High-temperature-resistant and high-voltage-resistant electric porcelain insulator

Abstract

The utility model discloses a high temperature and high voltage resistant electric porcelain insulator, which comprises an upper half part and a lower half part, the upper half part and the lower half part respectively comprise a porcelain core tube and a porcelain umbrella skirt arranged outside the porcelain core tube, and the upper half part and the lower half part are connected through a connecting piece. The connecting piece comprises a trapezoidal frame fixed at the bottom of the porcelain core tube at the upper half part and a cylinder fixed at the top of the porcelain core tube at the lower half part, a disc is fixed at the bottom of the trapezoidal frame, a round hole allowing the cylinder to penetrate through is formed in the disc, the top of the cylinder penetrates through the disc and then is connected with a round plate, and the diameter of the round plate is larger than that of the round hole; the side wall of the disc is provided with an open hole communicated with the round hole, and the cylinder is provided with a reducing part. According to the utility model, the insulator adopts a combined structure which is different from the existing butterfly insulator, the combined connection structure in the scheme is simple and convenient to disassemble, and when a worker finds that a certain part of one insulator is damaged, the insulator can be easily disassembled and replaced without replacing the whole insulator.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of facilities for education, in particular to a high temperature and high voltage electric porcelain insulator. BACKGROUND

[0002] Porcelain insulator is widely used in high voltage transmission, is installed between the conductor of different potential or conductor and ground component, can withstand voltage and mechanical stress effect device, the current insulator is generally integral, once part of damage, then need to replace the whole, there are also part of butterfly type insulator on the market, that is, combined insulator, its combined structure adopts rigid connection and soft connection, but the connection structure part is not convenient to disassemble, and the butterfly type insulator is not for replacing the insulator part, but for adapting the insulator to install in special scene.

[0003] Therefore, in order to correct the above-mentioned defects, we propose a high temperature and high voltage electric porcelain insulator. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem of providing a high temperature and high voltage electric porcelain insulator.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high temperature and high voltage electric porcelain insulator, including upper half and lower half, the upper half and lower half all include porcelain core tube and porcelain umbrella skirt at the outside of porcelain core tube, the upper half and lower half are connected through connecting piece, connecting piece includes trapezoidal frame fixed in the bottom of porcelain core tube of upper half and cylinder fixed in the top of porcelain core tube of lower half, the bottom of trapezoidal frame is fixed with disc, disc is equipped with round hole for cylinder to pass through, the top of cylinder is connected with round plate after passing through disc, the diameter of round plate is greater than the diameter of round hole, the side wall of disc is equipped with opening hole intercommunicating with round hole, the cylinder is provided with reduced diameter portion, and the reduced diameter portion moves out from opening hole.

[0006] Further, the height of the reduced diameter portion, the opening hole and the disc is consistent.

[0007] Further, the inner concave surface section of the reduced diameter portion is arc-shaped, and the two inner side surfaces of the opening hole are arc-shaped.

[0008] Further, the inner top of the trapezoidal frame is provided with an insulating rubber pad.

[0009] Further, the connecting piece is made of porcelain.

[0010] Further, the outer walls of the porcelain core tube and the porcelain umbrella skirt are coated with a heat-insulating and insulating coating.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the insulator in this utility model adopts a combined structure, which is different from the existing butterfly insulator. The combined connection structure in this case is simple and easy to disassemble. When the staff finds that a certain part of an insulator is damaged, it can be easily disassembled and replaced without replacing the entire insulator. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the connecting component structure in this utility model;

[0014] Figure 3 This is a schematic diagram of the cylindrical structure in this utility model;

[0015] Figure 4 This is a top view of the disc structure in this utility model.

[0016] Numbering on the map:

[0017] 1. Upper half; 2. Lower half; 3. Ceramic core tube; 4. Ceramic umbrella skirt; 5. Heat insulation coating; 6. Connector; 61. Trapezoidal frame; 62. Disc; 63. Cylinder; 64. Reduced diameter section; 65. Opening; 66. Circular plate; 67. Insulating rubber pad. Detailed Implementation

[0018] 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.

[0019] This utility model provides a technical solution:

[0020] Please see Figures 1-4 A high-temperature and high-voltage resistant porcelain insulator includes an upper half 1 and a lower half 2. Both the upper half 1 and the lower half 2 include a porcelain core tube 3 and porcelain awnings 4 located outside the porcelain core tube 3. The outer walls of the porcelain core tube 3 and the porcelain awnings 4 are coated with a heat-insulating coating 5, which extends the insulator's lifespan. The heat-insulating coating 5 can be made of materials such as glass fiber. The upper half 1 and the lower half 2 are connected by a connector 6. This allows for replacement of only one part of the insulator when either the upper or lower part is damaged, rather than replacing the entire insulator. Specifically:

[0021] The connector 6 is made entirely of ceramic. The connector 6 includes a trapezoidal frame 61 fixed to the bottom of the ceramic core tube 3 in the upper half 1 and a cylinder 63 fixed to the top of the ceramic core tube 3 in the lower half 2. A disc 62 is fixed to the bottom of the trapezoidal frame 61. A circular hole is opened on the disc 62 for the cylinder 63 to pass through. The top of the cylinder 63 passes through the disc 62 and is connected to a circular plate 66. The diameter of the circular plate 66 is larger than the diameter of the circular hole. An opening 65 communicating with the circular hole is opened on the side wall of the disc 62. The cylinder 63 has a reduced diameter section 64, which moves out from the opening 65.

[0022] Even when the two separate, the lower half 2 is brought closer to the upper half 1, so that the cylinder 63 moves upward and the reduced diameter part 64 on the cylinder 63 is aligned with the opening 65 of the disk 62. At the same time, the lower half 2 is moved to the side, so that the reduced diameter part 64 moves out of the opening 65, and the two are separated.

[0023] The three components, namely the reduced diameter section 64, the opening 65, and the disk 62, have the same height. This ensures that the reduced diameter section 64 can match the opening 65 only when it moves to a certain threshold, thus preventing accidental disengagement.

[0024] To further prevent accidental detachment, the concave cross-section of the reduced diameter portion 64 is arc-shaped, and both inner surfaces of the opening 65 are arc-shaped. In other words, the shape and structure of the reduced diameter portion 64 and the opening 65 provide a certain degree of obstruction for their detachment.

[0025] In addition, to prevent the cylinder 63 from rising to the threshold, the inner top of the trapezoidal frame 61 has an insulating rubber pad 67. That is, when the cylinder 63 rises to the threshold, it will be blocked by the insulating rubber pad 67. At this time, more force must be used to push the cylinder 63 upward to compress the insulating rubber pad 67 until the threshold is reached.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature and high-voltage resistant porcelain insulator, comprising an upper half (1) and a lower half (2), wherein both the upper half (1) and the lower half (2) include a porcelain core tube (3) and a porcelain shed (4) located outside the porcelain core tube (3), characterized in that: The upper part (1) and the lower part (2) are connected by a connector (6). The connector (6) includes a trapezoidal frame (61) fixed at the bottom of the ceramic core tube (3) in the upper part (1) and a cylinder (63) fixed at the top of the ceramic core tube (3) in the lower part (2). A disc (62) is fixed at the bottom of the trapezoidal frame (61). A circular hole is opened on the disc (62) for the cylinder (63) to pass through. After the top of the cylinder (63) passes through the disc (62), a circular plate (66) is connected. The diameter of the circular plate (66) is larger than the diameter of the circular hole. An opening (65) communicating with the circular hole is opened on the side wall of the disc (62). The cylinder (63) has a reduced diameter part (64) which moves out from the opening (65).

2. The high-temperature and high-voltage resistant porcelain insulator according to claim 1, characterized in that: The diameter reduction section (64), the opening (65), and the disc (62) are all at the same height.

3. The high-temperature and high-voltage resistant porcelain insulator according to claim 1, characterized in that: The concave cross-section of the reduced diameter portion (64) is arc-shaped, and both inner surfaces of the opening (65) are arc-shaped.

4. The high-temperature and high-voltage resistant porcelain insulator according to claim 1, characterized in that: The inner top of the trapezoidal frame (61) has an insulating rubber pad (67).

5. The high-temperature and high-voltage resistant porcelain insulator according to claim 1, characterized in that: The connector (6) is made entirely of ceramic.

6. The high-temperature and high-voltage resistant porcelain insulator according to claim 1, characterized in that: The outer walls of the ceramic core tube (3) and the ceramic umbrella skirt (4) are coated with a heat-insulating coating (5).

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