Small portable hoisting equipment

Abstract

The utility model discloses small portable hoisting equipment, which relates to the technical field of hoisting equipment, and comprises a base and a stand column, the top of the stand column is movably connected with a lifting arm, and a hydraulic cylinder is further in transmission connection between the lifting arm and the stand column. Two ends of the hydraulic cylinder are movably connected with the side surface of the upright post and the side surface of the lifting arm respectively; the device is characterized in that the base comprises a U-shaped frame welded to the bottom of the stand column, a cross beam is fixedly connected to the side face of the U-shaped frame, adjusting supports are symmetrically and movably connected to the side, away from the cross beam, of the U-shaped frame, and a threaded support is movably connected between the symmetrical adjusting supports; according to the utility model, the threaded lead screw is rotated through the rotating handle, and the U-shaped seat is moved through the threaded fit between the threaded lead screw and the threaded sleeve, so that the distance between the two symmetrically arranged adjusting brackets is adjusted, and the situation that the hook cannot be positioned above a hoisted object due to the small distance between the adjusting brackets is prevented.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of lifting equipment, in particular to a small portable lifting equipment. Background Art

[0002] Lifting equipment is a kind of mechanical equipment that plays a key role in many fields such as industrial production, construction engineering, logistics and transportation. It is mainly used to lift and move heavy objects. Among them, the most commonly used is small lifting equipment. Small portable lifting equipment is a kind of lifting tool with the characteristics of being small, flexible, easy to carry and operate. Some components are generally made of lightweight materials. The overall weight is relatively light, which is convenient for manual handling and movement.

[0003] However, in practice, people have noticed that the bases of currently commonly used lifting equipment are generally welded frames, and due to the small size of small lifting equipment, it is impossible to ensure that the hook is directly above the hoisted object before lifting. When the hook and the hoisted object are set at an angle, during the lifting process, the hoisted object will move closer to the lifting equipment due to gravity, causing the hoisted object to shake during lifting. In addition, the hoisted object is heavy, and there are greater safety hazards when workers hold it by hand, resulting in the shaking easily bumping into surrounding workers, causing safety accidents. Utility Model Content

[0004] The purpose of this utility model is to provide a small portable lifting device with an adjustable width base. Before lifting, the hook is positioned close to the top of the hoisted object, so that the hoisted object can be lifted vertically as much as possible during lifting, preventing the hoisted object from shaking during lifting. This solves the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A small portable lifting device includes a base and a column. The top of the column is movably connected to a lifting arm. A hydraulic cylinder is also transmission-connected between the lifting arm and the column. The two ends of the hydraulic cylinder are movably connected to the side of the column and the side of the lifting arm respectively.

[0007] It is characterized in that the base includes a U-shaped frame welded to the bottom of the column, the side of the U-shaped frame is fixedly connected to the beam, the side of the U-shaped frame away from the beam is symmetrically connected to the adjustment bracket, and the symmetrical adjustment brackets are movably connected with threaded brackets.

[0008] As a further technical solution of the present invention, the adjustment bracket includes a bottom beam, the end of the bottom beam is inserted into the U-shaped frame, and the end of the bottom beam is movably connected to the U-shaped frame through a pin shaft. An end of the bottom beam close to the U-shaped frame is also provided with an axial hole that cooperates with the pin shaft.

[0009] As a further technical solution of the present invention, a connecting rod is provided on the side of the bottom beam, and a hinge shaft is provided between the bottom beam and the connecting rod, and both ends of the hinge shaft are fixedly connected to the bottom beam and the connecting rod respectively.

[0010] As a further technical solution of the present invention, the threaded bracket includes a U-shaped seat, and the end of the connecting rod away from the hinge axis is movably connected to the U-shaped seat. The end of the U-shaped seat away from the connecting rod is movably connected to a threaded screw, and the other end of the threaded screw is sleeved with a threaded sleeve.

[0011] As a further technical solution of the present invention, the end of the threaded sleeve is integrally provided with a fixing seat, and a hole corresponding to the threaded screw is opened in the fixing seat. The threaded screw is threadedly matched with the threaded sleeve, and the end of the threaded screw is inserted into the hole.

[0012] As a further technical solution of the present invention, the fixing seat is arranged in the U-shaped frame, and the fixing seat is fixedly connected to the U-shaped frame;

[0013] The sides of the crossbeam and the U-shaped frame are respectively provided with extension holes and through holes corresponding to the holes.

[0014] As a further technical solution of the present invention, the bottom of the base is also fixedly connected to a universal wheel, and there are multiple universal wheels, which are respectively fixedly connected to the two ends of the cross beam, the end of the bottom beam and the bottom of the U-shaped seat.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The U-shaped seat is moved by rotating the screw rod by rotating the handle and the screw thread cooperation between the screw rod and the screw sleeve, thereby adjusting the distance between the two symmetrically arranged adjustment brackets to prevent the hook from being unable to be located above the hoisted object due to the small distance between the adjustment brackets; the utility model can change the floor space of the lifting equipment by swinging the bottom beam, which is convenient for storage and carrying, and cooperates with the universal wheels at the bottom to facilitate the maximum movement of the lifting equipment; the utility model is also provided with universal wheels at the bottom of the U-shaped seat to support the U-shaped seat and distribute the force of the lifting equipment, and the universal wheels at both ends of the cross beam, the universal wheels at the end of the bottom beam and the universal wheels at the bottom of the U-shaped seat cooperate with each other to evenly distribute the force of the entire lifting equipment on the multiple universal wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model in use state.

[0018] Figure 2 This utility model Figure 1 Another perspective of the picture.

[0019] Figure 3 This utility model Figure 2 A partial enlargement of the diagram.

[0020] Figure 4 It is a schematic diagram of the position structure of the adjusting bracket and the threaded bracket in the utility model.

[0021] Figure 5 This utility model Figure 4 Another perspective of the picture.

[0022] Figure 6 This utility model Figure 5 A partial enlarged schematic diagram.

[0023] In the picture:

[0024] Crossbeam 1, U-shaped frame 2, column 3, lifting arm 4, hydraulic cylinder 5, hook 6, adjusting bracket 7, bottom beam 71, shaft hole 72, hinge shaft 73, connecting rod 74, threaded bracket 8, U-shaped seat 81, threaded screw 82, rotating handle 821, threaded sleeve 83, fixing seat 84, hole 85, universal wheel 9. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-6 The embodiment of the utility model provides a small portable lifting device, including a base and a column 3, the top of the column 3 is movably connected to a lifting arm 4, a hydraulic cylinder 5 is further connected between the lifting arm 4 and the column 3, and the two ends of the hydraulic cylinder 5 are movably connected to the side of the column 3 and the side of the lifting arm 4 respectively;

[0027] It is characterized in that the base includes a U-shaped frame 2 welded to the bottom of the column 3, the side of the U-shaped frame 2 is fixedly connected to the beam 1, the side of the U-shaped frame 2 away from the beam 1 is symmetrically movably connected to the adjustment bracket 7, and the symmetrical adjustment brackets 7 are movably connected with threaded brackets 8.

[0028] In this embodiment, the adjustment bracket 7 includes a bottom beam 71, the end of the bottom beam 71 is inserted into the U-shaped frame 2, and the end of the bottom beam 71 is movably connected to the U-shaped frame 2 through a pin shaft. The end of the bottom beam 71 close to the U-shaped frame 2 is also provided with an axial hole 72 that cooperates with the pin shaft.

[0029] Furthermore, a connecting rod 74 is provided on the side of the bottom beam 71 , and a hinge shaft 73 is provided between the bottom beam 71 and the connecting rod 74 , and both ends of the hinge shaft 73 are fixedly connected to the bottom beam 71 and the connecting rod 74 respectively.

[0030] In this embodiment, the threaded bracket 8 includes a U-shaped seat 81, and the end of the connecting rod 74 away from the hinge shaft 73 is movably connected to the U-shaped seat 81. The end of the U-shaped seat 81 away from the connecting rod 74 is movably connected to a threaded screw 82, and the other end of the threaded screw 82 is sleeved with a threaded sleeve 83.

[0031] Furthermore, the end of the threaded sleeve 83 is integrally provided with a fixing seat 84 , and a hole 85 corresponding to the threaded screw 82 is opened in the fixing seat 84 . The threaded screw 82 is threadedly matched with the threaded sleeve 83 , and the end of the threaded screw 82 is inserted into the hole 85 .

[0032] Furthermore, the fixing seat 84 is provided in the U-shaped frame 2, and the fixing seat 84 is fixedly connected to the U-shaped frame 2;

[0033] More specifically, the sides of the crossbeam 1 and the U-shaped frame 2 are respectively provided with an extension hole 11 and a through hole 21 corresponding to the hole 85 .

[0034] More specifically, the bottom of the base is also fixedly connected with a universal wheel 9, and a plurality of universal wheels 9 are provided. The universal wheels 9 are respectively fixedly connected to the two ends of the beam 1, the end of the bottom beam 71 and the bottom of the U-shaped seat 81.

[0035] By adopting the above technical solution, the worker rotates the threaded screw 82, and through the threaded cooperation between the threaded screw 82 and the threaded sleeve 83, the threaded screw 82 pushes the U-shaped seat 81 to move, and the U-shaped seat 81 pushes the end of the bottom beam 71 to swing through the connecting rod 74, and adjusts the distance between the two bottom beams 71, so that the hook 6 is located above the hoisting object, and further makes the hook 6 closer to the hoisting object to prevent the hoisting object from shaking during the lifting process.

[0036] In this embodiment, the end of the lifting arm 4 away from the column 3 is fixedly connected to the hook 6, and the bottom of the column 3 is fixedly connected to the U-shaped frame 2. The end of the lifting arm 4 moves up and down by the contraction of the hydraulic cylinder 5.

[0037] In this embodiment, the bottom beam 71 is tilted at one end away from the U-shaped frame 2 , the cross beam 1 is located on the side of the U-shaped frame 2 away from the bottom beam 71 , and the cross beam 1 and the U-shaped frame 2 are welded.

[0038] In this embodiment, a rotating handle 821 is integrally provided at one end of the threaded screw 82 close to the U-shaped seat 81 , so that a worker can rotate the threaded screw 82 by rotating the handle 821 .

[0039] The working principle of the utility model is: when using, first of all through the universal wheel 9, the hoisting equipment is moved to the side of the hoisted object, according to the width of the hoisted object, the threaded screw rod 82 is rotated by using the rotary handle 821, through the mutual cooperation between the threaded screw rod 82 and the threaded sleeve 83, the threaded screw rod 82 pushes the U-shaped seat 81 to move to the outside, the U-shaped seat 81 makes the end of the bottom beam 71 open to the outside through the connecting rod 74, so as to adjust the interval between the symmetrical end of the bottom beam 71, then the hoisting equipment is continuously moved, the bottom beam 71 is located at the side of the hoisted object, then the hook 6 is infinitely close to the upper side of the hoisted object, then the hydraulic cylinder 5 pushes the lifting arm 4 to move upwards, the hoisted object is lifted, and when lifting, the hoisted object is lifted vertically as far as possible, preventing the hoisted object from shaking, the structure is simple, the operation is very convenient, and the manual labor intensity is effectively reduced.

[0040] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0041] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A small portable lifting device, comprising a base and a column (3), wherein the top of the column (3) is movably connected to a lifting arm (4), a hydraulic cylinder (5) is further transmission-connected between the lifting arm (4) and the column (3), and both ends of the hydraulic cylinder (5) are movably connected to the side of the column (3) and the side of the lifting arm (4); Its characteristics are: The base comprises a U-shaped frame (2) welded to the bottom of the column (3), the side of the U-shaped frame (2) is fixedly connected to the crossbeam (1), the side of the U-shaped frame (2) away from the crossbeam (1) is symmetrically movably connected to the adjustment bracket (7), and the symmetrical adjustment brackets (7) are movably connected to the threaded brackets (8).

2. The small portable lifting device according to claim 1, characterized in that: The adjusting bracket (7) includes a bottom beam (71), the end of which is inserted into the U-shaped frame (2), and the end of the bottom beam (71) is movably connected to the U-shaped frame (2) via a pin, and an end of the bottom beam (71) close to the U-shaped frame (2) is also provided with an axis hole (72) that cooperates with the pin.

3. The small portable lifting device according to claim 2, characterized in that: A connecting rod (74) is provided on the side of the bottom beam (71), and a hinge shaft (73) is provided between the bottom beam (71) and the connecting rod (74), with both ends of the hinge shaft (73) being fixedly connected to the bottom beam (71) and the connecting rod (74), respectively.

4. The small portable lifting device according to claim 1, characterized in that: The threaded bracket (8) includes a U-shaped seat (81), one end of the connecting rod (74) away from the hinge shaft (73) is movably connected to the U-shaped seat (81), one end of the U-shaped seat (81) away from the connecting rod (74) is movably connected to a threaded screw (82), and the other end of the threaded screw (82) is sleeved with a threaded sleeve (83).

5. The small portable lifting device according to claim 4, characterized in that: The end of the threaded sleeve (83) is integrally provided with a fixing seat (84), and a hole (85) corresponding to the threaded screw (82) is opened in the fixing seat (84). The threaded screw (82) is threadedly matched with the threaded sleeve (83), and the end of the threaded screw (82) is inserted into the hole (85).

6. The small portable lifting device according to claim 5, characterized in that: The fixing seat (84) is arranged in the U-shaped frame (2), and the fixing seat (84) is fixedly connected to the U-shaped frame (2); The side surfaces of the crossbeam (1) and the U-shaped frame (2) are respectively provided with an extension hole (11) and a through hole (21) corresponding to the hole (85).

7. The small portable lifting device according to claim 2, characterized in that: The bottom of the base is also fixedly connected to a universal wheel (9), and a plurality of universal wheels (9) are provided. The universal wheels (9) are respectively fixedly connected to the two ends of the cross beam (1), the end of the bottom beam (71), and the bottom of the U-shaped seat (81).

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