Device for detecting tensile strength of overhead insulated cable

Abstract

The utility model relates to the technical field of cable strength detection, in particular to an overhead insulated cable tensile strength detection device which comprises a working platform, a first fixing plate is fixedly arranged at one end above the working platform, and a second fixing plate is fixedly arranged at the other end above the working platform. Sliding rods are fixedly connected to the side faces of the first fixing plate and the second fixing plate, a limiting ring is slidably arranged at one end of the surface of each sliding rod, a sliding block is slidably arranged at the other end of each sliding rod, a main inserting plate is fixedly connected to the side face of each sliding block, an inserting groove is formed in one side of each main inserting plate, and a fixing groove is formed in the other side of each main inserting plate; through the design of the adjustable plug board and the annular clamping board, the device can easily adapt to cables with different diameters and numbers, the universality and flexibility of testing are improved, multiple sets of configuration of the plug board allow a plurality of cables to be tested at the same time, and the testing efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable strength detection, in particular to a tensile strength detection device for overhead insulated cables. Background Art

[0002] In a broad sense, wires and cables are also simply referred to as cables. In a narrow sense, a cable refers to an insulated cable, which can be defined as a collective body composed of the following parts: one or more insulated wire cores, and their respective possible coating layers, general protective layers and outer protective layers. A cable can also have additional uninsulated conductors. Among them, cross-linked polyethylene insulated power cables are one type of cables, which have excellent heat resistance, insulation, mechanical and chemical resistance properties and are widely used in the fields of electric power, communication, chemical industry, etc.

[0003] However, the applicant has found that the prior art has at least the following problems: Some existing detection devices for cable tensile strength lack flexibility and cannot detect multiple groups of cables. This design limits the efficiency of the detection device and cannot meet the need to detect multiple cables simultaneously. Moreover, some detection devices have limited adaptability to cable diameter and length and cannot be easily adjusted to adapt to multiple groups of cables with different specifications, which increases the time cost of replacing cables or adjusting the device and reduces the test efficiency. Summary of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide a tensile strength detection device for overhead insulated cables to solve the problem of lack of flexibility of the detection device.

[0005] Based on the above purpose, the present utility model provides a tensile strength detection device for overhead insulated cables, including: a working platform, a first fixing plate is fixedly arranged at one end above the working platform, a second fixing plate is fixedly arranged at the other end above the working platform, a sliding rod is fixedly connected to the sides of the first fixing plate and the second fixing plate, a limiting ring is slidably arranged at one end of the surface of the sliding rod, a slider is slidably arranged at the other end of the sliding rod, a total insertion plate is fixedly connected to the side of the slider, a slot is opened on one side of the total insertion plate, a fixing groove is opened on the other side of the total insertion plate, an insertion plate is inserted into the inner side of the slot, an insertion plate fixing bolt is screwed on one side of the insertion plate, a support plate is fixedly connected above the insertion plate, a spring rod connecting plate is fixedly connected above the support plate, a spring rod is fixedly connected to the side of the spring rod connecting plate, an annular clamping plate is fixedly connected to the side of the spring rod, a rubber gasket is fixedly arranged inside the annular clamping plate, a docking plate is fixedly arranged above the annular clamping plate, and a docking plate fixing bolt is screwed on the side of the docking plate.

[0006] Optionally, a clamping plate is clamped on one side of the total plug board. A connecting rod is fixedly connected to the side surface of the clamping plate. A cross plate is fixedly connected to the side surface of the connecting rod. A hydraulic rod is fixedly connected to the side surface of the cross plate. A tension control device is fixedly connected to the side surface of the hydraulic rod. A tension display screen is fixedly arranged on one side of the tension control device. The tension control device is fixedly arranged at the other end above the working platform.

[0007] Optionally, a lower pressing plate is fixedly arranged at the other end above the working platform. A moving rod is fixedly arranged above the lower pressing plate. An upper pressing plate is slidably arranged above the moving rod. A cylinder is fixedly connected above the upper pressing plate. Pressure wire grooves are formed on the side surfaces of the lower pressing plate and the upper pressing plate.

[0008] Optionally, the total plug board moves and slides on the side surface of the sliding rod through the slider. A slot is formed above the total plug board. Fixed slots are formed on the front and rear sides of the total plug board. The plug fixing bolt passes through the fixed slot and is fixedly screwed with the plug, so that the plug is fixed in the total plug board. Multiple groups of plugs can be inserted into the total plug board.

[0009] Optionally, the annular clamping plate is divided into left and right sides. The annular clamping plate can adapt to cables of different sizes through the spring rod. The rubber gasket can slow down the abrasion of the cable skin. The annular clamping plates are fixedly screwed together through the docking plate fixing bolts and two groups of docking plates.

[0010] Optionally, the tension control device drives the hydraulic rod to drive the clamping plate to drive the total plug board to move. The tension display screen can display the current tension strength value.

[0011] Optionally, the pressure wire groove formed above the lower pressing plate can place the cable. The upper pressing plate is pushed downward by the cylinder to fix the cable, preventing the fixed end of the cable from loosening when the cable is pulled.

[0012] Advantages of the present utility model:

[0013] 1. Through the design of adjustable plug boards and annular clamping plates, the device can easily adapt to cables with different diameters and quantities, improving the versatility and flexibility of the test. The multi-group configuration of the plug boards allows multiple cables to be tested simultaneously, significantly improving the test efficiency.

[0014] 2. The combined use of the lower pressing plate, the upper pressing plate and the cylinder ensures the stable fixation of the cable during the test, effectively preventing the cable from slipping or loosening during the test, thus ensuring the accuracy of the test results. The tension strength value displayed in real time by the tension display screen enables the operator to monitor the test process in real time and record data in a timely manner. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of a tensile strength detection device for an overhead insulated cable according to an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the main plug board in a tensile strength detection device for an overhead insulated cable according to an embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the annular clamping plate in a tensile strength detection device for an overhead insulated cable according to an embodiment of the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of the tensile force control device in a tensile strength detection device for an overhead insulated cable according to an embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the pressing plate in a tensile strength detection device for an overhead insulated cable according to an embodiment of the present invention.

[0021] The labels in the figure are:

[0022] 1. Working platform; 2. First fixing plate; 3. Second fixing plate; 4. Slide bar; 5. Limit ring; 6. Slide block; 7. Main plug board; 8. Slot; 9. Fixed slot; 10. Plug board; 11. Plug board fixing bolt; 12. Support plate; 13. Spring rod connecting plate; 14. Spring rod; 15. Annular clamping plate; 16. Rubber gasket; 17. Docking plate; 18. Docking plate fixing bolt; 19. Clamping plate; 20. Connecting rod; 21. Cross plate; 22. Hydraulic rod; 23. Tensile force control device; 24. Tensile force display screen; 25. Lower pressing plate; 26. Moving rod; 27. Upper pressing plate; 28. Cylinder; 29. Pressing wire groove. Specific embodiments

[0023] In order to make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the following further elaborates on the present invention in combination with specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in this utility model should have the ordinary meanings understood by those with general skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0025] As Figure 1 As shown in the figures, a tensile strength detection device for an overhead insulated cable provided by a specific embodiment of this utility model includes a working platform 1. At one end above the working platform 1, a first fixing plate 2 is fixedly arranged. At the other end above the working platform 1, a second fixing plate 3 is fixedly arranged. A sliding rod 4 is fixedly connected to the sides of the first fixing plate 2 and the second fixing plate 3. A limiting ring 5 is slidably arranged at one end of the surface of the sliding rod 4. A slider 6 is slidably arranged at the other end of the sliding rod 4. A total insertion plate 7 is fixedly connected to the side of the slider 6. A slot 8 is opened on one side of the total insertion plate 7. A fixing groove 9 is opened on the other side of the total insertion plate 7. An insertion plate 10 is inserted into the inner side of the slot 8. An insertion plate fixing bolt 11 is screwed on one side of the insertion plate 10. A support plate 12 is fixedly connected above the insertion plate 10. A spring rod connecting plate 13 is fixedly connected above the support plate 12. A spring rod 14 is fixedly connected to the side of the spring rod connecting plate 13. An annular clamping plate 15 is fixedly connected to the side of the spring rod 14. A rubber gasket 16 is fixedly arranged inside the annular clamping plate 15. A docking plate 17 is fixedly arranged above the annular clamping plate 15. A docking plate fixing bolt 18 is screwed on the side of the docking plate 17.

[0026] By selecting a suitable insertion plate 10 and inserting it into the slot 8 of the total insertion plate 7, the insertion plate 10 is fixed in the fixing groove 9 of the total insertion plate 7 through the insertion plate fixing bolt 11. Multiple groups of insertion plates 10 can be inserted as needed to adapt to cables of different sizes or to test multiple cables simultaneously. The other end of the cable is fixed between the annular clamping plates 15.

[0027] In some optional specific embodiments, such as Figure 1 and Figure 4As shown, a clamping plate 19 is clamped on one side of the main plug board 7. A connecting rod 20 is fixedly connected to the side of the clamping plate 19. A cross plate 21 is fixedly connected to the side of the connecting rod 20. A hydraulic rod 22 is fixedly connected to the side of the cross plate 21. A tension control device 23 is fixedly connected to the side of the hydraulic rod 22. A tension display screen 24 is fixedly arranged on one side of the tension control device 23. The tension control device 23 is fixedly arranged at the other end above the working platform 1.

[0028] Start the tension control device 23. The tension control device 23 drives the hydraulic rod 22 to move the cross plate 21 and the connecting rod 20, thereby driving the clamping plate 19 and the main plug board 7 to slide along the sliding rod 4. Since the main plug board 7 is connected to the annular clamping plate 15, the cable is subjected to a tensile force.

[0029] In some optional specific embodiments, such as Figure 1 and Figure 5 As shown, a lower pressing plate 25 is fixedly arranged at the other end above the working platform 1. A moving rod 26 is fixedly arranged above the lower pressing plate 25. An upper pressing plate 27 is slidably arranged above the moving rod 26. A cylinder 28 is fixedly connected above the upper pressing plate 27. Pressure wire grooves 29 are provided on the sides of the lower pressing plate 25 and the upper pressing plate 27.

[0030] One end of the cable is placed in the pressure wire groove 29 above the fixedly arranged lower pressing plate 25. By moving the upper pressing plate 27 and driving it to move downward by using the cylinder 28, the cable is fixed.

[0031] In some optional specific embodiments, such as Figures 1 to 2 As shown in the figure, the main plug board 7 slides on the side of the sliding rod 4 through a slider 6. A slot 8 is provided above the main plug board 7. Fixing grooves 9 are provided on the front and back sides of the main plug board 7. A plug fixing bolt 11 passes through the fixing groove 9 and is fixedly screwed to the plug 10, so that the plug 10 is fixed in the main plug board 7. Multiple groups of plugs 10 can be inserted into the main plug board 7.

[0032] The plug 10 is firmly fixed in the fixing groove 9 of the main plug board 7 through the plug fixing bolt 11. This design not only provides high flexibility, allowing the fixing position and quantity of the cable to be adjusted according to needs, but also ensures the stability and safety of the cable during the test.

[0033] In some optional specific embodiments, such as Figure 3 As shown, the annular clamping plate 15 is divided into left and right sides. The annular clamping plate 15 can adapt to cables of different sizes through spring rods 14. Rubber gaskets 16 can reduce the wear of the cable skin. The annular clamping plates 15 are fixedly screwed together through docking plate fixing bolts 18 and two groups of docking plates 17.

[0034] The two sets of annular clamping plates 15 are fixed together by a docking plate 17 and docking plate fixing bolts 18 to ensure that the cable will not slip off during the test.

[0035] In some optional specific embodiments, such as Figure 4 shown, the tension control device 23 drives the clamping plate 19 to drive the total plug board 7 to move by driving the hydraulic rod 22, and the tension display screen 24 can display the current tension strength value.

[0036] The tension control device 23 displays the current tension strength value in real time through the tension display screen 24, so that the operator can monitor the test process and record data. When the cable reaches the predetermined tensile strength or breaks, the tension control device 23 will stop applying tension, and the tensile performance of the cable can be evaluated through data recording.

[0037] In some optional specific embodiments, such as Figure 5 shown, the cable groove 29 opened above the lower pressing plate 25 can place the cable, and the upper pressing plate 27 is pushed downward by the air cylinder 28 to fix the cable, preventing the fixed end of the cable from loosening when the cable is pulled.

[0038] The cable groove 29 provides a stable placement position for the cable to ensure that the cable will not affect the test results due to position deviation during the test. Under the precise control of the air cylinder 28, the upper pressing plate 27 can apply appropriate pressure to fix the cable in the cable groove 29, effectively preventing the cable from loosening or slipping off when subjected to tension.

[0039] Working principle of the utility model: First, place the power cable to be detected on the working platform 1 of the device. One end of the cable is placed in the pressure groove 29 above the fixedly arranged lower pressing plate 25. Move the upper pressing plate 27 and drive it downward by using the cylinder 28 to fix the other end of the cable between the lower pressing plate 25 and the upper pressing plate 27, ensuring that the cable will not loosen due to pulling during the test. Next, select a suitable plug board 10 according to the diameter and quantity of the cable and insert it into the slot 8 of the main plug board 7. The plug board 10 is fixed in the fixing groove 9 of the main plug board 7 through the plug board fixing bolt 11. Multiple groups of plug boards 10 can be inserted as needed to adapt to cables of different sizes or to test multiple cables simultaneously. The other end of the cable is fixed between the annular clamping plates 15. The annular clamping plates 15 are divided into left and right sides and are connected by spring rods 14 so that they can adapt to cables of different sizes. The setting of the rubber gasket 16 can slow down the wear of the cable skin during the test. The two groups of annular clamping plates 15 are fixed together through the docking plate 17 and the docking plate fixing bolt 18 to ensure that the cable will not slip off during the test. After the cable is fixed, start the tension control device 23. The tension control device 23 drives the hydraulic rod 22 to move the cross plate 21 and the connecting rod 20, and then drives the clamping plate 19 and the main plug board 7 to slide along the sliding rod 4. Since the main plug board 7 is connected to the annular clamping plate 15, the cable is subjected to a tensile force. During the test, the tension control device 23 displays the current tensile strength value in real time through the tension display screen 24, so that the operator can monitor the test process and record data. When the cable reaches the predetermined tensile strength or breaks, the tension control device 23 will stop applying the tensile force, and the tensile performance of the cable can be evaluated through data recording.

[0040] Those of ordinary skill in the art should understand that any discussion of the above embodiments is merely exemplary and is not intended to imply that the scope of the utility model (including the claims) is limited to these examples; under the idea of the utility model, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the utility model as described above, which are not provided in detail for the sake of brevity.

[0041] The utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. An overhead insulated cable tensile strength detection device, characterized in that, Including: A working platform (1) and a first fixing plate (2), wherein a first fixing plate (2) is fixedly arranged at one end above the working platform (1). A second fixing plate (3), and the second fixing plate (3) is fixedly arranged at the other end above the working platform (1). A slide bar (4), and the slide bar (4) is fixedly connected to the sides of the first fixing plate (2) and the second fixing plate (3). A limit ring (5) and a slider (6), and the limit ring (5) and the slider (6) are slidably arranged at both ends of the surface of the slide bar (4). A total plug board (7), and the total plug board (7) is fixedly connected to the side of the slider (6). A slot (8) and a fixing groove (9), and the slot (8) and the fixing groove (9) are opened on both sides of the total plug board (7). A plug board (10), and the plug board (10) is inserted inside the slot (8). A plug board fixing bolt (11) and a support plate (12), the plug board fixing bolt (11) is screwed on one side of the plug board (10), and the support plate (12) is fixedly connected above the plug board (10). A spring rod connecting plate (13), a spring rod (14), an annular clamping plate (15), a rubber washer (16), a docking plate (17) and a docking plate fixing bolt (18), the spring rod connecting plate (13) is fixedly connected above the support plate (12), the spring rod (14) is fixedly connected to the side of the spring rod connecting plate (13), the annular clamping plate (15) is fixedly connected to the side of the spring rod (14), the rubber washer (16) is fixedly arranged inside the annular clamping plate (15), the docking plate (17) is fixedly arranged above the annular clamping plate (15), and the docking plate fixing bolt (18) is screwed on the side of the docking plate (17).

2. The tensile strength detection device for an overhead insulated cable according to claim 1, characterized in that, Also including: A clamping plate (19), a connecting rod (20), a cross plate (21), a hydraulic rod (22), a tension control device (23) and a tension display screen (24), the clamping plate (19) is clamped on one side of the total plug board (7), the connecting rod (20) is fixedly connected to the side of the clamping plate (19), the cross plate (21) is fixedly connected to the side of the connecting rod (20), the hydraulic rod (22) is fixedly connected to the side of the cross plate (21), the tension control device (23) is fixedly connected to the side of the hydraulic rod (22), the tension display screen (24) is fixedly arranged on one side of the tension control device (23), and the tension control device (23) is fixedly arranged at the other end above the working platform (1).

3. The tensile strength detection device for an overhead insulated cable according to claim 1, wherein, Also including: A lower pressing plate (25), a moving rod (26), an upper pressing plate (27), a cylinder (28) and a pressure wire groove (29), the lower pressing plate (25) is fixedly arranged at the other end above the working platform (1), the moving rod (26) is fixedly arranged above the lower pressing plate (25), the upper pressing plate (27) is slidably arranged above the moving rod (26), the cylinder (28) is fixedly connected above the upper pressing plate (27), and the pressure wire groove (29) is opened on the sides of the lower pressing plate (25) and the upper pressing plate (27).

4. The tensile strength detection device for an overhead insulated cable according to claim 1, characterized in that, The total plug board (7) slides on the side of the slide bar (4) through the movement of the slider (6). The slot (8) is provided above the total plug board (7), and the fixing grooves (9) are provided on the front and rear sides of the total plug board (7). The plug board fixing bolt (11) passes through the fixing groove (9) and is fixedly screwed with the plug board (10), so that the plug board (10) is fixed in the total plug board (7). Multiple groups of the plug boards (10) can be inserted into the total plug board (7).

5. The tensile strength detection device for an overhead insulated cable according to claim 1, wherein The annular clamping plate (15) is divided into left and right sides. The annular clamping plate (15) can adapt to cables of different sizes through the spring rod (14). The rubber gasket (16) can slow down the wear of the cable skin. The annular clamping plates (15) are fixedly screwed together through the docking plate fixing bolt (18) and two groups of the docking plates (17).

6. The tensile strength detection device for an overhead insulated cable according to claim 2, characterized in that, The tension control device (23) drives the hydraulic rod (22) to move the clamping plate (19) to drive the total plug board (7) to move. The tension display screen (24) can display the current tension strength value.

7. An overhead insulated cable tensile strength detection device according to claim 3, characterized in that, The cable groove (29) provided above the lower pressing plate (25) can place the cable. The upper pressing plate (27) is pushed downward by the cylinder (28) to fix the cable, preventing the fixed end of the cable from loosening when the cable is pulled.

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