Program lock mechanism for circuit breaker switch of environment-friendly gas cabinet

Abstract

The utility model discloses a program lock mechanism for an environment-friendly gas cabinet circuit breaker switch, and relates to the technical field of environment-friendly gas cabinets. The program lock comprises a U-shaped mounting seat, a program lock body, a program lock rod, a connecting plate, a U-shaped connecting plate and an L-shaped limiting plate. Through the arrangement of the U-shaped mounting seat and the U-shaped connecting plate, the original structure is not damaged, the adaptability is good, and popularization and use are convenient; the L-shaped limiting plate directly limits the position between the triangular block and the manual switching-on button, so that the manual switching-on button cannot be pressed, switching-on operation cannot be realized, and the structure is simple; after being limited by the L-shaped limiting plate, the cam at the rear part can be blocked, so that violent action on the cam is prevented; and through the arrangement of the sliding stable limiting plate with the limiting kidney-shaped hole, transverse movement can be kept stable, the structural strength is high, and stability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental protection gas cabinets, and particularly relates to a program lock mechanism for a circuit breaker switch of an environmental protection gas cabinet. Background Art

[0002] An environmental protection gas cabinet is a device that uses environmental protection gas as an insulating medium, aiming to reduce the impact on the environment and improve safety. This device is widely used in the power system, especially in occasions where high insulation and low maintenance are required. The design and manufacture of environmental protection gas cabinets follow strict environmental protection standards to ensure that they do not harm the environment and human health during operation.

[0003] A program lock, also known as an anti-misoperation program lock, is a safety protection device. This lock can force operators to strictly follow the specified safety operation procedures to operate electrical equipment, avoiding safety risks caused by misoperation of electrical equipment. For an SF6 ordinary environmental protection gas cabinet, a program lock with a locking pin is used. The locking pin顶住 the cam of the operating shaft to prevent the cam from rotating, thereby making it impossible to perform opening and closing operations to achieve the purpose of power consumption. Another example is the interlocking mechanism for adding a program lock to an environmental protection gas cabinet disclosed in CN216562827U. Specifically, it provides a program lock in which the locking pin can drive the closing locking plate to move horizontally while locking the cam, covering the top of the cam. In essence, it still improves on the cam structure. Therefore, this technical solution proposes a program lock mechanism with a simpler structure based on the existing SF6 ordinary environmental protection gas cabinet. Summary of the Utility Model

[0004] The utility model provides a program lock mechanism for a circuit breaker switch of an environmental protection gas cabinet, which solves the above problems.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] A program lock mechanism for a circuit breaker switch of an environmental protection gas cabinet of the utility model includes being installed inside the outer panel of the circuit breaker cabinet of the environmental protection gas cabinet, including a "U"-shaped mounting seat fixedly installed with the fixed plate inside the circuit breaker cabinet, a program lock body fixedly installed on the surface of the "U"-shaped mounting seat by bolts, a program lock rod that moves horizontally through the insertion of a key into a lock hole inside the program lock body, a connecting plate installed at the left end of the program lock rod, a "C"-shaped connecting plate installed in front of the connecting plate, and an L-shaped limiting plate arranged at the bottom of the "C"-shaped connecting plate;

[0007] The L-shaped limiting plate deflects and limits the triangular block on the side of the manual closing button after moving horizontally forward, and the inclined surface of the triangular block抵触 the downward pressure of the cam.

[0008] Further, a receiving space is formed between the "U"-shaped mounting base and the fixed plate inside the circuit breaker cabinet. A sliding stability limiting plate is fixedly installed at the rear of the connecting plate, and a limiting waist-shaped hole corresponding to the fixed mounting bolt on the surface of the program lock body is arranged on the surface of the sliding stability limiting plate.

[0009] Further, the program lock body passes through the outer panel and is provided with a program lock cover; the manual closing button passes through the outer panel and is provided with a manual closing button cover.

[0010] The utility model has the following beneficial effects compared with the prior art:

[0011] (1) By setting the "U"-shaped mounting base and the "C"-shaped connecting plate, the utility model does not damage the original structure, has good adaptability, and is convenient for popularization and use;

[0012] (2) The utility model directly limits the position between the triangular block and the manual closing button through the L-shaped limiting plate, so that the manual closing button cannot be pressed, and thus the closing operation cannot be realized. The structure is simple;

[0013] (3) After being limited by the L-shaped limiting plate, the utility model can also block the cam at the rear to prevent violent action on the cam;

[0014] (4) By setting the sliding stability limiting plate with a limiting waist-shaped hole, the utility model can keep the lateral movement stable, has high structural strength and good stability.

[0015] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of a program lock mechanism for an environmental gas cabinet circuit breaker switch in a specific embodiment of the utility model installed in an environmental gas cabinet;

[0018] Figure 2 For Figure 1 it is a schematic structural diagram after removing the outer panel in

[0019] Figure 3 For Figure 2 it is a partial enlarged view of position A in

[0020] Figure 4 It is a position relationship diagram of the triangular block and the cam of the manual closing button cover in the environmental protection gas cabinet;

[0021] Figure 5 It is a structural schematic diagram of the program lock mechanism of the present technical solution after removing the "凵"-shaped mounting seat;

[0022] Figure 6 For Figure 5 It is a structural schematic diagram after removing the program lock body and the program lock rod in

[0023] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0024] 1 - Circuit breaker cabinet, 101 - Outer panel, 102 - Manual closing button cover, 1021 - Manual closing button, 1022 - Triangular block, 103 - Program lock cover, 1031 - Program lock body, 1032 - Program lock rod, 1033 - Connecting plate, 1034 - "匚"-shaped connecting plate, 1035 - L-shaped limiting plate, 1036 - Lock hole, 1037 - Sliding stable limiting plate, 1038 - Limiting waist-shaped hole, 1039 - "凵"-shaped mounting seat, 104 - Manual opening button cover, 1041 - Manual opening button, 105 - Cam. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "surface", "left side", "end", "front side", "bottom", "lateral", etc. indicating the orientation or position relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] Please refer to Figure 1-6As shown in the figure, a program lock mechanism for an environmental protection gas cabinet circuit breaker switch of the present utility model is used in an SF6 ordinary environmental protection gas cabinet to replace the existing program lock. The program lock mechanism is installed inside the outer panel 101 of the circuit breaker cabinet 1 of the environmental protection gas cabinet, and includes a "U"-shaped mounting seat 1039 fixedly installed with the fixed plate inside the circuit breaker cabinet 1, a program lock body 1031 fixedly installed on the surface of the "U"-shaped mounting seat 1039 by bolts, a program lock rod 1032 that moves horizontally by rotating a key inserted into a lock hole 1036 inside the program lock body 1031, a connecting plate 1033 installed at the left end of the program lock rod 1032, a "C"-shaped connecting plate 1034 installed on the front side of the connecting plate 1033, and an L-shaped limiting plate 1035 arranged at the bottom of the "C"-shaped connecting plate 1034; the opening of the corresponding "C"-shaped connecting plate 1034 faces outward, which can not affect the linkage rod vertically arranged inside the environmental protection gas cabinet, and this linkage rod is the existing structure and setting inside the SF6 ordinary environmental protection gas cabinet; the L-shaped limiting plate 1035 presses and limits the side of the triangular block 1022 of the manual closing button 1021 after moving horizontally forward, and the inclined surface of the triangular block 1022 abuts against the lower pressure of the cam 105. Since the L-shaped limiting plate 1035 is arranged between the scraping edge of the manual closing button 1021 and the triangular block 1022, direct pressing will be restricted, and the L-shaped limiting plate 1035 can block the cam 105 at the back to prevent violent operation of the cam 105.

[0028] As Figure 3 shown, specifically inside the corresponding SF6 ordinary environmental protection gas cabinet, when the manual closing button 1021 is pressed, the triangular block 1022 on it abuts against the cam 105 and then deflects, and the closing action is realized through linkage; the opening action is realized by pressing the manual opening button 1041; the existing schemes all perform safety control by abutting against the cam 105, and there are the disadvantages described in the background technology; in order to ensure safety, only the manual closing button 1021 needs to be limited, and it can be ensured that the overall environmental protection gas cabinet cannot be directly controlled to close by the manual opening button 1041, thus ensuring safety; there is no safety risk in the opening state. Therefore, the present technical solution proposes a program lock mechanism for an environmental protection gas cabinet circuit breaker switch starting from the limit of the manual opening button 1041.

[0029] Among them, the open side of the "凵"-shaped mounting seat 1039 faces the inner fixing plate of the circuit breaker cabinet 1; a receiving space is formed between the "凵"-shaped mounting seat 1039 and the inner fixing plate of the circuit breaker cabinet 1, which can accommodate the components existing in the original positions in the environmentally friendly gas cabinet without occupying their original spaces. A sliding stable limiting plate 1037 is fixedly installed at the rear of the connecting plate 1033, and a limiting waist-shaped hole 1038 corresponding to the fixing bolts on the surface of the program lock body 1031 is provided on the surface of the sliding stable limiting plate 1037; through the sliding stable limiting plate 1037 with the limiting waist-shaped hole 1038, when the L-shaped limiting plate 1035 and the "匚"-shaped connecting plate 1034 move forward, they can maintain a stable state and will not generate jitter and cause deviation.

[0030] Among them, the program lock body 1031 passes through the outer panel 101 and a program lock cover 103 is installed; the manual closing button 1021 passes through the outer panel 101 and a manual closing button cover 102 is installed; the settings of the lock cover and the button cover 102 can prevent dust; the manual opening button 1041 passes through the outer panel 101 and a manual opening button cover 104 is installed.

[0031] Based on the original environmentally friendly gas cabinet, this technical solution, through the settings of the "凵"-shaped mounting seat and the "匚"-shaped connecting plate, does not damage the original structure, has good adaptability, and is convenient for popularization and use; by directly limiting the triangular block and the manual closing button through the L-shaped limiting plate, the manual closing button cannot be pressed, so the closing operation cannot be realized, and the structure is simple; after being limited by the L-shaped limiting plate, it can also block the cam at the rear to prevent violent operation on the cam; through the setting of the sliding stable limiting plate with the limiting waist-shaped hole, the lateral movement can be kept stable, the structural strength is high, and the stability is good.

[0032] The above-disclosed preferred embodiments of the present invention are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A program lock mechanism for an environmental gas cabinet circuit breaker switch, installed inside an outer panel (101) of a circuit breaker cabinet (1) of an environmental gas cabinet, characterized in that: It includes a "U"-shaped mounting seat (1039) fixedly installed on the inner fixing plate of the circuit breaker cabinet (1), a program lock body (1031) fixedly installed on the surface of the "U"-shaped mounting seat (1039) by bolts, a program lock rod (1032) that is horizontally moved by turning a key inserted into a lock hole (1036) inside the program lock body (1031), a connecting plate (1033) installed at the left end of the program lock rod (1032), a "C"-shaped connecting plate (1034) installed on the front side of the connecting plate (1033), and an L-shaped limiting plate (1035) arranged at the bottom of the "C"-shaped connecting plate (1034); After the L-shaped limiting plate (1035) moves horizontally forward, it deflects and limits the triangular block (1022) on the side of the manual closing button (1021), and the inclined surface of the triangular block (1022) presses against and contacts the cam (105).

2. A program lock mechanism for an environmentally friendly gas cabinet circuit breaker switch according to claim 1, characterized in that: A receiving space is formed between the "U"-shaped mounting seat (1039) and the inner fixing plate of the circuit breaker cabinet (1). A sliding stable limiting plate (1037) is fixedly installed at the rear of the connecting plate (1033), and a limiting waist-shaped hole (1038) corresponding to the fixing bolts on the surface of the program lock body (1031) is arranged on the surface of the sliding stable limiting plate (1037).

3. A program lock mechanism for an environmentally friendly gas cabinet circuit breaker switch according to claim 1, characterized in that: The program lock body (1031) passes through the outer panel (101) and a program lock cover (103) is installed; the manual closing button (1021) passes through the outer panel (101) and a manual closing button cover (102) is installed.

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