Pillar type high-voltage insulator

Abstract

The utility model relates to the technical field of high-voltage insulators, and discloses a strut type high-voltage insulator, which comprises a connecting plate, a metal strut is mounted in the middle of the connecting plate, an insulating porcelain piece is fixedly connected to the top of the metal strut, a buffer assembly is mounted at the top of the insulating porcelain piece, and a mounting plate is mounted at the top of the buffer assembly. Wiring terminals are fixedly connected to the two ends of the mounting plate, mounting blocks are fixedly connected to the two sides of the bottom of the metal supporting column, shells are fixedly connected to the two sides of the interior of the connecting plate, positioning rods are fixedly connected to the inner walls of the shells, and inserting rods are slidably connected to one sides of the peripheries of the positioning rods. According to the utility model, through the cooperation of the mounting block, the shell, the positioning rod, the insertion rod, the spring, the button, the baffle plate and the connecting rod, the pillar type high-voltage insulator can be conveniently disassembled and assembled without the assistance of tools when needing to be replaced and maintained, so that workers can replace and maintain the insulator more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage insulators, in particular to a pillar-type high-voltage insulator. Background Art

[0002] Post-type high-voltage insulators are a commonly used insulating device in power transmission and distribution systems. They are used to support and fix high-voltage conductors, and to electrically insulate the conductors from the supporting structure to ensure safe and stable power transmission. Post-type high-voltage insulators are usually composed of insulator bodies, metal pillars, and connecting bolts.

[0003] After searching, patent announcement number CN204884825U discloses a composite high-voltage insulator, which belongs to the technical field of insulators. It includes an insulating flange, a column, an insulating pressure plate, a conductive screw, a conductive seat, a conductive joint and an insulating sleeve. A conductive screw is provided at the lower part of the central inner hole of the column, and the lower end of the conductive screw extends out of the column and is connected to the insulating pad. A conductive cavity is provided at the upper part of the central inner hole of the column, and a conductive joint is provided in the conductive cavity. The lower end of the conductive joint is connected to the upper end of the conductive screw through the conductive seat, and the upper end of the conductive joint is connected to the insulating sleeve. The utility model increases the creepage distance by setting an insulating flange, the structure of the insulating sleeve and the structure of the umbrella group on the column, which can reduce the height and volume of the insulator and meet the withstand voltage requirements at the same time; the conductive joint used is deeply buried in the column, which can increase the creepage distance and achieve the purpose of improving the withstand voltage.

[0004] However, the above-mentioned high-voltage insulator is installed using a traditional stud structure, which results in that when the insulating porcelain parts outside the insulator are damaged, replacement and maintenance require the assistance of tools for disassembly, which is inconvenient. Therefore, a pillar-type high-voltage insulator is proposed. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a pillar-type high-voltage insulator, aiming to improve the problem that the high-voltage insulator in the prior art is inconvenient to disassemble and assemble during maintenance and replacement.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pillar-type high-voltage insulator, comprising a connecting plate, a metal pillar is installed in the middle of the connecting plate, an insulating porcelain part is fixedly connected to the top of the metal pillar, a buffer assembly is installed on the top of the insulating porcelain part, a mounting plate is installed on the top of the buffer assembly, both ends of the mounting plate are fixedly connected to wiring terminals, both sides of the bottom of the metal pillar are fixedly connected to mounting blocks, both sides of the inside of the connecting plate are fixedly connected to a shell, a positioning rod is fixedly connected to the inner wall of the shell, one side of the outer periphery of the positioning rod is slidably connected to an insertion rod, the other side of the outer periphery of the positioning rod is sleeved with a spring, the top of the shell is slidably connected to a button, the bottom end of the button is fixedly connected to a baffle, and a connecting rod is arranged between the baffle and the insertion rod.

[0007] As a further description of the above technical solution:

[0008] The buffer assembly includes a shell, the bottom of which is fixedly connected to the top of the insulating porcelain part, a limit block is slidably connected inside the shell, a connecting column is fixedly connected to the top of the limit block, the top of the connecting column passes through the shell and is fixedly connected to the bottom of the mounting plate, a compression spring is arranged at the bottom of the limit block, and a rubber ring is fixedly connected to the inner wall of the shell.

[0009] As a further description of the above technical solution:

[0010] The outer side of the installation block passes through and is slidably connected to the inside of the connecting plate, and one end of the insertion rod passes through the connecting plate and the shell and is inserted into the inside of the installation block.

[0011] As a further description of the above technical solution:

[0012] One end of the spring is fixedly connected to the inner wall of the shell, and the other end of the spring is fixedly connected to an end of the insertion rod away from the metal support.

[0013] As a further description of the above technical solution:

[0014] The top end of the connecting rod is hinged to the bottom of the baffle, and the bottom end of the connecting rod is hinged to the top edge of the insertion rod.

[0015] As a further description of the above technical solution:

[0016] The outer periphery of the limit block and the inner wall of the rubber ring are interference-fitted, and the compression spring is located between the bottom of the limit block and the inner bottom wall of the housing.

[0017] As a further description of the above technical solution:

[0018] A conductive coating is provided on the inner side of the connection terminal, and mounting holes are provided at four corners of the edge of the connection plate.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, through the cooperation of the mounting block, the housing, the positioning rod, the plug rod, the spring, the button, the baffle plate and the connecting rod, the pillar-type high-voltage insulator can be conveniently disassembled and assembled when it needs to be replaced and maintained, and no tools are required, making it more convenient for workers to replace and maintain the insulator.

[0021] 2. In the utility model, through the cooperation of the mounting plate, the terminal block, the conductive coating, the housing, the limit block, the connecting column, the compression spring and the rubber ring, the pillar-type high-voltage insulator can effectively buffer the force between the wire and the insulator when the wire shakes after being overlapped with the transmission and transformation wire, so as to avoid the connection between the wire and the insulator from being disconnected. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of a post-type high-voltage insulator proposed by the utility model;

[0023] Figure 2 A schematic diagram of the internal structure of a housing of a post-type high-voltage insulator proposed by the utility model;

[0024] Figure 3 The utility model is a cross-sectional view of a casing of a support type high voltage insulator.

[0025] Legend:

[0026] 1. Connecting plate; 2. Metal pillar; 3. Insulating porcelain; 4. Mounting plate; 5. Wiring terminal; 6. Conductive coating; 7. Housing; 8. Limit block; 9. Connecting column; 10. Compression spring; 11. Rubber ferrule; 12. Mounting block; 13. Housing; 14. Positioning rod; 15. Insert rod; 16. Spring; 17. Button; 18. Baffle; 19. Connecting rod; 20. Mounting hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings of the utility model specification to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-2The utility model provides an embodiment: a pillar-type high-voltage insulator, including a connecting plate 1, the connecting plate 1 and the power transmission components such as the electric pole or the transformer are installed to provide fixing conditions for the pillar-type high-voltage insulator. A metal pillar 2 is installed in the middle of the connecting plate 1, and an insulating porcelain part 3 is fixedly connected to the top of the metal pillar 2. The main structure of the pillar-type high-voltage insulator is formed by combining the metal pillar 2 and the insulating porcelain part 3. A buffer component is installed on the top of the insulating porcelain part 3. The buffer component can effectively prevent the connection between the insulator and the line from loosening or breaking due to the shaking of the transmission and transformation line. A mounting plate 4 is installed on the top of the buffer component, and both ends of the mounting plate 4 are fixedly connected with wiring terminals 5. The two wiring terminals 5 are connected through the mounting plate 4, so as to ensure that the current on the line can be transmitted. Both sides of the bottom of the metal support 2 are fixedly connected with mounting blocks 12, both sides of the inside of the connecting plate 1 are fixedly connected with a shell 13, the inner wall of the shell 13 is fixedly connected with a positioning rod 14, and the outer side of the positioning rod 14 is slidably connected with an insertion rod 15. Through the cooperation between the insertion rod 15 and the mounting block 12, the mounting block 12 can be fixed inside the connecting plate 1, thereby preventing the metal support 2 and the connecting plate 1 from falling off and fixing the insulator on the connecting plate 1.

[0029] Reference Figure 1-2 , a spring 16 is sleeved on the other side of the outer periphery of the positioning rod 14, a button 17 is slidably connected to the top of the housing 13, a baffle 18 is fixedly connected to the bottom of the button 17, and a connecting rod 19 is arranged between the baffle 18 and the plug rod 15. Press the buttons 17 on both sides, and the baffle 18 is driven to move the connecting rod 19 by the downward movement of the button 17, and the plug rod 15 is pushed to shrink toward the inside of the housing 13 by the connecting rod 19, so that the plug rod 15 is separated from the inside of the mounting block 12 and the spring 16 is compressed. At this time, the mounting block 12 and the connecting plate 1 are in an unlocked state, and the metal support 2 can be easily removed from the connecting plate 1, so as to replace or maintain the insulator. The outside of the mounting block 12 penetrates and is slidably connected to the inside of the connecting plate 1. One end of the plug rod 15 penetrates the connecting plate 1 and the housing 13 and is plugged into the inside of the mounting block 12. When the mounting block 12 is inserted into the inside of the connecting plate 1 and the plug rod 15 is inserted into the inside of the mounting block 12, the mounting block 12 and the connecting plate 1 are in a clamping state, ensuring that the mounting block 12 and the connecting plate 1 will not loosen, thereby fixing the insulator. One end of the spring 16 is fixedly connected to the inner wall of the housing 13, and the other end of the spring 16 is fixedly connected to the end of the plug rod 15 away from the metal support 2. The thrust applied by the spring 16 to the plug rod 15 prevents the plug rod 15 from loosening with the mounting block 12. The top of the connecting rod 19 is hinged to the bottom of the baffle 18, and the bottom of the connecting rod 19 is hinged to the top edge of the plug rod 15. The baffle 18 and the plug rod 15 are connected by the connecting rod 19, so that the staff can drive the plug rod 15 to move when pressing the button 17.

[0030] Reference Figure 1 and Figure 3The buffer assembly includes a casing 7, the bottom of which is fixedly connected to the top of the insulating porcelain part 3, a limit block 8 is slidably connected inside the casing 7, a connecting column 9 is fixedly connected to the top of the limit block 8, the top of the connecting column 9 passes through the casing 7 and is fixedly connected to the bottom of the mounting plate 4, and a compression spring 10 is arranged at the bottom of the limit block 8. When the power transmission and transformation line shakes due to strong wind or other reasons, the line will drive the mounting plate 4 to compress the connecting column 9 through the terminal block 5. The connecting column 9 moves downward to push the limit block 8 to compress the compression spring 10, and the force received is buffered. Ensure that the connection between the line and the terminal block 5 will not loosen or break prematurely. A rubber ring 11 is fixedly connected to the inner wall of the casing 7. The outer periphery of the limit block 8 and the inner wall of the rubber ring 11 are in interference fit. Through the close contact between the rubber ring 11 and the limit block 8, the limit block 8 can resist the force received through the action of friction when driven by the connecting column 9, thereby preventing the compression spring 10 from shaking too frequently, ensuring that the compression spring 10 can be quickly kept stationary while buffering the force received. The compression spring 10 is located between the bottom of the limit block 8 and the inner bottom wall of the casing 7, so that the limit block 8 can be buffered by the compression spring 10 in the first time when it is subjected to force, thereby avoiding excessive force on the connection between the line and the insulator. A conductive coating 6 is provided on the inner side of the terminal 5, and the friction between the line and the terminal 5 can be effectively reduced by the conductive coating 6, and the connection strength between the line and the terminal 5 can be further improved by cooperating with the buffer assembly. The four corners of the edge of the connecting plate 1 are provided with mounting holes 20, and the connecting plate 1 can be firmly fixed on the object by the cooperation of the bolts and the mounting holes 20.

[0031] Working principle: When the insulator needs to be replaced or maintained, the staff only needs to press the buttons 17 on both sides. The baffle 18 is driven to move the connecting rod 19 by the downward movement of the button 17. The connecting rod 19 pushes the plug rod 15 to retract toward the inside of the housing 13, so that the plug rod 15 is separated from the inside of the mounting block 12 and the spring 16 is compressed. At this time, the mounting block 12 and the connecting plate 1 are in an unlocked state, and the metal support 2 can be easily removed from the connecting plate 1, so as to replace or maintain the insulator. After that, the new insulator or the insulator after maintenance is reinstalled on the connecting plate 1, and the button 17 is released. At this time, the compressed spring 16 is reset to push the plug rod 15 to move. Then the plug rod 15 is inserted into the inside of the mounting block 12. At the same time, as the plug rod 15 moves, it pushes the connecting rod 19 to push the top button 17 out of the inside of the housing 13 again. At this time, the mounting block 12 is locked inside the connecting plate 1 by the plug rod 15, and the insulator is installed and fixed. When the power transmission and transformation line shakes due to strong wind or other reasons, the line will drive the mounting plate 4 to compress the connecting column 9 through the connecting terminal 5. The connecting column 9 moves downward to push the limit block 8 to compress the compression spring 10, buffering the force received, and through the friction between the rubber ring 11 and the limit block 8, it can ensure that the compression spring 10 will quickly return to a static state after being stressed, thereby preventing the power transmission and transformation line from being in a shaking state.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A post-type high-voltage insulator, comprising a connecting plate (1), characterized in that: A metal support (2) is installed in the middle of the connecting plate (1), an insulating porcelain piece (3) is fixedly connected to the top of the metal support (2), a buffer assembly is installed on the top of the insulating porcelain piece (3), a mounting plate (4) is installed on the top of the buffer assembly, both ends of the mounting plate (4) are fixedly connected to wiring terminals (5), both sides of the bottom of the metal support (2) are fixedly connected to mounting blocks (12), both sides of the inside of the connecting plate (1) are fixedly connected to a shell (13), the inner wall of the shell (13) is fixedly connected to a positioning rod (14), one side of the outer periphery of the positioning rod (14) is slidably connected to an insertion rod (15), the other side of the outer periphery of the positioning rod (14) is sleeved with a spring (16), the top of the shell (13) is slidably connected to a button (17), the bottom end of the button (17) is fixedly connected to a baffle (18), and a connecting rod (19) is provided between the baffle (18) and the insertion rod (15).

2. A post-type high voltage insulator according to claim 1, characterized in that: The buffer assembly comprises a sleeve (7), the bottom of the sleeve (7) is fixedly connected to the top of the insulating porcelain component (3), the interior of the sleeve (7) is slidably connected to a limit block (8), the top of the limit block (8) is fixedly connected to a connecting column (9), the top of the connecting column (9) passes through the sleeve (7) and is fixedly connected to the bottom of the mounting plate (4), a compression spring (10) is provided at the bottom of the limit block (8), and a rubber ring (11) is fixedly connected to the inner wall of the sleeve (7).

3. A post-type high voltage insulator according to claim 1, characterized in that: The outer side of the mounting block (12) passes through and is slidably connected to the inside of the connecting plate (1); one end of the insertion rod (15) passes through the connecting plate (1) and the shell (13) and is inserted into the inside of the mounting block (12).

4. A post-type high voltage insulator according to claim 1, characterized in that: One end of the spring (16) is fixedly connected to the inner wall of the housing (13), and the other end of the spring (16) is fixedly connected to an end of the insertion rod (15) away from the metal support (2).

5. A post-type high voltage insulator according to claim 1, characterized in that: The top end of the connecting rod (19) is hinged to the bottom of the baffle (18), and the bottom end of the connecting rod (19) is hinged to the top edge of the insertion rod (15).

6. A post-type high voltage insulator according to claim 2, characterized in that: An interference fit is formed between the outer periphery of the limit block (8) and the inner wall of the rubber ring (11), and the compression spring (10) is located between the bottom of the limit block (8) and the inner bottom wall of the casing (7).

7. A post-type high voltage insulator according to claim 1, characterized in that: A conductive coating (6) is provided on the inner side of the connection terminal (5), and mounting holes (20) are provided at four corners of the edge of the connection plate (1).

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