A hoisting device for continuous beam form dismounting

Abstract

The utility model relates to continuous beam construction equipment technical field discloses a hoisting device for continuous beam template dismantling, aims at solving the problem that large hoisting equipment cannot work, small tonnage crane capacity is insufficient under the scene of adjacent high speed, business line or small site, and the problem that traditional dismantling mode is high in safety risk and cost, the device includes flat link, chain hoist, steel strand, suspension assembly, connecting assembly and slow -descent component, realizes the stable connection of steel strand through anchor, jaw structure, and slow -descent component controls template steady decline. The utility model does not need to rely on large -scale equipment, and the construction cost is reduced by more than 60%, the efficiency is promoted by 50%, the safety risk is reduced obviously, is applicable to the continuous beam template dismantling operation under the restricted environment.

Description

Technical Field

[0001] This utility model relates to the field of continuous beam construction technology, and more specifically, to a hoisting device for dismantling continuous beam formwork. Background Technology

[0002] The dismantling of continuous beam formwork is a critical step in the construction of continuous beams, and its safety and efficiency directly affect the project progress and construction safety.

[0003] Existing formwork dismantling methods have significant drawbacks: First, they rely on large lifting equipment such as truck cranes and crawler cranes. In situations near operational railway lines, highways, or in confined spaces, large equipment cannot be brought in for operation, and improper operation can easily lead to safety accidents, even causing train stops. Second, small-tonnage cranes are insufficient for the construction of high-pier continuous beams, failing to meet the needs of formwork lifting and unloading. Third, without the use of lifting equipment, construction costs are high and safety risks are significant due to the weight of the formwork and site limitations, requiring scaffolding and resulting in low efficiency. Therefore, there is an urgent need to design a continuous beam formwork dismantling and lifting device that is adaptable to constrained environments, safe, reliable, economical, and convenient to solve the above problems. Utility Model Content

[0004] This utility model aims to solve the problems of large hoisting equipment being unable to operate in situations such as near highways, operating lines, or in confined spaces, insufficient capacity of small-tonnage cranes, and high safety risks and costs associated with traditional continuous beam formwork dismantling methods.

[0005] To address the aforementioned problems, this utility model provides a hoisting device for dismantling continuous beam formwork, used for hoisting and unloading a hanging basket side formwork from one side of a continuous beam. The device includes: a horizontal coupling, fixedly installed above the continuous beam; a hand-operated hoist, suspended below the horizontal coupling; a steel strand for connecting the hand-operated hoist and the hanging basket side formwork; a suspension assembly located at the top of the steel strand and connected to the hook of the hand-operated hoist; a connecting assembly located at the bottom of the steel strand and fixedly connected to the hanging basket side formwork; and a slow-descent assembly fixedly installed on the surface of the continuous beam, cooperating with the steel strand to achieve a smooth and slow descent of the hanging basket side formwork.

[0006] The present invention provides a hoisting device for dismantling continuous beam formwork, which, compared with the prior art, has the following beneficial effects, but is not limited to: Addressing the challenges of large hoisting equipment being unable to operate in confined spaces near highways, operational lines, or other limited areas, the limitations of small-tonnage cranes, and the high safety risks and costs associated with traditional continuous beam formwork dismantling methods, this device utilizes a horizontal coupling as a fixed foundation, a hand-operated hoist providing lifting power, and steel strands as the force transmission component. These strands are securely anchored at both ends via suspension and connection components. A slow-descent component, working in conjunction with the steel strands, controls the formwork's descent speed to prevent rapid falls. During construction, the hand-operated hoist is first suspended below the horizontal coupling, ensuring it is perpendicular to the steel strands. Then, the bottom end of the steel strands is connected to the side formwork of the continuous beam via the connection components, while the top end is connected to the hook of the hand-operated hoist via the suspension components. Once the formwork is finalized, dismantling can begin. Loosen the tie bolts of the side formwork of the hanging basket, disconnecting the connection between the side formwork and the bottom formwork. Then, pull the hand-operated hoist to lower the side formwork of the hanging basket continuously via the steel strand, achieving the hoisting and unloading operation. During the hoisting and unloading process, the slow-descent component can help slow down the side formwork, making the construction process safer. The overall structure does not rely on large equipment and can be used in scenarios such as near operating lines, highways, confined spaces, or high piers, solving the problem of traditional equipment being unable to enter the site. The overall structure is simple, disassembly and assembly are quick, and hoisting and unloading can be completed manually without the need for professional technicians. It can be adapted to different specifications of hanging basket side formwork, and the steel strand has high tensile strength, strong load-bearing capacity, and a wide range of applications.

[0007] Furthermore, the suspension assembly includes a circular anchor and a first clamp; the surface of the circular anchor has a first anchor hole, and the first clamp is disposed in the first anchor hole; the top end of the steel strand passes through the first anchor hole and is anchored to the circular anchor by the first clamp.

[0008] Furthermore, a handle is fixedly provided on the outer wall of the circular anchor, and the handle is used to be hooked into the hook of the hand chain hoist.

[0009] Furthermore, the connecting assembly includes an outer sliding beam, a flat anchor, and a second clamping plate; the outer sliding beam is fixed in the side formwork of the hanging basket, and the flat anchor is fixedly installed in the outer sliding beam; the flat anchor has a second anchor hole, the second clamping plate is located in the second anchor hole, and the bottom end of the steel strand passes through the second anchor hole and is anchored by the second clamping plate.

[0010] Furthermore, the outer sliding beam is located at the center of the hanging basket side formwork, which is used to keep the hanging basket side formwork in a vertical state when it is lifted.

[0011] Furthermore, the descent assembly includes a base, a bracket, a rotating shaft, and a descent roller; the base is fixed to the upper surface of the continuous beam, and the bracket is fixed to the upper surface of the base; the rotating shaft is rotatably disposed in the bracket, the descent roller is fixed to the outer wall of the rotating shaft, and the steel strand is wound around the outer side of the descent roller.

[0012] Furthermore, the surface of the decelerating roller is provided with anti-slip strips, which are equidistantly distributed along the axial direction of the decelerating roller to increase the friction with the steel strand.

[0013] Furthermore, the outer side of the anti-slip strip is also provided with diamond-shaped anti-slip patterns.

[0014] Furthermore, the descent control assembly also includes a speed reducer; the speed reducer is fixed to the outer wall of the bracket, and the rotating shaft is connected to the power output shaft of the speed reducer.

[0015] Furthermore, the descent assembly also includes a turntable; the turntable is connected to the power input shaft of the reducer and is used to drive the descent roller to rotate in the opposite direction. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a hoisting device for dismantling continuous beam formwork according to an embodiment of the present utility model; Figure 2 for Figure 1 Enlarged structural diagram at point A in the diagram; Figure 3 for Figure 1 Enlarged structural diagram at point B in the diagram; Figure 4 for Figure 1 A magnified structural diagram at point C in the diagram.

[0017] Explanation of reference numerals in the attached figures: 1. Continuous beam; 2. Hanging basket side formwork; 3. Horizontal connection; 4. Hand-operated hoist; 5. Steel strand; 6. Suspension assembly; 61. Round anchor; 62. First clamp; 63. Handle; 7. Connecting assembly; 71. Outer sliding beam; 72. Flat anchor; 73. Second clamp; 8. Deceleration assembly; 81. Base; 82. Bracket; 83. Deceleration roller; 84. Anti-slip strip; 85. Rotating shaft; 86. Reducer; 87. Turntable. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0023] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0024] See Figures 1-4 This utility model discloses a hoisting device for dismantling continuous beam formwork, used for hoisting and unloading a hanging basket side formwork 2 on one side of a continuous beam 1. The device includes: a horizontal coupling 3, fixedly installed above the continuous beam 1; a hand-operated hoist 4, suspended below the horizontal coupling 3; a steel strand 5, used to connect the hand-operated hoist 4 and the hanging basket side formwork 2; a suspension assembly 6, located at the top of the steel strand 5 and connected to the hook of the hand-operated hoist 4; a connecting assembly 7, located at the bottom of the steel strand 5 and fixedly connected to the hanging basket side formwork 2; and a slow-descent assembly 8, fixedly installed on the surface of the continuous beam 1, cooperating with the steel strand 5 to achieve a smooth and slow descent of the hanging basket side formwork 2.

[0025] In this embodiment, addressing the issues of large hoisting equipment being unable to operate in situations near highways, operational lines, or confined spaces, insufficient capacity of small-tonnage cranes, and the high safety risks and costs of traditional continuous beam formwork dismantling methods, this device uses the horizontal coupling 3 as a fixed foundation, a hand-operated hoist 4 to provide lifting and unloading power, and steel strand 5 as a force transmission component. Both ends are securely anchored via a suspension assembly 6 and a connecting assembly 7. A slow-descent assembly 8, in conjunction with the steel strand 5, controls the formwork's descent speed to prevent rapid falls. During construction, the hand-operated hoist 4 is first suspended below the horizontal coupling 3, ensuring it is perpendicular to the steel strand 5. Then, the bottom end of the steel strand 5 is connected to the hanging basket side formwork 2 on one side of the continuous beam via the connecting assembly 7, while the top end of the steel strand 5 is connected to the hook portion of the hand-operated hoist 4 via the suspension assembly 6. After the steel strand 5 is fixed, the template can be disassembled. Loosen the tie bolts of the side formwork 2 of the hanging basket, so that the connection between the side formwork 2 and the bottom formwork is broken. Then, the hand-operated hoist 4 can be pulled to continuously lower the side formwork 2 of the hanging basket through the steel strand 5, realizing the hoisting and unloading operation of the side formwork 2 of the hanging basket. During the hoisting and unloading process, the slow-descent component 8 can be used to slow down the side formwork 2 of the hanging basket, making the construction process safer. The overall structure does not rely on large equipment and can be operated in situations such as near operating lines, highways, small spaces, or high piers, solving the problem that traditional equipment cannot enter the site. The overall structure is simple, quick to assemble and disassemble, and can be completed manually without professional technicians. It can be adapted to different specifications of side formwork 2 of the hanging basket. The steel strand 5 has high tensile strength, strong load-bearing capacity, and wide applicability.

[0026] Optional, please refer to Figure 1 and Figure 2The suspension assembly 6 includes a circular anchor 61 and a first clamping piece 62; the surface of the circular anchor 61 is provided with a first anchor hole, and the first clamping piece 62 is disposed in the first anchor hole; the top end of the steel strand 5 passes through the first anchor hole and is anchored in the circular anchor 61 by the first clamping piece 62.

[0027] In this embodiment, the circular anchor 61 is made of No. 45 steel, and its hardness reaches HB220-250 after heat treatment. A first anchor hole with a diameter of 15.5mm is opened on its surface, and the roughness of the hole wall Ra≤1.6μm. The first clamping piece 62 is a two-piece wedge structure, made of the same material as the circular anchor 61, with a wedge angle of 5° and fine teeth on the inner surface with a tooth depth of 0.2mm. After the top of the steel strand 5 is inserted into the first anchor hole, the two first clamping pieces 62 are symmetrically embedded in the gap between the anchor hole and the steel strand 5. The tail of the clamping piece is tapped with a special tool to make it stick together, thus completing the anchoring.

[0028] Optional, please refer to Figure 1 and Figure 2 The outer wall of the round anchor 61 is fixed with a handle 63, which is used to be attached to the hook of the hand chain hoist 4.

[0029] In this embodiment, the handle 63 is made of Q235B round steel bent into a U-shape. The two ends of the handle 63 are connected to the outer wall of the round anchor 61 by double-sided fillet welds with a weld height of 8mm. The central axis of the handle 63 is perpendicular to the axis of the first anchor hole of the round anchor 61, ensuring that the steel strand 5 remains vertical after the hand chain hoist 4 is attached.

[0030] Optional, please refer to Figure 1 and Figure 4 The connecting component 7 includes an outer sliding beam 71, a flat anchor 72, and a second clamping piece 73; the outer sliding beam 71 is fixed in the side mold 2 of the hanging basket, and the flat anchor 72 is fixedly installed in the outer sliding beam 71; the flat anchor 72 has a second anchor hole, the second clamping piece 73 is located in the second anchor hole, and the bottom end of the steel strand 5 passes through the second anchor hole and is anchored by the second clamping piece 73.

[0031] In this embodiment, the outer sliding beam 71 is made of H-beams with a diameter of H100×100×6×8, and is fixed to the template steel frame by M16 high-strength bolts. The flat anchor 72 is made of No. 45 steel and is fixed to the center of the web of the outer sliding beam 71 by welding. A second anchor hole with a diameter of 15.5mm is opened on the surface of the anchor. The structure and material of the second clamp 73 are completely the same as those of the first clamp 62. After the bottom end of the steel strand 5 is inserted into the second anchor hole, it is anchored by the second clamp 73.

[0032] Optional, please refer to Figure 1 and Figure 4 The outer sliding beam 71 is located at the center of the hanging basket side mold 2, and is used to keep the hanging basket side mold 2 in a vertical state when it is lifted.

[0033] In this embodiment, the outer sliding beam 71 is positioned by laser ranging and fixed at the geometric center of the hanging basket side mold 2. That is, the axis of the outer sliding beam 71 coincides with the vertical center line of the template, so that the hanging basket side mold 2 always remains vertical when it is lifted, avoiding tilting and collision during the lifting and unloading process, and further improving safety.

[0034] Optional, please refer to Figure 1 and Figure 3 The slow-descent assembly 8 includes a base 81, a bracket 82, a rotating shaft 85, and a slow-descent roller 83. The base 81 is fixed to the upper surface of the continuous beam 1, and the bracket 82 is fixed to the upper surface of the base 81. The rotating shaft 85 is rotatably disposed in the bracket 82, and the slow-descent roller 83 is fixed to the outer wall of the rotating shaft 85. The steel strand 5 is wound around the outside of the slow-descent roller 83.

[0035] In this embodiment, the base 81 is made of Q235B steel plate and is fixed to the upper surface of the continuous beam 1 by four M24 expansion bolts. The bracket 82 is welded from two Q235B angle steels, and its bottom is fully welded to the base 81. The top is mounted on the rotating shaft 85 through a bearing seat. The decelerating roller 83 is a Q235B steel cylinder structure with a diameter of 150mm and a length of 200mm. It is fixed to the middle of the rotating shaft 85 by a key connection. The steel strand 5 is wound around the surface of the decelerating roller 83, with one or more turns. When the steel strand 5 is continuously lowered by the hand chain hoist 4, the friction between the steel strand 5 and the decelerating roller 83 can drive the decelerating roller 83 to rotate, thus achieving the purpose of decelerating.

[0036] Optional, please refer to Figure 1 and Figure 3 The surface of the decelerating roller 83 is provided with anti-slip strips 84, which are equidistantly distributed along the axial direction of the decelerating roller 83 to increase the friction with the steel strand 5.

[0037] In this embodiment, the anti-slip strip 84 is made of nitrile rubber with a Shore hardness of 70-75, exhibiting good wear resistance and elasticity. The anti-slip strips 84 are evenly distributed along the axial direction of the deceleration roller 83 with a spacing of 30mm. They are bonded to the surface of the deceleration roller 83 with high-strength epoxy adhesive. The height difference between the top surface of the anti-slip strip 84 and the surface of the deceleration roller 83 is 5mm, forming a concave-convex structure. Optionally, the outer side of the anti-slip strip 84 is also provided with diamond-shaped anti-slip patterns.

[0038] In this embodiment, a diamond-shaped anti-slip pattern is processed on the outer surface of the anti-slip strip 84 using a molding process. The diamond has a side length of 5mm, a pattern depth of 1.5mm, and a pattern spacing of 2mm. The anti-slip pattern covers the entire top surface of the anti-slip strip 84.

[0039] Optional, please refer to Figure 1 and Figure 3The descent control assembly 8 also includes a reducer 86; the reducer 86 is fixed to the outer wall of the bracket 82, and the rotating shaft 85 is connected to the power output shaft of the reducer 86.

[0040] In this embodiment, the reducer 86 is an RV50 type worm gear reducer 86 with a reduction ratio of 1:50 and a rated output torque of 500 N·m. It is fixed to the outer wall of the bracket 82 of the slow descent assembly 8 by a flange. The power output shaft of the reducer 86 is connected to the rotating shaft 85 by a flexible coupling. The reducer 86 is filled with industrial gear oil to ensure sufficient lubrication and reduce transmission loss. With the help of the reducer 86, the descent speed can be further reduced to achieve a smooth slow descent.

[0041] Optional, please refer to Figure 1 and Figure 3 The slow-descent assembly 8 also includes a turntable 87; the turntable 87 is connected to the power input shaft of the reducer 86 and is used to drive the slow-descent roller 83 to rotate in the opposite direction.

[0042] In this embodiment, the turntable 87 is made of cast iron and has 6 radially distributed anti-slip ridges on its surface, making it easy for operators to grip and apply force. A keyway is opened in the center of the turntable 87, which is connected to the power input shaft of the reducer 86 via a flat key. The outer edge of the turntable 87 is wrapped with a 5mm thick rubber sleeve to prevent hand slippage and injury during operation. The turntable 87 can drive the slow-descent roller 83 to rotate in the opposite direction to assist in lifting the template, reduce manpower consumption, and make the process of pulling the hand chain hoist 4 more effortless and the use effect better.

[0043] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A hoisting device for dismantling continuous beam formwork, used for hoisting and unloading the hanging basket side formwork (2) on one side of a continuous beam (1), characterized in that, include: The horizontal bracing (3) is fixedly installed above the continuous beam (1); A hand-operated hoist (4) is suspended below the horizontal linkage (3); Steel strand (5) is used to connect the hand chain hoist (4) and the side mold of the hanging basket (2); The suspension assembly (6) is located at the top of the steel strand (5) and is connected to the hook of the hand chain hoist (4); The connecting component (7) is located at the bottom end of the steel strand (5) and is fixedly connected to the side mold (2) of the hanging basket; The slow descent component (8) is fixedly installed on the surface of the continuous beam (1) and works in conjunction with the steel strand (5) to achieve a smooth slow descent of the hanging basket side formwork (2).

2. The hoisting device for dismantling continuous beam formwork according to claim 1, characterized in that, The suspension assembly (6) includes a circular anchor (61) and a first clamp (62); the surface of the circular anchor (61) is provided with a first anchor hole, and the first clamp (62) is disposed in the first anchor hole; the top end of the steel strand (5) passes through the first anchor hole and is anchored in the circular anchor (61) by the first clamp (62).

3. A hoisting device for dismantling continuous beam formwork according to claim 2, characterized in that, The outer wall of the round anchor (61) is fixed with a handle (63), which is used to be attached to the hook of the hand chain hoist (4).

4. A hoisting device for dismantling continuous beam formwork according to claim 1, characterized in that, The connecting assembly (7) includes an outer sliding beam (71), a flat anchor (72), and a second clamping piece (73); the outer sliding beam (71) is fixed in the side mold (2) of the hanging basket, and the flat anchor (72) is fixedly installed in the outer sliding beam (71); the flat anchor (72) has a second anchor hole, the second clamping piece (73) is located in the second anchor hole, and the bottom end of the steel strand (5) passes through the second anchor hole and is anchored by the second clamping piece (73).

5. A hoisting device for dismantling continuous beam formwork according to claim 4, characterized in that, The outer sliding beam (71) is located at the center of the hanging basket side formwork (2) and is used to keep the hanging basket side formwork (2) vertical when it is lifted.

6. A hoisting device for dismantling continuous beam formwork according to claim 1, characterized in that, The slow-descent assembly (8) includes a base (81), a bracket (82), a rotating shaft (85), and a slow-descent roller (83); the base (81) is fixed to the upper surface of the continuous beam (1), and the bracket (82) is fixed to the upper surface of the base (81); the rotating shaft (85) is rotatably disposed in the bracket (82), the slow-descent roller (83) is fixed to the outer wall of the rotating shaft (85), and the steel strand (5) is wound around the outside of the slow-descent roller (83).

7. A hoisting device for dismantling continuous beam formwork according to claim 6, characterized in that, The surface of the decelerating roller (83) is provided with anti-slip strips (84), which are equidistantly distributed along the axial direction of the decelerating roller (83) to increase the friction with the steel strand (5).

8. A hoisting device for dismantling continuous beam formwork according to claim 7, characterized in that, The outer side of the anti-slip strip (84) is also provided with a diamond-shaped anti-slip pattern.

9. A hoisting device for dismantling continuous beam formwork according to claim 6, characterized in that, The descent assembly (8) also includes a reducer (86); the reducer (86) is fixed to the outer wall of the bracket (82), and the rotating shaft (85) is connected to the power output shaft of the reducer (86).

10. A hoisting device for dismantling continuous beam formwork according to claim 9, characterized in that, The descent assembly (8) also includes a turntable (87); the turntable (87) is connected to the power input shaft of the reducer (86) and is used to drive the descent roller (83) to rotate in the opposite direction.

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