Load switch double-locking device
By designing a double interlocking device for load switches, mechanical and electrical double interlocking is achieved using components such as interlocking boxes, limit rods, and interlocking plates. This solves the problems of complex structure and low safety and reliability of existing devices, and achieves a simple and safe interlocking effect.
Patent Information
- Application Number
- CN202423295659.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing load switch double interlocking devices are complex in structure, cumbersome to operate, and have low safety and reliability, making it difficult to achieve efficient mechanical and electrical double interlocking.
A dual interlocking device for a load switch was designed, comprising an interlocking box, a limit rod, an interlocking plate, an interlocking spring, an operating rod, a micro switch, and a transmission shaft. The device achieves mechanical and electrical dual interlocking by setting limit logic signal relationships, ensuring simple operation and safety.
It achieves both mechanical and electrical interlocking, which is easy to operate and highly safe, thus improving the safety and reliability of the load switch.
Smart Images
Figure CN223693015U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to load switch technical field, concretely is load switch double locking device. BACKGROUND
[0002] Load switch is the important equipment used on the outdoor overhead line in distribution network system, is used on the outdoor overhead line, provides the main equipment on the line, and its excellent performance of anti-aging, waterproof, moisture-proof ensures the reliable operation of the product in various environments. Load switch (LBS) refers to the switch device that can be closed, carried and opened under the current of normal circuit condition within the specified time. Load switch can be used to distribute electric energy, start asynchronous motor infrequently, protect power supply line and motor, and load switch is used in the power grid construction of all regions in the world, and load switch locking device is an important part in its operation, and the locking device can effectively prevent misoperation when the switch is operated, and the locking device can also be used for forced opening operation in emergency, and when the load switch does not operate effectively in actual use, the locking device can be operated, the loss of users caused by line fault is reduced, and the safety of power grid is ensured.
[0003] The prior art has the following problems:
[0004] The existing load switch double locking device has complex overall device structure, relatively troublesome operation, and relatively low safety and reliability, and is inconvenient for better work. UTILITY MODEL CONTENTS
[0005] In view of the defects of the prior art, the utility model provides a load switch double locking device to solve the problems in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: load switch double locking device, including the box, the box top fixed mounting has the fixed seal module, the box one side fixed mounting has the locking box, the locking box inside is provided with the limit rod, the box one side is provided with manual opening and closing operation lever, the locking box inside is provided with the locking plate, the locking box inside is provided with the locking spring, the locking plate one end fixedly connected with the operating lever, the locking box upper fixed mounting has the microswitch, the locking plate is provided with the transmission shaft.
[0007] As a preferred technical scheme of the utility model, the fixed seal module is provided with multiple groups, and is fixedly installed on the top of the box through bolts.
[0008] As a preferred technical scheme of the utility model, the locking box is fixedly installed on the side of the box through bolts.
[0009] As a preferred technical scheme of the utility model, the limiting rod is connected with the transmission shaft, and the limiting rod is movably inserted with the locking box.
[0010] As a preferred technical scheme of the utility model, the manual opening and closing handle is rotatably connected with the box body.
[0011] As a preferred technical scheme of the utility model, the locking plate is rotatably connected with the locking box through the rotating shaft, and the locking plate is abutted with one side of the micro switch through rotation.
[0012] Compared with the prior art, the utility model provides a double locking device of load switch, which has the following advantages
[0013] Beneficial effects:
[0014] The double locking device of load switch is composed of the locking box, the limiting rod, the locking plate, the locking spring, the operating rod, the micro switch and the transmission shaft, and the function of the locking device can be realized by the combination of the seven components and the set limiting logic signal relationship. The operating rod can be freely pulled up and down, and when the locking is pulled down, the locking plate triggers the micro switch first, and the controller detects the locking signal and performs electrical locking according to the set logic. At this time, the switch cannot be operated on the controller. At the same time, the limiting rod in the locking box is extended out of the locking box through mechanical linkage, so as to block the stroke of the manual opening and closing handle, and manual operation cannot be performed. When the operating rod is pushed up, the locking is unlocked, the locking plate releases the micro switch, the controller detects the release of the micro switch and ends the locking logic, and at this time, the switch can be operated on the controller. At the same time, the limiting rod is withdrawn into the locking box, and the stroke of the manual opening and closing handle is no longer blocked, and at this time, the switch can be manually opened and closed. The operation is convenient, the overall device structure is simple, and mechanical and electrical double locking is realized by pulling the handle, and the safety in use is more reliable. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is an overall structure schematic view of the utility model;
[0016] Figure 2 It is an overall structure schematic view of the utility model Figure 1 It is an enlarged structure schematic view of A in the utility model.
[0017] In the drawing: 1, box body; 2, fixed sealing module; 3, locking box; 4, limiting rod; 5, manual opening and closing handle; 6, locking plate; 7, locking spring; 8, operating rod; 9, micro switch; 10, transmission shaft. DETAILED DESCRIPTION
[0018] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0019] Please refer to Figures 1-2 In the embodiment, the double locking device of load switch comprises a box body 1, a fixed sealing module 2 is fixedly installed on the top of the box body 1, a locking box 3 is fixedly installed on one side of the box body 1, a limiting rod 4 is arranged in the locking box 3, a manual opening and closing operating rod 5 is arranged on one side of the box body 1, a locking plate 6 is arranged in the locking box 3, a locking spring 7 is arranged in the locking box 3, an operating rod 8 is fixedly connected to one end of the locking plate 6, a micro switch 9 is fixedly installed on the locking box 3, and a transmission shaft 10 is arranged on the locking plate 6.
[0020] Refer to Figure 1 The fixed sealing module 2 is provided in multiple groups and is fixedly installed on the top of the box body 1 through bolts.
[0021] Specifically, the installation and use are convenient, and the fixing and installation stability can be improved.
[0022] Refer to Figure 1 and Figure 2 The locking box 3 is fixedly installed on one side of the box body 1 through bolts; the limiting rod 4 is connected with the transmission shaft 10, and the limiting rod 4 is movably inserted into the locking box 3; the manual opening and closing operating rod 5 is rotatably connected with the box body 1 through a rotating shaft; the locking plate 6 is rotatably connected with the locking box 3 through a rotating shaft, and the locking plate 6 is abutted with one side of the micro switch 9 through rotation.
[0023] Specifically, the load switch can be conveniently closed, the operation and use are convenient, and the working safety performance is high.
[0024] The utility model discloses a working principle and use flow: operator passes through setting locking box 3, spacing rod 4, locking plate 6, locking spring 7, operating rod 8, micro -switch 9 and transmission shaft 10. The composition of seven accessories plus the set spacing logic signal relation can realize the function of locking device. Operating rod 8 can freely pull down, when pulling down the lock, first locking plate 6 triggers locking micro -switch 9, and controller detects locking signal and carries out electrical locking according to the set logic, at this moment, cannot carry out the switching operation on controller. The spacing rod 4 in locking box 3 is in mechanical linkage and extends locking box 3 simultaneously, thereby the stroke of manual switching operating rod 5 is blocked, and it can not carry out manual operation. Push operating rod 8 lock unlocking, at this moment, locking plate 6 releases micro -switch 9, and controller detects micro -switch 9 release and ends locking logic, at this moment, can pass through controller and divide switch. The spacing rod 4 is withdrawn into locking box 3 simultaneously, and the stroke of manual switching operating rod 5 is no longer blocked, at this moment, can manually switch.
[0025] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and do not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical feature. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.
Claims
1. Double locking device for load break switch comprising a box (1), characterized in that: The box top is fixedly installed with a solid sealing module (2), one side of the box (1) is fixedly installed with a locking box (3), the locking box (3) is internally provided with a limiting rod (4), one side of the box (1) is provided with a manual opening and closing operation rod (5), the locking box (3) is internally provided with a locking plate (6), the locking box (3) is internally provided with a locking spring (7), one end of the locking plate (6) is fixedly connected with an operation rod (8), the locking box (3) is fixedly installed with a micro switch (9) on the locking box (3), the locking plate (6) is provided with a transmission shaft (10).
2. The dual latching device of claim 1, wherein: The solid sealing module (2) is provided with multiple groups and is fixedly installed on the top of the box (1) through bolts.
3. The dual latching device of claim 1, wherein: The locking box (3) is fixedly installed on one side of the box (1) through bolts.
4. The dual latching device of claim 1, wherein: The limiting rod (4) is connected with the transmission shaft (10), and the limiting rod (4) is movably inserted into the locking box (3).
5. The dual latching device of claim 1, wherein: The manual opening and closing operation rod (5) is rotatably connected with the box (1) through a rotating shaft.
6. The dual latching device of claim 1, wherein: The locking plate (6) is rotatably connected with the locking box (3) through a rotating shaft, and the locking plate (6) is abutted with one side of the micro switch (9) through rotation.