Stain-resistant disc-shaped suspension type alternating current porcelain insulator

Abstract

The utility model discloses a stain-resistant disc-shaped suspension type alternating current porcelain insulator, which relates to the field of porcelain insulators and comprises an insulating disc, a mounting cover and a connecting rod, the mounting cover and the connecting rod are fixedly arranged on the upper surface and the lower surface of the insulating disc, a cementing block used for being connected with another insulating disc is arranged below the connecting rod, and the cross section of the cementing block is elliptical. A through hole is formed in the inner side of the cementing block, two fixing blocks are movably arranged on the inner side of the through hole, and an inclined face is arranged at the upper end of each fixing block. By means of the arrangement of the fixing blocks, when two insulating discs are connected in a cementing mode, the insulating discs above can be stabilized through the fixing blocks, and the phenomena of inclination and the like of the insulating discs are prevented; the two fixing blocks are used for supporting the interior of the cementing groove in a bidirectional inner supporting mode, so that two force bearing points are presented at the same time, the perpendicularity of the upper insulation disc is guaranteed, the stability of the upper insulation disc is improved, and during cementing, it is guaranteed that the upper insulation disc is in a vertical state all the time.

Description

Technical Field

[0001] The utility model relates to the field of ceramic insulators, and particularly relates to a pollution-resistant disc-shaped suspension AC ceramic insulator. Background Art

[0002] The existing insulator is a special insulating control component, which can play an important role in overhead transmission lines. Insulators are mostly used on utility poles. Slowly, many disc-shaped insulators are hung at one end of the high-type high-voltage wire connection tower. It is used to increase the creepage distance and is usually made of glass or ceramic, including the AC disc-shaped suspension ceramic insulator, which is a special insulating control component that can play a role in supporting the conductor and preventing the current from returning to the ground in the overhead transmission line, ensuring the safe operation of the transmission line;

[0003] When the disc-shaped suspension ceramic insulator is in use, generally multiple insulators are adhesively connected and applied to wire support. When two disc-shaped suspension ceramic insulators are adhesively fixed, the two disc-shaped suspension ceramic insulators need to be straightened. When adhesively bonding and waiting for the adhesive to solidify, it is necessary to support the disc-shaped suspension ceramic insulator manually or by an auxiliary device to prevent it from tilting, and its adhesive bonding production cost is relatively high;

[0004] Therefore, it is very necessary to propose a pollution-resistant disc-shaped suspension AC ceramic insulator to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a pollution-resistant disc-shaped suspension AC ceramic insulator to solve the problems that it is necessary to support the disc-shaped suspension ceramic insulator manually or by an auxiliary device to prevent it from tilting, and the adhesive bonding production cost is relatively high.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A pollution-resistant disc-shaped suspension AC ceramic insulator, including an insulating disc, and mounting covers and connecting rods fixedly arranged on the upper and lower surfaces of the insulating disc. A cementing block for connecting another insulating disc is arranged below the connecting rod. The cross-section of the cementing block is oval. A through hole is arranged inside the cementing block. Two fixing blocks are movably arranged inside the through hole. The upper end of the fixing block is provided with an inclined surface;

[0007] A threaded sleeve is fixedly arranged at the upper end of the cementing block. A plurality of threaded rods are arranged at the lower end of the connecting rod. The threaded rods are threadedly connected to the threaded sleeve, and the lower end of the threaded rod abuts against the inclined surface;

[0008] An elastic plate is fixedly arranged on the outer side of the fixing block.

[0009] Preferably, a plurality of guiding grooves are arranged inside the through hole. A plurality of guiding blocks are fixedly arranged at both ends of the fixing block. The guiding blocks slide inside the corresponding guiding grooves. The cross-sections of the guiding blocks and the guiding grooves are both rectangular.

[0010] Preferably, a rectangular groove is formed through one end of the fixing block, and springs are fixedly arranged at the corresponding ends of the two rectangular grooves.

[0011] Preferably, a cementing groove is formed at the upper end of the mounting cover, and cementing holes are formed on the outer side of the mounting cover. The cementing holes communicate with the cementing groove.

[0012] Preferably, the cementing block is clamped inside the corresponding cementing groove.

[0013] Preferably, a semiconductor glaze layer is coated on the outer side of the upper end of the insulating disc.

[0014] The technical effects and advantages of the present utility model are as follows:

[0015] 1. Through the arrangement of the fixing block, when cementing and connecting two insulating discs, the upper insulating disc can be stabilized by the fixing block to prevent it from tilting or the like. By the two fixing blocks providing two-way inward support for the inside of the cementing groove, two stress points are presented simultaneously to ensure the perpendicularity of the upper insulating disc and increase the stability of the upper insulating disc. During cementing, it is ensured that the upper insulating disc is always in a vertical state.

[0016] 2. The insulating disc can be fixed by rotating it. By the threaded rod squeezing two inclined surfaces, the two fixing blocks are simultaneously driven to move. The operation is simple and the operation threshold is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the pollution-resistant disc-shaped suspension AC porcelain insulator of the present utility model.

[0018] Figure 2 is a schematic structural diagram of the insulating disc connection structure of the present utility model.

[0019] Figure 3 is a schematic cross-sectional structure diagram of the cementing block of the present utility model.

[0020] Figure 4 is a schematic structural diagram of the through hole of the present utility model.

[0021] Figure 5 is a schematic structural diagram of the fixing block of the present utility model.

[0022] In the figure: 1. Insulating disc; 2. Mounting cover; 201. Cementing groove; 202. Cementing hole; 3. Connecting rod; 4. Threaded rod; 5. Threaded sleeve; 6. Cementing block; 7. Through hole; 8. Guide groove; 9. Fixing block; 901. Rectangular groove; 902. Spring; 10. Elastic plate; 11. Inclined surface; 12. Guide block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model provides a pollution-resistant disc-shaped suspension AC porcelain insulator as shown in Figure 1 - Figure 5 which includes an insulating disc 1, and mounting caps 2 and connecting rods 3 fixedly arranged on the upper and lower surfaces of the insulating disc 1. A semiconductor glaze layer is coated on the outer side of the upper end of the insulating disc 1. The insulating disc 1 is a prior art and is a commonly used porcelain insulator, so no more description will be given here. A semiconductor glaze layer is coated on the outer side of the insulating disc 1. During operation, the semiconductor glaze layer can continuously pass through a leakage current of several milliamperes, generating a thermal effect, making the temperature of the insulator higher than the ambient temperature, which helps to prevent the condensation of dew and fog or dry the moisture, so as to improve the anti-pollution ability.

[0025] A cementing block 6 for connecting another insulating disc 1 is arranged below the connecting rod 3. A cementing groove 201 is opened at the upper end of the mounting cap 2, and a cementing hole 202 is opened on the outer side of the mounting cap 2. The cementing hole 202 communicates with the cementing groove 201. The cementing block 6 is clamped inside the corresponding cementing groove 201. When the cementing block 6 is clamped into the cementing groove 201, the cementing block 6 cannot rotate. The cross-section of the cementing block 6 is oval. Through its oval setting, a through hole 7 is opened inside the cementing block 6, and two fixing blocks 9 are movably arranged inside the through hole 7. The fixing blocks 9 are used to fix the cementing block 6 to be installed in the cementing groove 201. An inclined surface 11 is arranged at the upper end of the fixing block 9, and an elastic plate 10 is fixedly arranged on the outer side of the fixing block 9.

[0026] Through the setting of the fixing blocks 9, when cementing and connecting two insulating discs 1, the upper insulating disc 1 can be stabilized by the fixing blocks 9 to prevent it from tilting and other phenomena. The two fixing blocks 9 provide two-way inward support for the inside of the cementing groove 201 to present two stress points at the same time, ensuring the verticality of the upper insulating disc 1 and increasing the stability of the upper insulating disc 1. During cementing, it is ensured that the upper insulating disc 1 is always in a vertical state.

[0027] A threaded sleeve 5 is fixedly arranged at the upper end of the cementing block 6, and a plurality of threaded rods 4 are arranged at the lower end of the connecting rod 3. The threaded rods 4 are threadedly connected to the threaded sleeve 5. Threaded connection is a prior art and no more description will be given here. The lower end of the threaded rod 4 abuts against the inclined surface 11.

[0028] By rotating the insulating disc 1, it can be fixed. By squeezing the two inclined surfaces 11 with the threaded rods 4, the two fixing blocks 9 are simultaneously driven to move. The operation is simple and the operation threshold is low.

[0029] A plurality of guiding grooves 8 are provided inside the through hole 7. A plurality of guiding blocks 12 are fixedly provided at both ends of the fixing block 9. The guiding blocks 12 slide inside the corresponding guiding grooves 8 to ensure the moving direction of the fixing block 9. The cross sections of the guiding blocks 12 and the guiding grooves 8 are both rectangular.

[0030] A rectangular groove 901 is formed through one end of the fixing block 9. Springs 902 are fixedly provided at the corresponding ends of the two rectangular grooves 901. Through the arrangement of the springs 902, when the vertical direction of the insulating disc 1 is insufficient, the technician can rotate the threaded rod 4, and the fixing block 9 can be reset through the springs 902.

[0031] Working principle: The first insulating disc 1 is horizontally and fixedly placed. The operator then engages the bonding block 6 on the second insulating disc 1 with the bonding groove 201 on the first insulating disc 1, and then rotates the second insulating disc 1 to drive the connecting rod 3 to rotate, and further drives the threaded rod 4 to rotate. Then the threaded rod 4 rotates within the threaded sleeve 5, and the threaded rod 4 approaches the fixing block 9, and further presses down the fixing block 9. Then through the arrangement of the inclined surface 11, the two fixing blocks 9 move away from each other, and further the fixing block 9 drives the elastic plate 10 to contact the bonding groove 201, thereby completing the fixing of the second insulating disc 1.

[0032] Then, through the bonding hole 202, fixing glue is added into the bonding groove 201, and then wait for the glue to solidify to complete the connection of the two insulating discs 1.

Claims

1. A pollution-resistant disc-shaped suspension AC porcelain insulator, comprising an insulating disc (1) and mounting covers (2) and connecting rods (3) fixedly arranged on the upper and lower surfaces of the insulating disc (1), characterized in that: Below the connecting rod (3), there is an adhesive block (6) for connecting another insulating disc (1). The cross-section of the adhesive block (6) is oval. A through hole (7) is provided inside the adhesive block (6). Two fixing blocks (9) are movably arranged inside the through hole (7). An inclined surface (11) is provided at the upper end of the fixing block (9). A threaded sleeve (5) is fixedly arranged at the upper end of the adhesive block (6). A plurality of threaded rods (4) are provided at the lower end of the connecting rod (3). The threaded rods (4) are threadedly connected to the threaded sleeve (5). The lower end of the threaded rod (4) abuts against the inclined surface (11). An elastic plate (10) is fixedly arranged on the outer side of the fixing block (9).

2. The anti-fouling disc-shaped suspension AC porcelain insulator according to claim 1, characterized in that: A plurality of guiding grooves (8) are provided inside the through hole (7). A plurality of guiding blocks (12) are fixedly arranged at both ends of the fixing block (9). The guiding blocks (12) slide inside the corresponding guiding grooves (8). The cross-sections of the guiding blocks (12) and the guiding grooves (8) are both rectangular.

3. A pollution-resistant disc suspension AC porcelain insulator according to claim 1, characterized in that: A rectangular groove (901) is provided through one end of the fixing block (9). Springs (902) are fixedly arranged at the corresponding ends of the two rectangular grooves (901).

4. A pollution-resistant disc suspension AC porcelain insulator according to claim 1, characterized in that: An adhesive groove (201) is provided at the upper end of the mounting cover (2). An adhesive hole (202) is provided on the outer side of the mounting cover (2). The adhesive hole (202) communicates with the adhesive groove (201).

5. A pollution-resistant disc-shaped suspension AC porcelain insulator according to claim 4, characterized in that: The adhesive block (6) is clamped inside the corresponding adhesive groove (201).

6. The pollution-resistant disc suspension AC porcelain insulator according to claim 1, characterized in that: A semiconductor glaze layer is coated on the outer side of the upper end of the insulating disc (1).

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