Locking auxiliary device suitable for equipment control handle
By designing a locking auxiliary device on the equipment control handle and using a fixed base and a rotating lock to cooperate with the lock, the problem of misoperation of the control handle is solved, and safety and operational convenience are improved.
Patent Information
- Application Number
- CN202422422341.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The existing equipment control handles lack effective locking devices, resulting in a high risk of misoperation and posing a safety hazard.
A locking auxiliary device is designed, which includes a fixed base, a rotating lock and a lock adjustment structure. By cooperating with the lock, the control handle is locked to prevent misoperation.
It effectively prevents the control handle from misoperating, reduces the risk of safety accidents, is easy to install and does not take up too much space, and is simple to operate.
Smart Images
Figure CN223410604U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power auxiliary equipment, in particular to a locking auxiliary device suitable for a control handle of an equipment. Background Art
[0002] Control handles are widely used in a variety of equipment and devices. In the power system, in order to work on equipment and lines that have been powered off, it is necessary to close the grounding knife or hang the grounding wire on the equipment within the working range. No circuit breaker (switch) or fuse should be connected between the grounding wire, the grounding knife switch and the maintenance equipment. If a circuit breaker is connected between the grounding knife switch and the maintenance equipment due to equipment reasons, the circuit breaker control panel is equipped with an "open / close" control handle. After the grounding knife switch and the circuit breaker are closed, measures should be taken to ensure that the circuit breaker will not open. The start and stop (rotation) of mechanical equipment is achieved through the equipment control handle, which usually has three states: "automatic, manual, cut-off" or "open (increase), stop, close (decrease)".
[0003] Because the control handles of the circuit breaker and the equipment are not equipped with effective locking devices, in order to ensure that the circuit breaker will not be tripped, the control handle is switched to the "trip position" and a warning sign is hung; when the equipment is shut down, under maintenance or the operating mode is changed, the control handle is switched to the "cut off" or "stop" position and a warning sign is also hung to remind people.
[0004] This method of using signboards to remind people poses a safety risk. If the signboard falls or the relevant personnel forget to place the signboard, the personnel may accidentally operate the control handle, which will cause the circuit breaker or equipment to malfunction (incorrect rotation), resulting in personal injury to the operator and damage to the equipment. It is necessary to lock the handle in a limited space to avoid such accidents from happening at the root. Utility Model Content
[0005] In response to the technical problems existing in the background technology, the purpose of the utility model is to provide a locking auxiliary device suitable for the equipment control handle. The device is arranged corresponding to the handle lock hole and cooperates with the lock to lock the control handle to prevent the handle from being operated incorrectly.
[0006] In order to achieve the above purpose, the technical solution provided by the utility model is:
[0007] A locking auxiliary device suitable for a control handle of an equipment, the locking auxiliary device includes a fixed base, a control handle and a rotating lock buckle, the fixed base is arranged corresponding to the control handle, the fixed base includes a base with a rotating shaft hole, the rotating lock buckle includes a rotating arm body and a rotating shaft, the front end of the rotating arm body is provided with a lock hole, and the rear end is provided with a one-way rotating structure, the rotating shaft is arranged inside the one-way rotating structure, and the connecting shaft passes through the one-way rotating structure and the rotating shaft hole to rotatably install the rotating lock buckle on the inner side of the fixed base.
[0008] Preferably, the one-way rotation structure includes a ratchet, which is arranged on one side of the rotating arm body and is rotatably sleeved on the rotating shaft.
[0009] Preferably, the locking auxiliary device further comprises a lock buckle adjustment structure, which is used to rotate and fix the rotating lock buckle, and the base is provided with a rotating arm hole corresponding to the lock buckle adjustment structure.
[0010] Preferably, the lock adjustment structure includes a rotating arm, a pawl and a spring, the pawl is engaged with the ratchet and the rotating arm is connected to the pawl, the rotating arm is arranged in the rotating arm hole, and moves with the shape of the rotating arm hole.
[0011] Preferably, a spring bracket is provided at one end of the base, the other end of the spring is fixed on the spring bracket, the spring bracket is provided on the side wall of the base, and the pawl is fixed to one end of the spring.
[0012] Preferably, a handle lock hole is opened in the control handle corresponding to the lock hole, and the handle lock hole and the lock hole are penetrated and locked by a lock.
[0013] The utility model has the following advantages and beneficial effects:
[0014] 1. In the present invention, the device is set corresponding to the control handle and is used in conjunction with the lock to lock the control handle. The locking reliability is high, which effectively prevents the handle from malfunctioning and avoids the occurrence of safety accidents. The device is easy to install, simple to operate and takes up little space. It can be stored when not in use without affecting the normal operation of the control handle.
[0015] Second, the device of the present invention has a simple structure and is easy to operate. It can be used in conjunction with a lock to lock the control handle to prevent accidental operation of the handle. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 1 is a schematic structural diagram of a locking auxiliary device in use according to an embodiment of the present application;
[0017] Figure 2 1 is a schematic structural diagram of a locking auxiliary device in a non-use state according to an embodiment of the present application;
[0018] Figure 3 1 is a schematic structural diagram of a fixed base of a locking auxiliary device shown in an embodiment of the present application;
[0019] Figure 4 1 is a schematic structural diagram of a rotating lock and a lock adjustment structure of a locking auxiliary device shown in an embodiment of the present application;
[0020] Icons: 1-cabinet; 2-fixed base; 3-rotating lock; 4-lock adjustment structure; 11-control handle; 12-indicator panel; 13-handle lock hole; 21-base; 22-spring bracket; 23-rotating shaft hole; 24-rotating arm hole; 31-rotating arm body; 32-rotating lock lock hole; 33-rotating shaft; 34-ratchet; 41-pawl; 42-rotating arm; 43-spring, 5-lock. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.
[0023] Example
[0024] like Figure 1 、 2 As shown, a locking auxiliary device for an equipment control handle includes a fixed base 2, a rotating lock 3, a lock adjustment structure 4, and a control handle 11. The fixed base 2 is fixed to a specific position on the cabinet 1 where the control handle 11 is located by fastening nuts and bolts, welding, or using special materials, so that the fixed base 2 and the control handle 11 are correspondingly arranged. The cabinet 1 is provided with an indicator panel 12 for providing operating instructions.
[0025] like Figure 3 As shown, the fixed base 2 includes a base 21, a rotating shaft hole 23, and a rotating arm hole 24. A spring bracket 22 is provided at one end of the base 21, which is used to fix the spring 43. The rotating shaft hole 23 is movably connected to the rotating shaft 33, allowing the rotating lock 3 to rotate as a whole. The rotating arm hole 24 is used to support the rotating arm 42, one end of which extends from the rotating arm hole 24. The rotating arm hole 24 is configured to be arc-shaped, and the rotating arm 42 moves along the shape of the rotating arm hole 24.
[0026] like Figure 4As shown, the rotating lock 3 includes a rotating arm body 31, a rotating lock lock hole 32, a one-way rotating structure and a rotating shaft 33. The rotating arm body 31 is an "n" type structure. The rotating lock lock hole 32 is set at the front end groove of the rotating arm body 31. The rotating shaft 33 passes through the one-way rotating structure and the rotating shaft hole 23 to rotate the rotating lock 3 and install it on the inner side of the fixed base 2.
[0027] The one-way rotation structure includes a ratchet 34, a rotating shaft 33 fixedly connected to the rotating arm body 31 and the ratchet 34, and movably connected to the rotating shaft hole 23, so that it can rotate simultaneously with the rotating arm body 31 and the ratchet 34; the rotating lock hole 32 is used to hang the mechanical lock 5, and cooperates with the handle lock hole 13 to ensure that the switch cannot be operated after being locked.
[0028] A lock adjustment structure 4 is provided corresponding to the rotating lock catch 3. The lock adjustment structure 4 can lock the rotating lock catch 3 at any angle and keep it stationary. The lock adjustment structure 4 includes a pawl 41, a rotating support arm 42, and a spring 43. The pawl 41 cooperates with the ratchet 34 to lock and release the rotating lock catch 3; one end of the spring 43 is fixed to the spring bracket 22, which is provided on the side wall of the base 21. The pawl 41 is fixed to the other end of the spring 43. The rotating support arm 42 is fixedly connected to the pawl 41 and is used to control the rotation of the pawl 41, so that the spring 43 is in a compressed state, allowing the pawl 41 and the ratchet 34 to open a certain angle, thereby separating the pawl 41 from the ratchet 34; the spring 43 is fixed to the pawl 41. Under normal circumstances, the spring 43 is in an extended state, so that the pawl 41 engages with the ratchet 34, thereby locking the rotating lock catch 3.
[0029] Working Principle: The fixed base 2 is fixed to a specific position on the cabinet 1 where the control handle 11 is located by tightening nuts and bolts, welding, or using special materials. Under normal conditions, the spring 43 of the lock adjustment structure 4 is in an extended state, causing the pawl 41 to engage with the ratchet 34, thereby locking the rotating lock 3 in the vertical position. When in use, the rotating support arm 42 is rotated to make the rotating support arm 42 rotate in the rotating support arm hole 24, so that the spring 43 is in a compressed state, allowing the pawl 41 and the ratchet 34 to open a certain angle, so that the pawl 41 and the ratchet 34 are separated, and the rotating arm body 31 can be moved to drive the rotating lock buckle 3 to rotate to the horizontal direction, so that the handle lock hole 13 is aligned with the rotating lock buckle lock hole 32 and the rotating lock buckle lock hole 32. After releasing the rotating support arm 42, the spring 43 returns to the extended state, so that the pawl 41 engages with the ratchet 34, locking the rotating lock buckle 3 in the horizontal position, and hanging the lock device 5 in the handle lock hole 13, the rotating lock buckle lock hole 32, and the rotating lock buckle lock hole 32, so that the control handle 11 cannot be rotated.
[0030] During the unlocking process, after the lock 5 is removed, the spring 43 is compressed by rotating the rotating arm 42, so that the pawl 41 and the ratchet 34 are opened to a certain angle, so that the pawl 41 and the ratchet 34 are separated, and the rotating lock 3 returns to the vertical position under the action of gravity. When the rotating arm 42 is released, the spring 43 returns to the extended state, so that the pawl 41 and the ratchet 34 are engaged, and the rotating lock 3 is locked in the vertical position.
[0031] The above are only preferred embodiments of the present invention and are not intended to be used to define the present invention. For those skilled in the art, the present invention may be subject to various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.
Claims
1. A locking auxiliary device suitable for a device control handle, characterized in that: The locking auxiliary device includes a fixed base, a control handle and a rotating lock buckle. The fixed base is arranged corresponding to the control handle. The fixed base includes a base with a rotating shaft hole. The rotating lock buckle includes a rotating arm body and a rotating shaft. The front end of the rotating arm body is provided with a lock hole, and the rear end is provided with a one-way rotation structure. The rotating shaft is arranged inside the one-way rotation structure, and the connecting shaft passes through the one-way rotation structure and the rotating shaft hole to rotatably install the rotating lock buckle on the inner side of the fixed base.
2. The locking auxiliary device for a device control handle according to claim 1, characterized in that: The one-way rotation structure includes a ratchet, which is arranged on one side of the rotating arm body and is rotatably sleeved on the rotating shaft.
3. The locking auxiliary device for a device control handle according to claim 2, characterized in that: The locking auxiliary device also includes a lock buckle adjustment structure, which is used to rotate and fix the rotating lock buckle. The base is provided with a rotating arm hole corresponding to the lock buckle adjustment structure.
4. The locking auxiliary device for a device control handle according to claim 3, characterized in that: The lock adjustment structure includes a rotating support arm, a pawl and a spring. The pawl is engaged with the ratchet and the rotating support arm is connected to the pawl. The rotating support arm is arranged in the rotating support arm hole and moves with the shape of the rotating support arm hole.
5. The locking auxiliary device for a device control handle according to claim 4, characterized in that: A spring bracket is provided at one end of the base, the other end of the spring is fixed on the spring bracket, the spring bracket is provided on the side wall of the base, and the pawl is fixed to one end of the spring.
6. The locking auxiliary device for a device control handle according to claim 2, characterized in that: The control handle is provided with a handle locking hole corresponding to the locking hole, and the handle locking hole and the locking hole are penetrated and locked by a lock.