A disconnector

By improving the structural design of the disconnecting switch, the installation and disassembly process is simplified, ensuring a tight connection and providing protection. This solves the problems of cumbersome installation and loose connection of traditional disconnecting switches, and improves the operating efficiency and safety of the power system.

CN224417692UActive Publication Date: 2026-06-26ZHEJIANG LUGAO ELECTRIC POWER TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG LUGAO ELECTRIC POWER TECH CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Traditional disconnect switches are cumbersome to install and remove, have loose connections, are prone to loosening, pose safety hazards, and lack effective protection, affecting the operating efficiency and reliability of the power system.

Method used

The design incorporates a fixed plate that mates with the plug and limit hole of the disconnect switch body, a sliding rod and handle, a threaded rod and metal pad for secure connection, a protective cover, and a stable connection between the limit block and spring. This simplifies the installation and disassembly process and ensures a tight connection and protection.

Benefits of technology

It improves installation and maintenance efficiency, reduces labor intensity, reduces contact resistance and safety hazards, enhances equipment stability and lifespan, and ensures reliable operation of the power system.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224417692U_ABST
    Figure CN224417692U_ABST
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Abstract

The utility model relates to the technical field of disconnecting switch, concretely is a disconnecting switch, including fixed plate, the fixed plate upside down symmetry has seted up mounting hole, the fixed plate front side outer wall all uniformly fixed installation has a plurality of insertion blocks, the disconnecting switch body rear side outer wall has seted up with the insertion block cooperation uses the limiting hole, the disconnecting switch body inside still uniformly has seted up a plurality of cavities, the cavity in sliding has seted up slide, the slide side wall fixed installation has inserted rod, the insertion block has seted up with inserted rod cooperation uses the insertion hole. The device is through the insertion block on the fixed plate and the limiting hole cooperation on the disconnecting switch body, and the inserted rod and the insertion hole's joint structure, cooperate slide and handle's design, the staff only needs to pull handle to be able to easily realize the installation and disassembly of disconnecting switch body, need not complex tool and tedious procedure, greatly reduced the labor intensity, improved installation and overhauled efficiency, help to guarantee the operation efficiency of electric power system.
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Description

Technical Field

[0001] This utility model relates to the field of disconnecting switch technology, specifically to a disconnecting switch. Background Technology

[0002] In power systems, disconnect switches play a crucial role as an important electrical device. They are mainly used for isolating power sources, switching operations, and connecting and disconnecting circuits with no or low current, providing reliable protection for the safe operation and maintenance of power equipment. With the rapid development of the power industry, higher requirements have been placed on the performance, ease of installation, and safety of disconnect switches.

[0003] Traditional disconnect switches are often cumbersome to install and remove, requiring complex tools and numerous steps. This not only increases the workload of workers but also prolongs the installation and maintenance time, impacting the operational efficiency of the power system. Furthermore, traditional methods may result in loose connections between the disconnect switch and conductors, leading to increased contact resistance and potential safety hazards such as overheating and arcing, severely affecting the stable operation of the power system. Moreover, disconnect switches are constantly exposed to the external environment without effective protection, making them susceptible to corrosion from dust, moisture, and other external factors, reducing their lifespan and reliability. Therefore, we propose a new type of disconnect switch. Utility Model Content

[0004] The purpose of this invention is to provide an isolating switch to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a fixing plate with symmetrical mounting holes on its upper and lower sides. A disconnector switch body is detachably mounted on the front outer wall of the fixing plate. Several insert blocks are uniformly fixedly mounted on the front outer wall of the fixing plate. A limiting hole for cooperating with the insert blocks is provided on the rear outer wall of the disconnector switch body. Several cavities are also uniformly provided inside the disconnector switch body. A sliding plate is slidably mounted in each cavity. An insert rod is fixedly mounted on the side wall of the sliding plate. An insertion hole for cooperating with the insert rod is provided on the insert block. A sliding rod is fixedly mounted on the outer wall of the sliding plate away from the insert rod. The sliding rod penetrates the side wall of the disconnector switch body and is slidably connected to the side wall of the disconnector switch body. A handle is fixedly mounted at the top end of the sliding rod.

[0006] Preferably, a fixing block is fixedly installed on the outer wall of the front side of the fixing plate, and a first limiting block is fixedly installed on the inner side of the rear side of the disconnecting switch body, located above and below the fixing block. Several slots are evenly opened on the fixing block, and a telescopic rod is fixedly installed on the inner wall of the slot. An installation plate is fixedly installed at the end of the telescopic arm of the telescopic rod, and a second limiting block that cooperates with the first limiting block is fixedly installed on the outer wall of the installation plate.

[0007] Preferably, a first spring is sleeved on the outside of the slide rod inside the cavity, one end of the first spring is fixedly connected to the slide plate, and the other end of the first spring is fixedly connected to the inner wall of the cavity.

[0008] Preferably, a second spring is sleeved on the outside of the telescopic rod, one end of the second spring is fixedly connected to the slot, and the other end of the second spring is fixedly connected to the mounting plate.

[0009] Preferably, the disconnect switch body has symmetrically formed mounting cavities on its upper and lower sides, and a threaded hole is formed on the side wall of the mounting cavity on the disconnect switch body. A threaded rod is provided in the threaded hole through a threaded connection, and a metal pad is rotatably provided at the end of the threaded rod inside the mounting cavity.

[0010] Preferably, a protective cover is also inserted into the front side of the isolating switch body.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: Through the cooperation of the plug on the fixing plate with the limiting hole on the disconnecting switch body, and the snap-fit ​​structure between the plug rod and the plug hole, combined with the design of the sliding rod and handle, workers can easily install and disassemble the disconnecting switch body simply by pulling the handle, without the need for complex tools and cumbersome steps. This greatly reduces labor intensity, improves installation and maintenance efficiency, and helps ensure the operational efficiency of the power system. Simultaneously, the metal pads at the ends of the threaded rods, located within the mounting cavities on the upper and lower sides of the disconnecting switch body, press the conductors together, ensuring a tight connection between the disconnecting switch body and the conductors. This effectively reduces contact resistance, minimizes safety hazards such as overheating and arcing, and improves the stability and safety of equipment operation. Furthermore, the cooperation of the fixing block with the first and second limiting blocks, along with the action of the telescopic rod and the second spring, makes the connection between the disconnecting switch body and the fixing plate more stable, further improving the installation quality of the disconnecting switch and ensuring that it will not loosen due to vibration or other reasons during operation, thus guaranteeing the reliable operation of the power system.

[0012] In addition, the protective cover inserted into the front of the disconnect switch body can, on the one hand, protect the disconnect switch body from external factors such as dust and moisture, and extend the service life of the equipment; on the other hand, it facilitates labeling, making it easier for staff to manage and maintain numerous disconnect switches, thus improving the management efficiency of the power system. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0016] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0017] Figure 5 For the present utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0018] The components represented by each number in the attached diagram are listed below: 1. Fixing plate; 2. Mounting hole; 3. Disconnecting switch body; 4. Mounting cavity; 5. Threaded rod; 6. Metal pad; 7. Protective cover; 8. Cavity; 9. Slide plate; 10. Insert block; 11. Insert rod; 12. Insert hole; 13. Slide rod; 14. First spring; 15. Handle; 16. Fixing block; 17. First limiting block; 18. Hollow groove; 19. Telescopic rod; 20. Second spring; 21. Mounting plate; 22. Second limiting block. Detailed Implementation

[0019] 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.

[0020] This utility model provides a technical solution: such as Figures 1-5 The disconnect switch shown includes a fixing plate 1. The fixing plate 1 has symmetrical mounting holes 2 on its upper and lower sides. The operator can use fastening mechanisms such as fixing bolts to install the fixing plate 1 in a suitable position through the mounting holes 2.

[0021] A disconnector switch body 3 is detachably mounted on the front outer wall of the fixing plate 1. The disconnector switch body 3 has symmetrically opened mounting cavities 4 on its upper and lower sides. A threaded hole is opened on the side wall of the mounting cavity 4 on the disconnector switch body 3. A threaded rod 5 is installed in the threaded hole through a threaded connection. A metal pad 6 is rotatably installed at the end of the threaded rod 5 inside the mounting cavity 4. Under the action of the metal pad 6, the connection quality between the disconnector switch body 3 and the wire is ensured, thereby ensuring the efficiency of the disconnector switch body 3.

[0022] A plurality of insert blocks 10 are evenly fixedly installed on the front outer wall of the fixing plate 1. A limiting hole for cooperating with the insert blocks 10 is provided on the rear outer wall of the disconnecting switch body 3. A plurality of cavities 8 are also evenly provided inside the disconnecting switch body 3. A sliding plate 9 is slidably disposed in each cavity 8. An insert rod 11 is fixedly installed on the side wall of the sliding plate 9. An insertion hole 12 for cooperating with the insert rod 11 is provided on the insert block 10. At this time, the connection quality between the disconnecting switch body 3 and the fixing plate 1 is ensured by the action of the insert rod 11 and the insertion hole 12, thereby ensuring the installation quality of the disconnecting switch body 3. The outer wall of the sliding plate 9 away from the insert rod 11 is fixedly... A sliding rod 13 is fixedly installed, which passes through the side wall of the disconnector switch body 3 and is slidably connected to the side wall of the disconnector switch body 3. When the sliding rod 13 is moved, the plug rod 11 can be moved by the sliding plate 9, which facilitates the disassembly of the disconnector switch body 3 by the staff. A first spring 14 is sleeved on the outside of the sliding rod 13 inside the cavity 8. One end of the first spring 14 is fixedly connected to the sliding plate 9, and the other end of the first spring 14 is fixedly connected to the inner wall of the cavity 8. At this time, under the action of the first spring 14, the connection quality between the plug rod 11 and the plug block 10 is guaranteed, thereby ensuring the installation quality of the disconnector switch body 3.

[0023] A handle 15 is fixedly installed at the top end of the slide bar 13. The slide plate 9 can be moved by the handle 15, so that the plug rod 11 can be moved out of the plug hole 12, which makes it convenient for the staff to install and disassemble the disconnect switch body 3.

[0024] A protective cover 7 is also inserted into the front side of the disconnect switch body 3. Under the action of the protective cover 7, the disconnect switch body 3 can play a certain protection role, thereby ensuring the efficiency of the disconnect switch body 3.

[0025] A fixing block 16 is fixedly installed on the outer wall of the front side of the fixing plate 1. A first limiting block 17 is also fixedly installed on the inner side of the rear side of the disconnecting switch body 3, above and below the fixing block 16. Several slots 18 are evenly opened on the fixing block 16. A telescopic rod 19 is fixedly installed on the inner wall of the slot 18. An installation plate 21 is fixedly installed at the end of the telescopic arm of the telescopic rod 19. A second limiting block 22 that cooperates with the first limiting block 17 is fixedly installed on the outer wall of the installation plate 21. Under the action of the first limiting block 17 and the second limiting block 22, the connection quality between the disconnecting switch body 3 and the fixing plate 1 is further improved, thereby further improving the installation quality of the disconnecting switch body 3. A second spring 20 is sleeved on the outer side of the telescopic rod 19. One end of the second spring 20 is fixedly connected to the slot 18, and the other end of the second spring 20 is fixedly connected to the installation plate 21.

[0026] Working principle: The operator first installs the fixing plate 1 into the appropriate position through the mounting holes 2 symmetrically opened on the upper and lower sides, using fixing bolts and other fastening mechanisms. When installing the disconnecting switch body 3, the limiting hole on its rear side is aligned with the insert block 10 on the front outer wall of the fixing plate 1 and inserted. At the same time, the fixing block 16 also enters the rear interior of the disconnecting switch body 3. During the insertion process, the first limiting block 17 will squeeze the second limiting block 22, causing the telescopic rod 19 to retract and the second spring 20 to be compressed. When the limiting hole and the insert block 10 are fully engaged, under the elastic force of the second spring 20, the telescopic rod 19 extends, pushing the mounting plate 21 to move, so that the second limiting block 22 and the first limiting block 17 are tightly engaged, further improving the connection quality between the disconnecting switch body 3 and the fixing plate 1.

[0027] Inside the disconnector switch body 3, the first spring 14 pushes the slide plate 9, causing the plug rod 11 to be inserted into the socket 12 on the plug block 10, ensuring a stable connection between the disconnector switch body 3 and the fixing plate 1. When it is necessary to disassemble the disconnector switch body 3, the operator can pull the handle 15 to move the slide rod 13, which in turn moves the slide plate 9, so that the plug rod 11 can be removed from the socket 12 and easily disassembled.

[0028] The mounting cavities 4 symmetrically opened on the upper and lower sides of the disconnect switch body 3 are used to connect the wires. By rotating the threaded rod 5, the metal pad 6 at the end of the threaded rod 5 inside the mounting cavity 4 presses the wires to ensure the connection quality. In addition, the protective cover 7 inserted into the front of the disconnect switch body 3 can play a certain protective role, and at the same time facilitate marking and improve the efficiency of use.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disconnecting switch, comprising a fixing plate (1), characterized in that: The fixing plate (1) has symmetrical mounting holes (2) on its upper and lower sides. The fixing plate (1) has a detachable disconnector body (3) on its front outer wall. Several plug blocks (10) are evenly fixed on the front outer wall of the fixing plate (1). The disconnector body (3) has a limiting hole for use with the plug blocks (10) on its rear outer wall. Several cavities (8) are evenly opened inside the disconnector body (3). A sliding plate (9) is slidably arranged in the cavity (8). A plug rod (11) is fixedly installed on the side wall of the sliding plate (9). The plug block (10) has a plug hole (12) for use with the plug rod (11). A sliding rod (13) is fixedly installed on the outer wall of the sliding plate (9) away from the plug rod (11). The sliding rod (13) passes through the side wall of the disconnect switch body (3) and is slidably connected to the side wall of the disconnect switch body (3). A handle (15) is fixedly installed at the top end of the sliding rod (13). A fixing block (16) is fixedly installed on the front outer wall of the fixing plate (1). A first limiting block (17) is also fixedly installed on the rear inner side of the disconnect switch body (3) above and below the fixing block (16). Several slots (18) are evenly opened on the fixing block (16). A telescopic rod (19) is fixedly installed on the inner wall of the slot (18). An installation plate (21) is fixedly installed at the end of the telescopic arm of the telescopic rod (19). A second limiting block (22) that cooperates with the first limiting block (17) is fixedly installed on the outer wall of the installation plate (21).

2. The disconnecting switch according to claim 1, characterized in that: The slide bar (13) is fitted with a first spring (14) inside the cavity (8) on its outer side. One end of the first spring (14) is fixedly connected to the slide plate (9), and the other end of the first spring (14) is fixedly connected to the inner wall of the cavity (8).

3. The disconnecting switch according to claim 1, characterized in that: The telescopic rod (19) is fitted with a second spring (20) on its outer side. One end of the second spring (20) is fixedly connected to the slot (18), and the other end of the second spring (20) is fixedly connected to the mounting plate (21).

4. A disconnecting switch according to claim 1, characterized in that: The disconnect switch body (3) has symmetrically opened mounting cavities (4) on its upper and lower sides. A threaded hole is opened on the side wall of the mounting cavity (4) on the disconnect switch body (3). A threaded rod (5) is provided in the threaded hole through a threaded connection. A metal pad (6) is rotatably provided at the end of the threaded rod (5) inside the mounting cavity (4).

5. A disconnecting switch according to claim 1, characterized in that: A protective cover (7) is also inserted into the front side of the isolating switch body (3).