阅读说明：本技术 一种生理性智控制枕垫 (Physiological intelligent control pillow ) 是由 沈志刚 周纪航 于 2021-02-07 设计创作，主要内容包括：本发明公开了一种生理性智控制枕垫,包括枕垫和控制器,控制器通过输气管连接枕垫,控制器内设置有第一腔室、第二腔室、第三腔室和导流腔,第一腔室通过导流腔连通第二腔室,导流腔内设置有第一活塞杆,第一活塞杆通过套筒连接在导流腔内,控制器内设置有第一分流腔室和第二分流腔室,第二腔室通过负压管经第一负压衔接管连通第一分流腔室,第一分流腔室通过第二负压衔接管连通第二分流腔室,第二分流腔室通过第二稳压管和第三通气管连通进气管,进气管连通第三腔室。本发明不仅可以实现将枕垫上的污浊空气间歇性吸入控制器内,通过控制器对空气进行净化处理,而且可以对控制器内的管道进行杀菌处理,避免出现交叉感染,达到空气净化的目的。(The invention discloses a physiological intelligent control pillow pad which comprises a pillow pad and a controller, wherein the controller is connected with the pillow pad through a gas pipe, a first cavity, a second cavity, a third cavity and a flow guide cavity are arranged in the controller, the first cavity is communicated with the second cavity through the flow guide cavity, a first piston rod is arranged in the flow guide cavity, the first piston rod is connected in the flow guide cavity through a sleeve, a first flow distribution cavity and a second flow distribution cavity are arranged in the controller, the second cavity is communicated with the first flow distribution cavity through a negative pressure pipe and a first negative pressure connecting pipe, the first flow distribution cavity is communicated with the second flow distribution cavity through a second negative pressure connecting pipe, the second flow distribution cavity is communicated with a gas inlet pipe through a second pressure stabilizing pipe and a third gas pipe, and the gas inlet pipe is communicated with the third cavity. The invention can not only realize intermittent suction of the dirty air on the pillow into the controller and purify the air through the controller, but also sterilize the pipeline in the controller, thereby avoiding cross infection and achieving the purpose of air purification.)

1. The utility model provides a physiological intelligent control pillow which characterized in that: the pillow comprises a pillow cushion and a controller, wherein the controller is connected with the pillow cushion through a gas pipe, a first cavity, a second cavity, a third cavity and a flow guide cavity are arranged in the controller, the first cavity is communicated with the gas pipe, the first cavity is communicated with the second cavity through the flow guide cavity, a first piston rod is arranged in the flow guide cavity, the first piston rod is connected in the flow guide cavity through a sleeve, a first pressure stabilizing cavity, a fifth pressure stabilizing cavity, a second pressure stabilizing cavity and a third pressure stabilizing cavity are sequentially formed between the sleeve and the inner wall of the controller from right to left, a fourth pressure stabilizing cavity is formed between one end of the first piston rod and the inner wall of the controller, a first flow dividing cavity and a second flow dividing cavity are arranged in the controller, the second cavity is communicated with the first flow dividing cavity through a first negative pressure connecting pipe, a third piston rod is arranged in the first flow dividing cavity, the end part of the third piston rod is connected with a piezoelectric stack, the first shunt chamber is communicated with the external atmosphere through a shunt chamber vent pipe, the first shunt chamber is communicated with the second pressure stabilizing chamber through a second vent pipe, the first shunt chamber is communicated with the second shunt chamber through a second negative pressure connecting pipe, a second piston rod is arranged in the second shunt chamber, the end part of the second piston rod is connected with a cylinder, the second shunt chamber is communicated with the fourth pressure stabilizing chamber through a first flow guide pipe, the right end of the second shunt chamber is provided with a horizontal pipe, the top of the horizontal pipe is communicated with the shunt pipe through a second flow guide pipe and a return pipe, the shunt pipe is connected with the first shunt chamber, the bottom of the horizontal pipe is communicated with the atmosphere through a third pressure stabilizing pipe, the third pressure stabilizing pipe is communicated with the third pressure stabilizing chamber through a branch pipe, and the second shunt chamber is communicated with the atmosphere through a fourth pressure stabilizing pipe, the second diversion cavity is communicated with an air inlet pipe through a second pressure stabilizing pipe and a third through air pipe, the air inlet pipe is communicated with the third cavity, and the third cavity is communicated with the diversion cavity.

2. The physiological intelligence control pillow according to claim 1, wherein: the first chamber is at positive pressure and the second chamber is at negative pressure.

3. The physiological intelligence control pillow according to claim 1, wherein: the first piston rod horizontally penetrates through the sleeve, and the other end of the first piston rod extends into the first cavity through the flow guide cavity.

4. The physiological intelligence control pillow according to claim 1, wherein: the first pressure stabilizing cavity is communicated with the external atmosphere through a first vent pipe.

5. The physiological intelligence control pillow according to claim 1, wherein: the first shunting cavity is connected with the fifth pressure stabilizing cavity through a first pressure stabilizing tube, and a first damper is arranged on the first pressure stabilizing tube.

6. The physiological intelligence control pillow according to claim 1, wherein: the cylinder comprises a left chamber and a right chamber, the left chamber and the right chamber are communicated with the second negative pressure connecting pipe, and a second air delivery hole is formed in the right chamber.

7. The physiological intelligence control pillow according to claim 1, wherein: and a third air delivery hole and a fourth air delivery hole are formed in the third pressure stabilizing tube, the third air delivery hole is positioned at one end close to the horizontal tube, and the fourth air delivery hole is positioned at one end far away from the horizontal tube.

8. A physiological intelligence control pillow according to claim 7, wherein: the aperture of the fourth gas transmission hole is larger than that of the third gas transmission hole.

9. The physiological intelligence control pillow according to claim 1, wherein: and a first air delivery hole is formed in the fourth air delivery pipe.

10. The physiological intelligence control pillow according to claim 1, wherein: and a second damper is arranged in the second voltage-stabilizing tube.

Technical Field

The invention relates to a physiological intelligent control pillow.

Background

At present, the air pollution in hospitals causes hospital infection to become a major sanitary problem, and various high-risk operations in hospitals, such as tracheal intubation, open surgery and the like, cause microorganisms such as bacteria, viruses and the like in patients, and are accompanied by the massive dispersion of droplets and aerosols, so that medical staff and other patients are at risk of infection.

Hospitals have higher population density compared with other occasions, because patients in the hospitals have different disease complexity, but the economic levels of the hospitals in different places are different, in order to save expenses, the patients with different diseases are often arranged in a ward, and ventilation is often realized only by windowing; in addition, when haze weather occurs, in order to prevent the outside polluted gas from entering the room, the door and the window are often required to be closed, the air in the ward cannot be purified, the air can gradually become dirty, pathogenic bacteria breed, the cross infection of the patient is accelerated, and the body of the patient is very unfavorable.

Disclosure of Invention

The invention aims to provide a technical scheme for physiologically and intelligently controlling a pillow pad aiming at the defects in the prior art, which can intermittently suck dirty air on the pillow pad into a controller, purify the air through the controller, sterilize pipelines in the controller, avoid cross infection and achieve the aim of purifying the air.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a physiological intelligent control pillow which characterized in that: the pillow comprises a pillow pad and a controller, wherein the controller is connected with the pillow pad through a gas pipe, a first cavity, a second cavity, a third cavity and a flow guide cavity are arranged in the controller, the first cavity is communicated with the gas pipe, the first cavity is communicated with the second cavity through the flow guide cavity, dirty air on the pillow pad can be sucked into the first cavity of the controller through the gas pipe and flows into the second cavity through the flow guide cavity to realize the suction and purification treatment of the air on the pillow pad, a first piston rod is arranged in the flow guide cavity, the first piston rod is connected in the flow guide cavity through a sleeve, the first piston rod and the sleeve can realize intermittent reciprocating movement so as to realize the intermittent suction of the air on the pillow pad and purify the air, a first pressure stabilizing cavity, a fifth pressure stabilizing cavity, a second pressure stabilizing cavity and a third pressure stabilizing cavity are sequentially formed between the sleeve and the inner wall of the controller from right to left, a fourth pressure stabilizing cavity is formed between one end of the first piston rod and the inner wall of the controller, through the design of a first pressure stabilizing cavity, a second pressure stabilizing cavity, a third pressure stabilizing cavity, a fourth pressure stabilizing cavity and a fifth pressure stabilizing cavity, a first piston rod and a sleeve can reach a pressure balance state, dirty air is conveniently sucked into the controller, a first shunting cavity and a second shunting cavity are arranged in the controller, the second cavity is communicated with the first shunting cavity through a negative pressure pipe through a first negative pressure connecting pipe, a third piston rod is arranged in the first shunting cavity, the end part of the third piston rod is connected with a piezoelectric stack, the first shunting cavity is communicated with the external atmosphere through a shunting cavity vent pipe, the first shunting cavity is communicated with the second pressure stabilizing cavity through a second vent pipe, the third piston rod can be controlled to horizontally move back and forth through the piezoelectric stack, the switching between negative pressure and positive pressure is realized, the air pressure of a pipeline in the controller is adjusted, the control requirements on the first piston rod and the sleeve are met, and the sucking and purification treatment of the dirty air are realized, the first shunting cavity is communicated with a second shunting cavity through a second negative pressure connecting pipe, a second piston rod is arranged in the second shunting cavity, the end part of the second piston rod is connected with a cylinder, the second piston rod is driven to horizontally move along the second shunting cavity through the change of the air pressure in the cylinder to realize the control of an air passage, the second shunting cavity is communicated with a fourth pressure stabilizing cavity through a first flow guide pipe to balance the pressure in the fourth pressure stabilizing cavity, the right end of the second shunting cavity is provided with a horizontal pipe, the top part of the horizontal pipe is communicated with the shunting pipe through a second flow guide pipe and a return pipe, the shunting pipe is connected with the first shunting cavity, the bottom part of the horizontal pipe is communicated with the atmosphere through a third pressure stabilizing pipe, the third pressure stabilizing pipe is communicated with the third pressure stabilizing cavity through a branch pipe, the second shunting cavity is communicated with the atmosphere through the fourth pressure stabilizing pipe, the second shunting cavity is communicated with an air inlet pipe through the second pressure stabilizing pipe and the third flow guide, the air inlet pipe is communicated with a third chamber, the third chamber is communicated with the flow guide cavity, and the third chamber is used for storing the sterilized compressed air; the design of this structure not only can realize carrying out purification treatment to the air in the dirty air intermittent type nature suction control ware on the bolster through the controller in, can carry out germicidal treatment to the pipeline in the controller moreover, avoids appearing cross infection, reaches air purification's purpose.

Furthermore, the first cavity is positive pressure, the second cavity is negative pressure, air at the position of the pillow can be sucked into the first cavity, the air can be input into the second cavity through the flow guide cavity, and the first piston rod can be pushed to move leftwards.

Further, the first piston rod horizontally penetrates through the sleeve, the other end of the first piston rod extends into the first cavity through the flow guide cavity, after the first piston rod moves leftwards, the sleeve moves leftwards at intervals of set time until the flow guide cavity and the first cavity are completely sealed by the right end of the first piston rod, and therefore the sterilization compressed gas in the third cavity can be conveniently introduced into the flow guide cavity and the second cavity, and the air and the pipeline can be sterilized.

Furthermore, the first pressure stabilizing cavity is communicated with the external atmosphere through the first vent pipe, so that the air pressure in the first pressure stabilizing cavity is balanced and stable.

Furthermore, the first shunting cavity is connected with a fifth pressure stabilizing cavity through a first pressure stabilizing tube, a first damper is arranged on the first pressure stabilizing tube, the fifth pressure stabilizing cavity is a closed cavity, in the process that the sleeve moves, the air pressure in the first pressure stabilizing tube can change, and the vibration caused by pressure change can be slowed down through the first damper, so that the noise is reduced.

Furthermore, the cylinder comprises a left cavity and a right cavity, the left cavity and the right cavity are both communicated with a second negative pressure connecting pipe, a second air delivery hole is formed in the right cavity, the air pressure in the left cavity and the air pressure in the right cavity are convenient to change due to the design of the second air delivery hole, and a second piston rod is driven to move after a pressure difference is generated.

Furthermore, a third air delivery hole and a fourth air delivery hole are formed in the third pressure stabilizing tube, the third air delivery hole is located at one end close to the horizontal tube, and the fourth air delivery hole is located at one end far away from the horizontal tube, so that the outside atmosphere can be conveniently input into the third pressure stabilizing cavity and the fourth pressure stabilizing cavity respectively.

Furthermore, the aperture of the fourth air delivery hole is larger than that of the third air delivery hole, so that the movement of the first piston rod and the sleeve generates a time difference.

Furthermore, a first air delivery hole is formed in the fourth air delivery pipe, so that air pressure in the fourth pressure stabilizing cavity can be conveniently controlled.

Furthermore, a second damping is arranged in the second pressure stabilizing tube, so that the movement of the second piston rod is conveniently slowed down, and the vibration is reduced.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

1. the design of the structure can realize that dirty air on the pillow pad is intermittently sucked into the controller, the air is purified by the controller, and the pipeline in the controller can be sterilized, so that cross infection is avoided, and the aim of air purification is fulfilled;

2. the design of the structure can control the third piston rod to horizontally move back and forth through the piezoelectric stack, so that the switching between negative pressure and positive pressure is realized, the air pressure of a pipeline in the controller is adjusted, the movement of the first piston rod and the sleeve generates a time difference, the control requirements on the first piston rod and the sleeve are met, and the suction and purification treatment of dirty air are realized;

3. the structure greatly improves the control precision of the controller and reduces the vibration and noise of the controller during working.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural view of a physiological intelligent control pillow of the present invention;

FIG. 2 is a schematic structural diagram of a controller according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

fig. 5 is a partially enlarged view of C in fig. 2.

In the figure: 1-pillow cushion; 2-a controller; 3-gas pipe; 4-a first chamber; 5-a second chamber; 6-a first piston rod; 7-a negative pressure pipe; 8-a third chamber; 9-a sleeve; 10-a first plenum chamber; 11-a second plenum chamber; 12-a third plenum chamber; 13-a second piston rod; 14-a cylinder; 15-a fourth plenum chamber; 16-a first flow splitting chamber; 17-a piezoelectric stack; 18-a third piston rod; 19-a fifth plenum chamber; 20-a second vent pipe; 21-a flow guide cavity; 22-an air inlet pipe; 23-a first vent pipe; 24-a return pipe; 25-a first negative pressure adapter tube; 26-a second negative pressure adapter tube; 27-a shunt cavity vent pipe; 28-shunt tubes; 29-a first voltage regulator tube; 30-first damping; 31-a second diversion chamber; 32-a first draft tube; 33-a second draft tube; 34-a second voltage regulator tube; 35-a third vent pipe; 36-a fourth air vent pipe; 37-a first gas transfer port; 38-right chamber; 39-second gas transfer port; 40-a third voltage regulator tube; 41-branch pipe; 42-a third gas transmission hole; 43-fourth gas transfer port; 44-horizontal tubes.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terms first, second and the like in the description and in the claims, and in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

As shown in fig. 1 to 5, the physiologically and intelligently controlled pillow of the present invention includes a pillow 1 and a controller 2, the controller 2 is connected to the pillow 1 through an air pipe 3, a first chamber 4, a second chamber 5, a third chamber 8 and a diversion chamber 21 are disposed in the controller 2, the first chamber 4 is communicated with the air pipe 3, the first chamber 4 is communicated with the second chamber 5 through the diversion chamber 21, dirty air on the pillow 1 can be sucked into the first chamber 4 of the controller 2 through the air pipe 3, and flows into the second chamber 5 through the diversion chamber 21, so as to realize suction and purification treatment of air on the pillow 1, the first chamber 4 is positive pressure, and the second chamber 5 is negative pressure, so that not only air at the pillow 1 can be sucked into the first chamber 4, but also air can be input into the second chamber 5 through the diversion chamber 21, and at the same time, the first piston rod 6 can be pushed to move leftward.

Be provided with first piston rod 6 in the water conservancy diversion chamber 21, first piston rod 6 passes through sleeve 9 to be connected in water conservancy diversion chamber 21, and first piston rod 6 and sleeve 9 can realize intermittent type nature reciprocating motion, and then realize inhaling the intermittent type nature of air on pillow 1 to carry out purification treatment to the air. The first piston rod 6 horizontally penetrates through the sleeve 9, the other end of the first piston rod 6 extends into the first cavity 4 through the flow guide cavity 21, after the first piston rod 6 moves leftwards, the sleeve 9 moves leftwards at intervals of set time until the flow guide cavity 21 and the first cavity 4 are completely sealed by the right end of the first piston rod 6, and therefore the sterilization compressed gas in the third cavity 8 can be conveniently introduced into the flow guide cavity 21 and the second cavity 5, and the air and the pipeline can be sterilized.

A first pressure stabilizing cavity 10, a fifth pressure stabilizing cavity 19, a second pressure stabilizing cavity 11 and a third pressure stabilizing cavity 12 are sequentially formed between the sleeve 9 and the inner wall of the controller 2 from right to left, a fourth pressure stabilizing cavity 15 is formed between one end of the first piston rod 6 and the inner wall of the controller 2, through the design of the first pressure stabilizing cavity 10, the second pressure stabilizing cavity 11, the third pressure stabilizing cavity 12, the fourth pressure stabilizing cavity 15 and the fifth pressure stabilizing cavity 19, the first piston rod 6 and the sleeve 9 can reach a pressure balance state, dirty air is conveniently sucked into the controller 2, the first pressure stabilizing cavity 10 is communicated with external atmosphere through a first vent pipe 23, and air pressure in the first pressure stabilizing cavity 10 is balanced and stable.

A first shunting cavity 16 and a second shunting cavity 31 are arranged in the controller 2, the second cavity 5 is communicated with the first shunting cavity 16 through a first negative pressure connecting pipe 25 by a negative pressure pipe 7, a third piston rod 18 is arranged in the first shunting cavity 16, the end part of the third piston rod 18 is connected with a piezoelectric stack 17, the first shunting cavity 16 is communicated with the external atmosphere through a shunting cavity vent pipe 27, the first shunting cavity 16 is communicated with the second pressure stabilizing cavity 11 through a second vent pipe 20, a reset spring is arranged in the second pressure stabilizing cavity 11, the third piston rod 18 can be controlled to horizontally move back and forth by the piezoelectric stack 17 to realize the switching of negative pressure and positive pressure, the air pressure of a pipeline in the controller 2 is adjusted to meet the control requirements of the first piston rod 6 and the sleeve 9 and realize the suction and purification treatment of dirty air, the first shunting cavity 16 is connected with a fifth pressure stabilizing cavity 19 through a first pressure stabilizing pipe 29, the first pressure stabilizing tube 29 is provided with a first damper 30, the fifth pressure stabilizing cavity 19 is a closed cavity, in the moving process of the sleeve 9, the air pressure in the first pressure stabilizing tube 29 can change, vibration caused by pressure change can be relieved through the first damper 30, and noise is reduced conveniently.

The first shunting cavity 16 is communicated with the second shunting cavity 31 through the second negative pressure connecting pipe 26, a second piston rod 13 is arranged in the second shunting cavity 31, the end part of the second piston rod 13 is connected with the air cylinder 14, the second piston rod 13 is driven to horizontally move along the second shunting cavity 31 through the change of air pressure in the air cylinder 14, the air circuit is controlled, the air cylinder 14 comprises a left cavity and a right cavity 38, the left cavity and the right cavity 38 are both communicated with the second negative pressure connecting pipe 26, the right cavity 38 is provided with a second air delivery hole 39, the air pressure in the left cavity and the right cavity 38 is convenient to change due to the design of the second air delivery hole 39, and the second piston rod 13 is driven to move after a pressure difference is generated.

The second flow dividing chamber 31 is communicated with the fourth pressure stabilizing chamber 15 through the first flow guide pipe 32, so that the pressure in the fourth pressure stabilizing chamber 15 is balanced, the right end of the second flow dividing chamber 31 is provided with a horizontal pipe 44, the top of the horizontal pipe 44 is communicated with the flow dividing pipe 28 through the second flow guide pipe 33 through the return pipe 24, the flow dividing pipe 28 is connected with the first flow dividing chamber 16, the bottom of the horizontal pipe 44 is communicated with the atmosphere through a third pressure stabilizing pipe 40, the third pressure stabilizing pipe 40 is communicated with the third pressure stabilizing chamber 12 through a branch pipe 41, the third pressure stabilizing pipe 40 is provided with a third air delivery hole 42 and a fourth air delivery hole 43, the third air delivery hole 42 is positioned at one end close to the horizontal pipe 44, and the fourth air delivery hole 43 is positioned at one end far away from the horizontal pipe 44, so that the outside atmosphere can be conveniently input into the third pressure. The fourth transfer port 43 has a larger diameter than the third transfer port 42, so that a time difference is generated between the movements of the first piston rod 6 and the sleeve 9.

The second branch chamber 31 is communicated with the atmosphere through a fourth vent pipe 36, and the fourth vent pipe 36 is provided with a first air delivery hole 37, so that the air pressure in the fourth pressure stabilizing chamber 15 can be conveniently controlled. The second flow dividing chamber 31 is communicated with the air inlet pipe 22 through a second pressure stabilizing pipe 34 and a third air through pipe 35, so that air pressure in the second flow dividing chamber 31 can be controlled conveniently, a second damper is arranged in the second pressure stabilizing pipe 34, movement of the second piston rod 13 can be slowed down conveniently, and vibration is reduced. The air inlet pipe 22 is communicated with the third chamber 8, the third chamber 8 is communicated with the flow guide cavity 21, and the third chamber 8 is used for storing the sterilized compressed air; the design of this structure not only can realize carrying out purification treatment to the air in the dirty air intermittent type nature suction controller 2 on the bolster 1 through controller 2 in, can carry out germicidal treatment to the pipeline in the controller 2 moreover, avoids appearing cross infection, reaches air purification's purpose.

The working principle of the invention is as follows:

1. the first piston rod 6 extends out to the right, so that the first cavity 4, the diversion cavity 21 and the second cavity 5 are communicated, the air in the first cavity 4 flows into the second cavity 5 through the diversion cavity 21, after the first piston rod 6 is opened for a period of time, the sleeve 9 moves to the left, the sterilized compressed air in the third cavity 8 is released, and the air in the second cavity 5 is sterilized;

2. then the piezoelectric stack 17 is electrified to drive the third piston rod 18 to move rightwards, the negative pressure tube 7 is communicated with the first shunt cavity chamber 16 through the first negative pressure connecting tube 25, negative pressure exists in the second negative pressure connecting tube 26 at the moment, the second piston rod 13 is closed when the piezoelectric stack 17 drives the third piston rod 18 to extend upwards, the second piston rod 13 is positioned at the right end, meanwhile, the first shunt cavity chamber 16 is communicated with the second pressure stabilizing cavity 11 through the second vent tube 20, and the pressure in the second pressure stabilizing cavity 11 is atmospheric pressure;

3. after the piezoelectric stack 17 is jacked, a negative pressure channel of the second negative pressure connecting pipe 26 is closed, the negative pressure pipe 7 is communicated with the second pressure stabilizing cavity 11 through the first shunting cavity 16 and the second vent pipe 20, negative pressure is introduced into the second pressure stabilizing cavity 11, the fifth pressure stabilizing cavity 19 and the first pressure stabilizing cavity 10 are also atmosphere, the pressure in the fifth pressure stabilizing cavity 19 and the first pressure stabilizing cavity 10 is not changed, and the pressure in the second pressure stabilizing cavity 11 is changed;

4. after the second negative pressure connecting pipe 26 is closed, external atmospheric pressure enters a right chamber 38 of the air cylinder 14 through a second air delivery hole 39, the left chamber is negative pressure, the right chamber 38 is changed from negative pressure to positive pressure to drive a second piston rod 13 to push leftwards, air in the air inlet pipe 22 is respectively input into a second pressure stabilizing pipe 34 and a third air through pipe 35, when the second piston rod 13 pushes leftwards, the air enters a fourth pressure stabilizing chamber 15, the fourth pressure stabilizing chamber 15 is connected with the atmosphere through a first flow guide pipe 32 at the beginning, then the second flow guide pipe 33 is connected with a right chamber of the first flow dividing chamber 16, the right side is atmospheric pressure when the first flow dividing chamber 16 begins, the second flow guide pipe 33 is always communicated with the fourth pressure stabilizing chamber 15, the inside of the third pressure stabilizing chamber 12 is also atmospheric pressure, and the first piston rod 6 can be closed;

5. the external atmosphere enters a third pressure stabilizing tube 40 through a fourth air transmission hole 43, one part of the atmosphere is guided into a third pressure stabilizing cavity 12 through a branch tube 41, the other part of the atmosphere is guided into a horizontal tube 44 through a third air transmission hole 42, when the pressure in the fourth pressure stabilizing cavity 15 is saturated, the pressure in the third pressure stabilizing cavity 12 is slowly balanced with the fourth pressure stabilizing cavity 15, and meanwhile, the pressure guided by a second guide tube 33 is guided to the right side of a first diversion cavity 16, so that a third piston rod 18 is pushed back to the left side, and circulation is realized;

6. when the third piston rod 18 is pushed to the right, the pressure in the second pressure stabilizing cavity 11 is changed into negative pressure, the pressure in the third pressure stabilizing cavity 12, the pressure in the fifth pressure stabilizing cavity 19 and the pressure in the first pressure stabilizing cavity 10 are all atmospheric, for the whole sleeve 9, the pressure in the third pressure stabilizing cavity 12 is right, the pressure in the first pressure stabilizing cavity 10 is right, the pressure in the fifth pressure stabilizing cavity 19 is left, the pressure in the second pressure stabilizing cavity 11 is right at the beginning, the sleeve 9 is in a closed state, when the pressure in the second pressure stabilizing cavity 11 is changed into negative pressure, the sleeve 9 can move to the left, the sleeve 9 moves after the first piston rod 6 is opened, the movement is slower than that of the first piston rod 6, the sleeve 9 is opened after a period of time after the first piston rod 6 is opened, and the sleeve 9 is closed immediately after the first piston rod 6 is closed.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.