CN220543776U - Mechanical interlocking mechanism for grounding knife of rear door of switch cabinet - Google Patents
Mechanical interlocking mechanism for grounding knife of rear door of switch cabinet Download PDFInfo
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- CN220543776U CN220543776U CN202320894598.8U CN202320894598U CN220543776U CN 220543776 U CN220543776 U CN 220543776U CN 202320894598 U CN202320894598 U CN 202320894598U CN 220543776 U CN220543776 U CN 220543776U
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- 230000006872 improvement Effects 0.000 description 8
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Abstract
The application discloses switch cabinet back door grounding knife linkage mechanical locking mechanism, including locking subassembly and trigger module, locking subassembly sets up in the switch cabinet is internal, trigger module sets up on the switch cabinet door, locking subassembly is suitable for locking the internal earthing switch of switch cabinet and prevents it to break away from the ground connection state, trigger module is suitable for and cooperates with locking subassembly along with the closure of switch cabinet door, locking subassembly is suitable for and cooperates to break away from earthing switch and release the locking of earthing switch with trigger module, this mechanical locking mechanism reliability is higher, difficult trouble inefficacy appears, the probability that appears losing the shutting because of the operating force is great is lower.
Description
Technical Field
The application relates to the technical field of power equipment, in particular to a mechanical locking mechanism for a grounding knife linkage of a rear door of a switch cabinet.
Background
According to the five-prevention requirement of the high-voltage switch equipment, the back door of the 35kV high-voltage switch cabinet and the grounding knife are in locking relation. When the grounding knife is not in a closed grounding state, the rear door cannot be opened; the grounding knife cannot be opened when the rear door is not closed in the grounding knife closing state. The common locking mechanism in the market is generally in an electric appliance locking mode, and the locking relation is realized by controlling the extension and retraction of an electromagnetic lock rod beside an operation shaft through a rear door travel switch to stop the rotation of the operation shaft.
However, the latching mechanisms of existing switchgear have the following drawbacks: if the secondary control loop is powered off or the travel switch and the electromagnetic lock are in fault, the locking relation is disabled, the locking effect is poor, and the possibility that the locking of the grounding switch operation shaft is lost due to large operation force can occur when the electromagnetic lock rod is used for limiting the grounding switch operation shaft.
Disclosure of Invention
One object of the application is to provide a switch cabinet back door to earthing knife linkage mechanical locking mechanism that the reliability is higher, difficult trouble.
In order to achieve the above purpose, the technical scheme adopted in the application is as follows: the utility model provides a switch cabinet back door earthing knife linkage mechanical locking mechanism, includes locking component and trigger module, locking component sets up in the switch cabinet is internal, trigger module sets up on the switch cabinet door, locking component is suitable for the locking the internal earthing switch of switch cabinet prevents that it breaks away from the ground connection state, trigger module is suitable for with the closing of switch cabinet door with locking component cooperates, locking component is suitable for with trigger module cooperation breaks away from earthing switch and releases the locking to earthing switch.
As an improvement, the grounding switch is provided with a limit module, the limit module is arranged at the rotating shaft of the grounding switch and is coaxially connected with the grounding switch, and the limit module is suitable for synchronous rotation along with the grounding switch.
As an improvement, the locking assembly comprises a lock catch and an elastic resetting piece, a locking opening is formed in the limiting module, the lock catch is rotatably arranged on the switch cabinet body, the elastic resetting piece is suitable for enabling the lock catch to rotate and abut against the limiting module, and the lock catch is suitable for being matched and clamped with the locking opening and preventing the grounding switch from being separated from a grounding state.
As an improvement, the lock catch comprises a locking part and a collision part, the locking part and the collision part are respectively arranged at two ends of the lock catch, the locking part is suitable for being matched and clamped with the locking opening, and when the switch cabinet door is closed, the triggering module is suitable for pushing the collision part to enable the lock catch to rotate to be separated from the locking opening.
As an improvement, the locking assembly further comprises a locking seat, and after the locking part enters the locking opening, the abutting part is suitable for abutting against the locking seat to stop the locking part from moving.
As an improvement, the locking port comprises a first locking side, the locking part comprises a second locking side, the opening of the locking port faces to the opening direction of the grounding switch, the second locking side is suitable for being propped against the first locking side to prevent the limiting module from rotating, when the switch cabinet door is opened, the locking assembly is suitable for being matched and clamped with the limiting module to prevent the grounding switch from being separated from the grounding state, and the locking assembly is suitable for allowing the grounding switch to enter the grounding state.
As an improvement, the first locking side is arranged along the radial direction of the limit module, and the second locking side is tangent to the first locking side when the second locking side is abutted to the first locking side.
As an improvement, the trigger module comprises a top rod piece, a connecting end and a trigger end are arranged on the top rod piece, the connecting end is connected with the switch cabinet door, the trigger end extends to the outer side of the switch cabinet door, and when the switch cabinet door is closed, the trigger end is suitable for extending into the switch cabinet body.
As an improvement, when the switch cabinet door is closed, the ejector rod piece is suitable for enabling the locking part to rotate to the outer side of the limiting module and separate from the locking opening.
Compared with the prior art, the beneficial effect of this application lies in: the locking mechanism is of a mechanical linkage structure, the locking assembly can lock the opening and closing states of the grounding switch, and the control of the locking assembly is related to the opening and closing states of the switch cabinet door, so that the opening and closing states of the grounding switch and the opening and closing states of the switch cabinet door are mechanically linked, the operation of opening the cabinet door can be performed only when the grounding switch is grounded, the locking mechanism has higher reliability, the safety of the opening of the switch cabinet door is ensured, operators are protected from being injured, and meanwhile, the locking effect is stronger, and the locking capability is not easy to lose.
Drawings
FIG. 1 is a schematic view of a switch cabinet door according to a preferred embodiment of the present application when open;
FIG. 2 is a schematic view of the switch cabinet door according to a preferred embodiment of the present application when closed;
fig. 3 is a schematic view of the structure of the locking assembly and limit module cooperation according to a preferred embodiment of the present application.
In the figure: 1. a mounting frame; 2. a switch cabinet door; 3. a locking assembly; 31. locking; 311. a locking part; 3111. a second locking side; 312. a collision part; 32. an elastic reset piece; 33. a locking seat; 4. a top bar; 41. a connection end; 42. a trigger end; 5. a grounding switch; 51. a limit module; 511. a locking port; 5111. a first locking side; 52. and (3) rotating the shaft.
Detailed Description
The present application will be further described with reference to the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.
In the description of the present application, it should be noted that, for the azimuth terms such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific protection scope of the present application that the device or element referred to must have a specific azimuth configuration and operation, as indicated or implied.
It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
The terms "comprises" and "comprising," along with any variations thereof, in the description and claims of the present application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.
The application is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 3, a preferred embodiment of the present application includes a locking component 3 and a triggering module, the locking component 3 is disposed in a switch cabinet body, the triggering module is disposed on a switch cabinet door 2, a mounting frame 1 is disposed in the switch cabinet body, a grounding switch 5 is disposed on the mounting frame 1, the locking component 3 is suitable for locking the grounding switch 5 and preventing the grounding switch 5 from being separated from a grounding state, the triggering module is suitable for being matched with the locking component 3 along with closing of the switch cabinet door 2, the locking component 3 is suitable for being matched with the triggering module to separate from the grounding switch 5 and unlock the grounding switch 5, the triggering module is used for controlling the locking component 3 to unlock, after the locking component 3 is unlocked, the grounding switch 5 can be moved and switched, and the grounding switch 5 can be mechanically connected with the switching state of the switch cabinet door 2 by using mutual linkage among the grounding switch 5, the locking component 3 and the triggering module, so that compared with electric control locking of an electric appliance, faults and misoperation are not easy to occur.
The grounding switch 5 is provided with the limit module 51, the limit module 51 is arranged at the rotating shaft 52 of the grounding switch 5, the limit module 51 is coaxially connected with the grounding switch 5, the limit module 51 is suitable for synchronously rotating along with the grounding switch 5, the position of the limit module 51 can be flexibly adjusted and set along the rotating shaft 52, and the limit module is fixed on the rotating shaft 52 through a pin shaft, so that the grounding switch is suitable for the grounding switch 5 at different positions, and the space in the switch cabinet body is effectively utilized, so that the switch cabinet body with different structures is suitable for.
The locking assembly 3 comprises a lock catch 31 and an elastic reset piece 32, a locking opening 511 is formed in the limiting module 51, the lock catch 31 is rotatably arranged on the switch cabinet body, the elastic reset piece 32 is suitable for enabling the lock catch 31 to rotate and abut against the limiting module 51, the elastic reset piece 32 preferably uses a torsion spring, the elastic reset piece 32 enables the lock catch 31 to have a trend of changing towards a locking position, under the condition that the lock catch 31 is not blocked, locking can be automatically carried out, the lock catch 31 is suitable for being matched and clamped with the locking opening 511 and preventing the grounding switch 5 from being separated from a grounding state, rotation of the grounding switch 5 is prevented through the mode of clamping and matching of the lock catch 31 and the locking opening 511, and the locking assembly is simple in structure, convenient to process and high in stability.
Specifically, the lock catch 31 includes a locking portion 311 and an abutting portion 312, where the locking portion 311 and the abutting portion 312 are respectively disposed at two ends of the lock catch 31, the locking portion 311 is adapted to be engaged with the locking opening 511, and when the switch cabinet door 2 is closed, the triggering module is adapted to push the abutting portion 312 to make the lock catch 31 rotate to be separated from the locking opening 511, and the space occupied by the rotating locking structure under the same stroke is smaller, and meanwhile, the structure is more stable, and can bear a larger operation force and is not easy to deform.
The locking assembly 3 further comprises a locking seat 33, after the locking portion 311 enters the locking opening 511, the abutting portion 312 is suitable for abutting against the locking seat 33 to stop the locking portion 311, and the locking seat 33 cooperates with the elastic reset piece 32 to limit the abutting portion 312, so that the locking portion 311 can be stabilized in the locking opening 511, and locking stability is improved.
The locking port 511 comprises a first locking side 5111, the locking portion 311 comprises a second locking side 3111, the opening of the locking port 511 faces the opening direction of the grounding switch 5, the second locking side 3111 is suitable for abutting against the first locking side 5111 to prevent the limit module 51 from rotating, when the switch cabinet door 2 is opened, the locking assembly 3 is suitable for being matched with the limit module 51 to be clamped to prevent the grounding switch 5 from being separated from the grounding state, the locking assembly 3 is suitable for allowing the grounding switch 5 to enter the grounding state, the locking port 511 and the locking portion 311 are locked in one direction, and after locking, the grounding switch 5 is prevented from being separated from the grounding state, but the grounding switch 5 is prevented from entering the grounding state, and misoperation is avoided.
The first locking side 5111 is disposed along the radial direction of the limit module 51, and the second locking side 3111 is tangent to the first locking side 5111 when being abutted against the first locking side 5111, so that the first locking side 5111 and the second locking side 3111 are not easy to slip, have strong structural stability, and can bear larger operation force.
The triggering module comprises a push rod piece 4, a connecting end 41 and a triggering end 42 are arranged on the push rod piece 4, the connecting end 41 is connected with the switch cabinet door 2, the triggering end 42 extends to the outer side of the switch cabinet door 2, when the switch cabinet door 2 is closed, the triggering end 42 is suitable for extending into the switch cabinet body, and the push rod piece 4 is simple in structure and convenient to install.
When the switch cabinet door 2 is closed, the ejector rod piece 4 is suitable for enabling the locking part 311 to rotate to the outer side of the limit module 51 and separate from the locking opening 511, so that the locking part 311 can be completely separated from the limit module 51 without affecting the movement of the limit module 51, and interference caused by state switching of the grounding switch 5 is avoided.
The foregoing has outlined the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the present application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of protection of the present application is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a cubical switchboard back door is to earthing knife linkage mechanical locking mechanism which characterized in that: the switch cabinet comprises a locking assembly and a triggering module, wherein the locking assembly is arranged in the switch cabinet body, the triggering module is arranged on a switch cabinet door, the locking assembly is suitable for locking a grounding switch in the switch cabinet body and preventing the grounding switch from being separated from a grounding state, the triggering module is suitable for being matched with the locking assembly along with the closing of the switch cabinet door, and the locking assembly is suitable for being matched with the triggering module to be separated from the grounding switch and unlock the grounding switch.
2. The switchgear back door-to-earthing knife-linkage mechanical latching mechanism of claim 1, wherein: the grounding switch is provided with a limiting module, the limiting module is arranged at the rotating shaft of the grounding switch and is coaxially connected with the grounding switch, and the limiting module is suitable for synchronous rotation along with the grounding switch.
3. A switchgear back door-to-earthing knife-linkage mechanical latching mechanism as claimed in claim 2, wherein: the locking assembly comprises a lock catch and an elastic resetting piece, a locking opening is formed in the limiting module, the lock catch is rotatably arranged on the switch cabinet body, the elastic resetting piece is suitable for enabling the lock catch to rotate and prop against the limiting module, and the lock catch is suitable for being matched and clamped with the locking opening and preventing the grounding switch from being separated from a grounding state.
4. A switchgear back door-to-earthing knife-linkage mechanical latching mechanism as claimed in claim 3, wherein: the lock catch comprises a locking part and a collision part, wherein the locking part and the collision part are respectively arranged at two ends of the lock catch, the locking part is suitable for being matched and clamped with the locking opening, and when the switch cabinet door is closed, the triggering module is suitable for pushing the collision part to enable the lock catch to rotate and separate from the locking opening.
5. The switchgear back door-to-earthing knife-linkage mechanical latching mechanism as claimed in claim 4, wherein: the locking assembly further comprises a locking seat, and after the locking part enters the locking opening, the abutting part is suitable for abutting against the locking seat to stop the locking part from moving.
6. The switchgear back door-to-earthing knife-linkage mechanical latching mechanism as claimed in claim 4, wherein: the locking port comprises a first locking side, the locking part comprises a second locking side, the opening of the locking port faces to the opening direction of the grounding switch, the second locking side is suitable for being propped against the first locking side to prevent the limiting module from rotating, when the switch cabinet door is opened, the locking assembly is suitable for being matched and clamped with the limiting module to prevent the grounding switch from being separated from the grounding state, and the locking assembly is suitable for allowing the grounding switch to enter the grounding state.
7. The switchgear back door-to-earthing knife-linkage mechanical latching mechanism as claimed in claim 6, wherein: the first locking side is arranged along the radial direction of the limiting module, and the second locking side is tangent to the first locking side when the second locking side abuts against the first locking side.
8. The switchgear back door-to-earthing knife-linkage mechanical latching mechanism as claimed in claim 4, wherein: the triggering module comprises a top rod piece, a connecting end and a triggering end are arranged on the top rod piece, the connecting end is connected with the switch cabinet door, the triggering end extends to the outer side of the switch cabinet door, and when the switch cabinet door is closed, the triggering end is suitable for extending into the switch cabinet body.
9. The switchgear back door-to-earthing knife-linkage mechanical latching mechanism of claim 8, wherein: when the switch cabinet door is closed, the ejector rod piece is suitable for enabling the locking part to rotate to the outer side of the limiting module and separate from the locking opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320894598.8U CN220543776U (en) | 2023-04-20 | 2023-04-20 | Mechanical interlocking mechanism for grounding knife of rear door of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320894598.8U CN220543776U (en) | 2023-04-20 | 2023-04-20 | Mechanical interlocking mechanism for grounding knife of rear door of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220543776U true CN220543776U (en) | 2024-02-27 |
Family
ID=89969372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320894598.8U Active CN220543776U (en) | 2023-04-20 | 2023-04-20 | Mechanical interlocking mechanism for grounding knife of rear door of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220543776U (en) |
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2023
- 2023-04-20 CN CN202320894598.8U patent/CN220543776U/en active Active
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