Self-adaptive insulating shield base of ZW20 type circuit breaker and protection piece of self-adaptive insulating shield base

Abstract

The utility model relates to a ZW20 type breaker adaptive insulation shield pedestal comprising a first connecting shell and a second connecting shell, the first connecting shell and the second connecting shell are oppositely arranged, one end of the first connecting shell and one end of the second connecting shell are installed through a rotation connecting piece, and the other end of the first connecting shell and one end of the second connecting shell are installed through a rotation connecting piece. The other end of the first connecting shell and the other end of the second connecting shell are connected in a separable and combined mode through a locking piece, when the first connecting shell and the second connecting shell are connected in a folded mode through the locking piece, an insulation space is formed, the front end of the insulation space is a connecting cavity for containing a bolt type equipment wire clamp, and the rear end of the insulation space is provided with a base sealing cavity. Through the arrangement of the first connecting shell, the second connecting shell, the rotary connecting piece, the locking piece and the sealing connecting unit, insulation protection of equipment can be realized, meanwhile, the equipment can be quickly assembled and disassembled, the service life of the equipment is prolonged, and the safety of the equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power, and particularly relates to a ZW20 type circuit breaker adaptive insulating shield base and a protective piece thereof. 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.

[0010] 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

[0011] (I) Purpose of the utility model

[0012] In order to overcome the above shortcomings, the purpose of the utility model is to provide a ZW20 type circuit breaker adaptive insulation shield base and protective parts thereof to solve the above technical problems.

[0013] (II) Technical solution

[0014] To achieve the above objectives, the technical solutions provided by this application are as follows:

[0015] A ZW20 type circuit breaker adaptive insulating shield base comprises a first connecting shell and a second connecting shell, wherein the first connecting shell and the second connecting shell are arranged opposite to each other, one end of the first connecting shell and the second connecting shell are installed by a rotating connecting piece, and the other end of the first connecting shell and the second connecting shell are connected in a separable manner by a locking piece, and an insulating space is formed when the first connecting shell and the second connecting shell are closed and connected by the locking piece, the front end of the insulating space is a connecting cavity for accommodating a bolt-type equipment wire clamp, and the rear end of the insulating space is provided with a base sealing cavity.

[0016] Preferably, the front end of the first connecting shell is connected to the first protective shell, and the front end of the second connecting shell is connected to the second protective shell. When the first protective shell and the second protective shell are connected, they form a protective cavity, and the protective cavity is connected to the connecting cavity.

[0017] Preferably, the first connecting shell and the second connecting shell are both hard shells.

[0018] Preferably, the first connecting shell includes a first connecting arc plate and a first connecting plate arranged at the front end of the first connecting arc plate, and the first connecting arc plate and the first connecting plate are integrally formed.

[0019] Preferably, the second connecting shell includes a second connecting arc plate and a second connecting plate arranged at the front end of the second connecting arc plate, and the second connecting arc plate and the second connecting plate are integrally formed.

[0020] Preferably, a sealing connection unit is provided at one end of the first connection shell and the second connection shell for separation and connection via a locking member, and the sealing connection unit comprises at least one sealing protrusion and a sealing groove corresponding to the sealing protrusion.

[0021] Preferably, the rotating connecting member includes a rotating shaft, a first rotating sleeve is rotatably provided at the center of the rotating shaft, the first rotating sleeve is connected to the first connecting arc plate of the first connecting shell through the first rotating plate, and second rotating sleeves installed on the rotating shaft are provided at both ends of the first rotating sleeve, the two second rotating sleeves are fixedly connected to the second rotating plate, and the second rotating plate is connected to the second arc plate of the second connecting shell.

[0022] Preferably, the locking member includes a locking seat and an elastic locking buckle cooperating with the locking seat, and the locking seat and the elastic locking buckle are respectively arranged on the first connecting shell and the second connecting shell. When the first connecting shell and the second connecting shell are closed, the elastic locking buckle is clamped on the locking seat.

[0023] Preferably, the rear ends of the first connecting arc plate and the second connecting arc plate are both provided with sealing sponge pads.

[0024] A ZW20 type circuit breaker protective piece comprises a ZW20 type circuit breaker adaptive insulating shield base.

[0025] Beneficial effects:

[0026] 1. The wiring of the equipment is properly covered. Traditional protective measures only wrap a layer of silicone rubber sheath at the wiring of the equipment. 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 first connection shell and the second connection shell of the utility model are made of insulating materials. The design process refers to the shape of the wiring of the equipment. After installation, the conductor of the wiring of the equipment can be completely covered, and there is no situation where the covering is not in place.

[0027] 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 utility model adopts a hard shell, and the shape is designed with reference to the shape of the wiring point to ensure that there is a sufficient safety distance between the internal and the conductor.

[0028] 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.

[0029] 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.

[0030] 5. The utility model has a multi-angle adaptive compatible structure, which can adapt to various 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 personnel to operate, and has lower construction difficulty.

[0031] 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.

[0032] 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.

[0033] 8. Stock preparation is simple and efficient. The utility model can replace various types of silicone rubber sheaths suitable for ZW20 column sections, 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

[0034] Figure 1 It is a structural schematic diagram of the utility model;

[0035] Figure 2 This is an installation structure diagram according to an embodiment of the utility model;

[0036] Figure 3 This is an opening structure diagram according to an embodiment of the utility model;

[0037] Figure 4 This is an installation structure diagram according to an embodiment of the utility model;

[0038] Figure 5 This is a structural diagram of a sealed connection unit according to an embodiment of the utility model;

[0039] Figure 6 It is a structural diagram of a rotating connection member according to an embodiment of the utility model. DETAILED DESCRIPTION

[0040] 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 1-6 , 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.

[0041] The utility model provides a ZW20 type circuit breaker adaptive insulating shield base, including a first connecting shell 100 and a second connecting shell 200. The first connecting shell 100 and the second connecting shell 200 are both hard shells, so that the first connecting shell 100 and the second connecting shell 200 have good wear resistance and corrosion resistance, extending the service life of the product, and at the same time can better protect the circuit breaker.

[0042] The first connection shell 100 and the second connection shell 200 are arranged opposite to each other, and one end of the first connection shell 100 and the second connection shell 200 are installed through a rotating connection member 14, and the rotating connection member 14 includes a rotating shaft 23, and a first rotating sleeve 22 is provided at the center of the rotating shaft 23, and the first rotating sleeve 22 is connected to the first connecting arc plate 3 of the first connection shell 100 through the first rotating plate 4, and the two ends of the first rotating sleeve 22 are respectively provided with a second rotating sleeve 24 installed on the rotating shaft 23, and the two second rotating sleeves 24 are fixedly connected to the second rotating plate 5, and the second rotating plate 5 is connected to the second arc plate 6 of the second connection shell 200. The setting of the rotating connection 14 facilitates the flexible rotation between the first connection shell and the second connection shell, so that the disassembly and installation can be realized quickly, and the work efficiency is improved.

[0043] The other ends of the first connecting shell 100 and the second connecting shell 200 are connected in a separable manner through a locking member, and the locking member includes a locking seat 7 and an elastic locking buckle 1 that cooperates with the locking seat 7. The locking seat 7 and the elastic locking buckle 1 are respectively arranged on the first connecting shell 100 and the second connecting shell 200. When the first connecting shell 100 and the second connecting shell 200 are closed, the elastic locking buckle 1 is clamped on the locking seat 7, thereby realizing the connection between the first connecting shell 100 and the second connecting shell 200 and improving the stability and reliability of the connection.

[0044] The locking member can realize quick installation and disassembly, improve the efficiency of installation and maintenance, realize accurate positioning and tight clamping, reduce the gap between the first connecting shell 100 and the second connecting shell 200, and improve the sealing effect.

[0045] When the first connection shell 100 and the second connection shell 200 are closed and connected by the locking member, an insulating space is formed, which is convenient for providing a container for the subsequent injection of insulating materials. The first connection shell 100 and the second connection shell 200 are made of insulating flame-retardant materials. The front end of the insulating space is a connection cavity for accommodating a bolt-type device clamp, which is convenient for the bolt-type device clamp to pass through. The rear end of the insulating space is provided with a base sealing cavity, which realizes the installation and fixation of the equipment and improves the flexibility and convenience of installation.

[0046] The front end of the first connection shell 100 is connected to the first protective shell 16, the front end of the second connection shell 200 is connected to the second protective shell 16, the first protective shell 15 and the second protective shell 16 are connected to form a protective cavity, and the protective cavity 17 is connected to the connection cavity 13. The first protective shell 15 and the second protective shell 16 form a wiring protection cover when the first connection shell 100 and the second connection shell 200 are closed, which expands the protection range of the first connection shell 100 and the second connection shell 200, and enables the base to adapt to various angle wiring forms, providing protection functions for equipment wiring in various situations.

[0047] The first connection shell 100 includes a first connection arc plate 2 and a first connection plate 9 arranged at the front end of the first connection arc plate 2, and the first connection arc plate 2 and the first connection plate 9 are integrally formed.

[0048] The second connecting shell 200 includes a second connecting arc plate 6 and a second connecting plate 8 arranged at the front end of the second connecting arc plate 6 , and the second connecting arc plate 6 and the second connecting plate 8 are integrally formed.

[0049] A sealing connection unit is provided at one end of the first connection shell 100 and the second connection shell 200 for separation and connection through a locking member. The sealing connection unit includes at least one sealing protrusion 19 and a sealing groove 18 corresponding to the sealing protrusion 19 .

[0050] The first connection shell 100 and the second connection shell are plugged into each other through the sealing protrusion 19 and the sealing groove, which can effectively improve the connection strength and accuracy between the first connection shell 100 and the second connection shell 200 and greatly improve the sealing effect.

[0051] The rear ends of the first connecting arc plate and the second connecting arc plate are both provided with sealing sponge pads for pressing and sealing the base and the equipment to ensure that the subsequently injected insulating material will not leak.

[0052] The utility model also relates to a ZW20 type circuit breaker protective piece, comprising the ZW20 type circuit breaker adaptive insulating shield base.

[0053] When the utility model is in use, the first connection shell and the second connection shell are in an open state, so that the first connection shell and the second connection shell cover the device, and then the first connection shell and the second connection shell rotate around the rotating connection piece, so that the first connection shell and the second connection shell are closed, and the sealing protrusion matches the sealing groove at this time, and the locking seat and the elastic locking buckle correspond to each other, so that a closed insulating space is formed between the first connection shell and the second connection shell, providing effective protection for the device. The closed first connection shell and the second connection shell are rotated, so that the wiring protection cover can protect the bolt-type equipment wire clamps at different angles. After adjusting the angle, glue is poured into the insulating space to achieve sealing and fixation.

[0054] In summary, the utility model can achieve insulation protection for the equipment through the arrangement of the first connecting shell, the second connecting shell, the rotating connecting piece, the locking piece and the sealing connecting unit, and can be quickly installed and disassembled, thereby improving the service life and safety of the equipment.

[0055] 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 ZW20 type circuit breaker adaptive insulation shield base, characterized in that: It includes a first connecting shell and a second connecting shell, which are arranged opposite to each other, one end of the first connecting shell and the second connecting shell are installed by a rotating connecting piece, and the other end of the first connecting shell and the second connecting shell are connected in a separable manner by a locking piece, and an insulating space is formed when the first connecting shell and the second connecting shell are closed and connected by the locking piece, the front end of the insulating space is a connecting cavity for accommodating a bolt-type equipment wire clamp, and the rear end of the insulating space is provided with a base sealing cavity.

2. The ZW20 type circuit breaker adaptive insulating shield base according to claim 1 is characterized in that: The front end of the first connecting shell is connected to the first protective shell, and the front end of the second connecting shell is connected to the second protective shell. When the first protective shell and the second protective shell are connected, a protective cavity is formed, and the protective cavity is connected to the connecting cavity.

3. The ZW20 type circuit breaker adaptive insulating shield base according to claim 1 is characterized in that: The first connecting shell and the second connecting shell are both hard shells.

4. The ZW20 type circuit breaker adaptive insulating shield base according to claim 3 is characterized in that: The first connecting shell includes a first connecting arc plate and a first connecting plate arranged at the front end of the first connecting arc plate, and the first connecting arc plate and the first connecting plate are integrally formed.

5. The ZW20 type circuit breaker adaptive insulating shield base according to claim 4, characterized in that: The second connecting shell includes a second connecting arc plate and a second connecting plate arranged at the front end of the second connecting arc plate, and the second connecting arc plate and the second connecting plate are integrally formed.

6. The ZW20 type circuit breaker adaptive insulating shield base according to claim 1, characterized in that: A sealing connection unit is provided at one end of the first connection shell and the second connection shell for separation and connection through a locking member. The sealing connection unit includes at least one sealing protrusion and a sealing groove corresponding to the sealing protrusion.

7. The ZW20 type circuit breaker adaptive insulating shield base according to claim 5, characterized in that: The rotating connecting member includes a rotating shaft, a first rotating sleeve is rotatably provided at the center of the rotating shaft, the first rotating sleeve is connected to the first connecting arc plate of the first connecting shell through the first rotating plate, and second rotating sleeves installed on the rotating shaft are provided at both ends of the first rotating sleeve, the two second rotating sleeves are fixedly connected to the second rotating plate, and the second rotating plate is connected to the second arc plate of the second connecting shell.

8. The ZW20 type circuit breaker adaptive insulating shield base according to claim 1, characterized in that: The locking member includes a locking seat and an elastic locking buckle matched with the locking seat. The locking seat and the elastic locking buckle are respectively arranged on the first connecting shell and the second connecting shell. When the first connecting shell and the second connecting shell are closed, the elastic locking buckle is clamped on the locking seat.

9. The ZW20 type circuit breaker adaptive insulation shield base according to claim 5, characterized in that: The rear ends of the first connecting arc plate and the second connecting arc plate are both provided with sealing sponge pads.

10. A ZW20 type circuit breaker protective member, characterized in that: A ZW20 type circuit breaker adaptive insulating shield base comprising any one of claims 1-9.

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