Cable installation adjusting box

Abstract

The utility model relates to the technical field of power cables, in particular to a cable installation adjusting box which comprises a box body, a box cover hinged to the front end of the box body, a cable arranged between the box body and the box cover, two fixing wheels which are in bilateral symmetry and connected to the box body in a rotating mode, and a sliding groove extending up and down is formed in the box body. Sliding wheels capable of sliding up and down are arranged on the sliding grooves, sliding rods are rotationally matched with the sliding wheels, a fixed box is fixedly arranged in the box body, telescopic blocks are arranged in the fixed box and communicate with the two ventilation openings, two sliding plates which are symmetrical left and right are slidably connected in the fixed box, and reset springs are connected between the sliding plates and the fixed box; a connecting block is fixedly arranged at the front end of the sliding rod, hinge seats are fixedly arranged on the connecting block and the two sliding plates, a supporting rod is connected between every two vertically adjacent hinge seats, the vertical height of the sliding wheels is automatically adjusted, the tension of the sliding wheels on the cable is kept, the cable is kept in the optimal stress state all the time, and long-time stable operation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a cable installation and adjustment box. Background Art

[0002] During the installation of power cables, it is particularly important to make appropriate tension adjustments to ensure the normal operation of the cables and extend their service life. Usually, when installing cables, you first need to lay the cables to the designated location, and then use a special tensioning device to apply a predetermined tension to the cables to ensure that the cables will not relax during operation, resulting in mechanical performance degradation or electrical instability. In this process, the operator needs to make adjustments based on experience and visual judgment to achieve the ideal tension. However, after the initial tensioning, the existing cables will expand and contract due to changes in ambient temperature. Most of the existing devices cannot automatically adjust the tension according to the real-time status of the cable, which may lead to the risk of cable damage or performance degradation due to inappropriate tension under extreme climatic conditions. Utility Model Content

[0003] The purpose of the utility model is to provide a cable installation and adjustment box, which is used to overcome the above-mentioned defects in the prior art.

[0004] According to the utility model, a cable installation and adjustment box comprises a box body, a box cover is hingedly connected to the front end of the box body, two left and right opening slots are provided between the box body and the box cover, cables are provided at the two slots between the box body and the box cover, two left and right symmetrical fixed wheels are rotatably connected to the box body, a sliding slot extending up and down is provided in the box body, a sliding block is slidably matched on the sliding slot, a sliding rod is fixedly provided at the front end of the sliding block, a sliding wheel is rotatably matched on the outer periphery of the sliding rod, the sliding wheel is located at the lower end of the two fixed wheels, and the cable is abutted against the two The outer circumferences of the fixed wheel and the sliding wheel are arranged in a "X" shape, a fixed box is fixedly arranged in the box body, and ventilation holes are arranged at the left and right ends of the fixed box, both of which penetrate the left and right ends of the box body, and telescopic blocks are arranged in the fixed box and in the parts communicating with the two ventilation holes, and two left-right symmetrical sliding plates are slidably connected in the fixed box, and a return spring is connected between the sliding plate and the fixed box, a connecting block is fixedly arranged at the front end of the sliding rod, and hinge seats are fixedly arranged on the connecting block and the two sliding plates, and a support rod is connected between two upper and lower adjacent hinge seats.

[0005] The beneficial effects of the utility model are:

[0006] During the long-term operation after the cable is installed, it will expand and contract due to the influence of ambient temperature changes. When the temperature rises and the cable becomes longer, the left and right ends of the cable are clamped by the box body and the box cover while the clamping force remains unchanged. The cable in the box body and the box cover will expand and contract, resulting in changes in the tension of the fixed wheel and the sliding wheel on the cable. The sliding plate moves left and right due to the volume change of the telescopic block, and then the upper and lower heights of the sliding wheel are adjusted through the support rod to maintain the tension of the sliding wheel on the cable, so that the cable is always kept in the best stress state, ensuring long-term stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the appearance of the utility model;

[0008] Figure 2 This utility model Figure 1 A schematic diagram of a top view structure;

[0009] Figure 3 This utility model Figure 1 A side view structural schematic diagram of;

[0010] Figure 4 This utility model Figure 2 Schematic cross-sectional view of AA in the figure;

[0011] Figure 5 This is a schematic diagram of the appearance of the utility model after the box cover is removed;

[0012] Figure 6 This utility model Figure 5 A schematic diagram of a top view structure;

[0013] Figure 7 This utility model Figure 5 A schematic diagram of the front view structure of

[0014] Figure 8 This utility model Figure 6 A partial cross-sectional schematic diagram of the middle BB;

[0015] In the figure:

[0016] 10. Box body; 11. Box cover; 12. Cable; 13. Ventilation port; 14. Fixed wheel; 15. Sliding wheel; 16. Sliding slot; 17. Sliding rod; 18. Connecting block; 19. Support rod; 20. Articulated seat; 21. Fixed box; 22. Sliding plate; 23. Telescopic block; 24. Reset spring. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0018] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there can be an intermediate element at the same time:

[0019] Embodiment 1:

[0020] Reference Figure 1-Figure 8 According to an embodiment of the utility model, a cable installation and adjustment box includes a box body 10, a box cover 11 is hinged at the front end of the box body 10, two holes and grooves opened to the left and right are provided between the box body 10 and the box cover 11, and cables 12 are provided at the two holes and grooves between the box body 10 and the box cover 11. Two left-right symmetrical fixed wheels 14 are rotatably connected to the box body 10, and a sliding groove 16 extending up and down is provided in the box body 10. A sliding block is slidably matched on the sliding groove 16, and a sliding rod 17 is fixed at the front end of the sliding block. A sliding wheel 15 is rotatably matched on the outer periphery of the sliding rod 17. The sliding wheel 15 is located at the lower end of the two fixed wheels 14, and the cable 12 is abutted against the fixed wheels 14. The two fixed wheels 14 and the outer circumference of the sliding wheel 15 are arranged in a "F" shape. A fixed box 21 is fixedly arranged in the box body 10. The left and right ends of the fixed box 21 are provided with vents 13 that penetrate the left and right ends of the box body 10. The fixed box 21 and the parts communicating with the two vents 13 are provided with telescopic blocks 23. Two left-right symmetrical sliding plates 22 are slidably connected in the fixed box 21. A return spring 24 is connected between the sliding plate 22 and the fixed box 21. A connecting block 18 is fixedly arranged at the front end of the sliding rod 17. A hinge seat 20 is fixedly arranged on the connecting block 18 and the two sliding plates 22. A support rod 19 is connected between two upper and lower adjacent hinge seats 20.

[0021] Insert the cable 12 into the box body 10, and arrange it from left to right along the outer circumference of the two fixed wheels 14 and the sliding wheel 15. By closing the box cover 11, the cable 12 is arranged in the box body 10 and the box cover 11. The rear end of the sliding wheel 15 is fixed with a sliding block that slides with the sliding groove 16. Under the elastic force of the return spring 24, the sliding wheel 15 slides downward, so that the cable arranged at the fixed wheel 14 and the sliding wheel 15 is tightened.

[0022] During use, the external temperature changes accordingly, causing the cable 12 to expand and contract due to heat. Through the two opened vents 13, the external air contacts the telescopic block 23, causing the cable 12 to shrink and expand due to heat at the telescopic block 23. As a result, the telescopic block 23 pushes the sliding plate 22 to overcome the spring force of the return spring 24 to slide, or the return spring 24 pushes the sliding plate 22 to slide toward the telescopic block 23. Then, when the temperature changes, the upper and lower heights of the sliding wheel 15 are adjusted, and then the tightness of the fixed wheel 14 and the sliding wheel 15 on the cable 12 is adjusted to prevent the cable 12 from being broken due to excessive tightness or detached due to excessive looseness.

[0023] It is clear to those skilled in the art that various modifications to the above embodiments can be made without departing from the overall spirit and concept of the present invention. All of them fall within the protection scope of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A cable installation and adjustment box, comprising a box body (10), wherein a box cover (11) is hingedly connected to the front end of the box body (10), characterized in that: A cable (12) is provided between the box body (10) and the box cover (11); two left-right symmetrical fixed wheels (14) are rotatably connected to the box body (10); a sliding groove (16) extending up and down is provided in the box body (10); a sliding wheel (15) capable of sliding up and down is provided on the sliding groove (16); the sliding wheel (15) is rotatably matched with a sliding rod (17); a fixed box (21) is fixed in the box body (10); ventilation holes (13) are provided at the left and right ends of the fixed box (21) and both pass through the left and right ends of the box body (10); A telescopic block (23) is provided in the fixed box (21) and in the part communicating with the two ventilation openings (13); two sliding plates (22) are slidably connected in the fixed box (21) and are symmetrical with each other; a return spring (24) is connected between the sliding plates (22) and the fixed box (21); a connecting block (18) is fixedly provided at the front end of the sliding rod (17); a hinge seat (20) is fixedly provided on the connecting block (18) and the two sliding plates (22); and a support rod (19) is connected between two upper and lower adjacent hinge seats (20).

2. A cable installation and adjustment box according to claim 1, characterized in that: The cable (12) is disposed in abutment with the outer circumferences of the two fixed wheels (14) and the sliding wheel (15) in a "X" shape.

3. A cable installation and adjustment box according to claim 2, characterized in that: A sliding block is slidably matched on the sliding groove (16), and the sliding block is fixedly connected to the sliding rod (17).

4. A cable installation and adjustment box according to claim 3, characterized in that: The sliding wheel (15) is located at the lower ends of the two fixed wheels (14).

5. A cable installation and adjustment box according to claim 4, characterized in that: Two openings are provided between the box body (10) and the box cover (11), and the left and right ends of the cable (12) are tightly attached to the openings.

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