Composite tension insulator with protective structure

Abstract

The utility model relates to insulator technical field especially, more particularly to a composite tension insulator with protection structure, including two insulator bodies, the both ends of each insulator body are provided with connecting block, and the connecting block of two insulator bodies is connected through a cylindrical pin, and the both ends of cylindrical pin are respectively provided with locking cap, the both sides of locking cap are provided with clamping groove, and the clamping groove of one side of two locking caps is provided with clamping frame. Through increase cylindrical pin, locking cap, clamping frame and U type limiting block etc. Multiple fixing structure, the connection strength and stability between insulator are improved significantly, guarantee the tensile strength of insulator connecting place, can effectively prevent the loosening or fracture condition when bearing larger tension.

Description

Technical Field

[0001] This utility model relates to the field of insulator technology, and in particular to a composite tension insulator with a protective structure. Background Technology

[0002] Insulators are an important component widely used in power systems. They are mainly used to support and fix live conductors, while ensuring electrical insulation between the conductors and the grounding parts. In high-voltage transmission lines, distribution lines, and substations, insulators undertake key mechanical and electrical functions. With the rapid development of power systems and the continuous increase in electricity demand, the performance requirements for insulators are becoming increasingly stringent, especially in terms of tensile strength, weather resistance, safety, and reliability.

[0003] Currently, traditional insulator connection methods typically rely on simple mechanical structures, such as using pins to fix multiple insulators in series or parallel. However, these connection and fixing methods lack additional secondary protection structures, resulting in poor connection stability. Consequently, traditional insulators are prone to loosening or even breaking when subjected to large tensile forces.

[0004] To solve the above problems, it is urgent to develop a composite tension insulator with a dual tensile protection structure. Utility Model Content

[0005] To overcome the shortcomings of traditional insulators, which rely solely on pins for series or parallel connection of multiple insulators and lack additional secondary protection structures, resulting in poor connection stability and easy loosening or even breakage of traditional insulators under high tensile force, this utility model provides a composite tension insulator with a dual tensile protection structure.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a composite tension insulator with a protective structure, comprising two insulator bodies, each insulator body having a connecting block at both ends, the connecting blocks at adjacent ends of the two insulator bodies being connected by a cylindrical pin, each end of the cylindrical pin being fitted with a locking cap, the locking cap having slots on both sides, a locking frame being provided between the slots on the same side of the two locking caps, the locking frame being cross-shaped, its front and rear ends being inserted into the slots on the same side of the two locking caps respectively, in addition, a U-shaped limiting block is provided between the upper ends and the lower ends of the two locking frames, the U-shaped limiting blocks securely connecting the two locking frames together by a snap-fit ​​mechanism.

[0007] More preferably, a first protective shell and a second protective shell are provided at the connection between the two insulator bodies. The front and rear sides of the first protective shell and the second protective shell are connected by a slot and a buckle to form a complete protective shell. A locking block is also provided at the connection between the first protective shell and the second protective shell.

[0008] More preferably, each of the two clamping brackets has a fixing buckle fixed to one end near the U-shaped limiting block. The fixing buckle is connected to the U-shaped limiting block by a connecting rope. One end of the connecting rope is fixed to the fixing buckle, and the other end is firmly connected to the U-shaped limiting block to form an integral structure.

[0009] More preferably, the second protective shell has a mounting buckle fixed to its side.

[0010] More preferably, the top and bottom of both the first and second protective shells are embedded with arc-shaped insulating rubber blocks to increase the sealing between the protective shell and the insulator body.

[0011] More preferably, one of the locking caps is provided with a U-shaped support.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. By adding multiple fixing structures such as cylindrical pins, locking caps, clamping frames and U-shaped limiting blocks, the connection strength and stability between insulators are significantly improved, ensuring the tensile strength of the insulator connection and effectively preventing loosening or breakage when subjected to large tensile forces.

[0013] 2. The design of the first and second protective shells provides an additional protective layer for the insulator connection, effectively isolating the intrusion of moisture, dust and other harmful substances, while also having good impact resistance and extending the service life of the insulator.

[0014] 3. The U-shaped limit block can be easily removed by pulling the connecting rope, simplifying the disassembly process. At the same time, the anti-loss function of the connecting rope avoids the risk of losing parts and reduces maintenance costs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the insulator body, connecting block, and cylindrical pin of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the cylindrical pin, locking cap, and clamping bracket of this utility model.

[0018] Figure 4This is a three-dimensional cross-sectional view of the first protective shell, the second protective shell, and the locking block of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the connecting rope and fixing buckle of this utility model.

[0020] The meanings of the labels in the attached diagram are as follows: 1. Insulator body, 2. Connecting block, 3. Cylindrical pin, 4. Locking cap, 5. Clamping bracket, 6. U-shaped limit block, 7. First protective shell, 8. Second protective shell, 9. Clamping block, 10. Connecting rope, 11. Fixing buckle, 12. Mounting buckle, 13. Arc-shaped insulating rubber block, 14. U-shaped support seat. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: Please refer to Figures 1-3 A composite tension insulator with a protective structure includes two insulator bodies 1. Each insulator body 1 has a connecting block 2 at both ends. The connecting blocks 2 at the adjacent ends of the two insulator bodies 1 are connected by a cylindrical pin 3. Locking caps 4 are respectively fitted onto the front and rear ends of the cylindrical pin 3. One of the locking caps 4 is provided with a U-shaped support 14. When it is necessary to remove the cylindrical pin 3 and use a pry tool, the U-shaped support 14 can serve as a fulcrum for the pry tool, helping the worker to easily pry open the cylindrical pin. 3. The locking cap 4 has slots on both sides. A locking bracket 5 is provided between the slots on the same side of the two locking caps 4. The locking bracket 5 is cross-shaped and its front and rear ends are respectively inserted into the slots on the same side of the two locking caps 4 to achieve initial fixation. In addition, a U-shaped limiting block 6 is provided between the upper end and the lower end of the two locking brackets 5. The U-shaped limiting block 6 securely connects the two locking brackets 5 together by a snap-fit, thereby completing the double fixation of the connection between the insulators.

[0023] When one insulator needs to be connected to another, first insert the cylindrical pin 3 into the connecting block 2 at the near end of the two insulator bodies 1, and then put the locking cap 4 onto both ends of the cylindrical pin 3 to achieve a preliminary connection. Then, use the clamping bracket 5, inserting its two ends into the slots on the same side of the two locking caps 4 respectively, so that the clamping bracket 5 is firmly embedded in the locking caps 4. Finally, install the U-shaped limiting block 6 between the upper and lower ends of the two clamping brackets 5, and fix the U-shaped limiting block 6 on the clamping bracket 5 by means of a buckle, thereby locking the two clamping brackets 5. Through the above steps, double fixing between the insulators is achieved, which significantly improves the tensile strength of the insulators.

[0024] Example 2: Based on Example 1, please refer to... Figure 4 A first protective shell 7 and a second protective shell 8 are provided at the connection point of the two insulator bodies 1. The front and rear sides of the first protective shell 7 and the second protective shell 8 are connected by a slot and a buckle to form a complete protective shell. The top and bottom of the first protective shell 7 and the second protective shell 8 are embedded with arc-shaped insulating rubber blocks 13 to increase the sealing between the protective shell and the insulator body 1. The arc-shaped insulating rubber blocks 13 are designed to fit tightly against the surface of the insulator body 1, effectively filling the gap between the two and significantly improving the sealing between the protective shell and the insulator body 1. The snap-fit ​​point of the first protective shell 7 and the second protective shell 8 is also provided with a locking block 9 to further enhance the connection strength and ensure that the protective shell will not loosen during use. The side of the second protective shell 8 is fixed with an installation buckle 12. When high-altitude operations are required, workers can temporarily fix the insulator to the safety belt through the installation buckle 12, thereby freeing their hands and improving operational safety.

[0025] After the two insulators are connected, the first protective shell 7 and the second protective shell 8 are placed on both sides of the connection between the two insulators, and the front and back sides are tightly locked together by the cooperation of the slot and the buckle. Then, the locking block 9 is inserted into the connection between the first protective shell 7 and the second protective shell 8. The mechanical locking action of the locking block 9 further strengthens the connection between the two and prevents the protective shells from loosening due to external vibration or impact. In this way, the combination design of the first protective shell 7 and the second protective shell 8 forms a closed protective space, which effectively isolates the intrusion of external moisture, dust and other harmful substances, while providing good impact resistance, thereby achieving waterproof and impact protection for the connection of the insulators.

[0026] Please see Figure 5 Each of the two clamping brackets 5 has a fixing buckle 11 fixed to one end near the U-shaped limiting block 6. The fixing buckle 11 is connected to the U-shaped limiting block 6 through a connecting rope 10. One end of the connecting rope 10 is fixed to the fixing buckle 11, and the other end is firmly connected to the U-shaped limiting block 6 to form an integral structure.

[0027] When it is necessary to remove the U-shaped limiting block 6, pull the connecting rope 10 by hand to release the U-shaped limiting block 6 from the clamping frame 5. Since one end of the connecting rope 10 is fixed to the fixing buckle 11, there is no need to worry about the U-shaped limiting block 6 completely disengaging from the device when pulling. Continue to pull the connecting rope 10 until the U-shaped limiting block 6 is completely removed from the clamping frame 5. At this time, the U-shaped limiting block 6 is still connected to the fixing buckle 11 through the connecting rope 10 to prevent it from being lost due to accidental drop.

[0028] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A composite tension insulator with a protective structure, comprising two insulator bodies (1), each insulator body (1) having a connecting block (2) at both ends, the connecting blocks (2) at adjacent ends of the two insulator bodies (1) being connected by a cylindrical pin (3), wherein locking caps (4) are respectively fitted onto both ends of the cylindrical pin (3), characterized in that: Both sides of the locking cap (4) are provided with slots. A locking bracket (5) is provided between the slots on the same side of the two locking caps (4). The locking bracket (5) is cross-shaped, and its front and rear ends are respectively inserted into the slots on the same side of the two locking caps (4). In addition, a U-shaped limiting block (6) is provided between the upper end and the lower end of the two locking brackets (5). The U-shaped limiting block (6) securely connects the two locking brackets (5) together by means of a buckle.

2. A composite tension insulator with a protective structure according to claim 1, characterized in that: A first protective shell (7) and a second protective shell (8) are provided at the connection of the two insulator bodies (1). The front and rear sides of the first protective shell (7) and the second protective shell (8) are connected by the cooperation of the slot and the buckle to form a complete protective shell. A locking block (9) is also provided at the connection between the first protective shell (7) and the second protective shell (8).

3. A composite tension insulator with a protective structure according to claim 2, characterized in that: Two clamping brackets (5) are respectively fixed with a fixing buckle (11) near one end of the U-shaped limiting block (6). The fixing buckle (11) is connected to the U-shaped limiting block (6) through a connecting rope (10). One end of the connecting rope (10) is fixed on the fixing buckle (11), and the other end is firmly connected to the U-shaped limiting block (6) to form an integral structure.

4. A composite tension insulator with a protective structure according to claim 3, characterized in that: The second protective shell (8) has a mounting buckle (12) fixed to its side.

5. A composite tension insulator with a protective structure according to claim 4, characterized in that: The first protective shell (7) and the second protective shell (8) are both embedded with arc-shaped insulating rubber blocks (13) at the top and bottom to increase the sealing between the protective shell and the insulator body (1).

6. A composite tension insulator with a protective structure according to claim 5, characterized in that: A U-shaped support seat (14) is provided on one of the locking caps (4).

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