A wear-resistant electric flat gate valve

Abstract

The present invention discloses a wear-resistant electric flat gate valve, which belongs to the technical field of electric flat gate valves. It is provided with a valve cover that is convenient for storage and use, and a positioning seat is installed on the upper surface of the valve cover, and a valve lower seat is installed on the lower surface of the valve cover; it includes: a rotating part that rotates on the middle section of the inner surface of the positioning seat, and a bevel gear 1 is installed on the upper surface of the rotating part, and a bevel gear 2 is meshed and connected to the left side of the outer surface of the bevel gear 1. The valve cover and the valve lower seat are provided with docking assembly, and the gate is controlled by a motor, and the gate limiter is nested in a wear-resistant shell and a wear-resistant ring, which improves the stability of the gate assembly and reduces the friction between the gate and the gate valve shell, thereby improving the stability of the gate valve. In combination with the use of corresponding clamps and bolts, the stability of the assembly between the wear-resistant shell and the wear-resistant ring is improved, and the wear resistance of the electric flat gate is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric flat gate valves, in particular to a wear-resistant electric flat gate valve. Background Art

[0002] The electric flat gate valve is a commonly used shut-off valve that can be effectively used in many industries such as petroleum, chemical industry, metallurgy, and construction, and plays a vital role in their pipeline systems. The medium can be cut off or adjusted by the height of the gate. During use, it is inconvenient to control the stability of the gate movement, and it affects the wear resistance of the gate.

[0003] In order to overcome the above-mentioned defects, the prior art (application number CN201721016744.8, Chinese patent application filed on August 15, 2017) wear-resistant flat gate valve, through the cooperation of the moving rod and the torsion spring, the left and right sides of the gate are more closely fitted with the metal shell, clamping the rubber ring, and through the cooperation of the compression spring and the protrusion, the protrusion can move freely in the second slide groove, and through the cooperation of the guide rail and the rivet, the cross bar can move left and right, thereby fixing the connecting rod to form a fixing device. Through the cooperation of the fixing device and the connecting rod, the gate and the metal shell are more closely fitted, the sealing effect is significantly enhanced, and the occurrence of leakage is reduced; there is also the prior art (application number CN201820966296.6, Chinese patent application filed on June 22, 2018) wear-resistant flat gate valve, in which wear-resistant layers are embedded on the two vertical side end faces of the gate to avoid damage to the gate when the gate and the gate valve move relative to each other. Excessive wear, and by installing a wedge block at the flow channel inlet, setting an inclined surface on the lower edge of the gate plate to cooperate with the inclined surface of the wedge block, so that the gate plate is guided by the wedge block and pressed toward the sealing ring installed at the flow channel outlet, thereby obtaining a good sealing effect; and the prior art (application number CN202221756391.6, Chinese patent application application date 2022-07-07) a wear-resistant alloy steel flat gate valve casting for mining, which is aligned with the corresponding first or second port through the connecting port in the installation structure, and then the bolt passes through the connecting port to connect with the corresponding port. The first and second ports can be adjusted and installed according to the connecting pipe, solving the problem of single connection form and eliminating limitations; although the prior art can achieve wear resistance and stable adjustment, during operation, the connection between the gate plate and the gate valve is prone to wear of the gate plate under excessive friction, affecting the stability of the gate valve and its sealing during working use.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original electric flat gate valve. Summary of the Invention

[0005] The purpose of the present invention is to provide a wear-resistant electric flat gate valve to solve the problem raised in the above background technology that during the working process, the connection between the gate plate and the gate valve is prone to wear of the gate plate due to excessive friction, affecting the stability of the gate valve and its sealing during working use.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a wear-resistant electric flat gate valve, provided with a valve upper cover that is easy to store and use, and a positioning seat is installed on the upper surface of the valve upper cover, and a valve lower seat is installed on the lower surface of the valve upper cover; comprising: a rotating part, which rotates on the middle section of the inner surface of the positioning seat, and a bevel gear 1 is installed on the upper surface of the rotating part, and the left side of the outer surface of the bevel gear 1 is meshed and connected with a bevel gear 2, and at the same time, a motor is installed on the outer surface of the bevel gear 2, and a threaded rod is threadedly connected to the middle section of the inner surface of the rotating part and the bevel gear 1, and a gate plate is installed on the lower surface of the threaded rod, and the outer surface of the gate plate is nested and connected with a wear-resistant shell, and the gate plate is provided with a multi-layer sealing mechanism; a rotating shaft, which rotates on the upper side of the inner surface of the gate plate, and a turntable and a spur gear are installed on the outer surface of the rotating shaft, and the turntable is provided with an anti-disengagement locking mechanism.

[0007] Preferably, the positioning seat forms a positioning rotation structure through the rotating part and the bevel gear 1, and the bevel gear 1 forms an engaging rotation structure through the bevel gear 2 and the motor, and the rotating part and the bevel gear 1 form a threaded structure with the threaded rod, and at the same time the threaded rod and the gate plate form an integrated structure, and the gate plate and the wear-resistant shell form a nested structure.

[0008] The above structure can effectively control the stability of gate adjustment during use, and cooperate with the wear-resistant shell assembled with the gate to improve wear resistance, thereby improving the wear resistance of the electric flat gate.

[0009] Preferably, a positioning column is installed on the lower surface of the rotating part, and a sealing part is installed on the outer surface of the positioning column, and a sealing strip is installed on the lower side of the outer surface of the seal, and the inner surface of the seal is threadedly connected to a threaded rod; the rotating part forms a nested structure with the sealing part through the positioning column, and the sealing part forms a nested sealing structure with the valve cover through the sealing strip, and the seal and the threaded rod form a threaded structure.

[0010] Through the above structure, the sealing performance of the connection between the bevel gear 1 and the valve upper cover is effectively improved through the cooperation between the sealing member and the sealing strip during use.

[0011] Preferably, the outer surface of the wear-resistant shell installed on the gate plate in the multi-layer sealing mechanism is fitted with an airbag, and a positioning ring 1 is installed on the outer surface of the airbag, and the positioning ring 1 is nested in the inner surface of the valve lower seat, and the outer surface of the airbag is nested and connected with an air pipe, and the outer surface of the air pipe is installed with an air pump; the middle section of the inner surface of the valve lower seat is nested with a positioning ring 2, and the upper and lower sides of the outer surface of the positioning ring 2 are installed with sealing ring 1, and the middle section of the outer surface of the positioning ring 2 is symmetrically installed with barrier rings, and a center ring is installed between the symmetrical barrier rings, and the wear-resistant shell is extruded and connected to the side surfaces of the inner surfaces of the sealing ring 1, the barrier ring and the center ring.

[0012] Through the above structure, the sealing performance of the airbag can be improved during use. When the wear-resistant shell moves up and down and wear occurs, the sealing performance can be improved by coordinating the inflation and exhaust of the airbag, and the sealing stability can be further improved by coordinating the sealing ring, the barrier ring and the center ring.

[0013] Preferably, the wear-resistant shell and the airbag form a fitting structure, and the airbag forms a nested structure with the valve lower seat through a positioning ring, and the airbag forms an integrated structure with the air pipe and the air pump.

[0014] The above structure can effectively improve the assembly stability of the airbag during use, and the airbags are assembled on the upper and lower sides of the inlet and outlet, thereby improving the sealing stability.

[0015] Preferably, the valve lower seat and the second positioning ring form a nested structure, and the second positioning ring and the first sealing ring, the barrier ring and the center ring form an integrated structure, and the first sealing ring, the barrier ring and the second positioning ring form a symmetrical structure.

[0016] With the above structure, when in use, a sealing process can be effectively formed on the outer surface of the positioning ring 2 from one side to the middle section through the cooperation of the sealing ring 1, the barrier ring and the center ring.

[0017] Preferably, a connecting rod is rotated on the outer surface of the turntable in the anti-disengagement locking mechanism, and a clamp is rotated on the side of the outer surface of the connecting rod, and the clamp is limited and engaged on the inner surface of the clamping groove opened in the wear-resistant shell; the outer surface of the spur gear is meshed and connected with a rack, and a limit bar is installed on the outer surface of the rack, and the limit bar is limited and slid on the inner surface of the gate plate, and an extrusion spring is elastically connected between the gate plate and the rack, and a handle is installed on the upper surface of the limit bar.

[0018] Through the above structure, the stability of the wear-resistant shell assembly can be effectively controlled during use to prevent the wear-resistant shell from falling off. The wear-resistant shell can also be prevented from falling off through the cooperation of the spur gear and the rack and the use of the extrusion spring.

[0019] Preferably, the gate plate forms a circular linear moving structure through a turntable, a connecting rod and a clamp, and the clamp is symmetrically arranged about the middle section of the inner surface of the gate plate, and the turntable forms a coaxial rotation structure with the spur gear through a rotating shaft, while the spur gear and the rack form an engaging structure, and the rack forms an elastic telescopic structure with the gate plate through a limit bar and an extrusion spring, and the rack forms an integrated structure with the handle through the limit bar.

[0020] Through the above structure, when in use, the turntable, connecting rod and clamping parts can be used to improve the stability of the engagement after relative adjustment, and the coaxial spur gears can be used in conjunction with the rack and the extrusion spring to improve the limit stability and prevent the clamping parts from disengaging.

[0021] Preferably, the outer surface of the valve lower seat is equipped with an inlet and outlet, and the front and rear sides of the inner surface of the valve lower seat are nested with a cleaning ring, and the valve lower seat and the inlet and outlet form an integrated structure. At the same time, the valve lower seat and the cleaning ring form a limited nested structure, and the cleaning ring is fitted with the outer surface side of the wear-resistant shell.

[0022] Through the above structure, impurities adsorbed on the outside of the wear-resistant shell are cleaned and sealed during use, and impurities on the outside of the wear-resistant shell are reduced, thereby reducing wear of the wear-resistant shell when it moves.

[0023] Preferably, a positioning piece is nested in the inner surface of the gate plate, and a wear-resistant ring is installed on the outer surface of the positioning piece, and a sealing gasket is nested in the inner surface of the wear-resistant ring, and bolts are passed through the inner surfaces of the wear-resistant ring and the sealing gasket, and the threads of the bolts are connected to the front side of the inner surface of the wear-resistant shell; the gate plate forms a nested structure with the wear-resistant ring through the positioning piece, and the wear-resistant ring and the sealing gasket form an embedded structure, and the wear-resistant shell forms a threaded structure with the wear-resistant ring through the sealing gasket and the bolts.

[0024] Through the above structure, the stability of the assembly between the wear-resistant shell, the wear-resistant ring and the gate plate can be effectively controlled during use, and water seepage and corrosion between the wear-resistant shell and the wear-resistant ring during assembly and use can be avoided.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. A butt-assembled valve cover and valve lower seat are provided, and the gate is controlled by a motor, as well as the use of a wear-resistant shell and a wear-resistant ring that are nested in the gate limiter, thereby improving the stability of the gate assembly, reducing the friction between the gate and the gate valve shell, and improving the stability of the gate valve. In conjunction with the use of corresponding clips and bolts, the stability of the assembly between the wear-resistant shell and the wear-resistant ring is improved, and the wear resistance of the electric flat gate is improved.

[0027] 2. A multi-layer sealing mechanism is provided, which can effectively control the inflation and deflation of the air bags arranged on the upper and lower sides of the inlet and outlet through the wear-resistant shell assembled by nesting the gate plates, the connected wear-resistant rings, the trachea and the air pump, thereby improving the inflation and deflation stability, and improving the convenience of the seal of the wear-resistant shell, and further improving the sealing stability through the use of the sealing ring, the barrier ring and the center ring; further, through the cooperation of the assembled seals and the sealing strips, water seepage on the top of the valve cover can be avoided when the bevel gear is used, and the sealing stability of the upper side of the valve cover can be increased, and the safety of the gate plate and the wear-resistant shell can be improved.

[0028] 3. An anti-disengagement engagement mechanism is provided, which can control the symmetrical clips through the turntable arranged on the rotating shaft of the gate assembly, effectively engage the stability of the wear-resistant shell, and improve the stability of the turntable during use through the cooperation of the spur gear coaxially assembled on the turntable, the rack, the limit bar and the extrusion spring, to prevent the turntable from automatically reversing and the engagement position from falling off; further, the cleaning ring installed on the inlet and outlet of the valve lower seat assembly can clean the impurities on the outer surface of the wear-resistant shell, thereby reducing excessive wear on the outer surface of the wear-resistant shell, and the nesting of the assembled wear-resistant rings, thereby improving the erosion wear resistance of the gate through-hole position and improving the safety of gate use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of the valve upper cover of the present invention;

[0030] Figure 2 This is a schematic diagram of a half-section three-dimensional structure of the valve upper cover of the present invention;

[0031] Figure 3 This is a schematic diagram of a partially cutaway three-dimensional structure of the valve upper cover of the present invention;

[0032] Figure 4 It is a schematic diagram of a partially cutaway three-dimensional structure of a rotating part of the present invention;

[0033] Figure 5 This is a schematic diagram of the three-dimensional structure of the trachea in a semi-section view of the present invention;

[0034] Figure 6 For the present invention Figure 5 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0035] Figure 7 This is a schematic diagram of the three-dimensional structure of the turntable of the present invention;

[0036] Figure 8 This is a schematic diagram of the three-dimensional structure of the cleaning ring of the present invention in a half-section view;

[0037] Figure 9 It is a schematic diagram of the partial cross-sectional three-dimensional structure of the wear-resistant ring of the present invention.

[0038] In the figure: 1. Valve cover; 2. Positioning seat; 3. Rotating part; 301. Positioning column; 302. Sealing part; 303. Sealing strip; 4. Bevel gear 1; 5. Bevel gear 2; 6. Motor; 7. Threaded rod; 8. Gate; 9. Air pump; 10. Air pipe; 11. Positioning ring 1; 12. Air bag; 13. Positioning ring 2; 14. Sealing ring 1; 15. Blocking ring; 16. Center ring; 17. Wear-resistant shell; 18. Slot; 19. Rotating shaft; 20. Turntable; 21. Connecting rod; 22. Clamp; 23. Spur gear; 24. Rack; 25. Limiting strip; 26. Extrusion spring; 27. Handle; 28. Valve lower seat; 29. ​​Inlet and outlet; 30. Cleaning ring; 31. Positioning part; 32. Wear-resistant ring; 33. Sealing gasket; 34. Bolt. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0040] See also Figures 1-9 The present invention provides a technical solution: a wear-resistant electric flat gate valve, provided with a valve cover 1 that is easy to store and use, and a positioning seat 2 is installed on the upper surface of the valve cover 1, and a valve lower seat 28 is installed on the lower surface of the valve cover 1;

[0041] Example 1: Figure 1-Figure 4The technical solution shown in the figure, the present invention provides the following technical solution: a wear-resistant electric flat gate valve, disclosed: comprising: a rotating part 3, which rotates on the middle section of the inner surface of the positioning seat 2, and the upper surface of the rotating part 3 is installed with a bevel gear 4, and the left side of the outer surface of the bevel gear 4 is meshed and connected with a bevel gear 2 5, and at the same time, the outer surface of the bevel gear 2 5 is installed with a motor 6, and the middle section of the inner surface of the rotating part 3 and the bevel gear 1 4 is threadedly connected with a threaded rod 7, and the lower surface of the threaded rod 7 is installed with a gate plate 8, and the outer surface of the gate plate 8 is nested and connected with a wear-resistant shell 17, and the gate plate 8 is provided with a multi-layer sealing mechanism; the positioning seat 2 forms a positioning rotation structure with the bevel gear 1 4 through the rotating part 3, and the bevel gear 1 4 is meshed with the bevel gear 2 5 through the bevel gear 2 5. The bevel gear 2 5 and the motor 6 form an engaged rotating structure, and the rotating part 3 and the bevel gear 1 4 form a threaded structure with the threaded rod 7, and the threaded rod 7 and the gate plate 8 form an integrated structure, and the gate plate 8 and the wear-resistant shell 17 form a nested structure; a positioning column 301 is installed on the lower surface of the rotating part 3, and a seal 302 is installed on the outer surface of the positioning column 301, and a sealing strip 303 is installed on the lower side of the outer surface of the seal 302, and the inner surface of the seal 302 is threadedly connected to the threaded rod 7; the rotating part 3 forms a nested structure with the seal 302 through the positioning column 301, and the seal 302 forms a nested sealing structure with the valve cover 1 through the sealing strip 303, and the seal 302 and the threaded rod 7 form a threaded structure.

[0042] When it is necessary to control the up and down movement of the gate plate 8, the motor 6 installed on the valve cover 1 will be used to effectively drive the bevel gear 2 5 to rotate through the output shaft, thereby controlling the bevel gear 2 5 to engage and adjust the bevel gear 1 4, and will drive the rotating part 3 installed on the bevel gear 1 4 to be stably nested in the inner surface of the positioning seat 2 and form a limited rotation. At the same time, the positioning column 301 installed on the lower side of the rotating part 3 is stably nested with a seal 302, and the seal 302 is nested in the inner and outer walls of the top of the valve cover 1, and the sealing strip 303 installed by the seal 302 effectively improves the rotation sealing of the rotating part 3 when rotating, and when the rotating part 3 and the seal 302 installed on the bevel gear 1 4 rotate, they will rotate synchronously with the threaded rod 7, which not only ensures the stability of the threaded rod 7 during rotation, but also ensures the sealing when the threaded rod 7 drives the gate plate 8 to move up and down, avoiding water seepage or internal leakage.

[0043] Example 2: Figure 1 、 Figure 2 、 Figure 4 and Figure 5The technical solution shown in the embodiment 1 further discloses the sealing effect of the sealing structure on the wear-resistant shell 17, the airbag 12 and the positioning ring 13, and its specific contents are as follows: the outer surface of the wear-resistant shell 17 on which the gate plate 8 is installed in the multi-layer sealing mechanism is fitted with the airbag 12, and the outer surface of the airbag 12 is installed with a positioning ring 11, and the positioning ring 11 is nested in the inner surface of the valve lower seat 28, and the outer surface of the airbag 12 is nested and connected with the air pipe 10, and the outer surface of the air pipe 10 is installed with an air pump 9; the middle section of the inner surface of the valve lower seat 28 is nested with a positioning ring 13, and the upper and lower sides of the outer surface of the positioning ring 13 are installed with a sealing ring 14, and the positioning ring 13 is installed with a sealing ring 14. A barrier ring 15 is symmetrically installed in the middle section of the outer surface of 13, and a center ring 16 is installed between the symmetrical barrier rings 15, and a wear-resistant shell 17 is extruded and connected to the inner surface side of the sealing ring 14, the barrier ring 15 and the center ring 16; the wear-resistant shell 17 and the airbag 12 form a fitting structure, and the airbag 12 forms a nested structure with the valve lower seat 28 through the positioning ring 11, and the airbag 12 forms an integrated structure with the trachea 10 and the air pump 9; the valve lower seat 28 and the positioning ring 2 13 form a nested structure, and the positioning ring 2 13 and the sealing ring 14, the barrier ring 15 and the center ring 16 form an integrated structure, and the sealing ring 14 and the barrier ring 15 and the positioning ring 2 13 form a symmetrical structure.

[0044] When the wear-resistant shell 17 assembled on the gate plate 8 moves, the outer surface of the wear-resistant shell 17 will be controlled to form contact with the outer surface of the airbag 12, and the air pump 9 installed through the valve lower seat 28 will be used to control the gas to be transported through the air pipe 10 to the airbag 12 installed on the positioning ring 11, thereby controlling the size of the airbag 12, and when the wear-resistant shell 17 moves, a small amount of air will be released from the airbag 12 to reduce the wear between the airbag 12 and the wear-resistant shell 17. At this time, the sealing of the wear-resistant shell 17 is mainly controlled by the positioning ring 2 13 nested on the valve lower seat 28, and the sealing ring 14, barrier ring 15 and center ring 16 assembled by the positioning ring 2 13 to control the sealing of the gate plate 8 when it moves. After the gate plate 8 is moved, the airbag 12 will be inflated to improve the sealing of the airbag 12 and prevent the transported material from flowing into the cavity when the valve upper cover 1 and the valve lower seat 28 are in use.

[0045] Example 3: Figure 1 、 Figure 2 、 Figure 7 、 Figure 8 and Figure 9The technical solution shown in the figure, based on the second embodiment, also discloses the stability of the connection between the gate plate 8 and the wear-resistant shell 17. The specific contents are as follows: the rotating shaft 19 rotates on the upper side of the inner surface of the gate plate 8, and the outer surface of the rotating shaft 19 is installed with a rotating disk 20 and a spur gear 23, and the rotating disk 20 is provided with an anti-separation engaging mechanism; in the anti-separation engaging mechanism, a connecting rod 21 is rotated on the outer surface of the rotating disk 20, and a clamping member 22 is rotated on the side of the outer surface of the connecting rod 21, and the clamping member 22 is limitedly engaged with the inner surface of the clamping groove 18 provided in the wear-resistant shell 17; The outer surface of the spur gear 23 is meshed with a rack 24, and a limit bar 25 is installed on the outer surface of the rack 24, and the limit bar 25 is limited and slid on the inner surface of the gate 8, and an extrusion spring 26 is elastically connected between the gate 8 and the rack 24, and a handle 27 is installed on the upper surface of the limit bar 25; the gate 8 forms a circular linear movement structure with the clamp 22 through the turntable 20 and the connecting rod 21, and the clamp 22 is symmetrically arranged about the middle section of the inner surface of the gate 8, and the turntable 20 forms a coaxial rotation structure with the spur gear 23 through the rotating shaft 19, and at the same time The spur gear 23 and the rack 24 form a meshing structure, and the rack 24 forms an elastic telescopic structure with the gate 8 through the limit bar 25 and the extrusion spring 26, and the rack 24 forms an integral structure with the handle 27 through the limit bar 25; the outer surface of the valve lower seat 28 is equipped with an inlet and outlet 29, and the front and rear sides of the inner surface of the valve lower seat 28 are nested and connected with a cleaning ring 30, and the valve lower seat 28 and the inlet and outlet 29 form an integral structure, and the valve lower seat 28 and the cleaning ring 30 form a limited nesting structure, and the cleaning ring 30 is fitted with the outer surface side of the wear-resistant shell 17. The gate 8 is arranged in a manner that: a positioning piece 31 is nested on the inner surface of the gate 8, and a wear-resistant ring 32 is installed on the outer surface of the positioning piece 31, and a sealing gasket 33 is nested on the inner surface of the wear-resistant ring 32, and bolts 34 are passed through the inner surfaces of the wear-resistant ring 32 and the sealing gasket 33, and the threads of the bolts 34 are connected to the front side of the inner surface of the wear-resistant shell 17; the gate 8 forms a nested structure with the wear-resistant ring 32 through the positioning piece 31, and the wear-resistant ring 32 and the sealing gasket 33 form an embedded structure, and the wear-resistant shell 17 forms a threaded structure with the wear-resistant ring 32 through the sealing gasket 33 and the bolts 34.

[0046] When the gate plate 8 is nested in the wear-resistant shell 17 for work, the wear-resistant ring 32 is stably nested in the flow hole of the gate plate 8 through the positioning piece 31, and the wear-resistant shell 17 is nested with the gate plate 8, so that the wear-resistant shell 17 is set to synchronously nest the wear-resistant ring 32 of the built-in sealing gasket 33, and when the wear-resistant shell 17 is nested with the gate plate 8, the handle 27 on the manually controlled gate plate 8 is slid, and the limit bar 25 assembled with the rack 24 installed on the handle 27 is driven to control the limited sliding in the gate plate 8, and the extrusion spring 26 is squeezed and contracted by the rack 24, and the sliding of the rack 24 is effectively engaged to control the rotation of the spur gear 23, and the rotation of the turntable 20 is coaxially controlled by the rotating shaft 19 installed by the spur gear 23, so that the rotation of the turntable 20 is linked to the rotating connecting rod 21 to drive the clamping member 22 to form a circular linear movement in the gate plate 8, so as to control the clamping member 22 to shrink to the inside of the gate plate 8, and the wear-resistant shell 17 can be stably nested. When the outer side of the gate plate 8 is opened, the handle 27 is loosened, and the extrusion spring 26 is elastically stretched, thereby controlling the spur gear 23 and the turntable 20 to rotate, which can automatically drive the turntable 20 to control the card member 22 to stably engage in the card slot 18 opened in the wear-resistant shell 17, thereby controlling the stability of the wear-resistant shell 17 in the later use, and when the wear-resistant shell 17 is seriously worn in the later stage, it can be quickly replaced. After the wear-resistant shell 17 is assembled, the control bolt 34 penetrates the rear shell of the wear-resistant shell 17 and the wear-resistant ring 32, and is effectively threaded in the front shell of the wear-resistant shell 17, so as to control the sealing between the wear-resistant shell 17 and the wear-resistant ring 32, prevent water seepage, and avoid damage to the gate plate 8. When the wear-resistant shell 17 in the electric flat gate valve moves up, the cleaning ring 30 nested in the valve lower seat 28 will be used to effectively clean its outer surface, reducing damage during movement, and the inlet and outlet 29 assembled through the valve lower seat 28 is connected to pipes and other components for use.

[0047] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant electric flat gate valve, provided with a valve cover (1) that is easy to store and use, wherein a positioning seat (2) is installed on the upper surface of the valve cover (1), and a valve lower seat (28) is installed on the lower surface of the valve cover (1); It is characterized by: include: A rotating member (3) rotates on the middle section of the inner surface of the positioning seat (2), and a bevel gear 1 (4) is installed on the upper surface of the rotating member (3), and the left side of the outer surface of the bevel gear 1 (4) is meshedly connected with the bevel gear 2 (5), and a motor (6) is installed on the outer surface of the bevel gear 2 (5), and the middle sections of the inner surfaces of the rotating member (3) and the bevel gear 1 (4) are threadedly connected with a threaded rod (7), and a gate (8) is installed on the lower surface of the threaded rod (7), and the outer surface of the gate (8) is nested and connected with a wear-resistant shell (17), and the gate (8) is provided with a multi-layer sealing mechanism; A rotating shaft (19) rotates on the upper side of the inner surface of the gate plate (8), and a rotating disk (20) and a spur gear (23) are installed on the outer surface of the rotating shaft (19), and the rotating disk (20) is provided with an anti-disengagement engagement mechanism; The outer surface of the turntable (20) in the anti-disengagement engaging mechanism is rotated with a connecting rod (21), and the side of the outer surface of the connecting rod (21) is rotated with a clamping piece (22), and the clamping piece (22) is limitedly engaged with the inner surface of the clamping groove (18) opened in the wear-resistant shell (17); the outer surface of the spur gear (23) is meshedly connected with a rack (24), and the outer surface of the rack (24) is installed with a limiting strip (25), and the limiting strip (25) is limitedly slid on the inner surface of the gate (8), and an extrusion spring (26) is elastically connected between the gate (8) and the rack (24), and a handle (27) is installed on the upper surface of the limiting strip (25); The gate plate (8) forms a circular linear moving structure through the turntable (20) and the connecting rod (21) and the clamping member (22), and the clamping member (22) is symmetrically arranged about the middle section of the inner surface of the gate plate (8), and the turntable (20) forms a coaxial rotating structure with the spur gear (23) through the rotating shaft (19), and the spur gear (23) and the rack (24) form an engaging structure, and the rack (24) and the gate plate (8) form an elastic telescopic structure through the limit bar (25) and the extrusion spring (26), and the rack (24) forms an integrated structure with the handle (27) through the limit bar (25).

2. The wear-resistant electric flat gate valve according to claim 1, characterized in that: The positioning seat (2) forms a positioning rotation structure through the rotating member (3) and the bevel gear 1 (4), and the bevel gear 1 (4) forms an engaged rotation structure through the bevel gear 2 (5) and the motor (6), and the rotating member (3) and the bevel gear 1 (4) and the threaded rod (7) form a threaded structure, while the threaded rod (7) and the gate plate (8) form an integrated structure, and the gate plate (8) and the wear-resistant shell (17) form a nested structure.

3. The wear-resistant electric flat gate valve according to claim 1, characterized in that: A positioning column (301) is installed on the lower surface of the rotating member (3), and a sealing member (302) is installed on the outer surface of the positioning column (301), and a sealing strip (303) is installed on the lower side of the outer surface of the sealing member (302), and a threaded rod (7) is threadedly connected to the inner surface of the sealing member (302); the rotating member (3) forms a nested structure with the sealing member (302) through the positioning column (301), and the sealing member (302) forms a nested sealing structure with the valve upper cover (1) through the sealing strip (303), and the sealing member (302) and the threaded rod (7) form a threaded structure.

4. The wear-resistant electric flat gate valve according to claim 1, characterized in that: The outer surface of the wear-resistant shell (17) installed on the gate (8) in the multi-layer sealing mechanism is fitted with an airbag (12), and a positioning ring (11) is installed on the outer surface of the airbag (12), and the positioning ring (11) is nested in the inner surface of the valve lower seat (28), and the outer surface of the airbag (12) is nested and connected with an air pipe (10), and the outer surface of the air pipe (10) is installed with an air pump (9); the middle section of the inner surface of the valve lower seat (28) is nested with a positioning ring (13), and the upper and lower sides of the outer surface of the positioning ring (13) are installed with a sealing ring (14), and the middle section of the outer surface of the positioning ring (13) is symmetrically installed with a blocking ring (15), and a center ring (16) is installed between the symmetrical blocking rings (15), and the wear-resistant shell (17) is squeezed and connected to the inner surface side of the sealing ring (14), the blocking ring (15) and the center ring (16).

5. The wear-resistant electric flat gate valve according to claim 4, characterized in that: The wear-resistant shell (17) and the airbag (12) form a fitting structure, and the airbag (12) forms a nested structure with the valve lower seat (28) through the positioning ring (11), and the airbag (12) forms an integrated structure with the air pipe (10) and the air pump (9).

6. The wear-resistant electric flat gate valve according to claim 4, characterized in that: The valve lower seat (28) and the positioning ring (13) form a nested structure, and the positioning ring (13) and the sealing ring (14), the barrier ring (15) and the center ring (16) form an integrated structure, and the sealing ring (14) and the barrier ring (15) and the positioning ring (13) form a symmetrical structure.

7. The wear-resistant electric flat gate valve according to claim 1, characterized in that: The outer surface of the valve lower seat (28) is provided with an inlet and outlet (29), and the front and rear sides of the inner surface of the valve lower seat (28) are nested and connected with a cleaning ring (30), and the valve lower seat (28) and the inlet and outlet (29) form an integrated structure, and the valve lower seat (28) and the cleaning ring (30) form a limited nesting structure, and the cleaning ring (30) is arranged to fit the side surface of the outer surface of the wear-resistant shell (17).

8. The wear-resistant electric flat gate valve according to claim 1, characterized in that: The inner surface of the gate plate (8) is nested with a positioning piece (31), and the outer surface of the positioning piece (31) is installed with a wear-resistant ring (32), and the inner surface of the wear-resistant ring (32) is nested with a sealing gasket (33), and the inner surfaces of the wear-resistant ring (32) and the sealing gasket (33) are penetrated by bolts (34), and the threads of the bolts (34) are connected to the front side of the inner surface of the wear-resistant shell (17); the gate plate (8) forms a nested structure with the wear-resistant ring (32) through the positioning piece (31), and the wear-resistant ring (32) and the sealing gasket (33) form an embedded structure, and the wear-resistant shell (17) forms a threaded structure with the wear-resistant ring (32) through the sealing gasket (33) and the bolts (34).

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