High-voltage switch contact pressure adjusting mechanism and pressure sensor

Abstract

The utility model provides a high-voltage switch contact pressure adjusting mechanism and a pressure sensor, and relates to the technical field of high-voltage switch equipment, and the high-voltage switch contact pressure adjusting mechanism comprises a first connecting seat connected with a high-voltage switch contact, a telescopic adjusting structure of the first connecting seat, and a limiting ring fixedly connected with the bottom of the surface of the telescopic adjusting structure. The top of the surface of the telescopic adjusting structure is movably connected with a pressure plate. The surface of the telescopic adjusting structure is sleeved with a reset spring, the reset spring is located between the pressure plate and the limiting ring, and the bottom of the left side of the telescopic adjusting structure is fixedly connected with a second connecting base movably connected with the high-voltage switchgear. Through the arrangement of the first connecting base, the telescopic adjusting structure, the limiting ring, the pressure plate, the reset spring and the second connecting base, the problems that a mechanical spring structure is mostly adopted for contact pressure adjustment of existing high-pressure switch pressure adjusting equipment, adjustment is inconvenient and low in precision, and meanwhile, shutdown disassembly is usually needed for pressure measurement, and real-time monitoring cannot be achieved are solved.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage switchgear technology, and in particular to a high-voltage switch contact pressure regulating mechanism and pressure sensor. Background Technology

[0002] High-voltage switchgear refers to electrical equipment with a rated voltage of 1kV and above, mainly used for breaking and closing conductive circuits. It is a general term for high-voltage switches, their corresponding control, measurement, protection, and regulation devices, as well as auxiliary components, enclosures, and supports, and their electrical and mechanical connections. It is a crucial control device for connecting and disconnecting circuits and isolating faults. High-voltage switchgear generally includes high-voltage circuit breakers, disconnecting switches, load switches, fuses, and high-voltage switchgear cabinets.

[0003] In existing technologies, pressure regulation of high-voltage switchgear requires the use of pressure regulating equipment. However, the contact pressure regulation of existing high-voltage switchgear mostly adopts a mechanical spring structure, which is inconvenient to adjust and has low accuracy. At the same time, pressure measurement usually requires stopping the machine and disassembling, making real-time monitoring impossible. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a high-voltage switch contact pressure regulating mechanism and pressure sensor, which facilitates pressure adjustment and enables real-time pressure measurement. This solves the problems that existing high-voltage switch pressure regulating devices often use mechanical spring structures for contact pressure adjustment, which are inconvenient to adjust and have low accuracy. At the same time, pressure measurement usually requires stopping the machine for disassembly, making real-time monitoring impossible.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-voltage switch contact pressure adjustment mechanism and pressure sensor, including a first connecting seat connected to the high-voltage switch contact, a telescopic adjustment structure of the first connecting seat, a limit ring fixedly connected to the bottom of the surface of the telescopic adjustment structure, and a pressure plate movably connected to the top of the surface of the telescopic adjustment structure.

[0006] A reset spring is fitted on the surface of the telescopic adjustment structure. The reset spring is located between the pressure plate and the limit ring. A second connecting seat that is movably connected to a high-voltage switchgear is fixedly connected to the bottom left side of the telescopic adjustment structure.

[0007] Furthermore, the telescopic adjustment structure includes a fixed rod, the top of which is fixedly connected to the bottom of the first connecting seat. A sleeve is fitted onto the surface of the fixed rod, the bottom left side of which is fixedly connected to the right side of the second connecting seat. A servo motor is fixedly connected to the bottom of the sleeve, the output end of which passes through the sleeve and is fixedly connected to a drive shaft. The surface of the drive shaft is threaded, and a threaded sleeve is threaded onto the top of the drive shaft surface. A limit plate is provided at the bottom of the threaded sleeve, the limit plate being arranged in a cross shape. The surface of the limit plate is fixedly connected to the inner wall of the sleeve. A return spring is fitted onto the surface of the sleeve. The interior of the pressure plate is movably connected to the top of the fixed rod surface, and the bottom of the sleeve surface is fixedly connected to the interior of the limit ring.

[0008] Furthermore, the fixed rod has an opening inside that cooperates with the limiting plate, and a dustproof folding plate is fixedly connected to the top of the limiting plate. The dustproof folding plate is located inside the opening, and the inner wall of the sleeve has a limiting groove that cooperates with the limiting plate.

[0009] Furthermore, a limiting sleeve for limiting the threaded sleeve is fitted on the surface of the threaded sleeve, the bottom of the limiting sleeve is fixedly connected to the top of the limiting plate, and a limiting block is fixedly connected to the top of the drive shaft.

[0010] Furthermore, a coupling is connected between the drive shaft and the servo motor, and a protective shell is fitted onto the surface of the servo motor, with the top of the protective shell fixedly connected to the bottom of the sleeve surface.

[0011] A pressure sensor for a high-voltage switch contact pressure regulating mechanism includes a pressure sensor body, the surface of which is coated with an anti-interference coating, and a fixing plate fixedly connected to the surface of the pressure sensor body. The fixing plate is located on top of a pressure plate, and the interior of the fixing plate is fixedly connected to the top of the surface of a fixing rod.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model, by setting a first connecting seat, a telescopic adjustment structure, a limit ring, a pressure plate, a return spring, and a second connecting seat, can achieve stable connection and flexible adjustment of high-voltage switch contacts. The design of the telescopic adjustment structure allows adjustment of the relative position between the connecting seat and the high-voltage switch contacts according to actual needs, improving the adaptability and flexibility of the connection. The combined use of the limit ring and the pressure plate ensures the stability and safety of the telescopic adjustment structure during the adjustment process. The return spring not only provides continuous elastic support for the connection after adjustment, ensuring the tightness of the connection, but also acts as a buffer when subjected to external impact, protecting the connection structure from damage. The movable connection between the second connecting seat and the high-voltage switchgear further enhances the flexibility and reliability of the entire connection structure.

[0014] 2. This utility model, through the setting of a telescopic adjustment structure, can effectively achieve precise and stable adjustment function. The transmission shaft is driven to rotate by a servo motor. Since the surface of the transmission shaft is threaded, the screw sleeve moves up and down along the transmission shaft under the action of the thread, thereby driving the sleeve and the second connecting seat connected to it to adjust the height. The movable connection between the fixed rod and the sleeve, as well as the fixed connection between the limiting plate and the inner wall of the sleeve, enhance the stability of the structure and ensure that there is no shaking or deviation during the adjustment process. The setting of the reset spring can provide a certain buffer and reset effect after the adjustment is completed, protecting the structure from accidental impact. The movable connection design between the pressure plate and the fixed rod makes it convenient to apply force to the pressure sensor body, thereby achieving the purpose of monitoring pressure.

[0015] 3. By setting up an opening, a dustproof baffle, and a limiting groove, this utility model can effectively prevent dust from entering the inside of the sleeve, improve the cleanliness and service life of the equipment, and enhance the stability and firmness of the structure by setting up an opening, a dustproof baffle, and a limiting groove, making the whole device safer and more reliable.

[0016] 4. By setting a limiting sleeve and a limiting block, this utility model can ensure the stable position of the screw sleeve on the transmission shaft and prevent it from loosening or falling off. The fixed connection between the bottom of the limiting sleeve and the top of the limiting plate, as well as the fixed connection between the limiting block and the top of the transmission shaft, further enhance the stability of the structure.

[0017] 5. By setting up a coupling and a protective shell, this utility model ensures the stability and efficiency of power transmission. The protective shell covering the surface of the servo motor effectively protects the servo motor from interference and damage from the external environment, thereby improving the service life of the motor.

[0018] 6. This utility model effectively improves the anti-interference capability of the pressure sensor by setting up a pressure sensor body, an anti-interference coating, and a fixing plate, ensuring the accuracy of the measurement data. Through the fixed connection design of the fixing plate and the fixing rod, the pressure sensor body is firmly installed on the top of the pressure plate, which enhances the stability and reliability of the structure, avoids sensor displacement or damage caused by external factors, and thus extends the service life of the sensor. Attached Figure Description

[0019] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 A 3D view of the telescopic adjustment structure;

[0022] Figure 3 A three-dimensional view of the fixing plate and the pressure plate;

[0023] Figure 4 This is a cross-sectional view of the casing;

[0024] Figure 5 This is a cross-sectional view of the limiting sleeve.

[0025] In the diagram: 1. First connecting seat; 2. Limiting ring; 3. Return spring; 4. Second connecting seat; 5. Fixing rod; 6. Sleeve; 7. Servo motor; 8. Drive shaft; 9. Screw sleeve; 10. Limiting plate; 11. Opening; 12. Dustproof folding plate; 13. Limiting groove; 14. Limiting sleeve; 15. Limiting block; 16. Coupling; 17. Protective shell; 18. Pressure sensor body; 19. Fixing plate; 20. Pressure plate. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] A pressure regulating mechanism and pressure sensor for a high-voltage switch contact includes a first connecting seat 1 connected to the high-voltage switch contact, a telescopic adjustment structure for the first connecting seat 1, a limit ring 2 fixedly connected to the bottom of the surface of the telescopic adjustment structure, and a pressure plate 20 movably connected to the top of the surface of the telescopic adjustment structure.

[0029] A reset spring 3 is fitted on the surface of the telescopic adjustment structure. The reset spring 3 is located between the pressure plate 20 and the limit ring 2. A second connecting seat 4, which is movably connected to the high-voltage switchgear, is fixedly connected to the bottom left side of the telescopic adjustment structure.

[0030] Please see Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 2 A 3D view of the telescopic adjustment structure; Figure 3 A three-dimensional view of the fixing plate and the pressure plate; Figure 4 This is a cross-sectional view of the casing; Figure 5 This is a cross-sectional view of the limiting sleeve.

[0031] The telescopic adjustment structure includes a fixed rod 5, the top of which is fixedly connected to the bottom of the first connecting seat 1. A sleeve 6 is fitted onto the surface of the fixed rod 5. The bottom left side of the sleeve 6 is fixedly connected to the right side of the second connecting seat 4. A servo motor 7 is fixedly connected to the bottom of the sleeve 6. The output end of the servo motor 7 passes through the sleeve 6 and is fixedly connected to a drive shaft 8. The surface of the drive shaft 8 is threaded. A threaded sleeve 9 is threaded onto the top of the surface of the drive shaft 8. A limit plate 10 is provided at the bottom of the threaded sleeve 9. The limit plate 10 is arranged in a cross shape. The surface of the limit plate 10 is fixedly connected to the inner wall of the sleeve 6. A return spring 3 is fitted onto the surface of the sleeve 6. The inside of the pressure plate 20 is movably connected to the top of the surface of the fixed rod 5. The bottom of the surface of the sleeve 6 is connected to the limit ring 2. The internal fixed connection enables precise and stable adjustment. The servo motor 7 drives the transmission shaft 8 to rotate. Due to the thread on the surface of the transmission shaft 8, the screw sleeve 9 moves up and down along the transmission shaft 8 under the action of the thread, thereby driving the sleeve 6 and the second connecting seat 4 connected to it to adjust the height. The movable connection between the fixed rod 5 and the sleeve 6, as well as the fixed connection between the limiting plate 10 and the inner wall of the sleeve 6, enhance the stability of the structure and ensure that there will be no shaking or deviation during the adjustment process. The reset spring 3 can provide a certain buffer and reset effect after the adjustment is completed, protecting the structure from accidental impact. The movable connection design between the pressure plate 20 and the fixed rod 5 makes it convenient to apply force to the pressure sensor body 18, thereby achieving the purpose of monitoring pressure.

[0032] The fixed rod 5 has an opening 11 inside that works with the limiting plate 10. A dustproof folding plate 12 is fixedly connected to the top of the limiting plate 10. The dustproof folding plate 12 is located inside the opening 11. The inner wall of the sleeve 6 has a limiting groove 13 that works with the limiting plate 10. This effectively prevents dust from entering the sleeve 6, improving the cleanliness and service life of the equipment. The design of the limiting plate 10 working with the opening 11 and the limiting groove 13 enhances the stability and robustness of the structure, making the entire device safer and more reliable.

[0033] The surface of the threaded sleeve 9 is fitted with a limiting sleeve 14 to limit the threaded sleeve 9. The bottom of the limiting sleeve 14 is fixedly connected to the top of the limiting plate 10. The top of the drive shaft 8 is fixedly connected to a limiting block 15, which can ensure the stable position of the threaded sleeve 9 on the drive shaft 8 and prevent it from loosening or falling off. The fixed connection between the bottom of the limiting sleeve 14 and the top of the limiting plate 10, as well as the fixed connection between the limiting block 15 and the top of the drive shaft 8, further enhance the stability of the structure.

[0034] A coupling 16 connects the drive shaft 8 and the servo motor 7. A protective shell 17 is fitted on the surface of the servo motor 7. The top of the protective shell 17 is fixedly connected to the bottom of the sleeve 6, ensuring the stability and efficiency of power transmission. The protective shell 17 fitted on the surface of the servo motor 7 effectively protects the servo motor 7 from interference and damage from the external environment, and improves the service life of the motor.

[0035] A pressure sensor for a high-voltage switch contact pressure regulating mechanism includes a pressure sensor body 18. The surface of the pressure sensor body 18 is coated with an anti-interference coating. A fixing plate 19 is fixedly connected to the surface of the pressure sensor body 18. The fixing plate 19 is located on top of a pressure plate 20. The interior of the fixing plate 19 is fixedly connected to the top surface of a fixing rod 5, which effectively improves the anti-interference capability of the pressure sensor and ensures the accuracy of the measurement data. Through the fixed connection design between the fixing plate 19 and the fixing rod 5, the pressure sensor body 18 is stably installed on top of the pressure plate 20, enhancing the stability and reliability of the structure and avoiding sensor displacement or damage caused by external factors, thereby extending the service life of the sensor.

[0036] Working Principle: The high-voltage switch contact pressure regulating mechanism of this utility model achieves precise lifting and lowering adjustment through the drive of servo motor 7. When servo motor 7 starts, its output end drives the transmission shaft 8 to rotate. Since the surface of the transmission shaft 8 is threaded, the screw sleeve 9 moves up and down along the transmission shaft 8 under the action of the thread. The screw sleeve 9 is fixedly connected to the limiting plate 10, thereby driving the sleeve 6 and the second connecting seat 4 and the first connecting seat 1 connected thereto to lift and lower, thereby realizing the pressure adjustment of the high-voltage switch contact. During the adjustment process, the movable connection between the fixed rod 5 and the sleeve 6 and the fixed connection between the limiting plate 10 and the inner wall of the sleeve 6 enhance the stability of the structure, ensuring that there will be no shaking or deviation during the adjustment process. The setting of the return spring 3 can provide a certain buffer and reset effect after the adjustment is completed, protecting the structure from accidental impact. The movable connection between the pressure plate 20 and the fixed rod 5 The connection design facilitates the application of force to the pressure sensor body 18 to achieve the purpose of pressure monitoring. The pressure sensor body 18 is fixedly connected to the fixing rod 5 through the fixing plate 19 and is firmly installed on the top of the pressure plate 20, which effectively improves the anti-interference ability of the pressure sensor and ensures the accuracy of the measurement data. On the drive shaft 8, the surface of the screw sleeve 9 is fitted with a limiting sleeve 14, which is fixedly connected to the limiting plate 10. At the same time, the top of the drive shaft 8 is fixedly connected with a limiting block 15, which can ensure the stable position of the screw sleeve 9 on the drive shaft 8 and prevent it from loosening or falling off, thus enhancing the structural stability. The drive shaft 8 and the servo motor 7 are connected by a coupling 16, which ensures the stability and efficiency of power transmission. The protective shell 17 fitted on the surface of the servo motor 7 effectively protects the servo motor 7 from interference and damage from the external environment and improves the service life of the motor.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-voltage switch contact pressure regulating mechanism, characterized in that: It includes a first connecting seat (1) connected to a high-voltage switch contact, a telescopic adjustment structure of the first connecting seat (1), a limit ring (2) fixedly connected to the bottom of the surface of the telescopic adjustment structure, and a pressure plate (20) movably connected to the top of the surface of the telescopic adjustment structure. The surface of the telescopic adjustment structure is fitted with a reset spring (3), which is located between the pressure plate (20) and the limit ring (2). The bottom left side of the telescopic adjustment structure is fixedly connected to a second connecting seat (4) that is movably connected to the high-voltage switchgear.

2. The high-voltage switch contact pressure regulating mechanism according to claim 1, characterized in that: The telescopic adjustment structure includes a fixed rod (5), the top of which is fixedly connected to the bottom of the first connecting seat (1), a sleeve (6) is fitted on the surface of the fixed rod (5), the bottom left side of the sleeve (6) is fixedly connected to the right side of the second connecting seat (4), a servo motor (7) is fixedly connected to the bottom of the sleeve (6), the output end of the servo motor (7) passes through the sleeve (6) and is fixedly connected to a drive shaft (8), the surface of the drive shaft (8) is threaded, the top of the surface of the drive shaft (8) is threadedly connected to a threaded sleeve (9), the bottom of the threaded sleeve (9) is provided with a limit plate (10), the limit plate (10) is arranged in a cross shape, the surface of the limit plate (10) is fixedly connected to the inner wall of the sleeve (6), the reset spring (3) is fitted on the surface of the sleeve (6), the inside of the pressure plate (20) is movably connected to the top of the surface of the fixed rod (5), and the bottom of the surface of the sleeve (6) is fixedly connected to the inside of the limit ring (2).

3. The high-voltage switch contact pressure regulating mechanism according to claim 2, characterized in that: The fixed rod (5) has an opening (11) inside that works with the limiting plate (10). A dustproof folding plate (12) is fixedly connected to the top of the limiting plate (10). The dustproof folding plate (12) is located inside the opening (11). The inner wall of the sleeve (6) has a limiting groove (13) that works with the limiting plate (10).

4. The high-voltage switch contact pressure regulating mechanism according to claim 2, characterized in that: The surface of the threaded sleeve (9) is fitted with a limiting sleeve (14) for limiting the threaded sleeve (9). The bottom of the limiting sleeve (14) is fixedly connected to the top of the limiting plate (10). The top of the transmission shaft (8) is fixedly connected to a limiting block (15).

5. The high-voltage switch contact pressure regulating mechanism according to claim 2, characterized in that: A coupling (16) is connected between the drive shaft (8) and the servo motor (7). A protective shell (17) is fitted on the surface of the servo motor (7). The top of the protective shell (17) is fixedly connected to the bottom of the sleeve (6).

6. A pressure sensor for a high-voltage switch contact pressure regulating mechanism according to any one of claims 1-5, characterized in that: The pressure sensor includes a pressure sensor body (18), the surface of which is coated with an anti-interference coating, and a fixing plate (19) is fixedly connected to the surface of the pressure sensor body (18). The fixing plate (19) is located on top of the pressure plate (20), and the interior of the fixing plate (19) is fixedly connected to the top of the surface of the fixing rod (5).

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