Box formwork dismantling device and construction method

Abstract

The application discloses a box mold dismantling device, which comprises a movable frame body and an air pressure mold dismantling assembly arranged on the top of the frame body. The air pressure mold dismantling assembly comprises a rotating assembly arranged on the frame body and capable of being driven to turn towards a preset air injection hole of a box mold to be dismantled, and a gas conveying pipe arranged on the rotating assembly and used for conveying high-pressure gas flow to the preset air injection hole of the box mold to be dismantled. An air outlet of the gas conveying pipe is arranged on a free end of the rotating assembly, and the air outlet of the gas conveying pipe is tightly attached to the preset air injection hole of the box mold to be dismantled after the free end of the rotating assembly turns. The application further discloses a construction method of the box mold dismantling device. The box mold dismantling device provided by the application utilizes an air compressor to generate air pressure, and sends the air flow into the back of a holed box mold through a gas conveying pipe. The box mold is separated from concrete through air flow impact. After the box mold is separated, the box mold falls into a buffer shuttle groove and rolls in the shuttle groove to a ground personnel taking-off platform, so that the box mold can be conveniently and safely dismantled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of industrial building construction, in particular to a box formwork dismantling device and construction method. BACKGROUND

[0002] In recent years, in order to pursue greater building space in industrial buildings, the multi-rib floor structure has been widely used. Compared with the conventional cast-in-place concrete floor slab, the multi-rib floor structure uses more box formworks, and the box formwork with flanges has higher strength than the box formwork without flanges, which can effectively avoid the deformation of the membrane shell due to extrusion during concrete pouring, thereby seriously affecting the forming quality of the multi-rib beam.

[0003] At present, the box formwork is mostly dismantled by traditional manual method using a reinforcing bar stick to pry and remove. However, this method may cause quality hidden troubles of the multi-rib beam bottom due to knocking damage. Moreover, the box formwork flange is prised and extruded multiple times during dismantling, which accelerates the deformation and damage of the box formwork, and reduces the turnover frequency of the box formwork. After the box formwork is removed, it falls from a high place, which may cause damage to the membrane shell. Manual formwork removal at a high place also has certain safety hazards, and may cause safety accidents such as falling from a high place. SUMMARY

[0004] Therefore, the present application aims to provide a box formwork dismantling device and construction method to avoid high-altitude work and reduce safety risks, and to solve the damage to the concrete member and the box formwork during prying and removal of the box formwork, and to improve the quality of the concrete member and the reuse rate of the box formwork.

[0005] The box formwork dismantling device provided by the present application comprises a movable frame body and a pneumatic formwork removal assembly arranged on the top of the frame body. The pneumatic formwork removal assembly comprises a rotating assembly arranged on the frame body and capable of being driven to turn towards a preset air injection hole of a box formwork to be removed, and a gas delivery pipe arranged on the rotating assembly and used for delivering high-pressure gas flow to the preset air injection hole of the box formwork to be removed. The gas outlet of the gas delivery pipe is arranged at the free end of the rotating assembly, and is tightly attached to the preset air injection hole of the box formwork to be removed after the free end of the rotating assembly is turned.

[0006] Further, the rotating assembly comprises a rotating body in V-shaped structure. The open end of the rotating body is connected to the frame body in rotation as the fixed end of the rotating assembly, and the closed end of the rotating body is turned as the free end of the rotating assembly. The gas outlet of the gas delivery pipe is arranged at the closed end of the rotating body.

[0007] Further, the open end of the rotating body is further provided with a rotating sleeve ring, and is connected to the frame body in rotation through the rotating sleeve ring. The frame body is further provided with a sleeve ring positioning clamp outside the rotating sleeve ring and used for adjusting and locking the position of the rotating body.

[0008] Further, the closed end of the rotating body is provided with a soft rubber pad at the air outlet of the air conveying pipe, which communicates with the air outlet of the air conveying pipe and seamlessly docks the air outlet of the air conveying pipe with the pre-set air injection hole on the mold to be disassembled.

[0009] Further, a pull rope assembly for driving the rotating assembly to flip is further included, the pull rope assembly comprising a pull rope and a pull rope rotating ring arranged on the frame body and located between the two rotating rings, the fixed end of the pull rope being connected and fixed with the closed end of the rotating body, the movable end of the pull rope being located at the bottom of the frame body after winding around the pull rope rotating ring; the movable end of the pull rope is provided with a foot pedal for pulling the pull rope, and the bottom of the frame body is provided with a pull rope guide tube for limiting the swing of the pull rope.

[0010] Further, an infrared positioner for accurately positioning the pre-set air injection hole of the mold to be disassembled is further arranged at the bottom of the frame body, and the center point of the infrared positioner and the center point of the pre-set air injection hole of the mold to be disassembled are located on the same vertical line.

[0011] Further, the frame body comprises a frame body and a moving pulley arranged at the bottom of the frame body and used for moving the frame body, and a height fine adjuster is further arranged between the moving pulley and the bottom of the frame body, and the height position of the rotating assembly at the top of the frame body is adjusted through the height fine adjuster.

[0012] Further, a buffer shuttle slot for conveying the disassembled mold is arranged in the frame body, and a stop rod for stopping the disassembled mold is arranged at the lowest part of the buffer shuttle slot.

[0013] Further, an air compressor for providing high-pressure air flow for the air pressure mold disassembly assembly is further included, and the air inlet of the air conveying pipe communicates with the air outlet of the air compressor.

[0014] A construction method of a mold disassembly device, which is suitable for the mold disassembly device described above, comprises the following steps:

[0015] S1. The mold disassembly device is erected and accepted, and after no error is found, the mold disassembly device is debugged;

[0016] S2. The mold disassembly device is moved to below the mold to be disassembled, and the center point of the infrared positioner and the center point of the pre-set air injection hole of the mold to be disassembled are located on the same vertical line by using the infrared positioner;

[0017] S3. The pull rope is pulled, so that the rotating body is driven to rotate upward, the soft rubber pad is tightly attached to the pre-set air injection hole of the mold to be disassembled, and then the air compressor is started to convey high-pressure air flow for mold disassembly;

[0018] S4. The disassembled mold is recycled by using the buffer shuttle slot;

[0019] S5. Move the box mold dismounting device to below other box molds to be dismounted and repeat steps S2-S4 until all box molds are dismounted.

[0020] In summary, the present application contains at least one of the following beneficial effects:

[0021] 1. Instead of the traditional pry dismounting box mold method, the method can effectively avoid pry damage to the bottom of the cast ribbed beam, and ensure the quality of the formed concrete member;

[0022] 2. Greatly reduces the extrusion of the PP box mold when prying, reduces damage to the PP box mold, and improves the PP box mold reuse rate;

[0023] 3. The grid shuttle slot solves the problem of difficult transfer of the box mold at a high place, and can safely and quickly transfer the box mold to the ground;

[0024] 4. The operator only needs to work on the ground, avoiding the risk of working at a high place. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application will be further described in detail below in combination with the drawings.

[0026] Figure 1 Figure 1 is a structural diagram of the box mold dismounting device in the present application;

[0027] Figure legend: 1-air compressor; 2-gas conveying pipe; 3-soft rubber pad; 4-frame; 5-moving pulley; 6-height fine adjuster; 7-buffer shuttle slot; 8-stop rod; 9-infrared positioner; 10-rotating body; 11-rotating collar; 12-collar positioning clamp; 13-pull rope rotating ring; 14-pull rope; 15-pull rope guide pipe; 16-foot pedal. DETAILED DESCRIPTION

[0028] The box mold dismantling device provided by the application comprises a movable frame body 4 and a gas pressure mold dismantling assembly arranged on the top of the frame body 4, the gas pressure mold dismantling assembly comprises a rotating assembly arranged on the frame body 4 and capable of being driven to turn towards a preset gas injection hole of a box mold to be dismantled and a gas delivery pipe 2 arranged on the rotating assembly and used for delivering a high-pressure gas flow to the preset gas injection hole of the box mold to be dismantled, and the gas outlet of the gas delivery pipe 2 is arranged at the free end of the rotating assembly and tightly contacts the preset gas injection hole of the box mold to be dismantled after the free end of the rotating assembly turns.

[0029] In the embodiment, the rotating assembly comprises a rotating body 10 in a V-shaped structure, the open end of the rotating body 10 is rotationally connected with the frame body 4 as the fixed end of the rotating assembly, the closed end of the rotating body 10 is turned as the free end of the rotating assembly, and the gas outlet of the gas delivery pipe 2 is arranged at the closed end of the rotating body 10. Figure 1 As shown in the figure, the rotating body 10 in a V-shaped structure can be turned as a whole, so that the gas outlet of the gas delivery pipe 2 can tightly contact the preset gas injection hole of the box mold to be dismantled.

[0030] In the embodiment, the open end of the rotating body 10 is further provided with a rotating sleeve 11 and rotationally connected with the frame body 4 through the rotating sleeve 11, and the frame body 4 is further provided with a sleeve positioning clamp 12 outside the rotating sleeve 11 and used for adjusting and locking the position of the rotating body 10.

[0031] In this embodiment, the closed end of the rotating body 10 is provided with a soft rubber pad 3 at the air outlet of the air conveying pipe 2, which communicates with the air outlet of the air conveying pipe 2 and makes the air outlet of the air conveying pipe 2 seamlessly dock with the pre-set air injection hole on the box mold to be disassembled; by providing the soft rubber pad 3 at the air outlet of the air conveying pipe 2, the air outlet of the air conveying pipe 2 can be more closely attached to the pre-set air injection hole on the box mold to be disassembled, while preventing high-pressure airflow from leaking at this point, which can cause insufficient air pressure to cause the box mold to fall off.

[0032] In this embodiment, it also includes a pull rope assembly for driving the rotating assembly to flip, the pull rope assembly includes a pull rope 14 and a pull rope rotating ring 13 arranged on the frame body 4 and located between the two rotating collars 11, the fixed end of the pull rope 14 is connected and fixed with the closed end of the rotating body 10, and the movable end of the pull rope 14 is located at the bottom of the frame body 4 after winding through the pull rope rotating ring 13; the movable end of the pull rope 14 is provided with a foot pedal 16 for pulling the pull rope, and the bottom of the frame body 4 is provided with a pull rope guide pipe 15 for limiting the swing of the pull rope 14; wherein the pull rope 14 mainly drives the rotating body 10 to rotate upward, realizing that the soft rubber pad 3 closely attaches to the pre-set air injection hole on the box mold to be disassembled, and the pull rope rotating ring 13 is arranged to facilitate pulling the pull rope 14, the pull rope guide pipe 15 can limit the swing of the free end of the pull rope 14, and the foot pedal 16 is used for the operator to step down to drive the rotating body 10 to rotate, so that the operator only needs to work on the ground, avoiding the risk of working at a high place.

[0033] In this embodiment, it also includes an infrared positioner 9 arranged at the bottom of the frame body for accurately positioning the pre-set air injection hole of the box mold to be disassembled, and the center point of the infrared positioner 9 and the center point of the pre-set air injection hole of the box mold to be disassembled are located on the same vertical line.

[0034] In this embodiment, the frame body 4 includes a frame body and a moving pulley 5 arranged at the bottom of the frame body and used for moving the frame body, and a height fine adjuster 6 is further arranged between the moving pulley 5 and the bottom of the frame body and adjusts the height position of the rotating assembly at the top of the frame body through the height fine adjuster 6; the moving pulley 5 makes the box mold disassembly device more convenient to transfer and can be easily moved to a designated position, and the height fine adjuster 6 can fine-tune the overall height of the disassembly device, so that the rotating assembly is closer to the pre-set air injection hole of the box mold to be disassembled, facilitating subsequent mold disassembly.

[0035] In the embodiment, the frame body is provided with a buffer shuttle groove 7 for conveying the removed box mold, and the frame body is provided with a stop rod 8 for intercepting the removed box mold at the lowest part of the buffer shuttle groove; wherein the buffer shuttle groove 7 is a grid shuttle groove, mainly used for conveying the removed box mold, and the buffer shuttle groove 7 is divided into three sections, the first section has an inclination of 45° to facilitate the rolling of the box mold, the second section has an inclination of 30° to gradually weaken the rolling of the box mold, and the third section is horizontal to further slow down the box mold; when the box mold does not stop moving in the horizontal section, the stop rod 8 will play a blocking role; the buffer shuttle groove 7 solves the problem of difficult transfer of the box mold at a high place, and can safely and quickly transfer the box mold to the ground.

[0036] In the embodiment, an air compressor 1 is further included for providing high-pressure airflow for the air pressure mold removal assembly, and the air inlet of the gas conveying pipe 2 is in communication with the air outlet of the air compressor 1.

[0037] A construction method of a box mold removal device, suitable for the box mold removal device described above, comprising the following steps:

[0038] S1. The box mold removal device is erected and accepted, and after no error is found, the box mold removal device is debugged; after the inner support frame body and the formwork are removed, the box mold removal device is erected in the floor, and the box mold removal device needs to pass the safety technology acceptance; the debugging of the box mold removal device means that the height position of the rotating body 10 is adjusted up and down by using the height fine adjuster 6 to make the rotating body 10 relatively horizontal when the soft rubber pad 3 on the rotating body 10 presses against the bottom of the box mold, so as to vertically connect the soft rubber pad 3 with the pre-set air injection hole on the box mold to be removed, which is beneficial to the airflow conveying and avoids side leakage;

[0039] S2. Move the box mold removal device to below the box mold to be removed, and use the infrared positioner 9 to make the center point of the infrared positioner and the center point of the pre-set air injection hole on the box mold to be removed located on the same vertical line; first, move the box mold removal device to below the box mold to be removed, then turn on the infrared positioner 9, and accurately move the removal device according to the infrared projection point of the top plate to make the projection point align with the pre-set air injection hole on the box mold to be removed, so that the soft rubber pad 3 on the rotating body 10 rotates upward and aligns with the pre-set air injection hole on the box mold to be removed, and then lock the lock buckle on the moving pulley 5 to fix the whole device and prevent it from sliding;

[0040] S3. Pull the pull rope 14, so that the pull rope 14 drives the rotating body 10 to rotate upward, realizing that the soft rubber pad 3 is tightly attached to the preset air injection hole of the box mold to be removed, and then starting the air compressor 1 to deliver high-pressure airflow for box mold removal; the operator presses the foot pedal 16 downward with his foot, so that the pull rope 14 drives the rotating body 10 to rotate upward, realizing that the soft rubber pad 3 is tightly attached to the preset air injection hole of the box mold to be removed; then start the air compressor 1, the high-pressure airflow along the air pipe 2, the soft rubber pad 3, and the preset air injection hole of the box mold to be removed reaches the contact surface of the box mold and the concrete, and the larger airflow fills the contact surface in an instant, and the shock wave of the airflow drives the box mold away from the concrete surface;

[0041] S4. Use the buffer shuttle groove 7 to recycle the removed box mold; the box mold separated from the concrete surface falls into the buffer shuttle groove 7, the buffer shuttle groove 7 is divided into three sections, the first section has an inclination of 45° to facilitate the rolling of the box mold, the second section has an inclination of 30° to gradually weaken the rolling of the box mold, and the third section is horizontal to further slow down the box mold; if the box mold does not stop rolling in the horizontal section, the stop rod 8 will play an intercepting role, and then the personnel will operate to stack the box molds one by one, so that the box molds at high places are safely transferred to the ground.

[0042] S5. Move the box mold removal device to the bottom of other box molds to be removed, and repeat steps S2-S4 until all box molds are removed.

[0043] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A box form demolition apparatus characterised in that: The box mold dismantling device comprises a movable frame body and a gas pressure mold dismantling assembly arranged on the top of the frame body, the gas pressure mold dismantling assembly comprises a rotating assembly arranged on the frame body and capable of being driven to turn towards a preset gas injection hole of a box mold to be dismantled, and a gas conveying pipe arranged on the rotating assembly and used for conveying high-pressure gas flow to the preset gas injection hole of the box mold to be dismantled, and an outlet of the gas conveying pipe is arranged at a free end of the rotating assembly and tightly contacts the preset gas injection hole of the box mold to be dismantled when the outlet of the gas conveying pipe turns with the free end of the rotating assembly. The rotating assembly comprises a rotating body in a V-shaped structure, an open end of the rotating body is rotationally connected with the frame body as a fixed end of the rotating assembly, and a closed end of the rotating body is turned as a free end of the rotating assembly, and the outlet of the gas conveying pipe is arranged at the closed end of the rotating body. The open end of the rotating body is further provided with a rotating sleeve ring and rotationally connected with the frame body through the rotating sleeve ring, and the frame body is further provided with a sleeve ring positioning clamp outside the rotating sleeve ring and used for adjusting and locking the position of the rotating body. The closed end of the rotating body is further provided with a soft rubber pad at the outlet of the gas conveying pipe, the soft rubber pad is in communication with the outlet of the gas conveying pipe and makes the outlet of the gas conveying pipe seamlessly dock with the preset gas injection hole of the box mold to be dismantled. The box mold dismantling device further comprises a pull rope assembly used for driving the rotating assembly to turn, the pull rope assembly comprises a pull rope and a pull rope rotating ring arranged on the frame body and located between the two rotating sleeve rings, a fixed end of the pull rope is connected with the closed end of the rotating body, and a movable end of the pull rope is located at the bottom of the frame body after passing through the pull rope rotating ring; the movable end of the pull rope is provided with a foot pedal used for pulling the pull rope, and the bottom of the frame body is provided with a pull rope guide pipe used for limiting the swing of the pull rope. The frame body comprises a frame body and a moving pulley arranged at the bottom of the frame body and used for moving the frame body, and a height fine adjuster is further arranged between the moving pulley and the bottom of the frame body and used for adjusting the height position of the rotating assembly at the top of the frame body. The frame body is further provided with a blocking rod used for blocking the box mold to be dismantled at the lowest position of the buffer shuttle groove.

2. The box form demolition apparatus of claim 1, wherein: The box mold dismantling device further comprises an infrared positioner arranged at the bottom of the frame body and used for accurately positioning the preset gas injection hole of the box mold to be dismantled, and the center point of the infrared positioner and the center point of the preset gas injection hole of the box mold to be dismantled are located on the same vertical line.

3. The box form demolition apparatus of claim 1, wherein: The box mold dismantling device further comprises an air compressor used for providing high-pressure gas flow for the gas pressure mold dismantling assembly, and an inlet of the gas conveying pipe is in communication with an outlet of the air compressor.

4. A construction method of a box form removal device characterized by: The box mold dismantling device is suitable for the box mold dismantling device according to any one of claims 1 to 3, and comprises the following steps: S1. The box mold dismantling device is set up and accepted, and after no error is found, the box mold dismantling device is debugged; S2. The box mold dismantling device is moved to below the box mold to be dismantled, and the center point of the infrared positioner and the center point of the preset gas injection hole of the box mold to be dismantled are located on the same vertical line by using the infrared positioner. S3. Pull the pull rope, so that the pull rope drives the rotating body to rotate upward, realizing that the soft rubber pad closely contacts the preset air injection hole of the box mold to be disassembled, and then starting the air compressor to deliver high-pressure airflow for box mold disassembly; S4. Recycling the disassembled box mold by using the buffer shuttle groove; S5. Moving the box mold disassembly device to the lower side of other box molds to be disassembled, and repeating steps S2-S4 until all box molds are disassembled.

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