Aluminum alloy formwork dismantling device

Abstract

The invention relates to the technical field of aluminum alloy formwork dismantling equipment, and discloses an aluminum alloy formwork dismantling device which at least comprises two pneumatic tension devices, each pneumatic tension device comprises a piston plate arranged in a pipe body, the middle of one side of each piston plate is fixedly connected with a pull shaft, and one end of each pull shaft is fixedly connected with a linkage block; a clamping shaft is fixedly installed on one side of the linkage block, and an L-shaped plate is arranged on one side of the pipe body. The clamping shaft is inserted into the pin groove of the edge rib of the aluminum alloy formwork to be dismantled, the interior of the pipe body is inflated remotely from one side of the aluminum alloy formwork to be dismantled, after the L-shaped plate abuts against the adjacent aluminum alloy formwork, the piston plate moves relative to the pipe body, the aluminum alloy formwork to be dismantled is pulled to be separated from the wall face, and then the aluminum alloy formwork to be dismantled is dismantled. Compared with an existing rod type aluminum die dismantling tool, the working intensity of operators is relieved, synchronous pulling and dismantling can be conducted on the two sides of aluminum alloy at the same time, and the working efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of aluminum alloy formwork removal equipment, and particularly to an aluminum alloy formwork removal device. Background Art

[0002] An aluminum alloy formwork is a building formwork system mainly made of aluminum alloy. It provides support and forming functions for concrete pouring through factory prefabrication and on-site assembly. The surface of the aluminum alloy formwork is flat, the joints are tight, the flatness and perpendicularity of the concrete surface after pouring are excellent, and the formwork can be recycled and reused, which conforms to the concept of green buildings. Therefore, it is widely used in modern building construction.

[0003] After the construction is completed, the aluminum alloy formwork needs to be removed. When the existing aluminum alloy formwork is removed, a crowbar-type formwork removal tool is generally used for removal, that is, the front end of the crowbar is inserted into the edge rib pin hole of the aluminum alloy formwork, and the formwork is pried by using the lever principle, so that the aluminum alloy formwork is separated from the wall surface.

[0004] Since the mass of the aluminum alloy formwork is about 20-25 kilograms per square meter, when the existing aluminum alloy formwork is removed, the operator needs to hold the crowbar tool and perform the removal operation on the front side of the aluminum alloy formwork. And when removing, it is necessary to pry the two sides of the aluminum alloy formwork in sequence. This results in a high working intensity for the operator, which easily leads to low efficiency. Moreover, when working alone, there is a risk that the aluminum alloy formwork may fall and cause harm to the operator. Summary of the Invention

[0005] This application provides an aluminum alloy formwork removal device, which has the advantages of high safety, high efficiency and low working intensity when a single operator removes the aluminum alloy formwork, and is used to solve the problems of potential safety hazards, low efficiency and high working intensity when the existing aluminum alloy formwork needs to be removed by an operator holding a crowbar tool.

[0006] To achieve the above object, this application adopts the following technical solution: An aluminum alloy formwork removal device includes at least two pneumatic tension devices. The pneumatic tension device includes a tube body. A piston plate is movably arranged in the piston cavity inside the tube body. A pull shaft is fixedly connected to the middle of one side of the piston plate. One end of the pull shaft is fixedly installed with a linkage block located outside the tube body. A clamping shaft is fixedly installed on one side of the linkage block. An L-shaped plate is provided on one side of the tube body.

[0007] The clamping shaft is inserted into the pin slot of the edge rib of the aluminum alloy formwork to be removed, and air is remotely inflated into the inside of the tube body on one side of the aluminum alloy formwork to be removed. After the L-shaped plate abuts against the adjacent aluminum alloy formwork, the piston plate moves relative to the tube body and the L-shaped plate, pulling the aluminum alloy formwork to be removed away from the wall surface.

[0008] Furthermore, cover plates are fixedly installed at both ends of the tube body, and a sealing rubber ring is provided between one of the cover plates and the pull shaft. Seals are formed at both ends of the tube body through the detachable cover plates, which facilitates the installation and removal of the piston plate inside the tube body. At the same time, the internal piston cavity of the tube body is kept sealed, so that the aluminum alloy formwork can be pulled out by means of inflation and pressurization, facilitating the removal of the aluminum alloy formwork.

[0009] Furthermore, air vents are respectively provided at the top and bottom of the tube body. The air vents are located on the side of the pneumatic tension device close to the clamping shaft. A guide air pipe is connected between the air vents at the top of the two tube bodies. An air delivery pipe is connected to the air vent at the bottom of one of the tube bodies. The end of the air delivery pipe away from the tube body is connected to an inflation device. An air release device is connected to the air vent at the bottom of the other tube body. The internal piston cavities of the two tube bodies are communicated through the guide air pipe. The inflation device is used to remotely inflate and pressurize the interiors of the two tube bodies simultaneously through the air delivery pipe, so that the pistons inside the two tube bodies move synchronously relative to the tube bodies, thereby pulling out the aluminum alloy formwork. At the same time, it can avoid the situation that the aluminum alloy formwork topples after separation and causes harm to the operators.

[0010] Furthermore, the air release device includes a pipe component fixedly installed at the air vent at the bottom of the other tube body. A valve block is fixedly installed at the bottom end of the pipe component, and a guide air groove is formed in the middle of the valve block. A sliding plate is movably installed inside the pipe component. A number of air guide holes are formed in the sliding plate and are distributed in a circular array. The number of the air guide holes is not less than two. A self-sealing spring is provided between the top of the sliding plate and the inner top wall of the pipe component. A push shaft is fixedly installed in the middle of the bottom end of the air guide hole. A gap for air circulation is reserved between the outer side of the push shaft and the inner wall of the guide air groove. The bottom end of the push shaft extends below the valve block and is fixedly installed with a pressing block. A sealing ring for blocking the guide air groove is provided at the bottom of the sliding plate. After the aluminum alloy formwork is pulled out, the interior of the tube body is deflated by pushing the pressing block to drive the sliding plate to move away from the valve block, facilitating subsequent reuse.

[0011] Furthermore, a rectangular connecting shaft is fixedly connected to one side of the tube body, and the L-shaped plate is movably sleeved on the rectangular connecting shaft.

[0012] Furthermore, one end of the rectangular coupling away from the tube body is fixedly connected to a cylindrical coupling, and one end of the cylindrical coupling away from the rectangular coupling is fixedly installed with a baffle, and a passive rotating plate is installed on the side of the L-shaped plate away from the tube body through a plane bearing, and the passive rotating plate is movably mounted on the outside of the rectangular coupling and the cylindrical coupling, and a first spring movably mounted on the outside of the rectangular coupling and the cylindrical coupling is provided between the passive rotating plate and the baffle. After the clamping shaft is inserted into the pin groove on the side rib of the aluminum alloy formwork to be removed, the elastic force of the first spring is utilized to make the L-shaped plate fit onto the side wall of the adjacent aluminum alloy formwork side rib to form a clamped state, so that when it is convenient for single person to use, the pneumatic pulling device is fixed to the aluminum alloy formwork to be removed in turn, and after the aluminum alloy formwork to be removed is pulled out, the elastic force of the first spring is utilized to provide a clamping force, so that the aluminum alloy formwork to be removed is not easy to tip over after being separated from the wall.

[0013] Furthermore, the rectangular coupling and the column coupling are integrally formed, so that the overall strength of the rectangular coupling and the column coupling is sufficiently large, and when the L-shaped plate is moved to the outside of the column coupling, the L-shaped plate can be flipped, and the pull shaft, the linkage block and the clamping shaft can be rotated relative to the tube body as a whole, and the positions of the clamping shaft and the L-shaped plate relative to the tube body are adjusted to cope with the situation where a certain aluminum alloy template is located in a complex environment and the L-shaped plate cannot be normally used to abut against the adjacent aluminum alloy template or wall. For example, when one side of the aluminum alloy template is a ninety-degree wall, the L-shaped plate is controlled to rotate half a circle relative to the tube body, and the pull shaft, the linkage block and the clamping shaft are rotated half a circle relative to the tube body, so that the L-shaped plate is also located in the aluminum alloy template and will not be blocked by the wall on one side. At the same time, the L-shaped plate is fixed at one end of the L-shaped plate by artificial fixing or setting a fixing point, so that the aluminum alloy template can continue to be dismantled.

[0014] Furthermore, two limit shafts are fixedly installed on one side of the tube body, and the two limit shafts are symmetrically arranged on both sides of the rectangular coupling, and the lengths of the rectangular coupling and the two limit shafts are the same. By adding two limit shafts, the elastic force of the first spring enables the L-shaped plate to move to the outside of the rectangular coupling, and the L-shaped plate and the tube body can maintain a state of synchronous movement. After the interior of the tube body is inflated and pressurized, the tube body and the L-shaped plate can first move relative to the clamping shaft and the aluminum alloy template to be removed, until one end of the L-shaped plate contacts the adjacent aluminum alloy template or wall, and then the piston plate moves relative to the tube body, so that the pull shaft drives the linkage block and the clamping shaft pulls the aluminum alloy template to move and separate from the wall.

[0015] Furthermore, an anti-skid pad is provided on the side of the L-shaped plate facing the tube body. The design of the anti-skid pad, combined with the elastic force of the first spring, enables the side of the L-shaped plate to fit onto the side rib side wall of the aluminum alloy template adjacent to the aluminum alloy template to be removed. After the aluminum alloy template to be removed is separated from the wall, the aluminum alloy template is not easy to tip over.

[0016] Further, a pressing block is movably sleeved on the drawing shaft, and a second spring is arranged between the pressing block and one of the cover plates. The second spring is movably sleeved on the outer side of the drawing shaft. After the clamping shaft is inserted into the pin slot on the side rib of the aluminum alloy formwork to be demolished, under the elastic force of the second spring, the pressing block fits against one side of the aluminum alloy formwork side rib, and cooperates with the clamping shaft at one end of the drawing shaft to form a clamping state, further improving the fixing effect of the pneumatic tension device. At the same time, when the L-shaped plate cannot be used to cooperate with the pipe body for clamping, it plays a role in fixing the pneumatic tension device, so that a single person can install multiple pneumatic tension devices at different parts of the aluminum alloy to be demolished.

[0017] The beneficial effects of the present invention are as follows: 1. By arranging at least two pneumatic tension devices and fixing them to both sides of the aluminum alloy formwork at the same time, the clamping shaft is inserted into the pin slot of the side rib of the aluminum alloy formwork to be demolished, and air is remotely inflated into the inside of the pipe body on one side of the aluminum alloy formwork to be demolished. After the L-shaped plate abuts against the adjacent aluminum alloy formwork, the piston plate moves relative to the pipe body, pulling the aluminum alloy formwork to be demolished away from the wall. Compared with the existing rod-type aluminum formwork demolition tool, it reduces the labor intensity of the operators and can simultaneously perform synchronous pulling and demolition on both sides of the aluminum alloy, improving the work efficiency.

[0018] 2. By inflating the inside of the pipe body remotely on one side of the aluminum alloy formwork to be demolished through the inflation device to control the demolition of the aluminum alloy formwork, when the aluminum alloy formwork topples after being separated from the wall, it will not cause the problem of personal injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings: Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is Figure 1 a schematic structural diagram of one of the pneumatic tension devices in Figure 3 It is Figure 2 a schematic internal structure diagram of the pipe body in Figure 4 It is Figure 1 a partial enlarged structural diagram of part A in Figure 5 It is Figure 4 a schematic structural diagram of the air release device in Figure 6 It is Figure 2Top view.

[0020] In the figure: 1. Pneumatic tension device; 101. Pipe body; 102. Piston plate; 103. Pulling shaft; 104. Linking block; 105. Clamping shaft; 106. Cover plate; 2. Air guide pipe; 3. Air delivery pipe; 4. Air release device; 401. Pipe component; 402. Valve block; 403. Air guide groove; 404. Sliding plate; 405. Air guide hole; 406. Self-sealing spring; 407. Pushing shaft; 408. Pressing block; 5. Rectangular connecting shaft; 6. Limiting shaft; 7. Cylindrical connecting shaft; 8. Baffle; 9. L-shaped plate; 10. Passive rotating plate; 11. First spring; 12. Pressing block; 13. Second spring. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment, such as Figures 1-3 , an aluminum alloy formwork removal device, at least including two pneumatic tension devices 1. The pneumatic tension device 1 includes a pipe body 101. A piston plate 102 is movably arranged in the piston cavity inside the pipe body 101. The middle part of one side of the piston plate 102 is fixedly connected with a pulling shaft 103. One end of the pulling shaft 103 extends out of the pneumatic tension device 1 and is fixedly connected with a linking block 104. A clamping shaft 105 is threadedly installed on one side of the linking block 104. When removing the aluminum alloy formwork, the clamping shaft 105 is clamped into the pin slot of the side rib of the aluminum alloy formwork to be removed. And the detachable design of the clamping shaft 105 facilitates adapting to the pin slots of different side ribs of the aluminum alloy formwork. Cover plates 106 are fixedly installed at both ends of the pipe body 101, and a sealing rubber ring is arranged between one of the cover plates 106 and the pulling shaft 103 to ensure the sealing of the piston cavity in the pipe body 101.

[0023] Please refer to Figure 1 , Figures 3-4 , air vents are respectively arranged at the top and bottom of the pipe body 101. The air vents are located on the side of the pneumatic tension device 1 close to the clamping shaft 105. And the air vents at the top of the two pipe bodies 101 are connected by an air guide pipe 2. The air vent at the bottom of one of the pipe bodies 101 is connected with an air delivery pipe 3. The end of the air delivery pipe 3 far away from the pipe body 101 is connected with an inflation device. The inflation device includes existing inflation devices such as a bicycle pump and an air pump. The inside of the pipe body 101 can be inflated and pressurized through the inflation device to push the piston plate 102 to move relative to the pipe body 101. The air vent at the bottom of the other pipe body 101 is connected with an air release device 4.

[0024] Please refer to Figures 4-5 , the air release device 4 includes a pipe component 401 fixedly installed at the ventilation port at the bottom of another pipe body 101. A valve block 402 is fixedly installed at the bottom end of the pipe component 401, and a gas guiding groove 403 is formed in the middle of the valve block 402. A sliding plate 404 is movably installed inside the pipe component 401. A number of air guiding holes 405 distributed in a circular array are formed in the sliding plate 404. The number of the air guiding holes 405 is not less than two. A self-sealing spring 406 is arranged between the top of the sliding plate 404 and the inner top wall of the pipe component 401. A push shaft 407 is fixedly installed in the middle of the bottom end of the air guiding hole 405. A gap for air circulation is reserved between the outer side of the push shaft 407 and the inner wall of the gas guiding groove 403. The bottom end of the push shaft 407 extends below the valve block 402 and is fixedly installed with a pressing block 408. A sealing ring for blocking the gas guiding groove 403 is arranged at the bottom of the sliding plate 404. By pressing the pressing block 408, the push shaft 407 and the sliding plate 404 are pushed to move relative to the pipe component 401, so that the sealing ring at the bottom of the sliding plate 404 is separated from the valve block 402, and the inside of the pipe component 401 is communicated with the outside, thereby controlling the piston chambers of the two pipe bodies 101 to be communicated with the outside, so as to release air through the air release device 4.

[0025] Please refer to Figures 2-3 and Figure 6 , one side of the pipe body 101 is fixedly connected with a rectangular connecting shaft 5 and two limiting shafts 6. The two limiting shafts 6 are symmetrically arranged on both sides of the rectangular connecting shaft 5, and the length values of the rectangular connecting shaft 5 and the two limiting shafts 6 are the same. The end of the rectangular connecting shaft 5 far away from the pipe body 101 is fixedly connected with a cylindrical connecting shaft 7. The rectangular connecting shaft 5 and the cylindrical connecting shaft 7 are integrally formed, so that the overall strength of the rectangular connecting shaft 5 and the cylindrical connecting shaft 7 is improved.

[0026] The cross-sectional width value of the rectangular connecting shaft 5 is not less than the outer diameter value of the cylindrical connecting shaft 7. A baffle 8 is fixedly installed at the end of the cylindrical connecting shaft 7 far away from the rectangular connecting shaft 5. An L-shaped plate 9 is movably sleeved on the rectangular connecting shaft 5. A passive rotating plate 10 is installed on the side of the L-shaped plate 9 far away from the pipe body 101 through a plain bearing. The passive rotating plate 10 is movably sleeved outside the rectangular connecting shaft 5 and the cylindrical connecting shaft 7, and a first spring 11 movably sleeved outside the rectangular connecting shaft 5 and the cylindrical connecting shaft 7 is arranged between the passive rotating plate 10 and the baffle 8. A through groove adapted to the rectangular connecting shaft 5 and the two limiting shafts 6 is formed in the L-shaped plate 9.

[0027] By controlling the L-shaped plate 9 to move away from the pipe body 101, the pipe body 101 is located at the position of the aluminum alloy formwork to be demolished, while the L-shaped plate 9 is located at the adjacent aluminum alloy formwork, facilitating the insertion of the clamping shaft 105 into the pin slot of the aluminum alloy formwork to be demolished. Then, under the elastic force of the first spring 11, the L-shaped plate 9 moves onto the rectangular connecting shaft 5 and the two limiting shafts 6. The inside of the pipe body 101 is inflated and pressurized through the air delivery pipe 3, pushing the piston plate 102 to move relative to the pipe body 101. Due to the limiting effect of the pin slot on the side rib of the aluminum alloy formwork to be demolished on the clamping shaft 105, the pipe body 101 will first drive the rectangular connecting shaft 5, the two limiting shafts 6, and the L-shaped plate 9 to move as a whole relative to the piston plate 102. Until one end of the L-shaped plate 9 abuts against the adjacent aluminum alloy formwork, continuous inflation and pressurization cause the piston plate 102 to move relative to the pipe body 101, driving the pulling shaft 103, the linkage block 104, and the clamping shaft 105 to move relative to the pipe body 101, thereby pulling out the aluminum alloy formwork.

[0028] A non-slip pad is provided on the side of the L-shaped plate 9 facing the pipe body 101. The non-slip pad is made of rubber material with a high coefficient of friction, so that under the elastic force of the first spring 11, the non-slip pad on the L-shaped plate 9 only fits closely on the side rib side wall of one aluminum alloy formwork adjacent to the aluminum alloy formwork to be demolished.

[0029] A pressing block 12 is movably sleeved on the pulling shaft 103. A second spring 13 is provided between the pressing block 12 and one of the cover plates 106. The second spring 13 is movably sleeved on the outside of the pulling shaft 103. After the clamping shaft 105 is inserted into the pin slot on the side rib of the aluminum alloy formwork, under the elastic force of the second spring 13, the pressing block 12 fits on the side rib of the aluminum alloy formwork, forming a clamping state in cooperation with the clamping shaft 105, and further enabling the pneumatic tension device 1 to be stably fixed on one side rib of the aluminum alloy formwork, so as to fix another pneumatic tension device 1 to the other side rib of the aluminum alloy formwork.

[0030] In use, first install one of the pneumatic tension devices 1 at the bottom of the side rib of the aluminum alloy formwork to be demolished. That is, first control the movement of the L-shaped plate 9 relative to the pipe body 101 so that the clamping shaft 105 is inserted into the pin slot at the bottom end of the side rib of the aluminum alloy formwork to be demolished. After loosening the L-shaped plate 9, due to the elastic force of the first spring 11, the L-shaped plate 9 moves towards the pipe body 101 and fits against the side rib surface of the adjacent aluminum alloy formwork. At the same time, the elastic force of the second spring 13 causes the pressing block 12 to fit against the front surface of the side rib of the aluminum alloy formwork, so that the pneumatic tension device 1 is kept in a state of being clamped at the side ribs of the two aluminum alloy formworks. Then install another pneumatic tension device 1 at the bottom end of the other side rib of the aluminum alloy formwork to be demolished according to the above steps. The operator uses the air inflation equipment well air delivery pipe 3 to inflate and pressurize the inside of one of the pipe bodies 101 on one side of the aluminum alloy formwork to be demolished. Through the connection function of the air guide pipe 2, the inside of the two pipe bodies 101 is simultaneously inflated and pressurized, pushing the piston plates 102 in the two pipe bodies 101 to move synchronously relative to the pipe bodies 101, so as to pull the aluminum alloy formwork to be demolished away from the wall. And due to the elastic force of the first spring 11, the L-shaped plate 9 only adheres to the side wall of the side rib of the adjacent aluminum alloy formwork, which can prevent the pulled-out aluminum alloy formwork from tipping over. Then the operator uses the air release device 4 to release the air. After removing the pneumatic tension device 1, the aluminum alloy formwork can be demolished.

[0031] When one side of the aluminum alloy formwork is a 90-degree wall, the pneumatic tension device 1 can be installed at the upper and lower ends on the side of the aluminum alloy formwork away from the 90-degree wall for demolition. Therefore, the length of the air guide pipe 2 should be reserved to be not less than the height of the aluminum alloy formwork. For aluminum alloy formworks with a relatively high height, when only two first springs 11 are installed at the bottom end of the aluminum alloy formwork for demolition, it may cause the aluminum alloy formwork not to be completely separated. At this time, the number of pneumatic tension devices 1 can be set to four and installed at the four corners of the aluminum alloy formwork to be demolished for demolition.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aluminum alloy formwork removal device, characterized in that, There are at least two pneumatic tension devices (1). The pneumatic tension device (1) includes a pipe body (101). A piston plate (102) is movably arranged in a piston cavity inside the pipe body (101). A tension shaft (103) is fixedly connected to the middle of one side of the piston plate (102). One end of the tension shaft (103) is fixedly installed with a linkage block (104) located outside the pipe body (101). A clamping shaft (105) is fixedly installed on one side of the linkage block (104). An L-shaped plate (9) is arranged on one side of the pipe body (101). The clamping shaft (105) is inserted into a pin slot on the side rib of the aluminum alloy formwork to be demolished, and air is remotely inflated into the interior of the pipe body (101) on one side of the aluminum alloy formwork to be demolished. After the L-shaped plate (9) abuts against the adjacent aluminum alloy formwork, the piston plate (102) moves relative to the pipe body (101) and the L-shaped plate (9), pulling the aluminum alloy formwork to be demolished away from the wall surface.

2. The aluminum alloy formwork removal device according to claim 1, characterized in that, Cover plates (106) are fixedly installed at both ends of the pipe body (101), and a sealing rubber ring is arranged between one of the cover plates (106) and the tension shaft (103).

3. The aluminum alloy formwork removal device according to claim 1, characterized in that, Vent holes are respectively arranged at the top and bottom of the pipe body (101). The vent holes are located on one side of the pneumatic tension device (1) close to the clamping shaft (105). A guide air pipe (2) is connected between the vent holes at the top of the two pipe bodies (101). The vent hole at the bottom of one of the pipe bodies (101) is connected to an air supply pipe (3). The end of the air supply pipe (3) far away from the pipe body (101) is connected to an inflation device. The vent hole at the bottom of the other pipe body (101) is connected to a deflation device (4).

4. The aluminum alloy formwork removal device according to claim 3, characterized in that, The deflation device (4) includes a pipe component (401) fixedly installed at the vent hole at the bottom of the other pipe body (101). A valve block (402) is fixedly installed at the bottom end of the pipe component (401). A guide air groove (403) is opened in the middle of the valve block (402). A sliding plate (404) is movably installed inside the pipe component (401). A number of air guide holes (405) distributed in a circumferential array are opened on the sliding plate (404). The number of the air guide holes (405) is not less than two. A self-sealing spring (406) is arranged between the top of the sliding plate (404) and the inner top wall of the pipe component (401). A push shaft (407) is fixedly installed in the middle of the bottom end of the air guide hole (405). A gap for air circulation is reserved between the outer side of the push shaft (407) and the inner wall of the guide air groove (403). The bottom end of the push shaft (407) extends below the valve block (402) and is fixedly installed with a pressing block (408). A sealing ring for blocking the guide air groove (403) is arranged at the bottom of the sliding plate (404).

5. The aluminum alloy formwork removal device according to claim 1, characterized in that, A rectangular connecting shaft (5) is fixedly connected to one side of the pipe body (101). The L-shaped plate (9) is movably sleeved on the rectangular connecting shaft (5).

6. The aluminum alloy formwork removal device according to claim 5, characterized in that, One end of the rectangular coupling shaft (5) away from the pipe body (101) is fixedly connected to a cylindrical coupling shaft (7). One end of the cylindrical coupling shaft (7) away from the rectangular coupling shaft (5) is fixedly installed with a baffle (8). On the side of the L-shaped plate (9) away from the pipe body (101), a passive rotating plate (10) is installed through a plain bearing. The passive rotating plate (10) is movably sleeved on the outer sides of the rectangular coupling shaft (5) and the cylindrical coupling shaft (7), and a first spring (11) movably sleeved on the outer sides of the rectangular coupling shaft (5) and the cylindrical coupling shaft (7) is arranged between the passive rotating plate (10) and the baffle (8).

7. The aluminum alloy formwork removal device according to claim 5, characterized in that, The rectangular coupling shaft (5) and the cylindrical coupling shaft (7) are integrally formed.

8. The aluminum alloy formwork removal device according to claim 5, characterized in that, Two limiting shafts (6) are fixedly installed on one side of the pipe body (101). The two limiting shafts (6) are symmetrically arranged on both sides of the rectangular coupling shaft (5), and the rectangular coupling shaft (5) and the two limiting shafts (6) have the same length value.

9. The aluminum alloy formwork removal device according to claim 1, characterized in that, The side of the L-shaped plate (9) facing the pipe body (101) is provided with an anti-slip pad.

10. The aluminum alloy formwork removal device according to claim 1, characterized in that, A pressing block (12) is movably sleeved on the pull shaft (103). A second spring (13) is arranged between the pressing block (12) and one of the cover plates (106). The second spring (13) is movably sleeved on the outer side of the pull shaft (103).

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