Device for testing repeated bending of cable

Abstract

The utility model discloses a cable repeated bending testing device which comprises a repeated bending testing device body, the repeated bending testing device body comprises a fixed vertical plate, a movable bending frame, fixed blocks and a cable body, the movable bending frame is arranged on the front surface of the fixed vertical plate, and the fixed blocks are connected to the two ends of the fixed vertical plate in a sliding mode through sliding blocks; through the design, after the repeated bending test device main body is installed and before testing, the end part of a cable body penetrates through a through hole and a lower pressing ring, a knob is held by hand to rotate a threaded rod, and a rotating ring rotates to press the lower pressing ring; when the cable is fixedly installed, the surface of the cable is not convenient to damage, the cable is easy to be extruded, protected and fixedly installed before being tested, the cable is not easy to damage, and the cable is not easy to damage. And the protection effect of the repeated bending test device main body on fixed installation during the repeated bending test operation of the cable is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of repeated bending test devices, in particular to a repeated bending test device for a cable. Background Art

[0002] The cable is a conductor composed of two or more wires. After processing and production, the cable needs to be repeatedly bent and tested, usually by a repeated bending test device. The existing repeated bending test device is a device used for bending test during cable processing and production. During the test, it is convenient to pass the end of the cable through the internal protection of the fixed block for extrusion and fixed installation. The extrusion and fixed installation is more convenient and less likely to cause damage, thereby improving the protective effect of the repeated bending test device on the fixed installation of the cable during the repeated bending test operation.

[0003] When the existing repeated bending test device is used to test the fixed installation cable, the end of the cable is directly passed through the internal rotating screw of the fixing block for squeezing and fixing. When the screw is squeezed on the surface of the cable for fixed installation, it is easy to cause heavy force to damage the surface of the cable, thereby affecting the protection effect of the repeated bending test device on the fixed installation of the cable repeated bending test operation. For this reason, the utility model proposes a cable repeated bending test device. Utility Model Content

[0004] The purpose of the utility model is to provide a cable repeated bending test device to solve the problem proposed in the above background technology that when the repeated bending test device is used for testing a fixedly installed cable, the screws are squeezed on the surface of the cable during the fixed installation, which easily causes heavy force to damage the cable surface, thereby affecting the protective effect of the repeated bending test device on the fixed installation of the cable during the repeated bending test operation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cable repeated bending test device, comprising a repeated bending test device body, the repeated bending test device body comprising a fixed vertical plate, a movable bending frame, a fixed block and a cable body, the movable bending frame is arranged on the front surface of the fixed vertical plate, the fixed block is slidably connected to the two ends of the fixed vertical plate through a slider, the cable body runs through the interior of the movable bending frame, and the repeated bending test device body is also provided with:

[0006] A fixed installation mechanism, wherein the fixed installation mechanism comprises a rotating connection component and a pressing installation component, wherein the rotating connection component is arranged on the upper surface of the fixed block, and the pressing installation component is arranged inside the fixed block;

[0007] The control sliding mechanism comprises a control sliding assembly, and the control sliding assembly is arranged at the connection between the inner side of the movable bending frame and the two sides of the surface of the fixed vertical plate.

[0008] Preferably, a screw rod is rotatably connected at the middle position inside the fixed vertical plate, the top end of the screw rod is located on the surface of the fixed vertical plate and a forward and reverse motor is installed, and the screw rod passes through the rear surface of the movable bending frame, and two rollers are rotatably connected on both sides of the front surface of the fixed vertical plate, and the outer surface of the cable body is embedded in the interior of the rollers, and a return spring is provided at the end of the fixed block and the internal connection of the fixed vertical plate.

[0009] Preferably, the rotary connection assembly comprises a threaded rod rotatably connected to the upper surface of the fixed block, a rotary knob is provided at the top end of the threaded rod, and a rotating ring is provided at the bottom end of the threaded rod located inside the fixed block.

[0010] Preferably, the downward pressing installation assembly includes a through hole opened inside the fixed block, a lower extrusion groove is opened at the inner bottom end of the through hole, a lower pressing ring is arranged inside the lower extrusion groove, and the rotating ring is embedded in the lower pressing ring.

[0011] Preferably, the lower pressing ring is a cylindrical structure, and the outer surface of the lower pressing ring is consistent with the inner surface structure of the lower extrusion groove.

[0012] Preferably, the control sliding assembly includes limiting slide grooves opened on both sides of the front surface of the fixed vertical plate, the limiting slide grooves are internally slidably connected to the limiting slider, and the end of the limiting slider is fixedly connected to the inner side of the movable bending frame by bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] Through the design, after the main body of the repeated bending test device is installed and before the test, the end of the cable body is passed through the through hole and the inside of the lower pressing ring, and the threaded rod is rotated by holding the knob to press the lower pressing ring downward by rotating the rotating ring until the lower pressing ring is pressed down to the inside of the lower extrusion groove to fix the end of the cable in the lower extrusion groove for extrusion. It is not convenient to damage the cable surface during fixed installation, and it is easy to fix the cable for extrusion protection before the test, which is not easy to cause damage, thereby improving the protection effect of the main body of the repeated bending test device on the fixed installation of the cable during the repeated bending test operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 The enlarged structural diagram of part A in the middle;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing block, the threaded rod and the lower pressing ring of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the downward pressing ring of the utility model;

[0019] Figure 5 For this utility model Figure 1 The enlarged structural diagram of part B in the middle;

[0020] In the figure: 100, the main body of the repeated bending test device; 101, the fixed vertical plate; 102, the forward and reverse motor; 103, the screw rod; 104, the movable bending frame; 105, the roller; 106, the fixed block; 1061, the through hole; 1062, the threaded rod; 1063, the rotating ring; 1064, the lower pressing ring; 1065, the lower extrusion groove; 1066, the limit slider; 1067, the limit slide groove; 107, the cable body; 108, the reset spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 5 The utility model provides a technical solution: a cable repeated bending test device, including a repeated bending test device body 100, the repeated bending test device body 100 includes a fixed vertical plate 101, a movable bending frame 104, a fixed block 106 and a cable body 107, the movable bending frame 104 is arranged on the front surface of the fixed vertical plate 101, the fixed block 106 is slidably connected to both ends of the fixed vertical plate 101 through a slider, the cable body 107 runs through the inside of the movable bending frame 104, and a screw rod 103 is rotatably connected at the middle position inside the fixed vertical plate 101, and the top of the screw rod 103 is located on the fixed vertical plate 101. The surface is installed with a forward and reverse motor 102, and the screw rod 103 runs through the rear surface of the mobile bending frame 104. The forward and reverse motor 102 drives the screw rod 103 to rotate, so that the screw rod 103 rotates to drive the mobile bending frame 104 to move up and down, so as to continuously bend the cable body 107. Two rollers 105 are rotatably connected to both sides of the front surface of the fixed vertical plate 101, and the outer surface of the cable body 107 is embedded in the roller 105. A reset spring 108 is provided at the end of the fixed block 106 and the internal connection of the fixed vertical plate 101. The main body 100 of the repeated bending test device is also provided with:

[0023] A fixed installation mechanism is provided, and the fixed installation mechanism includes a rotating connection component and a pressing installation component. The rotating connection component is arranged on the upper surface of the fixed block 106, and the pressing installation component is arranged inside the fixed block 106. When the repeated bending test device main body 100 performs repeated bending test on the cable, the fixed installation mechanism can fix the end of the cable to the inside of the fixed block 106, which is convenient for protective fixed installation and use. The cable is not easily damaged by being squeezed and protected before the test, thereby improving the protective effect of fixed installation during the repeated bending test operation of the repeated bending test device main body 100 on the cable.

[0024] In order to facilitate the downward pressing of the pressing ring 1064 through the rotating connection assembly to press down and extrude the cable body 107 for fixed installation, and to facilitate protective fixed installation, in this embodiment, preferably, the rotating connection assembly includes a threaded rod 1062 rotatably connected to the upper surface of the fixed block 106, and a rotating knob is provided at the top of the threaded rod 1062. The bottom end of the threaded rod 1062 is located inside the fixed block 106 and a rotating ring 1063 is provided, which is convenient for holding the knob to drive the threaded rod 1062 to rotate. The rotating threaded rod 1062 is rotated through the rotating ring 1063 to press down and extrude the pressing ring 1064 for fixed installation.

[0025] In order to facilitate the cable body 107 to pass through the interior of the fixed block 106 and then be squeezed and fixed for installation by pressing down the installation assembly, in the present embodiment, preferably, the pressing down installation assembly includes a through hole 1061 opened in the interior of the fixed block 106, and a lower extrusion groove 1065 is opened at the inner bottom end of the through hole 1061, and a lower pressing ring 1064 is arranged inside the lower extrusion groove 1065. After the cable is repeatedly bent and tested, the end of the cable body 107 is engaged in the interior of the lower pressing ring 1064 for installation and use, and the rotating ring 1063 is embedded in the interior of the lower pressing ring 1064. The lower pressing ring 1064 has a cylindrical structure, and the outer surface of the lower pressing ring 1064 is consistent with the inner surface structure of the lower extrusion groove 1065. After the cable body 107 passes through the interior of the lower pressing ring 1064, the lower pressing ring 1064 is pressed down to the interior of the lower extrusion groove 1065 to squeeze and fix the cable body 107 for installation, which is convenient for protective fixed installation.

[0026] A control sliding mechanism includes a control sliding assembly, which is arranged at the connection between the inner side of the movable bending frame 104 and the two sides of the surface of the fixed vertical plate 101. When the movable bending frame 104 is repeatedly moved up and down on the front surface of the fixed vertical plate 101, the control sliding mechanism can more stably control the movement of the movable bending frame 104. The movable bending frame 104 is more stable during frequent repeated testing movements and is not prone to shaking and cable deviation, thereby improving the stability of control of the repeated bending test device body 100 during repeated cable bending test operations.

[0027] In order to facilitate the repeated up and down movement of the movable bending frame 104 more stably by controlling the sliding assembly, in the present embodiment, preferably, the control sliding assembly includes limiting slide grooves 1067 opened on both sides of the front surface of the fixed vertical plate 101, and the internal sliding connection of the limiting slide groove 1067 is connected to the limiting slider 1066, and the end of the limiting slider 1066 is fixedly connected to the inner side of the movable bending frame 104 by bolts, so that when the movable bending frame 104 moves up and down on the surface of the fixed vertical plate 101, the limiting slider 1066 is driven to slide inside the limiting slide groove 1067 for more stable control operation.

[0028] The working principle and use process of the utility model are as follows: before using the cable repeated bending test device, firstly, the repeated bending test device body 100 is fixedly installed at the test position by fixing the vertical plate 101, after the repeated bending test device body 100 is installed, before the test, the end of the cable body 107 is passed through the inside of the through hole 1061 and the lower pressing ring 1064, the threaded rod 1062 is rotated by the rotating ring 1063 to press down the lower pressing ring 1064, until the lower pressing ring 1064 is pressed down to the inside of the lower extrusion groove 1065, and the end of the cable is squeezed and fixed in the lower extrusion groove 1065, which is not convenient for damaging the cable surface during fixed installation, and is easy to be squeezed and protected before the test. Fixed installation is not easy to cause damage, thereby improving the protective effect of the repeated bending test device body 100 on the fixed installation of the cable during the repeated bending test operation;

[0029] Finally, when the main body 100 of the repeated bending test device is tested after the cable is fixed and installed, the forward and reverse motor 102 moves to drive the screw rod 103 to rotate, and the movable bending frame 104 moves back and forth on the surface of the fixed vertical plate 101. When the movable bending frame 104 moves up and down, the cable body 107 rolls inside the roller 105 to pull the cable body 107 to bend, and the cable is bent back and forth for testing. After the test, when the movable bending frame 104 returns to its original position, the reset spring 108 is deformed to elastically slide the fixed block 106 to its original position, and the fixed block 106 is moved back and forth. The cable body 107 is straightened and restored to its original position, and it is convenient to perform repeated bending test operations on the cable through the repeated bending test device main body 100. When the movable bending frame 104 moves up and down on the surface of the fixed vertical plate 101, the limiting slider 1066 stably controls the movable bending frame 104 to move up and down inside the limiting slide groove 1067, so that the movable bending frame 104 is more stable during frequent repeated test movements, and is not prone to shaking and cable deviation, thereby improving the stability of control of the repeated bending test device main body 100 during repeated bending test operations on the cable.

[0030] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable repeated bending test device, comprising a repeated bending test device body (100), wherein the repeated bending test device body (100) comprises a fixed vertical plate (101), a movable bending frame (104), a fixed block (106) and a cable body (107), wherein the movable bending frame (104) is arranged on the front surface of the fixed vertical plate (101), the fixed block (106) is slidably connected to both ends of the fixed vertical plate (101) through a slider, and the cable body (107) runs through the interior of the movable bending frame (104). Features: The repeated bending test device body (100) is also provided with: A fixed installation mechanism, wherein the fixed installation mechanism comprises a rotating connection component and a pressing installation component, wherein the rotating connection component is arranged on the upper surface of the fixed block (106), and the pressing installation component is arranged inside the fixed block (106); A control sliding mechanism comprises a control sliding assembly, wherein the control sliding assembly is arranged at the connection between the inner side of the movable bending frame (104) and the two sides of the surface of the fixed vertical plate (101).

2. The cable repeated bending test device according to claim 1, Features: A screw rod (103) is rotatably connected at the middle position inside the fixed vertical plate (101); the top end of the screw rod (103) is located on the surface of the fixed vertical plate (101) and a forward and reverse motor (102) is installed thereon; the screw rod (103) passes through the rear surface of the movable bending frame (104); two rollers (105) are rotatably connected at both sides of the front surface of the fixed vertical plate (101); the outer surface of the cable body (107) is embedded in the inside of the rollers (105); and a return spring (108) is provided at the connection between the end of the fixed block (106) and the inside of the fixed vertical plate (101).

3. The cable repeated bending test device according to claim 1, Features: The rotary connection assembly comprises a threaded rod (1062) rotatably connected to the upper surface of a fixed block (106), a rotating knob is provided at the top end of the threaded rod (1062), and a rotating ring (1063) is provided at the bottom end of the threaded rod (1062) located inside the fixed block (106).

4. The cable repeated bending test device according to claim 3, Features: The downward pressing installation assembly comprises a through hole (1061) provided inside the fixed block (106), a lower extrusion groove (1065) is provided at the inner bottom end of the through hole (1061), a lower pressing ring (1064) is provided inside the lower extrusion groove (1065), and the rotating ring (1063) is embedded in the interior of the lower pressing ring (1064).

5. The cable repeated bending test device according to claim 4, Features: The lower pressing ring (1064) is a columnar structure, and the outer surface of the lower pressing ring (1064) is consistent with the inner surface structure of the lower extrusion groove (1065).

6. The cable repeated bending test device according to claim 1, Features: The control sliding assembly comprises limiting sliding grooves (1067) opened on both sides of the front surface of the fixed vertical plate (101), the limiting sliding grooves (1067) are internally slidably connected to the limiting sliding block (1066), and the end of the limiting sliding block (1066) is fixedly connected to the inner side of the movable bending frame (104) by bolts.

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