Rain and sewage diversion device for courtyard ground sewer

Abstract

The invention discloses a rain and sewage diversion device for a courtyard ground sewer, and belongs to the technical field of rain and sewage diversion. A courtyard ground sewer rain and sewage diversion device comprises a fixing frame and further comprises a rotating shaft arranged on the fixing frame, the rotating shaft is rotationally connected with a sewage baffle and a rainwater baffle, and the sewage baffle and the rainwater baffle are both provided with corresponding clamping grooves; the small water storage tank is arranged at the bottom of the sewage baffle, and a sewage inlet is formed in the sewage baffle; the large water storage tank is arranged at the bottom of the rainwater baffle; the fan-shaped plate is fixedly arranged on the fixed frame, and a limiting assembly is arranged on the fan-shaped plate; according to the invention, rainwater discharge and sewage discharge can be ensured not to occur at the same time, the core function of rainwater and sewage diversion is realized from the source, the effects of subsequent rainwater reuse and sewage treatment are guaranteed, the diversion rainwater can be directly discharged or recycled, and the sewage only needs small-capacity treatment, so that the sewage treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rain and sewage separation, in particular to a rain and sewage separation device for a courtyard ground sewer. BACKGROUND

[0002] Village courtyard construction aims to beautify rural living environment, improve villagers' quality of life, and promote the integration of rural ecological livability and industry development. The national standard of "Rural Beautiful Courtyard Construction Guide" has been issued, which requires that the courtyard drainage be smooth, the pipe network layout be reasonable, and the domestic sewage be non-overflowing and non-disordered.

[0003] At present, many town and village households have large courtyards, although rain and sewage separation pipe networks have been made, only a simple drainage port has been made in the courtyard, or although a rain and sewage separation drainage port has been made, but the rain and sewage separation consciousness of the town and village residents is not strong, and there is a phenomenon of mixed and disorderly discharge; for the courtyards with rain and sewage separation, in sunny days, the sewage flows to the rainwater drainage port with lower terrain, and for the courtyards without rain and sewage separation, in rainy days, a large amount of rainwater is collected through the roof and ground, and finally enters the sewage pipe network, causing rain and sewage to flow together, and in the combined system, rainwater can dilute sewage and increase the treatment capacity of sewage; if the courtyard is connected to the municipal pipe network, mixed discharge will increase the load of the municipal sewage treatment plant; if self-built treatment facilities are used, the water volume is large, the pollution load is unstable, and the sewage station operates poorly; In order to solve the difficulty of rain and sewage separation in the courtyard, one drainage port can realize that the courtyard sewage enters the sewage pipe in sunny days and the combined rainwater enters the rainwater pipe in rainy days, and in view of this, the present application is proposed. SUMMARY

[0004] The purpose of the present application is to solve the problems in the prior art and provide a rain and sewage separation device for a courtyard ground sewer.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: A rain and sewage separation device for a courtyard ground sewer, comprising a fixed frame, further comprising: A rotating shaft is arranged on the fixed frame, and a sewage baffle and a rainwater baffle are rotatably connected to the rotating shaft, respectively, and corresponding clamping grooves are arranged on the sewage baffle and the rainwater baffle; A small water storage tank is arranged at the bottom of the sewage baffle, and a sewage inlet is arranged on the sewage baffle; A large water storage tank is arranged at the bottom of the rainwater baffle, and a water inlet pipe is arranged on the rainwater baffle; A fan-shaped plate is fixedly arranged on the fixed frame, and a limiting assembly is arranged on the fan-shaped plate.

[0006] Preferably, two torsion springs are further included, which are sleeved on the two ends of the rotating shaft respectively, one of the torsion springs is arranged between the sewage baffle and the inner wall of the fixed frame, and the other torsion spring is arranged between the rainwater baffle and the inner wall of the other side of the fixed frame.

[0007] Further, the limiting assembly limits the rotation of the sewage baffle when the rainwater baffle rotates.

[0008] Further, the limiting assembly includes an arc-shaped cylinder fixedly arranged on the sector plate and a supporting rod fixedly connected to the sector plate, the bottom of the sewage baffle and the rainwater baffle is provided with an arc-shaped sliding rod, the two arc-shaped sliding rods are slidingly connected to the two ends of the arc-shaped cylinder respectively, and the supporting rod is slidingly connected with a concave limiting block.

[0009] Further, a plurality of second sliding blocks are slidingly arranged in the arc-shaped cylinder, elastic members are arranged between the plurality of second sliding blocks, the two ends of the arc-shaped cylinder are fixedly connected with first sliding blocks, and the two first sliding blocks are respectively abutted with the two second sliding blocks arranged at the two ends.

[0010] Further, the supporting rod is provided with a sliding groove, the concave limiting block is further arranged in the sliding groove, a partition plate is fixedly arranged at the middle part of the sliding groove, a guide rod is arranged in the concave limiting block, and the guide rod is slidingly connected to the partition plate.

[0011] Further, limiting springs are arranged between the inner walls of the two sides of the concave limiting block and the outer walls of the two sides of the baffle, the limiting springs are sleeved on the outer wall of the guide rod, a large inclined surface is arranged on the top of one end of the rainwater baffle on the concave limiting block, and the supporting rod is arranged at the middle position of the bottom of the sewage baffle and the rainwater baffle.

[0012] Preferably, the sector plate is provided with two, the outer walls of the two sector plates are provided with annular stoppers and annular cylinders, the rotating shaft is arranged in the annular stopper, the annular stopper is arranged in the annular cylinder, the two torsion springs are connected with the two annular stoppers respectively, and the torsion springs are arranged in the annular cylinder.

[0013] Preferably, the top of the water inlet pipe is provided with a rainwater groove.

[0014] Preferably, the bottom of the small water storage tank and the large water storage tank is provided with a water outlet hole, the outer wall of the fixed frame is provided with a mounting hole, and the fixed frame is connected with a well lid.

[0015] Compared with the prior art, the rainwater and sewage diversion device for the courtyard ground sewer has the following beneficial effects: 1. The courtyard ground sewer rain and sewage separation device, by setting the sewage baffle and the rainwater baffle, when the rainwater baffle is opened, the limiting assembly is arranged to lock the sewage baffle to be closed; but when the sewage baffle is opened, if the large water storage tank is full of water, under the action of gravity, the rainwater baffle is opened again, at this time, the sewage baffle is closed, so that the sewage in the courtyard flows into the sewage pipe on sunny days; when it rains, the water flowing into the courtyard flows into the rainwater pipe, avoiding rainwater into the sewage pipe network, which can realize the core function of rain and sewage separation from the source and improve the efficiency of sewage treatment.

[0016] 2. The courtyard ground sewer rain and sewage separation device, by setting the torsional spring, when the sewage baffle and the rainwater baffle rotate, the torsional spring on both sides is driven to generate torsion, at this time, the metal material in the torsional spring generates elastic potential energy due to deformation, so that the energy is stored, when the external force disappears, the torsional spring releases the stored elastic potential energy by relying on the elastic restoring force, and the reset action of the sewage baffle or the rainwater baffle is realized.

[0017] 3. The courtyard ground sewer rain and sewage separation device, the limiting assembly is provided with two groups, one group adopts an arc-shaped cylinder for limiting, that is, when one side of the baffle rotates, the arc-shaped slide rod is driven to move and abuts against the arc-shaped slide rod on the other side to make it unable to move, so that the baffle on the other side is limited, and the limiting assembly of the other group is specifically provided with a supporting rod and a concave limiting block, the concave limiting block can move on the supporting rod, when one side of the baffle rotates, the concave limiting block moves to the other side, if the baffle on the other side rotates, the baffle abuts against the concave limiting block, so that the baffle on the other side cannot rotate, and the limiting operation is formed again, and the limiting effect is improved. DETAILED DESCRIPTION

[0018] Figure 1 A structure diagram of the well lid in the courtyard ground sewer rain and sewage separation device is provided in the application. Figure 2 A structure diagram of the courtyard ground sewer rain and sewage separation device is provided in the application. Figure 3 A structure diagram of the bottom of the courtyard ground sewer rain and sewage separation device is provided in the application. Figure 4 A structure diagram of the sewage baffle opening in the courtyard ground sewer rain and sewage separation device is provided in the application. Figure 5 A main view of the courtyard ground sewer rain and sewage separation device is provided in the application. Figure 6 A main view of the courtyard ground sewer rain and sewage separation device is provided in the application. Figure 5 An enlarged diagram of part A of the courtyard ground sewer rain and sewage separation device is provided in the application. Figure 7A structure schematic view of a sewage baffle and a torsion spring in a rain and sewage separation device for a courtyard ground sewer is provided in the present application. Figure 8 A structure schematic view of a ring-shaped cylinder and a torsion spring in a rain and sewage separation device for a courtyard ground sewer is provided in the present application. Figure 9 A sectional view schematic view of an arc-shaped cylinder in a rain and sewage separation device for a courtyard ground sewer is provided in the present application. Figure 10 A sectional view schematic view of a supporting rod in a rain and sewage separation device for a courtyard ground sewer is provided in the present application.

[0019] In the figure: 1, fixed frame; 101, rotating shaft; 102, sewage baffle; 103, rainwater baffle; 104, sewage inlet; 105, water inlet pipe; 106, rainwater tank; 107, small water storage tank; 108, large water storage tank; 109, drain hole; 110, mounting hole; 111, well lid; 112, clamping groove; 2, fan-shaped plate; 201, ring-shaped stop block; 202, ring-shaped cylinder; 203, torsion spring; 3, arc-shaped cylinder; 301, arc-shaped sliding rod; 302, first sliding block; 303, second sliding block; 304, elastic member; 4, supporting rod; 401, sliding groove; 402, concave limiting block; 403, guide rod; 404, limiting spring; 405, large inclined surface. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0022] Embodiment one: Reference Figures 1-10The utility model provides a rain and sewage separation device for yard ground sewer, which comprises a fixed frame 1, a rotating shaft 101 arranged on the fixed frame 1, a sewage baffle 102 and a rainwater baffle 103 rotatably connected to the rotating shaft 101 respectively, and corresponding clamping grooves 112 arranged on the sewage baffle 102 and the rainwater baffle 103; a small water storage tank 107 is arranged at the bottom of the sewage baffle 102, and a sewage inlet 104 is arranged on the sewage baffle 102; a large water storage tank 108 is arranged at the bottom of the rainwater baffle 103, a rainwater inlet is arranged on the rainwater baffle 103, a fan-shaped plate 2 is fixedly arranged on the fixed frame 1, and a limiting assembly is arranged on the fan-shaped plate 2.

[0023] In the embodiment, on a non-rainy day, the residents can discharge sewage through the sewage inlet 104, and the sewage entering the sewage inlet 104 will flow into the small water storage tank 107. As the amount of sewage in the small water storage tank 107 increases, the end of the sewage baffle 102 away from the rotating shaft 101 will be opened under the action of gravity, and the sewage will flow into the sewage pipe discharge opening arranged at the bottom of the sewage baffle 102 through the gap. On a rainy day, rainwater will enter the large water storage tank 108 through the rainwater inlet. As the amount of rainwater in the large water storage tank 108 increases, the end of the rainwater baffle 103 away from the rotating shaft 101 will be opened under the action of gravity, and the surface rainwater will flow into the rainwater pipe discharge opening arranged at the bottom of the rainwater baffle 103 through the opening.

[0024] In the absence of water, the rainwater baffle 103 and the sewage baffle 102 are arranged horizontally and abut against the fixed frame 1, and at this time, the rainwater baffle 103 and the sewage baffle 102 are in a closed state. It should be noted that when the rainwater baffle 103 rotates, the limiting assembly limits the rotation of the sewage baffle 102, thereby avoiding the mixing of rainwater and sewage and ensuring that rainwater and sewage cannot be discharged into the sewage treatment pipe network at the same time, thus achieving the core function of rainwater and sewage separation from the source and ensuring the effect of subsequent rainwater reuse and sewage treatment. The limiting assembly limits the unnecessary rotation of the baffle through a mechanical structure, avoids the misoperation of the baffle due to water flow impact, vibration and other factors, prolongs the service life of the device, reduces the subsequent sewage treatment workload, and improves the sewage treatment efficiency.

[0025] Reference Figure 1 and Figure 3The bottom of the small water storage tank 107 and the large water storage tank 108 is provided with a drain hole 109, the outer wall of the fixed frame 1 is provided with a mounting hole 110, and the fixed frame 1 is connected with a well lid 111; through the opened drain hole 109, when there is no continuous entry of rainwater and sewage, the water flow in the large water storage tank 108 and the small water storage tank 107 can flow out through the drain hole 109, and then the sewage baffle 102 and the rainwater baffle 103 are closed again to form a blockage, and the rainwater and sewage diversion device in the application can be installed and connected on the well lid 111 for use, at this time, the fixed frame 1 can be installed on the well lid 111 through the mounting hole 110, and of course, the fixed frame 1 can also be used alone, and the fixed frame 1 can be installed on the well wall or the sewer through the mounting hole 110.

[0026] Embodiment two: Refer to Figures 1-10 A rainwater and sewage diversion device for a courtyard ground sewer, comprising a fixed frame 1, further comprising a rotating shaft 101 arranged on the fixed frame 1, a sewage baffle 102 and a rainwater baffle 103 are rotatably connected to the rotating shaft 101 respectively, and corresponding clamping grooves 112 are arranged on the sewage baffle 102 and the rainwater baffle 103; a small water storage tank 107 is arranged at the bottom of the sewage baffle 102, and a sewage inlet 104 is arranged on the sewage baffle 102; a large water storage tank 108 is arranged at the bottom of the rainwater baffle 103, a rainwater inlet is arranged on the rainwater baffle 103, a fan-shaped plate 2 is fixedly arranged on the fixed frame 1, and a limiting assembly is arranged on the fan-shaped plate 2.

[0027] Refer to Figure 7 And Figure 8 Further comprising two torsional springs 203, which are sleeved on both ends of the rotating shaft 101, one of the two torsional springs 203 is arranged between the sewage baffle 102 and the inner wall of the fixed frame 1, and the other torsional spring 203 is arranged between the rainwater baffle 103 and the inner wall of the other side of the fixed frame 1.

[0028] When the sewage baffle 102 and the rainwater baffle 103 rotate, the torsional springs 203 on both sides will generate torsion, so that the spring ring of the torsional spring 203 twists around the axis, at this time, the metal material inside the torsional spring 203 generates elastic potential energy due to deformation, so that the energy is stored, when the external force disappears, the torsional spring 203 will release the stored elastic potential energy by relying on the elastic restoring force of itself, so that the spring ring returns to the initial stress-free state, so as to realize the reset action of the sewage baffle 102 or the rainwater baffle 103, and the clamping grooves 112 arranged can facilitate the relative rotation of the sewage baffle 102 and the rainwater baffle 103, and facilitate the connection of the two with the torsional spring 203.

[0029] Embodiment three: Refer to Figures 1-10The utility model provides a rain and sewage separation device for yard ground sewer, which comprises a fixed frame 1, a rotating shaft 101 arranged on the fixed frame 1, a sewage baffle 102 and a rainwater baffle 103 rotatably connected to the rotating shaft 101 respectively, and corresponding clamping grooves 112 arranged on the sewage baffle 102 and the rainwater baffle 103; a small water storage tank 107 is arranged at the bottom of the sewage baffle 102, and a sewage inlet 104 is arranged on the sewage baffle 102; a large water storage tank 108 is arranged at the bottom of the rainwater baffle 103, a rainwater inlet is arranged on the rainwater baffle 103, a fan-shaped plate 2 is fixedly arranged on the fixed frame 1, and a limiting assembly is arranged on the fan-shaped plate 2.

[0030] With reference to Figures 5-10 , the limiting assembly comprises an arc-shaped cylinder 3 fixedly arranged on the fan-shaped plate 2 and a supporting rod 4 fixedly connected to the fan-shaped plate 2, the bottoms of the sewage baffle 102 and the rainwater baffle 103 are provided with arc-shaped sliding rods 301, the two arc-shaped sliding rods 301 are slidably connected to the two ends of the arc-shaped cylinder 3, and the supporting rod 4 is slidably connected with a concave limiting block 402.

[0031] With reference to Figure 5 , Figure 7 and Figure 9 , a plurality of second sliding blocks 303 are slidably arranged in the arc-shaped cylinder 3, elastic members 304 are arranged between the plurality of second sliding blocks 303, the two ends of the arc-shaped cylinder 3 are fixedly connected with first sliding blocks 302, and the two first sliding blocks 302 are in abutment with the two second sliding blocks 303 arranged at the two ends.

[0032] In the embodiment, on a day without rain, the residents can discharge sewage through the sewage inlet 104, the sewage entering the sewage inlet 104 will flow into the small water storage tank 107, and the sewage baffle 102 will be opened at the end far from the rotating shaft 101 under the action of gravity as the amount of sewage in the small water storage tank 107 increases, so that the sewage will flow into the sewage pipe discharge opening arranged at the bottom of the sewage baffle 102; on a rainy day, the rainwater will enter the large water storage tank 108 through the rainwater inlet, and the rainwater baffle 103 will be opened at the end far from the rotating shaft 101 under the action of gravity as the amount of rainwater in the large water storage tank 108 increases, so that the rainwater on the ground will flow into the rainwater pipe discharge opening arranged at the bottom of the rainwater baffle 103.

[0033] Meanwhile, it needs to be explained that when the rain baffle 103 rotates, the limiting assembly can work to achieve rotation limiting of the other end. Here, the rain baffle 103 is taken as an example. When the rain baffle 103 rotates, it will first drive the bottom arc-shaped slide rod 301 to move, and will also drive the concave limiting block 402 to move. When the arc-shaped slide rod 301 moves, it will drive the first slide block 302 to move in the arc-shaped cylinder 3, thereby driving the second slide block 303 abutting thereto to move, thereby compressing the elastic element 304 between the plurality of second slide blocks 303. Then, under the compression force of the elastic element 304, the second slide block 303 farthest from the rain baffle 103 will abut against the first slide block 302 at the bottom of the sewage baffle 102, thereby enabling the arc-shaped slide rod 301 at the bottom of the sewage baffle 102 to support the sewage baffle 102, so that the sewage baffle 102 cannot rotate, achieving the effect of preliminary limiting. The elastic element 304 specifically adopts a spring or a spring sheet.

[0034] Meanwhile, when the sewage baffle 102 rotates, the bottom thereof will also drive the concave limiting block 402 to move when rotating, thereby enabling the concave limiting block 402 to move towards one end of the rain baffle 103. At this time, the concave limiting block 402 will form limiting with the bottom of the rain baffle 103. If the rain baffle 103 rotates, the bottom thereof will contact the elongated concave limiting block 402, thereby enabling the rain baffle 103 to be unable to rotate. Conversely, when the rain baffle 103 rotates, it will drive the concave limiting block 402 to move towards one end of the sewage baffle 102, thereby limiting the rotation of the sewage baffle 102, further achieving the limiting effect.

[0035] With reference to Figure 5 , Figure 6 and Figure 10 , the support rod 4 is provided with a sliding groove 401, and the concave limiting block 402 is also arranged in the sliding groove 401. The middle part of the sliding groove 401 is fixedly provided with a partition plate, and the concave limiting block 402 is provided with a guide rod 403 which is slidingly connected to the partition plate.

[0036] The limiting spring 404 is arranged between the inner wall of the two sides of the concave limiting block 402 and the outer wall of the two sides of the baffle, and is sleeved on the outer wall of the guide rod 403. The concave limiting block 402 is provided with a large inclined surface 405 at the top of one end of the rain baffle 103. The support rod 4 is arranged at the middle position of the bottom of the sewage baffle 102 and the rain baffle 103.

[0037] The main function of the present application is that when the rain baffle 103 is opened, the limiting assembly is arranged to lock the sewage baffle 102 closed; but when the sewage baffle 102 is opened, if the large water storage tank 108 is full of water, at this time the weight of one side of the large water storage tank 108 is greater than that of one side of the small water storage tank 107, at this time under the action of gravity, the gravity of one side of the rain baffle 103 can realize the opening of the rain baffle 103 again, at this time the sewage baffle 102 is closed.

[0038] Specifically, in the present embodiment, when the sewage baffle 102 and the rain baffle 103 rotate, the bottom recessed limiting block 402 is pushed, which makes the recessed limiting block 402 slide in the sliding groove 401, and the guide rod 403 arranged is arranged to slide on the partition plate, thereby improving the movement stability of the recessed limiting block 402, and when the recessed limiting block 402 moves, the two limiting springs 404 located on the guide rod 403 are contracted or elongated, and when the sewage baffle 102 and the rain baffle 103 are reset, the limiting spring 404 can reset the recessed limiting block 402 to the middle position again, facilitating repeated use.

[0039] It should be particularly noted that a large inclined surface 405 is arranged on one end top of the rain baffle 103 on the recessed limiting block 402, when the sewage baffle 102 rotates, if the large water storage tank 108 at the bottom of the rain baffle 103 is full of water at this time, the weight at one end of the rain baffle 103 is larger, under the action of gravity, the rain baffle 103 is rotated, at this time through the limiting assembly, the sewage baffle 102 can be reset again, so that the sewage baffle 102 is closed, avoiding rainwater entering the sewage pipeline, thereby realizing that the sewage in the courtyard flows into the sewage pipe on sunny days; when it rains, the water flowing into the courtyard flows into the rainwater pipe, avoiding rainwater into the sewage pipe network.

[0040] Secondly, a smaller inclined end surface is arranged on one end top of the sewage baffle 102 on the recessed limiting block 402, when the rain baffle 103 is opened, the smaller inclined end surface on the recessed limiting block 402 does not affect the locking of the sewage baffle 102, the large inclined surface 405 and the smaller inclined surface can make the sewage baffle 102 or the rain baffle 103 rotate at a larger angle on one hand, and on the other hand, in the initial state, the sewage baffle 102 and the rain baffle 103 can better push the recessed limiting block 402 to move, and the distance of the recessed limiting block 402 moving to which side is longer, which can limit the rotation of the baffle on which side, and can realize real-time limiting function according to the rotation of the sewage baffle 102 and the rain baffle 103.

[0041] Embodiment four: Reference Figures 1-10The application discloses a rainwater and sewage separation device for a yard ground sewer, and further discloses the following technical scheme.

[0042] The water inlet pipe 105 is provided with a rainwater groove 106 at the top.

[0043] In the embodiment, when the sewage baffle 102 rotates, the torsion spring 203 arranged between the sewage baffle 102 and the ring-shaped block 201 is twisted to generate a torsion force; conversely, when the rainwater baffle 103 rotates, the torsion spring 203 arranged between the rainwater baffle 103 and the ring-shaped block 201 on the other side is twisted to generate a torsion force, so that the resetting operation is facilitated.

[0044] The water inlet pipe 105 is provided as a long hose, and the rainwater groove 106 at the top of the water inlet pipe 105 is arranged at a rainwater enrichment area, such as a roof eave, so that the rainwater can flow into the water inlet pipe 105 quickly in rainy days, and the rainwater can be discharged.

[0045] The above merely describes the preferred embodiments of the application, but the protection scope of the application is not limited to this. Any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the application within the technical scope disclosed by the application, and all of the above should be covered in the protection scope of the application.

Claims

1. A rainwater and sewage separation device for a courtyard ground sewer system, comprising a fixed frame (1), characterized in that, Also includes: A rotating shaft (101) is set on a fixed frame (1). A sewage baffle (102) and a rainwater baffle (103) are rotatably connected on the rotating shaft (101). The sewage baffle (102) and the rainwater baffle (103) are each provided with a corresponding snap-fit ​​groove (112). A small water storage tank (107) is installed at the bottom of a sewage baffle (102), and a sewage inlet (104) is provided on the sewage baffle (102). A large water storage tank (108) is set at the bottom of a rainwater baffle (103), and a water inlet pipe (105) is provided on the rainwater baffle (103). A sector plate (2) is fixedly mounted on a fixed frame (1), and a limiting component is provided on the sector plate (2).

2. The rainwater and sewage separation device for courtyard ground drainage according to claim 1, characterized in that, It also includes two torsion springs (203), which are respectively sleeved on both ends of the rotating shaft (101). One of the torsion springs (203) is installed between the sewage baffle (102) and the inner wall of the fixed frame (1), and the other torsion spring (203) is installed between the rainwater baffle (103) and the inner wall on the other side of the fixed frame (1).

3. A rainwater and sewage separation device for courtyard ground drainage according to claim 2, characterized in that, When the rainwater baffle (103) rotates, the limiting component restricts the rotation of the sewage baffle (102).

4. A rainwater and sewage separation device for courtyard ground drainage according to claim 3, characterized in that, The limiting component includes an arc-shaped cylinder (3) fixedly mounted on the sector plate (2) and a support rod (4) fixedly connected to the sector plate (2). The bottom of the sewage baffle (102) and the rainwater baffle (103) are provided with arc-shaped sliding rods (301). The two arc-shaped sliding rods (301) are slidably connected to the two ends of the arc-shaped cylinder (3). A concave limiting block (402) is slidably connected to the support rod (4).

5. A rainwater and sewage separation device for courtyard ground drainage according to claim 4, characterized in that, Multiple second sliders (303) are slidably arranged inside the arc-shaped cylinder (3). Elastic elements (304) are provided between the multiple second sliders (303). One end of each of the two arc-shaped sliders (301) placed inside the arc-shaped cylinder (3) is fixedly connected to a first slider (302). The two first sliders (302) abut against the two second sliders (303) placed at both ends respectively.

6. A rainwater and sewage separation device for courtyard ground drainage according to claim 4, characterized in that, The support rod (4) is provided with a sliding groove (401), and the concave limiting block (402) is fixedly arranged in the sliding groove (401). A partition is fixedly arranged in the middle part of the sliding groove (401), and a guide rod (403) is provided in the concave limiting block (402). The guide rod (403) is slidably connected to the partition.

7. A rainwater and sewage separation device for courtyard ground drainage according to claim 6, characterized in that, Limiting springs (404) are provided between the inner walls of both sides of the concave limiting block (402) and the outer walls of both sides of the baffle. The limiting springs (404) are sleeved on the outer wall of the guide rod (403). A large inclined surface (405) is provided on the top of one end of the concave limiting block (402) located on the rainwater baffle (103). The support rod (4) is located at the middle position of the bottom of the sewage baffle (102) and the rainwater baffle (103).

8. A rainwater and sewage separation device for courtyard ground drainage according to claim 2, characterized in that, Two sector plates (2) are provided. Annular blocks (201) and annular cylinders (202) are provided on the outer walls of the two sector plates (2). The rotating shaft (101) is located inside the annular blocks (201). The annular blocks (201) are located inside the annular cylinders (202). Two torsion springs (203) are connected to the two annular blocks (201) respectively, and the torsion springs (203) are located inside the annular cylinders (202).

9. A rainwater and sewage separation device for courtyard ground drainage according to claim 1, characterized in that, The top of the water inlet pipe (105) is provided with a rainwater trough (106).

10. A rainwater and sewage separation device for courtyard ground drainage according to claim 1, characterized in that, The bottom of the small water storage tank (107) and the large water storage tank (108) are provided with drainage holes (109), the outer wall of the fixed frame (1) is provided with mounting holes (110), and the fixed frame (1) is connected with a well cover (111).

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