Easy-to-connect grading ring for composite insulator

Abstract

The utility model relates to the field of grading rings, and discloses a conveniently-connected grading ring for a composite insulator, which comprises a fitting fixedly connected to the end part of the composite insulator and a grading ring body detachably mounted and fixed on the composite insulator, and is characterized in that the composite insulator is fixedly sleeved with a supporting seat positioned below the grading ring body; two groups of connecting and positioning mechanisms are arranged between the grading ring body and the supporting seat and are used for locking and fixing the grading ring body on the composite insulator, and the two groups of connecting and positioning mechanisms are respectively positioned on the left side and the right side of the composite insulator and are symmetrically distributed. Compared with the prior art, the grading ring has the following advantages and effects that the grading ring body can be rapidly and firmly installed and fixed on the composite insulator, the grading ring body can be conveniently and rapidly disassembled and taken down, the operation is convenient and easy, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of grading rings, and in particular to a grading ring for a composite insulator that is easy to connect. Background Art

[0002] A grading ring is a metal ring-shaped device installed on a composite insulator. Its primary function is to improve the electric field distribution around the insulator. The grading ring adjusts the electric field through capacitive coupling. It acts as a capacitor electrode, forming a capacitor with the high-voltage end of the insulator and the surrounding space. When high voltage is applied, charges are induced on the grading ring. The electric field generated by these charges is superimposed on the electric field of the insulator itself, dispersing the electric field around the insulator, which was originally concentrated in certain areas. This results in a uniform electric field. In high-voltage transmission lines, uneven electric field strength at both ends of the insulator can lead to problems such as partial discharge. Installing a grading ring on a composite insulator can make the electric field around the insulator more uniform, thereby improving the insulator's electrical performance and reducing corona discharge and radio interference.

[0003] In the related art, the equalizing ring is usually installed on the end fitting of the synthetic insulator, and the installation method is mainly to use multiple bolts to fix the equalizing ring on the fitting of the synthetic insulator. However, the operation steps of using multiple bolts to connect and install the equalizing ring are relatively cumbersome and troublesome, not convenient enough, and subsequently multiple bolts need to be unscrewed in turn to remove the equalizing ring. The disassembly steps are also cumbersome and troublesome, and the work efficiency is low.

[0004] Therefore, we propose a grading ring for a composite insulator that is easy to connect to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a grading ring for a synthetic insulator that is easy to connect, which can quickly and firmly install and fix the grading ring body on the synthetic insulator, and facilitate the rapid disassembly and removal of the grading ring body, making the operation convenient and hassle-free, thereby improving work efficiency.

[0006] The above technical purpose of the present application is achieved through the following technical solutions: a grading ring for a synthetic insulator that is easy to connect, comprising a hardware fixedly connected to the end of the synthetic insulator and a grading ring body that is detachably mounted and fixed on the synthetic insulator, a support seat located below the grading ring body is fixed on the synthetic insulator, a connection and positioning mechanism is provided between the grading ring body and the support seat, and the connection and positioning mechanism is used to lock and fix the grading ring body on the synthetic insulator.

[0007] The present application is further configured as follows: the number of the connection positioning mechanisms is set to two groups, and the two groups of connection positioning mechanisms are respectively located on the left and right sides of the composite insulator and are symmetrically distributed.

[0008] The present application is further configured as follows: the connection and positioning mechanism includes three connecting rods, three positioning vertical rods, three clamping rods, an arc-shaped connecting plate and three springs, the three connecting rods are fixedly installed at the bottom of the equalizing pressure ring body and are arranged at an angle, the three positioning vertical rods are respectively fixedly installed at the bottom ends of the corresponding connecting rods, three positioning grooves are opened on one side of the top of the support seat, the bottom ends of the three positioning vertical rods are respectively slidably installed in the corresponding positioning grooves, one side of the three positioning vertical rods are opened, one side of the three positioning grooves are opened, one end of the three clamping rods slides through the corresponding horizontal holes and is respectively slidably installed in the corresponding clamping slots, the arc-shaped connecting plate is located on one side of the support seat, the other ends of the three clamping rods are fixedly connected to the arc-shaped connecting plate, the three springs are arranged between the support seat and the arc-shaped connecting plate and are respectively sleeved on the corresponding clamping rods, and the two ends of the spring are respectively fixedly connected to the support seat and the arc-shaped connecting plate.

[0009] The present application is further configured as follows: the angle between two adjacent positioning vertical rods is 30°, and the angle between two adjacent positioning grooves is 30°.

[0010] The present application is further configured as follows: the side of the positioning vertical rod close to the card rod is an inclined surface structure, the card slot is located on the inclined surface of the positioning vertical rod, and a semicircular sliding ball is fixedly installed on one end of the card rod located in the card slot.

[0011] The present application is further configured as follows: the outer surface of the semicircular sliding ball and the inclined surface of the positioning vertical rod are both smooth surfaces.

[0012] The present application is further configured as follows: a threaded hole is provided on one side of the arc-shaped connecting plate, a locking screw is passed through the thread in the threaded hole, a threaded groove is provided on one side of the support seat, and one end of the locking screw is threadedly installed in the threaded groove.

[0013] The present application is further configured as follows: a water leakage hole is provided on the bottom inner wall of the positioning groove.

[0014] This application includes at least one of the following beneficial technical effects:

[0015] 1. The present application utilizes two sets of connection and positioning mechanisms, which can realize the quick and secure installation and fixation of the equalizing ring body on the synthetic insulator, and facilitates the quick disassembly and removal of the equalizing ring body, which is convenient and saves trouble, and improves work efficiency. Moreover, when the equalizing ring body is locked and fixed on the synthetic insulator, it can ensure that the equalizing ring body will not easily loosen or fall off during use, thereby improving the stability and reliability of the connection, and can effectively replace the existing method of using multiple bolts to install and connect the equalizing ring.

[0016] 2. This application utilizes the threaded connection between the locking screw and the thread groove to lock the position of the arc-shaped connecting plate after the grading ring body is installed, thereby further improving the stability of the grading ring body when installed on the composite insulator.

[0017] 3. In this application, the angles between two adjacent positioning vertical rods and two adjacent positioning grooves are set to 30°. This symmetrical distribution design makes the force more uniform and further enhances the stability of the connection of the equalizing ring body.

[0018] 4. This application utilizes the drainage hole to promptly drain rainwater that has entered the positioning groove, thereby preventing water accumulation in the positioning groove from corroding the positioning vertical rod, the clamping rod, and the semicircular sliding ball, thereby extending their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of this embodiment.

[0020] Figure 2 It is a schematic diagram of the main cross-sectional structure of this embodiment.

[0021] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A.

[0022] Figure 4 2 is a schematic diagram of the top structure of this embodiment.

[0023] Figure 5 2 is a schematic diagram of the bottom structure of this embodiment.

[0024] In the figure, 1. synthetic insulator; 2. hardware; 3. equalizing ring body; 4. support seat; 5. connecting rod; 6. positioning vertical rod; 7. positioning groove; 8. clamping groove; 9. horizontal hole; 10. clamping rod; 11. arc-shaped connecting plate; 12. spring; 13. semicircular sliding ball; 14. threaded hole; 15. locking screw; 16. threaded groove; 17. leakage hole. DETAILED DESCRIPTION

[0025] The technical solutions of this application will be described clearly and completely below with reference to specific embodiments. Obviously, the embodiments described are only a portion of the embodiments of this application, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of this application without creative effort are also within the scope of protection of this application.

[0026] See also Figure 1-Figure 5 The present application provides a grading ring for a composite insulator that is easy to connect, comprising a hardware 2 fixedly connected to the end of the composite insulator 1 and a grading ring body 3 detachably fixed to the composite insulator 1, wherein:

[0027] The composite insulator 1 is sleeved with a support seat 4 located below the grading ring body 3, and a connecting positioning mechanism is provided between the grading ring body 3 and the support seat 4. The connecting positioning mechanism is used to lock and fix the grading ring body 3 on the composite insulator 1. The number of connecting positioning mechanisms is set to two groups, and the two groups of connecting positioning mechanisms are respectively located on the left and right sides of the composite insulator 1 and are symmetrically distributed, which can ensure stable support for the grading ring body 3 and improve the stability of the grading ring body 3 installed on the composite insulator 1. The connecting positioning mechanism includes three connecting rods 5, three positioning vertical rods 6, three clamping rods 10, an arc-shaped connecting plate 11 and three springs 12. The three connecting rods 5 are all fixedly installed on the bottom of the grading ring body 3 and are inclined. The three positioning vertical rods 6 are respectively fixedly installed on the bottom ends of the corresponding connecting rods 5. Three positioning grooves 7 are provided on one side of the top of the support seat 4. The three positioning vertical rods The bottom ends of 6 are slidably installed in the corresponding positioning grooves 7 respectively, and a card slot 8 is opened on one side of the three positioning vertical rods 6, and a horizontal hole 9 is opened on one side of the three positioning slots 7. One end of the three card rods 10 slides through the corresponding horizontal holes 9 and is slidably installed in the corresponding card slots 8 respectively. The arc connecting plate 11 is located on one side of the support seat 4, and the other ends of the three card rods 10 are fixedly connected to the arc connecting plate 11. The three springs 12 are arranged between the support seat 4 and the arc connecting plate 11 and are respectively sleeved on the corresponding card rods 10. The two ends of the spring 12 are fixedly connected to the support seat 4 and the arc connecting plate 11 respectively. By utilizing the card connection between the card rod 10 and the card slot 8, the positioning vertical rod 6 can be carded and fixed in the positioning groove 7, and then the grading ring body 3 can be installed on the synthetic insulator 1. By utilizing the elastic force of the spring 12, the arc connecting plate 11 and the card rod 10 can be controlled to automatically reset.

[0028] In this embodiment, the angle between two adjacent positioning vertical rods 6 is 30°, and the angle between two adjacent positioning grooves 7 is 30°, so that the force on the support base 4 is more uniform, and the stability of the connection is further enhanced.

[0029] In this embodiment, the side of the positioning vertical rod 6 close to the clamping rod 10 is an inclined surface structure, the clamping groove 8 is located on the inclined surface of the positioning vertical rod 6, and a semicircular sliding ball 13 is fixedly installed on one end of the clamping rod 10 located in the clamping groove 8, which can make the installation operation of the equalizing pressure ring body 3 smoother and faster, and improve the installation efficiency of the equalizing pressure ring body 3. The outer surface of the semicircular sliding ball 13 and the inclined surface of the positioning vertical rod 6 are both smooth surfaces, which reduces the friction during installation and the process, making the installation operation smoother.

[0030] In this embodiment, a threaded hole 14 is provided on one side of the arc-shaped connecting plate 11, and a locking screw 15 is passed through the inner thread of the threaded hole 14. A threaded groove 16 is provided on one side of the support seat 4, and one end of the locking screw 15 is threadedly installed in the threaded groove 16. The threaded connection between the locking screw 15 and the threaded groove 16 can lock the position of the arc-shaped connecting plate 11, thereby further improving the stability of the equalizing ring body 3 installed on the composite insulator 1.

[0031] In this embodiment, a water leakage hole 17 is opened on the bottom inner wall of the positioning groove 7, which can drain rainwater entering the positioning groove 7 in time, avoiding the accumulation of water in the positioning groove 7 to corrode the positioning vertical rod 6, the clamping rod 10 and the semicircular sliding ball 13, thereby extending their service life.

[0032] Through the above structure, the composite insulator grading ring provided by the present application can be used to quickly and securely install the grading ring body 3 on the composite insulator 1, and can also be quickly disassembled and removed, making the operation convenient and hassle-free, thereby improving work efficiency. The operation steps are as follows:

[0033] When the grading ring body 3 is installed on the synthetic insulator 1, the grading ring body 3 is first sleeved on the synthetic insulator 1, so that the three positioning vertical rods 6 on the left side of the bottom of the grading ring body 3 are aligned with the three positioning grooves 7 on the left side of the top of the support seat 4, and the three positioning vertical rods 6 on the right side of the bottom of the grading ring body 3 are aligned with the three positioning grooves 7 on the right side of the top of the support seat 4, and then slowly apply force to press down the grading ring body 3, and the bottom ends of the positioning vertical rods 6 are gradually inserted downward into the corresponding positioning grooves 7, and the inclined surfaces of the positioning vertical rods 6 contact the semicircular sliding balls 13 on the clamping rod 10. In the process of inserting the positioning vertical rod 6 into the positioning groove 7, the inclined surfaces of the positioning vertical rods 6 automatically squeeze the semicircular sliding balls 13 and the clamping rod 10, the clamping rod 10 pushes the arc-shaped connecting plate 11 outward, and the spring 12 is gradually stretched and deformed to generate elastic force. When the semicircular sliding ball 13 slides to align with the clamping groove 8, under the elastic force of the spring 12, one end of the clamping rod 10 and the semicircular sliding ball 13 will automatically snap into the clamping groove 8. At this time, the preliminary installation and fixation of the grading ring body 3 on the synthetic insulator 1 is completed. Next, the locking screw 15 on the arc-shaped connecting plate 11 is tightened into the threaded groove 16 on one side of the support seat 4, which can lock the arc-shaped connecting plate 11, thereby further enhancing the stability of the grading ring body 3 after installation and fixation. The installation steps of the grading ring body 3 are completed;

[0034] When it is necessary to disassemble and remove the equalizing ring body 3, first unscrew the two locking screws 15 out of the corresponding threaded grooves 16, then the lock on the two arc-shaped connecting plates 11 is released, and then the two arc-shaped connecting plates 11 are pulled away from each other. Each arc-shaped connecting plate 11 drives the three clamping rods thereon to withdraw from the corresponding clamping grooves 8 respectively. At this time, after releasing the fixation of the clamping rod 10 on the positioning vertical rod 6, the equalizing ring body 3 can be easily removed from the synthetic insulator 1, and the disassembly steps of the equalizing ring body 3 are completed.

Claims

1. A grading ring for a composite insulator that is easy to connect, characterized in that: The invention comprises a metal fitting (2) fixedly connected to the end of a composite insulator (1) and a grading ring body (3) detachably mounted and fixed on the composite insulator (1); a support seat (4) located below the grading ring body (3) is fixedly mounted on the composite insulator (1); a connection positioning mechanism is provided between the grading ring body (3) and the support seat (4); the connection positioning mechanism is used to lock and fix the grading ring body (3) on the composite insulator (1).

2. The grading ring for composite insulators with convenient connection according to claim 1, characterized in that: The number of the connection positioning mechanisms is set to two groups, and the two groups of connection positioning mechanisms are respectively located on the left and right sides of the composite insulator (1) and are symmetrically distributed.

3. The grading ring for composite insulators with convenient connection according to claim 1, characterized in that: The connection and positioning mechanism comprises three connecting rods (5), three positioning vertical rods (6), three clamping rods (10), an arc-shaped connecting plate (11) and three springs (12). The three connecting rods (5) are fixedly mounted on the bottom of the equalizing ring body (3) and are arranged in an inclined manner. The three positioning vertical rods (6) are respectively fixedly mounted on the bottom ends of the corresponding connecting rods (5). Three positioning grooves (7) are provided on one side of the top of the support seat (4). The bottom ends of the three positioning vertical rods (6) are respectively slidably mounted in the corresponding positioning grooves (7). A clamping groove (8) is provided on one side of the three positioning vertical rods (6). A transverse hole (9) is provided on one side of the positioning groove (7), one end of the three clamping rods (10) slides through the corresponding transverse hole (9) and is slidably installed in the corresponding clamping groove (8), the arc-shaped connecting plate (11) is located on one side of the support seat (4), the other ends of the three clamping rods (10) are fixedly connected to the arc-shaped connecting plate (11), the three springs (12) are arranged between the support seat (4) and the arc-shaped connecting plate (11) and are respectively sleeved on the corresponding clamping rods (10), and the two ends of the spring (12) are respectively fixedly connected to the support seat (4) and the arc-shaped connecting plate (11).

4. The grading ring for composite insulators with convenient connection according to claim 3, characterized in that: The angle between two adjacent positioning vertical rods (6) is 30°, and the angle between two adjacent positioning grooves (7) is 30°.

5. The grading ring for composite insulators with convenient connection according to claim 4, characterized in that: The side of the positioning vertical rod (6) close to the clamping rod (10) is an inclined surface structure, the clamping groove (8) is located on the inclined surface of the positioning vertical rod (6), and a semicircular sliding ball (13) is fixedly installed on one end of the clamping rod (10) located in the clamping groove (8).

6. The grading ring for composite insulators with convenient connection according to claim 5, characterized in that: The outer surface of the semicircular sliding ball (13) and the inclined surface of the positioning vertical rod (6) are both smooth surfaces.

7. The grading ring for composite insulators with convenient connection according to claim 3, characterized in that: A threaded hole (14) is provided on one side of the arc-shaped connecting plate (11), a locking screw (15) is threadedly passed through the threaded hole (14), a threaded groove (16) is provided on one side of the support seat (4), and one end of the locking screw (15) is threadedly installed in the threaded groove (16).

8. The grading ring for composite insulators with convenient connection according to claim 3, characterized in that: A water leakage hole (17) is provided on the inner wall of the bottom of the positioning groove (7).

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