Test cable straightening device

Abstract

The utility model discloses a test cable straightening device, which relates to the technical field of cable test auxiliary equipment and comprises a limiting seat, a height adjusting support is slidably clamped at the top of the limiting seat, a supporting table is movably connected at the top of the height adjusting support, and a straightening structure is fixed at the top of the supporting table. According to the straightening structure, a straightening groove is fixed to the top of the supporting table, the inner wall of the straightening groove is in elastic limiting connection with a clamping block through a torsional spring and a circular shaft, a curved surface lifting plate is formed at the lower end of the straightening groove, and the top of the straightening groove is connected with a clamping component through a bearing. The straightening structure is arranged and can support and straighten the test cable, so that the straight state of the test cable is kept, the two ends of the test cable are kept at specific heights, and connection loads at the two ends of the test cable caused by curling of a cable body of the test cable are prevented; risks of breakage of wiring positions of the test cable and the test equipment are reduced, and the service life of the test equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cable test auxiliary equipment, in particular to a test cable straightening device. Background Art

[0002] Power cables can be divided into low-voltage cables, medium-voltage cables, high-voltage cables and ultra-high-voltage cables according to their withstand voltage strength. The withstand voltage value of low-voltage cables is below 1KV, the withstand voltage value of medium-voltage cables is 1KV~10KV, the withstand voltage value of high-voltage cables is 10KV~35KV, and the withstand voltage value of ultra-high-voltage cables is 35KV~220KV. In the process of conducting withstand voltage tests, resistance tests and other tests on cables, since the test cable is heavier than the cable at the connection point, and the test cable often changes from a curled and rolled state to a straightened state, since the test cable has a certain toughness, after the test cable is straightened, the test cable still has a tendency to recover its deformation, resulting in excessive load at the connection between the test cable and the test equipment, and the risk of wiring breakage is prone to occur. For this reason, we propose a test cable straightening device that can reduce the load at the connection point between the test cable and the test equipment. Utility Model Content

[0003] The purpose of the utility model is to provide a test cable straightening device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a test cable straightening device, including a limit seat, the top of the limit seat is slidably clamped with a height adjustment bracket, the length of the limit seat can limit the adjustment height of the height adjustment bracket, the top of the height adjustment bracket is movably connected to a support platform, the top of the support platform is fixed with a straightening structure, the straightening structure can support and straighten the test cable, thereby maintaining the straight state of the test cable, keeping the two ends of the test cable at a specific height, preventing the test cable from curling and causing the connection load at the two ends of the test cable, reducing the risk of breakage at the connection point between the test cable and the test equipment, and improving the service life of the test equipment. The straightening structure includes a straightening groove fixed on the top of the support platform, the inner wall of the straightening groove is elastically limitedly connected to the round shaft with a clamping block through a torsion spring, the lower end of the straightening groove is formed with a curved lifting plate, and the top of the straightening groove is connected with a clamping component through a bearing.

[0005] As a further solution of the utility model: the height adjustment bracket includes a movable seat and a herringbone rod hinged to one end of the movable seat, the herringbone rod is symmetrical about the bisecting plane of the support platform, the top of the herringbone rod is movably connected to the support platform, and the distance from the lower end of the herringbone rod can be adjusted to adjust the overall height of the herringbone rod, thereby adjusting the test height of the test cable to match the wiring height of the external test equipment.

[0006] As a further solution of the utility model: a locking rod is threadedly connected to the top of the movable seat, and the locking rod is threadedly passed through the movable seat and the limit seat in turn. The top of the limit seat is provided with threaded holes with equal spacing. By setting a plurality of threaded holes, the separation distance of the lower ends of the herringbone rods can be adjusted, thereby changing the overall height of the herringbone rods, which is convenient for adapting to test equipment of different heights.

[0007] As a further solution of the utility model: the round shaft coaxially passes through the torsion spring, and the two ends of the torsion spring are passed through and fixed in the straightening groove. The straightening groove has a cavity inside, and the inner wall of the straightening groove is provided with a through hole adapted to the clamping block. The clamping block passes through the through hole into the straightening groove, and the clamping block can clamp both sides of the test cable.

[0008] As a further solution of the utility model: the curved lifting plate is a semi-cylindrical thin plate, a test cable is clamped on the top of the curved lifting plate, and the curved lifting plate can be tangentially adapted to the test cable.

[0009] As a further solution of the utility model: telescopic rods are connected to the sides of the adjacent limit seats, and the tops of the two limit seats are connected to the straightening structures through height adjustment brackets and support platforms in turn; the two adjacent straightening structures support the test cables through a curved lifting plate respectively to keep the test cables in a straightened state and avoid curling and deformation of the test cables.

[0010] As a further solution of the present invention: the clamping component includes a U-shaped rod movably connected to the bearing, a limiting tube is welded to the middle part of the U-shaped rod, the internal thread of the limiting tube is connected to a pressure rod, and a clamping plate is welded to the lower end of the pressure rod. Before the test cable is clamped with the curved lifting plate, the U-shaped rod is rotated to one side of the straightening groove with the central axis of the bearing as the center line, so as to avoid the U-shaped rod blocking the connection between the test cable and the curved lifting plate. When the test cable is adapted and clamped with the curved lifting plate, the U-shaped rod is rotated so that one end of the U-shaped rod is magnetically adapted to the magnetic baffle. The magnetic baffle can limit the U-shaped rod and maintain the installation position of the U-shaped rod. By rotating the pressure rod, the clamping plate can be driven downward by the pressure rod to clamp the top surface of the test cable to prevent the test cable from detaching from the curved lifting plate.

[0011] As a further solution of the utility model: a magnetic baffle is fixed on the top of the straightening groove, the U-shaped rod rotates around the central axis of the bearing and is magnetically connected to the magnetic baffle, and one end of the U-shaped rod can be limited by the magnetic baffle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a straightening structure, which can support and straighten the test cable, thereby keeping the test cable in a straight state, keeping both ends of the test cable at a specific height, preventing the test cable from curling and causing connection loads at both ends of the test cable, reducing the risk of breakage at the connection point between the test cable and the test equipment, and improving the service life of the test equipment.

[0014] 2. The utility model can prevent the U-shaped rod from blocking the connection between the test cable and the curved lifting plate by rotating the U-shaped rod to one side of the straightening groove. When the test cable is adapted and engaged with the curved lifting plate, the U-shaped rod is rotated to make one end of the U-shaped rod magnetically engage with the magnetic baffle. The magnetic baffle can limit the U-shaped rod to maintain the installation position of the U-shaped rod. By rotating the pressure rod, the clamping plate can be driven downward by the pressure rod to clamp the top surface of the test cable to prevent the test cable from detaching from the curved lifting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0016] Figure 2 For this utility model Figure 1 A magnified view of middle;

[0017] Figure 3 This is a diagram of the straightening structure connection structure of the utility model;

[0018] Figure 4 For this utility model Figure 3 Enlarged view of B.

[0019] In the figure: 1. Limit seat; 2. Moving seat; 3. Threaded hole; 4. Locking rod; 5. Herringbone rod; 6. Support table; 7. Straightening groove; 8. Round shaft; 9. Clamping block; 10. Curved lifting plate; 11. Bearing; 12. U-shaped rod; 13. Limit tube; 14. Pressure rod; 15. Card plate; 16. Magnetic baffle; 17. Telescopic rod; 18. Test cable; 19. Torsion spring. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 4The utility model provides a technical solution: a test cable straightening device, including a limit seat 1, the top of the limit seat 1 is slidably connected with a height adjustment bracket, and the height adjustment bracket includes a moving seat 2 and a herringbone rod 5 hinged to one end of the moving seat 2.

[0022] The length of the limit seat 1 can limit the adjustment height of the height adjustment bracket. The top of the height adjustment bracket is movably connected to a support platform 6. A straightening structure is fixed to the top of the support platform 6. The straightening structure can support and straighten the test cable 18, thereby maintaining the straight state of the test cable 18, and keeping both ends of the test cable 18 at a specific height, preventing the test cable 18 from curling and causing connection loads at both ends of the test cable 18, reducing the risk of breakage at the connection point between the test cable 18 and the test equipment, and improving the service life of the test equipment. The straightening structure includes a straightening groove 7 fixed to the top of the support platform 6, the inner wall of the straightening groove 7 is elastically limitedly connected to the round shaft 8 by a torsion spring 19, and a clamping block 9 is formed at the lower end of the straightening groove 7. The top of the straightening groove 7 is connected to a clamping component through a bearing 11.

[0023] The clamping component includes a U-shaped rod 12 movably connected to the bearing 11, a limiting tube 13 is welded to the middle part of the U-shaped rod 12, a pressure rod 14 is connected to the inner thread of the limiting tube 13, and a clamping plate 15 is welded to the lower end of the pressure rod 14. Before the test cable 18 is not clamped with the curved lifting plate 10, the U-shaped rod 12 is rotated to one side of the straightening groove 7 with the central axis of the bearing 11 as the center line, so as to avoid the U-shaped rod 12 blocking the test cable 18 and the curved lifting plate 10 The connection between them, when the test cable 18 is adapted and connected with the curved lifting plate 10, the U-shaped rod 12 is rotated to make one end of the U-shaped rod 12 magnetically adapted with the magnetic baffle 16, and the magnetic baffle 16 can limit the U-shaped rod 12 and maintain the installation position of the U-shaped rod 12. By rotating the pressure rod 14, the clamping plate 15 can be driven downward by the pressure rod 14 to clamp the top surface of the test cable 18 to prevent the test cable 18 from detaching from the curved lifting plate 10.

[0024] Preferably, Figure 1 As shown, the herringbone rod 5 is symmetrical about the bisecting plane of the support platform 6, and the top of the herringbone rod 5 is movably connected to the support platform 6. By adjusting the distance from the lower end of the herringbone rod 5, the overall height of the herringbone rod 5 can be adjusted, thereby adjusting the test height of the test cable 18 to match the height of the wiring point of the external test equipment.

[0025] Preferably, Figure 1 As shown, the top thread of the movable seat 2 is connected with a locking rod 4, and the locking rod 4 is threaded through the movable seat 2 and the limit seat 1 in turn. The top of the limit seat 1 is provided with threaded holes 3 with equal intervals. By setting a plurality of threaded holes 3, the separation distance of the lower ends of the herringbone rods 5 can be adjusted, thereby changing the overall height of the herringbone rods 5, which is convenient for adapting to test equipment of different heights.

[0026] Preferably, Figure 4 As shown, the round shaft 8 coaxially passes through the torsion spring 19, and both ends of the torsion spring 19 are fixed in the straightening groove 7. The straightening groove 7 has a cavity inside, and the inner wall of the straightening groove 7 is provided with a through hole adapted to the clamping block 9. The clamping block 9 passes through the straightening groove 7 through the through hole, and the clamping block 9 can clamp both sides of the test cable 18.

[0027] Preferably, Figure 2 As shown, the curved lifting plate 10 is a semi-cylindrical thin plate, and a test cable 18 is clamped on the top of the curved lifting plate 10 . The curved lifting plate 10 can be tangentially adapted to the test cable 18 .

[0028] Preferably, Figure 1 As shown, the sides of adjacent limit seats 1 are connected with telescopic rods 17, and the tops of the two limit seats 1 are connected to the straightening structures respectively through height adjustment brackets and support platforms 6, and the two adjacent straightening structures support the test cables 18 through a curved lifting plate 10 respectively to keep the test cables 18 in a straightened state and prevent the test cables 18 from curling and deformation.

[0029] Preferably, Figure 1 As shown, a magnetic baffle 16 is fixed to the top of the straightening groove 7, and the U-shaped rod 12 rotates with the central axis of the bearing 11 as the rotation axis and is magnetically connected to the magnetic baffle 16, so that one end of the U-shaped rod 12 can be limited by the magnetic baffle 16.

[0030] Working principle: When in use, move the test cable 18 from top to bottom and clamp it into the curved lifting plate 10. During the movement of the test cable 18, downward pressure is applied to one end of the clamping block 9. An arc portion is formed on the side of the clamping block 9. The downward pressure has a tangential component in the arc portion, causing the clamping block 9 to rotate with the central axis of the circular shaft 8 as the rotation center. After being twisted, the torsion spring 19 has elastic potential energy to restore the deformation and cause the clamping block 9 to rotate in the opposite direction. After the clamping block 9 rotates in the opposite direction, it is clamped on both sides of the test cable 18 to fix one end of the test cable 18. By adopting more than two straightening structures to clamp the surface of the test cable 18, the wire body of the test cable 18 can be straightened, thereby maintaining the straight state of the test cable 18, and keeping the two ends of the test cable 18 at a specific height, preventing the wire body of the test cable 18 from curling and causing connection loads at both ends of the test cable 18.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] 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 test cable straightening device, comprising a limit seat (1), characterized in that: The top of the limit seat (1) is slidably connected to a height adjustment bracket, the top of the height adjustment bracket is movably connected to a support platform (6), the top of the support platform (6) is fixed with a straightening structure, the straightening structure comprises a straightening groove (7) fixed to the top of the support platform (6), the inner wall of the straightening groove (7) is elastically limitedly connected to the round shaft (8) through a torsion spring (19) and is provided with a clamping block (9), the lower end of the straightening groove (7) is formed with a curved lifting plate (10), and the top of the straightening groove (7) is connected to a clamping component through a bearing (11).

2. A test cable straightening device according to claim 1, characterized in that: The height-adjustable bracket comprises a movable seat (2) and an herringbone rod (5) hinged to one end of the movable seat (2), the herringbone rod (5) being symmetrical with respect to a bisecting plane of a support platform (6), and the top of the herringbone rod (5) being movably connected to the support platform (6).

3. A test cable straightening device according to claim 2, characterized in that: The top of the movable seat (2) is threadedly connected with a locking rod (4), and the locking rod (4) is threadedly passed through the movable seat (2) and the limiting seat (1) in sequence, and the top of the limiting seat (1) is provided with threaded holes (3) at equal intervals.

4. A test cable straightening device according to claim 1, characterized in that: The circular shaft (8) coaxially passes through the torsion spring (19), and both ends of the torsion spring (19) are fixed in the straightening groove (7). The straightening groove (7) has a cavity inside, and the inner wall of the straightening groove (7) is provided with a through hole adapted to fit the clamping block (9), and the clamping block (9) passes through the through hole into the straightening groove (7).

5. A test cable straightening device according to claim 1, characterized in that: The curved lifting plate (10) is a semi-cylindrical thin plate, and a test cable (18) is clamped on the top of the curved lifting plate (10).

6. A test cable straightening device according to claim 1, characterized in that: The sides of the adjacent limit seats (1) are connected to telescopic rods (17), the tops of the two limit seats (1) are respectively connected to the straightening structure via a height adjustment bracket and a support platform (6), and the two adjacent straightening structures support the test cable (18) via a curved lifting plate (10).

7. A test cable straightening device according to claim 1, characterized in that: The clamping component comprises a U-shaped rod (12) movably connected to the bearing (11), a limiting tube (13) is welded to the middle portion of the U-shaped rod (12), a pressure rod (14) is internally threadedly connected to the limiting tube (13), and a clamping plate (15) is welded to the lower end of the pressure rod (14).

8. A test cable straightening device according to claim 7, characterized in that: A magnetic baffle (16) is fixed to the top of the straightening groove (7), and the U-shaped rod (12) rotates with the central axis of the bearing (11) as a rotation axis and is magnetically connected to the magnetic baffle (16).

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