A sewage pipe for sewage treatment

Abstract

The present invention relates to the field of sewage treatment, and specifically to a sewage discharge pipe for sewage treatment, the sewage discharge pipe for sewage treatment comprises a drain pipe, a sewage collecting pipe, a main valve assembly, a secondary valve assembly, and a control assembly, wherein the drain pipe is vertically installed; the main valve assembly is installed at the water inlet end of the drain pipe, and a water inlet is defined at the center of the drain pipe; the sewage collecting pipe is connected to the inside of the drain pipe; the secondary valve assembly is installed at the feed end of the sewage collecting pipe, and a sewage discharge port is defined at the center of the sewage collecting pipe; an associated assembly is arranged between the main valve assembly and the secondary valve assembly, the associated assembly closes the sewage discharge port when the water inlet is opened, and opens the water inlet when the sewage discharge port is closed; the control assembly is blocked in the drain pipe, and the water inlet is closed when the accumulated weight of the water flow increases to a first preset value, and the drain pipe is unblocked, and the sewage discharge port is closed when the water flow weight decreases to a second preset value, so that when the drain pipe is blocked, the blockage is cleaned to the sewage collecting pipe, so that the inside of the drain pipe is self-cleaned, and the cleaning difficulty is reduced.

Description

Technical Field

[0001] The invention relates to the field of sewage treatment, and in particular to a sewage discharge pipe for sewage treatment. Background Art

[0002] A large amount of sewage is often generated in industrial production and daily life. After being collected, the sewage needs to be discharged to a designated location. Since sewage often contains a large amount of impurities, it is easy to clog the pipes during the discharge process. Therefore, a filter is usually installed at the water inlet end of the pipe to reduce the amount of impurities entering the pipe. However, some impurities will still enter the pipe through the filter and cause pipe blockage after long-term accumulation. In addition, the pipe distribution is complex, and it is difficult to clean the pipe when it is blocked, which affects its use. Summary of the invention

[0003] The inventors have found that by installing a filter at a location in the pipeline that is prone to clogging to further collect impurities and promptly cleaning the impurities on the filter, the frequency of clogging can be reduced and the difficulty of cleaning can be lowered.

[0004] The invention provides a sewage discharge pipe for sewage treatment, so as to solve the problem that the existing sewage collecting pipe is blocked and difficult to clean.

[0005] A sewage treatment pipe for sewage treatment of the present invention adopts the following technical solution:

[0006] A sewage pipe for sewage treatment, comprising a drain pipe, a sewage collecting pipe, a main valve assembly, a sub-valve assembly and a control assembly, wherein the drain pipe is installed vertically; the main valve assembly is installed at the water inlet end of the drain pipe, and is formed by a plurality of first valve plates surrounding the axis of the drain pipe, two adjacent first valve plates are slidably connected, and when one first valve plate moves inward or outward, all the first valve plates are driven to move inward or outward; the plurality of first valve plates define a water inlet at the center of the drain pipe, and the water inlet is closed when all the first valve plates move inward to a first preset position, and When all the first valve plates move outward to the second preset position, they are opened to the maximum state; the sewage collecting pipe is connected to the inside of the drain pipe; the auxiliary valve assembly is installed at the feed end of the sewage collecting pipe, and is surrounded by a plurality of second valve plates around a horizontal axis passing through the center of the feed end of the sewage collecting pipe, and two adjacent second valve plates are slidably connected, and when one second valve plate moves inward or outward, all the second valve plates are driven to move inward or outward; the plurality of second valve plates define a sewage outlet at the center of the sewage collecting pipe, and the sewage outlet is closed when all the second valve plates move inward to the third preset position, and When all the second valve plates move outward to the fourth preset position, they are opened to the maximum state; an associated component is arranged between the main valve component and the auxiliary valve component, and the associated component makes the second valve plate move outward to the fourth preset position when the first valve plate moves inward to the first preset position, and makes the first valve plate move outward to the second preset position when the second valve plate moves inward to the third preset position; the control component includes a sensing cylinder, a filter screen, a push rod and a protruding rod, the sensing cylinder can be slidably installed in the drain pipe up and down and fit with the inner wall of the drain pipe, and the filter screen is installed on the sensing cylinder At the upper end, the upper side of the filter is connected to the sewage collecting pipe; an elastic member is arranged between the sensing cylinder and the drain pipe, and the elastic member stores energy when the filter is blocked and the accumulated weight of the water flow increases to a first preset value, causing the sensing cylinder to move downward from the initial position to the limit position; the elastic member prompts the sensing cylinder to move upward from the limit position to the initial position when the filter is unblocked and the weight of the water flow decreases to a second preset value; the push rod pushes the first valve plate inward to the first preset position when the sensing cylinder moves downward, and the convex rod pushes the second valve plate inward to the third preset position when the sensing cylinder moves upward.

[0007] Optionally, the first valve plate and the second valve plate are both fan-shaped, the straight edge of the first valve plate located on the front side along the first reference rotation direction is the first straight edge, the straight edge of the first valve plate located on the rear side along the first reference rotation direction is the second straight edge, the first straight edge of each first valve plate is slidably connected to the second straight edge of the second valve plate adjacent to the front side, and a first protrusion is provided at one end of the arc edge of the first valve plate close to the second straight edge, and the first protrusion is slidably installed on the drain pipe along the radial direction of the drain pipe; when the first valve plate moves inward to the first preset position, the first straight edge and the second straight edge of the adjacent first valve plate are completely fitted together, and when the first valve plate moves outward to the second preset position, the first straight edge and the second straight edge of the adjacent first valve plate are partially fitted together; the straight edge of the second valve plate located on the front side along the second reference rotation direction is the third straight edge, and the straight edge of the second valve plate located on the rear side along the first reference rotation direction is the third straight edge. The straight edge on the rear side of the second reference rotation direction is the fourth straight edge, the third straight edge of each second valve plate is slidably connected to the fourth straight edge of the adjacent second valve plate on the front side, and a second protrusion is provided at one end of the arc edge of the second valve plate close to the second straight edge, and the second protrusion is radially slidably installed on the sewage collecting pipe along the reference ring, wherein the reference ring is a ring with a horizontal line passing through the center of the feed end of the sewage collecting pipe as the axis and an arbitrary length as the radius; when the second valve plate moves inward to the third preset position, the third straight edge and the fourth straight edge of the adjacent second valve plate are completely fitted together, and when the second valve plate moves outward to the fourth preset position, the third straight edge and the fourth straight edge of the adjacent second valve plate are partially fitted together; wherein, the first reference rotation direction is the clockwise direction viewed from the water inlet end of the drain pipe, and the second reference rotation direction is the counterclockwise direction viewed from the water inlet end of the sewage collecting pipe.

[0008] Optionally, the associated components include a sliding block, a connecting rod and a push plate. The connecting rod can be slid up and down and is installed on the outside of the drain pipe. The lower end of the connecting rod is slidably connected to the arc edge of a second valve plate. When the connecting rod moves upward, it drives the second valve plate to move outward, and when the second valve plate moves inward, it drives the connecting rod to move downward; the sliding block is slidably connected to the arc edge of a first valve plate, and the sliding block moves inward or outward with the first valve plate; the push plate is installed on the connecting rod, and the push plate passes through the sliding block. The side of the push plate away from the center of the drain pipe is an inclined surface to guide the connecting rod to move upward when the sliding block moves inward, and drive the sliding block to move outward when the connecting rod moves downward.

[0009] Optionally, each first protrusion is connected to the side wall of the drain pipe through a first spring, and the first spring is in a naturally extended state when the first valve plate is located at the second preset position and the first preset position. The first protrusion first moves inward and then moves outward when the first valve plate moves from the second preset position to the first preset position, thereby causing the first spring to first stretch and then contract, so that the elastic force of the first spring needs to be overcome when the water inlet changes from a closed state to a maximum open state or from a maximum open state to a closed state; a second spring is arranged between the first straight edges and the second straight edges of two adjacent second valve plates, and the second spring causes the first straight edges and the second straight edges of the two adjacent second valve plates to completely fit together, thereby causing the sewage outlet to close.

[0010] Optionally, the filter is an elastic structure, the middle part of the filter is fixedly connected to the drain pipe, the outer ring of the filter is fixedly connected to the sensing tube, the middle part of the filter is concave downward when the sensing tube is in the initial position, and the middle part is convex upward when the sensing tube is in the extreme position, thereby facilitating impurities on the filter to enter the sewage collection pipe with the water flow.

[0011] Optionally, a central axis extending vertically and coaxial with the drain pipe is provided in the induction cylinder, and the central axis is fixedly connected to the induction cylinder; the sewage treatment sewage pipe also includes a cleaning rod and a rotating sleeve, the drain pipe hinders the upward and downward movement of the rotating sleeve, the rotating sleeve is sleeved on the central axis and spirally cooperates with the central axis to drive the rotating sleeve to rotate when the central axis moves upward or downward; the cleaning rod is located on the upper side of the filter screen, one end of the cleaning rod is fixedly connected to the rotating sleeve, and the other end is connected to the upper end of the induction cylinder in a circumferential sliding manner around the induction cylinder.

[0012] Optionally, a support tube extending vertically and coaxial with the drain pipe is provided in the drain pipe, the support tube is fixedly connected to the inner wall of the drain pipe by a support rod, the rotating sleeve can be installed on the upper end of the support tube so as to rotate around the axis of the support tube, the central axis is inserted into the support tube from bottom to top, and is spirally engaged with the rotating sleeve at the point where it passes through the upper end of the support tube; a vertically extending reserved groove is provided on the outer circumference of the induction tube, the support rod passes through the reserved groove and is connected to the inner wall of the drain pipe, and prevents the induction tube from rotating circumferentially in the drain pipe.

[0013] Optionally, the elastic member is a tension spring, which is sleeved on the central axis, and has two ends fixedly connected to the lower end of the support tube and the lower end of the central axis respectively.

[0014] Optionally, the push rod includes a rod portion and a plate portion, the lower end of the rod portion is fixedly mounted on the sensing tube, the plate portion is mounted on the upper end of the rod portion and is located on the outside of the first valve plate, and the side of the plate portion close to the first valve plate is an inclined surface so as to push the first valve plate inward when the rod portion moves downward.

[0015] Optionally, one end of the sewage collecting pipe connected to the drain pipe is the feed end, and a second mounting platform is provided on the outer circumference of the feed end of the sewage collecting pipe, and a second mounting groove connected to the interior of the sewage collecting pipe is provided inside the second mounting platform; a vertically extending through groove is provided on the side wall of the drain pipe, and the through groove connects the interior of the drain pipe and the second mounting groove, and the protruding rod passes through the through groove and is located on the lower side of a second valve plate, and when the protruding rod moves upward with the induction tube, it pushes the second valve plate inward to close the sewage outlet.

[0016] The beneficial effects of the present invention are as follows: the sewage treatment sewage pipe of the present invention further collects impurities by installing a filter in the pipe, and when the filter is blocked and the accumulated weight of the water flow increases to a first preset value, the sensing tube moves downward from the initial position to the limit position, and the push rod pushes the first valve plate to move inward as the sensing tube moves downward, thereby causing all the first valve plates to move inward to the first preset position, thereby closing the water inlet, and at the same time, the first valve plate drives the second valve plate to move outward to the fourth preset position through the associated component, thereby opening the sewage outlet, allowing the water and impurities on the filter to enter the sewage collecting pipe, thereby dredging the filter; as the water and impurities on the filter are When the mass decreases to the second preset value, the sensing cylinder moves upward from the limit position to the initial position under the action of the elastic member, and the convex rod pushes the second valve plate inward to the third preset position as the sensing cylinder moves upward, thereby causing all the second valve plates to move inward to the third preset position, thereby closing the sewage outlet, and the second valve plate drives the first valve plate to move outward to the second preset position through the associated components, thereby opening the water inlet, and the sewage treatment sewage pipe resumes normal operation; by installing a filter in the drain pipe to further collect impurities, and automatically cleaning the impurities on the filter to the sewage collecting pipe in time when the filter is blocked, the internal self-cleaning of the drain pipe is achieved, reducing the difficulty of cleaning.

[0017] Furthermore, by utilizing the fan-shaped structure of the first valve plate, the first spring is stretched first and then contracted when the first valve plate moves inward, and the first spring is in a naturally extended state when the first valve plate is located at the second preset position and the first preset position, so that the elastic force of the first spring must be overcome when the water inlet changes from the closed state to the maximum open state or from the maximum open state to the closed state. A second spring is provided between the second valve plates to facilitate the closure of the sewage outlet. When the filter screen is blocked, the gravity of water and impurities must overcome the elastic force of the elastic member, the first spring and the second spring to move the sensing cylinder downward, the first valve plate moves inward and the second valve plate moves outward; as the gravity of the impurities and water on the filter screen decreases, the elastic member and the second spring work together to overcome the gravity of the water flow and impurities on the filter screen and the elastic force of the first spring to move the sensing cylinder upward, the first valve plate moves outward and the second valve plate moves inward, therefore, the first preset value is greater than the second preset value, and the sensing cylinder is triggered to move upward when the impurities and water on the filter screen decrease to a smaller value, thereby extending the discharge time of water and impurities to the sewage collection pipe.

[0018] Furthermore, the sewage treatment sewage pipe of the present invention relies solely on the gravity of water and impurities to provide energy, and has a simple structure and is environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a sewage discharge pipe for sewage treatment of the present invention;

[0021] Figure 2 A cross-sectional view of a drainage pipe and a sewage collecting pipe of an embodiment of a sewage treatment sewage pipe of the present invention;

[0022] Figure 3 It is a schematic diagram of the control component structure in an embodiment of the sewage treatment sewage pipe of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the main valve assembly in an embodiment of the sewage treatment sewage pipe of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the first valve plate in an embodiment of the sewage treatment sewage pipe of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the auxiliary valve assembly in the embodiment of the sewage treatment sewage pipe of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the second valve plate in an embodiment of the sewage treatment sewage pipe of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the connecting rod and the push plate in the embodiment of the sewage treatment sewage pipe of the present invention;

[0028] Fig. 9 It is a schematic diagram of a state in which the water inlet is opened and the sewage outlet is closed in an embodiment of the sewage treatment sewage pipe of the present invention;

[0029] Fig.10 It is a schematic diagram of a state in which the water inlet is closed and the sewage outlet is opened in an embodiment of a sewage discharge pipe for sewage treatment of the present invention;

[0030] Fig.11 for Fig.10 The enlarged schematic diagram at A in the middle;

[0031] In the figure: 1, drainage pipe; 12, sewage collecting pipe; 13, first mounting platform; 14, second mounting platform; 15, support tube; 16, support rod; 17, through groove; 2, induction tube; 21, push rod; 22, convex rod; 23, reserved groove; 24, filter screen; 25, rotating sleeve; 26, cleaning rod; 27, tension spring; 28, fixing rod; 29, central axis; 3, first valve plate; 31, first spring; 32, first convex block; 33, first slide groove; 34, first slider; 35, first slide rail; 36, sliding block; 37, third slider; 38, guide hole; 4, second valve plate; 41, second spring; 42, second convex block; 43, second slide groove; 44, second slider; 45, second slide rail; 46, connecting rod; 47, fourth slider; 48, push plate. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] An embodiment of a sewage treatment sewage pipe of the present invention is as follows Figures 1 to 11 As shown, it includes a drain pipe 1, a sewage collecting pipe 12, a main valve assembly, a secondary valve assembly and a control assembly.

[0034] The drain pipe 1 is installed vertically, and the upper end of the drain pipe 1 is the water inlet end. A first mounting platform 13 is arranged on the outer circumference of the water inlet end of the drain pipe 1 . A first mounting groove communicating with the interior of the drain pipe 1 is arranged inside the first mounting platform 13 .

[0035] The main valve assembly is installed in the first installation groove, and the main valve assembly is formed by multiple first valve plates 3 surrounded by the axis of the drain pipe 1. Two adjacent first valve plates 3 are slidably connected, and when one first valve plate 3 moves inward or outward, all the first valve plates 3 are driven to move inward or outward; multiple first valve plates 3 define a water inlet at the center of the drain pipe 1, and the water inlet is closed when all the first valve plates 3 move inward to a first preset position, and is opened to the maximum state when all the first valve plates 3 move outward to a second preset position.

[0036] The sewage collecting pipe 12 is connected to the interior of the drainage pipe 1. The end of the sewage collecting pipe 12 connected to the drainage pipe 1 is the feed end. A second mounting platform 14 is provided on the outer circumference of the feed end of the sewage collecting pipe 12. A second mounting groove connected to the interior of the sewage collecting pipe 12 is provided inside the second mounting platform 14.

[0037] The auxiliary valve assembly is installed in the second installation groove, and the auxiliary valve assembly is formed by multiple second valve plates 4 surrounded by a horizontal axis passing through the center of the feed end of the sewage collecting pipe 12. Two adjacent second valve plates 4 are slidably connected, and when one second valve plate 4 moves inward or outward, all second valve plates 4 are driven to move inward or outward; multiple second valve plates 4 define a sewage outlet at the center of the sewage collecting pipe 12, and the sewage outlet is closed when all second valve plates 4 move inward to the third preset position, and is opened to the maximum state when all second valve plates 4 move outward to the fourth preset position.

[0038] An associated component is arranged between the main valve assembly and the auxiliary valve assembly, and the associated component enables the second valve plate 4 to move outward to the fourth preset position when the first valve plate 3 moves inward to the first preset position, and enables the first valve plate 3 to move outward to the second preset position when the second valve plate 4 moves inward to the third preset position.

[0039] The control assembly includes a sensing cylinder 2, a filter screen 24, a push rod 21 and a protruding rod 22. The sensing cylinder 2 can be slidably installed in the drain pipe 1 up and down and fit with the inner wall of the drain pipe 1; the filter screen 24 is installed at the upper end of the sensing cylinder 2, and the upper side of the filter screen 24 is connected with the sewage collecting pipe 12; an elastic member is arranged between the sensing cylinder 2 and the drain pipe 1, and the elastic member is blocked when the filter screen 24 is blocked, and the accumulated weight of the water flow increases to a first preset value, causing the sensing cylinder 2 to move downward from the initial position to the limit position. When the filter screen 24 is unblocked and the water flow weight is reduced to a second preset value, the sensing cylinder 2 is prompted to move upward from the limit position to the initial position; the push rod 21 pushes the first valve plate 3 inward to the first preset position when the sensing cylinder 2 moves downward, and then all the first valve plates 3 are moved inward to the first preset position, so that the water inlet is closed, and the first valve plate 3 drives the second valve plate 4 to move outward to the fourth preset position through the associated assembly, so that the sewage outlet is opened, and the water and impurities on the filter screen 24 enter the sewage collecting pipe 12. When the first protruding rod 22 moves upward with the induction tube 2, it pushes the second valve plate 4 inward to the third preset position, thereby causing all the second valve plates 4 to move inward to the third preset position, thereby closing the sewage outlet, and the second valve plate 4 drives the first valve plate 3 to move outward to the second preset position through the associated components, thereby opening the water inlet.

[0040] In this embodiment, the first valve plate 3 and the second valve plate 4 are both fan-shaped, the straight edge of the first valve plate 3 located at the front side along the first reference rotation direction is the first straight edge, and the straight edge of the first valve plate 3 located at the rear side along the first reference rotation direction is the second straight edge. The first straight edge of each first valve plate 3 is slidably connected with the second straight edge of the first valve plate 3 adjacent to the front side. Specifically, the second straight edge of the first valve plate 3 is provided with a first slide groove 33 extending along the length direction of the second straight edge, and the first slider 34 is provided at the inner end of the first straight edge of the first valve plate 3. The first slider 34 of each first valve plate 3 is slidably connected with the first slide groove 33 of the first valve plate 3 adjacent to the front side and never disengages. The arc edge of the first valve plate 3 is provided with a first protrusion 32 at one end close to the second straight edge. The first protrusion 32 is slidably installed on the drain pipe 1 along the radial direction of the drain pipe 1. Specifically, the upper side wall and the lower side wall of the first installation groove are provided with a plurality of first slideways extending along the radial direction of the drain pipe 1, and each first protrusion 32 is correspondingly slidably installed on a first slideway and never disengages. When the first valve plate 3 moves inward to the first preset position, the first straight edges and the second straight edges of adjacent first valve plates 3 are completely in contact with each other. When the first valve plate 3 moves outward to the second preset position, the first straight edges and the second straight edges of adjacent first valve plates 3 are partially in contact with each other.

[0041] The straight edge of the second valve plate 4 located on the front side along the second reference rotation direction is the third straight edge, and the straight edge of the second valve plate 4 located on the rear side along the second reference rotation direction is the fourth straight edge. The third straight edge of each second valve plate 4 is slidably connected to the fourth straight edge of the second valve plate 4 adjacent to the front side. Specifically, the fourth straight edge of the second valve plate 4 is provided with a second sliding groove 43 extending along the length direction of the fourth straight edge, and a second sliding block 44 is provided at the inner end of the third straight edge of the second valve plate 4. The second sliding block 44 of each second valve plate 4 is slidably connected to the second sliding groove 43 of the second valve plate 4 adjacent to the front side and never detaches. A second protrusion 42 is provided at one end of the arc edge of the second valve plate 4 near the second straight edge, and the second protrusion 42 is slidably installed on the sewage collecting pipe 12 along the reference ring radial direction. Specifically, a plurality of second slideways extending along the reference ring radial direction are provided on the side wall of the second installation groove, and each second protrusion 42 is slidably installed on a second slideway, wherein the reference ring is a ring with a horizontal line passing through the center of the feed end of the sewage collecting pipe 12 as the axis and an arbitrary length as the radius; when the second valve plate 4 moves inward to the third preset position, the third straight edge and the fourth straight edge of the adjacent second valve plate 4 are completely fitted, and when the second valve plate 4 moves outward to the fourth preset position, the third straight edge and the fourth straight edge of the adjacent second valve plate 4 are partially fitted. Among them, the first reference rotation direction is the clockwise direction viewed from the water inlet end of the drain pipe 1, and the second reference rotation direction is the counterclockwise direction viewed from the water inlet end of the sewage collecting pipe 12.

[0042] In this embodiment, the associated components include a sliding block 36, a connecting rod 46 and a push plate 48. The connecting rod 46 can be slid up and down and installed on the outside of the drain pipe 1. The lower end of the connecting rod 46 is slidably connected to the arc edge of a second valve plate 4. Specifically, a second slide rail 45 extending along the arc edge is provided on the arc edge of the second valve plate 4. A fourth slider 47 is provided at the lower end of the connecting rod 46. The fourth slider 47 is slidably installed on the second slide rail 45 and does not separate from the second slide rail 45, so that the connecting rod 46 drives the second valve plate 4 to move outward when moving upward, and drives the connecting rod 46 downward when the second valve plate 4 moves inward. One end of the sliding block 36 is slidably connected to the arc edge of a first valve plate 3, and the other end passes through the first mounting platform 13 and extends to the outside of the first mounting platform 13. Specifically, a first slide rail 35 extending along the arc edge is provided on the arc edge of a first valve plate 3, and a third slider 37 is provided at one end of the sliding block 36. The third slider 37 is slidably installed on the first slide rail 35 and does not separate from the first slide rail 35, so that the sliding block 36 moves inward or outward with the first valve plate 3. The sliding block 36 is provided with a guide hole 38 extending along the radial direction of the drain pipe 1, and the push plate 48 is installed on the connecting rod 46. The push plate 48 passes through the guide hole 38 on the sliding block 36. The side of the push plate 48 away from the center of the drain pipe 1 is an inclined surface, so as to guide the connecting rod 46 to move upward when the sliding block 36 moves inward, and drive the sliding block 36 to move outward when the connecting rod 46 moves downward.

[0043] In the present embodiment, each first protrusion 32 is connected to the side wall of the drain pipe 1 through a first spring 31. The first spring 31 is in a naturally extended state when the first valve plate 3 is located at the second preset position and the first preset position. When the first valve plate 3 moves from the second preset position to the first preset position, it drives the first protrusion 32 to move first inward and then outward in the first slideway, thereby causing the first spring 31 to stretch first and then contract, so that the elastic force of the first spring 31 needs to be overcome when the water inlet changes from a closed state to a maximum open state or from a maximum open state to a closed state; a second spring 41 is arranged between the first straight edges and the second straight edges of two adjacent second valve plates 4, specifically, the two ends of the second spring 41 are respectively connected to the outer end of the second slide groove 43 of the front second valve plate 4 and the second slider 44 of the rear second valve plate 4, and the second spring 41 prompts the second slider 44 to slide to the inner end of the second slide groove 43, thereby causing the first straight edges and the second straight edges of the two adjacent second valve plates 4 to completely fit together, thereby prompting the sewage outlet to close. When the filter screen 24 is clogged, the gravity of water and impurities needs to overcome the elastic force of the elastic member, the first spring 31 and the second spring 41 to move the sensing tube 2 downward, the first valve plate 3 moves inward and the second valve plate 4 moves outward, and as the impurities and water flow on the filter screen 24 enter the sewage collecting pipe 12, the gravity of the water and impurities on the filter screen 24 decreases, and the elastic member and the second spring 41 work together to overcome the gravity of the water flow and impurities on the filter screen 24 and the elastic force of the first spring 31 to move the sensing tube 2 upward, the first valve plate 3 moves outward and the second valve plate 4 moves inward, thereby making the first preset value greater than the second preset value, and at the same time, the elastic member can adopt a structure with smaller elastic force, so that when the gravity of the water flow and impurities on the filter screen 24 is reduced to a smaller value, the sensing tube 2 is triggered to move upward, the first valve plate 3 moves outward and the second valve plate 4 moves inward, thereby extending the discharge time of water and impurities to the sewage collecting pipe 12.

[0044] In this embodiment, the filter screen 24 is an elastic structure, the middle part of the filter screen 24 is fixedly connected to the drain pipe 1, and the outer ring of the filter screen 24 is fixedly connected to the sensing tube 2. The middle part of the filter screen 24 is concave downward when the sensing tube 2 is in the initial position, and the middle part is convex upward when the sensing tube 2 is in the extreme position, thereby facilitating the impurities on the filter screen 24 to enter the sewage collecting pipe 12 with the water flow.

[0045] In this embodiment, a central axis 29 extending vertically and coaxial with the drain pipe 1 is provided in the induction tube 2, and the central axis 29 is fixedly connected to the induction tube 2. Specifically, the central axis 29 is connected to the inner wall of the induction tube 2 through a fixed rod 28 extending radially along the induction tube 2. The sewage treatment sewage pipe also includes a cleaning rod 26 and a rotating sleeve 25. The drain pipe 1 prevents the rotating sleeve 25 from moving up and down. The rotating sleeve 25 is sleeved on the central axis 29 and spirally matched with the central axis 29 to drive the rotating sleeve 25 to rotate when the central axis 29 moves upward or downward; the cleaning rod 26 is located on the upper side of the filter screen 24, one end of the cleaning rod 26 is fixedly connected to the rotating sleeve 25, and the other end is connected to the upper end of the induction tube 2 and slidably around the induction tube 2.

[0046] In this embodiment, a support tube 15 extending vertically and coaxial with the drain pipe 1 is provided in the drain pipe 1. The support tube 15 is fixedly connected to the inner wall of the drain pipe 1 by a support rod 16. The rotating sleeve 25 can be rotatably installed on the upper end of the support tube 15 around the axis of the support tube 15. The central axis 29 is inserted into the support tube 15 from bottom to top and spirally cooperates with the rotating sleeve 25 at the point where it passes through the upper end of the support tube 15; a vertically extending reserved groove 23 is provided on the outer circumference of the induction tube 2. The support rod 16 passes through the reserved groove 23 and is connected to the inner wall of the drain pipe 1, and prevents the induction tube 2 from rotating circumferentially in the drain pipe 1.

[0047] In this embodiment, the elastic member is a tension spring 27 , which is sleeved on the central axis 29 , and has two ends fixedly connected to the lower end of the support tube 15 and the lower end of the central axis 29 , respectively.

[0048] In this embodiment, the push rod 21 includes a rod portion and a plate portion. The rod portion is located in the drain pipe 1, and the lower end of the rod portion is fixedly mounted on the sensing tube 2; the plate portion is mounted on the upper end of the rod portion, passes through the first mounting platform 13, and is located on the outside of a first valve plate 3. The side of the plate portion close to the first valve plate 3 is an inclined surface so as to push the first valve plate 3 inward when moving downward with the rod portion.

[0049] In this embodiment, a vertically extending through groove 17 is provided on the side wall of the drain pipe 1, and the through groove 17 connects the interior of the drain pipe 1 and the second mounting groove. The protruding rod 22 passes through the through groove 17 and is located at the lower side of a second valve plate 4. When the protruding rod 2 moves upward with the induction tube 2, it pushes the second valve plate 4 inward to close the sewage outlet.

[0050] When the sewage pipe for sewage treatment of the present invention is working normally, the water inlet is opened, the sewage outlet is closed, the induction cylinder 2 is located at the initial position, the middle part of the filter screen 24 is depressed downward, sewage enters from the water inlet, is filtered by the filter screen 24 and then discharged downward, and impurities in the sewage remain on the upper side of the filter screen 24. As impurities accumulate on the filter screen 24, the filter screen 24 is blocked, so that the water flow cannot pass through, and the amount of water on the filter screen 24 accumulates until the gravity of the water and impurities on the filter screen 24 reaches the first preset value. The gravity of the water and impurities overcomes the elastic force of the elastic member, the first spring 31 and the second spring 41 to move the sensing tube 2 downward to the limit position, thereby allowing the elastic member to store energy. At the same time, the sensing tube 2 drives the push rod 21 to move downward, and the plate portion of the push rod 21 pushes a first valve plate 3 to move inward, so that all the first valve plates 3 move inward to the first preset position, thereby closing the water inlet. At the same time, the first valve plate 3 drives the sliding block 36 to move inward, and the sliding block 36 pushes the push plate 48 and the connecting rod 46 upward through the inclined surface on the push plate 48, and the connecting rod 46 drives the second valve plate 4 to move outward to the fourth preset position, thereby opening the sewage outlet.

[0051] When the induction cylinder 2 reaches the limit position, the middle part of the filter screen 24 bulges upward, and when the induction cylinder 2 moves downward, the outer ring of the filter screen 24 is driven to move downward. At the same time, when the induction cylinder 2 moves downward, the central axis 29 is driven to move downward. Since the drain pipe 1 limits the upward and downward movement of the rotating sleeve 25, the rotating sleeve 25 drives the cleaning rod 26 to rotate under the spiral cooperation with the central axis 29, so that the impurities on the filter screen 24 enter the sewage collecting pipe 12 through the sewage outlet.

[0052] As the water and impurities on the filter 24 enter the sewage collecting pipe 12, the filter 24 is unblocked, and part of the water flow passes along the filter 24, and the weight of the water and impurities on the filter 24 is reduced until the gravity of the water and impurities on the filter 24 is reduced to the second preset value. The elastic member and the second spring 41 work together to overcome the gravity of the water flow and impurities on the filter 24 and the elastic force of the first spring 31, so that the sensing cylinder 2 moves upward to the initial position. The protruding rod 22 pushes the second valve plate 4 to move inward to the third preset position as the sensing cylinder 2 moves upward, thereby closing the sewage outlet. At the same time, the second valve plate 4 drives the connecting rod 46 and the push plate 48 to move downward. The push plate 48 pushes the sliding block 36 outward to the second preset position through the inclined surface on its outer side, thereby opening the water inlet. The sewage passes normally, and the sewage treatment sewage pipe resumes normal operation.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sewage pipe for sewage treatment, characterized in that: It comprises a drain pipe, a sewage collecting pipe, a main valve assembly, a sub-valve assembly and a control assembly, wherein the drain pipe is installed vertically; the main valve assembly is installed at the water inlet end of the drain pipe, and is formed by a plurality of first valve plates enclosed around the axis of the drain pipe, two adjacent first valve plates are slidably connected, and when one first valve plate moves inward or outward, all the first valve plates are driven to move inward or outward; the plurality of first valve plates define a water inlet at the center of the drain pipe, and the water inlet is closed when all the first valve plates move inward to a first preset position, and is opened to a maximum state when all the first valve plates move outward to a second preset position; The sewage collecting pipe is connected to the inside of the drain pipe; the auxiliary valve assembly is installed at the feed end of the sewage collecting pipe, and is surrounded by a plurality of second valve plates around a horizontal axis passing through the center of the feed end of the sewage collecting pipe. Two adjacent second valve plates are slidably connected, and when one second valve plate moves inward or outward, it drives all the second valve plates to move inward or outward; the plurality of second valve plates define a sewage outlet at the center of the sewage collecting pipe, and the sewage outlet is closed when all the second valve plates move inward to a third preset position, and is opened to a maximum state when all the second valve plates move outward to a fourth preset position; an associated assembly is arranged between the main valve assembly and the auxiliary valve assembly, and the associated assembly causes the second valve plate to move outward to the fourth preset position when the first valve plate moves inward to the first preset position, and causes the second valve plate to move inward to the third preset position when the second valve plate moves inward to the third preset position When the sensing tube is in the preset position, the first valve plate moves outward to the second preset position; the control component includes a sensing tube, a filter screen, a push rod and a convex rod. The sensing tube can be slidably installed in the drain pipe up and down and fits with the inner wall of the drain pipe. The filter screen is installed at the upper end of the sensing tube, and the upper side of the filter screen is connected with the sewage collecting pipe; an elastic member is arranged between the sensing tube and the drain pipe. When the filter screen is blocked, the accumulated weight of the water flow increases to the first preset value, causing the sensing tube to move downward from the initial position to the limit position, and the elastic member stores energy when the filter screen is unblocked and the water flow weight decreases to the second preset value, prompting the sensing tube to move upward from the limit position to the initial position; when the push rod moves downward with the sensing tube, it pushes the first valve plate inward to the first preset position, and when the convex rod moves upward with the sensing tube, it pushes the second valve plate inward to the third preset position; The first valve plate and the second valve plate are both fan-shaped, the straight edge of the first valve plate located on the front side along the first reference rotation direction is the first straight edge, the straight edge of the first valve plate located on the rear side along the first reference rotation direction is the second straight edge, the first straight edge of each first valve plate is slidably connected to the second straight edge of the second valve plate adjacent to the front side, a first protrusion is provided at one end of the arc edge of the first valve plate close to the second straight edge, and the first protrusion is slidably installed on the drain pipe along the radial direction of the drain pipe; When the first valve plate moves inwardly to the first preset position, the first straight edge and the second straight edge of the adjacent first valve plate are completely in contact with each other, and when the first valve plate moves outwardly to the second preset position, the first straight edge and the second straight edge of the adjacent first valve plate are partially in contact with each other; the straight edge of the second valve plate located on the front side along the second reference rotation direction is the third straight edge, and the straight edge of the second valve plate located on the rear side along the second reference rotation direction is the fourth straight edge, the third straight edge of each second valve plate is slidably connected to the fourth straight edge of the second valve plate adjacent to the front side, and a second protrusion is provided at one end of the arc edge of the second valve plate close to the second straight edge, and the first The two protrusions are radially slidably installed on the sewage collecting pipe along a reference ring, wherein the reference ring is a ring with a horizontal line passing through the center of the feed end of the sewage collecting pipe as the axis and an arbitrary length as the radius; when the second valve plate moves inward to the third preset position, the third straight edge and the fourth straight edge of the adjacent second valve plate are completely abutted, and when the second valve plate moves outward to the fourth preset position, the third straight edge and the fourth straight edge of the adjacent second valve plate are partially abutted; wherein the first reference rotation direction is the clockwise direction viewed from the water inlet end of the drain pipe, and the second reference rotation direction is the counterclockwise direction viewed from the water inlet end of the sewage collecting pipe; The associated components include a sliding block, a connecting rod and a push plate. The connecting rod can be slid up and down and installed on the outside of the drain pipe. The lower end of the connecting rod is slidably connected to the arc edge of a second valve plate. When the connecting rod moves upward, it drives the second valve plate to move outward, and when the second valve plate moves inward, it drives the connecting rod to move downward; the sliding block is slidably connected to the arc edge of a first valve plate, and the sliding block moves inward or outward with the first valve plate; the push plate is installed on the connecting rod, and the push plate passes through the sliding block. The side of the push plate away from the center of the drain pipe is an inclined surface, so as to guide the connecting rod to move upward when the sliding block moves inward, and drive the sliding block to move outward when the connecting rod moves downward; Each first protrusion is connected to the side wall of the drain pipe through a first spring. The first spring is in a naturally extended state when the first valve plate is located at the second preset position and the first preset position. The first protrusion first moves inward and then moves outward when the first valve plate moves from the second preset position to the first preset position, thereby causing the first spring to first stretch and then contract, so that the elastic force of the first spring needs to be overcome when the water inlet changes from a closed state to a maximum open state or from a maximum open state to a closed state; a second spring is arranged between the first straight edges and the second straight edges of two adjacent second valve plates, and the second spring causes the first straight edges and the second straight edges of the two adjacent second valve plates to completely fit together, thereby causing the sewage outlet to close.

2. A sewage pipe for sewage treatment according to claim 1, characterized in that: The filter is an elastic structure. The middle part of the filter is fixedly connected to the drain pipe, and the outer ring of the filter is fixedly connected to the sensing tube. The middle part of the filter is concave downward when the sensing tube is in the initial position, and the middle part is convex upward when the sensing tube is in the extreme position, thereby facilitating the impurities on the filter to enter the sewage collection pipe with the water flow.

3. A sewage pipe for sewage treatment according to claim 2, characterized in that: A central axis extending vertically and coaxial with the drain pipe is provided in the induction cylinder, and the central axis is fixedly connected to the induction cylinder; the sewage treatment sewage pipe also includes a cleaning rod and a rotating sleeve, the drain pipe hinders the rotating sleeve from moving up and down, the rotating sleeve is sleeved on the central axis and spirally cooperates with the central axis to drive the rotating sleeve to rotate when the central axis moves upward or downward; the cleaning rod is located on the upper side of the filter screen, one end of the cleaning rod is fixedly connected to the rotating sleeve, and the other end is connected to the upper end of the induction cylinder in a circumferential sliding manner around the induction cylinder.

4. A sewage pipe for sewage treatment according to claim 3, characterized in that: A support tube extending vertically and coaxial with the drain pipe is provided in the drain pipe. The support tube is fixedly connected to the inner wall of the drain pipe by a support rod. The rotating sleeve can be installed on the upper end of the support tube so as to rotate around the axis of the support tube. The central axis is inserted into the support tube from bottom to top and is spirally engaged with the rotating sleeve at the point where it passes through the upper end of the support tube. A vertically extending reserved groove is provided on the outer circumference of the induction tube. The support rod passes through the reserved groove and is connected to the inner wall of the drain pipe, thereby preventing the induction tube from rotating circumferentially in the drain pipe.

5. A sewage pipe for sewage treatment according to claim 4, characterized in that: The elastic member is a tension spring, which is sleeved on the central axis, and two ends of the tension spring are respectively fixedly connected with the lower end of the support tube and the lower end of the central axis.

6. A sewage pipe for sewage treatment according to claim 1, characterized in that: The push rod includes a rod portion and a plate portion. The lower end of the rod portion is fixedly mounted on the sensing tube, and the plate portion is mounted on the upper end of the rod portion and is located outside the first valve plate. The side of the plate portion close to the first valve plate is an inclined surface so as to push the first valve plate inward when the rod portion moves downward.

7. A sewage pipe for sewage treatment according to claim 1, characterized in that: One end of the sewage collecting pipe connected to the drain pipe is the feed end. A second mounting platform is provided on the outer circumference of the feed end of the sewage collecting pipe. A second mounting groove connected to the interior of the sewage collecting pipe is provided inside the second mounting platform. A vertically extending through groove is provided on the side wall of the drain pipe, and the through groove connects the interior of the drain pipe and the second mounting groove. The protruding rod passes through the through groove and is located on the lower side of a second valve plate. When the protruding rod moves upward with the induction tube, it pushes the second valve plate inward to close the sewage outlet.

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