CN219996291U

CN219996291U - Urban underground pipe network water level monitoring and early warning device

Info

Publication number: CN219996291U
Application number: CN202321562285.9U
Authority: CN
Inventors: 谷春田
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-11-10
Anticipated expiration: 2033-06-19

Abstract

The utility model discloses a city underground pipe network water level monitoring and early warning device which comprises two L-shaped buckling seats fixedly connected to the inner wall of a city sewer and a water level monitoring and early warning device body movably sleeved on the two L-shaped buckling seats, wherein the water level monitoring and early warning device body comprises a lifting support component movably sleeved on the two L-shaped buckling seats, and the bottom end of the lifting support component is fixedly connected with a rectangular box with an opening at the bottom. According to the utility model, through the arrangement of a series of structures, the monitoring and early warning of the water level of the urban underground pipe network are realized, the filtering and shielding of floating garbage in water are realized by utilizing the stainless steel cylinder-shaped filter screen, the winding influence of the floating garbage on the hollow floating ball is prevented, the monitoring stability is improved, the floating garbage on the outer side of the stainless steel cylinder-shaped filter screen is conveniently and automatically stirred and cleaned, the blocking risk of the stainless steel cylinder-shaped filter screen is reduced, the water-through stability is improved, the monitoring effect is improved, the water level early warning height is conveniently adjusted according to the use requirement, and the use flexibility is improved.

Description

Urban underground pipe network water level monitoring and early warning device

Technical Field

The utility model relates to the technical field of water level monitoring, in particular to a water level monitoring and early warning device for an urban underground pipe network.

Background

With the acceleration of the urban process, the urban ground hardening rate is higher and higher, so that the water permeability of the urban lower cushion layer is weaker and weaker, on the other hand, the area of rivers and lakes in the city is reduced, the capacity of regulating precipitation is reduced, the scene of 'urban sea looking' often appears after the storm is passed, the parts of subways, underground garages, underpass-type overpasses and the like are often submerged by the storm, and huge losses are brought to the life and property safety of people, and the problems are mainly caused by the blockage of underground pipe networks and the failure of timely dredging; when the existing underground pipe network water level monitoring and early warning device is used, floating garbage can sometimes appear in an underground pipeline, and the floating garbage is easy to wind at the bottom of a floating ball, so that monitoring and early warning are inaccurate.

In this regard, publication number CN218381172U discloses a city underground pipe network water level monitoring and early warning device, which comprises a mounting plate, wherein one side of the mounting plate is provided with a movable plate, an air bag is fixed at the inner side of one end of the movable plate, a first rubber head is fixed at the outer side of one end of the movable plate, a first convex plate is fixed at the upper end of one side of the mounting plate, and a protective net cover is fixed at the edge of one side of the mounting plate; through being provided with the fly leaf on the mounting panel, the fly leaf keeps the height with the water level through the gasbag and reciprocates, is provided with two flange on the mounting panel row, and the touch switch on two flange cooperates with two rubber heads respectively for the device can be when the water level is too high or when being too low homoenergetic control external alarm device send out the police dispatch newspaper, has improved work efficiency, is provided with the filtration screen panel in the outside of mounting panel simultaneously, has played the effect of protection to the fly leaf, makes the removal of fly leaf not disturbed, has improved the device's working accuracy.

The utility model discloses a city underground pipe network water level monitoring early warning device through the filtration screen panel that sets up, realizes that the rubbish that floats to float in the water filters and shelters from, prevents that the rubbish that floats from causing the winding influence when detecting, but it still has some not enoughly:

1. during monitoring, although the floating garbage can be filtered and shielded by the filter screen, the floating garbage is easy to accumulate and cover and is blocked outside the filter screen, so that the water permeability into the filter screen is not ideal, the risk of blocking and preventing water from flowing is caused, and the monitoring effect is affected; 2. the lack of a structure for adjusting the height according to the early warning height makes the use flexibility not ideal; in view of this, we propose a city underground pipe network water level monitoring and early warning device for solve above-mentioned problem.

Disclosure of Invention

The utility model aims to provide a city underground pipe network water level monitoring and early warning device so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a city underground pipe network water level monitoring early warning device, includes two L shape knot seats of fixed connection on city sewer inner wall and the water level monitoring early warning device body of movable sleeve on two L shape knot seats, the water level monitoring early warning device body includes the lift supporting component of movable sleeve on two L shape knot seats, and the bottom fixedly connected with bottom of lift supporting component is the rectangle box that the opening set up, and the bottom fixedly connected with apron of rectangle box, and lift supporting component is used for according to the monitoring early warning height of city underground pipe network water level to rectangle box lift adjustment;

the bottom of the cover plate is fixedly connected with a round box with an opening at the top, a rotary pipe is installed between the inner wall of the bottom of the round box and the bottom of the cover plate in a sealing and rotating manner, the bottom end of the rotary pipe extends to the lower part of the round box and is fixedly connected with a stainless steel cylinder-shaped filter screen with a plugging structure at the bottom, the left side of the bottom of the round box is fixedly connected with an outer side slag removing component matched with the stainless steel cylinder-shaped filter screen, and the outer side slag removing component is used for stirring and cleaning impurities accumulated outside the stainless steel cylinder-shaped filter screen when the stainless steel cylinder-shaped filter screen rotates;

the upper part of the rectangular box is provided with a stainless steel cylinder-shaped filter screen, the upper part of the stainless steel cylinder-shaped filter screen is provided with a cover plate, the upper part of the stainless steel cylinder-shaped filter screen is provided with a stainless steel cylinder-shaped filter screen, the lower part of the stainless steel cylinder-shaped filter screen is provided with a stainless steel cylinder-shaped filter screen, and the stainless steel cylinder-shaped filter screen is provided with a stainless steel cylinder-shaped filter screen;

the rotary pipe is fixedly sleeved with a rotary driving assembly located in the round box, a driving motor fixedly connected with the rotary driving assembly is fixedly installed on the inner wall of the bottom of the round box, a time control switch electrically connected with the driving motor is fixedly installed on the inner wall of the left side of the rectangular box, and the rotary driving assembly is used for driving the rotary pipe to rotate when the driving motor is started, so that the stainless steel cylindrical filter screen is driven to rotate.

Preferably, the lifting support assembly comprises a balancing weight, two hanging holes which are respectively in movable contact with the outer sides of the corresponding L-shaped buckling seats are formed in the left side of the top of the balancing weight, a U-shaped handle is fixedly connected to the top of the balancing weight, an electric push rod is fixedly arranged at the bottom of the balancing weight, and the bottom end of the extending end of the electric push rod is fixedly connected with the top of the rectangular box; the balancing weight, hanging hole and electric putter cooperation that set up utilize hanging hole and the clamping of corresponding L shape knot seat, realize supporting the balancing weight, utilize electric putter can be as required the water level height of early warning to rectangle box lift adjustment.

Preferably, the outer slag removing component comprises a vertical rod fixedly connected to the left side of the bottom of the round box, the right side of the vertical rod is fixedly connected with a plurality of slag stirring rods, and the slag stirring rods are positioned on the left side of the stainless steel cylinder-shaped filter screen; the montant that sets up and dial sediment pole cooperation can drive its outside accumulational impurity and a plurality of sediment pole of dialling and bump and cut and rub when stainless steel cylinder shape filter screen rotates, realizes stirring the effect of scarfing cinder to stainless steel cylinder shape filter screen outside.

Preferably, the floating press contact assembly comprises an extrusion block arranged below the light touch alarm control switch, a vertical guide rod is fixedly connected to the bottom of the extrusion block, the bottom end of the vertical guide rod penetrates through the rotary pipe to extend into the stainless steel cylinder-shaped filter screen and is fixedly connected with a hollow floating ball, and a cover plate is sleeved on the vertical guide rod in a sliding manner; the extrusion block, the vertical guide rod and the hollow floating ball are matched, when the water level of the urban underground pipe network rises and enters the stainless steel cylinder-shaped filter screen through the sewer, the hollow floating ball floats upwards by water, the extrusion block is driven by the hollow floating ball to move upwards through the vertical guide rod, the extrusion block extrudes and touches the tact alarm control switch upwards, and the effect of automatically extruding and touching the tact alarm control switch when the water level rises to the early warning height is achieved.

Preferably, the rotary driving assembly comprises an outer gear ring fixedly sleeved on the rotary tube, a gear is meshed with the left side of the outer gear ring, the bottom of the gear is fixedly connected with the top end of an output shaft of the driving motor, and the gear and the outer gear ring are both positioned in the round box; the outer gear ring is matched with the gear, when the driving motor starts the driving gear to rotate, the gear drives the rotary pipe to rotate through the outer gear ring, and the rotary pipe is utilized to rotate to achieve the effect of driving the stainless steel cylinder-shaped filter screen to rotate.

Preferably, the touch alarm control switch is electrically connected with an external alarm, and the external alarm is controlled to be started for early warning by the fact that the touch alarm control switch is pressed and touched.

Preferably, a storage battery is fixedly arranged on the left inner wall of the rectangular box, and the time control switch, the driving motor and the electric push rod are electrically connected with the storage battery.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the urban underground pipe network water level monitoring and early warning device, through the cooperation of the light touch alarm control switch, the floating pressure touch assembly and the stainless steel cylinder-shaped filter screen, the floating mode can be utilized to trigger and alarm when the water level rises, so that the urban underground pipe network water level monitoring and early warning device is realized, floating garbage in water can be filtered and shielded outside the hollow floating ball by the stainless steel cylinder-shaped filter screen, the floating garbage is prevented from winding the hollow floating ball, and the monitoring stability is improved;

2. according to the urban underground pipe network water level monitoring and early warning device, through the cooperation of the arranged rotary driving assembly, the time control switch, the outside slag removal assembly and the driving motor, after the on-off time of the driving motor is controlled by the preset time control switch according to the cleaning interval requirement, floating garbage outside the stainless steel cylinder-shaped filter screen can be automatically and regularly stirred and cleaned, the blocking risk of the stainless steel cylinder-shaped filter screen is reduced, the water-through stability is improved, and the monitoring effect is improved;

3. the utility model provides a city underground pipe network water level monitoring early warning device through lifting support subassembly and the rectangle box that sets up, can the lifting adjustment dab alarm control switch's high position, realizes adjusting its touched position to this is convenient according to the nimble water level early warning height of adjusting of use needs.

According to the utility model, through the light touch alarm control switch and the floating press touch assembly, the water level monitoring and early warning of the urban underground pipe network are realized, the filtering and shielding of floating garbage in water are realized through the stainless steel cylinder-shaped filter screen, the winding influence of the floating garbage on the hollow floating ball is prevented, the monitoring stability is improved, the floating garbage on the outer side of the stainless steel cylinder-shaped filter screen is conveniently and automatically stirred and cleaned by combining the rotating driving assembly, the time control switch, the outer side slag removal assembly and the driving motor, the blocking risk of the stainless steel cylinder-shaped filter screen is reduced, the water stability is improved, the monitoring effect is improved, and the lifting support assembly is combined, so that the water level early warning height is conveniently adjusted according to the use requirement, and the use flexibility is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic perspective view of a water level monitoring and early warning device body and an L-shaped buckle base connecting piece according to the present utility model;

FIG. 3 is an enlarged cross-sectional view of portion A of FIG. 1 in accordance with the present utility model;

fig. 4 is an enlarged schematic view of the portion B in fig. 3 according to the present utility model.

In the figure: 1. an L-shaped buckle seat; 2. balancing weight; 3. an electric push rod; 4. a rectangular box; 5. touching the alarm control switch; 6. a round box; 7. a rotary pipe; 8. stainless steel cylinder filter screen; 9. a hollow floating ball; 10. a vertical guide rod; 11. extruding a block; 12. an outer ring gear; 13. a gear; 14. a driving motor; 15. a time-controlled switch; 16. a vertical rod; 17. and a slag stirring rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 4, the water level monitoring and early warning device for the urban underground pipe network provided by the embodiment comprises two L-shaped buckling seats 1 fixedly connected to the inner wall of the urban sewer and a water level monitoring and early warning device body movably sleeved on the two L-shaped buckling seats 1, wherein the water level monitoring and early warning device body comprises a lifting support component movably sleeved on the two L-shaped buckling seats 1, the bottom end of the lifting support component is fixedly connected with a rectangular box 4 with the bottom being provided with an opening, the bottom of the rectangular box 4 is fixedly connected with a cover plate, and the lifting support component is used for lifting and adjusting the rectangular box 4 according to the monitoring and early warning height of the water level of the urban underground pipe network; the bottom of the cover plate is fixedly connected with a round box 6 with an opening at the top, a rotary pipe 7 is installed between the inner wall of the bottom of the round box 6 and the bottom of the cover plate in a sealing and rotating manner, a first sealing bearing is fixedly connected to the bottom of the cover plate, a rotating hole is formed in the inner wall of the bottom of the round box 6, a second sealing bearing is fixedly sleeved in the rotating hole, the inner rings of the second sealing bearing and the first sealing bearing are fixedly sleeved with the outer side of the rotary pipe 7, the rotary pipe 7 is installed between the inner wall of the bottom of the round box 6 and the bottom of the cover plate in a sealing and rotating manner through the first sealing bearing and the second sealing bearing, the effect of sealing and rotating the rotary pipe 7 is achieved, the bottom end of the rotary pipe 7 extends to the lower side of the round box 6 and is fixedly connected with a stainless steel cylinder-shaped filter screen 8 with a sealing structure at the bottom, an outer side slag removing component matched with the stainless steel cylinder-shaped filter screen 8 is fixedly connected to the left side of the bottom of the round box 6, and the slag removing component is used for stirring and cleaning impurities accumulated outside the stainless steel cylinder-shaped filter screen 8 when rotating; the inner wall of the top of the rectangular box 4 is fixedly connected with a tact alarm control switch 5, a floating press-contact assembly positioned in the stainless steel cylinder-shaped filter screen 8 is matched and arranged below the tact alarm control switch 5, the cover plate is slidably sleeved on the floating press-contact assembly, and the floating press-contact assembly is used for being automatically lifted by buoyancy of water to squeeze and touch the tact alarm control switch 5; the rotary tube 7 is fixedly sleeved with a rotary driving assembly positioned in the round box 6, a driving motor 14 fixedly connected with the rotary driving assembly is fixedly installed on the inner wall of the bottom of the round box 6, a time control switch 15 electrically connected with the driving motor 14 is fixedly installed on the inner wall of the left side of the rectangular box 4, and the rotary driving assembly is used for driving the rotary tube 7 to rotate when the driving motor 14 is started, so that the stainless steel cylindrical filter screen 8 is driven to rotate.

Specifically, the lifting support assembly comprises a balancing weight 2, two hanging holes which are respectively in movable contact with the outer sides of the corresponding L-shaped buckling seats 1 are formed in the left side of the top of the balancing weight 2, a U-shaped handle is fixedly connected to the top of the balancing weight 2, an electric push rod 3 is fixedly installed at the bottom of the balancing weight 2, the bottom end of the extending end of the electric push rod 3 is fixedly connected with the top of the rectangular box 4, a storage battery is fixedly installed on the inner wall of the left side of the rectangular box 4, a time control switch 15, a driving motor 14 and the electric push rod 3 are electrically connected with the storage battery, and the set storage battery has the effect of supplying power to the time control switch 15, the driving motor 14 and the electric push rod 3; the balancing weight 2, hanging hole and electric putter 3 cooperation that set up utilize hanging hole and the clamping of corresponding L shape knot seat 1, realize supporting balancing weight 2, utilize electric putter 3 can be as required the water level height to rectangle box 4 lift adjustment of early warning.

Further, the outside slag removing assembly comprises a vertical rod 16 fixedly connected to the left side of the bottom of the round box 6, the right side of the vertical rod 16 is fixedly connected with a plurality of slag stirring rods 17, and the slag stirring rods 17 are positioned on the left side of the stainless steel cylinder-shaped filter screen 8; the vertical rod 16 and the slag stirring rod 17 are matched, and when the stainless steel cylinder-shaped filter screen 8 rotates, impurities accumulated outside the stainless steel cylinder-shaped filter screen can be driven to collide with the slag stirring rods 17, so that the effect of stirring slag removal outside the stainless steel cylinder-shaped filter screen 8 is achieved.

Further, the floating press-contact assembly comprises an extrusion block 11 arranged below the light-contact alarm control switch 5, the bottom of the extrusion block 11 is fixedly connected with a vertical guide rod 10, the bottom end of the vertical guide rod 10 penetrates through the rotary pipe 7 to extend into the stainless steel cylinder-shaped filter screen 8 and is fixedly connected with a hollow floating ball 9, a cover plate is slidably sleeved on the vertical guide rod 10, a vertical guide hole which is slidably sleeved with the outer side of the vertical guide rod 10 is formed in the top of the cover plate, and the cover plate is slidably sleeved on the vertical guide rod 10 through the vertical guide hole, so that the effect of vertically slidably guiding the vertical guide rod 10 is achieved; the extrusion block 11, the vertical guide rod 10 and the hollow floating ball 9 are matched, when the water level of the urban underground pipe network rises and enters the stainless steel cylinder-shaped filter screen 8 through a sewer, the hollow floating ball 9 floats upwards by water, the hollow floating ball 9 drives the extrusion block 11 to move upwards through the vertical guide rod 10, the extrusion block 11 extrudes and touches the light alarm control switch 5 upwards, the effect of automatically extruding and touching the light alarm control switch 5 when the water level rises to an early warning height is achieved, the light alarm control switch 5 is electrically connected with an external alarm, and the external alarm is controlled to be started by the aid of the extrusion and touching of the light alarm control switch 5 for early warning.

Further, the rotary driving assembly comprises an outer gear ring 12 fixedly sleeved on the rotary tube 7, a gear 13 is meshed with the left side of the outer gear ring 12, the bottom of the gear 13 is fixedly connected with the top end of an output shaft of the driving motor 14, and the gear 13 and the outer gear ring 12 are both positioned in the round box 6; the outer gear ring 12 is matched with the gear 13, when the driving motor 14 starts the driving gear 13 to rotate, the gear 13 drives the rotary tube 7 to rotate through the outer gear ring 12, and the rotary tube 7 is utilized to rotate to achieve the effect of driving the stainless steel cylinder-shaped filter screen 8 to rotate.

The application method of the embodiment is as follows: when the urban underground pipe network water level monitoring and early warning device is used, firstly, two L-shaped buckling seats 1 are fixedly arranged on the inner wall of an urban sewer, a balancing weight 2 is clamped on the two L-shaped buckling seats 1 through two hanging holes, convenient clamping and supporting are realized, when the urban underground pipe network water level rises and enters a stainless steel cylinder-shaped filter screen 8 through the sewer, water floats a hollow floating ball 9 upwards, the hollow floating ball 9 drives an extrusion block 11 to move upwards through a vertical guide rod 10, the extrusion block 11 extrudes and touches a tact alarm control switch 5, and the extruded and touched tact alarm control switch 5 controls an external alarm to be started for early warning, so that the urban underground pipe network water level monitoring and early warning effect is realized;

when water is introduced into the stainless steel cylindrical filter screen 8, the stainless steel cylindrical filter screen 8 can filter and shield floating garbage in the water, so that the floating garbage is prevented from entering the hollow floating ball 9 to cause winding influence, monitoring stability is improved, a time control switch 15 is preset to control the on-off time of a driving motor 14 according to cleaning interval requirements, when the cleaning time is reached, the time control switch 15 controls the driving motor 14 to automatically start, the driving motor 14 drives a gear 13 to rotate, the gear 13 drives a rotary pipe 7 to rotate through an outer gear ring 12, the rotary pipe 7 drives the stainless steel cylindrical filter screen 8 to rotate, the stainless steel cylindrical filter screen 8 drives floating garbage accumulated on the outer side of the stainless steel cylindrical filter screen to rotate, the floating garbage collides with a plurality of slag stirring rods 17, the slag stirring effect on the outer side of the stainless steel cylindrical filter screen 8 is achieved by the plurality of slag stirring rods 17, when the time is reached, the time control switch 15 controls the driving motor 14 to automatically close, the cleaning work is waited for the next cleaning time to be started again, the floating garbage on the outer side of the stainless steel cylindrical filter screen 8 is convenient to automatically stir, the blocking risk of the stainless steel cylindrical filter screen 8 is reduced, the water passing stability is improved, and further the monitoring effect is improved;

when the height of the water level needs to be adjusted according to the early warning requirement, a person starts the electric push rod 3 to drive the rectangular box 4 to move up and down, the rectangular box 4 sequentially passes through the cover plate, the round box 6 and the rotary tube 7 to drive the stainless steel cylinder-shaped filter screen 8 to move up and down, meanwhile, the rectangular box 4 drives the tact alarm control switch 5 to move up and down, the height of the tact alarm control switch 5 can be adjusted, the touched height of the tact alarm control switch is adjusted, the effect of flexibly adjusting the height of the water level early warning is achieved, the use flexibility is improved, when the water level early warning is required to be disassembled and moved out, the U-shaped handle is directly pulled upwards to drive the balancing weight 2 to move up, and the balancing weight 2 drives the two hanging holes to be separated from the two L-shaped buckling seats 1 upwards, so that the clamping state is released, and the device can be moved up and is convenient to disassemble and assemble.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a city underground pipe network water level monitoring early warning device, detains seat (1) and movable sleeve including two L shapes of fixed connection on city sewer inner wall and establishes the water level monitoring early warning device body on two L shapes detain seat (1), its characterized in that: the water level monitoring and early warning device body comprises lifting support components movably sleeved on two L-shaped buckling seats (1), wherein the bottom end of each lifting support component is fixedly connected with a rectangular box (4) with an opening at the bottom, and the bottom of each rectangular box (4) is fixedly connected with a cover plate;

the bottom of the cover plate is fixedly connected with a round box (6) with an opening at the top, a rotary pipe (7) is installed between the inner wall of the bottom of the round box (6) and the bottom of the cover plate in a sealing and rotating mode, the bottom end of the rotary pipe (7) extends to the lower portion of the round box (6) and is fixedly connected with a stainless steel cylinder-shaped filter screen (8) with a plugging structure at the bottom, and the left side of the bottom of the round box (6) is fixedly connected with an outer slag removal assembly matched with the stainless steel cylinder-shaped filter screen (8);

a touch alarm control switch (5) is fixedly connected to the inner wall of the top of the rectangular box (4), a floating press-contact assembly positioned in the stainless steel cylinder-shaped filter screen (8) is matched and arranged below the touch alarm control switch (5), and a cover plate is slidably sleeved on the floating press-contact assembly;

the rotary tube (7) is fixedly sleeved with a rotary driving assembly positioned in the round box (6), a driving motor (14) with an output shaft fixedly connected with the rotary driving assembly is fixedly installed on the inner wall of the bottom of the round box (6), and a time control switch (15) electrically connected with the driving motor (14) is fixedly installed on the inner wall of the left side of the rectangular box (4).

2. The urban underground pipe network water level monitoring and early warning device according to claim 1, wherein: the lifting support assembly comprises a balancing weight (2), two hanging holes which are respectively in movable contact with the outer sides of the corresponding L-shaped buckling seats (1) are formed in the left side of the top of the balancing weight (2), a U-shaped handle is fixedly connected to the top of the balancing weight (2), an electric push rod (3) is fixedly arranged at the bottom of the balancing weight (2), and the bottom end of the extending end of the electric push rod (3) is fixedly connected with the top of the rectangular box (4).

3. The urban underground pipe network water level monitoring and early warning device according to claim 2, wherein: the outside scarfing cinder subassembly includes montant (16) of fixed connection in circle box (6) bottom left side, the right side fixedly connected with of montant (16) dials sediment pole (17), dials sediment pole (17) and is located the left side of stainless steel cylinder filter screen (8).

4. The urban underground pipe network water level monitoring and early warning device according to claim 3, wherein: the floating press-contact assembly comprises an extrusion block (11) arranged below the press-contact alarm control switch (5), a vertical guide rod (10) is fixedly connected to the bottom of the extrusion block (11), the bottom end of the vertical guide rod (10) penetrates through the rotary pipe (7) to extend into the stainless steel cylinder-shaped filter screen (8) and is fixedly connected with a hollow floating ball (9), and the cover plate is slidably sleeved on the vertical guide rod (10).

5. The urban underground pipe network water level monitoring and early warning device according to claim 4, wherein: the rotary driving assembly comprises an outer gear ring (12) fixedly sleeved on the rotary pipe (7), a gear (13) is meshed with the left side of the outer gear ring (12), the bottom of the gear (13) is fixedly connected with the top end of an output shaft of the driving motor (14), and the gear (13) and the outer gear ring (12) are both positioned in the round box (6).

6. The urban underground pipe network water level monitoring and early warning device according to claim 1, wherein: the touch alarm control switch (5) is electrically connected with an external alarm.

7. The urban underground pipe network water level monitoring and early warning device according to claim 2, wherein: the storage battery is fixedly mounted on the left inner wall of the rectangular box (4), and the time control switch (15), the driving motor (14) and the electric push rod (3) are electrically connected with the storage battery.