CN218373975U

CN218373975U - Pneumatic precipitation device

Info

Publication number: CN218373975U
Application number: CN202222964723.6U
Authority: CN
Inventors: 胡任; 顾佳; 宋伟; 王泽晖; 易璐; 方铖; 刘宇青; 郑宇航; 李京; 胡志勇
Original assignee: Hunan No3 Construction And Engineering Co ltd
Current assignee: Hunan No3 Construction And Engineering Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-01-24
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses a pneumatic precipitation device, including a steam displacement section of thick bamboo, the fixed cover in the outside bottom of a steam displacement section of thick bamboo is equipped with the fixed plate, the inlet opening has all been seted up to the both sides bottom of a steam displacement section of thick bamboo, and one side that two inlet openings are close all communicates has the check valve with a steam displacement section of thick bamboo inner wall fixed connection, be equipped with L shape in the steam displacement section of thick bamboo and go out the water takeover, L shape goes out the top of water takeover and extends to the top of a steam displacement section of thick bamboo. The utility model discloses an automatic mechanism of admitting air, the buoyancy lift trigger mechanism, first setting of touching switch and second light touch switch, can be in the foundation ditch automatic opening when water is many carry out precipitation work, and can be at discharge back water level reduction back self-closing, need not personnel and observe constantly and judge the operation, reduce the phenomenon that takes place the idle running, intelligent degree is high, setting through screw drive guiding mechanism, the convenience is according to the water level that actual need adjustment started precipitation, improve and use the flexibility, satisfy the automation demand to precipitation work.

Description

Pneumatic precipitation device

Technical Field

The utility model relates to a pneumatic precipitation equipment technical field specifically is a pneumatic precipitation device.

Background

The pneumatic precipitation equipment adopts high-pressure gas as power, combines a water gas displacer to realize the construction method of foundation pit precipitation, utilizes the pneumatic water pump to replace traditional immersible pump to pump water, and the water pump is difficult to idle running damage, and pneumatic precipitation is applicable to the precipitation of the abundant ground basis of groundwater, is applicable to the higher soil body of osmotic coefficient and dredges, utilizes pneumatic precipitation can continuously pump water to reduce ground water level, can guarantee that the basement soil remains dry state throughout, makes things convenient for follow-up construction.

The existing pneumatic pump precipitation device utilizes a pneumatic pump to supply air to a water-air displacer and utilizes the pressure of air to water to discharge water from a discharge pipeline (for example, a pneumatic precipitation device disclosed by an authorized bulletin number CN209741881U comprises five parts, namely a water storage tank, an underground water collector, a water outlet pipe, a gas pipe and a gas conveying device, wherein although the pneumatic precipitation device can realize water discharge by air supply, when the pneumatic pump precipitation device is suitable for use in foundation pit precipitation, personnel for starting and stopping the gas conveying device need to judge according to the water quantity condition); for the air supply work, the pneumatic pump is controlled to be opened and closed by depending on personnel, the personnel control mode is poor in real-time performance, the personnel are required to observe the water level in real time to judge, the intelligent degree is low, the idle running phenomenon is easy to occur, and the use requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic precipitation device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a pneumatic precipitation device comprises a water vapor displacement cylinder, wherein a fixing plate is fixedly sleeved at the bottom of the outer side of the water vapor displacement cylinder, water inlet holes are formed in the bottoms of two sides of the water vapor displacement cylinder, one side close to the two water inlet holes is communicated with a one-way valve fixedly connected with the inner wall of the water vapor displacement cylinder, an L-shaped water outlet connecting pipe is arranged in the water vapor displacement cylinder, and the top of the L-shaped water outlet connecting pipe extends to the upper part of the water vapor displacement cylinder;

the top of the right side of the water vapor replacement cylinder is communicated with and fixed with an automatic air inlet mechanism, and the automatic air inlet mechanism is used for automatically supplying air into the water vapor replacement cylinder;

the top of the left side of the water vapor displacement cylinder is fixedly connected with a thread driving guide mechanism, the bottom end of the thread driving guide mechanism is fixedly connected with a first tact switch electrically connected with the automatic air inlet mechanism, and the thread driving guide mechanism is used for adjusting the up-and-down displacement of the first tact switch so as to adjust the height of the first tact switch which is triggered to be opened;

the water vapor replacement cylinder is movably sleeved with a floating trigger mechanism matched with the two water inlet holes and the first tact switch, the right side of the bottom of the floating trigger mechanism is fixedly embedded with a second tact switch which is in movable contact with the top of the fixed plate, the second tact switch is electrically connected with the automatic air inlet mechanism, and the floating trigger mechanism is used for being triggered and opened by buoyancy of water to the first tact switch.

Preferably, the automatic air inlet mechanism comprises an air inlet connecting pipe, an electromagnetic valve, an explosion-proof hose, an air storage tank, an air compressor and a controller, the air inlet connecting pipe is communicated with and fixed at the top of the right side of the water vapor displacement cylinder, the air inlet connecting pipe is located above the bottom end of the L-shaped water outlet connecting pipe, an air outlet of the electromagnetic valve is communicated with and fixed at the right end of the air inlet connecting pipe, the bottom end of the explosion-proof hose is communicated with and fixed at an air inlet of the electromagnetic valve, the air storage tank is located above the water vapor displacement cylinder, an air outlet of the air storage tank is communicated with and fixed at the bottom end of the explosion-proof hose, the air compressor is arranged on the left side of the air storage tank, an air outlet end of the air compressor is communicated with and fixed at an air inlet of the air storage tank, the controller is fixed and electrically connected to the front side of the air compressor, the first light-touch switch, the second light-touch switch and the electromagnetic valve are electrically connected with the controller, the first light-touch switch and the second light-touch switch are arranged to be capable of respectively transmitting opening and closing signals to the controller when being pressed and touched, so that the air compressor is automatically opened and closed, the air inlet connecting pipe, the electromagnetic valve, the explosion-proof hose, the air storage tank, the air compressor and the air compressor are matched with the air storage tank, and the controller, and the air compressor can control the air compressor to control the air inlet connecting pipe to control the air displacement cylinder to automatically start the water vapor displacement cylinder to enable the water vapor to enter the water vapor displacement cylinder to automatically discharge pipe to discharge water vapor to enter the L-discharge pipe when the water vapor displacement cylinder to discharge pipe.

Preferably, screw thread drive guiding mechanism includes that the top is the rectangle box, the lift seat, the screw rod, rectangle pole and the knob that the opening set up, the right side of rectangle box and the left side top fixed connection of steam replacement section of thick bamboo, the bottom of screw rod and the bottom inner wall of rectangle box rotate to be connected, the top of screw rod extend to the top of rectangle box and with the bottom fixed connection of knob, lift seat thread bush is established on the screw rod, lift seat slidable mounting is on the left side inner wall of rectangle box, the bottom right side of lift seat and the top fixed connection of rectangle pole, the bottom of rectangle pole slides and runs through the bottom inner wall of rectangle box and with the first top fixed connection who dabs the switch, the rectangle box that sets up, the lift seat, the screw rod, rectangle pole and knob cooperation, can go up and down the first position of dabbing the switch of adjustment when rotating the knob.

Preferably, the buoyancy lift trigger mechanism comprises a sliding sleeve and an annular hollow floating plate, the sliding sleeve is movably sleeved outside the water vapor displacement cylinder, the annular hollow floating plate is fixedly sleeved on the sliding sleeve, the two water inlet holes are all located in the sliding sleeve, the sliding sleeve is located below the first tact switch and is matched with the first tact switch, the second tact switch is embedded and fixed on the right side of the bottom of the sliding sleeve, the sliding sleeve and the annular hollow floating plate are matched, the annular hollow floating plate can float by utilizing the buoyancy of water when the water level is high, and the sliding sleeve is driven to upwards remove the shielding of the water inlet holes and extrude and touch the first tact switch.

Preferably, one side of each of the two check valves close to each other is an outlet, and a filter screen is fixedly connected in the water inlet.

Preferably, the top of the water vapor replacement cylinder is fixedly connected with a U-shaped handle, and the inner wall of the top of the water vapor replacement cylinder is fixedly connected with a through hole fixedly connected with the outer side of the L-shaped water outlet connecting pipe.

Preferably, the top of the lifting seat is provided with a threaded hole in threaded connection with the screw, and the front side of the rectangular rod is provided with scale marks matched with the bottom of the rectangular box.

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

1. the pneumatic dewatering device is matched with the L-shaped water outlet connecting pipe through the automatic air inlet mechanism, the floating touch mechanism, the first light touch switch, the second light touch switch and the L-shaped water outlet connecting pipe, the first light touch switch is pressed and touched by buoyancy of water, the pneumatic dewatering device is convenient to automatically open to dewater when the foundation pit contains much water, can be automatically closed after the water level is reduced after being discharged, and is high in intelligent degree;

2. this pneumatic precipitation device, through the screw thread drive guiding mechanism and the first cooperation of dabbing the switch that sets up, can adjust the first height that dabs the switch to this can adjust its height that is touched by the extrusion, the water level of precipitation is started in the convenient adjustment according to actual need.

The utility model discloses an automatic mechanism of admitting air, the buoyancy lift trigger mechanism, first setting of touching switch and second light touch switch, can be when the foundation ditch water-logging is many automatic open carry out precipitation work, and can be at discharge back water level reduction back self-closing, it constantly observes the judgement operation to need not personnel, reduce the phenomenon that takes place the idle running, intelligent degree is high, setting through screw thread drive guiding mechanism, the convenience is according to the water level that actual need adjustment started precipitation, improve and use the flexibility, satisfy the automation demand to precipitation work.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;

fig. 2 is a schematic view of the front sectional structure of the present invention.

In the figure: 1. a water vapor displacement cylinder; 2. a fixing plate; 3. a one-way valve; 4. a water inlet hole; 5. a sliding sleeve; 6. an annular hollow floating plate; 7. a first tact switch; 8. a gas storage tank; 9. a controller; 10. an electromagnetic valve; 11. an air inlet connecting pipe; 12. an explosion-proof hose; 13. an L-shaped water outlet connecting pipe; 14. a rectangular box; 15. a rectangular bar; 16. a lifting seat; 17. a screw; 18. a knob; 19. and a second tact switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to fig. 2, the pneumatic precipitation device provided in this embodiment includes a water vapor displacement cylinder 1, a fixing plate 2 is fixedly sleeved at the bottom of the outer side of the water vapor displacement cylinder 1, water inlet holes 4 are respectively formed at the bottoms of both sides of the water vapor displacement cylinder 1, one side of each of the two adjacent water inlet holes 4 is communicated with a check valve 3 fixedly connected with the inner wall of the water vapor displacement cylinder 1, one side of each of the two adjacent check valves 3 is an outlet, a filter screen is fixedly connected in each water inlet hole to filter impurities in inflowing water, an L-shaped water outlet connection pipe 13 is arranged in the water vapor displacement cylinder 1, the top of the L-shaped water outlet connection pipe 13 extends to the upper part of the water vapor displacement cylinder 1, the top of the water vapor displacement cylinder 1 is fixedly connected with a U-shaped handle, and a through hole fixedly connected with the outer side of the L-shaped water outlet connection pipe 13 is fixedly connected on the inner wall of the top of the water vapor displacement cylinder 1;

an automatic air inlet mechanism is communicated and fixed at the top of the right side of the water vapor replacement cylinder 1 and is used for automatically supplying air into the water vapor replacement cylinder 1, wherein the automatic air inlet mechanism comprises an air inlet connecting pipe 11, an electromagnetic valve 10, an explosion-proof hose 12, an air storage tank 8, an air compressor and a controller 9, the air inlet connecting pipe 11 is communicated and fixed at the top of the right side of the water vapor replacement cylinder 1, the air inlet connecting pipe 11 is positioned above the bottom end of an L-shaped water outlet connecting pipe 13, an air outlet of the electromagnetic valve 10 is communicated and fixed with the right end of the air inlet connecting pipe 11, the bottom end of the explosion-proof hose 12 is communicated and fixed with an air inlet of the electromagnetic valve 10, the air storage tank 8 is positioned above the water vapor replacement cylinder 1, an air outlet of the air storage tank 8 is communicated and fixed with the bottom end of the explosion-proof hose 12, the air compressor is arranged at the left side of the air storage tank 8, an air outlet end of the air compressor is communicated and fixed with an air inlet of the air storage tank 8, the controller 9 is fixed and electrically connected to the front side of the air compressor, the air inlet connecting pipe 11, the electromagnetic valve 10, the explosion-proof hose 12, the air storage tank 8, the air compressor is matched with the air storage tank 8, the air inlet connecting pipe 11, the air compressor and the controller 9, when the controller 9 controls the air compressor to be automatically replaced into the water vapor replacement cylinder 1, so that the air compressor 1, the air compressor can be automatically, and discharged into the water vapor replacement cylinder 1, and then the water vapor replacement cylinder 1 under the L-supply water vapor replacement cylinder 1 under the water replacement cylinder 1 under the L-discharge pipe 13;

the left top of the water vapor replacement cylinder 1 is fixedly connected with a thread driving guide mechanism, the bottom end of the thread driving guide mechanism is fixedly connected with a first tact switch 7 electrically connected with a controller 9, the thread driving guide mechanism is used for adjusting the up-and-down displacement of the first tact switch 7, so as to realize the adjustment of the height of the first tact switch 7 which is triggered to be opened, wherein the thread driving guide mechanism comprises a rectangular box 14 with an opening at the top, a lifting seat 16, a screw rod 17, a rectangular rod 15 and a knob 18, the right side of the rectangular box 14 is fixedly connected with the left top of the water vapor replacement cylinder 1, the bottom end of the screw rod 17 is rotatably connected with the bottom inner wall of the rectangular box 14, the top end of the screw rod 17 extends to the upper side of the rectangular box 14 and is fixedly connected with the bottom of the knob 18, the lifting seat 16 is sleeved on the screw rod 17 in a thread manner, the top of the lifting seat 16 is provided with a thread hole in threaded connection with the screw rod 17, the screw thread connection relation of the screw rod 17 and the threaded hole is utilized to achieve the effect of conveniently driving the lifting seat 16 to move up and down when the screw rod 17 rotates, the lifting seat 16 is slidably mounted on the inner wall of the left side of the rectangular box 14, wherein a T-shaped guide rail is fixedly connected to the inner wall of the left side of the rectangular box 14, a T-shaped sliding chute in sliding connection with the T-shaped guide rail is formed in the left side of the lifting seat 16, the lifting seat 16 is slidably mounted on the inner wall of the left side of the rectangular box 14 through the T-shaped guide rail to achieve the effect of vertically slidably guiding the lifting seat 16, the right side of the bottom of the lifting seat 16 is fixedly connected with the top end of the rectangular rod 15, the bottom end of the rectangular rod 15 slidably penetrates through the inner wall of the bottom of the rectangular box 14 and is fixedly connected with the top of the first tact switch 7, a rectangular through hole in sliding connection with the outer side of the rectangular rod 15 is formed in the inner wall of the bottom of the rectangular box 14 to achieve the effect of allowing the rectangular rod 15 to slidably pass through, the scale marks matched with the bottom of the rectangular box 14 are arranged on the front side of the rectangular rod 15, the set scale marks are convenient for personnel to judge the downward moving distance of the rectangular rod 15, the rectangular box 14, the lifting seat 16, the screw 17, the rectangular rod 15 and the knob 18 are matched, and the position of the first tact switch 7 can be adjusted in a lifting mode when the knob 18 is rotated;

a floating trigger mechanism matched with the two water inlet holes and the first light touch switch 7 is movably sleeved on the water vapor replacement cylinder 1, a second light touch switch 19 movably contacted with the top of the fixed plate 2 is fixedly embedded on the right side of the bottom of the floating trigger mechanism, the second light touch switch 19 is electrically connected with the controller 9, the arranged first light touch switch 7 and the second light touch switch 19 can respectively transmit opening and closing signals to the controller 9 when being extruded and touched, so that the controller 9 controls the air compressor and the electromagnetic valve 10 to be automatically opened and closed, the floating trigger mechanism is used for automatically rising by the buoyancy of water to touch and open the first light touch switch 7, the floating trigger mechanism comprises a sliding sleeve 5 and an annular hollow floating plate 6, the sliding sleeve 5 is movably sleeved on the outer side of the water vapor replacement cylinder 1, the annular hollow floating plate 6 is fixedly sleeved on the sliding sleeve 5, the two water inlet holes are both positioned in the sliding sleeve 5, the sliding sleeve 5 is positioned below the first light touch switch 7 and matched with the first light touch switch 7, the second light touch switch 19 is fixedly sleeved on the right side of the bottom of the sliding sleeve 5, the sliding sleeve 5 is provided with the floating switch 19, and the floating trigger mechanism is used for removing the buoyancy of the floating switch 5 and the floating switch to drive the floating of the annular hollow floating switch to be matched with the floating plate 6, and the floating switch 5, and the floating water level, and the floating switch 5 is used for removing the water level, and the floating of the floating switch 5, and the floating switch to remove the water level; the utility model discloses an automatic mechanism of admitting air, the buoyancy lift trigger mechanism, first setting of touching switch 7 and the second light touch switch 19, can be in the foundation ditch automatic opening of water when many times carry out precipitation work, and can be at discharge back water level reduction back self-closing, need not personnel and observe constantly and judge the operation, reduce the phenomenon that takes place the idle running, intelligent degree is high, setting through screw drive guiding mechanism, the convenience is according to the water level that actual need adjustment started precipitation, improve and use the flexibility, satisfy the automation demand to precipitation work.

The application method of the embodiment comprises the following steps: when a foundation pit is lowered, the device is placed inside the foundation pit, or the device is fixed inside the foundation pit by utilizing a fixing plate 2 to match an external bolt, a gas storage tank 8 is arranged outside, an explosion-proof hose 12 is used for connecting a gas outlet of the gas storage tank 8 with an electromagnetic valve 10, an L-shaped water outlet connecting pipe 13 is connected with an external drainage pipeline, when water in the foundation pit rises, the water floats upwards to an annular hollow floating plate 6, the annular hollow floating plate 6 moves upwards to drive a sliding sleeve 5 to move upwards and remove shielding of a water inlet hole, at the moment, the water in the foundation pit flows into a water vapor replacement cylinder 1 through the water inlet hole, when the sliding sleeve 5 moves upwards to be in extrusion contact with a first light-touch switch 7, at the moment, the first light-touch switch 7 is touched and transmits an opening signal to a controller 9, the controller 9 controls an air compressor and the electromagnetic valve 10 to be opened, the air compressor inflates air into the gas storage tank 8, the gas storage tank 8 sequentially passes through the explosion-proof hose 12, the electromagnetic valve 10 and the air inlet connecting pipe 11 to supply air to the water vapor replacement cylinder 1, and the gas at the bottom of the L-shaped water outlet connecting pipe 13 enters the foundation pit, when the water outlet pipe 13 and the water in the foundation pit is automatically, and the water outlet of the foundation pit, the water outlet pipe 13, and the water outlet pipe is extruded by the water in the foundation pit, and the water outlet pipe 11, and the water outlet pipe is automatically, and the water in the foundation pit;

when the water level in the foundation pit is reduced along with the discharge of water, the sliding sleeve 5 falls back downwards and drives the second light touch switch 19 to move downwards under the action of self gravity, when the second light touch switch 19 moves downwards to be in extrusion contact with the top of the fixed plate 2, the second light touch switch 19 transmits a closing signal to the controller 9 at the moment, the controller 9 controls the electromagnetic valve 10 and the air compressor to be closed to stop air supply work, so that the water in the foundation pit is conveniently discharged to ensure that the water level is reduced and then the air supply work is automatically closed to stop air supply work, personnel do not need to observe and judge operation constantly, the phenomenon of idle running is reduced, and the intelligent degree is high;

when the water level height of rainfall is started to the adjustment of actual demand, forward start knob 18 makes it drive screw rod 17 and rotates, screw rod 17 rotates and can drive lift seat 16 and move up or down, lift seat 16 drives rectangle pole 15 and moves up or down, rectangle pole 15 drives first dabbing switch 7 and moves up or down, personnel can accurately judge the distance that first dabbing switch 7 reciprocated through observing the scale mark on rectangle pole 15, the adjustment is suitable after, stop rotating knob 18 can, through the height of adjusting first dabbing switch 7, with this height that can adjust it and be touched by the extrusion, and then conveniently adjust the water level that begins the rainfall according to actual need, improve and use the flexibility.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pneumatic precipitation device comprises a water vapor displacement cylinder (1) and is characterized in that: the bottom of the outer side of the water vapor replacement cylinder (1) is fixedly sleeved with a fixing plate (2), water inlet holes (4) are formed in the bottoms of two sides of the water vapor replacement cylinder (1), one side, close to the two water inlet holes (4), is communicated with a one-way valve (3) fixedly connected with the inner wall of the water vapor replacement cylinder (1), an L-shaped water outlet connecting pipe (13) is arranged in the water vapor replacement cylinder (1), and the top of the L-shaped water outlet connecting pipe (13) extends to the upper part of the water vapor replacement cylinder (1);

the top of the right side of the water vapor replacement cylinder (1) is communicated with and fixed with an automatic air inlet mechanism;

the top of the left side of the water vapor replacement cylinder (1) is fixedly connected with a thread driving guide mechanism, and the bottom end of the thread driving guide mechanism is fixedly connected with a first light touch switch (7) which is electrically connected with an automatic air inlet mechanism;

the water vapor replacement cylinder (1) is movably sleeved with a floating trigger mechanism matched with the two water inlet holes and the first light touch switch (7), the right side of the bottom of the floating trigger mechanism is embedded with a second light touch switch (19) which is fixedly in movable contact with the top of the fixed plate (2), and the second light touch switch (19) is electrically connected with the automatic air inlet mechanism.

2. A pneumatic precipitation device according to claim 1, wherein: automatic mechanism admits air is including admitting air takeover (11), solenoid valve (10), explosion-proof hose (12), gas holder (8), air compressor machine and controller (9), admit air takeover (11) intercommunication and fix at the right side top of steam replacement section of thick bamboo (1), admit air takeover (11) are located the bottom top that L shape goes out water takeover (13), the gas outlet of solenoid valve (10) and the right-hand member intercommunication of admitting air takeover (11) are fixed, and the bottom of explosion-proof hose (12) and the air inlet intercommunication of solenoid valve (10) are fixed, gas holder (8) are located the top of steam replacement section of thick bamboo (1), and the gas outlet of gas holder (8) and the bottom intercommunication of explosion-proof hose (12) are fixed, the air compressor machine sets up in the left side of gas holder (8), and the end of giving vent to anger of air compressor machine communicates with the air inlet of gas holder (8) and fixes, and fixed and electric connection is in the front side of controller (9) air compressor machine, first light touch switch (7), second light touch switch (19) and solenoid valve (10) all with controller (9) electric connection.

3. A pneumatic precipitation device according to claim 2, wherein: screw thread drive guiding mechanism includes that the top is rectangle box (14), lift seat (16), screw rod (17), rectangle pole (15) and knob (18) that the opening set up, the right side of rectangle box (14) and the left side top fixed connection of a steam replacement section of thick bamboo (1), the bottom of screw rod (17) rotates with the bottom inner wall of rectangle box (14) to be connected, the top of screw rod (17) extend to the top of rectangle box (14) and with the bottom fixed connection of knob (18), lift seat (16) thread bush is established on screw rod (17), lift seat (16) slidable mounting is on the left side inner wall of rectangle box (14), the bottom right side of lift seat (16) and the top fixed connection of rectangle pole (15), the bottom of rectangle pole (15) slides and runs through the bottom inner wall of rectangle box (14) and dabs the top fixed connection of switch (7) with first.

4. A pneumatic precipitation device according to claim 1, wherein: the buoyancy lift trigger mechanism comprises a sliding sleeve (5) and an annular hollow floating plate (6), wherein the sliding sleeve (5) is movably sleeved outside the water vapor replacement cylinder (1), the annular hollow floating plate (6) is fixedly sleeved on the sliding sleeve (5), two water inlet holes are formed in the sliding sleeve (5), the sliding sleeve (5) is located below the first touch switch (7) and matched with the first touch switch (7), and the second touch switch (19) is embedded and fixed on the right side of the bottom of the sliding sleeve (5).

5. A pneumatic precipitation device according to claim 1, wherein: one sides of the two check valves (3) close to each other are outlets, and a filter screen is fixedly connected in the water inlet hole.

6. A pneumatic precipitation device according to claim 1, wherein: the top of the water vapor replacement cylinder (1) is fixedly connected with a U-shaped handle, and the inner wall of the top of the water vapor replacement cylinder (1) is fixedly connected with a through hole fixedly connected with the outer side of the L-shaped water outlet connecting pipe (13).

7. A pneumatic precipitation device according to claim 3, wherein: the top of the lifting seat (16) is provided with a threaded hole in threaded connection with the screw rod (17), and the front side of the rectangular rod (15) is provided with scale marks matched with the bottom of the rectangular box (14).