Circuit breaker protective cover for switch cabinet

Abstract

The utility model discloses a circuit breaker protective cover for a switch cabinet, which relates to the technical field of circuit breaker protective covers for switch cabinets and comprises a bottom plate fixed with the switch cabinet through fixing bolts and a circuit breaker clamped on the bottom plate through a lining plate, side plates are arranged on the side surface of the bottom plate, and a protective cover is arranged between the two side plates. One end of each protective cover is movably connected with the fixing plate through a pin shaft, sealing blocks are arranged on the surface of the fixing plate, the side face of the bottom plate and the side faces of the protective covers, and the protective covers are connected through connecting frames. The protective cover is reasonable in design structure, the protective cover can be flexibly opened and closed through pin shaft connection, and the circuit breaker is convenient to operate and maintain. The handle design facilitates operation of operators and improves the working efficiency, the clamping design of the clamping grooves and the clamping blocks and the clamping design of the limiting grooves and the clamping mechanisms facilitate installation and disassembly of the circuit breaker and the protective covers, connection is firm, operation is easy and convenient, the clamping mechanisms can achieve automatic clamping, the protective covers are supported by the side plates, the connecting frames are connected with the multiple protective covers to form a whole, the structural stability is enhanced, and the service life is prolonged. And overall mounting and dismounting are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a circuit breaker protective cover for switch cabinet technical field, specifically a circuit breaker protective cover for switch cabinet. BACKGROUND

[0002] In the power system, as the key device of control and protection of power equipment, the circuit breaker in the switch cabinet plays a core role in the on-off control and fault protection of power. However, the circuit breaker faces many threats in the operation process, and effective protection measures are needed. The traditional protection methods and devices have many shortcomings, which has given rise to the demand for new circuit breaker protective covers for switch cabinets.

[0003] The switch cabinet is usually installed in various complex environments, such as outdoor substations, humid basements or dusty industrial plants. Dust, moisture, foreign matter and other environmental impurities can easily enter the interior of the switch cabinet and adhere to the surface of the circuit breaker. Dust accumulation may affect the heat dissipation performance of the circuit breaker, causing its temperature to be too high during operation, thereby reducing electrical performance and even causing a fault. Long-term moisture erosion can cause the metal parts of the circuit breaker to rust and corrode, affecting its electrical and mechanical properties, increasing the contact resistance, causing local overheating, and in severe cases, causing a short circuit accident. The entry of foreign matter may cause poor contact of the circuit breaker contacts, affecting normal opening and closing operations and threatening the safe and stable operation of the power system.

[0004] The early installation method of the circuit breaker protective cover is complex, and welding or bolt fastening is usually used. The installation process requires professional tools and high technical level, consumes a lot of time and labor, which not only increases the installation cost, but also makes it difficult to disassemble when the circuit breaker needs to be maintained or replaced in the later period, greatly affecting the work efficiency. In addition, the complex installation method may also cause the protective cover to deviate in position during installation, affecting the protection effect.

[0005] The traditional circuit breaker protective cover has defects in structural design, with poor sealing performance. For example, there are often large gaps between the protective cover and the switch cabinet and between the spliced protective plates, which cannot effectively block the invasion of dust, moisture and other impurities. Moreover, some protective covers do not take into account the vibration and thermal expansion and contraction factors generated during the operation of the circuit breaker. During long-term use, the gap will further expand, and the protection effect will gradually decrease, making it difficult to meet the strict requirements of the circuit breaker on the protection environment.

[0006] Some protective covers are designed to be too closed, and the entire protective cover needs to be removed or complicated operation steps need to be taken when operating the circuit breaker (such as closing and opening) and performing routine maintenance (such as inspection, repair and replacement of parts), which increases the difficulty and workload of the operators, reduces work efficiency, and may cause the protective cover to be damaged due to frequent disassembly, shortening its service life. Therefore, we provide a circuit breaker protective cover for switch cabinet to solve the above problems. Practical new content

[0007] (I) The technical problems solved

[0008] The utility model discloses a circuit breaker protection cover for switch cabinet makes up the deficiency of prior art, provide a circuit breaker protection cover for switch cabinet.

[0009] (II) Technical solutions

[0010] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a circuit breaker protection cover for switch cabinet, including the bottom plate of being fixed with switch cabinet through fixed bolt, the circuit breaker of being connected through the lining plate of bottom plate, the lateral plate of being provided with on the bottom plate side, the protection cover of being provided with between two lateral plates, and the movable joint of protection cover one end through pin shaft and fixed plate, and the sealing block of being provided with on fixed plate surface, bottom plate side and protection cover side, the connection of being connected through connecting frame between multiple protection covers, the limit slot of being evenly set up on protection cover side, and the clamping mechanism of being clamped of protection cover through limit slot and connecting frame and lateral plate surface, and the magnetic attraction strip of being provided with on the other end of protection cover.

[0011] Further, the clamping mechanism includes that the recess corresponding with limit slot is evenly set up on the both sides of connecting frame and lateral plate side, the connecting shaft is arranged in recess, the movable limit block is sleeved on the surface of connecting shaft, the spring is sleeved on the surface of connecting shaft, one end of spring is fixed with recess inner wall, and the other end is fixed with limit block surface.

[0012] Further, the handle is arranged on the surface of protection cover, and the magnetic attraction area is arranged on the bottom plate and is adapted with the position of magnetic attraction strip.

[0013] Further, the lining plate is arranged on the surface of bottom plate, and the lining plate and fixed plate are fixed with bottom plate through fixed bolt.

[0014] Further, the positioning groove is set up on the bottom plate side, and the positioning block is arranged in positioning groove, and the positioning block is fixed with sealing block.

[0015] Further, the clamping groove is arranged at the bottom end of circuit breaker, and the clamping groove at the bottom end of circuit breaker is clamped with the clamping block fixed on the surface of lining plate.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the circuit breaker protection cover for switch cabinet has the beneficial effects as follows:

[0018] The utility model discloses a fixed bolt is connected bottom plate and switch cabinet, lining and bottom plate, ensure that the whole installation is firm, reduce the shake of when operating, and positioning groove and positioning block cooperate accurate positioning sealing block and auxiliary installation, promote installation accuracy and efficiency, and sealing block blocks dust, moisture and other impurities, and magnetic attraction strip and magnetic attraction area cooperate and enhance the sealing property, prevent the erosion of the breaker of impurity, prolong its life.

[0019] Two, the utility model discloses a pin shaft connection makes the protective cover can open and close flexibly, and convenient operation and maintain the breaker. The handle design convenient operator operation, improve work efficiency, and the clamping of the clamping groove and the clamping block, the limiting slot and the clamping mechanism, the installation of the breaker and the protective cover is convenient, disassembly, firm connection and simple operation, and the clamping mechanism can also be automatically clamped, and the side plate supports the protective cover, and the connecting frame connects multiple protective covers and forms a whole, enhances the structural stability, and the whole installation and disassembly are convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the three -dimensional structure schematic diagram of single breaker and protective cover of the utility model;

[0021] Figure 2 It is the three -dimensional structure schematic diagram of multiple breaker and protective cover of the utility model;

[0022] Figure 3 It is the three -dimensional structure schematic diagram of side plate in the utility model;

[0023] Figure 4 It is the three -dimensional structure schematic diagram of connecting frame in the utility model;

[0024] Figure 5 It is the three -dimensional structure schematic diagram of protective cover in the utility model;

[0025] Figure 6 It is the three -dimensional structure schematic diagram of breaker in the utility model;

[0026] Figure 7 It is the three -dimensional split structure schematic diagram of sealing block and bottom plate in the utility model;

[0027] Figure 8 It is the three -dimensional structure schematic diagram of sealing block in the utility model;

[0028] Figure 9 It is the main view structure schematic diagram of side plate in the utility model;

[0029] Figure 10 It is the three -dimensional structure schematic diagram of the utility model Figure 9 in A place amplification structure schematic diagram.

[0030] In the diagram: 1. Side plate; 2. Sealing block; 3. Protective cover; 4. Circuit breaker; 5. Limiting groove; 6. Limiting block; 7. Handle; 8. Base plate; 9. Magnetic strip; 10. Connecting frame; 11. Groove; 12. Fixing bolt; 13. Fixing plate; 14. Pin; 15. Slot; 16. Positioning block; 17. Liner plate; 18. Locking block; 19. Positioning groove; 20. Connecting shaft; 21. Spring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1-10 As shown, this utility model provides a technical solution: a circuit breaker protective cover for switchgear, including a base plate 8 fixed to the switchgear by fixing bolts 12. The fixing bolts 12 securely connect the base plate 8 to the switchgear, ensuring that the entire protective cover 3 is firmly installed and will not shift due to vibration or other factors during switchgear operation, thereby stably protecting the circuit breaker 4 and ensuring the safe operation of the switchgear. The circuit breaker 4 is snapped onto the base plate 8 by a liner 17. The snap-on method of the liner 17 is convenient and quick, facilitating the installation and disassembly of the circuit breaker 4, and making it easier to maintain and repair the circuit breaker 4 in the future. At the same time, it can ensure the installation stability of the circuit breaker 4 on the base plate 8 and reduce shaking during operation. Side plates 1 are provided on the sides of the base plate 8, and a protective cover 3 is provided between the two side plates 1. The side plates 1 provide lateral support for the protective cover 3, enhancing the stability of the overall structure and enabling the protective cover 3 to better perform its protective function. One end of the protective cover 3 is movably connected to the fixed plate 13 through a pin 14. The movable connection of the pin 14 allows the protective cover 3 to be opened and closed flexibly, facilitating the operation and maintenance of the circuit breaker 4. At the same time, it can ensure the stability of the protective cover 3 in the closed state, effectively protecting the circuit breaker 4. Sealing blocks 2 are provided on the surface of the fixed plate 13, the side of the base plate 8, and the side of the protective cover 3. The setting of the sealing blocks 2 can enhance the protective effect, effectively blocking dust, moisture and other impurities from entering the switch cabinet, preventing the circuit breaker 4 from being damaged by these impurities, and extending the service life of the circuit breaker 4.

[0033] like Figure 2As shown, the plurality of protective covers 3 are connected by the connecting frame 10, the connecting frame 10 connects the plurality of protective covers 3, so that each protective cover 3 forms a whole, enhances the stability of the protective structure, improves the protection effect, and facilitates the installation and disassembly of the whole, and can be installed in different switch cabinets, the length can be arranged according to the specific situation, the side of the protective cover 3 is uniformly provided with a limiting groove 5, and the protective cover 3 is clamped with the clamping mechanism on the surface of the connecting frame 10 and the side plate 1 through the limiting groove 5, the limiting groove 5 cooperates with the clamping mechanism, which not only facilitates the installation and fixation of the protective cover 3, but also can accurately position the position of the protective cover 3, ensures the accuracy of installation, further improves the reliability of protection, and the other end of the protective cover 3 is provided with a magnetic strip 9, the existence of the magnetic strip 9 can attract the magnetic attraction area on the bottom plate 8 when the protective cover 3 is closed, so that the protective cover 3 is closed more tightly, further improving the sealing of the protection, preventing impurities from entering.

[0034] Specifically, as shown in the figure, Figure 4 The clamping mechanism includes a recess 11 corresponding to the limiting groove 5 uniformly arranged on the two side surfaces of the connecting frame 10 and the side surface of the side plate 1, a connecting shaft 20 is arranged in the recess 11, a movable limiting block 6 is sleeved on the surface of the connecting shaft 20, a spring 21 is sleeved on the surface of the connecting shaft 20, one end of the spring 21 is fixed with the inner wall of the recess 11, and the other end is fixed with the surface of the limiting block 6. This clamping mechanism is designed ingeniously, when the protective cover 3 is installed, the limiting block 6 is extruded to compress the spring 21 and move inward, when the limiting groove 5 is aligned with the recess 11, the limiting block 6 is ejected and clamped into the limiting groove 5 under the elastic force of the spring 21, realizing automatic clamping, which is simple and convenient to operate, and firm and reliable in connection.

[0035] Specifically, as shown in the figure, Figure 5 The surface of the protective cover 3 is provided with a handle 7, which facilitates the operation of the operator to open and close the protective cover 3, especially in the case of frequent operation, which can effectively improve the work efficiency and reduce the operation time, the bottom plate 8 is provided with a magnetic attraction area matched with the position of the magnetic strip 9, and the magnetic attraction design of the two is matched with each other, which further enhances the sealing performance of the protective cover 3 when it is closed, ensures the stability of the protection effect, and reduces the risk of impurities entering the switch cabinet.

[0036] Specifically, as shown in the figure, Figure 7As shown, a liner 17 is provided on the surface of the base plate 8, and both the liner 17 and the fixing plate 13 are fixed to the base plate 8 by fixing bolts 12. The use of fixing bolts 12 ensures the stability of the connection between the liner 17 and the fixing plate 13 and the base plate 8, thereby providing a stable installation foundation for the circuit breaker 4 and the protective cover 3, and ensuring the reliability of the entire protective structure. A positioning groove 19 is provided on the side of the base plate 8, and a positioning block 16 is provided in the positioning groove 19. The positioning block 16 is fixed to the sealing block 2. The cooperation between the positioning groove 19 and the positioning block 16 can not only accurately determine the position of the sealing block 2 and ensure the consistency of the sealing effect, but also help to position the entire protective cover 3 during installation, improving the accuracy and efficiency of installation.

[0037] Specifically, such as Figure 7 and Figure 6 As shown, the circuit breaker 4 is provided with a slot 15 at the bottom end, and the circuit breaker 4 is engaged with the locking block 18 fixed on the surface of the liner plate 17 through the slot 15 at the bottom end. The engagement method of the slot 15 and the locking block 18 can quickly and accurately install the circuit breaker 4, ensure the stability of the circuit breaker 4 during operation, prevent its displacement, and facilitate quick disassembly for maintenance or replacement when needed.

[0038] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circuit breaker protective cover for a switch cabinet, comprising a bottom plate (8) fixed to the switch cabinet by fixing bolts (12), and a circuit breaker (4) clamped to the bottom plate (8) via a backing plate (17), characterized in that: The bottom plate (8) is provided with side plates (1), and protective covers (3) are arranged between the two side plates (1), one end of the protective cover (3) is movably connected with a fixed plate (13) through a pin shaft (14), the surface of the fixed plate (13), the side surface of the bottom plate (8) and the side surface of the protective cover (3) are provided with sealing blocks (2), a plurality of protective covers (3) are connected through connecting frames (10), the side surface of the protective cover (3) is uniformly provided with limiting grooves (5), the protective cover (3) is clamped with the clamping mechanism on the surface of the connecting frame (10) and the side plate (1) through the limiting grooves (5), and the other end of the protective cover (3) is provided with a magnetic strip (9).

2. A circuit breaker guard for a switchgear according to claim 1, characterized in that: The clamping mechanism comprises grooves (11) corresponding to the limiting grooves (5) and uniformly arranged on the two side surfaces of the connecting frame (10) and the side surface of the side plate (1), a connecting shaft (20) is arranged in the groove (11), a movable limiting block (6) is sleeved on the surface of the connecting shaft (20), a spring (21) is sleeved on the surface of the connecting shaft (20), one end of the spring (21) is fixed to the inner wall of the groove (11), and the other end is fixed to the surface of the limiting block (6).

3. A circuit breaker guard for a switchgear according to claim 1, characterized in that: The surface of the protective cover (3) is provided with a handle (7), and the bottom plate (8) is provided with a magnetic area matched with the position of the magnetic strip (9).

4. The circuit breaker guard for switchgear according to claim 1, characterized in that: The surface of the bottom plate (8) is provided with a lining plate (17), and the lining plate (17) and the fixed plate (13) are fixed to the bottom plate (8) through fixed bolts (12).

5. The circuit breaker guard for switchgear according to claim 1, characterized in that: The side surface of the bottom plate (8) is provided with a positioning groove (19), and a positioning block (16) is arranged in the positioning groove (19), and the positioning block (16) is fixed to the sealing block (2).

6. A circuit breaker guard for a switchgear according to claim 4, characterized in that: The bottom end of the circuit breaker (4) is provided with a clamping groove (15), and the circuit breaker (4) is clamped with a clamping block (18) fixed to the surface of the lining plate (17) through the clamping groove (15) at the bottom end.

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