SF6 gas insulation PT cabinet

Abstract

The utility model relates to an SF6 gas insulation PT cabinet. The technical problem to be solved by the utility model is to provide an SF6 gas insulation PT cabinet. The technical scheme adopted by the utility model is as follows: the device comprises an instrument cabinet chamber, a mechanism cabinet chamber and a cable cabinet chamber, the instrument cabinet chamber comprises an instrument cabinet box body, an instrument cabinet door, an air support, a pressing butt joint seat, an unlocking block, an unlocking spring, a locking block, a locking block screw and a reset spring, and the upper part of the instrument cabinet door is connected with the upper part of the instrument cabinet box body in a turnover manner; the back portion of the instrument cabinet door is connected with the instrument cabinet box body through the air support, and a cabinet door pressing block is arranged on the back portion of the instrument cabinet door. The instrument cabinet has the advantages that the cabinet door of the instrument cabinet is supported by the air support in an upward opening manner, so that personnel are not restricted by left and right spaces, the cabinet door is not easy to swing, and the instrument cabinet can be better operated and maintained; the cabinet door of the instrument cabinet is opened and closed by using a pressing type structure, so that the operation of personnel is more convenient, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to an SF6 gas-insulated PT cabinet. Background Art

[0002] An SF6 gas-insulated PT cabinet is a power equipment using sulfur hexafluoride (SF6) gas as an insulating medium. The SF6 gas-insulated PT cabinet is mainly used for the installation and protection of voltage transformers (PTs) in a power system. Generally, an SF6 gas-insulated PT cabinet consists of a switch cabinet room, a pressure relief cabinet room, an instrument cabinet room, a mechanism cabinet room and a cable cabinet room. Generally, the instrument cabinet room is placed at the top of the PT cabinet, and its cabinet door is opened and closed by means of a lock core key and a side hinge. It is found in actual use that the cabinet door of the instrument cabinet room is prone to swing under external force after being opened, and since it is a side-opening door, it greatly affects the operation and maintenance of personnel. In addition, due to its high position, it is extremely inconvenient to open, time-consuming and laborious, so improvements and optimizations are made for this. Content of the Utility Model

[0003] To solve the above problems, the technical problem to be solved by the utility model is to provide an SF6 gas-insulated PT cabinet.

[0004] The technical solution adopted by the SF6 gas-insulated PT cabinet of the utility model: It includes an instrument cabinet room, a mechanism cabinet room and a cable cabinet room. It is characterized in that the instrument cabinet room includes an instrument cabinet box body, an instrument cabinet door, a gas strut, a pressing docking seat, an unlocking block, an unlocking spring, a locking block, a locking block screw and a reset spring. The upper part of the instrument cabinet door is rotatably connected to the upper part of the instrument cabinet box body. The back of the instrument cabinet door and the instrument cabinet box body are connected by the gas strut. A cabinet door pressing block for pressing on the upper surface of the unlocking block is arranged on the back of the instrument cabinet door. A pressing block locking port is arranged at the front end of the cabinet door pressing block. An unlocking block inclined pushing surface is arranged on the side of the unlocking block. The locking block includes a locking block driving part, a locking block installation part and a locking block locking part for inserting into the pressing block locking port. The end of the locking block driving part is provided with a locking block inclined pushing surface for docking with the unlocking block inclined pushing surface. The locking block screw connects the locking block installation part and the lower part of the instrument cabinet box body. The reset spring is sleeved on the locking block screw, one end of which abuts against the locking block installation part and the other end abuts against the lower part of the instrument cabinet box body;

[0005] The pressing docking seat is fixed to the lower part of the instrument cabinet box body, and it includes a docking seat first limiting part. A first placing cavity for the longitudinal movement of the unlocking block and the unlocking spring is arranged in the docking seat first limiting part. A pressing port for the docking of the cabinet door pressing block and the upper surface of the unlocking block is arranged on the upper part of the docking seat first limiting part. An unlocking action port for the docking of the unlocking block and the locking block is arranged on the side of the docking seat first limiting part.

[0006] The width of the unlocking block is greater than the width of the first insertion cavity.

[0007] The pressing docking seat further includes a second limiting portion of the docking seat. A second limiting groove for the lateral movement of the locking block is provided in the second limiting portion of the docking seat.

[0008] A lock head facilitating insertion into the lock opening of the pressing block is provided at the end of the locking portion of the locking block. A beveled guiding surface of the lock opening is provided at the lock opening of the cabinet door pressing block.

[0009] A pressing indicating protrusion is provided on the front surface of the instrument cabinet door. The cabinet door pressing block is provided directly below the pressing indicating protrusion.

[0010] A spring upper positioning protrusion for sleeving the upper end of the unlocking spring is provided at the bottom of the unlocking block. A spring lower positioning groove for positioning the lower end of the unlocking spring is provided in the first insertion cavity.

[0011] The number of the gas struts is two.

[0012] The advantages of the SF6 gas-insulated PT cabinet of the present utility model are as follows: The instrument cabinet door adopts an upward-opening form and is supported by gas struts, so that personnel are not restricted by the left and right spaces and the cabinet door is not prone to swing, and operation and maintenance can be carried out better; The pressing structure is used to open and close the instrument cabinet door. Since the instrument cabinet room is relatively high, on the premise of ensuring stable and reliable locking, the operation of personnel is more convenient, time-saving and labor-saving. Brief Description of the Drawings

[0013] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0014] Figure 1 is the front view of the SF6 gas-insulated PT cabinet of the present utility model;

[0015] Figure 2 is the exploded view of the instrument cabinet room of the present utility model;

[0016] Figure 3 is the structural schematic diagram of the instrument cabinet door of the present utility model;

[0017] Figure 4 is the structural schematic diagram of the unlocking block of the present utility model;

[0018] Figure 5 is the structural schematic diagram of the locking block of the present utility model;

[0019] Figure 6 is the structural schematic diagram of the pressing docking seat of the present utility model;

[0020] Figure 7 is the structural schematic diagram of the instrument cabinet door of the present utility model. Detailed implementation mode

[0021] As Figure 1-7 shown, the SF6 gas-insulated PT cabinet involved in the present utility model includes an instrument cabinet room 1, a mechanism cabinet room 2 and a cable cabinet room 3. The instrument cabinet room 1 includes an instrument cabinet box body 5, an instrument cabinet cabinet door 6, a gas strut 7, a pressing docking seat 8, an unlocking block 9, an unlocking spring 10, a locking block 11, a locking block screw 12 and a reset spring 13. The upper part of the instrument cabinet cabinet door 6 is rotatably connected to the upper part of the instrument cabinet box body 5. The back of the instrument cabinet cabinet door 6 and the instrument cabinet box body 5 are connected by the gas strut 7. A cabinet door pressing block 15 for pressing on the upper surface of the unlocking block 9 is provided on the back of the instrument cabinet cabinet door 6. A pressing block lock port 16 is provided at the front end of the cabinet door pressing block 15. An unlocking block inclined pushing surface 18 is provided on the side of the unlocking block 9. The locking block 11 includes a locking block driving part 20, a locking block installation part 21 and a locking block locking part 22 for inserting into the pressing block lock port 16. A locking block inclined pushing surface 24 opposite to the unlocking block inclined pushing surface 18 is provided at the end of the locking block driving part 20. The locking block screw 12 connects the locking block installation part 21 and the lower part of the instrument cabinet box body 5. The reset spring 13 is sleeved on the locking block screw 12, with one end abutted against the locking block installation part 21 and the other end abutted against the lower part of the instrument cabinet box body 5. The pressing docking seat 8 is fixed to the lower part of the instrument cabinet box body 5 and includes a docking seat first limiting part 25. A first placement cavity 26 for the longitudinal movement of the unlocking block 9 and the unlocking spring 10 is provided in the docking seat first limiting part 25. A pressing port 27 for the docking of the cabinet door pressing block 15 and the upper surface of the unlocking block 9 is provided on the upper part of the docking seat first limiting part 25. An unlocking action port 28 for the docking of the unlocking block 9 and the locking block 11 is provided on the side of the docking seat first limiting part 25. The instrument cabinet cabinet door 6 is supported by the gas strut 7 in the form of an upward-opening door, so that personnel are not restricted by the left and right spaces and the cabinet door is not easily swung, and better operation and maintenance can be carried out. By pressing the cabinet door pressing block 15, the unlocking block 9 moves downward, and the side of the unlocking block 9 pushes the locking block driving part 20 to move horizontally, so that the locking block locking part 22 moves out of the pressing block lock port 16 to realize the unlocking function, and the instrument cabinet cabinet door 6 is opened and closed. Since the instrument cabinet room 1 is relatively high and adopts a pressing structure, it is more convenient and time-saving for personnel to operate.

[0022] The width of the unlocking block 9 is greater than the width of the first placement cavity 26, which can limit the up and down movement when the unlocking block 9 is pressed, making the overall locking and unlocking more stable and reliable.

[0023] The pressing docking seat 8 further includes a second docking seat limiting portion 30. A second docking seat limiting groove 31 for the lateral movement of the locking block 11 is provided in the second docking seat limiting portion 30, effectively preventing the shaking of the locking block 11 during movement.

[0024] A lock head 33 which is convenient to insert into the pressing block lock port 16 is provided at the end of the locking portion 22 of the locking block. A lock port inclined guide surface 34 is provided at the pressing block lock port 16 of the cabinet door pressing block 15, making the locking transition smoother.

[0025] A pressing indication protrusion 36 is provided on the front surface of the instrument cabinet door 6. The cabinet door pressing block 15 is arranged directly below the pressing indication protrusion 36, enabling more accurate operation by personnel and featuring a user-friendly design.

[0026] A spring upper positioning protrusion 37 for sleeving the upper end of the unlocking spring 10 is provided at the bottom of the unlocking block 9. A spring lower positioning groove 38 for positioning the lower end of the unlocking spring 10 is provided in the first insertion cavity 26, making the spring movement more stable.

[0027] The number of the gas struts 7 is two.

[0028] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included within the protection scope of the present invention.

Claims

1. An SF6 gas-insulated PT cabinet, comprising an instrument cabinet room (1), a mechanism cabinet room (2) and a cable cabinet room (3), characterized in that: The instrument cabinet room (1) includes an instrument cabinet box body (5), an instrument cabinet door (6), a gas strut (7), a pressing docking seat (8), an unlocking block (9), an unlocking spring (10), a locking block (11), a locking block screw (12) and a reset spring (13). The upper part of the instrument cabinet door (6) is rotatably connected to the upper part of the instrument cabinet box body (5). The gas strut (7) is connected between the back of the instrument cabinet door (6) and the instrument cabinet box body (5). A cabinet door pressing block (15) for pressing on the upper surface of the unlocking block (9) is provided on the back of the instrument cabinet door (6). A pressing block lock port (16) is provided at the front end of the cabinet door pressing block (15). An unlocking block inclined pushing surface (18) is provided on the side of the unlocking block (9). The locking block (11) includes a locking block driving part (20), a locking block mounting part (21) and a locking block locking part (22) for inserting into the pressing block lock port (16). A locking block inclined pushing surface (24) for docking with the unlocking block inclined pushing surface (18) is provided at the end of the locking block driving part (20). The locking block screw (12) connects the locking block mounting part (21) and the lower part of the instrument cabinet box body (5). The reset spring (13) is sleeved on the locking block screw (12), one end of which abuts against the locking block mounting part (21) and the other end abuts against the lower part of the instrument cabinet box body (5). The pressing docking seat (8) is fixed to the lower part of the instrument cabinet box body (5), and includes a docking seat first limiting part (25). A first placement cavity (26) for the longitudinal movement of the unlocking block (9) and the unlocking spring (10) is provided in the docking seat first limiting part (25). A pressing port (27) for the docking of the cabinet door pressing block (15) and the upper surface of the unlocking block (9) is provided on the upper part of the docking seat first limiting part (25). An unlocking action port (28) for the docking of the unlocking block (9) and the locking block (11) is provided on the side of the docking seat first limiting part (25).

2. The SF6 gas-insulated PT cabinet according to claim 1, wherein: The width of the unlocking block (9) is greater than the width of the first placement cavity (26).

3. The SF6 gas-insulated PT cabinet according to claim 1, wherein: The pressing docking seat (8) further includes a docking seat second limiting part (30). A docking seat second limiting groove (31) for the transverse movement of the locking block (11) is provided in the docking seat second limiting part (30).

4. The SF6 gas-insulated PT cabinet according to claim 1, characterized in that: A lock head (33) facilitating insertion into the pressing block lock port (16) is provided at the end of the locking block locking part (22). A lock port inclined guiding surface (34) is provided at the pressing block lock port (16) of the cabinet door pressing block (15).

5. The SF6 gas-insulated PT cabinet according to claim 1, characterized in that: A pressing indication protrusion (36) is provided on the front of the instrument cabinet door (6). The cabinet door pressing block (15) is provided directly below the pressing indication protrusion (36).

6. The SF6 gas-insulated PT cabinet according to claim 1, characterized in that: A spring upper positioning protrusion (37) for sleeving the upper end of the unlocking spring (10) is provided at the bottom of the unlocking block (9). A spring lower positioning groove (38) for positioning the lower end of the unlocking spring (10) is provided in the first placement cavity (26).

7. The SF6 gas-insulated PT cabinet according to claim 1, characterized in that: The number of the gas struts (7) is 2.

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