阅读说明：本技术 一种气球自动充放气装置及方法 (Automatic balloon inflation and deflation device and method ) 是由 杨程 于 2019-09-29 设计创作，主要内容包括：一种气球自动充放气装置及方法,包括第一气球部、第二气球部、密封体、定位块、基座、绳索、绳索收放模块、气体抽充模块,第二气球部设置在第一气球部的下方,其上设有气体通孔,气体通孔内壁上设有阶梯环,所述密封体安装在阶梯环的上方,所述定位块安装在基座上,其上设有过孔,所述基座内设有空腔,空腔上方设有与定位块的过孔相连的通孔,所述绳索的上端与气球下方连接,下端与所述绳索收放模块连接,所述绳索收放模块安装在所述基座的空腔中,所述气体抽充模块与所述空腔连接。本发明涉及气球领域,对于可回收复用的升空气球,可以在气球回收时高效准确定位充气口,在充放气时快速高效地完成充气和放气,且充气后能够迅速对气球实现可靠密封。(The automatic balloon inflation and deflation device comprises a first balloon portion, a second balloon portion, a sealing body, a positioning block, a base, a rope retraction and release module and a gas pumping and inflation module, wherein the second balloon portion is arranged below the first balloon portion, a gas through hole is formed in the second balloon portion, a step ring is arranged on the inner wall of the gas through hole, the sealing body is arranged above the step ring, the positioning block is arranged on the base, a through hole is formed in the positioning block, a cavity is formed in the base, a through hole connected with the through hole of the positioning block is formed in the upper portion of the cavity, the upper end of the rope is connected with the lower portion of the balloon, the lower end of the rope is connected with the rope retraction and release module, the rope retraction and release module is arranged in. The invention relates to the field of balloons, and discloses a recyclable and reusable levitation balloon, which can efficiently and accurately position an inflation inlet when the balloon is recycled, can rapidly and efficiently complete inflation and deflation when the balloon is inflated and deflated, and can rapidly and reliably seal the balloon after being inflated.)

1. An automatic balloon inflation and deflation device is characterized by comprising a first balloon part (402), a second balloon part (6), a sealing body (5), a positioning block (11), a base (2), a rope (3), a rope retraction module and a gas pumping and inflation module, wherein the first balloon part (402) can increase or contract in volume along with inflation and deflation, the second balloon part (6) is arranged below the first balloon part (402), a gas through hole (605) is formed in the second balloon part, a stepped ring (602) with the aperture smaller than that of the gas through hole (605) is arranged on the inner wall of the gas through hole (605), the sealing body (5) is arranged above the stepped ring (602), the outer diameter of the sealing body is larger than the inner diameter of the stepped ring (602), the stepped ring (602) and the sealing body (5) are both made of ferromagnetic materials and have at least one magnetic property, and the positioning block (11) is arranged on the base (2), be equipped with via hole (1101) on it, be equipped with cavity (204) in base (2), cavity (204) top is equipped with through-hole (202) that link to each other with via hole (1101) of locating piece (11), second ball portion (6) with locating piece (11) are ferromagnetic material and have at least one and be equipped with the electromagnet winding, the upper end and balloon (4) below of rope (3) are connected, the lower extreme with the rope receive and releases the module and connect, the rope receive and releases the module and install in cavity (204) of base (2), gaseous pump-out fill module with cavity (204) are connected for aerify and bleed the space of cavity (204) and with cavity (204) intercommunication.

2. The automatic balloon inflation and deflation device according to claim 1, further comprising a push rod (7) and a push rod driving module, wherein the push rod (7) is a telescopic rod, the telescopic rod is controlled by the push rod driving module to extend and retract, and the uppermost end of the push rod (7) can pass through the through hole (202) of the cavity (204) and the through hole (1101) of the positioning block (11) to reach the upper part of the positioning block (11) during extension.

3. The automatic balloon inflation and deflation device according to claim 1, wherein the positioning block (11) is provided with an electromagnet winding, the sealing body (5) is a magnet, and the direction of the magnetic induction line of the magnetic field generated above the positioning block (11) after the electromagnet winding is electrified is opposite to the direction of the magnetic induction line below the sealing body (5).

4. The automatic balloon inflation and deflation device as claimed in claim 1, wherein the gas pumping and inflation device comprises a gas pump and a gas storage tank, wherein the gas outlet of the gas storage tank is connected with the cavity (204), the gas inlet of the gas pump is connected with the cavity (204), the gas outlet of the gas pump is connected with the gas inlet of the gas storage tank, and the gas inlet and the gas outlet of the gas storage tank are provided with valves.

5. The automatic balloon inflation and deflation device according to claim 1, wherein at least two restraining rods (603) are arranged above the stepped ring (602), the restraining rods (603) are cylindrical, the upper ends of the restraining rods are provided with limiting parts (604), and the cross-sectional areas of the limiting parts (604) are larger than the cross-sectional areas of the restraining rods (603); the sealing body (5) is provided with a through hole (504) matched with the constraint rod (603).

6. The automatic balloon inflation and deflation device according to claim 1, wherein a sealing gasket (15) is arranged between the sealing body (5) and the step ring (602), and a sealing gasket (16) is arranged on the upper surface of the positioning block (11).

7. An automatic balloon inflation/deflation device as claimed in claim 1, wherein the upper end of the rope (3) is connected directly below the sealing body (5).

8. The automatic balloon inflation and deflation device according to claim 2 or 3, further comprising a power supply, a controller and a pressure detection meter, wherein the power supply is connected with the controller, and the controller is connected with the pressure detection meter, the gas pumping and inflation module, the electromagnet winding, the ejector rod driving module and the rope winding and unwinding module.

9. An automatic balloon inflation/deflation method, wherein the automatic balloon inflation/deflation apparatus according to any one of claims 1 to 8 comprises

Step 1, initializing a working state: the electromagnet winding is opened, the second balloon part (6) is placed above the positioning block (11), and the lower end of the second balloon part (6) is attracted with the upper surface of the positioning block (11) under the action of a magnetic field generated by the electromagnet winding;

step 2, ejecting the sealing body (5): exerting upward force on the sealing body (5), ejecting the sealing body (5) which is attracted on the stepped ring (602) by magnetic force, and enabling the inner space (403) of the first balloon part (402) to be communicated with the cavity (204) of the base (2);

and step 3, inflating: opening the gas pumping and inflating module and inflating the gas pumping and inflating module into the cavity (204), wherein the cavity (204) is communicated with the inner space (403) of the first balloon part (402) after the step 2 is completed, so that the inflated gas can enter the first balloon part (402) to inflate the balloon (4);

step 4, sealing and releasing the balloon (4): after the inflation is finished, the upward force applied to the sealing body (5) is removed, the electromagnet winding is closed, the sealing body (5) does not bear the upward force any more, the sealing body (5) is attracted with the stepped ring (602) again under the action of the magnetic force between the sealing body (5) and the stepped ring (602), the sealing of the inner space (403) of the balloon is realized, the magnetic field acting force between the second balloon part (6) and the positioning block (11) disappears due to the closing of the electromagnet winding, the attraction between the second balloon part and the positioning block is removed, then the rope winding and unwinding module is started to extend the rope (3), and the balloon (4) is lifted off under the self-gas buoyancy.

10. The method of automatically inflating and deflating a balloon according to claim 9, further comprising

And 5, retracting the balloon (4): starting the rope winding and unwinding module to shorten the rope (3), retracting the balloon (4), and enabling the second balloon part (6) to be gradually close to the upper surface of the positioning block (11);

step 6, positioning and attracting the second balloon part (6): the electromagnet winding is opened, the distance between the second balloon part (6) and the positioning block (11) is shorter and shorter along with the shortening of the rope (3), and when the distance is short enough, the second balloon part (6) is attracted with the positioning block (11) under the action of a magnetic field generated by the electromagnet winding;

and 7, ejecting the sealing body (5): repeating the operation of the step 2;

step 8, air extraction: when the gas pumping and inflating module is opened to pump air from the cavity (204), the inner space (403) of the first balloon portion (402) is communicated with the cavity (204) of the base (2), so that negative pressure is generated in the first balloon portion (402), the balloon (4) is deflated, and the initial working state is returned.

Technical Field

The invention relates to the field of balloons, in particular to an automatic balloon inflation and deflation device and method.

Background

The automatic inflation and deflation of the recyclable lift-off balloon mainly have the following problems to be solved: (1) how to position an inflation inlet on the balloon to realize deflation and inflation when the balloon is retracted; (2) under the scene that the balloon needs to be quickly recovered to deflate or quickly inflated to release, how to improve the speed and efficiency of inflation and deflation; (3) how to ensure the balloon to realize quick and reliable sealing while improving the inflation efficiency.

The invention provides an automatic balloon inflation and deflation device and method based on the problems, and the device and method can effectively solve the problems.

Disclosure of Invention

The first invention of the invention is to provide an automatic inflation and deflation device for a balloon, which can efficiently and accurately position an inflation inlet when the balloon is recovered, quickly and efficiently complete inflation and deflation when the balloon is inflated and deflated, and quickly and reliably seal the balloon after the balloon is inflated.

The second purpose of the invention is to provide an automatic balloon inflation and deflation method, which is used for providing a use and control method for the automatic balloon inflation and deflation device.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the technical scheme for realizing the first invention purpose is as follows: an automatic balloon inflation and deflation device comprises a first balloon portion, a second balloon portion, a sealing body, a positioning block, a base, a rope retraction module and a gas pumping and inflation module, wherein the first balloon portion can increase or shrink in volume along with inflation and deflation, the second balloon portion is arranged below the first balloon portion, a gas through hole is formed in the second balloon portion, a stepped ring with a hole diameter smaller than that of the gas through hole is arranged on the inner wall of the gas through hole, the sealing body is arranged above the stepped ring, the outer diameter of the sealing body is larger than the inner diameter of the stepped ring, the stepped ring and the sealing body are made of ferromagnetic materials and have at least one magnetic property, the positioning block is arranged on the base, a through hole is formed in the positioning block, a cavity is formed in the base, a through hole connected with the through hole of the positioning block is formed above the cavity, the second balloon portion, the upper end of the rope is connected with the lower portion of the balloon, the lower end of the rope is connected with the rope retracting module, the rope retracting module is installed in the cavity of the base, and the gas pumping and charging module is connected with the cavity and used for inflating and pumping the cavity and a space communicated with the cavity. The ladder ring and the sealing body are made of ferromagnetic materials, and at least one of the ladder ring and the sealing body is magnetic, so that the sealing body is automatically attracted with the ladder ring under the condition that the sealing body is not stressed by other forces, the sealing of the balloon is realized, namely, the sealing body serves as a switch of the balloon inflation inlet, the switch is in a normally closed state, and the sealing body can be opened under the condition that other upward acting forces are applied. And after the balloon is full of air, because the air pressure in the balloon is higher than the air pressure outside the balloon, the air pressure in the balloon can apply an extra pressing force to the sealing body, so that the sealing body is further attached to the stepped ring, and a better sealing effect is ensured.

Preferably, the telescopic positioning device further comprises an ejector rod and an ejector rod driving module, wherein the ejector rod is a telescopic rod, the telescopic rod is controlled by the ejector rod driving module to stretch, and the uppermost end of the ejector rod can penetrate through the through hole of the cavity and the through hole of the positioning block to reach the position above the positioning block during extension. This ejector pin solution is the first solution for ejecting the sealing body.

Preferably, the positioning block is provided with an electromagnet winding, the sealing body is a magnet, and the direction of magnetic induction lines of a magnetic field generated above the positioning block after the electromagnet winding is electrified is opposite to the direction of magnetic induction lines below the sealing body. The second scheme for ejecting the sealing body is that the sealing body is ejected by the magnetic repulsion force between the electromagnet winding and the sealing body, and the whole device is simpler and more concise because an ejector rod, a matched mechanical structure and a matched power structure are not needed.

Further, the gas pumping and charging device comprises a gas pump and a gas storage tank, wherein a gas outlet of the gas storage tank is connected with the cavity, a gas inlet of the gas pump is connected with the cavity, a gas outlet of the gas pump is connected with a gas inlet of the gas storage tank, and both the gas inlet and the gas outlet of the gas storage tank are provided with valves.

Furthermore, at least two restraining rods are arranged above the stepped ring, the restraining rods are cylindrical, the upper ends of the restraining rods are provided with limiting parts, and the cross sectional areas of the limiting parts are larger than that of the restraining rods; and the sealing body is provided with a through hole matched with the restraint rod. The limiting rod can limit the motion mode of the sealing body, so that the sealing body can only move along the axial direction of the limiting rod, the motion stability of the sealing body can be ensured by two or more limiting rods, the sealing body is always parallel to the step ring, and the limit part on the limiting rod can limit the movable stroke of the sealing body, so that the sealing body cannot be separated from the range of the magnetic action between the sealing body and the step ring.

Furthermore, a sealing washer is arranged between the sealing body and the stepped ring, and the upper surface of the positioning block is provided with the sealing washer. The function of the sealing gasket is to achieve a better gas tightness.

Preferably, an upper end of the rope is connected to a position right below the sealing body.

Furthermore, the device also comprises a power supply, a controller and an air pressure detection meter, wherein the power supply is connected with the controller, and the controller is connected with the air pressure detection meter, the air pumping and charging module, the electromagnet winding, the ejector rod driving module and the rope winding and unwinding module. The air pressure detection meter is installed inside the balloon and used for monitoring air pressure inside the balloon during inflation and avoiding the occurrence of an over-inflation phenomenon, the controller is used for controlling each module of the device, and the power supply is used for supplying power to the whole device.

The technical scheme for realizing the second invention purpose is as follows: the automatic balloon inflation and deflation method is based on the automatic balloon inflation and deflation device and comprises the following steps

Step 1, initializing a working state: opening the electromagnet winding, placing the second balloon part above the positioning block, and attracting the lower end of the second balloon part and the upper surface of the positioning block under the action of a magnetic field generated by the electromagnet winding;

step 2, ejecting the sealing body: applying upward force to the sealing body, and ejecting the sealing body which is attracted to the stepped ring by magnetic force, so that the internal space of the first balloon part is communicated with the cavity of the base;

and step 3, inflating: opening the gas pumping and inflating module and inflating the gas pumping and inflating module into the cavity, wherein the cavity is communicated with the inner space of the first balloon part after the step 2 is completed, so that the inflated gas can enter the first balloon part to inflate the balloon;

and 4, sealing and releasing the balloon: after the inflation is finished, removing the upward force applied to the sealing body, closing the electromagnet winding, enabling the sealing body to be attracted with the stepped ring again under the action of the magnetic force between the sealing body and the stepped ring because the sealing body does not bear the upward force any more, so as to realize the sealing of the inner space of the balloon, enabling the magnetic field acting force between the second balloon part and the positioning block to disappear due to the closing of the electromagnet winding, releasing the attraction between the second balloon part and the positioning block, starting the rope winding and unwinding module to enable the rope to extend, and realizing the lift-off of the balloon under the buoyancy of the gas of the balloon;

and 5, retracting the balloon: starting the rope retracting module to shorten the rope, and retracting the balloon to enable the second balloon part to gradually approach to the upper surface of the positioning block;

step 6, positioning and attracting the second balloon part: the electromagnet winding is opened, the distance between the second balloon part and the positioning block is shorter and shorter along with the shortening of the rope, and when the distance is short enough, the second balloon part is attracted with the positioning block under the action of a magnetic field generated by the electromagnet winding;

step 7, ejecting the sealing body: repeating the operation of the step 2;

step 8, air extraction: when the gas pumping and inflating module is opened to pump air from the cavity, the inner space of the first balloon part is communicated with the cavity of the base, so that negative pressure is generated in the first balloon part, the balloon is deflated, and the initial working state is returned.

The invention has the beneficial effects that:

(1) because the second balloon part and the positioning block are positioned in a magnetic type manner, and the inflation inlet is arranged at the central position of the bottom of the second balloon part, even if the balloon rotates around the axial lead of the second balloon part in the air, the positioning effect is not influenced, the inflation inlet can still be positioned efficiently and accurately when the balloon is recovered, and then the balloon is inflated and deflated through the inflation inlet;

(2) because the sealing body is adopted for sealing, the diameters of the sealing body and the inflation inlet can be designed as required, and when the diameter is larger, the inflation and deflation can be completed quickly and efficiently;

(3) because the ladder ring and the seal are ferromagnetic materials and have magnetism at least one, consequently the seal can automatic with the ladder ring actuation under the condition of not receiving other power, realize the sealed to the balloon, moreover after being full of gas in the balloon, because atmospheric pressure in the balloon is higher than outside the balloon, atmospheric pressure in the balloon can exert an extra packing force to the seal for the seal further with the ladder ring laminating, can realize very reliable sealed effect. In addition, after the external force for jacking the sealing body disappears, the sealing body can be quickly attracted with the step ring, and quick sealing is realized.

Drawings

Fig. 1 is a schematic sectional view of an automatic balloon inflation/deflation apparatus of the present invention, wherein the balloon is in a retracted state and the sealing body is opened.

Fig. 2 is a schematic cross-sectional view of the lower portion of the balloon of the automatic balloon inflation/deflation apparatus of the present invention, taken along the vertical direction, wherein the balloon is in a state after release of inflation and the sealing body is closed.

Fig. 3 is an exploded view of the automatic balloon inflation and deflation device of the present invention.

Fig. 4 is an exploded view of the lower half of the automatic balloon inflation and deflation device of the present invention.

Fig. 5 is an exploded view of the components at the balloon inflation port of the automatic inflation/deflation device for balloon according to the present invention.

Detailed Description

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

As shown in fig. 1-5, an automatic balloon inflation/deflation device comprises a first balloon portion 402, a second balloon portion 6, a sealing body 5, a positioning block 11, a base 2, a rope 3, a rope retraction module, and a gas pumping/inflation module, wherein the internal space 403 of the first balloon portion 402 can increase or contract in volume with inflation/deflation, the second balloon portion 6 is disposed below the first balloon portion 402 and comprises a base 601, a gas through hole 605 is disposed in the base 601, a stepped ring 602 with a smaller diameter than the gas through hole 605 is disposed on the inner wall of the gas through hole 605, the sealing body 5 is mounted above the stepped ring 602, the outer diameter of the sealing body is larger than the inner diameter of the stepped ring 602, the stepped ring 602 and the sealing body 5 are made of ferromagnetic material and at least one of which has magnetism, the positioning block 11 is mounted on the base 2 and is provided with a through hole 1101, a cavity 204 is disposed in, a through hole 202 connected with a through hole 1101 of the positioning block 11 is formed above the cavity 204, the second balloon portion 6 and the positioning block 11 are made of ferromagnetic materials, at least one of the second balloon portion and the positioning block 11 is provided with an electromagnet winding, the upper end of the rope 3 is connected with the lower portion of the balloon 4, the lower end of the rope is connected with the rope winding and unwinding module, the rope winding and unwinding module is installed in the cavity 204 of the base 2, and the gas pumping and charging module is connected with the cavity 204 and used for inflating and exhausting the cavity 204 and a space communicated with the cavity 204.

Preferably, the rope winding and unwinding module comprises a winding motor 13, a winding wheel 12 and a rope reel 18, wherein the winding motor 13 is installed in a winding motor groove 205 in the cavity 204, the winding wheel 12 is installed on a rotating shaft of the winding motor 13, the rope reel 18 is wound on the winding wheel 12, the free end part of the rope reel 18 is the rope 3, and a rope guide 206 is further arranged for restricting and guiding the moving range of the rope 3 in the cavity 204.

Preferably, the device further comprises a top rod 7 and a top rod driving module, wherein the top rod 7 is a telescopic rod, the telescopic rod is controlled by the top rod driving module to extend, and the uppermost end of the top rod 7 can penetrate through the through hole 202 of the cavity 204 and the through hole 1101 of the positioning block 11 to reach the upper part of the positioning block 11 during extension. This ejector pin solution is the first solution for ejecting the sealing body. Preferably, the ejector rod driving module adopts a ball screw driving scheme, and comprises an ejector rod motor 10, a coupler 17, a screw rod 9 and a constraint ring 8, wherein the ejector rod motor is installed in an ejector rod motor groove 1401 on the bottom plate 14 of the cavity 204, the coupler 17 is used for connecting the lower end of the screw rod 9 with a rotating shaft of the ejector rod motor 10, the ejector rod 7 is used as a screw rod pair to be matched with the screw rod 9, a sliding key 701 along a bus direction is arranged on the outer cylindrical surface of the ejector rod 7, the sliding key 701 is used for being matched with a sliding groove 801 on the constraint ring 8, the sliding groove 801 is arranged on a supporting part 802 of the constraint ring, the constraint ring 8 is fixed in a through hole 1101 of the positioning block 11, and the ejector rod 7 can only move axially but cannot rotate under the constraint of the sliding groove. The top bar 7 is also provided with a notch 702, the rope 3 can pass through the notch 702, and the rope 3 is not pressed when the sealing body 5 is pushed open. Besides the ball screw scheme, the ejector rod driving module can also adopt other common linear driving schemes such as a linear electric ejector rod, a linear motor drive and the like.

Preferably, the positioning block 11 is provided with an electromagnet winding, the sealing body 5 is a magnet, and the direction of magnetic induction lines of a magnetic field generated above the positioning block 11 after the electromagnet winding is electrified is opposite to the direction of magnetic induction lines below the sealing body 5. This is the second scheme for pushing open the seal 5, relies on the magnetic repulsion between electro-magnet winding and the seal 5 to push open the seal 5, and this scheme does not need ejector pin 7 and supporting mechanical structure and power structure, can make whole device simpler succinct.

Further, the gas pumping and charging device comprises a suction pump and a gas storage tank, wherein a gas outlet of the gas storage tank is connected with the cavity 204, a gas inlet of the suction pump is connected with the cavity 204, a gas outlet of the suction pump is connected with a gas inlet of the gas storage tank, and both the gas inlet and the gas outlet of the gas storage tank are provided with valves.

Further, at least two restraining rods 603 are arranged above the stepped ring 602, the restraining rods 603 are cylindrical, the upper ends of the restraining rods 603 are provided with limiting parts 604, and the cross-sectional areas of the limiting parts 604 are larger than that of the restraining rods 603; the sealing body 5 is provided with a through hole 504 matched with the constraint rod 603.

Further, a sealing washer 15 is arranged between the sealing body 5 and the stepped ring 602, and a sealing washer 16 is arranged on the upper surface of the positioning block 11. The function of the sealing gasket is to achieve a better gas tightness.

Preferably, the upper end of the rope 3 is connected to a short rod 502 directly below the sealing body 5, and the sealing body 5 includes a lower boss 501, a disc 503, the short rod 502 and a through hole 504.

Furthermore, the device also comprises a power supply, a controller and an air pressure detection meter, wherein the power supply is connected with the controller, and the controller is connected with the air pressure detection meter, the air pumping and charging module, the electromagnet winding, the ejector rod driving module and the rope winding and unwinding module. The controller can be a control chip commonly used in the industry, such as a DSP chip, an FPGA chip, an ARM chip, an X86 chip, and the like.

Preferably, the gas to be inflated into the balloon is helium or hydrogen.

An embodiment of the automatic balloon inflation and deflation method comprises

Step 1, initializing a working state: opening the electromagnet winding, placing the second balloon part 6 above the positioning block 11, and attracting the lower end of the second balloon part 6 with the upper surface of the positioning block 11 under the action of a magnetic field generated by the electromagnet winding;

step 2, ejecting the sealing body 5: applying upward force to the sealing body 5 to jack the sealing body 5 which is attracted to the stepped ring 602 by magnetic force, so that the internal space 403 of the first balloon portion 402 is communicated with the cavity 204 of the base 2; it should be noted that the force for ejecting the sealing body 5 in this step may be from the first solution for ejecting the sealing body 5, i.e. the ejector solution, or may be from the second solution for ejecting the sealing body 5, i.e. the magnetic repulsion solution;

and step 3, inflating: opening the gas pumping and inflating module and inflating the cavity 204, wherein the cavity 204 is communicated with the inner space 403 of the first balloon portion 402 after the step 2 is completed, so that the inflated gas can enter the first balloon portion 402 to inflate the balloon 4;

step 4, sealing and releasing of the balloon 4: after the inflation is finished, the upward force applied to the sealing body 5 is removed, the electromagnet winding is closed, the sealing body 5 does not bear the upward force any more, the sealing body 5 is attracted with the stepped ring 602 again under the action of the magnetic force between the sealing body 5 and the stepped ring 602 to seal the inner space 403 of the balloon, the magnetic field acting force between the second balloon part 6 and the positioning block 11 disappears due to the closing of the electromagnet winding, the attraction between the second balloon part and the positioning block 11 is removed, then the rope winding and unwinding module is started to extend the rope 3, and the balloon 4 is lifted up under the buoyancy of the gas of the balloon 4;

and 5, recovering the balloon 4: starting the rope winding and unwinding module to shorten the rope 3, and retracting the balloon 4 to enable the second balloon part 6 to gradually approach the upper surface of the positioning block 11;

step 6, positioning and attracting the second balloon part 6: the electromagnet winding is opened, the distance between the second balloon part 6 and the positioning block 11 is shorter and shorter along with the shortening of the rope 3, and when the distance is short enough, the second balloon part 6 is attracted with the positioning block 11 under the action of a magnetic field generated by the electromagnet winding;

step 7, ejecting the sealing body 5: repeating the operation of the step 2;

step 8, air extraction: when the gas pumping and inflating module is opened to pump the gas out of the cavity 204, the internal space 403 of the first balloon portion 402 and the cavity 204 of the base 2 are communicated with each other, so that a negative pressure is generated in the first balloon portion 402, and the balloon 4 is deflated to return to the initial operation state.