Independent space self-locking low-voltage cabinet

Abstract

The utility model discloses an independent space self-locking low-voltage cabinet, which comprises a cabinet body, a cabinet door is arranged on the front surface of the cabinet body, and a controller is mounted on the outer wall of the cabinet door. The utility model relates to the technical field of low-voltage cabinets, and in the independent space self-locking low-voltage cabinet, through the cooperation of a servo motor, a first bevel gear set, a transmission rod, a second bevel gear set, a connecting rod and a connecting block, when a worker leaves the low-voltage cabinet, the cabinet door of the low-voltage cabinet is automatically closed in time, and the working efficiency is improved. The problems that when an existing independent space self-locking type low-voltage cabinet is used, a worker needs to open a cabinet door and operate components in the cabinet with tools when needing to carry out maintenance operation, when the carried tools are insufficient, the worker needs to take corresponding tools, and during the period, due to the fact that the cabinet door is open, the components in the cabinet door are inconvenient to operate are solved. And a non-professional worker may touch electrical components in the low-voltage cabinet by mistake, so that the electrical components in the low-voltage cabinet may be damaged, and economic loss is caused.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage switchgear technology, specifically to an independent space self-locking low-voltage switchgear. Background Technology

[0002] Low-voltage switchgear is suitable for power plants, petroleum, chemical, metallurgy, textile, high-rise building and other industries for power transmission, distribution and power conversion.

[0003] When using existing low-voltage switchgear, the staff opens the cabinet door, installs the electrical components onto the slide rails inside the low-voltage switchgear, connects the various components with wires, and finally closes the cabinet door.

[0004] When using existing independent space self-locking low-voltage switchgear, staff need to open the cabinet door to operate the internal components when performing maintenance. If they do not have enough tools, they need to go to get the necessary tools. During this process, because the cabinet door is open, non-professional staff may accidentally touch the electrical components inside the low-voltage switchgear, which may damage the components and cause economic losses. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides an independent space self-locking low-voltage switchgear. This solves the problem that when using existing independent space self-locking low-voltage switchgear, operators need to open the cabinet door to operate the internal components with tools. If the available tools are insufficient, operators need to retrieve them. During this process, non-professional personnel may accidentally touch the electrical components inside the low-voltage switchgear due to the open door, potentially damaging the components and causing economic losses.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an independent space self-locking low-voltage cabinet, comprising a cabinet body, a cabinet door on the front of the cabinet body, a controller installed on the outer wall of the cabinet door, a dustproof box fixedly connected to the top of the cabinet body, and a rotating assembly disposed inside the dustproof box. The rotating assembly includes: a servo motor, fixedly connected to the top of the cabinet body away from the dustproof box, with its output end passing through the outer wall of the dustproof box via a sealed bearing and extending into the interior of the dustproof box; a first bevel gear set, fixedly connected to the output end of the servo motor; and a transmission rod disposed inside the dustproof box and mounted on the servo motor via the first bevel gear set. The system includes: the output end of the servo motor; a second bevel gear set installed at the end of the transmission rod away from the first bevel gear set; four connecting rods, rotatably connected to the top and bottom sides of the cabinet via sealed bearings, with the two connecting rods at the top connected by the second bevel gear set and the transmission rod; a connecting block fixedly connected to the end of the connecting rod, with its side wall fixedly connected to the inner wall of the cabinet door; and a monitoring unit located on both sides of the inner wall of the cabinet. The servo motor, through the cooperation of the first bevel gear set, the transmission rod, and the second bevel gear set, drives the connecting rod to rotate, and the connecting rod, through the connecting block, drives the cabinet door to rotate, thus enabling the cabinet door to open and close.

[0007] Preferably, monitoring units are provided on both sides of the inner wall of the cabinet. The monitoring unit includes: an electric slide rail, fixedly connected to the inner wall of the cabinet; an electric slider, slidably connected to the outer wall of the electric slide rail; and an infrared sensor, installed on the outer wall of the electric slider. The infrared sensor slides up and down through the cooperation of the electric slider and the electric slide rail.

[0008] Preferably, the cabinet has support feet fixedly connected to the four corners of its bottom, a partition plate fixedly connected to the inner wall of the cabinet, a guide rail fixedly connected to the inner wall of the cabinet, a filter screen set between two of the guide rails, the filter screen being embedded in the back of the cabinet, and a photoelectric sensor installed on the top of the inner wall of the cabinet.

[0009] Preferably, the outer wall of the transmission rod is rotatably connected to a support plate via a bearing, the bottom of the support plate is fixedly connected to the top of the cabinet, and a handwheel is fixedly connected to one end of the transmission rod.

[0010] Preferably, both ends of the electric slide rail are fixedly connected to limit blocks, and the outer walls of the two limit blocks are fixedly connected to the inner wall of the cabinet. Beneficial effects

[0011] This utility model provides an independent space self-locking low-voltage switchgear. It has the following advantages: This independent space self-locking low-voltage switchgear, through the cooperation of a servo motor, a first bevel gear set, a transmission rod, a second bevel gear set, a connecting rod, and a connecting block, achieves timely and automatic closing of the low-voltage switchgear door when the operator leaves. This solves the problem of existing independent space self-locking low-voltage switchgears where, when operators need to perform maintenance operations, the cabinet door must be opened to access tools for the internal components. If the required tools are insufficient, operators must retrieve them, and during this process, non-professional personnel may accidentally touch the electrical components inside the switchgear due to the open door, potentially damaging them and causing economic losses.

[0012] By coordinating electric slide rails, electric sliders, and infrared sensors, the cabinet door can be closed promptly when staff leave. This solves the problem of existing independent space self-locking low-voltage cabinets where, after staff have finished inspecting the components inside, their tools may be left inside. If the sensor detects an object, it may send an incorrect signal, mistakenly believing that the staff is still working, causing the cabinet door to remain open and exposing the internal components, posing a safety hazard. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 An exterior schematic diagram;

[0015] Figure 3 for Figure 1 A schematic diagram of the structure of the electric slide rail, electric slider, and infrared sensor;

[0016] Figure 4 for Figure 1 A schematic diagram of the servo motor, the first bevel gear set, and the transmission rod.

[0017] In the diagram: 1. Cabinet body; 11. Cabinet door; 111. Controller; 12. Support leg; 13. Partition plate; 14. Filter screen; 15. Guide rail; 16. Photoelectric sensor; 2. Dustproof box; 3. Rotating assembly; 31. Servo motor; 32. First bevel gear set; 33. Transmission rod; 331. Support plate; 332. Handwheel; 34. Second bevel gear set; 35. Connecting rod; 36. Connecting block; 37. Monitoring unit; 371. Electric slide rail; 3711. Limit block; 372. Electric slider; 373. Infrared sensor. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0020] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0021] When using existing independent space self-locking low-voltage switchgear, staff need to open the cabinet door to operate the internal components when performing maintenance. If they do not have enough tools, they need to go to get the necessary tools. During this process, because the cabinet door is open, non-professional staff may accidentally touch the electrical components inside the low-voltage switchgear, which may damage the components and cause economic losses.

[0022] In view of this, the present invention provides an independent space self-locking low-voltage switchgear. This independent space self-locking low-voltage switchgear, through the cooperation of a servo motor, a first bevel gear set, a transmission rod, a second bevel gear set, a connecting rod, and a connecting block, achieves timely and automatic closing of the low-voltage switchgear door when personnel leave. This solves the problem that with existing independent space self-locking low-voltage switchgear, when personnel need to perform maintenance operations, they must open the cabinet door to operate the internal components with tools. If they do not have enough tools, they need to retrieve them. During this process, because the cabinet door is open, non-professional personnel may accidentally touch the electrical components inside the low-voltage switchgear, potentially damaging them and causing economic losses.

[0023] Example 1, by Figure 1-4As can be seen, the independent space self-locking low-voltage switchgear in this case includes a cabinet body 1, a cabinet door 11 on the front of the cabinet body 1, a controller 111 installed on the outer wall of the cabinet door 11, a dustproof box 2 fixedly connected to the top of the cabinet body 1, and a rotating assembly 3 installed inside the dustproof box 2. The rotating assembly 3 includes: a servo motor 31, fixedly connected to the top of the cabinet body 1 on the side away from the dustproof box 2, and its output end passing through the outer wall of the dustproof box 2 through a sealed bearing and extending into the interior of the dustproof box 2; a first bevel gear set 32, fixedly connected to the output end of the servo motor 31; and a transmission rod 33, located inside the dustproof box 2 and connected to the first bevel gear set 32. 2. The second bevel gear set (34) is installed at the output end of the servo motor 31 and at the end of the transmission rod 33 away from the first bevel gear set 32. Four connecting rods 35 are provided and are rotatably connected to the top and bottom sides of the cabinet 1 through sealed bearings. The two connecting rods 35 at the top are connected to the transmission rod 33 through the second bevel gear set 34. The connecting block 36 is fixedly connected to the end of the connecting rod 35 and its side wall is fixedly connected to the inner wall of the cabinet door 11. The monitoring unit 37 is set on both sides of the inner wall of the cabinet 1. The servo motor 31 drives the connecting rod 35 to rotate through the cooperation of the first bevel gear set 32, the transmission rod 33 and the second bevel gear set 34. The connecting rod 35 drives the cabinet door 11 to rotate through the connecting block 36, so that the cabinet door 11 can be opened and closed.

[0024] In the specific implementation process, it is worth noting that the model of controller 111 is selected according to actual needs, as long as it meets the operational requirements. A sliding door with a lock is provided on one side of the dustproof box 2. The operator can open the door with a key to operate the internal components. The model of servo motor 31 is selected according to actual needs, as long as it meets the operational requirements. The first bevel gear set 32 ​​includes a first bevel gear and a second bevel gear. There are two second bevel gears arranged opposite each other. The inner wall of the first bevel gear is fixedly connected to the output end of the servo motor 31, and the outer wall of the first bevel gear meshes with two second bevel gears. A transmission rod 33 is fixedly connected to the inner wall of each of the two second bevel gears. The second bevel gear set 3... 4. Two sets are provided. The second bevel gear set 34 includes a third bevel gear and a fourth bevel gear. The inner wall of the third bevel gear is fixedly connected to the end of the transmission rod 33 away from the first bevel gear set 32. The outer wall of the third bevel gear is meshed with the fourth bevel gear. The inner wall of the fourth bevel gear is fixedly connected to the top of the connecting rod 35. There are four connecting rods 35 in an L-shape, and two connecting rods 35 on one side form a group. The servo motor 31, through the cooperation of the first bevel gear set 32, the transmission rod 33, the second bevel gear set 34, the connecting rods 35 and the connecting block 36, realizes that when the staff leaves the low-voltage cabinet, the cabinet door 11 will automatically close in time, reducing safety hazards and improving the safety of the independent space self-locking low-voltage cabinet.

[0025] Furthermore, monitoring units 37 are provided on both sides of the inner wall of the cabinet 1. The monitoring unit 37 includes: an electric slide rail 371, which is fixedly connected to the inner wall of the cabinet 1; an electric slider 372, which is slidably connected to the outer wall of the electric slide rail 371; and an infrared sensor 373, which is installed on the outer wall of the electric slider 372. The infrared sensor 373 slides up and down through the cooperation of the electric slider 372 and the electric slide rail 371.

[0026] In the specific implementation process, it is worth noting that there are two electric slide rails 371 and two electric sliders 372. The electric slide rails 371 and electric sliders 372 on one side are a set and work together. The models of electric slide rails 371 and electric sliders 372 are selected according to actual needs to meet the working requirements. The model of infrared sensor 373 is also selected according to actual needs to meet the working requirements. For example, it can be a reflective infrared proximity sensor. Through the cooperation of electric slide rails 371, electric sliders 372 and infrared sensor 373, the cabinet door 11 is closed in time when the staff leaves, which improves the service life of internal components and further improves the safety factor of the independent space self-locking low-voltage cabinet.

[0027] Furthermore, support feet 12 are fixedly connected to the four corners of the bottom of the cabinet 1, a partition plate 13 is fixedly connected to the inner wall of the cabinet 1, a guide rail 15 is fixedly connected to the inner wall of the cabinet 1, a filter screen 14 is set between the two guide rails 15, the filter screen 14 is embedded in the back of the cabinet 1, and a photoelectric sensor 16 is installed on the top of the inner wall of the cabinet 1.

[0028] In the specific implementation process, it is worth noting that the support feet 12 support the cabinet 1, the partition plate 13 divides the internal space of the cabinet 1 into two independent spaces, and the components on both sides do not interfere with each other. The back of the cabinet 1 is provided with multiple through holes, and each through hole is equipped with a filter screen 14. The components inside the cabinet 1 can dissipate heat through the filter screen 14. Multiple guide rails 15 are provided to fix the components. Two photoelectric sensors 16 are provided, located on the top of the inner wall of the cabinet 1 on both sides of the partition plate 13, and a light receiver is provided directly below the photoelectric sensor 16 to work in conjunction with the photoelectric sensor 16. The model of the photoelectric sensor 16 is selected according to actual needs, as long as it meets the working requirements. For example, it can be a through-beam photoelectric sensor, which improves the service life and stability of the independent space self-locking low-voltage cabinet.

[0029] Specifically, when staff need to inspect components inside the self-locking low-voltage cabinet in an independent space, the external power supply of controller 111 remains connected. Upon starting controller 111, staff input a command to connect the external power supply to servo motor 31. Simultaneously, photoelectric sensor 16 connects to the external power supply and starts. Servo motor 31 drives two transmission rods 33 on both sides via the first bevel gear set 32. These two transmission rods 33 then drive connecting rods 35 on both sides via the second bevel gear set 34. The connecting rods 35 drive connecting blocks 36 on both sides, which in turn drive the two cabinet doors 11 to rotate, opening the doors. Staff then begin inspection. If the available tools are insufficient, staff must retrieve new tools from elsewhere. If staff are absent for an extended period, the photoelectric sensor 16 sends a signal to controller 111, which in turn sends a signal to servo motor 31. Servo motor 31 then drives the first bevel gear set 32, transmission rods 33, and second bevel gear set 34. In coordination, the connecting rod 35 rotates, and the connecting rod 35 drives the cabinet door 11 to close via the connecting block 36. When the staff returns, they can reopen the cabinet door 11 via the controller 111 to continue working. After work is completed, the cabinet door 11 is closed via the controller 111 to achieve self-locking. This ensures that the cabinet door 11 closes automatically when the staff leaves the low-voltage cabinet, reducing safety hazards and improving the safety of the independent space self-locking low-voltage cabinet. If the staff forgets to close the door after maintenance and leaves items inside the cabinet 1, and the object blocks the receiver of the photoelectric sensor 16, the photoelectric sensor 16 sends an error signal. The controller 111 assumes that the staff is still working, and after a period of time, according to the preset program, the electric slide rail... 371. The electric slider 372 and infrared sensor 373 are connected to an external power source and started. The electric slider 372 moves on the electric slide rail 371 with the infrared sensor 373. The infrared sensor 373 sends a signal to detect whether there are personnel performing maintenance work. When the infrared sensor 373 does not detect personnel, it transmits the signal to the controller 111. At this time, the controller 111 controls the servo motor 31 to close the cabinet door 11. When the infrared sensor 373 detects that personnel are working, it immediately stops moving to avoid affecting the work of personnel. This realizes the timely closing of the cabinet door 11 when personnel leave, improves the service life of internal components, and enhances the practicality of the independent space self-locking low-voltage cabinet.

[0030] Example 2, by Figure 1-4 It can be seen that the outer wall of the transmission rod 33 is rotatably connected to the support plate 331 through the bearing, the bottom of the support plate 331 is fixedly connected to the top of the cabinet 1, and one end of the transmission rod 33 is fixedly connected to the handwheel 332.

[0031] In the specific implementation process, it is worth noting that there are two support plates 331. The support plates 331 support the transmission rod 33. The handwheel 332 is located on the side near the dust box 2 with the sliding door. When the motor has a problem, the staff can also open the cabinet door 11 by turning the handwheel 332, which enhances the practicality of the independent space self-locking low-voltage cabinet.

[0032] Furthermore, both ends of the electric slide rail 371 are fixedly connected to limit blocks 3711, and the outer walls of the two limit blocks 3711 are fixedly connected to the inner wall of the cabinet 1.

[0033] In the specific implementation process, it is worth noting that there are four limit blocks 3711, with two at each end of an electric slide rail 371. The limit blocks 3711 limit the electric slider 372, preventing the electric slider 372 from moving beyond the maximum distance, thereby improving the operational stability of the independent space self-locking low-voltage cabinet.

[0034] Specifically, firstly, the support plate 331 supports the transmission rod 33, and the handwheel 332 is located on the side near the dust box 2 with the sliding door. When the motor malfunctions, the operator can also open the cabinet door 11 by turning the handwheel 332, thus enhancing the practicality of the independent space self-locking low-voltage cabinet. Secondly, the limit block 3711 limits the electric slider 372, preventing the electric slider 372 from moving beyond the maximum distance, thereby improving the operational stability of the independent space self-locking low-voltage cabinet.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-locking low-voltage cabinet for independent space, comprising a cabinet body (1), characterized in that: The front of the cabinet body (1) is provided with a cabinet door (11), the outer wall of the cabinet door (11) is provided with a controller (111), the top of the cabinet body (1) is fixedly connected with a dustproof box (2), the inside of the dustproof box (2) is provided with a rotating assembly (3), the rotating assembly (3) comprises: A servo motor (31) is fixedly connected to one side of the top of the cabinet body (1) away from the dustproof box (2), and the output end penetrates the outer wall of the dustproof box (2) through a sealing bearing and extends into the inside of the dustproof box (2); A first bevel gear set (32) is fixedly connected to the output end of the servo motor (31); A transmission rod (33) is arranged in the inside of the dustproof box (2) and is mounted to the output end of the servo motor (31) through the first bevel gear set (32); A second bevel gear set (34) is mounted to one end of the transmission rod (33) away from the first bevel gear set (32); Four connecting rods (35) are arranged and are rotatably connected to the top and bottom of the cabinet body (1) through sealing bearings respectively, and the two connecting rods (35) located at the top are drivingly connected through the second bevel gear set (34) and the transmission rod (33); A connecting block (36) is fixedly connected to the end of the connecting rod (35), and the side wall is fixedly connected to the inner wall of the cabinet door (11); Monitoring units (37) are arranged on both sides of the inner wall of the cabinet body (1); The servo motor (31) drives the connecting rod (35) to rotate through the first bevel gear set (32), the transmission rod (33) and the second bevel gear set (34), and the connecting rod (35) drives the cabinet door (11) to rotate through the connecting block (36), so that the cabinet door (11) can be opened and closed.

2. The self-locking low voltage cabinet according to claim 1, characterized in that: The inner wall of the cabinet body (1) is provided with monitoring units (37), and the monitoring units (37) comprise: An electric sliding rail (371) is fixedly connected to the inner wall of the cabinet body (1); An electric sliding block (372) is slidingly connected to the outer wall of the electric sliding rail (371); An infrared sensor (373) is mounted on the outer wall of the electric sliding block (372); The infrared sensor (373) slides up and down through the cooperation of the electric sliding block (372) and the electric sliding rail (371).

3. The self-supporting low voltage switchgear according to claim 1, characterized in that: Supporting feet (12) are fixedly connected to the bottom corners of the cabinet body (1), the inner wall of the cabinet body (1) is fixedly connected with a spacing plate (13), the inner wall of the cabinet body (1) is fixedly connected with a guide rail (15), a filter screen (14) is arranged between the two guide rails (15), the filter screen (14) is embedded in the back of the cabinet body (1), and a photoelectric sensor (16) is mounted on the top of the inner wall of the cabinet body (1).

4. The self-supporting low voltage switchgear according to claim 1, wherein: A supporting plate (331) is rotatably connected to the outer wall of the transmission rod (33) through a bearing, the bottom of the supporting plate (331) is fixedly connected to the top of the cabinet body (1), and one end of the transmission rod (33) is fixedly connected with a hand wheel (332).

5. The self-supporting low voltage switchgear according to claim 2, wherein: Both ends of the electric sliding rail (371) are fixedly connected with a limiting block (3711), and outer walls of the two limiting blocks (3711) are fixedly connected to inner walls of the cabinet body (1).

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