CN112157317B

CN112157317B - Aluminum profile finished product saw sizing device

Info

Publication number: CN112157317B
Application number: CN202011015072.5A
Authority: CN
Inventors: 洪珊珊
Original assignee: Sichuan Huayu Aluminum Co ltd
Current assignee: Sichuan Huayu Aluminum Co.,Ltd.
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-09-17
Anticipated expiration: 2040-09-24
Also published as: CN112157317A

Abstract

The invention relates to the technical field of aluminum materials, and discloses a sizing device for a finished aluminum profile saw, which comprises a shell, a cutting assembly and a transferring assembly, wherein a first sliding groove is formed in the inner wall of the shell, a first electromagnetic block is fixedly installed on the inner wall of the shell, a rotating box is rotated to drive a moving rod to move, the moving rod moves in the moving process, an opening-closing plate performs circular motion by taking a positioning nail as a circle center, meanwhile, the six opening-closing plates are closed in a shutter mode by the moving mode of the six opening-closing plates, meanwhile, the moving rod touches a trigger in the moving process to open an electronic air valve, the six opening-closing plates form a closed state, the electronic air valve is closed when the opening-closing plate is opened, the electronic air valve is opened when the opening-closing plate is closed, meanwhile, the volume of air in the rotating box is equal to the volume of air required by an angle for adjusting a cutter head to rotate once, the angle of the cutter head can be adjusted one degree at a time by rotating the rotating box, so that accurate angle adjustment is realized.

Description

Aluminum profile finished product saw sizing device

Technical Field

The invention relates to the technical field of aluminum materials, in particular to a finished aluminum profile sawing and sizing device.

Background

The aluminium product is made up by using aluminium and other alloy elements, and is made up by using aluminium as main metal element and adding some alloy elements to improve the performance of aluminium product through the processes of cold-bending, sawing, drilling, splicing and colouring.

At present, aluminum products are used in many places, most of the aluminum products are in the aspect of decoration of furniture such as doors and windows, the aluminum products are in a whole state when being produced, the length is changed or changed automatically according to customer requirements, in order to cut the aluminum products with the same length in batches, sawing sizes are made, the sawing sizes are cut according to computer programming, the length cutting can be carried out only on one assembly line, when the aluminum products with angles are to be cut, the cutting assembly line needs to be replaced again for batch cutting, the operation is very troublesome, the engineering and the efficiency are delayed, and therefore the aluminum product sawing size device is provided.

Disclosure of Invention

In order to realize the purposes of directly cutting in batches and improving the efficiency after the cutting is well adjusted according to the required angle, the invention provides the following technical scheme: the utility model provides an aluminium alloy finished product saw scale device, includes shell, cutting assembly and transfer the subassembly, first spout has been seted up to the inner wall of shell, the inner wall fixed mounting of shell has first electromagnetic block, the inner wall fixed mounting of shell has the inflation piece, the top fixed mounting of inflation piece has the gas-supply pipe, the inner wall of first spout and cutting assembly's right side swing joint, the top of gas-supply pipe and the bottom fixed connection of transferring the subassembly.

As optimization, the cutting assembly includes the tool bit, the bottom fixed mounting of tool bit has the balancing weight, the bottom fixed mounting of balancing weight has the bull stick, the outer wall swing joint of bull stick has the second electromagnetism piece, the bottom fixed mounting of bull stick has the montant, the outer wall fixed mounting of montant has first atmospheric pressure telescopic link.

As optimization, the subassembly of transferring includes the gasbag, the right side fixed mounting of gasbag has second atmospheric pressure telescopic link, the bottom fixed mounting of gasbag has transition gas box, and the inner wall left side fixed mounting of transition gas box has swing bearing, swing bearing's outer wall swing joint has the baffle, the left side fixed mounting of transition gas box has forty-five degrees gas box, the left side fixed mounting of gasbag has thirty degrees gas boxes, the box is changeed to the left side swing joint of gasbag, change the inner wall of box and seted up the second spout, the inner wall swing joint of second spout has the carriage release lever, the carriage release lever is kept away from the one end fixed mounting of second spout and is gone into the box, the inner wall fixed mounting of interior box has the location nail, the outer wall swing joint of location nail has the opening plate.

As the optimization, the outer wall cover of bull stick is equipped with firm box, and the bull stick is through firm box and first electromagnetic block swing joint, and the one end swing joint that the bull stick was kept away from to first electromagnetic block has the gyro wheel, and the outer wall of gyro wheel and the inner wall swing joint of first spout, make at shell pivoted in-process, receive centrifugal force's influence, first electromagnetic block and the separation of second electromagnetic block, carry out cutting work, the condition that the tool bit removed can be given to the gyro wheel, and when cutting work stops, first electromagnetic block inhales with the second electromagnetic block mutually, can withdraw the tool bit, the security is improved, and firm box provides bull stick pivoted condition, with this drive tool bit rotation regulation cutting angle.

As optimization, the quantity of first atmospheric pressure telescopic link is four, and per two first atmospheric pressure telescopic links are a set of, and two sets of first atmospheric pressure telescopic link all use the perpendicular central line symmetric distribution of montant, and the one end that the montant was kept away from to first atmospheric pressure telescopic link and the inner wall swing joint of shell for first atmospheric pressure telescopic link can be when carrying out angle regulation cutting work stabilize the montant, and unstable when preventing to cut leads to the required angle of unable accurate cutting.

Preferably, the number of the air bags and the corresponding structures of the air bags is two, and the two air bags and the corresponding structures of the air bags are symmetrically distributed on the vertical center line of the vertical rod, so that the two air bags are matched with each other, and when the angle of the cutter head needs to be adjusted, the air pressure of one air bag can be correspondingly reduced, so that the vertical rod is pushed, and the angle of the cutter head is adjusted.

Preferably, the number of the baffles is eight, every two baffles are in one group, the bottom end of one baffle in each group of baffles is movably connected with the top end of the other baffle, the right side of the push block is a hollow pipe, the diameter of the hollow pipe is smaller than the length of the group of baffles, so that when a thirty-degree gas box or a forty-five-degree gas box is pressed, the push block is pushed to extrude the baffles, gas in the gas bag is flushed into the thirty-degree gas box or the forty-five-degree gas box, the gas volume in the thirty-degree gas box and the forty-five-degree gas box is set to be the gas volume required to be reduced for adjusting the thirty-degree or forty-five-degree angle of the cutter head, and the gas volume in the rotary box is equal to the gas volume required to be reduced by the gas bag for adjusting the one-degree rotation angle of the.

As optimization, the number of the push blocks and the structures of the push blocks is four, every two push blocks form a group, one group of the push blocks are located in the inner cavity of the forty-five-degree air box, and the other group of the push blocks are located in the inner cavity of the thirty-five-degree air box, so that the thirty-degree air box and the forty-five-degree air box are identical in internal structure and operation mode, and the angle adjusting operation is convenient and quick.

As optimization, the rotating box is movably connected with the air bag through an electronic air valve, and one end of the positioning nail close to the moving rod is provided with a trigger, the trigger is connected with the electronic air valve by signals, the number of the opening plates and the structures of the opening plates is six, and the six split plates and the structures of the split plates are uniformly distributed by taking the circle center of the rotary box as the center, so that when the rotating box is rotated, the moving rod is driven to move, and in the moving process of the moving rod, because one side of the opening plate is movably connected with the inner box through the positioning nail, when the movable rod pulls the opening plate, the opening plate does circular motion by taking the positioning nail as the center of a circle, meanwhile, the six open-close plates are closed in a shutter mode in the movement mode, and meanwhile, in the moving process of the moving rod, and the trigger is touched to open the electronic air valve, and at the moment, the six opening and closing plates form a closed state.

The invention has the beneficial effects that: the aluminum profile finished product sawing sizing device is matched with a vertical rod for use through the air bags, so that when a cutting angle of thirty degrees left needs to be adjusted, the right side pushing block can move towards the right side baffle plate by pressing the right side thirty-degree air box, the right side baffle plate is pushed away, at the moment, the two air bags are in an equal constant pressure state, the right side baffle plate is pushed away, gas in the right side air bag enters the right side thirty-degree air box, the air pressure value of the right side air bag is smaller than that of a taxi air bag, a second air pressure telescopic rod on the left side is extruded rightwards, the vertical rod is inclined leftwards, and the gas volume required to be reduced by adjusting the thirty-degree or forty-five-degree angle of the cutter head is set as the gas volume required to be adjusted, so that the inclination angle of the vertical rod is thirty degrees left, and likewise thirty degrees or forty-five degrees leftwards inclined rightwards can realize that the cutter head is inclined for angle cutting by pressing the thirty-degree air boxes or the forty-five-degree air boxes on both sides;

if the angle needs to be accurately adjusted, the rotating box can be rotated to drive the moving rod to move, and in the moving process of the moving rod, because one side of the opening plate is movably connected with the inner box through the positioning nail, when the movable rod pulls the opening plate, the opening plate does circular motion by taking the positioning nail as the center of a circle, meanwhile, the six open-close plates are closed in a shutter mode in the movement mode, and meanwhile, in the moving process of the moving rod, the trigger is touched to open the electronic air valve, at the moment, the six open-close plates form a closed state, so that when the opening plate is opened, the electronic air valve is closed, and when the opening plate is closed, the electronic air valve is opened, and simultaneously the volume of the gas in the rotating box is equal to the volume of the gas reduced by the gas bag required by adjusting the cutter head to rotate for one degree, the angle of the cutter head can be adjusted one degree at a time by rotating the rotating box, so that accurate angle adjustment is realized.

Drawings

FIG. 1 is a schematic side cross-sectional view of a portion of the structure of the present invention;

FIG. 2 is a schematic front view of the structure of the present invention;

FIG. 3 is a schematic front sectional view of the structure of the rotary box of the present invention;

FIG. 4 is a schematic side cross-sectional view of the deployment assembly of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 6 is a side view of the cutting assembly of the present invention;

FIG. 7 is a perspective view of the structure of the rotary case of the present invention;

FIG. 8 is a perspective view of the present invention; .

In the figure: 1. a housing; 2. a first chute; 3. a first electromagnetic block; 4. an inflation block; 5. a gas delivery pipe; 6. a cutting assembly; 601. a cutter head; 602. a balancing weight; 603. a rotating rod; 604. a second electromagnetic block; 605. a vertical rod; 606. a first pneumatic telescoping rod; 7. moving the component; 701. an air bag; 702. a second pneumatic telescopic rod; 703. a transition gas box; 704. a baffle plate; 705. a swing bearing; 706. a forty-five degree gas box; 707. a push block; 708. a thirty degree gas box; 709. box turning; 710. a second chute; 711. a travel bar; 712. an inner case; 713. positioning nails; 714. a plywood.

Detailed Description

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 given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, a sizing device for a finished aluminum profile saw comprises a shell 1, a cutting assembly 6 and a transferring assembly 7, wherein a first chute 2 is formed in the inner wall of the shell 1, a first electromagnetic block 3 is fixedly mounted on the inner wall of the shell 1, an inflation block 4 is fixedly mounted on the inner wall of the shell 1, a gas pipe 5 is fixedly mounted at the top end of the inflation block 4, the inner wall of the first chute 2 is movably connected with the right side of the cutting assembly 6, and the top end of the gas pipe 5 is fixedly connected with the bottom end of the transferring assembly 7.

Referring to fig. 6, the cutting assembly 6 includes a cutter head 601, a weight block 602 is fixedly mounted at a bottom end of the cutter head 601, a rotating rod 603 is fixedly mounted at a bottom end of the weight block 602, a second electromagnetic block 604 is movably connected to an outer wall of the rotating rod 603, a vertical rod 605 is fixedly mounted at a bottom end of the rotating rod 603, and a first pneumatic telescopic rod 606 is fixedly mounted on an outer wall of the vertical rod 605.

Referring to fig. 4, the maneuvering assembly 7 includes an air bag 701, a second pneumatic telescopic rod 702 is fixedly installed on the right side of the air bag 701, a transition air box 703 is fixedly installed at the bottom end of the air bag 701, a swing bearing 705 is fixedly installed on the left side of the inner wall of the transition air box 703, a baffle 704 is movably connected to the outer wall of the swing bearing 705, a forty-five degree air box 706 is fixedly installed on the left side of the transition air box 703, a thirty degree air box 708 is fixedly installed on the left side of the air bag 701, a rotating box 709 is movably connected to the left side of the air bag 701, a second chute 710 is formed in the inner wall of the rotating box 709, a moving rod 711 is movably connected to the inner wall of the second chute 710, an inner box 712 is fixedly installed at one end of the moving rod 711 far away from the second chute 710, a positioning nail 713 is fixedly installed on the inner wall of the inner box 712, and an opening plate 714 is movably connected to the outer wall of the positioning nail 713.

Referring to fig. 1 and 6, a stabilizing box is sleeved on an outer wall of the rotating rod 603, the rotating rod 603 is movably connected to the first electromagnetic block 3 through the stabilizing box, a roller is movably connected to one end of the first electromagnetic block 3 away from the rotating rod 603, and an outer wall of the roller is movably connected to an inner wall of the first chute 2, so that in the rotating process of the housing 1, under the influence of centrifugal force, the first electromagnetic block 3 is separated from the second electromagnetic block 604 to perform cutting operation, the roller can provide a condition for the movement of the cutter head 601, and when the cutting operation is stopped, the first electromagnetic block 3 and the second electromagnetic block 604 attract each other to withdraw the cutter head 601, thereby improving safety, and the stabilizing box provides a condition for the rotation of the rotating rod 603, so as to drive the cutter head 601 to rotate to adjust a cutting angle.

Referring to fig. 1 and 6, the number of the first pneumatic telescopic rods 606 is four, and every two first pneumatic telescopic rods 606 are in a group, two groups of the first pneumatic telescopic rods 606 are symmetrically distributed around the vertical center line of the vertical rod 605, and one end of the first pneumatic telescopic rod 606 away from the vertical rod 605 is movably connected with the inner wall of the housing 1, so that the vertical rod 605 can be stabilized when the first pneumatic telescopic rod 606 performs angle adjustment cutting operation, and the condition that the cutting cannot be performed at an accurate cutting angle due to instability is prevented.

Referring to fig. 4, the number of the

airbags

701 and 701 is two, and the

airbags

701 and 701 are symmetrically distributed around the vertical center line of the vertical rod 605, so that the two airbags 701 are matched with each other, and when the angle of the tool bit 601 needs to be adjusted, the air pressure of one airbag 701 can be reduced correspondingly, so as to push the vertical rod 605 to drive the angle of the tool bit 601 to be adjusted.

Referring to fig. 4, the number of the baffles 704 is eight, every two baffles 704 are in one group, the bottom end of one baffle 704 in each group of baffles 704 is movably connected with the top end of the other baffle 704, the right side of the push block 707 is a hollow tube, and the diameter of the hollow tube is smaller than the length of the group of baffles 704, so that when the thirty-degree air box 708 or the forty-five degree air box 706 is pressed, the push block 707 is pushed to press the baffles 704, the gas in the air bag 701 is flushed into the thirty-degree air box 708 or the forty-five degree air box 706, the gas volumes in the thirty-degree air box 708 and the forty-five degree air box 706 are set to be the gas volume required to adjust the thirty-degree angle or the forty-five-degree angle of the cutter head 601, and the gas volume in the rotary box 709 is equal to the gas volume required to decrease by the air bag 701 for adjusting the angle of one degree of rotation of the cutter head 601, thereby the angle of the cutter head 601 can be quickly adjusted.

Referring to fig. 4, the number of the push blocks 707 and the structures of the push blocks 707 is four, and each two push blocks 707 are in one group, one group of the push blocks 707 is located in the inner cavity of the forty-five degree air box 706, and the other group of the push blocks 707 is located in the inner cavity of the thirty-five degree air box 708, so that the thirty-degree air box 708 and the forty-five degree air box 706 have the same internal structure and the same operation mode, and the angle adjustment operation is convenient and quick.

Referring to fig. 4, the rotating box 709 is movably connected to the airbag 701 through the electronic air valve, and one end of the positioning pin 713 near the moving rod 711 is provided with a trigger, and the trigger is in signal connection with the electronic air valve, the number of the opening plate 714 and the structure thereof is six, and the structures of the six opening plates 714 and the structures thereof 714 are uniformly distributed around the center of the rotating box 709, so that when the rotating box 709 is rotated, the moving rod 711 is driven to move, and in the moving process of the moving rod 711, because one side of the opening plate 714 is movably connected to the inner box 712 through the positioning pin 713, when the moving rod 711 pulls the opening plate 714, the opening plate 714 makes a circular motion around the positioning pin 713, and meanwhile, in the moving mode of the six opening plates 714, the six opening plates are closed in a shutter mode, and meanwhile, the moving rod 711 touches the trigger during the moving process, so that the electronic air valve is opened, at this time, the six opening plates 714 are closed.

When the cutting tool is used, please refer to fig. 3-6, the air bags 701 and the vertical rod 605 are used in cooperation, so that when a cutting angle of thirty degrees left needs to be adjusted, the right pushing block 707 moves towards the right baffle 704 by pressing the right thirty-degree air box 708, the right baffle 704 is pushed away by pushing the right baffle 704, at this time, the two air bags 701 are in an equal constant pressure state, the right baffle 704 is pushed away, gas in the right air bag 701 enters the right thirty-degree air box 708, the gas pressure value of the right air bag 701 is smaller than that of the taxi air bag 701, the left second gas pressure telescopic rod 702 is squeezed towards the right, the vertical rod 605 is tilted towards the left, and the vertical rod 605 is tilted towards the left because the gas volumes in the thirty-degree air box 708 and the forty-five-degree air box 706 are set to be gas volumes required to adjust the angle of thirty degrees or forty-five degrees of the cutting tool bit 601, the tilting angle of the vertical rod 605 towards the left is thirty degrees, and the tilting angle towards the right or the thirty degrees or the tilting towards the right can be adjusted by pressing both thirty degrees and forty degrees of the two sides The cartridge 708 or the forty-five degree air cartridge 706 enables the tool tip 601 to be tilted for an angular cut.

If the angle needs to be adjusted accurately, the rotating box 709 can be rotated, the rotating box 709 drives the moving rod 711 to move, and in the moving process of the moving rod 711, because one side of the opening plate 714 is movably connected with the inner box 712 through the positioning nail 713, when the moving rod 711 pulls the opening plate 714, the opening plate 714 makes a circular motion with the positioning nail 713 as a circle center, and simultaneously, the six opening plates 714 all make the six opening plates 714 close in a shutter manner by the moving manner, meanwhile, in the moving process of the moving rod 711, the trigger is touched to open the electronic gas valve, at this time, the six opening plates 714 form a closed state, so that when the opening plate 714 is opened, the electronic gas valve is closed, when the opening plate 714 is closed, the electronic gas valve is opened, and simultaneously, the gas volume in the rotating box 709 is equal to the gas volume reduced by the gas bag 701 required for adjusting the angle of the cutter head 601 rotating once, so that the angle of the cutter head 601 can be adjusted once by rotating the rotating box 709, and the precise angle adjustment is realized.

In summary, the aluminum profile finished product sawing and sizing device is used by matching the air bags 701 with the vertical rod 605, so that when a cutting angle of thirty degrees on the left needs to be adjusted, the right pushing block 707 moves towards the right baffle 704 by pressing the right thirty-degree air box 708, the right baffle 704 is pushed away, at this time, the two air bags 701 are in an equal constant pressure state, the right baffle 704 is pushed away, the air in the right air bag 701 enters the right thirty-degree air box 708, the air pressure value of the right air bag 701 is smaller than that of the left air bag 701, the left second air pressure telescopic rod 702 is squeezed towards the right, the vertical rod 605 is tilted towards the left, and because the air volumes in the thirty-degree air box 708 and the forty-five-degree air box 706 are set to be the air volumes required to adjust the thirty degrees of the cutter head 601 or the air volume required to decrease of the forty-five degree angle, the tilting angle of the vertical rod 605 is thirty degrees inclined towards the left, and similarly, thirty degrees inclined towards the right or forty-five degrees towards the left can be adjusted by pressing both thirty degrees on the two sides The gas box 708 or the forty-five degree gas box 706 enables the tool tip 601 to be tilted for an angular cut.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides an aluminium alloy finished product saw scale device, includes shell (1), cutting component (6) and moves subassembly (7), its characterized in that: the inner wall of the shell (1) is provided with a first sliding groove (2), a first electromagnetic block (3) is fixedly mounted on the inner wall of the shell (1), an inflation block (4) is fixedly mounted on the inner wall of the shell (1), a gas pipe (5) is fixedly mounted at the top end of the inflation block (4), the inner wall of the first sliding groove (2) is movably connected with two sides of the cutting assembly (6), and the top end of the gas pipe (5) is fixedly connected with the bottom end of the moving assembly (7);

the transfer component (7) comprises an air bag (701), a second air pressure telescopic rod (702) is fixedly mounted on the inner side of the air bag (701), a transition air box (703) is fixedly mounted at the bottom end of the air bag (701), a swing bearing (705) is fixedly mounted on the outer side of the inner wall of the transition air box (703), a baffle (704) is movably connected to the outer wall of the swing bearing (705), a forty-five-degree air box (706) is fixedly mounted on the left side of the transition air box (703), a thirty-degree air box (708) is fixedly mounted on the outer side of the air bag (701), a rotating box (709) is movably connected to the outer side of the air bag (701), a second chute (710) is formed in the inner wall of the rotating box (709), a moving rod (711) is movably connected to the inner wall of the second chute (710), and an inner box (712) is fixedly mounted at one end, far away from the second chute (710), of the moving rod (711), the inner wall of the inner box (712) is fixedly provided with a positioning nail (713), and the outer wall of the positioning nail (713) is movably connected with a split plate (714).

2. The aluminum profile finished product sawing sizing device as claimed in claim 1, characterized in that: cutting assembly (6) include tool bit (601), the bottom fixed mounting of tool bit (601) has balancing weight (602), the bottom fixed mounting of balancing weight (602) has bull stick (603), the outer wall swing joint of bull stick (603) has second electromagnetism piece (604), the bottom fixed mounting of bull stick (603) has montant (605), the outer wall fixed mounting of montant (605) has first atmospheric pressure telescopic link (606).

3. The aluminum profile finished product sawing sizing device as claimed in claim 2, characterized in that: the outer wall cover of bull stick (603) is equipped with firm box, and bull stick (603) through firm box and first electromagnetism piece (3) swing joint, and the one end swing joint that bull stick (603) was kept away from in first electromagnetism piece (3) has the gyro wheel, and the outer wall of gyro wheel and the inner wall swing joint of first spout (2).

4. The aluminum profile finished product sawing sizing device as claimed in claim 2, characterized in that: the number of the first air pressure telescopic rods (606) is four, every two first air pressure telescopic rods (606) are in one group, the two groups of first air pressure telescopic rods (606) are symmetrically distributed on the vertical center line of the vertical rod (605), and one end, away from the vertical rod (605), of each first air pressure telescopic rod (606) is movably connected with the inner wall of the shell (1).

5. The aluminum profile finished product sawing sizing device as claimed in claim 1, characterized in that: the number of the air bags (701) and the structures of the air bags (701) is two, and the two air bags (701) and the structures of the air bags (701) are symmetrically distributed by the vertical center line of the vertical rod (605).

6. The aluminum profile finished product sawing sizing device as claimed in claim 1, characterized in that: the number of the push blocks (707) and the structures of the push blocks (707) is four, every two push blocks (707) form a group, one group of the push blocks (707) is positioned in the inner cavity of the forty-five-degree air box (706), and the other group of the push blocks (707) is positioned in the inner cavity of the thirty-degree air box (708).

7. The aluminum profile finished product sawing sizing device as claimed in claim 6, characterized in that: the number of the baffle plates (704) is eight, every two baffle plates (704) form a group, the bottom end of one baffle plate (704) in each group of baffle plates (704) is movably connected with the top end of the other baffle plate (704), the inner side of the push block (707) is a hollow pipe, and the diameter of the hollow pipe is smaller than the length of one group of baffle plates (704).

8. The aluminum profile finished product sawing sizing device as claimed in claim 1, characterized in that: the rotary box (709) is movably connected with the air bag (701) through an electronic air valve, a trigger is arranged at one end, close to the moving rod (711), of the positioning nail (713), the trigger is in signal connection with the electronic air valve, the number of the opening plate (714) and the structure to which the opening plate (714) belongs is six, and the six opening plates (714) and the structure to which the opening plate (714) belongs are uniformly distributed by taking the circle center of the rotary box (709) as the center.