Wire clamp protective cover for pole-mounted circuit breaker and protective piece thereof

Abstract

The wire clamp shield comprises a left wire clamp cover and a right wire clamp cover, one end of the left wire clamp cover and one end of the right wire clamp cover are connected through a hinge, the other end of the left wire clamp cover and the other end of the right wire clamp cover are connected through a buckle, and the left wire clamp cover and the right wire clamp cover are in butt joint to form a closed protection space. The front end of the protection space is provided with a front connecting port, the rear end of the protection space is provided with a base connecting port, and the protection space is further provided with a glue injection port. According to the utility model, through the arrangement of the sealing structure and the buckle, the sealing performance of connection between the left wire clamp cover and the right wire clamp cover can be doubly guaranteed, so that a closed container is provided for injection of insulating materials, the structure is simple, one-hand operation can be realized, the working efficiency is improved, the applicability is high, and waterproof and dustproof effects can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power, and particularly relates to a wire clamp shield and a protective piece thereof for a pole-mounted circuit breaker. Background Art

[0002] In the power industry, distribution network construction has always been a key link. It connects power generation, transmission and end users, and is an important link in achieving efficient operation of the power system.

[0003] The investment in distribution network is mainly concentrated on the insulation transformation of lines and the upgrading of distribution equipment. In order to ensure the actual effect of distribution network construction, insulation is required at important potential risk locations such as equipment connections. The joints of outdoor equipment such as pole-mounted circuit breakers and pole-mounted transformers in the distribution network are exposed and need to be protected. Currently, silicone rubber sheaths or insulating coating materials are used for wrapping.

[0004] However, the current approach has many shortcomings:

[0005] 1. The silicone rubber sheath currently used cannot be completely sealed. Not only is it not waterproof, but water may even accumulate inside the sheath, causing metal corrosion and loose fasteners, which directly leads to poor contact and secondary failures.

[0006] 2. The silicone rubber sheath is made of soft material and is fastened by buckles. Due to aging, wind and sun, the buckles are easy to loosen and even fall off completely under external forces, losing their protective function. Problems are not easy to be discovered, which seriously affects the safe and stable operation of the power grid. To ensure safe operation, it needs to be replaced every three years on average, which brings a lot of work and high maintenance costs.

[0007] 3. With the upgrading of equipment and new requirements for construction technology, there are many types of hardware and equipment terminals. The silicone rubber sheaths currently used often do not match the equipment model, hardware and equipment terminal angles, resulting in partial metal exposure, which does not play an insulating protection role and is easily corroded by wet flashover, dirty flashover, salt spray and chemical gas. Outdoor power distribution equipment is affected by its structure and environment, and birds are prone to nesting on it. Especially in rainy and snowy weather, it is easy to cause equipment discharge and phase short circuit, which may cause personal electric shock risks and grid tripping;

[0008] 4. The silicone rubber sheath and the metal cannot fit tightly together to form an air insulation layer. The thermal conductivity of air is about 0.0244W / m·K, and the thermal conductivity is poor. The temperature of the metal connection cannot be measured well on the outside.

[0009] 5. When using insulating coating materials for insulation, the quality of the coating is completely dependent on the construction personnel, the coating thickness cannot be determined and measured, and the coating material cannot be tightly bonded to the metal to prevent rainwater from entering. At the same time, the price of the coating material is high, which increases the cost without achieving a good effect. Utility Model Content

[0010] (I) Purpose of the utility model

[0011] In order to overcome the above shortcomings, the purpose of the utility model is to provide a wire clamp shield and a protective member for a pole-mounted circuit breaker to solve the above technical problems.

[0012] (II) Technical solution

[0013] To achieve the above objectives, the technical solutions provided by this application are as follows:

[0014] A wire clamp shield for a pole-mounted circuit breaker comprises a left wire clamp cover and a right wire clamp cover, wherein one end of the left wire clamp cover and the right wire clamp cover are connected by a hinge, and the other end of the left wire clamp cover and the right wire clamp cover are connected by a buckle, and the left wire clamp cover and the right wire clamp cover are butt-jointed to form a closed protective space, wherein a front connection port is provided at the front end of the protective space, a base connection port is provided at the rear end of the protective space, and a glue injection port is also provided in the protective space.

[0015] The hinge includes a hinge shaft, and left hinge connecting plates are provided at both ends of the hinge shaft. A right hinge rotating sleeve is rotatably provided on the hinge shaft, and the right hinge rotating sleeve always rotates on the hinge shaft. The left hinge connecting plate is connected to the left wire clamp cover, and the right hinge rotating sleeve is connected to the right wire clamp cover.

[0016] The hinge includes a hinge plate, two ends of which are respectively connected to a left wire clamp cover and a right wire clamp cover, a folding soft plate is provided at the center of the hinge plate, and two ends of the folding soft plate are folded along the center of the folding soft plate as the left wire clamp cover and the right wire clamp cover are connected.

[0017] The buckle includes a clamping plate arranged on the left wire clamp cover, and a plurality of clamping grooves are evenly arranged on the clamping plate. An elastic clamping block corresponding to the clamping groove is arranged on the right wire clamp cover. When the left wire clamp cover and the right wire clamp cover are docked, the elastic clamping block is arranged in the clamping groove.

[0018] A sealing structure is also provided between the left wire clamp cover and the right wire clamp cover. The sealing structure comprises a sealing groove and a sealing guide plate arranged in the sealing groove. The sealing groove and the sealing guide plate are respectively arranged on the left wire clamp cover and the right wire clamp cover.

[0019] The left wire clamp cover and the right wire clamp cover are symmetrically arranged about the hinge axis, and the left wire clamp cover and the right wire clamp cover are both wire clamp cover structures, and the wire clamp cover structure includes a cover plate and a cover side plate arranged around the cover plate, the cover side plate is provided with a base connecting groove at the base connecting port, the base connecting groove of the cover side plate is provided with a sealing sponge, the cover side plate is provided with a front connecting groove at the front connecting port, and the cover side plate is provided with a glue injection groove at the glue injection port.

[0020] The left wire clamp cover and the right wire clamp cover are both made of hard insulating material, and the left wire clamp cover and the right wire clamp cover are both integrally formed structures.

[0021] A protective component for a pole-mounted circuit breaker comprises a wire clamp protective cover for the pole-mounted circuit breaker.

[0022] Beneficial effects:

[0023] 1. Cover the equipment wiring in place. Traditional protective measures only wrap a layer of silicone rubber sheath at the equipment wiring. The shape of the sheath itself is not fixed, and it cannot guarantee that the internal conductor is completely covered during installation, which may cause the conductor to be exposed. The left and right wire clamp covers of the utility model are made of hard insulating materials. The design process refers to the shape of the equipment wiring. After installation, the conductor at the equipment wiring can be completely covered, and there is no problem of inadequate covering.

[0024] 2. Sufficient insulation distance can be ensured. Due to its material problem, the traditional silicone rubber sheath is soft, and there may be insufficient gap between the sheath and the internal conductor. The left and right wire clamp covers of the utility model are made of hard materials, and the shape is designed with reference to the shape of the wiring point, ensuring that there is a sufficient safety distance between the internal and the conductor.

[0025] 3. Easy installation. Traditional silicone rubber sheaths are soft in material and have an irregular shape. They need to be installed with both hands. The buckles are installed one by one, which takes a long time and is difficult to install. The utility model has a simple installation process and comes with buckles. The installation process can be completed with one hand and can be installed in place in one go.

[0026] 4. Cost reduction. The utility model provides a container for injecting insulating materials to ensure that the conductors at the equipment connection points are properly covered. After the insulating materials are completely solidified, the protective performance can be guaranteed for 10 years. Compared with the traditional protective measures that are replaced every 2-3 years, the cost is greatly reduced.

[0027] 5. Adaptable to a variety of hardware. Traditional silicone rubber sheaths are only suitable for one type of hardware, but the utility model can be applied to a variety of hardware, which is more applicable and easier for construction workers to operate.

[0028] 8. Inventory preparation is simple and efficient. The utility model can replace the knife switch side shield suitable for ZW20 and ZW32 column breakers, and can solve the problem caused by too many types of silicone rubber sheaths and the inability to use different types of silicone rubber sheaths universally. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the utility model;

[0030] Figure 2 It is an enlarged structural diagram of location A according to an implementation mode of the utility model;

[0031] Figure 3 It is an installation structure diagram according to an implementation mode of the utility model. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the following is a detailed description of the present invention in conjunction with the specific implementation methods and with reference to the attached drawings. Figure 1-3 , the utility model is further described in detail. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0033] The utility model provides a wire clamp shield for a pole-mounted circuit breaker, comprising a left wire clamp cover 100 and a right wire clamp cover 200 , wherein one end of the left wire clamp cover 100 and the right wire clamp cover 200 are connected via a hinge 13 .

[0034] One structure of the hinge is: the hinge 13 includes a hinge shaft, and the two ends of the hinge shaft are provided with a left hinge connecting plate 6, and the hinge shaft is rotatably provided with a right hinge rotating sleeve 5, and the right hinge rotating sleeve 5 always rotates on the hinge shaft, and the left hinge connecting plate 6 is connected to the left wire clamp cover 100, and the right hinge rotating sleeve 5 is connected to the right wire clamp cover 200. The left hinge connecting plate 6 and the hinge shaft rotate relative to the right hinge rotating sleeve 5, so that the left wire clamp cover 100 and the right wire clamp cover 200 can rotate, so that the pole-mounted circuit breaker is placed in the protective space.

[0035] Another structure of the hinge is: the hinge includes a hinge plate, the two ends of the hinge plate are respectively connected to the left wire clamp cover 100 and the right wire clamp cover 200, and a folding soft plate is provided at the center of the hinge plate, and the two ends of the folding soft plate are folded along the center of the folding soft plate as the left wire clamp cover 100 and the right wire clamp cover 200 are connected. The relative rotation of the left wire clamp cover 100 and the right wire clamp cover 200 is realized, and the alignment connection of the sealing structure and the buckle is facilitated, thereby improving the accuracy of installation.

[0036] The other ends of the left wire clamp cover 100 and the right wire clamp cover 200 are connected by a snap buckle, and the snap buckle includes a snap plate 3 arranged on the left wire clamp cover 100, and a plurality of snap grooves 4 are evenly arranged on the snap plate 3. The right wire clamp cover 200 is provided with an elastic snap block 1 corresponding to the snap groove 4. When the left wire clamp cover 100 and the right wire clamp cover 200 are docked, the elastic snap block 1 is arranged in the snap groove 4, so that a tight connection is achieved between the left wire clamp cover 100 and the right wire clamp cover 200, and the structure is simple and easy to operate, which can be completed with one hand, thereby improving work efficiency.

[0037] The left wire clamp cover 100 and the right wire clamp cover 200 are connected to form a closed protective space. A sealing structure is also provided between the left wire clamp cover 100 and the right wire clamp cover 200. The sealing structure includes a sealing groove 11 and a sealing guide plate 10 provided in the sealing groove 11. The sealing groove 11 and the sealing guide plate 10 are respectively provided on the left wire clamp cover 100 and the right wire clamp cover 200. By providing the sealing groove 11 and the sealing guide plate 10, the sealing property of the protective space can be improved, and the waterproof and dustproof effect is further achieved, thereby extending the service life.

[0038] A front connection port 12 is provided at the front end of the protective space, and the front connection port 12 is convenient for the extension of the connecting parts. A base connection port 15 is provided at the rear end of the protective space, and the base connection port 15 is convenient for the extension of the base. The protective space is also provided with a glue injection port 14. There are two glue injection ports, and the two different glue injection ports can be suitable for the glue injection joint styles of different equipment. The insulating material is injected into the protective space through the glue injection port 14.

[0039] The left wire clamp cover 100 and the right wire clamp cover 200 are symmetrically arranged about the hinge axis. The left wire clamp cover 100 and the right wire clamp cover 200 are both wire clamp cover structures. The wire clamp cover structure includes a cover plate 17 and a cover side plate 16 arranged around the cover plate 17. The cover side plate 16 is provided with a base connecting groove 8 at the base connecting port. The base connecting groove of the cover side plate 16 is provided with a sealing sponge 9. The setting of the sealing sponge 9 can achieve a tight connection between the cover side plate and the circuit breaker base to prevent the insulating material from flowing out from the base connecting port after being injected.

[0040] The cover side plate 16 is provided with a front connection groove 2 at the front connection port 12, and a glue injection groove 14 is provided at the glue injection port on the cover side plate 16. With the docking of the left wire clamp cover 100 and the right wire clamp cover 200, the two front connection grooves 2 are combined into the front connection port 12, the two glue injection grooves are combined into the glue injection port 14, and the two base connection grooves 8 are docked to form the base connection port 15.

[0041] The left wire clamp cover 100 and the right wire clamp cover 200 are both integrally formed structures, which improves the sealing performance of the left wire clamp cover 100 and the right wire clamp cover 200.

[0042] The left wire clamp cover 100 and the right wire clamp cover 200 are both made of hard insulating materials, which improves the wear resistance of the left wire clamp cover 100 and the right wire clamp cover 200 and achieves a comprehensive wrapping effect.

[0043] The utility model also relates to a protective piece for a pole-mounted circuit breaker, comprising the wire clamp protective cover for the pole-mounted circuit breaker.

[0044] When the utility model is in use, the left wire clamp cover and the right wire clamp cover are aligned with the relative positions of the circuit breaker, the left wire clamp cover and the right wire clamp cover are butted and sealed closed through the sealing structure and the buckle, and after the installation is completed, multi-angle adaptive adjustment is achieved, and then the insulating material is poured after the angle is confirmed to achieve sealing.

[0045] The utility model can doubly ensure the sealing of the connection between the left wire clamp cover and the right wire clamp cover through the setting of the sealing structure and the buckle, thereby providing a closed container for the injection of insulating material. The utility model has a simple structure and can be operated with one hand, thereby improving work efficiency. At the same time, it has strong applicability and can achieve waterproof and dustproof effects.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wire clamp cover for a pole-mounted circuit breaker, characterized in that: It includes a left wire clamp cover and a right wire clamp cover, one end of the left wire clamp cover and the right wire clamp cover are connected by a hinge, and the other end of the left wire clamp cover and the right wire clamp cover are connected by a buckle. The left wire clamp cover and the right wire clamp cover are connected to form an enclosed protective space, the front end of the protective space is provided with a front connecting port, the rear end of the protective space is provided with a base connecting port, and the protective space is also provided with a glue injection port.

2. The wire clamp shield for a pole mounted circuit breaker according to claim 1, characterized in that: The hinge includes a hinge shaft, and left hinge connecting plates are provided at both ends of the hinge shaft. A right hinge rotating sleeve is rotatably provided on the hinge shaft, and the right hinge rotating sleeve always rotates on the hinge shaft. The left hinge connecting plate is connected to the left wire clamp cover, and the right hinge rotating sleeve is connected to the right wire clamp cover.

3. The wire clamp shield for a pole mounted circuit breaker according to claim 1, characterized in that: The hinge includes a hinge plate, two ends of which are respectively connected to a left wire clamp cover and a right wire clamp cover, a folding soft plate is provided at the center of the hinge plate, and two ends of the folding soft plate are folded along the center of the folding soft plate as the left wire clamp cover and the right wire clamp cover are connected.

4. The wire clamp shield for a pole mounted circuit breaker according to claim 1, characterized in that: The buckle includes a clamping plate arranged on the left wire clamp cover, and a plurality of clamping grooves are evenly arranged on the clamping plate. An elastic clamping block corresponding to the clamping groove is arranged on the right wire clamp cover. When the left wire clamp cover and the right wire clamp cover are docked, the elastic clamping block is arranged in the clamping groove.

5. The wire clamp shield for a pole mounted circuit breaker according to claim 1, characterized in that: A sealing structure is also provided between the left wire clamp cover and the right wire clamp cover. The sealing structure comprises a sealing groove and a sealing guide plate arranged in the sealing groove. The sealing groove and the sealing guide plate are respectively arranged on the left wire clamp cover and the right wire clamp cover.

6. The wire clamp shield for a pole mounted circuit breaker according to claim 1, characterized in that: The left wire clamp cover and the right wire clamp cover are symmetrically arranged about the hinge axis, and the left wire clamp cover and the right wire clamp cover are both wire clamp cover structures, and the wire clamp cover structure includes a cover plate and a cover side plate arranged around the cover plate, the cover side plate is provided with a base connecting groove at the base connecting port, the base connecting groove of the cover side plate is provided with a sealing sponge, the cover side plate is provided with a front connecting groove at the front connecting port, and the cover side plate is provided with a glue injection groove at the glue injection port.

7. The wire clamp shield for a pole mounted circuit breaker according to claim 1, characterized in that: The left wire clamp cover and the right wire clamp cover are both made of hard insulating material, and the left wire clamp cover and the right wire clamp cover are both integrally formed structures.

8. A protective element for a pole mounted circuit breaker, characterized in that: It comprises a wire clamp shield for a pole-mounted circuit breaker according to any one of claims 1 to 7.

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