A cable protection device for power engineering

Abstract

This utility model discloses a cable protection device for power engineering, belonging to the technical field of cable protection devices. It includes a cable tray body, a square slot, and a movable support assembly. The movable support assembly provides positioning for cable placement and provides movement support for cable dragging. This utility model, by setting up a cable tray body with a square slot and a movable support assembly, with the movable support assembly installed on the cable tray body, provides support for cable movement during cable laying via guide wheels. The guide wheels rotate under the friction of the cable. Compared to the sliding friction when the cable moves directly along the surface of the cable tray base plate in the traditional method, its rolling friction coefficient is much smaller than the sliding friction coefficient. Therefore, it effectively reduces cable dragging resistance and greatly reduces wear and scratches on the cable outer sheath during laying, ensuring the long-term insulation performance and lifespan of the cable.

Description

Technical Field

[0001] This utility model relates to the technical field of cable protection devices, specifically a cable protection device for power engineering. Background Technology

[0002] Power cables are the "blood vessels" that transmit electrical energy, and their safe and stable operation is crucial. Cable protection devices are a general term for a series of equipment and measures used to prevent, detect, and respond to various faults and abnormalities in cables and their lines. Mechanical and physical cable protection devices include: cable conduits / troughs, cable trays / ladders, cable covers / warning tapes, explosion-proof boxes, and intermediate joint protection boxes, etc. Among them, cable trays are mainly used in factories, tunnels, shafts, and other places to support and lay a large number of cables, making them neat, orderly, and easy to maintain. They include trough type, ladder type, tray type, and mesh type, which are selected according to different laying requirements.

[0003] In actual use, when laying cables, the cables are dragged directly on the base plate of the cable tray, and the cables slide and rub against the base plate, resulting in very high resistance and easy scratches on the outer sheath of the cables. Based on this, a cable protection device for power engineering is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a cable protection device for power engineering in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable protection device for power engineering, including a cable tray body, the bottom plate of the cable tray body having a square slot, the cable tray body having a movable support component installed through the square slot, the movable support component being used to provide positioning for cable placement and to provide movable support for cable dragging; The movable support assembly includes a rectangular frame, guide wheels, and pins; The guide wheel is installed inside the rectangular frame, and the top of the guide wheel protrudes from the top of the rectangular frame. The pin passes through the rectangular frame and the guide wheel from one end of the rectangular frame to the other end of the rectangular frame. The guide wheel and the pin are rotatably connected. A rectangular frame is installed inside the square slot to install the guide wheel and the cable tray body. The cable is placed on top of the guide wheel and dragged. The rotation of the U-shaped elastic block reduces the dragging resistance of the cable.

[0006] As a further embodiment of this utility model: the movable support assembly also includes a concave top plate, a notch groove, and a letter-shaped elastic block; The concave top plates are symmetrically fixed to the top two ends of the rectangular frame, and the notches are symmetrically opened on the top two sides of the rectangular frame, with the notches distributed in the middle of the two concave top plates. The letter-shaped elastic blocks are symmetrically fixed to the bottom of the inner wall of the notch groove; When the rectangular frame is installed inside the square slot, it is connected to the bottom surface of the cable tray body by the concave top plate and the bottom surface of the cable tray body by the U-shaped elastic block, which is used to realize the assembly connection between the rectangular frame and the cable tray body.

[0007] As a further improvement of this utility model: the outer side of the guide wheel is formed with an annular groove for limiting the placement of the cable, and the width of the notch is greater than the cross-sectional width of the annular groove.

[0008] As a further improvement of this utility model: multiple square slots are provided along both the long and wide sides of the cable tray body, and the multiple square slots distributed along the wide side of the cable tray body are staggered.

[0009] As a further improvement of this utility model, the rectangular frame, concave top plate, notch groove, and letter-shaped elastic card block are integrally formed by injection molding.

[0010] Compared with the prior art, the beneficial effects of this utility model are: By setting up a cable tray main body with square slots and a movable support assembly, and installing the movable support assembly on the cable tray main body, the guide wheels provide support for the movement of the cable during cable laying. The guide wheels will rotate under the action of the cable's friction. Compared with the sliding friction when the cable moves directly along the surface of the cable tray base plate in the traditional way, its rolling friction coefficient is much smaller than the sliding friction coefficient. Therefore, it effectively reduces the cable dragging resistance. At the same time, it greatly reduces the wear and scratches on the cable outer sheath during the laying process, ensuring the long-term insulation performance and life of the cable. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the top structure of the mobile support component and the main body of the cable tray in the assembled state of this utility model. Figure 2 This is a schematic diagram of the bottom structure of the mobile support component and the main body of the cable tray in the assembled state of this utility model; Figure 3 This is a schematic diagram showing the disassembly of the mobile support component and the main body of the cable tray of this utility model; Figure 4 This is a schematic diagram of the structure of the mobile support component of this utility model; Figure 5 This is a split diagram of the mobile support component of this utility model.

[0012] In the diagram: 1. Cable tray body; 2. Square slot; 3. Movable support assembly; 301. Rectangular frame; 302. Concave top plate; 303. Notch slot; 304. 7-shaped elastic block; 305. Guide wheel; 306. Pin. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-5 In this embodiment of the utility model, a cable protection device for power engineering includes a cable tray body 1. The bottom plate of the cable tray body 1 is provided with a square slot 2. A movable support component 3 is installed on the cable tray body 1 through the square slot 2. The movable support component 3 is used to provide positioning for the placement of the cable and to provide movable support for the dragging of the cable. The movable support assembly 3 includes a rectangular frame 301, a concave top plate 302, a notch 303, a 7-shaped elastic block 304, a guide wheel 305, and a pin 306; The concave top plate 302 is symmetrically fixed to the top two ends of the rectangular frame 301, and the notch groove 303 is symmetrically opened on the top two sides of the rectangular frame 301, and the notch groove 303 is distributed in the middle of the two concave top plates 302. The 7-shaped elastic blocks 304 are symmetrically fixed to the bottom of the inner wall of the notch groove 303; When the rectangular frame 301 is installed inside the square slot 2, it is attached to the upper surface of the bottom plate of the cable tray body 1 by the concave top plate 302 and the 7-shaped elastic block 304 is engaged with the lower surface of the bottom plate of the cable tray body 1, so as to realize the assembly connection between the rectangular frame 301 and the cable tray body 1. The guide wheel 305 is installed inside the rectangular frame 301, and the top of the guide wheel 305 protrudes from the top of the rectangular frame 301. The pin 306 passes through the rectangular frame 301 and the guide wheel 305 from one end of the rectangular frame 301 to the other end of the rectangular frame 301. The guide wheel 305 and the pin 306 are rotatably connected. The rectangular frame 301 is installed inside the square slot 2 to install the guide wheel 305 and the cable tray body 1. The cable is placed on top of the guide wheel 305 and dragged. The rotation of the 7-shaped elastic block 304 is used to reduce the dragging resistance of the cable.

[0015] In this embodiment, it should be noted that the main body 1 of this cable tray is a common specification cable tray on the market, and its assembly and usage methods are exactly the same, so it will not be described in detail here. Before installing the main body 1 of this cable tray, the movable support assembly 3 is installed through the square slot 2: Take the movable support assembly 3 and insert the rectangular frame 301 from top to bottom, aligning the bottom end with the square slot 2. During this process, the protrusion of the 7-shaped spring clip 304 contacts and presses against the side edge of the square slot 2 (it should be noted that the lower surface of the protrusion of the 7-shaped spring clip 304 has a sloping structure, and the top of the protrusion of the 7-shaped spring clip 304 has a horizontal structure). This pressing force causes the 7-shaped spring clip 304 to deform and contract towards the inside of the rectangular frame 301. This allows the 7-shaped spring clip 304 to pass smoothly through the square slot 2. When the protrusion of the 7-shaped spring clip 304 is located below the cable tray body 1, the 7-shaped spring clip 304 loses external pressure and will reset under the elasticity of its own material. The upper surface of the protrusion of the 7-shaped spring clip 304 fits against the lower surface of the cable tray body 1. At the same time, the concave top plate 302 fits against the upper surface of the bottom plate of the cable tray body 1, thereby completing the installation of the movable support component 3. After all the movable support components 3 are installed, the cable tray body 1 can be assembled and installed in the conventional installation method. Then, when laying the cable, the cable moves along the upper surface of multiple guide rollers 305. During this process, the guide rollers 305 will rotate under the friction of the cable. Since the friction between the cable and the guide rollers 305 is rolling friction, compared with the sliding friction when the cable moves directly along the surface of the cable tray base plate, its rolling friction coefficient is much smaller than the sliding friction coefficient. Therefore, the cable dragging resistance is effectively reduced. At the same time, the wear and scratches on the cable outer sheath during the laying process are greatly reduced, ensuring the long-term insulation performance and life of the cable.

[0016] Please refer to this carefully. Figures 1-5 The outer side of the guide wheel 305 is formed with an annular groove for limiting the placement of the cable, and the width of the notch 303 is greater than the cross-sectional width of the annular groove. Multiple square slots 2 are provided along both the long and wide sides of the cable tray body 1, and the multiple square slots 2 distributed along the wide side of the cable tray body 1 are staggered.

[0017] In this embodiment: the annular groove structure on the outer side of the guide wheel 305 can be used to guide and limit the movement of the cable, so that the two adjacent cables are distributed in parallel and their movements do not interfere with each other, thus improving the flatness of the cable laying. In addition, the structure of multiple square slots 2 distributed in a staggered manner along the wide side of the cable tray body 1 is used to ensure the structural strength of the cable tray body 1.

[0018] Please refer to this carefully. Figures 1-5 The rectangular frame 301, the concave top plate 302, the notch groove 303, and the 7-shaped elastic block 304 are all integrally molded by injection molding.

[0019] In this embodiment: after the rectangular frame 301 is independently formed by injection molding, the guide wheel 305 is assembled with the rectangular frame 301. The production and assembly process is simple and the cost is controllable. In addition, the directional slot 2 can be formed on the cable tray body 1 by stamping process, which can improve the processing based on the existing cable tray production process and facilitate its promotion and use.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cable protection device for power engineering, comprising a cable tray body (1), characterized in that, The bottom plate of the cable tray body (1) is provided with a square slot (2), and the cable tray body (1) is equipped with a movable support assembly (3) through the square slot (2). The movable support assembly (3) is used to provide positioning for the placement of cables and to provide movable support for the dragging of cables. The movable support assembly (3) includes a rectangular frame (301), a guide wheel (305), and a pin (306); The guide wheel (305) is installed inside the rectangular frame (301), and the top of the guide wheel (305) protrudes from the top of the rectangular frame (301). The pin (306) passes through the rectangular frame (301) and the guide wheel (305) from one end of the rectangular frame (301) to the other end of the rectangular frame (301). The guide wheel (305) and the pin (306) are rotatably connected. The rectangular frame (301) is installed inside the square slot (2) to install the guide wheel (305) and the cable tray body (1). The cable is placed on top of the guide wheel (305) and dragged. The rotation of the 7-shaped elastic block (304) is used to reduce the drag resistance of the cable.

2. The power engineering cable protection device according to claim 1, characterized in that, The movable support assembly (3) also includes a concave top plate (302), a notch (303), and a 7-shaped elastic block (304); The concave top plate (302) is symmetrically fixed at both ends of the top of the rectangular frame (301), and the notch (303) is symmetrically opened on both sides of the top of the rectangular frame (301), and the notch (303) is distributed in the middle of the two concave top plates (302). The 7-shaped elastic block (304) is symmetrically fixed to the bottom of the inner wall of the notch (303); When the rectangular frame (301) is installed inside the square slot (2), the concave top plate (302) is attached to the upper surface of the bottom plate of the cable tray body (1), and the 7-shaped elastic block (304) is engaged with the lower surface of the bottom plate of the cable tray body (1) to realize the assembly connection between the rectangular frame (301) and the cable tray body (1).

3. The power engineering cable protection device according to claim 2, characterized in that, The outer side of the guide wheel (305) is formed with an annular groove for limiting the placement of the cable, and the width of the notch (303) is greater than the cross-sectional width of the annular groove.

4. A power engineering cable protection device according to claim 1, characterized in that, The square slots (2) are provided in multiple directions along both the long and wide sides of the cable tray body (1), and the multiple square slots (2) distributed along the wide side of the cable tray body (1) are staggered.

5. A power engineering cable protection device according to claim 2, characterized in that, The rectangular frame (301), concave top plate (302), notch groove (303), and 7-shaped elastic block (304) are integrally formed by injection molding.

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