CN115681538B - High-tightness electric self-locking gate valve structure - Google Patents

Abstract

The invention discloses a high-tightness electric self-locking gate valve structure, and relates to the technical field of gate valves. This high leakproofness is electronic from locking push-pull valve structure, including the device shell, the side fixedly connected with first support frame of device shell, the track has been seted up to the side surface of first support frame, the track department fixedly connected with locating part that first support frame side surface was seted up, the track department that first support frame side surface was seted up is provided with locking device, through setting up locking device, can throttle the pipeline to reach the interception effect to the material, the setting of locating part can carry out spacingly to locking device, the side fixedly connected with fixed plate of device shell, the surface of fixed plate is provided with stop device, the inner chamber department of fixed plate is provided with pressure relief device, the surface of device shell is provided with the connecting plate, reaches the effect of reinforcing leakproofness and pressure relief.

Description

High-tightness electric self-locking gate valve structure

Technical Field

The invention relates to the technical field of gate valves, in particular to a high-tightness electric self-locking gate valve structure.

Background

The gate valve is also called as a manual knife gate valve. The knife gate valve is a valve with a gate plate and a valve seat being always tightly contacted and sealed, and the principle is that a circular opening with the size of the drift diameter is formed on the gate plate, and the circular opening on the gate plate and the drift diameter are completely separated and matched through the opening and closing of the gate plate. The valve has the advantages that the valve body has no groove in the drift diameter, the medium can not be blocked, the valve has full-flux radial flow characteristic, and the sealing structure can be divided into a soft sealing structure and a hard sealing structure. The penetrating knife gate valve has the characteristics of precise structure, good manufacturability, compact structure and the like, and the sealing valve seat is of a movable structure design and has the functions of wear resistance and automatic compensation, so that the service life is longer. The valve seat and the flashboard are always in close contact with each other in the closing and opening processes, so that the opening and closing force of the valve is stable, and the valve has the characteristics of cutting off media and the like;

in the installation process of the gate valve, strong sealing performance is required to be maintained, so that leakage of liquid in the circulation process is prevented; the installation process of the gate valve on the market is complex and does not have the pressure relief effect, when the valve is suddenly opened, the water flow can cause the pipeline to be suddenly subjected to great pressure, and the water pipe is broken because the gate valve does not have the pressure relief function.

Disclosure of Invention

In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a high leakproofness is electronic from locking push-pull valve structure, includes the device shell, the side surface fixedly connected with first support frame of device shell, the track has been seted up to the side surface of first support frame, the track department fixedly connected with locating part that first support frame side surface was seted up, the track department that first support frame side surface was seted up is provided with locking device, through setting up locking device, can throttle the pipeline to reach the interception effect to the material, the setting of locating part can carry out spacingly to locking device, the side surface fixedly connected with fixed plate of device shell, the surface of fixed plate is provided with stop device, the inner chamber department of fixed plate is provided with pressure release device, the surface of device shell is provided with the connecting plate, circular hole department fixedly connected with honeycomb duct that the connecting plate surface was seted up, during operation, operating personnel make the connecting pipe and the honeycomb duct of device shell surface link up through stop device and connecting device, thereby reach the effect of pipeline intercommunication.

Preferably, the side surface of connecting plate is provided with connecting device, the side surface fixedly connected with connecting pipe of device shell, locking device includes the movable rod, the track department of movable rod swing joint at first support frame side surface seting up, the last fixed surface of movable rod is connected with the second support frame, the one end fixedly connected with motor of movable rod is kept away from to the second support frame, through setting up motor and screw thread post, can make the locking plate move down to reach the electronic auto-lock effect to the pipeline, during operation, operating personnel makes the motor switch in the power and open the switch of motor, and the motor begins to work, makes the screw thread post begin to rotate, and the screw thread post runs through the screw thread cap department that the upper surface of first support frame set up, thereby makes locking device reach ascending effect that descends.

Preferably, the motor lower surface rotates and is connected with the screw thread post, the screw thread post is connected with the output of motor, the lower fixed surface of screw thread post is connected with the locking board, the side fixed surface of locking board is connected with spacing post, the side fixed surface of locking board is connected with first sealing strip, the lower fixed surface of locking board is connected with first shell fragment, through setting up spacing post, can play spacing effect to prevent locking device can not produce the skew at the in-process of closing the pipeline, thereby the in-process first sealing strip of locking can produce the contact with the inner chamber department of device shell and prevent liquid outflow, reached inclosed effect, the setting of first shell fragment has played the protection effect to the device.

Preferably, the limiting device comprises a limiting shell, the limiting shell is fixedly connected to the side surface of the device shell, a second sealing strip is fixedly connected to the inner wall of the limiting shell, the limiting device comprises a limiting base, the limiting base is fixedly connected to the side surface of the device shell, the outer surface of the limiting base is fixedly connected with a second elastic sheet, the outer surface of the limiting base is fixedly connected with a fixed column, the outer surface of the fixed column is fixedly connected with a third elastic sheet, the outer surface of the fixed column is movably connected with a third supporting frame, one end of the third elastic sheet, far away from the fixed column, is fixedly connected with a spring, one end of the third supporting frame, far away from the third elastic sheet, is fixedly connected with a clamping plate, can enable two sections of pipelines to be tightly connected together, the connecting device comprises a connecting base, the connecting base is fixedly connected to the side surface of the connecting plate, the outer surface of the connecting base is fixedly connected with a connecting column, the outer surface of the connecting column is fixedly connected with a third elastic sheet, the outer surface of the connecting column is fixedly connected with a hook plate, the hook plate is fixedly connected with the hook plate, the hook plate is tightly connected with the clamping plate in a clamping plate, and then the outer surface of the hook plate is tightly extruded and connected with the hook plate in the outer surface of the connecting frame in a compression process, and the compression device is tightly extruded in the process, thereby the outer surface of the hook plate can be extruded and connected with the outer surface of the hook plate in the process, the second sealing strip is matched with the connecting column in an extrusion mode.

Preferably, the pressure relief device comprises a pressure relief pipe, pressure relief pipe fixed connection is at the surface of device shell, the inner wall department fixedly connected with solid fixed ring of pressure relief pipe, the draw-in groove has been seted up to gu fixed ring's side surface, gu fixed ring side surface department fixedly connected with first supporting shoe of seting up, the surface fixedly connected with closing plate of first supporting shoe, closing plate and the surface looks adaptation of device shell, through setting up pressure relief device, can be when the valve is opened, the direct impact that liquid in the pipeline can not be cumulated to prevent that the pipeline from being broken by the liquid punching press, the setting of closing plate can play sealed effect, and the closing plate can be in the in-process of hydraulic pressure with the surface of device shell tightly contact together, thereby has played sealed effect.

Preferably, the draw-in groove has been seted up to the side surface of solid fixed ring, the draw-in groove department that gu fixed ring side surface was seted up is provided with the second supporting shoe, the side surface fixedly connected with wave shell fragment of second supporting shoe, the one end fixed connection that the second supporting shoe was kept away from to the wave shell fragment is in the draw-in groove department that gu fixed ring side surface was seted up, the surface fixedly connected with baffle of second supporting shoe.

Preferably, the side fixed surface of decompression pipe is connected with the fourth support frame, the one end fixedly connected with spacing ring of decompression pipe is kept away from to the fourth support frame, the inner chamber department swing joint of spacing ring has the removal post, the one end fixedly connected with extrusion piece of removal post, extrusion piece and fender stream board looks extrusion adaptation, the one end fixedly connected with adaptation board of extrusion piece is kept away from to the removal post, the surface fixedly connected with fourth shell fragment of removal post, the one end fixedly connected with at the spacing ring of removal post is kept away from to the fourth shell fragment, when the valve is opened, liquid can produce impact force to pressure release, at the in-process of punching press, liquid can extrude the adaptation board, and at the in-process of punching press, the removal post can drive extrusion piece extrusion fender stream board, and extrusion back fender stream board can scatter to the pressure release effect has been played.

The invention provides a high-tightness electric self-locking gate valve structure. The beneficial effects are as follows:

1. the high-tightness electric self-locking gate valve structure can throttle a pipeline by arranging the locking device, thereby achieving the interception effect of materials, limiting the locking device by arranging the limiting frame,

during operation, operating personnel makes connecting pipe and honeycomb duct of device shell surface link up through stop device and connecting device to reach the effect of pipeline intercommunication, through setting up motor and screw thread post, can make the locking plate downwardly moving, thereby reach the electronic auto-lock effect to the pipeline, during operation, operating personnel makes the motor switch in the power and open the switch of motor, and the motor begins work, makes the screw thread post begin to rotate, and the screw thread post runs through the screw thread cap department that the upper surface of first support frame set up, thereby makes locking device reach the effect of rising and falling.

2. This electronic self-locking push-pull valve structure of high leakproofness through setting up spacing post, can play spacing effect to prevent that locking device can not produce the skew at the in-process of closing the pipeline, thereby can produce the contact with the inner chamber department of device shell at the in-process of locking and prevent liquid outflow, reached inclosed effect, the setting of first shell fragment has played the protection effect to the device.

3. This electronic self-locking push-pull valve structure of high leakproofness through setting up stop device, can make two sections pipeline zonulae occludens be in the same place, and during operation, operating personnel extrudees connecting device to stop device to at extruded in-process, the spliced pole can produce the extrusion to the chucking board, can with chucking board looks adaptation at extruded in-process, thereby reach the effect of connecting, at extruded in-process, the third support frame can remove at the surface of fixed column, thereby make the chucking board connect tightly at the surface of spliced pole, after connecting, the second sealing strip can with spliced pole looks extrusion adaptation.

4. This high leakproofness is electronic from locking push-pull valve structure, through setting up pressure relief device, can be when the valve is opened, the direct impact that can not build up of the liquid in the pipeline, thereby prevent that the pipeline from being broken by the liquid punching press, the setting of closing plate, can play sealed effect, the closing plate can be in the same place with the surface of device shell tight contact at hydraulic in-process, thereby play sealed effect, when the valve is opened, the liquid can produce impact force to pressure relief device, at the in-process of punching press, the liquid can extrude the adaptation board, at the in-process of punching press, the removal post can drive extrusion piece extrusion baffle, the extrusion is passed back baffle can be dispersed, thereby pressure relief effect has been played.

Drawings

FIG. 1 is a schematic diagram of a high-tightness electric self-locking gate valve;

FIG. 2 is a schematic view of the disassembled structure of the present invention;

FIG. 3 is a schematic view of a locking device according to the present invention;

FIG. 4 is a schematic cross-sectional view of the housing of the device of the present invention;

FIG. 5 is a schematic view of a limiting device according to the present invention;

FIG. 6 is a schematic view of a detailed structure of a limiting device according to the present invention;

FIG. 7 is a schematic view of a connecting device according to the present invention;

FIG. 8 is a schematic diagram of a pressure relief device according to the present invention;

FIG. 9 is a schematic cross-sectional view of a pressure relief device according to the present invention;

fig. 10 is a schematic diagram of a detailed structure of the pressure relief device of the present invention.

In the figure: 1. a device housing; 2. a first support frame; 3. a locking device; 4. a fixing plate; 5. a limiting device; 6. a pressure relief device; 7. a connecting plate; 8. a connecting device; 9. a flow guiding pipe; 10. a limiting frame; 11. a connecting pipe; 31. a moving rod; 32. a second support frame; 33. a motor; 34. a threaded column; 35. a locking plate; 36. a limit column; 37. a first sealing strip; 38. a first elastic sheet; 51. a limit housing; 52. a second sealing strip; 53. a limit base; 54. a second spring plate; 55. fixing the column; 56. a third spring plate; 57. a third support frame; 58. a spring; 59. a clamping plate; 601. a pressure relief tube; 602. a fixing ring; 603. a first support block; 604. a sealing plate; 605. a second support block; 606. a wave-shaped elastic sheet; 607. a flow baffle; 608. a fourth support frame; 609. a limiting ring; 610. a moving column; 611. extruding a block; 612. an adapter plate; 613. a fourth spring plate; 81. the base is connected; 82. a connecting column; 83. a third sealing strip; 84. a hook plate.

Detailed Description

The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

As shown in fig. 1 to 10, the present invention provides a technical solution: the utility model provides a high leakproofness electronic self-locking push-pull valve structure, includes device shell 1, the side surface fixedly connected with first support frame 2 of device shell 1, the track has been seted up to the side surface of first support frame 2, the track department fixedly connected with spacer 10 that the side surface was seted up of first support frame 2, the track department that the side surface was seted up of first support frame 2 is provided with locking device 3, through setting up locking device 3, can throttle the pipeline, thereby reach the interception effect to the material, the setting up of spacer 10 can carry out the spacing to locking device 3, the side surface fixedly connected with fixed plate 4 of device shell 1, the surface of fixed plate 4 is provided with stop device 5, the inner chamber department of fixed plate 4 is provided with pressure relief device 6, the surface of device shell 1 is provided with connecting plate 7, the circular hole has been seted up to the surface of connecting plate 7, the circular hole department fixedly connected with honeycomb duct 9 that the surface was seted up to connecting plate 7, during operation, operating personnel make the connecting pipe 11 and honeycomb duct 9 of device shell 1 surface link together through setting up locking device 3, thereby reach the interception effect to the material, the side surface of device 31 is provided with a connecting rod 31 to the side surface of side surface 31 of connecting rod 31, the side surface of connecting rod 31 is provided with the second support frame 31, the side surface of movable support frame 31 is connected to the side surface of movable support frame 31, the side 31 is moved to the fixed connection device is reached to the side surface of the fixed connection device is moved to the side 31, the side of the fixed rod is connected with 31, the side 31 is moved to the side 31 is connected to the side 31, the side of the side 31 is connected to the side 31 to be connected to the side 31, when the electric power limiting device is in operation, an operator enables the motor 33 to be connected with a power supply and opens a switch of the motor 33, the motor 33 starts to operate, the threaded column 34 starts to rotate, the threaded column 34 penetrates through a threaded cap arranged on the upper surface of the first supporting frame 2, so that the locking device 3 achieves the ascending and descending effects, the threaded column 34 is rotationally connected to the lower surface of the motor 33, the threaded column 34 is connected with the output end of the motor 33, the locking plate 35 is fixedly connected to the lower surface of the threaded column 34, the limiting column 36 is fixedly connected to the side surface of the locking plate 35, the first sealing strip 37 is fixedly connected to the side surface of the locking plate 35, the first elastic strip 38 is fixedly connected to the lower surface of the locking plate 35, through the limiting column 36, the effect of limiting can be achieved, the locking device 3 is prevented from being offset in the process of closing a pipeline, the first sealing strip 37 can be contacted with the inner cavity of the device shell 1, the sealing effect is achieved, the protection effect of the device is achieved, the limiting device 5 comprises the shell 51, the limiting device 51 is fixedly connected to the base seat 53, the second elastic strip 53 is fixedly connected to the side surface of the shell 51, the third elastic strip 53 is fixedly connected to the base 53, the third elastic strip is fixedly connected to the outer surface of the base 53, the base 53 is fixedly connected to the second elastic strip 53, the base 53 is fixedly connected to the outer surface of the base 53, and the base 53 is fixedly connected to the second surface of the base 53, and the base 53 is fixedly connected to the base 53, one end of the third elastic sheet 56 far away from the fixed column 55 is fixedly connected to the side surface of the third supporting frame 57, the fixed column 55 is fixedly connected with a spring 58 with one end of the third supporting frame 57, one end of the third supporting frame 57 far away from the third elastic sheet 56 is fixedly connected with a clamping plate 59, two sections of pipelines can be tightly connected together by arranging a limiting device 5, the connecting device 8 comprises a connecting base 81, the connecting base 81 is fixedly connected to the side surface of the connecting plate 7, the outer surface of the connecting base 81 is fixedly connected with a connecting column 82, the outer surface of the connecting column 82 is fixedly connected with a third sealing strip 83, the outer surface of the connecting column 82 is fixedly connected with a hook plate 84, the hook plate 84 is matched with the outer surface of the clamping plate 59, and when in operation, an operator extrudes the connecting device 8 towards the limiting device 5, so that in the extrusion process, the connecting column 82 can extrude the clamping plate 59, the hook plate 84 can be matched with the clamping plate 59 in the extruding process, thereby achieving the connecting effect, in the extruding process, the third supporting frame 57 can move on the outer surface of the fixing column 55, thereby tightly connecting the clamping plate 59 on the outer surface of the connecting column 82, after the connection is finished, the second sealing strip 52 can be matched with the connecting column 82 in an extruding way, the pressure relief device 6 comprises a pressure relief pipe 601, the pressure relief pipe 601 is fixedly connected on the outer surface of the device shell 1, a fixing ring 602 is fixedly connected on the inner wall of the pressure relief pipe 601, a clamping groove is formed on the side surface of the fixing ring 602, a first supporting block 603 is fixedly connected on the clamping groove formed on the side surface of the fixing ring 602, a sealing plate 604 is fixedly connected on the outer surface of the first supporting block 603, the sealing plate 604 is matched with the outer surface of the device shell 1, through setting up pressure relief device 6, can be when the valve is opened, the direct impact that can not build up of liquid in the pipeline to prevent that the pipeline from being broken by the liquid punching press, the setting of closing plate 604 can play sealed effect, and closing plate 604 can be in the contact that the surface of device shell 1 is tight together, thereby play sealed effect, the draw-in groove has been seted up to the side surface of solid fixed ring 602, the draw-in groove department that solid fixed ring 602 side surface offered is provided with second supporting shoe 605, the side surface fixedly connected with wave shell fragment 606 of second supporting shoe 605, the one end fixedly connected with of wave shell fragment 606 keep away from second supporting shoe 605 is in the draw-in groove department that gu fixed ring 602 side surface offered, the surface fixedly connected with of second supporting shoe 605 keeps off the flow board 60, the side surface fixedly connected with fourth support frame 608 of pressure relief pipe 601, the one end fixedly connected with spacing ring 609 is kept away from to fourth support frame 608, the inner chamber department swing joint of spacing ring 609 has the spliced pole 610, the one end fixedly connected with extrusion piece 607 of post 610 is provided with extrusion piece 611, and extrusion piece 611 is kept away from in the extrusion piece 611, and the extrusion piece 610 is kept away from in the extrusion piece 610, and the extrusion piece is kept away from the extrusion piece 611, and the extrusion piece is kept away from the extrusion piece 610 is in the extrusion piece 610, and the extrusion piece is kept away from the extrusion piece 610 is in the extrusion piece is located in the extrusion piece 610.

When in use, the pipeline can be throttled by arranging the locking device 3 so as to achieve the interception effect of materials, the locking device 3 can be limited by arranging the limiting frame 10, during operation, an operator can connect the connecting pipe 11 on the outer surface of the device shell 1 with the flow guide pipe 9 through the limiting device 5 and the connecting device 8 so as to achieve the pipeline communication effect, the locking plate 35 can move downwards by arranging the motor 33 and the threaded column 34, thereby achieving the electric self-locking effect of the pipeline, during operation, the operator can enable the motor 33 to be connected with a power supply and open a switch of the motor 33, the motor 33 starts to work so as to enable the threaded column 34 to start rotating, the threaded column 34 penetrates through a threaded cap arranged on the upper surface of the first support frame 2 so as to enable the locking device 3 to achieve the ascending and descending effects, and the limiting effect can be achieved by arranging the limiting column 36, thus preventing the locking device 3 from shifting in the process of closing the pipeline, the first sealing strip 37 can be contacted with the inner cavity of the device shell 1 in the locking process to prevent liquid from flowing out, the sealing effect is achieved, the first elastic sheet 38 is arranged to play a role in protecting the device, two sections of pipelines can be tightly connected together by arranging the limiting device 5, an operator presses the connecting device 8 towards the limiting device 5 in operation, the connecting column 82 can squeeze the clamping plate 59 in the squeezing process, the hook plate 84 can adapt to the clamping plate 59 in the squeezing process, the connecting effect is achieved, the third supporting frame 57 can move on the outer surface of the fixing column 55 in the squeezing process, the clamping plate 59 is tightly connected on the outer surface of the connecting column 82, the second sealing strip 52 can be matched with the connecting column 82 in a squeezing mode after the connecting is finished, through setting up pressure relief device 6, can be when the valve is opened, the direct impact that can not be accumulated by the liquid in the pipeline to prevent that the pipeline from being broken by the liquid punching press, the setting of closing plate 604 can play sealed effect, closing plate 604 can be in the same place with the surface of device shell 1 tightly in the in-process of hydraulic pressure, thereby play sealed effect, when the valve is opened, the liquid can produce impact force to pressure relief device 6, at the in-process of punching press, the liquid can extrude adapter plate 612, at the in-process of punching press, remove post 610 can drive extrusion piece 611 and extrude baffle 607, extrusion back baffle 607 can scatter, thereby the pressure release effect has been played.

It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims (5)

1. The utility model provides a high leakproofness is electronic from locking push-pull valve structure, includes device shell (1), its characterized in that: the device comprises a device shell (1), wherein a first support frame (2) is fixedly connected to the side surface of the device shell (1), a track is formed in the side surface of the first support frame (2), a limit frame (10) is fixedly connected to the track formed in the side surface of the first support frame (2), a locking device (3) is arranged at the track formed in the side surface of the first support frame (2), a fixing plate (4) is fixedly connected to the side surface of the device shell (1), a limit device (5) is arranged on the outer surface of the fixing plate (4), a pressure relief device (6) is arranged at the inner cavity of the fixing plate (4), a connecting plate (7) is arranged on the outer surface of the device shell (1), and a circular hole is formed in the outer surface of the connecting plate (7), and a flow guide pipe (9) is fixedly connected to the circular hole formed in the outer surface of the connecting plate (7);

the device comprises a connecting plate (7), wherein a connecting device (8) is arranged on the side surface of the connecting plate, a connecting pipe (11) is fixedly connected with the side surface of a device shell (1), the locking device (3) comprises a moving rod (31), the moving rod (31) is movably connected to a track arranged on the side surface of a first support frame (2), a second support frame (32) is fixedly connected to the upper surface of the moving rod (31), and a motor (33) is fixedly connected to one end, far away from the moving rod (31), of the second support frame (32);

the pressure relief device (6) comprises a pressure relief pipe (601), the pressure relief pipe (601) is fixedly connected to the outer surface of the device shell (1), a fixing ring (602) is fixedly connected to the inner wall of the pressure relief pipe (601), a clamping groove is formed in the side surface of the fixing ring (602), a first supporting block (603) is fixedly connected to the clamping groove formed in the side surface of the fixing ring (602), a sealing plate (604) is fixedly connected to the outer surface of the first supporting block (603), and the sealing plate (604) is matched with the outer surface of the device shell (1);

the clamping groove is formed in the side surface of the fixed ring (602), a second supporting block (605) is arranged at the clamping groove formed in the side surface of the fixed ring (602), a wavy elastic sheet (606) is fixedly connected to the side surface of the second supporting block (605), one end, far away from the second supporting block (605), of the wavy elastic sheet (606) is fixedly connected to the clamping groove formed in the side surface of the fixed ring (602), and a flow blocking plate (607) is fixedly connected to the outer surface of the second supporting block (605);

side surface fixedly connected with fourth support frame (608) of pressure release pipe (601), the one end fixedly connected with spacing ring (609) of pressure release pipe (601) are kept away from to fourth support frame (608), the inner chamber department swing joint of spacing ring (609) has movable post (610), the one end fixedly connected with extrusion piece (611) of movable post (610), extrusion piece (611) and fender flow plate (607) looks extrusion adaptation, the one end fixedly connected with adaptation board (612) of extrusion piece (611) are kept away from to movable post (610), the surface fixedly connected with fourth shell fragment (613) of movable post (610), the one end fixedly connected with at spacing ring (609) is kept away from to fourth shell fragment (613).

2. The high-tightness electric self-locking gate valve structure according to claim 1, wherein: the utility model discloses a motor, including motor (33), screw thread post (34) are connected with the output of motor (33), the lower surface fixedly connected with locking plate (35) of screw thread post (34), the side surface fixedly connected with spacing post (36) of locking plate (35), the side surface fixedly connected with first sealing strip (37) of locking plate (35), the lower surface fixedly connected with first shell fragment (38) of locking plate (35).

3. The high-tightness electric self-locking gate valve structure according to claim 1, wherein: the limiting device (5) comprises a limiting shell (51), the limiting shell (51) is fixedly connected to the side surface of the device shell (1), a second sealing strip (52) is fixedly connected to the inner wall of the limiting shell (51), the limiting device (5) comprises a limiting base (53), and the limiting base (53) is fixedly connected to the side surface of the device shell (1).

4. A high-tightness electric self-locking gate valve structure according to claim 3, wherein: the utility model discloses a spacing base, including spacing base (53) and fixed support frame (57), surface fixedly connected with second shell fragment (54) of spacing base (53), surface fixedly connected with fixed column (55) of spacing base (53), surface fixedly connected with third shell fragment (56) of fixed column (55), surface swing joint of fixed column (55) has third support frame (57), the one end fixedly connected with of fixed column (55) is kept away from at the side surface of third support frame (57), one end fixedly connected with spring (58) of fixed column (55) and third support frame (57), one end fixedly connected with chucking board (59) of third shell fragment (56) are kept away from to third support frame (57).

5. The high-tightness electric self-locking gate valve structure according to claim 1, wherein: connecting device (8) are including connecting base (81), the lateral surface of connecting base (81) fixed connection at connecting plate (7), the surface fixedly connected with spliced pole (82) of connecting base (81), the surface fixedly connected with third sealing strip (83) of spliced pole (82), the surface fixedly connected with hook plate (84) of spliced pole (82), the surface looks adaptation of hook plate (84) and chucking board (59).