A building frame dismantling device and its dismantling method

Abstract

This invention discloses a building frame demolition device and method, relating to the field of building frame demolition technology. To improve safety during demolition, the device specifically includes a base and a support section. The support section includes: a channel plate fixed to the outer top wall of the base; and two triangular plates movably connected to the inner wall of the channel plate. The demolition method includes the following steps: adjusting the height of the pin according to the demolition height of the building frame using a threaded post; inserting the through rod into the inner wall of the retaining ring using the elastic force of a spring to limit the vertical position of the pin. This invention, by providing a support base, can support the bottom of the demolished building frame, preventing the frame from falling directly and causing danger. By utilizing the weight of the building frame itself to drive the inclined plate to tighten the inclined top block, the two clamping plates can clamp and fix the side walls of the building frame.

Description

Technical Field

[0001] This invention relates to the field of building frame demolition technology, and in particular to a building frame demolition device and method. Background Technology

[0002] In existing technologies, the dismantling of building frames, such as steel trusses or supporting beams, usually requires the use of wrenches or corresponding breaking equipment. During the dismantling process, the building frame will fall after it is unrestrained. The falling building frame will pose a significant safety hazard to the construction workers on site, and the falling building frame will also generate a lot of dust, thus causing significant harm and impact on the environment. Based on this, it is necessary to design a building frame dismantling device and its dismantling method to ensure the safety of building frame dismantling. A search revealed a Chinese patent application with patent number 202311002813.x, which discloses a building component demolition device and its usage method, relating to the field of building component demolition technology. The device includes a building component demolition device body, which includes an overlapping support platform. The overlapping support platform is used to move the component to the bottom surface of the building component. A pipe component clamping and limiting mechanism is detachably installed on the top outer surface of the overlapping support platform, and a supporting overlapping buffer mechanism is fixedly connected to the top middle surface of the overlapping support platform.

[0003] The building component dismantling device and method described in the above patent have the following shortcomings: During the dismantling of building components, when fixing the building, if the building components are high, workers need to climb to a high height to fix the building components using snap-fit ​​plates, which poses certain construction safety hazards. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a building frame demolition device and its demolition method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A building frame demolition device includes a base and a support, the support comprising: Channel plate: It is fixed to the top outer wall of the base; Triangular plates: Both triangular plates are movably connected to the inner wall of the channel plate; Extension plate: It is fixed to the outer wall of one side of the channel plate, and the inner wall of the through hole opened on the surface of the extension plate is movably connected with a liner, and a lifting frame is welded to the outer wall of one side of the liner, and a ball is movably connected to the bottom of the lifting frame. Inclined plate: It is fixed to the outer wall of the top of the lifting frame by pins; Horizontal plate: It is fixed between two bases, and a sleeve is fixed to the top outer wall of the horizontal plate, and a sliding column is movably connected to the inner wall of the sleeve; Extension plate: It is fixed to the top of the sliding column, and a support base is welded to one side of the outer wall of the extension plate; Square plate: It is fixed to the top outer wall of the support base, and the inner wall of the through hole opened on the surface of the square plate is movably connected to a sliding column, and a spring is fixed between the inner wall of one side of the sliding column and the outer wall of one side of the square plate by a pin; Clamping plate: It is movably connected to the inner wall of the sliding groove opened at the top of the support base, and the clamping plate and the sliding column are fixedly connected; Inclined top block: It is fixed to one end of the sliding column by a pin, and the outer walls on both sides of the inclined top block are fixed with limit plates by pins; A support mechanism is provided between the channel plate and the bottom of the support base.

[0006] Preferably, the support mechanism includes a height adjustment mechanism and a jacking mechanism. The height adjustment mechanism includes a frame, a stand, a limiting rod, and a threaded column. The frame is fixed to the outer walls of both sides of the channel plate, and the limiting rod is movably connected to the inner wall of the through hole opened at the top of the frame. The stand is fixed to the top outer wall of the limiting rod by a pin, and the threaded column is movably connected to the bottom of the stand. The top of the frame is provided with a threaded hole that matches the outer diameter of the threaded column.

[0007] Preferably, the jacking mechanism includes a guide frame and a plate base. The plate base is movably connected to the inner wall of the stand via a rotating shaft. The guide frame is fixed to the top outer wall of the plate base. A counterweight is welded to the outer circumference of the plate base.

[0008] Preferably, a pin is movably connected to the inner wall of the through hole at the top of the guide frame, and a slot adapted to the outer diameter of the pin is provided at the bottom of the support base. The same return spring is fixed between the bottom outer wall of the pin and the top outer wall of the disc base by a pin.

[0009] Preferably, the jacking mechanism further includes a spring and a through rod. The through rod is movably connected to the inner wall of the through hole opened on the circumference of the pin. The spring is sleeved on the outer wall of the circumference of the through rod, and the two ends of the spring are respectively fixed to the inner wall of one side of the through rod and the outer wall of the pin by pins.

[0010] Preferably, a vertical rod is fixed to the top outer wall of the stand by a pin, and a retaining ring adapted to the through rod is fixed to the top of the vertical rod by a pin.

[0011] Preferably, one of the lifting frames has a middle rod fixed to one side of its outer wall, and one end of the middle rod is fixed to a push plate by a pin.

[0012] Based on the aforementioned scheme: the same bidirectional threaded rod is movably connected to the inner walls on both sides of the channel plate, and a drive motor is fixed to the outer wall on one side of the channel plate, and the output end of the drive motor and the bidirectional threaded rod are connected by a coupling.

[0013] Based on the aforementioned scheme, the preferred option is that the bottom outer wall of the base is movably connected with casters.

[0014] A method for dismantling a building frame dismantling device includes the following steps: S1: Adjust the height of the pin according to the demolition height of the building frame using a threaded post, and insert the through rod into the inner wall of the retaining ring using the elastic force of spring one to limit the position of the pin in the vertical direction; S2: Use a wrench or demolition tools to dismantle the building frame according to its type; S3: Use the inclined plate to push the inclined top block, so that the two clamping plates clamp and fix the side wall of the building frame; S4: The push plate is used to squeeze the end of the through rod, causing the end of the through rod to detach from the inner wall of the retainer, and the guide frame tilts to one side under the counterweight of the counterweight block. S5: Using a triangular plate to drive the ball to move downwards in the vertical direction, the support seat transports the building frame to a lower position for transfer.

[0015] The beneficial effects of this invention are as follows: By setting up support bases, the bottom of the dismantled building frame can be supported to prevent the building frame from falling directly and causing danger. By using the weight of the building frame itself to drive the inclined plate to tighten the inclined top block, the two clamping plates can clamp and fix the side wall of the building frame.

[0016] The height of the support base can be adjusted within a certain range by setting threaded columns and limiting rods, so that the height of the support base can be adapted to the disassembly and assembly height of the building frame, ensuring that the bottom of the support base and the bottom of the building frame fit together.

[0017] By incorporating a retaining ring and a through rod, the initial position of the pin can be limited, ensuring that the pin remains vertical. This allows the pin to gradually insert into the inner wall of the slot during vertical movement, thus providing support for the support base.

[0018] By setting a push plate to squeeze the end of the through rod as it rises with the lifting frame, the through rod, being tapered at the end, slides a certain distance along the inclined plate after being squeezed. This allows the pin to disengage from the bottom of the slot under the restoring force of the return spring, enabling the guide frame to tilt to one side under the counterweight, thus avoiding interference with the subsequent movement of the building frame.

[0019] By installing a drive motor to drive the bidirectional threaded rod to rotate, the two triangular plates can move in opposite directions. This allows the height of the rolling ball to be adjusted using the triangular plates, enabling the clamped and fixed building frame to be moved to a relatively low height, facilitating the transfer of the building frame. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a building frame demolition device proposed in this invention; Figure 2 This is a schematic diagram of the lateral structure of a building frame demolition device proposed in this invention; Figure 3 This is a schematic diagram of the main structure of a building frame demolition device proposed in this invention; Figure 4 This is a schematic diagram of the main exploded structure of a building frame demolition device proposed in this invention; Figure 5 This is a schematic diagram of the support mechanism installation structure of a building frame demolition device proposed in this invention; Figure 6 This is an exploded structural diagram of the support mechanism of a building frame demolition device proposed in this invention; Figure 7 This is a schematic diagram of the main structure of the support mechanism of a building frame demolition device proposed in this invention; Figure 8 This is a schematic diagram of the bottom structure of the support section of a building frame demolition device proposed in this invention; Figure 9 This is a top view schematic diagram of the support structure of a building frame demolition device proposed in this invention.

[0021] In the diagram: 1-Base, 2-Wheel caster, 3-Drive motor, 4-Support seat, 5-Triangle plate, 6-Reset spring, 7-Clamping plate, 8-Sliding column, 9-Sleeve, 10-Horizontal plate, 11-Limiting plate, 12-Lifting frame, 13-Double threaded rod, 14-Extension plate, 15-Slide groove, 16-Snap ring, 17-Pin rod, 18-Spring 1, 19-Guide frame, 20-Push plate, 21-Disc seat, 22-Upright seat, 23-Frame, 24-Backing rod, 25-Extension plate, 26-Rolling ball, 27-Slanted plate, 28-Through rod, 29-Intermediate rod, 30-Counterweight block, 31-Vertical rod, 32-Limiting rod, 33-Threaded column, 34-Slanted top block, 35-Slot, 36-Sliding column, 37-Spring 2, 38-Square plate, 39-Slotted plate. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0025] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0026] In addition, the term "multiple" should mean two or more.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0028] A building frame dismantling device, such as Figure 1-9 As shown, it includes a base 1 and a support portion, the support portion comprising: Channel plate 39: It is fixed to the top outer wall of the base 1 by bolts; Triangle plate 5: Both triangle plates 5 are slidably connected to the inner wall of the channel plate 39; Extension plate 25: It is fixed to the outer wall of one side of the channel plate 39 by bolts, and the inner wall of the through hole opened on the surface of the extension plate 25 is slidably connected to the bushing 24, and the outer wall of one side of the bushing 24 is welded to the lifting frame 12, and the bottom of the lifting frame 12 is rotatably connected to the ball 26. Inclined plate 27: It is fixed to the top outer wall of the lifting frame 12 by pins; Horizontal plate 10: It is fixed between two bases 1 by bolts, and a sleeve 9 is fixed to the top outer wall of the horizontal plate 10 by bolts, and a sliding column 8 is slidably connected to the inner wall of the sleeve 9. Extension plate 14: It is fixed to the top of the sliding column 8 by bolts, and a support seat 4 is welded to one side of the outer wall of the extension plate 14; Square plate 38: It is fixed to the top outer wall of the support base 4 by bolts, and the inner wall of the through hole opened on the surface of the square plate 38 is slidably connected to the sliding column 36, and the inner wall of one side of the sliding column 36 and the outer wall of one side of the square plate 38 are fixed by a pin to the spring 37. Clamping plate 7: It is slidably connected to the inner wall of the groove 15 opened at the top of the support base 4, and the clamping plate 7 and the sliding column 36 are fixedly connected. Inclined top block 34: It is fixed to one end of the sliding column 36 by a pin, and the limit plates 11 are fixed to both outer walls of the inclined top block 34 by pins. A support mechanism is provided between the bottom of the grooved plate 39 and the support base 4; The support mechanism can provide temporary support for the support base 4, thereby keeping the support base 4 at a certain height temporarily. This ensures that the upper surface of the support base 4 is in close contact with the bottom of the building frame. When the building frame is dismantled, depending on the specific type of building frame, such as steel or concrete, the bolts connecting the steel building frame need to be removed, while the concrete building frame needs to be broken apart using demolition tools. During the dismantling process, the support base 4 can support the building frame, preventing the building frame from falling and causing safety hazards and generating a lot of dust. After the building frame is dismantled, the bottom of the building frame is pressed against the upper surface of the support base 4. By driving two triangular plates 5 to move relative to each other along the inside of the channel plate 39, the inclined area of ​​the triangular plates 5 can compress the rolling ball 26. As the rolling ball 26 rolls along the inclined area of ​​the triangular plates 5, the inclined plate 27 can rise vertically under the guidance of the bushing 24 and the extension plate 25. When the inclined plate 27 moves to the inclined top block 34, the inclined area of ​​the inclined plate 27 will push the inclined area of ​​the inclined top block 34. The limiting plate 11 can guide the movement trajectory of the inclined plate 27. During the pushing of the inclined area of ​​the inclined plate 27 against the inclined area of ​​the inclined top block 34, the inclined top block 34 can drive the clamping plate 7 to move laterally, so that the two clamping plates 7 can clamp and fix the two side walls of the building frame during the relative movement. After the two clamping plates 7 have clamped the two side walls of the building frame respectively, the building frame... The two clamping plates 7 act as a limiting mechanism. As the inclined plates 27 continue to rise, they can lift the two inclined top blocks 34 and the support base 4 as a whole. The support mechanism and the support base 4 are movably connected. After the support base 4 and the inclined top blocks 34 rise a certain distance as a whole, the support mechanism is disengaged from the bottom of the support base 4. At this time, the weight of the building frame is fully applied to the surface of the support base 4. The weight of the building frame itself causes the two inclined plates 27 to continuously tighten the inclined top blocks 34, thereby ensuring that the two clamping plates 7 can be tightly pressed against the side wall of the building frame to achieve stable clamping of the building frame. After clamping, the two triangular plates 5 are driven to move in opposite directions, so that the two inclined plates 27 are reset relative to the initial position. This allows the clamped and fixed building frame to move continuously downward in the vertical direction, thereby achieving safe transportation of the building frame and avoiding the danger of the building frame falling directly after dismantling.

[0029] Furthermore, the support mechanism includes a height adjustment mechanism and a jacking mechanism. The height adjustment mechanism includes a frame 23, a base 22, a limiting rod 32, and a threaded column 33. The frame 23 is fixed to the outer walls of both sides of the channel plate 39 by bolts, and the limiting rod 32 is slidably connected to the inner wall of the through hole opened at the top of the frame 23. The base 22 is fixed to the top outer wall of the limiting rod 32 by pins. The threaded column 33 is rotatably connected to the bottom of the base 22, and the top of the frame 23 has a threaded hole that matches the outer diameter of the threaded column 33. The jacking mechanism includes a guide frame 19 and a plate base 21. The plate base 21 is rotatably connected to the inner wall of the upright base 22 via a rotating shaft. The guide frame 19 is fixed to the top outer wall of the plate base 21 by bolts. A pin 17 is slidably connected to the inner wall of the through hole opened at the top of the guide frame 19. A slot 35 adapted to the outer diameter of the pin 17 is opened at the bottom of the support base 4. The same return spring 6 is fixed between the bottom outer wall of the pin 17 and the top outer wall of the plate base 21 by a pin. A counterweight 30 is welded to the circumferential outer wall of the plate base 21. The jacking mechanism also includes a spring 18 and a through rod 28. The through rod 28 is slidably connected to the inner wall of the through hole opened on the circumference of the pin 17. The spring 18 is sleeved on the outer wall of the circumference of the through rod 28, and the two ends of the spring 18 are respectively fixed to the inner wall of one side of the through rod 28 and the outer wall of the pin 17 by pins. The top outer wall of the stand 22 is fixed with a vertical rod 31 by pins, and the top of the vertical rod 31 is fixed with a retaining ring 16 adapted to the through rod 28 by pins. In the initial stage, when the top of pin 17 is parallel to the horizontal plane, rotating the threaded column 33 allows the support 22 to move vertically under the guidance of the limiting rod 32, thereby adjusting the height of pin 17. When the support 4 is inserted into the top of pin 17 using its bottom slot 35, the height of the support 4 can be adjusted in the initial stage, allowing for corresponding adjustments based on the disassembly height of the building frame. The retaining ring 16 provides a limiting function for the through rod 28. Due to the rotatable connection between the disc base 21 and the support 22, the through rod 28 is inserted into the retaining ring 16 using the spring force of spring 18, allowing pin 17 to move vertically. Maintaining stability in the vertical direction facilitates the subsequent connection between the support base 4 and the pin 17 via the slot 35. When the building frame is dismantled and supported by the support base 4, the through rod 28 is slid along the retaining ring 16 by external force. As the through rod 28 gradually disengages from the inner wall of the retaining ring 16, the return force of the return spring 6 ensures that the pin 17 quickly disengages from the inner wall of the slot 35. At this time, under the counterweight of the counterweight block 30, the plate base 21 will deflect to one side along the upright base 22, causing the guide frame 19 to gradually rotate from the vertical state to the horizontal state. This is to effectively ensure that when the building frame moves downward after being clamped and fixed, the guide frame 19 does not interfere with the movement of the building frame.

[0030] Furthermore, one of the lifting frames 12 has an intermediate rod 29 fixed to one side of its outer wall by bolts, and a push plate 20 is fixed to one end of the intermediate rod 29 by a pin; By fixing the push plate 20 to the lifting frame 12 using the intermediate rod 29, when the lifting frame 12 moves vertically, and the push plate 20 moves to the surface of the retaining ring 16 and slides along the surface of the retaining ring 16, the push plate 20 can squeeze the end of the through rod 28. The end of the through rod 28 has a tapered structure. The push plate 20 squeezes the end of the through rod 28, causing the through rod 28 to slide along the retaining ring 16. When the end of the through rod 28 gradually disengages from the retaining ring 16, the pin 17 can automatically disengage from the slot 35 at the bottom of the moving support 4 under the action of the return spring 6. The push plate 20 can be used to achieve automatic unlocking between the through rod 28 and the retaining ring 16.

[0031] Furthermore, the same bidirectional threaded rod 13 is rotatably connected to the inner walls on both sides of the channel plate 39, and a drive motor 3 is fixed to one side of the outer wall of the channel plate 39 by bolts, and the output end of the drive motor 3 and the bidirectional threaded rod 13 are connected by a coupling. The bidirectional threaded rod 13 can be driven to rotate by a drive motor 3. The surface of the bidirectional threaded rod 13 is provided with positive and negative threads, so that during the rotation of the bidirectional threaded rod 13, the two triangular plates 5 can move in opposite directions under the guidance and limitation of the slotted plate 39, thereby realizing the driving of the triangular plates 5.

[0032] Furthermore, the bottom outer wall of the base 1 is rotatably connected to casters 2; The installation of casters 2 facilitates the movement of the entire device.

[0033] In this embodiment, when the building frame needs to be dismantled, the entire device is first moved to the dismantling location using the casters 2. Then, the threaded column 33 is rotated according to the dismantling height of the building frame, thereby adjusting the height of the pin 17 within a certain range. During the movement, the pin 17 continuously pushes against the support seat 4. When the support seat 4 moves to the bottom of the building frame, the building frame is then dismantled using a wrench or demolition tools. After the building frame is dismantled, the drive motor 3 drives the bidirectional threaded rod 13 to rotate, causing the two triangular plates 5 to move in opposite directions. The triangular plates 5 drive the ball 26 to roll along its surface, thereby causing the inclined plate 27 to move continuously upward in the vertical direction. When the inclined plate 27 moves to the inclined top block 34... At this time, the inclined plate 27 is used to press the inclined top block 34, so that the clamping plate 7 can move laterally under the driving action of the inclined top block 34 to clamp the side wall of the building frame. During this process, the push plate 20 can press the end of the through rod 28 while moving in the vertical direction, so that the through rod 28 is disengaged from the retaining ring 16. The pin 17 is disengaged from the surface of the slot 35 under the action of the return spring 6. The counterweight 30 is used to tilt the pin 17 in one direction. Then, the drive motor 3 drives the bidirectional threaded rod 13 to reverse. During the reset process, the two triangular plates 5 drive the support seat 4 to move down in the vertical direction, so that the building frame is gradually moved to a relatively low position and then the dismantled building frame is transferred. Example

[0034] A method for dismantling a building frame dismantling device includes the following steps: S1: Adjust the height of pin 17 according to the demolition height of the building frame using threaded post 33, insert through rod 28 into the inner wall of snap ring 16 using the elastic force of spring 18, and limit the position of pin 17 in the vertical direction. S2: Use a wrench or demolition tools to dismantle the building frame according to its type; S3: The inclined plate 27 is used to push the inclined top block 34, so that the two clamping plates 7 clamp and fix the side wall of the building frame. S4: The push plate 20 is used to press the end of the through rod 28, causing the end of the through rod 28 to detach from the inner wall of the retaining ring 16, and the guide frame 19 tilts to one side under the counterweight of the counterweight block 30. S5: Using the triangular plate 5 to drive the ball 26 to move downward in the vertical direction, so that the support 4 can transport the building frame to a lower position for transfer.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A building frame demolition device, comprising a base (1) and a support, characterized in that, The support includes: Channel plate (39): It is fixed to the top outer wall of the base (1); Triangle plate (5): Both triangle plates (5) are movably connected to the inner wall of the channel plate (39); Extension plate (25): It is fixed to the outer wall of one side of the channel plate (39), and the inner wall of the through hole opened on the surface of the extension plate (25) is movably connected to the bushing (24), and the outer wall of one side of the bushing (24) is welded to the lifting frame (12), and the bottom of the lifting frame (12) is movably connected to the ball (26). Inclined plate (27): It is fixed to the top outer wall of the lifting frame (12) by a pin; Horizontal plate (10): It is fixed between two bases (1), and a sleeve (9) is fixed on the top outer wall of the horizontal plate (10), and a sliding column (8) is movably connected to the inner wall of the sleeve (9). Extension plate (14): It is fixed to the top of the sliding column (8), and a support seat (4) is welded to the outer wall of one side of the extension plate (14). Square plate (38): It is fixed to the top outer wall of the support base (4), and the inner wall of the through hole opened on the surface of the square plate (38) is movably connected to the sliding column (36), and the inner wall of one side of the sliding column (36) and the outer wall of one side of the square plate (38) are fixed by a pin to the spring two (37). Clamping plate (7): It is movably connected to the inner wall of the slide groove (15) opened at the top of the support base (4), and the clamping plate (7) and the sliding column (36) are fixedly connected; Inclined top block (34): It is fixed to one end of the sliding column (36) by a pin, and the outer walls on both sides of the inclined top block (34) are fixed with limit plates (11) by pins. A support mechanism is provided between the bottom of the groove plate (39) and the support base (4); The support mechanism includes a height adjustment mechanism and a jacking mechanism. The jacking mechanism includes a guide frame (19) and a plate base (21). The plate base (21) is movably connected to the inner wall of the stand (22) via a rotating shaft. The guide frame (19) is fixed to the top outer wall of the plate base (21). A counterweight (30) is welded to the outer circumference of the plate base (21). The guide frame (19) has a through hole at the top with a pin (17) movably connected to the inner wall, and the support base (4) has a slot (35) at the bottom that matches the outer diameter of the pin (17). The bottom outer wall of the pin (17) and the top outer wall of the disc base (21) are fixed with the same return spring (6) by a pin. The jacking mechanism also includes a spring (18) and a through rod (28). The through rod (28) is movably connected to the inner wall of the through hole opened on the circumference of the pin (17). The spring (18) is sleeved on the outer wall of the circumference of the through rod (28), and the two ends of the spring (18) are respectively fixed to the inner wall of one side of the through rod (28) and the outer wall of the pin (17) by pins. The top outer wall of the stand (22) is fixed with a vertical rod (31) by a pin, and the top of the vertical rod (31) is fixed with a retaining ring (16) that matches the through rod (28) by a pin.

2. The building frame demolition device according to claim 1, characterized in that, The height adjustment mechanism includes a frame (23), a stand (22), a limiting rod (32), and a threaded column (33). The frame (23) is fixed to the outer walls of both sides of the groove plate (39), and the limiting rod (32) is movably connected to the inner wall of the through hole opened at the top of the frame (23). The stand (22) is fixed to the outer wall of the top of the limiting rod (32) by a pin. The threaded column (33) is movably connected to the bottom of the stand (22), and the top of the frame (23) has a threaded hole that matches the outer diameter of the threaded column (33).

3. A building frame demolition device according to claim 2, characterized in that, One of the lifting frames (12) has a middle rod (29) fixed to one side of its outer wall, and a push plate (20) is fixed to one end of the middle rod (29) by a pin.

4. A building frame demolition device according to claim 3, characterized in that, The inner walls of both sides of the groove plate (39) are movably connected to the same bidirectional threaded rod (13), and a drive motor (3) is fixed on one side of the outer wall of the groove plate (39). The output end of the drive motor (3) and the bidirectional threaded rod (13) are connected by a coupling.

5. A building frame demolition device according to claim 4, characterized in that, The base (1) has casters (2) movably connected to the bottom outer wall.

6. A method for dismantling a building frame dismantling device according to any one of claims 1-5, characterized in that, Includes the following steps: S1: Adjust the height of the pin (17) according to the demolition height of the building frame using the threaded column (33), insert the through rod (28) into the inner wall of the retaining ring (16) using the elastic force of the spring (18), and limit the position of the pin (17) in the vertical direction. S2: Use a wrench or demolition tools to dismantle the building frame according to its type; S3: Use the inclined plate (27) to push the inclined top block (34) so ​​that the two clamping plates (7) clamp and fix the side wall of the building frame; S4: The push plate (20) is used to squeeze the end of the through rod (28), so that the end of the through rod (28) is separated from the inner wall of the retaining ring (16), and the guide frame (19) tilts to one side under the counterweight of the counterweight block (30); S5: Using the triangle plate (5) to drive the ball (26) to move down in the vertical direction, so that the support (4) transports the building frame to a lower position for transfer.

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