A device and construction method for dismantling a skeleton beam in a limited space

Abstract

The present application relates to the field of protective shed dismantling, in particular to a device for dismantling a skeleton beam in a limited space and a construction method. The device comprises a base and a joist, the base is provided with a connecting piece for connecting with the jib of an excavator; the joist is connected to the base, and the two sides of the joist are respectively provided with an abutting piece and a chuck, the abutting piece and the chuck are oppositely arranged, the abutting piece is fixedly connected with the joist, the chuck is connected with the joist through a connecting rod and a support, the support is fixedly connected with the joist, the middle section of the connecting rod is hinged to the support, the top end of the connecting rod is connected with the chuck, and the connecting rod can rotate around the support, thereby driving the chuck to approach or move away from the abutting piece. Through the lifting and clamping action of the skeleton beam, the present application can safely complete the dismantling operation of the skeleton beam in a limited space without relying on the crane jib to lift from above, effectively solving the technical problem that the traditional lifting scheme is difficult to implement under the condition of limited space.

Description

Technical Field

[0001] This invention relates to the field of protective shed dismantling, and in particular to a device and construction method for dismantling frame beams in confined spaces. Background Technology

[0002] A protective shed is a temporary safety structure used to shield equipment, tools, vehicles, etc., and has functions such as waterproofing, dustproofing, sun protection, and protection against falling objects. Figure 7 and Figure 8 As shown. Currently, the dismantling of the protective canopy's frame beams is usually carried out manually in conjunction with a truck crane. However, under confined space conditions—for example, when the protective canopy is located under a bridge and the clearance between the bridge floor and the canopy top is small—the extension of the truck crane's boom is severely restricted, making effective lifting difficult. This significantly increases the difficulty of dismantling the protective canopy's frame beams and also greatly increases the construction safety risks. Summary of the Invention

[0003] The purpose of this invention is to overcome the problem in existing technologies where, when dismantling the frame beams of protective sheds in confined spaces, the extension of the crane boom is severely restricted, making effective lifting difficult and significantly increasing the difficulty of dismantling. Therefore, this invention provides a device and construction method for dismantling frame beams in confined spaces.

[0004] In a first aspect, the present invention provides an apparatus for dismantling a frame beam in a confined space, comprising:

[0005] A base, on which a connector is provided for connecting to the boom of an excavator; A support beam is connected to the base. Abutment and clamp are respectively provided on both sides of the support beam. The abutment and clamp are arranged opposite to each other. The abutment is fixedly connected to the support beam. The clamp is connected to the support beam via a connecting rod and a support. The support is fixedly connected to the support beam. The middle section of the connecting rod is hinged to the support, and the top end of the connecting rod is connected to the clamp. The connecting rod can rotate around the support, thereby causing the clamp to move closer to or away from the abutment.

[0006] This invention provides a device for dismantling a skeleton beam in a confined space. The base supports the support beam. A connector connects the entire device to the boom of an excavator. The support beam provides mounting and fixing points for the abutment and the clamp, and also supports the skeleton beam from below. A support provides a rotatable support point for the connecting rod. The top end of the connecting rod connects to the clamp, and the connecting rod can rotate around the support, thereby driving the clamp closer to or away from the abutment. The clamp, in cooperation with the abutment, can hold the skeleton beam, preventing it from detaching from the support beam during dismantling.

[0007] This invention provides a device for dismantling a frame beam in a confined space. In confined space conditions, the boom extension of a truck crane is severely restricted, making effective lifting difficult. Using traditional lifting methods, the frame beam is almost impossible to dismantle. However, this invention utilizes the lifting action of the support beam from below and the lateral clamping action of the clamps and abutments on the frame beam. This ensures that the frame beam is simultaneously subjected to both lifting and clamping constraints during dismantling, thus eliminating the need for lifting from above with a crane boom. This allows for the safe completion of frame beam dismantling within a confined space, effectively solving the technical problem of traditional lifting methods being difficult to implement in confined space conditions.

[0008] The connecting rod can rotate around the support in two ways: either by connecting the connecting rod to the support via a motor, with the motor fixed to the support and the connecting rod connected to the motor's shaft, so that the motor's rotation drives the connecting rod to rotate around the support; or by connecting a telescopic component to the bottom end of the connecting rod, so that the telescopic component drives the bottom end of the connecting rod to move, thereby causing the connecting rod to rotate around the support.

[0009] Preferably, the bottom end of the connecting rod is provided with a telescopic component, and the two ends of the telescopic component are respectively connected to the bottom end of the connecting rod and the support beam.

[0010] In this design, the telescopic component drives the bottom end of the connecting rod to move, thereby causing the connecting rod to rotate around the support, which in turn moves the clamp closer to or away from the abutment. Compared to directly driving the connecting rod to rotate around the support using a motor, this design, through the lever structure formed between the telescopic component, the connecting rod, and the support, can apply a greater clamping force to the clamp, thus effectively improving clamping reliability.

[0011] The telescopic component can be a hydraulic telescopic mechanism or a pneumatic telescopic mechanism.

[0012] Preferably, the telescopic component is a hydraulic telescopic mechanism, which is powered by the hydraulic system of the excavator.

[0013] In this solution, the hydraulic system of the excavator directly powers the hydraulic telescopic mechanism, eliminating the need for a separate hydraulic control system, thus simplifying the structure and reducing costs. Furthermore, compared to a pneumatic telescopic mechanism, the hydraulic telescopic mechanism provides greater telescopic driving force, further improving the clamping effect of the chuck.

[0014] Preferably, the chuck is detachably connected to the top of the connecting rod. This design allows for the replacement of the chuck alone when it wears or is damaged due to prolonged use, eliminating the need to replace the entire connecting rod assembly. This reduces maintenance costs and improves repair efficiency.

[0015] The clamp and the connecting rod can be connected by bolts or snap-fit ​​connections, etc.

[0016] Preferably, the clamp and the connecting rod are connected by bolts to achieve a detachable connection. Compared with the snap-fit ​​connection method, the bolt connection in this solution is not only more stable and reliable, but also has high positioning accuracy and is less prone to loosening under vibration or impact conditions, thereby effectively ensuring the reliability of the connection between the clamp and the connecting rod.

[0017] The connection between the connector and the excavator boom can be achieved by bolts, clamps, or pins.

[0018] Preferably, the connector is provided with a pin hole, which is used to cooperate with a pin to realize the connection between the connector and the excavator boom.

[0019] The chuck can be made of steel, plastic, or rubber.

[0020] Preferably, the chuck is made of rubber. The rubber has a high coefficient of friction, which effectively increases the friction between the chuck and the workpiece, ensuring clamping reliability. Simultaneously, the elastic deformation characteristics of the rubber provide cushioning protection, preventing damage to the workpiece surface from rigid impacts when the clamp is removed.

[0021] The supporting beam can be a box girder, a single I-beam, or a double I-beam.

[0022] Preferably, the supporting beam is a double-span I-beam.

[0023] Preferably, the base includes an I-beam, and the web of the I-beam is provided with an outward expansion plate on both sides. The outward expansion plates on both sides are connected to the web of the I-beam through several connecting plates.

[0024] In this design, the expansion plate increases the overall size of the base, and the connecting plates connect the expansion plate and the I-beam.

[0025] In a second aspect, the present invention provides a construction method for dismantling a frame beam in a confined space, employing the apparatus for dismantling a frame beam in a confined space as described in the first aspect, comprising the following steps: S1: Install the device onto the boom of the excavator and remove the top panel of the protective canopy in advance; S2: Control the excavator so that the support beam of the device is parallel to the frame beam of the protective canopy, and position the frame beam between the abutment and the chuck of the device; control the chuck to move toward the abutment, and clamp the frame beam between the abutment and the chuck. S3: Disconnect the connection between the frame beam and the column of the protective shed, control the excavator to move the clamped frame beam to the predetermined storage position, and complete the dismantling of the frame beam.

[0026] This invention provides a construction method for dismantling a frame beam in a confined space. Removing the top panel of the protective shed beforehand prevents it from interfering with the dismantling of the frame beam. After the frame beam is clamped between the abutment and the clamp, the connection between the frame beam and the column of the protective shed is then disconnected. This step prevents the frame beam from losing support and accidentally falling due to premature disconnection, thus ensuring construction safety. This invention utilizes the lifting action of the support beam from below and the lateral clamping action of the clamp and the abutment to provide dual constraints of lifting and clamping during dismantling. Therefore, it eliminates the need for a crane boom to lift from above, allowing for safe dismantling of the frame beam within a confined space. This effectively solves the technical problem of traditional hoisting methods being difficult to implement in confined space conditions.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention provides a device for dismantling a frame beam in a confined space. In confined space conditions, the boom extension of a truck crane is severely restricted, making effective lifting difficult. Using traditional lifting methods, the frame beam is almost impossible to dismantle. However, this invention utilizes the lifting action of the support beam from below and the lateral clamping action of the clamps and abutments on the frame beam. This ensures that the frame beam is simultaneously subjected to both lifting and clamping constraints during dismantling, thus eliminating the need for lifting from above with a crane boom. This allows for the safe completion of frame beam dismantling within a confined space, effectively solving the technical problem of traditional lifting methods being difficult to implement in confined space conditions. 2. This invention provides a construction method for dismantling a skeleton beam in a confined space. By using the supporting beam to lift the skeleton beam from below and the clamps and abutments to laterally hold the skeleton beam, the skeleton beam is simultaneously subjected to the dual constraints of lifting and clamping during dismantling. Therefore, it is not necessary to rely on a crane boom to lift it from above, and the dismantling of the skeleton beam can be safely completed in a confined space. This effectively solves the technical problem that traditional hoisting schemes are difficult to implement under confined space conditions. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the first structure of a device for dismantling a skeleton beam in a confined space.

[0029] Figure 2 This is a schematic diagram of the second structure of a device for removing a skeleton beam in a confined space.

[0030] Figure 3 This is a schematic diagram of a third structure for a device used to remove a skeleton beam in a confined space.

[0031] Figure 4 This is a side view of a device for removing a skeleton beam in a confined space.

[0032] Figure 5 This is a top view of a device for removing a skeleton beam in a confined space.

[0033] Figure 6 This is a schematic diagram of a device for dismantling a skeleton beam in a confined space, showing the skeleton beam being clamped.

[0034] Figure 7 This is a schematic diagram of a protective shed.

[0035] Figure 8 for Figure 7 Enlarged detailed view of area A in the middle.

[0036] Marked in the image: 1-Base, 101 - I-beam, 102 - Outer expansion plate, 103 - Connecting plate 2-Connector, 3-Supporting beam, 4-Proofing parts, 5-Clamping head, 6-link, 7-Support, 8-Telescopic components, 9-Frame beam, 10-Columns 11-Shed board. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0038] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer," etc., used in the description of specific embodiments of the present invention to indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the product / equipment / device is usually placed during use. These terms are merely for the purpose of facilitating the description of the present invention or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0039] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the solution of the present invention.

[0040] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0041] Furthermore, in the description of the embodiments of the present invention, "several", "more than", and "a number of" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0042] Furthermore, in the description of the technical solution of this invention, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to connection methods commonly used in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0043] Example 1 like Figures 1 to 6 As shown, a device for dismantling a skeleton beam in a confined space includes a base 1 and a support beam 3.

[0044] The base 1 is equipped with a connector 2, which is used to connect with the boom of the excavator.

[0045] The support beam 3 is connected to the base 1. The two sides of the support beam 3 are respectively provided with abutment 4 and clamp 5. The abutment 4 and clamp 5 are arranged opposite to each other. The abutment 4 is fixedly connected to the support beam 3. The clamp 5 is connected to the support beam 3 through connecting rod 6 and support 7. The support 7 is fixedly connected to the support beam 3. The middle section of connecting rod 6 is hinged to support 7. The top of connecting rod 6 is connected to clamp 5. Connecting rod 6 can rotate around support 7, thereby driving clamp 5 to move closer to or away from abutment 4.

[0046] Specifically, the base 1 is welded to the bottom of the support beam 3. Two abutments 4 and two clamps 5 are provided, symmetrically arranged on the side of the support beam 3 relative to the base 1. Each abutment 4 can be made of double I-beams, and the abutment 4 is welded to the side of the support beam 3. The support 7 is connected to the side of the support beam 3 near the top. The support 7 can be made of 2cm thick steel plate. The middle section of the connecting rod 6 is hinged to the support 7 using M16 bolts.

[0047] Figure 7 and Figure 8 The protective shed shown is slated for dismantling. The shed comprises columns 10, frame beams 9, and shed panels 11. The frame beams 9 are supported at both ends by the columns 10. The shed panels 11 are mounted on the frame beams 9.

[0048] In an optional embodiment, the bottom end of the connecting rod 6 is provided with a telescopic component 8, and the two ends of the telescopic component 8 are respectively connected to the bottom end of the connecting rod 6 and the support beam 3.

[0049] Specifically, the telescopic end of the telescopic component 8 is hinged to the bottom end of the connecting rod 6 using high-strength bolts, and the fixed end of the telescopic component 8 is connected to the support beam 3 via a lug plate. The lug plate is connected to the bottom surface of the support beam 3, and the fixed end of the telescopic component 8 is hinged to the lug plate. The connecting rod 6 can be made of steel plate with a thickness of 2cm.

[0050] In an optional embodiment, the telescopic component 8 may be a hydraulic telescopic mechanism, which is powered by the hydraulic system of the excavator.

[0051] In an optional embodiment, the top end of the chuck 5 and the connecting rod 6 can be detachably connected.

[0052] In an optional embodiment, the chuck 5 and the connecting rod 6 can be connected by bolts to achieve a detachable connection.

[0053] In an optional embodiment, the connector 2 may be provided with a pin hole, which is used to cooperate with a pin to realize the connection between the connector 2 and the excavator boom.

[0054] Specifically, the axial direction of the pin hole is parallel to the axial direction of the support beam 3, and the pin hole is compatible with the size and model of the excavator, making it easy to install this device on the cantilever of the excavator.

[0055] In an alternative embodiment, the chuck 5 may be made of rubber.

[0056] Specifically, both the bottom of the collet 5 and the top of the connecting rod 6 are provided with square steel plates, and the four corners of the square steel plates are provided with screw holes for bolts to pass through in order to connect the collet 5 to the top of the connecting rod 6. The bolts can be M16.

[0057] In an optional embodiment, the support beam 3 can be a double-section I-beam. Specifically, a rectangular steel plate is provided between the web and flange of the I-beam, and the rectangular steel plate is fully welded to the I-beam to enhance the rigidity of the I-beam.

[0058] In an optional embodiment, the base 1 may include an I-beam 101, with an outer expansion plate 102 on each side of the web of the I-beam 101. The outer expansion plates 102 on both sides are connected to the web of the I-beam 101 through a plurality of connecting plates 103.

[0059] Specifically, the outer expansion plates 102 are symmetrically arranged on both sides of the I-beam 101. The length of the I-beam 101 is greater than the length of the outer expansion plates 102.

[0060] The materials used in this device are all common and readily available, and all connections are made by welding, making it relatively simple to manufacture and easy to operate. Compared with traditional dismantling methods, safety is guaranteed.

[0061] Example 2 A construction method for dismantling a frame beam in a confined space, using the device for dismantling a frame beam in a confined space described in Example 1, includes the following steps: S1: Install the device onto the boom of the excavator and remove the canopy 11 on top of the protective canopy in advance.

[0062] Specifically, the excavator can be a wheeled excavator or a tracked excavator. Before construction, the specifications and size of the entire demolition device are determined according to the dimensions of the protective shed and the size of the frame beam 9. It is required that the width of the support beam 3 of the device is greater than the width of the frame beam 9 to provide load-bearing capacity, while ensuring the distance between the clamp 5 and the abutment 4, so that a clamping effect is formed under the action of the telescopic component 8.

[0063] S2: Control the excavator so that the support beam 3 of the device is parallel to the frame beam 9 of the protective canopy, and position the frame beam 9 between the abutment 4 and the clamp 5 of the device. Control the clamp 5 to move toward the abutment 4 to clamp the frame beam 9 between the abutment 4 and the clamp 5.

[0064] S3: Disconnect the connection between the frame beam 9 and the column 10 of the protective shed, and control the excavator to move the clamped frame beam 9 to the predetermined storage position to complete the dismantling of the frame beam 9.

[0065] Specifically, after clamping the frame beam 9, the connection between both ends of the frame beam 9 and the top of the protective shed column 10 is manually disconnected. The boom of the excavator is then manipulated to lift the device slightly upward, causing the frame beam 9 to detach from the protective shed column 10. The frame beam 9 is then driven out of the confined space while being clamped, and the frame beam 9 is unloaded. This process is repeated to complete the dismantling of the protective shed frame beam 9.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for dismantling a skeleton beam in a confined space, characterized in that, include: A base (1) is provided with a connector (2) for connecting to the boom of an excavator; A support beam (3) is connected to the base (1). The two sides of the support beam (3) are respectively provided with abutment (4) and clamp (5). The abutment (4) and the clamp (5) are arranged opposite to each other. The abutment (4) is fixedly connected to the support beam (3). The clamp (5) is connected to the support beam (3) through a connecting rod (6) and a support (7). The support (7) is fixedly connected to the support beam (3). The middle section of the connecting rod (6) is hinged to the support (7). The top end of the connecting rod (6) is connected to the clamp (5). The connecting rod (6) can rotate around the support (7), thereby driving the clamp (5) to move closer to or away from the abutment (4).

2. A device for dismantling a skeleton beam in a confined space according to claim 1, characterized in that, The bottom end of the connecting rod (6) is provided with a telescopic component (8), and the two ends of the telescopic component (8) are respectively connected to the bottom end of the connecting rod (6) and the support beam (3).

3. A device for dismantling a skeleton beam in a confined space according to claim 2, characterized in that, The telescopic component (8) is a hydraulic telescopic mechanism, which is powered by the hydraulic system of the excavator.

4. The apparatus for dismantling a skeleton beam in a limited space according to claim 1, wherein The top end of the clamp (5) is detachably connected to the top end of the connecting rod (6).

5. A device for dismantling a skeleton beam in a confined space according to claim 4, characterized in that, The clamp (5) and the connecting rod (6) are connected by bolts to achieve a detachable connection.

6. A device for dismantling a frame beam in a confined space according to any one of claims 1-5, characterized in that, The connector (2) is provided with a pin hole, which is used to cooperate with a pin to realize the connection between the connector (2) and the excavator boom.

7. A device for dismantling a skeleton beam in a confined space according to claim 6, characterized in that, The clamp (5) is made of rubber.

8. The apparatus for dismantling a skeleton beam in a limited space according to claim 6, wherein The supporting beam (3) is a double-span I-beam.

9. The apparatus for dismantling a skeleton beam in a limited space according to claim 6, wherein The base (1) includes an I-beam (101), and an outer expansion plate (102) is provided on both sides of the web of the I-beam (101). The outer expansion plates (102) on both sides are connected to the web of the I-beam (101) through several connecting plates (103).

10. A construction method for dismantling a skeleton beam in a limited space, characterized by, The apparatus for dismantling a frame beam in a confined space as described in any one of claims 1-9 includes the following steps: S1: Install the device onto the boom of the excavator and remove the top panel of the protective canopy (11) in advance. S2: Control the excavator so that the support beam (3) of the device is parallel to the frame beam (9) of the protective shed, and the frame beam (9) is located between the abutment (4) and the chuck (5) of the device. Control the chuck (5) to move toward the abutment (4) and clamp the frame beam (9) between the abutment (4) and the chuck (5). S3: Disconnect the connection between the skeleton beam (9) and the column (10) of the protective shed, control the excavator to move the clamped skeleton beam (9) to the predetermined storage position, and complete the dismantling of the skeleton beam (9).

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