Rubber sleeve structure of pole-mounted circuit breaker

Abstract

The utility model provides a rubber sleeve structure of a pole-mounted circuit breaker, which comprises a pole and further comprises a rubber sleeve structure, the rubber sleeve structure is divided into an upper layer structure and a lower layer structure, the upper layer structure is in a convex sleeve shape, one side of the upper layer structure is provided with an avoiding hole for threading a wire, and a convex ring attached to the pole is arranged in the sleeve; the lower-layer structure is in a disc shape, and the edge of the disc is folded downwards to form a turned-over edge used for being connected to the pole in a sleeving mode. The contact area between the rubber sleeve structure and the outer surface of the pole is increased by utilizing the shape matched with the outer surface of the pole, so that the friction force between the rubber sleeve structure and the outer surface of the pole is increased, the situation that the rubber sleeve structure rotates or displaces on the pole due to extreme weather is reduced, and the stability is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of circuit breaker, in particular to a rubber sleeve structure of pole-mounted circuit breaker. BACKGROUND

[0002] The pole-mounted circuit breaker is widely used in distribution line, and plays a role in protection and control when short circuit, overload and ground fault occur, so as to prevent the overheat of power equipment and the burning of circuit. In addition, the pole-mounted circuit breaker can also be used to separate the equipment or line, so as to carry out safe maintenance and maintenance on the equipment.

[0003] In the actual application scene, the upper part of the pole of the pole-mounted circuit breaker is usually connected with the wire, and a rubber sleeve structure is installed, and the original design is to effectively isolate the live component from the external environment, prevent the damage of the external environment to the connection between the upper part of the pole and the wire, cause the occurrence of short circuit and other conditions, and thus ensure the safe and stable operation of the electrical system. Such rubber sleeve structure is usually composed of a single cylindrical rubber sleeve, and an avoiding hole is formed on the sleeve wall to facilitate the threading of the wire. However, this structure is relatively simple and has certain deficiencies. Especially in the case of strong wind and other bad weather conditions, due to the lack of reliable fixing mechanism to fix it on the pole-mounted circuit breaker, the rubber sleeve structure is easy to rotate or displace on the pole, and then pull the wire to twist. This phenomenon not only affects the normal state of the wire, but also seriously reduces the service life of the wire and causes irreversible damage to it. SUMMARY

[0004] In order to reduce the rotation or displacement of the rubber sleeve structure on the pole due to extreme weather, the application provides a rubber sleeve structure of pole-mounted circuit breaker.

[0005] The rubber sleeve structure of pole-mounted circuit breaker provided by the application adopts the following technical scheme:

[0006] A rubber sleeve structure of pole-mounted circuit breaker, comprising a pole, characterized in that it further comprises a rubber sleeve structure, the rubber sleeve structure is divided into upper and lower two-layer structures, the upper structure is in the shape of a convex sleeve, and an avoiding hole for threading the wire is formed on one side, and a convex ring is arranged in the sleeve to fit the pole; the lower structure is in the shape of a disc, and the edge of the disc is folded downward to form a flange for sleeving on the pole.

[0007] Through the above technical scheme, the shape matched with the outer surface of the pole is used to increase the contact area between the rubber sleeve structure and the outer surface of the pole, so as to increase the friction between them and reduce the rotation or displacement of the rubber sleeve structure on the pole due to extreme weather, thereby enhancing the stability.

[0008] Preferably, the upper structure of the rubber sleeve avoids the hole outwardly extending to form a ring cylinder; the outer peripheral surface of the ring cylinder away from the hole is provided with a plastic clamp for locking the port of the ring cylinder.

[0009] Through the above technical scheme, the outwardly extending ring cylinder further protects the electric wire, and the plastic clamp is arranged to lock the port of the ring cylinder to prevent rain and dust from entering the interior from the port and affecting safety.

[0010] Preferably, the ring cylinder is provided with a gap below the ring cylinder, the gap starts from below the end of the ring cylinder away from the pole and extends to the position of the turned-up edge of the lower structure of the rubber sleeve, so that the rubber sleeve structure is completely separated; the gap is provided with a fitting surface outwardly extending on both sides, the fitting surfaces on both sides are fitted to each other, and a plurality of buckles for buckling the fitting surfaces are arranged on the fitting surfaces.

[0011] Through the above technical scheme, the gap is arranged to facilitate the operator to install the rubber sleeve structure on the pole.

[0012] Preferably, the turned-up edge further extends downward to form a sleeve ring structure on the basis of completely covering the bottom surface of the pole, and the gap also extends to the sleeve ring structure.

[0013] Through the above technical scheme, the area range of the rubber sleeve structure directly contacting with the pole is further increased, and the upward movement trend of the rubber sleeve structure in strong wind weather is limited.

[0014] Preferably, the fitting surface near the sleeve ring structure is provided with a buckle.

[0015] Through the above technical scheme, a buckle must be arranged here to enhance the stability of the overall structure and avoid the damage of the rubber sleeve structure from this place in extreme weather.

[0016] Preferably, a plurality of clamping blocks are circumferentially clamped on the outer peripheral surface of the lower structure of the rubber sleeve.

[0017] Through the above technical scheme, the clamping blocks are used to enhance the pressure between the lower structure of the rubber sleeve and the pole, thereby further enhancing the friction and limiting the upward movement trend of the rubber sleeve structure in strong wind weather.

[0018] Preferably, the rubber sleeve structure is made of methyl vinyl silicone rubber.

[0019] Through the above technical scheme, the methyl vinyl silicone rubber has excellent high and low temperature resistance, arc resistance, non-stickiness and hydrophobicity on the surface, which makes it not easy to adhere to other substances or absorb water; and the chemical properties are very stable, which is very suitable as a material for making the rubber sleeve structure.

[0020] The technical effect of the utility model mainly embodies in following aspects:

[0021] 1、 the utility model discloses the shape that is matched with the outer surface of pole post is designed to increase the contact area between rubber sleeve structure and the outer surface of pole post, thereby increasing the friction between both;

[0022] 2、 the utility model discloses the further downward extension of a section of sleeve ring structure is formed on the basis of completely covering the bottom surface of pole post to the flanging, continue to increase the contact area while playing the trend of the rubber sleeve structure in the gale weather to the upward activity;

[0023] 3、 the utility model discloses the pressure between rubber sleeve structure and pole post is strengthened through fastener, thereby continue to enhance the friction, and simultaneously further limit the trend of rubber sleeve structure in the gale weather to the upward activity. DRAWINGS

[0024] Fig. 1 It is the overall structure schematic diagram of the embodiment of the application;

[0025] Fig. 2 It is the cross section schematic diagram of the rubber sleeve structure of the embodiment of the application.

[0026] Fig. 1, pole post;2, rubber sleeve structure;21, upper structure;22, avoid hole;23, convex ring;24, ring cylinder;25, lower structure;26, flanging;27, sleeve ring structure;3, plastic clamp;4, notch;5, fit face;6, fastener;7, clamping block. DETAILED DESCRIPTION

[0027] The following combines the drawings of the embodiment of the application Figs. 1-2 , the specific implementation of the utility model is further detailed to make the technical scheme of the utility model more easily understood and mastered.

[0028] The embodiment of the application discloses a rubber sleeve structure of pole-mounted circuit breaker:

[0029] Refer to Figs. 1-2The utility model relates to a rubber sleeve structure of pole-mounted circuit breaker, which comprises a pole 1 and a rubber sleeve structure 2, wherein the rubber sleeve structure 2 is divided into upper and lower layers, the upper layer structure 21 is in the shape of a convex sleeve and has an avoiding hole 22 for passing through the wire on one side, and a convex ring 23 is arranged in the sleeve and adheres to the pole 1; the lower layer structure 25 is in the shape of a disc, and the edge of the disc is folded downward to form a flange 26 for sleeving the pole 1. The shape of the rubber sleeve structure 2 matches the outer surface of the pole 1 to increase the contact area between the rubber sleeve structure 2 and the outer surface of the pole 1, thereby increasing the friction between them and reducing the rotation or displacement of the rubber sleeve structure 2 on the pole 1 due to extreme weather, thereby enhancing the stability. The rubber sleeve structure 2 is made of methyl vinyl silicone rubber. The methyl vinyl silicone rubber has excellent high and low temperature resistance, arc resistance, non-stickiness and hydrophobicity on the surface, which makes it not easy to adhere to other substances or absorb water, and has very stable chemical properties, which is very suitable for making the rubber sleeve structure 2.

[0030] Referring to Figs. 1-2 , the outer edge of the avoiding hole 22 of the upper layer structure 21 of the rubber sleeve extends outward to form a ring cylinder 24; a plastic clamp 3 is arranged on the outer circumferential surface of the end of the ring cylinder 24 away from the avoiding hole 22, and the plastic clamp 3 is used to lock the port of the ring cylinder 24. The outwardly extending ring cylinder 24 further protects the wire, and the plastic clamp 3 is arranged to lock the port of the ring cylinder 24 to prevent rain and dust from entering the inside from the port and affecting safety.

[0031] Referring to Fig. 1 , a gap 4 is arranged below the ring cylinder 24, which starts from below the end of the ring cylinder 24 away from the pole 1 and extends to the position of the flange 26 of the lower layer structure 25 of the rubber sleeve, thereby achieving complete separation of the rubber sleeve structure 2; the gap 4 has adhering surfaces 5 extending outward on both sides, the adhering surfaces 5 on both sides adhere to each other, and a plurality of buckles 6 for buckling the adhering surfaces 5 are arranged on the adhering surfaces 5. The gap 4 is arranged to facilitate the operator to install the rubber sleeve structure 2 on the pole 1. During operation, the operator opens the buckles 6, installs the rubber sleeve structure 2 on the pole 1 through the gap 4, and then pulls out the wire from the ring cylinder 24; after confirming complete adhesion, the buckles 6 are buckled, and the plastic clamp 3 is locked. The buckles 6 are of a conventional structure, and will not be described in detail here. Any structure that can adhere and fix the adhering surfaces 5 on both sides and does not affect the safety of the circuit breaker can be used as the buckle 6.

[0032] Referring to Fig. 2, the flange 26 further extends downward to form a sleeve structure 27 on the basis of completely covering the bottom surface of the pole 1, and the gap 4 also extends to the sleeve structure 27. The above design continues to increase the area range of the direct contact between the sleeve structure 2 and the pole 1, and can limit the upward movement trend of the sleeve structure 2 in windy weather. The fastener 6 is arranged on the abutting surface 5 near the sleeve structure 27 because a fastener 6 must be arranged here to enhance the stability of the overall structure and avoid the open condition leading to the damage of the sleeve structure 2 from here in extreme weather.

[0033] With reference to Fig. 1 The outer circumferential surface of the lower sleeve structure 25 is circumferentially buckled with a plurality of clamping blocks 7. The clamping blocks 7 are used to enhance the pressure between the lower sleeve structure 25 and the pole 1, thereby further enhancing the friction and further limiting the upward movement trend of the sleeve structure 2 in windy weather. The clamping blocks 7 should also be made of plastic material.

[0034] Of course, the above is only a typical example of the present application, in addition to which the present application can have other various specific implementation manners, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A sleeve structure for a pole-mounted circuit breaker, comprising a pole (1), characterized in that, It also includes a rubber sleeve structure (2), which is divided into upper and lower layers. The upper layer structure (21) is in the shape of a U-shaped sleeve and has a clearance hole (22) for passing through the wire on one side. A protruding ring (23) that fits the pole post (1) is provided inside the sleeve. The lower layer structure (25) is in the shape of a disc, and the edge of the disc is folded down to form a flange (26) for fitting onto the pole post (1).

2. The sleeve structure of a pole-mounted circuit breaker according to claim 1, characterized in that, The outer edge of the clearance hole (22) of the upper structure (21) of the rubber sleeve extends outward to form an annular cylinder (24); a plastic clamp (3) is provided on the outer circumferential surface of the end of the annular cylinder (24) away from the clearance hole (22), and the plastic clamp (3) is used to lock the port of the annular cylinder (24).

3. The sleeve structure of a pole-mounted circuit breaker according to claim 2, characterized in that, A notch (4) is provided at the bottom of the ring cylinder (24). The notch (4) starts from the bottom of the end of the ring cylinder (24) away from the pole post (1) and extends to the position of the flange (26) in the lower layer structure (25) of the rubber sleeve, realizing the complete separation of the rubber sleeve structure (2). There are bonding surfaces (5) extending outward on both sides of the notch (4). The bonding surfaces (5) on both sides are bonded to each other. Several fasteners (6) are also provided on the bonding surfaces (5) for fastening the bonding surfaces (5).

4. The sleeve structure of a pole-mounted circuit breaker according to claim 3, characterized in that, The flange (26) extends downwards to form a loop structure (27) on the basis of completely covering the bottom surface of the pole post (1), and the notch (4) also extends to the loop structure (27).

5. The sleeve structure of a pole-mounted circuit breaker according to claim 4, characterized in that, A fastener (6) is provided on the mating surface (5) near the collar structure (27).

6. The sleeve structure of a pole-mounted circuit breaker according to claim 5, characterized in that, The outer circumferential surface of the lower structure (25) of the rubber sleeve is circumferentially fastened with several locking blocks (7).

7. The sleeve structure of a pole-mounted circuit breaker according to claim 1, characterized in that, The entire rubber sleeve structure (2) is made of methyl vinyl silicone rubber.

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