Switch operating mechanism for low-voltage drawer cabinet

Abstract

The utility model discloses a switch operating mechanism for a low-voltage drawer cabinet, which comprises a drawer body, an installation cavity is arranged in the drawer body, a molded case circuit breaker is installed in the installation cavity, and the front end face of the drawer body is rotatably connected with a knob switch. The knob switch and the molded case circuit breaker are connected through a switch operation mechanism, a counter is fixedly installed on the side, located on the molded case circuit breaker, in the installation cavity, and the counter is connected with the switch operation mechanism through a pull wire. In combination with the structural design of the utility model, by rotating the knob switch, when the molded case circuit breaker is switched on, the square shaft rotates, the first connecting sheet on the square shaft drives the stay wire, the stay wire drives the second connecting sheet installed on the mechanical counter, and counting is increased by one every time the molded case circuit breaker is switched on, thereby effectively solving the problems proposed in the background technology.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage power distribution products, in particular to a switch operating mechanism for a low-voltage drawer cabinet. Background Art

[0002] Low-voltage switchgear is suitable for power transmission, distribution, and conversion in industries such as power plants, petroleum, chemical, metallurgy, textiles, and high-rise buildings. Low-voltage drawer cabinets typically consist of a cabinet body, drawer doors, and a power distribution unit (PDU). The PDU is typically installed within the drawer, and the drawer doors and PDU are connected via a switch operating mechanism.

[0003] However, the small molded case circuit breakers in existing low-voltage drawer cabinets typically have a mechanical opening and closing lifespan of tens of thousands of times, while the corresponding operating mechanism is only required to undergo 500 tests according to national standards. Routine electrical maintenance is typically performed at regular intervals, such as once a year. While intelligent circuit breakers can record the number of times molded case switches are opened and closed, standard molded case circuit breakers lack this feature, making it impossible to count the number of times the operating mechanism is used. Summary of the Invention

[0004] The purpose of the present utility model is to provide a switch operating mechanism for a low-voltage drawer cabinet to solve the problem mentioned in the background art above that the small molded case circuit breakers in existing low-voltage drawer cabinets usually have a mechanical opening and closing life of tens of thousands of times, while the corresponding operating mechanism has a test requirement of only 500 times according to the national standard. In the daily electrical maintenance process, routine maintenance is usually carried out at time intervals, such as once a year. However, while intelligent circuit breakers can record the number of times the molded case switch is opened and closed, ordinary molded case circuit breakers do not have this function, and therefore the number of times the operating mechanism is used cannot be counted.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a switch operating mechanism for a low-voltage drawer cabinet, comprising a drawer body, a mounting cavity being defined in the drawer body, a molded case circuit breaker being mounted in the mounting cavity, a knob switch being rotatably connected to the front end face of the drawer body, and the knob switch and the molded case circuit breaker being connected via a switch operating mechanism, a counter being fixedly mounted on one side of the molded case circuit breaker in the mounting cavity, and the counter being connected to the switch operating mechanism via a pull wire.

[0006] Preferably, the switch operating mechanism includes a square shaft, a fixing frame and an auxiliary operating mechanism. The fixing frame is fixedly installed in the installation cavity. One end of the square shaft is connected to the rear end of the knob switch, and the other end of the square shaft passes through the fixing frame and is connected to the molded case circuit breaker. An auxiliary operating mechanism is installed on one side of the fixing frame in the installation cavity, and the auxiliary operating mechanism is connected to the square shaft through a driving member.

[0007] Preferably, a rotation opening is provided in the middle of the surface of the fixing frame, and a square shaft is rotatably connected in the rotation opening.

[0008] Preferably, a first connecting piece is fixedly connected to the surface of the square shaft between the fixing bracket and the molded case circuit breaker, and a first connecting position is provided on the surface of the first connecting piece.

[0009] Preferably, the counter is rotatably connected to a side close to the square shaft with a second connecting piece for controlling the number of times the counter counts, and a second connecting position is provided on the surface of the second connecting piece.

[0010] Preferably, the first connection position and the second connection position are connected by a pull wire.

[0011] Beneficial effects

[0012] Compared with the existing technology, the beneficial effects of the present invention are:

[0013] Combined with the structural design of the utility model, by turning the knob switch, when the molded case circuit breaker is closed, the square shaft rotates, the first connecting piece on the square shaft drives the pull wire, and the pull wire drives the second connecting piece installed on the mechanical counter. Each time the circuit breaker is closed, the count is increased by one, thereby effectively solving the problems raised in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is an enlarged structural diagram of point A of the present utility model;

[0016] Figure 3 This is a schematic diagram of the matching structure of the counter and the square shaft of the utility model.

[0017] 1. Drawer body; 2. Mounting cavity; 3. Molded case circuit breaker; 4. Rotary switch; 5. Switch operating mechanism;

[0018] 6. Counter; 7. Pull wire; 51. Square shaft; 52. Fixed bracket; 53. Auxiliary operating mechanism; 54. First connecting piece;

[0019] 55. Driving member; 61. Second connecting piece; 521. Rotation opening; 541. First connecting position; 611. Second connecting position. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper," "lower," "left," "right," "front," "back," "inner," "outer," "vertical," and "horizontal" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limitations on 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.

[0022] like Figure 1-3 It is a structural schematic diagram of a switch operating mechanism for a low-voltage drawer cabinet in a preferred embodiment of the present invention. In this embodiment, a switch operating mechanism for a low-voltage drawer cabinet includes a drawer body 1, an installation cavity 2 is opened in the drawer body 1, a molded case circuit breaker 3 is installed in the installation cavity 2, a knob switch 4 is rotatably connected to the front end face of the drawer body 1, and the knob switch 4 and the molded case circuit breaker 3 are connected through a switch operating mechanism 5, so that the operator can control the opening and closing function of the molded case circuit breaker by rotating the knob switch 4 to drive the switch operating mechanism 5, and a counter 6 is fixedly installed on one side of the molded case circuit breaker 3 in the installation cavity 2, and the counter 6 is connected to the switch operating mechanism 5 through a pull wire 7. When the switch operating mechanism 5 is rotated to turn on the molded case circuit breaker 3, the rotation of the switch operating mechanism 5 drives the counter 6 through the pull wire 7, and the count is increased by one.

[0023] In this embodiment, the switch operating mechanism 5 includes a square shaft 51, a fixing frame 52 and an auxiliary operating mechanism 53. The fixing frame 52 is fixedly installed in the installation cavity 2, and one end of the square shaft 51 is connected to the rear end of the knob switch 4, and the other end of the square shaft 51 passes through the fixing frame 52 and is connected to the molded case circuit breaker 3. The auxiliary operating mechanism 53 is installed on one side of the fixing frame 52 in the installation cavity 2, and the auxiliary operating mechanism 53 is connected to the square shaft 51 through a driving member 55. This auxiliary operating mechanism 53 is a prior art and will not be described in detail here.

[0024] In this embodiment, a rotation opening 521 is opened in the middle of the surface of the fixing frame 52 , and the square shaft 51 is rotatably connected in the rotation opening 521 , thereby limiting the square shaft 51 through the rotation opening 521 .

[0025] In this embodiment, a first connecting piece 54 is fixedly connected to the surface of the square shaft 51 between the fixing bracket 52 and the molded case circuit breaker 3 , and a first connecting position 541 is defined on the surface of the first connecting piece 54 .

[0026] In this embodiment, the counter 6 is rotatably connected to a side close to the square shaft 51 with a second connecting piece 61 for controlling the number of times the counter 6 counts. A second connecting position 611 is provided on the surface of the second connecting piece 61 .

[0027] In this embodiment, the first connection position 541 and the second connection position 611 are connected via a pull wire 7 , and the pull wire 7 and the first connection position 541 and the second connection position 611 are fixed via screws.

[0028] How it works

[0029] During specific use, the operator turns the knob switch 4. When the molded case circuit breaker 3 is closed, the square shaft 51 rotates, and the first connecting piece 54 on the square shaft 51 drives the pull wire 7, which drives the second connecting piece 61 installed on the mechanical counter 6. Each time the circuit breaker is closed, the count is increased by one.

[0030] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A switch operating mechanism for a low-voltage drawer cabinet, comprising a drawer body (1), characterized in that: An installation cavity (2) is provided in the drawer body (1), a molded case circuit breaker (3) is installed in the installation cavity (2), a knob switch (4) is rotatably connected to the front end surface of the drawer body (1), and the knob switch (4) and the molded case circuit breaker (3) are connected via a switch operating mechanism (5), a counter (6) is fixedly installed on one side of the molded case circuit breaker in the installation cavity (2), and the counter (6) and the switch operating mechanism (5) are connected via a pull wire (7).

2. The switch operating mechanism for a low-voltage drawer cabinet according to claim 1, characterized in that: The switch operating mechanism (5) comprises a square shaft (51), a fixing frame (52) and an auxiliary operating mechanism (53); the fixing frame (52) is fixedly installed in the installation cavity (2); one end of the square shaft (51) is connected to the rear end of the knob switch (4); the other end of the square shaft (51) passes through the fixing frame (52) and is connected to the molded case circuit breaker (3); an auxiliary operating mechanism (53) is installed on one side of the fixing frame (52) in the installation cavity (2), and the auxiliary operating mechanism (53) is connected to the square shaft (51) via a driving member (55).

3. The switch operating mechanism for a low-voltage drawer cabinet according to claim 2, characterized in that: A rotation opening (521) is provided in the middle of the surface of the fixing frame (52), and a square shaft (51) is rotatably connected in the rotation opening (521).

4. The switch operating mechanism for a low-voltage drawer cabinet according to claim 3, characterized in that: A first connecting piece (54) is fixedly connected to the surface of the square shaft (51) between the fixing frame (52) and the molded case circuit breaker (3), and a first connecting position (541) is provided on the surface of the first connecting piece (54).

5. The switch operating mechanism for a low-voltage drawer cabinet according to claim 1, characterized in that: The counter (6) is rotatably connected to a side close to the square shaft (51) with a second connecting piece (61) for controlling the number of times the counter (6) counts. A second connecting position (611) is provided on the surface of the second connecting piece (61).

6. The switch operating mechanism for a low-voltage drawer cabinet according to claim 4, characterized in that: The first connection position (541) and the second connection position (611) are connected via a pull line (7).

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