CN110409602B

CN110409602B - Civil air defense underground drainage system

Info

Publication number: CN110409602B
Application number: CN201910664958.3A
Authority: CN
Inventors: 郑亦撑; 林翠洁
Original assignee: Guangdong Hongjun Construction Engineering Co ltd
Current assignee: Guangdong Hongjun Construction Engineering Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2021-02-26
Anticipated expiration: 2039-07-23
Also published as: CN110409602A

Abstract

The invention relates to the technical field of civil air defense engineering, in particular to a civil air defense underground drainage system, which has the technical scheme that: the sewage drainage device comprises a water collection pit, a sealing plate and an installation frame, wherein the water collection pit is arranged on the ground; circumference is equipped with the wash port of a plurality of large aperture and the inlet opening of little aperture on the shrouding, rotates on the sump pit and is connected with the regulating plate, and the below of shrouding is located to the regulating plate corresponding level, is equipped with the hole of permeating water corresponding with the wash port on the regulating plate, is equipped with on the mounting bracket to be used for driving regulating plate pivoted actuating mechanism, is equipped with filtering component on the wash port, still is including locating the locking piece that is used for fixed filtering component on the shrouding. The system has the advantages that when the local area is excessively flooded, sewage is accelerated to enter the water collecting pit, the water discharging hole is not easy to block, malodorous gas in the water collecting pit is not easy to discharge and diffuse to the civil air defense basement, and the surrounding environment of the civil air defense basement is protected.

Description

Civil air defense underground drainage system

Technical Field

The invention relates to the technical field of civil air defense engineering, in particular to a civil air defense underground drainage system.

Background

In civil buildings, the combined structural design of underground garages and civil air defense peacetime and war is frequently encountered, namely, the underground one-storey is used as a garage at ordinary times, and the underground two-storey is used as civil air defense at wartime. The design of water supply and drainage in the underground two layers is crucial, and a water collecting pit is usually arranged in the underground two layers.

In the drainage structure of the civil air defense basement in the prior art, a sealing plate is usually arranged at the top of a water collecting pit, a plurality of drainage holes are formed in the sealing plate, a sewage pump is arranged at the bottom of the water collecting pit and communicated with a drainage pipe extending out of the water collecting pit, and water on the ground of the civil air defense basement can be drained into the water collecting pit through the drainage holes in time; however, if the aperture of the drainage hole is small, when there is a lot of sewage on the ground, the water collecting pit cannot collect the water on the ground in time, and if the aperture of the drainage hole is large, although the sewage can be discharged into the water collecting pit in time, the sewage in the water collecting pit generates a lot of foul gas, which is easily emitted into the civil air defense basement from the drainage hole, seriously affecting the environment of the civil air defense basement, and when there is a lot of sewage, a lot of impurities are often mixed, which easily causes the blockage of the drainage hole, so that improvement is needed.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a civil air defense underground drainage system, which has the advantages of speeding up the sewage entering the water collection pit and preventing the water discharge hole from being blocked easily when the water in the local area is too much, and simultaneously preventing the foul gas in the water collection pit from being discharged and diffused to the civil air defense basement easily, and protecting the surrounding environment of the civil air defense basement.

The technical purpose of the invention is realized by the following technical scheme: a civil air defense underground drainage system comprises a water collecting pit arranged on the ground, a sealing plate arranged at the upper end of the water collecting pit and a mounting frame positioned on one side of the sealing plate, wherein a sewage pump is arranged at the bottom of the water collecting pit and communicated with a drainage pipe extending to the upper end of the sealing plate; the device comprises a sealing plate and is characterized in that a plurality of large-aperture drain holes and small-aperture water inlet holes are circumferentially formed in the sealing plate, an adjusting plate is rotatably connected to the water collecting pit, water permeable holes corresponding to the drain holes are formed in the adjusting plate, an adjusting mechanism used for driving the adjusting plate to rotate is arranged on the mounting frame, a filtering component is arranged on the drain holes, and the device further comprises a locking piece arranged on the sealing plate and used for fixing the filtering component.

By adopting the technical scheme, when the basement has less water on the ground, at the moment, the water inlet hole with the small aperture on the sealing plate is aligned with the water permeable hole on the adjusting plate, the water on the ground can be normally discharged into the water collecting pit, and the malodorous gas generated by the sewage in the water collecting pit is not easy to diffuse to the civil air defense basement due to the small aperture of the water inlet hole, so that the surrounding environment of the civil air defense basement is protected; when the basement has gathered more water, adjustment mechanism drive regulating plate rotates and moves, it is relative with the wash port of the large aperture on the shrouding to get the hole of permeating water on the regulating plate, thereby speed in the sewage gets into the sump has been accelerated, be convenient for to the emission of the sewage in the basement, convenient and fast, and simultaneously, the condition that large granule debris got into the wash port and caused the wash port jam can be reduced in the opposition to the filter assembly, and the closure piece carries out the closure to the filter assembly fixed, reduce the condition emergence that the in-process filter assembly of draining breaks away from the wash port.

Preferably, the adjusting plate is a light stainless steel plate.

Through adopting above-mentioned technical scheme, the setting of stainless steel has slowed down the regulating plate and has corroded or damaged under the impact of sewage, has prolonged the life of regulating plate.

Preferably, the filtering assembly comprises a filtering cover arranged in the drainage hole, a sliding groove is arranged on the side wall of the drainage hole along the vertical direction, and a sliding block in sliding fit with the sliding groove is arranged on the side wall of the filtering cover; the locking piece comprises an abutting block which is rotatably connected to the ground, and when the filter cover is accommodated in the drainage hole, the abutting block can rotate to abut against the top surface of the sliding block.

Through adopting above-mentioned technical scheme, the setting up of filter mantle reduces the condition that large granule debris got into the wash port and cause the wash port jam, and the butt piece rotates and supports to fix the filter mantle in the top surface of filter mantle, reduces drainage in-process filter mantle and breaks away from the wash port.

Preferably, adjustment mechanism includes the action wheel, follows the driving wheel, connects in the action wheel and follows the belt between the driving wheel and drive action wheel pivoted motor, the top surface central point department of putting of regulating plate is provided with the pivot along vertical direction is fixed, it cup joints in the pivot from the driving wheel, the action wheel cup joint in on the output shaft of motor.

Through adopting above-mentioned technical scheme, when needs make the regulating plate rotate, motor drive action wheel rotates, through the convenient and fast realization pivot rotation of belt pulley structure, and then the regulating plate takes place to rotate.

Preferably, a liquid level sensor and a buzzer are arranged on the rotating shaft, and the liquid level sensor is electrically connected with the motor.

Through adopting above-mentioned technical scheme, the operator sets for corresponding water level value, and when the water level of basement rose and reachd the water level value of setting for, level sensor trigger motor started, and then made the regulating plate rotate, and then the wash port aligns and then in time drains water with the hole of permeating water, avoids the condition of basement overflow, and bee calling organ can in time buzz in order to indicate personnel.

Preferably, a protective cover used for covering the adjusting mechanism is arranged on the mounting frame.

Through adopting above-mentioned technical scheme, setting up of protection casing has played fine guard action to adjustment mechanism, reduces the condition of external dust adhesion at adjustment mechanism.

Preferably, the mounting bracket is provided with the spout from the direction that the driving wheel is close to or keeps away from the driving wheel, be provided with on the mounting bracket and be used for adjusting the control mechanism of belt elasticity, control mechanism slides including sliding to connect in the length direction along the spout and connects in the mount pad of spout, rotate along spout length direction and bear the lead screw in the spout cell wall, driving wheel bearing connects in the top of mount pad, lead screw threaded connection just runs through the both sides wall that the mount pad is relative in the mount pad, the one end of lead screw extends to outside the protection casing.

Through adopting above-mentioned technical scheme, rotate the lead screw, the lead screw rotates the drive mount pad and slides convenient and fast's regulation of belt elasticity along spout length direction, utilizes the threaded connection cooperation of lead screw and supporting shoe to have the function of auto-lock simultaneously to convenient and fast's realization the location of mount pad.

Preferably, one side of protection casing is the opening setting, it has the apron that is used for the lid to close the opening to articulate on the protection casing, be provided with the fixed part between apron and the protection casing.

Through adopting above-mentioned technical scheme, the open-ended sets up and makes things convenient for the staff in time to overhaul adjustment mechanism, and the fixed part can realize the fixed between apron and the protection casing.

Preferably, the lateral wall of sump pit is provided with the spacing groove, the lateral wall of regulating plate fixed be provided with the spacing groove complex stopper that slides, the spacing inslot is provided with the response module that is used for responding to stopper sliding position and is used for controlling the controller that the motor is just reversing, the response module is connected with the signal input part electricity of controller, motor and level sensor all are connected with the signal output part electricity of controller.

By adopting the technical scheme, when the water level of the basement rises to reach the set water level value, the liquid level sensor triggers the motor to start positive rotation, and the limiting block slides positively along the length direction of the limiting groove; when the sliding block slides forwards to the sliding end point, the limiting block is sensed by the sensing module, the sensing module sends a forward sliding end point signal to the controller, the controller stops the motor after receiving the forward sliding end point signal, and the water discharging hole is aligned with the water permeable hole at the moment, so that the water discharging efficiency is accelerated; when the water level of the basement drops to the set water level value, the liquid level sensor triggers the motor to start to rotate reversely, and the limiting block slides reversely along the length direction of the limiting groove; when the limiting block reversely slides to the sliding terminal point, the limiting block is sensed by the sensing module, the sensing module sends a reverse sliding terminal point signal to the controller, the controller stops working after receiving the reverse sliding terminal point signal, and the water inlet hole can be aligned with the water permeable hole at the moment.

Preferably, the induction module comprises a first limit travel switch and a second limit travel switch which are correspondingly arranged on two groove walls of the limit groove respectively, the first limit travel switch and the second limit travel switch are respectively matched with the limit block in an abutting mode, and the first limit travel switch and the second limit travel switch are respectively electrically connected with the controller.

By adopting the technical scheme, when the limiting block slides forwards to the sliding end point, the limiting block is abutted against the first limiting travel switch, and the first limiting travel switch sends a forward sliding end point signal to the controller; when the limiting block reversely slides to the sliding end point, the limiting block is abutted to the second limiting travel switch, and the second limiting travel switch sends a forward sliding end point signal to the controller.

In conclusion, the invention has the following beneficial effects:

1. when the basement has less water on the ground, at the moment, the water inlet hole with the small aperture on the sealing plate is aligned with the water permeable hole on the adjusting plate, the water on the ground can be normally discharged into the water collecting pit, and the malodorous gas generated by the sewage in the water collecting pit is not easy to diffuse into the civil air defense basement due to the small aperture of the water inlet hole, so that the surrounding environment of the civil air defense basement is protected;

2. when the basement accumulates more water, the adjusting mechanism drives the adjusting plate to rotate and move, the water permeable hole in the adjusting plate is opposite to the large-aperture drain hole in the sealing plate, so that the speed of sewage entering the water collecting pit is increased, the sewage in the basement is conveniently discharged, the operation is convenient and rapid, meanwhile, the filter assembly can be oppositely arranged, the situation that the drain hole is blocked due to the fact that large-particle impurities enter the drain hole is reduced, the filter assembly is locked and fixed by the locking piece, and the situation that the filter assembly is separated from the drain hole in the drainage process is reduced;

3. the screw rod is rotated, the screw rod rotates to drive the mounting seat to slide along the length direction of the sliding groove, the tightness of the belt is conveniently and quickly adjusted, and meanwhile, the screw rod is matched with the supporting block through threads to achieve a self-locking function, so that the mounting seat is conveniently and quickly positioned.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of an assembly of an adjustment plate, a sealing plate and a sump after the sump is cut open according to an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of an embodiment of the present invention;

FIG. 5 is an enlarged view of portion B of FIG. 4;

fig. 6 is an enlarged view of a portion C in fig. 4.

In the figure: 1. a sump; 2. closing the plate; 3. a mounting frame; 4. a sewage pump; 5. a drain pipe; 6. a drain hole; 7. a water inlet hole; 8. an adjusting plate; 9. water permeable holes; 10. a rotating shaft; 11. a driving wheel; 12. a driven wheel; 13. a belt; 14. a motor; 15. a protective cover; 16. a chute; 17. a mounting seat; 18. a screw rod; 19. a turntable; 20. a cover plate; 21. an observation window; 22. hooking; 23. a hasp; 24. a limiting groove; 25. a limiting block; 26. a first limit travel switch; 27. a second limit travel switch; 28. a buffer spring; 29. a filter housing; 30. a sliding groove; 31. a slider; 32. a butting block; 33. and a roller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a people's air defense underground drainage system, refers to figure 1, is discoid shrouding 2 and fixed mounting 3 on ground including sump pit 1, the fixed mounting that is the rectangle form 1 upper end at sump pit, and shrouding 2 is the level setting for seal sump pit 1, and mounting bracket 3 is located one side of shrouding 2.

Referring to fig. 1 and 3, the sealing plate 2 is circumferentially provided with a plurality of rows of drain holes 6 and water inlet holes 7 penetrating the upper and lower surfaces of the sealing plate 2, the drain holes 6 are large-diameter holes, the water inlet holes 7 are small-diameter holes, and the drain holes 6 and the water inlet holes 7 are sequentially arranged. Simultaneously, dredge pump 4 is installed to sump pit 1 bottom, and dredge pump 4 intercommunication has the drain pipe 5 that extends to 2 upper ends of shrouding, has catchmented a certain amount of sewage in sump pit 1 after, makes sewage can in time follow drain pipe 5 discharge sump pit 1 through dredge pump 4's effect.

Referring to fig. 1 and 3, the below level of shrouding 2 is provided with the discoid regulating plate 8 corresponding with shrouding 2, and regulating plate 8 is light stainless steel board, and regulating plate 8 rotates and bears on sump 1, is provided with the hole 9 of permeating water corresponding with wash port 6 on the regulating plate 8, and the hole 9 of just permeating water runs through the upper and lower surface of regulating plate 8. The mounting frame 3 is provided with an adjusting mechanism for driving the adjusting plate 8 to rotate, the drain hole 6 is provided with a filtering component, and the mounting frame further comprises a locking piece which is arranged on the sealing plate 2 and used for fixing the filtering component.

When the basement has less water on the ground, at the moment, the water inlet hole 7 with the small aperture on the sealing plate 2 is aligned with the water permeable hole 9 on the adjusting plate 8, the water on the ground can be normally discharged into the water collecting pit 1, and the malodorous gas generated by the sewage in the water collecting pit 1 is not easy to diffuse to the civil air defense basement due to the small aperture of the water inlet hole 7, so that the surrounding environment of the civil air defense basement is protected; when the basement has gathered more water, adjustment mechanism drive regulating plate 8 rotates and moves, it is relative with the wash port 6 of the large aperture on the shrouding 2 to get the hole 9 of permeating water on the regulating plate 8, thereby the speed that sewage got into in the sump 1 has been accelerated, be convenient for to the discharge of the sewage in the basement, convenient and fast, and simultaneously, filtering component can the opposition reduce the condition that large granule debris got into wash port 6 and caused wash port 6 to block up, and the closure piece carries out the closure to filtering component fixed, the condition that filtering component breaks away from wash port 6 takes place among the reduction drainage process.

Referring to fig. 4 and 5, specifically, the adjusting mechanism includes a driving wheel 11, a driven wheel 12, a belt 13 connected between the driving wheel 11 and the driven wheel 12, and a motor 14 driving the driving wheel 11 to rotate, a rotating shaft 10 is fixedly arranged at a center position of a top surface of the adjusting plate 8 along a vertical direction, the driven wheel 12 is sleeved on the rotating shaft 10, and the driving wheel 11 is sleeved on an output shaft of the motor 14. When the adjusting plate 8 needs to rotate, the motor 14 drives the driving wheel 11 to rotate, the rotation of the rotating shaft 10 is conveniently and quickly realized through the belt 13 wheel structure, and then the adjusting plate 8 rotates.

Referring back to fig. 1, a protective cover 15 for covering the adjusting mechanism is arranged on the mounting frame 3, one side of the protective cover 15 is open, a cover plate 20 for covering the opening is hinged on the protective cover 15, and a fixing part is arranged between the cover plate 20 and the protective cover 15. The open-ended sets up and makes things convenient for the staff in time to overhaul adjustment mechanism, and the fixed part can realize the fixed between apron 20 and protection casing 15.

Referring to fig. 1 and 2, the fixing portion includes a hook 22 fixedly mounted on the cover plate 20 and a buckle 23 fixedly mounted on the protective cover 15, and the hook 22 and the buckle 23 can be engaged with each other. In addition, the cover plate 20 is provided with an observation window 21, so that a worker can observe the inside of the protection cover 15 through the observation window 21.

Referring to fig. 4 and 5, a sliding groove 16 is formed in the top of the mounting frame 3 in a direction in which the driving wheel 11 is close to or away from the driven wheel 12, a control mechanism for adjusting the tightness of the belt 13 is arranged on the mounting frame 3, the control mechanism comprises a mounting seat 17 connected to the sliding groove 16 in a sliding manner along the length direction of the sliding groove 16, a lead screw 18 borne on the wall of the sliding groove 16 in a rotating manner along the length direction of the sliding groove 16, the driving wheel 11 is connected to the top of the mounting seat 17 in a bearing manner, the lead screw 18 is connected to the mounting seat 17 in a threaded manner and penetrates through two opposite side walls of the mounting seat 17, one end of the lead screw 18 extends out. The staff rotates lead screw 18, and lead screw 18 rotates the convenient and fast regulation that has realized belt 13 elasticity that drives mount pad 17 and slides along 16 length directions of spout, utilizes the threaded connection cooperation of lead screw 18 and supporting shoe to have the function of auto-lock simultaneously to convenient and fast's realization mount pad 17 location.

In addition, a plurality of rollers 33 are embedded at the bottom of the sliding groove 16 along the length direction of the sliding groove 16, and the installation seat 17 and the sliding rotation of the sliding groove 16 are changed into rolling by the arrangement of the rollers 33, so that the installation seat 17 can slide more smoothly.

Referring back to fig. 3, the rotating shaft 10 is provided with a liquid level sensor and a buzzer, and the liquid level sensor is electrically connected with the motor 14. The lateral wall of sump pit 1 is provided with one section curved spacing groove 24, and the lateral wall of regulating plate 8 is fixed to be provided with and slides complex stopper 25 with spacing groove 24, is provided with the response module that is used for responding to stopper 25 sliding position and is used for the controller that control motor 14 is just reversing in the spacing groove 24, and the response module is connected with the signal input part electricity of controller, and motor 14 and level sensor all are connected with the signal output part electricity of controller.

When the water level of the basement rises to reach the set water level value, the liquid level sensor triggers the motor 14 to start to rotate forwards, and the limiting block 25 slides forwards along the length direction of the limiting groove 24; when the limiting block 25 slides forwards to the sliding end point, the limiting block 25 is sensed by the sensing module, the sensing module sends a forward sliding end point signal to the controller, the controller stops the motor 14 after receiving the forward sliding end point signal, and the water drainage hole 6 is aligned with the water permeable hole 9 at the moment, so that the drainage efficiency is accelerated; when the water level of the basement drops to the set water level value, the liquid level sensor triggers the motor 14 to start to rotate reversely, and the limiting block 25 slides reversely along the length direction of the limiting groove 24; when the limiting block 25 slides reversely to the sliding end point, the limiting block 25 is sensed by the sensing module, the sensing module sends a reverse sliding end point signal to the controller, the controller receives the reverse sliding end point signal and then enables the motor 14 to stop working, and at the moment, the water inlet hole 7 can be aligned to the water permeable hole 9.

Specifically, the induction module includes a first limit travel switch 26 and a second limit travel switch 27 which are respectively correspondingly arranged on two groove walls of the limit groove 24, the first limit travel switch 26 and the second limit travel switch 27 are respectively in butt joint with the limit block 25, and the first limit travel switch 26 and the second limit travel switch 27 are respectively electrically connected with the controller. When the limiting block 25 slides forwards to the sliding end point, the limiting block 25 is abutted against the first limiting travel switch 26, and the first limiting travel switch 26 sends a forward sliding end point signal to the controller; when the limiting block 25 slides reversely to the sliding end point, the limiting block 25 is abutted to the second limiting travel switch 27, and the second limiting travel switch 27 sends a forward sliding end point signal to the controller.

In addition, a buffer spring 28 is fixedly connected between the limit groove 24 and the first limit travel switch 26 and the second limit travel switch 27, and the first limit travel switch 26 and the second limit travel switch 27 are respectively supported on the groove wall of the limit groove 24 through the buffer spring 28. When the limit block 25 moves to abut against the first limit travel switch 26 or the second limit travel switch 27, the buffer spring 28 can buffer the impact force of the slide block 31 on the first limit travel switch 26 or the second limit travel switch 27, so that the first limit travel switch 26 and the second limit travel switch 27 are not easily damaged.

Referring to fig. 4 and 6, specifically, the filter assembly includes a filter cover 29 disposed in the drain hole 6, a sliding groove 30 is disposed on a side wall of the drain hole 6 along a vertical direction, and a sliding block 31 slidably engaged with the sliding groove 30 is disposed on a side wall of the filter cover 29; the locking element comprises an abutting block 32 which is rotatably connected with the ground, and when the filter cover 29 is accommodated in the drain hole 6, the abutting block 32 can be rotatably abutted against the top surface of the sliding block 31. The arrangement of the filter cover 29 reduces the situation that the drain hole 6 is blocked due to the fact that large-particle impurities enter the drain hole 6, and the abutting block 32 rotates to abut against the top surface of the filter cover 29 to fix the filter cover 29, so that the filter cover is prevented from being separated from the drain hole 6 in the drainage process. In addition, the surfaces of the sliding block 31 and the abutting block 32, which abut against each other, are fixedly provided with magnets which attract each other, and the abutting block 32 can more stably abut against the top surface of the filter cover 29 by using the magnetic action of the magnets.

The overall working process is as follows: when the water level of the civil air defense basement rises and touches the buzzer, the buzzer buzzes and gives an alarm, meanwhile, the liquid level sensor triggers the motor 14 to start forward rotation, the adjusting plate 8 rotates, and the limiting block 25 slides forward along the length direction of the limiting groove 24; when the limiting block 25 slides forwards to the sliding end point, the limiting block 25 is sensed by the sensing module, the sensing module sends a forward sliding end point signal to the controller, the controller stops the motor 14 after receiving the forward sliding end point signal, and the water drainage hole 6 is aligned with the water permeable hole 9 at the moment, so that the drainage efficiency is accelerated; when the water level of the basement drops to the set water level value, the liquid level sensor triggers the motor 14 to start to rotate reversely, the adjusting plate 8 rotates reversely, and the limiting block 25 slides reversely along the length direction of the limiting groove 24; when the limiting block 25 slides reversely to the sliding end point, the limiting block 25 is sensed by the sensing module, the sensing module sends a reverse sliding end point signal to the controller, the controller receives the reverse sliding end point signal and then enables the motor 14 to stop working, and at the moment, the water inlet hole 7 can be aligned to the water permeable hole 9.

The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims.

Claims

1. The utility model provides a people's air defense underground drainage system which characterized by: the sewage drainage device comprises a water collection pit (1) arranged on the ground, a sealing plate (2) arranged at the upper end of the water collection pit (1) and a mounting frame (3) positioned on one side of the sealing plate (2), wherein a sewage drainage pump (4) is arranged at the bottom of the water collection pit (1), and the sewage drainage pump (4) is communicated with a drainage pipe (5) extending to the upper end of the sealing plate (2); the water collecting device is characterized in that a plurality of large-aperture drain holes (6) and small-aperture water inlet holes (7) are circumferentially arranged on the sealing plate (2), an adjusting plate (8) is rotatably connected to the sump (1), the adjusting plate (8) is correspondingly and horizontally arranged below the sealing plate (2), water permeable holes (9) corresponding to the drain holes (6) are formed in the adjusting plate (8), an adjusting mechanism for driving the adjusting plate (8) to rotate is arranged on the mounting frame (3), a filtering component is arranged on the drain holes (6), and the water collecting device further comprises a locking piece which is arranged on the sealing plate (2) and used for fixing the filtering component; the adjusting mechanism comprises a driving wheel (11), a driven wheel (12), a belt (13) connected between the driving wheel (11) and the driven wheel (12) and a motor (14) driving the driving wheel (11) to rotate, a rotating shaft (10) is fixedly arranged at the center of the top surface of the adjusting plate (8) along the vertical direction, the driven wheel (12) is sleeved on the rotating shaft (10), and the driving wheel (11) is sleeved on an output shaft of the motor (14); a limiting groove (24) is formed in the side wall of the water collecting pit (1), a limiting block (25) in sliding fit with the limiting groove (24) is fixedly arranged on the side wall of the adjusting plate (8), an induction module used for inducing the sliding position of the limiting block (25) and a controller used for controlling the forward and reverse rotation of the motor (14) are arranged in the limiting groove (24), the induction module is electrically connected with a signal input end of the controller, a liquid level sensor and a buzzer are arranged on the rotating shaft (10), the liquid level sensor is electrically connected with the motor (14), and the motor (14) and the liquid level sensor are both electrically connected with a signal output end of the controller; the induction module comprises a first limit travel switch (26) and a second limit travel switch (27) which are correspondingly arranged on two groove walls of a limit groove (24), the first limit travel switch (26) and the second limit travel switch (27) are respectively in butt joint with the limit block (25) and are respectively matched with each other, and the first limit travel switch (26) and the second limit travel switch (27) are respectively electrically connected with the controller.

2. The civil air defense underground drainage system of claim 1, wherein: the adjusting plate (8) is a light stainless steel plate.

3. The civil air defense underground drainage system of claim 2, wherein: the filtering component comprises a filtering cover (29) arranged in the drain hole (6), a sliding groove (30) is arranged on the side wall of the drain hole (6) along the vertical direction, and a sliding block (31) in sliding fit with the sliding groove (30) is arranged on the side wall of the filtering cover (29); the locking piece comprises a butting block (32) which is rotatably connected to the ground, and when the filter cover (29) is accommodated in the drain hole (6), the butting block (32) can rotatably butt against the top surface of the sliding block (31).

4. The civil air defense underground drainage system of claim 3, wherein: and a protective cover (15) used for covering the adjusting mechanism is arranged on the mounting rack (3).

5. The civil air defense underground drainage system of claim 4, wherein: mounting bracket (3) are close to or keep away from direction from driving wheel (12) from driving wheel (11) and are provided with spout (16), be provided with on mounting bracket (3) and be used for adjusting the control mechanism of belt (13) elasticity, control mechanism includes that the length direction along spout (16) slides and connects mount pad (17) in spout (16), rotates lead screw (18) of bearing in spout (16) cell wall along spout (16) length direction, action wheel (11) bearing is connected in the top of mount pad (17), lead screw (18) threaded connection just runs through the both sides wall that mount pad (17) is relative in mount pad (17), the one end of lead screw (18) extends to outside protection casing (15).

6. The civil air defense underground drainage system of claim 5, wherein: one side of protection casing (15) is the opening setting, it has apron (20) that are used for the lid to close the open-ended to articulate on protection casing (15), be provided with the fixed part between apron (20) and protection casing (15).