Electric cabinet emergency switch

Abstract

The utility model discloses an electric cabinet emergency switch, which comprises an emergency switch box, an arc-shaped conducting strip, a rotating frame, a linkage rod assembly, a driving connecting rod, a ratchet wheel and a pawl, and is characterized in that the middle part of the arc-shaped conducting strip is rotatably arranged in the emergency switch box; circuit on-off conducting strips matched with the arc-shaped conducting strips are arranged at the two opposite ends of the rotating frame respectively, and the middle part of the rotating frame is rotatably arranged above the arc-shaped conducting strips. The power distribution cabinet overcomes the defect that in the prior art, an emergency switch is generally arranged outside the power distribution cabinet, so that emergency turn-off of the power distribution cabinet is conveniently achieved, and generally, the power distribution cabinet can be restarted only by pressing. In the maintenance process of the power distribution cabinet, casualties can be caused if the power distribution cabinet is mistakenly touched and started. Therefore, the electric cabinet emergency switch provided by the utility model can lock the emergency switch after the power distribution cabinet is turned off emergently so as to prevent mistaken touch.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to an emergency switch for an electrical cabinet. Background Technology

[0002] A switch cabinet is an electrical device in which external power lines first enter the main control switch inside the cabinet, and then enter the branch control switches. Each branch circuit is configured according to its needs. Examples include instruments, automatic control systems, motor magnetic switches, various AC contactors, etc. Some switch cabinets also have high-voltage and low-voltage compartments and high-voltage busbars, such as those in power plants. Some also have underfrequency load shearing features to protect the main equipment.

[0003] Emergency switches are typically installed on the outside of distribution cabinets to facilitate emergency shutdown; they can usually be restarted simply by pressing a button. Accidental activation during maintenance of the distribution cabinet could result in injury or death.

[0004] Therefore, providing an emergency switch for the power distribution cabinet that can be locked after the cabinet is shut down in an emergency to prevent accidental activation is a problem that this utility model urgently needs to solve. Utility Model Content

[0005] To address the aforementioned technical problems, the purpose of this utility model is to overcome the limitations of existing technologies where emergency switches are typically installed on the outside of distribution cabinets for easy emergency shutdown, and restarting is usually achieved simply by pressing a button. However, accidental activation during cabinet maintenance can lead to injury or death. Therefore, this utility model provides an emergency switch that can be locked after the distribution cabinet has been shut down in an emergency to prevent accidental activation.

[0006] To achieve the above objectives, this utility model provides an emergency switch for an electrical cabinet. The emergency switch includes: an emergency switch box, an arc-shaped conductive sheet, a rotating frame, a linkage assembly, a drive link, a ratchet, and a pawl. The middle portion of the arc-shaped conductive sheet is rotatably disposed within the emergency switch box, and its opposite ends are respectively provided with circuit-connecting conductive sheets adapted to the arc-shaped conductive sheet. The middle portion of the rotating frame is rotatably disposed above the arc-shaped conductive sheet. The linkage assembly is movably disposed at the lower end of the rotating frame. The drive link is rotatably disposed on one side of the rotating frame and can drive the rotating frame to rotate, thereby driving the arc-shaped conductive sheet to rotate around its rotation axis through the linkage assembly. A ratchet is coaxially disposed at the rotation axis of the drive link. The pawl is rotatably engaged with one side of the ratchet by a torsion spring, and a toggle lever is horizontally disposed on the side away from the ratchet.

[0007] Preferably, the drive linkage is rotatably mounted on one side of the emergency switch box, and a knob is coaxially mounted on the outer side of the ratchet.

[0008] Preferably, a damping bearing is provided at the rotatable connection between the drive linkage and the emergency switch box.

[0009] Preferably, the knob is surrounded by anti-slip texture.

[0010] Preferably, the linkage assembly includes: a linkage body, a first abutment block, a limiting strip groove, and an elastic element. A limiting rod is provided at the lower end of the rotating frame. The linkage body has a limiting strip groove adapted to the limiting rod along its length direction, and a first abutment block is provided at its lower end. The elastic element is sleeved on the linkage body, and one end of the elastic element abuts or is fixed to the first abutment block, and the other end abuts or is fixed to the limiting rod. The arc-shaped conductive sheet has second abutment blocks on opposite sides that can abut against the first abutment block.

[0011] Preferably, the drive link is provided with a V-shaped bracket, and the opposite ends of the V-shaped bracket can respectively abut against the opposite sides of the upper end of the link body.

[0012] Preferably, the emergency switch box is provided with several wiring ports that are electrically connected to the circuit switching conductive sheet.

[0013] According to the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: When an emergency disconnect switch is required in a circuit, this application rotates the drive linkage to drive the rotating frame to rotate, thereby driving the arc-shaped conductive sheet to rotate around its axis through the linkage rod assembly, thus separating the two ends of the arc-shaped conductive sheet from the on / off conductive sheet, thereby disconnecting the circuit; due to the engaging design of the ratchet and pawl, the user cannot rotate the rotating frame in reverse after disconnecting the circuit, thereby preventing the user from accidentally activating it. When it is necessary to close the circuit, the pawl and ratchet are separated by moving the lever, and then the rotating frame can be rotated to close the circuit; after disconnection, this device requires two steps to close the circuit, reducing the possibility of accidental circuit closure.

[0014] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a three-dimensional emergency switch for an electrical cabinet provided in a preferred embodiment of the present invention. Figure 1 .

[0017] Figure 2 This is a three-dimensional emergency switch for an electrical cabinet provided in a preferred embodiment of the present invention. Figure 2 .

[0018] Figure 3 This is a partial plan view of the emergency switch for the electrical cabinet provided in a preferred embodiment of this utility model.

[0019] Figure 4 This is a partial three-dimensional representation of an emergency switch for an electrical cabinet provided in a preferred embodiment of the present invention. Figure 1 .

[0020] Figure 5 This is a partial three-dimensional representation of an emergency switch for an electrical cabinet provided in a preferred embodiment of the present invention. Figure 2 .

[0021] Explanation of reference numerals in the attached drawings: 1-Emergency switch box; 101-Circuit switching conductive sheet; 2-Arc-shaped conductive sheet; 201-Second abutment block; 3-Rotating frame; 301-Limiting rod; 4-Linking rod assembly; 401-Linking rod body; 402-First abutment block; 403-Limiting strip groove; 404-Elastic element; 5-Drive linkage; 501-Damping bearing; 502-V-shaped frame; 6-Ratchet; 601-Knob; 7-Pawl; 8-Toggle lever; 9-Connecting port. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the utility model product is in use. These are merely for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component 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 the utility model. Furthermore, the terms "first," "second," and "third," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance. Additionally, the terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0026] Reference Figures 1-3 An emergency switch for an electrical cabinet includes: an emergency switch box 1, an arc-shaped conductive sheet 2, a rotating frame 3, a linkage assembly 4, a drive link 5, a ratchet 6, and a pawl 7. The middle portion of the arc-shaped conductive sheet 2 is rotatably disposed within the emergency switch box 1, and its opposite ends are respectively provided with circuit-connecting conductive sheets 101 adapted to the arc-shaped conductive sheet 2. The middle portion of the rotating frame 3 is rotatably disposed above the arc-shaped conductive sheet 2. The linkage assembly 4 is movably disposed at the lower end of the rotating frame 3. The drive link 5 is rotatably disposed on one side of the rotating frame 3 and can drive the rotating frame 3 to rotate, thereby driving the arc-shaped conductive sheet 2 to rotate around its rotation axis through the linkage assembly 4. The ratchet 6 is coaxially disposed at the rotation axis of the drive link 5. The pawl 7 is rotatably engaged with one side of the ratchet 6 by a torsion spring, and a toggle lever 8 is horizontally disposed on the side away from the ratchet 6.

[0027] In circuits requiring emergency disconnection, this application utilizes a rotating drive rod 5 to rotate the rotating frame 3, which in turn drives the arc-shaped conductive plate 2 to rotate around its axis via the linkage assembly. This causes the two ends of the arc-shaped conductive plate 2 to separate from the on / off conductive plate, thereby disconnecting the circuit. Due to the engaging design of the ratchet 6 and pawl 7, the user cannot rotate the rotating frame 3 in reverse after disconnecting the circuit, thus preventing accidental activation. To close the circuit, the user moves the toggle lever 8, disengaging the pawl 7 and ratchet 6, allowing the rotating frame 3 to be rotated to close the circuit. This device requires two steps to close the circuit after disconnection, reducing the possibility of accidental circuit closure.

[0028] Reference Figure 5 The drive linkage 5 is rotatably mounted on one side of the emergency switch box 1, and a knob 601 is coaxially mounted on the outer side of the ratchet 6.

[0029] This application uses a rotating knob 601 to drive the ratchet 6 and the drive linkage 5 to rotate.

[0030] Reference Figure 5 A damping bearing 501 is provided at the rotatable connection between the drive linkage 5 and the emergency switch box 1.

[0031] This application enhances the friction at the rotating connection of the drive link 5 by designing a damping bearing 501, thereby preventing the drive link 5 from rotating under the action of no external force and reducing the possibility of accidental circuit closure.

[0032] Reference Figure 5 The knob 601 is surrounded by anti-slip texture.

[0033] This application incorporates anti-slip textures to facilitate the use of the rotary knob 601.

[0034] Reference Figure 4 The linkage assembly 4 includes: a linkage body 401, a first abutment block 402, a limiting strip groove 403, and an elastic element 404. The lower end of the rotating frame 3 is provided with a limiting rod 301. The linkage body 401 has a limiting strip groove 403 adapted to the limiting rod 301 along its length direction, and a first abutment block 402 is provided at its lower end. The elastic element 404 is sleeved on the linkage body 401, and one end of it abuts or is fixed to the first abutment block 402, and the other end abuts or is fixed to the limiting rod 301. The arc-shaped conductive sheet 2 has a second abutment block 201 on each side that can abut against the first abutment block 402.

[0035] During the rotation of the rotating frame 3, the limiting rod 301 gradually compresses the elastic element 404 along the length of the limiting strip groove 403, thereby forcing the linkage rod body 401 to rotate around the axis of the limiting rod 301 and apply pressure to the other side of the arc-shaped conductive sheet 2, so as to drive the arc-shaped conductive sheet 2 to rotate around its rotation axis, thereby achieving contact or separation with the on / off guide sheet; the design of the first abutting block 402 and the second abutting block 201 is to prevent the lower end of the linkage rod body 401 from separating from the surface of the arc-shaped conductive sheet 2, which would cause the structure to lose its function; at the same time, this structure needs to overcome the rebound force of the elastic element 404 to achieve this, further reducing the possibility of accidental circuit closure.

[0036] Reference Figure 5 The drive link 5 is provided with a V-shaped bracket 502, and the two opposite ends of the V-shaped bracket 502 can respectively abut against the opposite sides of the upper end of the linkage body 401.

[0037] In this application, during the rotation of the drive link 5, the V-shaped bracket 502 drives the linkage body 401 to rotate.

[0038] Reference Figure 2The emergency switch box 1 is provided with several wiring ports 9 that are electrically connected to the circuit switching conductive sheet 101.

[0039] Users of this application can connect to devices that need to be controlled by the emergency switch via connection port 9.

[0040] When the device provided by this utility model is in use, in the event that the circuit needs to be disconnected in an emergency, the rotating drive rod 5 is rotated to drive the rotating frame 3 to rotate, thereby driving the arc-shaped conductive plate 2 to rotate around its axis through the linkage rod assembly, so that the two ends of the arc-shaped conductive plate 2 are disconnected from the on / off conductive plate, thus disconnecting the circuit. Due to the engaging design of the ratchet 6 and the pawl 7, the user cannot rotate the rotating frame 3 in reverse after disconnecting the circuit, thus preventing the user from accidentally activating it. When it is necessary to close the circuit, the pawl 7 and the ratchet 6 are separated by moving the toggle rod 8, and then the rotating frame 3 can be rotated to close the circuit. After disconnecting, the device requires two steps to close the circuit, reducing the possibility of accidental circuit closure.

[0041] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0042] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0043] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. An emergency switch for an electrical cabinet, characterized in that, The emergency switch cabinet includes: an emergency switch box (1), an arc-shaped conductive sheet (2), a rotating frame (3), a connecting rod assembly (4), a drive link (5), a ratchet (6), and a pawl (7). The middle part of the arc-shaped conductive sheet (2) is rotatably disposed inside the emergency switch box (1), and its opposite ends are respectively provided with circuit switching conductive sheets (101) adapted to the arc-shaped conductive sheet (2). The middle part of the rotating frame (3) is rotatably disposed above the arc-shaped conductive sheet (2). The moving rod assembly (4) is movably disposed at the lower end of the rotating frame (3). The driving link (5) is rotatably disposed on one side of the rotating frame (3) and can drive the rotating frame (3) to rotate so as to drive the arc-shaped conductive sheet (2) to rotate around its rotation axis through the moving rod assembly (4). A ratchet (6) is coaxially disposed at the rotation axis of the driving link (5). The pawl (7) is rotatably engaged on one side of the ratchet (6) by a torsion spring, and a lever (8) is horizontally disposed on the side away from the ratchet (6).

2. The emergency switch for an electrical cabinet according to claim 1, characterized in that, The drive linkage (5) is rotatably mounted on one side of the emergency switch box (1), and a knob (601) is coaxially mounted on the outside of the ratchet (6).

3. The emergency switch for an electrical cabinet according to claim 2, characterized in that, A damping bearing (501) is provided at the rotatable connection between the drive link (5) and the emergency switch box (1).

4. An emergency switch for an electrical cabinet according to claim 2, characterized in that, The knob (601) is surrounded by anti-slip texture.

5. An emergency switch for an electrical cabinet according to claim 1, characterized in that, The linkage assembly (4) includes: a linkage body (401), a first abutment block (402), a limiting strip groove (403), and an elastic element (404). The lower end of the rotating frame (3) is provided with a limiting rod (301). The linkage body (401) has a limiting strip groove (403) adapted to the limiting rod (301) along its length direction, and a first abutment block (402) is provided at its lower end. The elastic element (404) is sleeved on the linkage body (401), and one end of it abuts or is fixed to the first abutment block (402), and the other end abuts or is fixed to the rod body of the limiting rod (301). The arc-shaped conductive sheet (2) is provided with second abutment blocks (201) on opposite sides, which can abut against the first abutment block (402).

6. An emergency switch for an electrical cabinet according to claim 5, characterized in that, The drive link (5) is provided with a V-shaped bracket (502), and the two ends of the V-shaped bracket (502) can respectively abut against the two sides of the upper end of the linkage body (401).

7. An emergency switch for an electrical cabinet according to claim 1, characterized in that, The emergency switch box (1) is provided with several wiring ports (9) that are electrically connected to the circuit switching conductive sheet (101).

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