Molded case circuit breaker with operating handle

Abstract

The utility model discloses a moulded case circuit breaker with an operating handle, which comprises a circuit breaker body and an operating device arranged on the top surface of the circuit breaker body, fixing positions are arranged on the periphery of the surface of the circuit breaker body, and a circuit breaker switch is arranged in the middle of the top surface of the circuit breaker body. The operating device comprises a fixing seat, an operating mechanism and an operating handle, fixing pieces are arranged at the positions, opposite to the fixing positions, of the periphery of the bottom of the fixing seat, the fixing pieces are connected into the fixing positions through fasteners, the operating handle is arranged on the surface of the top of the fixing seat, and the bottom of the operating handle is connected with a rotating rod; the rotating rod passes through the fixed seat and is connected with the operating mechanism, and the operating mechanism is contacted with the surface of the circuit breaker switch. In combination with the scheme, when a short circuit occurs and a maintainer performs maintenance, the handle is rotated to drive the rotating rod to drive the clamping assembly to toggle the circuit breaker switch, the state of the circuit breaker is ensured, maintenance work can be performed by opening the cabinet door, and the operation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of molded case circuit breakers, and particularly relates to a molded case circuit breaker with an operating handle. Background Art

[0002] The molded case circuit breaker is also called a device type circuit breaker. All parts are sealed in a plastic shell. Due to its very compact structure, it is basically impossible to repair the molded case circuit breaker. The molded case circuit breaker mostly adopts manual operation. When the traditional rotary operating handle is in the closed state of the molded case circuit breaker, the cabinet door cannot be locked; at the same time, when the molded case circuit breaker is in the open state, the cabinet door cannot be opened, which is further not conducive to the maintenance and use of the power distribution system. Summary of the Invention

[0003] The purpose of the utility model is to provide a molded case circuit breaker with an operating handle, so as to solve the problems mentioned in the above background art that when the traditional rotary operating handle is in the closed state of the molded case circuit breaker, the cabinet door cannot be locked; at the same time, when the molded case circuit breaker is in the open state, the cabinet door cannot be opened, which is further not conducive to the maintenance and use of the power distribution system.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A molded case circuit breaker with an operating handle, including a circuit breaker body and an operating device arranged on the top surface of the circuit breaker body. Fixing positions are arranged around the surface of the circuit breaker body. A circuit breaker switch is arranged in the middle of the top surface of the circuit breaker body. The operating device includes a fixed seat, an operating mechanism and an operating handle. Four weeks at the bottom of the fixed seat are fixedly connected with first fixing pieces at positions opposite to the fixing positions. The first fixing pieces are threadedly connected into the fixing positions through fasteners. An operating handle is arranged on the top surface of the fixed seat. A rotating rod is fixedly connected to the bottom of the operating handle, and the rotating rod passes through the fixed seat and is fixedly connected with the operating mechanism. The operating mechanism is in contact with the surface of the circuit breaker switch.

[0005] Preferably, the operating mechanism includes a connecting piece, a rotating column, a guiding rod and a clamping component. One end of the top surface of the connecting piece is fixedly connected with the bottom of the rotating rod. The other end of the top surface of the connecting piece is provided with a movable groove. The rotating column is rotatably connected to the bottom surface of the fixed seat. One end of the top of the clamping component rotates around the rotating column. The other end of the top of the clamping component is fixedly connected with a guiding rod, and the guiding rod is slidably connected in the movable groove. The clamping component is in contact with the surface of the circuit breaker switch.

[0006] Preferably, the clamping component includes two second fixing pieces and two clamping blocks. A connecting port is arranged in the middle of the second fixing piece. The two clamping blocks are symmetrically arranged between the two second fixing pieces, and the clamping blocks are movable on both sides of the connecting port.

[0007] Preferably, connection holes are formed on the surface of the clamping block, and a plurality of fixing holes are evenly arranged on the surface of the second fixing piece. A fixing rod is inserted into the fixing hole and the connection hole, and the clamping block is fixed between the two second fixing pieces through the fixing rod.

[0008] Preferably, the surfaces of the two clamping blocks are respectively in contact with the surface of the circuit breaker switch.

[0009] Beneficial effects

[0010] Compared with the existing technology, the beneficial effects of the present utility model are as follows:

[0011] Combined with the design scheme of the present utility model, during the use process, when a short circuit occurs in the circuit, the switch trips instantly. At this time, the contact piece disengages from the release. When maintenance personnel perform maintenance, by rotating the handle to drive the rotating rod to drive the connecting piece to rotate inside the fixed seat, at this time, the clamping assembly is driven by the rotation of the connecting piece to perform the function of moving up and down, and the circuit breaker switch is toggled to ensure that the circuit breaker body is in the on or off state, and then the cabinet door can be opened to perform the maintenance work, and the operation is simple. Description of the drawings

[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 is a schematic diagram of the structure of the operating mechanism of the present utility model.

[0014] 1. Circuit breaker body; 2. Fixed seat; 3. Operating handle; 4. Rotating rod; 5. Operating mechanism;

[0015] 6. Operating device; 11. Fixed position; 12. Fastener; 13. Circuit breaker switch; 21. First fixing piece;

[0016] 51. Connecting piece; 52. Rotating column; 53. Guide rod; 54. Clamping assembly; 511. Movable groove;

[0017] 541. Second fixing piece; 542. Clamping block; 543. Fixing hole; 544. Fixing rod; 545. Connection hole;

[0018] 546. Connection port. Specific implementation manners

[0019] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it is not to be construed as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0021] Such as Figure 1-2 It is a schematic structural diagram of a plastic case circuit breaker with an operating handle in a preferred embodiment of the present utility model. In this embodiment, a plastic case circuit breaker with an operating handle includes a circuit breaker body 1 and an operating device 6 arranged on the top surface of the circuit breaker body 1. Fixing positions 11 are provided around the surface of the circuit breaker body 1, and a circuit breaker switch 13 is arranged in the middle of the top surface of the circuit breaker body 1. The closing and opening functions of the circuit breaker body 1 can be controlled through the circuit breaker switch 13. The operating device 6 includes a fixed seat 2, an operating mechanism 5, and an operating handle 3. First fixing pieces 21 are fixedly connected to the relative positions of the fixing positions 11 around the bottom of the fixed seat 2. The first fixing pieces 21 are threadedly connected to the fixing positions 11 through fasteners 12, so as to realize the fixed installation of the fixed seat 2 on the surface of the circuit breaker body 1. An operating handle 3 that can rotate is arranged on the top surface of the fixed seat 2. A rotating rod 4 is fixedly connected to the bottom of the operating handle 3, and the rotating rod 4 passes through the fixed seat 2 and is fixedly connected to the operating mechanism 5. The operating mechanism 5 is in contact with the surface of the circuit breaker switch 13. The above structure enables the operator to directly rotate the operating handle 3 to drive the operating mechanism 5 through the rotating rod 4 to push the circuit breaker switch 13, thereby realizing the closing and opening functions of the circuit breaker body 1.

[0022] In this embodiment, the operating mechanism 5 includes a connecting piece 51, a rotating column 52, a guide rod 53 and a clamping assembly 54. One end of the top surface of the connecting piece 51 is fixedly connected to the bottom of the rotating rod 4, and an activity groove 511 is formed at the other end of the top surface of the connecting piece 51. The rotating column 52 is rotatably connected to the bottom surface of the fixed seat 2. One end of the top of the clamping assembly 54 rotates around the rotating column 52, and the other end of the top of the clamping assembly 54 is fixedly connected to the guide rod 53, and the guide rod 53 is slidably connected in the activity groove 511. The clamping assembly 54 is in contact with the surface of the circuit breaker switch 13. With this structural design, when the rotating rod 4 rotates under the action of the operating handle 3, it drives the connecting piece 51 inside the fixed seat 2 to rotate. Through the activity groove 511 on the surface of the connecting piece 51, the clamping assembly 54 rotates around the rotating column 52 through the cooperation of the activity groove 511 and the guide rod 53 to achieve the function of left and right displacement, so as to realize the closing and opening of the circuit breaker switch 13 through the clamping assembly 54.

[0023] In this embodiment, the clamping assembly 54 includes two second fixing pieces 541 and two clamping blocks 542. A connecting port 546 is formed in the middle of the fixing piece 541, and the circuit breaker switch 13 is connected in the connecting port 546. The clamping blocks 542 are symmetrically arranged between the two second fixing pieces 541, and the clamping blocks 542 are movable on both sides of the connecting port 546. The clamping function of the circuit breaker switch 13 is realized through the clamping block 543.

[0024] In this embodiment, a connecting hole 545 is formed on the surface of the clamping block 542, and a plurality of fixing holes 543 are evenly arranged on the surface of the second fixing piece 541. With this structural design, it can be adjusted according to different sizes of the circuit breaker switch 13. By the surfaces of the two clamping blocks 542 being in contact with the surface of the circuit breaker switch 13 respectively, it is ensured that the clamping block 542 can be clamped with the circuit breaker switch 13 to avoid gaps, which may cause the situation that the circuit breaker switch 13 cannot be opened and closed in place. A fixing rod 544 is inserted and connected in the fixing hole 543 and the connecting hole 545, and the clamping block 542 is fixed between the two second fixing pieces 541 through the fixing rod 544.

[0025] The above content further elaborates on the present utility model in combination with specific embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope determined by the claims submitted for the present utility model.

Claims

1. A molded case circuit breaker with an operating handle, comprising a circuit breaker body (1) and an operating device (6) arranged on the top surface of the circuit breaker body (1), characterized in that: The periphery of the surface of the circuit breaker body (1) is provided with fixing positions (11). In the middle of the top surface of the circuit breaker body (1), there is a circuit breaker switch (13). The operating device (6) includes a fixed seat (2), an operating mechanism (5), and an operating handle (3). Around the bottom of the fixed seat (2) at positions opposite to the fixing positions (11), there are first fixing pieces (21) fixedly connected. The first fixing pieces (21) are threadedly connected to the fixing positions (11) through fasteners (12). On the top surface of the fixed seat (2), there is an operating handle (3). At the bottom of the operating handle (3), there is a rotating rod (4) fixedly connected, and the rotating rod (4) passes through the fixed seat (2) and is fixedly connected to the operating mechanism (5). The operating mechanism (5) is in contact with the surface of the circuit breaker switch (13).

2. The molded case circuit breaker with an operating handle according to claim 1, wherein: The operating mechanism (5) includes a connecting piece (51), a rotating column (52), a guiding rod (53), and a clamping assembly (54). One end of the top surface of the connecting piece (51) is fixedly connected to the bottom of the rotating rod (4). On the other end of the top surface of the connecting piece (51), there is an activity slot (511). The rotating column (52) is rotatably connected to the bottom surface of the fixed seat (2). One end of the top of the clamping assembly (54) rotates around the rotating column (52). The other end of the top of the clamping assembly (54) is fixedly connected to the guiding rod (53), and the guiding rod (53) is slidably connected in the activity slot (511). The clamping assembly (54) is in contact with the surface of the circuit breaker switch (13).

3. The molded case circuit breaker with an operating handle according to claim 2, characterized in that: The clamping assembly (54) includes two second fixing pieces (541) and two clamping blocks (542). In the middle of the second fixing piece (541), there is a connecting port (546). Between the two second fixing pieces (541), the clamping blocks (542) are symmetrically arranged, and the clamping blocks (542) are movable on both sides of the connecting port (546).

4. The molded case circuit breaker with an operating handle according to claim 3, characterized in that: On the surface of the clamping block (542), there is a connecting hole (545). On the surface of the second fixing piece (541), a plurality of fixing holes (543) are evenly arranged. A fixing rod (544) is inserted and connected in the fixing hole (543) and the connecting hole (545), and through the fixing rod (544), the clamping block (542) is fixed between the two second fixing pieces (541).

5. The molded case circuit breaker with an operating handle according to claim 3, wherein: The surfaces of the two clamping blocks (542) are respectively in contact with the surface of the circuit breaker switch (13).

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