A misoperation prevention interlocking protection device for load switch

Abstract

The utility model discloses a kind of load switch misoperation-proof interlock protection devices, including load switch device, the front side of load switch device is equipped with knob, and is provided with locking mechanism, locking mechanism includes the fixed plate of fixed connection on the upside of load switch device, the front side of the fixed plate is fixedly connected with support block, the surface of the support block is slidably connected with locking frame, the inner wall of the locking frame is slidably connected with the surface of knob, the locking frame is used to prevent knob rotation, the front side of load switch device is provided with interlock driving mechanism. Interlock driving mechanism includes micro motor of fixed connection in the front side of fixed plate. The utility model uses, under the effect of locking mechanism and interlock driving mechanism and its misoperation-proof touch locking mechanism, can prevent misoperation to open load switch, avoid the misoperation caused by the fact that load switch does not have interlock protection device, so that it has the advantage of convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of load switch technology, specifically to a load switch anti-misoperation interlocking protection device. Background Technology

[0002] Load switch anti-misoperation interlocking protection locking device is a key device in power systems to prevent electrical misoperation. Its core function is to prevent accidental opening / closing of load switches through a mechanical interlocking mechanism. This device can lock the load switch, preventing it from being manually opened, ensuring that operating commands match the equipment status.

[0003] For example, Chinese Patent Application No. 201921481946.9 discloses a load switch combination appliance. The operating mechanism of this utility model's load switch combination appliance is equipped with a load switch operating hole stop bar and an isolating grounding operating hole stop bar. When the load switch is closed, the load switch operating shaft blocks the isolating grounding operating hole stop bar, preventing isolating grounding operation. When the isolating grounding is closed, the isolating grounding shaft pusher on the isolating grounding operating shaft pushes the transmission rod, causing the load switch operating hole stop bar to block the load switch operating hole. At this time, the load switch operating handle cannot be inserted, and the load switch cannot be operated to close. Through the combined action of the load switch operating hole stop bar and the isolating grounding operating hole stop bar, the isolating grounding operating shaft and the load switch operating shaft are interlocked, avoiding misoperation and reducing safety hazards.

[0004] In the daily use of the load switch (RD08), due to the lack of anti-misoperation interlocking protection devices, operators are very prone to misoperation due to negligence or operating habits, which may lead to the load switch being accidentally opened. Such accidental opening may cause serious consequences such as short circuits, equipment damage, or even endangering personnel safety.

[0005] Therefore, it is necessary to design and modify the load switch anti-misoperation interlocking protection device to effectively prevent the switch from being opened accidentally. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a load switch anti-misoperation interlocking protection device, which has the advantages of being easy to use and solves the problem of accidental switch opening.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a load switch anti-misoperation interlocking protection device, comprising a load switch device, a knob installed on the front side of the load switch device, and a locking mechanism, the locking mechanism comprising a fixing plate fixedly connected to the upper side of the load switch device, a support block fixedly connected to the front side of the fixing plate, a locking frame slidably connected to the surface of the support block, the inner wall of the locking frame slidably connected to the surface of the knob, the locking frame being used to prevent the knob from rotating, and an interlocking drive mechanism being provided on the front side of the load switch device.

[0008] As a preferred embodiment of this utility model, the interlocking drive mechanism includes a micro motor fixedly connected to the front side of the fixed plate. A screw is fixedly connected to the upper output end of the micro motor, and a movable plate is threadedly connected to the surface of the screw. The lower side of the movable plate is fixedly connected to the upper side of the locking frame. A control module is installed on the front side of the micro motor. The control module is used to control the motor to run after detecting that the voltage is normal, thereby releasing the locking frame from locking the knob. An anti-accidental contact locking mechanism is provided on the front side of the load switch device.

[0009] As a preferred embodiment of this utility model, the anti-accidental touch locking mechanism includes a square groove and a circular groove respectively opened on the front and rear sides of the knob. A square block is provided inside the circular groove, and a circular rod is provided inside the square groove. The front end of the circular rod is fixedly connected to the rear side of the square block, and the rear end of the circular rod is fixedly connected to the front side of the load switch device for driving the load switch device to open and close. After the knob moves forward, the square block is locked into the square groove, so that the load switch device can be driven to open or close through the circular rod.

[0010] As a preferred embodiment of this invention, a protective box is provided on the front side of the micro motor, and the rear side of the protective box is fixedly connected to the front side of the fixing plate.

[0011] In a preferred embodiment of this invention, the upper end of the screw is movably connected to a stabilizing plate via a bearing, and the rear side of the stabilizing plate is fixedly connected to the front side of the fixing plate.

[0012] As a preferred embodiment of this invention, a limiting plate is fixedly connected to the surface of the support block, and the inner side of the limiting plate is slidably connected to the front and rear sides of the locking frame, thereby increasing the stability of the locking frame moving up and down.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. When this utility model is in use, under the action of the locking mechanism, the interlocking drive mechanism and the anti-accidental contact locking mechanism, it can prevent the load switch from being opened by accidental operation, avoid the accidental operation caused by the lack of interlocking protection device for the load switch, and make it easy to use.

[0015] 2. This utility model achieves automatic unlocking of the locking frame by setting an interlocking drive mechanism. This not only improves the convenience of operation but also ensures that the load switch device can only be operated under safe voltage conditions, further enhancing the safety of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is an enlarged view of a partial structure of the present invention;

[0019] Figure 4 This is a partial cross-sectional view of the present invention.

[0020] In the diagram: 1. Load switch device; 2. Knob; 3. Fixing plate; 4. Support block; 5. Locking frame; 6. Micro motor; 7. Screw; 8. Moving plate; 9. Control module; 10. Square slot; 11. Circular slot; 12. Square block; 13. Round rod; 14. Protective box; 15. Stabilizing plate; 16. Limiting plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 4 As shown, the present invention provides a load switch anti-misoperation interlocking protection device, including a load switch device 1, a knob 2 installed on the front side of the load switch device 1, and a locking mechanism. The locking mechanism includes a fixing plate 3 fixedly connected to the upper side of the load switch device 1, a support block 4 fixedly connected to the front side of the fixing plate 3, a locking frame 5 slidably connected to the surface of the support block 4, and the inner wall of the locking frame 5 slidably connected to the surface of the knob 2. The locking frame 5 is used to prevent the knob 2 from rotating. An interlocking drive mechanism is provided on the front side of the load switch device 1.

[0023] refer to Figure 3The interlocking drive mechanism includes a micro motor 6 fixedly connected to the front side of the fixed plate 3. A screw 7 is fixedly connected to the upper output end of the micro motor 6. A movable plate 8 is threadedly connected to the surface of the screw 7. The lower side of the movable plate 8 is fixedly connected to the upper side of the locking frame 5. A control module 9 is installed on the front side of the micro motor 6. The control module 9 is used to control the motor to run after the voltage is detected to be normal, thereby releasing the locking frame 5 from locking the knob 2. An anti-accidental contact locking mechanism is provided on the front side of the load switch device 1.

[0024] As a technical optimization of this utility model, an interlocking drive mechanism is set up to realize the automatic unlocking function of the locking frame 5. This not only improves the convenience of operation, but also ensures that the load switch device 1 can only be operated under safe voltage conditions, further enhancing the safety of the equipment.

[0025] refer to Figure 4 The anti-accidental touch locking mechanism includes a square groove 10 and a circular groove 11 respectively opened on the front and rear sides inside the knob 2. A square block 12 is provided inside the circular groove 11, and a round rod 13 is provided inside the square groove 10. The front end of the round rod 13 is fixedly connected to the rear side of the square block 12, and the rear end of the round rod 13 is fixedly connected to the front side of the load switch device 1, which is used to drive the load switch device 1 to open and close. After the knob 2 moves forward, the square block 12 is inserted into the square groove 10, so that the load switch device 1 can be driven to open or close through the round rod 13.

[0026] As a technical optimization of this utility model, by setting an anti-accidental touch locking mechanism, this design increases the steps and difficulty of operation, effectively prevents accidental operation caused by accidental touch of knob 2, and further ensures the safe operation of the equipment.

[0027] refer to Figure 2 A protective box 14 is provided on the front side of the micro motor 6, and the rear side of the protective box 14 is fixedly connected to the front side of the fixing plate 3.

[0028] As a technical optimization of this utility model, by setting the protective box 14, the micro motor 6 can be well protected, avoiding damage to the motor due to external environmental factors, extending the service life of the micro motor 6, and reducing the maintenance cost of the equipment.

[0029] refer to Figure 2 The upper end of the screw 7 is movably connected to the stabilizing plate 15 via a bearing, and the rear side of the stabilizing plate 15 is fixedly connected to the front side of the fixing plate 3.

[0030] As a technical optimization of this utility model, by setting a stabilizing plate 15, the stabilizing plate 15 provides a stable support point for the rotation of the screw 7, reducing the shaking and deviation during the rotation of the screw 7, and improving the working performance of the entire device.

[0031] refer to Figure 3 A limiting plate 16 is fixedly connected to the surface of the support block 4. The inner side of the limiting plate 16 is slidably connected to the front and rear sides of the locking frame 5, thereby increasing the stability of the locking frame 5 moving up and down.

[0032] As a technical optimization of this utility model, by setting the limiting plate 16, the stability of the movement of the locking frame 5 is increased, preventing the locking frame 5 from shifting or getting stuck during the movement, and ensuring that the locking mechanism can work normally and reliably.

[0033] The working principle and usage process of this utility model are as follows: During use, the control module 9 monitors the voltage in real time. When the voltage is normal, the control module 9 issues a command to make the micro motor 6 run. The micro motor 6 drives the screw 7 to rotate. Since the screw 7 is threadedly connected to the moving plate 8, the moving plate 8 will move upward, thereby causing the locking frame 5 to slide upward, releasing the locking frame 5 from locking the knob 2. At this time, the operator can pull the knob 2, so that the square block 12 inside the knob 2 is engaged in the square groove 10 (secondary prevention of accidental contact). The round rod 13 is fixedly connected to the square block 12 and connected to the load switch device 1, so that the load switch device 1 can be opened or closed by rotating the knob 2 via the round rod 13. During the up and down movement of the locking frame 5, the limit plate 16 is slidably connected to the locking frame 5 to ensure its movement stability; the stabilizing plate 15 is connected to the screw 7 through the bearing, providing stable support for the rotation of the screw 7; the protective box 14 protects the micro motor 6. This avoids misoperation caused by the lack of interlocking protection device in the load switch, making it easy to use.

[0034] In summary, when this utility model is used, the locking mechanism, the interlocking drive mechanism, and the anti-accidental contact locking mechanism can prevent the load switch from being opened by accident, thus avoiding the accidental operation caused by the lack of an interlocking protection device for the load switch, and making it easy to use.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A load switch anti-misoperation interlocking protection device, comprising a load switch device (1), wherein a knob (2) is installed on the front side of the load switch device (1) and a locking mechanism is provided, characterized in that: The locking mechanism includes a fixed plate (3) fixedly connected to the upper side of the load switch device (1), a support block (4) fixedly connected to the front side of the fixed plate (3), a locking frame (5) slidably connected to the surface of the support block (4), the inner wall of the locking frame (5) slidably connected to the surface of the knob (2), the locking frame (5) is used to prevent the knob (2) from rotating, and an interlocking drive mechanism is provided on the front side of the load switch device (1).

2. The load switch anti-misoperation interlocking protection device according to claim 1, characterized in that: The interlocking drive mechanism includes a micro motor (6) fixedly connected to the front side of the fixed plate (3). A screw (7) is fixedly connected to the upper output end of the micro motor (6). A movable plate (8) is threadedly connected to the surface of the screw (7). The lower side of the movable plate (8) is fixedly connected to the upper side of the locking frame (5). A control module (9) is installed on the front side of the micro motor (6). The control module (9) is used to control the motor to run after the voltage is detected to be normal, thereby releasing the locking frame (5) from locking the knob (2). An anti-accidental touch locking mechanism is provided on the front side of the load switch device (1).

3. The load switch anti-misoperation interlocking protection device according to claim 2, characterized in that: The anti-accidental touch locking mechanism includes a square groove (10) and a circular groove (11) respectively opened on the front and rear sides inside the knob (2). A square block (12) is provided inside the circular groove (11), and a round rod (13) is provided inside the square groove (10). The front end of the round rod (13) is fixedly connected to the rear side of the square block (12), and the rear end of the round rod (13) is fixedly connected to the front side of the load switch device (1) for driving the load switch device (1) to open and close. After the knob (2) moves forward, the square block (12) is inserted into the square groove (10), so that the load switch device (1) can be opened or closed by the round rod (13).

4. The load switch anti-misoperation interlocking protection device according to claim 2, characterized in that: The front side of the micro motor (6) is provided with a protective box (14), and the rear side of the protective box (14) is fixedly connected to the front side of the fixing plate (3).

5. The load switch anti-misoperation interlocking protection device according to claim 2, characterized in that: The upper end of the screw (7) is movably connected to a stabilizing plate (15) via a bearing, and the rear side of the stabilizing plate (15) is fixedly connected to the front side of the fixing plate (3).

6. The load switch anti-misoperation interlocking protection device according to claim 1, characterized in that: The surface of the support block (4) is fixedly connected to a limiting plate (16), and the inner side of the limiting plate (16) is slidably connected to the front and rear sides of the locking frame (5) to increase the stability of the locking frame (5) moving up and down.

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