CN220933937U

CN220933937U - Linkage safety lock

Info

Publication number: CN220933937U
Application number: CN202322854344.6U
Authority: CN
Inventors: 徐银姣; 殷玉光; 陈宇麟
Original assignee: Guangzhou King Highland Mechanical & Electrical Co ltd
Current assignee: Guangzhou King Highland Mechanical & Electrical Co ltd
Priority date: 2023-10-23
Filing date: 2023-10-23
Publication date: 2024-05-10
Anticipated expiration: 2033-10-23

Abstract

The utility model discloses a linkage safety lock, which comprises an operation assembly, a driven assembly and a linkage shaft, wherein the operation assembly is connected with the driven assembly; the operating component is arranged on the equipment and comprises an operating rod capable of moving back and forth between a first position and a second position and a locking structure for locking the operating rod in the first position; the driven component is arranged on the electric cabinet and comprises a driven piece connected with the switch, and the driven piece can move back and forth between a third position and a fourth position so as to drive the switch to close or open the electric cabinet; one end of the linkage shaft is connected with the operating rod, and the other end of the linkage shaft is connected with the driven piece so as to drive the driven piece to move back and forth between the third position and the fourth position when the operating rod moves back and forth between the first position and the second position. When the operating rod is at the first position, the driven piece is at the third position, namely the switch is at the closing gear, and the locking structure is used for locking the operating rod to lock the switch, so that the remote electric cabinet is prevented from being electrified by a person in an operation way, and the requirement of safe power failure is met.

Description

Linkage safety lock

Technical Field

The utility model relates to the technical field of safety locks, in particular to a linkage safety lock.

Background

At present, because the distance between the equipment and the electric cabinet is far, whether the equipment is operated by related personnel or works nearby the equipment is difficult to determine by workers, safety switching on and off is difficult to ensure, and potential safety hazards exist.

Disclosure of utility model

The utility model aims to solve the technical problems that: the distance between the equipment and the electric cabinet is far, and whether the equipment is operated by related personnel or works nearby the equipment is difficult to determine by workers, and safety switching on and off is difficult to ensure, so that potential safety hazards exist.

In order to solve the technical problems, the utility model provides a linkage safety lock which is arranged between equipment and an electric cabinet, wherein the electric cabinet comprises a switch for controlling the electric cabinet to be opened and closed, and the linkage safety lock comprises:

an operating assembly mounted on the device, the operating assembly comprising an operating lever movable back and forth between a first position and a second position and locking structure for locking the operating lever in the first position;

The driven component is arranged on the electric cabinet and comprises a driven piece connected with the switch, and the driven piece can move back and forth between a third position and a fourth position so as to drive the switch to close or open the electric cabinet; and

And one end of the linkage shaft is connected with the operating rod, and the other end of the linkage shaft is connected with the driven piece, so that when the operating rod moves back and forth between the first position and the second position, the driven piece is driven to move back and forth between the third position and the fourth position.

In some embodiments, the operating assembly further comprises a first mount mounted on the device, the lever is hinged to the first mount, and the locking structure is mounted on the first mount.

In some embodiments, the first mounting frame includes a first bracket and a second bracket, the first bracket is mounted on the device, the second bracket is connected with the first bracket and is perpendicular to the first bracket, the operating rod is hinged with the first bracket, and the linkage shaft passes through the second bracket and is hinged with the operating rod.

In some embodiments, the lever has a locking hole;

The locking structure comprises an outer cover, an installation seat, a locking assembly, a key and an elastic piece, wherein the installation seat is fixed on the first installation frame, the outer cover is arranged on the installation seat and is connected with the first installation frame, the outer cover is provided with a first through hole and a second through hole, the operating rod passes through the first through hole and is hinged with the first installation frame, the locking assembly is slidably arranged on the installation seat, one end of the elastic piece is in butt joint with the inner wall of the installation seat, and the other end of the elastic piece is in butt joint with one side of the locking assembly, which is away from the locking hole;

The elastic piece is used for providing elastic force to enable the locking assembly to be matched with the locking hole when the operating rod is locked at the first position; when the key passes through the second through hole to be matched with the locking assembly, the key is rotated to drive the locking assembly to be disengaged from the locking hole.

In some embodiments, the mounting seat is provided with a connecting piece, and the elastic piece is sleeved on the connecting piece;

The locking assembly comprises a lock seat with a key hole and a lock tongue, the lock seat is slidably connected to the connecting piece, one end of the elastic piece is abutted to the inner wall of the mounting seat, the other end of the elastic piece is abutted to one side, deviating from the lock hole, of the lock seat, the lock tongue is arranged on the lock seat, and the tail end of the lock tongue is matched with the lock hole.

In some embodiments, the driven component further comprises a second mounting frame, the driven component is provided with a third through hole, the second mounting frame is mounted on the electric cabinet, the second mounting frame is arranged on the periphery side of the switch in a surrounding mode, the toggle key of the switch is exposed out of the second mounting frame and is positioned in the third through hole, and the driven component is connected with the second mounting frame in a rotating mode;

and when the driven piece moves back and forth between the third position and the fourth position, the toggle key is driven to close or open the electric cabinet.

In some embodiments, the second mounting frame includes a housing having a fourth through hole and a connecting plate, the housing is disposed around the switch, and the toggle key is connected to the third through hole through the fourth through hole;

The connecting plate is connected with the housing, the driven piece is rotatably connected to the housing, and the linkage shaft penetrates through the connecting plate to be connected with the driven piece.

In some embodiments, the driven member includes a first support plate, a second support plate, and a third support plate having the third through hole, where the second support plate and the third support plate are disposed opposite to each other at two ends of the first support plate and are perpendicular to the first support plate, the second support plate and the third support plate are rotatably connected to the second mounting frame, and the second support plate is connected to the linkage shaft.

In some embodiments, an end of the second support plate, which is far away from the second mounting frame, is provided with an extension part, the extension part is provided with a mounting part, and the linkage shaft penetrates through the second mounting frame to be connected with the mounting part.

In some embodiments, the lever has a handle at an end remote from the linkage shaft.

Compared with the prior art, the linkage safety lock has the beneficial effects that:

The operating rod is connected with the driven piece through the linkage shaft to realize synchronous linkage between the operating rod and the driven piece, when the operating rod is in the first position, the driven piece is in the third position, the switch is in the closed gear, namely, the electric cabinet is not opened, a worker can lock the operating rod in the first position by utilizing the locking structure, so that the operating rod cannot move, the movement of the driven piece is limited, the switch is locked, the remote electric cabinet is prevented from being electrified by someone operation, and the requirement of safe power failure is met; when the electric cabinet needs to be opened, the locking structure releases the locking of the operating rod, the operating rod moves to the second position, the driven piece is driven to move to the fourth position through the linkage shaft, and the switch is in the opening gear, namely, the electric cabinet is opened, so that the equipment can operate.

Drawings

FIG. 1 is a schematic view of a linkage safety lock according to an embodiment of the present utility model;

FIG. 2 is a side view of a ganged security lock provided by an embodiment of the present utility model;

FIG. 3 is a schematic view of an operation assembly and a linkage shaft according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a mounting base and locking assembly according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a switch, a driven assembly and a linkage shaft according to an embodiment of the present utility model;

FIG. 6 is a schematic structural view of a driven assembly provided by an embodiment of the present utility model;

100, a linkage safety lock; 110. an operating assembly; 111. an operation lever; 1111. an operation handle; 112. a locking structure; 1121. an outer cover; 11211. a first through hole; 11212. a second through hole; 1122. a mounting base; 11221. a connecting piece; 1123. a locking assembly; 11231. a lock base; 112311, key holes; 11232. a bolt; 1124. a key; 1125. an elastic member; 113. a first mounting frame; 1131. a first bracket; 1132. a second bracket; 120. a driven assembly; 121. a follower; 1211. a third through hole; 1212. a first support plate; 1213. a second support plate; 12131. an extension; 12132. a mounting part; 1214. a third support plate; 122. a second mounting frame; 1221. a housing; 12211. a fourth through hole; 12212. a first support wall; 12213. a second support wall; 12214. a third support wall; 1222. a connecting plate; 12221. a first connection plate; 12222. a second connecting plate; 12223. a third connecting plate; 130. a linkage shaft; 200. and (3) a switch.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1 and 2, the embodiment of the present utility model provides a linkage safety lock 100, which is installed between equipment and an electric cabinet, wherein the electric cabinet comprises a switch 200 for controlling the opening and closing of the electric cabinet, the linkage safety lock 100 comprises an operation assembly 110, a driven assembly 120 and a linkage shaft 130, the operation assembly 110 is installed on the equipment, the operation assembly 110 comprises an operation rod 111 capable of moving back and forth between a first position and a second position, and a locking structure 112 for locking the operation rod 111 in the first position; the driven component 120 is mounted on the electric cabinet, the driven component 120 comprises a driven piece 121 connected with the switch 200, and the driven piece 121 can move back and forth between a third position and a fourth position so as to drive the switch 200 to close or open the electric cabinet; one end of the linkage shaft 130 is connected to the operation rod 111, and the other end is connected to the driven member 121, so that when the operation rod 111 moves back and forth between the first position and the second position, the driven member 121 is driven to move back and forth between the third position and the fourth position.

The operation rod 111 in this embodiment is connected to the driven member 121 through the linkage shaft 130 to realize synchronous linkage between the operation rod 111 and the driven member 121, when the operation rod 111 is in the first position, the driven member 121 is in the third position, and the switch 200 is in the closed gear, that is, the electric cabinet is not opened, and the operator can lock the operation rod 111 in the first position by using the locking structure 112, so that the operation rod 111 cannot move to limit the movement of the driven member 121 and lock the switch, thereby preventing the electric cabinet at the far end from being electrified by someone operation and meeting the requirement of safe power failure; when the electric cabinet needs to be opened, the locking structure 112 releases the locking of the operating rod 111, the operating rod 111 moves to the second position, the driven member 121 is driven to move to the fourth position by the linkage shaft 130, and at this time, the switch 200 is in the opening gear, that is, the electric cabinet is opened, so that the equipment can perform operation.

It should be noted that, the switch 200 of the electric cabinet in this embodiment is an air switch, and the driven member 121 is connected with a toggle key of the air switch, so that when the driven member 121 moves back and forth between the third position and the fourth position, the toggle key can be driven to toggle up and down, so as to realize opening and closing of the electric cabinet.

In some embodiments, the operating assembly 110 further includes a first mounting bracket 113, the first mounting bracket 113 is mounted on the apparatus, the operating lever 111 is hinged to the first mounting bracket 113, the locking structure 112 is mounted on the first mounting bracket 113, and the operating lever 111 and the locking structure 112 are fixed on the apparatus through the first mounting bracket 113, so that the stability of the mounting of the operating lever 111 and the locking structure 112 is improved.

Referring to fig. 3 together, the first mounting frame 113 includes a first bracket 1131 and a second bracket 1132, where the first bracket 1131 is mounted on the device for fixing, and is used for mounting the operating rod 111 and the locking structure 112. The second support 1132 is connected to the first support 1131, and is disposed perpendicular to the first support 1131, the operation rod 111 is hinged to the first support 1131, the linkage shaft 130 is hinged to the operation rod 111 through the second support 1132, and the second support 1132 plays a role in installing the linkage shaft 130. Preferably, the first bracket 1131 is in an i-shape, and the i-shape structure may make the first mounting bracket 113 more stably fixed to the apparatus.

Referring to fig. 4 together, the operation lever 111 has a locking hole; the locking structure 112 includes a housing 1121, a mount 1122, a locking component 1123, a key 1124 and an elastic member 1125, the mount 1122 is fixed on the first mounting frame 113, the locking component 1123 is slidably disposed on the mount 1122, and the mount 1122 is used for mounting the locking component 1123, so as to provide a carrier space for sliding of the locking component 1123; the outer cover 1121 is arranged on the mounting seat 1122 and connected with the first mounting frame 113, and the outer cover 1121 plays a role of protecting the mounting seat 1122 and the locking component 1123; the housing 1121 has a first through hole 11211 and a second through hole 11212, and the operation lever 111 passes through the first through hole 11211 and is hinged to the first mounting bracket 113; one end of the elastic member 1125 abuts against the inner wall of the mount 1122, and the other end abuts against a side of the locking member 1123 facing away from the locking hole.

When the operation rod 111 is locked at the first position, the elastic piece 1125 provides elastic force to enable the locking component 1123 to be matched with the locking hole, so that when the electric cabinet is not opened, the locking structure 112 can limit the movement of the driven piece 121 through locking the operation rod 111, further lock the switch 200, prevent the remote electric cabinet from being electrified by a person operation, and meet the requirement of safe power off. When unlocking is required, the key 1124 passes through the second through hole 11212 to be matched with the locking component 1123, and the key 1124 is turned to apply force to the locking component 1123, so that the locking component 1123 overcomes the elastic force of the elastic piece, and the locking component 1123 is driven to move by the key 1124 to be disengaged from the locking hole.

In some embodiments, the mounting base 1122 is provided with a connecting piece 11221, and the elastic piece 1125 is sleeved on the connecting piece 11221; the locking component 1123 comprises a lock seat 11231 with a key hole 112311 and a lock tongue 11232, the lock seat 11231 is connected to the connecting piece 11221 in a sliding way, and the connecting piece 11221 can provide support for the sliding of the lock seat 11231 and can also play a role in guiding; one end of the elastic piece 1125 is abutted against the inner wall of the mounting seat 1122, and the other end is abutted against one side of the lock seat 11231 away from the locking hole, so as to provide elastic force to prevent the lock tongue 11232 from being disengaged from the locking hole when the lock tongue 11232 is engaged with the locking hole; the lock tongue 11232 is disposed on the lock base 11231, and the end of the lock tongue 11232 is adapted to the locking hole.

When the latch 11232 is inserted into the locking hole, the hinge portion of the first mounting bracket 113 may cooperate with each other to function as the locking lever 111. The mounting seat 1122 in this embodiment is provided with a through hole for the lock tongue 11232 to pass through to be matched with the locking hole; further, in some embodiments, the locking tongue 11232 may also be taller than the side wall of the mount 1122 so that the locking tongue 11232 directly mates with the locking aperture.

It will be appreciated that when the lever 111 is in the second position, the locking tongue 11232 does not affect the lever 111 even when passing through the through hole, and only when locking is required, the locking tongue 11232 can be retracted back into the through hole by rotating the key 1124; when the operating lever 111 is in the first position, the key 1124 is used to rotate, and then the lock tongue 11232 is driven to connect with the locking hole. That is, the key 1124 can be inserted into the key hole 112311 all the time, when the locking of the lock tongue 11232 and the locking hole needs to be released, the key 1124 needs to rotate to apply force to the lock seat 11231 so as to overcome the elastic force of the elastic member 1125, and the key 1124 cannot be taken out through the second through hole 11212 due to the rotation of the key 1124, so that the lock tongue 11232 is in a retracted state; when the operation lever 111 is required to be locked, the key 1124 is turned, and at this time, the key 1124 can be removed, and the locking tongue 11232 is engaged with the locking hole by the elastic force of the elastic member 1125. The key 1124 may be removed, and the above steps may be used to perform the operations when unlocking or performing the related operations are required, and details thereof will not be described here.

Referring to fig. 5 and 6 together, the driven component 120 further includes a second mounting frame 122, the driven member 121 has a third through hole 1211, the second mounting frame 122 is mounted on the electric cabinet, the second mounting frame 122 is enclosed on the periphery of the switch 200, the driven member 121 is rotationally connected with the second mounting frame 122, and the toggle key of the switch 200 is exposed out of the second mounting frame 122 and is located in the third through hole 1211, so that when the driven member 121 moves back and forth between the third position and the fourth position, the toggle key is driven to toggle up and down to close or open the electric cabinet.

It should be noted that, in this embodiment, the rotation direction is the same as the toggle direction of the toggle key, that is, the follower 121 rotates along the toggle direction of the toggle key, so that the toggle key is toggled to close or open the electric cabinet when the follower 121 rotates.

In some embodiments, the follower 121 includes a first support plate 1212, a second support plate 1213, and a third support plate 1214 with a third through hole 1211, the second support plate 1213 and the third support plate 1214 are disposed opposite to each other at two ends of the first support plate 1212, the second support plate 1213 and the third support plate 1214 are disposed perpendicular to the first support plate 1212, the follower 121 is in a shape of "pi" at this time, the second support plate 1213 and the third support plate 1214 may be understood as extending from two ends of the first support plate 1212 to one side, and the first support plate 1212, the second support plate 1213, and the third support plate 1214 may be integrally formed by welding and injection molding, or may be understood as a split structure of assembly, which is not particularly limited herein.

In addition, the second support plate 1213, the third support plate 1214 are rotatably connected with the second mounting frame 122, specifically, the second mounting frame 122, the second support plate 1213 and the third support plate 1214 are all provided with rotation holes, and two rotation shafts respectively pass through the second support plate 1213 and the second mounting frame 122, the third support plate 1214 and the second mounting frame 122, so as to fix the second support plate 1213 and the third support plate 1214 on the second mounting frame 122, and realize that the second support plate 1213 and the third support plate 1214 respectively rotate relative to the second mounting frame 122 around the corresponding rotation shafts. The second support plate 1213 in the present embodiment is connected to the linkage shaft 130 so as to drive the follower 121 to be synchronously linked while the operation lever 111 is moved.

In some embodiments, to facilitate the connection and the coupling between the linkage shaft 130 and the driven member 121, the end of the second support plate 1213, which is far from the end connected to the second mounting frame 122, has an extension part 12131, and the extension part 12131 is provided with a mounting part 12132, and the linkage shaft 130 is connected to the mounting part 12132 through the second mounting frame 122, and by extending the length of the second support plate 1213 and providing a mounting structure at the extended part, the installation of the linkage shaft 130 is facilitated, and at the same time, interference with the driven member 121 and the second mounting frame 122 is avoided.

In some embodiments, the second mounting frame 122 includes a housing 1221 having a fourth through hole 12211 and a connection board 1222, where the housing 1221 in this embodiment is a semi-enclosed structure formed by sequentially connecting and enclosing a first support wall 12212, a second support wall 12213 and a third support wall 12214, the first support wall 12212 and the third support wall 12214 are disposed in parallel, the first support wall 12212 and the third support wall 12214 are disposed perpendicular to the second support wall 12213, so that the housing 1221 is disposed around the switch 200, and the second support wall 12213 has the fourth through hole 12211, so that a toggle key of the switch 200 passes through and is connected to the third through hole 1211 of the follower 121; legs are also provided on the first and third walls 12212, 12214 in this embodiment for connection to an electrical cabinet.

Further, a connection plate 1222 is provided below the housing 1221, and the connection plate 1222 is connected to the housing 1221, the connection plate 1222 being composed of a first connection plate 12221, a second connection plate 12222, and a third connection plate 12223, the first connection plate 12221 being provided in a direction parallel to the third support wall 12214 and being connected to the third support wall 12214, the second connection plate 12222 being provided in a direction extending away from the first support wall 12212, the second connection plate 12222 being provided in a direction extending away from the second connection plate 12222, the third connection plate 12223 being provided in a direction extending along an extension 12131 of the second support plate 1213, so that when the driven member 121 is rotatably connected to the housing 1221, the coupling shaft 130 is connected to the driven member 121 through the third connection plate 12223, supporting the coupling shaft 130.

In some embodiments, the end of the lever 111 remote from the linkage shaft 130 has a lever 1111 for a worker to grasp.

In summary, the embodiment of the present utility model provides a linkage safety lock 100, where an operation rod 111 is connected to a driven member 121 through a linkage shaft 130, so as to realize synchronous linkage between the operation rod 111 and the driven member 121, when the operation rod 111 is in a first position, the driven member 121 is in a third position, and at this time, the switch 200 is in a closed gear, that is, the electric cabinet is not opened, and a worker can lock the operation rod 111 in the first position by using a locking structure 112, so that the operation rod 111 cannot move, so as to limit movement of the driven member 121 and lock the switch, thereby preventing the electric cabinet at the far end from being electrified by human operation, and meeting the requirement of safe power failure; when the electric cabinet needs to be opened, the locking structure 112 releases the locking of the operating rod 111, the operating rod 111 moves to the second position, the driven member 121 is driven to move to the fourth position by the linkage shaft 130, and at this time, the switch 200 is in the opening gear, that is, the electric cabinet is opened, so that the equipment can perform operation.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims

1. A linkage safety lock installed between equipment and an electric cabinet, the electric cabinet including being used for controlling the electric cabinet opens and closes the switch, its characterized in that, linkage safety lock includes:

2. The linked safety lock of claim 1 wherein the operating assembly further comprises a first mounting bracket mounted to the device, the operating lever being hinged to the first mounting bracket, the locking structure being mounted to the first mounting bracket.

3. The ganged safety lock of claim 2, wherein the first mounting bracket includes a first bracket and a second bracket, the first bracket being mounted on the device, the second bracket being connected to the first bracket and being disposed perpendicular to the first bracket, the operating lever being hinged to the first bracket, the linkage shaft passing through the second bracket and being hinged to the operating lever.

4. A linked safety lock according to any one of claims 2 or 3 wherein the lever has a locking aperture;

5. The linkage safety lock according to claim 4, wherein the mounting seat is provided with a connecting piece, and the elastic piece is sleeved on the connecting piece;

6. The linkage safety lock according to claim 1, wherein the driven component further comprises a second mounting frame, the driven component is provided with a third through hole, the second mounting frame is mounted on the electric cabinet, the second mounting frame is arranged on the periphery side of the switch in a surrounding mode, the toggle key of the switch is exposed out of the second mounting frame and is positioned in the third through hole, and the driven component is connected with the second mounting frame in a rotating mode;

7. The linkage safety lock according to claim 6, wherein the second mounting bracket includes a housing having a fourth through hole and a connection plate, the housing is disposed around the switch, and the toggle key is connected to the third through hole through the fourth through hole;

8. The linkage safety lock according to any one of claims 6 or 7, wherein the follower comprises a first support plate, a second support plate and a third support plate, the first support plate is provided with the third through hole, the second support plate and the third support plate are arranged at two ends of the first support plate in opposition to each other and are arranged vertically to the first support plate, the second support plate, the third support plate and the second mounting frame are connected in a rotating manner, and the second support plate is connected with the linkage shaft.

9. The linkage safety lock according to claim 8, wherein an end of the second support plate, which is far away from the end connected with the second mounting frame, has an extension portion, the extension portion is provided with a mounting portion, and the linkage shaft passes through the second mounting frame to be connected with the mounting portion.

10. The ganged safety lock of claim 1, wherein the lever has a lever at an end remote from the linkage shaft.