Insulating protection cover for parallel groove clamp of transformer

Abstract

The utility model discloses a transformer parallel ditch wire clamp insulation protective cover relates to the technical field of protective cover, this transformer parallel ditch wire clamp insulation protective cover, including protective cover no.

Description

Technical Field

[0001] This utility model relates to the field of protective cover technology, and in particular to an insulating protective cover for transformer parallel groove clamps. Background Technology

[0002] In power transmission and distribution networks, transformer parallel groove clamps, as key components for effectively connecting conductors to transformer terminals, operate under long-term exposure to complex outdoor environments. Their operational stability directly determines the power supply reliability of transmission and distribution lines. Rainwater, fog, dust, industrial pollutants, and other impurities in the outdoor environment can easily penetrate the connection points of the parallel groove clamps, causing oxidation and corrosion on the contact surface. This not only significantly increases contact resistance, resulting in additional energy losses during transmission, but may also cause localized overheating due to excessive resistance, leading to serious faults such as clamp burning and wire breakage. Furthermore, if conductive components (such as rainwater containing electrolytes or industrial dust) are mixed in with the impurities, short circuits may occur between clamp contacts, posing a significant threat to the safe operation of the entire transmission and distribution network.

[0003] Existing insulating protective covers mostly adopt a simple snap-fit ​​structure, with the joints of the cover relying solely on the natural seal of the splicing gaps, without a dedicated sealing structure. At the same time, the protective cover and the entry / exit ports of the wires also lack a compatible sealing design. Rainwater, sand, and other impurities can easily seep into the interior of the cover through the joints and gaps at the wire ports, failing to effectively prevent impurities from contacting the wire clamps. The risk of wire clamp oxidation and corrosion, as well as short circuits, remains high, and protective failures occur frequently.

[0004] In view of this, an insulating protective cover for transformer parallel groove clamps is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an insulating protective cover for transformer parallel groove clamps that can solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an insulating protective cover for a transformer parallel groove clamp, comprising a protective cover one and a protective cover two, wherein two guide pins and two positioning sleeves are provided on each side of the inner wall of the protective cover one and the protective cover two, and the guide pins and positioning sleeves on the protective cover one are mutually compatible with those on the protective cover two.

[0007] A bolt head is provided at the top of the outer edge of the first protective cover, and a metal threaded post is fixedly connected to the bottom of the bolt head. A threaded sleeve is fixedly connected inside the second protective cover.

[0008] Preferably, a sealing strip is provided at one edge of the protective cover one near the protective cover two;

[0009] The second protective cover has a sealing groove near the edge of the first protective cover.

[0010] Preferably, both ends of the first protective cover and the second protective cover are provided with buckles, and the upper and lower ends of the first protective cover and the second protective cover are respectively provided with wire inlet tubes and wire outlet tubes.

[0011] Both the inlet and outlet conduits of the wires are equipped with silicone sealing rings.

[0012] Preferably, the inner walls of the first and second protective covers are provided with anti-slip rubber pads.

[0013] Preferably, the outer walls of the first and second protective covers are provided with a glass fiber reinforced silicone rubber layer.

[0014] Preferably, the outer sides of the first and second protective covers are fitted with rubber protective sleeves;

[0015] The surface of the rubber protective cover is coated with a reflective coating.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The transformer parallel groove clamp insulation protective cover has a sealing strip on the edge of the protective cover one near the edge of the protective cover two, and a corresponding sealing groove on the edge of the protective cover two near the edge of the protective cover one. When the two covers are fastened together, the sealing strip will be embedded in the sealing groove and will be squeezed to produce elastic deformation, which will fully fill the tiny gaps at the connection seam of the cover to form the first sealing barrier. At the same time, the upper and lower ends of the protective cover one and the protective cover two are respectively provided with wire inlet pipe and wire outlet pipe, and the silicone sealing ring that is movably connected to the wire inlet pipe and the wire outlet pipe will tightly fit the outer wall of the wire and the pipe opening when the wire passes through, forming the second sealing barrier. The double sealing can effectively prevent rainwater, dust and other external impurities from entering the interior of the cover, and avoid oxidation corrosion or short circuit failure of the internal clamp connection points due to contact with impurities.

[0018] 2. The transformer parallel groove clamp insulation protective cover has a bolt head at the top of the outer edge of the first protective cover, and a metal threaded post is fixedly connected to the bottom of the bolt head. The inside of the second protective cover is fixedly connected to a threaded sleeve that matches the metal threaded post. After the cover is snapped and aligned, rotating the bolt head will drive the metal threaded post and the threaded sleeve to make a threaded connection, thereby achieving the initial fixation of the two covers and ensuring that the covers will not easily separate under normal conditions. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of an insulating protective cover for a transformer parallel groove clamp according to the present invention;

[0021] Figure 2This is a cross-sectional schematic diagram of an insulating protective cover for a transformer parallel groove clamp according to the present invention;

[0022] Figure 3 This is a top view schematic diagram of an insulating protective cover for a transformer parallel groove clamp according to the present invention.

[0023] Reference numerals in the attached diagram: 1. Protective cover one; 2. Protective cover two; 3. Rubber protective sleeve; 4. Buckle; 5. Silicone sealing ring; 6. Sealing strip; 7. Sealing groove; 8. Guide pin; 9. Positioning groove; 10. Metal threaded post; 11. Anti-slip rubber pad; 12. Threaded sleeve; 13. Wire outlet tube; 14. Wire inlet tube; 15. Reflective coating; 16. Fiberglass reinforced silicone rubber layer; 17. Bolt head. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Please see Figure 1-3 This utility model provides a technical solution: an insulating protective cover for a transformer parallel groove clamp, including a protective cover 1 and a protective cover 2, wherein a sealing strip 6 is provided on the edge of the protective cover 1 near the protective cover 2.

[0029] The protective cover 2 is provided with a sealing groove 7 near the edge of the protective cover 1. When the sealing strip 6 of the upper cover 1 and the sealing groove 7 of the lower cover 2 are fastened together, they are squeezed and produce elastic deformation, which fills the tiny gaps at the joint of the cover body, preventing rainwater, dust and other substances from entering the internal contact wire clamping point, and avoiding oxidation corrosion or short circuit failure.

[0030] Two guide pins 8 and two positioning sleeves 9 are provided on each side of the inner wall of protective cover 1 and protective cover 2, and the guide pins 8 and positioning sleeves 9 on protective cover 1 are compatible with those on protective cover 2.

[0031] When the protective cover is fastened, the upper cover 1 of the protective cover is inserted into the positioning sleeve 9 of the lower cover 2 of the protective cover through two guide pins 8, and the alignment is quickly completed.

[0032] A bolt head 17 is provided at the top of the outer edge of the protective cover 1. A metal threaded post 10 is fixedly connected to the bottom of the bolt head 17. A threaded sleeve 12 is fixedly connected inside the protective cover 2. Rotating the bolt head 17 drives the metal threaded post 10 to be threadedly connected to the threaded sleeve 12 on the protective cover 2, thus achieving initial fixation.

[0033] Both ends of the protective cover 1 and the protective cover 2 are provided with buckles 4, and the upper and lower ends of the protective cover 1 and the protective cover 2 are respectively provided with wire inlet tube 14 and wire outlet tube 13.

[0034] Both the wire inlet tube 14 and the wire outlet tube 13 are equipped with silicone sealing rings 5;

[0035] The inner walls of protective cover 1 and protective cover 2 are equipped with anti-slip rubber pads 11, which not only ensure the anti-slip effect but also buffer vibration.

[0036] The outer walls of protective cover 1 and protective cover 2 are provided with a glass fiber reinforced silicone rubber layer 16, which combines lightweight and high strength and can resist external impact without deformation.

[0037] The outer sides of the protective cover 1 and the protective cover 2 are fitted with rubber protective sleeves 3. There are no pry points on the surface. They not only provide the protection of the anti-theft cover, but also prevent the screws from being corroded and rusted by rainwater, ensuring that they can be easily disassembled during later maintenance.

[0038] The surface of the rubber protective cover 3 is provided with a reflective coating 15 to remind pedestrians to pay attention to the power facilities here and reduce the risk of pedestrians accidentally touching them.

[0039] Working principle: The protective cover consists of two mutually compatible protective covers, 1 and 2. Both of them have two guide pins 8 and two positioning sleeves 9 on both sides of their inner walls. The guide pins 8 and positioning sleeves 9 of protective cover 1 are precisely matched with the corresponding parts of protective cover 2. During the fastening operation, simply insert the guide pin of protective cover 1 into the positioning sleeve 9 of protective cover 2 to quickly complete the alignment and positioning of the two covers. This avoids poor sealing or failure of fixation due to alignment deviation, and greatly improves the installation efficiency and accuracy.

[0040] A sealing strip 6 is provided on the edge of the protective cover 1 near the protective cover 2, and a sealing groove 7 is provided on the edge of the protective cover 2 near the protective cover 1. When the two covers are fastened together, the sealing strip 6 will be embedded in the sealing groove 7 and will be squeezed to produce elastic deformation, fully filling the tiny gaps at the connection seam of the covers to form the first sealing barrier.

[0041] Meanwhile, the upper and lower ends of the protective cover 1 and the protective cover 2 are respectively provided with wire inlet tube 14 and wire outlet tube 13, and the silicone sealing ring 5 that is movably connected to the wire inlet tube 14 and the wire outlet tube 13 will tightly fit the outer wall of the wire and the tube opening when the wire passes through, forming a second sealing barrier. The double sealing can effectively prevent rainwater, dust and other external impurities from entering the inside of the cover, and avoid oxidation corrosion or short circuit failure of the internal wire clamp connection point due to contact with impurities.

[0042] The fixing mechanism adopts a dual design. The top edge of the outer wall of the protective cover 1 is provided with a bolt head 17, and the bottom of the bolt head is fixedly connected to a metal threaded post 10. The inside of the protective cover 2 is fixedly connected to a threaded sleeve 12 that matches the metal threaded post 10. After the cover is snapped and aligned, rotating the bolt head 17 can drive the metal threaded post 10 and the threaded sleeve 12 to make a threaded connection, thereby achieving the initial fixing of the two covers and ensuring that the covers will not easily separate under normal conditions.

[0043] Meanwhile, after the protective cover 1 and the protective cover 2 are fastened and fixed, a rubber protective cover 3 will be fitted on the outside of both. The rubber protective cover 3 can not only wrap the bolt head 17 threaded connection part outside the cover, but also form an auxiliary fixing effect by its own elasticity to fit the outer wall of the cover. Moreover, there are no prying fulcrums on its surface, which can effectively prevent others from maliciously prying and causing the cover to fall off, thus taking into account both fixing and anti-theft functions.

[0044] Both protective covers 1 and 2 are equipped with anti-slip rubber pads 11 on their inner walls. On the one hand, this increases the friction between the cover and the internal wire clamp connection points, preventing the wire clamps from shifting due to vibration inside the cover. On the other hand, the good elasticity of the rubber material can buffer the vibration transmitted to the cover from the outside, such as wind force and equipment operation vibration, to avoid the wire clamp connection points from loosening or the internal components of the cover from vibration. Both protective covers 1 and 2 are equipped with a glass fiber reinforced silicone rubber layer 16 on their outer walls. The glass fiber reinforcement material can significantly improve the structural strength of the cover, making it able to resist external impacts without deformation and ensuring the integrity of the cover. At the same time, the silicone rubber material is lightweight, so that the weight of the cover will not increase the load on the wire clamps or wires, making it suitable for the installation requirements of outdoor power facilities.

[0045] Furthermore, the surface of the rubber protective cover 3 is provided with a reflective coating 15, which can reflect external light such as vehicle lights and street lights at night or in low-light environments, reminding pedestrians and vehicles to pay attention to the power facilities here, reducing the risk of damage to facilities or injury to personnel due to accidental touch or collision by pedestrians.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An insulating protective cover for a transformer parallel groove clamp, comprising a protective cover one (1) and a protective cover two (2), characterized in that: The inner walls of the first protective cover (1) and the second protective cover (2) are provided with two guide pins (8) and two positioning sleeves (9), and the guide pins (8) and positioning sleeves (9) on the first protective cover (1) are compatible with those on the second protective cover (2). The protective cover one (1) has a bolt head (17) at the top of the outer wall edge, and a metal threaded column (10) is fixedly connected to the bottom of the bolt head (17). The protective cover two (2) has a threaded sleeve (12) fixedly connected inside.

2. The transformer parallel groove clamp insulation protective cover according to claim 1, characterized in that: A sealing strip (6) is provided on one side edge of the protective cover one (1) near the protective cover two (2). The protective cover 2 (2) has a sealing groove (7) near the edge of the protective cover 1 (1).

3. The transformer parallel groove clamp insulation protective cover according to claim 2, characterized in that: Both ends of the first protective cover (1) and the second protective cover (2) are provided with buckles (4), and the upper and lower ends of the first protective cover (1) and the second protective cover (2) are respectively provided with wire inlet pipe (14) and wire outlet pipe (13). Both the wire inlet tube (14) and the wire outlet tube (13) are equipped with silicone sealing rings (5).

4. The transformer parallel groove clamp insulation protective cover according to claim 3, characterized in that: The inner walls of the first protective cover (1) and the second protective cover (2) are provided with anti-slip rubber pads (11).

5. The transformer parallel groove clamp insulation protective cover according to claim 4, characterized in that: The outer walls of the first protective cover (1) and the second protective cover (2) are provided with a glass fiber reinforced silicone rubber layer (16).

6. The transformer parallel groove clamp insulation protective cover according to claim 5, characterized in that: The outer sides of the first protective cover (1) and the second protective cover (2) are fitted with rubber protective covers (3); The surface of the rubber protective sleeve (3) is provided with a reflective coating (15).

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