Portable lifting device and using method

Abstract

The invention provides a portable lifting device and a use method.The portable lifting device comprises a supporting part and a lifting part, the lifting part comprises a control assembly and a lifting line wound around the control assembly, the supporting part comprises a support body and an adjustable base, and the support body is movably connected with the adjustable base to adjust the height; the lifting line is in sliding connection with the support body. The invention provides a using method of a portable lifting device. The top height of a support body is adjusted, and the support body is fixed through an adjustable base; and the lifting line is connected with the to-be-lifted object, and the to-be-lifted object is lifted through the control assembly. The lifting device has the beneficial effects that large-size and heavy-weight objects can be quickly lifted in various construction environments, the lifting device can be suitable for different installation height requirements, the structure is simple, installation and movement are convenient, the installation efficiency can be improved, and the installation labor cost can be saved.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a portable lifting device and a use method thereof. Background Art

[0002] In the existing technology, when installing boxes with large volume, heavy weight or installation height requirements, construction projects often use chain or manual lifting. However, the fixed point is not easy to find when using chain. Manual handling requires the cooperation of multiple people, which is time-consuming and labor-intensive, and requires a lot of physical strength, and there are safety hazards. If the installation area is small or the environment is complex, the installation difficulty is increased, and the quality of the box lifting and installation cannot be guaranteed. There are technical problems such as the need for multiple people to work together during the lifting and installation of boxes with large volume, heavy weight or installation height requirements, and the high labor cost. The use of chain cannot be applied to the changing installation environment. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a portable lifting device and a method of use, which is particularly suitable for adjustment and fixation according to the construction environment and installation requirements, and can also save labor costs and ensure installation efficiency and quality.

[0004] The technical solution adopted by the present invention is: a portable lifting device, including a supporting part and a lifting part, the lifting part includes a control component and a lifting wire wound around the control component, the supporting part includes a bracket body and an adjustable base, the bracket body is movably connected to the adjustable base to adjust the height, and the lifting wire is slidably connected to the bracket body.

[0005] Furthermore, the support body includes a stand and a suspension arm, the adjustable base and the suspension arm are respectively connected to the stand, and the pulling line is slidably connected to the suspension arm.

[0006] Furthermore, the stand is telescopic to adjust the length, and the stand includes a plurality of vertical poles movably connected to each other, and the adjustable base and the suspension arm are respectively connected to the corresponding vertical poles.

[0007] Furthermore, the boom is retractable to adjust its length, and the boom includes a plurality of cross bars movably connected to each other, the upright frame is connected to the corresponding cross bars, and the pulling line is slidably connected to at least one cross bar.

[0008] Furthermore, the stand is rotatably connected to the boom.

[0009] Furthermore, the lifting part also includes a positioning wheel assembly, and the lifting line is slidably connected to the bracket body through the positioning wheel assembly.

[0010] Furthermore, the control component includes a wire drum rotatably connected to the bracket body, the wire drum is provided with a crank, and the pulling wire is wound around the wire drum.

[0011] Furthermore, the present invention also provides a method for using a portable lifting device, comprising the following steps:

[0012] Adjust the height of the top of the stand body and fix it through the adjustable base;

[0013] The lifting line is connected to the object to be lifted and the object to be lifted is lifted through the control component.

[0014] The advantages and positive effects of the present invention are: due to the adoption of the above-mentioned technical scheme, large-volume and heavy-weight boxes can be quickly lifted in various construction environments, and can also be applied to different installation height requirements; it has the advantages of simple structure, convenient installation and movement, which can improve installation efficiency and save installation labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0016] Figure 2 is a schematic diagram of a usage scenario of an embodiment of the present invention;

[0017] Figure 3 is a structural schematic diagram of another embodiment of the present invention;

[0018] In the figure:

[0019] 1. Lifting wire 2. Adjustable base 3. Lifting arm

[0020] 4. Positioning wheel assembly 7. Hook 8. Building base plate

[0021] 9. Building side wall 10 Object to be lifted 21. Fixed seat

[0022] 22. Adjustment rod 51, bobbin 52, crank

[0023] 53, bobbin rack 61, first vertical pole 62, second vertical pole

[0024] 63, third vertical pole 71, lighting component 521, crank limiter

[0025] 611, adjusting bolt 621, adjusting hole 23, positioning piece DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described below in conjunction with the drawings. The described embodiments are only a part of the embodiments of the invention, rather than all the embodiments.

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0028] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, and may refer to direct connection, installation or fixation, or indirect connection, installation or fixation, and the present invention does not limit this.

[0029] In the description of the present invention, it is necessary to understand that the terms "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 drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the structure or unit 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.

[0030] Embodiment 1:

[0031] like Figure 1 to Figure 2 As shown, a schematic diagram of an embodiment of a portable lifting device of the present invention includes a support part and a lifting part, the lifting part includes a control component and a lifting wire 1 wound around the control component, the support part includes a bracket body and an adjustable base 2, the bracket body is movably connected to the adjustable base 2 to adjust the top height of the bracket body, and the lifting wire 1 is slidably connected to the bracket body. Preferably, the adjustable base 2 includes a fixed seat 21, an adjustment rod 22 with a thread, and a positioning member 23 that can be threaded with the adjustment rod 22, the positioning member 23 can be prepared by an adjustment nut, the fixed seat 21 is movably connected to the bracket body through the adjustment rod 22 and fixed by the positioning member 23. The fixed seat 21 is connected to the adjustment rod 22, the bracket body can be movably sleeved outside the adjustment rod 22, the positioning member 23 is arranged between the bracket body and the fixed seat 21, and the rotating positioning member 23 can move along the length direction of the adjustment rod 22 to adjust the top height of the bracket body. This embodiment can achieve the function of adjusting the top height of the bracket body through threaded cooperation. This embodiment can not only meet the requirements of different installation heights through threaded matching, but also ensure the stability during fixation and the accuracy of height adjustment. It can be fixed according to construction needs through the adjustable base 2 and is suitable for different installation height requirements, which can improve construction efficiency and quality, has wide applicability, and is easy to promote and apply.

[0032] In this embodiment, the support body includes a stand and a suspension arm 3, the adjustable base 2 and the suspension arm 3 are respectively connected to the stand, and the pull line 1 is slidably connected to the suspension arm 3. In this embodiment, the pull line 1 can also be slidably connected to the stand, and the control component is connected to the stand for easy control operation. The stand is movably sleeved outside the adjustment rod 22 and fixed by a positioning member 23.

[0033] In this embodiment, the stand can be extended and retracted to adjust the length. The stand includes a plurality of mutually movably connected vertical poles, and the adjustable base 2 and the boom 3 are respectively connected to the corresponding vertical poles. In this embodiment, the stand includes a first vertical pole 61 and a second vertical pole 62. The two ends of the first vertical pole 62 are respectively connected to the boom 3 and the second vertical pole 62, and the first vertical pole 61 and the second vertical pole 62 are movably connected to be extended and retracted, which is used to quickly adjust the length of the stand. The adjustable base 2 is connected to the first vertical pole 61 through the second vertical pole 62, and the control assembly is connected to the second vertical pole 62. Preferably, the first vertical pole 61 can be movably sleeved with the second vertical pole 62 and fixed by screwing in the adjustment bolt 611. In this embodiment, the second vertical pole 62 is provided with a plurality of adjustment holes 621, and the first vertical pole is provided with a positioning hole, and the positioning hole can correspond to any adjustment hole 621 and be fixed by inserting the adjustment bolt 611. This embodiment facilitates the rapid adjustment of the height of the boom 3, which can improve the construction efficiency. In this embodiment, the stand also includes a third upright pole 63, one end of the third upright pole 63 is connected to the second upright pole 62, and the other end is movably mounted outside the adjusting rod 22 and fixed by a positioning member 23. The assembly of multiple upright poles can reduce the space occupied by a single component, making it easier to transport or store after disassembly. In other embodiments, the number of upright poles can be increased or decreased as needed, such as movably mounting the bottom of the second upright pole 62 outside the adjusting rod 22 and fixing it by a positioning member 23.

[0034] In another embodiment, the boom 3 is retractable to adjust the length, and the boom 3 includes a plurality of crossbars movably connected to each other, the frame is connected to the corresponding crossbars, and the lifting wire 1 is slidably connected to at least one crossbar. The retractable boom 3 can improve the flexibility of the installation of the portable lifting device. When the ground installation environment is limited or the adjustable base 2 is located farther away from the building side wall 9, the object 10 to be lifted can be moved to a specified position by adjusting the length of the boom 3.

[0035] In another embodiment, the stand can also be rotatably connected to the boom 3, and the boom 3 can be unfolded to lift objects or folded to reduce occupied space, which not only improves applicability but also facilitates movement or storage.

[0036] In this embodiment, the lifting part also includes a positioning wheel assembly 4, and the lifting line 1 is slidably connected to the bracket body through the positioning wheel assembly 4. In this embodiment, the number of positioning wheel assemblies 4 is multiple to form multi-stage steering positioning of the lifting line 1, wherein a positioning wheel assembly 4 is set at the intersection of the vertical frame and the boom 3, that is, a positioning wheel assembly 4 is set at the intersection of the first vertical rod 61 and the boom 3; a positioning wheel assembly 4 is also set at the end of the boom 3 away from the vertical frame, and one end of the lifting line 1 is wound around the control assembly and the other end of the lifting line 1 passes through multiple positioning wheel assemblies 4 in turn and is connected to the box body waiting to lift the object 10. Multiple positioning wheel assemblies 4 can reduce the problems of swing and jamming of the lifting line 1.

[0037] In this embodiment, the control assembly includes a bobbin 51 rotatably connected to the support body, a crank 52 is provided on the bobbin 51, and the pulling line 1 is wound around the bobbin 51. In this embodiment, the control assembly also includes a bobbin frame 53, which is connected to the support body, specifically, the bobbin frame 53 is connected to the second vertical rod 62, the bobbin 51 is rotatably connected to the bobbin frame 53, and the crank 52 is connected to the bobbin 51 for driving.

[0038] In this embodiment, a hook 7 is further provided at the end of the lifting wire 1 for lifting, so as to facilitate the lifting and installation of objects such as boxes.

[0039] On the other hand, the present invention also provides a method for using a portable lifting device, comprising the following steps:

[0040] Adjust the height of the top of the bracket body and fix it through the adjustable base 2;

[0041] The pulling line 1 is connected to the object 10 to be lifted and the object 10 to be lifted is pulled upward by the control component.

[0042] The working process of this embodiment is as follows:

[0043] Move the portable lifting device to a predetermined position and place the support body on the building floor 8 via the adjustable base 2;

[0044] According to the requirements of the building floor height and lifting height on site, the length of the bracket body is adjusted, the positioning hole is matched with the matching adjustment hole 621 and the adjustment bolt 611 is inserted to achieve the coarse adjustment of the length of the bracket body. When the length of the bracket body needs to be fine-tuned, the positioning member 23 can be rotated to fine-tune the height of the top of the bracket body so that the boom 3 corresponds to the building roof;

[0045] The hook 7 is connected to the object 10 to be lifted, and the crank 52 is turned to make the box wait for the object 10 to be lifted to rise to a specified height.

[0046] The present invention is reusable, cost-saving, simple in structure, easy to carry and install, and has an adjustable structure to adapt to complex installation environments and installation requirements. It can reduce the box body, etc., improve the labor cost and construction efficiency of the installation process, reduce the physical energy consumption of the installers, and ensure construction safety.

[0047] Embodiment 2:

[0048] In this embodiment, a lighting member 71 is further included, and the lighting member 71 is connected to the supporting portion or the lifting portion, such as the lighting member 71 is connected to the hook 7 to be suitable for different installation environments. The lighting member 71 can be made of LED lamps, which are easy to assemble and low in cost.

[0049] In this embodiment, the control assembly further includes a crank limiter 521, which is rotatably connected to the bobbin rack 53; preferably, the bobbin rack 53 is provided with a receiving space to accommodate the crank limiter 521. When the crank 52 is rotated to lift an object, the crank limiter 521 is arranged in the receiving space; when the object 10 to be lifted is lifted to a predetermined height, the crank limiter 521 can be rotated to extend to prevent the crank 52 from rotating, and the double protection can improve the safety of the construction process.

[0050] In this embodiment, the lifting part further includes an auxiliary sling, which is detachably connected to the hook 7. The auxiliary sling can be used to surround the outer side of the box and cooperate with the hook 7 to improve the lifting stability and prevent the box from tilting.

[0051] The present invention can quickly lift large-volume and heavy-weight boxes in various construction environments, and can also be applied to different installation height requirements.

[0052] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A portable lifting device, comprising a supporting portion and a lifting portion, wherein the lifting portion comprises a control component and a lifting wire wound around the control component, characterized in that: The support part includes a support body and an adjustable base, the support body is movably connected to the adjustable base to adjust the height, and the lifting line is slidably connected to the support body.

2. The portable lifting device according to claim 1, characterized in that: The support body comprises a stand and a suspension arm, the adjustable base and the suspension arm are respectively connected to the stand, and the pulling line is slidably connected to the suspension arm.

3. The portable lifting device according to claim 2, characterized in that: The stand is telescopic to adjust the length, and comprises a plurality of stand poles movably connected to each other, and the adjustable base and the suspension arm are respectively connected to the corresponding stand poles.

4. The portable lifting device according to claim 2, characterized in that: The boom is retractable to adjust its length, and comprises a plurality of cross bars movably connected to each other, the upright frame is connected to the corresponding cross bars, and the pulling line is slidably connected to at least one of the cross bars.

5. The portable lifting device according to claim 2, characterized in that: The stand is rotatably connected to the suspension arm.

6. The portable lifting device according to any one of claims 1 to 5, characterized in that: The lifting part further includes a positioning wheel assembly, and the lifting wire is slidably connected to the bracket body through the positioning wheel assembly.

7. The portable lifting device according to any one of claims 1 to 5, characterized in that: The control assembly comprises a wire drum rotatably connected to the support body, the wire drum is provided with a crank, and the pulling wire is wound around the wire drum.

8. A method for using a portable lifting device, comprising the portable lifting device according to any one of claims 1 to 5, characterized in that: The usage steps include: Adjust the height of the top of the bracket body and fix it through the adjustable base; The lifting line is connected to the object to be lifted and the object to be lifted is lifted through the control component.

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