Opening and closing operation mechanism of gas insulated switchgear

Abstract

The utility model belongs to the technical field of opening and closing of gas-insulated switchgears, and particularly relates to an opening and closing operation mechanism of a gas-insulated switchgear, which comprises a support plate. A first mounting hole is formed in the end face of the supporting plate, a first supporting shaft is mounted on the supporting plate through the first mounting hole, a connecting block is mounted on the outer wall of the first supporting shaft, a second mounting hole is formed in the connecting block, and a fixing column is mounted on the connecting block through the second mounting hole. A torsion spring sleeves the outer wall of the fixed column and is located above the connecting block, a movable groove is formed in the connecting block, and a closing pawl is rotatably connected to the outer wall of the fixed column and is located in the movable groove; through the structural design of the closing pawl, the arc-shaped groove and the like, the problems that the closing pawl of the opening and closing operation mechanism of the existing gas insulated switchgear is easy to slide after being used for a long time and the closing pawl is unreliable in connection after being closed are solved, the closing stability is improved, and the service life of the closing pawl and the whole machine is prolonged at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of opening and closing of an inflatable cabinet, in particular to an opening and closing operating mechanism of an inflatable cabinet. Background Art

[0002] DXG-12 (C) indoor AC high-voltage gas-insulated metal-enclosed switchgear (hereinafter referred to as "gas-insulated switchgear") is a new generation of switchgear. The main switch can use either a permanent magnet mechanism vacuum circuit breaker or a spring mechanism vacuum circuit breaker. The entire cabinet combines air insulation with sulfur hexafluoride gas compartments, which is both compact and expandable, and is suitable for distribution automation.

[0003] The closing latch of the existing opening and closing operating mechanism of the inflatable cabinet is prone to slipping after long-term use. The connection of the closing latch after closing is unreliable and the fixing effect is poor. Therefore, to address the above problems, an opening and closing operating mechanism of the inflatable cabinet is proposed. Utility Model Content

[0004] In order to make up for the shortcomings of the existing technology, the closing latch of the opening and closing operating mechanism of the existing inflatable cabinet is prone to slipping after long-term use, the closing latch is not firmly connected after closing, and the closing effect is poor. The utility model proposes an opening and closing operating mechanism of the inflatable cabinet.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an opening and closing operating mechanism of an inflatable cabinet, comprising a support plate; a first mounting hole is provided on the end surface of the support plate, a first support shaft is installed on the support plate through the first mounting hole, a connecting block is installed on the outer wall of the first support shaft, a second mounting hole is provided on the connecting block, a fixing column is installed on the connecting block through the second mounting hole, a torsion spring is sleeved on the outer wall of the fixing column and located above the connecting block, a movable groove is provided on the connecting block, a closing latch is rotatably connected on the outer wall of the fixing column and located inside the movable groove, an arc groove is provided on the side wall of the closing latch, and a slider is installed on the side wall of the connecting block.

[0006] Preferably, one end of the torsion spring is connected to the outer wall of the first support shaft, a through hole is provided on the closing latch, and the other end of the torsion spring passes through the through hole and is connected to the closing latch.

[0007] Preferably, the slider is rotatably connected to the rotating shaft through a connecting hole, a sliding groove is provided on the outer wall of the rotating shaft and located corresponding to the slider, the support plate is rotatably connected to the second support shaft through a connecting hole, connecting plates are installed on the outer wall of the second support shaft and located on the upper and lower sides, the corresponding side walls of the two connecting plates are installed with connecting shafts through connecting holes, the corresponding side walls of the two connecting plates are installed with first fixing pins through connecting holes, and a connecting rod is rotatably connected to the outer wall of the first fixing pin.

[0008] Preferably, the support plate is rotatably connected to the mounting shaft through a connecting hole, and movable plates are installed on the outer wall of the mounting shaft and on the upper and lower sides. The corresponding side walls of the two movable plates are installed with second fixing pins through connecting holes, and a limiting rod is installed on the end surface of the support plate, and the other end of the connecting rod is rotatably connected to the outer wall of the second fixing pin through the connecting hole.

[0009] Preferably, the connecting plate is arranged in a T-shaped structure, and the arc-shaped groove and the connecting shaft are adapted to each other.

[0010] Preferably, the rotating shaft is slidably connected to the slider via a sliding groove.

[0011] The utility model is beneficial in that:

[0012] The utility model adopts the structural design of the closing latch and the arc groove. After closing, the closing latch is wrapped on the outer wall of the connecting shaft through the arc groove. The matching surface is greatly increased compared with the point contact of the prior art, the connection is more reliable, and there is no slipping phenomenon in the connection between the closing latch and the connecting shaft; and the closing latch cooperates with the outer wall surface of the connecting shaft through the arc groove, which reduces the wear of the closing latch and the connecting shaft when opening the switch, thereby solving the problem that the closing latch of the opening and closing operating mechanism of the existing inflatable cabinet is prone to slipping after long-term use, and the connection of the closing latch after closing is unreliable, thereby improving the stability of closing, and also extending the service life of the closing latch and the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the partially split structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the connecting block and the movable groove of the utility model;

[0017] Figure 4 This is a schematic diagram of the fixed column and torsion spring structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the closing latch and arc-shaped slot structure of the utility model;

[0019] Figure 6 This is a schematic diagram of the closing position structure of the closing latch and the connecting shaft of the utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the closing latch and the connecting shaft in the opening position of the utility model;

[0021] Figure 8 It is a schematic diagram of the three-dimensional partial structure of the utility model.

[0022] In the figure: 1. Support plate; 2. First mounting hole; 3. First support shaft; 4. Connecting block; 5. Second mounting hole; 6. Fixed column; 7. Torsion spring; 8. Movable groove; 9. Closing latch; 10. Arc groove; 11. Slider; 12. Rotating shaft; 13. Slide groove; 14. Second support shaft; 15. Connecting plate; 16. Connecting shaft; 17. First fixing pin; 18. Connecting rod; 19. Mounting shaft; 20. Movable plate; 21. Second fixing pin; 22. Limiting rod. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The following is combined with Figure 1-8 To further explain this application,

[0025] The embodiment of the present application discloses a switch-on and switch-off operating mechanism for an inflatable cabinet. Figure 1 and Figure 8A switch-on / off operating mechanism for an inflatable cabinet includes a support plate 1; a first mounting hole 2 is formed on the end surface of the support plate 1, a first support shaft 3 is mounted on the support plate 1 through the first mounting hole 2, a connecting block 4 is mounted on the outer wall of the first support shaft 3, a second mounting hole 5 is formed on the connecting block 4, a fixing column 6 is mounted on the connecting block 4 through the second mounting hole 5, a torsion spring 7 is sleeved on the outer wall of the fixing column 6 and located above the connecting block 4, a movable groove 8 is formed on the connecting block 4, and a switch-on / off switch is rotatably connected to the outer wall of the fixing column 6 and located inside the movable groove 8. The latch 9 has an arcuate groove 10 on its side wall, and a slider 11 is installed on the side wall of the connecting block 4. After closing, the closing latch 9 is wrapped around the outer wall of the connecting shaft 16 through the arcuate groove 10. Compared with the point contact of the prior art, the mating surface is greatly increased, the connection is more reliable, and the connection between the closing latch 9 and the connecting shaft 16 will not slip, thereby solving the problem that the closing latch 9 of the opening and closing operating mechanism of the existing inflatable cabinet is prone to slip after long-term use, and the connection of the closing latch 9 after closing is unreliable, thereby improving the stability of closing.

[0026] Among them, the closing latch 9 cooperates with the outer wall surface of the connecting shaft 16 through the arc groove 10, reducing the wear of the closing latch 9 and the connecting shaft 16 when opening the circuit breaker, thereby extending the service life of the closing latch 9 and the entire machine.

[0027] Reference Figure 1-8 , one end of the torsion spring 7 is connected to the outer wall of the first support shaft 3, a through hole is provided on the closing latch 9, the other end of the torsion spring 7 passes through the through hole and is connected to the closing latch 9; the slider 11 is rotatably connected to the rotating shaft 12 through the connecting hole, and a sliding groove 13 is provided on the outer wall of the rotating shaft 12 and corresponding to the slider 11. The support plate 1 is rotatably connected to the second support shaft 14 through the connecting hole, and a connecting plate 15 is installed on the outer wall of the second support shaft 14 and on the upper and lower sides. The corresponding side walls of the two connecting plates 15 are installed with connecting shafts through connecting holes 16. The corresponding side walls of the two connecting plates 15 are installed with first fixing pins 17 through connecting holes, and the outer wall of the first fixing pin 17 is rotatably connected to a connecting rod 18; the support plate 1 is rotatably connected to a mounting shaft 19 through a connecting hole, and a movable plate 20 is installed on the outer wall of the mounting shaft 19 and on the upper and lower sides. The corresponding side walls of the two movable plates 20 are installed with second fixing pins 21 through connecting holes, and a limiting rod 22 is installed on the end surface of the support plate 1. The other end of the connecting rod 18 is rotatably connected to the outer wall of the second fixing pin 21 through the connecting hole;

[0028] Among them, one end of the torsion spring 7 is connected to the outer wall of the first support shaft 3, and a through hole is opened on the closing latch 9. The other end of the torsion spring 7 passes through the through hole and is connected to the closing latch 9, completing the stable installation of the torsion spring 7. The torsion spring 7 accumulates force to realize the automatic opening of the device;

[0029] Reference Figure 1 、2 , 6 and Figure 7 , the connecting plate 15 is a T-shaped structure, the arc groove 10 and the connecting shaft 16 are adapted to each other; the rotating shaft 12 is slidably connected to the slider 11 through the sliding groove 13;

[0030] Among them, the arc groove 10 and the connecting shaft 16 are adapted to each other. After closing, the closing latch 9 is matched with the outer wall of the connecting shaft 16 through the arc groove 10, and the match is larger, and the connection is more firm.

[0031] Working principle: By rotating the mounting shaft 19 clockwise, the mounting shaft 19 rotates the movable plate 20 in the same direction, and the movable plate 20 drives the connecting rod 18 to move backward through the transmission action of the second fixed pin 21. The connecting rod 18 drives the connecting plate 15 to move through the first fixed pin 17. The connecting plate 15 drives the connecting shaft 16 to move. The connecting shaft 16 pushes the closing latch 9 to rotate counterclockwise on the outer wall of the fixed column 6. The connecting shaft 16 moves to the arc groove 10 through the side wall of the closing latch 9. Under the reset action of the torsion spring 7, the closing latch 9 is included on the outer wall of the connecting shaft 16 through the arc groove 10 to achieve closing. The gate has a greatly increased mating surface compared to the point contact of the prior art, and the connection is more reliable. There is no slipping phenomenon in the connection between the closing latch 9 and the connecting shaft 16; and the closing latch 9 cooperates with the outer wall surface and surface of the connecting shaft 16 through the arc groove 10, which reduces the wear of the closing latch 9 and the connecting shaft 16 when opening the gate. By setting the closing latch 9 and the arc groove 10, etc., the problem that the closing latch 9 of the opening and closing operating mechanism of the existing inflatable cabinet is prone to slipping after long-term use and the connection of the closing latch 9 after closing is unreliable is solved, which improves the stability of the closing and extending the service life of the closing latch 9 and the entire machine.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A switch-on / off operating mechanism for an inflatable cabinet, comprising a support plate (1); characterized in that: A first mounting hole (2) is provided on the end surface of the support plate (1), a first support shaft (3) is installed on the support plate (1) through the first mounting hole (2), a connecting block (4) is installed on the outer wall of the first support shaft (3), a second mounting hole (5) is provided on the connecting block (4), a fixing column (6) is installed on the connecting block (4) through the second mounting hole (5), a torsion spring (7) is sleeved on the outer wall of the fixing column (6) and located above the connecting block (4), a movable groove (8) is provided on the connecting block (4), a closing latch (9) is rotatably connected on the outer wall of the fixing column (6) and located inside the movable groove (8), an arc groove (10) is provided on the side wall of the closing latch (9), and a slider (11) is installed on the side wall of the connecting block (4).

2. The opening and closing operating mechanism of the inflatable cabinet according to claim 1 is characterized in that: One end of the torsion spring (7) is connected to the outer wall of the first support shaft (3), a through hole is provided on the closing latch (9), and the other end of the torsion spring (7) passes through the through hole and is connected to the closing latch (9).

3. The opening and closing operating mechanism of the inflatable cabinet according to claim 1 is characterized in that: The slider (11) is rotatably connected to the rotating shaft (12) through a connecting hole, and a sliding groove (13) is provided on the outer wall of the rotating shaft (12) and is located corresponding to the slider (11). The support plate (1) is rotatably connected to the second supporting shaft (14) through the connecting hole, and connecting plates (15) are installed on the outer wall of the second supporting shaft (14) and are located on the upper and lower sides. The corresponding side walls of the two connecting plates (15) are installed with connecting shafts (16) through the connecting holes, and the corresponding side walls of the two connecting plates (15) are installed with first fixing pins (17) through the connecting holes, and the outer wall of the first fixing pin (17) is rotatably connected to a connecting rod (18).

4. The opening and closing operating mechanism of the inflatable cabinet according to claim 3 is characterized in that: The support plate (1) is rotatably connected to the mounting shaft (19) through a connecting hole, and movable plates (20) are installed on the outer wall of the mounting shaft (19) and on the upper and lower sides. The corresponding side walls of the two movable plates (20) are installed with second fixing pins (21) through the connecting holes. A limiting rod (22) is installed on the end surface of the support plate (1), and the other end of the connecting rod (18) is rotatably connected to the outer wall of the second fixing pin (21) through the connecting hole.

5. The opening and closing operating mechanism of the inflatable cabinet according to claim 3 is characterized in that: The connecting plate (15) is arranged in a T-shaped structure, and the arc-shaped groove (10) and the connecting shaft (16) are adapted to each other.

6. The opening and closing operating mechanism of the inflatable cabinet according to claim 3 is characterized in that: The rotating shaft (12) is slidably connected to the slider (11) via a sliding groove (13).

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