Environment-friendly water supply and drainage device for building

Abstract

The invention relates to the technical field of water supply and drainage, in particular to an environment-friendly water supply and drainage device for a building. The device at least comprises a buffer cavity between a mounting shell and a drainage shell, a water inlet is communicated between a drainage cavity in the drainage shell and the buffer cavity, a regulation and control cavity is formed in the inner layer of the drainage shell, a floating assembly is arranged in the regulation and control cavity, and a filtering structure is movably arranged at the end of the floating assembly through an elastic connecting piece; a first guide plate and a second guide plate are arranged in an inner cavity, close to the top, of the buffer cavity. When the filtering structure is not smooth, on one hand, the filtering structure is separated from shielding of the water inlet, preferential drainage is facilitated, and the situation that accumulated water on the road surface is serious, and collected rainwater possibly carries a large number of impurities is avoided; impurities blocked by the filter holes can be impacted to fall off, and the accumulated impurities are extruded to be located between the first guide plate and the second guide plate, so that follow-up centralized cleaning is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of water supply and drainage, and in particular to an environmentally friendly water supply and drainage device for buildings. Background Art

[0002] The building water supply and drainage system is one of the important infrastructures in the building. It is responsible for the tasks of water supply, drainage and wastewater treatment. When draining water, the sewer is set below the ground level to make the wastewater and rainwater flow along the end of the sewer to avoid water accumulation on the ground. Then, the end of the sewer is connected to the collection tank through a transmission pipeline to collect the wastewater and rainwater for subsequent recycling. However, when the ground is flooded during heavy rains, rainwater flows to the low-lying sewer entrances, easily carrying impurities on the ground into the sewers, causing a large amount of impurities to accumulate in the sewers and affecting the flow to the collection pool. Although companies have also discovered this drawback when producing water supply and drainage devices, they will set up a filtering structure at the entrance to block impurities when collecting rainwater. However, during use, the filtering structure will cause some impurities to clog the filter holes. When the blockage is serious, it will affect the drainage effect, resulting in serious water accumulation on the ground that is inconvenient to deal with in time, causing inconvenience to passers-by when using the building, affecting the user experience. In view of this, we propose a method for filtering ground impurities to remove rainwater when the filtering structure is not blocked or the blockage is not serious, and separating from the water inlet when the filtering structure is blocked to affect the drainage effect, thereby achieving an environmentally friendly water supply and drainage device for buildings that prioritizes the removal of rainwater accumulated in heavy rains. Summary of the invention

[0003] The purpose of the present invention is to provide an environmentally friendly water supply and drainage device for buildings to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides an environmentally friendly water supply and drainage device for buildings, comprising at least a mounting shell and a drainage shell inside the mounting shell, a buffer cavity is provided between the mounting shell and the drainage shell, a drainage cavity is provided inside the drainage shell, and a water inlet is communicated between the drainage cavity and the buffer cavity, wherein: The inner layer of the drainage housing is provided with a regulating chamber, a floating component is provided inside the regulating chamber, and a filtering structure is movably provided at the end of the floating component through an elastic connecting piece; The inner cavity of the buffer cavity near the top is provided with a first guide plate and a second guide plate, rainwater flows from the outside to the filtering structure through the surfaces of the first guide plate and the second guide plate in sequence, and a gap is provided between the first guide plate and the second guide plate to communicate with the bottom of the inner cavity of the buffer cavity; The elastic connector is restricted by the regulating chamber to drive the filter structure to a vertical state to close the water inlet. When the flow through the filter structure is not smooth and causes sewage to flow into the buffer chamber from the gap, the floating component is released from the restriction of the elastic connector by the buoyancy, so that the filter structure elastically rotates and separates from the water inlet.

[0005] As a further improvement of the present technical solution, the first guide plate is installed at the edge of the inner wall of the installation shell, the second guide plate is installed at the edge of the water inlet of the drainage shell, and the first guide plate is inclined toward the second guide plate, and the second guide plate is inclined toward the water inlet.

[0006] As a further improvement of the technical solution, the floating assembly at least includes a floating plate sliding inside the buffer cavity, and a plurality of water discharge holes are opened on the surface of the floating plate; The regulating cavity is connected with the buffer cavity near the bottom and is provided with a slot, and the outer wall of the floating plate is provided with a movable frame penetrating through the slot, and the movable frame is adapted to slide inside the regulating cavity.

[0007] As a further improvement of the technical solution, the movable frame is an internally hollow frame structure, which is used to replace the filtering structure to block the water inlet.

[0008] As a further improvement of the present technical solution, the elastic connecting member includes at least a rotating sleeve fixed at the end of the movable frame and a rotating block fixed at the end of the filtering structure frame, the rotating block rotates inside the rotating sleeve, and the outer wall of the rotating block is fixedly connected with a rotating shaft, the rotating shaft extends into the inner layer of the rotating sleeve, and a coil spring is fixedly connected between the outer wall of the rotating shaft and the inner wall of the inner layer of the rotating sleeve, and when the coil spring is located inside the regulating chamber, a contraction rebound force is generated.

[0009] As a further improvement of the technical solution, the inner layer of the rotating sleeve is a hollow structure, and the rotating shaft and the rotating sleeve are sealed for rotation.

[0010] As a further improvement of the technical solution, a through cavity for communicating with the interior of the drainage cavity is provided near the bottom of the buffer cavity, and a positioning plug is inserted at the position where the through cavity communicates with the bottom of the buffer cavity.

[0011] As a further improvement of the technical solution, the through cavity is inclined, and the highest point of the through cavity is connected to the buffer cavity, and the lowest point of the through cavity is connected to the drainage cavity.

[0012] As a further improvement of the technical solution, a positioning column is fixedly provided at the connection between the buffer cavity and the through cavity, the positioning plug slides through the positioning column, and the top of the positioning column is fixedly connected to a support plate, the bottom of the support plate is provided with a limit shell, a connecting rod is slidably provided inside the limit shell, one end of the connecting rod extends out of the limit shell and is fixedly connected to the top of the positioning plug, and an elastic member is fixedly connected between the other end of the connecting rod and the end of the inner cavity of the limit shell; A pull rope is fixedly connected to the top of the positioning plug, and the pull rope movably passes through the positioning column and the floating plate. The end of the pull rope extends from the installation shell near the top and is fixedly connected to a handle.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the environmentally friendly water supply and drainage device for buildings, the buoyancy is generated by increasing the amount of water in the buffer chamber to drive the floating component to move upward, so that the elastic connector drives the filter structure to break away from the restriction of the regulating chamber, and the filter structure rotates under the elastic force. On the one hand, the filter structure is freed from the obstruction of the water inlet, so that the external water can quickly rush into the water inlet and enter the interior of the drainage shell, which is conducive to priority drainage and avoids serious water accumulation on the road. The collected rainwater may carry a large amount of impurities. On the other hand, the elastic force drives the filter structure to rotate rapidly and collide with the surface of the first guide plate, which can impact and fall off the impurities blocked in the filter holes, and the squeezed and accumulated impurities are located between the first guide plate and the second guide plate, which is convenient for subsequent centralized cleaning.

[0014] 2. In the environmentally friendly water supply and drainage device for buildings, an elastic connecting piece is located inside the regulating cavity to limit the filter structure to be in a vertical state to block the water inlet, so that when external rainwater flows along the first guide plate and the second guide plate to the drainage shell for collection, the impurities carried by the rainwater are blocked by the filter structure, reducing the impact of collecting rainwater for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure assembly of the present invention; Figure 2 It is a schematic diagram of the overall structure decomposition of the present invention; Figure 3 A demonstration diagram of the overall filtration and drainage of storm water of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure at A; Figure 5 This is a demonstration diagram of the overall filtration of the present invention when it is blocked; Figure 6 For the present invention Figure 5 Schematic diagram of the structure at B; Figure 7 A demonstration diagram of the present invention for draining rainwater after the overall filter is blocked; Figure 8 For the present invention Figure 7 Schematic diagram of the structure at C; Fig. 9 It is a schematic cross-sectional view of the overall structure of the present invention; Fig.10 It is a schematic diagram of the structural decomposition of the floating assembly of the present invention; Fig.11 For the present invention Fig.10 Schematic diagram of the structure at D; Fig.12 is a cross-sectional schematic diagram of the drainage structure of the present invention; Fig.13 For the present invention Fig.12 Schematic diagram of the structure at E.

[0016] The meaning of each number in the figure is: 100, mounting housing; 101, buffer chamber; 102, first guide plate; 200, drainage housing; 201, drainage chamber; 202, regulating chamber; 203, through chamber; 204, top cover; 205, second guide plate; 300, floating assembly; 310, floating plate; 311, water discharge hole; 320, movable frame; 330, rotating sleeve; 331, rotating block; 332, rotating shaft; 333, spiral spring; 400. Filter structure; 500, positioning plug; 510, pull rope; 520, positioning column; 521, support plate; 522, limit shell; 523, connecting rod; 524, elastic member. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0018] See also Figure 1-Figure 13 As shown, this embodiment provides an environmentally friendly water supply and drainage device for buildings, which at least includes an installation shell 100 and a drainage shell 200 inside the installation shell 100, a buffer chamber 101 is provided between the installation shell 100 and the drainage shell 200, a drainage chamber 201 is provided inside the drainage shell 200, and a water inlet is connected between the drainage chamber 201 and the buffer chamber 101, wherein: The inner layer of the drainage housing 200 is provided with a regulating chamber 202, and a floating assembly 300 is provided inside the regulating chamber 202. A filtering structure 400 is movably provided at the end of the floating assembly 300 through an elastic connecting piece. The inner cavity of the buffer cavity 101 near the top is provided with a first guide plate 102 and a second guide plate 205, and rainwater flows from the outside to the filter structure 400 through the surfaces of the first guide plate 102 and the second guide plate 205 in sequence, and a gap is provided between the first guide plate 102 and the second guide plate 205 to communicate with the bottom of the inner cavity of the buffer cavity 101; The elastic connector is limited by the regulating chamber 202 to drive the filter structure 400 to close the water inlet in a vertical state. When the flow through the filter structure 400 is not smooth and sewage flows into the buffer chamber 101 from the gap, the floating component 300 is released from the restriction of the elastic connector by the buoyancy, so that the filter structure 400 elastically rotates and separates from the water inlet.

[0019] See also Figure 1-2 As shown, the present invention takes into account that when the ground is flooded during heavy rain, rainwater flows to the low-lying water inlet, which is easy to carry impurities on the ground into the sewer, resulting in a large accumulation of impurities in the collection pool, affecting the subsequent rainwater recycling efficiency. Therefore, when collecting rainwater, Figure 3-Figure 4 As shown, the elastic connecting member is located inside the regulating cavity 202, limiting the filter structure 400 to be in a vertical state to block the water inlet, so that when the external rainwater flows along the first guide plate 102 and the second guide plate 205 to the drainage housing 200 for collection, the impurities carried by the rainwater are blocked by the filter structure 400, reducing the impact of the collected rainwater recycling; As impurities accumulate on the front side of the filter structure 400, the staff cannot clean it in time, resulting in serious water accumulation on the ground, affecting the living experience of the building. If the amount of water accumulated outside is small, the rainwater can pass through the inside of the filter structure 400 and be collected from the inside of the drainage shell 200. If the amount of water accumulated outside is large, the rainwater will flow into the filter structure 400, causing part of the water flow to enter the drainage shell 200 for collection. Part of the water flow is blocked by rainwater on the surface of the filter structure 400 and accumulates between the first guide plate 102 and the second guide plate 205 on the front side of the filter structure 400, causing the rainwater to flow from the gap to the buffer chamber 101, increasing the amount of water in the buffer chamber 101 to generate buoyancy, driving the floating component 300 to move upward, so that the elastic The connecting piece drives the filter structure 400 to break away from the restriction of the regulating chamber 202, and the filter structure 400 rotates under the elastic force. On the one hand, the filter structure 400 is freed from the obstruction of the water inlet, so that the external water can quickly rush into the water inlet and enter the interior of the drainage shell 200, which is conducive to priority drainage and avoids serious water accumulation on the road. The collected rainwater may carry a large amount of impurities, which can be subsequently processed in the water collection pool, which will not be repeated here. On the other hand, the elastic force drives the filter structure 400 to rotate quickly and collide with the surface of the first guide plate 102, which can impact and fall off the impurities blocked in the filter holes, and the squeezed and accumulated impurities are located between the first guide plate 102 and the second guide plate 205, which is convenient for subsequent centralized cleaning. Later, when resetting, the staff will conduct regular inspections. In clear weather, the water in the buffer chamber 101 will be pumped out, and the filter structure 400 will be manually rotated to a vertical state. As the elastic connecting part is pressed into the regulating chamber 202 again, the floating component 300 will limit the filter structure 400 to remain in a vertical state and block the water inlet under the action of its own gravity, which will help collect rainwater again when the road is flooded during the next heavy rain.

[0020] On the basis of the above, the specific structure is disclosed in detail: First, when the rainwater from the outside flows to the water inlet along the first guide plate 102 and the second guide plate 205 in sequence, in order to avoid that part of the rainwater flows into the buffer chamber 101 when the rainwater is discharged smoothly, thus affecting the effect of filtering impurities, Figure 4It can be seen that the first guide plate 102 is installed at the edge of the inner wall of the installation shell 100, the second guide plate 205 is installed at the edge of the water inlet of the drainage shell 200, and the first guide plate 102 is inclined to the second guide plate 205, and the second guide plate 205 is inclined to the water inlet. By installing and fixing the installation shell 100 in the building wall, and fixing the top cover 204 on the top of the drainage shell 200, so that the top cover 204 is lower than the horizontal plane, and the surface is an arc-shaped structure, when it rains, rainwater flows along the horizontal plane to the inside of the low-lying installation shell 100, so that the rainwater flows along the first guide plate 102 to the surface of the second guide plate 205, or flows along the arc-shaped top cover 204 to the second guide plate 205, and then flows through the filtering structure 400 to the drainage cavity 201 inside the drainage shell 200, until it flows along the pipeline to the water collection tank to collect rainwater; When the filter structure 400 is blocked and rainwater is not flowing smoothly and accumulates on the second guide plate 205, when the rainwater accumulates to a point exceeding the highest point of the second guide plate 205, it flows from the gap to the inside of the buffer chamber 101. As the amount of water increases, the floating component 300 senses the buoyancy in the buffer chamber 101 and moves upward; As for the impurities that may be carried by rainwater when it enters the buffer chamber 101, the first guide plate 102 can be detachably installed on the edge of the inner wall of the mounting shell 100, and the second guide plate 205 can also be detachably installed at the edge of the water inlet. When there are impurities in the buffer chamber 101, the first guide plate 102 and the second guide plate 205 can be disassembled to expose the upper end of the buffer chamber 101, so that the staff can pull out the impurities by pulling the floating assembly 300. Among them, the detachable installation method is such as: connecting with the help of mounting plate bolts, which can be associated with the technical field and will not be repeated again.

[0021] Then, when the floating assembly 300 can sense the buoyancy inside the buffer chamber 101 and overcome the elastic force limit of the elastic connection to move upward, the specific structure of the floating assembly 300 needs to be disclosed in detail, such as Figure 9-10 As shown, the floating assembly 300 at least includes a floating plate 310 sliding inside the buffer chamber 101, and a plurality of water discharge holes 311 are opened on the surface of the floating plate 310; The regulating chamber 202 is connected to the buffer chamber 101 near the bottom and is provided with a groove. The outer wall of the floating plate 310 is penetrated by the groove and provided with a movable frame 320. The movable frame 320 is adapted to slide inside the regulating chamber 202. When water accumulates in the buffer chamber 101, the floating plate 310 moves upward due to the buoyancy. The buoyancy drives the movable frame 320 to slide upward inside the regulating chamber 202. Conversely, when rainwater is discharged from the buffer chamber 101, the floating plate 310 and the movable frame 320 are reset to the bottom of the buffer chamber 101 under the gravity.

[0022] Specifically, the movable frame 320 is an internally hollow frame structure, which is used to replace the filter structure 400 to block the water inlet. Since the rising height of the floating plate 310 depends on the water level of the buffer chamber 101, when a large amount of water is accumulated in the buffer chamber 101, the filter structure 400 can be floated up by the movable frame 320, so that the filter structure 400 can be extended above the horizontal plane, which is helpful to warn the staff that rainwater collection here is not smooth, so that the inside of the movable frame 320 covers the water inlet, and rainwater can flow directly from the inside of the movable frame 320 to the drainage chamber 201, reducing the clogging of the filter holes of the filter structure 400 by impurities.

[0023] It is worth noting that when the movable frame 320 drives the filter structure 400 out of the regulating cavity 202, the filter structure 400 can be driven to rotate rapidly under the action of the elastic connector to disturb the impurities blocking the filter holes. The structure of the elastic connector is further disclosed, such as Figure 10-11 As shown, the elastic connecting member at least includes a rotating sleeve 330 fixed at the end of the movable frame 320 and a rotating block 331 fixed at the end of the filter structure 400 frame. The rotating block 331 rotates inside the rotating sleeve 330, and the outer wall of the rotating block 331 is fixedly connected to a rotating shaft 332, and the rotating shaft 332 extends into the inner layer of the rotating sleeve 330. A coil spring 333 is fixedly connected between the outer wall of the rotating shaft 332 and the inner wall of the inner layer of the rotating sleeve 330. When the coil spring 333 is located inside the regulating chamber 202, a contraction rebound force is generated, thereby driving the rotating block 331 to fit the filter to limit the filter. The structure 400 remains in a vertical state, and the elastic connecting piece moves upward, so that the coil spring 333 extends out of the regulating chamber 202. Under the elastic force of the coil spring 333, the rotating block 331 rotates rapidly, that is, the filtering structure 400 is driven to rotate rapidly until the filtering structure 400 abuts against the first guide plate 102, which can impact the impurities blocked in the filter holes and improve the shedding effect. In addition, the impurities blocked between the first guide plate 102 and the second guide plate 205 can be pressed downward, so that rainwater can enter the drainage chamber 201 more smoothly.

[0024] The inner layer of the rotating sleeve 330 is a hollow structure, and the rotating shaft 332 and the rotating sleeve 330 are sealed and rotated to ensure that rainwater does not enter the inner layer of the rotating sleeve 330, reduce the erosion of the spiral spring 333 by rainwater, and improve the service life.

[0025] Furthermore, after the buffer chamber 101 is filled with water, the floating plate 310 needs to be reset to facilitate the collection of rainwater again in subsequent heavy rain weather. It is necessary to more conveniently discharge the rainwater in the buffer chamber 101 during the staff's inspection. Fig.12As shown, a through cavity 203 for communicating with the inside of the drainage cavity 201 is provided near the bottom of the buffer cavity 101, and a positioning plug 500 is inserted at the position where the through cavity 203 communicates with the bottom of the buffer cavity 101. The through cavity 203 is blocked by the positioning plug 500, so that water entering the buffer cavity 101 can be gathered to generate buoyancy for the floating plate 310 to float up. However, when resetting, the positioning plug 500 is pulled out to connect the buffer cavity 101 and the drainage cavity 201 through the through cavity 203, so that the water in the buffer cavity 101 flows along the through cavity 203 to the inside of the drainage cavity 201, and then flows through the pipe to the water collection pool to collect rainwater again, thereby improving the utilization rate of rainwater and ensuring the structural integrity.

[0026] Specifically, the through cavity 203 is inclined, and the highest point of the through cavity 203 is connected to the buffer cavity 101, and the lowest point of the through cavity 203 is connected to the drainage cavity 201, so that rainwater in the buffer cavity 101 can quickly flow through the inclined through cavity 203, thereby improving drainage efficiency.

[0027] In addition, it is necessary to facilitate the staff to drive the positioning plug 500 to assemble and disassemble on the building wall. Fig.13 As shown, a positioning column 520 is fixedly provided at the connection between the buffer cavity 101 and the through cavity 203, and the positioning plug 500 penetrates and slides on the positioning column 520, and a support plate 521 is fixedly connected to the top of the positioning column 520, and a limiting shell 522 is provided at the bottom of the support plate 521, and a connecting rod 523 is slidably provided inside the limiting shell 522, one end of the connecting rod 523 extends out of the limiting shell 522 and is fixedly connected to the top of the positioning plug 500, and an elastic member 524 is fixedly connected between the other end of the connecting rod 523 and the end of the inner cavity of the limiting shell 522; A pull rope 510 is fixedly connected to the top of the positioning plug 500. The pull rope 510 movably passes through the positioning column 520 and the floating plate 310, and the end of the pull rope 510 extends from the installation shell 100 near the top, and is fixedly connected to a handle. The pull rope 510 is restricted from being disengaged by the handle, and the handle is pulled until the pull rope 510 extends outward, which can drive the positioning plug 500 to slide outward along the positioning column 520, and the elastic member 524 is compressed, thereby disengaging from the end of the through cavity 203, so that the connection between the through cavity 203 and the buffer cavity 101 is exposed, and water can flow along the connection to the drainage cavity 201 to achieve drainage. When the staff member releases his hand from the handle, the elastic force of the elastic member 524 causes the positioning plug 500 to return along the positioning column 520 to block the end of the through cavity 203 again, so as to facilitate subsequent reuse.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An environmentally friendly water supply and drainage device for buildings, characterized in that: The invention comprises at least a mounting shell (100) and a drainage shell (200) inside the mounting shell (100), a buffer chamber (101) being provided between the mounting shell (100) and the drainage shell (200), a drainage chamber (201) being provided inside the drainage shell (200), and a water inlet being communicated between the drainage chamber (201) and the buffer chamber (101), wherein: The inner layer of the drainage housing (200) is provided with a regulating chamber (202), a floating assembly (300) is provided inside the regulating chamber (202), and a filtering structure (400) is movably provided at the end of the floating assembly (300) via an elastic connecting piece; A first guide plate (102) and a second guide plate (205) are provided in the inner cavity of the buffer cavity (101) near the top, rainwater from the outside sequentially passes through the surfaces of the first guide plate (102) and the second guide plate (205) and flows to the filtering structure (400), and a gap is provided between the first guide plate (102) and the second guide plate (205) to communicate with the bottom of the inner cavity of the buffer cavity (101); The elastic connection piece is restricted by the regulating chamber (202) to drive the filter structure (400) to close the water inlet in a vertical state. When sewage flows through the filter structure (400) from the gap into the buffer chamber (101) due to poor circulation, the floating component (300) is freed from the restriction of the elastic connection piece by the buoyancy, so that the filter structure (400) is elastically rotated and separated from the water inlet.

2. The environmentally friendly water supply and drainage device for buildings according to claim 1 is characterized in that: The first guide plate (102) is installed at the edge of the inner wall of the installation shell (100), and the second guide plate (205) is installed at the edge of the water inlet of the drainage shell (200), and the first guide plate (102) is inclined toward the second guide plate (205), and the second guide plate (205) is inclined toward the water inlet.

3. The environmentally friendly water supply and drainage device for buildings according to claim 2 is characterized in that: The floating assembly (300) comprises at least a floating plate (310) sliding inside the buffer chamber (101), and a plurality of water discharge holes (311) are formed on the surface of the floating plate (310); The regulating chamber (202) is connected to the buffer chamber (101) and is provided with a slot near the bottom. A movable frame (320) is provided on the outer wall of the floating plate (310) through the slot. The movable frame (320) is adapted to slide inside the regulating chamber (202).

4. The environmentally friendly water supply and drainage device for buildings according to claim 3 is characterized in that: The movable frame (320) is a frame structure with a hollow interior, and is used to replace the filtering structure (400) and block the water inlet.

5. The environmentally friendly water supply and drainage device for buildings according to claim 4 is characterized in that: The elastic connecting member at least comprises a rotating sleeve (330) fixed to the end of the movable frame (320) and a rotating block (331) fixed to the end of the filter structure (400) frame; the rotating block (331) rotates inside the rotating sleeve (330); the outer wall of the rotating block (331) is fixedly connected to a rotating shaft (332); the rotating shaft (332) extends into the inner layer of the rotating sleeve (330); and a coil spring (333) is fixedly connected between the outer wall of the rotating shaft (332) and the inner wall of the inner layer of the rotating sleeve (330); when the coil spring (333) is located inside the regulating chamber (202), a contraction rebound force is generated.

6. The environmentally friendly water supply and drainage device for buildings according to claim 5, characterized in that: The inner layer of the rotating sleeve (330) is a hollow structure, and the rotating shaft (332) and the rotating sleeve (330) rotate in a sealed manner.

7. The environmentally friendly water supply and drainage device for buildings according to claim 6 is characterized in that: A through cavity (203) for communicating with the interior of the drainage cavity (201) is provided near the bottom of the buffer cavity (101), and a positioning plug (500) is inserted at the position where the through cavity (203) communicates with the bottom of the buffer cavity (101).

8. The environmentally friendly water supply and drainage device for buildings according to claim 7 is characterized in that: The through cavity (203) is inclined, and the highest point of the through cavity (203) is connected to the buffer cavity (101), while the lowest point of the through cavity (203) is connected to the drainage cavity (201).

9. The environmentally friendly water supply and drainage device for buildings according to claim 7, characterized in that: A positioning column (520) is fixedly provided at the connection between the buffer cavity (101) and the through cavity (203); the positioning plug (500) penetrates and slides on the positioning column (520); a support plate (521) is fixedly connected to the top of the positioning column (520); a limiting shell (522) is provided at the bottom of the support plate (521); a connecting rod (523) is slidably provided inside the limiting shell (522); one end of the connecting rod (523) extends out of the limiting shell (522) and is fixedly connected to the top of the positioning plug (500); an elastic member (524) is fixedly connected between the other end of the connecting rod (523) and the end of the inner cavity of the limiting shell (522); A pull rope (510) is fixedly connected to the top of the positioning plug (500), and the pull rope (510) movably passes through the positioning column (520) and the floating plate (310), and the end of the pull rope (510) extends from the installation shell (100) near the top and is fixedly connected to a handle.

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