Hoisting device

Abstract

The utility model discloses a hoisting device which comprises a stand column, a cross beam arranged at the top end of the stand column and a hoisting mechanism arranged on the cross beam, the two ends of the cross beam are respectively provided with a lifting jacking mechanism, the two ends of the cross beam are respectively suspended out of the stand column, and a walking mechanism is arranged at the bottom of the stand column. A lifting ground supporting mechanism is arranged at the bottom of the walking mechanism. The hoisting device disclosed by the utility model can be conveniently moved to a hoisting position due to the arrangement of the walking mechanism; according to the hoisting device, the stability of the hoisting mechanism during hoisting operation can be guaranteed without arranging a plurality of stand columns, the occupied space of the hoisting device is small, the influence on movement of personnel and equipment is small, and the influence on other construction operations during hoisting operation can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a hoisting device. Background Art

[0002] Precast concrete structures have been widely used in a variety of fields, including residential, public buildings, and industrial plants, due to their advantages such as high construction efficiency, controlled quality, energy conservation, and environmental protection. In order to further improve construction efficiency and quality, precast components are used to replace some small structures that originally required cast-in-place in certain buildings. However, the installation location of these small precast components is often limited, especially when they need to be constructed between completed upper and lower floor slabs. Traditional cranes or gantry cranes cannot directly deliver precast components to the designated location, and human cooperation is required to lift the small precast components to the designated location. However, small precast components are heavy, and workers have high labor intensity when lifting them. They are not safe and the equipment is expensive to use.

[0003] To address this issue, a hoisting bracket is often set up between the upper and lower floor slabs to assist in installation. For example, Chinese patent document No. CN209396771U discloses an indoor pipe hoisting bracket, which includes two horizontal load-bearing bases arranged side by side. The horizontal load-bearing bases are long plates or long rod-shaped structures placed horizontally on the concrete slab surface. A load-bearing column is welded to the middle of each horizontal load-bearing base. The load-bearing column is provided with a column fixing rod that connects the two ends of the horizontal load-bearing base from both sides of the load-bearing column in a diagonal manner. The upper parts of the two load-bearing columns are connected by a horizontally arranged load-bearing crossbar. Above the load-bearing crossbar, an additional load-bearing rod is arranged parallel to the load-bearing crossbar. The two ends of the additional load-bearing rod are respectively fixed to the top of the two load-bearing columns. A hand-pulled hoist is provided on the load-bearing crossbar. However, this type of indoor pipe hoisting bracket has the disadvantages of being inconvenient to move and taking up a large amount of space, which will affect the movement of personnel and related equipment, and thus affect other construction work. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a hoisting device which is easy to move, occupies a small space and is not likely to affect other construction operations.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A lifting device includes a column, a beam arranged at the top of the column, and a lifting mechanism arranged on the beam. Both ends of the beam are provided with a lifting support mechanism, and both ends of the beam are suspended from the column. The bottom of the column is provided with a walking mechanism, and the bottom of the walking mechanism is provided with a lifting support mechanism.

[0007] As a further improvement of the above technical solution: the lifting and supporting mechanism includes a first telescopic member and a first pad, the bottom end of the first telescopic member is arranged on the crossbeam, and the first pad is arranged on the top end of the first telescopic member.

[0008] As a further improvement of the above technical solution: the first pad is a rubber plate, and the first telescopic member is an oil cylinder, a pneumatic cylinder or an electric cylinder.

[0009] As a further improvement of the above technical solution: the walking mechanism includes a support seat and walking wheels arranged at the bottom of the support seat, the bottom end of the column is supported on the support seat, and the lifting and supporting mechanism is arranged at the bottom of the support seat.

[0010] As a further improvement of the above technical solution: the lifting and supporting mechanism includes a second telescopic member and a second pad, the top end of the second telescopic member is arranged at the bottom of the support seat, and the second pad is arranged at the bottom end of the second telescopic member.

[0011] As a further improvement of the above technical solution: the second pad is a rubber plate, and the second telescopic member is an oil cylinder, a pneumatic cylinder or an electric cylinder.

[0012] As a further improvement of the above technical solution: the lifting mechanism includes a hand chain hoist, the hand chain hoist is arranged on the crossbeam, and the hook of the hand chain hoist is equipped with a lifting lock.

[0013] As a further improvement of the above technical solution: a locking mechanism is provided on the column to lock the hand chain of the hand hoist.

[0014] As a further improvement of the above technical solution: the locking mechanism includes a locking block and a locking rod, the locking block is arranged on the column, a through hole is opened on the locking block, the hand chain is passed through the through hole, the locking rod is passed through the chain hole of the hand chain, and both ends are in contact with the locking block to prevent the hand chain from retreating.

[0015] As a further improvement of the above technical solution: both ends of the beam are provided with diagonal braces, and the diagonal braces are connected to the columns.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] A running mechanism is provided at the bottom of the column, which also has a lifting and supporting mechanism at its bottom. Lifting and supporting mechanisms are provided at both ends of the crossbeam. Once the hoisting device is in place via the running mechanism, the lifting and supporting mechanism rises and falls against the ground (or the bottom stabilizing structure), while the lifting and supporting mechanism rises and falls against the top plate (or the top stabilizing structure). This secures the column and crossbeam between the ground and the top plate, ensuring the stability of the hoisting device during installation. During installation, the crossbeam, affected by the weight of the component, tends to rotate about its connection point with the column. However, the lifting and supporting mechanism, abutting against the top plate, prevents the crossbeam from rotating, thus ensuring the strength of the connection between the column and the crossbeam and ensuring the stability of the crossbeam. The hoisting device of this invention, with its running mechanism, can be easily moved to the installation position. It also ensures the stability of the hoisting device during installation without requiring multiple columns. The hoisting device occupies a small space, has minimal impact on the movement of personnel and equipment, and helps minimize the impact on other construction operations during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the lifting device of the utility model.

[0019] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of part A.

[0020] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of part B.

[0021] The numbers in the figure represent: 1. column; 2. beam; 3. lifting and supporting mechanism; 31. first telescopic member; 32. first pad; 4. lifting mechanism; 41. hand hoist; 411. hook; 412. lifting lock; 413. hand chain; 5. walking mechanism; 51. supporting seat; 52. walking wheel; 6. lifting and supporting mechanism; 61. second telescopic member; 62. second pad; 7. locking mechanism; 71. locking block; 711. through hole; 72. locking rod; 8. diagonal support. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," "connect," "fix," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0025] Figures 1 to 3 An embodiment of the lifting device of the utility model is shown. The lifting device of this embodiment includes a column 1, a beam 2 arranged at the top of the column 1 and a lifting mechanism 4 arranged on the beam 2. Both ends of the beam 2 are provided with a lifting and supporting mechanism 3, and both ends of the beam 2 are suspended from the column 1. A walking mechanism 5 is provided at the bottom of the column 1, and a lifting and supporting mechanism 6 is provided at the bottom of the walking mechanism 5.

[0026] The operating principle of the hoisting device of this embodiment is as follows: after the hoisting device is put into position through the walking mechanism 5, the lifting and supporting mechanism 6 is lifted and lowered to support the ground (or the bottom stabilizing structure), and the lifting and supporting mechanism 3 is lifted and lowered to support the top plate (or the top stabilizing structure), so that the column 1 and the beam 2 are firmly "stuck" between the ground and the top plate, ensuring the stability of the lifting mechanism 4 during hoisting. During hoisting, the beam 2 is affected by the gravity of the component and tends to rotate around the connection point between the beam 2 and the column 1. The lifting and supporting mechanism 3 can prevent the rotation of the beam 2 due to its contact with the top plate, which is beneficial to ensure the connection strength between the beam 2 and the column 1.

[0027] The hoisting device of this embodiment is provided with a walking mechanism 5, which can be easily moved to the hoisting position; there is no need to set up multiple columns 1 to ensure the stability of the lifting mechanism 4 during the hoisting operation. The hoisting device occupies a small space and has little impact on the movement of personnel and equipment, which is conducive to reducing the impact on other construction operations during the hoisting operation. It should be noted that when the ground is not parallel to the top plate, the two lifting and supporting mechanisms 3 can be lifted to different heights to abut against the upper floor to ensure that the beam 2 can be firmly supported. The lifting and supporting mechanism 6 can also adjust the height of the beam 2 by lifting and lowering, so that the maximum lifting height of the hoisting mechanism 4 can be adjusted.

[0028] See Figure 1 Furthermore, in this embodiment, the traveling mechanism 5 includes a support base 51 and traveling wheels 52 provided at the bottom of the support base 51. The bottom end of the column 1 is supported on the support base 51, and the lifting and supporting mechanism 6 is provided at the bottom of the support base 51. Preferably, a plurality of traveling wheels 52 are provided at intervals along the circumference of the support base 51. When the lifting and supporting mechanism 3 is not in contact with the top plate, the traveling mechanism 5 can drive the column 1 and the crossbeam 2 to move, thereby driving the lifting and supporting mechanism 3 and the lifting mechanism 4 to move, making the movement convenient and stable.

[0029] See Figure 1 Furthermore, in the present embodiment, the lifting and supporting mechanism 3 includes a first telescopic member 31 and a first pad 32, the bottom end of the first telescopic member 31 is arranged on the crossbeam 2, and the first pad 32 is arranged at the top of the first telescopic member 31. The lifting and supporting mechanism 6 includes a second telescopic member 61 and a second pad 62, the top end of the second telescopic member 61 is arranged at the bottom of the support seat 51, and the second pad 62 is arranged at the bottom end of the second telescopic member 61. Specifically, the first pad 32 and the second pad 62 are rubber plates, which have elasticity and can better fit the upper floor or the lower floor. The first telescopic member 31 and the second telescopic member 61 are oil cylinders, which have a simple structure, large output force, and are reliable to use. Of course, in other embodiments, the first telescopic member 31 and the second telescopic member 61 can also be air cylinders or electric cylinders.

[0030] See Figure 1 and Figure 3 Furthermore, in this embodiment, the lifting mechanism 4 includes a hand chain hoist 41, which is installed on the crossbeam 2. The hook 411 of the hand chain hoist 41 is equipped with a lifting lock 412. The hand chain hoist 41 is small in size and is suitable for lifting components in confined locations. The component can be lifted by simply connecting it to the hook 411 and pulling the hand chain 413. This is simple to operate and reliable. The lifting lock 412 can be used to lock the component to prevent it from falling during the lifting process, providing excellent safety. Of course, in other embodiments, electric hoists or winches can also be used for lifting.

[0031] See Figure 1 and Figure 2 Furthermore, in this embodiment, a locking mechanism 7 is provided on the column 1 for locking the hand chain 413 of the hand chain hoist 41. Specifically, the locking mechanism 7 includes a locking block 71 and a locking rod 72. The locking block 71 is provided on the column 1 and has a through hole 711 formed therein. The hand chain 413 is passed through the through hole 711. The locking rod 72 is passed through the chain hole of the hand chain 413 and has both ends abutting against the locking block 71 to prevent the hand chain 413 from retreating. The worker pulls the hand chain 413 to lift the component to a specified height, and then passes the lower end of the hand chain 413 through the through hole 711 of the locking block 71 (one end of the through hole 711 is the chain input end, and the other end is the chain output end). Then, the locking rod 72 is inserted into the chain hole on the hand chain 413 that is outside the through hole 711 and closest to the chain output end of the through hole 711, so that the locking rod 72 spans the chain output end of the through hole 711. After the locking rod 72 is arranged, the worker releases the hand chain 413, and the two ends of the locking rod 72 will abut against the through hole 711, thereby preventing the hand chain 413 from retreating, thereby maintaining the height of the component. In the process of removing the component, the worker no longer needs to hold the hand chain 413, which reduces the labor intensity of the worker.

[0032] See Figure 1 Furthermore, in this embodiment, both ends of the crossbeam 2 are provided with diagonal braces 8, which are connected to the columns 1. This further improves the connection strength between the crossbeam 2 and the columns 1.

[0033] The method of using the hoisting device of this embodiment is as follows:

[0034] Initially, the lifting and supporting mechanism 3 and the lifting and supporting mechanism 6 remain in a retracted state. The hoisting device first moves to the lifting location via the traveling mechanism 5. The second telescopic member 61 is then extended to bring the second pad 62 into close contact with the ground. The extension distance of the second telescopic member 61 is adjusted according to the maximum height to be lifted. The first telescopic member 31 is then extended to bring the first pad 32 into close contact with the top plate. The component is then locked with the lifting lock 412 and connected to the hook 411. After the worker uses the hand chain hoist 41 to lift the component to the specified height, the locking mechanism 7 is used to lock the hand chain 413. The component is then removed. Finally, the hoisting device is restored to its initial state and moved to the next lifting location for lifting.

[0035] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the content of the present invention and are based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A lifting device, characterized in that: The utility model comprises a column (1), a beam (2) arranged at the top of the column (1), and a lifting mechanism (4) arranged on the beam (2); both ends of the beam (2) are provided with a lifting support mechanism (3), and both ends of the beam (2) are suspended from the column (1); a walking mechanism (5) is provided at the bottom of the column (1), and a lifting support mechanism (6) is provided at the bottom of the walking mechanism (5).

2. The hoisting device according to claim 1, characterized in that: The lifting and supporting mechanism (3) comprises a first telescopic member (31) and a first pad (32), wherein the bottom end of the first telescopic member (31) is arranged on the crossbeam (2), and the first pad (32) is arranged on the top end of the first telescopic member (31).

3. The hoisting device according to claim 2, characterized in that: The first pad (32) is a rubber plate, and the first telescopic member (31) is an oil cylinder, an air cylinder, or an electric cylinder.

4. The hoisting device according to claim 1, characterized in that: The walking mechanism (5) comprises a support seat (51) and a walking wheel (52) arranged at the bottom of the support seat (51); the bottom end of the column (1) is supported on the support seat (51); and the lifting and supporting mechanism (6) is arranged at the bottom of the support seat (51).

5. The hoisting device according to claim 4, characterized in that: The lifting and supporting mechanism (6) comprises a second telescopic member (61) and a second pad (62), wherein the top end of the second telescopic member (61) is arranged at the bottom end of the supporting seat (51), and the second pad (62) is arranged at the bottom end of the second telescopic member (61).

6. The hoisting device according to claim 5, characterized in that: The second pad (62) is a rubber plate, and the second telescopic member (61) is an oil cylinder, an air cylinder, or an electric cylinder.

7. The hoisting device according to any one of claims 1 to 6, characterized in that: The lifting mechanism (4) comprises a hand chain hoist (41), the hand chain hoist (41) is arranged on the crossbeam (2), and the hook (411) of the hand chain hoist (41) is equipped with a lifting lock (412).

8. The hoisting device according to claim 7, characterized in that: The column (1) is provided with a locking mechanism (7) for locking the hand chain (413) of the hand hoist (41).

9. The hoisting device according to claim 8, characterized in that: The locking mechanism (7) includes a locking block (71) and a locking rod (72), wherein the locking block (71) is provided on the column (1), a through hole (711) is provided on the locking block (71), the hand chain (413) is passed through the through hole (711), and the locking rod (72) is passed through the chain hole of the hand chain (413), and both ends thereof abut against the locking block (71) to prevent the hand chain (413) from retreating.

10. The hoisting device according to any one of claims 1 to 6, characterized in that: Both ends of the crossbeam (2) are provided with diagonal braces (8), and the diagonal braces (8) are connected to the upright columns (1).

Images