging process is ensured, and the test error caused by looseness or shaking is avoided. In addition, the arc-shaped toothed plate and the guide plate are arranged at intervals along the length direction of the second connecting shaft, making the structure of the entire swing mechanism more compact and reasonable, while avoiding interference and friction between the components.

[0015] Optionally, in a possible implementation manner, a clearance hole is provided at the bottom of the support seat, and the guide plate can pass through the clearance hole.

[0016] In the above technical solution, the setting of the air-avoiding hole enables the guide plate to pass smoothly during the swinging process without being hindered by the support seat. Secondly, the setting of the air-avoiding hole also improves the flexibility of the swing mechanism. Since the guide plate can freely pass through the air-avoiding hole, the swing mechanism can adjust the swing amplitude and angle as needed to meet the testing requirements of cables of different specifications and types.

[0017] Optionally, in a possible implementation, the clamping mechanism includes a clamping plate and a clamping block, and the clamping block is rotatably mounted on the clamping plate and close to a side edge of the clamping plate.

[0018] In the above technical solution, the clamping mechanism adopts a combination design of a clamping plate and a clamping block, which has a simple structure and is convenient for clamping the cable, and the clamping block can rotate relative to the clamping plate. During the rotation process, the end of the cable can be bent at a small angle at the same time. Therefore, the bending performance of the cable end can be tested at the same time, which is closer to the actual usage scenario, making the test effect more effective.

[0019] Optionally, in a possible implementation, a clamping slot and a first locking bolt are provided on the clamping block, and the first locking bolt is located on one side of the clamping slot and is threadedly connected to the clamping block.

[0020] In the above technical solution, the clamping groove and the first locking bolt provided on the clamping block can provide sufficient clamping force for the cable and can adapt to cables of different diameters, thereby enhancing the versatility and adaptability of the clamping mechanism. In addition, the clamping operation of the cable is simpler, and the clamping and releasing actions can be achieved by simply rotating the locking bolt, without the need for additional tools or complicated operations, thereby improving the test efficiency.

[0021] Optionally, in a possible implementation, the tensioning mechanism includes a limit block, a movable rod and an elastic member, the limit block is provided with a cavity, the movable rod is movably inserted in the cavity, a bottom plate is provided at one end of the movable rod located in the cavity, the elastic member is sleeved on the outer periphery of the movable rod and is located in the cavity, and a slot is provided on the movable rod.

[0022] In the above technical solution, the tensioning mechanism realizes effective adjustment and control of the cable tensioning force through the combination of the limit block, the movable rod and the elastic member, and can always apply a pulling force to the cable. The cavity in the limit block provides sufficient movement space for the movable rod, so that the movable rod can move freely within a certain range, so that the swing mechanism can make adaptive movements according to different positions of the cable when pulling the cable back and forth, ensuring that the cable is always in a tensioned state.

[0023] Optionally, in a possible implementation manner, a second locking bolt is further provided on the movable rod, and the second locking bolt is located on one side of the slot and is threadedly connected to the movable rod.

[0024] In the above technical solution, the second locking bolt significantly enhances the stability and reliability of the tensioning mechanism. It is located on one side of the slot and is threadedly connected to the movable rod, which can tightly fix the cable or other connectors in the slot to prevent the cable from falling off or loosening due to vibration or external force during the test. At the same time, it can also adapt to cables of different specifications and types, expand its application range, and improve its versatility.

[0025] Optionally, in a possible implementation, the mounting plate is provided with a plurality of through holes, the plurality of through holes are arranged in an array, and the movable roller can be plugged into different through holes.

[0026] In the above technical solution, a plurality of through holes are provided on the mounting plate, and these through holes are distributed in the form of an array arrangement, and the movable roller can be plugged into different through holes, thereby realizing flexible adjustment of the movable roller on the mounting plate. Users can select through holes in different positions for plugging according to actual needs to adapt to cables of different lengths or different testing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural diagram of a cable performance testing device according to an embodiment of the present invention.

[0029] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0030] Figure 3 This is a back structural diagram of a cable performance testing device according to an embodiment of the present invention.

[0031] Figure 4 It is a structural schematic diagram of a swing mechanism according to an embodiment of the present invention.

[0032] Figure 5 It is a cross-sectional view of a tensioning mechanism according to an embodiment of the present invention.

[0033] Figure markings: 1-mounting plate; 11-through hole; 2-swing mechanism; 21-support seat; 211-first fixed block; 212-second fixed block; 213-first connecting shaft; 214-second connecting shaft; 215-avoidance hole; 22-gear; 23-arc-shaped tooth plate; 24-guide plate; 241-guide groove; 25-rotating drive member; 26-crank; 3-clamping mechanism; 31-clamping plate; 32-clamping block; 321-slot; 322-first locking bolt; 4-test water tank; 5-wire roller; 6-movable roller; 7-tensioning mechanism; 71-limiting block; 711-cavity; 72-movable rod; 721-slot; 73-elastic member; 74-bottom plate; 75-second locking bolt. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0036] Please refer to Figure 1 and Figure 3 The present embodiment provides a cable performance testing device, comprising: a mounting plate 1, a swing mechanism 2, a clamping mechanism 3, a test water tank 4, a plurality of movable rollers 6 and a tensioning mechanism 7; the swing mechanism 2 is detachably arranged on the mounting plate 1 and close to the upper end of the mounting plate 1; the clamping mechanism 3 is arranged at the output end of the swing mechanism 2 and is used to clamp the cable; the test water tank 4 is arranged on the mounting plate 1 and is located below the swing mechanism 2, and a plurality of wire rollers 5 are arranged in the test water tank 4 and filled with test liquid; a plurality of movable rollers 6 are arranged at intervals on the mounting plate 1, and at least two movable rollers 6 are located above the test water tank 4; the tensioning mechanism 7 is arranged on the mounting plate 1 and is used to clamp the cable and keep the cable in a tensioned state at all times; wherein one end of the cable can be fixed on the tensioning mechanism 7, and the other end of the cable is fixed on the clamping mechanism 3 after passing around the movable roller 6 and the wire roller 5. Specifically, there is one conductor roller 5 in the test water tank 4, and there are three or more movable rollers 6. The surfaces of the conductor roller 5 and the movable roller 6 can be set with different roughness according to actual needs to test the wear resistance of the cable.

[0037] When testing the performance of the cable in this embodiment, one end of the cable is fixed on the clamping mechanism 3 and the other end is fixed on the tensioning mechanism 7, and the cable is passed around the movable roller 6 and the wire roller 5 located in the test water tank 4, and then the swing mechanism 2 is started. The swing mechanism 2 will pull the cable by swinging, so that one end of the cable moves back and forth, and due to the action of the tensioning mechanism 7, the cable will always be subjected to a tensioning force, so that the cable is always in a tensioned state. Since the cable is wound on several movable rollers 6 and wire rollers 5, the cable part wound on each movable roller 6 or wire roller 5 will be repeatedly bent during the reciprocating pulling process, thereby completing the test of the bending resistance and wear resistance of the cable. Secondly, the test liquid in the test water tank 4 can simulate various conditions of the cable in the actual use environment, such as humidity, temperature, etc., and it is easy to test the waterproof performance of the cable, so that the test results are closer to the actual situation.

[0038] In summary, the cable performance testing device of this embodiment can test the bending resistance, wear resistance, corrosion resistance and waterproof performance of the cable, and the testing method is simple, flexible and stable. It can meet the requirements of various cable performance tests and provide strong technical support for cable production and quality control.

[0039] Please refer to Figure 4 In this embodiment, the swing mechanism 2 includes a support seat 21 fixed on the mounting plate 1, a gear 22 and an arc-shaped toothed plate 23 rotatably mounted on the support seat 21, a guide plate 24 fixedly connected to the arc-shaped toothed plate 23, a rotary drive member 25 fixed to the mounting plate 1, and a crank 26 connected to the output end of the rotary drive member 25, the gear 22 is meshedly connected with the arc-shaped toothed plate 23, the guide plate 24 is provided with a guide groove 241, and the crank 26 is movably inserted in the guide groove 241. Specifically, the support seat 21 is provided with two support plates, the two support plates are perpendicular to each other, one of which is parallel to the mounting plate 1 and the other is perpendicular to the mounting plate 1. The arc-shaped toothed plate 23 and the guide plate 24 are mounted on a support plate parallel to the mounting plate 1, and the gear 22 is mounted on a support plate perpendicular to the support plate. The rotary drive member 25 is a rotary cylinder or a motor.

[0040] The rotating drive member 25 of this embodiment drives the rotation of the crank 26. During the rotation, the crank 26 slides in the guide groove 241, thereby driving the guide plate 24 to swing, and the arcuate tooth plate 23 swings synchronously with the guide plate 24. Since the arcuate tooth plate 23 is meshed and connected with the gear 22, the arcuate tooth plate 23 will synchronously drive the gear 22 to rotate in the forward and reverse directions during the reciprocating swing, thereby driving the clamping mechanism 3 to rotate in the forward and reverse directions.

[0041] Among them, the meshing connection between the gear 22 and the arc-shaped tooth plate 23 enables the swing mechanism 2 to achieve a smooth and controllable swinging motion, avoiding jamming or jittering during the swinging process, thereby ensuring the accuracy and reliability of the cable test, and the number of teeth or module meshing between the gear 22 and the arc-shaped tooth plate 23 can be adjusted to further control the swing amplitude of the clamping mechanism 3, so that the swing amplitude of the clamping mechanism 3 is larger, and can even swing more than 180 degrees to meet more usage scenarios.

[0042] Please refer to Figure 1 and Figure 4 In this embodiment, a first fixing block 211 is provided on the support seat 21, and a first connecting shaft 213 is rotatably mounted on the first fixing block 211, one end of the first connecting shaft 213 is connected to the rotation center of the gear 22, and the other end is connected to the clamping mechanism 3. The first fixing block 211 is located on a support plate perpendicular to the mounting plate 1, and the first connecting shaft 213 is rotatably connected to the first fixing block 211 through a bearing.

[0043] The arrangement of the first fixing block 211 in this embodiment provides a stable support point for the first connecting shaft 213, which not only enhances the overall stability of the swing mechanism 2, but also ensures the stability of the gear 22 during the rotation process, thereby effectively avoiding the test error caused by vibration or shaking. In addition, the design of the first connecting shaft 213 realizes a direct connection between the gear 22 and the clamping mechanism 3, thereby reducing the loss in the energy transfer process and improving the efficiency of the swing mechanism 2.

[0044] Please continue to refer to Figure 1 and Figure 4 In this embodiment, a second fixing block 212 is provided on the support seat 21, a second connecting shaft 214 is rotatably mounted on the second fixing block 212, the arc-shaped toothed plate 23 and the guide plate 24 are both disposed on the second connecting shaft 214 and are spaced apart along the length direction of the second connecting shaft 214. The second fixing block 212 is located on a support plate parallel to the mounting plate 1, and the second connecting shaft 214 is rotatably connected to the second fixing block 212 via a bearing.

[0045] In this embodiment, by setting a second fixing block 212 on the support seat 21 and rotatably mounting the second connecting shaft 214 thereon, the arc-shaped toothed plate 23 and the guide plate 24 are stably mounted, ensuring the stability of the arc-shaped toothed plate 23 and the guide plate 24 during the swinging process, and avoiding the test error caused by looseness or shaking. In addition, the arc-shaped toothed plate 23 and the guide plate 24 are arranged at intervals along the length direction of the second connecting shaft 214, making the structure of the entire swing mechanism 2 more compact and reasonable, while avoiding interference and friction between the components.

[0046] Please refer to Figure 4In this embodiment, a clearance hole 215 is provided at the bottom of the support seat 21, and the guide plate 24 can pass through the clearance hole 215. Among them, the gear 22 and the toothed plate are both located above the clearance hole 215. The setting of the clearance hole 215 allows the guide plate 24 to pass smoothly during the swinging process without being hindered by the support seat 21. Secondly, the setting of the clearance hole 215 also improves the flexibility of the swing mechanism 2. Since the guide plate 24 can freely pass through the clearance hole 215, the swing mechanism 2 can adjust the swing amplitude and angle as needed to meet the testing requirements of cables of different specifications and types.

[0047] Please refer to Figure 1 In this embodiment, the clamping mechanism 3 includes a clamping plate 31 and a clamping block 32 . The clamping block 32 is rotatably mounted on the clamping plate 31 and close to one side edge of the clamping plate 31 .

[0048] The clamping mechanism 3 of the present embodiment adopts a combined design of a clamping plate 31 and a clamping block 32, which has a simple structure and is convenient for clamping the cable, and the clamping block 32 can rotate relative to the clamping plate 31. During the rotation process, the end of the cable can be bent at a small angle at the same time. Therefore, the bending performance of the cable end can be tested at the same time, which is closer to the actual usage scenario, making the test effect more effective.

[0049] Please refer to Figure 2 In this embodiment, a clamping slot 321 and a first locking bolt 322 are provided on the clamping block 32. The first locking bolt 322 is located on one side of the clamping slot 321 and is threadedly connected to the clamping block 32. The clamping slot 321 and the first locking bolt 322 provided on the clamping block 32 can provide sufficient clamping force for the cable and can adapt to cables of different diameters, thereby enhancing the versatility and adaptability of the clamping mechanism 3. In addition, the clamping operation of the cable is simpler, and the clamping and releasing actions can be achieved by simply rotating the locking bolt, without the need to use additional tools or perform complicated operations, thereby improving the test efficiency.

[0050] Please refer to Figure 5 In this embodiment, the tensioning mechanism 7 includes a limit block 71, a movable rod 72 and an elastic member 73. A cavity 711 is provided in the limit block 71. The movable rod 72 is movably inserted in the cavity 711. A bottom plate 74 is provided at one end of the movable rod 72 located in the cavity 711. The elastic member 73 is sleeved on the outer periphery of the movable rod 72 and located in the cavity 711. A slot 721 is provided on the movable rod 72. The elastic member 73 is located between the bottom plate 74 and the inner top wall of the limit block 71. The elastic member 73 is an elastic rubber or metal spring.

[0051] In this embodiment, the tensioning mechanism 7 realizes effective adjustment and control of the cable tensioning force through the combination of the limit block 71, the movable rod 72 and the elastic member 73, and can always apply a pulling force to the cable. The cavity 711 in the limit block 71 provides sufficient movement space for the movable rod 72, so that the movable rod 72 can move freely within a certain range, so that the swing mechanism 2 can make adaptive movements according to different positions of the cable when pulling the cable back and forth, ensuring that the cable is always in a tensioned state.

[0052] In this embodiment, the movable rod 72 is further provided with a second locking bolt 75, which is located at one side of the slot 721 and is threadedly connected to the movable rod 72. When in use, the cable can be inserted into the slot 721 and fixed by the second locking bolt 75.

[0053] The second locking bolt 75 significantly enhances the stability and reliability of the tensioning mechanism 7. The second locking bolt 75 is located on one side of the slot 721 and is threadedly connected to the movable rod 72, which can tightly fix the cable or other connectors in the slot 721 to prevent the cable from falling off or loosening due to vibration or external force during the test. At the same time, it can also adapt to cables of different specifications and types, expand its application range, and improve its versatility.

[0054] In this embodiment, the mounting plate 1 is provided with a plurality of through holes 11, and the plurality of through holes 11 are arranged in an array, and the movable roller 6 can be plugged into different through holes 11. The through holes 11 provided on the mounting plate 1 are distributed in an array arrangement, and the movable roller 6 can be plugged into different through holes 11, thereby realizing flexible adjustment of the movable roller 6 on the mounting plate 1, and the user can select through holes 11 at different positions for plugging according to actual needs, so as to adapt to cables of different lengths or different testing requirements.

[0055] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0056] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable performance testing device, characterized in that: include: Mounting plate; A swing mechanism is detachably disposed on the mounting plate and close to the upper end of the mounting plate; A clamping mechanism, arranged at the output end of the swing mechanism, for clamping the cable; A test water tank, arranged on the mounting plate and located below the swing mechanism, wherein a plurality of wire rollers are arranged in the test water tank and the test liquid is contained; A plurality of movable rollers are arranged on the mounting plate at intervals, and at least two of the movable rollers are located above the test water tank; as well as A tensioning mechanism, disposed on the mounting plate, for clamping the cable and keeping the cable in a tensioned state at all times; One end of the cable can be fixed on the tensioning mechanism, and the other end of the cable is fixed on the clamping mechanism after the cable passes around the movable roller and the conductor roller.

2. The cable performance testing device according to claim 1, characterized in that: The swing mechanism includes a support base fixed on the mounting plate, a gear and an arc-shaped toothed plate rotatably mounted on the support base, a guide plate fixedly connected to the arc-shaped toothed plate, a rotating driving member fixed to the mounting plate, and a crank connected to the output end of the rotating driving member, the gear is meshingly connected to the arc-shaped toothed plate, a guide groove is provided on the guide plate, and the crank is movably inserted in the guide groove.

3. The cable performance testing device according to claim 2, characterized in that: The support seat is provided with a first fixing block, on which a first connecting shaft is rotatably mounted, one end of the first connecting shaft is connected to the rotation center of the gear, and the other end is connected to the clamping mechanism.

4. The cable performance testing device according to claim 2, characterized in that: The support seat is provided with a second fixed block, on which a second connecting shaft is rotatably mounted, and the arc-shaped toothed plate and the guide plate are both arranged on the second connecting shaft and are spaced apart along the length direction of the second connecting shaft.

5. The cable performance testing device according to claim 2, characterized in that: The bottom of the support seat is provided with a clearance hole, and the guide plate can pass through the clearance hole.

6. The cable performance testing device according to claim 1, characterized in that: The clamping mechanism comprises a clamping plate and a clamping block, wherein the clamping block is rotatably mounted on the clamping plate and is close to one side edge of the clamping plate.

7. The cable performance testing device according to claim 6, characterized in that: The clamping block is provided with a clamping slot and a first locking bolt. The first locking bolt is located at one side of the clamping slot and is threadedly connected to the clamping block.

8. The cable performance testing device according to claim 1, characterized in that: The tensioning mechanism includes a limit block, a movable rod and an elastic member. A cavity is provided in the limit block. The movable rod is movably inserted in the cavity. A bottom plate is provided at one end of the movable rod located in the cavity. The elastic member is sleeved on the outer periphery of the movable rod and is located in the cavity. A slot is provided on the movable rod.

9. The cable performance testing device according to claim 8, characterized in that: The movable rod is also provided with a second locking bolt, which is located at one side of the slot and is threadedly connected to the movable rod.

10. The cable performance testing device according to any one of claims 1 to 9, characterized in that: The mounting plate is provided with a plurality of through holes, which are arranged in an array, and the movable roller can be plugged into different through holes.

Images