Large-creepage-distance disc-shaped suspension type glass insulator

Abstract

The utility model relates to the field of glass insulators, in particular to a large-creep-distance disc-shaped suspension type glass insulator which comprises an insulator body, an iron cap is arranged at the upper end of the insulator body, a clamping groove is formed in the upper end of the iron cap, a containing groove is formed in the edge side of the interior of the clamping groove, and a connecting through hole is formed in the lower end of the containing groove. A movable cavity is formed in the lower end of the connecting through hole, a connecting sliding groove is formed in the surface of the movable cavity, a lifting block is arranged in the movable cavity, and a connecting shaft is fixedly installed at the upper end of the lifting block; the pressing plate drives the lifting block to move downwards, so that the connecting shaft drives the fixing baffle to retract, the fixing block is conveniently clamped, the reset spring drives the fixing baffle to move upwards again, the steel foot fixing block is clamped, rapid connection of two insulators is achieved, operation is simple and convenient, the operation speed is high, a bolt wrench is not needed, and the cost is low. The situation that the bolt or the wrench falls off is further avoided, and installation operation is safer.

Description

Technical Field

[0001] This utility model relates to the field of glass insulators, and more particularly to large creepage distance disc suspension glass insulators. Background Technology

[0002] Large creepage distance disc suspension glass insulators are widely used insulating devices in high-voltage power transmission and distribution systems. Their main function is to support and insulate conductors. These insulators are particularly suitable for highly polluted and humid environments. Due to their excellent hydrophobicity and anti-flashover capabilities, they can effectively improve the safety and stability of lines. Large creepage distance disc suspension glass insulators are suspension insulators made of glass material, usually composed of glass components and metal fittings, glued together with adhesive or mechanically clamped. These insulators are mainly used to support conductors and achieve electrical insulation, and are commonly found in transmission lines. Disc suspension glass insulators are widely used in AC overhead transmission lines, especially in applications requiring high mechanical strength and good electrical performance. Their superior weather resistance and corrosion resistance make them perform excellently under various environmental conditions.

[0003] For example, patent number (CN207781305U) discloses an anti-aging glass insulator, including an insulator, a glass insulator body, a metal cap, and a metal foot. The insulator includes the glass insulator body and an anti-aging film. The anti-aging film is disposed on the surface of the glass insulator body. The glass insulator body has a metal cap fixing protrusion. The glass insulator body has a metal foot fixing groove. A plastic gasket is disposed above the glass insulator body. The metal cap is disposed above the plastic gasket. A first adhesive is disposed between the metal cap and the glass insulator body. The metal cap has an installation slot and a metal cap fixing groove. The beneficial effect is that this utility model covers the surface of the glass insulator with an anti-aging film, further improving the anti-aging properties of the glass insulator, thereby increasing the service life of the glass insulator.

[0004] Currently, when using large creepage distance disc suspension glass insulators, the connection structure between the glass insulators has certain limitations, which makes the connection and installation of two glass insulators more troublesome, and there is a possibility that bolts or wrenches may fall off. Utility Model Content

[0005] To overcome the problem that connecting and installing two glass insulators is troublesome and that bolts or wrenches may fall off.

[0006] The technical solution of this utility model is as follows: a large creepage distance disc-shaped suspension glass insulator, including an insulator body, an iron cap at the upper end of the insulator body, a locking groove at the upper end of the iron cap, a receiving groove at the side inside the locking groove, a connecting through hole at the lower end of the receiving groove, a movable cavity at the lower end of the connecting through hole, a connecting slide groove at the surface of the movable cavity, a lifting block inside the movable cavity, a connecting shaft fixedly installed at the upper end of the lifting block, a fixing baffle fixedly installed at the upper end of the connecting shaft extending into the receiving groove, a return spring on the surface of the connecting shaft, a connector fixedly installed on the surface of the lifting block, a pressing plate fixedly installed at the front end of the connector extending to the outside of the iron cap, a threaded rod at the front end of the pressing plate, and a locking insertion hole at the lower side of the connecting slide groove on the surface of the iron cap.

[0007] Preferably, the pressing plate can drive the connecting piece and the lifting block to move downwards, the connecting shaft can drive the fixed baffle to fully retract into the receiving groove, the locking groove uses the steel foot fixing block that is locked into another insulator, the return spring can drive the lifting block and the connecting shaft to move upwards again, so that the fixed baffle locks the steel foot fixing block, the guide through hole and the guide post can assist in guiding the pressing force, further restricting the direction of the force, making the pressing of the pressing plate smoother, and the knob pressing plate can drive the threaded rod to rotate and enter the locking socket, which cooperates with the locking socket to form a pin lock.

[0008] Preferably, a guide hole is provided at the lower end of the movable cavity, and a guide post is fixedly installed at the lower end of the lifting block. The lower end of the guide post extends to the inner side of the guide hole, and its surface is slidably connected with the guide hole.

[0009] Preferably, the connecting shaft is slidably connected to the connecting through hole, the connecting shaft is slidably connected to the receiving groove, and the fixed baffle is slidably connected to the receiving groove.

[0010] Preferably, the surface of the lifting block is slidably connected to the movable cavity, and the connecting piece is slidably connected to the connecting groove.

[0011] Preferably, the connecting shaft and the return spring are sleeved together, one end of the return spring is fixedly connected to the lifting block, and the other end of the return spring is fixedly connected to the iron cap.

[0012] Preferably, a knob pressure plate is fixedly installed at the front end of the threaded rod, and a limit ring is fixedly installed on the surface of the threaded rod.

[0013] Preferably, the surface of the threaded rod is threaded to the pressing plate, and the rear end of the threaded rod extends to the inside of the locking socket and is connected to the locking socket pin.

[0014] The beneficial effects of this utility model are:

[0015] This large creepage distance disc-type suspension glass insulator uses a pressing plate to move a lifting block downwards, causing the connecting shaft to retract the fixed baffle, facilitating its engagement with the fixed block. A return spring then moves the fixed baffle upwards again, locking the steel foot fixing block, achieving a quick connection between the two insulators. The operation is simple and convenient, with fast connection speed, eliminating the need for bolts or wrenches and further preventing bolts or wrenches from falling, making installation safer and improving the ease of installation and connection of the large creepage distance disc-type suspension glass insulator. Twisting the knob pressure plate rotates the threaded rod and inserts it into the locking hole, using a pin connection to lock the pressing plate, preventing accidental contact that could loosen the connection, thus locking the connection structure and improving the safety of the large creepage distance disc-type suspension glass insulator connection structure. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the large creepage distance disc-shaped suspension glass insulator of this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural representation of the iron cap of this utility model. Figure 1 ;

[0018] Figure 3 The diagram shown is a three-dimensional structural representation of the iron cap of this utility model. Figure 2 ;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the fixed baffle of this utility model.

[0020] Figure 5 What is shown is Figure 4 Enlarged 3D structural diagram of point A.

[0021] Explanation of reference numerals in the attached drawings: 1. Insulator body; 2. Iron cap; 3. Engaging groove; 4. Receiving groove; 5. Connecting through hole; 6. Movable cavity; 7. Connecting slide; 8. Lifting block; 9. Connecting shaft; 10. Fixed baffle; 11. Return spring; 12. Connecting piece; 13. Pressing plate; 14. Threaded rod; 15. Locking socket; 16. Guide through hole; 17. Guide post; 18. Knob pressure plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a large creepage distance disc-shaped suspension glass insulator, comprising an insulator body 1, an iron cap 2 at the upper end of the insulator body 1, a locking groove 3 at the upper end of the iron cap 2, a receiving groove 4 on the side inside the locking groove 3, a connecting through hole 5 at the lower end of the receiving groove 4, a movable cavity 6 at the lower end of the connecting through hole 5, a connecting sliding groove 7 on the surface of the movable cavity 6, a lifting block 8 inside the movable cavity 6, a connecting shaft 9 fixedly installed at the upper end of the lifting block 8, a fixing baffle 10 fixedly installed at the upper end of the connecting shaft 9 extending into the receiving groove 4, and a return spring 11 on the surface of the connecting shaft 9. A connector 12 is fixedly installed on the surface of the lowering block 8. The front end of the connector 12 extends to the outside of the iron cap 2 and a pressing plate 13 is fixedly installed thereon. A threaded rod 14 is provided at the front end of the pressing plate 13. A locking hole 15 is provided on the surface of the iron cap 2 on the lower side of the connecting slide 7. Pressing the pressing plate 13 causes the lifting block 8 to drive the fixed baffle 10 to fully retract into the receiving groove 4 through the connecting shaft 9, so that the fixed block can be inserted into the locking groove 3. The lifting block 8 is moved upward by the return spring 11, so that the fixed baffle 10 locks the main steel foot fixing block. Turning the knob pressure plate 18 causes the threaded rod 14 to rotate and enter the locking hole 15, thereby locking the connection structure.

[0024] Please see Figures 1-4 In this embodiment, a guide hole 16 is provided at the lower end of the movable cavity 6, and a guide post 17 is fixedly installed at the lower end of the lifting block 8. The lower end of the guide post 17 extends to the inner side of the guide hole 16, and its surface is slidably connected to the guide hole 16. The connecting shaft 9 is slidably connected to the connecting hole 5 and the receiving groove 4. The fixed baffle 10 is slidably connected to the receiving groove 4. The surface of the lifting block 8 is slidably connected to the movable cavity 6. The connecting piece 12 is slidably connected to the connecting slide groove 7. The connecting shaft 9 and the return spring 11 are sleeved together. One end of the return spring 11 is fixedly connected to the lifting block 8. The other end is fixedly connected to the iron cap 2. Pressing down the knob pressure plate 18 and the pressing plate 13 causes the connecting piece 12 to drive the lifting block 8 to move downward. Through the connecting shaft 9, the fixed baffle 10 is completely retracted into the receiving groove 4, making it easy to insert the steel foot fixing block of the other insulator into the locking groove 3. When the knob pressure plate 18 and the pressing plate 13 are released, the reset spring 11 drives the lifting block 8 and the connecting shaft 9 to move upward again, so that the fixed baffle 10 locks the main steel foot fixing block, realizing the quick connection of the two insulators and avoiding the use of bolt wrenches, which is conducive to improving the convenience of installation and connection of large creepage disc suspension glass insulators.

[0025] Please see Figures 1-5In this embodiment, a knob pressure plate 18 is fixedly installed at the front end of the threaded rod 14, a limit ring is fixedly installed on the surface of the threaded rod 14, the surface of the threaded rod 14 is threadedly connected to the pressing plate 13, and the rear end of the threaded rod 14 extends to the inner side of the locking socket 15 and is connected to the locking socket 15 pin. Twisting the knob pressure plate 18 causes the threaded rod 14 to rotate and enter the locking socket 15, and the pressing plate 13 is locked by the pin connection, avoiding loosening of the connection due to accidental contact with the pressing plate 13, etc., and realizing the locking of the connection structure, which is beneficial to improving the safety of the connection structure of the large creepage disc suspension glass insulator.

[0026] During operation, pressing down the knob plate 18 and the pressing plate 13 causes the connecting piece 12 to move the lifting block 8 downwards. This, along with the connecting shaft 9, causes the fixed baffle 10 to retract completely into the receiving groove 4, facilitating the insertion of the steel foot fixing block of the other insulator into the engaging groove 3. Releasing the knob plate 18 and the pressing plate 13 allows the return spring 11 to move the lifting block 8 and the connecting shaft 9 upwards again, causing the fixed baffle 10 to engage the main steel foot fixing block. This enables a quick connection between the two insulators and avoids the need for a bolt wrench. After the connection and installation are complete, turning the knob plate 18 causes the threaded rod 14 to rotate and enter the locking socket 15. The pin connection locks the pressing plate 13, preventing accidental contact with the pressing plate 13 and thus locking the connection structure.

[0027] Through the above steps, pressing the pressing plate 13 causes the lifting block 8 to drive the fixed baffle 10 to fully retract into the receiving groove 4 via the connecting shaft 9, making it easy for the fixed block to be inserted into the locking groove 3. The return spring 11 drives the lifting block 8 to move upward, so that the fixed baffle 10 locks the main steel foot fixing block, realizing the quick connection of the two insulators and avoiding the use of bolt wrenches. This solves the problem that the connection and installation of two glass insulators is more troublesome and that bolts or wrenches may fall off.

Claims

1. A large creepage distance disc suspension glass insulator, comprising an insulator body (1), characterized in that: An iron cap (2) is provided at the upper end of the insulator body (1). A locking groove (3) is provided at the upper end of the iron cap (2). A receiving groove (4) is provided on the side inside the locking groove (3). A connecting through hole (5) is provided at the lower end of the receiving groove (4). A movable cavity (6) is provided at the lower end of the connecting through hole (5). A connecting slide groove (7) is provided on the surface of the movable cavity (6). A lifting block (8) is provided inside the movable cavity (6). A connecting shaft (9) is fixedly installed at the upper end of the lifting block (8). A fixed baffle (10) is fixedly installed inside the receiving groove (4) at the upper end of the connecting shaft (9). A reset spring (11) is provided on the surface of the connecting shaft (9). A connector (12) is fixedly installed on the surface of the lifting block (8). A pressing plate (13) is fixedly installed on the front end of the connector (12) to the outside of the iron cap (2). A threaded rod (14) is provided on the front end of the pressing plate (13). A locking hole (15) is opened on the surface of the iron cap (2) on the lower side of the connecting slide (7).

2. The large creepage distance disc suspension glass insulator according to claim 1, characterized in that: The lower end of the movable cavity (6) is provided with a guide through hole (16), and the lower end of the lifting block (8) is fixedly installed with a guide post (17). The lower end of the guide post (17) extends to the inner side of the guide through hole (16), and its surface is slidably connected with the guide through hole (16).

3. The large creepage distance disc suspension glass insulator according to claim 1, characterized in that: The connecting shaft (9) is slidably connected to the connecting through hole (5), the connecting shaft (9) is slidably connected to the receiving groove (4), and the fixed baffle (10) is slidably connected to the receiving groove (4).

4. The large creepage distance disc suspension glass insulator according to claim 1, characterized in that: The surface of the lifting block (8) is slidably connected to the movable cavity (6), and the connector (12) is slidably connected to the connecting groove (7).

5. The large creepage distance disc suspension glass insulator according to claim 4, characterized in that: The connecting shaft (9) and the reset spring (11) are sleeved together. One end of the reset spring (11) is fixedly connected to the lifting block (8), and the other end of the reset spring (11) is fixedly connected to the iron cap (2).

6. The large creepage distance disc suspension glass insulator according to claim 1, characterized in that: A knob pressure plate (18) is fixedly installed at the front end of the threaded rod (14), and a limit ring is fixedly installed on the surface of the threaded rod (14).

7. The large creepage distance disc suspension glass insulator according to claim 6, characterized in that: The surface of the threaded rod (14) is threaded to the pressing plate (13), and the rear end of the threaded rod (14) extends to the inside of the locking socket (15) and is connected to the locking socket (15) pin.

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