Rainwater collection and treatment device for municipal building water supply and drainage

Abstract

The invention discloses a rainwater collection and treatment device for municipal building water supply and drainage, and particularly relates to the technical field of rainwater collection and treatment, the rainwater collection and treatment device comprises a lower box body embedded in an underground space and flush with the ground, and the lower box body is internally provided with an upper box body which slides in a limiting mode in the vertical direction and adjusts the flow storage capacity in the lower box body. By arranging the treatment box capable of adjusting the water storage capacity and simultaneously driving the corresponding winding ropes through the four winding rods, synchronous winding traction of the four corners of the upper box body is achieved, the upper box body is driven to ascend and descend, during winding, the traction unit is pushed by the abutting piece in a reciprocating mode at the same time, and the abutting plate slides in the side plate after being pushed in an abutting mode; and the convex discs drive the winding rope connected with the convex discs to wind according to the moving path sequence, each convex disc triggers the corresponding abutting and pushing plate to slide once, the winding rope is evenly wound in a beat propelling mode, it is guaranteed that the winding rope is wound on the winding rod in order, posture unbalance, clamping or deviation during lifting is avoided, and the structure response consistency and the operation stability are improved.

Description

Technical Field

[0001] The invention relates to the technical field of rainwater collection and treatment, in particular to a rainwater collection and treatment device for water supply and drainage of municipal buildings. Background Art

[0002] With the continuous advancement of urbanization and the enhancement of ecological and environmental awareness, the utilization value of rainwater, as an important renewable water resource, in the water supply and drainage systems of municipal buildings is increasingly valued. Traditional municipal drainage systems are mostly dominated by "rapid discharge", resulting in a large amount of rainwater being discharged directly into the river through the rainwater pipe network. This not only fails to achieve the effective utilization of rainwater resources, but also increases the risk of urban waterlogging during heavy rains.

[0003] After searching, the invention patent with publication number CN108585297A discloses a rainwater recovery, storage and utilization device based on sewage treatment. The inclined collection plate can collect more rainwater. The received rainwater is directly processed through the filtration device and stored in the liquid storage tank after the steps of slag removal, sedimentation, adsorption and impurity removal.

[0004] Existing rainwater treatment devices in municipal buildings are usually fixed structures, and the volume of the treatment chamber cannot be dynamically adjusted according to the rainfall intensity. In the face of sudden heavy rainfall, excessive inflow is prone to cause system overflow, rainwater backflow, and equipment damage, and cannot meet the adaptability needs of different rainfall conditions; the opening of the traditional grille filter structure is not adjustable or the adjustment is delayed, resulting in insufficient flow capacity during heavy rain, which in turn affects the system's operational stability and rainwater treatment efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a rainwater collection and treatment device for water supply and drainage in municipal buildings to solve the problems mentioned in the above background technology.

[0006] The technical problems mainly solved by the present invention are:

[0007] The volume of existing municipal building rainwater treatment chambers cannot be dynamically adjusted according to rainfall intensity. In the face of sudden heavy rainfall, excessive inflow is prone to cause system overflow, rainwater backflow, and equipment damage, and cannot meet the adaptability requirements of different rainfall conditions.

[0008] The opening of the traditional grille filter structure cannot be adjusted, resulting in insufficient flow capacity during heavy rain.

[0009] The present invention can be achieved through the following technical solutions:

[0010] A rainwater collection and treatment device for water supply and drainage in municipal buildings, comprising a lower box embedded in an underground space and flush with the ground, an upper box disposed within the lower box for limited vertical sliding and adjusting the flow storage capacity within the lower box, a cross support frame mounted on the ground disposed on the exterior of the upper box, and a synchronous traction assembly disposed within the cross support frame for smoothly raising and lowering the upper box;

[0011] The synchronous traction assembly includes four synchronously rotating reeling rods, each of which is wound with a winch rope for simultaneously lifting the upper box, and a side plate is provided on the outer side of the end of each reeling rod, and a traction unit for reciprocating traction of the winch rope is slidably provided on the bottom of each side plate;

[0012] The traction unit includes a push plate, one end of which is provided with an end block with a push surface, and the other end of which is provided with a gripping member that is in rolling contact with the hoisting rope. A spring is sleeved on the outside of the push plate, and both ends of the spring are fixed to the end block and the side plate respectively.

[0013] A push piece is fixedly provided on the outside of each of the winding rods;

[0014] The push member includes a driving disk, and a plurality of annularly arranged convex disks are provided on the outer side of the end portion of the driving disk, and each convex disk is in abutment contact with the end block in turn;

[0015] A liquid level sensor is provided on the top of the inner cavity of the upper box body, and a vertically arranged grid 2 is installed in the inner cavity of the upper box body;

[0016] The inner cavity of the lower box body is installed with a grille 1, and the grille 1 and the grille 2 are vertically slidably arranged. The interior of the upper box body is provided with a flow regulating unit for regulating the openings of the grille 2 and the grille 1.

[0017] A further technical improvement of the present invention is that the push member includes an electric clamping jaw arranged on the push plate, and rolling blocks are rotatably provided on the two driving brackets of the electric clamping jaw, and the rolling blocks are provided with rolling grooves used in conjunction with the hoisting rope.

[0018] A further technical improvement of the present invention is that a main bevel gear driven by a drive motor is installed in the middle of the bottom surface of the cross support frame, a drive box is provided on the outside of the main bevel gear, and bevel gears are rotatably installed on the four inner wall surfaces of the drive box, and the axis of the bevel gear is fixed to the end of the corresponding winding rod.

[0019] A further technical improvement of the present invention is that the flow regulating unit includes a filter screen arranged on one side edge of the grille 2, and a plurality of vertically arranged fixed bars are provided in the grille 2, and a sliding bar 2 is provided between two adjacent fixed bars for sliding. The sliding bar 2 is in frictional contact with the filter screen, and a connecting rod is provided on the outer side of the top of each sliding bar 2, and the ends of the connecting rods are commonly connected to a T-shaped plate, and an adjusting cylinder connected to the T-shaped plate is installed on the top of the inner cavity of the lower box body.

[0020] A further technical improvement of the present invention is that: the layout structure of grille 1 and grille 2 is the same, and a sliding bar 1 is provided between the two fixed bars in grille 1, and a fitting groove is provided on the side of sliding bar 1 close to sliding bar 2, and a roller is installed in the fitting groove, and the support seat on the roller is fixed to sliding bar 2.

[0021] A further technical improvement of the present invention is that: a second corrugated sealing gasket is provided at the bottom end of the upper box body, and the end of the second corrugated sealing gasket is fixed to the bottom of the inner cavity of the lower box body;

[0022] A corrugated sealing gasket 1 is provided on the top of the upper box body, and the end of the corrugated sealing gasket 1 is fixed to the outer edge of the top surface of the lower box body.

[0023] A further technical improvement of the present invention is that: a limiting groove is provided on the inner wall surface of the lower box body, and a limiting bar is installed on the outer wall surface of the upper box body so as to slide with the limiting groove.

[0024] A further technical improvement of the present invention is that: an agitator is installed on one side of the bottom of the inner cavity of the lower box, and a mud discharge outlet is provided on one side below the agitator;

[0025] A recycling pump is installed on the other side of the bottom of the lower box cavity. The liquid outlet of the recycling pump is connected to a drainage pipeline through a three-way electric control valve. The liquid outlet of the drainage pipeline is respectively connected to discharge port 1 and discharge port 2.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. By setting up a treatment box with adjustable water storage capacity and simultaneously driving the corresponding winch ropes through four winding rods, the four corners of the upper box body can be synchronously wound and pulled, driving the upper box body to rise and fall, expanding the treatment volume, and adapting to the needs of different rainfall conditions; during traction and winding, the traction unit is simultaneously pushed back and forth by the push member. After being pushed by the push plate, it slides inside the side plate and drives the connected winch rope to reel in the sequence of the moving path. Each convex disc triggers the push plate to slide once, so that the winch rope is evenly wound in a beat-propelled manner, ensuring that the winch rope is wound on the reel rod in an orderly manner, avoiding posture imbalance, jamming or offset during lifting and lowering, and improving the consistency of structural response and operational stability;

[0028] 2. By setting up vertically sliding grilles 1 and 2, the system adapts to changes in the capacity of the treatment box. When grilles 1 and 2 slide open, the adjusting cylinder drives the T-shaped plate and pushes sliding bar 2, changing the distance between sliding bar 2 and two adjacent fixed bars, thereby changing the opening of grille 1. Because sliding bar 2 and sliding bar 1 achieve lifting and limiting sliding through rollers, when sliding bar 2 slides, sliding bar 1 moves synchronously within grille 1, thereby synchronously adjusting the opening area of ​​grilles 1 and 2, significantly improving rainwater flow capacity, effectively responding to the high flow treatment needs brought about by sudden heavy rainfall, and achieving adaptive treatment of different rainfall intensities;

[0029] 3. By setting the corrugated sealing gasket 1 and the corrugated sealing gasket 2, when the upper box body slides upward, the corrugated sealing gasket 1 forms a bottom sealing structure that can be deformed with the lifting action, and the corrugated sealing gasket 2 forms a flexible sealing structure for the top gap area. Both are in an elastically stretched state, which can adapt to the lifting and displacement changes of the structure while maintaining good sealing performance, preventing rainwater leakage or external foreign matter from entering the processing chamber, and linking the flexible seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0031] Figure 1 Schematic diagram of the external structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the cross support frame of the present invention;

[0033] Figure 3 For the present invention Figure 2 A partial enlarged view of point A in the middle;

[0034] Figure 4 This is a schematic structural diagram of the drive disc and end block of the present invention;

[0035] Figure 5 Schematic diagram of the internal structure of the lower box and the upper box of the present invention;

[0036] Figure 6 This is a schematic diagram of the installation structure of the rolling block and the electric clamping claw of the present invention;

[0037] Figure 7 This is a schematic structural diagram of the grille 2 of the present invention;

[0038] Figure 8 Schematic diagram of the structural connection between the first and second sliding bars of the present invention.

[0039] In the figure: 1. Lower box body; 2. Upper box body; 3. Limit bar; 4. Discharge port 1; 5. Discharge port 2; 6. Hoist rope; 7. Cross support frame; 8. Winding rod; 9. Drive box; 10. Bevel gear; 11. Drive plate; 12. Side plate; 13. Push plate; 14. Electric clamp; 15. Spring; 16. End block; 17. Convex plate; 18. Rolling block; 19. Liquid level sensor; 20. Corrugated gasket 1; 21. Corrugated gasket 2; 22. Limit groove; 23. Adjustment cylinder; 24. Grille 2; 25. Grille 1; 26. Agitator; 27. Recycling pump; 28. Drain pipe; 29. ​​T-plate; 30. Connecting rod; 31. Sliding bar 2; 32. Filter screen; 33. Fitting groove; 34. Roller; 35. Sliding bar 1. DETAILED DESCRIPTION

[0040] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0041] See also Figures 1-8 As shown, the present invention provides a rainwater collection and treatment device for water supply and drainage of municipal buildings, including a treatment box, which includes a lower box body 1 embedded in an underground space and flush with the ground. A water inlet for rainwater from municipal buildings is provided on one side of the bottom of the lower box body 1. An upper box body 2 is provided within the lower box body 1, which slides in a limited vertical direction and adjusts the flow storage capacity within the lower box body 1. A cross support frame 7 is installed on the outside of the upper box body 2 and is installed on the ground. A synchronous traction assembly is provided within the cross support frame 7 to smoothly raise and lower the upper box body 2.

[0042] The synchronous traction assembly includes four synchronously rotating reeling rods 8. The edge of each reeling rod 8 is wound with a hoisting rope 6 for simultaneously lifting the upper box 2. A side plate 12 is provided on the outer side of the end of each reeling rod 8. The bottom of each side plate 12 is penetrated by a traction unit that slides through and guides the reciprocating traction of the hoisting rope 6.

[0043] The traction unit includes a push plate 13, one end of which is provided with an end block 16 with a push surface, and the other end of which is provided with a gripping member that is in rolling contact with the hoist rope 6. A spring 15 is sleeved on the outside of the push plate 13, and the two ends of the spring 15 are respectively fixed to the end block 16 and the side plate 12;

[0044] Each reeling rod 8 is fixed with a push piece on its outside;

[0045] The push member includes a driving disc 11, and a plurality of annularly arranged convex discs 17 are provided on the outer side of the end portion of the driving disc 11, and each convex disc 17 is in contact with the end block 16 in turn;

[0046] A liquid level sensor 19 is provided on the top of the inner cavity of the upper box body 2, and a vertically arranged grille 24 is installed in the inner cavity of the upper box body 2;

[0047] The inner cavity of the lower box body 1 is installed with a grille 25, which is vertically slidable with the grille 2 24. The interior of the upper box body 2 is provided with a flow regulating unit for adjusting the openings of the grille 2 24 and the grille 1 25.

[0048] First, embed the lower box 1 in the ground and install the cross support frame 7 on the ground. Figure 1 In the arrangement shown, in the initial state, the upper box body 2 is installed in the lower box body 1. At this time, the upper box body 2 is flush with the ground. At this time, the flow storage capacity of the upper box body 2 is the minimum capacity. When there is a lot of rain, the rainwater covers the top of the upper box body 2 in the initial state. At this time, the liquid level sensor 19 receives an electrical signal and drives the synchronous traction assembly to move under the control of the system;

[0049] That is, the four winding rods 8 pull and move synchronously, and the hoisting rope 6 is wound at the same time, so that the upper box body 2 is moved upward at the same time at four points, ensuring the consistency of its lifting and lowering, ensuring its smooth movement, forming a height increment with the lower box body 1, expanding the processing volume, and realizing the synchronous limited lifting and lowering of the upper box body 2, thereby avoiding problems such as stagnation, structural tilt or poor operation caused by single-point force or offset;

[0050] While winding, the traction unit is pushed by the push member to work reciprocatingly, that is, the convex plate 17 on the driving disc 11 abuts against the end block 16. At this time, the push plate 13 is pushed by the abutment and slides in the side plate 12, and drives the hoisting rope 6 connected thereto to be wound in sequence according to the moving path. The driving disc 11 rotates continuously, and each convex plate 17 triggers the push plate 13 to slide once, so that the hoisting rope 6 is evenly wound in a beat-propelled manner, ensuring that the hoisting rope 6 is wound around the winding rod 8 in an orderly manner to avoid overlapping and piling up. The moving winding process is intermittent and step-by-step, ensuring that the winding length can be controlled each time.

[0051] By lifting and lowering, the height between the upper box 2 and the lower box 1 increases, thereby expanding the internal space available for rainwater storage and treatment, adapting to rainfall conditions of different intensities or durations, enhancing the system's ability to regulate and store sudden heavy rainfall, and thus achieving dynamic adjustment of the overall water storage capacity of the treatment box;

[0052] In the event of sudden heavy rainfall, the flow regulating unit drives grille 1 25 and grille 2 24 synchronously. At this time, the opening areas of grille 1 25 and grille 2 24 are expanded at the same time, which significantly increases the flow cross-section of rainwater, thereby improving the overall water flow capacity, reducing the water accumulation pressure at the front end, and realizing the rapid release and controlled discharge of instantaneous rainwater flow, thereby improving the system's response capability and drainage efficiency to sudden heavy rainfall, and solving the problem that existing rainwater treatment devices cannot dynamically adjust capacity, flow and synchronously regulate according to rainfall conditions.

[0053] See Figure 6 As shown, the push member includes an electric clamp 14 provided on the push plate 13, and two driving brackets of the electric clamp 14 are rotatably provided with a rolling block 18, and the rolling block 18 is provided with a rolling groove for use with the hoist rope 6;

[0054] Initially, the electric clamp 14 is open and the hoisting rope 6 is located in the two open rolling blocks 18. Then the electric clamp 14 drives the two rolling blocks 18 to approach each other, and the two rolling blocks 18 fit the outer surface of the hoisting rope 6, thereby realizing the winding of the hoisting rope 6 according to the moving path.

[0055] See Figure 2 As shown, a main bevel gear driven by a drive motor is installed in the middle of the bottom surface of the cross support frame 7, and a drive box 9 is provided outside the main bevel gear. Bevel gears 10 are rotatably installed on the four inner wall surfaces of the drive box 9, and the axis of the bevel gear 10 is fixed to the end of the corresponding winding rod 8;

[0056] When the main bevel gear rotates, the four bevel gears 10 in the drive box 9 are driven synchronously, driving the corresponding winding rod 8 to realize synchronous rotation and winding action, and then driving the connected hoisting rope 6 to reel at the same time, realizing four-point lifting and lowering synchronous adjustment of the upper box body 2.

[0057] See Figure 5 、 Figure 7 and Figure 8 As shown, the flow regulating unit includes a filter screen 32 provided on one side edge of the second grille 24. A plurality of vertically arranged fixed bars are provided in the second grille 24. A second sliding bar 31 is provided between two adjacent fixed bars for sliding. The second sliding bar 31 is in frictional contact with the filter screen 32. A connecting rod 30 is provided on the outer side of the top of each second sliding bar 31. The ends of the connecting rod 30 are commonly connected to a T-shaped plate 29. An adjusting cylinder 23 connected to the T-shaped plate 29 is installed on the top of the inner cavity of the lower box body 1.

[0058] The layout structure of grille 1 25 is the same as that of grille 2 24 , and a sliding bar 1 35 is provided between the two fixed bars in grille 1 25 . A fitting groove 33 is provided on the side of sliding bar 1 35 close to sliding bar 2 31 . A roller 34 is installed in the fitting groove 33 . The support seat on roller 34 is fixed to sliding bar 2 31 , and the upper fixed bar slides and fits with the lower fixed bar.

[0059] Initially, the upper box body 2 and the lower box body 1 are relatively closed (closed), and the positions of the second sliding bar 31 and the first sliding bar 35 are in the closed position by default. The grille opening is small, which is suitable for slow infiltration and filtration of low-flow rainwater.

[0060] When the system detects heavy rainfall, the upper box 2 rises, increasing the capacity of the treatment box. At this time, the grille 1 25 and the grille 2 24 slide vertically to prepare to open the large flow channel. At the same time, the liquid level sensor 19 further controls the operation of the regulating cylinder 23 through the signal.

[0061] The regulating cylinder 23 is activated and drives the T-shaped plate 29 to push the sliding bar 2 31, thereby changing the distance between the sliding bar 2 31 and the two adjacent fixed bars, thereby changing the opening of the grille 1 25. The sliding bar 2 31 removes impurities on the surface of the filter 32 during daily opening and closing. While adjusting the flow-through capacity of the grille, it can effectively reduce the probability of clogging of the filter 32, reduce the frequency of manual maintenance, and improve the automatic operation capability and long-term stability of the system. Since the sliding bar 2 31 and the sliding bar 1 35 are lifted and limited by the roller 34, when the sliding bar 2 31 slides, the sliding bar 1 35 moves synchronously in the grille 1 25, thereby synchronously adjusting the opening area of ​​the grille 1 25 and the grille 2 24, significantly improving the rainwater flow-through capacity, effectively responding to the high flow processing requirements brought about by sudden heavy rainfall, and realizing adaptive processing of different rainfall intensities.

[0062] See Figure 5 As shown, a second corrugated sealing gasket 21 is provided at the bottom end of the upper box body 2, and the end of the second corrugated sealing gasket 21 is fixed to the bottom of the inner cavity of the lower box body 1;

[0063] A corrugated sealing gasket 20 is provided on the top of the upper box body 2, and the end of the corrugated sealing gasket 20 is fixed to the outer edge of the top surface of the lower box body 1;

[0064] The second corrugated sealing gasket 21 and the first corrugated sealing gasket 20 are flexible gaskets with a corrugated structure and have good elasticity, pressure resistance and sealing properties.

[0065] When the upper box body 2 slides upward, the corrugated sealing gasket 1 20 forms a bottom sealing structure that can be deformed with the lifting action, and the corrugated sealing gasket 21 forms a flexible sealing structure in the top gap area, both of which are in an elastically stretched state. They can adapt to the lifting displacement changes of the structure while maintaining good sealing performance, preventing rainwater leakage or external foreign matter from entering the processing chamber;

[0066] The inner wall of the lower box body 1 is provided with a limit groove 22, and the outer wall of the upper box body 2 is installed with a limit bar 3 that slides with the limit groove 22. Through its limit sliding, the upper box body 2 is guided when it is lifted and lowered, effectively avoiding structural deflection or jamming;

[0067] An agitator 26 is installed on one side of the bottom of the inner cavity of the lower box body 1, and a mud discharge outlet is provided on one side below the agitator 26 to facilitate the removal of deposited impurities;

[0068] A recycling pump 27 is installed on the other side of the bottom of the inner cavity of the lower box body 1. The liquid outlet of the recycling pump 27 is connected to a drainage pipe 28 through a three-way electric control valve. The liquid outlet of the drainage pipe 28 is connected to the discharge port 1 4 and the discharge port 2 5 respectively.

[0069] The discharge port 14 is used to guide the clean water into the rainwater drainage system;

[0070] Discharge outlet 2 5 is used to transport rainwater to reuse scenarios such as green irrigation, toilet flushing, and landscape water replenishment. The path is switched with the help of a three-way electric control valve to achieve intelligent diversion and allocation of multi-purpose rainwater resources.

[0071] When in use, the present invention provides a treatment box with adjustable water storage capacity, and drives the corresponding hoisting rope 6 simultaneously through the four winding rods 8 to realize synchronous winding and traction of the four corners of the upper box body 2, driving the upper box body 2 to rise and fall, and expanding the processing volume. When winding, the traction unit is simultaneously pushed back and forth by the push member, and the push plate 13 slides in the side plate 12 after being pushed by the abutment, and drives the hoisting rope 6 connected thereto to wind up in the order of the moving path. Each convex disc 17 triggers the push plate 13 to slide once, so that the hoisting rope 6 is evenly wound in a beat-propelled manner, ensuring that the hoisting rope 6 is orderly wound on the winding rod 8, avoiding posture imbalance, jamming or offset during lifting and lowering, and improving the consistency of structural response and operational stability.

[0072] By providing vertically sliding grille 1 25 and grille 2 24, changes in the capacity of the treatment box can be accommodated. When grille 1 25 and grille 2 24 slide open, the regulating cylinder 23 drives the T-shaped plate 29 and pushes the sliding bar 2 31, changing the distance between the sliding bar 21 and the two adjacent fixed bars, thereby changing the opening of grille 1 25. Since the sliding bar 21 and the sliding bar 1 35 are lifted and lowered by the roller 34, when the sliding bar 21 slides, the sliding bar 1 35 moves synchronously within the grille 1 25, thereby synchronously adjusting the opening area of ​​the grille 1 25 and the grille 2 24, significantly improving the rainwater flow capacity, effectively responding to the high flow treatment requirements brought about by sudden heavy rainfall, and achieving adaptive treatment of different rainfall intensities.

[0073] By setting the corrugated sealing gasket 1 20 and the corrugated sealing gasket 2 21, when the upper box body 2 slides upward, the corrugated sealing gasket 1 20 forms a bottom sealing structure that can be deformed with the lifting action, and the corrugated sealing gasket 2 21 forms a flexible sealing structure for the top gap area, both of which are in an elastically stretched state, and can adapt to the lifting and displacement changes of the structure while maintaining good sealing performance, prevent rainwater leakage or external foreign matter from entering the processing chamber, and link the flexible seal.

[0074] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A rainwater collection and treatment device for water supply and drainage in municipal buildings, characterized by: The invention comprises a lower box body (1) embedded in an underground space and flush with the ground, an upper box body (2) is provided in the lower box body (1) for limiting sliding along a vertical direction and adjusting the flow storage capacity in the lower box body (1), a cross support frame (7) installed on the ground is provided on the outside of the upper box body (2), and a synchronous traction component for smoothly raising and lowering the upper box body (2) is provided in the cross support frame (7); The synchronous traction assembly comprises four synchronously rotating reeling rods (8), the edge of each reeling rod (8) is wound with a hoisting rope (6) for simultaneously lifting the upper box (2), and the outer side of the end of each reeling rod (8) is provided with a side plate (12), and the bottom of each side plate (12) is penetrated by a traction unit for slidingly guiding the reciprocating traction of the hoisting rope (6); The traction unit comprises a push plate (13), one end of the push plate (13) is provided with an end block (16) with a push surface, and the other end of the push plate (13) is provided with a gripping member that is in rolling contact with a hoisting rope (6), the outer portion of the push plate (13) is provided with a spring (15), and the two ends of the spring (15) are respectively fixed to the end block (16) and the side plate (12); A push piece is fixedly provided on the outside of each of the winding rods (8); The push member comprises a driving disc (11), a plurality of annularly arranged convex discs (17) are provided on the outer side of the end of the driving disc (11), and each convex disc (17) is in abutment contact with the end block (16) in sequence; A liquid level sensor (19) is provided on the top of the inner cavity of the upper box body (2), and a vertically arranged grid 2 (24) is installed in the inner cavity of the upper box body (2); The inner cavity of the lower box body (1) is provided with a grille 1 (25), and the grille 1 (25) and the grille 2 (24) are arranged to slide vertically. The interior of the upper box body (2) is provided with a flow regulating unit for regulating the openings of the grille 2 (24) and the grille 1 (25).

2. A rainwater collection and treatment device for water supply and drainage of municipal buildings according to claim 1, characterized in that: The push member comprises an electric clamp (14) arranged on a push plate (13), and rolling blocks (18) are rotatably arranged on two driving brackets of the electric clamp (14). The rolling blocks (18) are provided with rolling grooves used in conjunction with the hoisting rope (6).

3. A rainwater collection and treatment device for water supply and drainage of municipal buildings according to claim 1, characterized in that: A main bevel gear driven by a driving motor is installed in the middle of the bottom surface of the cross support frame (7), a driving box (9) is provided outside the main bevel gear, and four inner wall surfaces of the driving box (9) are rotatably mounted with bevel gears (10), and the axis of the bevel gear (10) is fixed to the end of the corresponding winding rod (8).

4. A rainwater collection and treatment device for water supply and drainage of municipal buildings according to claim 1, characterized in that: The flow regulating unit comprises a filter screen (32) arranged at one side edge of the second grille (24), a plurality of vertically arranged fixed bars are provided in the second grille (24), a sliding bar (31) is provided between two adjacent fixed bars, the sliding bar (31) is in frictional contact with the filter screen (32), a connecting rod (30) is provided on the outer side of the top of each second sliding bar (31), the ends of the connecting rod (30) are commonly connected to a T-shaped plate (29), and an adjusting cylinder (23) connected to the T-shaped plate (29) is installed on the top of the inner cavity of the lower box (1).

5. A rainwater collection and treatment device for water supply and drainage of municipal buildings according to claim 4, characterized in that: The arrangement structure of the grille 1 (25) is the same as that of the grille 2 (24), and a sliding bar 1 (35) is provided between the two fixed bars in the grille 1 (25), and a fitting groove (33) is provided on the side of the sliding bar 1 (35) close to the sliding bar 2 (31), and a roller (34) is installed in the fitting groove (33), and a support seat on the roller (34) is fixed to the sliding bar 2 (31).

6. A rainwater collection and treatment device for water supply and drainage of municipal buildings according to claim 1, characterized in that: The bottom end of the upper box body (2) is provided with a second corrugated sealing gasket (21), and the end of the second corrugated sealing gasket (21) is fixed to the bottom of the inner cavity of the lower box body (1); A corrugated sealing gasket (20) is provided on the top of the upper box body (2), and the end of the corrugated sealing gasket (20) is fixed to the outer edge of the top surface of the lower box body (1).

7. A rainwater collection and treatment device for water supply and drainage of municipal buildings according to claim 1, characterized in that: The inner wall surface of the lower box body (1) is provided with a limiting groove (22), and the outer wall surface of the upper box body (2) is provided with a limiting strip (3) which is slidably arranged with the limiting groove (22).

8. The rainwater collection and treatment device for water supply and drainage of municipal buildings according to claim 1 is characterized in that: A stirrer (26) is installed on one side of the bottom of the inner cavity of the lower box (1), and a mud discharge outlet is provided on one side below the stirrer (26); A recycling pump (27) is installed on the other side of the bottom of the inner cavity of the lower box (1), and the liquid outlet end of the recycling pump (27) is connected to a drainage pipeline (28) through a three-way electric control valve, and the liquid outlet end of the drainage pipeline (28) is respectively connected to the discharge port 1 (4) and the discharge port 2 (5).

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