A support device for corners used for laying cables

By designing a support device at the corner of the cable laying, and applying pressure and resistance to the cable using the buffer mechanism and the resistance wheel, the damage and slip problems caused by tension and friction at the corner of the cable are solved, and a more stable Laying process.

CN118693702BActive Publication Date: 2025-01-03SANXIA JINSHAJIANG YUNCHUAN HYDROPOWER DEV CO LTD
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Patent Information

Application Number
CN202411162375.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-01-03
Estimated Expiration
2044-08-23

AI Technical Summary

Technical Problem

During the laying process, cables are easily damaged by tension and friction during the corners, and the inconsistent pulling position leads to slip and fall off, resulting in unstable laying and degraded performance.

Method used

A corner support device for laying cables including a first support member, a side stopper member and a second support member is designed, and a buffer mechanism and a resistance wheel are used to apply pressure and resistance to the cables to prevent slipping and falling off. And provide stable support through tension springs and limit wheels.

Benefits of technology

It effectively avoids the slippage and damage of the cable at the corners, reduces the resistance during laying, improves the stability of the cable and the safety of the pulling process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of cable laying, and in particular to a support device for a corner of a cable laying, comprising a first support member, and side limit members arranged on both sides of the first support member, and also comprising a second support member arranged on the side limit members, and the first support member is provided with two symmetrically arranged buffer mechanisms; the first support member comprises a first support frame, and a first vertical roller rotatably arranged on the first support frame; the present invention places the cable between two contact wheels, and the cable can slide along the surfaces of the first vertical roller, the second vertical roller and the side roller during the pulling process. During the sliding, the movement of the cable will push the contact wheel, causing the deflection member to deflect, and the tension spring to stretch, providing a certain resistance and buffering capacity, hindering the movement of the cable, and can protect and limit the cable during the cable laying process.
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Description

Technical Field

[0001] The invention relates to the technical field of cable laying, in particular to a supporting device at a corner for cable laying. Background Art

[0002] During the laying process of the cable, it needs to be supported by a supporting device. After the cable is supported, it is pulled by a traction mechanism to complete the laying of the cable. At the corners where the cable is laid, it is often faced with greater tension and friction, which may cause damage to the cable or performance degradation. In addition, due to the existence of the corners, the laying route of the cable is bent, and the weight of the cable itself will also cause the cable to bend and be stressed. The height of the pulling position of the cable is different, resulting in different pulling stress conditions of the cable at the corners. The cable is prone to slip when being pulled, and it is easy to slide off the device, making the cable easily damaged when being pulled. For this reason, a supporting device for cable laying is proposed. Summary of the invention

[0003] In view of the above-mentioned problem or the problem in the prior art that the cable is easily damaged when being pulled, the present invention is proposed.

[0004] Therefore, an object of the present invention is to provide a support device at a corner for laying cables.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A support device at a corner for laying cables, comprising a first support member, and side limit members arranged on both sides of the first support member, and also comprising a second support member arranged on the side limit member, and the first support member is provided with two symmetrically arranged buffer mechanisms; the first support member comprises a first support frame, and a first vertical roller rotatably arranged on the first support frame; the side limit member comprises a side bracket fixedly arranged on the side of the first support frame, and a side roller rotatably arranged on the side bracket; the second support member comprises a second support frame fixedly arranged on the side bracket, and a second vertical roller rotatably arranged on the second support frame; the buffer mechanism comprises a limit frame fixedly arranged on the first support frame, and two sliding blocks symmetrically arranged and slidably arranged in the limit frame, a deflection member is rotatably arranged on the limit frame, and also comprises an abutment wheel rotatably arranged on the deflection member, and a tension spring is connected between the deflection member and the sliding block.

[0006] As a preferred solution of the support device at the corner for cable laying of the present invention, the deflection member includes a deflection rod rotatably arranged on the limit frame, and a shifting rod arranged on the deflection rod; the contact wheel includes a support shaft rotatably arranged at the end of the deflection rod, and a limit wheel arranged on the outer wall of the support shaft.

[0007] As a preferred solution of the support device at the corner for laying cables of the present invention, the deflection member further comprises a wheel plate arranged on the outer wall of the deflection rod, and an abutment groove arranged on the outer wall of the wheel plate.

[0008] As a preferred solution of the supporting device at the corner for laying cables of the present invention, a limiting block is provided on the inner wall of the limiting frame; and a U-shaped groove is provided on the sliding block.

[0009] As a preferred solution of the support device at the corner for cable laying of the present invention, wherein: a connecting rod is provided on the sliding block, and a resistance column is provided on the connecting rod; it also includes a protective member arranged on the buffer mechanism, and the protective member includes a protective frame, and a protective roller rotatably arranged on the protective frame, and also includes a connecting groove arranged on the protective frame; the connecting groove and the resistance column are slidably connected.

[0010] As a preferred solution of the support device at the corner for laying cables of the present invention, it also includes a placement piece slidably arranged on the side limit piece, and a clamping piece arranged on the side limit piece.

[0011] As a preferred solution of the support device at the corner for laying cables of the present invention, the placement member includes a placement plate and a sliding column arranged on the placement plate, and an annular groove is arranged on the outer wall of the sliding column.

[0012] As a preferred solution of the support device at the corner for cable laying of the present invention, the clamping part includes a fixed shaft fixed on the outer wall of the side bracket, and a clamping plate rotatably arranged on the outer wall of the fixed shaft, and also includes an inclined surface arranged on the clamping plate, a torsion spring is arranged between the clamping plate and the fixed shaft; a notch is arranged on the side bracket.

[0013] As a preferred solution of the support device at the corner for cable laying of the present invention, the placement member also includes a guide column arranged on the placement plate; the second support member also includes a limit frame fixedly arranged on the outer wall of the second support frame, and a support roller rotatably arranged on the outer wall of the limit frame.

[0014] As a preferred solution of the supporting device at the corner for laying cables of the present invention, wherein: a first transverse roller is provided on the first supporting frame; and a second transverse roller is provided on the second supporting frame.

[0015] The beneficial effects of the support device at the corner for cable laying of the present invention are as follows: the present invention places the cable between two contact wheels, and the cable can slide along the surfaces of the first vertical roller, the second vertical roller and the side roller during the pulling process. The movement of the cable during sliding will push the contact wheels, causing the deflection member to deflect and the tension spring to stretch, providing a certain resistance and buffering capacity to hinder the movement of the cable. The contact wheels exert pressure on the surface of the cable, which can limit the sliding movement of the cable and thereby prevent it from slipping off the device. The cable can be protected and limited during the laying process, reducing the resistance during the laying process and preventing the cable from being subjected to excessive pulling force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the front structure of the support device at the corner for laying cables.

[0018] Figure 2 This is a schematic diagram of the back structure of the support device at the corner for laying cables.

[0019] Figure 3 A schematic diagram of the structure of a buffer mechanism of a support device at a corner for laying cables.

[0020] Figure 4 A schematic diagram of the structure of the protective member of the support device at the corner for laying cables.

[0021] Figure 5 A schematic diagram of the structure of the deflection member of the support device at the corner for laying cables.

[0022] Figure 6 A schematic structural diagram of the second supporting member of the supporting device at the corner for laying cables.

[0023] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0024] In the figure: 100, first support member; 101, first support frame; 102, first vertical roller; 103, first horizontal roller; 200, side limiter; 201, side bracket; 202, side roller; 203, notch; 300, second support member; 301, second support frame; 302, second vertical roller; 303, limiter; 304, support roller; 305, second horizontal roller; 400, buffer mechanism; 401, limiter frame; 401a, limiter block; 402, sliding block; 402a, U-shaped groove; 402b, connecting rod; 4 02c, abutment column; 403, deflection member; 403a, deflection rod; 403b, lever; 403c, wheel; 403d, abutment groove; 404, abutment wheel; 404a, support shaft; 404b, limit wheel; 405, tension spring; 500, protection member; 501, protection frame; 502, protection roller; 503, connecting groove; 600, placement member; 601, placement plate; 602, sliding column; 603, annular groove; 604, guide column; 700, clamping member; 701, fixed shaft; 702, clamping plate; 703, inclined plane; 704, torsion spring. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1, reference Figures 1 to 5 , which is the first embodiment of the present invention, provides a support device for a corner for laying cables, including a first support member 100, and side limit members 200 arranged on both sides of the first support member 100, and also including a second support member 300 arranged on the side limit members 200. The first support member 100 is provided with two symmetrically arranged buffer mechanisms 400; in this embodiment, the first support member 100 and the second support member 300 are vertically arranged, which is convenient for placing the device at the corner.

[0029] The first support member 100 includes a first support frame 101 and a first vertical roller 102 rotatably disposed on the first support frame 101 ; in this embodiment, a plurality of first vertical rollers 102 arranged in a horizontal array are disposed on the first support frame 101 .

[0030] The side limit member 200 includes a side bracket 201 fixedly arranged on the side of the first support frame 101, and a side roller 202 rotatably arranged on the side bracket 201; in this embodiment, the outer wall diameter of the side roller 202 is larger than the outer wall diameter of the first vertical roller 102, and the larger diameter of the side roller 202 can form a larger support area at the corner.

[0031] The second support member 300 includes a second support frame 301 fixed on the side bracket 201, and a second vertical roller 302 rotatably arranged on the second support frame 301; in the present embodiment, a plurality of second vertical rollers 302 arranged in a horizontal array are provided on the second support frame 301. By arranging the first vertical roller 102, the second vertical roller 302 and the side roller 202, the supporting area for the cable can be increased, and the cable can roll and slide up and down on its surface. When displacement occurs, it can still be effectively supported, thereby preventing the cable from detaching from the device, thereby improving the stability during the laying process.

[0032] The buffer mechanism 400 includes a limit frame 401 fixed on the first support frame 101, and two sliding blocks 402 that are symmetrically arranged and slidably arranged in the limit frame 401. A deflection member 403 is rotatably provided on the limit frame 401, and also includes a contact wheel 404 rotatably provided on the deflection member 403. A tension spring 405 is connected between the deflection member 403 and the sliding block 402. In this embodiment, two symmetrically arranged sliding blocks 402 are slidably provided in each limit frame 401. The tension of the tension spring 405 can maintain the tendency of the deflection member 403 to move toward a vertical state, so that the two contact wheels 404 can have a tendency to move close to each other, and the cable is arranged between the two contact wheels 404.

[0033] When in use, the cable is placed between the two contact wheels 404. During the pulling process, the cable can slide along the surfaces of the first vertical roller 102, the second vertical roller 302 and the side roller 202. The movement of the cable during sliding will push the contact wheel 404, causing the deflection member 403 to deflect, and the tension spring 405 to stretch, providing a certain resistance and buffering capacity to hinder the movement of the cable. The contact wheel 404 applies pressure to the surface of the cable, which can limit the sliding movement of the cable and prevent it from slipping off the device. The cable can be protected and limited during the laying process, reducing the resistance during the laying process and preventing the cable from being subjected to excessive pulling force.

[0034] Specifically, the deflection member 403 includes a deflection rod 403a rotatably arranged on the limit frame 401, and a lever 403b arranged on the deflection rod 403a; in the present embodiment, the setting of the lever 403b can push the sliding block 402 to slide in the limit frame 401, and when the cable pushes the contact wheel 404 to deflect the deflection rod 403a, due to the deflection of the deflection rod 403a, the tension spring 405 on one side will be stretched, and when it is deflected to a certain angle, the lever 403b will push the sliding block 402 connected to the stretched tension spring 405, so that the sliding block 402 slides in the limit frame 401, and due to the sliding of the sliding block 402 away, the tension spring 405 will be further stretched, increasing the pulling force on the deflection rod 403a, thereby increasing the pressure applied by the contact wheel 404 to the cable, avoiding the cable from falling off, and further improving the limiting effect on the cable.

[0035] Preferably, the interference wheel 404 includes a support shaft 404a rotatably arranged at the end of the deflection rod 403a, and a limiting wheel 404b arranged on the outer wall of the support shaft 404a. In this embodiment, the support shaft 404a passes through the end of the deflection rod 403a, and the outer wall of the support shaft 404a is provided with two symmetrically arranged limiting wheels 404b. The cable can be limited by the symmetrically arranged limiting wheels 404b, thereby increasing the limiting effect of the interference wheel 404 on the cable.

[0036] Furthermore, the deflection member 403 also includes a wheel 403c arranged on the outer wall of the deflection rod 403a, and a resistance groove 403d arranged on the outer wall of the wheel 403c. In this embodiment, after the deflection rod 403a is deflected, the tension spring 405 can be resisted and limited by the wheel 403c and the resistance groove 403d, thereby further increasing the stretching length of the tension spring 405. At the same time, the tension spring 405 is limited, which can increase the pressure applied by the resistance wheel 404 to the cable.

[0037] Among them, the inner wall of the limit frame 401 is provided with a limit block 401a; the sliding block 402 is provided with a U-shaped groove 402a. In this embodiment, the setting of the limit block 401a can limit the movement of the sliding block 402, and the setting of the U-shaped groove 402a can facilitate the deflection of the lever 403b. Part of the wheel 403c is placed in the U-shaped groove 402a of the two sliding blocks 402. Through the setting of the wheel 403c and the setting of the lever 403b, the rotation of the deflection member 403 is facilitated to avoid interference with the end of the sliding block 402.

[0038] Example 2, reference Figure 1~Figure 5, which is the second embodiment of the present invention. Different from the previous embodiment, a connecting rod 402b is provided on the sliding block 402, and a resistance column 402c is provided on the connecting rod 402b; it also includes a protective member 500 arranged on the buffer mechanism 400, and the protective member 500 includes a protective frame 501, and a protective roller 502 rotatably arranged on the protective frame 501, and also includes a connecting groove 503 arranged on the protective frame 501; in this embodiment, the connecting groove 503 and the resistance column 402c are slidably connected, and a plurality of protective rollers 502 are arranged in a horizontal array, and the connecting groove 503 on the protective frame 501 is arranged corresponding to the resistance column 402c.

[0039] When in use, the protective member 500 is installed on the resistance column 402c, and the resistance column 402c can clamp the protective member 500. When the cable is transported, the setting of the protective member 500 can prevent the cable from slipping. At the same time, the protective roller 502 can also limit the cable, thereby increasing the stability of the cable during laying.

[0040] When removing the protective member 500, it is necessary to bend the two deflection members 403 to the same side so that the sliding block 402 on the same side slides, thereby causing the resistance column 402c on the same side to be disconnected from the connecting groove 503. At this time, the protective member 500 can be removed by rotating the protective frame 501 and pulling out the protective frame 501.

[0041] During the process of pulling the cable, due to the setting of the tension spring 405, only one deflection member 403 can be deflected. Therefore, no matter which direction the deflection rod 403a deflects, only one resistance column 402c will be detached from the connecting groove 503 during use, and the protective member 500 will not fall off during use, thereby improving the stability of the device during operation.

[0042] The rest of the structure is the same as that of Example 1.

[0043] Example 3, reference Figure 1 to Figure 7 , which is the third embodiment of the present invention. Different from the previous embodiment, it also includes a placement member 600 slidably arranged on the side limit member 200, and a clamping member 700 arranged on the side limit member 200. In this embodiment, two clamping members 700 are provided and are arranged on different side limit members 200.

[0044] Specifically, the placement member 600 includes a placement plate 601 and a sliding column 602 arranged on the placement plate 601. The outer wall of the sliding column 602 is provided with an annular groove 603. In this embodiment, the sliding column 602 passes through the side bracket 201. The sliding column 602 can slide in the side bracket 201. A plurality of annular grooves 603 are provided and are evenly spaced on the outer wall of the sliding column 602.

[0045] Furthermore, the clamping member 700 includes a fixed shaft 701 fixed to the outer wall of the side bracket 201, and a clamping plate 702 rotatably arranged on the outer wall of the fixed shaft 701, and also includes an inclined surface 703 arranged on the clamping plate 702, and a torsion spring 704 is arranged between the clamping plate 702 and the fixed shaft 701; a notch 203 is arranged on the side bracket 201. In the present embodiment, the clamping plate 702 is in an L-shaped structure. When the abutting column 402c abuts against the clamping plate 702, the clamping plate 702 can be rotated by the fixed shaft 701. After the abutment is lost, the clamping plate 702 can be reset by the elastic force of the torsion spring 704, so that the clamping plate 702 enters the notch 203, and the clamping plate 702 is rotated by the fixed shaft 701. The connection between the side bracket 201 and the sliding column 602 can be limited by clamping the annular groove 603 with the clamping plate 702. The setting of the inclined surface 703 can facilitate the deflection of the clamping plate 702 after being resisted, thereby facilitating the sliding of the sliding column 602. It should be noted that the inclined surfaces 703 on the clamping plates 702 on different side brackets 201 are oriented in different directions, that is, when both clamping plates 702 are in the groove 203, the sliding of the side bracket 201 and the sliding column 602 can be limited by the two clamping plates 702. When one of the clamping plates 702 is rotated, the rotation of the inclined surface 703 can make the side bracket 201 slide unidirectionally on the outer wall of the sliding column 602.

[0046] Preferably, the placement member 600 also includes a guide column 604 arranged on the placement plate 601; the second support member 300 also includes a limit frame 303 fixedly arranged on the outer wall of the second support frame 301, and a support roller 304 rotatably arranged on the outer wall of the limit frame 303. In this embodiment, the guide column 604 passes through the limit frame 303, and the stability of the second support member 300 can be increased through the sliding connection between the guide column 604 and the limit frame 303.

[0047] Furthermore, a first transverse roller 103 is provided on the first support frame 101; a second transverse roller 305 is provided on the second support frame 301. In this embodiment, the arrangement of the first transverse roller 103 and the second transverse roller 305 facilitates the first support member 100 and the second support member 300 to slide up and down along the surface at the corner.

[0048] Preferably, the distance between the rotation axis of the deflection rod 403a and the rotation axis of the contact wheel 404 connected thereto is set to d1, the maximum radius of the outer surface of the limiting wheel 404b is set to r1, and the distance between the rotation axes of the two deflection rods 403a is set to d2, d2<(d1+r1)×2, that is, in an unstressed state, the outer walls of the two contact wheels 404 contact each other, and the deflection rod 403a is in a tilted state.

[0049] Preferably, the two clamping members 700 are arranged at the diagonal positions of the first support member 100. When the deflection rod 403a is in an inclined state, the two contact wheels 404 contact each other to reduce the space formed between the two contact wheels 404, so that the cable can better fit the surface of the contact wheel 404, and the stability during operation is improved by increasing the fitting area. Moreover, each time one of the deflection members 403 is deflected and then reset, it can still maintain the initial state for tilting. Since the two clamping members 700 are arranged at the diagonal positions of the first support member 100, refer to Figure 3 If the deflection member 403 on the upper side is pushed up by the cable to deflect, the sliding block 402 will push the abutting column 402c, which will cause the clamping plate 702 on the upper clamping member 700 to deflect. At this time, the clamping connection between the clamping plate 702 and the annular groove 603 is lost, and the first support member 100, the second support member 300 and the side limit member 200 can slide up, automatically raising the height of the first support member 100, the second support member 300 and the side limit member 200. After the height is raised, the tension spring 405 restores its deformation and the clamping plate 702 is reset. By changing the height and the supporting position, the wear of the cable during pulling is reduced, or when the device is used. Before doing so, first adjust the first support member 100, the second support member 300 and the side limit member 200 to a suitable height, and then rotate one of the deflection members 403 so that when the deflection member 403 is deflected by force, the lever 403b thereon will deflect toward the side without the clamping member 700. Similarly, adjust the initial deflection direction of the other deflection member 403. In this state, no matter how much force and in what direction the force is applied to the resistance wheel 404 when the cable is laid, it will not cause the clamping plate 702 to deflect, so that the height of the first support member 100, the second support member 300 and the side limit member 200 is fixed, which is convenient for limiting the height supported by the device.

[0050] The rest of the structure is the same as that of Example 2.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A support device for a corner of a cable laying, characterized in that: The invention comprises a first support member (100), and side limit members (200) arranged on both sides of the first support member (100), and also comprises a second support member (300) arranged on the side limit members (200), wherein the first support member (100) is provided with two symmetrically arranged buffer mechanisms (400); The first support member (100) comprises a first support frame (101), and a first vertical roller (102) rotatably disposed on the first support frame (101); The side limiting member (200) comprises a side bracket (201) fixedly arranged on the side of the first supporting frame (101), and a side roller (202) rotatably arranged on the side bracket (201); The second support member (300) comprises a second support frame (301) fixedly mounted on the side support (201), and a second vertical roller (302) rotatably mounted on the second support frame (301); The buffer mechanism (400) comprises a limit frame (401) fixedly arranged on the first support frame (101), and two sliding blocks (402) symmetrically arranged and slidably arranged in the limit frame (401); a deflection member (403) is rotatably arranged on the limit frame (401), and also comprises an abutment wheel (404) rotatably arranged on the deflection member (403); and a tension spring (405) is connected between the deflection member (403) and the sliding block (402); The deflection member (403) comprises a deflection rod (403a) rotatably arranged on the limit frame (401), and a shifting rod (403b) arranged on the deflection rod (403a); The interference wheel (404) comprises a support shaft (404a) rotatably arranged at the end of the deflection rod (403a), and a limiting wheel (404b) arranged on the outer wall of the support shaft (404a); The distance between the rotation axis of the deflection rod (403a) and the rotation axis of the contact wheel (404) connected thereto is set to d1, the maximum radius of the outer surface of the limiting wheel (404b) is set to r1, and the distance between the rotation axes of the two deflection rods (403a) is set to d2, d2<(d1+r1)×2, that is, in an unstressed state, the outer walls of the two contact wheels (404) contact each other, and the deflection rod (403a) is in an inclined state.

2. The support device for the corner of the cable laying as claimed in claim 1, characterized in that: The deflection member (403) further comprises a wheel disc (403c) provided on the outer wall of the deflection rod (403a), and an abutment groove (403d) provided on the outer wall of the wheel disc (403c).

3. The support device for the corner of the cable laying as claimed in claim 2, characterized in that: The inner wall of the limiting frame (401) is provided with a limiting block (401a); The sliding block (402) is provided with a U-shaped groove (402a).

4. The support device for the corner of the cable laying as claimed in claim 3, characterized in that: The sliding block (402) is provided with a connecting rod (402b), and the connecting rod (402b) is provided with a resisting column (402c); It also includes a protective member (500) disposed on the buffer mechanism (400), the protective member (500) including a protective frame (501), and a protective roller (502) rotatably disposed on the protective frame (501), and also includes a connecting groove (503) disposed on the protective frame (501); The connection groove (503) and the abutment column (402c) are slidably connected.

5. The support device for the corner of the cable laying as claimed in claim 4, characterized in that: It also includes a placement piece (600) slidably disposed on the side limit piece (200), and a clamping piece (700) disposed on the side limit piece (200).

6. The supporting device for the corner of the cable laying as claimed in claim 5, characterized in that: The placement member (600) comprises a placement plate (601) and a sliding column (602) arranged on the placement plate (601), wherein an outer wall of the sliding column (602) is provided with an annular groove (603).

7. The support device for the corner of the cable laying as claimed in claim 6, characterized in that: The clamping member (700) comprises a fixed shaft (701) fixedly arranged on the outer wall of the side bracket (201), and a clamping plate (702) rotatably arranged on the outer wall of the fixed shaft (701), and also comprises an inclined surface (703) arranged on the clamping plate (702), and a torsion spring (704) is arranged between the clamping plate (702) and the fixed shaft (701); The side bracket (201) is provided with a notch (203).

8. The support device for the corner of the cable laying as claimed in claim 7, characterized in that: The placement piece (600) further comprises a guide column (604) provided on the placement plate (601); The second support member (300) further comprises a limiting frame (303) fixedly arranged on the outer wall of the second support frame (301), and a supporting roller (304) rotatably arranged on the outer wall of the limiting frame (303).

9. The support device for a corner for laying cables according to claim 8, characterized in that: A first transverse roller (103) is provided on the first support frame (101); A second transverse roller (305) is provided on the second support frame (301).