Positioning device for power cable installation

Abstract

Compared with the prior art, the positioning device for installing the power cable has the following beneficial effects that the cable is convenient to drag by arranging the supporting rollers, and the cable is in rolling friction with the supporting rollers during dragging, so that the probability of damage to the surface of the cable due to sliding friction is reduced, and the service life of the cable is prolonged. Comprising an installation support and a plurality of horizontal supports arranged on the installation support at intervals, a plurality of supporting rollers are arranged on the horizontal supports at intervals in the extending direction of the horizontal supports, the axes of the supporting rollers are parallel to the extending direction of the horizontal supports, and the supporting faces of the supporting rollers are higher than the upper surfaces of the horizontal supports.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning and installing power cables, in particular to a positioning device for installing power cables. Background Art

[0002] Currently, power cables are generally installed in cable trenches, specifically by arranging cable installation racks on the side walls of the cable trench. The cable installation racks are divided into multiple layers, and the power cables are layered on the multiple layers of the installation racks.

[0003] For example, the utility model with application number CN213125457U discloses a cable installation bracket, which includes a mounting bracket and a multi-layer horizontal bracket arranged on the mounting bracket. The power cable is installed on the horizontal bracket, and multiple mounting brackets are arranged at intervals along the extension direction of the cable trench. During the actual laying of the cable, the cable is laid along the extension direction of the cable trench on the mounting brackets arranged at intervals. After the cable is installed on the mounting bracket, the cable between the two adjacent cable brackets sags due to gravity. In order to ensure the installation specifications, the sag length of the cable between the two adjacent cable brackets needs to be controlled within a certain range. Therefore, the sag length needs to be adjusted during installation. The current adjustment method is to adjust it by dragging the cable. Since the cable is in direct contact with the horizontal bracket, the two are in sliding fit. Therefore, the dragging resistance is large when the cable is dragged, and it is easy to damage the outer skin of the cable. Utility Model Content

[0004] The purpose of the present utility model is to solve the above problems and provide a positioning device for power cable installation.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: a positioning device for power cable installation, comprising a mounting bracket and a plurality of horizontal brackets spaced apart on the mounting bracket, a plurality of support rollers spaced apart on the horizontal bracket along the extension direction of the horizontal bracket, the axis of the support roller being parallel to the extension direction of the horizontal bracket, and the support surface of the support roller being higher than the upper surface of the horizontal bracket.

[0006] Furthermore, two support plates are spaced apart on the horizontal bracket, and both ends of the support roller are rotatably connected to the two support plates respectively. At least one of the support plates is provided with a locking assembly, and the locking assembly is used to circumferentially lock the support roller.

[0007] Furthermore, the support plate is provided with a through hole coaxially arranged with the support roller, and the locking assembly includes a threaded hole provided on the side of the support plate and perpendicularly intersecting with the through hole and a locking screw threadedly connected to the threaded hole.

[0008] Furthermore, an accommodating groove is provided at one end of the threaded hole connected to the through hole, an extrusion plate is provided in the accommodating groove, and the extrusion plate includes a friction surface arranged opposite to the threaded hole.

[0009] Furthermore, it also includes a positioning plate that is detachably arranged above the supporting roller, a pressure plate is arranged between the positioning plate and the supporting roller, the pressure plate is vertically guided by the positioning plate, and an elastic member is arranged between the positioning plate and the pressure plate, and the elastic member can provide downward elastic force to the pressure plate.

[0010] Furthermore, the positioning plate is provided with a plurality of guide rods which are arranged in a one-to-one correspondence with the plurality of support rollers, and the lower end portions of the guide rods are connected to the pressure plate.

[0011] Furthermore, the elastic member includes a plurality of compression springs sleeved on a plurality of guide rods.

[0012] The utility model discloses a positioning device for power cable installation which has the following beneficial effects compared with the prior art: by arranging support rollers, the dragging of the cables is facilitated, and the cables and the support rollers roll and rub against each other during dragging, thereby reducing the probability of damage to the cable surface due to sliding friction. The utility model comprises a mounting bracket and a plurality of horizontal brackets arranged at intervals on the mounting bracket, wherein a plurality of support rollers are arranged at intervals on the horizontal bracket along the extension direction of the horizontal bracket, the axes of the support rollers are parallel to the extension direction of the horizontal bracket, and the support surfaces of the support rollers are higher than the upper surface of the horizontal bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of a positioning device for power cable installation.

[0014] Figure 2 The utility model is a side view structural schematic diagram of a middle horizontal bracket of a positioning device for power cable installation.

[0015] Figure 3 The utility model is a schematic diagram of the three-dimensional structure of a horizontal bracket in a positioning device for power cable installation.

[0016] Figure 4 for Figure 3 The utility model is a structural schematic diagram of a hidden positioning plate in a positioning device for installing power cables.

[0017] Figure 5 The utility model is a structural schematic diagram of a positioning plate in a positioning device for installing power cables.

[0018] Figure 6 for Figure 3The figure shows a partially enlarged structural diagram of point A in a positioning device for power cable installation according to the present invention.

[0019] Figure 7 The utility model is a schematic cross-sectional view of a support plate in a positioning device for installing power cables.

[0020] In the figure: 1. Mounting bracket; 10. Ear plate; 11. Strip hole; 12. Connecting hole group; 2. Horizontal bracket; 20. Support plate; 201. Through hole; 21. Support roller; 210. Roller; 23. Locking assembly; 231. Threaded hole; 232. Locking screw; 233. Extrusion plate; 234. Friction surface; 24. Receiving groove; 25. Support vertical plate; 29. ​​Connecting plate; 290. Connecting hole; 3. Positioning plate; 31. Pressing plate; 310. Elastic plate; 311. Arc groove; 32. Elastic member; 33. Guide rod; 330. Limiting end plate. DETAILED DESCRIPTION

[0021] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner, and thus only show components related to the present invention.

[0022] Please refer to Figure 1-4 A positioning device for power cable installation includes a mounting bracket 1 and a plurality of horizontal brackets 2 spaced apart on the mounting bracket 1. Along the extension direction of the horizontal bracket, a plurality of support rollers 21 are spaced apart on the horizontal bracket 2. The axes of the support rollers 21 are parallel to the extension direction of the horizontal bracket, and the support surfaces of the support rollers 21 are higher than the upper surfaces of the horizontal brackets 2.

[0023] As a specific embodiment, the mounting bracket 1 is a plate-like structure, including an ear plate 10 and a strip hole 11 arranged on the ear plate. In actual use, a fixing screw is pre-embedded on the side wall of the cable trench. When fixing the mounting bracket 1, the fixing screw is extended out of the strip hole 11, and then the locking nut is used to fix the mounting bracket 1 to the side wall of the cable trench. A connecting hole group 12 is provided on the mounting bracket, and the connecting hole group includes four threaded holes. The horizontal bracket 2 includes a connecting plate 29, and the connecting plate 29 is provided with four connecting holes 290 corresponding to the four threaded holes of the connecting hole group, which facilitates the connection between the horizontal bracket 2 and the mounting bracket 1. A support roller 21 is provided on the horizontal bracket 2. When laying the cable, the cable is placed on the support roller 21, and the cable is supported by the support roller 21. This setting method facilitates the dragging of the cable, and the cable and the support roller roll friction during dragging, reducing the probability of damage to the cable surface due to sliding friction.

[0024] Preferably, the outer peripheral surface of the support roller 21 is an arc surface adapted to the outer peripheral surface of the cable. Through this setting, the support area of ​​the cable can be increased, and local stress on the cable can be avoided when the cable is subsequently squeezed and positioned by the pressure plate, thereby reducing the deformation of the cable.

[0025] Further, as a preferred embodiment, refer to Figure 4 Two support plates 20 are spaced apart on the horizontal bracket 2, and the two ends of the support roller 21 are rotatably connected to the two support plates 20 respectively. At least one of the support plates 20 is provided with a locking assembly 23, and the locking assembly 23 is used to circumferentially lock the support roller 21.

[0026] Specifically, refer to Figure 6 The roller shaft 210 is coaxially arranged at both ends of the supporting roller, and a through hole 201 is coaxially arranged with the roller shaft. The roller shaft 210 is rotatably arranged in the through hole 201, and the outer peripheral surface of the roller shaft slides with the hole wall. By setting a locking component 23, the roller shaft 210 can be locked in the locked state, thereby preventing the roller shaft from rotating. The two roller shafts are fixedly connected to the supporting roller, thereby preventing the supporting roller from rotating. When adjusting the length of the cable between two adjacent horizontal brackets, the locking component 23 is in the released state. At this time, the supporting roller can rotate automatically. After the adjustment is completed, the locking component 23 is switched to the locked state. At this time, the supporting roller cannot rotate, so that under the action of the friction between the supporting surface of the supporting roller and the surface of the cable, a positioning force can be provided to the cable along the length direction, thereby preventing the supporting roller from rolling arbitrarily and causing the cable length between two adjacent horizontal brackets to change, which is more convenient for laying cables.

[0027] Further, as a specific embodiment, the specific structure of the locking assembly is: Figure 6 、 Figure 7 The support plate 20 is provided with a through hole 201 coaxially arranged with the support roller 21. The locking assembly 23 includes a threaded hole 231 provided on the side of the support plate and perpendicularly intersecting the through hole, and a locking screw 232 threadedly connected to the threaded hole. By rotating the locking screw 232, the locking screw 232 can be adjusted in the axial direction. When the end of the locking screw 232 presses against the roller shaft 210, it is in a locked state. When the end of the locking screw 232 does not apply a pressing force to the roller shaft, it is in a released state.

[0028] Further, as a preferred embodiment, refer to Figure 7The end of the threaded hole 231 that connects to the through hole 201 is further provided with a receiving groove 24. An extrusion plate 233 is disposed within the receiving groove 24. The extrusion plate 233 includes a friction surface 234 disposed opposite the threaded hole. Specifically, the extrusion plate 233 can be made of a metal plate and has an arcuate surface opposite the threaded hole, which serves as the friction surface 234. By providing the extrusion plate 233 and the friction surface 234, the locking screw can push the extrusion plate 233 to bring the friction surface 234 into contact with the outer circumference of the roller shaft 210, thereby increasing the contact area and ensuring a friction effect. The increased contact area also prevents damage to the roller shaft surface caused by localized extrusion.

[0029] Further, as a specific embodiment, refer to Figure 2-Figure 5 , and also includes a positioning plate 3 that is detachably arranged above the supporting roller 21, a pressure plate 31 is arranged between the positioning plate 3 and the supporting roller 21, the pressure plate 31 is vertically guided with the positioning plate 3, and an elastic member 32 is arranged between the positioning plate and the pressure plate, and the elastic member 32 can provide a downward elastic force to the pressure plate 31.

[0030] Specifically, support vertical plates 25 are provided at both ends of the horizontal bracket 2, and the positioning plate 3 is detachably fixed on the top of the support vertical plate. A pressure plate 31 is provided below the positioning plate 3. After the cable is set on the support roller and the cable length between the two adjacent horizontal brackets 2 is adjusted, the positioning plate 3 is installed on the support vertical plate 25. At this time, the male elastic member 32 provides elastic force to the pressure plate 31 so that the pressure plate provides a clamping force on the cable below, thereby positioning the cable and ensuring the stability of the cable laying.

[0031] Furthermore, as a specific embodiment, the positioning plate 3 is provided with a plurality of guide rods 33 corresponding to the plurality of support rollers 21, and the lower ends of the guide rods 33 are connected to the pressure plate 31. The guide rods 33 are vertically guided by the positioning plate 3, the lower ends of the guide rods are threadedly connected to the pressure plate, and the upper ends are threadedly connected to the limit end plate 330.

[0032] Furthermore, the elastic member 32 includes a plurality of compression springs sleeved on a plurality of guide rods 33. As a preferred embodiment, by providing a plurality of guide rods 33 and a plurality of compression springs corresponding to the support rollers, uniform pressure can be applied to the cables below.

[0033] Further, as a preferred embodiment, refer to Figure 5 An elastic plate 310 is bonded to the lower surface of the pressure plate 31, and a plurality of arc grooves 311 are provided on the lower surface of the elastic plate corresponding to the supporting rollers. The elastic plate can be made of rubber material. This setting can protect the cable.

[0034] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A positioning device for installing a power cable, comprising a mounting bracket (1) and a plurality of horizontal brackets (2) spaced apart on the mounting bracket (1), characterized in that: Along the extension direction of the horizontal bracket, a plurality of support rollers (21) are arranged at intervals on the horizontal bracket (2), the axes of the support rollers (21) are parallel to the extension direction of the horizontal bracket, and the support surfaces of the support rollers (21) are higher than the upper surface of the horizontal bracket (2).

2. A positioning device for power cable installation according to claim 1, characterized in that: Two support plates (20) are spaced apart on the horizontal bracket (2), and both ends of the support roller (21) are rotatably connected to the two support plates (20), respectively. At least one of the support plates (20) is provided with a locking assembly (23), and the locking assembly (23) is used for circumferentially locking the support roller (21).

3. A positioning device for power cable installation according to claim 2, characterized in that: The support plate (20) is provided with a through hole (201) coaxially arranged with the support roller (21), and the locking assembly (23) comprises a threaded hole (231) provided on a side surface of the support plate and perpendicularly intersecting the through hole, and a locking screw (232) threadedly connected to the threaded hole.

4. A positioning device for power cable installation according to claim 3, characterized in that: An accommodating groove (24) is further provided at one end of the threaded hole (231) connected to the through hole (201), and an extrusion plate (233) is provided in the accommodating groove (24). The extrusion plate (233) includes a friction surface (234) disposed opposite to the threaded hole.

5. A positioning device for power cable installation according to claim 1, characterized in that: The invention also includes a positioning plate (3) detachably arranged above the supporting roller (21), a pressing plate (31) is arranged between the positioning plate (3) and the supporting roller (21), the pressing plate (31) and the positioning plate (3) are vertically guided and matched, and an elastic member (32) is arranged between the positioning plate and the pressing plate, and the elastic member (32) can provide a downward elastic force to the pressing plate (31).

6. A positioning device for power cable installation according to claim 5, characterized in that: The positioning plate (3) is provided with a plurality of guide rods (33) arranged in one-to-one correspondence with the plurality of support rollers (21), and the lower end of the guide rod (33) is connected to the pressing plate (31).

7. A positioning device for power cable installation according to claim 6, characterized in that: The elastic member (32) comprises a plurality of compression springs sleeved on a plurality of guide rods (33).

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