Suspension type porcelain insulator capable of preventing head from cracking

Abstract

The utility model discloses a suspension type porcelain insulator capable of preventing head cracking, which relates to the technical field of suspension type porcelain insulators, and comprises a porcelain piece, a bump is integrally formed at the top of the porcelain piece, an iron cap is sleeved on the bump, the iron cap comprises a fixing part and a connecting part, the connecting part is of a circular truncated cone structure, the radius of the bottom end of the connecting part is small, and the fixing part and the connecting part are integrally formed. The fixing part surrounds the outer side of the protruding block, a protection piece is arranged on the iron cap and comprises a threaded sleeve and a plurality of first elastic strips, the threaded sleeve is in threaded connection with the fixing part, the first elastic strips are fixedly connected to the threaded sleeve, the first elastic strips are evenly distributed, and the first elastic strips are fixedly connected to the threaded sleeve. The first elastic strip is attached to the outer wall of the connecting part. According to the suspension type porcelain insulator capable of preventing the head from cracking, by arranging the threaded sleeve, the first elastic strip and other structures, the purpose of reinforcing the iron cap is achieved, cracking is prevented, meanwhile, the limiting effect is achieved, and the steel foot is prevented from slipping off.

Description

Technical Field

[0001] The utility model relates to the technical field of suspension porcelain insulators, in particular to a suspension porcelain insulator capable of preventing head cracking. Background Art

[0002] Insulators are devices installed between conductors of different potentials or between conductors and grounded components, and are able to withstand voltage and mechanical stress. Insulators can be classified into ceramic insulators, glass insulators, and composite insulators according to their materials. Ceramic insulators have good chemical stability and strong anti-aging ability.

[0003] Suspension porcelain insulators generally use a ball-and-socket connection structure on high-voltage, extra-high-voltage and UHV lines. During outdoor use, due to the lack of a limiting structure, the steel foot and the iron cap are prone to slippage due to shaking, posing a safety hazard to the circuit.

[0004] Therefore, it is necessary to propose a suspension porcelain insulator that can prevent head cracking to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a suspension porcelain insulator capable of preventing head cracking, so as to solve the problem that due to the lack of a limiting structure, the steel foot and the iron cap are prone to slip due to shaking, etc., which brings potential safety hazards to the circuit.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a suspension porcelain insulator capable of preventing head cracking, comprising a porcelain part, a protrusion integrally formed on the top of the porcelain part, an iron cap mounted on the protrusion, the iron cap comprising a fixing part and a connecting part, the connecting part being a truncated cone-shaped structure with a small radius at the bottom, the fixing part surrounding the outside of the protrusion, a protective part being arranged on the iron cap, the protective part comprising a threaded sleeve and a first elastic strip, a plurality of the first elastic strips being arranged, the threaded sleeve being threadedly connected to the fixing part, the first elastic strip being fixedly connected to the threaded sleeve, the plurality of first elastic strips being evenly distributed, and the first elastic strip being fitted to the outer wall of the connecting part.

[0007] Preferably, adhesive is filled between the iron cap and the protrusion.

[0008] Preferably, a circular ring is sleeved on the outside of the protrusion, and a second elastic strip is fixedly connected to the bottom of the circular ring. The second elastic strip is provided in plurality and the plurality of second elastic strips are evenly distributed, and the bottom of the second elastic strip abuts against the inner wall of the iron cap.

[0009] Preferably, a thread groove is integrally formed on the top of the protrusion, and a thread block is fixedly connected to the inside of the iron cap, and the thread block cooperates with the thread groove.

[0010] Preferably, a square groove is integrally formed at the bottom of the ceramic part, a positioning block is glued inside the square groove by adhesive, and a steel foot is fixedly connected to the bottom of the positioning block.

[0011] Preferably, a groove is provided on the outer wall of the positioning block, and a plurality of grooves are provided.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model achieves the purpose of reinforcing the iron cap and preventing cracking by setting structures such as the threaded sleeve and the first elastic strip, and at the same time achieves the effect of limiting and preventing the steel foot from slipping;

[0014] 2. The bottom of the second elastic strip abuts against the inner wall of the iron cap, squeezing the iron cap from the inside out to improve the stability of the connection and prevent cracking between the iron cap and the bump;

[0015] 3. Set grooves to increase friction, prevent cracking between the positioning block and the porcelain parts, and improve the connection strength between the porcelain parts and the steel feet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the structure of a suspension porcelain insulator capable of preventing head cracking.

[0017] Figure 2 The utility model is a schematic diagram of the cross-sectional structure of a suspension porcelain insulator capable of preventing head cracking.

[0018] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure: 1, porcelain part; 2, steel foot; 3, iron cap; 4, protective part; 5, threaded sleeve; 6, first elastic strip; 7, thread groove; 8, thread block; 9, second elastic strip; 10, square groove; 11, positioning block; 12, groove; 13, protrusion; 14, ring; 15, fixing part; 16, connecting part. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides Figure 1 to Figure 3A suspension porcelain insulator that can prevent head cracking is shown, comprising a porcelain part 1, a protrusion 13 is integrally formed on the top of the porcelain part 1, an iron cap 3 is mounted on the protrusion 13, adhesive is filled between the iron cap 3 and the protrusion 13, the iron cap 3 comprises a fixing part 15 and a connecting part 16, the connecting part 16 is a truncated cone structure, and the radius of the bottom end is small, the fixing part 15 surrounds the outside of the protrusion 13, and the connecting part 16 is provided with a connection port for docking with the steel foot 2. A square groove 10 is integrally formed on the bottom of the porcelain part 1, a positioning block 11 is glued inside the square groove 10 by adhesive, and the bottom of the positioning block 11 is fixedly connected to the steel foot 2. When in use, the iron cap 3 is connected to the ball socket of the steel foot 2 on an adjacent suspension porcelain insulator to form a suspension porcelain insulator string.

[0022] Taking into account that when the suspension porcelain insulator string is used outdoors, the steel foot 2 and the iron cap 3 are prone to slip due to shaking and other reasons, which brings safety hazards to the circuit, in order to improve safety, a protective member 4 is provided on the iron cap 3, and the protective member 4 includes a threaded sleeve 5 and a first elastic strip 6. The first elastic strip 6 is provided in plurality, the threaded sleeve 5 is threadedly connected to the fixing portion 15, the first elastic strip 6 is fixedly connected to the threaded sleeve 5, the plurality of first elastic strips 6 are evenly distributed, the first elastic strip 6 is attached to the outer wall of the connecting portion 16, and the first elastic strip 6 has a certain elasticity.

[0023] Before installation and use, the threaded sleeve 5 is passed through the connecting part 16 and sleeved on the fixing part 15, and the threaded sleeve 5 is rotated to fix it on the fixing part 15, so as to achieve the purpose of reinforcing the iron cap 3 and prevent cracking; since the first elastic strip 6 has a certain elasticity, during the rotation of the threaded sleeve 5, the first elastic strip 6 is always in contact with the outer wall of the connecting part 16.

[0024] When two adjacent suspension porcelain insulators need to be assembled, the multiple first elastic strips 6 are staggered with the connection port on the iron cap 3 for the steel foot 2 to be connected, which does not affect the ball-and-socket connection with the steel foot 2 on the adjacent suspension porcelain insulator through the iron cap 3. After the connection is completed, the threaded sleeve 5 is rotated so that one of the first elastic strips 6 corresponds to the connection port, achieving a limiting effect to prevent the steel foot 2 from slipping off. The first elastic strip 6 corresponds to the connection port, and even if it is squeezed by the steel foot 2, the first elastic strip 6 will not bend excessively, ensuring that the steel foot 2 will not slip off.

[0025] The utility model achieves the purpose of reinforcing the iron cap 3 to prevent cracking by arranging structures such as the threaded sleeve 5 and the first elastic strip 6, and simultaneously achieves the effect of limiting to prevent the steel foot 2 from slipping off.

[0026] In order to improve the connection strength between the iron cap 3 and the protrusion 13 and prevent cracking, a circular ring 14 is sleeved on the outside of the protrusion 13, and a second elastic strip 9 is fixedly connected to the bottom of the circular ring 14. The second elastic strip 9 is provided in multiple numbers, and the multiple second elastic strips 9 are evenly distributed, and the bottom of the second elastic strip 9 abuts against the inner wall of the iron cap 3. A thread groove 7 is integrally formed on the top of the protrusion 13, and a thread block 8 is fixedly connected to the inside of the iron cap 3, and the thread block 8 cooperates with the thread groove 7.

[0027] Put the ring 14 together with the second elastic strip 9 on the protrusion 13, then put the iron cap 3 on the threaded groove 7, the threaded block 8 corresponds to the threaded groove 7, rotate the iron cap 3, and complete the connection between the iron cap 3 and the protrusion 13. During this process, the bottom of the second elastic strip 9 abuts against the inner wall of the iron cap 3, squeezing the iron cap 3 from the inside to the outside, thereby improving the stability of the connection and preventing cracks from occurring between the iron cap 3 and the protrusion 13. At the same time, when filling the adhesive, the adhesive penetrates between the second elastic strip 9 and the inner wall of the iron cap 3 to improve the connection stability.

[0028] In order to improve the connection strength between the porcelain piece 1 and the steel foot 2, a groove 12 is opened on the outer wall of the positioning block 11, and a plurality of grooves 12 are provided to increase friction, prevent cracking between the positioning block 11 and the porcelain piece 1, and improve the connection strength between the porcelain piece 1 and the steel foot 2.

Claims

1. A suspension porcelain insulator capable of preventing head cracking, comprising a porcelain part (1), characterized in that: A protrusion (13) is integrally formed on the top of the porcelain part (1), and an iron cap (3) is mounted on the protrusion (13). The iron cap (3) includes a fixing portion (15) and a connecting portion (16). The connecting portion (16) is a truncated cone structure with a small radius at the bottom. The fixing portion (15) surrounds the outer side of the protrusion (13). A protective member (4) is arranged on the iron cap (3). The protective member (4) includes a threaded sleeve (5) and a first elastic strip (6). A plurality of the first elastic strips (6) are provided. The threaded sleeve (5) is threadedly connected to the fixing portion (15). The first elastic strip (6) is fixedly connected to the threaded sleeve (5). The plurality of first elastic strips (6) are evenly distributed. The first elastic strip (6) is attached to the outer wall of the connecting portion (16).

2. A suspension porcelain insulator capable of preventing head cracking according to claim 1, characterized in that: Adhesive is filled between the iron cap (3) and the protrusion (13).

3. A suspension porcelain insulator capable of preventing head cracking according to claim 1, characterized in that: A circular ring (14) is sleeved on the outside of the protrusion (13), and a second elastic strip (9) is fixedly connected to the bottom of the circular ring (14). The second elastic strip (9) is provided in plurality, and the plurality of second elastic strips (9) are evenly distributed, and the bottom of the second elastic strip (9) abuts against the inner wall of the iron cap (3).

4. A suspension porcelain insulator capable of preventing head cracking according to claim 1, characterized in that: A thread groove (7) is integrally formed at the top end of the protrusion (13), and a thread block (8) is fixedly connected to the inside of the iron cap (3), and the thread block (8) cooperates with the thread groove (7).

5. A suspension porcelain insulator capable of preventing head cracking according to claim 1, characterized in that: The bottom of the ceramic part (1) is integrally formed with a square groove (10), the interior of the square groove (10) is glued with a positioning block (11) by means of an adhesive, and the bottom of the positioning block (11) is fixedly connected with a steel foot (2).

6. A suspension porcelain insulator capable of preventing head cracking according to claim 5, characterized in that: A groove (12) is provided on the outer wall of the positioning block (11), and a plurality of grooves (12) are provided.

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