Sealing cover plate for high-pressure sleeve

Abstract

The utility model discloses a sealing cover plate for a high-pressure bushing, which relates to the technical field of high-pressure bushings and comprises a connecting pipe, the connecting pipe is used for connecting the high-pressure bushing, the top end of the connecting pipe is connected with a top cover in a sliding manner, the top cover is used for sealing the connecting pipe, a binding post is arranged at the center of the top cover, and the binding post is connected with the high-pressure bushing. According to the utility model, the locking assembly is arranged, so that the top cover is quickly and stably connected with the connecting pipe. A rotating cylinder, a push rod, a clamping block and a limiting block in the locking assembly work cooperatively, and locking and unlocking operation of the top cover and the connecting pipe can be easily completed only by rotating the rotating cylinder. The design ensures that the sealing cover plate can be firmly mounted on the high-pressure bushing in a high-pressure environment, does not loosen due to factors such as vibration and pressure change in equipment operation, and can be conveniently disassembled and assembled during maintenance, so that the sealing performance and the safety of the high-pressure bushing are effectively guaranteed, and a reliable foundation is provided for stable operation of high-pressure equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage bushings, in particular to a sealing cover plate for high-voltage bushings. Background Art

[0002] In high-voltage power systems, high-voltage bushings are crucial components, playing a key role in insulating and supporting high-voltage conductors. The performance of sealing covers, as a crucial component of high-voltage bushings, directly impacts the operational safety and stability of the bushing and, ultimately, the entire high-voltage equipment.

[0003] Traditional high-voltage bushing sealing covers present numerous practical challenges. For one thing, their connections are often insecure. During operation, high-voltage equipment inevitably experiences vibrations and fluctuating internal pressures. Existing sealing cover connection designs, unable to effectively handle these complex operating conditions, are prone to loosening. Furthermore, the connections are relatively complex, making disassembly and assembly during maintenance cumbersome.

[0004] On the other hand, traditional sealing covers are susceptible to thermal expansion, contraction, and wear over long-term use due to changes in ambient temperature and friction between components. These issues can gradually weaken the sealing effect of the cover, creating gaps in the connection between the cover and the high-voltage bushing, and thus affecting the sealing and stability of the entire high-voltage bushing. Existing sealing technologies lack effective adaptive adjustment mechanisms to address this degradation in sealing performance caused by long-term use, and cannot guarantee a good seal under different operating conditions.

[0005] In view of the shortcomings of the above-mentioned traditional high-voltage bushing sealing cover, there is an urgent need for a new sealing cover design that can achieve stable connection and reliable sealing in complex high-voltage environments, and has the ability to adapt to different working conditions to meet the needs of safe and stable operation of high-voltage power systems. Utility Model Content

[0006] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve the technical problems is: a sealing cover plate for a high-voltage bushing, comprising: a connecting pipe, the connecting pipe is used to connect the high-voltage bushing, the top end of the connecting pipe is slidably connected to a top cover, the top cover is used to seal the connecting pipe, a terminal is provided at the center of the top cover, the terminal is used to connect the wire, and also comprises: a locking assembly, the outer wall of the locking assembly is rotatably connected to the inner wall of the top cover, the locking assembly is used to connect and fix the top cover to the connecting pipe; the locking assembly comprises a rotating cylinder, the bottom end of the rotating cylinder is rotatably connected to a push rod, the end of the push rod away from the rotating cylinder is rotatably connected to a card block, the outer wall of the card block is slidably connected to a limiting block, and the outer wall of the rotating cylinder is fixedly connected to a gear ring.

[0007] Preferably, the outer wall of the rotating drum is rotatably connected to the inner wall of the top cover, and the outer wall of the stop block is fixedly connected to the outer wall of the bottom end of the top cover. A push rod rotatably connected to the bottom end of the rotating drum pushes a block connected thereto. The block is restricted by the stop block and can only slide in a specific direction. The block can slide within the slot of the connecting tube. When the block slides into the slot, the top cover and the connecting tube are locked and fixed.

[0008] Preferably, a rotating rod is provided on the outside of the gear ring, the outer wall of the rotating rod is rotatably connected to a limit handle, and the outer wall of the limit handle is fixedly connected to a torsion spring. The limit handle is acted upon by the torsion spring, and under normal circumstances, the torsion spring enables the limit handle to have a certain limiting effect on the gear ring.

[0009] Preferably, the bottom end of the rotating rod is fixedly connected to the outer wall of the top cover, the end of the torsion spring away from the limiting handle is fixedly connected to the top end of the rotating rod, and the outer wall of the limiting handle is slidably connected to the inner wall of the gear ring.

[0010] Preferably, a sealing ring is installed on the inner wall of the top cover, an upper guide groove is opened in the wall of the top cover, a lower guide groove is opened in the wall of the connecting pipe, and a bayonet is opened in the wall of the connecting pipe.

[0011] Preferably, the outer wall of the connecting pipe is slidably connected to the outer wall of the sealing ring, the upper guide groove corresponds to the lower guide groove, and the inner wall of the bayonet is slidably connected to the outer wall of the clamping block. The upper guide groove in the top cover wall corresponds to the lower guide groove in the connecting pipe wall. When the connection is completed, the pressure inside the high-voltage bushing enters the upper guide groove through the lower guide groove and pushes the sealing ring downward, so that the sealing ring and the connecting pipe are in close contact.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model realizes a quick and stable connection between the top cover and the connecting pipe by providing a locking assembly. The rotating drum, push rod, clamping block and limit block in the locking assembly work together, and the locking and unlocking operations of the top cover and the connecting pipe can be easily completed by simply rotating the rotating drum. This design ensures that under high-pressure conditions, the sealing cover can be firmly installed on the high-voltage bushing and will not loosen due to factors such as vibration and pressure changes during equipment operation. It can also be easily disassembled and assembled during maintenance, effectively ensuring the sealing and safety of the high-voltage bushing and providing a reliable foundation for the stable operation of high-voltage equipment.

[0014] 2. This innovative design aligns the upper guide groove of the top cover with the lower guide groove of the connecting pipe. This ingenious design allows pressure from the high-pressure casing to be transferred through the lower guide groove to the upper guide groove, pushing the sealing ring further downward and ensuring closer contact between the sealing ring and the connecting pipe. This adaptive pressure mechanism effectively addresses loose connections caused by factors such as thermal expansion and contraction and long-term friction, ensuring that the sealing cover plate maintains a good seal under various operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the main view of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 This is a structural diagram of the connecting pipe of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the locking assembly of the utility model.

[0019] In the figure: 1. Connecting pipe; 2. Top cover; 3. Locking assembly; 31. Rotating drum; 32. Gear ring; 33. Push rod; 34. Block; 35. Limit block; 36. Limit handle; 37. Rotating rod; 38. Torsion spring; 4. Terminal; 5. Sealing ring; 6. Lower guide groove; 7. Upper guide groove; 8. Bayonet. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0021] Example:

[0022] See also Figure 1 - Figure 4The utility model provides a technical solution: a sealing cover plate for a high-voltage bushing, comprising: a connecting pipe 1, which is used to connect the high-voltage bushing; the top end of the connecting pipe 1 is slidably connected to a top cover 2, which is used to seal the connecting pipe 1; a terminal 4 is provided at the center of the top cover 2, which is used to connect a wire; and further comprising: a locking assembly 3, the outer wall of the locking assembly 3 is rotatably connected to the inner wall of the top cover 2, and the locking assembly 3 is used to connect and fix the top cover 2 to the connecting pipe 1; the locking assembly 3 comprises a rotating cylinder 31, the bottom end of the rotating cylinder 31 is rotatably connected to a push rod 33, the end of the push rod 33 away from the rotating cylinder 31 is rotatably connected to a card block 34, the outer wall of the card block 34 is slidably connected to a limiting block 35, and the outer wall of the rotating cylinder 31 is fixedly connected to a gear ring 32.

[0023] The outer wall of the rotating drum 31 is rotatably connected to the inner wall of the top cover 2 , and the outer wall of the limiting block 35 is fixedly connected to the outer wall of the bottom end of the top cover 2 .

[0024] A rotating rod 37 is provided on the outside of the gear ring 32 . The outer wall of the rotating rod 37 is rotatably connected to the limiting handle 36 . The outer wall of the limiting handle 36 is fixedly connected to a torsion spring 38 .

[0025] The bottom end of the rotating rod 37 is fixedly connected to the outer wall of the top cover 2 , the end of the torsion spring 38 away from the limiting handle 36 is fixedly connected to the top of the rotating rod 37 , and the outer wall of the limiting handle 36 is slidably connected to the inner wall of the gear ring 32 .

[0026] A sealing ring 5 is installed on the inner wall of the top cover 2 , an upper guide groove 7 is opened in the wall of the top cover 2 , a lower guide groove 6 is opened in the wall of the connecting pipe 1 , and a bayonet 8 is opened in the wall of the connecting pipe 1 .

[0027] The outer wall of the connecting pipe 1 is slidably connected to the outer wall of the sealing ring 5 , the upper guide groove 7 corresponds to the lower guide groove 6 , and the inner wall of the bayonet 8 is slidably connected to the outer wall of the clamping block 34 .

[0028] Working principle:

[0029] When in use, the connecting pipe 1 is connected to the high-voltage bushing and provides a mounting base for the entire sealing cover. The top cover 2 can slide on the top of the connecting pipe 1, and the terminal 4 at the center is used to connect the wires to achieve electrical connection function;

[0030] The locking assembly 3 is used to securely connect the top cover 2 and the connecting tube 1. When the rotating drum 31 is rotated, the push rod 33 connected to the bottom end of the rotating drum 31 pushes the block 34 connected thereto. The block 34 can only slide in a specific direction under the restriction of the limit block 35. The block 34 can slide in the bayonet 8 of the connecting tube 1. When the block 34 slides into the bayonet 8, the top cover 2 and the connecting tube 1 are locked and fixed. Conversely, rotating the rotating drum 31 in the opposite direction can make the block 34 withdraw from the bayonet 8, completing the unlocking.

[0031] The toothed ring 32 on the outer wall of the rotating drum 31 cooperates with external components to achieve control. The rotating rod 37 is fixed to the outer wall of the top cover 2. The outer wall of the rotating rod 37 is rotatably connected to the limiting handle 36. The limiting handle 36 is acted upon by a torsion spring 38. Under normal circumstances, the torsion spring 38 causes the limiting handle 36 to have a certain limiting effect on the toothed ring 32, preventing the rotating drum 31 from accidentally rotating and ensuring the stability of the locked state. When it is necessary to operate the locking assembly 3, the limiting handle 36 can be rotated to overcome the elastic force of the torsion spring 38 so that it no longer restricts the toothed ring 32, thereby allowing the rotating drum 31 to rotate.

[0032] The sealing ring 5 installed on the inner wall of the top cover 2 is slidably connected to the outer wall of the connecting pipe 1. When the top cover 2 is installed in place, the sealing ring 5 is squeezed to fill the gap between the two, effectively preventing leakage of internal media and entry of external impurities, and ensuring the sealing effect. At the same time, the upper guide groove 7 in the wall of the top cover 2 corresponds to the lower guide groove 6 in the wall of the connecting pipe 1. When the connection is completed, under the pressure inside the high-voltage bushing, the pressure enters the upper guide groove 7 through the lower guide groove 6 and pushes the sealing ring 5 to move downward, so that the sealing ring 5 and the connecting pipe 1 are in close contact, preventing the connection from loosening due to thermal expansion and contraction or friction damage, and ensuring the stability of the internal and external environment of the high-voltage bushing.

[0033] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A sealing cover plate for a high voltage bushing, characterized in that: include: A connecting pipe (1) is used to connect a high-voltage bushing, a top end of the connecting pipe (1) is slidably connected to a top cover (2), the top cover (2) is used to seal the connecting pipe (1), a terminal (4) is provided at the center of the top cover (2), the terminal (4) is used to connect a wire, and further comprises: A locking assembly (3), the outer wall of the locking assembly (3) being rotatably connected to the inner wall of the top cover (2), and the locking assembly (3) being used for connecting and fixing the top cover (2) and the connecting pipe (1); The locking assembly (3) comprises a rotating cylinder (31), the bottom end of the rotating cylinder (31) is rotatably connected to a push rod (33), the end of the push rod (33) away from the rotating cylinder (31) is rotatably connected to a clamping block (34), the outer wall of the clamping block (34) is slidably connected to a limiting block (35), and the outer wall of the rotating cylinder (31) is fixedly connected to a gear ring (32).

2. The sealing cover plate for a high voltage bushing according to claim 1, characterized in that: The outer wall of the rotating drum (31) is rotatably connected to the inner wall of the top cover (2), and the outer wall of the limiting block (35) is fixedly connected to the outer wall of the bottom end of the top cover (2).

3. The sealing cover plate for a high voltage bushing according to claim 1, characterized in that: A rotating rod (37) is provided on the outside of the gear ring (32), the outer wall of the rotating rod (37) is rotatably connected to a limiting handle (36), and the outer wall of the limiting handle (36) is fixedly connected to a torsion spring (38).

4. The sealing cover plate for a high voltage bushing according to claim 3, characterized in that: The bottom end of the rotating rod (37) is fixedly connected to the outer wall of the top cover (2), the end of the torsion spring (38) away from the limiting handle (36) is fixedly connected to the top end of the rotating rod (37), and the outer wall of the limiting handle (36) is slidably connected to the inner wall of the gear ring (32).

5. The sealing cover plate for a high voltage bushing according to claim 4, characterized in that: A sealing ring (5) is installed on the inner wall of the top cover (2), an upper guide groove (7) is opened in the wall of the top cover (2), a lower guide groove (6) is opened in the wall of the connecting pipe (1), and a bayonet (8) is opened in the wall of the connecting pipe (1).

6. The sealing cover plate for a high voltage bushing according to claim 5, characterized in that: The outer wall of the connecting pipe (1) is slidably connected to the outer wall of the sealing ring (5), the upper guide groove (7) corresponds to the lower guide groove (6), and the inner wall of the bayonet (8) is slidably connected to the outer wall of the clamping block (34).

Images