A novel manual operation auxiliary device for disconnecting switches

Abstract

This utility model relates to the technical field of auxiliary devices for switch control, and discloses a novel manual operation auxiliary device for disconnecting switches, comprising: a handle, a motor assembly, a reduction mechanism, and a sleeve. The motor assembly is connected to the handle, the output end of the motor assembly is connected to the reduction mechanism, and the output end of the reduction mechanism is connected to the sleeve. A human-machine interface module is installed at the top of the handle's inner cavity, a resistor module is installed at the bottom of the handle's inner cavity, a control module is installed in the handle's inner cavity, and a limit mechanism is installed inside the handle. This novel manual operation auxiliary device for disconnecting switches avoids the impact of reaction forces on the operator or the device's connection parts, enhances the stability of the operation process, and protects the device structure. Through the synergistic effect of its components, the overall structure not only achieves labor-saving manual operation assistance but also further improves the safety, accuracy, and convenience of operation, and extends the service life of the device.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary devices for switch control, specifically a novel manual operation auxiliary device for disconnect switches. Background Technology

[0002] As an important device in power systems used for circuit isolation and switching, disconnect switches often require auxiliary devices for manual operation to achieve labor-saving and more convenient control. These devices are widely used in the operation and maintenance of various power facilities to improve the efficiency and feasibility of disconnect switch operation.

[0003] Existing manual operation auxiliary devices for disconnect switches lack an effective human-machine interface structure in their handles, making operation inconvenient and unintuitive for operators. Furthermore, the absence of a monitoring and feedback mechanism for electrical signals during operation hinders precise control of components such as motors, resulting in poor stability and reliability. This makes it difficult to prevent over- or under-operation, leading to insufficient accuracy and significant mechanical impact during limit movements. Additionally, the deceleration mechanism lacks adequate protection against operational reaction forces, which can affect operators or device connections, compromising operational stability and potentially damaging the device structure. Overall, there is room for improvement in operational safety, accuracy, and convenience, and the device's lifespan is also limited. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel manual operation auxiliary device for disconnect switches. This device solves the problems of lacking a monitoring and feedback mechanism for electrical signals during operation, making it difficult to achieve precise control of components such as motor units. This results in poor stability and reliability of the device, an inability to effectively prevent over- or under-operation, insufficient operational accuracy, and a tendency to generate significant mechanical impact during limit actions. Furthermore, the deceleration mechanism lacks a corresponding protective structure when subjected to operational reaction forces, which can easily affect the operator or the device's connection points, hindering stable operation and potentially damaging the device structure. Overall, the device has room for improvement in operational safety, accuracy, and convenience, and its service life is also somewhat limited.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel manual operation auxiliary device for disconnecting switches, comprising: a handle, a motor assembly, a reduction mechanism, and a sleeve. The motor assembly is connected to the handle, the output end of the motor assembly is connected to the reduction mechanism, the output end of the reduction mechanism is connected to the sleeve, a human-machine interface module is provided at the top of the inner cavity of the handle, a resistor module is provided at the bottom of the inner cavity of the handle, a control module is provided in the inner cavity of the handle, a limit mechanism is provided inside the handle, and a limit reaction arm is provided outside the reduction mechanism.

[0006] The limiting mechanism includes a tube body, with a piston rod and a piston body slidably connected to both sides of the inner cavity of the tube body, a locking arm connected to the bottom of the piston body, a locking block connected to the outside of the locking arm, and a first spring connected between the piston rod and the tube body.

[0007] In use, the operator inputs operating commands through the human-machine interface module. After receiving the commands, the control module drives the motor unit to work. The power of the motor unit is reduced and increased in torque by the reduction mechanism and then transmitted to the sleeve. The sleeve is fitted with the operating shaft of the disconnect switch and drives it to rotate, realizing the opening and closing operation of the disconnect switch. The resistor module can monitor the current change in the circuit in real time and provide overload protection signals to the control module. In the limit mechanism, when the piston rod is subjected to external force, it will compress the first spring and slide in the tube, thereby pushing the medium in the tube to flow, driving the piston body to move, causing the locking arm to drive the locking block to extend or retract, thereby limiting the operating stroke.

[0008] The limit reaction arm can abut against an external fixed structure to counteract the reaction force generated during the operation of the deceleration mechanism and prevent the entire device from shaking. The human-machine interface module improves ease of operation, the control module enables automated control, the resistor module enhances safety, and the limit mechanism and limit reaction arm ensure operational accuracy and stability, thereby improving the overall efficiency and reliability of the disconnector switch operation.

[0009] Preferably, a C-shaped plate is provided at the bottom of the piston rod, and a wear-resistant pad is provided at the bottom of the C-shaped plate. The C-shaped plate increases the contact area between the piston rod and the contacting parts, thus dispersing the force.

[0010] Wear-resistant pads reduce frictional wear between the C-shaped plate and contact components. This prevents excessive localized stress on the piston rod, which could lead to deformation, and extends the service life of the C-shaped plate, ensuring long-term stable operation of the limit mechanism.

[0011] Preferably, the top of the pipe is connected to a fluid inlet, the top of which is fitted with a sealing plug, and the inner cavity of the inlet is filled with a flowing medium. The flowing medium, such as hydraulic oil, transmits the force between the piston rod and piston body within the pipe, enabling their linkage. When the flowing medium is depleted, it can be replenished through the fluid inlet, and the sealing plug prevents leakage. The flowing medium ensures stable force transmission, making the limiting mechanism operate sensitively; the fluid inlet facilitates later maintenance and extends the service life of the device.

[0012] Preferably, the inner cavity of the tube is provided with a horizontal plate, and a second spring connects the horizontal plate to the piston body. When the piston body moves under the push of the medium, it will stretch or compress the second spring; when the external force disappears, the elastic force of the second spring will drive the piston body to reset, thereby causing the locking block to return to its initial position.

[0013] The second spring enhances the piston's reset capability, ensuring the accuracy of the limit mechanism's reset when not in operation and improving the reliability of the limit.

[0014] Preferably, both the piston body and the piston rod have sliding plates within their inner cavities, and the sliding plates are slidably connected to the inner cavity of the tube. The sliding plates restrict the sliding direction of the piston body and piston rod within the tube, preventing them from shifting or rotating. This ensures the linearity of the piston body and piston rod's movement, avoids jamming caused by shifting, and improves the working stability of the limiting mechanism.

[0015] Preferably, the inner cavity of the reduction mechanism is provided with a three-stage planetary gear reducer, the output end of which is connected to the sleeve, and the inner cavity of the sleeve is provided with anti-slip texture.

[0016] The three-stage planetary gear reducer converts the high-speed, low-torque power of the motor into low-speed, high-torque power through multi-stage gear meshing, meeting the high torque requirements of disconnector operation. The anti-slip texture on the inner cavity of the sleeve increases friction between the sleeve and the disconnector operating shaft, preventing slippage. The three-stage planetary gear reducer achieves efficient speed reduction and torque increase, ensuring sufficient operating power; the anti-slip texture ensures a secure connection between the sleeve and the operating shaft, avoiding power transmission losses and improving the success rate of operation.

[0017] Compared with the prior art, this utility model provides a novel manual operation auxiliary device for disconnecting switches, which has the following beneficial effects:

[0018] This novel manual operation auxiliary device for disconnect switches features a human-machine interface module within the handle cavity, facilitating operator control and enhancing ease of use and intuitiveness. The resistor module enables monitoring and feedback of relevant electrical signals during operation, allowing for precise control of components such as the motor assembly, thus improving the stability and reliability of the device. In the limit mechanism design, the piston rod, piston body, and first spring within the tube work together, combined with the locking arm and locking block, to effectively limit movement during operation, preventing over- or under-operation and improving accuracy. Simultaneously, the elasticity of the first spring ensures smoother limit action and reduces mechanical impact. The external limit reaction arm of the deceleration mechanism can withstand the reaction force generated during operation, preventing it from affecting the operator or the device's connections, enhancing operational stability, and protecting the device structure. Through the coordinated action of its components, the overall structure not only provides labor-saving manual operation assistance but also further enhances operational safety, accuracy, and convenience, extending the device's service life. Attached Figure Description

[0019] Figure 1 This is a front view of the present utility model;

[0020] Figure 2 This is a plan view of the present invention;

[0021] Figure 3 This is a partial sectional view of the limiting mechanism of this utility model.

[0022] In the diagram: 1. Handle; 11. Human-machine interaction module; 12. Resistor module; 13. Control module; 2. Limiting mechanism; 21. Tube body; 22. Piston rod; 23. C-shaped plate; 24. First spring; 25. Piston body; 26. Clamping arm; 27. Clamping block; 28. Second spring; 29. ​​Liquid inlet; 3. Motor assembly; 4. Reduction mechanism; 5. Sleeve; 6. Limiting reaction arm. Detailed Implementation

[0023] 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.

[0024] This utility model provides a technical solution; please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3A novel manual operation auxiliary device for disconnecting switches includes: a handle 1, a motor assembly 3, a reduction mechanism 4, and a sleeve 5. The motor assembly 3 is connected to the handle 1, the output end of the motor assembly 3 is connected to the reduction mechanism 4, the output end of the reduction mechanism 4 is connected to the sleeve 5, a human-machine interaction module 11 is provided at the top of the inner cavity of the handle 1, a resistor module 12 is provided at the bottom of the inner cavity of the handle 1, a control module 13 is provided in the inner cavity of the handle 1, a limit mechanism 2 is provided inside the handle 1, and a limit reaction arm 6 is provided outside the reduction mechanism 4.

[0025] The limiting mechanism 2 includes a tube body 21. A piston rod 22 and a piston body 25 are slidably connected to both sides of the inner cavity of the tube body 21. A locking arm 26 is connected to the bottom of the piston body 25. A locking block 27 is connected to the outside of the locking arm 26. A first spring 24 is connected between the piston rod 22 and the tube body 21.

[0026] In use, the operator inputs operation commands through the human-machine interaction module 11. After receiving the commands, the control module 13 drives the motor group 3 to work. The power of the motor group 3 is reduced and increased in torque by the reduction mechanism 4 and then transmitted to the sleeve 5. The sleeve 5 is fitted with the operating shaft of the disconnect switch and drives it to rotate, so as to realize the opening and closing operation of the disconnect switch. The resistor module 12 can monitor the current change in the circuit in real time and provide overload protection signals to the control module 13. In the limit mechanism 2, when the piston rod 22 is subjected to external force, it will compress the first spring 24 and slide in the tube 21, thereby pushing the medium in the tube 21 to flow, driving the piston body 25 to move, so that the locking arm 26 drives the locking block 27 to extend or retract, thereby limiting the operating stroke.

[0027] The limiting reaction arm 6 can abut against the external fixed structure to counteract the reaction force generated by the deceleration mechanism 4 during operation, preventing the entire device from shaking. The human-machine interface module 11 improves the ease of operation, the control module 13 realizes automated control, the resistor module 12 enhances the safety of use, and the limiting mechanism 2 and the limiting reaction arm 6 ensure the accuracy and stability of operation, thus improving the overall efficiency and reliability of the disconnecting switch operation.

[0028] A C-shaped plate 23 is provided at the bottom of the piston rod 22, and a wear-resistant pad is provided at the bottom of the C-shaped plate 23. The C-shaped plate 23 increases the contact area between the piston rod 22 and the contacting parts, thus dispersing the force.

[0029] The wear-resistant pad reduces frictional wear between the C-shaped plate 23 and the contacting parts. It prevents excessive local stress on the piston rod 22, which could lead to deformation, and extends the service life of the C-shaped plate 23, ensuring the long-term stable operation of the limit mechanism 2.

[0030] The top of the pipe body 21 is connected to a fluid inlet 29, and a sealing plug is installed at the top of the fluid inlet 29. The inner cavity of the fluid inlet 29 contains a flowing medium, such as hydraulic oil. This flowing medium transmits the force between the piston rod 22 and the piston body 25 within the pipe body 21, enabling their linkage. When the flowing medium is depleted, it can be replenished through the fluid inlet 29, and the sealing plug prevents leakage. The flowing medium ensures stable force transmission, making the limit mechanism 2 operate sensitively. The fluid inlet 29 facilitates later maintenance and extends the service life of the device.

[0031] A horizontal plate is provided inside the tube body 21, and a second spring 28 is connected between the horizontal plate and the piston body 25. When the piston body 25 moves under the push of the medium, it will stretch or compress the second spring 28; when the external force disappears, the elastic force of the second spring 28 will drive the piston body 25 to reset, thereby causing the locking block 27 to return to its initial position.

[0032] The second spring 28 enhances the reset capability of the piston body 25, ensuring the reset accuracy of the limit mechanism 2 in the non-working state and improving the reliability of the limit.

[0033] Both the piston body 25 and the piston rod 22 have sliding plates inside their cavities, which are slidably connected to the inner cavity of the tube 21. The sliding plates restrict the sliding direction of the piston body 25 and piston rod 22 within the tube 21, preventing them from shifting or rotating. This ensures the linearity of the movement of the piston body 25 and piston rod 22, avoids jamming caused by shifting, and improves the working stability of the limiting mechanism 2.

[0034] The inner cavity of the reduction mechanism 4 is equipped with a three-stage planetary gear reducer. The output end of the three-stage planetary gear reducer is connected to the sleeve 5. The inner cavity of the sleeve 5 is provided with anti-slip texture.

[0035] The three-stage planetary gear reducer converts the high-speed, low-torque power of motor unit 3 into low-speed, high-torque power through multi-stage gear meshing, meeting the high torque requirements of disconnecting switch operation. The anti-slip texture inside sleeve 5 increases the friction between it and the disconnecting switch operating shaft, preventing slippage. The three-stage planetary gear reducer achieves efficient speed reduction and torque increase, ensuring sufficient operating power; the anti-slip texture ensures a firm connection between sleeve 5 and the operating shaft, avoiding power transmission loss and improving the success rate of operation.

[0036] 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.

[0037] 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 novel isolating switch manual operation assist device comprising: The assembly comprises a handle (1), a motor assembly (3), a reduction mechanism (4), and a sleeve (5). The motor assembly (3) is connected to the handle (1), the output end of the motor assembly (3) is connected to the reduction mechanism (4), and the output end of the reduction mechanism (4) is connected to the sleeve (5). The handle (1) is characterized in that: a human-machine interaction module (11) is provided at the top of the inner cavity of the handle (1), a resistor module (12) is provided at the bottom of the inner cavity of the handle (1), a control module (13) is provided in the inner cavity of the handle (1), a limit mechanism (2) is provided inside the handle (1), and a limit reaction arm (6) is provided outside the reduction mechanism (4). The limiting mechanism (2) includes a tube (21), with a piston rod (22) and a piston body (25) slidably connected to both sides of the inner cavity of the tube (21). A locking arm (26) is connected to the bottom of the piston body (25), and a locking block (27) is connected to the outside of the locking arm (26). A first spring (24) is connected between the piston rod (22) and the tube (21).

2. The novel manual operation auxiliary device for disconnecting switches according to claim 1, characterized in that: The bottom of the piston rod (22) is provided with a C-shaped plate (23), and the bottom of the C-shaped plate (23) is provided with a wear-resistant pad.

3. The novel manual operation auxiliary device for disconnecting switches according to claim 1, characterized in that: The top of the tube (21) is connected to a liquid inlet (29), the top of the liquid inlet (29) is provided with a sealing plug, and the inner cavity of the liquid inlet (29) is provided with a flowing medium.

4. The novel manual operation auxiliary device for disconnecting switches according to claim 1, characterized in that: The inner cavity of the tube (21) is provided with a horizontal plate, and a second spring (28) is connected between the horizontal plate and the piston body (25).

5. The novel manual operation auxiliary device for disconnecting switches according to claim 1, characterized in that: The piston body (25) and piston rod (22) are both provided with sliding plates in their inner cavities, and the sliding plates are slidably connected to the inner cavity of the tube body (21).

6. The novel manual operation auxiliary device for disconnecting switches according to claim 1, characterized in that: The inner cavity of the deceleration mechanism (4) is provided with a three-stage planetary gear reducer. The output end of the three-stage planetary gear reducer is connected to the sleeve (5). The inner cavity of the sleeve (5) is provided with anti-slip texture.

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