Interlocking structure and electrical equipment thereof
By introducing an interlocking structure into the high-voltage switchgear, the interlocking plate and transmission components work together to achieve interlocking protection, preventing accidental disassembly of the cabinet door, improving equipment safety and visual judgment, and solving the problem of accidental cabinet door operation.
Patent Information
- Application Number
- CN202520424166.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In large electrical equipment such as high-voltage switchgear, the lack of interlocking protection function for the cabinet doors may cause operators to accidentally disassemble the cabinet doors while the equipment is switched on, posing a serious safety hazard.
An interlocking structure was designed, including an interlocking plate and a transmission component. The interlocking plate is switched between two states, namely, blocked and open fasteners, by an operating mechanism to achieve the interlocking protection function. This ensures that the cabinet door cannot be disassembled when the circuit is closed, and can be easily disassembled when grounded.
It enables the prevention of accidental disassembly of cabinet doors in high-voltage switchgear, improving safety, and allows operators to intuitively judge the equipment status through visualization functions.
Smart Images
Figure CN223977832U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of equipment interlocking technology, and in particular to interlocking structures and their electrical equipment. Background Technology
[0002] In large electrical equipment, such as high-voltage switchgear, the working environment is under high voltage. To ensure operational safety, operators must strictly follow the operating procedures, open the cabinet door, and carry out internal operations.
[0003] However, due to the lack of interlock protection function, the cabinet door is prone to being accidentally disassembled by operators while the equipment is powered on, which poses a great safety hazard. Utility Model Content
[0004] The purpose of this utility model is to provide an interlocking structure and its electrical equipment to realize the interlocking protection function, prevent operators from accidentally disassembling the cabinet door when the equipment is in the closed state, and improve safety.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] An interlocking structure for locking and unlocking a cabinet door, the cabinet door being detachably mounted on the body by fasteners, comprising:
[0007] An interlocking plate is slidably connected to the cabinet door, and the interlocking plate has a first state of covering the fastener and a second state of opening the fastener;
[0008] A transmission component, one end of which is connected to the interlocking plate, and the other end of which is connected to the operating mechanism. When the operating mechanism switches to the closed state, it can drive the transmission component to place the interlocking plate in the first state; when the operating mechanism switches to the grounded state, it can drive the transmission component to place the interlocking plate in the second state.
[0009] As an alternative to the interlocking structure, the interlocking plate has at least two blocking parts, each of which can block the corresponding fastener.
[0010] As an alternative to the interlocking structure, the transmission component is flexible.
[0011] As an alternative to the interlocking structure, the interlocking structure further includes a support sleeve, which is sleeved on the transmission component.
[0012] As an alternative to the interlocking structure, one end of the support sleeve is screwed onto the operating mechanism.
[0013] As an alternative to the interlocking structure, the transmission component is a rigid structure.
[0014] As an alternative to the interlocking structure, the two ends of the transmission member are respectively hinged to the interlocking plate and the operating mechanism.
[0015] Electrical equipment, including operating mechanism, body, cabinet door and interlocking structure as described in any of the above schemes.
[0016] As an optional solution for electrical equipment, the cabinet door is provided with a limiting groove. When the interlocking plate is in the second state, the interlocking plate is placed in the limiting groove, and the shape of the limiting groove matches the shape of the interlocking plate.
[0017] As an optional solution for electrical equipment, the interlocking plate is provided with a sliding part, and the cabinet door is provided with a sliding groove, and the sliding part can slide within the sliding groove.
[0018] Beneficial effects:
[0019] In this invention, the cabinet door is fixed to the main body by multiple bolts. The interlocking plate is a rectangular plate. When the operating mechanism is closed, the movable plate on the operating mechanism drives the interlocking plate, causing the interlocking plate to cover the fasteners. This prevents operators from using tools to remove the fasteners, ensuring that the cabinet door cannot be disassembled while the electrical equipment is closed, and thus preventing any operation on the internal structure of the cabinet. Furthermore, when the operating mechanism is grounded, the movable plate on the operating mechanism drives the interlocking plate in the opposite direction, exposing the fasteners. This allows operators to easily disassemble the fasteners with tools, thereby enabling the disassembly of the cabinet door and operation on the internal structure of the cabinet. This interlocking structure achieves the interlocking function by switching the state of the interlocking plate through the action of the operating mechanism. It also prevents operators from accidentally disassembling the cabinet door while the equipment is closed, improving safety. In addition, operators can directly determine the state of the operating mechanism by observing the state of the interlocking plate, achieving a visualization function. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the electrical equipment provided in this embodiment of the present invention when the interlocking plate is in the first state;
[0021] Figure 2 This is a schematic diagram of the electrical equipment provided in an embodiment of the present invention when the interlocking plate is in the second state.
[0022] In the picture:
[0023] 100. Cabinet door; 110. Fastener; 120. Limiting groove; 200. Body; 300. Operating mechanism;
[0024] 1. Interlocking plate; 11. Shielding part; 2. Transmission component; 3. Support sleeve. Detailed Implementation
[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0028] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0029] Please see the appendix Figure 1 and attached Figure 2The first aspect of this embodiment relates to an interlocking structure that can be used for locking and unlocking a cabinet door 100, such as a switchgear. In this embodiment, the cabinet door 100 is detachably mounted on the body 200 by fasteners 110. The interlocking structure includes an interlocking plate 1 and a transmission member 2. The interlocking plate 1 is slidably connected to the cabinet door 100 and has a first state that covers the fasteners 110 and a second state that opens the fasteners 110. One end of the transmission member 2 is connected to the interlocking plate 1, and the other end of the transmission member 2 is connected to an operating mechanism 300. When the operating mechanism 300 switches to the closed state, the operating mechanism 300 can drive the transmission member 2 to place the interlocking plate 1 in the first state. When the operating mechanism 300 switches to the grounded state, the operating mechanism 300 can drive the transmission member 2 to place the interlocking plate 1 in the second state.
[0030] In this embodiment, the fastener 110 can be a common bolt. The cabinet door 100 is fixed to the body 200 by multiple bolts. The interlocking plate 1 is a rectangular plate. When the operating mechanism 300 is closed, the movable plate on the operating mechanism 300 drives the interlocking plate 1, so that the interlocking plate 1 can cover the fastener 110 accordingly. At this time, the operator cannot use tools to disassemble the fastener 110, ensuring that the entire electrical equipment cannot be operated or disassembled when the circuit is closed, and naturally, the internal structure of the cabinet cannot be operated. Furthermore, when the operating mechanism 300 is grounded, the movable plate on the operating mechanism 300 further drives the interlocking plate 1 in the opposite direction, so that the interlocking plate 1 can open the fastener 110 and expose the fastener 110, thereby facilitating the operator to disassemble the fastener 110 with tools, thereby realizing the disassembly of the cabinet door 100 and the operation of the internal structure of the cabinet.
[0031] This interlocking structure achieves the interlocking function by switching the state of the interlocking plate 1 through the action of the operating mechanism 300. At the same time, it can also prevent operators from accidentally disassembling the cabinet door 100 when the equipment is closed, thus improving safety. In addition, operators can directly observe the state of the interlocking plate 1 to determine the state of the operating mechanism 300, thus achieving a visualization function.
[0032] Optionally, the interlocking plate 1 has at least two blocking parts 11, each blocking part 11 being able to block the corresponding fastener 110.
[0033] In this embodiment, two cabinet doors 100 are arranged sequentially along the vertical direction, and each cabinet door 100 is provided with a corresponding fastener 110. The interlocking plate 1 forms a blocking part 11 at each of its two vertical ends to block the fastener 110. Those skilled in the art will understand that the number of blocking parts 11 on a single interlocking plate 1 can be adaptively adjusted. The specific arrangement of multiple blocking parts 11 can be determined according to the layout of the fastener 110. If space permits, multiple interlocking plates 1 can be set, and the multiple interlocking plates 1 can be connected sequentially to realize the linkage of multiple interlocking plates 1.
[0034] Optionally, the transmission component 2 is flexible.
[0035] Specifically, the transmission component 2 can be made of steel cable. The steel cable is flexible, but it is not stretchable in its extension direction, so it can reciprocate to drive the interlocking plate 1 to move.
[0036] In one embodiment of this invention, the transmission component 2 is flexible, enabling it to adapt to various layout configurations between the operating mechanism 300 and the cabinet door 100, thereby improving adaptability.
[0037] Furthermore, the interlocking structure also includes a support sleeve 3, which is fitted onto the transmission component 2.
[0038] In this embodiment, the support sleeve 3 can be made of non-metallic insulating material, which has a certain high voltage resistance. The support sleeve 3 is sleeved on the transmission component 2 to protect the transmission component 2.
[0039] Furthermore, one end of the support sleeve 3 is screwed onto the operating mechanism 300.
[0040] In this embodiment, the support sleeve 3 is installed on the non-moving parts of the operating mechanism 300 by bolts. The specific installation position can be determined according to the structure of the operating mechanism 300 and the assembly layout of the parts.
[0041] Optionally, the transmission component 2 is a rigid structure. Both ends of the transmission component 2 are hinged to the interlocking plate 1 and the operating mechanism 300, respectively.
[0042] In another embodiment of this invention, the transmission component 2 can be a rigid rod. By hinged to the interlocking plate 1 and the operating mechanism 300 at both ends of the transmission component 2, the transmission control of the movable plate of the operating mechanism 300 to the interlocking plate 1 can be realized.
[0043] The second aspect of this embodiment also relates to an electrical device, which includes an operating mechanism 300, a body 200, a cabinet door 100, and an interlocking structure thereof.
[0044] Electrical equipment based on the above interlocking structure can achieve interlocking protection functions, avoid operator misoperation, and improve safety.
[0045] Optionally, the cabinet door 100 is provided with a limiting groove 120. When the interlocking plate 1 is in the second state, the interlocking plate 1 is placed in the limiting groove 120, and the shape of the limiting groove 120 matches the shape of the interlocking plate 1.
[0046] In this embodiment, the size of the limiting groove 120 is slightly larger than the size of the interlocking plate 1. The limiting groove 120 can stably place the interlocking plate 1 inside it, thereby preventing the interlocking plate 1 from acting in the opposite direction to the transmission component 2 due to other factors, thus affecting the position of the movable plate on the operating mechanism 300.
[0047] Optionally, the interlocking plate 1 is provided with a sliding part, and the cabinet door 100 is provided with a sliding groove, and the sliding part can slide in the sliding groove.
[0048] Specifically, the sliding part can be a slide rail, and a strip-shaped slide groove is provided on the cabinet door 100 to ensure the accuracy of the movement direction of the interlocking plate 1.
[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An interlocking structure for locking and unlocking a cabinet door (100) which is detachably installed on a body (200) by a fastener (110), characterized in that, The interlocking structure comprises: an interlocking plate (1) which is in sliding connection with the cabinet door (100), the interlocking plate (1) having a first state of shielding the fastener (110) and a second state of opening the fastener (110); a transmission member (2) which is connected to the interlocking plate (1) at one end and connected to an operating mechanism (300) at the other end, when the operating mechanism (300) is switched to a closed state, the operating mechanism (300) can drive the transmission member (2) to place the interlocking plate (1) in the first state; when the operating mechanism (300) is switched to a grounded state, the operating mechanism (300) can drive the transmission member (2) to place the interlocking plate (1) in the second state.
2. The interlocking structure of claim 1, wherein, The interlocking plate (1) has at least two shielding portions (11), each shielding portion (11) can shield the corresponding fastener (110).
3. The interlocking structure of claim 1, wherein, The transmission member (2) has flexibility.
4. The interlocking structure according to claim 3, wherein The interlocking structure further comprises a supporting sleeve (3) which is sleeved on the transmission member (2).
5. The interlocking structure of claim 4, wherein, One end of the supporting sleeve (3) is screwed on the operating mechanism (300).
6. The interlocking structure of claim 1, wherein, The transmission member (2) is of rigid structure.
7. The interlocking structure of claim 6, wherein, Both ends of the transmission member (2) are respectively hinged to the interlocking plate (1) and the operating mechanism (300).
8. An electric appliance device characterized by The interlocking structure comprises an operating mechanism (300), a body (200), a cabinet door (100) and the interlocking structure according to any one of claims 1-7.
9. The electrical appliance of claim 8, wherein, The cabinet door (100) is provided with a limiting groove (120), when the interlocking plate (1) is placed in the second state, the interlocking plate (1) is placed in the limiting groove (120), the shape of the limiting groove (120) matches the shape of the interlocking plate (1).
10. The appliance of claim 8, wherein, The interlocking plate (1) is provided with a sliding portion, the cabinet door (100) is provided with a sliding groove, and the sliding portion can slide in the sliding groove.