A locking mechanism

Abstract

The utility model provides a kind of locking mechanism, including key lock component, clamping position insert and guide groove component, locking rotary operating switch is installed on key lock component by mounting assembly, fixedly equipped with shaft sleeve on square shaft, key lock component drives clamping position insert locking or release the shaft sleeve.The locking mechanism provided by the utility model is locked by using clamping position insert and the shaft sleeve on the square shaft of rotary operating switch, and the rotation of square shaft is limited, so as to realize the locking operation of rotary operating switch, and then effectively prevent the safety accident caused by misoperation of rotary operating switch;And by inserting one or more keys into key lock component, and rotating key makes key lock component simultaneously or separately drive clamping position insert sliding and release shaft sleeve, so that user can select single lock or multi-lock mode according to actual demand to release or lock the shaft sleeve on the square shaft of rotary operating switch, so as to enrich the use scene of the locking mechanism.

Description

Technical Field

[0001] This utility model relates to the field of power distribution system technology, and in particular to a locking mechanism. Background Technology

[0002] In industrial automated power supply and distribution systems, rotary switches are widely used in electrical equipment due to their simple operation and labor-saving nature. However, electrical safety is the most important indicator for electrical equipment. Ensuring the safe operation of switches and preventing misoperation or unauthorized use is a crucial aspect related to both equipment and personal safety. Besides multiple electrical control safeguards for the switches, mechanical locking is also necessary. Existing technologies use padlocks on the operating handles for simple mechanical obstruction, but this method lacks a mandatory operating procedure, carries the risk of omissions, and cannot meet the requirements of high-safety-level applications. Alternatively, fixed locks can be installed on the equipment door to restrict handle operation, but these methods are difficult to control due to manual operation, and the fixed locks can easily injure hands. Furthermore, fixed locks on the door occupy door space, thus encroaching on the installation space for electrical displays. Additionally, some locking devices are only applicable to specific models or sizes of rotary switches, lacking versatility. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing power distribution systems with external padlocks, which lack mandatory operation procedures, pose a risk of omission, and fail to meet the application requirements of high safety levels; or the use of external locks on equipment doors to restrict handle operation, which is difficult to control due to manual operation of the switch, and the risk of injury from external locks; furthermore, the use of external locks on doors occupies door space, thus encroaching on the installation space of electrical displays; and some locking devices are only applicable to specific models or sizes of rotary switches, resulting in poor versatility. Therefore, this utility model provides a locking mechanism.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a locking mechanism for locking a rotary operating switch, wherein the rotary operating switch has a square shaft and includes a plurality of key lock assemblies mounted on a door panel, a locking insert connected to the key lock assembly in a transmission manner, and a guide groove assembly for guiding the locking insert.

[0005] A bushing is fixedly sleeved on the square shaft, and the key lock assembly drives the locking insert to lock or release the bushing.

[0006] Furthermore, the key lock assembly includes an eccentric latch and a fixing pin disposed on the eccentric latch, the eccentric latch being connected to the locking plate via the fixing pin.

[0007] Furthermore, the locking insert includes a transmission part that is pulsatorically connected to the locking insert, a locking part for locking or releasing the bushing, and a connecting part that connects the transmission part and the locking part.

[0008] Furthermore, the transmission part is provided with a strip-shaped hole through which the fixing pin on the eccentric locking tongue passes.

[0009] Furthermore, the mounting assembly includes a mounting base fixedly connected to the rotary operating switch and a positioning plate fixedly connected to the key lock assembly.

[0010] Furthermore, the guide groove assembly includes a fixing plate fixedly connected to the positioning plate, the positioning plate is provided with a plurality of locking members for locking the fixing plate, and the fixing plate is provided with threaded holes for the locking members to pass through.

[0011] Furthermore, the guide groove assembly also includes a guide groove base plate, a first guide groove plate, a second guide groove plate, and a guide groove pressure plate. The guide groove base plate has a plurality of fixed flanges for fixed connection with the fixed plate.

[0012] Furthermore, the door panel is provided with two key lock assemblies, and the two key lock assemblies are respectively connected to a first locking plate and a second locking plate.

[0013] Furthermore, the first guide plate and the second guide plate are respectively provided with a first guide slot hole and a second guide slot hole. The first guide plate and the guide bottom plate form a first guide slot portion for guiding the first carding insert, and the first guide plate and the second guide plate form a second guide slot portion for guiding the second carding insert.

[0014] Furthermore, the fixing plate and the bottom plate of the guide groove have a first through hole for the connecting part of the first locking insert to pass through, and the fixing plate, the bottom plate of the guide groove and the guide groove plate have a second through hole for the connecting part of the second locking insert to pass through.

[0015] The advantages of the locking mechanism provided by this utility model are as follows: By using a locking insert to lock the bushing on the square shaft of the rotary operating switch and restricting the rotation of the square shaft, the rotary operating switch is locked, thereby effectively preventing safety accidents caused by misoperation of the rotary operating switch and providing mechanical protection for electrical safety, especially suitable for safety protection scenarios in industrial control equipment; Furthermore, by inserting one or more key locks into the key lock assembly and rotating the key to drive the locking insert to slide and release the bushing simultaneously or separately, the user can choose single-lock or multi-lock mode to release or lock the bushing on the square shaft of the rotary operating switch according to actual needs, thus enriching the application scenarios of this locking mechanism; In addition, in multi-lock mode, each key must be inserted and rotated simultaneously to unlock the rotary operating switch, enhancing the security of operation and access control functions; Moreover, this locking mechanism is compatible with various specifications of square shafts, has good versatility, is compact in structure, easy to install, and all parts can be made through sheet metal processing, which has good economic benefits. Attached Figure Description

[0016] Figure 1 A schematic diagram of the locking mechanism provided by this utility model;

[0017] Figure 2 A cross-sectional view of the locking mechanism provided by this utility model;

[0018] Figure 3 An exploded view of the locking mechanism provided by this utility model;

[0019] Figure 4 This is a schematic diagram of the key lock assembly in the locking mechanism provided by this utility model.

[0020] Figure 5 This is a schematic diagram of the locking mechanism provided by this utility model in the locked state;

[0021] Figure 6 This is a schematic diagram of the locking mechanism provided by this utility model in the released state;

[0022] Figure 7 This is a schematic diagram of the guide groove assembly in the locking mechanism provided by this utility model.

[0023] In the picture:

[0024] 100-Locking mechanism, 101-Door panel, 102-Rotary operating switch, 103-Shaft sleeve

[0025] 10-Key lock assembly, 11-Eccentric lock tongue, 12-Fixing pin, 20-Locking insert,

[0026] 201-First locking plate, 202-Second locking plate, 211-Transmission part, 212-Connecting part

[0027] 213-Locking part, 30-Guide groove assembly, 31-Fixing plate, 32-Guide groove bottom plate, 33-First guide groove plate,

[0028] 34-Second guide plate, 35-Guide plate pressure plate, 41-Mounting base, 42-Positioning plate, 421-Locking component. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] See Figure 1-7 The present invention provides a locking mechanism 100 for locking a rotary operating switch 102. The rotary operating switch 102 has a square shaft and includes several key lock assemblies 10 mounted on a door panel 101, locking inserts 20 connected to the key lock assemblies 10, and guide groove assemblies 30 for guiding the locking inserts 20. A bushing 103 is fixedly sleeved on the square shaft, and the key lock assemblies 10 drive the locking inserts 20 to lock or release the bushing 103. In the embodiment provided by the present invention, the locking mechanism 100 is positioned by locking the positioning hole of the rotary operating switch 102, thereby effectively improving the overall positioning accuracy of the locking mechanism 100. By using the locking insert 20 to lock the bushing 103 on the square shaft of the rotary operating switch 102 and restricting the rotation of the square shaft, the rotary operating switch 102 is locked, thereby effectively preventing safety accidents caused by misoperation of the rotary operating switch 102 and providing mechanical protection for electrical safety. This is especially suitable for safety protection scenarios in industrial control equipment. Furthermore, by inserting one or more key locks into the key lock assembly 10 and rotating the key, the key lock assembly 10 simultaneously or separately drives the locking insert 20 to slide and release the bushing 103. This allows users to select either a single-lock or multi-lock mode to release or lock the bushing 103 on the square shaft of the rotary operating switch 102 according to their actual needs, thereby enriching the application scenarios of the locking mechanism 100. Furthermore, in multi-lock mode, each key must be inserted and turned simultaneously to unlock the rotary operating switch 102, enhancing operational security and access control functions. In addition, the locking mechanism 100 is compatible with square shafts of various specifications, has good versatility, a compact structure, and is easy to install. All parts can be manufactured through sheet metal processing, making it highly economical.

[0031] like Figure 1 and Figure 4As shown, the key lock assembly 10 provided by this utility model includes an eccentric latch 11 and a fixing pin 12 disposed on the eccentric latch 11. The eccentric latch 11 is connected to the locking plate 20 via the fixing pin 12. By utilizing the fixing pin 12 to drive the locking plate 20, the stability of the transmission connection between the eccentric latch 11 and the locking plate 20 can be effectively ensured, as well as the stability of the eccentric latch 11 driving the locking plate 20 to slide. The locking plate 20 includes a transmission part 211 that is connected to the locking plate 20, a locking part 213 for locking or releasing the bushing 103, and a connecting part 212 that connects the transmission part 211 and the locking part 213. The transmission part 211 is provided with a strip-shaped hole through which the fixing pin 12 on the eccentric latch 11 passes. By inserting the fixing pin 12 on the eccentric locking tongue 11 into the slotted hole of the transmission part 211 of the locking insert 20, the eccentric locking tongue 11 can rotate 90°. During the rotation, the locking insert 20 is driven to slide up and down within the guide groove assembly 30, thereby causing the locking part 213 of the locking insert 20 to slide relative to the bushing 103. This allows the locking insert 20 to lock or release the bushing 103 on the square shaft of the rotary operating switch 102. In the embodiment provided by this utility model, when the locking insert 20 slides downward, it locks the sleeve, preventing it from rotating. Since the bushing 103 is fixedly sleeved on the square shaft and rotates synchronously with the square shaft, the rotary operating switch 102 cannot be operated. When the locking insert 20 slides upward, it releases the sleeve, at which point the rotary operating switch 102 can be operated.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the mounting assembly includes a mounting base 41 fixedly connected to the rotary operating switch 102 and a positioning plate 42 fixedly connected to the key lock assembly 10. By fixing the mounting base 41 to the mounting hole of the rotary operating switch 102 and adjusting the position between the key lock assembly 10 and the square shaft of the rotary operating switch 102 using the mounting base 41, the positioning accuracy between the locking insert 20 on the key lock assembly 10 and the bushing 103 on the square shaft can be effectively improved, ensuring that the locking insert 20 abuts against the bushing 103 and can lock or release the bushing 103. By fixing the positioning plate 42 using the mounting hole of the key lock assembly 10, the positioning accuracy of the key lock assembly 10 and other components within the locking mechanism 100, such as the guide groove assembly 30, can be effectively guaranteed during installation, and offset during use can be avoided.

[0033] like Figure 3 and Figure 7As shown, the guide groove assembly 30 includes a fixing plate 31 fixedly connected to the positioning plate 42. The positioning plate 42 has a plurality of locking elements 421 for locking the fixing plate 31, and the fixing plate 31 has threaded holes for the locking elements 421 to pass through. By fixing the fixing plate 31 to the mounting base 41 and the mechanism positioning plate 42, the guide groove assembly 30 and other components within the locking mechanism 100 can be effectively supported, ensuring the overall stability of the locking mechanism 100. Furthermore, by inserting the locking elements 421, such as bolts, studs, and pins, on the positioning plate 42 into the threaded holes on the fixing plate 31, the stability of the fixed connection between the fixing plate 31 and the positioning plate 42 can be effectively guaranteed.

[0034] like Figure 3 and Figure 7 As shown, the guide groove assembly 30 provided by this utility model further includes a guide groove base plate 32, a first guide groove plate 33, a second guide groove plate 34, and a guide groove pressure plate 35. The guide groove base plate 32 has a plurality of fixing flanges for fixing to the fixing plate 31. By fixing the fixing flanges of the guide groove base plate 32 to the locking member 421 on the fixing plate 31, the stability of the fixing connection between the guide groove base plate 32 and the fixing plate 31 can be effectively guaranteed. Furthermore, by pressing and fixing the guide groove base plate 32, the first guide groove plate 33, and the second guide groove plate 34 onto the fixing plate 31 using the guide groove pressure plate 35, the stability of the guide groove assembly 30 installed on the positioning plate 42 can be effectively guaranteed.

[0035] like Figure 2 , Figure 5 and Figure 6 As shown in the embodiment provided by this utility model, two key lock assemblies 10 are provided on the door panel 101, and a first locking plate 201 and a second locking plate 202 are respectively connected to the two key lock assemblies 10. Each key lock assembly 10 corresponds to a locking plate 20, which can lock or release the locking block of the bushing 103 on the square shaft individually. In other embodiments, the door panel 101 may also be provided with one key lock assembly 10 to lock or release the locking block of the bushing 103 on the square shaft individually, or three or more key lock assemblies 10 to lock or release the locking block of the bushing 103 on the square shaft. In the multi-lock mode, the square shaft can only rotate after all the locking plates 20 on the key lock assemblies 10 have released the bushing 103 on the square shaft, and the rotary operation switch 102 can only perform the closing operation.

[0036] like Figure 3 and Figure 7As shown in the embodiment provided by this utility model, the first guide plate 33 and the second guide plate 34 respectively have a first guide groove hole and a second guide groove hole. The first guide plate 33 and the guide groove bottom plate 32 form a first guide groove portion for guiding the first locking insert 201, and the first guide plate 33 and the second guide plate 34 form a second guide groove portion for guiding the second locking insert 202. By sliding the first locking insert 201 and the second locking insert 202 in the first guide groove portion formed by the first guide plate 33 and the guide groove bottom plate 32 and the second guide groove portion formed by the first guide plate 33 and the second guide groove 34, the sliding of the first locking insert 201 and the second locking insert 202 can be effectively guaranteed to be stable during the sliding process, improving the accuracy of locking, and at the same time, it can withstand the force generated when the switch is rotated in the locked state, ensuring that the rotation operation switch 102 cannot be operated.

[0037] like Figure 3 and Figure 7 As shown, the fixing plate 31 and the guide groove bottom plate 32 have first through holes for the connecting portion 212 of the first locking insert 201 to pass through, and the fixing plate 31, the guide groove bottom plate 32, and the first guide groove plate 33 have second through holes for the connecting portion 212 of the second locking insert 202 to pass through. Through the first through holes on the fixing plate 31 and the guide groove bottom plate 32, and the second through holes on the fixing plate 31, the guide groove bottom plate 32, and the guide groove plate, the positioning accuracy between the first locking insert 201 and the second locking insert 202 and the first guide groove portion and the second guide groove portion can be effectively improved, ensuring the stability of the sliding of the first locking insert 201 and the second locking insert 202 within the first guide groove portion and the second guide groove portion.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A locking mechanism for locking a rotary operating switch (102), the rotary operating switch (102) having a square shaft, characterized in that, It includes several key lock assemblies (10) installed on the door panel (101), a locking insert (20) that is pulsatorically connected to the key lock assembly (10), and a guide groove assembly (30) for guiding the locking insert (20); A bushing (103) is fixedly sleeved on the square shaft, and the key lock assembly (10) drives the locking insert (20) to lock or release the bushing (103).

2. The locking mechanism as described in claim 1, characterized in that, The key lock assembly (10) includes an eccentric latch (11) and a fixing pin (12) disposed on the eccentric latch (11). The eccentric latch (11) is connected to the locking plate (20) via the fixing pin (12).

3. A locking mechanism as described in claim 2, characterized in that, The locking insert (20) includes a transmission part (211) that is pulsatorically connected to the locking insert (20), a locking part (213) for locking or releasing the bushing (103), and a connecting part (212) that connects the transmission part (211) and the locking part (213).

4. A locking mechanism as described in claim 3, characterized in that, The transmission part (211) is provided with a strip hole through which the fixing pin (12) on the eccentric locking tongue (11) passes.

5. A locking mechanism as described in claim 3, characterized in that, The mounting assembly includes a mounting base (41) fixedly connected to the rotary operating switch (102) and a positioning plate (42) fixedly connected to the key lock assembly (10).

6. A locking mechanism as described in claim 5, characterized in that, The guide groove assembly (30) includes a fixing plate (31) fixedly connected to the positioning plate (42). The positioning plate (42) is provided with a plurality of locking members (421) for locking the fixing plate (31). The fixing plate (31) is provided with threaded holes for the locking members (421) to pass through.

7. A locking mechanism as described in claim 6, characterized in that, The guide groove assembly (30) further includes a guide groove base plate (32), a first guide groove plate (33), a second guide groove plate (34) and a guide groove pressure plate (35). The guide groove base plate (32) has a plurality of fixed flanges for fixed connection with the fixed plate (31).

8. A locking mechanism as described in claim 7, characterized in that, The door panel (101) is provided with two key lock assemblies (10), and the two key lock assemblies (10) are respectively connected to a first locking plate (201) and a second locking plate (202).

9. A locking mechanism as described in claim 8, characterized in that, The first guide plate (33) and the second guide plate (34) have a first guide hole and a second guide hole, respectively. The first guide plate (33) and the guide bottom plate (32) form a first guide groove portion for guiding the first card insert (201), and the first guide plate (33) and the second guide plate (34) form a second guide groove portion for guiding the second card insert (202).

10. A locking mechanism as described in claim 8, characterized in that, The fixing plate (31) and the guide groove bottom plate (32) have a first through hole for the connecting part (212) of the first carding insert (201) to pass through, and the fixing plate (31), the guide groove bottom plate (32) and the first guide groove plate (33) have a second through hole for the connecting part (212) of the second carding insert (202) to pass through.

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