Transformer grounding cabinet switch lock

Abstract

The utility model discloses a switch lock for a grounding cabinet of a transformer, relates to the technical field of cabinet door locks, and aims to solve the problems that an existing switch lock cannot be unlocked after a key is lost, and power is forgotten to be cut off when the lock is directly unlocked. Comprising two sets of cabinet doors and switch locks, the cabinet doors are hollow shells, and the two sets of cabinet doors are limited through the switch locks; the switch lock comprises a rack and a rotating sleeve, one set of cabinet doors is slidably connected with the rack through a sliding frame, and the rack penetrates out of the cabinet doors to limit the other set of cabinet doors. A rotating sleeve is further rotationally connected to the cabinet door, teeth meshed with the rack are arranged on the rotating sleeve, and a limiting assembly for the rotating sleeve is further arranged in the cabinet door; an insulating plate is arranged on a cabinet door and is matched with a proximity switch between a sliding box and a telescopic rod, when a switch lock needs to be opened, the proximity switch needs to be closed firstly, meanwhile, a power supply of a transformer in the grounding cabinet is cut off, a protection effect is achieved, and the situation that workers forget to cut off power and get an electric shock is avoided; the cabinet door is further provided with a protection assembly for the switch lock.

Description

Technical Field

[0001] The utility model relates to the technical field of cabinet door locks, in particular to a transformer grounding cabinet switch lock. Background Art

[0002] Transformer grounding cabinets are widely used and are usually installed indoors or outdoors to protect transformers. Existing grounding cabinets are equipped with switch locks, and the switch locks require a specific key to open them. If the key is lost, the lock cannot be opened. At the same time, there are multiple circuit connectors on the transformer, connected to multiple wires. When repairing, the power must be turned off. After the key is turned on, there is a problem of forgetting to turn off the power, which poses certain safety hazards.

[0003] Therefore, the present application provides a transformer grounding cabinet switch lock to meet the needs. Utility Model Content

[0004] The purpose of the present application is to provide a transformer grounding cabinet switch lock, which aims to solve the problem that the existing switch lock cannot be opened after the key is lost, and there is a problem that the lock is opened directly without turning off the power.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a transformer grounding cabinet switch lock, comprising a cabinet door and a switch lock, wherein the cabinet door is a hollow shell and is provided with two groups, and the two groups of cabinet doors are limited by the switch lock;

[0006] The switch lock includes a rack and a rotating sleeve. One set of cabinet doors is slidably connected to the rack via a sliding frame. The rack passes through the cabinet door to limit the position of the other set of cabinet doors.

[0007] The cabinet door is also rotatably connected to the rotating sleeve, and the rotating sleeve is provided with teeth that mesh with the rack. The cabinet door is also provided with a limit component for the rotating sleeve; an insulating plate is provided on the cabinet door, and cooperates with the proximity switch between the sliding box and the telescopic rod. When the switch lock needs to be opened, the proximity switch must be turned off first, and the power supply of the transformer in the grounding cabinet must be cut off at the same time, which plays a protective role and prevents the staff from forgetting to turn off the power and getting an electric shock; the cabinet door is also provided with a protective component for the switch lock.

[0008] Preferably, the rotating sleeve includes a front part and a rear part, the rear part is rotatably connected to the cabinet door, the front part is provided with teeth engaged with the rack, and the rear part is also provided with a through hole corresponding to the position of the limiting component, and the limiting component cooperates with the through hole to limit the rotating sleeve. The teeth are provided on the rotating sleeve and cooperate with the rack to limit the two groups of cabinet doors and realize the closing of the cabinet doors.

[0009] Preferably, the limiting assembly includes a mounting block and a locking pin, the mounting block is installed on the cabinet door, a sliding groove is provided on the mounting block, the locking pin is slidably connected in the sliding groove, the locking pin corresponds to the position of the through hole, and the rotating sleeve can only rotate in one direction, a first spring is also provided between the locking pin and the mounting block, and the rotating sleeve is also provided with an unlocking assembly for pushing the locking pin to slide in the sliding groove.

[0010] Preferably, the unlocking component includes a sliding shaft and a protrusion. The sliding shaft is slidably connected in the rotating sleeve, and a second spring is provided between the sliding shaft and the rotating sleeve. The sliding shaft is also provided with the protrusion adapted to the through hole. The protrusion is slidably connected to the locking pin. A sliding shaft is set in the rotating sleeve, and a limit assembly is cooperated to realize the limitation and release of the rotating sleeve, thereby optimizing key unlocking while keeping the switch lock safe and concealed.

[0011] Preferably, the protective component includes an insulating plate and a sliding box, the sliding box is installed on the cabinet door, and the sliding box is a shell with a transparent end. A telescopic rod is slidably connected to the sliding box, and the telescopic end of the telescopic rod is connected to the insulating plate. An opening that is compatible with the insulating plate is opened on the cabinet door, and a proximity switch is also provided between the telescopic rod and the sliding box.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] In the utility model, an insulating plate is provided on the cabinet door, and a proximity switch is provided between the sliding box and the telescopic rod. When the switch lock needs to be opened, the proximity switch must be turned off first, and the power supply of the transformer in the grounding cabinet is cut off at the same time, which plays a protective role and prevents the staff from forgetting to turn off the power and getting an electric shock.

[0014] In the present invention, teeth are provided on the rotating sleeve and cooperated with the rack to limit the two groups of cabinet doors and realize the closing of the cabinet doors; a sliding shaft is provided in the rotating sleeve and cooperated with the limiting component to realize the limiting and releasing of the rotating sleeve, thereby optimizing key unlocking while keeping the switch lock safe and concealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the local structure of the utility model;

[0020] Figure 5 It is a partial exploded view of the utility model.

[0021] In the figure: 1. Insulation board; 2. Cabinet door; 3. Sliding box; 4. Rack; 5. Rotating sleeve; 6. Sliding shaft; 7. Telescopic rod; 8. Mounting block; 9. First spring; 10. Locking pin; 11. Protrusion; 12. Through hole; 13. Second spring; 14. Sliding frame; 15. Teeth. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1: Reference Figure 1-5 The transformer grounding cabinet switch lock shown includes a cabinet door 2 and a switch lock. The cabinet door 2 is a hollow shell, and there are two groups of cabinet doors 2. The two groups of cabinet doors 2 are limited by the switch lock. The cabinet door 2 is a hollow shell.

[0024] The switch lock includes a rack 4 and a rotating sleeve 5. The rack 4 is slidably connected to one set of cabinet doors 2 via a sliding frame 14. The rack 4 passes through the cabinet doors 2 to limit the position of the other set of cabinet doors 2. The other set of cabinet doors 2 is provided with a hole adapted to fit the rack 4.

[0025] The cabinet door 2 is also rotatably connected to the rotating sleeve 5, and the rotating sleeve 5 is provided with teeth 15 that mesh with the rack 4. The rotating sleeve 5 includes a front part and a rear part, and the rear part is rotatably connected to the cabinet door 2. The front part is provided with teeth 15 that mesh with the rack 4, and the rear part is also provided with a through hole 12 corresponding to the position of the limiting component. The limiting component cooperates with the through hole 12 to limit the rotating sleeve 5.

[0026] Limiting components: such as Figure 3As shown, for limiting the rotating sleeve 5, a limiting component for the rotating sleeve 5 is also provided in the cabinet door 2; the limiting component includes a mounting block 8 and a locking pin 10, the mounting block 8 is installed on the cabinet door 2, a sliding groove is provided on the mounting block 8, the locking pin 10 is slidably connected in the sliding groove, and an inclined surface is provided on the opposite end of the locking pin 10 and the rotating sleeve 5, the locking pin 10 corresponds to the position of the through hole 12, and under the action of the inclined surface, the rotating sleeve 5 can only rotate in one direction, and a first spring 9 is also provided between the locking pin 10 and the mounting block 8.

[0027] The rotating sleeve 5 is also provided with an unlocking assembly for pushing the locking pin 10 to slide in the sliding groove. The unlocking assembly includes a sliding shaft 6 and a protrusion 11. The sliding shaft 6 is slidably connected to the rotating sleeve 5, and a second spring 13 is provided between the sliding shaft 6 and the rotating sleeve 5. The sliding shaft 6 is also provided with the protrusion 11 adapted to the through hole 12. The protrusion 11 is slidably connected to the locking pin 10. When the switch lock is closed, the protrusion 11 and the locking pin 10 are offset in the through hole 12. When the switch lock is opened, the protrusion 11 pushes the locking pin 10 out of the through hole 12, releasing the unlocking assembly from limiting the rotating sleeve 5.

[0028] The cabinet door 2 is also equipped with a protective assembly for the switch lock. The protective assembly includes an insulating plate 1 and a sliding box 3. The insulating plate 1 is made of rubber. The sliding box 3 is mounted on the cabinet door 2 and is a shell with one end transparent. A telescopic rod 7 is slidably connected to the sliding box 3. The telescopic end of the telescopic rod 7 is connected to the insulating plate 1. The cabinet door 2 has an opening that is compatible with the insulating plate 1. A proximity switch is also provided between the telescopic rod 7 and the sliding box 3.

[0029] The telescopic rod 7 includes an outer rod and an inner rod, the inner rod and the outer rod are slidably connected, and a third spring is provided between the inner rod and the outer rod. The outer rod is located inside the sliding box 3, and a proximity switch is provided between the outer rod and the sliding box 3. When the telescopic rod 7 and the insulating plate 1 slide, the proximity switch is disconnected, and the power to the electrical components in the grounding cabinet is cut off.

[0030] The utility model works as follows: when opening the switch lock, the insulating plate 1 is pressed downward to slide in the opening on the cabinet door 2, and the telescopic rod 7 is squeezed to retract. When the insulating plate 1 contacts the sliding box 3, the insulating plate 1 is pushed upward to drive the telescopic rod 7 to slide in the sliding box 3. The telescopic rod 7 is separated from the bottom of the sliding box 3, and the proximity switch is disconnected at the same time, and the transformer in the grounding cabinet is powered off; after the insulating plate 1 is fully opened, the staff uses a hexagonal wrench to insert it into the groove of the sliding shaft 6, and pushes the wrench to drive the sliding shaft 6 in the rotating sleeve 5. Slide, thereby driving the protrusion 11 to slide in the through hole 12, the second spring 13 is compressed, and the protrusion 11 contacts the locking pin 10 and squeezes the locking pin 10 to slide in the slide groove in the mounting block 8. The first spring 9 is compressed, and the locking pin 10 slides out of the through hole 12, releasing the limit of the rotating sleeve 5, and rotating the sliding shaft 6 to drive the rotating sleeve 5 to rotate through the protrusion 11. Through the meshing relationship between the teeth 15 and the rack 4, the rack 4 is driven to slide in the sliding frame 14, releasing the limit between the two groups of cabinet doors 2, and the switch lock is opened.

[0031] The electromechanical connection involved in the present invention is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belongs to common knowledge.

[0032] Components not described in detail herein are prior art.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A transformer grounding cabinet switch lock, comprising a cabinet door (2) and a switch lock, wherein the cabinet door (2) is a hollow shell and is provided with two groups, and the two groups of cabinet doors (2) are limited by the switch lock; Its characteristics are: The switch lock comprises a rack (4) and a rotating sleeve (5); one group of cabinet doors (2) is slidably connected to the rack (4) via a sliding frame (14); the rack (4) passes through the cabinet doors (2) to limit the position of the other group of cabinet doors (2); The cabinet door (2) is also rotatably connected to the rotating sleeve (5), and the rotating sleeve (5) is provided with teeth (15) that mesh with the rack (4). A limiting component for the rotating sleeve (5) is also provided in the cabinet door (2); The cabinet door (2) is also provided with a protection component for the switch lock.

2. The transformer grounding cabinet switch lock according to claim 1, characterized in that: The rotating sleeve (5) comprises a front portion and a rear portion, the rear portion being rotatably connected to the cabinet door (2), the front portion being provided with teeth (15) meshing with the rack (4), and the rear portion being provided with a through hole (12) corresponding to the position of the limiting assembly, the limiting assembly cooperating with the through hole (12) to limit the rotating sleeve (5).

3. The transformer grounding cabinet switch lock according to claim 2, characterized in that: The limiting assembly includes a mounting block (8) and a locking pin (10), wherein the mounting block (8) is mounted on the cabinet door (2), a sliding groove is provided on the mounting block (8), and the locking pin (10) is slidably connected in the sliding groove. The locking pin (10) corresponds to the position of the through hole (12), and enables the rotating sleeve (5) to rotate only in one direction. A first spring (9) is further provided between the locking pin (10) and the mounting block (8), and an unlocking assembly is further provided in the rotating sleeve (5) for pushing the locking pin (10) to slide in the sliding groove.

4. The transformer grounding cabinet switch lock according to claim 3, characterized in that: The unlocking assembly includes a sliding shaft (6) and a protrusion (11). The sliding shaft (6) is slidably connected to the rotating sleeve (5), and a second spring (13) is provided between the sliding shaft (6) and the rotating sleeve (5). The sliding shaft (6) is also provided with the protrusion (11) adapted to the through hole (12), and the protrusion (11) is slidably connected to the locking pin (10).

5. The transformer grounding cabinet switch lock according to claim 1, characterized in that: The protective assembly comprises an insulating plate (1) and a sliding box (3), wherein the sliding box (3) is mounted on the cabinet door (2), and the sliding box (3) is a shell with one end being transparent. A telescopic rod (7) is slidably connected in the sliding box (3), and the telescopic end of the telescopic rod (7) is connected to the insulating plate (1). An opening adapted to the insulating plate (1) is provided on the cabinet door (2), and a proximity switch is further provided between the telescopic rod (7) and the sliding box (3).

Images