CN206256525U - A kind of just rain automatic-diversion closure formula gutter inlet device - Google Patents

Abstract

The utility model relates to an automatic cut-off rainwater outlet device for initial rain, which comprises a well chamber and a well top cover. The first partition board and the second partition board are arranged at intervals in the well chamber, and the first partition board and the second partition board A partition partitions the well from one side to the other into a main well, a secondary well and a discharge well. The utility model provides an automatic cut-off gully device for initial rain without additional electric start-stop and control equipment, which realizes the effective automatic cut-off of the initial rainwater, and sends it to the sewage treatment plant for treatment through the urban sewage pipeline system , so as to reduce the adverse impact of the initial rain on the downstream rainwater receiving water environment, and at the same time reduce the possibility of sedimentation of muck and suspended matter in the urban rainwater pipeline system, and reduce the maintenance workload of the urban rainwater pipeline system.

Description

An automatic intercepting gully device for early rain

technical field

The utility model relates to the technical field of municipal drainage facilities, in particular to an automatic intercepting gully device for early rain.

Background technique

The traditional urban rainwater pipeline system collects rainwater from the road through the rainwater outlet and then flows it into the main rainwater pipe or main pipe, and finally discharges it into the downstream receiving water body. Therefore, the rainwater outlet is the beginning and the most important part of the entire urban rainwater pipeline system. For facilities that collect rainwater from road surfaces, the quality of the collected road surface rainwater will directly affect the operation of the entire urban rainwater pipeline system. The initial rainwater of each rainfall (abbreviation: initial rain) will carry a large amount of dust in the air and dissolve various polluting gases in the air during the process of falling to the ground in the air, and the rainwater will flow into the rainwater outlet after falling to the ground During the process, the suspended solids and slag on the ground will be taken away. Therefore, the primary rainwater generally contains a large amount of pollutants and suspended solids. Since the traditional gullies do not have any primary rain interception function, that is, for the initial rain The incoming water in the whole process of rainfall is collected and transported to the urban rainwater pipeline system without interception. However, actual engineering cases show that the initial rain will not only pollute the downstream of the urban rainwater pipeline system because of its high content of pollutants and suspended solids. At the same time, it will also lead to the silting and blockage of the urban rainwater pipeline system. In order to reduce the adverse impact on the water environment of the receiving water body and reduce the maintenance workload of the urban rainwater pipeline system, it is necessary to start from the beginning of the urban rainwater pipeline system - rainwater The mouth intercepts the first rain.

Utility model content

The technical problem to be solved by the utility model is to provide an automatic intercepting gully device for early rain in view of the above-mentioned deficiencies in the prior art.

The technical solution of the utility model to solve the above-mentioned technical problems is as follows: an automatic intercepting rainwater outlet device for early rain, including a well chamber and a well top cover, a first partition and a second partition are arranged in the well chamber, and the The first partition and the second partition divide the well from one side to the other into a main well, an auxiliary well and a discharge well.

The main well chamber is divided into an outer cavity and an inner cavity located inside the outer cavity by a flashboard, and an inner cavity is provided on the well roof corresponding to the inner cavity. A grid well cover, an outer grid well cover is provided on the top cover corresponding to the outer cavity, and a rainwater pipeline connected with the external urban rainwater pipeline system is provided on the side wall of the inner cavity.

The first partition is provided with a first water hole, the auxiliary well is equipped with a cover mechanism to cover or open the first water hole, and the second partition is provided with a second hole. The water hole, the discharge well chamber is provided with a water-filling pipe and a self-filling and draining water bag whose upper end communicates with the outside, and a sewage pipeline connected with the urban sewage pipeline system is provided on the side wall of the discharge well chamber, and the self-filling and draining The water bag can move toward the second water hole to cover the second water hole, and at the same time, the road rainwater entering the self-inflating water bag from the water filling pipe is discharged downward.

The beneficial effects of the utility model are: the utility model is an automatic intercepting gully device for initial rain, without additional electric start-stop and control equipment, which realizes the effective automatic interception of the initial rain, and passes it through the urban sewage pipeline system Sent to the sewage treatment plant for treatment, thereby reducing the adverse impact of early rain on the environment of the downstream rainwater receiving water body, and at the same time reducing the possibility of sedimentation of slag and suspended matter in the urban rainwater pipeline system, and reducing the maintenance of the urban rainwater pipeline system workload.

On the basis of the above technical solution, the utility model can also be improved as follows:

Further: a detachable permeable slag-retaining net is provided under the outer grid manhole cover.

The beneficial effect of the above further scheme is: the permeable slag retaining net can intercept most of the slag and suspended matter carried in the initial rain, thereby performing preliminary filtration of the rainwater, and the detachable way can remove the slag after the rain. The permeable slag blocking net is taken out and the slag and suspended matter in it are cleaned, which is easy to operate and reduces the difficulty of maintenance of the urban rainwater pipeline system in the later stage.

Further: the void size on the outer mesh manhole cover is larger than the void size on the inner mesh manhole cover.

The beneficial effect of the above further scheme is that the first rain and the slag and suspended matter contained in it can firstly enter the outer cavity directly through the outer grid manhole cover through the above method, so as to prevent the first rain from exceeding the The outer grid manhole cover directly enters the inner cavity through the inner grid manhole cover and is discharged through the rainwater pipe, so that the targeted interception of the initial rain cannot be achieved.

Further: the cover plate mechanism includes a cover plate and a driving structure, the size of the cover plate is not smaller than the size of the first water hole, and the drive structure is connected with the cover plate and drives the cover plate close to Or away from the first water hole to close or open the first water hole.

The beneficial effect of the above further solution is: the above method can make the cover plate completely cover the first water hole when it is close to the first water hole, thereby closing the first water hole, that is, closing The water flow channel between the main well chamber and the auxiliary well chamber allows rainwater to enter the inner cavity from the inner grid manhole cover, and then drain out through the rainwater pipe. In this way, in the early stage of rainfall, the road surface rainwater containing a large amount of pollutants will be discharged through the sewage pipe, and in the later stage of rainfall, when the road surface rainwater is relatively clean, at this time, the first water opening is closed to allow the rainwater to pass through. The rainwater pipes are discharged outside, so that the rainwater at the initial stage of rainfall and at the later stage of rainfall can be collected and discharged separately.

Further: the drive structure includes a spring, a fixed pulley, a first traction rope, a second traction rope and a gravity ball; one end of the spring is connected to the side wall of the inner cavity, and the other end passes through the first passage The water hole is connected to the side of the cover plate close to the first water hole, the upper end of the first traction rope is connected to the lower surface of the well roof, the lower end is connected to the fixed pulley and the The fixed pulley is suspended in the auxiliary shaft chamber, one end of the second traction rope is connected to the side of the cover plate away from the first water hole, and the other end bypasses the fixed pulley and pulls the gravity ball hanging in the auxiliary well.

The beneficial effect of the above further solution is: through the above structure, when the water level in the auxiliary well chamber is relatively high, due to the difference between the buoyancy and gravity of the gravity ball, the spring drives the cover plate to move and approach the first Water hole, so as to realize closing the first water hole, when the water level is relatively low, due to the gravity of the gravity ball, the spring drives the cover plate away from the first water hole, so as to open the The first water hole.

Further: the self-filling and draining water bag includes an upper plate, a lower plate and an elastic cloth bag, the upper plate, the lower plate and the elastic cloth bag form a closed bag body, and the lower end of the water filling pipe communicates with the closed bag body, The elastic cloth bag is provided with a plurality of drain holes for draining the rainwater entering the elastic cloth bag; the upper plate is fixed between the two side walls of the discharge well chamber, and one end of the lower plate It is rotatably connected with the second partition, and the other end is connected with the end of the upper plate away from the second partition through the elastic cloth bag, and the lower plate can follow the flow of rainwater entering the closed bag. Gravity turns down to cover the second water hole.

The beneficial effect of the above further solution is that: in the early stage of rainfall, road rainwater enters the self-filling and draining bag through the water-filling pipe, so that the lower plate can move toward the wall along with the gravity of the rainwater entering the self-filling and draining bag. Turn down to cover the second water hole, so that after a period of rain, the second water hole is closed, thereby causing the first water hole to be closed in the follow-up process, so that after the initial rainfall When the road surface rainwater becomes relatively clean, it will directly enter the inner cavity, and then be discharged through the rainwater pipe, so as to effectively intercept the initial rain and reduce environmental pollution.

Further: the second water hole is located at the bottom of the second partition, and the second partition is provided with a rotating shaft at the upper edge of the second water hole, and one end of the lower plate Connected to the rotating shaft, and the lower plate can rotate with the rotating shaft, the distance between the two side walls of the discharge well, the height of the second water hole and the length of the lower plate equal.

The beneficial effect of the above further solution is: the above method can make the lower plate rotate downward under the gravity of the rainwater entering the self-filling and draining bag, so as to automatically close the second water hole without additional driving force.

Further: the elastic cloth bag is a flexible cloth with a built-in spring.

The beneficial effect of the above further scheme is: the self-filling and draining bag can be automatically filled and drained during and after the rain through the above method. The gravity of the rainwater makes the lower plate of the self-filling and draining bag automatically close the second water opening, thereby causing the closure of the first water opening. , so its contraction makes the lower plate of the self-filling and draining water bag automatically open the second water hole, thereby causing the opening of the first water hole, realizing automatic drainage, energy saving and environmental protection.

Further: the second water hole is in the shape of a gate.

Further: the inner cavity is arranged at the center of the outer cavity.

The beneficial effect of the above further solution is that: through the above method, the rainwater on the road surface can evenly enter the outer cavity from the outer grid manhole cover.

Description of drawings

Fig. 1 is a front view of a first rain automatic intercepting gully device of the present utility model;

Fig. 2 is a cross-sectional view of an automatic intercepting gully device of the utility model.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. The first partition, 2. The second partition, 3. The main well chamber, 4. The auxiliary well chamber, 5. The discharge well chamber, 6. The outer cavity, 7. The inner cavity, 8. The inner grid well cover , 9. Outer grid manhole cover, 10. Rainwater pipe, 11. The first water hole, 12. The second water hole, 13. Water filling pipe, 14. Self-filling water release bag, 15. Sewage pipe, 16. Permeable water Slag blocking net, 17, cover plate, 18, spring, 19, fixed pulley, 20, first traction rope, 21, second traction rope, 22, gravity ball, 23, upper plate, 24, lower plate, 25, rotating shaft , 26, elastic cloth bag.

detailed description

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figures 1 and 2, a first rain automatic intercepting gully device includes a well chamber and a well top cover, and a first partition 1 and a second partition 2 are arranged at intervals in the well, and the first partition A partition 1 and a second partition 2 divide the well from one side to the other into a main well 3 , an auxiliary well 4 and a discharge well 5 .

In the present embodiment, the well chamber is surrounded by five outer plates and the well top cover into a cuboid, and the inside is divided into three well chambers by vertical first partitions 1 and second partitions 2. The first partition 1 and the second partition 2 are placed inside the device and parallel to two of the opposite outer plates.

In the main well chamber 3, the main well chamber 3 is divided into an outer cavity 6 and an inner cavity 7 located inside the outer cavity 6 by a flashboard, and the well top cover is connected with the inner cavity 7 is provided with an inner grid well cover 8 at the position corresponding to the outer cavity 6, and an outer grid well cover 9 is provided at the position corresponding to the outer cavity 6 on the well top cover. The rainwater pipeline 10 connected with the urban rainwater pipeline system.

Wherein, the main well chamber 3 is surrounded by the outer plate and the first partition plate 1, and the inside is provided with front, rear, left and right four inserting plates, and the inner space of the main well chamber 3 is divided into an inner cavity 7 and The outer cavity 6 forms an inner and outer double-layer cavity structure, and the two cavities are completely separated and independent of each other by the inserting plate.

The first partition 1 is provided with a first water hole 11, and the auxiliary well chamber 4 is provided with a cover mechanism for covering or opening the first water hole 11. The second partition 2 There is a second water opening 12 on the top, and the discharge well chamber 5 is provided with a water filling pipe 13 and a self-filling and draining water bag 14 whose upper end communicates with the outside. The sewage pipeline 15 connected by the pipeline system, the self-filling and discharging water bag 14 can move towards the second water hole 12 to cover the second water hole 12, and at the same time, it will enter the water from the water filling pipe 13 The rainwater of self-inflating and venting water bag 14 is discharged. Most of the dregs and suspended matter carried in the initial rain can be intercepted by the permeable slag blocking net 16, so as to initially filter the rainwater, and the permeable slag blocking net 16 can be taken out after rain in a detachable manner and The slag and suspended solids in it are cleaned up, and the operation is simple, which reduces the difficulty of maintenance of the urban rainwater pipeline system in the later stage.

Preferably, the size of the voids on the outer grid manhole cover 9 is larger than the gap size on the inner grid manhole cover 8 . Through the above method, the initial rain and its contained slag and suspended matter can first enter the outer cavity 6 directly through the outer grid manhole cover 9, so as to avoid the initial rain beyond the outer grid manhole cover 9 as much as possible. And directly enter the inner cavity 7 through the inner grid manhole cover 8 and drain out through the rainwater pipe 10, so that the targeted interception of the initial rain cannot be achieved.

In this embodiment, the cover plate mechanism includes a cover plate 17 and a drive structure, the size of the cover plate 17 is not smaller than the size of the first water hole 11, and the drive structure is connected to the cover plate 17 And drive the cover plate 17 close to or away from the first water hole 11 to close or open the first water hole 11 . Through the above method, the cover plate 17 can completely cover the first water hole 11 when it is close to the first water hole 11, thereby closing the first water hole 11, that is, closing the main well The water flow channel between the chamber 3 and the auxiliary well chamber 4 allows road surface rainwater to enter the inner cavity 7 from the inner grid manhole cover 8 and then drain out through the rainwater pipe 10 . In this way, the road surface rainwater containing a large amount of pollutants can be discharged through the sewage pipe 15 at the beginning of the rainfall, and in the subsequent rainfall process, when the road surface rainwater is relatively clean, the first water opening 11 is closed at this time. , the rainwater can be discharged through the rainwater pipe 10, so as to separately collect the road surface rainwater at the initial stage of rainfall and at the later stage of rainfall.

Preferably, the drive structure includes a spring 18, a fixed pulley 19, a first traction rope 20, a second traction rope 21 and a gravity ball 22; one end of the spring 18 is connected to the side wall of the inner cavity 7, and the other One end passes through the first water hole 11 and is connected to the side of the cover plate 17 close to the first water hole 11, and the upper end of the first traction rope 20 is connected to the lower surface of the manhole roof , the lower end is connected with the fixed pulley 19 and the fixed pulley 19 is suspended in the auxiliary well chamber 4, and one end of the second traction rope 21 and the cover plate 17 are away from the first water hole 11 One side is connected, and the other end bypasses the fixed pulley 19 to suspend the gravity ball 22 in the auxiliary well chamber 4 . Through the above structure, when the water level in the auxiliary well chamber 4 is relatively high, due to the difference between the buoyancy and gravity of the gravity ball 22, the spring 18 drives the cover plate 17 to move and approach the first water hole. 11, so as to realize closing the first water hole 11, when the water level is relatively low, due to the gravity of the gravity ball 22, the spring 18 drives the cover plate 17 away from the first water hole 11, thereby realizing Open the first water hole 11.

In this embodiment, the self-filling and draining water bag 14 includes an upper plate 23, a lower plate 24 and an elastic cloth bag 26, the upper plate 23, the lower plate 24 and the elastic cloth bag 26 form a closed bag body, and the water filling tube The lower end of 13 communicates with the closed bag body, and the elastic cloth bag 26 is provided with a plurality of drain holes for discharging the rainwater entering the elastic cloth bag 26; the upper plate 23 is fixed on the discharge well Between the two side walls of the chamber 5, one end of the lower plate 24 is rotatably connected to the second partition 2, and the other end is away from the second partition 2 through the elastic cloth bag 26 and the upper plate 23. The lower plate 24 can rotate downwards to cover the second water hole 12 with the gravity of the rainwater entering the closed capsule. Through the self-inflating and draining water bag 14, at the initial stage of rainfall, road rainwater enters the closed bag body through the water filling pipe 13, so that the lower plate 24 can move downward with the gravity of the rainwater entering the closed bag body. Rotate to cover the second water hole 12, like this, after a period of rain, the second water hole 12 is closed, thereby causing the first water hole 11 to also be closed in the follow-up process. After the initial period, when the road surface rainwater becomes relatively clean, it will directly enter the inner cavity 7 and then be discharged through the rainwater pipe 10, so as to effectively intercept the initial rain and reduce environmental pollution.

Preferably, the second water hole 12 is located at the bottom of the second partition 2, and the second partition 2 is provided with a rotating shaft 25 at the upper edge of the second water hole 12, One end of the lower plate 24 is connected to the rotating shaft 25, and the lower plate 24 can rotate with the rotating shaft 25, the distance between the two side walls of the discharge well chamber 5, the second water passage The height of the hole 12 is equal to the length of the lower plate 24 . Through the above method, the lower plate 24 can be rotated downward by the gravity of the rainwater entering the self-inflating and draining water bag 14, so as to automatically close the second water hole 12 without additional driving force.

The first rain automatic cut-off gully device of the utility model automatically cuts the first rain, and the specific principle is as follows: when it starts to rain, the first rain flows from the road and sidewalk to the device, and first enters the device through the outer grid well cover 9, Most of the slag and suspended solids carried in the initial rain are intercepted by the permeable slag blocking net 16, and the initial rain after slag blocking enters the outer cavity 6, and the water level of the cavity continues to rise until it exceeds the main well chamber 3 and the auxiliary well chamber 4 The first water hole 11 of the first partition 1 between them enters the auxiliary well chamber 4, and then flows in from the second water hole 12 on the second partition 2 between the auxiliary well chamber 4 and the discharge well chamber 5. The discharge well chamber 5 is discharged into the urban sewage pipeline system through the sewage pipe 15 connected with the discharge well chamber 5, and finally enters the sewage treatment plant for treatment and discharges up to the standard.

At the same time, road surface rainwater enters the self-filling and discharging water bag 14 through the water-filling pipe 13 of the discharge well chamber 5, and the water-discharging small holes on the elastic cloth bag 26 in the self-filling and discharging water bag 14 continuously discharge water, but due to the self-filling and discharging The water filling capacity of the water bag 14 is greater than the water discharge capacity, and the gravity of the rainwater in the self-filling and draining water bag 14 causes the lower plate 24 to rotate around the rotating shaft 25, thereby driving the elastic cloth bag 26 to stretch, and finally the lower plate 24 of the self-filling and draining water bag 14 Completely close the second water hole 12 on the second partition 2, and the road surface rainwater entering the auxiliary well chamber 4 no longer enters the discharge well chamber 5. At this time, the initial rain has been completely intercepted by the sewage pipe 15 and discharged into urban sewage plumbing system without entering the city storm water system.

After that, the rainwater on the road continues to flow into the auxiliary well chamber 4 from the main well chamber 3, and the water level in the auxiliary well chamber 4 rises accordingly, making the gravity ball 22 in the auxiliary well chamber 4 float up, so that the spring 18 generates a restorative pulling force to drive the cover plate 17 gradually approached the main well chamber 3 and finally closed the first water hole 11. At this time, the road surface rainwater entering the main well chamber 3 no longer entered the auxiliary well chamber 4. As the rain continues, the outer cavity 6 in the main shaft chamber 3 is gradually filled with rainwater on the road surface, and the rainwater on the road surface no longer enters the cavity. Road rainwater enters the inner cavity 7 through the inner grid manhole cover 8, and flows into the urban rainwater pipeline system through the rainwater pipeline 10 communicated with the inner cavity 7.

The rainwater on the road in the later stage of rainfall will not only greatly reduce the pollution of the receiving water body downstream of the urban rainwater pipeline, but also will not cause siltation and blockage of the urban rainwater pipeline system. After the rain stops, the whole device no longer enters water, and the small holes for discharging water on the elastic cloth bag 26 of the self-filling and discharging water bag 14 are still continuously discharging water, during which the elastic cloth bag 26 on the self-filling and discharging water bag 14 Gradually shrink and drive the lower plate 24 of the self-filling and draining water bag 14 to rotate around the rotating shaft 25, so that the lower plate 24 gradually moves away from the second water hole 12, and the second water hole 12 is gradually opened, and the water in the auxiliary well chamber 4 It flows into the discharge well chamber 5 through the second water passage hole 12, and then is discharged into the urban sewage pipeline system through the sewage pipe 15. As the rainwater contained in the auxiliary well chamber 4 is drained away, its water level gradually drops, and the water level in the cover plate mechanism The buoyancy force received by the gravity ball 22 gradually decreases until it is 0. At this time, the gravity ball 22 drives the cover plate 17 through the action of gravity and then pulls the spring 18 so that the cover plate 17 is gradually far away from the first water hole 11, and the outer space of the main well chamber 3 The water in the cavity 6 is gradually removed until the water level is lower than the bottom of the hole through the first water hole 11, and now the drainage ends, and the whole device realizes the automatic closure of the first rain when it rains.

Preferably, the elastic cloth bag 26 is a flexible cloth with a built-in spring. Through the above method, the self-filling and draining water bag 14 can be automatically filled and drained at the initial stage of rainfall, and the second water hole 12 can be automatically closed when it is filled, thereby causing the first water hole 11 to be closed. , realize automatic drainage, energy saving and environmental protection.

Preferably, the second water hole 12 is door-shaped.

Preferably, the inner cavity 7 is arranged at the center of the outer cavity 6 . Through the above method, the rainwater on the road surface can be evenly entered into the outer cavity 6 from the outer grid well cover 9, so as to prevent the initial rain from entering the outer grid well cover 9 unevenly and entering the inner grid well cover 8 into the outer cavity 6. Described inner cavity 7, thereby can not have the effect of better initial rain interception.

The utility model provides an automatic cut-off gully device for initial rain without additional electric start-stop and control equipment, which realizes the effective automatic cut-off of rainwater at the initial stage of rainfall, and sends it to the sewage treatment plant for treatment through the urban sewage pipeline system , so as to reduce the adverse impact of initial rain on the downstream rainwater receiving water environment, and at the same time reduce the possibility of sedimentation and suspended solids in the urban rainwater pipeline system, and reduce the maintenance workload of the urban rainwater pipeline system.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. a kind of automatic shut-off type gully device of just rain, it is characterized in that: comprise well chamber and well top cover, described well chamber interval is provided with first dividing plate (1) and second dividing plate (2), and all The first partition (1) and the second partition (2) separate the well from one side to the other into a main well (3), an auxiliary well (4) and a discharge well (5) ; The main well chamber (3) is divided into an outer cavity (6) and an inner cavity (7) inside the outer cavity (6) by an inserting plate. An inner grid well cover (8) is provided on the well roof corresponding to the inner cavity (7), and an outer grid well cover is provided on the well roof corresponding to the outer cavity (6) (9), the side wall of the inner cavity (7) is provided with a rainwater pipeline (10) communicated with the external urban rainwater pipeline system; The first partition (1) is provided with a first water opening (11), and the auxiliary well chamber (4) is provided with a cover plate mechanism to cover or open the first water opening (11) , the second partition (2) is provided with a second water hole (12), and the discharge well chamber (5) is provided with a water filling pipe (13) whose upper end communicates with the outside and a self-filling and draining water bag ( 14), the side wall of the discharge well chamber (5) is provided with a sewage pipeline (15) communicated with the urban sewage pipeline system, and the self-filling and draining bag (14) can face the second water hole ( 12) Move to cover the second water hole (12), and at the same time drain the road surface rainwater entering the self-filling and draining water bag (14) from the water filling pipe (13). 2. according to claim 1, a kind of automatic interception type gully device for early rain, is characterized in that: described outer grid well cover (9) below is provided with detachable permeable slag retaining net (16). 3. according to claim 1, a kind of automatic interception type gully device for early rain, is characterized in that: the gap size on the outer grid well cover (9) is greater than the gap size on the inner grid well cover (8) . 4. according to the described a kind of early rain automatic intercepting type gully device of claim 1, it is characterized in that: described cover plate mechanism comprises cover plate (17) and driving structure, and the size of described cover plate (17) is not less than described The size of the first water hole (11), and the driving structure is connected with the cover plate (17) and drives the cover plate (17) close to or away from the first water hole (11), so as to Close or open the first water hole (11). 5. according to the described a kind of early rain automatic closure type gully device of claim 4, it is characterized in that: described driving structure comprises spring (18), fixed pulley (19), the first traction rope (20), the second traction Rope (21) and gravity ball (22); One end of the spring (18) is connected to the side wall of the inner cavity (7), and the other end passes through the first water hole (11) and is close to the first water hole (11) with the cover plate (17). One side of the water hole (11) is connected, the upper end of the first traction rope (20) is connected with the lower surface of the well roof, the lower end is connected with the fixed pulley (19) and the fixed pulley (19) ) is suspended in the auxiliary well chamber (4), one end of the second traction rope (21) is connected to the side of the cover plate (17) away from the first water hole (11), and the other end After bypassing the fixed pulley (19), the gravity ball (22) is suspended in the auxiliary well chamber (4). 6. according to claim 1, a kind of automatic shut-off type gully device for early rain, is characterized in that: described self-filling water bag (14) comprises upper plate (23), lower plate (24) and elastic cloth bag ( 26), the upper plate (23), the lower plate (24) and the elastic cloth bag (26) form a closed bag, the lower end of the water filling pipe (13) communicates with the closed bag, and the elastic cloth bag (26) is provided with a plurality of drain holes that will enter the rainwater of the elastic cloth bag (26); The upper plate (23) is fixed between the two side walls of the discharge well chamber (5), one end of the lower plate (24) is rotatably connected to the second partition (2), and the other end passes through the The elastic cloth bag (26) is connected with the end of the upper plate (23) away from the second partition (2), and the lower plate (24) can move toward the wall along with the gravity of the rainwater entering the closed bag Rotate down to cover the second water hole (12). 7. according to claim 6, a kind of automatic intercepting type gully device for early rain, is characterized in that: the second water opening (12) is positioned at the bottom of the second dividing plate (2), and the A rotating shaft (25) is arranged on the upper edge of the second water passage hole (12) on the second partition (2), and one end of the lower plate (24) is connected with the rotating shaft (25), and the The lower plate (24) can rotate with the rotating shaft (25), the distance between the two side walls of the discharge well (5), the height of the second water hole (12) and the lower plate The three lengths of (24) are equal. 8. A kind of early rain automatic intercepting type gully device according to claim 6, is characterized in that: described elastic cloth bag (26) is the flexible cloth of built-in spring. 9. A kind of early rain automatic interception type gully device according to claim 6, is characterized in that: the second water opening (12) is a gate shape. 10. The first rain automatic intercepting gully device according to any one of claims 1 to 9, characterized in that: the inner cavity (7) is arranged at the center of the outer cavity (6).