Anti-wear protection device for cable laying construction

Abstract

The utility model relates to an anti-wear protection device for cable laying construction. The anti-wear protection device for cable laying construction is mounted at a convex corner in a cable pipeline; the device comprises a pulley assembly and supporting legs, the supporting legs are vertically installed at the bottoms of the pulley assemblies, and the bottoms of the supporting legs abut against the bottom face of the cable pipeline. The pulley assembly comprises a guide wheel correspondingly matched with the cable and a fixed connecting plate, the fixed connecting plate is U-shaped, the guide wheel is installed between two side plates of the fixed connecting plate and is in running fit with the fixed connecting plate, and the guide wheel is in running fit with the fixed connecting plate; the size of the guide wheel is matched with the diameter of the cable. According to the anti-wear protection device for cable laying construction, the pulley assembly supports the cable at the corner of the pipeline, so that the cable can be protected from being rubbed with the corner of the pipeline, and the completeness of the surface of the cable is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of cable laying construction equipment, and in particular to an anti-wear protection device for cable laying construction. Background Technology

[0002] The cable laying process generally involves inserting the cable into a cable duct or trench, and then pulling the other end manually or mechanically to keep the entire cable under near-tension. The pulling action causes the side of the cable to rub against the sidewall of the cable trench for a long time, especially at the inner convex corners of the cable trench. The corners of the cable trench increase the friction between the cable and the trench. After the cable has been rubbing against the cable duct for a long time, the insulation on the surface of the cable is easily damaged, thereby reducing the service life of the cable.

[0003] In addition, cable laying often involves corners, where cable traction is hindered. Even increasing the traction force may not improve the laying process and could even exacerbate cable wear at the corners. Therefore, a device is needed to protect the cable during laying and ensure smooth traction. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems and provide a wear-resistant protection device for cable laying construction.

[0005] The technical solution of this utility model is: a wear-resistant protection device for cable laying construction, which is installed at the protruding corner inside the cable duct; the device includes a pulley assembly and a support leg; the support leg is vertically installed at the bottom of the pulley assembly, and the bottom of the support leg abuts against the bottom surface of the cable duct; the support leg can limit the height of the pulley assembly to a suitable height, so that the cable is disengaged from the bottom of the cable duct when being pulled, reducing friction; and the pulley assembly replaces the sliding friction of the cable with rolling friction, which can reduce the frictional resistance between the cable and the side wall of the cable duct, ensuring smooth cable traction and minimal wear at the protruding corner;

[0006] The pulley assembly includes a guide wheel and a fixed connecting plate that correspond to the cable. The fixed connecting plate is U-shaped. The guide wheel is installed between the two side plates of the fixed connecting plate and rotates with the fixed connecting plate. The guide wheel rotates with the fixed connecting plate. The size of the guide wheel matches the diameter of the cable.

[0007] Preferably, the device further includes a ball joint support; the ball joint support is detachably mounted on the side wall of the cable conduit;

[0008] The support leg is connected to the pulley assembly via telescopic rod A; the ball joint support is hinged to the pulley assembly via telescopic rod B; the end of telescopic rod B engages with the ball joint support via a universal ball joint; the ball joint support provides a spherical joint, allowing the pulley assembly to deflect in any direction; the support rod limits the pulley assembly to a certain height; the height of the pulley assembly is adjusted according to the outer diameter of the cable to be pulled. The middle sections of telescopic rods A and B are each equipped with a locking structure; this fixes the length of the telescopic rods, preventing them from retracting due to cable pulling.

[0009] The outer wall of the fixed telescopic plate is provided with an ear plate, which is hinged to one end of the telescopic rod B by a pin; the other end of the telescopic rod B adopts a ball joint structure and cooperates with the ball joint support.

[0010] Furthermore, the fixed connecting plates are all vertically facing outwards; several fixed connecting plates are sequentially hinged to each other at the left and right ends; several support legs are respectively installed on the downward-facing side of the fixed connecting plates; the ball joint support is connected to the closed end of the fixed connecting plate.

[0011] Furthermore, several pulley assemblies, support legs, and ball joint supports are provided, with adjacent pulley assemblies hinged together; each support leg corresponds to a pulley assembly. These pulley assemblies support the cable, increasing its turning radius and preventing excessive bending.

[0012] Furthermore, the axes of the guide wheels in the plurality of pulley assemblies are distributed in a circular pattern. This allows the cable to bypass corners along the circumference during the pulling process, making the pulling process smoother.

[0013] Furthermore, a base plate is fixedly installed at the bottom of the ball joint support, which abuts against the side wall of the cable duct; several ball joint supports are fixedly installed on the same base plate. This increases the overall structural stability of the device.

[0014] Preferably, the support leg is provided with a base. This can effectively reduce the impact of unevenness on the bottom surface of the cable duct on the pulley assembly.

[0015] Furthermore, the base plate is a polygonal shape with an included angle of α, where 0° < α < 180°; the included angle of the base plate is consistent with the angle of the inner convex corner of the cable duct. This allows the base plate to fit snugly against the side wall of the inner corner of the cable duct, maintaining the stability of the device.

[0016] The beneficial effects of this utility model are as follows: The cable laying construction anti-wear protection device of this utility model has the following advantages:

[0017] 1. The pulley assembly of this utility model supports the cable at the corner of the pipe, which can protect the cable from friction with the corner of the pipe, thereby ensuring the integrity of the cable sheath.

[0018] 2. Multiple sets of pulley assemblies are used to support the bends of the cable, preventing the cable from bending excessively due to stress.

[0019] 3. When the cable is pulled, the guide wheel rolls with the cable, reducing friction and making cable laying easier. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the cable laying construction anti-wear protection device of this utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the cable laying construction anti-wear protection device of this utility model. Figure 2 (Remove cable conduits);

[0022] Figure 3 yes Figure 2 Enlarged view of I;

[0023] Figure 4 yes Figure 2 Top view;

[0024] Figure 5 yes Figure 4 AA sectional stereoscopic view;

[0025] In the diagram: 00. Cable, 01. Inner wall of cable conduit.

[0026] 11. Fixed connecting plate; 111. Ear plate; 12. Guide wheel; 21. Support leg; 22. Telescopic rod A; 31. Ball joint support; 32. Telescopic rod B; 33. Base plate; 34. Pin; 4. Locking structure;

[0027] α is the included angle of the base plate. Detailed Implementation

[0028] Example 1: See Figure 1-5 A wear-resistant protection device for cable laying is disclosed. The device is installed at a protruding corner inside a cable conduit. The device includes a pulley assembly and a support leg 21. The support leg 21 is vertically installed at the bottom of the pulley assembly, with its bottom abutting against the bottom surface of the cable conduit. The support leg 21 limits the height of the pulley assembly to a suitable height, preventing the cable from contacting the bottom of the cable conduit when pulled, thus reducing friction. Furthermore, the pulley assembly uses rolling friction instead of sliding friction of the cable, reducing frictional resistance between the cable and the side wall 01 of the cable conduit, ensuring smooth cable traction and minimal wear at the protruding corner.

[0029] The pulley assembly includes a guide wheel 12 that matches the cable and a fixed connecting plate 11. The fixed connecting plate 11 is U-shaped. The guide wheel 12 is installed between the two side plates of the fixed connecting plate 11 and rotates with the fixed connecting plate 11. The size of the guide wheel 12 matches the diameter of the cable.

[0030] The device also includes a ball joint support 31; the ball joint support 31 is detachably mounted on the side wall 01 of the cable duct.

[0031] Support leg 21 is connected to the pulley assembly via telescopic rod A 22; ball joint support 31 is hinged to the pulley assembly via telescopic rod B 32; the end of telescopic rod B 32 engages with ball joint support 31 via a universal ball joint; ball joint support 31 provides a spherical joint, allowing the pulley assembly to deflect in any direction; the support rod limits the pulley assembly to a certain height; the height of the pulley assembly is adjusted according to the outer diameter of the cable to be pulled. The telescopic rod A 22 and telescopic rod B 32 are respectively equipped with locking structures 4 in their middle sections; these structures can fix the length of the telescopic rods, preventing them from retracting due to cable pulling.

[0032] The outer wall 01 of the fixed telescopic plate is provided with an ear plate 111, which is hinged to one end of the telescopic rod 32 via a pin 34; the other end of the telescopic rod 32 adopts a ball joint structure to cooperate with the ball joint support 31.

[0033] All fixed connecting plates are vertically facing outwards; several fixed connecting plates are sequentially hinged to each other at the left and right ends; several support legs are respectively installed on the downward-facing side of the fixed connecting plates; the ball joint support is connected to the closed end of the fixed connecting plate.

[0034] The aforementioned pulley assemblies, support legs 21, and ball joint supports 31 are provided in multiple units, with adjacent pulley assemblies hinged together; each support leg 21 corresponds to a pulley assembly. These pulley assemblies support the cable, increasing its turning radius and preventing excessive bending.

[0035] The axes of the guide wheels 12 in the pulley assembly are distributed in a circle. This allows the cable to pass around corners in a circular direction during the pulling process, making the pulling process smoother.

[0036] A base plate 33 is fixedly installed at the bottom of the ball joint support 31, and the base plate 33 abuts against the side wall 01 of the cable duct; several ball joint supports 31 are fixedly installed on the same base plate 33. This can increase the overall structural stability of the device.

[0037] The support leg 21 is equipped with a base. This effectively reduces the impact of unevenness on the bottom surface of the cable duct on the pulley assembly.

[0038] The base plate 33 is a polygonal shape with an included angle of α, where 0° < α < 180°. The included angle of the base plate 33 is consistent with the angle of the inner convex corner of the cable duct. This allows the base plate 33 to fit snugly against the side wall 01 of the inner corner of the cable duct, maintaining the stability of the device.

[0039] In this embodiment, the included angle α is 90°.

[0040] The operation of this device includes the following steps:

[0041] ① Open the cover plate at the corner of the cable duct or duct bend, and place the device at the corner;

[0042] ② Adjust the length of the telescopic rod A22 to match the height of the guide wheel 12 with the height of the cable;

[0043] ③ Fix all the ball joint supports 31 to the base plate 33, and adjust the length of the telescopic rods 32 respectively so that the guide wheel 12 is in contact with the cable;

[0044] ④ Tighten all locking mechanisms 4 to fix the shape of the device.

[0045] After installation, when the cable is pulled, the guide wheel 12 rolls with the cable, reducing friction and making cable laying easier.

[0046] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that this device is used for laying cables in cable wells.

[0047] The pulley assembly is horizontally positioned, and both sides of the fixed connecting plate 11 are equipped with supporting legs 21. The zigzag base plate 33 is attached to the entrance of the cable well and the inner corner of the cable well. This allows the pulley assembly to be supported between the two side walls 01 of the cable well, providing guidance for the cable and preventing friction between the cable and the corner of the cable well.

Claims

1. A wear-resistant protective device for cable laying construction, characterized in that, The device is installed inside the cable conduit at a protruding corner; the device includes a pulley assembly and a support leg; the support leg is vertically installed at the bottom of the pulley assembly, and the bottom of the support leg abuts against the bottom surface of the cable conduit; The pulley assembly includes a guide wheel and a fixed connecting plate that correspond to the cable. The fixed connecting plate is U-shaped. The guide wheel is installed between the two side plates of the fixed connecting plate and rotates with the fixed connecting plate. The guide wheel rotates with the fixed connecting plate. The size of the guide wheel matches the diameter of the cable.

2. The anti-wear protection device for cable laying construction according to claim 1, characterized in that: The device also includes a ball joint support; the ball joint support is detachably mounted on the side wall of the cable conduit. The support leg is connected to the pulley assembly via telescopic rod A; the ball joint support is hinged to the pulley assembly via telescopic rod B; the end of telescopic rod B engages with the ball joint support via a universal ball joint; the middle portions of telescopic rod A and telescopic rod B are respectively provided with locking structures.

3. The anti-wear protection device for cable laying construction according to claim 2, characterized in that: All fixed connecting plates are vertically facing outwards; several fixed connecting plates are sequentially hinged to each other at the left and right ends; several support legs are respectively installed on the downward-facing side of the fixed connecting plates; the ball joint support is connected to the closed end of the fixed connecting plate.

4. The anti-wear protection device for cable laying construction according to claim 2, characterized in that: The axes of the guide wheels in the plurality of pulley assemblies are distributed in a circle.

5. The anti-wear protection device for cable laying construction according to claim 3, characterized in that: The bottom of the ball joint support is fixedly provided with a base plate, which abuts against the side wall of the cable duct; several ball joint supports are fixedly installed on the same base plate.

6. The anti-wear protection device for cable laying construction according to claim 1, characterized in that: The support leg is equipped with a base.

7. The anti-wear protection device for cable laying construction according to claim 5, characterized in that: The base plate is a polygonal shape with an included angle of α, where 0° < α < 180°; the included angle of the base plate is consistent with the angle of the inner convex angle of the cable duct.

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