CN110350407B

CN110350407B - Power distribution cabinet interlocking device

Info

Publication number: CN110350407B
Application number: CN201910475887.2A
Authority: CN
Inventors: 王锡痒; 高利忠
Original assignee: NINGBO LIAOYUAN ELECTRICAL APPLIANCE CO Ltd
Current assignee: NINGBO LIAOYUAN ELECTRICAL APPLIANCE CO Ltd
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2020-11-13
Anticipated expiration: 2039-06-03
Also published as: CN110350407A

Abstract

The invention discloses a power distribution cabinet interlocking device which comprises a cabinet body, wherein a shell comprises a switch brake mechanism, a linkage mechanism and a driving device, the switch brake mechanism comprises a control block and a first helical gear, the control block is fixedly connected with a sliding rod, the tail end of the sliding rod is provided with a first permanent magnet, the first helical gear is in meshing connection with a second helical gear, and the second helical gear is in rotational control with a grounding switch shaft; the driving device comprises a motor and a door shaft, the motor is driven by a rotating shaft, a second belt pulley is arranged on the rotating shaft, a first belt pulley is arranged on the door shaft, the first belt pulley is connected with the second belt pulley through a belt, and a first helical gear is further arranged on the rotating shaft.

Description

Power distribution cabinet interlocking device

Technical Field

The invention relates to the field of electrical equipment, in particular to a power distribution cabinet interlocking device.

Background

Mechanical electrical distribution cabinets are boxes in which electrical appliances and their circuits are placed, used to distribute electrical energy. The power distribution cabinet comprises a high-voltage switch cabinet for switching on and off, controlling or protecting in power transmission, power distribution, electric energy conversion and consumption of a power system, and an arc extinction and resonance elimination and overvoltage suppression cabinet for overvoltage protection. The high-voltage switch cabinet/arc extinction resonance elimination and overvoltage suppression cabinet produced in the current market comprises a lower door, a middle door and an instrument door from bottom to top, wherein an operation chamber is arranged in a rear cabinet after the middle door is opened, an operation handle of an isolating switch is arranged in the operation chamber, the operation handle is driven up and down, an operation driving operation rod rotates, and the operation rod drives the isolating switch hinged on the operation rod to be switched on and off. However, after the middle door is opened, the left side of the middle door is a primary chamber which is electrified, so that an operator can accidentally execute an operating handle in the operating chamber to have a conductive danger. In order to ensure safety, the electromagnetic switch of the primary chamber is closed first, and then the operation handle is operated. However, in actual operation, an operator still has the possibility of forgetting to close the electromagnetic switch of the chamber once, so that the potential safety hazard exists in the operation of opening the middle door.

Disclosure of Invention

The invention mainly aims to provide a power distribution cabinet interlocking device, which eliminates the potential safety hazard of disconnecting switch on and disconnecting switch off, and an operator does not need to judge whether a disconnecting switch is in an on-off state, so that the safety performance is improved, and the working efficiency is greatly improved.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a power distribution cabinet interlocking device comprises a cabinet body, wherein a shell comprises a switch brake mechanism, a linkage mechanism and a driving device, the switch brake mechanism comprises a control block and a first helical gear, the control block is fixedly connected with a sliding rod, the tail end of the sliding rod is provided with a first permanent magnet, the first helical gear is connected with a second helical gear in a meshing manner, and the second helical gear is used for controlling a grounding switch shaft; the driving device comprises a motor and a door shaft, the motor drives a rotating shaft, a second belt pulley is arranged on the rotating shaft, a first belt pulley is arranged on the door shaft, the first belt pulley is connected with the second belt pulley through a belt, and a fourth bevel gear is further arranged on the rotating shaft; when the grounding switch shaft enables the grounding switch to be in a closing state, the linkage mechanism enables the fourth bevel gear and the second bevel gear to be in linkage.

As an improvement, the link gear includes the support column, sliding connection has the slider on the support column, the joint has the third bevel gear on the slider, the slider is close to first permanent magnet one end is equipped with the second permanent magnet, and the other end is equipped with the spring.

As an improvement, the first bevel gear is in threaded connection with the sliding rod, and the sliding rod can drive the first bevel gear to rotate through sliding.

As a refinement, the first permanent magnet is opposite in magnetic polarity to the second permanent magnet.

As an improvement, the cabinet body is provided with a button, and the button is pressed to drive the motor to rotate forward and backward.

As an improvement, the cabinet body is provided with a limiting block for limiting the position of the control block.

As a refinement, the outer diameter of the first helical gear is smaller than the outer diameter of the third helical gear.

Compared with the prior art, the invention has the advantages that:

1. when the earthing switch shaft enables the earthing switch to be in a closing state, the first bevel gear and the third bevel gear can be linked through the linkage mechanism, the earthing switch shaft can be rotated when the door shaft opens the door, the closing state of the earthing switch is changed into an opening state, safety of workers is protected, operation is simple and convenient, and working efficiency is improved.

2. When the grounding switch is in the opening state, the first bevel gear and the third bevel gear are linked, so that the door shaft rotates to drive the grounding switch shaft to rotate to open the grounding switch.

3. The second bevel gear is in threaded connection with the sliding rod, the sliding rod can slide left and right to enable the second bevel gear to rotate forward and backward, a user changes the rotating action into a simple pushing action, and the operation is simplified.

4. The first permanent magnet and the second permanent magnet have opposite magnetic poles, and when the first permanent magnet and the second permanent magnet are located in a certain distance, the second permanent magnet can drive the sliding block to move towards the first permanent magnet, so that the third helical gear is meshed with the fourth helical gear respectively.

5. In the prior art, the power distribution cabinet is switched on and off manually, and an electric button is designed to replace a manual switch, so that convenience is improved.

6. The cabinet body is provided with a limiting block for limiting the control block, so that a user can clearly know whether the operation is finished.

7. The outer diameter of the first bevel gear is smaller than that of the third bevel gear, so that the first bevel gear and the second bevel gear are meshed with each other and cannot be meshed with the fourth bevel gear.

Drawings

FIG. 1 is a cross-sectional view of the overall construction of the present invention;

FIG. 2 is a sectional view showing the overall construction of the push control block of the present invention;

FIG. 3 is a cross-sectional view of the overall structure of FIG. 2 after pushing the control block;

FIG. 4 is a sectional view showing the overall structure of the present invention when the door body is rotated after the button is pressed;

fig. 5 is a sectional view of the entire structure after the door body is pushed open completely.

The names of the parts corresponding to the respective reference numerals are: the cabinet body 1, the door body 11, the door shaft 2, the first belt pulley 21, the second belt pulley 22, the motor 3, the rotating shaft 31, the fourth bevel gear 32, the control block 4, the sliding rod 41, the first bevel gear 42, the first permanent magnet 43, the grounding switch shaft 51, the second bevel gear 52, the supporting column 61, the third bevel gear 62, the sliding block 621, the second permanent magnet 63, the spring 64 and the button 7.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

The switch comprises a cabinet body 1, wherein the shell 1 comprises a switch brake mechanism, a linkage mechanism and a driving device, the switch brake mechanism comprises a control block 4 and a first bevel gear 42, the control block 4 is fixedly connected with a sliding rod 41, the tail end of the sliding rod 41 is provided with a first permanent magnet 43, the first bevel gear 42 is in meshing connection with a second bevel gear 52, and the second bevel gear 52 is rotationally controlled by a grounding switch shaft 51; the driving device comprises a motor 3 and a door shaft 2, the motor 3 drives a rotating shaft 31, a second belt pulley 22 is arranged on the rotating shaft 31, a first belt pulley 21 is arranged on the door shaft 2, the first belt pulley 21 is connected with the second belt pulley 22 through a belt, and a fourth bevel gear 32 is further arranged on the rotating shaft 31; when the grounding switch shaft 51 closes the grounding switch, the interlocking mechanism interlocks the fourth bevel gear 32 and the second bevel gear 52.

Specifically, the link gear includes support column 61, sliding connection has slider 621 on the support column 61, the joint has third bevel gear 62 on the slider 621, slider 621 is close to first permanent magnet 43 one end is equipped with second permanent magnet 63, and the other end is equipped with spring 64.

Specifically, the first bevel gear 42 is in threaded connection with the sliding rod 43, and the sliding rod 41 can drive the second bevel gear 42 to rotate through sliding.

Specifically, the first permanent magnet 43 and the second permanent magnet 63 have opposite poles.

Specifically, the cabinet body 1 is provided with a button 7, and the button 7 can be pressed to drive the motor 3 to rotate forward and backward.

Specifically, the cabinet body 1 is provided with a limiting block for limiting the position of the control block 4.

Specifically, the outer diameter of the first helical gear 42 is smaller than the outer diameter of the third helical gear 62.

In the initial state, the door body 11 is in a closed state; when the grounding switch is in a brake-off state, that is, the control block 4 is in a position shown in fig. 1, at this time, if the button 7 is pressed, the motor 3 drives the second belt pulley 22 to rotate, and the second belt pulley 22 drives the first belt pulley 21 to rotate, so that the door shaft 2 rotates to drive the door body 11 to rotate to open the door.

When the grounding switch needs to be in a closing state, the control block 4 is pushed to the bottom in the direction of the cabinet body 1, the control block 4 drives the sliding rod 41 to move inwards, the sliding rod 41 is in threaded connection with the first bevel gear 42, so the first bevel gear 42 rotates forwards, and the first bevel gear 42 is meshed with the second bevel gear 52, so the second bevel gear 52 drives the grounding switch shaft 51 to close the grounding switch.

When the ground switch is in a closed state, the first permanent magnet 43 is located at the position shown in fig. 3, at this time, because the magnetic poles of the first permanent magnet 43 and the second permanent magnet 63 are opposite, and the acting force of the magnetic force is greater than the spring force of the spring 64, the second permanent magnet 63 drives the slider 621 and the third helical gear 62 to move rightward to the position shown in fig. 3 under the action of the magnetic force, and at this time, the third helical gear 62 is meshed with the second helical gear 52 and the fourth helical gear 32, respectively.

At the moment, if a worker needs to open the power distribution cabinet, the worker only needs to press the button 7, so that the motor 3 drives the second belt pulley 22 to rotate, the second belt pulley 22 drives the first belt pulley 21 to rotate, and the door shaft 2 rotates to drive the door body 11 to rotate to open the door; meanwhile, the second pulley 22 drives the rotating shaft 31 and the fourth helical gear 32 to rotate, and since the fourth helical gear 32 is meshed with the third helical gear 62, and the third helical gear 62 is meshed with the second helical gear 52, the second helical gear 52 rotates reversely to rotate the grounding switch shaft 51, and since the second helical gear 52 is meshed with the first helical gear 42, the first helical gear 42 rotates reversely to move the sliding rod 41 rightwards, when the sliding rod 41 slides to the position shown in fig. 4, the grounding switch shaft 51 enables the grounding switch to be in the opening state, and the magnetic force of the first permanent magnet 43 and the second permanent magnet 63 is smaller than the spring force of the spring 64, so that under the action of the spring force 64, the sliding block 621 and the third helical gear 62 slide to the position shown in fig. 5, at this time, the door body 11 is completely opened, and the grounding switch is in the opening state, and there is no safety hazard for the worker.

When the door needs to be closed, the button 7 is pressed again, and the motor 3 overturns at the moment, so that the first belt pulley 21 drives the door shaft 2 to overturn, and the door body 11 is closed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a switch board interlock, includes the cabinet body (1), the cabinet body (1) is including switch floodgate mechanism, link gear and drive arrangement, its characterized in that: the switch brake mechanism comprises a control block (4) and a first bevel gear (42), the control block (4) is fixedly connected with a sliding rod (41), a first permanent magnet (43) is arranged at the tail end of the sliding rod (41), the first bevel gear (42) is connected with a second bevel gear (52) in a meshed mode, and a grounding switch shaft (51) is controlled by the second bevel gear (52) in a rotating mode; the driving device comprises a motor (3) and a door shaft (2), the motor (3) drives a rotating shaft (31), a second belt pulley (22) is arranged on the rotating shaft (31), a first belt pulley (21) is arranged on the door shaft (2), the first belt pulley (21) is connected with the second belt pulley (22) through a belt, and a fourth bevel gear (32) is further arranged on the rotating shaft (31); when the grounding switch shaft (51) enables the grounding switch to be in a closing state, the linkage mechanism enables the fourth bevel gear (32) and the second bevel gear (52) to be linked.

2. A switch board interlock according to claim 1, characterized in that: the link gear includes support column (61), sliding connection has slider (621) on support column (61), the joint has third helical gear (62) on slider (621), slider (621) are close to first permanent magnet (43) one end is equipped with second permanent magnet (63), and the other end is equipped with spring (64).

3. A switch board interlock according to claim 1, characterized in that: the first bevel gear (42) is in threaded connection with the sliding rod (43), and the sliding rod (41) can drive the first bevel gear (42) to rotate through sliding.

4. A switch board interlock according to claim 2, characterized in that: the first permanent magnet (43) and the second permanent magnet (63) have opposite magnetic poles.

5. A switch board interlock according to claim 1, characterized in that: the cabinet body (1) is provided with a button (7), and the button (7) can drive the motor (3) to rotate positively and negatively.

6. A switch board interlock according to claim 1, characterized in that: the cabinet body (1) is provided with a limiting block for limiting the position of the control block (4).

7. A switch board interlock according to claim 2, characterized in that: the outer diameter of the first helical gear (42) is smaller than the outer diameter of the third helical gear (62).