Padlock mechanism of switch cabinet middle door

Abstract

The utility model relates to a padlock mechanism of a switch cabinet middle door, which comprises a middle door and a padlock assembly arranged on the middle door. The padlock assembly comprises a supporting plate arranged on the inner wall of the middle door, a lock body arranged on the middle door, a baffle arranged on a lock cylinder of the lock body in a linkage mode and matched with a handcart operation hole of the middle door, a driving plate arranged on the lock cylinder of the lock body in a linkage mode, and a microswitch used for controlling a power source of a signal lamp of the switch cabinet to be connected or disconnected. The microswitch is arranged on the supporting plate and matched with the driving plate, the lock body is provided with a rotary knob which is exposed outside the middle door and used for driving the lock cylinder, the rotary knob is provided with a padlock hole, the baffle moves along with the lock cylinder and shields a handcart operation hole, the driving plate moves along with the lock cylinder and triggers the microswitch, and the padlock hole is formed in the lock body. And the switch-on of the microswitch is realized. The locking device has the advantages of being simple in structure, stable and reliable in performance, convenient and fast to operate, reliable in locking and high in protection capacity.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a padlock mechanism for a door in a switch cabinet. Background Art

[0002] At present, the main function of the switch cabinet is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system. The components in the switch cabinet mainly include circuit breakers, disconnectors, load switches, operating mechanisms, mutual inductors and various protective devices. The switch cabinet is mainly suitable for various occasions such as power plants, substations, petrochemicals, metallurgical steel rolling, light industry and textiles, factories and mines, residential areas, high-rise buildings, etc. The trolley operation hole of the traditional high-voltage trolley switch cabinet does not have a locking device. When the high-voltage switch cabinet is in operation, the qualifications of the personnel are not emphasized. In order to prevent the trolley from being accidentally operated by unqualified personnel, affecting the power on and off conditions or affecting the life safety of personnel during maintenance, it is particularly important to lock the trolley at ordinary times. As a result, a padlock mechanism for locking the trolley operation hole has appeared on the market. The existing padlock mechanism has a relatively complex structural design, cumbersome assembly, inconvenient operation, unreliable locking, and general protection capability. Summary of the invention

[0003] The utility model aims to overcome the defects of the prior art and provide a padlock mechanism for a switch cabinet door which has a simple structure, stable and reliable performance, convenient operation, reliable locking and strong protection capability.

[0004] To achieve the above-mentioned purpose, the utility model adopts a padlock mechanism for the middle door of a switch cabinet, including a middle door and a padlock assembly arranged on the middle door, the padlock assembly including a support plate arranged on the inner wall of the middle door, a lock body arranged on the middle door, a baffle plate linked to the lock core of the lock body and matched with the trolley operating hole of the middle door, a drive plate linked to the lock core of the lock body, and a micro switch for controlling the power on or off of a signal light of the switch cabinet, the micro switch is arranged on the support plate and matched with the drive plate, the lock body is provided with a knob exposed outside the middle door and used to drive the lock core, the knob is provided with a padlock hole, the baffle plate moves with the lock core and blocks the trolley operating hole, the drive plate moves with the lock core and triggers the micro switch to realize the connection of the micro switch.

[0005] The beneficial effect of the above structure is that a padlock assembly is arranged on the middle door of the switch cabinet, and the baffle of the padlock assembly can block the trolley operation hole of the middle door, thereby preventing others from operating the trolley at will, and the locking reliability is higher and the protection capability is stronger. During operation, the knob of the lock body is turned to the locking position, and the padlock is hung in the padlock hole of the knob. The padlock locks the knob in the locking position, and the knob drives the lock core to rotate, and the lock core drives the baffle and the drive plate to move. The baffle moves with the lock core and blocks the trolley operation hole of the middle door, thereby realizing the locking of the trolley operation hole, and others cannot operate the trolley. The drive plate moves with the lock core and triggers the micro switch, and the micro switch can connect the power supply of the signal light of the switch cabinet, so that the operator can know the working status of the padlock mechanism by observing the signal light of the switch cabinet. The locking reliability is higher. Therefore, the padlock mechanism of the middle door of the switch cabinet has the advantages of simple structure, stable and reliable performance, convenient operation, reliable locking, and strong protection capability.

[0006] In particular, one end of the baffle has a snap-in hole, one end of the lock core is provided with a driving part matched with the snap-in hole, the driving part is snapped into the snap-in hole, and forms a linkage match between the baffle and the driving part, and the other end of the baffle has a shielding part matched with the trolley operation hole. The baffle and the lock core are connected by snap-in matching, so as to facilitate the assembly of the baffle and the lock core, and the assembly is more convenient, and it can ensure that the lock core can reliably drive the baffle to move, which is conducive to improving the working reliability of the padlock mechanism.

[0007] In particular, one end of the driving plate has a square hole matched with the driving part, the driving part is engaged in the square hole, and the driving plate and the driving part are linked, and the other end of the driving plate has a toggle part matched with the micro switch, and the toggle part moves with the driving plate and contacts the contact piece of the micro switch. The driving plate and the driving part of the lock core are connected in a snap-fit ​​manner, so as to facilitate the assembly of the lock core and the driving plate, and the assembly is more convenient, and it can ensure that the lock core can reliably drive the driving plate to move, which is conducive to improving the working reliability of the padlock mechanism.

[0008] In particular, an insulating pad is provided between the micro switch and the support plate, a screw is provided on the micro switch, and the screw passes through the micro switch and the insulating pad and is connected to the support plate. The insulating pad is provided between the micro switch and the support plate, and the protection performance is better, thereby ensuring the working reliability of the padlock mechanism.

[0009] In particular, a limiting groove matched with the support plate is provided on one side of the baffle plate, and a limiting convex block matched with the limiting groove is provided on the support plate, and the limiting convex block is engaged in the limiting groove, and constitutes the limiting cooperation between the support plate and the baffle plate. The limiting boss of the support plate is engaged in the limiting groove of the baffle plate, thereby limiting the reverse rotation of the baffle plate, which is conducive to improving the working reliability of the padlock mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a stereogram of an embodiment of the utility model.

[0011] Figure 2 This is an internal structure diagram of an embodiment of the utility model.

[0012] Figure 3 This is an exploded view of an embodiment of the utility model. DETAILED DESCRIPTION

[0013] like Figures 1 to 3 As shown, the embodiment of the utility model is a padlock mechanism for the middle door of a switch cabinet, comprising a middle door 10, a padlock assembly 20 arranged on the middle door 10, wherein the padlock assembly 20 comprises a support plate 21 arranged on the inner wall of the middle door 10, a lock body 22 arranged on the middle door 10, a baffle 23 arranged on a lock core 221 of the lock body 22 in linkage and matched with a trolley operating hole 11 of the middle door 10, a drive plate 24 arranged on the lock core 221 of the lock body 22 in linkage, and a signal lamp for controlling the switch cabinet. The micro switch 25 for connecting or disconnecting the power supply is arranged on the support plate 21 and cooperates with the driving plate 24. The lock body 22 is provided with a knob 222 exposed outside the middle door 10 and used to drive the lock cylinder 221. The knob 222 is provided with a padlock hole 223. The baffle 23 moves with the lock cylinder 221 and blocks the trolley operating hole 11. The driving plate 24 moves with the lock cylinder 221 and triggers the micro switch 25 to realize the connection of the micro switch 25.

[0014] like Figure 2 , 3As shown, one end of the baffle 23 has a snap-in hole 231, and one end of the lock core 221 is provided with a driving part 2211 matched with the snap-in hole 231. The driving part 2211 is snapped into the snap-in hole 231, and forms a linkage match between the baffle 23 and the driving part 2211. The other end of the baffle 23 has a shielding part 232 matched with the trolley operating hole 11. The baffle and the lock core are connected by snap-in matching, so as to facilitate the assembly of the baffle and the lock core, and the assembly is more convenient, and it can ensure that the lock core can reliably drive the baffle to move, which is conducive to improving the working reliability of the padlock mechanism. One end of the driving plate 24 has a square hole 241 matched with the driving part 2211, and the driving part 2211 is engaged in the square hole 241, and constitutes the linkage of the driving plate 24 and the driving part 2211. The other end of the driving plate 24 has a toggle part 242 matched with the micro switch 25, and the toggle part 242 moves with the driving plate 24 and contacts the contact piece of the micro switch 25. The driving plate and the driving part of the lock core are connected in a snap-fit ​​manner, so as to facilitate the assembly of the lock core and the driving plate, and the assembly is more convenient, and it can be ensured that the lock core can reliably drive the driving plate to move, which is conducive to improving the working reliability of the padlock mechanism. An insulating pad 26 is arranged between the micro switch 25 and the support plate 21, and a screw is arranged on the micro switch 25, and the screw passes through the micro switch 25, the insulating pad 26 and is connected to the support plate 21. An insulating pad is arranged between the micro switch and the support plate, and the protection performance is better, so that the working reliability of the padlock mechanism can be ensured. A limiting groove 233 matching with the support plate 21 is provided on one side of the baffle plate 23, and a limiting protrusion 211 matching with the limiting groove 233 is provided on the support plate 21. The limiting protrusion 211 is engaged in the limiting groove 233, and constitutes the limiting cooperation between the support plate 21 and the baffle plate 23. The limiting boss of the support plate is engaged in the limiting groove of the baffle plate, so that the baffle plate can be limited from rotating in the opposite direction, which is conducive to improving the working reliability of the padlock mechanism.

[0015] A padlock assembly is provided on the middle door of the switch cabinet, and the baffle of the padlock assembly can block the trolley operation hole of the middle door, thereby preventing others from operating the trolley at will, and the locking reliability is higher and the protection capability is stronger. During operation, the knob of the lock body is turned to the locking position, and the padlock is hung in the padlock hole of the knob. The padlock locks the knob in the locking position, and the knob drives the lock core to rotate, and the lock core drives the baffle and the drive plate to move. The baffle moves with the lock core and blocks the trolley operation hole of the middle door, thereby realizing the locking of the trolley operation hole, and others cannot operate the trolley. The drive plate moves with the lock core and triggers the micro switch, and the micro switch can connect the power supply of the signal light of the switch cabinet, so that the operator can know the working status of the padlock mechanism by observing the signal light of the switch cabinet. The locking reliability is higher. Therefore, the padlock mechanism of the middle door of the switch cabinet has the advantages of simple structure, stable and reliable performance, convenient operation, reliable locking, and strong protection capability.

Claims

1. A padlock mechanism for a middle door of a switch cabinet, comprising a middle door and a padlock assembly arranged on the middle door. Features: The padlock assembly includes a support plate arranged on the inner wall of the middle door, a lock body arranged on the middle door, a baffle plate linked to the lock core of the lock body and matched with the trolley operating hole of the middle door, a drive plate linked to the lock core of the lock body, and a micro switch for controlling the power on or off of the signal light of the switch cabinet. The micro switch is arranged on the support plate and matched with the drive plate. The lock body is provided with a knob exposed outside the middle door and used to drive the lock core. The knob is provided with a padlock hole. The baffle plate moves with the lock core and blocks the trolley operating hole. The drive plate moves with the lock core and triggers the micro switch to realize the connection of the micro switch.

2. The padlock mechanism for the switch cabinet door according to claim 1, Features: One end of the baffle has a snap-in hole, and one end of the lock core is provided with a driving part that matches the snap-in hole. The driving part is snapped into the snap-in hole and forms a linkage cooperation between the baffle and the driving part. The other end of the baffle has a shielding part that matches the trolley operating hole.

3. The padlock mechanism for the switch cabinet door according to claim 2, Features: One end of the driving plate has a square hole that matches the driving part. The driving part is engaged in the square hole and forms a linkage between the driving plate and the driving part. The other end of the driving plate has a toggle part that matches the micro switch. The toggle part moves with the driving plate and contacts the contact piece of the micro switch.

4. The padlock mechanism for the switch cabinet door according to claim 1 or 2, Features: An insulating pad is arranged between the micro switch and the support plate, and a screw is arranged on the micro switch. The screw passes through the micro switch and the insulating pad and is connected to the support plate.

5. The padlock mechanism for the switch cabinet door according to claim 1 or 2, Features: A limiting groove matched with the support plate is arranged on one side of the baffle plate, and a limiting convex block matched with the limiting groove is arranged on the support plate. The limiting convex block is engaged in the limiting groove and constitutes the limiting cooperation between the support plate and the baffle plate.

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