High-safety power distribution cabinet convenient to maintain

Abstract

The invention relates to the technical field of power distribution cabinets, and particularly discloses a high-safety power distribution cabinet convenient to maintain, which comprises a cabinet body and a cabinet door, a top sealing box is arranged on the upper surface of the cabinet body, a liquid storage box, a storage battery and a controller are arranged in the top sealing box, and a plurality of horizontal frame assemblies are arranged in the cabinet body at intervals; the horizontal row frame assembly comprises a U-shaped strip with a forward opening, a moving strip capable of moving front and back is connected into the U-shaped strip through a spring, a strip-shaped sliding opening is formed in the moving strip, a plurality of limiting seat blocks are arranged in the strip-shaped sliding opening in a sliding mode, a mounting plate is arranged at the front end of each limiting seat block, and a tooth surface is arranged at the rear end of each limiting seat block; according to the power distribution cabinet disclosed by the invention, in the overhaul and maintenance process, the overhaul and maintenance process of electrical parts in the whole power distribution cabinet is more convenient and quicker, the structural design is simple and reasonable, the power distribution cabinet can operate in a power-off state, the interior of the whole power distribution cabinet is easier to clean, and the use effect is very excellent.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, and in particular discloses a high-safety power distribution cabinet that is easy to maintain. Background Art

[0002] The power distribution cabinet is a power distribution and control device that integrates the reasonable distribution, protection, monitoring and intelligent management of electric energy. It is an indispensable and important part of the modern power distribution system. The power distribution cabinets on the market are simple in structure. The main body is made of stainless steel plate and is processed by bending. There are multiple horizontal rows at equal intervals inside for assembling corresponding electrical components. At the same time, the cabinet body is provided with corresponding heat dissipation holes, inlet and outlet holes, etc.

[0003] For example, the invention patent with application number 2018101149810 discloses a busbar shockproof distribution cabinet, including a cabinet body, a fixing frame is arranged in the cabinet body, a busbar layer is arranged on the top of the distribution cabinet body, the busbar layer is provided with a shockproof structure, an insulator is arranged on the shockproof structure, and the busbar is arranged on the insulator; the shockproof structure includes: a transverse guide rail, the transverse guide rail is horizontally fixed to the bottom of the busbar layer parallel to the long side of the cabinet body, a first slider is arranged on the transverse guide rail, and the first slider can slide on the transverse guide rail; a longitudinal guide rail is arranged on the first slider, the longitudinal guide rail is arranged vertically and horizontally with the transverse guide rail, and a second slider is arranged on the longitudinal guide rail, and the second slider can slide on the longitudinal guide rail; the insulator is arranged on the second slider. The distribution cabinet disclosed in the patent is based on the structure of the traditional distribution cabinet, and the busbar frame is arranged as a shock-absorbing mechanism, which can play a good role in buffering the vibration of the busbar. However, due to the structural design problems, the distribution cabinet has problems such as being difficult to repair and maintain, and having great safety hazards during the repair and maintenance process. Among them, the electrical components in the distribution cabinet are all fixed side by side on the mounting holes of the busbar frame by bolts, which often have blind spots during inspection and maintenance. It is necessary to remove the adjacent electrical components for effective inspection and maintenance, resulting in cumbersome procedures; in addition, the distribution cabinet has a certain depth, and the electrical components are fixed on the busbar frame, so the operator needs to extend his body into it to operate during inspection and maintenance, which poses a great risk of electric shock. Finally, some outdoor distribution cabinets need to be air-blown and cleaned every once in a while, and the electrical components are fixed side by side, which makes it easy for the dust stirred up during the air-blowing and cleaning process to fall on the attached electrical components, requiring repeated cleaning or even multiple cleanings to fail to be effectively cleaned. Therefore, in response to the above-mentioned shortcomings of existing distribution cabinets, the present application proposes a high-safety distribution cabinet that is easy to maintain. Summary of the invention

[0004] The present invention aims to provide a high-security power distribution cabinet that is easy to maintain, so as to solve the problems that the existing power distribution cabinets are difficult to inspect and maintain, and have great safety hazards during the inspection and maintenance process.

[0005] The present invention is achieved through the following technical solutions: A high-safety power distribution cabinet that is easy to maintain, comprising a cabinet body and a cabinet door, wherein a top sealing box is arranged on the upper surface of the cabinet body, a liquid storage box, a battery and a controller are arranged in the top sealing box, and a plurality of horizontal rack assemblies are arranged in the upper and lower intervals in the cabinet body; The horizontal rack assembly comprises a U-shaped bar with an opening facing forward, a moving bar that moves forward and backward is connected to the U-shaped bar by a spring, and a guide is arranged between the moving bar and the U-shaped bar, a strip-shaped sliding opening is opened on the moving bar, a plurality of limit seats are slidably arranged in the strip-shaped sliding opening, a mounting plate is arranged at the front end of each limit seat, a tooth surface is arranged at the rear end of the limit seat, and a rack that is aligned with the strip-shaped sliding opening is arranged on the front side surface of the middle section of the U-shaped bar; A telescopic tube is fixedly arranged on the U-shaped bar, the front end of the telescopic tube is connected to the movable bar, the rear end of the telescopic tube is connected to a liquid filling tube, the end of the liquid filling tube is provided with a solenoid valve, the water inlet end of the solenoid valve is connected to a liquid infusion tube extending into the top sealing box, and the end of the liquid infusion tube is provided with a liquid pump connected to the liquid storage tank.

[0006] As a further arrangement of the above scheme, vertical bars extending downward are provided at both ends of the movable bar, and an ash receiving hopper with its opening facing backward is rotatably arranged between the two vertical bars. A guide frame plate is fixed in the cabinet located on the rear side of the horizontal frame assembly, and a guide inclined slot opening which is higher in the front and lower in the rear is provided on the guide frame plate. A guide column which acts on the guide inclined slot opening is provided at the rear end of the ash receiving hopper.

[0007] As a further configuration of the above solution, an ash collecting trough is detachably provided on the bottom wall of the cabinet just below the rear end of the ash receiving hopper.

[0008] As a further configuration of the above scheme, the guide member includes slide rails arranged at the left and right ends of the U-shaped bar, and the left and right ends of the movable bar are both provided with sliders that interact with the corresponding slide rails.

[0009] As a further configuration of the above scheme, two telescopic tubes are provided in the horizontal frame assembly, and the two telescopic tubes are fixedly connected to the left and right ends of the U-shaped bar respectively, the front ends of the two telescopic tubes are sealed and connected to the movable bar, and the rear ends of the two telescopic tubes are commonly connected to a liquid filling tube, one end of the liquid filling tube is sealed, and the solenoid valve is arranged at the other end where the liquid filling tube is connected to the infusion tube.

[0010] As a further configuration of the above scheme, a pair of vertically arranged vertical bar frames are arranged on the inner walls on the left and right sides of the cabinet, and a plurality of the horizontal rack assemblies are arranged on the vertical bar frames on both sides at intervals up and down.

[0011] As a further configuration of the above solution, both front and rear ends of the cabinet body are provided with openings, and the two cabinet doors are rotatably connected to the openings at the front and rear ends of the cabinet body respectively.

[0012] As a further configuration of the above solution, a rain shield is provided at the upper end of the top sealing box.

[0013] When the high-security power distribution cabinet that is easy to maintain disclosed by the present invention needs to be inspected and maintained, the cabinet door is opened and the main power switch is turned off, so that the inspection and maintenance of the entire power distribution cabinet can be carried out in a power-off state. Subsequently, the control button on the controller is pressed to open the corresponding solenoid valve and start the liquid pump, and the liquid in the liquid storage tank is filled into the telescopic tube in the corresponding horizontal frame assembly through the liquid pump, so that the telescopic tube is extended under the action of the hydraulic pressure to overcome the action of the spring, and the moving bar is pushed toward the cabinet opening under the action of the extension of the telescopic tube, and all the limit seats on the moving bar are separated from the rack during the pushing process, so that the limit seats can be arbitrarily moved and adjusted along the strip-shaped sliding port, which is convenient for arbitrarily moving the electrical components installed on each mounting plate, so that the electrical components originally fixed side by side can be independently taken out for rapid inspection and maintenance. After the inspection and maintenance is completed, the spring restoring force is used to move the moving bar backward, thereby compressing the telescopic tube, so that the liquid previously filled in the telescopic tube flows back into the liquid storage tank again. Finally, when the electrical components on another horizontal rack assembly are inspected and maintained, the above actions can be repeated by pressing the corresponding button on the controller.

[0014] In addition, the present invention further provides an ash receiving hopper under each horizontal rack assembly, and the ash receiving hopper is adjusted from an inclined state to a horizontal state through the action between the guide column and the guide inclined slot on the guide rack plate when the moving bar carries the assembled electrical components forward, and then the upper and lower electrical components can be separated during the air blowing and dust removal process, and the ash receiving hopper can be used to receive the cleaned dust. Finally, during the process of the moving bar moving backward, the ash receiving hopper can be adjusted from a horizontal state to a lower end inclined state, so that the dust in the ash receiving hopper is discharged from the rear end opening and finally collected by the ash collecting trough.

[0015] Compared with the prior art, the present invention has the following beneficial effects: During the inspection and maintenance process, the power distribution cabinet disclosed in the present invention can actively extend a corresponding row of electrical components from the inside of the cabinet to the opening, thereby avoiding the safety hazard caused by the operator extending his body into the cabinet to perform the operation; at the same time, when the electrical components are extended to the cabinet opening, the limit seat blocks used to install the electrical components are released from their locked state, and the operator can move each independent electrical component at will, so that the electrical components originally fixed side by side can be independently taken out for quick inspection and maintenance, making the inspection and maintenance process of the electrical components inside the entire distribution cabinet more convenient and quick, its structural design is simple and reasonable, and it can operate when the distribution cabinet is powered off, and the use effect is very excellent.

[0016] The present invention further provides an ash hopper under the horizontal frame assembly, and utilizes the interaction between the guide column on the ash hopper and the guide inclined slot on the guide frame plate to enable the ash hopper to adjust its posture according to the state of the horizontal frame assembly. When the electrical components are extended to the opening of the cabinet, the ash hopper is in a horizontal state. On the one hand, it is used to separate the electrical components of the upper and lower layers to avoid influence during the air blowing cleaning process. On the other hand, it is used to receive the cleaned dust, and when a row of electrical components retracts, the ash hopper automatically tilts downward, so that the received dust is discharged and cleaned together, making the interior of the entire distribution cabinet easier to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the external three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the internal three-dimensional structure at a first angle of the present invention; Figure 3 It is a schematic diagram of the internal second angle three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the horizontal rack assembly in the present invention; Figure 5 It is a three-dimensional assembly diagram of the horizontal rack assembly in the present invention from a first angle; Figure 6 A second angle three-dimensional assembly diagram of the horizontal rack assembly of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the horizontal frame assembly, ash receiving hopper, and guide frame plate in Example 2 of the present invention. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 7 , and describes the application in detail with reference to embodiments. Example 1

[0021] Embodiment 1 discloses a high-security power distribution cabinet that is easy to maintain. Figures 1 to 3 , including a cabinet 1 surrounded by stainless steel plates, a rain shield 2 is arranged above the cabinet 1, and a top sealing box 3 connected to the upper surface of the cabinet 1 is arranged on the lower surface of the rain shield 2. Openings are arranged on the front and rear sides of the cabinet 1, and cabinet doors 4 are rotatably connected to the openings on both sides of the front and rear. The design of the front and rear double cabinet doors 4 facilitates the inspection and treatment of the interior of the cabinet 1. In addition, heat dissipation holes 100 are opened on the left and right sides of the cabinet 1, so that during the operation of the power distribution cabinet, the internal heat can be dissipated and cooled by the cold air convected from the outside. A pair of vertically arranged vertical bar frames 5 are installed on the inner walls on the left and right sides of the cabinet 1, and a plurality of installation holes are arranged at intervals on the vertical bar frames 5, and then a plurality of horizontal rack assemblies 6 arranged at intervals from top to bottom are installed between the two vertical bar frames 5.

[0022] Reference Figures 4 to 6 The horizontal rack assembly 6 includes a U-shaped bar 601 with an opening facing forward, and slide rails 602 are provided at both left and right ends of the U-shaped bar 601, and a rack 603 is fixedly provided on the front side of the middle section of the U-shaped bar 601. A moving bar 604 is provided in the U-shaped bar 601, and sliders 605 that interact with the corresponding slide rails 602 are provided at both left and right ends of the moving bar 604, and then a strip-shaped sliding opening 606 that is aligned with the rack 603 in front and back is provided in the middle section of the moving bar 604. A plurality of limiting seats 607 are slidably provided in the strip-shaped sliding opening 606, and the rear side of each limiting seat block 607 is provided with a tooth surface 6071 that interacts with the rack 603, and the front side of the limiting seat block 607 is provided with a mounting plate 608 for mounting various electrical components, and the mounting plate 608 is provided with corresponding waist-shaped holes, so that the same mounting plate 608 can be used for the rapid installation of different electrical components.

[0023] Telescopic tubes 609 are fixedly connected to the front side of the U-shaped bar 601 on the left and right sides of the strip-shaped sliding opening 606, and the front end of the telescopic tube 609 is sealed and fixedly connected to the moving bar 604, and then a spring 610 is arranged between the moving bar 604 and the U-shaped bar 601. A liquid filling tube 611 is arranged parallel to the U-shaped bar 601 on the rear side, one end of the liquid filling tube 611 is sealed, and the other end is provided with a solenoid valve 612, and then the rear end of each telescopic tube 609 is connected to the liquid filling tube 611.

[0024] Reference Figure 3A liquid infusion tube 7 extending vertically out of the top of the cabinet 1 is arranged on one side of the inner cavity of the cabinet 1, and the liquid inlet end of the solenoid valve 612 on each horizontal rack assembly 6 is connected to the liquid infusion tube 7. A liquid storage tank 8 and a battery 9 are arranged on the upper surface of the cabinet 1, and the liquid storage tank 8 and the battery 9 are sealed by the top sealing box 3 in a sealed space enclosed by the rain shield 2, the top sealing box 3 and the cabinet 1. A liquid pump 10 connected to the liquid infusion tube 7 is arranged on the liquid storage tank 8, and the liquid pump 10 is independently powered by the battery 9. Finally, a controller 11 with a control button is also arranged on the front side of the top sealing box 3, and the solenoid valve 612 and the liquid pump 10 in each horizontal rack assembly 6 are connected to the signal output end of the controller 11. By pressing the corresponding control button on the controller 11, the corresponding solenoid valve 612 can be opened and the liquid pump 10 can be started, and the liquid in the liquid storage tank 8 can be filled into the telescopic tube 609 of the corresponding horizontal rack assembly 6 through the liquid infusion tube 7.

[0025] When the power distribution cabinet disclosed in this embodiment 1 needs to be inspected and maintained, the operator opens the cabinet door 4 on the front side and turns off the main switch to turn it off. Then, the corresponding control button on the controller 11 is pressed, and the corresponding solenoid valve 612 is opened and the liquid pump 10 is started. Under the action of the liquid pump 10, the liquid in the liquid storage tank 8 is filled into the telescopic tube 609 of the corresponding horizontal rack assembly 6, so that the telescopic tube 609 is extended under the action of the hydraulic pressure and overcomes the action of the spring 610, so that the moving bar 604 equipped with the electrical device moves forward along the slide rail 602 until the moving bar 604 moves to the front end opening of the cabinet 1 to close the solenoid valve 612 and the liquid pump 10.

[0026] At this time, since the moving bar 604 carries the limiting seat block 607 to move forward for a distance, the tooth surface 6071 on the rear side of all the limiting seat blocks 607 is separated from the rack 603, so that each limiting seat block 607 can move freely along the strip-shaped sliding opening 606, so that the limiting seat block 607 installed with the electrical device to be maintained can be separated from the others and then processed quickly and separately, which greatly facilitates the inspection and maintenance of the corresponding electrical device. After the maintenance is completed, all the limiting seat blocks 607 are moved and reset along the strip-shaped sliding opening 606, and the solenoid valve 612 is opened, and then the moving bar 604 is moved back under the action of the restoring force of the spring 610, and the liquid in the telescopic tube 609 is discharged, until the tooth surface 6071 on the rear side of the limiting seat block 607 is meshed with the rack 603 again to fix the electrical device, and finally the cabinet door 4 is closed. Example 2

[0027] Example 2 discloses a high-security power distribution cabinet that is easy to maintain and is improved in design based on the technical solution in Example 1. The similarities between Example 2 and Example 1 will not be described again.

[0028] Reference Figure 3 and attached Figure 7 In this embodiment 2, vertical bars 613 extending downward are provided at both left and right ends of the moving bar 604, and an ash receiving hopper 614 with a rear end opening is rotatably provided between the two vertical bars 613, so that the ash receiving hopper 614 is located directly below a row of mounting plates 608. At the same time, guide columns 615 protruding toward both sides are provided at the rear ends of the left and right sides of the ash receiving hopper 614.

[0029] A guide frame plate 12 is fixedly connected to the left and right inner walls of the cabinet 1 at the rear side of each horizontal frame assembly 6, and a guide inclined slot 121 is provided on each guide frame plate 12 to interact with the corresponding guide column 615, and the guide inclined slot 121 is inclined with the front higher and the rear lower. Finally, an ash collecting trough 13 is provided on the bottom wall of the cabinet 1 just below the rear end of all the ash receiving hoppers 614, and the ash collecting trough 13 is detachably mounted on the bottom wall of the cabinet 1.

[0030] Through the above-mentioned improved design, when the distribution cabinet is used outdoors for a long time, resulting in serious dust on the surface of the internal electrical components and requiring regular cleaning, the cabinet door 1 is opened and the main switch is turned off, and then the corresponding control button on the controller 11 is pressed to open the corresponding solenoid valve 612 and start the liquid pump 10.

[0031] When the liquid is filled into the telescopic tube 609 to overcome the force of the spring 610 and push the moving bar 604 forward along the slide rail 602, the front ends of the left and right sides of the ash receiving hopper 614 are rotatably connected to the vertical bar 613, and under the action of the guide column 615 and the guide inclined slot 12, the originally inclined ash receiving hopper 614 is gradually adjusted to a horizontal state, thereby separating the upper and lower rows of electrical components through the ash receiving hopper 614. Subsequently, the operator holds the dust blowing gun and points it downward at the electrical components, so that the high-pressure airflow blows off the dust on the surface of the electrical components, and the blown dust directly falls into the ash receiving hopper 614 to avoid falling on the electrical components below.

[0032] When the dust on the surface of the discharge device is cleaned, the telescopic tube 609 is controlled to shorten so that the moving bar 604 moves backward and resets. During the backward movement of the moving bar 604, the rear end of the ash hopper 614 is tilted downward again under the action of the guide column 615 and the guide inclined slot 12, so that the dust on the ash hopper 614 falls from the rear end opening and is collected by the ash collecting trough 13. Finally, the ash collecting trough 13 can be cleaned regularly.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-safety power distribution cabinet that is easy to maintain, comprising a cabinet body and a cabinet door, characterized in that: The upper surface of the cabinet is provided with a top sealing box, in which a liquid storage tank, a battery and a controller are arranged, and a plurality of horizontal rack assemblies are arranged in the upper and lower intervals in the cabinet; The horizontal rack assembly comprises a U-shaped bar with an opening facing forward, a moving bar that moves forward and backward is connected to the U-shaped bar by a spring, and a guide is arranged between the moving bar and the U-shaped bar, a strip-shaped sliding opening is opened on the moving bar, a plurality of limit seats are slidably arranged in the strip-shaped sliding opening, a mounting plate is arranged at the front end of each limit seat, a tooth surface is arranged at the rear end of the limit seat, and a rack that is aligned with the strip-shaped sliding opening is arranged on the front side surface of the middle section of the U-shaped bar; A telescopic tube is fixedly arranged on the U-shaped bar, the front end of the telescopic tube is connected to the movable bar, the rear end of the telescopic tube is connected to a liquid filling tube, the end of the liquid filling tube is provided with a solenoid valve, the water inlet end of the solenoid valve is connected to a liquid infusion tube extending into the top sealing box, and the end of the liquid infusion tube is provided with a liquid pump connected to the liquid storage tank.

2. A high-security power distribution cabinet that is easy to maintain according to claim 1, characterized in that: The left and right ends of the movable bar are both provided with vertical bars extending downwards, and a ash receiving hopper with an opening facing backwards is rotatably provided between the two vertical bars. A guide frame plate is fixed in the cabinet located on the rear side of the horizontal frame assembly, and a guide inclined slot opening which is higher in the front and lower in the rear is provided on the guide frame plate. A guide column which acts on the guide inclined slot opening is provided at the rear end of the ash receiving hopper.

3. A high-security power distribution cabinet that is easy to maintain according to claim 2, characterized in that: An ash collecting trough is detachably provided on the bottom wall of the cabinet just below the rear end of the ash receiving hopper.

4. A high-security power distribution cabinet that is easy to maintain according to claim 1, characterized in that: The guide member comprises slide rails arranged at the left and right ends of the U-shaped bar, and the left and right ends of the moving bar are both provided with sliders acting with the corresponding slide rails.

5. A high-security power distribution cabinet that is easy to maintain according to claim 4, characterized in that: There are two telescopic tubes in the horizontal frame assembly, and the two telescopic tubes are fixedly connected to the left and right ends of the U-shaped bar respectively. The front ends of the two telescopic tubes are sealed and connected to the movable bar. The rear ends of the two telescopic tubes are commonly connected to a liquid filling tube, one end of the liquid filling tube is sealed, and the solenoid valve is arranged at the other end of the liquid filling tube connected to the infusion tube.

6. A high-security power distribution cabinet that is easy to maintain according to claim 1, characterized in that: A pair of vertically arranged vertical bar frames are arranged on the inner walls on the left and right sides of the cabinet body, and a plurality of horizontal rack components are arranged on the vertical bar frames on both sides at intervals.

7. A high-security power distribution cabinet that is easy to maintain according to claim 1, characterized in that: The front and rear ends of the cabinet body are both opened, and the two cabinet doors are rotatably connected to the openings at the front and rear ends of the cabinet body respectively.

8. A high-security power distribution cabinet that is easy to maintain according to claim 1, characterized in that: The upper end of the top sealing box is provided with a rain shield.

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