CN114215288B

CN114215288B - Sponge city rain drop pipe outlet pipe height difference replacement well

Info

Publication number: CN114215288B
Application number: CN202111554700.1A
Authority: CN
Inventors: 陈思恩; 何永恒; 陈欣泉
Original assignee: Guangdong Urban Architectural Planning And Design Co ltd
Current assignee: Guangdong Urban Architectural Planning And Design Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2023-04-14
Anticipated expiration: 2041-12-17
Also published as: CN114215288A

Abstract

The utility model relates to a sponge city rainfall pipe home improvement pipe discrepancy in elevation replacement well relates to well structure field, and it includes the cistern that is linked together with the pipe of registering one's residence, keep away from the cistern bottom the pipe of registering one's residence one side has been seted up first brick and has been built the opening by laying bricks or stones, first brick is built open-ended diapire and is compared the diapire of pipe of registering one's residence is low, cistern one side is provided with handles the pond, the cistern is close to it is provided with first overflow mouth to handle pond one side, it sets up towards the second brick on biological detention facility top layer and builds the opening by laying bricks or stones to handle pond one side, open-ended diapire height is built by laying bricks or stones to the second brick is greater than or equal to biological detention facility top layer height. This application can be with the leading-in biological facility top layer that is detained of the water of going out to house in the pipe of going out to have the characteristics that enlarge the effective volume in sponge city to the design that makes the sponge city fully falls the effect of reality.

Description

Sponge city rain drop pipe outlet pipe height difference replacement well

Technical Field

The application relates to the field of well structures, in particular to a sponge city rain drop pipe outlet pipe height difference replacement well.

Background

The outlet pipe is a horizontal drainage pipeline from the inside of a building to an outdoor inspection well, the outlet pipe needs to correspond to different burying depths according to different building monomers, biological detention facilities are also arranged around the building monomers under the construction of the sponge city, and when the design volume of the sponge city is far larger than rainfall, redundant design volumes are invalid volumes, so that the design volume of the sponge city cannot become the effective volume when raining.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: in the single building units, the height of the outlet pipe of each single building unit is different due to the influence of factors such as terrain, projects and the like, the depth of the surface water storage layer of the bioretention facility is limited, and the height of the outlet pipe is often lower than the height of the surface water storage layer of the peripheral bioretention equipment, so that the aim of expanding the effective volume of the sponge city is difficult to achieve.

In view of the above-mentioned related technologies, the inventor believes that the effective volume of the sponge city cannot be increased by the outlet water in the outlet pipe due to the height difference between the outlet pipe and the surface aquifer, and needs further improvement.

Disclosure of Invention

In order to the leading-in surface aquifer of the water of going out the family among the pipe of going out the family, enlarge the effective volume in sponge city, this application provides a sponge city raindrop pipe discrepancy in elevation replacement well.

The application provides a sponge city rain drop pipe goes out household pipe discrepancy in elevation replacement well adopts following technical scheme:

the utility model provides a sponge city raindrop pipe outlet pipe difference in height replacement well, includes the cistern that is linked together with outlet pipe, keep away from the cistern bottom outlet pipe one side has been seted up first brick and has been built the opening by laying bricks or stones, open-ended diapire ratio is built by laying bricks or stones to first brick the diapire of outlet pipe is low, cistern one side is provided with handles the pond, the cistern is close to it is provided with first overflow mouth to handle pond one side, handle pond one side and set up the second brick towards biological detention facility top layer and build the opening by laying bricks or stones, open-ended diapire height is built by laying bricks or stones to the second brick is greater than or equal to the height on biological detention facility top layer.

Through adopting above-mentioned technical scheme, rivers in the play household pipe are to the cistern in, partly water in the cistern flows out to the original soil ground from first brick masonry opening part, partly storage is in the cistern, when the water yield in the play household pipe is more, the water collection in the cistern is full and flow to the processing pond from first overflow mouth and handle, water collection in the processing pond flows to the biological detention facility top layer from second brick masonry opening after full, thereby can be with leading-in to the biological detention facility top layer in the water in the play household pipe, in order to reach the effect that improves the effective volume in sponge city, make the sponge city fully fall to the real department.

Preferably, the bottom of the treatment pool is absent and a gravel layer is arranged inside the treatment pool.

Through adopting above-mentioned technical scheme, through setting up the gravel layer, the scouring force of rivers not only can be slowed down to the gravel layer, reaches the effect of energy dissipation, can also play the effect of drainage, and the rivers after the filtration are infiltrated to former soil horizon again in, the structure on the former soil horizon of protection that can be better.

Preferably, an overflow pipe is embedded in the gravel layer, an opening at one end of the overflow pipe is positioned between the surface of the gravel layer and the bottom wall of the first overflow port, and the other end of the overflow pipe penetrates out of the bottom of one side of the treatment pool and extends to the surface layer of the biological retention facility.

Through adopting above-mentioned technical scheme, the installation overflow pipe, when the water in handling the pond is too much, can directly flow into in the overflow pipe and flow into the biological detention facility top layer, reduce because of the water in handling the pond too much and flow to the cistern outside and rivers from the circumstances of the interior refluence of family pipe, improve overall structure's stability and reliability.

Preferably, the overflow pipe is a blind pipe.

By adopting the technical scheme, the blind pipe mainly takes synthetic fibers, plastics, synthetic rubber and the like as raw materials, various-shaped and multifunctional geotechnical products are manufactured by different process methods, the geotechnical products have extremely high surface water seepage capability and internal water passing capability, rainwater can be absorbed and filtered by the gravel layer, and then collected to the blind pipe for discharge, and the drainage capability of the gravel layer is improved.

Preferably, the cistern diapire is than the diapire of household pipe is low, the cistern bottom is installed and is cut dirty basket, the top surface that cuts dirty basket than first brick masonry opening top wall height.

Through adopting above-mentioned technical scheme, set up and cut dirty basket, can intercept the impurity in the rivers, reduce the condition that first brick masonry opening blockked up.

Preferably, the cistern is close to the lateral wall of handling the pond and has seted up the sliding tray, the inside slidable mounting of sliding tray has the pressurized-water board, the pressurized-water board bottom is rotated and is connected with the filter screen, the filter screen keep away from with the pressurized-water board rotates the one end of connecting and installs the lifting rope, the lifting rope is kept away from filter screen one end slides and passes the top and the movable sleeve of pressurized-water board are established the cistern top.

Through adopting above-mentioned technical scheme, set up pressurized-water board, filter screen and lifting rope, can filter rivers, simultaneously, the rubbish that filters out collects in the filter screen, through controlling the lifting rope, can support the filter screen and press in the pressurized-water board, flatten among the rubbish and extrude the moisture in the rubbish to can be convenient for take out rubbish and handle, the filter effect of guarantee filter screen.

Preferably, the bottom of the pressure water plate is rotatably installed with a rotating shaft fixedly connected with the filter screen, accommodating holes are formed in two end faces of the rotating shaft, elastic pieces are installed on the bottom walls of the accommodating holes, the elastic pieces are far away from one ends of the bottom walls of the accommodating holes, positioning rods are installed at one ends of the bottom walls of the accommodating holes in a sliding mode and are installed in the accommodating holes in a sliding mode, and positioning holes extending into one ends of the elastic pieces are formed in two side walls of the sliding grooves.

Through adopting above-mentioned technical scheme, set up pivot, elastic component and locating lever, can fix for the position that the pressurized-water plate is in the cistern bottom, when controlling the lifting rope and pressing the filter screen to pressurized-water plate one side, the position of pressurized-water plate can stabilize, through the setting of elastic component, can extrude the pressurized-water plate at the filter screen to after flattening rubbish, take out filter screen, pressurized-water plate and rubbish together, be convenient for clear up rubbish.

Preferably, one end of the positioning rod, which is embedded into the positioning hole, is provided with a thread, and the positioning hole is a threaded hole.

Through adopting above-mentioned technical scheme, when the lifting rope pulling filter screen and the same landing of pressurized-water plate to the cistern bottom, in the fractional embedding locating hole of locating lever, the lifting rope continues to transfer, and the filter screen revolutes the rotation of axes to the horizontality under the action of gravity, and at this moment, the pivot drives the locating lever and rotates together, makes the locating lever spiral twist in the locating hole, makes during the locating lever is difficult for deviating from the locating hole, improves the steadiness of locating plate.

Preferably, a plurality of water pressing blocks are installed on one side, close to the center of the reservoir, of the water pressing plate, the water pressing blocks are conical, and the height of the water pressing blocks is gradually reduced from the top to the bottom of the water pressing plate.

Through adopting above-mentioned technical scheme, the rubbish in the extrusion filter screen that the pressurized water piece can be fine to reduce the volume that occupies of rubbish, and reduce the moisture in the rubbish, be convenient for transport and refuse disposal.

Preferably, a handle for the lifting rope to pass through is installed at the top of the water pressing plate, and a sliding roller is rotatably installed at the top of the handle.

Through adopting above-mentioned technical scheme, set up handle and smooth roller, the handle can supply people to take the pressurized-water board, can also supply the lifting rope to pass simultaneously to restriction pressurized-water board position, in addition, the smooth roller can reduce the frictional force between lifting rope and the handle, improves the flexibility of lifting rope, and the lifting rope is controlled to the people of being convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the water storage tank and the treatment tank, water in the household pipe can be collected into the water storage tank, and then is guided into the surface layer of the bioretention facility through the treatment tank, so that the effect of improving the effective volume of the sponge city is achieved;

2. by arranging the gravel layer, the water flow is treated and then flows to the original soil layer and the surface layer of the biological retention facility, so that the original soil layer and the surface layer of the biological retention facility can be better protected;

3. by arranging the overflow pipe, the capacity of the treatment pool for treating water flow can be improved, the condition of water flow overflow or backflow is reduced, and the stability and reliability of the replacement well are improved;

4. through setting up pressurized-water board, filter screen and lifting rope, can filter rivers, simultaneously, be convenient for clear up the rubbish after filtering.

Drawings

FIG. 1 is a schematic sectional view of the entire structure of embodiment 1 of the present application;

FIG. 2 is a schematic sectional view of the whole structure of embodiment 2 of the present application;

FIG. 3 is a schematic view of an installation structure of a filter screen and a water pressing plate in embodiment 2 of the present application;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Description of the reference numerals:

1. a reservoir; 10. an out-of-home pipe; 11. building an opening by using a first brick; 2. a treatment tank; 20. a first overflow port; 21. building an opening by using a second brick; 3. a gravel layer; 4. an overflow pipe; 5. a sewage intercepting basket; 6. a water pressing plate; 60. a sliding groove; 61. a filter screen; 62. a lifting rope; 620. a limiting post; 621. a limiting ring; 63. pressing water blocks; 64. a handle; 65. a sliding roller; 7. a rotating shaft; 70. an accommodation hole; 71. an elastic member; 72. positioning a rod; 73. and (7) positioning the holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses sponge city rain drop pipe outlet pipe discrepancy in elevation replacement well.

Example 1:

referring to fig. 1, the sponge city rain drop pipe home outlet pipe elevation difference replacement well comprises a reservoir 1, wherein one side of the reservoir 1 is communicated with a home outlet pipe 10. A first brick masonry opening 11 is formed in the bottom of the water storage pool 1 and on one side, far away from the household pipe 10, of the water storage pool 1, the bottom wall of the water storage pool 1 is lower than the bottom wall of the household pipe 10, and the bottom wall of the first brick masonry opening 11 is lower than the bottom wall of the household pipe 10. Meanwhile, in the embodiment, the sewage intercepting basket 5 is installed on the bottom wall of the reservoir 1, and the top surface of the sewage intercepting basket 5 is higher than the top wall of the first brick masonry opening 11 and lower than the bottom wall of the household pipe 10, so as to ensure the filtering effect of the sewage intercepting basket 5. When the water flow of the household pipe 10 is small, the water flow can flow out from the first brick masonry opening 11 to the original soil layer after being filtered by the sewage intercepting basket 5.

One side of the water storage pool 1 is provided with a treatment pool 2, and the relative position of the treatment pool 2 and the service pipe 10 is determined according to the actual relative position of the service pipe 10 and the surface layer of the bioretention facility. A first overflow port 20 is formed in one side, close to the treatment tank 2, of the treatment tank 2, and when the water in the water storage tank 1 is full and is higher than the bottom wall of the first overflow port 20, the water in the water storage tank 1 flows into the treatment tank 2.

A second brick masonry opening 21 is formed in one side of the treatment tank 2, the bottom wall of the second brick masonry opening 21 is lower than the bottom wall of the first overflow port 20, the second brick masonry opening 21 faces the surface layer of the bioretention facility, the height of the bottom wall of the second brick masonry opening 21 is higher than that of the bioretention facility, and water in the treatment tank 2 can flow to the surface layer of the bioretention facility from the second brick masonry opening 21. Therefore, water in the household pipe 10 can be guided to the surface layer of the bioretention facility, the treatment range of the surface layer of the bioretention facility is expanded, and the effective volume of the sponge city is effectively improved.

The bottom of the treatment tank 2 is missing, and a gravel layer 3 is provided inside the treatment tank 2, and the bottom of the gravel layer 3 is supported by the raw soil layer at the bottom of the treatment tank 2. In this embodiment, the surface of the gravel layer 3 is inclined downward near the second brick laying opening 21 side, so that it is possible to facilitate the diversion of the water flow from the second brick laying opening 21 into the surface layer of the bioretention facility. In other embodiments, the surface of the gravel layer 3 may be set to be horizontal.

In this embodiment, the overflow pipe 4 has been buried underground to the inside of gravel layer 3, and the overflow pipe 4 is L form setting, and the open-top of overflow pipe 4 up and top face high position are in between the diapire of gravel layer 3 top surface and first overflow mouth 20, and the bottom level of overflow pipe 4 is worn out and is handled 2 a lateral wall of pond and towards biological detention facility top layer. Wherein, the lowest of overflow pipe 4 is flat with the diapire of gravel layer 3, and the height of gravel layer 3 diapire is greater than or equal to the height on biological detention facility top layer to guarantee that the water in overflow pipe 4 also can flow smoothly to biological detention facility top layer.

When the water volume can not flow out through the second brick masonry opening 21 and the water level line of the treatment pool 2 exceeds the top end surface of the overflow pipe 4, the water is directly guided out to the surface layer of the bioretention facility through the overflow pipe 4, so that the situation that the water in the treatment pool 2 overflows or flows backwards due to the excessive water volume of the treatment pool 2 is reduced, and the reliability of the replacement well is improved.

In this embodiment, the overflow pipe 4 is a blind pipe, and the blind pipe is made of synthetic fibers, plastics, synthetic rubber, and the like, and made into various shapes and multifunctional geotechnical products by different processes, and has extremely high surface water seepage capability and internal water permeability. When the water in the treatment tank 2 does not exceed the top end surface of the overflow pipe 4, the water in the treatment tank 2 can also flow into the overflow pipe 4 by osmosis and be guided to the surface layer of the bioretention facility by the overflow pipe 4. In other embodiments, the overflow tube 4 may be a PE plate.

In conclusion, through setting up cistern 1 and processing pond 2, leading-in to the biological retention facility top layer of water in the pipe of will going out household 10 to can improve the treatment scope on biological retention facility top layer, reach the effect that improves the effective volume in sponge city, make the design in sponge city more reasonable and high-efficient.

Example 2:

referring to fig. 2 and 3, the present embodiment is different from embodiment 1 in that: the side wall of the impounding reservoir 1 close to the treatment tank 2 is provided with a sliding groove 60 in the vertical direction, and a water pressing plate 6 is vertically and slidably arranged in the sliding groove 60. The bottom of the pressurized-water plate 6 is rotatably connected with a filter screen 61, two ends of one side, far away from the filter screen 61 and rotatably connected with the pressurized-water plate 6, of the filter screen 61 are respectively fixed with two lifting ropes 62, and one end, far away from the filter screen 61, of each lifting rope 62 penetrates through two sides of the top of the pressurized-water plate 6 in a sliding mode and is movably sleeved on the top of the reservoir 1.

In the embodiment, the cross sections of the sliding groove 60 and the water pressing plate 6 are both in a T shape, so that the sliding of the water pressing plate 6 is more stable; in other embodiments, the cross-sectional shape of the sliding groove 60 and the water pressing plate 6 may be dovetail-shaped. Through pulling lifting rope 62, be close to filter screen 61 to pressurized-water plate 6, can extrude the rubbish on the filter screen 61, reduce the whole volume and the moisture of rubbish, be convenient for transport and handle rubbish.

Wherein, at 1 top of cistern and be in the diapire position symmetry of first overflow mouth 20 and install two spacing posts 620, the top integrated into one piece of spacing post 620 has the cylinder pole, and the one end fixed mounting that the filter screen 61 was kept away from to lifting rope 62 has spacing ring 621, overlaps the spacing ring 621 and establishes on the cylinder pole to the completion is established the installation to the cover of lifting rope 62.

All install handle 64 in the top surface both sides of pressurized-water board 6, handle 64 is the shape of inverting U, handle 64 top is rotated and is installed smooth roller 65, the both sides of smooth roller 65 all are provided with the limiting plate, in order to reduce the condition that lifting rope 62 slips from both sides, the closed loop hole that smooth roller 65 and pressurized-water board 6 top enclose is passed to the one end that the filter screen 61 was kept away from to lifting rope 62, through the rotation transition of smooth roller 65, can make lifting rope 62 can more smooth slide in handle 64 inboard, so that tighten up and expand of filter screen 61.

In order to further reduce the volume and the moisture of the garbage, a plurality of water pressing blocks 63 are installed on one side, close to the center of the water storage tank 1, of the water pressing plate 6, the water pressing blocks 63 are distributed in a matrix mode and are conical, and the diameter size of one end, far away from the water pressing plate 6, of each water pressing block 63 is smaller than that of one end, close to the water pressing plate 6. Because the filter screen 61 is rotatably connected with the bottom of the water pressing plate 6, in the rotating process of the filter screen 61, the distance between the filter screen 61 and the water pressing blocks 63 with different height positions is different, therefore, the height of the water pressing blocks 63 is set according to the height position of the water pressing plate 6, and the height of the water pressing blocks 63 is gradually reduced along with the top to the bottom of the water pressing plate 6, so that the garbage on the filter screen 61 can be more uniformly extruded.

Referring to fig. 3 and 4, a rotating shaft 7 is fixedly installed at one end of the filter screen 61 close to the bottom of the water pressing plate 6, and the rotating shaft 7 is rotatably installed at the bottom of the water pressing plate 6, so as to improve the stability of the fit between the filter screen 61 and the water pressing plate 6. In the present embodiment, a receiving hole 70 is formed in the center of both end surfaces of the rotating shaft 7, an elastic member 71 is fixedly mounted on the bottom wall of the receiving hole 70, and the elastic member 71 is a coil spring. The positioning rod 72 is fixedly mounted at one end of the elastic element 71 away from the bottom wall of the accommodating hole 70, one end of the positioning rod 72 is provided with an arc chamfer and is slidably arranged in the accommodating hole 70, and positioning holes 73 are formed in the bottoms of the two side walls of the sliding groove 60.

When the water pressing plate 6 slides to the bottom of the sliding groove 60, the positioning rod 72 extends into the positioning hole 73 under the elastic force of the elastic member 71, so that a part of the positioning rod 72 is located in the positioning hole 73 and a part of the positioning rod is located in the accommodating hole 70, thereby preliminarily fixing the position of the water pressing plate 6.

The positioning rod 72 is provided with a limiting groove for the limiting strip to slide, so that the positioning rod 72 can only slide in the accommodating hole 70, and the rotation of the rotating shaft 7 can drive the positioning rod 72 to rotate together.

In order to further improve the stability of the filter screen 61 during unfolding, a thread is provided at one end of the positioning rod 72 extending into the positioning hole 73, and the positioning hole 73 is a threaded hole matched with the thread on the positioning hole 73. When the pressurized-water plate 6 slides to the bottom of the sliding groove 60, the positioning rod 72 extends into the positioning hole 73 under the elastic force action of the elastic piece 71, at the moment, the filter screen 61 rotates around the central line of the rotating shaft 7 and is unfolded, the rotating shaft 7 is driven to rotate together to drive the positioning hole 73 to rotate, so that the positioning hole 73 can be driven to be screwed into the positioning hole 73, the pressurized-water plate 6 is further fixed, and then the stability of the pressurized-water plate 6 after the filter screen 61 is unfolded is improved.

In conclusion, by arranging the water pressing plate 6, the filter screen 61 and the lifting rope 62, water flow can be filtered, and filtered garbage is extruded, so that the garbage can be cleaned and transported conveniently, and the normal use of the water storage tank 1 is guaranteed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a sponge city rain drop pipe goes out household pipe discrepancy in elevation replacement well which characterized in that: the device comprises a reservoir (1) communicated with a household pipe (10), wherein a first brick masonry opening (11) is formed in one side, far away from the household pipe (10), of the bottom of the reservoir (1), a bottom wall of the first brick masonry opening (11) is lower than that of the household pipe (10), a treatment pool (2) is arranged on one side of the reservoir (1), a first overflow opening (20) is formed in one side, close to the treatment pool (2), of the reservoir (1), a second brick masonry opening (21) facing the surface layer of the biological retention facility is formed in one side of the treatment pool (2), and the height of the bottom wall of the second brick masonry opening (21) is larger than or equal to the height of the surface layer of the biological retention facility;

sliding tray (60) have been seted up to lateral wall that cistern (1) is close to treatment pond (2), the inside slidable mounting of sliding tray (60) has pressurized-water plate (6), pressurized-water plate (6) bottom is rotated and is connected with filter screen (61), filter screen (61) keep away from with pressurized-water plate (6) rotate the one end of connecting and install lifting rope (62), lifting rope (62) are kept away from filter screen (61) one end is slided and is passed the top and the movable sleeve of pressurized-water plate (6) are established cistern (1) top.

2. The sponge city rain drop pipe home outlet pipe height difference replacement well of claim 1, characterized in that: the bottom of the treatment pool (2) is absent and a gravel layer (3) is arranged inside the treatment pool.

3. The sponge city rain drop pipe home outlet pipe altitude difference replacement well of claim 2, characterized in that: an overflow pipe (4) is embedded in the gravel layer (3), an opening at one end of the overflow pipe (4) is positioned between the surface of the gravel layer (3) and the bottom wall of the first overflow port (20), and the other end of the overflow pipe (4) penetrates out of the bottom of one side of the treatment pool (2) and extends to the surface layer of the biological retention facility.

4. The sponge city rain drop pipe home outlet pipe height difference replacement well of claim 3, characterized in that: the overflow pipe (4) is a blind pipe.

5. The sponge city rain drop pipe home outlet pipe altitude difference replacement well of claim 1, characterized in that: cistern (1) diapire is than the diapire of household pipe (10) is low, cistern (1) bottom is installed and is cut dirty basket (5), the top surface that cuts dirty basket (5) is than first brick masonry opening (11) top wall height.

6. The sponge city rain drop pipe home outlet pipe altitude difference replacement well of claim 1, characterized in that: the water pressing plate is characterized in that a rotating shaft (7) fixedly connected with the filter screen (61) is rotatably installed at the bottom of the water pressing plate (6), accommodating holes (70) are formed in two end faces of the rotating shaft (7), elastic pieces (71) are installed on the bottom walls of the accommodating holes (70), positioning rods (72) are installed at one ends, far away from the bottom walls of the accommodating holes (70), of the elastic pieces (71), the positioning rods (72) are slidably installed in the accommodating holes (70), and positioning holes (73) are formed in two side walls of the sliding groove (60) and used for enabling the positioning rods (72) to be far away from one ends of the elastic pieces (71) to stretch into.

7. The sponge city rain drop pipe home outlet pipe height difference replacement well of claim 6, wherein: one end of the positioning rod (72) embedded into the positioning hole (73) is provided with threads, and the positioning hole (73) is a threaded hole.

8. The sponge city rain drop pipe home outlet pipe height difference replacement well of claim 1, characterized in that: the water pressing plate (6) is close to one side of the center of the water storage pool (1) and is provided with a plurality of water pressing blocks (63), each water pressing block (63) is conical, and the height of each water pressing block (63) is gradually reduced from the top to the bottom of the water pressing plate (6).

9. The sponge city rain drop pipe home outlet pipe height difference replacement well of claim 1, characterized in that: and a handle (64) for the lifting rope (62) to pass through is arranged at the top of the water pressing plate (6), and a sliding roller (65) is rotatably arranged at the top of the handle (64).