Valve mechanism of 6kV switch cabinet

Abstract

The utility model relates to the technical field of switch cabinet manufacturing, in particular to a valve mechanism of a 6kV switch cabinet, which comprises a switch cabinet body, ventilation assemblies are arranged on two sides of the switch cabinet body, guide rods are mounted on two sides of the inner wall of the switch cabinet body, springs are sleeved at the lower ends of the surfaces of the guide rods, cylinders are arranged above the springs, and the ventilation assemblies are arranged on the ventilation assemblies. The sliding device comprises a cylinder, the inner wall of the cylinder is connected with the outer wall of a guide rod in a sliding mode, a fixing block is installed on one side of the cylinder, and the other end of the fixing block is fixedly connected with a valve plank.The sliding stability and smoothness are guaranteed mainly through close fit of the inner wall of the cylinder and the outer wall of the guide rod; according to the utility model, through the arrangement of the cylinder, wear and noise caused by friction are reduced, the arrangement of the spring not only provides necessary elastic support for sliding of the cylinder, but also can play a buffering role when the valve plate is closed, the impact on the switch cabinet body is reduced, and the movement of the valve plate is more stable.

Description

Technical Field

[0001] This utility model relates to the field of switchgear manufacturing technology, specifically to a door mechanism for a 6kV switchgear. Background Technology

[0002] With the development of power systems, 6kV switchgear, as an important power distribution device in power systems, faces increasingly higher requirements for performance and safety. Traditional switchgear valve mechanisms have some shortcomings in design and manufacturing, such as poor valve conductivity, instability, and easy detachment or jamming. These problems not only affect the normal operation of the switchgear but may also threaten the safety and stability of the power system. To solve these problems, the industry has begun to research and apply new spring-loaded valve mechanisms.

[0003] A search revealed Chinese patent application number 202323289178.6, which discloses a door mechanism for a switchgear. The mechanism includes two side plates and a door assembly. The door assembly comprises an upper contact baffle, an upper door, a lower contact baffle, a lower door, two connecting rods, and two drive crank arms. The two side plates are respectively provided with guide sliding holes that cooperate with the upper and lower doors. Upper and lower guide rods are respectively provided on both sides of the upper and lower doors. Each upper and lower guide rod is provided with a pulley that cooperates with the guide sliding hole. Each upper and lower guide rod has an upper pull plate and a lower pull plate protruding from the side plates. Fixed pulleys that cooperate with the upper and lower pull plates are respectively provided on the two side plates. A pull rope is provided on each fixed pulley, with one end of the pull rope connected to the upper pull plate and the other end connected to the lower pull plate. This utility model has the advantages of simple structure, reliable performance, convenient operation, and long service life.

[0004] However, the door mechanism of the aforementioned switchgear still has the following drawbacks:

[0005] The use of complex components such as linkages and drive cranks in this valve mechanism may cause the connection points between these components to fail, thus preventing the valve mechanism from working properly. Therefore, we need a valve mechanism for a 6kV switchgear to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a door mechanism for a 6kV switchgear. It primarily ensures the stability and smoothness of sliding by tightly fitting the inner wall of the cylinder with the outer wall of the guide rod, reducing wear and noise caused by friction. The spring not only provides necessary elastic support for the cylinder's sliding but also acts as a buffer when the door plate closes, reducing the impact on the switchgear body. The movement of the door plate is more stable and controllable, ensuring stability during opening and closing and improving the reliability of the entire door mechanism. Even under long-term operation or frequent operation, it can maintain good working condition.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a door mechanism for a 6kV switchgear, comprising a switchgear body, ventilation components on both sides of the switchgear body, guide rods installed on both sides of the inner wall of the switchgear body, the two ends of the guide rods being fixedly installed on the top and bottom ends of the switchgear body, a buffer block installed on the top end of the guide rod, a spring sleeved on the lower end of the surface of the guide rod, a cylinder provided above the spring, the inner wall of the cylinder being slidably connected to the outer wall of the guide rod, a fixing block installed on one side of the cylinder, one end of the fixing block being connected to the side wall of the cylinder, and a door plate being fixedly connected to the other end of the fixing block, and limiting components for preventing the door plate from tilting being provided on both sides of the door plate.

[0008] Preferably, the ventilation component includes ventilation slots, which are formed on both outer walls of the switch cabinet body and are inclined.

[0009] Preferably, a through slot is provided at the top of the switch cabinet body, and a heat dissipation component is installed inside the through slot. The heat dissipation component includes a heat dissipation motor, a support frame, and fan blades. The output shaft of the heat dissipation motor passes through the center of the support frame and is connected to the rotation shaft of the fan blades. The side wall of the support frame is fixedly connected to the inner wall of the through slot.

[0010] Preferably, a dustproof plate is installed on the top surface of the through groove, and the side wall of the dustproof plate is embedded in the inner wall of the through groove.

[0011] Preferably, the limiting component includes a limiting groove and a limiting block. The limiting groove is formed on the inner walls of both sides of the switch cabinet body. One end of the limiting block is installed at both ends of the door plate, and the other end of the limiting block is slidably disposed inside the limiting groove.

[0012] Preferably, a baffle is provided below the valve panel, and threaded grooves are provided on both sides of the bottom end of the baffle and on the side wall of the switch cabinet body, and bolts are threaded on the inner wall of the threaded groove.

[0013] Preferably, the top of the baffle is provided with a retaining groove, and the valve plate can be inserted into the retaining groove when it moves up and down along the guide rod.

[0014] Preferably, the depth of the retaining groove is greater than the height of the door panel.

[0015] Preferably, a pull-down block is provided on the upper surface of the valve panel.

[0016] Preferably, the front end of the switch cabinet body is provided with a side door, and a door handle is installed on the surface of the side door.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model mainly ensures the stability and smoothness of sliding by tightly fitting the inner wall of the cylinder with the outer wall of the guide rod, reducing wear and noise caused by friction. The spring not only provides necessary elastic support for the sliding of the cylinder, but also plays a buffering role when the door plate is closed, reducing the impact on the switch cabinet body. The movement of the door plate is more stable and controllable, which not only ensures the stability of the door plate during opening and closing, but also improves the reliability of the entire door mechanism. Even under long-term operation or frequent operation, it can maintain a good working condition. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the open structure of the switch cabinet body of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection between the baffle and the door panel of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of both sides of the movable door panel of this utility model;

[0023] Figure 5 This is an exploded view of the heat dissipation component of this utility model.

[0024] In the diagram: 1. Switch cabinet body; 2. Side-opening door; 201. Door handle; 3. Bolt; 4. Ventilation slot; 5. Dustproof plate; 6. Cooling motor; 601. Support frame; 602. Fan blade; 7. Baffle; 701. Baffle groove; 8. Door panel; 801. Pull-down block; 9. Guide rod; 10. Buffer block; 11. Fixing block; 12. Cylinder; 13. Spring; 14. Limiting groove; 15. Limiting block. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-5 This utility model provides a technical solution: a door mechanism for a 6kV switchgear, including a switchgear body 1, ventilation components on both sides of the switchgear body 1, guide rods 9 installed on both sides of the inner wall of the switchgear body 1, the two ends of the guide rods 9 fixedly installed on the top and bottom ends of the switchgear body 1, a buffer block 10 installed on the top end of the guide rods 9, a spring 13 sleeved on the lower end of the surface of the guide rods 9, a cylinder 12 installed above the spring 13, the inner wall of the cylinder 12 slidably connected to the outer wall of the guide rods 9, a fixing block 11 installed on one side of the cylinder 12, one end of the fixing block 11 connected to the side wall of the cylinder 12, and a door plate 8 fixedly connected to the other end of the fixing block 11, with limiting components on both sides of the door plate 8 to prevent the door plate 8 from tilting;

[0027] In use, the inner wall of the cylinder 12 and the outer wall of the guide rod 9 are closely fitted to ensure the stability and smoothness of the sliding, reducing wear and noise caused by friction. The spring 13 not only provides the necessary elastic support for the sliding of the cylinder 12, but also plays a buffering role when the valve plate 8 is closed, reducing the impact on the switch cabinet body 1. The movement of the valve plate 8 is more stable and controllable, which not only ensures the stability of the valve plate 8 in the opening and closing process, but also improves the reliability of the entire valve mechanism. Even under long-term operation or frequent operation, it can maintain a good working condition.

[0028] The ventilation component includes ventilation slots 4, which are formed on both outer walls of the switch cabinet body 1. The ventilation slots 4 are inclined, which can more effectively guide airflow, increase the contact area between air and the heat source inside the switch cabinet, thereby improving heat dissipation efficiency. In addition, the inclined ventilation slots 4 are more structurally easier to prevent the accumulation of dust and debris.

[0029] The top of the switch cabinet body 1 is provided with a through slot, and a heat dissipation component is installed inside the through slot. The heat dissipation component includes a heat dissipation motor 6, a support frame 601 and a fan blade 602. The output shaft of the heat dissipation motor 6 passes through the center of the support frame 601 and is connected to the rotation shaft of the fan blade 602. The side wall of the support frame 601 is fixedly connected to the inner wall of the through slot. Through the heat dissipation effect of the heat dissipation component, the temperature inside the switch cabinet can be effectively controlled to prevent equipment failure or damage caused by overheating.

[0030] A dustproof plate 5 is installed on the top surface of the through slot. The side wall of the dustproof plate 5 is embedded in the inner wall of the through slot. By reasonably designing the size and material of the dustproof plate 5, the air circulation inside the switch cabinet can be ensured while ensuring the dustproof effect. In this way, the heat dissipation components can still effectively dissipate the heat inside the switch cabinet and maintain the normal operating temperature of the equipment.

[0031] The limiting assembly includes a limiting groove 14 and a limiting block 15. The limiting groove 14 is formed on the inner walls of both sides of the switch cabinet body 1. The limiting block 15 is set at both ends of the door plate 8. Specifically, one limiting block 15 can be set at the upper and lower ends of each side of the door plate 8 (a total of four). The limiting blocks 15 are slidably set inside the limiting groove 14. Through the sliding cooperation of multiple limiting blocks 15 in the limiting groove 14, the door plate 8 can be effectively prevented from tilting or derailing when opening or closing.

[0032] A baffle 7 is provided below the valve plate 8. Threaded grooves are provided on both sides of the bottom end of the baffle 7 and on the side wall of the switch cabinet body 1. Bolts 3 are installed in the inner wall of the threaded grooves. The threaded connection of the bolts 3 has a reliable fastening effect, which can effectively prevent the baffle 7 from falling off due to loosening during long-term use. In addition, the valve plate 8 uses the latest insulation board to eliminate problems such as electrical conductivity of the valve.

[0033] A groove 701 is provided at the top center of the baffle 7. When the valve plate 8 moves up and down along the guide rod, it can be inserted into the groove 701. A pull-down block 801 is installed on the surface of the valve plate 8. The depth of the groove 701 can be set as needed to be higher than the bottom of the valve plate 8 to the height of the pull-down block 801. The width of the groove 701 is equivalent to the thickness of the valve plate 8. A side door 2 is provided at the front end of the switch cabinet body 1. A door handle 201 is installed on the surface of the side door 2. The tight fit between the groove 701 and the valve plate 8 (the appropriate spring force is configured according to the fit to ensure the reset of the valve plate 8) helps to reduce the entry of external dust and improve the sealing of the switch cabinet. The operator uses the pull-down block 801 to overcome the resistance of the spring 13 and pull the valve plate 8 into the groove 701 to open the valve plate 8 for inspection of the inside of the switch cabinet. After the inspection is completed, the pull-down block 801 is released, and the valve plate 8 is reset under the action of the spring 13, closing the cabinet door and preventing the entry of external dust. The side-opening door design allows operators to easily observe the inside of the switch cabinet and understand the operating status of the equipment.

[0034] 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 door mechanism for a 6kV switchgear, comprising a switchgear body (1), characterized in that: Ventilation components are provided on both sides of the switch cabinet body (1). Guide rods (9) are installed on both sides of the inner wall of the switch cabinet body (1). The two ends of the guide rods (9) are fixedly installed on the top and bottom of the switch cabinet body (1). A buffer block (10) is installed on the top of the guide rods (9). A spring (13) is sleeved on the lower end of the surface of the guide rods (9). A cylinder (12) is provided above the spring (13). The inner wall of the cylinder (12) is slidably connected to the outer wall of the guide rods (9). A fixing block (11) is installed on one side of the cylinder (12). One end of the fixing block (11) is connected to the side wall of the cylinder (12). The other end of the fixing block (11) is fixedly connected to a door plate (8). Limiting components to prevent the door plate (8) from tilting are provided on both sides of the door plate (8).

2. The door mechanism of a 6kV switchgear according to claim 1, characterized in that: The ventilation assembly includes ventilation slots (4), which are formed on both outer walls of the switch cabinet body (1) and are inclined.

3. The door mechanism of a 6kV switchgear according to claim 2, characterized in that: The top of the switch cabinet body (1) is provided with a through slot, and a heat dissipation component is installed inside the through slot. The heat dissipation component includes a heat dissipation motor (6), a support frame (601) and a fan blade (602). The output shaft of the heat dissipation motor (6) passes through the center of the support frame (601) and is connected to the rotation shaft of the fan blade (602). The side wall of the support frame (601) is fixedly connected to the inner wall of the through slot.

4. The door mechanism of a 6kV switchgear according to claim 3, characterized in that: A dustproof plate (5) is installed on the top surface of the through groove, and the side wall of the dustproof plate (5) is embedded in the inner wall of the through groove.

5. The door mechanism of a 6kV switchgear according to claim 4, characterized in that: The limiting component includes a limiting groove (14) and a limiting block (15). The limiting groove (14) is opened on both sides of the inner wall of the switch cabinet body (1). One end of the limiting block (15) is installed at both ends of the door plate (8), and the other end of the limiting block (15) is slidably disposed inside the limiting groove (14).

6. The door mechanism of a 6kV switchgear according to claim 5, characterized in that: A baffle (7) is provided below the door panel (8). Threaded grooves are provided on both sides of the bottom end of the baffle (7) and the side wall of the switch cabinet body (1). Bolts (3) are threaded on the inner wall of the threaded groove.

7. The door mechanism of a 6kV switchgear according to claim 6, characterized in that: The top of the baffle (7) is provided with a retaining groove (701), and the door plate (8) can be inserted into the retaining groove (701) when it moves up and down along the guide rod.

8. The door mechanism of a 6kV switchgear according to claim 7, characterized in that: The depth of the retaining groove (701) is greater than the height of the door panel (8).

9. The door mechanism of a 6kV switchgear according to claim 7, characterized in that: A pull-down block (801) is provided on the upper surface of the valve panel (8).

10. The door mechanism of a 6kV switchgear according to claim 1, characterized in that: The front end of the switch cabinet body (1) is provided with a side door (2), and a door handle (201) is installed on the surface of the side door (2).

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