Quick-release self-locking operating device for disconnecting switch

Abstract

The invention belongs to the technical field of mining equipment, and discloses a quick-release self-locking operating device for an isolating switch, which comprises the isolating switch and an isolating switch operating device, the isolating switch is mounted in an electric cabinet, the isolating switch operating device is mounted on a cover plate of the electric cabinet in a pluggable manner, and the isolating switch operating device is mounted in the electric cabinet in a pluggable manner. The isolating switch operating device is matched with a clamping groove of the isolating switch, and a self-locking mechanism is mounted on the isolating switch operating device. According to the technical scheme, rapid positioning and installation can be achieved, the installation time is saved, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of mining equipment, and in particular relates to a quick-release self-locking operating device for disconnecting switches. Background Technology

[0002] In mining operations such as coal mining, mine disconnect switches are crucial equipment for ensuring the safe operation of power systems. The operating device, as a key component of the disconnect switch, directly impacts its ease of operation and safety. However, traditional mine disconnect switch operating devices have several problems. First, during equipment maintenance or replacement of the operating shaft, traditional structures often require multiple complex tools and involve time-consuming, tedious disassembly work, such as sequentially removing multiple fastening bolts and separating complex connecting parts. This significantly reduces maintenance efficiency and impacts production progress. Furthermore, they lack self-locking functionality. After operation, the traditional operating shaft of a mine disconnect switch is prone to accidental rotation due to external forces or vibrations, leading to changes in the disconnect switch's state and potential safety hazards. For example, in underground working environments, machine vibrations may cause non-self-locking operating shafts to rotate, causing the disconnect switch to accidentally close or open, threatening personnel and equipment safety. Summary of the Invention

[0003] The purpose of this invention is to provide a quick-release self-locking operating device for disconnecting switches to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides a quick-release self-locking operating device for a disconnecting switch, comprising a disconnecting switch and a disconnecting switch operating device. The disconnecting switch is installed inside an electrical control box, and the disconnecting switch operating device is plugged into the cover plate of the electrical control box. The disconnecting switch operating device is configured to cooperate with the slot of the disconnecting switch, and a self-locking mechanism is installed on the disconnecting switch operating device.

[0005] Optionally, the disconnector operating device includes an operating shaft and a mounting base. The mounting base is detachably mounted on the cover of the electrical control box, and the operating shaft passes through the mounting base and is inserted into a slot.

[0006] Optionally, the operating shaft includes a positioning shaft, an operating handle, and a positioning pin. The positioning shaft passes through the mounting base, one end of the positioning shaft is connected to the operating handle, and the other end is provided with a positioning pin, which is inserted into the slot.

[0007] Optionally, a limit slot is provided on one side of the positioning shaft, and a self-locking mechanism is installed in the limit slot.

[0008] Optionally, the self-locking mechanism includes a self-locking button rod, a return spring, and a limiting plate. The limiting plate is movably disposed within the limiting slot. The self-locking button rod passes through the mounting base and contacts the limiting plate. The return spring is sleeved on the self-locking button rod, with one end fixed to the bottom of the self-locking button rod and the other end connected to the limiting plate.

[0009] Optionally, a sealing ring is provided at the connection between the positioning shaft and the mounting base.

[0010] Optionally, a guide component is installed in the slot.

[0011] The technical effects of this invention are as follows:

[0012] This invention can improve maintenance efficiency. The quick-release structure makes the disassembly and installation of the operating shaft simple and fast, saving a lot of maintenance time, reducing equipment downtime, and improving production efficiency. The traditional operating device requires 30 minutes to assemble, while the disassembly time can be shortened to less than 5 minutes after adopting this device.

[0013] This invention enhances operational safety. The self-locking structure in this embodiment effectively prevents the operating shaft from rotating unexpectedly, ensuring that the isolating switch remains in the set state, reducing the possibility of safety accidents, and protecting the safety of personnel and equipment in mine operations. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the quick-release self-locking operating device in an embodiment of the present invention;

[0017] Figure 2 As described in the embodiments of the present invention Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0018] Figure 3 As described in the embodiments of the present invention Figure 1 A schematic diagram of the cross-sectional structure at point BB.

[0019] Labeling Explanation: 1. Locating pin; 2. Locating shaft; 3. Mounting base; 4. Sealing ring; 5. Operating handle; 6. Self-locking button lever; 7. Return spring; 8. Limit plate; 9. Disconnecting switch; 10. Housing of electrical control box; 11. Disconnecting switch operating device; 12. Cover plate. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] To facilitate understanding of the present invention, a more comprehensive description of the invention will be given below with reference to the accompanying drawings, and several embodiments of the invention will be provided. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the invention will be more thorough and complete.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] like Figures 1-3As shown, this embodiment provides a quick-release self-locking operating device for a disconnecting switch, including a disconnecting switch 9 and a disconnecting switch operating device 11. The disconnecting switch 9 is installed inside an electrical control box, and the disconnecting switch operating device 11 is plugged into the cover plate 12 of the electrical control box. The disconnecting switch operating device 11 is configured to cooperate with the slot of the disconnecting switch 9, and a self-locking mechanism is installed on the disconnecting switch operating device 11.

[0027] This embodiment provides a quick-release self-locking operating device for a mining disconnect switch, which enables rapid disassembly, improves maintenance efficiency, and has a reliable self-locking function to enhance operational safety.

[0028] The disconnector switch operating device 11 provided in this embodiment consists of a positioning pin 1, a positioning shaft 2, a mounting base 3, a sealing ring 4, an operating handle 5, a self-locking button rod 6, a return spring 7, and a limit plate 8. The mounting base 3 is detachably installed on the cover plate 12 of the electrical control box. The positioning shaft 2 passes through the mounting base 3. One end of the positioning shaft 2 is connected to the operating handle 5, and the other end is provided with a positioning pin 1. The positioning pin 1 is inserted into the slot. A sealing ring 4 is provided at the connection between the positioning shaft 2 and the mounting base 3. A limit slot is provided on one side of the positioning shaft 2, and a self-locking mechanism is installed in the limit slot.

[0029] In this embodiment, the installation and disassembly steps of the disconnector switch operating device 11 are as follows: Align the positioning shaft 2 on the operating device with the slot on the disconnector switch 9 body and insert it to complete the connection between the operating device and the disconnector switch 9 body. Then, tighten the four fixing screws. For disassembly, simply remove the four fixing screws to easily pull the operating device outwards for quick disassembly. When it is necessary to operate the disconnector switch 9 to close or open, the self-locking button lever 6 must first be pressed to move the limit plate 8 away from the locking slot corresponding to the positioning shaft 2, thereby unlocking the operating device before the closing or opening operation can be performed.

[0030] To ensure the accuracy and stability of the insertion and removal process of the operating shaft, this embodiment adds a positioning guide component. The connection part between the operating shaft and the main body of the disconnect switch 9 is provided with a guide key and a guide groove. The guide key slides along the guide groove, which not only guides the operating shaft to be inserted smoothly, but also prevents it from being offset or misaligned during installation, thus ensuring the reliability of the connection.

[0031] During the installation and disassembly of the disconnector switch operating device 11, it is essential to ensure that the connection between the operating shaft and the main body of the disconnector switch 9 is clean and free of debris to avoid affecting the normal operation of the quick-release and self-locking functions. Simultaneously, the wear of the quick-release connector's slot and the positioning pin 1 and locking groove of the self-locking mechanism should be checked regularly. If severe wear or damage is found, the relevant components should be replaced promptly to ensure the reliability of the device.

[0032] This embodiment improves maintenance efficiency. The quick-release structure makes the disassembly and installation of the operating shaft simple and fast, saving a significant amount of maintenance time, reducing equipment downtime, and increasing production efficiency. Traditional operating device assembly takes 30 minutes; with this device, disassembly time can be reduced to less than 5 minutes.

[0033] The operating device in this embodiment is also equipped with a self-locking mechanism, which adopts a circular slot self-locking mechanism, specifically including a self-locking button rod 6, a limiting plate 8, and a return spring 7; the limiting plate 8 is movably disposed in the limiting slot, the self-locking button rod 6 passes through the mounting base 3 and contacts the limiting plate 8, and the return spring 7 is sleeved on the self-locking button rod 6, with one end fixed to the bottom of the self-locking button rod 6 and the other end connected to the limiting plate 8.

[0034] In this embodiment, the operating shaft is designed with a semi-circular limit slot. After the operating shaft completes the opening and closing operation of the isolating switch 9, the limit plate 8 automatically engages in the limit slot under the spring force of the reset spring 7, preventing the operating handle 5 from rotating in the opposite direction, thereby achieving self-locking of the operating shaft. When unlocking is required, the limit plate 8 must first be moved away from the corresponding limit slot by operating the self-locking button rod 6 to unlock the operating device before the closing or opening operation can be performed.

[0035] This embodiment enhances operational safety. The self-locking structure effectively prevents the operating shaft from rotating unexpectedly, ensuring that the isolating switch remains in the set state, reducing the possibility of safety accidents, and protecting the safety of personnel and equipment in mine operations.

[0036] The disconnector switch operating device in this embodiment adopts a unique circular positioning plug-in structure, which can achieve rapid positioning and installation, greatly saving installation time and improving maintenance efficiency.

[0037] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A quick-release self-locking operating device for disconnecting switches, characterized in that, It includes a disconnect switch (9) and a disconnect switch operating device (11). The disconnect switch (9) is installed inside the electrical control box. The disconnect switch operating device (11) is plugged into the cover plate (12) of the electrical control box. The disconnect switch operating device (11) is configured to cooperate with the slot of the disconnect switch (9). The disconnect switch operating device (11) is equipped with a self-locking mechanism.

2. The apparatus according to claim 1, characterized in that, The disconnector switch operating device (11) includes an operating shaft and a mounting base (3). The mounting base (3) is detachably mounted on the cover plate (12) of the electrical control box. The operating shaft passes through the mounting base (3) and is inserted into the slot.

3. The apparatus according to claim 2, characterized in that, The operating shaft includes a positioning shaft (2), an operating handle (5), and a positioning pin (1). The positioning shaft (2) passes through the mounting base (3). One end of the positioning shaft (2) is connected to the operating handle (5), and the other end is provided with a positioning pin (1). The positioning pin (1) is inserted into the slot.

4. The apparatus according to claim 3, characterized in that, A limit slot is provided on one side of the positioning shaft (2), and a self-locking mechanism is installed in the limit slot.

5. The apparatus according to claim 4, characterized in that, The self-locking mechanism includes a self-locking button rod (6), a return spring (7), and a limiting plate (8). The limiting plate (8) is movably disposed in the limiting slot. The self-locking button rod (6) passes through the mounting base (3) and contacts the limiting plate (8). The return spring (7) is sleeved on the self-locking button rod (6), with one end fixed to the bottom of the self-locking button rod (6) and the other end connected to the limiting plate (8).

6. The apparatus according to claim 3, characterized in that, A sealing ring (4) is provided at the connection between the positioning shaft (2) and the mounting base (3).

7. The apparatus according to claim 1, characterized in that, A guide component is installed inside the slot.

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