Cable bending resistance detection device

Abstract

The utility model belongs to the technical field of cable detection devices, and particularly relates to a cable bending resistance detection device which comprises a detection table, an installation groove is formed in the upper side of the detection table, a motor is fixedly connected to the left side wall of the inner side of the installation groove, and the output end of the motor is fixedly connected with a bidirectional lead screw. The end, away from the motor, of the bidirectional lead screw is rotationally connected with the right side wall of the inner side of the mounting groove, adjusting plates are arranged on the upper side of the detection table in a bilateral symmetry mode and movably connected to the outer side of the bidirectional lead screw in a sleeving mode, side plates are connected to the upper side of the detection table in a bilateral symmetry mode, and the adjusting plates are located on the opposite sides of the two side plates. The problems that according to an existing device, workers observe and manually record the breaking time in the whole process, manpower is consumed, and the working efficiency of the workers is affected are solved; the problems that an existing device cannot well cope with cables of different sizes and lengths, clamping is not stable enough, and the cables are loosened and even fall off are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable detection devices, in particular to a cable bending resistance detection device. Background Art

[0002] Cables include power cables, control cables, compensation cables, shielded cables, high temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wires and insulation layers, used to connect circuits, electrical appliances, etc. During cable production, the performance of the cables needs to be tested, so a special bending resistance test device is used to test the cables for bending resistance.

[0003] When conducting a bending test with an existing bending resistance testing device, the bending test time is relatively long, and the cable breaking time during the bending process is not fixed. The entire process depends on the staff to observe and manually record the breaking time, which is not only labor-intensive but also affects the staff's work efficiency. The existing bending resistance testing test cannot cope well with cables of different sizes and lengths. The clamping is not stable enough, causing the cable to loosen or even fall off during the bending resistance test, resulting in test failure and affecting work efficiency. Utility Model Content

[0004] The utility model aims to provide a cable bending resistance detection device to solve the problem that the existing device proposed in the above background technology relies entirely on staff to observe the whole process and manually record the breaking time, which consumes manpower and affects the work efficiency of the staff; the existing device cannot cope with cables of different sizes and lengths well, and the clamping is not stable enough, causing the cable to loosen or even fall off.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cable bending resistance detection device comprises a detection platform, an installation groove is opened on the upper side of the detection platform, a motor is fixedly connected to the left side wall of the inner side of the installation groove, the output end of the motor is fixedly connected to a bidirectional screw rod, and the end of the bidirectional screw rod away from the motor is rotatably connected to the right side wall of the inner side of the installation groove, an adjustment plate is symmetrically arranged on the upper side of the detection platform, the adjustment plate is movably sleeved on the outer side of the bidirectional screw rod, the upper side of the detection platform is symmetrically connected to side plates, the adjustment plate is located on opposite sides of the two side plates, and guide rods are symmetrically connected to the opposite sides of the two side plates front and back, the guide rod passes through the adjustment plate, a threaded rod is screwed on the upper side of the adjustment plate, a fixing knob is fixedly connected to the upper side of the threaded rod, a clamping groove is opened on the left and right sides of the adjustment plate, and a clamping part is fixedly arranged on the inner side of the clamping groove.

[0006] Preferably, a support plate is fixedly connected to the opposite side of the adjustment plate, an electric push rod is fixedly connected to the upper side of the support plate, a bending block is fixedly connected to the upper side of the electric push rod, and bending holes are penetrated through the left and right sides of the bending block.

[0007] Preferably, the clamping portion includes a pressing block, a bevel groove, a bevel, a spring, a limit block, and a clamping bayonet, and the upper side of the pressing block corresponds to the lower end of the threaded rod.

[0008] Preferably, both left and right side walls inside the clamping groove are provided with sliding grooves, the outer ends of the pressing block are slidably connected to the sliding grooves, and the inclined groove is provided on the lower side of the pressing block.

[0009] Preferably, a spring groove is symmetrically provided at the bottom of the inner side of the clamping groove, the inclined surface is symmetrically arranged at the bottom of the inner side of the clamping groove, the inclined surface is slidably connected to the spring groove, the spring is fixedly connected to the opposite side of the inclined surface and the spring groove, the limit block is fixedly arranged on the opposite side of the inclined surface, and the inclined surface groove corresponds to the inclined surface.

[0010] Preferably, an electromagnetic relay, an alarm and a controller are fixedly connected to the upper side of the detection platform.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1) When the device is in use, the cable is passed through the clamping groove provided through the right adjusting plate, then through the inner sides of the left and right bending holes, and finally out of the clamping groove provided through the left adjusting plate, and then the left and right fixing knobs are rotated to make the two threaded rods move downward, and the lower ends of the threaded rods press the pressing block downward, and the pressing block moves downward along the slide groove. Due to the limitation of the limit block, the upper end of the inclined surface can just fit into the inclined surface groove of the pressing block, and as the pressing block moves downward, the inclined surfaces move toward each other, so that the clamping bayonet clamps the cable and gradually tightens. This design can adapt to cables of different sizes and make the clamping stable, and the function of the motor is to control the rotation of the bidirectional lead screw to drive the adjusting plate to move left and right. This design can tighten or relax the cable according to the use requirements, and can be adjusted according to the length of different cables, so that the device has a larger operating space.

[0013] 2) This device connects the external power supply to the electromagnetic relay, and the moving contact of the electromagnetic relay is electrically connected to the motor, electric push rod, controller and cable, and the static contact of the electromagnetic relay is electrically connected to the alarm. After the electromagnetic relay is connected to the power supply, the coil of the electromagnet inside it generates a magnetic field, exerts gravitational force on the armature, so that the armature is connected to the moving contact, and the motor, controller and electric push rod are powered. At this time, the controller is operated to start the motor, and the adjustment plate moves left and right to adjust the distance. Then the electric push rod is started, so that the two electric push rods are alternately extended and retracted through the telescopic ends, driving the bending holes to move up and down alternately, and the cable is bent. When it is bent to a certain extent, the cable breaks, the power supply is interrupted, and the motor and electric push rod are powered off and stop working. At this time, the magnetic field of the coil disappears and loses gravitational force, so that the armature is connected to the static contact, and the power supply supplies power to the alarm, which alarms the outside world. This design does not require staff to observe all the time, freeing up manpower and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the right view structure of the adjustment plate;

[0016] Figure 3 It is a schematic diagram of the structure of the adjustment plate from a top view;

[0017] Figure 4 It is a schematic diagram of the right view of the clamping part.

[0018] In the figure: 1. test table, 2. mounting groove, 3. motor, 4. bidirectional screw, 5. adjustment plate, 6. side plate, 7. guide rod, 8. threaded rod, 9. fixing knob, 10. clamping part, 11. support plate, 12. electric push rod, 13. bending block, 14. bending hole, 15. pressure block, 16. inclined groove, 17. inclined surface, 18. spring, 19. limit block, 20. clamping bayonet, 21. electromagnetic relay, 22. alarm, 23. controller. DETAILED DESCRIPTION

[0019] 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.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] Example:

[0022] See also Figure 1-4 The utility model provides a technical solution: a cable bending resistance detection device, including a detection platform 1, a mounting groove 2 is opened on the upper side of the detection platform 1, and a motor 3 is fixedly connected to the left wall inside the mounting groove 2. The function of the motor 3 is to control the rotation of the bidirectional screw rod 4 and drive the adjustment plate 5 to move left and right. This design can tighten or loosen the cable according to the use requirements, and can be adjusted according to the length of different cables, so that the device has a larger operating space. The output end of the motor 3 is fixedly connected to the bidirectional screw rod 4, and the end of the bidirectional screw rod 4 away from the motor 3 is rotatably connected to the right wall inside the mounting groove 2. An adjusting plate 5 is symmetrically arranged on the upper side of the testing platform 1 for controlling the distance to match cables of different lengths. The adjusting plate 5 is movably sleeved on the outer side of the bidirectional screw rod 4. The upper side of the testing platform 1 is symmetrically connected with side plates 6. The adjusting plate 5 is located on opposite sides of the two side plates 6. The opposite sides of the two side plates 6 are symmetrically connected with guide rods 7 front and back for assisting the movement of the adjusting plate 5. The guide rod 7 passes through the adjusting plate 5. A threaded rod 8 is screwed on the upper side of the adjusting plate 5. A fixing knob 9 is fixedly connected to the upper side of the threaded rod 8. Clamping grooves are arranged on the left and right sides of the adjusting plate 5, and a clamping portion 10 is fixedly arranged on the inner side of the clamping groove.

[0023] Among them, the opposite side of the adjustment plate 5 is fixedly connected with a support plate 11, the upper side of the support plate 11 is fixedly connected with an electric push rod 12, the upper side of the electric push rod 12 is fixedly connected with a bending block 13, and the left and right sides of the bending block 13 are penetrated with bending holes 14. The clamping part 10 includes a pressing block 15, a bevel groove 16, a bevel 17, a spring 18, a limit block 19, and a clamping bayonet 20. The clamping bayonet 20 can clamp the cable. This design can adapt to cables of different sizes, making the clamping stable. The limit block 19 allows the upper end of the bevel 17 to just The upper side of the pressing block 15 corresponds to the lower end of the threaded rod 8. The left and right side walls of the inner side of the clamping groove are provided with sliding grooves. The outer ends of the pressing block 15 are slidably connected with the sliding grooves. The inclined groove 16 is provided on the lower side of the pressing block 15. The bottom of the inner side of the clamping groove is symmetrically provided with spring grooves. The inclined surface 17 is symmetrically arranged at the bottom of the inner side of the clamping groove. The inclined surface 17 is slidably connected with the spring groove. The spring 18 is fixedly connected to the opposite side of the inclined surface 17 and the spring groove. When the cable is released, the spring 18 pulls the inclined surface 17 to reset, and the pressing block 15 is The block 15 is lifted up and slides back to its original position along the slide groove. The limit block 19 is fixedly arranged on the opposite side of the inclined surface 17. The inclined surface groove 16 corresponds to the inclined surface 17. The upper side of the detection platform 1 is fixedly connected with an electromagnetic relay 21, an alarm 22, and a controller 23. The external power supply is connected to the electromagnetic relay 21. The model of the electromagnetic relay 21 is HH52P. The moving contact of the electromagnetic relay 21 is electrically connected to the motor 3, the electric push rod 12, the controller 23 and the cable. The static contact of the electromagnetic relay 21 is electrically connected to the alarm 22. The electromagnetic relay 21 is connected to the electromagnetic relay 21. After 21 is connected to the power supply, the coil of the electromagnet inside it generates a magnetic field, exerts a gravitational force on the armature, so that the armature is connected to the moving contact, and the motor 3, the controller 23 and the electric push rod 12 are powered. When it is bent to a certain extent, the cable breaks, the power is interrupted, the motor 3 and the electric push rod 12 are powered off and stop working. At this time, the magnetic field of the coil disappears and loses its gravitational force, so that the armature is connected to the static contact, and the power supply supplies power to the alarm 22, which alarms the outside world. This design does not require staff to observe all the time, freeing up manpower and improving work efficiency.

[0024] Working principle: When the device is in use, the cable is passed through the clamping groove set in the right adjustment plate 5, and then through the inner sides of the left and right bending holes 14, and finally out of the clamping groove set in the left adjustment plate 5, and then the left and right fixing knobs 9 are rotated to make the two threaded rods 8 move downward, and the lower ends of the threaded rods 8 press the pressure block 15 to move downward, and the pressure block 15 moves downward along the slide groove. Due to the restriction of the limit block 19, the upper end of the inclined surface 17 can just fit into the inclined surface groove 16 of the pressure block 15, and as the pressure block 15 moves downward, the inclined surfaces 17 move toward each other, so that the clamping bayonet 20 clamps the cable and gradually tightens. This design can adapt to cables of different sizes and makes the clamping stable, and the function of the motor 3 is to control the rotation of the bidirectional screw rod 4, drive the adjustment plate 5 to move left and right, and then connect the external power supply to the electromagnetic relay 21, and the moving contact of the electromagnetic relay 21 It is electrically connected to the motor 3, the electric push rod 12, the controller 23 and the cable, and the static contact of the electromagnetic relay 21 is electrically connected to the alarm 22. After the electromagnetic relay 21 is connected to the power supply, the coil of the electromagnet inside it generates a magnetic field, exerts an attractive force on the armature, so that the armature is connected to the moving contact, and the motor 3, the controller 23 and the electric push rod 12 are powered. At this time, the controller 23 is operated to start the motor 3, and the adjustment plate 5 moves left and right to adjust the distance. Then the electric push rod 12 is started, so that the two electric push rods 12 are alternately extended and retracted through the telescopic ends, driving the bending holes 14 to move up and down alternately, and the cable is bent. When it is bent to a certain extent, the cable breaks, the power supply is interrupted, and the motor 3 and the electric push rod 12 are powered off and stop working. At this time, the magnetic field of the coil disappears and loses its attractive force, so that the armature is connected to the static contact, and the power supply supplies power to the alarm 22, which issues an alarm warning to the outside world.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0026] 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 bending resistance testing device, comprising a testing platform (1), characterized in that: The upper side of the detection platform (1) is provided with a mounting groove (2), the left side wall inside the mounting groove (2) is fixedly connected to a motor (3), the output end of the motor (3) is fixedly connected to a bidirectional screw rod (4), the end of the bidirectional screw rod (4) away from the motor (3) is rotatably connected to the right side wall inside the mounting groove (2), the upper side of the detection platform (1) is symmetrically provided with an adjustment plate (5), the adjustment plate (5) is movably sleeved on the outer side of the bidirectional screw rod (4), and the upper side of the detection platform (1) is provided with a plurality of adjustment plates (5). The side plates (6) are symmetrically connected to the sides, the adjustment plate (5) is located on the opposite sides of the two side plates (6), the opposite sides of the two side plates (6) are symmetrically connected to the guide rods (7) front and back, the guide rods (7) pass through the adjustment plate (5), the upper side of the adjustment plate (5) is screwed with a threaded rod (8), the upper side of the threaded rod (8) is fixedly connected with a fixing knob (9), the left and right sides of the adjustment plate (5) are penetrated by clamping grooves, and the inner side of the clamping grooves is fixedly provided with a clamping portion (10).

2. A cable bending resistance detection device according to claim 1, characterized in that: A support plate (11) is fixedly connected to the opposite side of the adjustment plate (5), an electric push rod (12) is fixedly connected to the upper side of the support plate (11), a bending block (13) is fixedly connected to the upper side of the electric push rod (12), and bending holes (14) are formed through the left and right sides of the bending block (13).

3. A cable bending resistance detection device according to claim 1, characterized in that: The clamping portion (10) comprises a pressing block (15), a slope groove (16), a slope (17), a spring (18), a limit block (19), and a clamping bayonet (20); the upper side of the pressing block (15) corresponds to the lower end of the threaded rod (8).

4. A cable bending resistance detection device according to claim 3, characterized in that: The left and right side walls inside the clamping groove are both provided with sliding grooves, the two outer ends of the pressing block (15) are slidably connected to the sliding grooves, and the inclined groove (16) is provided on the lower side of the pressing block (15).

5. A cable bending resistance detection device according to claim 3, characterized in that: A spring groove is symmetrically provided at the bottom of the inner side of the clamping groove, the inclined surface (17) is symmetrically arranged at the bottom of the inner side of the clamping groove, the inclined surface (17) is slidably connected to the spring groove, the spring (18) is fixedly connected to the opposite side of the inclined surface (17) and the spring groove, the limit block (19) is fixedly arranged on the opposite side of the inclined surface (17), and the inclined surface groove (16) corresponds to the inclined surface (17).

6. A cable bending resistance detection device according to claim 1, characterized in that: An electromagnetic relay (21), an alarm (22), and a controller (23) are fixedly connected to the upper side of the detection platform (1).

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