Disassembly-free pollution discharge type double flat gate valve

Abstract

The present application relates to the technical field of flat gate valve, and particularly relates to a disassembly-free sewage type double flat gate valve, which comprises two gate valve bodies, the inside of each gate valve body is hollow, a valve hole is formed in the middle of each gate valve body, a communication pipe is installed between the two gate valve bodies, a sewage assembly is installed in the middle of the bottom side of the communication pipe, an adjusting ring is fixedly installed at each end of the communication pipe, a fluid control plate is slidingly installed on the outer wall of the opposite side of each gate valve body, a control plate adjusting assembly is installed in each adjusting ring, a flat valve core is installed in each gate valve body, a valve cover is fixedly installed on each gate valve body through a screw, a lifting adjusting assembly penetrates through the top center of the valve cover, and the bottom of the lifting adjusting assembly is fixedly connected with the top of the flat valve core. The present application can discharge the fluid sewage in the valve cavity without disassembling the gate valve, thereby reducing the replacement cost and being more practical.

Description

Technical Field

[0001] This invention relates to the field of flat gate valve technology, and specifically to a double flat gate valve for non-disassembly and sewage discharge. Background Technology

[0002] Flat gate valves, as important fluid control devices, are widely used in industries such as petroleum, natural gas, chemical, metallurgy, power, and wastewater treatment. They are mainly used for shutting off or regulating the flow of media in pipelines. A flat gate valve is a sliding valve with a parallel gate as the closing element. It includes a valve body, valve seat, gate, valve stem connected to the gate, and a drive mechanism that moves the valve stem and gate. The valve seat and gate together form the valve's opening and closing mechanism. In ordinary flat gate valves, during the up-and-down movement of the gate, a significant portion of fluid contaminants in the pipeline can enter the bottom of the valve body through the channel between the gate, valve seat, and valve body, accumulating there. This prevents the gate from closing completely. If the contaminants are not removed in time, it will affect the normal operation and service life of the flat gate valve, resulting in economic losses.

[0003] CN217762131U discloses a utility model patent entitled "A Flat Gate Valve Capable of Discharging Sewage," which includes a valve body, valve cavity, gate, valve seat, valve stem, valve cover, and transmission mechanism. The transmission mechanism includes a handwheel. The gate is provided with a guide hole, and both sides of the bottom of the valve cavity have sewage discharge holes. A limit rod is fixedly installed at the lower part of the valve cavity, and a scraper is sleeved on the outer wall of the limit rod. This flat gate valve capable of discharging sewage achieves the cleaning of fluid debris inside the valve cavity from the outside by manually controlling the scraper to scrape back and forth at the bottom of the valve cavity. The debris is collected by the collection frame, which is detachable for convenient centralized treatment of the debris.

[0004] Although the aforementioned patent can drain the fluid contaminants inside the valve chamber, the collection frame needs to be disassembled each time contaminants are drained, and then reinstalled afterward. This frequent disassembly and reassembly during use increases wear on other components. If damage occurs, the entire gate valve needs to be replaced, which increases the replacement cost of the flat gate valve and is not conducive to practical use.

[0005] Therefore, the present invention provides a non-disassembly-required double flat gate valve for sewage discharge to solve the above problems. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, the present invention provides a non-disassembly-removable double flat gate valve for draining sewage, which solves the problems of disassembling and assembling parts and increasing the cost of replacement due to increased wear and tear of parts when draining fluid contaminants from the valve chamber.

[0007] A non-disassembly-removable double-panel gate valve includes two valve bodies, each of which is hollow inside. A valve hole is formed in the middle of the left and right sides of each valve body. A connecting pipe is installed between the two valve bodies at a position corresponding to the valve hole. A sewage discharge assembly is installed in the middle of the bottom side of the connecting pipe. Adjusting rings are fixedly installed at both ends of the connecting pipe. The other side of each of the two adjusting rings is fixedly connected to the side of each of the two valve bodies. A fluid control plate is slidably installed on the outer wall of each of the two valve bodies on opposite sides. A control plate adjustment assembly is installed in each of the two adjusting rings. A flat valve core is installed in each valve body. A valve cover is fixedly installed on each valve body by screws. A lifting adjustment assembly passes through the center of the top of the valve cover, and the bottom of the lifting adjustment assembly is fixedly connected to the top of the flat valve core.

[0008] Preferably, an inlet pipe is installed on the left side of the gate valve body on the left side, corresponding to the valve hole; an outlet pipe is installed on the right side of the gate valve body on the right side, corresponding to the valve hole; and flange connectors are fixedly installed at the other ends of both the inlet pipe and the outlet pipe.

[0009] Preferably, the sewage discharge assembly includes a sewage discharge block fixedly installed in the middle of the bottom side of the connecting pipe; a sewage discharge port is provided at the center of the sewage discharge block; a sewage discharge trough is provided at the bottom of the sewage discharge block; a sewage discharge port sealing plate is installed below the sewage discharge port; and a sealing plate adjustment mechanism is installed on the two side walls of the sewage discharge trough.

[0010] Preferably, the sealing plate adjustment mechanism includes adjustment plates fixedly installed on both side walls of the sewage trough; each adjustment plate has an adjustment groove; an adjustment drive plate is slidably installed in each adjustment groove via an adjustment slider, and two adjustment sliders are fixedly installed on each adjustment drive plate; an adjustment drive shaft is fixedly installed between the two adjustment drive plates; an adjustment drive gear is fixedly installed at the beam end of the adjustment drive shaft; an adjustment shaft is rotatably installed in the middle of the two adjustment plates and behind the adjustment groove; one end of the adjustment shaft passes through the sewage block and is fixedly installed with an adjustment handle; and an adjustment handle is rotatably installed between the two adjustment plates and below the adjustment shaft. The device is equipped with a drive rod; a drive wheel is fixedly mounted on the drive rod and the adjusting shaft respectively; both drive wheels are located on the side near the adjusting handle; belts are fitted over the two drive wheels, and the belts are arranged in a crisscross pattern; a drive gear is fixedly mounted on the adjusting shaft at the end near the drive wheel; a drive rack is fixedly mounted on the adjusting drive plate at the side near the drive gear, and the drive rack meshes with the drive gear; a sealing plate drive gear is fixedly mounted on the drive rod at the end near the drive wheel; an extension plate is fixedly mounted at the bottom of each adjusting drive plate; and the drain outlet sealing plate is fixedly mounted at the bottom of the two extension plates.

[0011] Preferably, hexagonal grooves are formed on the right outer wall of the gate valve body on the left side and the left outer wall of the gate valve body on the right side; a fluid control plate is slidably installed in each side of the hexagonal groove; a protrusion is fixedly installed on one side of each fluid control plate; a groove is formed on the other side of each fluid control plate, and the protrusion of each fluid control plate is located in the groove of the fluid control plate adjacent to it; an adjustment drive slider is fixedly installed on the fluid control plate on the side away from the hexagonal groove.

[0012] Preferably, the control panel adjustment assembly includes an annular slide rail fixedly installed on the outer wall of the gate valve body; an annular adjustment plate slidably installed on the annular slide rail; six limiting grooves evenly formed on the annular adjustment plate; each adjustment drive slider located in its corresponding limiting groove; an adjustment rack fixedly installed on the outer circumference of the annular adjustment plate; a gear shaft passing through the adjustment ring; an adjustment gear fixedly installed at one end of the gear shaft, and the adjustment gear meshing with the adjustment rack; and an adjustment handle fixedly installed at the other end of the gear shaft.

[0013] Preferably, the lifting adjustment assembly includes a lifting screw fixedly installed at the top center of the flat valve core; the upper end of the lifting screw extends outward through the valve cover and is fixedly installed with a baffle; a lifting adjustment valve is rotatably installed at the top center of the valve cover; the lifting adjustment valve and the lifting screw are threadedly connected.

[0014] Preferably, a through hole is provided in the middle of the flat plate valve core, and the diameter of the through hole is larger than the diameter of the valve hole; the inner diameter of the annular adjusting plate is larger than the diameter of the valve hole.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention, by setting up a sewage discharge component, allows two adjusting drive plates to slide in the adjusting groove when fluid contaminants accumulate in the flat gate valve. This further drives the sewage discharge port sealing plate to move downwards and then flip open. The entire sewage discharge process does not require disassembly and assembly of the gate valve components, reducing wear on the gate valve components. This not only reduces the replacement cost of the flat gate valve but also improves its practical performance.

[0017] 2. This invention sets up a fluid control plate and a control plate adjustment assembly. The adjustment handle is manually rotated to drive the annular adjustment plate to rotate. The annular adjustment plate drives the six fluid control plates to slide in the hexagonal groove, thereby increasing the cross-sectional area of ​​the gap formed by the six fluid control plates to achieve the purpose of increasing the fluid flow rate.

[0018] 3. This invention uses a lifting adjustment component. By rotating the lifting adjustment valve, the lifting screw can be moved up and down. When the lifting screw is moved so that the through hole on the flat valve core is aligned with the valve hole of the gate valve body, the flat gate valve is in the open state. When it is necessary to close the flat gate valve, the lifting adjustment valve is rotated in the opposite direction to move the lifting screw upward so that the flat valve core can completely block the valve hole of the gate valve body. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is the left view of the present invention;

[0021] Figure 3 For the present invention Figure 2 Cross-sectional view along the AA direction;

[0022] Figure 4 This is the front view of the present invention;

[0023] Figure 5 For the present invention Figure 4 Three-dimensional cross-section in the middle BB direction;

[0024] Figure 6 For the present invention Figure 4 A bottom-view cross-section along the CC direction;

[0025] Figure 7 This is a three-dimensional structural diagram of a portion of the present invention;

[0026] Figure 8 For the present invention Figure 2 A three-dimensional cross-sectional view along the DD direction;

[0027] Figure 9 This is a three-dimensional structural diagram of the sealing plate adjustment mechanism in this invention;

[0028] Figure 10 For the present invention Figure 8 Enlarged view of point A in the middle;

[0029] Figure 11 For the present invention Figure 7 Enlarged view of point B in the middle;

[0030] Figure 12 For the present invention Figure 1 Enlarged view of point C in the middle.

[0031] In the picture:

[0032] 1. Gate valve body; 2. Valve orifice; 3. Connecting pipe; 4. Drain assembly; 5. Adjusting ring; 6. Fluid control plate; 7. Control plate adjusting assembly; 8. Flat valve core; 9. Screw; 10. Valve cover; 11. Lifting adjusting assembly; 12. Inlet pipe; 13. Outlet pipe; 14. Flange connection seat; 15. Drain block; 16. Drain port; 17. Drain trough; 18. Drain port sealing plate; 19. Sealing plate adjusting mechanism; 20. Adjusting plate; 21. Adjusting slide; 22. Adjusting slider; 23. Adjusting drive plate; 24. Adjusting drive shaft; 25. Adjusting... 26. Drive gear; 27. Adjusting shaft; 28. Drive rod; 29. ​​Drive wheel; 30. Adjusting handle; 31. Extension plate; 32. Hexagonal slide groove; 33. Belt; 34. Protrusion; 35. Groove; 36. Adjusting drive slider; 37. Annular slide rail; 38. Annular adjusting plate; 39. Limiting groove; 40. Adjusting rack; 41. Gear shaft; 42. Adjusting gear; 43. Adjusting handle; 44. Lifting screw; 45. Baffle; 46. Lifting regulating valve; 47. Through hole; 48. Drive gear; 49. Drive rack; 50. Sealing plate drive gear. Detailed Implementation

[0033] The following will refer to the attached reference. Figures 1 to 12 The various embodiments of the present invention will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0034] A non-disassembly, double-panel flat gate valve for sewage discharge, as shown in the attached document. Figure 1 To be continued Figure 12 As shown, the device includes two gate valve bodies 1, each of which is hollow inside. A valve hole 2 is provided in the middle of the left and right sides of each gate valve body 1. A connecting pipe 3 is installed between the two gate valve bodies 1 at a position corresponding to the valve hole 2. A drain assembly 4 is installed in the middle of the bottom side of the connecting pipe 3. Adjusting rings 5 ​​are fixedly installed at both ends of the connecting pipe 3. The other side of each of the two adjusting rings 5 ​​is fixedly connected to the side of each of the two gate valve bodies 1. A fluid control plate 6 is slidably installed on the outer wall of each of the two gate valve bodies 1 on opposite sides. A control plate adjustment assembly 7 is installed in each of the two adjusting rings 5. A flat valve core 8 is installed in each gate valve body 1. A valve cover 10 is fixedly installed on each gate valve body 1 by screws 9. A lifting adjustment assembly 11 passes through the center of the top of the valve cover 10, and the bottom of the lifting adjustment assembly 11 is fixedly connected to the top of the flat valve core 8.

[0035] In practical use, first connect the pipeline to the flat gate valve. Both sides of the two gate valve bodies 1 have through-holes 2 in the middle, and a connecting pipe is installed between the two gate valve bodies 1. Fluid can enter the connecting pipe 3 from the valve holes 2 in the two left gate valve bodies 1 and then flow out from the valve holes 2 in the right gate valve body 1. After a period of use, when some impurities accumulate in the flat gate valve, they can be discharged outside the flat gate valve through the drain assembly 4. During use, if the flow rate of the fluid flowing into the flat gate valve is too high, the fluid control plate 6 can be adjusted through the control plate adjustment assembly 7 to control the fluid flow rate in the flat gate valve. By adjusting the lifting adjustment assembly 11, the through hole on the flat valve core 8 is aligned with the valve hole. At this time, the flat gate valve is in the open state, and fluid can pass through the flat gate valve. When the through hole on the flat valve core 8 is not aligned with the valve hole, the flat gate valve is in the closed state, and fluid cannot pass through the flat gate valve.

[0036] As attached Figure 1 To be continued Figure 3 As shown, an inlet pipe 12 is installed on the left side of the gate valve body 1 on the left side, corresponding to the valve hole 2; an outlet pipe 13 is installed on the right side of the gate valve body 1 on the right side, corresponding to the valve hole 2; flange connection seats 14 are fixedly installed at the other end of the inlet pipe 12 and the outlet pipe 13, and the pipe flanges are connected to the flange connection seats 14 on the inlet pipe 12 and the outlet pipe 13 respectively.

[0037] As attached Figure 1 Appendix Figure 6 Appendix Figure 9As shown, the sewage discharge assembly 4 includes a sewage discharge block 15 fixedly installed in the middle of the bottom side of the connecting pipe 3; a sewage discharge port 16 is provided at the center of the sewage discharge block 15; a sewage discharge trough 17 is provided at the bottom of the sewage discharge block 15; a sewage discharge port sealing plate 18 is installed below the sewage discharge port 16; and a sealing plate adjustment mechanism 19 is installed on both side walls of the sewage discharge trough 17.

[0038] As attached Figure 8 Appendix Figure 9 Appendix Figure 10 As shown, the sealing plate adjustment mechanism 19 includes adjustment plates 20 fixedly installed on both side walls of the sewage trough 17, with two adjustment plates 20 fixedly installed by screws; each adjustment plate 20 has an adjustment groove 21; an adjustment drive plate 23 is slidably installed in each adjustment groove 21 via an adjustment slider 22, and two adjustment sliders 22 are fixedly installed on each adjustment drive plate 23; an adjustment drive shaft 24 is fixedly installed between the two adjustment drive plates 23; an adjustment drive gear 25 is fixedly installed at the beam end of the adjustment drive shaft 24; an adjustment shaft 26 is rotatably installed in the middle of the two adjustment plates 20 and located behind the adjustment groove 21; one end of the adjustment shaft 26 passes through the sewage block 15 and is fixedly installed with an adjustment handle 29; an adjustment handle 29 is fixedly installed between the two adjustment plates 20 and located on the adjustment shaft 26. A drive rod 27 is rotatably mounted below; a drive wheel 28 is fixedly mounted on the drive rod 27 and the adjusting shaft 26 respectively; both drive wheels 28 are located on the side near the adjusting handle 29; belts 32 are sleeved on the two drive wheels 28 and are arranged in a cross configuration; a drive gear 48 is fixedly mounted on the adjusting shaft 26 at the end near the drive wheel 28; a drive rack 49 is fixedly mounted on the adjusting drive plate 23 at the side near the drive gear 48, and the drive rack 49 meshes with the drive gear 48; a sealing plate drive gear 50 is fixedly mounted on the drive rod 27 at the end near the drive wheel 28; an extension plate 30 is fixedly mounted at the bottom of each adjusting drive plate 23; and a drain outlet sealing plate 18 is fixedly mounted at the bottom of the two extension plates 30.

[0039] In practical use, when some impurities accumulate in the flat gate valve, rotating the adjusting handle 29 causes the adjusting shaft 26 to rotate clockwise. The clockwise rotation of the adjusting shaft 26 causes the drive gear 48 to rotate clockwise, which in turn causes the drive rack 49 and the adjusting drive plate 23 to slide downward in the adjusting groove 21. When the lower adjusting slider 22 is at the bottom of the vertical section of the adjusting groove 21, the adjusting drive gear 25 meshes with the sealing plate drive gear 50, and the upper adjusting slider 22 is at the junction of the vertical section and the arc section of the adjusting groove 21. Since the belts 32 are arranged in a cross configuration, the clockwise rotation of the adjusting shaft 26 drives the drive rod 27 to rotate counterclockwise, which in turn drives the sealing plate drive gear 50 to rotate counterclockwise, further driving the adjusting drive gear 25 to rotate counterclockwise. This causes the adjusting slider 22 on the upper side of the adjusting drive plate 23 to slide in the arc section of the adjusting groove 21, thus driving the adjusting drive plate 23 to rotate. At the same time, the movement trajectory of the drain port sealing plate 18 is to first move downward and then flip open. After the sewage discharge is completed, the adjusting handle 29 is rotated in the opposite direction to seal the drain port 16 with the drain port sealing plate 18.

[0040] As attached Figure 7 Appendix Figure 11 As shown, hexagonal grooves 31 are provided on the right outer wall of the gate valve body 1 on the left side and on the left outer wall of the gate valve body 1 on the right side; a fluid control plate 5 is slidably installed in each side of the hexagonal groove 31; a protrusion 33 is fixedly installed on one side of each fluid control plate 5; a groove 34 is provided on the other side of each fluid control plate 5, and the protrusion 33 of each fluid control plate 5 is located in the groove 34 of the fluid control plate 5 adjacent to it; an adjustment drive slider 35 is fixedly installed on the fluid control plate 5 on the side away from the hexagonal groove 31.

[0041] As attached Figure 5 Appendix Figure 7 Appendix Figure 11 Appendix Figure 12 As shown, the control panel adjustment assembly 7 includes an annular slide rail 36 fixedly installed on the outer side wall of the gate valve body 1; an annular adjustment plate 37 is slidably installed on the annular slide rail 36; six limiting grooves 38 are evenly opened on the annular adjustment plate 37; each adjustment drive slider 35 is located in its corresponding limiting groove 38; an adjustment rack 39 is fixedly installed on the outer circumference of the annular adjustment plate 37; a gear shaft 40 is installed through the adjustment ring 5; an adjustment gear 41 is fixedly installed at one end of the gear shaft 40, and the adjustment gear 41 meshes with the adjustment rack 39; an adjustment handle 43 is fixedly installed at the other end of the gear shaft 40.

[0042] In practical use, if it is necessary to increase the fluid flow rate ( Figure 5(In the minimum flow rate state), manually rotate the adjustment handle 43. The adjustment handle 43 drives the adjustment gear 41 to rotate, which in turn drives the annular adjustment plate 37 to rotate. All six adjustment drive sliders 35 are located in their corresponding limit grooves 38. The rotation of the annular adjustment plate 37 will drive the six fluid control plates 5 to slide in the hexagonal slide groove 31, thereby increasing the cross-sectional area of ​​the notch formed by the six fluid control plates 5 to achieve the purpose of increasing the flow rate of the fluid.

[0043] As attached Figure 1 Appendix Figure 3 Appendix Figure 5 As shown, the lifting adjustment assembly 11 includes a lifting screw 44 fixedly installed at the top center of the flat valve core 8; the upper end of the lifting screw 44 extends outward through the valve cover 10 and is fixedly installed with a baffle 45; a lifting adjustment valve 46 is rotatably installed at the top center of the valve cover 10; the lifting adjustment valve 46 and the lifting screw 44 are connected by a thread.

[0044] As attached Figure 3 Appendix Figure 5 As shown, a through hole 47 is provided in the middle of the flat plate valve core 8, and the diameter of the through hole 47 is larger than the diameter of the valve hole 2; the inner diameter of the annular adjusting plate 37 is larger than the diameter of the valve hole 2.

[0045] In practical use, the lifting regulating valve 46 is manually rotated. Since the lifting regulating valve 46 and the lifting screw 44 are connected by threads, the rotation of the lifting regulating valve 46 will drive the lifting screw 44 to move up and down. When the lifting screw 44 is moved to align the through hole 47 on the flat valve core 8 with the valve hole 2 of the gate valve body 1, the flat gate valve is in the open state. When it is necessary to close the flat gate valve, the lifting regulating valve 46 is rotated in the opposite direction to move the lifting screw 44 upward so that the flat valve core 8 can completely block the valve hole 2 of the gate valve body 1.

[0046] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A non-disassembly-required double-panel gate valve for sewage discharge, comprising two gate valve bodies (1), characterized in that, Each gate valve body (1) is hollow inside; valve holes (2) are opened in the middle of the left and right sides of each gate valve body (1); a connecting pipe (3) is installed between two gate valve bodies (1) at a position corresponding to the valve holes (2); a drain assembly (4) is installed in the middle of the bottom side of the connecting pipe (3); adjusting rings (5) are fixedly installed at both ends of the connecting pipe (3); the other side of the two adjusting rings (5) is fixedly connected to the side of the two gate valve bodies (1); A fluid control plate (6) is slidably mounted on the outer wall of the gate valve body (1) on opposite sides; a control plate adjustment assembly (7) is installed in each of the two adjustment rings (5); a flat valve core (8) is installed in each gate valve body (1); a valve cover (10) is fixedly mounted on each gate valve body (1) by screws (9); a lifting adjustment assembly (11) passes through the top center of the valve cover (10); and the bottom of the lifting adjustment assembly (11) is fixedly connected to the top of the flat valve core (8); The sewage discharge assembly (4) includes a sewage discharge block (15) fixedly installed in the middle of the bottom side of the connecting pipe (3); a sewage discharge port (16) is provided in the center of the sewage discharge block (15); a sewage discharge trough (17) is provided in the bottom of the sewage discharge block (15); a sewage discharge port sealing plate (18) is installed below the sewage discharge port (16); and a sealing plate adjustment mechanism (19) is installed on both sides of the sewage discharge trough (17). The sealing plate adjustment mechanism (19) includes adjustment plates (20) fixedly installed on both side walls of the drain trough (17); each adjustment plate (20) is provided with an adjustment groove (21); an adjustment drive plate (23) is slidably installed in each adjustment groove (21) via an adjustment slider (22), and two adjustment sliders (22) are fixedly installed on each adjustment drive plate (23); an adjustment drive shaft (24) is fixedly installed between the two adjustment drive plates (23); adjustment drive gears (25) are fixedly installed at both ends of the adjustment drive shaft (24); an adjustment shaft (26) is rotatably installed in the middle of the two adjustment plates (20) and on the rear side of the adjustment groove (21); an adjustment handle (29) is fixedly installed through the drain block (15) at one end of the adjustment shaft (26); a drive rod is rotatably installed between the two adjustment plates (20) and below the adjustment shaft (26). 27); A drive wheel (28) is fixedly installed on the drive rod (27) and the adjusting shaft (26); both drive wheels (28) are located on the side near the adjusting handle (29); a belt (32) is provided on the two drive wheels (28), and the belt (32) is arranged in a cross pattern; a drive gear (48) is fixedly installed on the adjusting shaft (26) at one end near the drive wheel (28); a drive rack (49) is fixedly installed on the adjusting drive plate (23) at one end near the drive gear (48), and the drive rack (49) meshes with the drive gear (48); a sealing plate drive gear (50) is fixedly installed on the drive rod (27) at one end near the drive wheel (28); an extension plate (30) is fixedly installed at the bottom of each adjusting drive plate (23); the sewage outlet sealing plate (18) is fixedly installed at the bottom of the two extension plates (30); When some impurities accumulate in the flat gate valve, turn the adjusting handle (29). The adjusting handle (29) drives the adjusting shaft (26) to rotate clockwise. The clockwise rotation of the adjusting shaft (26) drives the drive gear (48) to rotate clockwise, thereby further driving the drive rack (49) and the adjusting drive plate (23) to slide downward in the adjusting groove (21). When the adjusting slider (22) on the lower side is located at the bottom of the vertical section of the adjusting groove (21), the adjusting drive gear (25) meshes with the sealing plate drive gear (50). Furthermore, the upper adjusting slider (22) is located at the junction of the vertical section and the arc section of the adjusting groove (21). Since the belt (32) is arranged in a cross pattern, the clockwise rotation of the adjusting shaft (26) drives the drive rod (27) to rotate counterclockwise, which in turn drives the sealing plate drive gear (50) to rotate counterclockwise, further driving the adjusting drive gear (25) to rotate clockwise, thereby driving the adjusting slider (22) on the upper side of the adjusting drive plate (23) to slide in the arc section of the adjusting groove (21), that is, driving the adjusting drive plate (23) to rotate.

2. The non-disassembly-required double-panel gate valve for sewage discharge according to claim 1, characterized in that, An inlet pipe (12) is installed on the left side of the gate valve body (1) on the left side, corresponding to the valve hole (2); an outlet pipe (13) is installed on the right side of the gate valve body (1) on the right side, corresponding to the valve hole (2); and flange connecting seats (14) are fixedly installed at the other end of the inlet pipe (12) and the outlet pipe (13).

3. The non-disassembly-required double-panel gate valve for sewage discharge according to claim 1, characterized in that, Hexagonal grooves (31) are provided on the right outer wall of the gate valve body (1) on the left side and on the left outer wall of the gate valve body (1) on the right side; a fluid control plate (6) is slidably installed on each side of the hexagonal groove (31); a protrusion (33) is fixedly installed on one side of each fluid control plate (6); a groove (34) is provided on the other side of each fluid control plate (6), and the protrusion (33) of each fluid control plate (6) is located in the groove (34) of the fluid control plate (6) adjacent to it; an adjustment drive slider (35) is fixedly installed on the fluid control plate (6) on the side away from the hexagonal groove (31).

4. The non-disassembly-resistant double-panel gate valve for sewage discharge according to claim 3, characterized in that, The control panel adjustment assembly (7) includes an annular slide rail (36) fixedly installed on the outer side wall of the gate valve body (1); an annular adjustment plate (37) is slidably installed on the annular slide rail (36); six limiting grooves (38) are evenly opened on the annular adjustment plate (37); each adjustment drive slider (35) is located in its corresponding limiting groove (38); an adjustment rack (39) is fixedly installed on the outer circumference of the annular adjustment plate (37); a gear shaft (40) is installed through the adjustment ring (5); an adjustment gear (41) is fixedly installed at one end of the gear shaft (40), and the adjustment gear (41) meshes with the adjustment rack (39); an adjustment handle (43) is fixedly installed at the other end of the gear shaft (40).

5. A non-disassembly-resistant double-panel gate valve for sewage discharge according to claim 4, characterized in that, The lifting adjustment assembly (11) includes a lifting screw (44) fixedly installed at the top center of the flat valve core (8); the upper end of the lifting screw (44) extends outward through the valve cover (10) and is fixedly installed with a baffle (45); a lifting adjustment valve (46) is rotatably installed at the top center of the valve cover (10); the lifting adjustment valve (46) and the lifting screw (44) are threadedly connected.

6. A non-disassembly-resistant double-panel gate valve for sewage discharge according to claim 5, characterized in that, A through hole (47) is provided in the middle of the flat plate valve core (8), and the diameter of the through hole (47) is larger than the diameter of the valve hole (2); the inner diameter of the annular adjusting plate (37) is larger than the diameter of the valve hole (2).

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