CN217544488U

CN217544488U - Mounting structure of circuit breaker protective cover

Info

Publication number: CN217544488U
Application number: CN202220147350.0U
Authority: CN
Inventors: 牛力; 王骋; 柳林强; 黄建俊
Original assignee: Shanghai Liangxin Electrical Co Ltd
Current assignee: Shanghai Liangxin Electrical Co Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-10-04
Anticipated expiration: 2032-01-19

Abstract

The utility model provides a circuit breaker protection casing mounting structure, includes door frame (1) and protection casing (2), its characterized in that: the protective cover (2) is provided with a connecting support (2 a), the door frame (1) is provided with a rotating assembly (1 a) at a position corresponding to the connecting support (2 a), and the protective cover (2) is rotatably connected with the door frame (1) through the connecting support (2 a) and the rotating assembly (1 a); this mounting structure satisfies the requirement that low-voltage switchgear protection casing quick assembly disassembly maintained and changed, and the product can be under the dismouting door frame circumstances, changes the protection casing, has improved the life of product, has reduced product cost. Meanwhile, due to the modular design of accessories, the installation and the replacement are convenient, multiple products can use the same type of door frames, and the applicability of the products is improved. The padlock function is added, and after the protective cover is closed in place, the padlock can be installed to prevent non-related personnel from operating and avoid safety accidents.

Description

Mounting structure of circuit breaker protective cover

Technical Field

The utility model belongs to the technical field of the circuit breaker structure, specifically say so and relate to a mounting structure of circuit breaker protective housing, reduced the circuit breaker internal fittings and maintained the degree of difficulty, improved the security level of using.

Background

The universal circuit breaker plays the effect of distribution electric energy and protection circuit in distribution system, because universal circuit breaker installs in the switch board, and contains multiple annex, for example actuation coil, separating brake coil, under-voltage release etc. and these annexs all have the forceful electric power when the circuit breaker operation, therefore the circuit breaker all is equipped with the protection casing in order to guarantee user of service's safety, guarantees the protection level requirement and the outward appearance graceful of circuit breaker simultaneously.

The protection casing of current circuit breaker all adopts fastener and circuit breaker base installation together, when the inside annex of circuit breaker broke down, need maintain inside annex, perhaps the user need upgrade the circuit breaker annex when upgrading, must dismantle protection casing fastening screw and can maintain, this kind of maintenance mode efficiency is lower in the actual operation, the takie time is long, bring inconvenience for operating personnel, and universal circuit breaker is in maintenance period, because of shutting down the outage scope that leads to the fact great, the influence is serious. On the other hand, the existing protective cover only plays a role in protecting the objective environment, has no locking function on the product, and cannot prevent the potential safety hazard caused by non-professional persons opening the protective cover; on the other hand, the existing protective cover needs to be manufactured into various specifications according to the size of a product to be protected, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mounting structure of circuit breaker shield to the defect that above-mentioned protection casing for current circuit breaker exists, can change transparent protection casing under the door frame condition of not dismouting, improved the life of product, reduced product cost, accessory modularized design simultaneously, easy to assemble, change the maintenance, multiple product can use same model door frame, has increased the suitability of product. The protective cover is added with the function of a padlock, and after the protective cover is closed in place, the padlock can be installed to prevent non-related personnel from operating and avoiding safety accidents.

Technical scheme

In order to realize the technical purpose, the utility model provides a pair of circuit breaker protection casing mounting structure, including door frame and protection casing, its characterized in that: the protective cover is provided with a connecting support, a rotating assembly is arranged on the door frame corresponding to the connecting support, and the protective cover is rotatably connected with the door frame through the connecting support and the rotating assembly;

the rotating assembly comprises a base, a connecting shaft is arranged in a sliding groove hole of the base and can slide back and forth, the connecting shaft is connected with an elastic piece to provide ejection force for the elastic piece, a limiting protrusion is arranged on the connecting shaft, a limiting opening is arranged at a position corresponding to the limiting protrusion on the base, the connecting shaft can extend out of or retract into the sliding groove hole in the sliding process, a connecting hole is arranged at a position corresponding to the connecting shaft on a connecting support, the connecting shaft can enter the connecting hole after extending out of the sliding groove hole to realize the rotation of the door frame and the protective cover, the connecting shaft is driven to retract out of the sliding groove hole, the position corresponding to the limiting opening can rotate, and therefore the limiting protrusion can enter the limiting opening and further prevent the connecting shaft from extending out of the sliding groove hole.

Furthermore, the elastic part is a spring, one end of the spring is propped against the bottom of the connecting shaft, and the other end of the spring is propped against the bottom surface of the sliding groove hole.

Furthermore, the cover plate is fixedly arranged on the base and forms a sliding groove hole with the sliding groove on the base, and a limiting notch is arranged at the position, corresponding to the limiting opening, of the cover plate.

Furthermore, a padlock support is arranged in a sliding rail groove in the back face of the door frame, a padlock protrusion is arranged on the protective cover corresponding to the padlock support, and when the protective cover and the door frame are closed, the protective cover and the door frame can be locked by a padlock on the padlock support and the padlock protrusion.

Furthermore, a sealing ring is arranged on the inner side of the protective cover.

Furthermore, a locking support is arranged on the door frame, a handle assembly is arranged at a position, corresponding to the locking support, on the protective cover, when the protective cover is closed with the door frame, the handle assembly is screwed into a threaded hole in the locking support to lock the protective cover and the door frame.

Furthermore, a gasket is installed on the back of the door frame, and a sealing strip is fixedly installed on the gasket.

Advantageous effects

The utility model provides a pair of circuit breaker protection casing mounting structure satisfies the requirement that low-voltage switchgear protection casing quick assembly disassembly maintained and changed, and the product can be under the door frame condition of not dismouting, changes the protection casing, has improved the life of product, has reduced product cost. Meanwhile, due to the modular design of accessories, the installation and the replacement are convenient, and multiple products can use the door frames of the same model, so that the applicability of the products is improved. The padlock function is added, and after the protective cover is closed in place, the padlock can be installed, so that the operation of non-related personnel is prevented, and safety accidents are avoided.

Drawings

Fig. 1a is a front schematic view of a protective cover mounting structure in an embodiment of the present invention;

fig. 1b is a schematic view of the back of the protective cover mounting structure in the embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a rotating assembly according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a handle assembly according to an embodiment of the present invention;

fig. 4a is a schematic diagram of a seal ring structure in the embodiment of the present invention.

Fig. 4b is a schematic diagram of a sealing ring structure in the embodiment of the present invention.

Fig. 5 is a schematic diagram of a padlock position according to an embodiment of the present invention.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "inner", "outer", "front", "rear", "left", "right", "common side", "standby side", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail with reference to specific embodiments and drawings.

As shown in fig. 1a and 1b, a protective cover mounting structure for a circuit breaker includes a door frame 1 and a protective cover 2, in this embodiment, the protective cover is a transparent protective cover when finding 2. The protective cover 2 is provided with a connecting support 2a, the door frame 1 is provided with a rotating assembly 1a at a position corresponding to the connecting support 2a, and the protective cover 2 and the door frame 1 are rotatably connected through the connecting support 2a and the rotating assembly 1 a;

specifically, as shown in fig. 2, the rotating assembly 1a includes a base 1a01, a connecting shaft 1a02 is installed in a sliding slot hole 1a0101 of the base 1a01 and can slide back and forth, the connecting shaft 1a02 is connected with an elastic member 1a06 to provide a jacking force for the connecting shaft, a limiting protrusion 1a0201 is provided on the connecting shaft 1a02, a limiting opening 1a0102 is provided on the base 1a01 corresponding to the limiting protrusion 1a0201, the connecting shaft 1a02 can extend out of or retract into the sliding slot hole 1a0101 during sliding in the sliding slot hole 1a0101, a connecting hole 2a01 is provided on the connecting bracket 2a corresponding to the connecting shaft 1a02, the connecting shaft 1a02 can enter the connecting hole 2a01 after extending out of the sliding slot hole 1a0101 to realize rotational connection between the door frame 1 and the protection cover 2, and the connecting shaft 1a02 can rotate at a position corresponding to the limiting opening 1a0102 during retracting out of the sliding slot hole 1a0101, so that the connecting shaft 1a02 can rotate at a0102 corresponding to prevent the limiting protrusion 1a0201 from extending out of the limiting opening 1a0101. In this embodiment, the elastic element 1a06 is a spring, one end of the spring abuts against the bottom of the connecting shaft 1a02, the other end abuts against the bottom surface of the chute hole 1a0101, the cover plate 1a03 is fixedly mounted on the base 1a01 and forms the chute hole 1a0101 with the chute on the base 1a01, and a position-limiting notch 1a0301 is formed in the cover plate 1a03 corresponding to the position-limiting opening 1a 0102. As shown in fig. 1a, a padlock support 3 is installed in a sliding rail groove 1a04 on the back surface of a door frame 1, a padlock protrusion 2b is arranged on the protection cover 2 corresponding to the padlock support 3, and when the protection cover 2 is closed with the door frame 1, the protection cover 2 and the door frame 1 can be locked by padlock on the padlock support 3 and the padlock protrusion 2b as shown in fig. 5. The inner side of the protective cover 2 is provided with a sealing ring 4. In this embodiment, a D-ring as shown in fig. 4a or a P-ring as shown in fig. 4b is used. The door frame 1 is provided with a locking support 1a05, a handle component 2c is arranged at the position, corresponding to the locking support 1a05, of the protective cover 2, when the protective cover 2 and the door frame 1 are closed, the protective cover 2 and the door frame 1 are locked by screwing the handle component 2c into a threaded hole in the locking support 1a05 as shown in the attached drawing 3. The gasket 6 is installed on the back of the doorframe 1, and the weather strip 5 is fixedly installed on the gasket 6.

The working principle of the embodiment is that when the protective cover 2 and the door frame 1 need to be detached, the protective cover 2 is opened, the limiting protrusion 1a0201 is shifted to overcome the spring force of the spring downwards in the sliding groove hole 1a0101, the connecting shaft 2a01 retracts from the sliding groove hole 1a0101, when the limiting protrusion 1a0201 slides to the corresponding height of the limiting opening 1a0102, the limiting protrusion 1a0201 is rotated to enter the limiting opening 1a0102, the connecting shaft 2a01 cannot extend out of the sliding groove hole 1a0101 any more, the protective cover 2 and the door frame 1 can be detached quickly, when the protective cover 2 and the door frame 1 need to be connected, the limiting protrusion 1a0201 is rotated to enter the sliding groove hole 1a0101 from the limiting opening 1a0102, the connecting shaft 2a01 ejects out of the sliding groove hole 1a0101 to enter the connecting hole 2a01 under the spring force of the spring, so as to realize the rotary connection of the protective cover 1 and the protective cover 2 with the protective cover 2, and the door frame 1 after the protective cover 2 is closed, and the padlock support 4 and the padlock protrusion 2 b. And simultaneously, the handle assembly 2c is screwed into the threaded hole on the locking bracket 1a05 to realize the locking of the protective cover 2 and the doorframe 1. At this time, the seal ring 5 is extruded and deformed to perform a sealing function, and the seal strip 6 is extruded and deformed to perform a sealing function of the reinforcing gasket 7.

The utility model provides a pair of circuit breaker protection casing mounting structure satisfies the requirement that low-voltage switchgear protection casing quick assembly disassembly maintained and changed, and the product can be changed the protection casing under the door frame condition of not dismouting, has improved the life of product, has reduced product cost. Meanwhile, due to the modular design of accessories, the installation and the replacement are convenient, multiple products can use the same type of door frames, and the applicability of the products is improved. The padlock function is added, and after the protective cover is closed in place, the padlock can be installed, so that the operation of non-related personnel is prevented, and safety accidents are avoided.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a circuit breaker protection casing mounting structure, includes door frame (1) and protection casing (2), its characterized in that: the protective cover (2) is provided with a connecting support (2 a), the door frame (1) is provided with a rotating assembly (1 a) at a position corresponding to the connecting support (2 a), and the protective cover (2) is rotatably connected with the door frame (1) through the connecting support (2 a) and the rotating assembly (1 a);

the rotating assembly (1 a) comprises a base (1 a 01), a connecting shaft (1 a 02) is arranged in a sliding groove hole (1 a 0101) of the base (1 a 01) and can slide back and forth, the connecting shaft (1 a 02) is connected with an elastic piece (1 a 06) to provide ejection force for the connecting shaft, a limiting protrusion (1 a 0201) is arranged on the connecting shaft (1 a 02), a limiting opening (1 a 0102) is arranged at a position, corresponding to the limiting protrusion (1 a 0201), on the base (1 a 01), the connecting shaft (1 a 02) can extend out of or retract into the sliding groove hole (1 a 0101) in the sliding process of the sliding groove hole (1 a 0101), a connecting hole (2 a 01) is arranged at a position, corresponding to the connecting shaft (1 a 02), after extending out of the sliding groove hole (1 a 0101), the connecting shaft (1 a 02) can enter the connecting hole (2 a 01) to realize the rotation connection of the door frame (1) and the protection cover (2), and the connecting shaft (1 a) can extend out of the limiting protrusion (1 a 0101) and then can retract into the limiting opening (1 a 1) from the sliding groove hole (1 a 0101), so that the limiting protrusion (1 a) can extend out of the connecting shaft (1 a 1) and the limiting protrusion (1) and the limiting opening can extend out of the connecting shaft (1 a 0101) so that the limiting protrusion can extend out of the limiting protrusion (1 a) and the limiting protrusion can extend out of the limiting opening (1 a) and the connecting shaft can be prevented from the sliding groove hole (1).

2. The circuit breaker shield mounting structure of claim 1, wherein: the elastic piece (1 a 06) is a spring, one end of the spring is propped against the bottom of the connecting shaft (1 a 02), and the other end of the spring is propped against the bottom surface of the sliding groove hole (1 a 0101).

3. The circuit breaker shield mounting structure of claim 1, wherein: the cover plate (1 a 03) is fixedly arranged on the base (1 a 01) and forms a sliding groove hole (1 a 0101) with a sliding groove on the base (1 a 01), and a limiting notch (1 a 0301) is arranged on the cover plate (1 a 03) corresponding to the limiting opening (1 a 0102).

4. The circuit breaker shield mounting structure of claim 1, wherein: padlock support (3) dress is in slide rail groove (1 a 04) at door frame (1) back, on protection casing (2) with padlock support (3) department of correspondence is equipped with padlock arch (2 b), protection casing (2) with can pass through when door frame (1) is closed padlock support (3) and padlock arch (2 b) are gone up the padlock and are realized the locking of protection casing (2) and door frame (1).

5. The circuit breaker shield mounting structure of claim 1, wherein: the inner side of the protective cover (2) is provided with a sealing ring (4).

6. The circuit breaker shield mounting structure of claim 1, wherein: the door lock is characterized in that a locking support (1 a 05) is arranged on the door frame (1), a handle assembly (2 c) is arranged at the position, corresponding to the locking support (1 a 05), of the protective cover (2), when the protective cover (2) is closed with the door frame (1), the handle assembly (2 c) is locked by screwing a threaded hole in the locking support (1 a 05) into the protective cover (2) and the door frame (1).

7. The circuit breaker shield mounting structure of claim 1, wherein: the gasket (6) is arranged on the back surface of the door frame (1), and the sealing strip (5) is fixedly arranged on the gasket (6).