Rainwater flow-limiting drainage device

Abstract

The utility model relates to the technical field of flow-limiting drainage, in particular to a rainwater flow-limiting drainage device which comprises a drainage channel, a U-shaped frame arranged between two first clamping grooves, a flow-limiting plate arranged between two side walls of the U-shaped frame, a screw rod arranged at the top of the flow-limiting plate, a hoist arranged at the top of the U-shaped frame and comprising a box body and a box cover, and the screw rod penetrates through the hoist. A protective fence plate is arranged between the two second clamping grooves. According to the rainwater flow-limiting drainage device, a drainage channel with a first clamping groove and a second clamping groove is arranged, a U-shaped frame with a flow-limiting plate is matched with the first clamping groove in an inserted mode, a protective baffle plate with two filter plates is matched with the second clamping groove in an inserted mode, a hoist is matched with the U-shaped frame, a worm and a worm gear are installed in a box body, and a crank rotates to drive the worm to rotate; under the threaded fit of the threaded rod and the threaded groove in the worm gear, the worm gear is kept rotating in situ, then the threaded rod moves up and down, the flow limiting plate moves up and down, and then the size of the drainage opening of the drainage channel is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of flow limiting discharge, in particular to a rainwater flow limiting discharge device. Background Art

[0002] In the early stages of rainfall, rainwater will be polluted when passing through the atmosphere and the confluence surface. Rainfall is characterized by small amounts and rapidity. It is difficult to meet flood control and drainage standards by relying solely on the current urban underground mainstream infiltration and reuse. Therefore, rainwater drainage facilities must be built in cities based on rainfall characteristics. The key to drainage is to control the flow of underground water storage and reduce flood peaks to reduce the pressure on the underground drainage network. At the same time, it is also necessary to ensure that rainwater on the ground can be effectively discharged to prevent waterlogging in the city and affect the living environment of residents.

[0003] The utility model with the announcement number CN210684951U discloses a rainwater flow limiting and discharge device, including a device body, an arc-shaped baffle fixedly installed near the left side of the bottom end of the device body, a No. 1 rotating shaft is provided on the right side wall of the device body, a V-shaped rod is fixedly installed on the No. 1 rotating shaft, a limit pin is provided on the left side of the V-shaped rod, a flow limiting plate is installed on the left lower end of the V-shaped rod, a floating block is installed on the right lower end of the V-shaped rod, a drainage pipe is fixedly installed on the right bottom end of the device body, a heating ring is provided on the drainage pipe, and a sewage treatment tank is fixedly installed on the right side of the drainage pipe;

[0004] The above technical solution, by setting a flow limiting plate and a float block, in conjunction with a V-shaped rod, can automatically adjust and limit the flow rate. By setting a biofilm water purification tank, it has a good effect of purifying sewage. At the same time, a manhole cover with a concave and convex surface is set, which can allow rainwater to flow into the device body more quickly, and can effectively prevent a large amount of water from accumulating on the road. However, when purifying rainwater in an outdoor drainage purification pool, the external rainwater is rapid and the water volume is large. The flow limiting discharge device cannot be used stably for a long time based on the flow limiting plate and the float block, and the discharge diameter cannot be manually adjusted. In addition, the particulate impurities mixed in the rainwater can easily cause blockage in the discharge pipe, and the particulate impurities continue to enter the purification pool, causing the purification pool to be difficult to clean, and it is not convenient to intercept and filter the rainwater when the rainwater is limited in flow discharge. Utility Model Content

[0005] The purpose of the present utility model is to provide a rainwater flow limiting discharge device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A rainwater flow limiting and discharge device comprises a drain channel, a first slot is symmetrically provided in the middle of the inner wall of the drain channel, a U-shaped frame is provided between the two first slots, a flow limiting plate is provided between the two side walls of the U-shaped frame, a screw is provided on the top of the flow limiting plate, a hoist is provided on the top of the U-shaped frame, the hoist comprises a box body and a box cover, the screw passes through the hoist, a second slot is symmetrically provided near the left end inside the drain channel, a guardrail is provided between the two second slots, and a detachable and replaceable filter plate is symmetrically inserted in the middle of the guardrail.

[0008] Preferably, the width of the outer wall of the U-shaped frame is adapted to the width of the inner wall of the first slot, and the U-shaped frame is fixedly connected to the drain channel by screws.

[0009] In the present invention, the provision of the first slot helps the U-shaped frame to be stably plugged into the drainage channel, thereby increasing the stability of the combination.

[0010] Preferably, limiting grooves are symmetrically provided on the inner wall of the U-shaped frame, first clamping blocks are provided on both sides of the limiting plate corresponding to the limiting grooves, a fixing seat is provided at the bottom of the screw, and the fixing seat is fixedly connected to the limiting plate by screws.

[0011] In the present utility model, the first clamping block and the flow limiting plate are an integrally formed structure. The first clamping block is slidably connected to the limiting groove, which helps the flow limiting plate to move up and down in the frame. The screw is fixedly installed with the flow limiting plate with the cooperation of the screw, and the top of the screw passes through the top of the U-shaped frame, and the screw slides with the U-shaped frame.

[0012] Preferably, a second positioning ring is provided in the middle of the bottom of the box body, a worm gear is provided above the second positioning ring, a thread groove is provided in the middle of the worm gear corresponding to the screw, positioning rings are provided on both sides of the worm gear, a worm is provided in the box body corresponding to the worm gear, one end of the worm gear extends out of the box body, and a crank is provided at the end.

[0013] In the utility model, the screw is threadedly connected to the thread groove, and the rotation of the worm wheel drives the screw to engage and move up and down in the worm wheel. With the cooperation of the second positioning ring, the positioning ring is rotatably connected to the first rotating groove opened on the second positioning ring, thereby realizing the limited cooperation of the bottom position of the worm wheel. With the cooperation of the handle, it helps to provide a fulcrum, making it convenient for outsiders to manually rotate the worm.

[0014] Preferably, both ends of the worm are rotatably connected to the box through bearings, the worm is engaged with the worm wheel, and a second rotation groove is provided at the top of the second positioning ring corresponding to the positioning ring.

[0015] In the utility model, the inner ring of the bearing is bonded and fixed to the worm, and the outer ring of the bearing is bonded and fixed to the housing. With the cooperation of the bearing, the worm and the housing can rotate flexibly. The rotation of the worm drives the worm wheel to rotate, and the rotation of the crank drives the worm wheel to rotate, thereby realizing the up and down movement of the screw in the housing, so as to achieve the upper and lower position adjustment of the flow limiting plate. When the flow limiting plate moves upward, the rainwater discharge outlet in the drainage channel is enlarged and adjusted. When the flow limiting plate moves downward, the rainwater discharge outlet in the drainage channel is reduced and adjusted.

[0016] Preferably, a limit plate is provided on the lower surface of the box cover corresponding to the internal space of the box body, a first positioning ring is provided on the lower surface of the box cover, a first rotation groove is provided at the bottom of the first positioning ring corresponding to the positioning ring, a plurality of through holes are provided on the box cover near the edge, fastening bolts are provided in the through holes, and screw holes are provided at the top of the box body corresponding to the through holes.

[0017] In the present invention, the limiting plate and the box cover are an integrally formed structure, and the width of the outer wall of the limiting plate is adapted to the width of the inner wall of the box. With the cooperation of the limiting plate, it helps to stably plug and install the box cover and the box body. The fastening bolts pass through the through holes and are threadedly connected to the screw holes, thereby achieving stable installation and cooperation between the box cover and the box body.

[0018] Preferably, a second card block is provided on the outer walls on both sides of the guardrail plate corresponding to the second card slot, an opening is provided on the top of the guardrail plate, and a through groove connected to the opening is provided on the side of the guardrail plate, and sliding grooves are symmetrically provided on the inner walls on both sides of the through groove.

[0019] In the utility model, the cooperation of the second card groove helps the guardrail plate to be installed with the drainage channel through the second card block. The cooperation of the through groove facilitates drainage on both sides. The cooperation of the slide groove helps the filter plate to be stably plugged in and installed.

[0020] Preferably, the width of the outer wall of the filter plate is matched with the width of the inner wall of the chute, a filter screen is provided in the middle of the filter plate, and a handle is provided on the top of each filter plate.

[0021] In the utility model, two filter plates are provided and matched with the filter screen, and the double layer filters and intercepts the rainwater entering the drainage channel, thereby reducing the amount of particulate impurities entering the purification pool through the drainage channel and affecting the cleaning of the purification pool. The pull handle is welded and fixed to the filter plate. With the cooperation of the pull handle, it is convenient to provide a fulcrum, making it convenient to take out, replace and clean the filter plate.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. The utility model is provided with a drainage channel with a first slot and a second slot, a U-shaped frame with a flow limiting plate is plugged into and matched with the first slot, a protective baffle with two filter plates is plugged into and matched with the second slot, the U-shaped frame is matched with a hoist, a worm and a worm wheel are installed in the box body, the rotation of the crank drives the worm to rotate, and the worm wheel rotates synchronously. Under the cooperation of the thread groove on the screw and the worm wheel, the worm wheel is kept rotating in place, and then the screw is moved up and down, and the flow limiting plate is moved up and down, and the drainage diameter of the drainage channel is adjusted.

[0024] 2. The utility model sets a protective baffle and cooperates with two detachable filter plates. With the cooperation of the pull handle, the filter plate can be easily removed from the protective baffle for cleaning. The two filter plates cooperate with two filter screens to intercept and filter the particulate impurities in the rainwater in the drainage channel in a double layer, reducing the particulate impurities that enter the purification pool and affect cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the overall adjustment current limiting state structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the combined structure of the drainage channel and the guardrail of the present utility model;

[0028] Figure 4 This is a schematic diagram of the combined structure of the U-shaped frame and the current limiting plate of the utility model;

[0029] Figure 5 This is a schematic diagram of the combined structure of the U-shaped frame and the hoist of the utility model;

[0030] Figure 6 This is a schematic diagram of the combined structure of the flow limiting plate and the screw of the present utility model;

[0031] Figure 7 This is a schematic diagram of the hoist of the present invention in an open state;

[0032] Figure 8 This is a bottom view of the box cover and box body combination of the present invention.

[0033] The meaning of each number in the figure is:

[0034] 1. Drainage channel; 10. First card slot; 11. Second card slot;

[0035] 2. U-shaped frame; 20. Limiting slot;

[0036] 3. Current limiting plate; 30. First clamping block; 31. Screw; 32. Fixed seat;

[0037] 4. Box body; 40. Box cover; 400. Stop plate; 401. Through hole; 402. Fastening bolt; 403. First positioning ring; 404. First rotating groove; 41. Worm gear; 410. Threaded groove; 411. Positioning ring; 42. Worm; 420. Crank handle; 43. Second positioning ring; 430. Second rotating groove; 44. Screw hole;

[0038] 5. Guardrail; 50. Through slot; 500. Slide; 51. Second clamping block; 52. Filter plate; 520. Filter screen; 521. Handle. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0040] See also Figures 1-8 , this embodiment provides a technical solution:

[0041] A rainwater flow limiting and discharge device includes a drain channel 1, a first card slot 10 is symmetrically opened in the middle of the inner wall of the drain channel 1, a U-shaped frame 2 is provided between the two first card slots 10, the width of the outer wall of the U-shaped frame 2 is adapted to the width of the inner wall of the first card slot 10, and the U-shaped frame 2 is fixedly connected to the drain channel 1 by screws.

[0042] In the present invention, the provision of the first slot 10 helps the U-shaped frame 2 to be stably plugged into the drain channel 1, thereby increasing the stability of the combination.

[0043] Furthermore, a flow limiting plate 3 is provided between the two side walls of the U-shaped frame 2, a screw 31 is provided on the top of the flow limiting plate 3, and a limiting groove 20 is symmetrically opened on the inner wall of the U-shaped frame 2. A first clamping block 30 is provided on both sides of the flow limiting plate 3 corresponding to the limiting groove 20, and a fixing seat 32 is provided at the bottom of the screw 31, and the fixing seat 32 is fixedly connected to the flow limiting plate 3 by screws.

[0044] In the present invention, the first clamping block 30 and the flow limiting plate 3 are an integrally formed structure. The first clamping block 30 is slidably connected to the limiting groove 20, which helps the flow limiting plate 3 to move up and down in the U-shaped frame 2. The screw 31 is fixedly installed with the flow limiting plate 3 with the cooperation of the screw, and the top of the screw 31 passes through the top of the U-shaped frame 2, and the screw 31 slides with the U-shaped frame 2.

[0045] Specifically, a gate opening and closing machine is provided on the top of the U-shaped frame 2, and the gate opening and closing machine includes a box body 4 and a box cover 40. A second positioning ring 43 is provided in the middle of the bottom of the box body 4, and a worm gear 41 is provided above the second positioning ring 43. A threaded groove 410 is provided in the middle of the worm gear 41 corresponding to the screw 31, and positioning rings 411 are provided on both sides of the worm gear 41. A worm 42 is provided in the box body 4 corresponding to the worm gear 41, and one end of the worm gear 42 extends out of the box body 4, and a crank 420 is provided at the end.

[0046] In the present utility model, the screw 31 is threadedly connected to the thread groove 410, and the rotation of the worm wheel 41 drives the screw 31 to engage and move up and down in the worm wheel 41. With the cooperation of the second positioning ring 43, the positioning ring 411 is rotatably connected with the second rotating groove 430 opened on the second positioning ring 43, thereby realizing the limited cooperation of the bottom position of the worm wheel 41. With the cooperation of the crank 420, it helps to provide a fulcrum, which is convenient for outside personnel to manually rotate the worm 42.

[0047] It should be noted that both ends of the worm 42 are rotatably connected to the housing 4 through bearings, the worm 42 is engaged with the worm wheel 41 , and a second rotation groove 430 is provided at the top of the second positioning ring 43 corresponding to the positioning ring 411 .

[0048] In the present utility model, the inner ring of the bearing is bonded and fixed to the worm 42, and the outer ring of the bearing is bonded and fixed to the box body 4. With the cooperation of the bearing, the worm 42 and the box body 4 can rotate flexibly. The rotation of the worm 42 drives the worm wheel 41 to rotate, and the rotation of the crank 420 drives the worm wheel 41 to rotate, thereby realizing the up and down movement of the screw 31 in the box body 4, achieving the upper and lower position adjustment of the flow limiting plate 3. When the flow limiting plate 3 moves upward, the rainwater discharge outlet in the drain 1 is adjusted to become larger. When the flow limiting plate 3 moves downward, the rainwater discharge outlet in the drain 1 is adjusted to become smaller.

[0049] Furthermore, a limit plate 400 is provided on the lower surface of the box cover 40 corresponding to the internal space of the box body 4, a first positioning ring 403 is provided on the lower surface of the box cover 40, a first rotation groove 404 is provided at the bottom of the first positioning ring 403 corresponding to the positioning ring 411, a plurality of through holes 401 are provided on the box cover 40 near the edge, and fastening bolts 402 are provided in the through holes 401, and screw holes 44 are provided at the top of the box body 4 corresponding to the through holes 401.

[0050] In the present invention, the limiting plate 400 and the box cover 40 are an integrally formed structure, and the width of the outer wall of the limiting plate 400 is adapted to the width of the inner wall of the box body 4. With the cooperation of the limiting plate 400, it helps to stably plug and install the box cover 40 and the box body 4. The fastening bolt 402 passes through the through hole 401 and is threadedly connected to the screw hole 44, thereby achieving stable installation and cooperation between the box cover 40 and the box body 4.

[0051] Specifically, the screw 31 passes through the gate, and a second slot 11 is symmetrically provided inside the drain channel 1 near the left end. A guardrail 5 is provided between the two second slots 11, and a detachable and replaceable filter plate 52 is symmetrically inserted in the middle of the guardrail 5.

[0052] Secondly, second blocks 51 are provided on the outer walls on both sides of the guardrail 5 corresponding to the second slots 11, an opening is provided on the top of the guardrail 5, and a through slot 50 connected to the opening is provided on the side of the guardrail 5, and sliding grooves 500 are symmetrically provided on the inner walls on both sides of the through slot 50.

[0053] In the present invention, the cooperation of the second card slot 11 helps the guardrail plate 5 to be installed and matched with the drain channel 1 through the second card block 51. The cooperation of the through groove 50 facilitates the drainage cooperation on both sides. The cooperation of the slide groove 500 helps the filter plate 52 to be stably plugged and installed.

[0054] It is worth adding that the width of the outer wall of the filter plate 52 is adapted to the width of the inner wall of the chute 500 , a filter screen 520 is provided in the middle of the filter plate 52 , and a pull handle 521 is provided on the top of each filter plate 52 .

[0055] In the present invention, two filter plates 52 are provided and cooperate with the filter screen 520, and the double layer filters and intercepts the rainwater entering the drain 1, reducing the particulate impurities from entering the purification pool through the drain 1 and affecting the cleaning of the purification pool. The pull handle 521 is welded and fixed to the filter plate 52. With the cooperation of the pull handle 521, it is convenient to provide a fulcrum, making it convenient to take out, replace and clean the filter plate 52.

[0056] When the rainwater flow limiting discharge device of this embodiment is in use, the user first installs the drain channel 1 with the first card slot 10 and the second card slot 11 corresponding to the section of the road where the rainwater needs to be discharged into the purification pool, and then the flow limiting plate 3 is plugged into the limiting slot 20 on the U-shaped frame 2 through the first card block 30, and the bottom of the screw 31 is fixed to the flow limiting plate 3 through the fixing seat 32, the top of the screw 31 passes through the U-shaped frame 2, and the bottom of the box body 4 is fixed to the U-shaped frame 2 by screws, and the screw 31 penetrates the box body 4 and passes out from the box cover 40, and the screw 31 is threadedly connected to the thread groove 410 on the worm gear 41, and the worm gear 41 The bottom is rotatably engaged with the second rotating groove 430 on the second positioning ring 43, the worm 42 with the crank 420 is installed inside the box body 4, and the worm 42 is engaged with the worm wheel 41. The box cover 40 is assembled and connected to the box body 4 through the limit plate 400. The bottom of the box cover 40 is rotatably connected to the positioning ring 411 through the first positioning ring 403. Finally, the fastening bolt 402 is passed through the through hole 401 and threadedly connected to the screw hole 44 to achieve a tight fit between the box cover 40 and the box body 4. The filter plate 52 with two filters 520 is plugged into the guardrail plate 5, and the guardrail plate 5 is plugged into the second slot 11 on the drain channel 1.

[0057] When the amount of rainwater needs to be guided into the purification pool for treatment, it enters the drainage channel 1 in a centralized manner. With the preliminary interception cooperation of the two filter screens 520, the incoming rainwater is initially intercepted and filtered, thereby reducing the large particles of impurities mixed in the rainwater from entering the purification pool and affecting the cleanliness of the purification pool. When the amount of rainwater is large and the drainage channel 1 needs to be adjusted to flow faster, the crank handle 420 is manually rotated forward. With the forward rotation cooperation of the worm 42, the worm gear 41 is driven to rotate forward. The worm gear 41 rotates forward in the original position, and the screw 31 is threadedly connected to the worm gear 41, thereby realizing the upward movement of the screw 31, driving the flow restriction plate 3 to move upward, and the drainage speed is increased. When the amount of rainwater is small and the drainage channel 1 needs to flow slowly, the crank handle 420 is manually rotated in the reverse direction to prompt the screw 31 to move downward, the flow restriction plate 3 to move downward, and the drainage speed is slow. The overall assembly is easy to install and convenient for manual operation. In addition, when the two filter plates 52 are used for a long time, the pull handle 521 is used to help remove the cleaning agent, and the large particles of impurities in the rainwater are continuously intercepted.

Claims

1. A rainwater flow limiting discharge device, comprising a drainage channel (1), characterized in that: A first card slot (10) is symmetrically provided in the middle of the inner wall of the drainage channel (1), a U-shaped frame (2) is provided between the two first card slots (10), a flow limiting plate (3) is provided between the two side walls of the U-shaped frame (2), a screw (31) is provided on the top of the flow limiting plate (3), a hoist is provided on the top of the U-shaped frame (2), the hoist comprises a box body (4) and a box cover (40), the screw (31) passes through the hoist, a second card slot (11) is symmetrically provided inside the drainage channel (1) near the left end, a guardrail (5) is provided between the two second card slots (11), and a detachable and replaceable filter plate (52) is symmetrically inserted in the middle of the guardrail (5).

2. The rainwater flow limiting discharge device according to claim 1, characterized in that: The width of the outer wall of the U-shaped frame (2) is adapted to the width of the inner wall of the first slot (10), and the U-shaped frame (2) is fixedly connected to the drain channel (1) via screws.

3. The rainwater flow limiting discharge device according to claim 1, characterized in that: The inner wall of the U-shaped frame (2) is symmetrically provided with a limiting groove (20), and first clamping blocks (30) are provided on both sides of the limiting plate (3) at positions corresponding to the limiting groove (20). A fixing seat (32) is provided at the bottom of the screw rod (31), and the fixing seat (32) is fixedly connected to the limiting plate (3) by screws.

4. The rainwater flow limiting discharge device according to claim 1, characterized in that: A second positioning ring (43) is provided in the middle of the bottom of the box body (4), a worm wheel (41) is provided above the second positioning ring (43), a thread groove (410) is provided in the middle of the worm wheel (41) corresponding to the screw (31), positioning rings (411) are provided on both sides of the worm wheel (41), a worm (42) is provided in the box body (4) corresponding to the worm wheel (41), one end of the worm (42) extends out of the box body (4), and a crank (420) is provided at the end.

5. The rainwater flow limiting discharge device according to claim 4, characterized in that: Both ends of the worm (42) are rotatably connected to the housing (4) via bearings, the worm (42) is meshed with the worm wheel (41), and a second rotation groove (430) is provided at the top of the second positioning ring (43) corresponding to the positioning ring (411).

6. The rainwater flow limiting discharge device according to claim 1, characterized in that: A limiting plate (400) is provided on the lower surface of the box cover (40) at a position corresponding to the internal space of the box body (4); a first positioning ring (403) is provided on the lower surface of the box cover (40); a first rotation groove (404) is provided at the bottom of the first positioning ring (403) at a position corresponding to the positioning ring (411); a plurality of through holes (401) are provided on the box cover (40) near the edge; fastening bolts (402) are provided in the through holes (401); screw holes (44) are provided at the top of the box body (4) at positions corresponding to the through holes (401).

7. The rainwater flow limiting discharge device according to claim 1, characterized in that: Second clamping blocks (51) are provided on both sides of the outer walls of the guardrail (5) at positions corresponding to the second clamping slots (11); an opening is provided on the top of the guardrail (5); and a through slot (50) communicating with the opening is provided on the side of the guardrail (5); and sliding slots (500) are symmetrically provided on both sides of the inner walls of the through slot (50).

8. The rainwater flow limiting discharge device according to claim 7, characterized in that: The width of the outer wall of the filter plate (52) is adapted to the width of the inner wall of the chute (500), a filter screen (520) is provided in the middle of the filter plate (52), and a handle (521) is provided on the top of each filter plate (52).

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