A sheath strength testing device for electrical wires and cables

Abstract

The utility model discloses a kind of outer skin strength detection devices for electric wire and cable, it is related to testing technical field, including detection table, the top of detection table is fixedly connected with support plate, lifting groove is established in the side of support plate, rotatingly installed with threaded rod in the inside of lifting groove, the outer surface of threaded rod is threadedly sleeved with pressing plate, the outer surface of pressing plate is slidably connected with the inner wall of lifting groove, the bottom of pressing plate is fixedly connected with puncture detection cutter, the top of detection table is fixedly connected with fixed frame, the top of fixed frame is provided with positioning assembly, by one end of electric wire and cable is firmly fixed in fixed sleeve, then when driving motor drives fixed sleeve to rotate, electric wire and cable will also rotate, after puncture detection cutter punctures, cable electric wire can automatically overturn, to carry out puncture detection to the different surface positions of cable, to facilitate comprehensive assessment the uniformity of electric wire and cable outer skin strength, further improve the practicability of the detection device.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to a device for testing the strength of the outer sheath of wires and cables. Background Technology

[0002] In the context of the booming development of the power and communications industries, wires and cables, as key carriers of energy and information transmission, directly affect the stability and safety of system operation due to their quality. The outer sheath of wires and cables, as the primary protective barrier for the internal conductors and insulation layers, must not only withstand physical friction, compression, and puncture, but also endure complex factors such as chemical corrosion and environmental temperature changes. Therefore, accurate and comprehensive testing of the outer sheath strength has become a core element in ensuring the quality of wire and cable products and guaranteeing their reliable operation.

[0003] Existing testing devices typically employ traditional puncture tests when assessing cable sheath strength. However, before conducting the puncture test, the cable must be positioned below the puncture tool to facilitate penetration. In some conventional puncture tests, puncture is performed only at a specific location on the cable. This method of puncturing only one point does not adequately reflect the overall quality of the cable. Furthermore, it makes it difficult to automatically flip the cable after puncture, hindering puncture tests on different locations of the cable sheath and thus making it difficult to comprehensively assess the uniformity of cable strength. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a device for testing the outer sheath strength of wires and cables, which can solve the problem that it is inconvenient to automatically flip the cable after puncture, and thus inconvenient to conduct puncture tests on the outer sheath of the cable at different locations.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a testing device for the outer sheath strength of wires and cables, comprising a testing platform, a support plate fixedly connected to the top of the testing platform, a lifting groove provided on one side of the support plate, a threaded rod rotatably installed inside the lifting groove, a pressure plate threadedly sleeved on the outer surface of the threaded rod, the outer surface of the pressure plate slidably connected to the inner wall of the lifting groove, a puncture detection tool fixedly connected to the bottom end of the pressure plate, a fixing frame fixedly connected to the top of the testing platform, a positioning component provided on the top of the fixing frame, the positioning component comprising a fixing block, a semi-circular placement groove provided at the top of the fixing block, limit sliding grooves provided on both sides of the inner wall of the semi-circular placement groove, limit moving blocks slidably connected to the inner walls of the two limit sliding grooves, the opposite ends of the two limit moving blocks being triangular and in contact with each other, pressure springs fixedly connected to the opposite ends of the two limit moving blocks, the opposite ends of the two pressure springs being fixedly connected to the inner walls of the corresponding limit sliding grooves respectively.

[0006] Preferably, there are two positioning components, both of which have the same structure and are respectively arranged on both sides of the fixing frame.

[0007] Preferably, a semi-circular placement plate is fixedly installed at the top of the fixing frame, the semi-circular placement plate being located between the two fixing blocks and simultaneously below the puncture detection tool.

[0008] Preferably, a fixing plate is fixedly connected to the top of the testing platform, a servo motor is fixedly connected to one side of the fixing plate, and a fixing sleeve is fixedly connected to the output end of the servo motor.

[0009] Preferably, the fixing sleeve is located on one side of the two semi-circular placement slots, and the outer surface of the fixing sleeve is provided with a threaded groove.

[0010] Preferably, the interior of the threaded groove is connected to the interior of the fixed sleeve, and a fixed screw is threadedly connected to the interior of the threaded groove.

[0011] Preferably, a drive motor is fixedly connected to the top of the support plate, and the output end of the drive motor rotates through the interior of the lifting groove and is fixedly connected to the top of the threaded rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The cable sheath strength testing device securely fixes one end of the cable inside a fixed sleeve. When the drive motor rotates the fixed sleeve, the cable also rotates. After the puncture test tool punctures the cable, the cable can automatically flip over, thereby performing puncture tests on different surface positions of the cable. This facilitates a comprehensive assessment of the uniformity of the cable sheath strength and further improves the practicality of the testing device. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of a wire and cable sheath strength testing device according to the present invention; Figure 2 This is a schematic diagram of the fixing block structure of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of point A in the image; Figure 4 This is a schematic diagram of the fixed sleeve structure of this utility model.

[0014] Reference numerals in the attached diagram: 1. Testing table; 2. Support plate; 3. Lifting groove; 4. Threaded rod; 5. Pressure plate; 6. Drive motor; 7. Puncture detection tool; 8. Fixing frame; 9. Fixing block; 10. Semicircular placement plate; 11. Semicircular placement groove; 12. Limiting slide groove; 13. Limiting moving block; 14. Pressure spring; 15. Fixing plate; 16. Drive motor; 17. Fixing sleeve; 18. Threaded groove; 19. Fixing screw. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0018] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0019] Please see Figure 1-4This utility model provides a technical solution: a device for testing the outer sheath strength of wires and cables, including a testing platform 1, a support plate 2 fixedly connected to the top of the testing platform 1, a lifting groove 3 opened on one side of the support plate 2, a threaded rod 4 rotatably installed inside the lifting groove 3, a pressure plate 5 threadedly sleeved on the outer surface of the threaded rod 4, the outer surface of the pressure plate 5 slidably connected to the inner wall of the lifting groove 3, a puncture detection knife 7 fixedly connected to the bottom end of the pressure plate 5, a fixing frame 8 fixedly connected to the top of the testing platform 1, a positioning component provided on the top of the fixing frame 8, the positioning component including a fixing block 9, a semi-circular placement groove 11 opened on the top of the fixing block 9, a limiting slide groove 12 opened on both sides of the inner wall of the semi-circular placement groove 11, a limiting moving block 13 slidably connected to the inner wall of the two limiting slide grooves 12, the opposite ends of the two limiting moving blocks 13 are triangular and in contact with each other, a pressure spring 14 fixedly connected to the opposite ends of the two limiting moving blocks 13, and the opposite ends of the two pressure springs 14 are respectively fixedly connected to the inner wall of the corresponding limiting slide groove 12.

[0020] Furthermore, there are two positioning components, both of which have the same structure and are respectively positioned on both sides of the fixing frame 8.

[0021] Furthermore, a semi-circular placement plate 10 is fixedly installed on the top of the fixing frame 8. The semi-circular placement plate 10 is located between the two fixing blocks 9 and simultaneously below the puncture detection blade 7.

[0022] Furthermore, a fixing plate 15 is fixedly connected to the top of the testing platform 1, a servo motor 16 is fixedly connected to one side of the fixing plate 15, a fixing sleeve 17 is fixedly connected to the output end of the servo motor 16, the fixing sleeve 17 is located on one side of the two semi-circular placement slots 11, a threaded groove 18 is opened on the outer surface of the fixing sleeve 17, the inside of the threaded groove 18 is connected to the inside of the fixing sleeve 17, and a fixing screw 19 is threadedly connected to the inside of the threaded groove 18.

[0023] Furthermore, a drive motor 6 is fixedly connected to the top of the support plate 2, and the output end of the drive motor 6 rotates through the interior of the lifting groove 3 and is fixedly connected to the top of the threaded rod 4.

[0024] Furthermore, firstly, the wires and cables to be tested are placed on the positioning components at the top of the fixing frame 8. Since there are two positioning components and they are respectively set on both sides of the fixing frame 8, they can provide good support and positioning for the wires and cables.

[0025] Furthermore, in specific operation, the wire and cable are pressed down and placed in the semi-circular placement groove 11 at the top of the fixed block 9. When the wire and cable are placed in the semi-circular placement groove 11, they will squeeze the triangular opposite ends of the two limiting moving blocks 13. Then the two limiting moving blocks will move to both sides, and then the two pressure springs 14 will be compressed. Then, when the wire and cable are completely inside the semi-circular placement groove 11, the two limiting moving blocks 13 will contact each other again, so that the wire and cable can be easily positioned inside the two semi-circular placement grooves 11, while preventing the wire and cable from accidentally slipping out of the semi-circular placement grooves 11. At the same time, the semi-circular placement plate 10 provides auxiliary support for the wire and cable between the two fixed blocks 9.

[0026] Furthermore, the drive motor 6 at the top of the support plate 2 is started. When the drive motor 6 is running, it drives the threaded rod 4 to rotate in the lifting groove 3. Since the outer surface of the threaded rod 4 is threaded with a pressure plate 5, and the outer surface of the pressure plate 5 is slidably connected to the inner wall of the lifting groove 3, the pressure plate 5 will move up and down along the inner wall of the lifting groove 3 when the threaded rod 4 rotates. The bottom end of the pressure plate 5 is fixedly connected to the puncture detection tool 7. Therefore, the lifting and lowering of the pressure plate 5 drives the puncture detection tool 7 to lift and lower synchronously. By controlling the forward and reverse rotation and the running time of the drive motor 6, the descent speed and depth of the puncture detection tool 7 can be precisely adjusted to meet different testing requirements for the outer strength of wire and cable sheaths.

[0027] Furthermore, one end of the wire / cable is then placed into the fixing sleeve 17, and a fixing screw 19 is screwed in through the threaded groove 18, which communicates with the inside of the fixing sleeve 17. The fixing screw 19 abuts against the wire / cable, thereby firmly fixing one end of the wire / cable inside the fixing sleeve 17. Then, when the servo motor 16 drives the fixing sleeve 17 to rotate, the wire / cable will also rotate. After the puncture detection tool 7 punctures the wire / cable, it can automatically flip over, thereby performing puncture detection on different surface positions of the cable. This facilitates a comprehensive evaluation of the uniformity of the wire / cable sheath strength, further improving the practicality of the detection device.

[0028] Structural Description: Testing stand 1: Provides support and installation foundation for the entire testing device, ensuring that all components can work stably.

[0029] Support plate 2: It is fixedly connected to the top of the testing table 1. The lifting groove 3 on one side is used to install the threaded rod 4 and the pressure plate 5, providing guidance and support for the lifting movement of the puncture testing tool 7.

[0030] Lifting groove 3: It is opened on one side of the support plate 2, and the threaded rod 4 is rotatably installed inside it. At the same time, it provides a track for the up and down sliding of the pressure plate 5, ensuring the stability of the movement of the pressure plate 5.

[0031] Threaded rod 4: Rotatably installed inside the lifting groove 3, it converts the rotational motion of the drive motor 6 into the linear lifting motion of the pressure plate 5 through threaded connection with the pressure plate 5, thereby controlling the lifting of the puncture detection tool 7.

[0032] Pressure plate 5: Its outer surface is slidably connected to the inner wall of the lifting groove 3, and it is threaded onto the outer surface of the threaded rod 4. Its bottom end is fixedly connected to the puncture detection tool 7. When the threaded rod 4 rotates, it drives the puncture detection tool 7 to rise and fall synchronously, so as to realize the puncture operation on the outer sheath of the wire and cable.

[0033] Puncture test tool 7: Fixed at the bottom of pressure plate 5, used to puncture the outer sheath of wires and cables. The puncture is used to detect the damage and degree of breakage of the outer sheath of wires and cables, so as to determine whether the quality of the outer sheath of wires and cables meets the requirements.

[0034] Fixture 8: Fixedly connected to the top of the testing table 1, used to install positioning components and provide positioning and support for wires and cables.

[0035] Fixed block 9: A component of the positioning assembly, with a semi-circular placement groove 11 at the top for placing wires and cables and providing initial positioning support for the wires and cables.

[0036] Semicircular placement groove 11: It is opened at the top of the fixing block 9 and is adapted to the outer contour of the wire and cable, which facilitates the placement and initial positioning of the wire and cable.

[0037] Limiting groove 12: It is formed on both sides of the inner wall of the semi-circular placement groove 11 and is used to install the limiting moving block 13, providing a track for the sliding of the limiting moving block 13.

[0038] Limiting moving block 13: It is slidably connected to the inner wall of the limiting slide groove 12. The opposite ends are triangular and in contact with each other. The opposite ends are connected to the pressure spring 14. The positioning of the wire and cable is achieved by its own movement and the elastic force of the pressure spring 14.

[0039] Pressure spring 14: Connected between the opposite end of the limiting moving block 13 and the inner wall of the limiting slide groove 12, the spring spring 14 pushes the limiting moving block 13 to move in the direction of the wire and cable through the elastic force generated by the elastic deformation, thereby positioning the wire and cable.

[0040] Semicircular placement plate 10: It is fixedly installed on the top of the fixing frame 8, located between the two fixing blocks 9 and below the puncture detection knife 7, and plays an auxiliary supporting role for the wires and cables.

[0041] Fixed plate 15: Fixedly connected to the top of the testing table 1, used to install the servo motor 16 and provide fixed support for the servo motor 16.

[0042] Servo motor 16: It is fixedly connected to one side of the fixed plate 15, and its output end is fixedly connected to the fixed sleeve 17. It provides power for the rotation of the wire and cable, drives the wire and cable to rotate, and realizes the strength detection of different positions of the outer sheath of the wire and cable.

[0043] Fixed sleeve 17: Fixedly connected to the output end of servo motor 16, used to fix one end of the wire and cable, and drives the wire and cable to rotate through its own rotation. A threaded groove 18 is formed on its outer surface for mounting the fixing screw 19.

[0044] Threaded groove 18: It is formed on the outer surface of the fixed sleeve 17 and communicates with the inside of the fixed sleeve 17. It is used to connect with the fixed screw 19 by threading, and the wires and cables are fixed by tightening the fixed screw 19.

[0045] Fixed screw 19: It is threaded inside the threaded groove 18. By screwing into the threaded groove 18 and pressing against the wire and cable, one end of the wire and cable is firmly fixed in the fixed sleeve 17.

[0046] Drive motor 6: Fixedly connected to the top of support plate 2, its output end rotates through the inside of lifting groove 3 and is fixedly connected to the top of threaded rod 4, providing power for the rotation of threaded rod 4, thereby controlling the lifting and lowering of puncture detection tool 7.

[0047] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for testing the sheath strength of wires and cables, comprising a testing platform (1), characterized in that: The top of the testing platform (1) is fixedly connected to a support plate (2). A lifting groove (3) is provided on one side of the support plate (2). A threaded rod (4) is rotatably installed inside the lifting groove (3). A pressure plate (5) is threaded onto the outer surface of the threaded rod (4). The outer surface of the pressure plate (5) is slidably connected to the inner wall of the lifting groove (3). A puncture detection knife (7) is fixedly connected to the bottom end of the pressure plate (5). A fixing frame (8) is fixedly connected to the top of the testing platform (1). A positioning component is provided on the top of the fixing frame (8). The positioning component includes a fixed... The top of the fixed block (9) is provided with a semi-circular placement groove (11). Both sides of the inner wall of the semi-circular placement groove (11) are provided with limit sliding grooves (12). The inner walls of the two limit sliding grooves (12) are slidably connected to limit moving blocks (13). The opposite ends of the two limit moving blocks (13) are triangular and in contact with each other. The opposite ends of the two limit moving blocks (13) are fixedly connected to pressure springs (14). The opposite ends of the two pressure springs (14) are respectively fixedly connected to the inner walls of the corresponding limit sliding grooves (12).

2. The device for testing the outer sheath strength of wires and cables according to claim 1, characterized in that: There are two positioning components, both of which have the same structure and are respectively positioned on both sides of the fixing frame (8).

3. The device for testing the outer sheath strength of wires and cables according to claim 1, characterized in that: A semi-circular placement plate (10) is fixedly installed at the top of the fixing frame (8). The semi-circular placement plate (10) is located between the two fixing blocks (9) and below the puncture detection knife (7).

4. The device for testing the outer sheath strength of wires and cables according to claim 1, characterized in that: The top of the testing platform (1) is fixedly connected to a fixing plate (15), and a servo motor (16) is fixedly connected to one side of the fixing plate (15). A fixing sleeve (17) is fixedly connected to the output end of the servo motor (16).

5. The device for testing the outer sheath strength of wires and cables according to claim 4, characterized in that: The fixing sleeve (17) is located on one side of the two semi-circular placement slots (11), and the outer surface of the fixing sleeve (17) is provided with a threaded groove (18).

6. The device for testing the outer sheath strength of wires and cables according to claim 5, characterized in that: The interior of the threaded groove (18) is connected to the interior of the fixed sleeve (17), and the interior of the threaded groove (18) is threaded with a fixed screw (19).

7. The device for testing the outer sheath strength of wires and cables according to claim 1, characterized in that: The top of the support plate (2) is fixedly connected to a drive motor (6), and the output end of the drive motor (6) rotates through the inside of the lifting groove (3) and is fixedly connected to the top of the threaded rod (4).

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