An externally drained self-cleaning valve mechanism

Abstract

The present invention relates to the technical field of valves, and specifically relates to an externally sewage-discharging self-cleaning valve mechanism, which includes a spherical shell, and a sphere is arranged inside the spherical shell. It further includes a cleaning mechanism, which includes an engagement ring and a scraper. The scrapers are arranged in an annular array inside the engagement ring and are in contact with the inner wall of the sphere; a moving mechanism is arranged at the bottom of the cleaning mechanism, which includes a plug rod and a toothed groove plate. The toothed groove plate is fixedly installed at the top of the plug rod and meshes with the engagement ring; the moving mechanism is configured such that when the plug rod drives the toothed groove plate to slide, the scraper is driven to rotate by the meshing action between the toothed groove plate and the engagement ring, so as to clean the inside of the sphere. The present invention adopts the design of the moving mechanism and the cleaning mechanism. When the valve is in the open state, by grasping the grip rod and rotating it reciprocally in the horizontal direction of the grip rod, the triangular ring rotates to drive the scraper to reciprocally scrape and wash the channel inside the sphere, with simple operation and good cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and more specifically, to an externally sewage-discharging self-cleaning valve mechanism. Background Art

[0002] An externally sewage-discharging self-cleaning valve is a valve specifically designed for treating wastewater in sewage systems or other liquid pipelines. The valve has a cleaning function and can remove blockages or dirt regularly or as needed to keep the pipeline unobstructed. These valves usually adopt special designs and materials to ensure that they will not be blocked or damaged by dirt during use. Externally sewage-discharging self-cleaning valves usually use fluid pressure or other mechanical means to remove dirt inside the valve and discharge it from the pipeline system. They are widely used in sewage treatment, industrial production, and other liquid treatment fields to ensure the stable operation and long-term reliability of the pipeline system.

[0003] The Chinese patent with the publication number CN113374885B discloses a ball valve with an automatic cleaning function. In the present invention, the water inlet pipe and the water outlet pipe are respectively externally connected to water pipes through bolts. Turning the runner in reverse causes the opening and closing spherical shell to reverse and stop the valve cavity shell from being limited. And the water is discharged into the water inlet pipe and then discharged from the water outlet pipe. Due to the flow of water, the spiral blade starts to rotate, and the rotating shaft drives the sponge brush to rotate to clean the water outlet pipe.

[0004] The Chinese patent with the publication number CN116329212B discloses a self-cleaning regulating ball valve and its usage method. Inside the valve core, there is a first cleaning mechanism for cleaning the inner wall of the valve core. On the inner wall of the water pipe, a second cleaning mechanism for cleaning the impurities on the inner wall of the water pipe and the first cleaning mechanism is rotatably installed. During the rotation and translation of the cleaning brush, the inside of the water pipe and the connection between the water pipe and the valve core are sequentially assisted in scraping and cleaning.

[0005] In the prior art, when the valve is in the closed state, the sewage is communicated with the water inlet end of the valve, and the dirt in the sewage will contact the inner wall of the water inlet end of the valve. The dirt is easy to adhere to the inner wall surface. When the valve is just closed, part of the sewage will stay in the passage of the valve core. As the sewage in the valve core passage dries up, the dirt will adhere more stubbornly. When cleaning the valve, it is necessary to disassemble the valve for cleaning, which is complex in operation and low in work efficiency. The above-mentioned and similar prior arts can, to a certain extent, solve the cleaning of the dirt inside the valve, but the main components of the cleaning mechanism in the prior art are arranged inside the valve core. When the valve is used for sewage discharge, there is more dirt passing through the inside of the valve core, and the dirt is easy to adhere to the surface of the cleaning mechanism, reducing the cleaning efficiency.

[0006] Therefore, the present invention provides an externally sewage-discharging self-cleaning valve mechanism that can clean the passage of the valve core when the valve is in the working state, and the main cleaning structure is arranged in the valve body shell. Summary of the Invention

[0007] In view of the problems in the prior art that the valve needs to be disassembled for cleaning, the operation is complex, and the work efficiency is low, an externally drained self-cleaning valve mechanism is designed.

[0008] The technical solution adopted by the present invention to solve its technical problems is: an externally drained self-cleaning valve mechanism, including a spherical shell, a sphere is arranged inside the spherical shell, and a cleaning mechanism is further included, which includes an engaging ring and a scraper. The scrapers are arranged in an annular array on the inner side of the engaging ring and are in contact with the inner wall of the sphere; a moving mechanism is arranged at the bottom of the cleaning mechanism, which includes a plug rod and a toothed groove plate. The toothed groove plate is fixedly installed at the top of the plug rod and meshes with the engaging ring; the moving mechanism is configured to drive the scraper to rotate by using the meshing action between the toothed groove plate and the engaging ring when driving the toothed groove plate to slide through the plug rod, so as to clean the inner side of the sphere.

[0009] Furthermore, a water inlet valve is fixedly installed on one side of the spherical shell, a water outlet valve is fixedly installed on the other side of the spherical shell, a valve rod is installed through the top of the spherical shell through a bearing, a valve ring is fixedly installed on the outer side of the valve rod, and a sealing seat is installed at the connection position between the inner side of the spherical shell and the water inlet valve and the water outlet valve, and the sealing seat is in contact with the surface of the sphere.

[0010] Furthermore, the cleaning mechanism further includes an annular groove, and the annular groove is opened on the inner side of the sphere. A plurality of limiting blocks are fixedly installed on the inner walls of both sides of the annular groove, and two sealing grooves are opened on the inner walls of both sides of the annular groove, and the sealing grooves are respectively located on both sides of the limiting blocks.

[0011] Furthermore, limiting grooves are respectively opened on both sides of the engaging ring, and the limiting grooves are located outside the limiting blocks. Two other sealing grooves are respectively opened on both sides of the engaging ring, and sealing rings are installed between the sealing grooves on the inner wall of the engaging ring and the sealing grooves on the inner wall of the annular groove. A plurality of short rods are fixedly installed on the outer side of the engaging ring, and a triangular ring is fixedly installed on the inner side of the engaging ring. The cross section of the triangular ring is a triangular ring, and the triangular ring is fixedly connected with the scraper.

[0012] Furthermore, the moving mechanism further includes a sleeve, and the sleeve is fixedly installed inside the spherical shell. A through groove is opened through the top of the sleeve, and the through groove communicates with the inner side of the spherical shell. The through groove penetrates through one side of the spherical shell. A return spring is fixedly installed on the inner wall of one side of the sleeve, and the other end of the return spring is fixedly installed at one end of the plug rod. The other end of the plug rod is fixedly installed with a grip rod, and the part of the grip rod that can be held is located outside the sleeve.

[0013] Further, a brushing component is arranged on the inner side of the spherical shell. The brushing component is assembled to clean the outer side of the sphere; a rotating mechanism is arranged on the inner side of the spherical shell near the water inlet valve. The rotating mechanism is assembled to transmit the force of the moving mechanism to the brushing component so as to drive the brushing component to rotate and clean; a cleaning component is arranged on the spherical shell. The cleaning component is assembled to clean the components in the rotating mechanism.

[0014] Further, the rotating mechanism includes two arc plates, and the two arc plates are fixedly installed on the front and back of the spherical shell. One side of the arc plate is fixedly installed on the outer side of the sleeve. The sides of the two arc plates away from each other are parallel to the two ends of the sleeve. An arc groove is opened inside the arc plate, and the arc groove penetrates through one side of the sleeve and communicates with the inner side of the sleeve. A bent plate is fixedly installed on one side of the inserting rod. The bent plate penetrates through the inside of the arc groove. A straight tooth plate is fixedly installed at one end of the bent plate. A rotating groove is opened on the inner side of the spherical shell, and the rotating groove communicates with the arc groove. An external tooth ring is fixedly installed in the rotating groove through two bearings in a rolling manner. A vortex generator is fixedly installed on the inner side of the external tooth ring.

[0015] Further, the brushing component includes a plurality of fixing plates, and the fixing plates are fixedly installed inside the vortex generator through bolts. A cross plate is fixedly installed on one side of the fixing plate. A scraping ring is fixedly installed on one side of the cross plate. Brush hairs are arranged on the outer side and the side close to the sphere of the scraping ring. Brush hairs are arranged on the side of the cross plate far from the central position, and the brush hairs on one side of the cross plate are in contact with the surface of the sealing seat.

[0016] Further, the cleaning component includes a plurality of column grooves. The column grooves are opened on the inner side of the spherical shell and are located on the side of the vortex generator away from the cross plate. A torsion spring is fixedly installed on the inner wall of the column groove. The other end of the torsion spring is fixedly installed on a rotating rod. The thinner end of the rotating rod penetrates through the inside of the column groove through a bearing. The thicker end of the rotating rod is located outside the column groove. A blade brush is fixedly installed on the side of the column groove close to the vortex generator. The blade brush is in contact with the surface of the blades of the vortex generator.

[0017] Advantages of the present invention:

[0018] (1) For the external sewage discharge type self-cleaning valve mechanism of the present invention, the designs of the moving mechanism and the cleaning mechanism are adopted. When the valve is in the open state, by grasping the grip rod and reciprocally rotating it in the horizontal direction of the grip rod, the inserting rod drives the tooth groove plate to reciprocate. By using the meshing action between the tooth groove plate and the meshing ring, the meshing ring is driven to rotate reciprocally by 90°. The meshing ring drives the scraping plate to reciprocally scrape and wash the channel inside the sphere through the triangular ring. The operation is simple and the cleaning effect is good. At the same time, the cleaning components in the sphere channel are only the triangular ring and the scraping plate. The structure is small and the contact area with the sewage is small, reducing the attachment of dirt.

[0019] (2) In the external sewage discharge type self-cleaning valve mechanism of the present invention, a rotating assembly is adopted to link the brush sweeping assembly with the insertion rod. When grasping the grip rod and reciprocating, the cross plate and the scraping ring are driven to clean the connection parts of the spherical shell, the sphere and the sealing seat, preventing dirt from accumulating at the connection parts, penetrating and corroding the gaps at the connection parts. And by setting a vortex generator, when sewage passes through, vortices are generated, so that the sewage flushes the sides of the cross plate and the scraper at a certain angle, reducing the adhesion of dirt on the surfaces of the cross plate and the scraper.

[0020] (3) In the external sewage discharge type self-cleaning valve mechanism of the present invention, through the cooperation of a torsion spring and a blade brush, the blade brush can rotate left and right and has a resilience, so that when the vortex generator rotates, it can rub against the blade brush, and the two clean each other, reducing the adhesion of dirt on the surface of the components. Combining the above effects, there will be no dirt residue on the surface of the components in the valve passage, improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the drawings and embodiments.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the valve of the present invention;

[0023] Figure 2 It is a sectional three-dimensional structural schematic diagram of the valve of the present invention;

[0024] Figure 3 For the present invention Figure 2 of the partial enlarged structural schematic diagram;

[0025] Figure 4 It is a sectional structural schematic diagram of the valve of the present invention;

[0026] Figure 5 It is a sectional three-dimensional structural schematic diagram of the valve body of the present invention;

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the engagement ring of the present invention;

[0028] Figure 7 It is a three-dimensional structural schematic diagram of the insertion rod of the present invention;

[0029] Figure 8 It is a three-dimensional structural schematic diagram of the external gear ring of the present invention;

[0030] Figure 9 It is a three-dimensional structural schematic diagram of the cross plate of the present invention;

[0031] Figure 10 It is a three-dimensional schematic diagram of the blade brush of the present invention.

[0032] In the figure: 11, spherical shell; 12, inlet valve; 13, outlet valve; 14, valve stem; 15, valve ring; 16, sealing seat; 17, sphere; 2, cleaning mechanism; 21, annular groove; 22, limit block; 23, sealing groove; 24, meshing ring; 25, limit groove; 26, sealing ring; 27, triangular ring; 28, scraper; 3, moving mechanism; 31, sleeve; 32, through groove; 33, return spring; 34, inserting rod; 35, toothed groove plate; 36, grip rod; 4, rotating mechanism; 41, arc plate; 42, arc groove; 43, bent plate; 44, straight toothed plate; 45, rotating groove; 46, external toothed ring; 47, vortex generator; 5, brushing assembly; 51, cross plate; 52, fixing plate; 53, scraping ring; 54, bristles; 6, cleaning assembly; 61, columnar groove; 62, torsion spring; 63, rotating rod; 64, blade brush. Detailed implementation manners

[0033] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners. Embodiment

[0034] As Figures 1-10 shown, an externally sewage-discharging self-cleaning valve mechanism of the present invention includes a spherical shell 11. A sphere 17 is arranged inside the spherical shell 11. An inlet valve 12 is fixedly installed on one side of the spherical shell 11, and an outlet valve 13 is fixedly installed on the other side of the spherical shell 11. A valve stem 14 is installed through the top of the spherical shell 11 by means of a bearing. A valve ring 15 is fixedly installed on the outer side of the valve stem 14. A sealing seat 16 is installed at the connection position between the inner side of the spherical shell 11 and the inlet valve 12 and the outlet valve 13, and the sealing seat 16 is in contact with the surface of the sphere 17.

[0035] Specifically, the inlet valve 12 is connected to an external sewage inlet pipe, the outlet valve 13 is connected to a sewage outlet pipe. The spherical shell 11 is of a hollow structure, providing a moving space for the sphere 17. A columnar channel is axially opened in the center of the sphere 17, providing a flow channel for the sewage flow. The sealing seat 16 can ensure the sealing between the spherical shell 11 and the sphere 17, preventing sewage leakage, and at the same time can ensure the normal rotation of the sphere 17. The valve stem 14 can freely rotate under the action of the bearing, facilitating the control of the movement state of the sphere 17 from the outside of the spherical shell 11.

[0036] In this embodiment, the cleaning mechanism 2 includes an engagement ring 24 and a scraper 28. The scraper 28 is arranged in an annular array on the inner side of the engagement ring 24 and contacts the inner wall of the sphere 17. The cleaning mechanism 2 further includes an annular groove 21, which is opened on the inner side of the sphere 17. A plurality of limiting blocks 22 are fixedly installed on the inner walls on both sides of the annular groove 21. Two sealing grooves 23 are opened on the inner walls on both sides of the annular groove 21, and the sealing grooves 23 are respectively located on both sides of the limiting block 22. Limiting grooves 25 are respectively opened on both sides of the engagement ring 24, and the limiting grooves 25 are located outside the limiting block 22. Another two sealing grooves 23 are respectively opened on both sides of the engagement ring 24, and a sealing ring 26 is installed between the sealing groove 23 on the inner wall of the engagement ring 24 and the sealing groove 23 on the inner wall of the annular groove 21. A plurality of short rods are fixedly installed on the outer side of the engagement ring 24. A triangular ring 27 is fixedly installed on the inner side of the engagement ring 24. The cross section of the triangular ring 27 is a triangular ring. The triangular ring 27 is fixedly connected to the scraper 28.

[0037] Specifically, the sphere 17 can provide a space for opening the annular groove 21. The annular groove 21 can provide a placement space for the limiting block 22. The annular groove 21 can provide a rotation space for the engagement ring 24. Two semi-circular sealing grooves 23 are opened on the inner side of the annular groove 21 and on both sides of the engagement ring 24, so that the sealing grooves 23 can provide a placement space for the sealing ring 26. The sealing ring 26 can provide a sealing function between the annular groove 21 and the engagement ring 24. The engagement ring 24 can provide a space for opening the limiting groove 25. The cooperation between the limiting groove 25 and the limiting block 22 can provide a limiting function for the rotation of the engagement ring 24 to prevent the engagement ring 24 from shifting during rotation. The engagement ring 24 can provide a stable support for the triangular ring 27. The structure of the triangular ring 27 can provide a stable support for the scraper 28. At the same time, the area of the triangular ring 27 exposed in the channel of the sphere 17 is small, reducing the adhesion of dirt. The scraper 28 is set to four. When the engagement ring 24 drives the scraper 28 to rotate 90°, the four scrapers 28 can completely scrape and wash the channel inside the sphere 17.

[0038] In this embodiment, the movable mechanism 3 is arranged at the bottom of the cleaning mechanism 2. It includes a plug rod 34 and a toothed groove plate 35. The toothed groove plate 35 is fixedly installed at the top of the plug rod 34 and meshes with the meshing ring 24. The movable mechanism 3 further includes a sleeve 31, and the sleeve 31 is fixedly installed inside the spherical shell 11. A through groove 32 is formed through the top of the sleeve 31, and the through groove 32 communicates with the inner side of the spherical shell 11. The through groove 32 penetrates through one side of the spherical shell 11. A return spring 33 is fixedly installed on the inner wall of one side of the sleeve 31, and the other end of the return spring 33 is fixedly installed at one end of the plug rod 34. The other end of the plug rod 34 is fixedly installed with a grip rod 36, and the part of the grip rod 36 that can be held is located outside the sleeve 31. The movable mechanism 3 is assembled such that when the plug rod 34 drives the toothed groove plate 35 to slide, the toothed groove plate 35 drives the scraper 28 to rotate by the meshing action with the meshing ring 24, so as to clean the inner side of the sphere 17.

[0039] Specifically, the sleeve 31 can provide a moving space for the return spring 33 and the plug rod 34. The sleeve 31 can provide a space for the through groove 32 to be formed. The through groove 32 can provide a moving space for the toothed groove plate 35, facilitating the plug rod 34 to drive the toothed groove plate 35 to move along the inner side of the through groove 32. The toothed groove plate 35 can provide a groove for meshing with the meshing ring 24, enabling the toothed groove plate 35 to engage with the meshing ring 24 and drive the meshing ring 24 to rotate. The grip rod 36 can provide a grasping support for the external staff, facilitating the staff to drive the plug rod 34 to move. The return spring 33 can provide a reset function for the plug rod 34, so that after the external force is removed from the grip rod 36, the return spring 33 drives the movable mechanism 3 to reset to the initial state.

[0040] In this embodiment, a brush sweeping assembly 5 is arranged inside the spherical shell 11. The brush sweeping assembly 5 is assembled to clean the outer side of the sphere 17. The brush sweeping assembly 5 includes a plurality of fixing plates 52, and the fixing plates 52 are fixedly installed inside the vortex generator 47 by bolts. A cross plate 51 is fixedly installed on one side of the fixing plate 52. A scraping ring 53 is fixedly installed on one side of the cross plate 51. Brush hairs 54 are arranged on the outer side and the side close to the sphere 17 of the scraping ring 53. Brush hairs 54 are arranged on the side of the cross plate 51 far from the central position, and the brush hairs 54 on one side of the cross plate 51 are in contact with the surface of the sealing seat 16.

[0041] Specifically, the fixing plate 52 can be conveniently fixed to the inner side of the external gear ring 46 through bolts, so that the cross plate 51 is fixed to one side of the external gear ring 46 through the fixing plate 52. The cross plate 51 and the scraping ring 53 can provide stable support for the bristles 54. The bristles 54 on the side of the scraping ring 53 close to the sphere 17 are used to clean the surface of the sphere 17. When the sphere 17 rotates, the dirt on the surface of the sphere 17 is cleaned by using the relative movement between the two. The bristles 54 on the outer side of the scraping ring 53 and on the cross plate 51 can clean the inner wall near the sealing seat 16. When the scraping ring 53 and the cross plate 51 rotate, the scraping ring 53 and the bristles 54 clean the inner wall, which is convenient to clean the connection between the sealing seat 16, the sphere 17 and the spherical shell 11, preventing dirt from accumulating near the sealing seat 16 and entering the gap, thus damaging the sealing performance of the valve and the smooth rotation of the sphere 17.

[0042] In this embodiment, a rotating mechanism 4 is arranged on the inner side of the spherical shell 11 close to the water inlet valve 12. The rotating mechanism 4 is assembled to transmit the force of the moving mechanism 3 to the brush sweeping assembly 5, so as to drive the brush sweeping assembly 5 to rotate and sweep. The rotating mechanism 4 includes two arc plates 41, and the two arc plates 41 are fixedly installed on the front and back of the spherical shell 11. One side of the arc plate 41 is fixedly installed on the outer side of the sleeve 31. The sides of the two arc plates 41 away from each other are parallel to the two ends of the sleeve 31. An arc groove 42 is formed inside the arc plate 41, and the arc groove 42 penetrates through one side of the sleeve 31 and communicates with the inner side of the sleeve 31. A bent plate 43 is fixedly installed on one side of the inserting rod 34, and the bent plate 43 penetrates through the inside of the arc groove 42. One end of the bent plate 43 is fixedly installed with a straight tooth plate 44. A rotating groove 45 is formed inside the spherical shell 11, and the rotating groove 45 communicates with the arc groove 42. An external gear ring 46 is fixedly installed in the rotating groove 45 through two bearings in a rolling manner, and a vortex generator 47 is fixedly installed on the inner side of the external gear ring 46.

[0043] Specifically, the spherical shell 11 can provide a space for the formation of the rotating groove 45, the rotating groove 45 can provide a rotating space for the external gear ring 46, the inner side of the spherical shell 11 can provide an embedding space for the bearings. The two bearings are embedded on both sides of the rotating groove 45. Through the two bearings, rotational support can be provided for the external gear ring 46. The two bearings are waterproof sealed bearings to prevent sewage from leaking from the rotating groove 45. The spherical shell 11 can provide stable support for the arc plate 41, the arc plate 41 can provide a space for the formation of the arc groove 42, the arc groove 42 can provide a moving space for the bent plate 43, and at the same time, the arc groove 42 can provide a limiting effect on the movement of the bent plate 43. When the bent plate 43 moves to the inner wall of one side of the arc groove 42, the bent plate 43 cannot move further. The movement distance of the grip rod 36 and the inserting rod 34 is limited by the bent plate 43. The vortex generator 47 can change the movement state of the sewage, so that when the sewage passes through the vortex generator 47, a section of vortex water flow can be generated, and the vortex water flow can wash the surface of the cross plate 51 of the scraping plate 28 at a certain angle.

[0044] In this embodiment, the spherical shell 11 is provided with a cleaning component 6, and the cleaning component 6 is assembled to clean the components in the rotating mechanism 4. The cleaning component 6 includes a plurality of column grooves 61. The column grooves 61 are opened on the inner side of the spherical shell 11 and are located on the side of the vortex generator 47 away from the cross plate 51. A torsion spring 62 is fixedly installed on the inner wall of the column groove 61. The other end of the torsion spring 62 is fixedly installed with a rotating rod 63. The thinner end of the rotating rod 63 passes through the inside of the column groove 61 through a bearing. The thicker end of the rotating rod 63 is located outside the column groove 61. A blade brush 64 is fixedly installed on the side of the column groove 61 close to the vortex generator 47. The blade brush 64 contacts the surface of the blades of the vortex generator 47.

[0045] Specifically, the spherical shell 11 can provide a space for opening the column groove 61. The column groove 61 can provide a moving space for the torsion spring 62 and the rotating rod 63. The rotating rod 63 is composed of two cylinders with different thicknesses. The thinner end is located inside the column groove 61, which is convenient for providing a placement space for the torsion spring 62. In the normal state, the blade brush 64 faces the vortex generator 47 vertically. The torsion spring 62 can facilitate the left and right rotation of the blade brush 64 and at the same time provide a restoring elastic force for the blade brush 64. When the vortex generator 47 rotates forward, the blade brush 64 covers and contacts the surface of the blades of the vortex generator 47 to clean the vortex generator 47. When the vortex generator 47 rotates backward, one side of the blades of the vortex generator 47 forms a certain angle with the surface of the blade brush 64 to clean the surface of the blade brush 64. And due to the action of the torsion spring 62, when the two rotate, they will knock and impact, and the dirt can be vibrated off to achieve cleaning.

[0046] Working principle: The staff first fixedly connects the water inlet valve 12 with the external sewage pipe through the connecting device, so that the external sewage enters the inside of the water inlet valve 12. When the staff needs to open the valve, hold the valve ring 15 and rotate it counterclockwise, so that the valve ring 15 drives the sphere 17 to rotate through the valve rod 14. The relative movement generated by the rotation of the sphere 17 through the contact with the scraping ring 53 enables the bristles 54 on the scraping ring 53 to brush the surface of the sphere 17 and clean the surface of the sphere 17 in contact with the sewage.

[0047] After rotating the valve ring 15 counterclockwise by 90°, the sphere 17 drives the engaging ring 24 to rotate by 90°, so that the short rod on the outside of the engaging ring 24 rotates into the tooth groove inside the tooth groove plate 35. At this time, the inside of the sphere 17 communicates with the water inlet valve 12 and the water outlet valve 13, so that the sewage flows from the water inlet valve 12 through the sphere 17 and the water outlet valve 13 to the outside, as Figure 2 shown;

[0048] Subsequently, the staff first grabs the grip rod 36 and moves it away from the spherical shell 11, causing the grip rod 36 to drive the insertion rod 34 to move along the inner side of the sleeve 31. The insertion rod 34 drives the tooth groove plate 35 to move along the inner side of the through groove 32. The movement of the tooth groove plate 35 meshes with the short rod on the outer side of the engagement ring 24, thereby driving the engagement ring 24 to rotate forward. The engagement ring 24 is prevented from displacement by the limiting action of the limiting groove 25 and the limiting block 22. The engagement ring 24 drives the scraper 28 to rotate forward through the triangular ring 27, so that the scraper 28 scrapes and washes the dirt attached to the inner side of the sphere 17. When the insertion rod 34 moves, it drives the bent plate 43 to move, causing the bent plate 43 to move along the inner side of the arc groove 42. When the bent plate 43 moves to contact the inner wall of one side of the arc groove 42, it is the maximum distance that the insertion rod 34 can move. At this time, the insertion rod 34 drives the engagement ring 24 to rotate forward 90° through the tooth groove plate 35, and the four scrapers 28 rotate forward 90° at the same time to comprehensively scrape and wash the inner side of the sphere 17;

[0049] After that, the staff reduces the force applied to the grip rod 36, causing the insertion rod 34 to drive the insertion rod 34 to move towards the inner side of the sleeve under the elastic force of the return spring 33. The insertion rod 34 drives the engagement ring 24 to rotate backward 90° through the tooth groove plate 35, and once again drives the scraper 28 to scrape and wash the inner side of the sphere 17. Grab the grip rod 36 and perform reciprocating motion, and drive the scraper 28 to rotate forward and backward multiple times through the reciprocating motion to scrape and wash the inner side of the sphere 17 clean;

[0050] When the grip rod 36 performs reciprocating motion, the insertion rod 34 drives the straight tooth plate 44 to move through the bent plate 43, causing the straight tooth plate 44 to drive the outer tooth ring 46 to rotate forward and backward reciprocally by using the meshing action with the outer tooth ring 46. The outer tooth ring 46 drives the cross plate 51 and the scraping ring 53 to rotate forward and backward reciprocally together. The bristles 54 of the cross plate 51 and the scraping ring 53 brush the surface of the bearing seat;

[0051] When the external gear ring 46 rotates forward, it can drive the vortex generator 47 to rotate. When the sewage passes through the vortex generator 47, the water flow direction can be changed under the guiding action of the vortex generator 47 to generate a vortex, so that the sewage flushes the sides of the cross plate 51 and the scraper 28 at a certain angle, and the dirt attached to the surfaces of the cross plate 51 and the scraper 28 is washed off. When the vortex generator 47 rotates forward, the blades of the vortex generator 47 contact the blade brush 64, and the blade brush 64 cleans the dirt on the surface of the blades of the vortex generator 47. The vortex generator 47 drives the blade brush 64 to rotate around the rotating rod 63. When the blade brush 64 separates from one blade of the vortex generator 47, the torsion spring 62 drives the blade brush 64 to rotate and contact the surface of the adjacent other blade, so that all the blades of the vortex generator 47 can be cleaned. When the vortex generator 47 rotates reversely, one side of the blade of the vortex generator 47 can clean the surface of the blade brush 64 by contacting the surface of the blade brush 64, so that the vortex generator 47 and the blade brush 64 can clean each other.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An external sewage discharge type self-cleaning valve mechanism, comprising a ball shell (11), wherein a ball (17) is arranged inside the ball shell (11), characterized in that: It also includes a cleaning mechanism (2), which includes a meshing ring (24) and a scraper (28), wherein the scraper (28) is arranged in an annular array on the inner side of the meshing ring (24) and contacts the inner wall of the sphere (17); The movable mechanism (3) is arranged at the bottom of the cleaning mechanism (2), and comprises an insertion rod (34) and a toothed plate (35), wherein the toothed plate (35) is fixedly mounted on the top of the insertion rod (34) and meshes with the meshing ring (24); The movable mechanism (3) is configured to drive the toothed plate (35) to slide by means of the insertion rod (34), and to drive the scraper (28) to rotate by means of the meshing action between the toothed plate (35) and the meshing ring (24), so as to clean the inner side of the ball (17); A water inlet valve (12) is fixedly mounted on one side of the spherical shell (11); a rotating mechanism (4) is provided on the inner side of the spherical shell (11) close to the water inlet valve (12); the rotating mechanism (4) is configured to transmit the force of the movable mechanism (3) to the brush-sweeping assembly (5) so as to drive the brush-sweeping assembly (5) to perform rotational cleaning; the spherical shell (11) is provided with a cleaning assembly (6); the cleaning assembly (6) is configured to clean the components in the rotating mechanism (4); The rotating mechanism (4) comprises two arc plates (41), and the two arc plates (41) are fixedly mounted on the front and back sides of the spherical shell (11), one side of the arc plate (41) is fixedly mounted on the outside of the sleeve (31), the sides of the two arc plates (41) that are away from each other are parallel to the two ends of the sleeve (31), an arc groove (42) is formed inside the arc plate (41), and the arc groove (42) passes through one side of the sleeve (31) and communicates with the inner side of the sleeve (31), and the insertion rod (31) is fixedly mounted on the outside of the sleeve (31). 4), a bent plate (43) is fixedly mounted on one side of the spherical shell (11), the bent plate (43) penetrates the inner side of the arc groove (42), a straight tooth plate (44) is fixedly mounted on one end of the bent plate (43), a rotating groove (45) is opened on the inner side of the spherical shell (11), and the rotating groove (45) is communicated with the arc groove (42), an outer tooth ring (46) is fixedly mounted on the inner side of the rotating groove (45) via two bearings for rolling, and a vortex generator (47) is fixedly mounted on the inner side of the outer tooth ring (46); The cleaning assembly (6) comprises a plurality of column grooves (61), wherein the column grooves (61) are formed on the inner side of the spherical shell (11) and are located on a side of the vortex generator (47) away from the cross plate (51). A torsion spring (62) is fixedly mounted on the inner wall of the column groove (61), and a rotating rod (63) is fixedly mounted on the other end of the torsion spring (62). The thinner end of the rotating rod (63) passes through a bearing and is located on the inner side of the column groove (61), and the thicker end of the rotating rod (63) is located on the outer side of the column groove (61). A blade brush (64) is fixedly mounted on a side of the column groove (61) close to the vortex generator (47), and the blade brush (64) contacts the blade surface of the vortex generator (47).

2. The external sewage discharge self-cleaning valve mechanism according to claim 1, characterized in that: A water outlet valve (13) is fixedly mounted on the other side of the spherical shell (11); a valve stem (14) is installed on the top of the spherical shell (11) through a bearing; a valve ring (15) is fixedly mounted on the outside of the valve stem (14); a sealing seat (16) is installed on the inside of the spherical shell (11) at the connection position between the water inlet valve (12) and the water outlet valve (13); and the sealing seat (16) is in contact with the surface of the sphere (17).

3. The external sewage discharge self-cleaning valve mechanism according to claim 1, characterized in that: The cleaning mechanism (2) further comprises an annular groove (21), and the annular groove (21) is formed on the inner side of the spherical body (17), a plurality of limit blocks (22) are fixedly mounted on the inner walls on both sides of the annular groove (21), and two sealing grooves (23) are formed on the inner walls on both sides of the annular groove (21), and the sealing grooves (23) are respectively located on both sides of the limit blocks (22).

4. The external sewage discharge self-cleaning valve mechanism according to claim 1, characterized in that: The meshing ring (24) is provided with limit grooves (25) on both sides, and the limit grooves (25) are located outside the limit blocks (22). Two other sealing grooves (23) are provided on both sides of the meshing ring (24), and a sealing ring (26) is installed between the sealing groove (23) of the meshing ring (24) and the sealing groove (23) on the inner wall of the ring groove (21). A plurality of short rods are fixedly installed on the outer side of the meshing ring (24), and a triangular ring (27) is fixedly installed on the inner side of the meshing ring (24). The triangular ring (27) is a ring with a triangular cross section, and the triangular ring (27) is fixedly connected to the scraper (28).

5. The external sewage discharge self-cleaning valve mechanism according to claim 1, characterized in that: The movable mechanism (3) further comprises a sleeve (31), and the sleeve (31) is fixedly mounted inside the ball shell (11), a through groove (32) is formed through the top of the sleeve (31), and the through groove (32) is communicated with the inner side of the ball shell (11), and the through groove (32) passes through one side of the ball shell (11), a return spring (33) is fixedly mounted on the inner wall of one side of the sleeve (31), the other end of the return spring (33) is fixedly mounted on one end of the insertion rod (34), and a gripping rod (36) is fixedly mounted on the other end of the insertion rod (34), and the grippable portion of the gripping rod (36) is located outside the sleeve (31).

6. The external sewage discharge self-cleaning valve mechanism according to claim 5, characterized in that: A brush sweeping assembly (5) is provided on the inner side of the ball shell (11), and the brush sweeping assembly (5) is configured to clean the outer side of the ball (17).

7. The external sewage discharge self-cleaning valve mechanism according to claim 6, characterized in that: The brush sweeping assembly (5) comprises a plurality of fixed plates (52), and the fixed plates (52) are fixedly mounted on the inner side of the vortex generator (47) by means of bolts; a cross plate (51) is fixedly mounted on one side of the fixed plate (52); a scraper ring (53) is fixedly mounted on one side of the cross plate (51); bristles (54) are arranged on the outer side of the scraper ring (53) and on a side close to the sphere (17); bristles (54) are arranged on a side of the cross plate (51) away from the center, and the bristles (54) on one side of the cross plate (51) are in contact with the surface of the sealing seat (16).

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