A substation grounding cable protection device

Abstract

The utility model relates to cable protection and fixed technical field discloses a transformer substation grounding cable protection device including the protection structure for protecting cable, both ends of protection structure all are provided with the clamping structure for preventing loose, the outside of protection structure is provided with the interlocking structure for locking, the clamping structure includes first protection shell, air cylinder, two support bars are fixedly connected in first protection shell inner wall both sides, the outside slide connection has the slide of two support bars one end, two slide top all are fixed with vertical rod, two vertical rod all are fixedly connected with arc clamp, air cylinder fixed mounting is in first protection shell inner wall, the utility model sets up clamped mechanism, realizes two arc clamp's synchronous opposite movement through air cylinder drive combination connecting rod transmission mechanism. This design not only realizes quick clamping and loosening, more ensures that the clamping force that cable two sides bore is always uniform.

Description

Technical Field

[0001] This utility model relates to the field of cable protection and fixing technology, specifically to a substation grounding cable protection device. Background Technology

[0002] This invention relates to a substation grounding cable protection device, belonging to the field of power equipment technology. During the construction and operation and maintenance of substations, the correct connection and reliable protection of grounding cables are crucial to ensuring the safety of personnel and equipment. In the existing technology, grounding cables to be connected to electrical equipment are usually protected by direct burial or simple wrapping. This method is difficult to effectively resist damage caused by factors such as construction misoperation, mechanical impact, and environmental corrosion. Once the grounding cable is damaged, it may lead to increased grounding resistance, failure of the grounding system, and thus equipment failure or even safety accidents. Therefore, there is a need for a special device that can provide comprehensive and high-strength protection for the grounding cable without affecting its conductivity. Some existing protection measures have problems such as loose structure, poor adaptability, and complex installation, and cannot meet the long-term protection needs of the complex environment of substations.

[0003] However, existing grounding cables are generally fixed using traditional bolt fastening methods. This installation method is not only inefficient, but also relies entirely on the operator's experience to judge the clamping degree, making it difficult to ensure uniform clamping force on both sides. Traditional protective tube lengths are fixed and cannot be adjusted to meet the needs of different installation distances. During long-term operation, cables are prone to loosening due to vibration and thermal expansion and contraction, posing safety hazards. Existing devices lack a quick locking and adjustment mechanism, and the disassembly and reinstallation process during maintenance and repair is cumbersome. Therefore, those skilled in the art provide a substation grounding cable protection device to solve the problems of easy loosening of cable protection and inability to adapt to different cable lengths mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide a substation grounding cable protection device to solve the problems in the prior art.

[0005] This utility model provides the following technical solution: a substation grounding cable protection device, including a protection structure for protecting the cable, wherein both ends of the protection structure are provided with clamping structures for preventing loosening, and the outer side of the protection structure is provided with a locking structure for locking; The clamping structure includes a first protective shell and a cylinder. Two support rods are fixedly connected to both sides of the inner wall of the first protective shell. A sliding plate is slidably connected to the outside of one end of each of the two support rods. A vertical rod is fixed to the top of each of the two sliding plates. An arc-shaped clamp is fixedly connected between each of the two vertical rods. The cylinder is fixedly installed on the inner wall of the first protective shell. One of the sliding plates is fixedly connected to the output end of the cylinder. A first connecting rod is rotatably connected to both ends of one of the sliding plates. A second connecting rod is rotatably connected to both ends of the other sliding plate. A rotating plate is rotatably connected to the other end of the second connecting rod. The rotating plate is fixedly connected to one end of the first connecting rod.

[0006] As a preferred embodiment of the above technical solution, rotating rods are fixedly connected to both sides of the inner wall of the first protective shell, and the two rotating plates are rotatably connected inside the two rotating rods. The protective structure includes a telescopic rod, and a second protective shell is slidably connected inside the telescopic rod. Multiple circular holes are opened on one side of the telescopic rod. The locking structure includes a circular frame, and a spring is fixedly connected inside the circular frame. A locking post is fixedly connected to one end of the spring, and an ellipsoid is fixedly connected to one end of the locking post.

[0007] As a preferred embodiment of the above technical solution, both rotating plates are located between the two second connecting rods, and both arc-shaped clamps are fixedly connected to the top of the slide plate.

[0008] As a preferred embodiment of the above technical solution, the first protective shell is fixedly connected to the top of the second protective shell, wherein another first protective shell is fixedly connected to the bottom of the telescopic rod.

[0009] As a preferred embodiment of the above technical solution, the circular frame is fixedly connected inside the bottom end of the second protective shell, and the locking post is engaged inside one of the circular holes.

[0010] As a preferred embodiment of the above technical solution, the protective structure is located between two clamping structures, and both clamping structures are located inside the first protective shell.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention features a clamping mechanism that uses a cylinder-driven linkage to achieve synchronous, opposite-direction movement of the two arc-shaped clamps. This design not only enables rapid clamping and releasing but also ensures that the clamping force on both sides of the cable remains uniform, effectively preventing damage to the cable due to excessive stress on one side or loosening due to insufficient clamping force, thus significantly improving the reliability of the connection.

[0012] Based on the aforementioned beneficial effects, this utility model incorporates a locking mechanism. The protective structure employs a design where a telescopic rod cooperates with a second protective shell, and rapid positioning and locking are achieved through a spring-driven locking pin and a circular hole. This allows the overall length of the device to be flexibly and continuously adjusted according to the on-site installation distance, eliminating the hassle of on-site cutting or splicing, and greatly improving installation efficiency and adaptability to different application scenarios. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a substation grounding cable protection device. Figure 2 A schematic diagram of an arc-shaped clamp for a substation grounding cable protection device; Figure 3 A schematic diagram of a cylinder for a substation grounding cable protection device; Figure 4 A schematic diagram of a circular hole in a substation grounding cable protection device; Figure 5 A schematic diagram of the second protective shell of a substation grounding cable protection device; Figure 6 This is a schematic diagram of a spring in a substation grounding cable protection device.

[0014] In the diagram: 1. Clamping structure; 11. First protective shell; 12. Arc-shaped clamp; 13. Support rod; 14. First connecting rod; 15. Rotating rod; 16. Rotating plate; 17. Second connecting rod; 18. Cylinder; 19. Vertical rod; 110. Slide plate; 2. Protective structure; 21. Second protective shell; 22. Telescopic rod; 23. Circular hole; 3. Engaging structure; 31. Circular frame; 32. Clamping post; 33. Spring; 34. Ellipse. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figures 1-3 As shown, this utility model provides a technical solution: a substation grounding cable protection device, including a protection structure 2 for protecting the cable, with clamping structures 1 for preventing loosening at both ends of the protection structure 2, and a locking structure 3 for locking on the outside of the protection structure 2. This device achieves comprehensive protection for grounding cables through the coordinated operation of three structural parts: the clamping structure 1 at both ends can firmly fix the cable to prevent loosening, the protective structure 2 in the middle provides effective mechanical protection, and the locking structure 3 on the outside ensures the stability of the device during use, forming a complete cable protection system.

[0017] The clamping structure 1 includes a first protective shell 11 and a cylinder 18. Two support rods 13 are fixedly connected to both sides of the inner wall of the first protective shell 11. Slide plates 110 are slidably connected to the outside of one end of the two support rods 13. Uprights 19 are fixed to the top of each of the two slide plates 110. Arc-shaped clamps 12 are fixedly connected between the two uprights 19. The cylinder 18 is fixedly installed on the inner wall of the first protective shell 11. One slide plate 110 is fixedly connected to the output end of the cylinder 18. One slide plate 110 is rotatably connected to both ends of a first connecting rod 14. The other slide plate 110 is rotatably connected to both ends of a second connecting rod 17. A rotating plate 16 is rotatably connected to the other end of the second connecting rod 17. The rotating plate 16 is fixedly connected to one end of the first connecting rod 14.

[0018] The clamping structure 1 is driven by a cylinder 18 and combined with a linkage transmission mechanism to achieve synchronous opposite movement of the two arc-shaped clamps 12. When the cylinder 18 works, it pushes one of the slide plates 110 to slide along the support rod 13, and drives the rotating plate 16 to rotate around the rotating rod 15 through the first connecting rod 14. Then, it drives the other slide plate 110 to move synchronously through the second connecting rod 17, ensuring that the two arc-shaped clamps 12 can clamp the cable evenly and stably, effectively preventing cable damage or loose connection caused by uneven force on one side.

[0019] As one implementation method in this embodiment, please refer to Figures 1-6 As shown, rotating rods 15 are fixedly connected to both sides of the inner wall of the first protective shell 11, and two rotating plates 16 are rotatably connected inside the two rotating rods 15. The protective structure 2 includes a telescopic rod 22, and a second protective shell 21 is slidably connected inside the telescopic rod 22. Multiple round holes 23 are opened on one side of the telescopic rod 22. The locking structure 3 includes a circular frame 31, and a spring 33 is fixedly connected inside the circular frame 31. A locking post 32 is fixedly connected to one end of the spring 33, and an ellipsoid 34 is fixedly connected to one end of the locking post 32.

[0020] The protective structure 2 adopts a telescopic design. Through the sliding cooperation between the telescopic rod 22 and the second protective shell 21, the length of the device can be flexibly adjusted according to the actual installation requirements. The locking structure 3 uses the elastic force of the spring 33 to push the locking post 32 into the round hole 23, realizing the quick locking of the length. The design of the ellipsoid 34 allows the locking post 32 to smoothly slide over the edge of the round hole 23 when adjusting the length, and automatically locks in when aligned, making the operation simple and quick.

[0021] As one implementation method in this embodiment, please refer to Figures 2-3 As shown, both rotating plates 16 are located between the two second connecting rods 17, and both arc-shaped clamps 12 are fixedly connected to the top of the slide plate 110.

[0022] This symmetrical layout ensures a balanced distribution of transmission force, making the movements of the two arc-shaped clamps 12 completely synchronized. When the cylinder 18 is working, through the linkage of the rotating plate 16 and the second connecting rod 17, the two sliding plates 110 can move towards the center or outwards at the same time, ensuring that the cable is subjected to uniform clamping force on both sides, and avoiding cable twisting or local damage caused by uneven clamping force.

[0023] As one implementation method in this embodiment, please refer to Figures 1-4 As shown, the first protective shell 11 is fixedly connected to the top of the second protective shell 21, and another first protective shell 11 is fixedly connected to the bottom of the telescopic rod 22.

[0024] The second protective shell 21 and the telescopic rod 22 not only provide length adjustment function, but also constitute the main protection channel for the cable, completely enclosing the cable and effectively isolating it from mechanical damage and environmental impact from the external environment.

[0025] As one implementation method in this embodiment, please refer to Figures 4-5 As shown, the circular frame 31 is fixedly connected to the inside of the bottom of the second protective shell 21, and the locking post 32 is locked into one of the circular holes 23.

[0026] The installation position of the locking structure 3 is carefully designed. The circular frame 31 is fixed inside the second protective shell 21. The locking post 32, under the action of the spring 33, always maintains contact with the telescopic rod 22. When the telescopic rod 22 is pulled, the locking post 32 will slide on the edge of the circular hole 23. When the circular hole 23 is aligned with the locking post 32, the elastic force of the spring 33 will immediately push the locking post 32 into the circular hole 23 to complete the locking. This design ensures that the device can be reliably fixed at any length position. As one implementation method in this embodiment, please refer to Figures 1-3 As shown, the protective structure 2 is located between the two clamping structures 1, and both clamping structures 1 are located inside the first protective shell 11.

[0027] The overall layout is reasonable and compact. The protective structure 2 is located in the middle and is responsible for the protection and length adjustment of the cable. The clamping structures 1 at both ends are focused on fixing the cable. All moving parts are encapsulated inside the first protective shell 11, which not only protects the internal mechanism from the influence of the external environment, but also improves the safety performance of the equipment, while maintaining a neat and beautiful appearance.

[0028] Working principle: Cylinder 18 serves as the power source. When it is energized or pneumatically supplied, the piston rod extends or retracts. Assuming the cylinder piston rod extends, it pushes a slide plate 110 directly connected to it to slide along the support rod 13 towards the cable. The force transmission is synchronized with the movement. The movement of the slide plate is transmitted to the rotating plate 16 through the first connecting rod 14 at both ends. The rotating plate 16 acts like a lever, rotating around the fixed rotating rod 15. The rotation of the rotating plate pulls the second connecting rod 17 at the other end, thereby causing another slide plate 110 to slide along the support rod towards the cable.

[0029] Composed of a second protective shell 21 and a telescopic rod 22, it forms a telescopic sleeve. Length adjustment: By pulling the telescopic rod, the length of the entire protective device can be changed to adapt to the installation requirements of grounding cables at different locations in the substation. Protective function: This structure encloses the cable, isolating it from the external environment and providing mechanical protection. Simultaneously, the telescopic design itself has a certain buffering and deformation-adapting ability. The locking structure 3 provides telescopic positioning and locking. The core function of this part is to lock the adjusted protective structure. When the telescopic rod 22 is pulled, its multiple circular holes 23 pass sequentially through the locking structure 3 fixed to the second protective shell 21, automatically locking it. The spring 33 inside the locking structure is always in a compressed state, providing an outward thrust to the locking post 32. When the telescopic rod is pulled to a suitable position, so that a certain circular hole is aligned with the locking post, the locking post will quickly pop out and lock into the circular hole 23 under the action of the spring force. The ellipsoid 34 is designed to provide a smooth slope when adjusting the length, making it easier for the locking post to be pressed back into the circular frame, realizing stepless adjustment, and smoothly locking in when aligned with the circular hole. Finally, the two slides are driven synchronously and move towards each other. The upright 19 and arc-shaped clamp 12 on the top of each slide also move synchronously, firmly clamping the cable from both sides. When the cylinder retracts, the opposite action is performed to release the cable.

[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A substation grounding cable protection device, characterized in that: It includes a protective structure (2) for protecting the cable, wherein both ends of the protective structure (2) are provided with clamping structures (1) for preventing loosening, and the outer side of the protective structure (2) is provided with a locking structure (3). The clamping structure (1) includes a first protective shell (11) and a cylinder (18). Two support rods (13) are fixedly connected to both sides of the inner wall of the first protective shell (11). A sliding plate (110) is slidably connected to the outside of one end of the two support rods (13). A vertical rod (19) is fixed to the top of each of the two sliding plates (110). An arc-shaped clamp (12) is fixedly connected between the two vertical rods (19). The cylinder (18) is fixedly installed on the inner wall of the first protective shell (11). One of the sliding plates (110) is fixedly connected to the output end of the cylinder (18). One of the sliding plates (110) is rotatably connected to both ends of a first connecting rod (14). The other sliding plate (110) is rotatably connected to both ends of a second connecting rod (17). A rotating plate (16) is rotatably connected to the other end of the second connecting rod (17). The rotating plate (16) is fixedly connected to one end of the first connecting rod (14).

2. The substation grounding cable protection device according to claim 1, characterized in that: The first protective shell (11) has rotating rods (15) fixedly connected to both sides of its inner wall. The two rotating plates (16) are rotatably connected inside the two rotating rods (15). The protective structure (2) includes a telescopic rod (22). The telescopic rod (22) is slidably connected to a second protective shell (21). The telescopic rod (22) has multiple round holes (23) on one side. The locking structure (3) includes a circular frame (31). The circular frame (31) is fixedly connected to a spring (33). One end of the spring (33) is fixedly connected to a locking post (32). One end of the locking post (32) is fixedly connected to an ellipsoid (34).

3. A substation grounding cable protection device according to claim 2, characterized in that: Both of the rotating plates (16) are located between the two second connecting rods (17), and both of the arc-shaped clamps (12) are fixedly connected to the top of the slide plate (110).

4. A substation grounding cable protection device according to claim 1, characterized in that: The first protective shell (11) is fixedly connected to the top of the second protective shell (21), wherein another first protective shell (11) is fixedly connected to the bottom of the telescopic rod (22).

5. A substation grounding cable protection device according to claim 2, characterized in that: The circular frame (31) is fixedly connected to the bottom of the second protective shell (21), and the locking post (32) is engaged in one of the circular holes (23).

6. A substation grounding cable protection device according to claim 1, characterized in that: The protective structure (2) is located between two clamping structures (1), and both clamping structures (1) are located inside the first protective shell (11).

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