CN214087492U

CN214087492U - Portable lifting device

Info

Publication number: CN214087492U
Application number: CN202022714526.XU
Authority: CN
Inventors: 郭晓亮; 邓向斌; 丁文兵; 陈璐
Original assignee: Hangzhou Lebben Technology Co ltd
Current assignee: Hangzhou Lebben Technology Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-08-31
Anticipated expiration: 2030-11-20

Abstract

The application discloses portable lifting devices, including at least three carrier lifting devices and with each carrier lifting devices demountable installation's tie-beam, each carrier lifting devices connects two at least there is the contained angle between the extending direction of tie-beam and two tie-beams, each tie-beam constitutes frame construction, frame construction directly or indirectly offsets with the holding surface. This application has compromise the carrier lifting devices in the portability of warehousing and transportation in-process and the stability of use through the dismantled setting of tie-beam, has higher spreading value.

Description

Portable lifting device

Technical Field

The application relates to the field of mechanical equipment, in particular to a portable lifting device.

Background

The lifting machine can realize the lifting of heavy objects. In daily life and production, lifting devices are devices used to lift vehicles during their maintenance.

The existing lifting device realizes the lifting of a top column or the lifting of a shear type through a hydraulic mode. For example, chinese patent publication No. CN210340221U discloses an automobile lifting mechanism, which includes a control part and two lifting parts, the control part is connected to one of the lifting parts, each lifting part includes an upright, a support platform, a lead screw, and a motor in driving connection with the lead screw, an output shaft of the motor is connected to a top end of the lead screw through a transmission device, a bottom end of the lead screw is connected to a bottom end of the upright, the support platform is slidably connected to the lead screw through a first lead screw nut, a top end and a bottom end of the upright are respectively connected to a first travel switch and a second travel switch, and both the first travel switch and the second travel switch are electrically connected to the motor; the top of each upright post is connected with a detection device for detecting the rotating speed of the screw rod, the two rotating speed detection devices are electrically connected with the control part, and the two motors are electrically connected with the control part.

The inventor finds that the lifting device in the prior art is complex and heavy in structure, and has room for improvement.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application discloses portable lifting device, including at least three carrier lifting device and with each carrier lifting device demountable installation's tie-beam, each carrier lifting device connects two at least there is the contained angle between the extending direction of tie-beam and two tie-beams, and each tie-beam constitutes frame construction, frame construction directly or indirectly offsets with the holding surface.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the tie-beam structure or components of a whole that can function independently structure as an organic whole, the tie-beam includes when the components of a whole that can function independently structure:

the two connecting auxiliary beams can be mutually butted or separated in the length direction;

the two ends of the inserting beam are respectively inserted into the two connecting auxiliary beams, and the inserting beam is provided with a limiting disc for limiting the position of the inserting beam or a flat outer surface in the length direction.

Optionally, the radial dimension of the side where the two connecting secondary beams are butted with each other is expanded to form a butting surface, and the outer dimension of the insertion beam corresponds to the inner dimension of the connecting secondary beam.

Optionally, the connection auxiliary beam is close to the butt joint surface, a support foot pad is arranged at the butt joint surface, and the support foot pad is arranged on the bottom surface of the connection auxiliary beam and is used for being abutted to the support surface.

Optionally, the number of the carrier lifting devices is four, the connecting beam comprises two connecting cross beams which are arranged oppositely and two connecting longitudinal beams which are arranged oppositely, the connecting cross beams are of an integral structure or a split structure, and the connecting longitudinal beams are of an integral structure or a split structure.

Optionally, each connecting beam is connected to an outer side of a corresponding vehicle lifting device, and each vehicle lifting device is located on an inner side of the frame structure.

Optionally, the connecting longitudinal beam and the connecting transverse beam are coplanar or non-coplanar.

Optionally, each carrier lifting device including lift the post and with the supporting mechanism that the holding surface offseted, be equipped with the coupling assembling that is used for installing the tie-beam that corresponds on the supporting mechanism, coupling assembling's bottom is equipped with the support callus on the sole, the support callus on the sole set up in just be used for offsetting with the holding surface on the bottom surface of tie-beam.

Optionally, the supporting mechanism is provided with at least two sets of connecting assemblies, and the extending directions of the two sets of connecting assemblies are not coplanar.

Optionally, the tie-beam is square pipe, corresponding tie-beam is tightened to coupling assembling parcel.

This application has compromise the carrier lifting devices in the portability of warehousing and transportation in-process and the stability of use through the dismantled setting of tie-beam, has higher spreading value.

Specific advantageous technical effects will be further explained in conjunction with specific structures or steps in the detailed description.

Drawings

FIG. 1a is a schematic diagram of a portable lift device in one embodiment;

FIG. 1b is a schematic side view of an embodiment of a portable lift device;

FIG. 1c is an enlarged view of FIG. 1b at the bearing surface;

FIG. 2a is a partially omitted illustration of an embodiment of a portable lifting device;

FIG. 2b is a schematic view of the split coupling beam assembly of FIG. 2 a;

FIG. 2c is an assembled view of a split coupling beam of the alternate construction of FIG. 2 a;

FIG. 2d is a diagram illustrating the internal mechanism of the portable lifting device according to an embodiment.

The reference numerals in the figures are illustrated as follows:

11. lifting the column; 112. a support mechanism;

20. a connecting beam; 21. connecting the secondary beam; 211. a butt joint surface; 22. a plug beam; 23. supporting the foot pad;

30. a connecting assembly;

40. a support surface.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1a to 2d, the present application discloses a portable lifting device, which includes at least three vehicle lifting devices and connecting beams 20 detachably mounted to each vehicle lifting device, each vehicle lifting device is connected to at least two connecting beams 20, an included angle exists between the extending directions of the two connecting beams 20, each connecting beam 20 forms a frame structure, and the frame structure directly or indirectly abuts against a supporting surface 40.

At least three carrier lifting devices with included angles between connecting lines form a plane lifting system, which can realize a supporting plane far away from the supporting surface 40, thereby realizing carrier lifting. The positional relationship between the vehicle lifting devices is determined by the frame structure constituted by the connecting beams 20. Thus, in this embodiment, the frame structure and the vehicle lifting device form a detachable lifting system. The frame structure, in addition to being subjected to forces from between the vehicle lifting devices, can also be used to bear loads by abutting against the support surface 40, improving the stability of the lifting system.

In the arrangement of the coupling beam 20, referring to an embodiment, the coupling beam 20 is an integral structure or a separate structure, and when the coupling beam 20 is the separate structure, the coupling beam includes:

two connecting sub-beams 21 which can be butted against each other or separated from each other in the length direction;

the two ends of the inserting beam 22 are respectively inserted into the two connecting auxiliary beams 21, and the inserting beam 22 is provided with a limiting disc for limiting the position of the inserting beam or a flat outer surface in the length direction.

The connecting beam 20 has better mechanical property and is convenient to produce. However, due to the limitation of size, the longer size will have certain influence on storage and transportation, and is suitable for the application scenario with smaller size. In a common application scenario of vehicle size, the connection beam 20 may be a split structure to improve storage and transportation performance. In the present embodiment, in order to reduce the influence of the separate structure on the strength of the coupling beam 20, the coupling effect of the coupling sub-beam 21 is improved by the insertion beam 22. In detail, the limiting disc on the plug beam 22 can improve the connection effect (refer to fig. 2c), but can have a certain influence on the adaptability; the plug-in beam 22 with a flat outer surface has a high degree of flexibility (see fig. 2b), but the ultimate mechanical properties in certain cases can be influenced to a certain extent. Of course, the connection sub-beam 21 may also be optimized for flexibility of the plug beam 22, for example by providing a limiting mechanism (not shown) inside or on the periphery to limit the limit position of the plug beam 22.

In addition to the insertion beam 22, the coupling sub-beam 21 itself is also provided with a structure that improves the coupling effect. Referring to an embodiment, the radial dimension of the side where the two coupling sub-beams 21 are butted against each other is expanded to form a butting face 211, and the outer dimension of the plug beam 22 corresponds to the inner dimension of the coupling sub-beam 21.

The abutting surface 211 can enlarge the contact area, thereby improving the mechanical performance. However, the abutting surface 211 also has a negative influence on the insertion beam 22 wrapping the connection sub-beam 21, and therefore, in the present embodiment, this problem is overcome by inserting the insertion beam 22 into the connection sub-beam 21, and the above-mentioned stopper mechanism and the like may be provided on the inner side wall of the connection sub-beam 21.

In order to improve the storage and transport performance of the coupling sub-beam 21, so that the dimensions of the two are identical or close to each other, it is readily apparent from the drawing that the abutment surface 211 is provided in the middle region of the coupling beam 20. But this position has a certain influence on the mechanical properties of the coupling beam 20. In one embodiment, the connecting sub-beam 21 is provided with a supporting foot 23 near the abutting surface 211, and the supporting foot 23 is disposed on the bottom surface of the connecting sub-beam 21 and is used for abutting against the supporting surface 40.

The supporting foot pads 23 improve the load carrying capacity of the frame structure and at the same time reduce the influence of the joints connecting the secondary beams 21 on the overall mechanical performance of the connecting beam 20. The support foot 23 is provided with various deformations, for example, it may be flexible or rigid; the surface can be flat or rough; a larger contact area with the supporting surface 40 is possible, an equivalent projected area is increased while a contact area is reduced by a ring structure as shown in the drawing, and the like.

In relation to the coupling beams 20, in reference to an embodiment, each coupling beam 20 is coupled to an outer side of a corresponding vehicle lifting device, which is located inside the frame structure.

The connecting beam 20 located outside the vehicle lifting device can protect the vehicle lifting device from being damaged during use. Meanwhile, the connecting beam 20 can enlarge the projection area of the frame structure in the gravity direction as much as possible under the condition that the size of the whole product is not changed, so that the stability of the device is improved.

The arrangement of the connecting beams 20 on the gravity projection plane refers to an embodiment in which the connecting beams 20 comprise connecting cross beams and connecting longitudinal beams. The included angle between the connecting cross beam and the connecting longitudinal beam can be a right angle as shown in the attached drawings, and can also be other angles. The expressions lateral and longitudinal are not limited to the positive direction but are equivalent to the first and second coupling beams 20 and 20 in terms of relative concept.

The arrangement of the connecting beams 20 in the direction of gravity is referred to in one embodiment as the connecting stringers being coplanar or non-coplanar with the connecting cross-beams. Coplane tie-beam 20 sets up more regularly, makes things convenient for the removal of carrier, and noncoplanar tie-beam 20 has better mechanical properties performance, and makes things convenient for the dismouting.

The support mechanism 112 is an important support member in addition to the forces applied to the frame structure of the overall portable lifting device. In an embodiment, each vehicle lifting device includes a lifting column 11 and a supporting mechanism 112 abutting against the supporting surface 40, the supporting mechanism 112 is provided with a connecting assembly 30 for mounting the corresponding connecting beam 20, a supporting foot pad 23 is provided at the bottom of the connecting assembly 30, and the supporting foot pad 23 is disposed on the bottom surface of the connecting beam 20 and is used for abutting against the supporting surface 40.

The connecting assembly 30 is detachably connected with the connecting beam 20 while being connected with the supporting mechanism 112, and when the connecting assembly 30 abuts against the supporting surface 40 by supporting the sole of the foot, the connecting assembly is equivalent to the connecting beam 20 and the supporting mechanism 112 being connected with the supporting surface 40, so that the whole structure is stable and simple.

In terms of the number of the connecting assemblies 30, referring to an embodiment, at least two sets of the connecting assemblies 30 are provided on the supporting mechanism 112, and the extending directions of the two sets of the connecting assemblies 30 are not coplanar.

The extending direction of the connecting member 30 may be the same as or different from the extending direction of the connecting beam 20, and in an actual product, the connecting beam 20 is not necessarily a linearly arranged member.

In the specific shape of the coupling beam 20, referring to an embodiment, the coupling member 30 is a square pipe, and wraps and tightens the coupling beam 20.

The tie-beam 20 is square pipe can bear self ascending stress in circumference, cooperates tightening of coupling assembling 30, can further improve the holistic stability of device.

Referring to fig. 1a, the carrier lifting device has four connecting beams 20, which include two connecting cross beams and two connecting longitudinal beams.

In principle, the connecting beam can be of an integral structure or a split structure. The connecting longitudinal beam in the same way can be of an integral structure or a split structure. The specific settings can be adjusted as desired.

The use of the portable lifting device of the present application is now exemplary explained with reference to fig. 1 a.

When the portable lifting devices need to be erected on the supporting surface 40, firstly placing a required number of carrier lifting devices, and opening all the connecting components 30;

and taking the integrated connecting beam 20 or the assembled split connecting beam 20, placing the connecting beam 20 in the corresponding connecting component 30, and locking the corresponding connected component.

The portable lifting device can be unfolded for operation.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims

1. The portable lifting device is characterized by comprising at least three carrier lifting devices and connecting beams detachably mounted with the carrier lifting devices, wherein each carrier lifting device is at least connected with two connecting beams, an included angle is formed between the extending directions of the two connecting beams, each connecting beam forms a frame structure, and the frame structure is directly or indirectly abutted against a supporting surface.

2. The portable lifting device of claim 1, wherein the connection beam is of a unitary or split structure, and when of the split structure, the connection beam comprises:

3. The portable lifting device of claim 2, wherein the side of the two coupling sub-beams abutting each other is expanded in radial dimension to form an abutment surface, and the external dimension of the insertion beam corresponds to the internal dimension of the coupling sub-beams.

4. The portable lifting device of claim 3, wherein the secondary connecting beam is provided with a support foot pad adjacent to the abutting surface, the support foot pad being provided on a bottom surface of the secondary connecting beam and adapted to abut against a support surface.

5. The portable lifting device of claim 1, wherein four carrier lifting devices are provided, the connecting beams comprise two connecting beams and two connecting longitudinal beams, the two connecting beams are oppositely arranged, the connecting beams are of an integral structure or a split structure, and the connecting longitudinal beams are of an integral structure or a split structure.

6. The portable lifting device of claim 5, wherein each connection beam is connected to an outer side of a corresponding vehicle lifting device, each vehicle lifting device being located inside the frame structure.

7. The portable lifting device of claim 5, wherein the connecting stringers are coplanar or non-coplanar with the connecting cross-beams.

8. The portable lifting device of claim 1, wherein each carrier lifting device comprises a lifting column and a supporting mechanism abutting against the supporting surface, the supporting mechanism is provided with a connecting assembly for mounting a corresponding connecting beam, the bottom of the connecting assembly is provided with a supporting foot pad, and the supporting foot pad is arranged on the bottom surface of the connecting beam and is used for abutting against the supporting surface.

9. The portable lifting device of claim 8, wherein at least two sets of connecting members are provided on the support mechanism, and the directions of extension of the two sets of connecting members are not coplanar.

10. The portable lifting device of claim 8, wherein the connecting beams are square tubes, and the connecting members wrap around and tighten around the corresponding connecting beams.