Simple lifting device suitable for indoor lifting

Abstract

The utility model provides a simple hoisting device suitable for indoor hoisting, wherein the portal frame body comprises a plurality of rod bodies, the plurality of rod bodies are combined into a frame structure, and the portal frame body has a first end and a second end arranged along the length direction. The hoisting support arm is arranged at the first end along the height direction of the portal frame body. The hoisting arm is connected to the top end of the hoisting support arm, the hoisting end of the hoisting arm extends out of the first end, and the load-bearing end of the hoisting arm is connected to the rod body at the top of the second end. The jacking mechanism is arranged at the top of the second end and can be lifted and abut against the external structural floor. The simple hoisting device suitable for indoor hoisting described above takes the portal steel frame as the equipment frame body, supports instead of the lifting point through the jacking mechanism, takes the power hoist as the power source, combines the hoisting support arm and the hoisting arm, and realizes the hoisting operation of various indoor spaces while lightening the equipment.

Description

Technical Field

[0001] This utility model relates to the field of hoisting machinery, and in particular to a simple lifting device suitable for indoor hoisting. Background Technology

[0002] Currently, there are generally two common methods for indoor hoisting: The first method involves setting up hoisting points on the existing structure and then using a chain hoist. This method requires creating hoisting points on the existing structure at each hoisting location by driving in expansion bolts or similar methods. Therefore, it is limited by the existing structure, and each hoisting location requires a separate hoisting point.

[0003] The second method involves using prefabricated indoor hoisting equipment. Prefabricated hoisting equipment can generally be moved and hoisted indoors without the need for separate hoisting points. However, prefabricated hoisting equipment is generally quite heavy, so the load-bearing capacity of the indoor floor slab must be considered, and other hoisting equipment is required to access the indoor work area.

[0004] Therefore, there is an urgent need for a simple lifting device with a simple structure that does not require indoor lifting points and is suitable for indoor hoisting. Utility Model Content

[0005] The main purpose of this utility model is to provide a simple lifting device suitable for indoor hoisting, so as to solve the technical problems of existing indoor hoisting that require setting up lifting points or having a large self-weight.

[0006] To achieve the above objectives, this utility model provides a simple lifting device suitable for indoor hoisting, comprising:

[0007] A portal frame includes multiple poles that are combined to form a frame structure. The portal frame has a first end and a second end arranged along its length.

[0008] The lifting support arm is disposed at the first end along the height direction of the gantry frame.

[0009] A lifting boom is connected to the top of the lifting support arm. The lifting end of the lifting boom extends out of the first end, and the bearing end of the lifting boom is connected to the rod at the top of the second end.

[0010] The top support mechanism, located at the top of the second end, is capable of lifting and supporting the external structural floor slab.

[0011] The lifting assembly includes a first steering pulley, a second steering pulley, a power hoist, and a lifting wire rope. The first steering pulley is located below the lifting end, and the second steering pulley is located below the lifting support arm. The lifting wire rope is wound around the first steering pulley and the second steering pulley in sequence and then connected to the power hoist.

[0012] According to an embodiment of this application, it also includes a lifting mechanism and a lifting arm fixing plate, wherein the lifting support arm is connected to the gantry frame through the lifting mechanism.

[0013] The boom fixing plate is rotatable around the top of the lifting support arm, the boom passes through and is fixed to the boom fixing plate, and the bearing end of the boom is rotatable around the top of the second end of the rod.

[0014] According to an embodiment of this application, the lifting mechanism includes a limiting plate and a limiting plate fixed to the first end of the gantry frame along the height direction. The limiting plate and the limiting plate have positioning holes. The lifting support arm is inserted into two of the positioning holes. The side of the lifting support arm has multiple limiting holes distributed along the height direction. The arm is fixed to the limiting plate by a pin passing through the limiting holes.

[0015] According to an embodiment of this application, the side of the lifting support arm has a first ear plate, and the lifting mechanism further includes an adjusting hoist, which is suspended from the top of the gantry frame and the hook is connected to the first ear plate.

[0016] According to an embodiment of this application, the portal frame is a rectangular frame, and the multiple members include longitudinal members, lateral members, vertical members, and diagonal members. The longitudinal members, lateral members, and vertical members form the outer contour of the rectangular frame, and the diagonal members are connected to the outer peripheral surface of the rectangular frame.

[0017] The simple lifting device suitable for indoor hoisting also includes a support rod and a short rod. The support rod fixes the limiting fixing plate and the width rod along the height direction, and the short rod fixes the limiting fixing plate and the diagonal rod along the width direction.

[0018] According to an embodiment of this application, a plurality of the wide-axis rods are provided at the top of the first end of the gantry frame, the limiting plate is fixed on two of the wide-axis rods, and the adjusting hoist is suspended on the other wide-axis rod.

[0019] According to an embodiment of this application, a bottom steel plate is also included.

[0020] There are two support rods, symmetrically arranged about the limiting and fixing plate. The bottom steel plate is fixed to the bottom of the support rods.

[0021] According to an embodiment of this application, the system further includes a brakeable caster and a pad. The brakeable caster is disposed at the bottom of the upright, and the pad is disposed between the bottom steel plate and the floor.

[0022] According to an embodiment of this application, there are two top support mechanisms, which are respectively disposed on the top of the two vertical rods.

[0023] According to an embodiment of this application, the power hoist is suspended on a second lug plate on the lifting arm.

[0024] In the aforementioned simple lifting device suitable for indoor hoisting, after being moved to the hoisting position, the frame is raised and supported against the structural floor slab by a top support mechanism to ensure stability. The lifting wire rope is located below the first end of the lifting arm and is connected to the load. The lifting wire rope is manually operated via a power hoist, which guides the load through the first and second steering pulleys to lift and lower it. This simple lifting device for indoor hoisting uses a portal steel frame as the equipment frame, with a top support mechanism replacing the lifting point. A power hoist serves as the power source, and combined with a lifting support arm and lifting arm, it achieves hoisting operations in various indoor spaces while maintaining a lightweight design. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a structural schematic diagram of a simple lifting device suitable for indoor hoisting according to one embodiment of this application.

[0027] 1. Gantry frame; 2. Lifting support arm; 3. Lifting arm; 41. First steering pulley; 42. Second steering pulley; 5. Power hoist; 6. Adjustable hoist; 7. Lifting wire rope; 10. Long strut; 11. Vertical strut; 12. Wide strut; 13. Diagonal brace; 14. Support rod; 15. Bottom steel plate; 16. Limiting and fixing plate; 17. Limiting plate; 18. Brakeable caster; 19. Top support mechanism; 20. Short rod; 21. Pin; 22. Lifting arm fixing plate; 23. First ear plate; 31. Second ear plate; 32. Rotating fixing plate.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that all directional indicators (such as up, down, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0032] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] This utility model provides a simple lifting device suitable for indoor hoisting, see [link to relevant documentation]. Figure 1 The system includes a gantry frame 1, a lifting support arm 2, a lifting arm 3, a top support mechanism 19, and a lifting assembly. The gantry frame 1 comprises multiple rods arranged to form a frame structure, and has a first end and a second end along its length. The lifting support arm 2 is located at the first end along the height direction of the gantry frame 1. The lifting arm 3 is connected to the top of the lifting support arm 2, with its lifting end extending beyond the first end, and its load-bearing end connected to a rod at the top of the second end. The top support mechanism 19 is located at the top of the second end and is capable of lifting and supporting the external structural floor slab. The lifting assembly includes a first steering pulley 41, a second steering pulley 42, a power hoist 5, and a lifting wire rope 7. The first steering pulley 41 is located below the lifting end, and the second steering pulley 42 is located below the lifting support arm 2. The lifting wire rope 7 is wound around the first steering pulley 41 and the second steering pulley 42 in sequence and then connected to the power hoist 5.

[0034] Multiple poles are combined to form a frame structure, which simplifies the structure of the gantry frame 1, makes it easier to manufacture, and ensures more secure installation. The connection point between the lifting boom 3 and the lifting support boom 2 is the fulcrum of the lifting boom 3. The distance from the lifting end to this connection point is less than the distance from the bearing end to this connection point, resulting in a longer torque at the bearing end, thus enabling the gantry frame 1 to bear heavier loads.

[0035] The support mechanism 19 is capable of rising and falling to accommodate structural floor slabs of different heights and to hold the structural floor slab in place. The support mechanism 19 may include a lead screw and a top block located at the end of the lead screw. The top block is held in place by the rising and falling of the lead screw.

[0036] The middle part of the lifting wire rope 7 is wound around the first guide pulley 41 and the second guide pulley 42. One end is equipped with a hook, and the other end is connected to the power hoist 5. The load is hung on the hook and located below the lifting end. The power hoist 5 is manually operated to control the lifting wire rope 7 to lift and lower the load by passing through the first guide pulley 41 and the second guide pulley 42.

[0037] In the aforementioned simple lifting device suitable for indoor hoisting, after being moved to the hoisting position, the top support mechanism 19 is used to raise and support the structural floor slab to ensure the stability of the frame. The lifting wire rope 7 is located below the first end of the lifting arm 3 and is connected to the load. The lifting wire rope 7 is manually operated by the power hoist 5 to control the lifting wire rope 7 through the first guide pulley 41 and the second guide pulley 42 to achieve the lifting and lowering of the load. The aforementioned simple lifting device suitable for indoor hoisting uses a portal steel frame as the equipment frame, and the top support mechanism 19 is used for support instead of the hoisting point. The power hoist 5 is used as the power source. Combined with the lifting support arm 2 and the lifting arm 3, it can achieve hoisting operations in various indoor spaces while keeping the equipment lightweight.

[0038] In some embodiments, see Figure 1 It also includes a lifting mechanism and a lifting arm 3 fixing plate. The lifting support arm 2 is connected to the gantry frame 1 through the lifting mechanism. The lifting arm 3 fixing plate can rotate around the top of the lifting support arm 2. The lifting arm 3 passes through and is fixed to the lifting arm 3 fixing plate. The bearing end of the lifting arm 3 can rotate around the top of the second end of the rod.

[0039] The lifting boom 3 fixing plate is located at the top of the lifting support boom 2. The fixing plate can rotate around the top of the lifting support boom 2 and has a hole in the middle. If the load-bearing end of the lifting boom 3 is connected to the top of the second end of the gantry frame 1 through the rotating fixing plate 32, the lifting boom 3 can rotate around the rotating fixing plate 32. The lifting end of the lifting boom 3 passes through the lifting boom 3 fixing plate of the lifting support boom 2, realizing synchronous height adjustment of the lifting boom 3 and the lifting support boom 2.

[0040] For example, the rotating fixing plate 32 has a collar structure that is sleeved on the outside of the rod, so that the rotating fixing plate 32 can rotate around the rod.

[0041] This design allows the lifting support arm 2 to be raised and lowered, and the fixed plate and bearing end of the lifting arm 3 can rotate around their corresponding connections to accommodate the raising and lowering of the lifting support arm 2. This also allows the height of the lifting end to be changed, enabling the lifting of heavy objects to different heights.

[0042] In some embodiments, see Figure 1 The lifting mechanism includes a limiting plate 16 and a limiting plate 17 fixed to the first end of the gantry frame 1 along the height direction. The limiting plate 16 and the limiting plate 17 have positioning holes. The lifting support arm 2 is inserted into two of the positioning holes. The side of the lifting support arm 2 has multiple limiting holes distributed along the height direction. It is fixed to the limiting plate 16 by a pin 21 passing through the limiting holes.

[0043] In this embodiment, the height of the lifting support arm 2 is precisely adjusted through the design of positioning holes and limiting holes. The fixing method of the pin 21 ensures the stability of the lifting support arm 2 after adjustment. The lifting support arm 2 is positioned through two positioning holes. After being raised to the target height, the pin 21 is inserted for limiting, thus achieving the limiting purpose. This lifting mechanism has a simple structure and high reliability.

[0044] In some embodiments, the side of the lifting support arm 2 has a first ear plate 23, and the lifting mechanism further includes an adjusting hoist 6, which is suspended from the top of the gantry frame 1, and the hook is connected to the first ear plate 23.

[0045] The adjustable hoist 6 provides additional adjustment power, making the process of adjusting the height of the lifting support boom 2 less strenuous. Connected via the hoist's hook, operation is simple and lifting efficiency is improved.

[0046] In some embodiments, the portal frame 1 is a rectangular frame, with multiple rods including longitudinal rods 10, lateral rods 12, vertical rods 11, and diagonal rods 13. The longitudinal rods 10, lateral rods 12, and vertical rods 11 form the outer contour of the rectangular frame, and the diagonal rods 13 are connected to the outer periphery of the rectangular frame. The simple lifting device suitable for indoor hoisting also includes a support rod 14 and a short rod 20. The support rod 14 fixes the limiting fixing plate 16 to the lateral rod 12 along the height direction, and the short rod 20 fixes the limiting fixing plate 16 to the diagonal rod 13 along the width direction.

[0047] The design of the rectangular frame and diagonal brace 13 improves the stability of the portal frame 1. The support rod 14 and short rod 20 further reinforce the connection of the limiting and fixing plate 16, ensuring the stability of the overall structure.

[0048] In some embodiments, see Figure 1 The top of the first end of the gantry frame 1 is provided with multiple wide rods 12, the limiting plate 17 is fixed on two wide rods 12, and the adjusting hoist 6 is suspended on another wide rod 12.

[0049] For example, the limiting plate 17 is connected to two wide horizontal rods 12 and fixed firmly. The adjusting hoist 6 is suspended on the third wide horizontal rod 12. This layout is reasonable, and the reasonable arrangement of the limiting plate 17 and the adjusting hoist 6 makes operation more convenient and improves space utilization.

[0050] In some embodiments, see Figure 1 It also includes a bottom steel plate 15. There are two support rods 14, symmetrically arranged about the limiting and fixing plate 16. The bottom steel plate 15 is fixed to the bottom of the support rods 14.

[0051] The bottom steel plate 15 provides a stable support foundation, ensuring the stability of the entire device. There are two support rods 14, which are set on both sides of the bottom of the lifting support arm 2 to limit its circumferential movement.

[0052] In some embodiments, the device further includes brakeable casters 18 and pads. The brakeable casters 18 are located at the bottom of the vertical support 11, and the pads are located between the bottom steel plate 15 and the floor. The brakeable casters 18 allow the device to be easily moved to the desired position, and the brake pads can be lowered upon arrival. For example, the gantry frame 1 is moved and fixed using the brakeable casters 18. After being moved into position, the top support mechanism 19 on the rear vertical support 11 of the gantry frame 1 is adjusted to support the structural floor slab, and a pad (such as a steel plate) is placed under the bottom steel plate 15. In this way, the gantry frame 1 is secured from both the top support mechanism 19 and the bottom steel plate 15 from both the top and bottom directions, at both the first and second ends, resulting in even force distribution and a secure fixation.

[0053] In some embodiments, see Figure 1 There are two top support mechanisms 19, which are respectively set on the top of the two vertical rods 11.

[0054] The two top support mechanisms 19 can evenly support the external structural floor slab, improving the stability of the hoisting process. The double support design increases the safety of the hoisting process.

[0055] In some embodiments, the power hoist 5 is suspended from the second lug 31 on the lifting boom 3. The suspension position of the power hoist 5 allows for more flexible lifting operations while reducing swaying during the lifting process. A reasonable suspension position improves lifting efficiency and reduces operation time.

[0056] The above technical solutions of this utility model are merely preferred embodiments and do not limit the patent scope of this utility model. All equivalent structural transformations made under the technical concept of this utility model using the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this utility model.

Claims

1. A simple lifting device suitable for indoor hoisting, characterized in that, include: A portal frame includes multiple poles that are combined to form a frame structure. The portal frame has a first end and a second end that are arranged along its length. A lifting support arm is provided at the first end along the height direction of the gantry frame; A lifting boom is connected to the top of the lifting support arm, the lifting end of the lifting boom extends out of the first end, and the bearing end of the lifting boom is connected to the rod at the top of the second end; A support mechanism, located at the top of the second end, is capable of rising and falling to support the external structural floor slab; The lifting assembly includes a first steering pulley, a second steering pulley, a power hoist, and a lifting wire rope. The first steering pulley is located below the lifting end, and the second steering pulley is located below the lifting support arm. The lifting wire rope is wound around the first steering pulley and the second steering pulley in sequence and then connected to the power hoist.

2. The simple lifting device suitable for indoor hoisting according to claim 1, characterized in that, It also includes a lifting mechanism and a crane arm fixing plate, wherein the crane support arm is connected to the gantry frame through the lifting mechanism; The boom fixing plate is rotatable around the top of the lifting support arm, the boom passes through and is fixed to the boom fixing plate, and the bearing end of the boom is rotatable around the top of the second end of the rod.

3. The simple lifting device suitable for indoor hoisting according to claim 2, characterized in that, The lifting mechanism includes a limiting plate and a limiting plate fixed to the first end of the gantry frame along the height direction. The limiting plate and the limiting plate have positioning holes. The lifting support arm is inserted into two of the positioning holes. The side of the lifting support arm has multiple limiting holes distributed along the height direction. The arm is fixed to the limiting plate by a pin passing through the limiting holes.

4. The simple lifting device suitable for indoor hoisting according to claim 3, characterized in that, The lifting support arm has a first ear plate on its side, and the lifting mechanism also includes an adjusting hoist, which is suspended from the top of the gantry frame and the hook is connected to the first ear plate.

5. The simple lifting device suitable for indoor hoisting according to claim 4, characterized in that, The portal frame is a rectangular frame with multiple members including longitudinal members, lateral members, vertical members, and diagonal members; the longitudinal members, lateral members, and vertical members form the outer contour of the rectangular frame, and the diagonal members are connected to the inner surface of the outer perimeter of the rectangular frame; The simple lifting device suitable for indoor hoisting also includes a support rod and a short rod. The support rod fixes the limiting fixing plate and the width rod along the height direction, and the short rod fixes the limiting fixing plate and the diagonal rod along the width direction.

6. The simple lifting device suitable for indoor hoisting according to claim 5, characterized in that, The top of the first end of the gantry frame is provided with multiple wide-axis rods, the limiting plate is fixed on two wide-axis rods, and the adjusting hoist is suspended on the other wide-axis rod.

7. The simple lifting device suitable for indoor hoisting according to claim 5, characterized in that, It also includes the bottom steel plate; The number of support rods is two, which are symmetrically arranged about the limiting and fixing plate; the bottom steel plate is fixed to the bottom of the support rods.

8. The simple lifting device suitable for indoor hoisting according to claim 7, characterized in that, It also includes a brakeable caster and a pad; the brakeable caster is located at the bottom of the upright, and the pad is located between the bottom steel plate and the floor.

9. The simple lifting device suitable for indoor hoisting according to claim 5, characterized in that, There are two top support mechanisms, each located on top of one of the two vertical supports.

10. A simple lifting device suitable for indoor hoisting according to any one of claims 1 to 9, characterized in that, The power hoist is suspended on the second lug plate of the lifting arm.

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