Electrical porcelain insulator capable of preventing cable loosening

Abstract

The application discloses an electric porcelain insulator capable of preventing cable loosening, and belongs to the technical field of electric porcelain insulators. The electric porcelain insulator comprises a base, the upper end of the base is fixedly connected with a shell, the upper end of the shell is fixedly connected with a top plate, the middle part of the top plate is slidably provided with an insulator body, two groups of toothed plates are arranged below the insulator body, the insulator body can slide into the interior of the shell, the gear can be engaged with the toothed plate under the cooperation of the top plate and the gear, the gear can limit the toothed plate, the insulator body can be vertically moved under the cooperation of the toothed plate and the gear, the upper arc-shaped block can be vertically moved when the triangular block below the toothed plate is inserted into the clamping groove, the upper arc-shaped block and the lower arc-shaped block can compress the cable, the cable can be disassembled and assembled under the cooperation of the locking mechanism and the unlocking mechanism, and the insulator body and the cable can be assembled by pulling the insulator body.

Description

Technical Field

[0001] This invention relates to the field of porcelain insulators, and in particular to a porcelain insulator that can prevent cables from loosening. Background Technology

[0002] An insulator is a device installed between conductors at different potentials or between a conductor and a component at ground potential. It can withstand voltage and mechanical stress. It is a special type of insulation control that plays an important role in overhead transmission lines. In the early days, insulators were mostly used on utility poles. Gradually, they were developed into a type of insulator with many disc-shaped insulators hanging at one end of high-voltage power line towers. These discs are used to increase the creepage distance and are usually made of glass or ceramic. Insulators should not fail due to various electromechanical stresses caused by changes in environmental and electrical load conditions. Otherwise, the insulators will not play a significant role and will damage the service and operational life of the entire line.

[0003] A search revealed a porcelain insulator mounting base disclosed in patent document CN218631510U, relating to the field of insulator technology. The base has a trapezoidal groove on its surface, and a cylindrical column is fixedly connected to the base surface. An annular groove is formed on the inner wall of the cylindrical column, and a sleeve is slidably connected to the inner wall of the cylindrical column. A spring is fixedly connected to the surface of the sleeve, and an annular sleeve is fixedly connected to the end of the spring away from the sleeve. This porcelain insulator mounting base, by setting an annular sleeve, allows the spring's elasticity to be unaffected by the compression of the inner wall of the cylindrical column when the annular sleeve slides to the inner wall of the annular groove, thus limiting and fixing the annular sleeve to the annular groove. This improves upon the drawback of traditional screw-mounted installation, where operators have to manually connect the screw at a height for extended periods. It also improves the ease of pressing the insulator to form a limiting and fixed position with the cylindrical column on the base surface, achieving a more convenient fixing operation.

[0004] A search revealed a porcelain insulator mounting base disclosed in patent document CN215868821U. The porcelain insulator includes a porcelain insulator body and a mounting base. A fixing block is fixed to the bottom of the porcelain insulator body. A first groove is formed on the left side of the fixing block, and a second groove is formed on the right side. A threaded groove is formed on the left side of the inner wall of the second groove. Ear plates are fixed to the lower ends of both sides of the mounting base, and a fixing member is fixed to the inner left side of the mounting base. When the installation angle of the porcelain insulator body needs to be adjusted, the fixing post, the second external threaded post, the second groove, and the threaded groove cooperate to achieve the purpose of adjusting the installation angle of the porcelain insulator body. A flexible sleeve is provided on the outside of the handle to enhance the comfort of the operator when turning the handle. Anti-slip threads are provided on the outside of the flexible sleeve to prevent slippage during rotation.

[0005] When electromagnetic insulators are connected and fixed to cables, the cables are usually connected and fixed to both ends of the insulators. The ends of the insulators are usually clamped by arc-shaped blocks, or bolts are used for installation. As a result, after the cable is installed, it is inconvenient to install when the insulator and cable are damaged or replaced. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an electric porcelain insulator that can prevent cable loosening. It overcomes the deficiencies of existing technologies and solves the problem that when connecting and fixing electromagnetic insulators to cables, the cable is usually connected and fixed at both ends of the insulator, and the ends of the insulator are generally fitted with arc-shaped blocks to press the cable, or sometimes bolts are used for installation. As a result, it is inconvenient to install the insulator when the cable is damaged or replaced after the cable is installed.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an electrical porcelain insulator that can prevent cable loosening, comprising a base, a housing fixedly connected to the upper end of the base, a top plate fixedly connected to the upper end of the housing, an insulator body slidably passing through the middle of the top plate, two sets of fixing plates fixedly connected to the lower ends of the top plate located on both sides of the insulator body, gears rotatably connected to the opposite sides of the two sets of fixing plates, two sets of toothed plates fixedly connected to the lower end of the insulator body, the two sets of toothed plates meshing with the two sets of gears respectively, a lower arc-shaped block fixedly connected to the upper end of the base plate, an upper arc-shaped block contacting the upper end of the lower arc-shaped block, two sets of snap-fit ​​grooves opened on the outer wall above the upper arc-shaped block, triangular blocks fixedly connected to the lower ends of the two sets of toothed plates respectively, and the triangular blocks located inside the snap-fit ​​grooves, locking mechanisms provided on both sides of the upper arc-shaped block, and an unlocking mechanism for unlocking the locking mechanisms provided on the outer wall of the housing.

[0008] By adopting the above technical solution, during use, two sets of toothed plates are provided at the bottom of the insulator body, which can slide into the interior of the housing. With the cooperation of the top plate and the gear, the gear can mesh with the toothed plate, so that the gear can limit the toothed plate. With the cooperation of the toothed plate and the gear, it is easy for the insulator body to move vertically. When the triangular block below the toothed plate is inserted into the snap-fit ​​groove, it can push the upper arc block to move vertically, so that the upper arc block and the lower arc block can press the cable. Then, with the cooperation of the locking mechanism and the unlocking mechanism, it is convenient to disassemble and install the cable. Pulling the insulator body facilitates the installation of the insulator body and the cable.

[0009] As a preferred embodiment of the present invention, the locking mechanism includes two sets of upper base blocks, which are fixedly connected to both sides of the upper arc-shaped block, and the lower ends of the two sets of upper base blocks respectively contact two sets of lower base blocks, which are fixedly connected to both sides of the lower arc-shaped block, and the positions of the two sets of upper base blocks correspond to those of the two sets of lower base blocks.

[0010] By adopting the above technical solution, the upper arc-shaped block can fix the upper base block, and the lower arc-shaped block can fix the lower base block. The corresponding positions of the lower base block and the upper base block facilitate the locking of the upper and lower base blocks.

[0011] As a preferred embodiment of the present invention, two sets of telescopic rods are fixedly connected to the lower end of the top plate. The telescopic ends of the two sets of telescopic rods are respectively fixedly connected to two sets of upper base blocks. The outer walls of the two sets of telescopic rods are respectively slidably fitted with first springs. The upper end of the first spring is fixedly connected to the top plate, and the lower end of the first spring is fixedly connected to the upper base block.

[0012] By adopting the above technical solution, the upper base block can be extended and reset by setting the telescopic rod and the first spring. The downward movement of the telescopic rod facilitates the locking of the upper base block and the lower base block. With the cooperation of the first spring, the telescopic rod drives the upper base block to move upward, which facilitates the release of the upper arc block from the cable.

[0013] As a preferred embodiment of the present invention, the lower ends of the two sets of upper base blocks are respectively fixedly connected with insert blocks, the two sets of insert blocks are respectively slidably passed through the two sets of lower base blocks, and a limit block is fixedly connected to one side of the insert block located below the lower base block.

[0014] By adopting the above technical solution, the insert block is inserted into the lower base block, and the limiting block can lock the insert block and the lower base block together, and the insert block has a certain degree of elasticity.

[0015] As a preferred embodiment of the present invention, the lower ends of the two sets of lower base blocks are respectively fixedly connected with support rods, and the lower ends of the two sets of support rods are respectively fixedly connected to the base plate.

[0016] By adopting the above technical solution, the support rods can provide support for the lower base block.

[0017] As a preferred embodiment of the present invention, the unlocking mechanism includes two sets of push rods, which slide through the inner walls on both sides of the housing, and each set of push rods has a pressing block fixedly connected to one side.

[0018] By adopting the above technical solution, the push rod can slide within the inner wall of the housing, thus facilitating the movement of the push rod by the operator in conjunction with the blocks.

[0019] As a preferred embodiment of the present invention, a second spring is slidably sleeved on the outer wall of the top rod located between the housing and the push block. One side of the second spring is fixedly connected to the housing, and the other side of the second spring is fixedly connected to the push block. The side of the top rod away from the push block abuts against the limiting block.

[0020] By adopting the above technical solution, when the push rod moves, it will abut against the limiting block, so that the insert block has a certain elasticity and can contact the locking state between the insert block and the lower base block, while the second spring can reset the push rod.

[0021] As a preferred embodiment of the present invention, circular holes are respectively provided on both sides of the housing, and a rubber ring is fixedly connected to the inner wall of the housing inside the circular holes, and the rubber ring corresponds to the positions of the upper arc block and the lower arc block.

[0022] By adopting the above technical solution, the circular hole facilitates the passage of cables, while the rubber ring provides waterproofing to the inside of the housing.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] (1) The present invention has two sets of toothed plates arranged below the insulator body, which can slide into the interior of the housing. With the cooperation of the top plate and the gear, the gear can mesh with the toothed plate, so that the gear can limit the toothed plate. With the cooperation of the toothed plate and the gear, the insulator body can move vertically. When the triangular block below the toothed plate is inserted into the snap-fit ​​groove, it can push the upper arc block to move vertically, so that the upper arc block and the lower arc block can press the cable. Then, with the cooperation of the locking mechanism and the unlocking mechanism, the cable can be disassembled and installed. Pulling the insulator body facilitates the installation of the insulator body and the cable.

[0025] (2) When the upper arc block moves vertically, the upper arc block can descend along a straight line with the cooperation of the telescopic rod, so that the insert block on the upper base block can be easily engaged with the interior of the lower base block. With the cooperation of the limiting block, the upper arc block and the lower arc block can be locked.

[0026] (3) In this invention, the push rod can be made to contact the limiting block by the staff pressing the push block, so that the insert block can be offset from the lower base block. Then, under the action of the first spring, the upper arc block can be reset. Then the upper arc block will push the insulator body to move upward, which is convenient for the disassembly of the insulator body. Attached Figure Description

[0027] Figure 1 This is a front view schematic diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the front view portion of the present invention;

[0029] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0030] Figure 4 For the present invention Figure 2 Enlarged view at point B in the middle;

[0031] Figure 5 This is a top view schematic diagram of the present invention;

[0032] Figure 6 For the present invention Figure 5 Enlarged view at point C;

[0033] Figure 7 For the present invention Figure 6 Enlarged view of point D in the middle.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Base; 2. Housing; 3. Top plate; 4. Insulator body; 5. Fixing plate; 6. Gear; 7. Tooth plate; 8. Triangular block; 9. Upper arc block; 10. Snap-fit ​​groove; 11. Lower arc block; 12. Telescopic rod; 13. First spring; 14. Upper base block; 15. Lower base block; 16. Insert block; 17. Limiting block; 18. Support rod; 19. Top rod; 20. Press block; 21. Second spring; 22. Rubber ring; 23. Circular hole. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-2 , Figure 4 and Figure 5A porcelain insulator for preventing cable loosening includes a base 1, a housing 2 fixedly connected to the upper end of the base 1, a top plate 3 fixedly connected to the upper end of the housing 2, an insulator body slidably passing through the middle of the top plate 3, two sets of fixing plates 5 fixedly connected to the lower ends of the top plate 3 on both sides of the insulator body, gears 6 rotatably connected to the opposite sides of the two sets of fixing plates 5, two sets of toothed plates 7 fixedly connected to the lower end of the insulator body 4, the two sets of toothed plates 7 meshing with the two sets of gears 6 respectively, a lower arc-shaped block 11 fixedly connected to the upper end of the base plate, an upper arc-shaped block 9 contacting the upper end of the lower arc-shaped block 11, two sets of snap-fit ​​grooves 10 formed on the outer wall above the upper arc-shaped block 9, triangular blocks 8 fixedly connected to the lower ends of the two sets of toothed plates 7 respectively, and the triangular blocks 8 located inside the snap-fit ​​grooves 10, the upper arc-shaped block 9... Locking mechanisms are provided on both sides, and an unlocking mechanism is provided on the outer wall of the housing 2 to unlock the locking mechanisms. Two sets of toothed plates 7 are provided below the insulator body 4, which can slide into the interior of the housing 2. With the cooperation of the top plate 3 and the gear 6, the gear 6 can mesh with the toothed plate 7, so that the gear 6 can limit the toothed plate 7. With the cooperation of the toothed plate 7 and the gear 6, the insulator body 4 can move vertically. When the triangular block 8 below the toothed plate 7 is inserted into the snap-fit ​​groove 10, it can push the upper arc block 9 to move vertically, so that the upper arc block 9 and the lower arc block 11 can press the cable. Then, with the cooperation of the locking mechanism and the unlocking mechanism, the cable can be disassembled and installed. Pulling the insulator body 4 facilitates the installation of the insulator body 4 and the cable.

[0038] For details, please refer to Figures 2-4 The locking mechanism includes two sets of upper base blocks 14, which are fixedly connected to both sides of the upper arc-shaped block 9. The lower ends of the two sets of upper base blocks 14 respectively contact two sets of lower base blocks 15, which are fixedly connected to both sides of the lower arc-shaped block 11. The positions of the two sets of upper base blocks 14 and the two sets of lower base blocks 15 correspond to each other. The upper arc-shaped block 9 can fix the upper base blocks 14, while the lower arc-shaped block 11 can fix the lower base blocks 15. The corresponding positions of the lower base blocks and the upper base blocks 14 facilitate the locking function between the upper base blocks 14 and the lower base blocks 15. The lower end of the top plate 3 is fixedly connected to... There are two sets of telescopic rods 12. The telescopic ends of the two sets of telescopic rods 12 are fixedly connected to the two sets of upper base blocks 14 respectively. The outer walls of the two sets of telescopic rods 12 are slidably fitted with first springs 13. The upper end of the first spring 13 is fixedly connected to the top plate 3, and the lower end of the first spring 13 is fixedly connected to the upper base block 14. The telescopic rods 12 and the first springs 13 can play the role of telescopic extension and resetting of the upper base block 14. The telescopic rods 12 move downward to facilitate the locking of the upper base block 14 and the lower base block 15. With the cooperation of the first springs 13, the telescopic rods 12 drive the upper base block 14 to move upward, which facilitates the upper arc block 9 to release the pressure on the cable.

[0039] Two sets of upper base blocks 14 are respectively fixedly connected to the lower ends of the two sets of lower base blocks 15. The two sets of insert blocks 16 slide through the two sets of lower base blocks 15 respectively. A limiting block 17 is fixedly connected to one side of the insert block 16 located below the lower base block 15. The insert block 16 is inserted into the lower base block 15, and the limiting block 17 can lock the insert block 16 and the lower base block 15. The insert block 16 here has a certain elasticity.

[0040] For details, please refer to Figure 1 , Figure 3 , Figures 5-7 The unlocking mechanism includes two sets of push rods 19, which slide through the inner walls on both sides of the housing 2. Each set of push rods 19 has a fixed block 20 on one side. The push rods 19 can slide within the inner wall of the housing 2, allowing the operator to easily move them with the help of the blocks 20. A second spring 21 is slidably fitted on the outer wall of the push rods 19 located between the housing 2 and the blocks 20. One side of the second spring 21 is fixedly connected to the housing 2, and the other side is fixedly connected to the blocks 20. The side of the push rod 19 away from the blocks 20 abuts against the limiting block 17. When the push rod 19 moves, it abuts against the limiting block 17, giving the insert block 16 a certain elasticity, which allows the insert block 16 to engage with the locking state of the lower base block 15. The second spring 21 can also reset the push rod 19.

[0041] For details, please refer to Figure 2 and Figure 5 The lower ends of the two sets of lower base blocks 15 are respectively fixedly connected with support rods 18, and the lower ends of the two sets of support rods 18 are respectively fixedly connected to the base plate. The support rods 18 can support the lower base blocks 15.

[0042] For details, please refer to Figures 1-2 and Figure 5 The shell 2 has circular holes 23 on both sides. A rubber ring 22 is fixedly connected to the inner wall of the shell 2 inside the circular holes 23. The rubber ring 22 corresponds to the position of the upper arc block 9 and the lower arc block 11. The circular holes 23 make it easy for cables to pass through, while the rubber ring 22 can waterproof the inside of the shell 2.

[0043] Working principle: During use, two sets of toothed plates 7 are provided below the insulator body 4, allowing them to slide into the housing 2. With the cooperation of the top plate 3 and the gear 6, the gear 6 meshes with the toothed plates 7, thus limiting the movement of the toothed plates 7. The cooperation between the toothed plates 7 and the gear 6 facilitates the vertical movement of the insulator body 4. When the triangular block 8 below the toothed plate 7 is inserted into the locking groove 10, it pushes the upper arc-shaped block 9 to move vertically, allowing the upper arc-shaped block 9 and the lower arc-shaped block 11 to press against the cable. With the cooperation of the telescopic rod 12, it can further... The vertical movement of the upper arc-shaped block 9 serves as a vertical guide, facilitating the insertion of the insert block 16 in the upper base block 14 into the lower base block 15. With the cooperation of the limiting block 17, the upper arc-shaped block 9 and the lower arc-shaped block 11 can be locked. During disassembly, the push block 20 can be pressed to move the push rod 19, causing the push rod 19 to abut against the limiting block 17. The insert block 16 here has a certain elasticity, and with the cooperation of the first spring 13, it can drive the upper base block 14 and the upper arc-shaped block 9 to reset, thereby relieving the cable compression and disassembling the insulator body 4.

[0044] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] The above description is merely 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 foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A porcelain insulator for preventing cable loosening, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a housing (2), and the upper end of the housing (2) is fixedly connected to a top plate (3). The insulator body is slidably inserted through the middle of the top plate (3). Two sets of fixing plates (5) are fixedly connected to the lower ends of the top plate (3) located on both sides of the insulator body. Gears (6) are rotatably connected to the opposite side of the two sets of fixing plates (5). Two sets of toothed plates (7) are fixedly connected to the lower end of the insulator body (4). The two sets of toothed plates (7) mesh with the two sets of gears (6) respectively. The upper end of the base is fixedly connected to a lower arc-shaped block (11), the upper end of the lower arc-shaped block (11) contacts an upper arc-shaped block (9), the outer wall above the upper arc-shaped block (9) is provided with two sets of snap-fit ​​grooves (10), the lower ends of the two sets of toothed plates (7) are respectively fixedly connected to triangular blocks (8), and the triangular blocks (8) are located inside the snap-fit ​​grooves (10). Locking mechanisms are provided on both sides of the upper arc-shaped block (9), and the outer wall of the housing (2) is provided with an unlocking mechanism for unlocking the locking mechanism. The locking mechanism includes two sets of upper base The two sets of upper base blocks (14) are fixedly connected to both sides of the upper arc block (9). The lower ends of the two sets of upper base blocks (14) are respectively in contact with two sets of lower base blocks (15). The two sets of lower base blocks (15) are respectively fixedly connected to both sides of the lower arc block (11). The positions of the two sets of upper base blocks (14) and the two sets of lower base blocks (15) are respectively corresponding. The lower end of the top plate (3) is fixedly connected to two sets of telescopic rods (12). The telescopic ends of the two sets of telescopic rods (12) are respectively fixed to the two sets of upper base blocks (14). The outer walls of the two sets of telescopic rods (12) are respectively slidably fitted with first springs (13). The upper end of the first spring (13) is fixedly connected to the top plate (3), and the lower end of the first spring (13) is fixedly connected to the upper base block (14). The lower ends of the two sets of upper base blocks (14) are respectively fixedly connected with inserts (16). The two sets of inserts (16) slide through the two sets of lower base blocks (15). A limit block (17) is fixedly connected to one side of the insert (16) located below the lower base block (15).

2. The porcelain insulator for preventing cable loosening according to claim 1, characterized in that: The lower ends of the two sets of lower base blocks (15) are respectively fixedly connected to support rods (18), and the lower ends of the two sets of support rods (18) are respectively fixedly connected to the base.

3. The porcelain insulator for preventing cable loosening according to claim 1, characterized in that: The unlocking mechanism includes two sets of push rods (19), which slide through the inner walls on both sides of the housing (2) respectively, and each set of push rods (19) is fixedly connected to a push block (20) on one side.

4. A porcelain insulator for preventing cable loosening according to claim 3, characterized in that: A second spring (21) is slidably sleeved on the outer wall of the top rod (19) located between the housing (2) and the button (20). One side of the second spring (21) is fixedly connected to the housing (2), and the other side of the second spring (21) is fixedly connected to the button (20). The side of the top rod (19) away from the button (20) abuts against the limiting block (17).

5. A porcelain insulator for preventing cable loosening according to claim 4, characterized in that: The shell (2) has circular holes (23) on both sides. A rubber ring (22) is fixedly connected to the inner wall of the shell (2) inside the circular hole (23), and the rubber ring (22) corresponds to the position of the upper arc block (9) and the lower arc block (11).

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