Rainwater storage tank bottom layer sediment sludge discharge mechanism and use method thereof

Abstract

The application discloses a rainwater storage tank bottom sludge settling sludge discharging mechanism, which comprises a storage tank body, a plurality of right-angle arms are arranged in the storage tank body, the right-angle arms are arranged in a ring shape, the right-angle arms move along the radial direction of the storage tank body, the outer end of the right-angle arm is provided with a first connecting shaft, two arc-shaped sludge scraping plates are rotatably arranged on the first connecting shaft, the end portions of the arc-shaped sludge scraping plates on the adjacent two right-angle arms are rotatably connected with each other, and the plurality of arc-shaped sludge scraping plates form a ring shape. Through the deformation of the ring shape formed by the plurality of arc-shaped sludge scraping plates in the storage tank body, the plurality of arc-shaped sludge scraping plates can be conveniently gathered towards the direction of the sludge collecting cylinder, so that the plurality of arc-shaped sludge scraping plates can push the sludge into the sludge collecting cylinder, the automatic gathering and sludge discharging of the sludge are realized, the sludge cleaning mode is effectively simplified, the cleaning difficulty is reduced, the manpower is saved, the work efficiency is improved, and the storage tank body can always keep the water storage working state.

Description

Technical Field

[0001] This invention relates to the technical field of urban water conservancy construction, and in particular to a sludge removal mechanism for the bottom sedimentation sludge of a rainwater storage tank and its usage method. Background Technology

[0002] In the construction of sponge cities, rainwater is the main source of water resources. Rainwater can be collected and treated for many purposes, such as fire fighting, greening, road washing, landscape purification, green plant irrigation, and public toilet water use. It can greatly reduce the amount of groundwater extraction and demand.

[0003] Rainwater collection mainly uses reservoirs. However, when rainwater flows into the reservoirs through roads, sewer pipes, and manifolds, it contains a large amount of sludge and other impurities. When the rainwater is stored in the reservoir, the impurities will naturally settle to the bottom. Therefore, it is necessary to clean the sludge and impurities at the bottom of the reservoir. The traditional cleaning method is to pump the water out of the reservoir and then have workers go down into the reservoir to shovel and clean the sludge deposited at the bottom. This cleaning method is cumbersome, difficult, and requires a lot of manpower and time, resulting in low work efficiency. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a sludge removal mechanism for the bottom sedimentation sludge of a rainwater storage tank and its usage method.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A sludge removal mechanism for sedimentation at the bottom of a rainwater storage tank includes a storage tank body. Multiple right-angle arms are provided inside the storage tank body. The multiple right-angle arms are arranged in a ring. The right-angle arms move along the radial direction of the storage tank body. A first connecting shaft is provided at the outer end of the right-angle arms. Two arc-shaped scraper blades are rotatably provided on the first connecting shaft. The ends of the arc-shaped scraper blades on two adjacent right-angle arms are rotatably connected to each other. The multiple arc-shaped scraper blades form a ring.

[0007] The bottom of the water storage tank is connected to a sludge collection cylinder, and a sealing plate is installed inside the sludge collection cylinder.

[0008] Furthermore, a groove is provided at the bottom of the right-angle arm, and a slide plate is slidably arranged in the groove. Two auxiliary push plates are rotatably arranged on the slide plate at an angle relative to each other. The two auxiliary push plates are rotatably connected to two arc-shaped scraper plates on the first connecting shaft. The two auxiliary push plates are tilted in opposite directions. A first leaf spring is connected between the slide plate and the right-angle arm.

[0009] Furthermore, a vertical cylinder is vertically arranged in the middle of the water storage tank body, and multiple sets of curved arm structures are arranged on the outer wall of the cylinder. The multiple sets of curved arm structures are arranged in a ring, and the outer ends of the curved arm structures are connected to right-angle arms.

[0010] The articulated arm structure includes two first adjusting arms rotatably mounted on the outer wall of the vertical cylinder. The two first adjusting arms are parallel, and a first gear is provided at the outer end of the first adjusting arm. A second gear is meshed on the first gear, and a second adjusting arm is provided on the second gear. The two second adjusting arms are parallel, and the outer ends of the second adjusting arms are rotatably mounted on a right-angle arm. A U-shaped outer plate is fitted on the outer sides of the two first gears and the two second gears, and both the first gear and the second gear are rotatably mounted inside the U-shaped outer plate.

[0011] Furthermore, a motor is installed inside the vertical cylinder, and a lead screw is installed at the output end of the motor, with a screw sleeve installed on the lead screw;

[0012] Multiple transition discs are rotatably provided on the outer wall of the vertical cylinder, and the multiple transition discs are distributed in a ring. Multiple third adjusting arms are rotatably provided on the outer wall of the screw sleeve. The third adjusting arms pass through the transition discs and slide relative to each other. The outer end of the third adjusting arm is rotatably provided with a fourth adjusting arm, and the outer end of the fourth adjusting arm is rotatably mounted on the first adjusting arm.

[0013] Furthermore, the inner wall of the vertical cylinder is set as a polygon, and multiple T-shaped positioning plates are provided on the outer wall of the screw sleeve. The outer end of the T-shaped positioning plate is vertically slidably installed at the corner position of the inner wall of the vertical cylinder. Multiple right-angle fixing plates are provided at the bottom of the vertical cylinder. The right-angle fixing plates are located inside the mud collection cylinder. The top surface of the right-angle fixing plate is set as a cone, and the outer end of the right-angle fixing plate is fixed on the inner wall of the mud collection cylinder.

[0014] Furthermore, the mud collection cylinder is conical in shape, and the sealing plate includes a column fixed to the bottom of the cylinder. Multiple second connecting shafts are obliquely fixed on the outer wall of the column. The multiple second connecting shafts are distributed in an umbrella shape. Two fan plates are relatively obliquely rotatably arranged on the second connecting shafts. The fan plates on adjacent second connecting shafts are connected to each other. The multiple fan plates form a cone shape and seal the mud collection cylinder.

[0015] Furthermore, a movable column is provided at the bottom of the column, and the top of the movable column is slidably inserted into the column. Multiple mounting plates are provided at the bottom of the movable column, and two push-pull rods are rotatably provided on the mounting plates. The outer ends of the two push-pull rods are rotatably connected to the side walls of two fan plates on the second connecting shaft, and a second leaf spring is connected between the two push-pull rods.

[0016] Furthermore, a polygonal sliding hole is provided at the bottom of the column, the movable column is polygonal in shape, the top of the movable column is inserted into the polygonal sliding hole, and a polygonal disk is provided at the top of the movable column, the polygonal disk being slidably installed in the polygonal sliding hole;

[0017] Multiple locking holes are provided on the side wall of the polygonal disc, and a third leaf spring is provided in the locking hole. The third leaf spring is provided with a locking post, which is slidably locked in the locking hole. Multiple locking grooves are provided on the inner wall of the polygonal sliding hole, and the outer end of the locking post is locked in the locking groove. Multiple limiting plates are provided on the inner wall of the polygonal sliding hole, which are used to block and lock the polygonal disc.

[0018] A method for using a sludge removal mechanism for sedimentation sludge at the bottom of a rainwater storage tank, the specific steps of which are as follows:

[0019] a. The second leaf spring pushes the fan plate to reset, and multiple fan plates are in a conical distribution state and block the mud collection cylinder. Rainwater enters the main body of the water storage tank for storage and settling. The sludge in the rainwater naturally settles to the bottom of the inner wall of the main body of the water storage tank.

[0020] b. After the sludge has settled for a specified time, the screw sleeve is moved by the motor and the lead screw. The screw sleeve can drive the curved arm structure to move. The curved arm structure pulls the right-angle arm to move in the radial direction of the water storage tank body. Multiple right-angle arms move synchronously.

[0021] c. Multiple right-angle arms drive multiple arc-shaped scrapers to deform and retract. The multiple arc-shaped scrapers simultaneously approach the sludge collection cylinder and push the sludge deposited at the bottom of the water storage tank into the sludge collection cylinder, thereby realizing the sludge aggregation and collection.

[0022] d. At specified intervals, multiple arc-shaped scrapers are repeatedly moved, and the settled sludge is continuously fed into the sludge collection cylinder, gradually increasing the amount of sludge on the sealing plate.

[0023] e. When the weight of the sludge on the sealing plate reaches the specified value, the sludge overcomes the elastic thrust of the third leaf spring on the locking column, thereby causing the moving column to move downward and multiple fan plates to open, thus realizing automatic sludge discharge.

[0024] f. After the sludge is discharged from the fan plate, the second leaf spring can push the fan plate to reset and re-seal the sludge collection cylinder.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: by deforming the ring composed of multiple arc-shaped sludge scrapers within the body of the water storage tank, the multiple arc-shaped sludge scrapers can be easily brought together towards the sludge collection cylinder, so that the multiple arc-shaped sludge scrapers can push the sludge into the sludge collection cylinder, thereby realizing the automatic sludge collection and discharge work, effectively simplifying the sludge cleaning method, reducing the cleaning difficulty, saving manpower, improving work efficiency, and ensuring that the water storage tank body can always maintain a water storage working state. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of the central water storage tank;

[0029] Figure 3 yes Figure 1 A partially enlarged structural diagram of the arc-shaped scraper;

[0030] Figure 4 yes Figure 2 Enlarged schematic diagram of the central tube structure;

[0031] Figure 5 yes Figure 2 Enlarged schematic diagram of CIMC mud cylinder structure;

[0032] Figure 6 yes Figure 5 Enlarged cross-sectional structural diagram of the infill cylinder and column;

[0033] Figure 7 yes Figure 6 Enlarged structural diagram of the central column;

[0034] The following are labels in the attached diagram: 1. Water storage tank body; 2. Right-angle arm; 3. First connecting shaft; 4. Arc-shaped scraper; 5. Sludge collection cylinder; 6. Sealing plate; 7. Slide plate; 8. Auxiliary push plate; 9. First leaf spring; 10. Vertical cylinder; 11. First adjusting arm; 12. First gear; 13. Second gear; 14. Second adjusting arm; 15. U-shaped outer plate; 16. Motor; 17. Lead screw; 18. Screw sleeve; 19. Transition plate; 20. Third adjusting arm; 21. Fourth adjusting arm; 22. T-shaped positioning plate; 23. Right-angle fixing plate; 24. Column; 25. Second connecting shaft; 26. Fan plate; 27. Moving column; 28. Mounting plate; 29. ​​Push-pull rod; 30. Second leaf spring; 31. Polygonal disc; 32. Third leaf spring; 33. Positioning column; 34. Slot; 35. Limiting plate. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] In the description of this invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. This embodiment is written in a progressive manner.

[0038] like Figures 1 to 3 As shown, the present invention provides a sludge removal mechanism for the bottom sedimentation sludge of a rainwater storage tank, including a storage tank body 1. The storage tank body 1 is provided with a plurality of right-angle arms 2, which are arranged in a ring. The right-angle arms 2 move along the radial direction of the storage tank body 1. The outer end of the right-angle arms 2 is provided with a first connecting shaft 3. Two arc-shaped scraper blades 4 are rotatably provided on the first connecting shaft 3. The ends of the arc-shaped scraper blades 4 on two adjacent right-angle arms 2 are rotatably connected to each other. The plurality of arc-shaped scraper blades 4 form a ring.

[0039] The bottom of the water storage tank body 1 is connected to a sludge collection cylinder 5, and a sealing plate 6 is installed inside the sludge collection cylinder 5.

[0040] Specifically, the outer wall of the arc-shaped scraper 4 contacts the inner wall of the water storage tank body 1, and the bottom of the arc-shaped scraper 4 contacts the bottom of the inner wall of the water storage tank body 1. The water storage tank body 1 is used to store rainwater. When the rainwater is left to stand in the water storage tank body 1 for a long time, the sludge in the rainwater naturally settles to the bottom of the water storage tank body 1. The right-angle arm 2 is pulled towards the middle of the water storage tank body 1. Multiple right-angle arms 2 move synchronously. The right-angle arm 2 pulls the two arc-shaped scraper 4 on the first connecting shaft 3 through its first connecting shaft 3, causing them to bend and fold. At this time, Multiple arc-shaped scraper blades 4 move synchronously, thus forming a prism shape from the ring-shaped scraper blades 4. As the multiple arc-shaped scraper blades 4 deform, they move towards the sludge collection cylinder 5. The arc-shaped scraper blades 4 can scrape and push the sludge deposited at the bottom of the water storage tank body 1 towards the sludge collection cylinder 5, thereby causing the sludge to gather and enter the sludge collection cylinder 5. When the sealing plate 6 is opened, the water pressure in the water storage tank body 1 can push the sludge in the sludge collection cylinder 5 to be discharged naturally, thereby realizing the rapid sludge discharge work in the water storage tank body 1.

[0041] By deforming the ring formed by multiple arc-shaped scraper blades 4 within the main body 1 of the water storage tank, the multiple arc-shaped scraper blades 4 can be easily brought together towards the sludge collection cylinder 5, so that the multiple arc-shaped scraper blades 4 can push the sludge into the sludge collection cylinder 5, realizing the automatic sludge collection and discharge work, effectively simplifying the sludge cleaning method, reducing the cleaning difficulty, saving manpower, improving work efficiency, and the main body 1 of the water storage tank can always maintain the water storage working state.

[0042] like Figure 3 As shown, as a preferred embodiment of the above, the bottom of the right-angle arm 2 is provided with a groove, and a slide plate 7 is slidably arranged in the groove. Two auxiliary push plates 8 are rotatably arranged on the slide plate 7 at an angle relative to each other. The two auxiliary push plates 8 are respectively rotatably connected to two arc-shaped mud scrapers 4 on the first connecting shaft 3. The two auxiliary push plates 8 are tilted in opposite directions. A first leaf spring 9 is connected between the slide plate 7 and the right-angle arm 2.

[0043] Specifically, the first leaf spring 9 generates an elastic tension on the slide plate 7. When the right-angle arm 2 moves toward the mud collection cylinder 5, the multiple arc-shaped scraper blades 4 need to deform. The first leaf spring 9 provides an elastic pre-tension force to the slide plate 7, thereby causing the slide plate 7 to move toward the first connecting shaft 3. The slide plate 7 can push the two arc-shaped scraper blades 4 to flip and deform through the two auxiliary push plates 8. By setting the slide plate 7, the auxiliary push plates 8 and the first leaf spring 9, a pre-tension force can be provided for the deformation of the multiple arc-shaped scraper blades 4, ensuring that the multiple arc-shaped scraper blades 4 deform smoothly in the specified direction. By adopting the structure of the chute, the slide plate 7 and the two auxiliary push plates 8, it is convenient to keep the two arc-shaped scraper blades 4 on the first connecting shaft 3 in a synchronous motion state.

[0044] like Figures 3 to 4 As shown, as a preferred embodiment of the above embodiment, a vertical cylinder 10 is vertically arranged in the middle of the water storage tank body 1, and multiple sets of curved arm structures are arranged on the outer wall of the vertical cylinder 10. The multiple sets of curved arm structures are arranged in a ring, and the outer end of the curved arm structure is connected to the right-angle arm 2.

[0045] The curved arm structure includes two first adjusting arms 11 rotatably mounted on the outer wall of the vertical cylinder 10. The two first adjusting arms 11 are parallel. The outer end of the first adjusting arm 11 is provided with a first gear 12. A second gear 13 is meshed on the first gear 12. A second adjusting arm 14 is provided on the second gear 13. The two second adjusting arms 14 are parallel. The outer end of the second adjusting arm 14 is rotatably mounted on the right-angle arm 2. A U-shaped outer plate 15 is sleeved on the outer side of the two first gears 12 and the two second gears 13. The first gears 12 and the second gears 13 are both rotatably mounted inside the U-shaped outer plate 15.

[0046] Specifically, the first adjusting arm 11 is pushed to rotate on the vertical cylinder 10. Since the two first adjusting arms 11 are parallel to each other, the two first adjusting arms 11 move synchronously and drive the U-shaped outer plate 15 to translate. The first gear 12 rotates synchronously relative to the U-shaped outer plate 15. Since the first gear 12 and the second gear 13 mesh, the first gear 12 pushes the second gear 13 to rotate in the opposite direction. The second gear 13 pushes the second adjusting arm 14 to tilt. The two second adjusting arms 14 drive the right-angle arm 2 to move synchronously, thereby pulling the right-angle arm 2 to move towards the vertical cylinder 10, realizing the deformation movement of multiple arc-shaped scraper blades 4.

[0047] By adopting the structure of the first adjusting arm 11, the first gear 12, the second gear 13, the second adjusting arm 14 and the U-shaped outer plate 15, the right-angle arm 2 can be kept on the horizontal plane while performing translational movement, so as to achieve the purpose of guiding and power supply to the right-angle arm 2.

[0048] like Figure 4 As shown, as a preferred embodiment of the above, a motor 16 is provided inside the vertical cylinder 10, a lead screw 17 is provided at the output end of the motor 16, and a screw sleeve 18 is screwed onto the lead screw 17.

[0049] Multiple transition discs 19 are rotatably provided on the outer wall of the vertical cylinder 10. The multiple transition discs 19 are arranged in a ring. Multiple third adjusting arms 20 are rotatably provided on the outer wall of the screw sleeve 18. The third adjusting arms 20 pass through the transition discs 19 and slide relative to each other. The outer end of the third adjusting arm 20 is rotatably provided with a fourth adjusting arm 21. The outer end of the fourth adjusting arm 21 is rotatably mounted on the first adjusting arm 11.

[0050] Specifically, the motor 16 can drive the screw sleeve 18 to move up and down via the lead screw 17. The screw sleeve 18 can rotate the first adjusting arm 11 on the vertical cylinder 10 via the third adjusting arm 20 and the fourth adjusting arm 21, thereby driving the right-angle arm 2 to move. When the screw sleeve 18 moves, the screw sleeve 18 can drive the transition plate 19 to rotate synchronously via the third adjusting arm 20. The third adjusting arm 20 can slide within the transition plate 19. By adopting the structure of the transition plate 19, the third adjusting arm 20 and the fourth adjusting arm 21, power can be supplied to the first adjusting arm 11 while ensuring the sealing and isolation between the inside and outside of the vertical cylinder 10, and the conversion of lever arm and torque can be realized.

[0051] like Figure 2 and Figure 4As shown, in a preferred embodiment, the inner wall of the vertical cylinder 10 is polygonal, and the outer wall of the screw sleeve 18 is provided with a plurality of T-shaped locking plates 22. The outer ends of the T-shaped locking plates 22 are vertically slidably installed at the corner positions of the inner wall of the vertical cylinder 10. The bottom of the vertical cylinder 10 is provided with a plurality of right-angle fixing plates 23. The right-angle fixing plates 23 are located inside the mud collecting cylinder 5. The top surface of the right-angle fixing plates 23 is conical, and the outer ends of the right-angle fixing plates 23 are fixed to the inner wall of the mud collecting cylinder 5.

[0052] Specifically, by adopting a structure of multiple T-shaped card slots 22 and setting the inner wall of the vertical cylinder 10 as a polygon, it is convenient to guide and support the screw sleeve 18, and at the same time, it is convenient to support the lead screw 17. The right-angle fixing plate 23 can fix the vertical cylinder 10.

[0053] like Figure 5 As shown, in a preferred embodiment of the above, the mud collection cylinder 5 is conical in shape. The sealing plate 6 includes a column 24 fixed to the bottom of the vertical cylinder 10. Multiple second connecting shafts 25 are obliquely fixed on the outer wall of the column 24. The multiple second connecting shafts 25 are distributed in an umbrella shape. Two fan plates 26 are relatively obliquely rotatably arranged on the second connecting shafts 25. The fan plates 26 on adjacent second connecting shafts 25 are connected to each other. The multiple fan plates 26 form a cone shape and seal the mud collection cylinder 5.

[0054] Specifically, multiple arc-shaped scraper blades 4 can push sludge into the sludge collection cylinder 5, multiple fan blades 26 can block the sludge, and multiple fan blades 26 can block rainwater in the water storage tank body 1 and the sludge collection cylinder 5. When the sludge storage in the sludge collection cylinder 5 reaches the specified requirement, the fan blades 26 are pushed to rotate on the second connecting shaft 25, thereby opening the multiple fan blades 26. The rainwater in the water storage tank body 1 can push the sludge in the sludge collection cylinder 5 downward and discharge it through the bottom opening of the sludge collection cylinder 5, thereby realizing the sludge discharge work.

[0055] By employing a structure with multiple fan plates 26, the sealing of the cone-shaped mud collection cylinder 5 can be achieved, and the rainwater flow rate can be increased when the fan plates 26 are open.

[0056] like Figure 6 As shown, in a preferred embodiment, the bottom of the column 24 is provided with a movable column 27, the top of the movable column 27 is slidably inserted into the column 24, the bottom of the movable column 27 is provided with a plurality of mounting plates 28, and two push-pull rods 29 are rotatably provided on the mounting plates 28. The outer ends of the two push-pull rods 29 are respectively rotatably connected to the side walls of the two fan plates 26 on the second connecting shaft 25, and a second leaf spring 30 is connected between the two push-pull rods 29.

[0057] Specifically, by pushing the movable column 27 downward, the movable column 27 can pull the two fan plates 26 on the second connecting shaft 25 closer to each other and flip them over through the mounting plate 28 and the two push-pull rods 29, thereby opening multiple fan plates 26. At this time, the two push-pull rods 29 approach each other, and the second leaf spring 30 undergoes elastic deformation. Through the second leaf spring 30, the fan plates 26 can be easily provided with a reset elastic thrust.

[0058] like Figure 7 As shown, as a preferred embodiment of the above, the bottom of the column 24 is provided with a polygonal sliding hole, the movable column 27 is polygonal in shape, the top of the movable column 27 is inserted into the polygonal sliding hole, and the top of the movable column 27 is provided with a polygonal disk 31, which is slidably installed in the polygonal sliding hole.

[0059] Multiple locking holes are provided on the side wall of the polygonal disk 31. A third leaf spring 32 is provided in the locking hole. A locking post 33 is provided on the third leaf spring 32. The locking post 33 is slidably locked in the locking hole. Multiple locking grooves 34 are provided on the inner wall of the polygonal sliding hole. The outer end of the locking post 33 is locked in the locking groove 34. Multiple limiting plates 35 are provided on the inner wall of the polygonal sliding hole. The limiting plates 35 are used to block and lock the polygonal disk 31.

[0060] Specifically, the third leaf spring 32 provides an elastic thrust to the locking post 33, thereby locking the locking post 33 in the slot 34. As the sludge accumulated on the multiple fan plates 26 gradually increases, the force of the sludge on the fan plates 26 gradually increases. When the weight of the sludge overcomes the elastic thrust of the third leaf spring 32, the fan plate 26 can pull the moving post 27 and the polygonal disk 31 downwards, and the locking post 33 springs back into the locking hole. After the sludge is discharged, the second leaf spring 30 can push the fan plate 26 to reset. At this time, the polygonal disk 31 is reset, and the limiting plate 35 can limit the movement position of the polygonal disk 31.

[0061] By employing a structure consisting of a polygonal disc 31, a third leaf spring 32, a locking post 33, and a locking groove 34, the fan plate 26 can be automatically opened only after sufficient sludge has been deposited. Furthermore, once the fan plate 26 is open, the second leaf spring 30 will push the fan plate 26 back to its original position and return multiple fan plates 26 to their closed state only after the sludge on the fan plate 26 has been completely discharged, thus facilitating the effect of inertial sludge discharge.

[0062] A method for using a sludge removal mechanism for sedimentation sludge at the bottom of a rainwater storage tank, the specific steps of which are as follows:

[0063] a. The second leaf spring 30 pushes the fan plate 26 to reset, and the multiple fan plates 26 are in a conical distribution state and block the mud collection cylinder 5. Rainwater enters the water storage tank body 1 for storage and settling, and the sludge in the rainwater naturally settles to the bottom of the inner wall of the water storage tank body 1.

[0064] b. After the sludge has settled for a specified time, the screw sleeve 18 is moved by the motor 16 and the lead screw 17. The screw sleeve 18 can drive the curved arm structure to move. The curved arm structure pulls the right-angle arm 2 to move in the radial direction along the water storage tank body 1. Multiple right-angle arms 2 move synchronously.

[0065] c. Multiple right-angle arms 2 drive multiple arc-shaped scraper blades 4 to deform and retract. The multiple arc-shaped scraper blades 4 simultaneously approach the sludge collection cylinder 5 and push the sludge deposited at the bottom of the water storage tank body 1 into the sludge collection cylinder 5, thereby realizing the sludge aggregation and collection work.

[0066] d. At specified intervals, multiple arc-shaped scraper blades 4 are repeatedly moved, and the settled sludge is continuously introduced into the sludge collection cylinder 5, and the sludge on the sealing plate 6 gradually increases.

[0067] e. When the weight of the sludge on the sealing plate 6 reaches the specified value, the sludge overcomes the elastic thrust of the third leaf spring 32 on the locking column 33, thereby causing the moving column 27 to move downward and multiple fan plates 26 to open, thus realizing automatic sludge discharge.

[0068] f. After the sludge on the fan plate 26 is discharged, the second leaf spring 30 can push the fan plate 26 to reset and re-seal the sludge collection cylinder 5.

[0069] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A sludge removal mechanism for the bottom sedimentation sludge of a rainwater storage tank, characterized in that, Includes a water storage tank body (1), and multiple right-angle arms (2) are provided inside the water storage tank body (1). The multiple right-angle arms (2) are arranged in a ring. The right-angle arms (2) move along the radial direction of the water storage tank body (1). The outer end of the right-angle arms (2) is provided with a first connecting shaft (3). Two arc-shaped scraper blades (4) are rotatably provided on the first connecting shaft (3). The ends of the arc-shaped scraper blades (4) on two adjacent right-angle arms (2) are rotatably connected to each other. The multiple arc-shaped scraper blades (4) form a ring. The bottom of the water storage tank body (1) is connected to a mud collection cylinder (5), and a sealing plate (6) is provided inside the mud collection cylinder (5). The bottom of the right-angle arm (2) is provided with a sliding groove, and a sliding plate (7) is slidably arranged in the sliding groove. Two auxiliary push plates (8) are relatively tilted and rotated on the sliding plate (7). The two auxiliary push plates (8) are respectively rotatably connected to two arc-shaped mud scrapers (4) on the first connecting shaft (3). The two auxiliary push plates (8) are tilted in opposite directions. A first leaf spring (9) is connected between the sliding plate (7) and the right-angle arm (2). The main body (1) of the water storage tank is vertically provided with a vertical cylinder (10) in the middle. Multiple sets of curved arm structures are provided on the outer wall of the vertical cylinder (10). The multiple sets of curved arm structures are distributed in a ring. The outer end of the curved arm structure is connected to the right-angle arm (2). The curved arm structure includes two first adjusting arms (11) rotatably mounted on the outer wall of the vertical cylinder (10). The two first adjusting arms (11) are parallel. The outer end of the first adjusting arm (11) is provided with a first gear (12). A second gear (13) is meshed on the first gear (12). A second adjusting arm (14) is provided on the second gear (13). The two second adjusting arms (14) are parallel. The outer end of the second adjusting arm (14) is rotatably mounted on the right-angle arm (2). A U-shaped outer plate (15) is sleeved on the outer side of the two first gears (12) and the two second gears (13). The first gear (12) and the second gear (13) are both rotatably mounted inside the U-shaped outer plate (15). A motor (16) is installed inside the vertical cylinder (10), and a lead screw (17) is installed at the output end of the motor (16), and a screw sleeve (18) is installed on the lead screw (17). Multiple transition discs (19) are rotatably provided on the outer wall of the vertical cylinder (10). The multiple transition discs (19) are arranged in a ring. Multiple third adjusting arms (20) are rotatably provided on the outer wall of the screw sleeve (18). The third adjusting arms (20) pass through the transition discs (19) and slide relative to each other. The outer end of the third adjusting arm (20) is rotatably provided with a fourth adjusting arm (21). The outer end of the fourth adjusting arm (21) is rotatably mounted on the first adjusting arm (11). The inner wall of the vertical cylinder (10) is set as a polygon, and multiple T-shaped positioning plates (22) are provided on the outer wall of the screw sleeve (18). The outer end of the T-shaped positioning plate (22) is vertically slidably installed at the corner of the inner wall of the vertical cylinder (10). Multiple right-angle fixing plates (23) are provided at the bottom of the vertical cylinder (10). The right-angle fixing plates (23) are located inside the mud collection cylinder (5). The top surface of the right-angle fixing plate (23) is set as a cone, and the outer end of the right-angle fixing plate (23) is fixed on the inner wall of the mud collection cylinder (5). The mud collection cylinder (5) is cone-shaped. The sealing plate (6) includes a column (24) fixed at the bottom of the vertical cylinder (10). Multiple second connecting shafts (25) are obliquely fixed on the outer wall of the column (24). The multiple second connecting shafts (25) are distributed in an umbrella shape. Two fan plates (26) are relatively obliquely rotatably arranged on the second connecting shafts (25). The fan plates (26) on adjacent second connecting shafts (25) are connected to each other. The multiple fan plates (26) form a cone shape and seal the mud collection cylinder (5).

2. The sludge removal mechanism for the bottom sedimentation layer of a rainwater storage tank as described in claim 1, characterized in that, The bottom of the column (24) is provided with a movable column (27), the top of the movable column (27) is slidably inserted into the column (24), the bottom of the movable column (27) is provided with multiple mounting plates (28), and two push-pull rods (29) are rotatably provided on the mounting plates (28). The outer ends of the two push-pull rods (29) are respectively rotatably connected to the side walls of the two fan plates (26) on the second connecting shaft (25), and a second leaf spring (30) is connected between the two push-pull rods (29).

3. The sludge removal mechanism for the bottom sedimentation layer of a rainwater storage tank as described in claim 2, characterized in that, The bottom of the column (24) is provided with a polygonal sliding hole. The movable column (27) is polygonal in shape. The top of the movable column (27) is inserted into the polygonal sliding hole. The top of the movable column (27) is provided with a polygonal disk (31). The polygonal disk (31) is slidably installed in the polygonal sliding hole. Multiple locking holes are provided on the side wall of the polygonal disc (31), and a third leaf spring (32) is provided in the locking hole. A locking post (33) is provided on the third leaf spring (32). The locking post (33) is slidably locked in the locking hole. Multiple locking grooves (34) are provided on the inner wall of the polygonal sliding hole. The outer end of the locking post (33) is locked in the locking groove (34). Multiple limiting plates (35) are provided on the inner wall of the polygonal sliding hole. The limiting plates (35) are used to block and lock the polygonal disc (31).

4. The method of using the sludge removal mechanism at the bottom of a rainwater storage tank as described in claim 3, the specific steps of which are as follows: a. The second leaf spring (30) pushes the fan plate (26) to reset, and multiple fan plates (26) are in a conical distribution state and block the mud collection cylinder (5). Rainwater enters the water storage tank body (1) for storage and settling. The sludge in the rainwater naturally settles to the bottom of the inner wall of the water storage tank body (1). b. After the sludge has settled for a specified time, the screw sleeve (18) is moved by the motor (16) and the screw (17). The screw sleeve (18) can drive the curved arm structure to move. The curved arm structure pulls the right-angle arm (2) to move in the radial direction of the water storage tank body (1). Multiple right-angle arms (2) move synchronously. c. Multiple right-angle arms (2) drive multiple arc-shaped scrapers (4) to deform and retract. Multiple arc-shaped scrapers (4) simultaneously approach the sludge collection cylinder (5) and push the sludge deposited at the bottom of the water storage tank body (1) into the sludge collection cylinder (5), thereby realizing the sludge aggregation and collection work. d. Repeatedly drive multiple arc-shaped scraper blades (4) to move at specified intervals, and continuously guide the settled sludge into the sludge collection cylinder (5), and gradually increase the amount of sludge on the sealing plate (6); e. When the weight of sludge on the sealing plate (6) reaches the specified value, the sludge overcomes the elastic thrust of the third leaf spring (32) on the locking column (33), thereby causing the moving column (27) to move downward and multiple fan plates (26) to open, thereby realizing automatic sludge discharge. f. After the sludge on the fan plate (26) is discharged, the second leaf spring (30) can push the fan plate (26) to reset and re-seal the sludge collection cylinder (5).

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