Full-automatic rapid gate valve

Abstract

The invention discloses a full-automatic quick gate valve, which relates to the field of valve bodies and comprises a valve seat mounted on a pipeline, a valve plate slidably arranged in a gate groove of the valve seat, an air cylinder for driving the valve plate to vertically move and a mounting frame fixedly connected to the valve seat, the air cylinder is fixedly connected to the mounting frame, and a flow channel is arranged in the middle of the valve seat. A mounting groove is formed in the inner circumferential wall of the flow channel, the door groove is formed in the groove bottom circumferential wall of the mounting groove, the mounting groove is a rectangular-ambulatory-plane groove, and two first sealing devices are arranged in the mounting groove and symmetrically arranged on the two sides of the valve plate; the first sealing device comprises sealing rubber used for abutting against the valve plate and an annular mounting seat used for mounting the sealing rubber, and a thrust device capable of pushing the mounting seat in the direction close to the valve plate is arranged on the valve seat. The valve plate has the effects that abrasion of the valve plate to the sealing rubber is reduced, and the service life of the sealing rubber is prolonged.

Description

Technical Field

[0001] The invention relates to the field of valve bodies, in particular to a full-automatic fast gate valve. Background Art

[0002] The gate valve is a switch valve widely used in many industrial fields. Its flow path shape and structural design make it perform well in intercepting, regulating and cutting off various media. The gate valve usually includes a valve seat, a valve plate sliding in the valve seat gate groove, and a cylinder that drives the valve plate to rise and open or descend and close. When the gate valve is in a closed state, the valve plate sealing surface fits with the sealing rubber set in the gate groove, thereby forming a conduction and shutoff for the medium. Since the gate sealing surface and the valve seat sealing surface are highly smooth, flat and consistent, and are processed into a very fitting and tight sealing rubber, the gate valve has the advantages of small fluid resistance, no erosion of the sealing surface when fully open, and can be used in the case of two-way flow of the medium.

[0003] When the gate valve is in the closed state, in order to isolate the flowing medium, the annular sealing rubber is often tightly squeezed against the valve plate to achieve a sealing effect. However, during the opening of the gate valve, the piston rod of the cylinder drives the valve plate to move up. During this process, the valve plate and the sealing rubber will produce greater friction, thereby increasing the wear of the sealing rubber and reducing the service life of the sealing rubber. Summary of the invention

[0004] In order to reduce the wear of the valve plate on the sealing rubber and increase the service life of the sealing rubber, the present application provides a fully automatic fast gate valve.

[0005] The fully automatic fast gate valve provided in this application adopts the following technical solution:

[0006] A fully automatic fast gate valve comprises a valve seat installed on a pipeline, a valve plate slidably arranged in a gate groove of the valve seat, a cylinder driving the valve plate to move vertically, and a mounting frame fixedly connected to the valve seat, the cylinder being fixedly connected to the mounting frame, a flow channel being arranged in the middle of the valve seat, a mounting groove being arranged on the inner peripheral wall of the flow channel, a gate groove being arranged on the peripheral wall of the groove bottom of the mounting groove, the mounting groove being a U-shaped groove, two groups of first sealing devices being arranged in the mounting groove, the two groups of first sealing devices being symmetrically arranged on both sides of the valve plate, the first sealing device comprising a sealing rubber for contacting the valve plate and an annular mounting seat for mounting the sealing rubber, and a thrust device for pushing the mounting seat toward the valve plate is arranged on the valve seat.

[0007] By adopting the above technical solution, when the valve plate of the gate valve is completely closed, the thrust device can push the mounting seat installed with the sealing rubber towards the valve plate, so that the sealing rubber can be tightly pressed against the valve plate to form a seal. During the process of opening or closing the valve plate, the thrust device releases the thrust on the mounting seat, thereby reducing the squeezing force of the sealing rubber on the valve plate, thereby reducing the wear of the valve plate on the sealing rubber during the process of opening or closing, and improving the service life of the sealing rubber.

[0008] Preferably, the thrust device is provided with two groups in the installation groove, and the two groups of the thrust devices are symmetrically arranged on both sides of the installation groove. The thrust device includes two groups of thrust mechanisms and push rods for pushing the thrust mechanisms, and the two groups of the thrust mechanisms are symmetrically arranged on both sides of the valve plate. A first slide groove is provided on the bottom wall of the door groove, and the push rod is slidably arranged in the first slide groove, and a horizontal second slide groove is provided on the side wall of the first slide groove. A vertical third slide groove is provided in the valve seat, and the third slide groove is connected with the second slide groove. A connecting hole connected with the installation groove is provided on the side wall of the third slide groove. The thrust mechanism includes a horizontal connecting rod slidably arranged in the second slide groove, a first inclined surface is provided at the bottom of the push rod, and a second inclined surface that can conflict with the first inclined surface is provided on one end of the horizontal connecting rod close to the push rod. A vertical connecting rod is provided, and a third inclined surface is provided at one end of the horizontal connecting rod away from the push rod, and the third inclined surface is arranged upwardly, and a fourth inclined surface which can conflict with the third inclined surface is arranged on the vertical connecting rod, and a first triangular block is fixedly connected to the vertical connecting rod, and the cross-section of the first triangular block is a right triangle, and the inclined surface of the first triangular block is arranged obliquely upward, and a second triangular block is fixedly connected to the mounting seat, and the first triangular block and the second triangular block are both located in the connecting hole, and the inclined surface of the second triangular block can conflict with the inclined surface of the first triangular block, and a guide groove is provided on the side wall of the mounting groove, and the axis of the guide groove is perpendicular to the panel of the valve plate, and a guide rod is slidably arranged in the guide groove, and the guide rod is fixedly connected to the mounting seat, and a reset mechanism for pushing the vertical connecting rod downward is arranged between the vertical connecting rod and the valve seat.

[0009] By adopting the above technical solution, when the valve plate is completely closed, the valve plate can press the push rod downward, and the push rod pushes the vertical connecting rod upward through the transverse connecting rod. Under the interference of the inclined surfaces of the first triangular block and the second triangular block and the guiding action of the guide rod, the mounting seat can drive the sealing rubber to move toward the direction close to the valve plate, so that the sealing rubber can be tightly pressed against the valve plate. When the valve plate is opened and closed, the valve plate releases the pressure on the push rod, so that the rubber seal is released from the tight state with the valve plate, reducing the wear of the sealing rubber on the valve plate during the opening or closing process.

[0010] Preferably, two vertical holes are provided on the top surface of the valve plate, and the two vertical holes correspond one-to-one to the push rods. The valve plate includes a vertical sliding rod slidably arranged in the vertical holes, and a blocking member for preventing the vertical sliding rod from detaching from the valve plate is arranged between the vertical sliding rod and the valve plate. A transverse rod is arranged between the two vertical sliding rods, and the piston rod of the cylinder passes through the mounting frame and is fixedly connected to the transverse rod, and the top end of the push rod can be inserted into the vertical hole.

[0011] By adopting the above technical solution, when the piston rod of the cylinder contracts, the cylinder drives the transverse rod to move upward, and the transverse rod drives the vertical slide rod to slide upward. Since the top of the push rod can be inserted into the vertical hole, the reset mechanism can push the vertical connecting rod to slide downward, and the vertical connecting rod pushes the push rod upward through the transverse connecting rod, so that the first triangular block can be separated from the second triangular block, and the tight contact state of the sealing rubber to the valve plate is released. At this time, the door body is still in a fully closed position under the action of gravity and has not moved. As the vertical slide rod slides upward, under the blocking action of the blocking member, the vertical slide rod drives the valve plate to move upward and gradually open. Before the valve plate moves upward, the sealing rubber is already in a non-tight contact state. When the piston rod is extended, the valve plate falls. Under the action of gravity, the bottom end surface of the vertical slide rod is still above the bottom surface of the valve plate. When the bottom surface of the valve plate collides with the bottom side wall of the gate groove, as the cylinder piston rod continues to extend, the cylinder piston rod can push the vertical slide rod downward through the transverse rod, so that the vertical slide rod pushes the push rod downward, and then the valve plate falls to the closed position. The sealing rubber is tightly against the valve plate, reducing the wear of the sealing rubber on the valve plate during the opening or closing process.

[0012] Preferably, a blocking groove is provided on the inner wall of the vertical hole, the blocking member is fixedly connected to the vertical sliding rod, and the blocking member is vertically slidably disposed in the blocking groove.

[0013] By adopting the above technical solution, the blocking member is vertically slidably arranged in the blocking groove, thereby preventing the vertical sliding rod from separating from the valve plate.

[0014] Preferably, a strip groove is provided on the inner wall of the first sliding groove, a protrusion is fixedly connected to the push rod, and the protrusion is vertically slidably arranged in the strip groove.

[0015] By adopting the above technical solution, the protrusion is vertically slidably arranged in the strip groove, preventing the push rod from escaping from the first sliding groove.

[0016] Preferably, an annular groove is provided on the inner wall of the guide groove, a retaining ring is fixedly connected to the guide rod, and a thrust spring for pushing the retaining ring away from the valve plate is provided in the annular groove.

[0017] By adopting the above technical solution, when the thrust mechanism releases the thrust on the mounting seat, the retaining ring can be pushed away from the valve plate under the elastic force of the thrust spring, so that the sealing rubber is separated from the valve plate, reducing the friction between the sealing rubber and the valve plate during the opening and closing process of the valve plate.

[0018] Preferably, a limiting slide groove is opened on the side wall of the third slide groove, and the reset mechanism includes a limiting block fixedly connected to the vertical connecting rod, and a reset spring is arranged in the limiting slide groove, one end of the reset spring abuts against the top surface of the limiting block, and the other end of the reset spring abuts against the top wall of the limiting slide groove.

[0019] By adopting the above technical solution, one end of the return spring abuts against the top surface of the limit block, and the other end of the return spring abuts against the top wall of the limit slide groove, so that after the vertical slide rod moves up, the vertical connecting rod can slide downward, so that the first triangular block can be separated from the second triangular block.

[0020] Preferably, a second sealing device for preventing fluid from flowing into the mounting groove is provided between the valve plate and the side wall of the mounting groove, and two groups of the second sealing devices are provided, and the two groups of the second sealing devices are provided on both sides of the valve plate, and the second sealing device includes a first round-shaped plate fixedly connected to the inner wall of the mounting groove, the inner side wall of the first round-shaped plate is flush with the inner wall of the flow, a second round-shaped plate is arranged outside the first round-shaped plate, and the second round-shaped plate is fixedly connected to the first round-shaped plate, and the mounting seat is located on the side of the second round-shaped plate away from the valve plate, and the second round-shaped plate is provided with a round-shaped rubber ring for contacting with the mounting seat.

[0021] By adopting the above technical solution, when the sealing rubber is pressed against the valve plate, the mounting seat is pressed against the circular rubber ring, thereby forming a sealing chain of the first circular plate, the second circular plate, the circular rubber ring, the mounting seat and the sealing rubber between the mounting groove and the valve plate, thereby reducing the possibility of fluid leakage from the structure in the mounting groove after the valve plate is closed.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. When the valve plate of the gate valve is closed, the thrust device can push the mounting seat with the sealing rubber towards the valve plate, so that the sealing rubber can be pressed against the valve plate to form a seal. During the opening or closing of the valve plate, the thrust device releases the thrust on the mounting seat, thereby reducing the squeezing force of the sealing rubber on the valve plate, thereby reducing the wear of the sealing rubber on the valve plate during the opening or closing process, and prolonging the service life of the sealing rubber;

[0024] 2. When the piston rod of the cylinder contracts, the cylinder drives the transverse rod to move upward, and the transverse rod drives the vertical slide rod to slide upward. Since the top of the push rod can be inserted into the vertical hole, the reset mechanism can push the vertical connecting rod to slide downward. The vertical connecting rod pushes the push rod upward through the transverse connecting rod, so that the first triangular block can be separated from the second triangular block, and the tight contact of the sealing rubber to the valve plate is released. At this time, the door body is still in a fully closed position under the action of gravity and has not moved. As the vertical slide rod slides upward, under the blocking action of the blocking member, the vertical slide rod drives the valve plate to move upward and gradually open. Before the valve plate moves upward, the sealing rubber is already in a non-tight contact state. When the piston rod of the cylinder extends, the valve plate falls and gradually closes. Under the action of gravity, the bottom end surface of the vertical slide rod is still above the bottom surface of the valve plate. When the bottom surface of the valve plate contacts the bottom side wall of the gate groove, as the piston rod of the cylinder continues to extend, the piston rod of the cylinder can push the vertical slide rod downward through the transverse rod, so that the vertical slide rod pushes the push rod downward, and then the valve plate falls to the closed position, and the sealing rubber is tightly against the valve plate, which reduces the wear of the sealing rubber on the valve plate during the opening or closing process.

[0025] 3. When the sealing rubber is pressed against the valve plate, the mounting seat is pressed against the circular rubber ring, thereby forming a sealing chain of the first circular plate, the second circular plate, the circular rubber ring, the mounting seat and the sealing rubber between the mounting groove and the valve plate, thereby reducing the possibility of fluid leakage from the structure in the mounting groove after the valve plate is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the gate valve in the embodiment of the present application.

[0027] Figure 2 It is a vertical cross-sectional view of the valve seat in the embodiment of the present application.

[0028] Figure 3 yes Figure 2 Cross-sectional view at point A.

[0029] Figure 4 yes Figure 2 Cross-sectional view at point B.

[0030] Figure 5 It is the valve in the embodiment of the present application.

[0031] Explanation of the reference numerals: 1. valve seat; 11. door groove; 12. mounting groove; 13. first slide groove; 131. strip groove; 14. second slide groove; 15. third slide groove; 151. limit slide groove; 16. guide groove; 161. annular groove; 162. thrust spring; 17. connecting hole; 2. valve plate; 21. vertical hole; 211. blocking groove; 22. vertical slide rod; 221. blocking member; 23. transverse rod; 3. cylinder; 4. mounting frame; 41. give way groove; 5. flow channel; 6. first sealing device; 61. sealing rubber; 62. mounting seat ; 621, second triangular block; 622, guide rod; 6221, retaining ring; 7, thrust device; 71, thrust mechanism; 711, horizontal connecting rod; 7111, second inclined plane; 7112, third inclined plane; 712, vertical connecting rod; 7121, fourth inclined plane; 713, first triangular block; 72, push rod; 721, protrusion; 722, first inclined plane; 714, reset mechanism; 7141, limit block; 7142, reset spring; 8, second sealing device; 81, first circular plate; 82, second circular plate; 83, circular rubber ring. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The present application embodiment discloses a fully automatic fast gate valve. Figure 1 and Figure 2 As shown, the gate valve includes a valve seat 1 installed on a pipeline, a gate groove 11 is provided on the inner peripheral wall of the valve seat 1, the top of the gate groove 11 is connected to the top surface of the valve seat 1, a valve plate 2 is slidably arranged in the gate groove 11, a mounting frame 4 is fixedly connected to the valve seat 1, and a cylinder 3 is fixedly connected to the mounting frame 4. A clearance groove 41 is provided on the inner side wall of the mounting frame 4, and when the valve plate 2 is lifted from the gate groove 11, both sides of the valve plate 2 are slidably arranged in the clearance groove 41. The side surfaces of the valve plate 2 are respectively fitted with the side walls of the gate groove 11.

[0034] Reference Figure 1 and Figure 2 As shown, a flow channel 5 is provided in the middle of the valve seat 1, and a mounting groove 12 is opened on the inner peripheral wall of the flow channel 5. The mounting groove 12 is an annular groove 161. The door groove 11 is provided on the groove bottom peripheral wall of the mounting groove 12, and the door groove 11 is located in the middle of the cross section of the mounting groove 12.

[0035] Reference Figure 1 and Figure 2 As shown, two groups of first sealing devices 6 are arranged in the installation groove 12, and the two groups of first sealing devices 6 are symmetrically arranged on both sides of the valve plate 2. The first sealing device 6 includes a sealing rubber 61 for contacting the valve plate 2 and an annular mounting seat 62 for mounting the sealing rubber 61. A thrust device 7 is also arranged on the valve seat 1.

[0036] Reference Figure 2 and Figure 3 As shown, two groups of thrust devices 7 are arranged in the installation groove 12, and the two groups of thrust devices 7 are symmetrically arranged on both sides of the installation groove 12. The thrust device 7 includes two groups of thrust mechanisms 71 and push rods 72 for pushing the thrust mechanisms 71. The two groups of thrust mechanisms 71 are symmetrically arranged on both sides of the valve plate 2. A first slide groove 13 is provided on the bottom side wall of the door groove 11, and the push rod 72 is slidably arranged in the first slide groove 13. A strip groove 131 is provided on the inner wall of the first slide groove 13, and a protrusion 721 is fixedly connected to the push rod 72, and the protrusion 721 is vertically slidably arranged in the strip groove 131.

[0037] Reference Figure 2 and Figure 3 As shown, a second horizontal slide groove 14 is provided on the side wall of the first slide groove 13, a third vertical slide groove 15 is provided in the valve seat 1, the third slide groove 15 is connected to the second slide groove 14, and a connecting hole 17 connected to the mounting groove 12 is provided on the side wall of the third slide groove 15.

[0038] Reference Figure 2 and Figure 3 As shown, the thrust mechanism 71 includes a transverse connecting rod 711 slidably arranged in the second sliding groove 14, a first inclined surface 722 is arranged at the bottom of the push rod 72, a second inclined surface 7111 which can interfere with the first inclined surface 722 is opened at one end of the transverse connecting rod 711 close to the push rod 72, a vertical connecting rod 712 is slidably arranged in the third sliding groove 15, a third inclined surface 7112 is arranged at one end of the transverse connecting rod 711 away from the push rod 72, the third inclined surface 7112 is arranged upward, and a fourth inclined surface 7121 which can interfere with the third inclined surface 7112 is arranged on the vertical connecting rod 712.

[0039] Reference Figure 2 and Figure 3 As shown, a reset mechanism 714 for pushing the vertical connecting rod 712 downward is provided between the vertical connecting rod 712 and the valve seat 1. A limiting sliding groove 151 is provided on the side wall of the third sliding groove 15, and the reset mechanism 714 includes a limiting block 7141 fixedly connected to the vertical connecting rod 712, and a reset spring 7142 is provided in the limiting sliding groove 151, one end of the reset spring 7142 abuts against the top surface of the limiting block 7141, and the other end of the reset spring 7142 abuts against the top wall of the limiting sliding groove 151.

[0040] Reference Figure 2 and Figure 3As shown, a first triangular block 713 is fixedly connected to the vertical connecting rod 712, the cross-section of the first triangular block 713 is a right triangle, the inclined surface of the first triangular block 713 is set obliquely upward, and a second triangular block 621 is fixedly connected to the mounting seat 62. The first triangular block 713 and the second triangular block 621 are both located in the connecting hole 17, and the inclined surface of the second triangular block 621 can conflict with the inclined surface of the first triangular block 713.

[0041] Reference Figure 2 and Figure 4 As shown, a guide groove 16 is provided on the side wall of the mounting groove 12, the axis of the guide groove 16 is perpendicular to the panel of the valve plate 2, a guide rod 622 is slidably provided in the guide groove 16, and the guide rod 622 is fixedly connected to the mounting seat 62. An annular groove 161 is provided on the inner wall of the guide groove 16, a retaining ring 6221 is fixedly connected to the guide rod 622, a thrust spring 162 is provided in the annular groove 161, one end of the thrust spring 162 abuts against the side of the retaining ring 6221 close to the mounting seat 62, and the other end of the thrust spring 162 abuts against the side of the annular groove 161 close to the mounting seat 62.

[0042] Reference Figure 2 and Figure 3 As shown, two vertical holes 21 are provided on the top surface of the valve plate 2, and the two vertical holes 21 correspond one to one with the push rod 72. The valve plate 2 includes a vertical slide bar 22 slidably arranged in the vertical hole 21, and a blocking member 221 is arranged between the vertical slide bar 22 and the valve plate 2 for preventing the vertical slide bar 22 from detaching from the valve plate 2. A transverse rod 23 is arranged between the two vertical slide bars 22, and the piston rod of the cylinder 3 passes through the mounting frame 4 and is fixedly connected with the transverse rod 23, and the top end of the push rod 72 can be inserted into the vertical hole 21.

[0043] Reference Figure 2 As shown, a blocking groove 211 is formed on the inner wall of the vertical hole 21 , and a blocking member 221 is fixedly connected to the vertical sliding rod 22 . The blocking member 221 is vertically slidably disposed in the blocking groove 211 .

[0044] Reference Figure 2 and Figure 5 As shown, a second sealing device 8 for preventing the fluid from flowing into the mounting groove 12 is arranged between the valve plate 2 and the side wall of the mounting groove 12. Two groups of the second sealing devices 8 are arranged, and the two groups of second sealing devices 8 are arranged on both sides of the valve plate 2. The second sealing device 8 includes a first round-shaped plate 81 fixedly connected to the inner wall of the mounting groove 12, and the inner side wall of the first round-shaped plate 81 is flush with the inner wall of the flow, and a second round-shaped plate 82 is arranged outside the first round-shaped plate 81, and the second round-shaped plate 82 is fixedly connected to the first round-shaped plate 81. The mounting seat 62 is located on the side of the second round-shaped plate 82 away from the valve plate 2, and the second round-shaped plate 82 is provided with a round-shaped rubber ring 83 for contacting with the mounting seat 62.

[0045] When the piston rod of the cylinder 3 is retracted, the transverse rod 23 moves upward, and the transverse rod 23 drives the vertical slide rod 22 to slide upward. Since the top of the push rod 72 can be inserted into the vertical hole 21, the reset mechanism 714 can push the vertical connecting rod 712 to slide downward, and the vertical connecting rod 712 pushes the push rod 72 upward through the transverse connecting rod 711, so that the first triangular block 713 can be separated from the second triangular block 621, and under the thrust of the thrust spring 162, the mounting seat 62 drives the sealing rubber 61 to separate from the valve plate 2, releasing the tight contact state of the sealing rubber 61 to the valve plate 2. At this time, the door body is still in a fully closed position under the action of gravity and has not moved. As the vertical slide rod 22 slides upward, under the blocking action of the blocking member 221, the vertical slide rod 22 drives the valve plate 2 to move upward and gradually open. Before the valve plate 2 moves upward, the sealing rubber 61 has been separated from the valve plate 2. When the piston rod of the cylinder 3 is extended, the valve plate 2 falls and gradually closes. Under the action of gravity, the bottom end surface of the vertical slide bar 22 is still above the bottom surface of the valve plate 2. When the bottom surface of the valve plate 2 contacts the bottom side wall of the door groove 11, the piston rod of the cylinder 3 continues to extend. The cylinder 3 can push the vertical slide bar 22 downward through the transverse rod 23, so that the vertical slide bar 22 pushes the push rod 72 downward, and then the valve plate 2 falls to the closed position. The sealing rubber 61 is tightly against the valve plate 2, thereby reducing the wear of the sealing rubber 61 on the valve plate 2 during the opening or closing process.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fully automatic fast gate valve, comprising a valve seat (1) mounted on a pipeline, a valve plate (2) slidably arranged in a gate groove (11) of the valve seat (1), a cylinder (3) driving the valve plate (2) to move vertically, and a mounting frame (4) fixedly connected to the valve seat (1), wherein the cylinder (3) is fixedly connected to the mounting frame (4), characterized in that: A flow channel (5) is provided in the middle of the valve seat (1), and a mounting groove (12) is provided on the inner peripheral wall of the flow channel (5). The door groove (11) is provided on the peripheral wall of the groove bottom of the mounting groove (12). The mounting groove (12) is a U-shaped groove. Two groups of first sealing devices (6) are provided in the mounting groove (12), and the two groups of the first sealing devices (6) are symmetrically arranged on both sides of the valve plate (2). The first sealing device (6) includes a sealing rubber (61) for contacting the valve plate (2) and an annular mounting seat (62) for mounting the sealing rubber (61). The valve seat (1) is provided with a thrust device (7) for pushing the mounting seat (62) toward the valve plate (2).

2. A fully automatic fast gate valve according to claim 1, characterized in that: The thrust device (7) is located in the installation groove (12) and is provided with two groups. The two groups of the thrust devices (7) are symmetrically arranged on both sides of the installation groove (12). The thrust device (7) includes two groups of thrust mechanisms (71) and push rods (72) for pushing the thrust mechanisms (71). The two groups of the thrust mechanisms (71) are symmetrically arranged on both sides of the valve plate (2). A first slide groove (13) is provided on the bottom wall of the door groove (11). The push rod (72) is slidably arranged in the first slide groove (13). A transverse second slide groove (14) is provided on the side wall of the first slide groove (13). A A third vertical slide groove (15), the third slide groove (15) is connected to the second slide groove (14), a connecting hole (17) connected to the mounting groove (12) is provided on the side wall of the third slide groove (15), the thrust mechanism (71) comprises a transverse connecting rod (711) slidably arranged in the second slide groove (14), a first inclined surface (722) is provided at the bottom of the push rod (72), a second inclined surface (7111) which can conflict with the first inclined surface (722) is provided at one end of the transverse connecting rod (711) close to the push rod (72), and a vertical connecting rod (7111) is slidably arranged in the third slide groove (15). The vertical connecting rod (712) is provided with a third inclined surface (7112) at one end of the horizontal connecting rod (711) away from the push rod (72), and the third inclined surface (7112) is arranged upward. The vertical connecting rod (712) is provided with a fourth inclined surface (7121) that can conflict with the third inclined surface (7112). The vertical connecting rod (712) is fixedly connected with a first triangular block (713), the cross section of the first triangular block (713) is a right triangle, and the inclined surface of the first triangular block (713) is arranged obliquely upward. The mounting seat (62) is fixedly connected with a second triangular block (621), and the first triangular block (713) The first and second triangular blocks (621) are both located in the connecting hole (17); the inclined surface of the second triangular block (621) can conflict with the inclined surface of the first triangular block (713); a guide groove (16) is provided on the side wall of the mounting groove (12); the axis of the guide groove (16) is perpendicular to the panel of the valve plate (2); a guide rod (622) is slidably arranged in the guide groove (16); the guide rod (622) is fixedly connected to the mounting seat (62); a reset mechanism (714) for pushing the vertical connecting rod (712) downward is provided between the vertical connecting rod (712) and the valve seat (1).

3. A fully automatic fast gate valve according to claim 2, characterized in that: Two vertical holes (21) are provided on the top surface of the valve plate (2), and the two vertical holes (21) correspond to the push rods (72) one by one. The valve plate (2) includes a vertical sliding rod (22) slidably arranged in the vertical hole (21), and a blocking member (221) is arranged between the vertical sliding rod (22) and the valve plate (2) for preventing the vertical sliding rod (22) from detaching from the valve plate (2). A transverse rod (23) is arranged between the two vertical sliding rods (22), and the piston rod of the cylinder (3) passes through the mounting frame (4) and is fixedly connected to the transverse rod (23), and the top end of the push rod (72) can be inserted into the vertical hole (21).

4. A fully automatic fast gate valve according to claim 3, characterized in that: A blocking groove (211) is provided on the inner wall of the vertical hole (21), the blocking member (221) is fixedly connected to the vertical sliding rod (22), and the blocking member (221) is vertically slidably disposed in the blocking groove (211).

5. A fully automatic fast gate valve according to claim 3, characterized in that: A strip groove (131) is provided on the inner wall of the first sliding groove (13), a protrusion (721) is fixedly connected to the push rod (72), and the protrusion (721) is vertically slidably arranged in the strip groove (131).

6. A fully automatic fast gate valve according to claim 2, characterized in that: An annular groove (161) is provided on the inner wall of the guide groove (16), a retaining ring (6221) is fixedly connected to the guide rod (622), and a thrust spring (162) is provided in the annular groove (161) for pushing the retaining ring (6221) away from the valve plate (2).

7. A fully automatic fast gate valve according to claim 2, characterized in that: A limiting slide groove (151) is provided on the side wall of the third slide groove (15), and the reset mechanism (714) includes a limiting block (7141) fixedly connected to the vertical connecting rod (712). A reset spring (7142) is arranged in the limiting slide groove (151), one end of the reset spring (7142) abuts against the top surface of the limiting block (7141), and the other end of the reset spring (7142) abuts against the top wall of the limiting slide groove (151).

8. The fully automatic fast gate valve according to claim 1, characterized in that: A second sealing device (8) for preventing fluid from flowing into the mounting groove (12) is provided between the valve plate (2) and the side wall of the mounting groove (12). The second sealing device (8) is provided with two groups, and the two groups of the second sealing device (8) are provided on both sides of the valve plate (2). The second sealing device (8) includes a first round-shaped plate (81) fixedly connected to the inner wall of the mounting groove (12), the inner side wall of the first round-shaped plate (81) is flush with the inner wall of the fluid flowing to, the first round-shaped plate (81) is provided with a second round-shaped plate (82) on the outer sleeve, and the second round-shaped plate (82) is fixedly connected to the first round-shaped plate (81), and the mounting seat (62) is located on the side of the second round-shaped plate (82) away from the valve plate (2), and the second round-shaped plate (82) is provided with a round-shaped rubber ring (83) for contacting the mounting seat (62).

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