ZW32 type circuit breaker multi-angle self-adaptive insulation protection base and protection piece thereof

Abstract

The utility model relates to a ZW32 type breaker multi-angle adaptive insulation protection pedestal and a protection member thereof, the pedestal comprises a pedestal main body, the pedestal main body comprises a first sealing cover, a second sealing cover and an articulation member, the first sealing cover and the second sealing cover are rotatably connected together through the articulation member, and the first sealing cover and the second sealing cover are fixed on the pedestal main body. The first sealing cover and the second sealing cover are butted to form a sealed space; a bottom mounting hole communicated with the sealed space is formed in the bottom of the base main body, and a side mounting hole communicated with the sealed space is formed in the side part of the base main body; the first sealing cover and the second sealing cover are hard sealing covers. The advantages of the utility model are that compared with the prior art that only one layer of sheath made of silicone rubber material is wrapped at the wiring position of equipment, the shape of the sheath is not fixed, the internal conductor cannot be completely wrapped in the installation process, and the risk of conductor exposure exists. According to the utility model, the hard insulating material is adopted, the conductor at the equipment wiring position can be completely coated after installation according to the shape of the equipment wiring position, and the situation that the coating is not in place does not exist.

Description

Technical Field

[0001] The utility model relates to a multi-angle adaptive insulating protection base and a protection piece of a ZW32 type circuit breaker, belonging to the field of electric power. Background Art

[0002] In the power industry, the construction of distribution networks 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. With the acceleration of global energy transformation, especially the rapid development of renewable energy and energy storage, the construction of distribution networks has become the focus of the power grid.

[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, the state and the industry have relevant clear standards for the insulation of important hidden dangers such as equipment connections. Among them, Article 11.2.1 of GB 51302-2018 "Design Standard for Overhead Insulated Distribution Lines" stipulates that "the connection between equipment, hardware and insulated wires should be insulated, and measures such as insulation shields or insulation wrapping can be adopted. The insulation shield should be made of heat shrinkable or prefabricated insulation materials, and the wrapping material should be self-adhesive"; Article 11.2.2 stipulates that "the insulation shield and wrapping materials should prevent dirt accumulation and water ingress, and should meet flame retardant requirements." "DL / T602-1996 Overhead Insulated Distribution Line Construction and Acceptance Procedures" clearly requires that "the exposed part of the joint must be insulated and a special insulation shield must be installed."

[0004] The connectors 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, they are wrapped with silicone rubber sheaths or insulating coating materials.

[0005] However, the current approach has many shortcomings:

[0006] 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.

[0007] 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.

[0008] 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;

[0009] 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.

[0010] 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.

[0011] Distribution network equipment is the focus of power grid investment. The large amount of investment and the large number of equipment make the corresponding safety hazards more prominent. Among them, pole-mounted circuit breakers, link switches, transformers and other equipment and wire connections are often caused by power accidents due to weather reasons, small animals, bird nesting, external force damage, etc., and the insulation problem of the last 10cm is becoming increasingly prominent. With the advancement of primary and secondary integration, one terminal needs to connect multiple wires such as PT, and the problem is more prominent. The insulation of outdoor distribution network equipment urgently needs innovation to solve the problem of insulation of the last 10cm. Therefore, it is of great significance to study the integrated insulation solution of equipment terminals, hardware, and cables. Utility Model Content

[0012] In order to overcome the defects of the prior art, the utility model provides a ZW32 type circuit breaker multi-angle adaptive insulation protection base. The technical solution of the utility model is:

[0013] A multi-angle adaptive insulating protective base for a ZW32 type circuit breaker comprises a base body, wherein the base body comprises a first sealing cover, a second sealing cover and a hinge, wherein the first sealing cover and the second sealing cover are rotatably connected together by the hinge, and a sealed space is formed after the first sealing cover and the second sealing cover are butt-jointed; a bottom mounting hole communicating with the sealed space is arranged at the bottom of the base body, and a side mounting hole communicating with the sealed space is arranged at the side of the base body; the first sealing cover and the second sealing cover are hard sealing covers.

[0014] The first sealing cover comprises a first sealing bottom plate and a first sealing side plate arranged along the periphery of the first sealing bottom plate, wherein the first sealing side plate is integrally formed with the first sealing bottom plate; a docking groove is arranged at the docking surface of each first sealing side plate.

[0015] The second sealing cover includes a second sealing bottom plate and a second sealing side plate arranged along the periphery of the second sealing bottom plate, and the second sealing side plate is integrally formed with the second sealing bottom plate; a docking ridge corresponding to the docking groove of the first sealing side plate is arranged at the docking surface of each second sealing side plate, and when the second sealing side plate is docked with the first sealing side plate, the docking ridge is placed in the docking groove.

[0016] A buckle positioning plate is arranged on the first sealing side plate, and an elastic buckle which movably cooperates with the buckle positioning plate is installed on the second sealing side plate. When the second sealing side plate is butt-jointed with the first sealing side plate, the elastic buckle is clamped on the buckle positioning plate.

[0017] A rubber band is also connected to the first sealing side plate and the second sealing side plate. One end of the rubber band is connected to the first sealing side plate or the second sealing side plate, and the other end is provided with a hook.

[0018] The hinged part includes an articulated shaft and a rotating sleeve, wherein the rotating sleeve is installed on the periphery of the articulated shaft and rotates with the articulated shaft; a first connecting plate connected to a first sealing side plate is arranged at both ends of the articulated shaft, and a second connecting plate connected to a second sealing side plate is arranged on the rotating sleeve.

[0019] Sealing sponge pads are installed on the first sealing side plate and the second sealing side plate close to the bottom mounting hole.

[0020] Arc-shaped guiding ridges which are rotatably matched with the insulating shield are arranged outside the first sealing bottom plate and the second sealing bottom plate.

[0021] A ZW32 type circuit breaker protective piece comprises the ZW32 type circuit breaker multi-angle adaptive insulating protective base.

[0022] The advantages of the utility model are:

[0023] 1. Compared with the sheath that only wraps a layer of silicone rubber material at the equipment connection point, the shape of the sheath itself is not fixed, and it cannot guarantee that the internal conductor is completely covered during the installation process, and there is a risk of conductor exposure. The utility model adopts hard insulating material and refers to the shape of the equipment connection point. After installation, it can completely cover the conductor at the equipment connection point, and there is no situation where the covering is not in place.

[0024] 2. The existing silicone rubber sheath is soft due to its material problem, and there may be insufficient clearance between the sheath and the internal conductor. The utility model adopts hard material and its shape is designed according to the shape of the wiring part to ensure that there is enough 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, ensuring that the conductors at the equipment connection points are properly covered, greatly reducing costs.

[0027] 5. By setting the arc-shaped guide ridges, it can adapt to a variety of wiring forms and equipment types. Compared with the traditional sheath that can only be applied to one angle, it has a wider range of applications, is more convenient for on-site construction workers to operate, and has lower construction difficulty.

[0028] 6. 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.

[0029] 7. Convenient and efficient selection. The hardware and wiring forms of existing power distribution equipment are generally covered by traditional sheaths, and it is impossible to distinguish the type of hardware and other information from the appearance. The utility model has a multi-angle adaptive compatible structure and can adapt to a variety of hardware features. There is no need to confirm the relevant information of the equipment, and it can be directly selected, which provides convenience for selection.

[0030] 8. Inventory preparation is simple and efficient. The utility model can replace various types of silicone rubber sheaths suitable for ZW32 type circuit breakers, and can solve the problem caused by too many types of sheaths and the inability to use different types of sheaths universally. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0032] Figure 2 It is a usage state diagram of the utility model.

[0033] Figure 3 It is an assembly schematic diagram of the butt joint ridge and butt joint groove of the utility model.

[0034] Figure 4 It is a schematic diagram of assembling the buckle positioning plate and the elastic buckle of the utility model.

[0035] Figure 5 It is a structural schematic diagram of the hinged part of the utility model. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with specific embodiments, and the advantages and features of the present invention will become clearer as the description proceeds. However, these embodiments are merely exemplary and do not constitute any limitation to the scope of the present invention. It should be understood by those skilled in the art that the details and forms of the technical solution of the present invention may be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements fall within the scope of protection of the present invention.

[0037] See also Figures 1 to 5 The utility model relates to a ZW32 type circuit breaker multi-angle adaptive insulation protection base, comprising a base body, the base body comprising a first sealing cover, a second sealing cover and a hinge 10, the first sealing cover and the second sealing cover are rotatably connected together through the hinge 10, and the first sealing cover and the second sealing cover are connected to form a sealed space; a bottom mounting hole (such as a bottom mounting hole) communicating with the sealed space is provided at the bottom of the base body Figure 1 and Figure 2 , formed by docking the arc-shaped bottom mounting hole at the lower part of the first sealing cover and the second sealing cover), the side of the base body is provided with a side mounting hole (such as Figure 1 and Figure 2 , formed by docking the arc-shaped bottom mounting holes on the sides of the first sealing cover and the second sealing cover); the first sealing cover and the second sealing cover are hard sealing covers.

[0038] A bottom mounting hole is provided at the bottom of the base body, and a side mounting hole is provided at the side. During assembly, the insulator is placed into the sealed space of the base body through the bottom mounting hole, and the side mounting hole is used to allow the copper nose to pass through, thereby realizing installation on the circuit breaker and improving the flexibility and convenience of installation.

[0039] The sealed space formed by the jointing of the first sealing cover and the second sealing cover can provide effective insulation protection and has good safety and reliability.

[0040] The first sealing cover and the second sealing cover are hard sealing covers, which have good wear resistance and corrosion resistance and can extend the service life of the product.

[0041] The base body has a simple structure, is easy to operate, install and maintain, and can effectively improve use efficiency and control use costs.

[0042] The first sealing cover comprises a first sealing bottom plate 1 and a first sealing side plate 2 arranged along the periphery of the first sealing bottom plate 1 , wherein the first sealing side plate 2 is integrally formed with the first sealing bottom plate 1 ; a docking groove 4 is arranged at the docking surface of each first sealing side plate 2 .

[0043] The second sealing cover includes a second sealing bottom plate 7 and a second sealing side plate 8 arranged along the periphery of the second sealing bottom plate 7, and the second sealing side plate 8 is integrally formed with the second sealing bottom plate 7; a docking ridge 9 corresponding to the docking groove 4 of the first sealing side plate 2 is arranged at the docking surface of each second sealing side plate 8, and when the second sealing side plate 8 is docked with the first sealing side plate 2, the docking ridge 9 is placed in the docking groove.

[0044] The first sealing cover and the second sealing cover are assembled by means of the butt ridges and the butt grooves, which can effectively utilize the rigidity and sealing performance of the sealing cover itself and improve the sealing effect.

[0045] The design of the docking ridges and the docking grooves makes the structure simpler and more reliable. The first sealing side plate and the second sealing side plate are both integrally formed and can be formed by injection molding and other processes. The production process is simple, the processing precision is high, the production efficiency is high, and the cost is low.

[0046] A snap-on positioning plate 11 is provided on the first sealing side plate 2, and an elastic snap 12 which movably cooperates with the snap-on positioning plate 11 is installed on the second sealing side plate 8. When the second sealing side plate 8 is butt-jointed with the first sealing side plate 2, the elastic snap 12 is clamped on the snap-on positioning plate 11.

[0047] By arranging the snap-fit ​​positioning plate 11 on the first sealing side plate 2 and then arranging the elastic snap-fit ​​12 on the second sealing side plate 8, positioning and snap-fit ​​fixed connection can be achieved, thereby improving the stability and reliability between the sealing covers.

[0048] The elastic buckle structure can be easily and quickly installed and disassembled, improving the efficiency of installation and maintenance. The buckle positioning design can accurately align and clamp tightly, thereby improving the sealing effect; through stable buckle connection and tight gap, it can provide better insulation and protection effects in atmospheric pollution, poor environment and other conditions, extending the service life of the product.

[0049] A rubber band 5 is also connected to the first sealing side plate 2 and the second sealing side plate 8, one end of which is connected to the first sealing side plate or the second sealing side plate, and the other end is provided with a hook 6. When in use, the rubber band 5 is stretched so that the hook 6 is hung on the edge of the bottom transformer shed, the rubber bands 5 on both sides are naturally tightened, and the sealing sponge pad 3 at the bottom is compressed at the same time, the base is pressed against the equipment installation surface, the base and the equipment are sealed, and the base is installed as a whole in place.

[0050] The hinged member includes a hinge shaft 13 and a rotating sleeve 14. The rotating sleeve 14 is mounted on the periphery of the hinge shaft 13 and is rotatably matched with the hinge shaft 13. A first connecting plate 15 connected to the first sealing side plate 1 is provided at both ends of the hinge shaft 13, and a second connecting plate connected to the second sealing side plate 8 is provided on the rotating sleeve 14. The design of the hinge shaft 13 and the rotating sleeve 14 enables flexible rotation of the sealing cover, which is conducive to rapid inspection and maintenance and replacement.

[0051] Sealing sponge pads 3 are installed on the first sealing side plate 2 and the second sealing side plate 8 close to the bottom mounting hole, so as to play a sealing role when docking with the insulator.

[0052] The first sealing bottom plate 1 and the second sealing bottom plate 7 are provided with arc-shaped guide ridges 9 for rotationally cooperating with the insulating shield. Figure 2 As shown in the figure), multi-angle compatibility and adaptability of the insulating cover are realized.

[0053] The utility model also relates to a ZW32 type circuit breaker protection piece, comprising the ZW32 type circuit breaker multi-angle adaptive insulation protection base.

[0054] The working principle of the utility model is:

[0055] When in use, the first sealing cover and the second sealing cover are placed in an open and closed state, and then the first sealing cover and the second sealing cover are installed on the outside of the ZW32 circuit breaker, and then the first sealing cover and the second sealing cover are closed, so that the first sealing cover and the second sealing cover are placed in a docking state. After the first sealing cover and the second sealing cover are docked, an enclosed sealed space is formed, thereby providing effective insulation protection for the ZW32 circuit breaker.

[0056] The base body formed by the first sealing cover and the second sealing cover is placed on the ZW32 type circuit breaker, and the ZW32 type circuit breaker places the electrical insulator of the ZW32 type circuit breaker into the sealed space through the bottom mounting hole to achieve a fixing effect.

[0057] The elastic buckle structure between the first sealing cover and the second sealing cover is utilized to improve the stability and reliability of the seal.

[0058] Determine the installation direction: Through the rotation cooperation of the guide ridges at the bottom and the insulating shield, the protection of copper noses at different angles is achieved. After fixing the angles of the insulating shield and the base body, glue is poured into the insulating shield and the base body to achieve sealing.

[0059] Finally, by stretching the rubber band, the hook is hung on the edge of the umbrella skirt of the ZW32 circuit breaker, the rubber bands on both sides are naturally tightened, and the sealing sponge pad at the bottom is compressed, so that the utility model is pressed tightly on the installation surface of the ZW32 circuit breaker, thereby achieving a close fit between the utility model and the ZW32 circuit breaker.

[0060] In summary, the multi-angle adaptive insulating protective base of the utility model can achieve the advantages of quick installation, reliable sealing and multi-angle adaptability through the mutual cooperation of components such as the sealing cover, the hinge, the base body and the rubber band, thereby improving the service life and safety of the circuit breaker and being suitable for various application occasions of the ZW32 circuit breaker.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ZW32 type circuit breaker multi-angle adaptive insulation protection base, including a base body, characterized in that: The base body includes a first sealing cover, a second sealing cover and a hinge. The first sealing cover and the second sealing cover are rotatably connected together by the hinge. The first sealing cover and the second sealing cover are connected to form a sealed space. A bottom mounting hole connected to the sealed space is provided at the bottom of the base body, and a side mounting hole connected to the sealed space is provided at the side of the base body. The first sealing cover and the second sealing cover are hard sealing covers.

2. The ZW32 type circuit breaker multi-angle adaptive insulation protection base according to claim 1 is characterized in that: The first sealing cover comprises a first sealing bottom plate and a first sealing side plate arranged along the periphery of the first sealing bottom plate, wherein the first sealing side plate is integrally formed with the first sealing bottom plate; a docking groove is arranged at the docking surface of each first sealing side plate.

3. The ZW32 type circuit breaker multi-angle adaptive insulation protection base according to claim 2 is characterized in that: The second sealing cover includes a second sealing bottom plate and a second sealing side plate arranged along the periphery of the second sealing bottom plate, and the second sealing side plate is integrally formed with the second sealing bottom plate; a docking ridge corresponding to the docking groove of the first sealing side plate is arranged at the docking surface of each second sealing side plate, and when the second sealing side plate is docked with the first sealing side plate, the docking ridge is placed in the docking groove.

4. The multi-angle adaptive insulation protection base for ZW32 type circuit breaker according to claim 3 is characterized in that: A buckle positioning plate is arranged on the first sealing side plate, and an elastic buckle which movably cooperates with the buckle positioning plate is installed on the second sealing side plate. When the second sealing side plate is butt-jointed with the first sealing side plate, the elastic buckle is clamped on the buckle positioning plate.

5. The ZW32 type circuit breaker multi-angle adaptive insulation protection base according to claim 3 or 4, characterized in that: A rubber band is also connected to the first sealing side plate and the second sealing side plate. One end of the rubber band is connected to the first sealing side plate or the second sealing side plate, and the other end is provided with a hook.

6. The ZW32 type circuit breaker multi-angle adaptive insulation protection base according to claim 5 is characterized in that: The hinged part includes an articulated shaft and a rotating sleeve, wherein the rotating sleeve is installed on the periphery of the articulated shaft and rotates with the articulated shaft; a first connecting plate connected to a first sealing side plate is arranged at both ends of the articulated shaft, and a second connecting plate connected to a second sealing side plate is arranged on the rotating sleeve.

7. The ZW32 type circuit breaker multi-angle adaptive insulation protection base according to claim 6 is characterized in that: Sealing sponge pads are installed on the first sealing side plate and the second sealing side plate close to the bottom mounting hole.

8. The ZW32 type circuit breaker multi-angle adaptive insulation protection base according to claim 7 is characterized in that: Arc-shaped guiding ridges which are rotatably matched with the insulating shield are arranged outside the first sealing bottom plate and the second sealing bottom plate.

9. A ZW32 type circuit breaker protective member, characterized in that: It comprises the ZW32 type circuit breaker multi-angle adaptive insulation protection base as described in any one of claims 1 to 8.

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