Blow-down valve for sewage treatment

Abstract

The invention relates to the related technical field of valves, and discloses a blow-down valve for sewage treatment, which comprises a valve body, one end of the valve body is fixedly connected with a conveying pipe, the side surface of the valve body is fixedly connected with a blow-down pipe, the other end of the valve body is fixedly connected with a shunt pipe, the middle part of the valve body is provided with a spherical valve core, and the top of the spherical valve core is fixedly connected with a valve rod; a first channel is formed in the side, close to the conveying pipe, of the spherical valve element, a second channel is formed in the side, close to the blow-off pipe, of the spherical valve element, and the side, away from the conveying pipe, of the spherical valve element is used for blocking the flow dividing pipe. In addition, the crushing blades can crush impurities in the dirty liquid in the spherical valve element, the two corresponding tool rests are selectively adjusted to move to the joint of the channel and the pipeline, and therefore the dirty liquid can be discharged smoothly, and the switching and distributing functions of the dirty liquid are achieved. And the crushing blades can be swung to crush blocking impurities at the joint of the channel and the pipeline.

Description

Technical Field

[0001] The present invention belongs to the technical field of valves, and more specifically, relates to a sewage discharge valve for sewage treatment. Background Art

[0002] The sewage valve is a valve device used to control fluid discharge. It is widely used in industrial, construction and civil fields. Its main function is to discharge sewage, sludge and other pollutants.

[0003] The existing technology still has the following technical problems: The existing sewage valve cannot switch the direction of sewage delivery during the sewage discharge process. If the sewage pipe is blocked, the sewage will flow back, resulting in poor sewage discharge effect. In addition, there is no crushing structure inside the sewage valve, which makes the sewage valve easily blocked by impurities contained in the sewage, which will also cause poor sewage discharge effect.

[0004] Therefore, in view of this, the existing structure is studied and improved, and a sewage valve for sewage treatment is provided to achieve a more practical purpose. Summary of the Invention

[0005] The present invention provides a sewage discharge valve for sewage treatment, which is used to overcome the above-mentioned defects in the prior art.

[0006] The purpose and effect of the sewage treatment valve of the present invention are achieved by the following specific technical means: The closure of the valve body is connected with the closure of the valve body, and the closure of the valve body is connected with the closure of the valve body, so that the closure of the valve body can be closed.

[0007] According to a further technical solution, a valve cover is provided on the top of the valve body, the valve cover is threadedly connected to the inside of the valve body by a first locking bolt, and the valve stem is rotatably connected to the valve cover.

[0008] According to a further technical solution, a drive box is fixedly connected to the top of the valve cover, a sealing cover is provided on the top of the drive box, a second locking bolt is connected to the internal threads of the drive box and the sealing cover, and the upper end of the valve stem is provided inside the drive box.

[0009] According to a further technical solution, a first motor is fixedly installed inside the drive box, a worm is fixedly connected to the output end of the first motor, a worm wheel is meshedly provided on the outer side of the worm wheel, and the worm wheel is fixedly connected to the valve stem.

[0010] A further technical solution is that the bottom of the valve stem is fixedly connected to a driving arm, a second motor is fixedly installed inside the driving arm, a first power shaft is provided at the output end of the second motor, one end of the first power shaft is fixedly connected to an adjusting arm, and the tool holder and the crushing blade are distributed on the lower outside of the adjusting arm.

[0011] A further technical solution is that a third motor is fixedly installed inside the adjusting arm, the output end of the third motor is fixedly connected to the second power shaft, the outer wall of the second power shaft is fixedly connected to the first bevel gear, the outer side of the first bevel gear is meshed with a second bevel gear, the inner side of the second bevel gear is fixedly connected to a trapezoidal screw, the outer wall of the adjusting arm is fixedly connected to a mounting box, and the trapezoidal screw is rotatably connected to the mounting box; a screw nut is provided on the outer side of the trapezoidal screw, and a movable seat is provided on the outer side of the screw nut, and a connecting rod is fixedly connected to the outer wall of the movable seat, and one end of the connecting rod is fixedly connected to the tool holder.

[0012] According to a further technical solution, a rotary joint is provided between the second motor and the adjusting arm.

[0013] A further technical solution is that an installation groove is opened on the inner side of the installation box, and an electromagnet is fixedly installed inside the installation groove; the outer wall of the movable seat is fixedly connected to a connecting block, the outer wall of the connecting block is fixedly connected to a sliding rod, a sleeve is provided on the outer side of the sliding rod, the sliding rod is slidably connected to the sleeve, one end of the sleeve is fixedly connected to a metal block, and the electromagnet corresponds to the position of the metal block.

[0014] According to a further technical solution, a compression spring is provided between the sleeve and the connecting block.

[0015] According to a further technical solution, a guide groove is provided on the inner side of the installation box, a sliding plate is fixedly connected to the outer wall of the metal block, and the sliding plate is slidably connected to the guide groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When the present invention is in use, the dirty liquid will be transported to the spherical valve core through the delivery pipe, and then the dirty liquid will enter the interior of the spherical valve core through the first channel opened by the spherical valve core, and then the dirty liquid inside the spherical valve core will be transported to the interior of the sewage pipe through the second channel opened by the spherical valve core, and the dirty liquid will be discharged through the sewage pipe. At this time, the diversion pipe is blocked by the spherical valve core, so that the dirty liquid will not be discharged through the diversion pipe. When the sewage pipe is blocked by impurities in the dirty liquid, the first motor can be started, and the output end of the first motor will drive the worm to rotate. The outer side of the worm is meshed with a worm gear, and the worm gear is fixedly connected to the valve stem, and the valve stem is fixedly connected to the spherical valve core, and then the spherical valve core is driven to rotate through the valve stem, so that the second channel opened on the outside of the spherical valve core will rotate to the position of the delivery pipe, and the third channel opened on the outside of the spherical valve core will rotate to the diversion pipe, and the sewage pipe is blocked by the spherical valve core. At this time, the dirty liquid will be transported to the spherical valve core through the delivery pipe, and then the dirty liquid will enter the interior of the spherical valve core through the second channel opened by the spherical valve core. Then, the dirty liquid inside the spherical valve core will be transported to the inside of the diverter pipe through the third channel opened by the spherical valve core, and the dirty liquid will be discharged through the diverter pipe. At this time, the sewage pipe is blocked by the spherical valve core, so that the dirty liquid will not be discharged through the sewage pipe. The present invention can discharge the dirty liquid through the diverter pipe when the sewage pipe is blocked, avoiding the backflow of the dirty liquid while ensuring the smooth discharge of the dirty liquid, thereby realizing the switching distribution function of the sewage liquid.

[0017] During the process of conveying dirty liquid, the present invention can start the second motor fixedly installed inside the driving arm, and the output end of the second motor can drive the first power shaft to rotate. Because the first power shaft is fixedly connected to the adjusting arm, four tool holders are provided on the lower outer side of the adjusting arm, and each tool holder is fixedly connected to a plurality of crushing blades. The plurality of crushing blades are distributed inside the spherical valve core, so the four tool holders and the plurality of crushing blades can be driven to rotate, thereby crushing impurities in the dirty liquid inside the spherical valve core, thereby preventing the impurities inside the dirty liquid from clogging the spherical valve core and causing failure in the dirty liquid conveying.

[0018] In the process of conveying dirty liquid, the present invention has only two channels for circulation, so the two knife holders corresponding to the two circulation channels can be selected to extend outward, which can expand the crushing range of the crushing blade. Specifically, in the process of conveying dirty liquid, the third motor fixedly installed inside the regulating arm can be started, and the output end of the third motor can drive the second power shaft to rotate. Because the second power shaft is fixedly connected to the first bevel gear, the outer side of the first bevel gear is meshed with a second bevel gear, and the inner side of the second bevel gear is fixedly connected to a trapezoidal screw, which can then drive the trapezoidal screw to rotate, and under the action of the screw nut, it can drive the moving seat to move. Because the moving seat is fixedly connected to the connecting rod, and the connecting rod is fixedly connected to the knife holder, it can drive two of the knife holders corresponding to the circulation pipes to move outward, and then the second motor drives the knife holder and multiple crushing blades to swing slightly left and right, which can crush the blocked impurities at the junction of the pipe and the valve core and expand the crushing range of the crushing blade. During the process of the two tool holders corresponding to the circulation pipes extending outward, the electromagnets inside the corresponding mounting boxes on the inner sides of the two tool holders that do not extend outward are activated, so that the electromagnets fix the metal block through electromagnetic adsorption. At this time, the movable seat will drive the connection block fixed on the top to move during the movement. Because the sleeve is fixedly connected to the metal block and the metal block is adsorbed and fixed by the electromagnet, the sliding rod will slide toward the inside of the sleeve and the compression spring will deform and compress. Under the action of the compression spring resistance, the movement distance of the two tool holders that do not extend outward is smaller than the two tool holders extending outward. Therefore, it can avoid that the two tool holders that do not correspond to the two circulation channels collide with the spherical valve core and cause damage. In the process of conveying dirty liquid, the present invention can select the two tool holders corresponding to the circulation pipes and the multiple crushing blades thereon to extend outward to the intersection of the valve core and the pipe, and can swing the crushing blades to crush the blocking impurities at the intersection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the top structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the front view structure of the delivery pipe and the sewage pipe of the present invention; Figure 5 This is a schematic diagram of the rear view structure of the delivery pipe and the sewage pipe of the present invention; Figure 6 This is a schematic diagram of the front view structure of the delivery pipe and the diversion pipe of the present invention; Figure 7 This is a schematic diagram of the rear view structure of the flow of the delivery pipe and the diversion pipe of the present invention; Figure 8 The present invention Figure 6 Schematic diagram of the cutaway structure; Figure 9 The present invention Figure 8 Schematic diagram of partial cross-section structure; Figure 10 The present invention Figure 9 A in the middle is an enlarged structural diagram; Figure 11 The present invention Figure 9 Schematic diagram of partial cross-section structure; Figure 12 The present invention Figure 11 Enlarged structural diagram at point B in the middle.

[0022] Description of reference numerals: 1. Valve body; 2. Valve cover; 3. Drive box; 4. Sealing cover; 5. First motor; 6. Worm; 7. Worm gear; 8. Valve stem; 9. Spherical valve core; 10. Delivery pipe; 11. Drain pipe; 12. Diverter pipe; 13. First channel; 14. Second channel; 15. Third channel; 16. Drive arm; 17. Second motor; 18. Rotary joint; 19. First power shaft; 20. Adjustment arm; 21. Tool holder; 22. Crushing blade; 23. Third motor; 24. Second power shaft; 25. First bevel gear; 26. Second bevel gear; 27. Trapezoidal lead screw; 28. Mounting box; 29. ​​Connecting block; 30. Mounting slot; 31. Electromagnet; 32. Metal block; 33. Sleeve; 34. Sliding rod; 35. Compression spring; 36. Guide slot; 37. Sliding plate; 38. Lead screw nut; 39. Moving seat; 40. Connecting rod; 41. First locking bolt; 42. Second locking bolt. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or be operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0026] Refer to the attached Figures 1-12 The present invention provides a sewage valve for sewage treatment, comprising a valve body 1, one end of the valve body 1 is fixedly connected to a delivery pipe 10, a side of the valve body 1 is fixedly connected to a sewage pipe 11, the other end of the valve body 1 is fixedly connected to a diversion pipe 12, a spherical valve core 9 is provided in the middle of the valve body 1, and a valve stem 8 is fixedly connected to the top of the spherical valve core 9; a first channel 13 is opened on the side of the spherical valve core 9 close to the delivery pipe 10, a second channel 14 is opened on the side of the spherical valve core 9 close to the sewage pipe 11, and the spherical valve core 9 is away from the delivery pipe. One side of 10 is used to block the shunt pipe 12, and a third channel 15 is opened on the side of the spherical valve core 9 away from the second channel 14; four ring-shaped knife holders 21 are arranged inside the spherical valve core 9, and a plurality of crushing blades 22 are fixedly installed on the outer wall of each knife holder 21. The crushing blades 22 can crush impurities in the dirty liquid inside the spherical valve core 9, and the corresponding two knife holders 21 can be selectively adjusted to move to the intersection of the channel and the pipeline, and the crushing blades 22 can be swung to crush the blocking impurities at the intersection of the channel and the pipeline.

[0027] Preferably, a valve cover 2 is provided on the top of the valve body 1 , the valve cover 2 is threadedly connected to the inside of the valve body 1 by a first locking bolt 41 , and the valve stem 8 is rotatably connected to the valve cover 2 .

[0028] In this embodiment, the first locking bolt 41 can be screwed out from the valve cover 2 and the interior of the valve body 1 , so that the valve body 1 can be opened and the components inside the valve body 1 can be easily maintained later.

[0029] Preferably, the top of the valve cover 2 is fixedly connected with a drive box 3, the top of the drive box 3 is provided with a sealing cover 4, the inside of the drive box 3 and the sealing cover 4 is threadedly connected with a second locking bolt 42, and the upper end of the valve rod 8 is arranged in the inside of the drive box 3.

[0030] In the embodiment, the sealing cover 4 can be detached from the top of the drive box 3 by screwing out the second locking bolt 42 from the inside of the drive box 3 and the sealing cover 4, so as to facilitate the later maintenance of the parts in the inside of the drive box 3.

[0031] Preferably, the inside of the drive box 3 is fixedly installed with a first motor 5, the output end of the first motor 5 is fixedly connected with a worm 6, the outside of the worm 6 is meshingly provided with a worm gear 7, and the worm gear 7 is fixedly connected with the valve rod 8.

[0032] In the embodiment, the output end of the first motor 5 can transmit power to the valve rod 8 through the transmission of the worm 6 and the worm gear 7, so that the valve rod 8 obtains power and drives the spherical valve core 9 to rotate, thereby changing the flow direction of the dirty liquid, and the worm gear 7 and the worm 6 structure has a self-locking function, so that the adjusted spherical valve core 9 can be stably maintained.

[0033] Preferably, the bottom of the valve rod 8 is fixedly connected with a drive arm 16, the inside of the drive arm 16 is fixedly installed with a second motor 17, the output end of the second motor 17 is provided with a first power shaft 19, one end of the first power shaft 19 is fixedly connected with an adjusting arm 20, and a tool holder 21 and a crushing blade 22 are distributed below and outside of the adjusting arm 20.

[0034] In the embodiment, the output end of the second motor 17 can drive the first power shaft 19 to rotate, because the first power shaft 19 is fixedly connected with the adjusting arm 20, four tool holders 21 are arranged below and outside of the adjusting arm 20, and a plurality of crushing blades 22 are fixedly connected to each tool holder 21, and the plurality of crushing blades 22 are distributed in the inside of the spherical valve core 9, so that the four tool holders 21 and the plurality of crushing blades 22 can be driven to rotate, thereby crushing the impurities in the dirty liquid in the inside of the spherical valve core 9, and avoiding that the impurities in the dirty liquid block the spherical valve core 9 to cause the failure of the dirty liquid delivery.

[0035] Preferably, the inside of the adjusting arm 20 is fixedly installed with a third motor 23, the output end of the third motor 23 is fixedly connected with a second power shaft 24, the outer wall of the second power shaft 24 is fixedly connected with a first bevel gear 25, the outside of the first bevel gear 25 is meshingly provided with a second bevel gear 26, the inside of the second bevel gear 26 is fixedly connected with a trapezoidal lead screw 27, the outer wall of the adjusting arm 20 is fixedly connected with a mounting box 28, and the trapezoidal lead screw 27 is rotatably connected with the mounting box 28; the outside of the trapezoidal lead screw 27 is provided with a lead screw nut 38, the outside of the lead screw nut 38 is provided with a moving seat 39, the outer wall of the moving seat 39 is fixedly connected with a connecting rod 40, and one end of the connecting rod 40 is fixedly connected with the tool holder 21.

[0036] In this embodiment, the third motor 23 fixedly installed inside the adjusting arm 20 is started, and the output end of the third motor 23 can drive the second power shaft 24 to rotate. Because the second power shaft 24 is fixedly connected to the first bevel gear 25, the outer side of the first bevel gear 25 is meshed with a second bevel gear 26, and the inner side of the second bevel gear 26 is fixedly connected to a trapezoidal screw 27, which can drive the trapezoidal screw 27 to rotate. Under the action of the screw nut 38, the movable seat 39 can be driven to move. Because the movable seat 39 is fixedly connected to the connecting rod 40, and the connecting rod 40 is fixedly connected to the tool holder 21, it can drive two of the tool holders 21 corresponding to the flow pipes to move outward, and then the second motor 17 drives the tool holder 21 and multiple crushing blades 22 to swing slightly left and right, which can crush the blocking impurities at the junction of the pipe and the valve core and expand the crushing range of the crushing blade 22.

[0037] Preferably, a rotary joint 18 is provided between the second motor 17 and the adjusting arm 20 .

[0038] In this embodiment, the rotary joint 18 can prevent the wires of the third motor 23 inside the adjusting arm 20 from being entangled when the second motor 17 drives the adjusting arm 20 to rotate, thereby improving the operating performance of the third motor 23 .

[0039] Preferably, an installation groove 30 is opened on the inner side of the installation box 28, and an electromagnet 31 is fixedly installed inside the installation groove 30; the outer wall of the movable seat 39 is fixedly connected to the connecting block 29, and the outer wall of the connecting block 29 is fixedly connected to the sliding rod 34, and a sleeve 33 is provided on the outer side of the sliding rod 34, and the sliding rod 34 is slidably connected to the sleeve 33, and one end of the sleeve 33 is fixedly connected to the metal block 32, and the electromagnet 31 corresponds to the metal block 32 in position.

[0040] Preferably, a compression spring 35 is provided between the sleeve 33 and the connecting block 29 .

[0041] In this embodiment, the electromagnet 31 fixes the metal block 32 through electromagnetic adsorption. At this time, the movable seat 39 will drive the connecting block 29 fixed on the top to move during the movement. Because the sleeve 33 is fixedly connected to the metal block 32, the metal block 32 is adsorbed and fixed by the electromagnet 31, so the sliding rod 34 will slide toward the inside of the sleeve 33 and the compression spring 35 will be deformed and compressed. Under the action of the resistance of the compression spring 35, the movement distance of the two tool holders 21 that do not extend outward is smaller than the two tool holders 21 extending outward, thereby preventing the two tool holders 21 that do not correspond to the two circulation channels from colliding with the spherical valve core 9 and causing damage.

[0042] Preferably, a guide groove 36 is opened on the inner side of the installation box 28 , and a sliding plate 37 is fixedly connected to the outer wall of the metal block 32 , and the sliding plate 37 is slidably connected to the guide groove 36 .

[0043] In this embodiment, when the electromagnet 31 is not powered to magnetically attract and fix the metal block 32, the moving seat 39 will drive the sliding plate 37 fixedly connected to the outer wall of the metal block 32 to slide in the guide groove 36 during movement, thereby playing a limiting and guiding role.

[0044] Working principle: Step one: When the ball valve core 9 is blocked by the impurities in the sewage, the first motor 5 can be started, the output end of the first motor 5 drives the worm 6 to rotate, the worm 6 is meshed with the worm gear 7 on the outside, the worm gear 7 is fixedly connected with the valve rod 8, the valve rod 8 is fixedly connected with the ball valve core 9, and then the ball valve core 9 is driven to rotate through the valve rod 8, so that the second passage 14 formed on the outside of the ball valve core 9 is rotated to the position of the conveying pipe 10, the third passage 15 formed on the outside of the ball valve core 9 is rotated to the position of the shunt pipe 12, and the sewage pipe 11 is blocked by the ball valve core 9. At this time, the sewage will be conveyed to the ball valve core 9 through the conveying pipe 10, then the sewage will enter the inside of the ball valve core 9 through the second passage 14 formed on the outside of the ball valve core 9, then the sewage in the inside of the ball valve core 9 will be conveyed to the inside of the shunt pipe 12 through the third passage 15 formed on the outside of the ball valve core 9, and then the sewage will be discharged through the shunt pipe 12, at this time the sewage pipe 11 is blocked by the ball valve core 9, so that the sewage will not be discharged through the sewage pipe 11. The sewage can be discharged through the shunt pipe 12 when the sewage pipe 11 is blocked, which can avoid the backflow of the sewage and ensure the smooth discharge of the sewage, and realize the switching and distribution function of the sewage.

[0045] Step two: During the conveying of the sewage, the second motor 17 fixedly installed in the driving arm 16 can be started, the output end of the second motor 17 can drive the first power shaft 19 to rotate, because the first power shaft 19 is fixedly connected with the adjusting arm 20, four knife holders 21 are arranged on the lower side of the adjusting arm 20, a plurality of broken blades 22 are fixedly connected to each knife holder 21, and the plurality of broken blades 22 are distributed in the inside of the ball valve core 9, so as to drive the four knife holders 21 and the plurality of broken blades 22 to rotate, thereby breaking the impurities in the sewage in the inside of the ball valve core 9, avoiding that the impurities in the sewage block the ball valve core 9 and cause the failure of the sewage conveying.

[0046] Step 3: In the process of conveying the waste liquid, only two channels are open for flow. Therefore, the two blade holders 21 corresponding to the two flow channels can be selected to extend outward, thereby expanding the crushing range of the crushing blade 22. Specifically, during the process of conveying the waste liquid, the third motor 23 fixedly installed inside the regulating arm 20 can be activated. The output end of the third motor 23 can drive the second power shaft 24 to rotate. Because the second power shaft 24 is fixedly connected to the first bevel gear 25, the outer side of the first bevel gear 25 is meshed with a second bevel gear 26, and the inner side of the second bevel gear 26 is fixedly connected to a trapezoidal screw 27. This can drive the trapezoidal screw 27 to rotate, and under the action of the screw nut 38, the movable seat 39 can be driven to move. Because the movable seat 39 is fixedly connected to the connecting rod 40, and the connecting rod 40 is fixedly connected to the blade holder 21, it can drive two of the blade holders 21 corresponding to the flow channels to move outward. Then, the second motor 17 drives the blade holder 21 and the multiple crushing blades 22 to swing slightly left and right, which can break the impurities blocking the intersection of the pipeline and the valve core and expand the crushing range of the crushing blade 22.

[0047] Step 4: During the process of the two tool holders 21 corresponding to the circulation pipes extending outward, the electromagnets 31 inside the corresponding mounting boxes 28 on the inner sides of the two tool holders 21 that do not extend outward are started, so that the electromagnets 31 fix the metal block 32 through electromagnetic adsorption. At this time, the movable seat 39 will drive the connecting block 29 fixed on the top to move during the movement. Because the sleeve 33 is fixedly connected to the metal block 32, the metal block 32 is adsorbed and fixed by the electromagnet 31, so the sliding rod 34 will slide toward the inside of the sleeve 33 and the compression spring 35 will be deformed and compressed. Under the action of the resistance of the compression spring 35, the moving distance of the two tool holders 21 that do not extend outward is smaller than that of the two tool holders 21 extending outward. Therefore, the two tool holders 21 that do not correspond to the two circulation channels can be prevented from colliding with the spherical valve core 9 and causing damage.

[0048] During the process of conveying waste liquid, the present invention can select two tool holders 21 corresponding to the flow pipe and multiple crushing blades 22 thereon to extend outward to the intersection of the valve core and the pipe, and can swing the crushing blades 22 to crush the blocking impurities at the intersection.

[0049] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A sewage discharge valve for sewage treatment, comprising a valve body (1), characterized in that: One end of the valve body (1) is fixedly connected to a delivery pipe (10), a side surface of the valve body (1) is fixedly connected to a sewage discharge pipe (11), the other end of the valve body (1) is fixedly connected to a diversion pipe (12), a spherical valve core (9) is provided in the middle of the valve body (1), and a valve stem (8) is fixedly connected to the top of the spherical valve core (9); A first channel (13) is provided on the side of the spherical valve core (9) close to the delivery pipe (10), a second channel (14) is provided on the side of the spherical valve core (9) close to the sewage discharge pipe (11), a side of the spherical valve core (9) away from the delivery pipe (10) is used to block the diversion pipe (12), and a third channel (15) is provided on the side of the spherical valve core (9) away from the second channel (14); Four knife racks (21) distributed in an annular shape are provided inside the spherical valve core (9), and a plurality of crushing blades (22) are fixedly mounted on the outer wall of each knife rack (21). The crushing blades (22) can crush impurities in the dirty liquid inside the spherical valve core (9), and the corresponding two knife racks (21) can be selectively adjusted to move to the intersection of the channel and the pipeline, and the crushing blades (22) can be swung to crush the impurities blocking the intersection of the channel and the pipeline.

2. A sewage discharge valve for sewage treatment according to claim 1, characterized in that: A valve cover (2) is provided on the top of the valve body (1), and a first locking bolt (41) is threadedly connected between the valve cover (2) and the valve body (1), and the valve stem (8) is rotatably connected to the valve cover (2).

3. A sewage discharge valve for sewage treatment according to claim 2, characterized in that: The top of the valve cover (2) is fixedly connected to a drive box (3), a sealing cover (4) is provided on the top of the drive box (3), a second locking bolt (42) is connected to the inner threads of the drive box (3) and the sealing cover (4), and the upper end of the valve stem (8) is provided inside the drive box (3).

4. A sewage discharge valve for sewage treatment according to claim 3, characterized in that: A first motor (5) is fixedly installed inside the drive box (3), a worm (6) is fixedly connected to the output end of the first motor (5), a worm wheel (7) is meshedly provided on the outside of the worm wheel (6), and the worm wheel (7) is fixedly connected to the valve stem (8).

5. A sewage discharge valve for sewage treatment according to claim 1, characterized in that: The bottom of the valve stem (8) is fixedly connected to a driving arm (16), a second motor (17) is fixedly installed inside the driving arm (16), a first power shaft (19) is provided at the output end of the second motor (17), one end of the first power shaft (19) is fixedly connected to an adjusting arm (20), and the knife holder (21) and the crushing blade (22) are distributed below and outside the adjusting arm (20).

6. A sewage drain valve for sewage treatment according to claim 5, characterized in that: A third motor (23) is fixedly installed inside the regulating arm (20), an output end of the third motor (23) is fixedly connected to a second power shaft (24), an outer wall of the second power shaft (24) is fixedly connected to a first bevel gear (25), a second bevel gear (26) is meshedly provided on the outer side of the first bevel gear (25), a trapezoidal screw (27) is fixedly connected to the inner side of the second bevel gear (26), an outer wall of the regulating arm (20) is fixedly connected to a mounting box (28), and the trapezoidal screw (27) is rotatably connected to the mounting box (28); A screw nut (38) is provided on the outside of the trapezoidal screw (27), a movable seat (39) is provided on the outside of the screw nut (38), a connecting rod (40) is fixedly connected to the outer wall of the movable seat (39), and one end of the connecting rod (40) is fixedly connected to the tool holder (21).

7. A sewage discharge valve for sewage treatment according to claim 5, characterized in that: A rotary joint (18) is provided between the second motor (17) and the regulating arm (20).

8. The sewage discharge valve for sewage treatment according to claim 6, characterized in that: An installation slot (30) is provided on the inner side of the installation box (28), and an electromagnet (31) is fixedly installed inside the installation slot (30); The outer wall of the movable seat (39) is fixedly connected to a connecting block (29), the outer wall of the connecting block (29) is fixedly connected to a sliding rod (34), a sleeve (33) is provided on the outer side of the sliding rod (34), the sliding rod (34) is slidably connected to the sleeve (33), one end of the sleeve (33) is fixedly connected to a metal block (32), and the electromagnet (31) corresponds to the position of the metal block (32).

9. A sewage discharge valve for sewage treatment according to claim 8, characterized in that: A compression spring (35) is provided between the sleeve (33) and the connecting block (29).

10. The sewage discharge valve for sewage treatment according to claim 8, characterized in that: A guide groove (36) is provided on the inner side of the installation box (28), and a sliding plate (37) is fixedly connected to the outer wall of the metal block (32), and the sliding plate (37) is slidably connected to the guide groove (36).

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