CN211285911U - Hydraulic self-control flow-limiting sewage interception gate device - Google Patents

Abstract

The utility model aims at providing a reasonable in design, current-limiting accurate, and low in manufacturing cost's water conservancy automatic control current-limiting cuts dirty gate device. A blowdown mouth department in sewage intercepting well is located to water conservancy automatic control current-limiting sewage intercepting gate device, include the lock chamber and install flat bottom surface flotation tank, drive assembly, gate and the restriction in the lock chamber the flotation tank come-up is at the stop collar of allowed band. The floating box with the flat bottom surface is adopted, so that the draft of the floating box is reduced, the gate can be timely driven through the transmission assembly under the condition that the water depth in the gate chamber is shallow, the opening height of the gate is automatically controlled, and the effect of accurately limiting the water amount flowing into a sewage outlet during rainfall is achieved; by arranging the limiting sleeve, the gate also has the minimum opening height during rainstorm, and the design of accurate flow limiting rather than flow cutoff is realized. The utility model discloses be applied to the technical field of confluence system drainage.

Description

Hydraulic self-control flow-limiting sewage interception gate device

Technical Field

The utility model relates to a technical field of confluence system drainage, in particular to water conservancy automatic control current limiting cuts dirty gate device.

Background

The combined system is a drainage mode of collecting and conveying rainwater and domestic sewage by using the same pipeline and is also a drainage mode causing water environment pollution, so that a sewage interception measure should be taken, but the existing sewage interception well and the device thereof have many problems and seriously affect the sewage interception effect.

The existing sewage intercepting well and the device thereof have the following problems:

1. the common sewage intercepting well is not provided with a flow-limiting sewage intercepting device. During the rainstorm, the rain-sewage mixed water entering the sewage draining exit is continuously increased along with the rising of the water level in the sewage intercepting well, and the designed intercepting sewage amount is often far exceeded. When a large amount of low-concentration rain and sewage mixed water which does not need to be treated enters a sewage discharge system, the flora required by the process of a sewage treatment plant is difficult to survive, and the sewage treatment plant can bear heavy load.

2. The existing intercepting well is provided with a rotational flow limiting valve, a valve cavity of the intercepting well does not contain any movable part, and the cross-sectional area of water passing is reduced by forming an air column in the middle of the valve cavity so as to achieve the purpose of limiting and controlling the intercepting flow. Although the rotational flow restriction valve can make the water level in the sewage intercepting well rise without obviously increasing the rain and sewage mixed water entering the sewage draining exit, the product is expensive in cost, and the model of the product needs to be determined by UFT company by adopting a specially developed computer program.

3. Some cut dirty well and installed the floater (or the flotation pontoon) of protruding bottom surface and form water conservancy automatic control and cut dirty gate, during the torrential rain, when cutting the interior water level of dirty well and rise to a certain position and close the drain gate completely, at the in-process of closing the drain gate, because the action is slow when cutting the interior water level of dirty well lower, there is the water yield that gets into the drain far beyond the design and cuts the problem of dirty flow. Should open the drain gate automatically after the rain stops, nevertheless because the drain bottom elevation of intercepting well often is difficult to satisfy at river course design flood level or receive the regulation above the pipeline design water level, consequently, the water level is higher in intercepting the sewage well, and when river course or pipeline water level still are higher than intercepting the water level in the sewage well, even install flap valve or duckbill valve at the drain and prevent to flow backward, also can not consequently make the drain gate automatic open, only can wait for river course or pipeline water level to descend and make the water level in intercepting the sewage well descend thereupon, the drain gate just can be opened automatically, the sewage in this period goes out the way and will spill over to river course or pipeline, there is the function defect of intercepting.

4. Some sewage intercepting wells are provided with electric control devices to realize automatic or remote opening and closing of a sewage draining outlet gate (or valve), so that the sewage intercepting flow is controlled. Although the device has the characteristic of accurate current limiting, the device needs to use electric power and is expensive in product cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, provide a reasonable in design, cut dirty effectual and low in manufacturing cost's water conservancy automatic control current-limiting cuts dirty gate device.

The utility model adopts the technical proposal that: the utility model provides a water conservancy automatic control current-limiting cuts dirty gate device locates in cutting dirty well, the water inlet of cutting dirty well is connected and is joined system drain pipe, cut the drain connection blow off pipe of dirty well, cut the flood discharge mouth of dirty well and connect low reaches river course or pipeline, a water conservancy automatic control current-limiting cuts dirty gate device and includes the lock chamber and installs flotation tank, drive assembly, gate and the restriction of the flat bottom surface in the lock chamber the flotation tank come-up is at the stop collar of allowed band, the flotation tank passes through drive assembly with the gate transmission is connected, the gate control the sewage yield of drain, and the flotation tank with the motion direction of gate is opposite.

According to the scheme, the lifting of the gate can be automatically controlled through water power by using the buoyancy and gravity of the buoyancy tank; the floating box with the flat bottom surface is adopted, so that the draft of the floating box is reduced, the gate can be timely driven through the transmission assembly under the condition that the water depth in the gate chamber is shallow, the opening height of the gate is automatically controlled, and the flow-limiting and sewage-intercepting effects are good; the limiting sleeve is arranged, so that the gate is controlled to have the minimum opening height, and the hydraulic self-control flow-limiting sewage interception gate device plays a role in accurately limiting flow instead of cutting off flow. The working characteristics are as follows: in sunny days, all sewage falls into the sewage outlet, and the gate is in a fully open state; in the initial rain stage, the water level in the gate chamber continuously rises along with the increase of rainfall and the opening height of the gate continuously falls along with the increase of rainfall, the flow of the rain and sewage mixed water entering the sewage discharge outlet is gradually increased to gradually decreased, and when the gate is about to play a role in compressing the water cross-sectional area of the sewage discharge outlet, the maximum flow entering the sewage discharge outlet is the product of the designed sewage interception multiple and the designed sewage flow in fine days; during the rainstorm period, although the water level of the lock chamber continuously rises, the gate is maintained at the minimum opening height because the floating box is blocked by the limiting sleeve, and the flow rate of the sewage entering the sewage discharge port during the period is smaller than the designed sewage flow rate in fine days. The problem that the flow entering a drain outlet of the existing hydraulic automatic control sewage interception gate is far beyond the designed sewage interception flow is solved; meanwhile, the problem that the existing hydraulic self-control sewage interception gate can not be automatically opened in the period of high water level of a river or a pipeline is avoided; and the cost of this device is less than prior art's whirl current limiting valve or electric control's cut dirty device, is favorable to promoting and cuts dirty effect and use widely.

Preferably, the lock chamber is located below the cover plate of the sewage intercepting well in a staggered mode, the lock chamber is composed of a frame, a top surface sealing plate, a side surface sealing plate and a grid of the frame, and the buoyancy tank, the transmission assembly, the gate and the limiting sleeve are located inside the lock chamber.

According to the scheme, the gate chamber and the cover plate are arranged in a staggered mode, so that maintainers can enter the sewage intercepting well or floating objects can be cleared; the arrangement of the top surface sealing plate is beneficial to protecting the buoyancy tank, the transmission assembly, the gate and the limiting sleeve; the side sealing plates are arranged to prevent water flow from causing horizontal drift to the buoyancy tank; the arrangement of the grating plays a role in allowing sewage to flow in and preventing floating objects from entering the gate chamber.

One preferred scheme is, the water inlet with the coaxial setting of flood discharge mouth and bottom surface elevation are the same, the interior top elevation of drain equals or is less than the bottom surface elevation of flood discharge mouth, the lock chamber is located drain department, and is located the water inlet with one side of flood discharge mouth axis, the bottom surface elevation of flood discharge mouth is higher than low reaches river course design water level or pipeline design water level.

According to the scheme, the arrangement mode of the water inlet and the flood discharge port is favorable for discharging storm flood, and the arrangement mode of the sewage discharge port is favorable for enabling sewage in sunny days to enter the sewage discharge port, so that the sewage in sunny days is prevented from being discharged into a downstream river channel or a pipeline through the flood discharge port; set up the bottom surface elevation of flood discharge mouth is higher than low reaches river course design water level or piping design water level, is favorable to preventing that river water from flowing backward and getting into cut dirty well if the bottom surface elevation of flood discharge mouth unsatisfied at the regulation above river course design flood level or piping design water level, should set up flap valve or duckbilled valve.

One preferred scheme is, the frame is the setting of cuboid structure, the frame through a plurality of bolt with cut the wall of a well and bottom plate fixed connection of dirty well, the frame is close to drain department with be equipped with the sealed stagnant water board of falling U-shaped between the wall of a well of dirty well, the frame is formed by the equipment of a plurality of stand, a plurality of crossbeam, a plurality of bolt and a plurality of nut.

According to the scheme, the frame is formed by assembling the plurality of upright columns and the plurality of cross beams, so that the sewage intercepting well is convenient to move into and simple to install; the frame is fixed in the sewage intercepting well through the bolts, so that the frame is prevented from shaking and floating due to the driving of the buoyancy tank; the inverted U-shaped sealing plate is arranged to prevent water flow from entering the sewage draining outlet along the gap between the frame and the well wall under the control of the gate.

According to a preferable scheme, the transmission assembly comprises a first vertical rod fixedly connected with the floating box, a second vertical rod fixedly connected with the gate, a first rack and a second rack which are respectively arranged on the first vertical rod and the second vertical rod, a first gear and a second gear which are meshed with the first rack and the second rack correspondingly, and a transmission shaft fixedly arranged between the first gear and the second gear, wherein the gate and the floating box are positioned on different sides of the transmission shaft.

According to the scheme, when the water level in the lock chamber rises, the buoyancy tank floats upwards to drive the first vertical rod to move upwards, the first gear, the transmission shaft and the second gear are driven to rotate through the first rack, and then the second vertical rod is driven to move; and conversely, when the water level in the gate chamber is reduced, the upward movement of the gate is finally realized.

One preferred scheme is that the first vertical rod penetrates through the top of the buoyancy tank and is connected with the concave seat or the convex seat of the inner wall of the bottom of the buoyancy tank, the second vertical rod is fixedly connected with the gate through a mounting seat, the mounting seats are located on the inner side wall of the gate, and the mounting seats are welded with the gate in a factory.

According to the scheme, the first vertical rod and the buoyancy tank can be prevented from being connected with the gate to form the movable hinge, and the first vertical rod and the second vertical rod can be prevented from being unstably moved up and down.

One preferred scheme is that two guiding and limiting assemblies which are respectively matched with the first vertical rod and the second vertical rod are arranged on the transmission assembly, each guiding and limiting assembly comprises an installation sleeve and a bearing sleeve fixedly connected with the installation sleeve, a plurality of first rollers are installed on the installation sleeves in a matched mode, the first rack or the second rack and the first rollers are distributed around the surface of the corresponding first vertical rod or the corresponding second vertical rod, the first rollers are in contact with the corresponding first vertical rod or the corresponding second vertical rod, and the first rack and the second rack are welded with the corresponding first vertical rod and the corresponding second vertical rod in a factory; the bearing sleeve is movably connected with the transmission shaft through a bearing which is fixedly arranged on the transmission shaft in an adaptive manner; the mounting sleeve and the bearing sleeve are welded in a factory; the guide limiting assembly is fixedly connected with the cross beam through a screw and a nut.

It can be seen from the above scheme that, through setting up the spacing subassembly of direction, it includes to have played the fixed transmission shaft the effect of first gear with second gear spatial position to reduce to first montant or the second montant is because of the frictional resistance that the direction produced, still reduce simultaneously to the frictional resistance that the transmission shaft produced.

Preferably, the bearing, the first gear and the second gear are provided with retaining rings at two sides thereof, which are adapted to the transmission shaft.

According to the scheme, the bearing and the gear are prevented from moving along the axial direction of the transmission shaft.

According to a preferable scheme, two sides of the gate are respectively provided with a gate slot, the gate is in sliding fit in the gate slots, two gate slots extend upwards to form a water baffle, the gate is provided with a top water stop plate and a side water stop plate, and the gate slots and the water baffle are welded in a factory; the gate slot and the water baffle are fixed with the cross beam of the frame by adopting a plurality of bolts and nuts; the height of the gate slot is slightly higher than that of the sewage draining outlet.

According to the scheme, the gate slot, the water baffle, the top water stop plate and the side water stop plate are arranged to prevent water flow from flowing along the gap between the water baffle and the sewage draining exit and are not controlled by the gate to enter the sewage draining exit. The gate slot is arranged to be slightly higher than the drain outlet, so that the gate can be guided in a limiting manner.

One preferred scheme is, the stop collar include with the crossbeam adopts screw rod, nut fixed connection's base and a plurality of adaptation to install gyro wheel on the base, a plurality of the second gyro wheel is around first montant surface distribution and a plurality of the gyro wheel all with first montant contacts.

It can be seen by above-mentioned scheme that the setting of stop collar plays the restriction the flotation tank come-up in the effect of allowed band to it is right to reduce the frictional resistance during the direction of first montant control when the lock chamber is high water level the gate has a minimum height of opening, realizes the accurate current-limiting of this scheme rather than the design of cutout.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view in another direction of the present invention;

FIG. 3 is a schematic structural view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of the guide and limit assembly;

fig. 5 is a schematic structural view of the stop collar.

Detailed Description

As shown in fig. 1 and fig. 2, in this embodiment, the hydraulic self-control current-limiting sewage interception gate 8 device is disposed in a sewage interception well 1, a water inlet 2 of the sewage interception well 1 is connected with a combined drainage pipe, a sewage outlet 3 of the sewage interception well 1 is connected with the drainage pipe, a flood discharge outlet 4 of the sewage interception well 1 is connected with a downstream river or pipeline, the hydraulic self-control current-limiting sewage interception gate device includes a gate chamber 5, a floating box 6 with a flat bottom surface mounted on the gate chamber 5, a transmission assembly 7 and a gate 8, the floating box 6 is in transmission connection with the gate 8 through the transmission assembly 7, the gate 8 controls the sewage discharge amount of the sewage outlet 3, the moving directions of the floating box 6 and the gate 8 are opposite, and a limit sleeve 9 for limiting the floating of the floating box 6 to float within an allowable range is further disposed in the gate chamber 5; the power of the gate 8 is mainly derived from the water buoyancy or gravity of the buoyancy tank 6; through adopting the plane bottom flotation tank 6, reduced flotation tank 6's draft the lower condition of depth of water in the lock chamber 5 also can pass through drive assembly 7 in time drives gate 8, automatic control the height of opening of gate 8 makes and cuts dirty flow control at design range to combine the setting stop collar 9, and then control gate 8 has a minimum height of opening, makes water conservancy automatic control current-limiting cuts dirty gate device and plays the effect of accurate current-limiting rather than cutout.

Further, as shown in fig. 1 and 2, the gate chamber 5 is located below the offset of the cover plate 10 of the sewage interception well 1; the lock chamber 5 consists of a frame 11, a top surface sealing plate 12, a side surface sealing plate 13 and a grid 14 of the frame 11; the buoyancy tank 6, the transmission assembly 7, the gate 8 and the limiting sleeve 9 are all positioned inside the gate chamber 5; the lock chamber 5 and the cover plate 10 are arranged in a staggered mode, so that maintainers can enter the sewage intercepting well 1 or floating objects can be cleared; the top surface sealing plate 12 is arranged to be beneficial to protecting the buoyancy tank 6, the transmission assembly 7, the gate 8 and the limiting sleeve 9; the side sealing plates 13 are arranged to prevent water flow from causing horizontal drift to the buoyancy tank 6; the grating 14 is provided to allow the sewage to flow in and prevent the floating materials from entering the chamber 5.

Further, as shown in fig. 1 and fig. 2, the water inlet 2 and the flood discharge opening 4 are coaxially arranged, and have the same elevation at the bottom surface; the top surface elevation of the drain outlet 3 is equal to the bottom surface elevation of the flood discharge outlet 4; the bottom elevation of the flood discharge port 4 meets the regulation above the designed water level of the river channel; the lock chamber 5 is arranged at the sewage draining exit 3 and is positioned at one side of the axis of the water inlet 2 and the flood draining exit 4.

Further, as shown in fig. 1, the frame 11 is a cuboid structure, the frame 11 is connected with the well wall and the bottom plate of the sewage intercepting well 1 through a plurality of bolts, the frame 11 is close to the sewage draining exit 3 and the inverted U-shaped sealing water stop plate 15 made of flexible materials is arranged between the well wall of the sewage intercepting well 1, and the frame 11 is formed by assembling a plurality of stand columns 16, a plurality of cross beams 17, a plurality of bolts and a plurality of nuts.

Further, as shown in fig. 1 and 2, the transmission assembly 7 includes a first vertical rod 18 fixedly connected to the buoyancy tank 6, a second vertical rod 19 fixedly connected to the gate 8, a first rack 20 and a second rack 21 respectively disposed on the first vertical rod 18 and the second vertical rod 19, a first gear 22 and a second gear 23 engaged with the corresponding first rack 20 and the corresponding second rack 21, and a transmission shaft 24 fixedly mounted between the first gear 22 and the second gear 23, where the gate 8 and the buoyancy tank 6 are located on different sides of the transmission shaft 24.

Further, as shown in fig. 1, the first vertical rod 18 penetrates through the top of the buoyancy tank 6 and is connected with a concave seat on the inner wall of the bottom of the buoyancy tank 6, the second vertical rod 19 is fixedly connected with the gate 8 through a mounting seat 25, bolts and nuts, 2 mounting seats 25 are respectively arranged near the upper end and the lower end of the inner wall of the gate 8, and the mounting seats 25 are welded with the gate 8 in a factory.

Further, as shown in fig. 1, 3 and 4, two guiding and limiting assemblies 26 respectively matched with the first vertical rod 18 and the second vertical rod 19 are arranged on the transmission assembly 7, each guiding and limiting assembly 26 includes a mounting sleeve 27 and a bearing sleeve 28 fixedly connected with the mounting sleeve 27, 3 first rollers 30 are fittingly mounted on the mounting sleeve 27, the first rack 20 or the second rack 21 and the 3 first rollers 30 are distributed around the surface of the corresponding first vertical rod 18 or the corresponding second vertical rod 19, the 3 first rollers 30 are in contact with the corresponding first vertical rod 18 or the corresponding second vertical rod 19, and the first rack 20 and the second rack 21 are welded with the corresponding first vertical rod 18 and the corresponding second vertical rod 19 in a factory; the bearing sleeve 28 is movably connected with the transmission shaft 24 through a bearing 29 which is fixedly and fittingly arranged on the transmission shaft 24; the mounting sleeve 27 and the bearing sleeve 28 are welded in a factory; the guide limiting component 26 is fixedly connected with the cross beam 17 by adopting a screw rod and a nut.

Furthermore, retaining rings 31 matched with the transmission shaft 24 are arranged on two sides of the bearing 29, the first gear 22 and the second gear 23.

Further, as shown in fig. 1, both sides of the gate 8 are provided with gate slots 32, and the gate 8 is in sliding fit with the gate slots 32; two gate slots 32 extend upwards to form a water baffle 33, and the gate slots 32 and the water baffle 33 are welded in a factory; the gate 8 is provided with a top water stop plate and a side water stop plate; the gate slot 32 and the water baffle 33 are fixed with the beam 17 by adopting a plurality of bolts and nuts; the height of the gate slot 32 is slightly higher than that of the sewage drain 3.

Further, as shown in fig. 5, the position limiting sleeve 9 includes a base 34 and 4 second rollers 35 adapted to be mounted on the base 34, wherein the 4 second rollers 35 are distributed around the surface of the first vertical rod 18, and the 4 second rollers 35 are all in contact with the first vertical rod 18, and the base 34 is fixedly connected to the cross beam 17 by using a plurality of bolts and nuts.

The utility model discloses a theory of operation:

in sunny days, the gate 8 is in a fully open state, the buoyancy tank 6 is located on the bottom plate in the gate chamber 5, and all sewage in the water inlet 2 in sunny days is collected into the sewage outlet 3 through the grille 14.

In the initial rain period of a rainy day, the water depth in the lock chamber 5 is gradually increased, when the water depth is greater than the draft of the buoyancy tank 6, the gate 8 is gradually lowered according to the proportion of the first gear 22 and the second gear 23, the flow entering the sewage outlet 3 is gradually increased to be gradually decreased, and the maximum flow is the product of the design sewage interception multiple and the design sewage flow in a clear day.

During periods of heavy rain, although the depth of water in the lock chamber 5 is continuously deepened, the gate 8 will be maintained at a minimum opening height due to the buoyancy tank 6 being blocked by the stop collar 9, during which the flow into the sewage discharge outlet 3 is less than the flow of sewage on a sunny day.

After rainstorm, the water depth in the lock chamber 5 becomes shallow, and when the gravity of the buoyancy tank 6 can drive the gate 8 to ascend, the gate 8 gradually ascends according to the proportion of the first gear 22 and the second gear 23 until the gate 8 is completely opened.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims (10)

1. The utility model provides a water conservancy automatic control current-limiting cuts dirty gate device, a water conservancy automatic control current-limiting cuts dirty gate device locates in cutting dirty well (1), water inlet (2) intercommunication confluence system drain pipe of cutting dirty well (1), drain (3) intercommunication blow off pipe of cutting dirty well (1), flood discharge (4) intercommunication low reaches river course or pipeline of cutting dirty well (1), its characterized in that: the utility model provides a water conservancy automatic control current-limiting cuts dirty gate device includes lock chamber (5) and installs flat bottom surface flotation tank (6), drive assembly (7), gate (8) in lock chamber (5) and restriction flotation tank (6) come up at the stop collar (9) of allowed band, flotation tank (6) pass through drive assembly (7) are connected with gate (8) transmission, and flotation tank (6) with the direction of motion of gate (8) is opposite.

2. The hydraulic self-control flow-limiting sewage interception gate device according to claim 1, characterized in that: the sluice chamber (5) is positioned below a cover plate (10) of the sewage intercepting well (1) in a staggered manner, and the sluice chamber (5) consists of a frame (11), a top surface sealing plate (12) arranged on the frame (11), a side surface sealing plate (13) and a grid (14).

3. The hydraulic self-control flow-limiting sewage interception gate device according to claim 1, characterized in that: intercept well (1) water inlet (2) with flood discharge mouth (4) coaxial setting and bottom surface elevation are the same, the top surface elevation of drain (3) equals or is less than the bottom surface elevation of flood discharge mouth (4), floodgate room (5) are located drain (3) department, and are located water inlet (2) with one side of flood discharge mouth (4) axis.

4. The hydraulic self-control flow-limiting sewage interception gate device according to claim 2, wherein: frame (11) are the setting of cuboid structure, frame (11) through a plurality of bolt with cut the wall of a well and the bottom plate fixed connection of dirty well (1), frame (11) are close to drain (3) department with be equipped with the sealed stagnant water board of falling U-shaped (15) between the wall of a well of cutting dirty well (1), frame (11) are formed by the equipment of a plurality of stand (16), a plurality of crossbeam (17), a plurality of bolt and a plurality of nut.

5. The hydraulic self-control flow-limiting sewage interception gate device according to claim 1, characterized in that: the transmission assembly (7) comprises a first vertical rod (18) fixedly connected with the floating box (6), a second vertical rod (19) fixedly connected with the gate (8), a first rack (20) and a second rack (21) which are respectively arranged on the first vertical rod (18) and the second vertical rod (19), a first gear (22) and a second gear (23) which are meshed with the first rack (20) and the second rack (21) and a transmission shaft (24) fixedly arranged between the first gear (22) and the second gear (23), wherein the gate (8) and the floating box (6) are arranged on different sides of the transmission shaft (24).

6. The hydraulic self-control flow-limiting sewage interception gate device according to claim 5, wherein: first montant (18) run through the top of flotation tank (6) and with the inner wall of flotation tank (6) bottom is connected, second montant (19) through mount pad (25) with gate (8) fixed connection, a plurality of mount pad (25) are located on the inside wall of gate (8).

7. The hydraulic self-control flow-limiting sewage interception gate device according to claim 5, wherein: the transmission component (7) is provided with two guiding and limiting components (26) which are respectively matched with the first vertical rod (18) and the second vertical rod (19), the guiding and limiting assembly (26) comprises a mounting sleeve (27), a bearing sleeve (28) fixedly connected with the mounting sleeve (27) and a plurality of first rollers (30) which are all mounted on the mounting sleeve (27) in a matching manner, the corresponding first rack (20) or the second rack (21) and the plurality of first rollers (30) are distributed around the surface of the corresponding first vertical rod (18) or the second vertical rod (19), and the first roller (30) is in contact with the corresponding first vertical bar (18) or second vertical bar (19), the bearing sleeve (28) is movably connected with the transmission shaft (24) through a bearing (29) which is installed on the transmission shaft (24) in a matching mode.

8. The hydraulic self-control flow-limiting sewage interception gate device according to claim 7, wherein: and retaining rings (31) matched with the transmission shaft (24) are arranged on two sides of the bearing (29), the first gear (22) and the second gear (23).

9. The hydraulic self-control flow-limiting sewage interception gate device according to claim 1, characterized in that: all be equipped with gate groove (32) on the both sides of gate (8), gate (8) sliding fit is in gate groove (32), two gate groove (32) have breakwater (33) along upwards extending, be equipped with top sealing plate and side sealing plate on gate (8).

10. The hydraulic self-control flow-limiting sewage interception gate device according to claim 5, wherein: the limiting sleeve (9) comprises a base (34) and a plurality of second rollers (35) which are mounted on the base (34) in an adaptive mode, the plurality of second rollers (35) are distributed around the surface of the first vertical rod (18), and the plurality of second rollers (35) are all in contact with the first vertical rod (18).

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