CN219409015U - Folding type transferring and lifting device - Google Patents

Abstract

The utility model discloses a folding type transferring and lifting device which comprises a movable base assembly, a vertical support arm (2), an inclined support arm (3), a telescopic rod assembly, a cantilever arm (5) and a bearing assembly, wherein the movable base assembly is arranged on the vertical support arm; the lower end of the vertical support arm is rotatably connected to the movable base assembly, the vertical support arm is vertically arranged in the middle of one end of the movable base assembly, and the upper end of the vertical support arm is rotatably connected with one end of the cantilever arm, so that the cantilever arm is movably arranged above the movable base assembly; the lower end of the inclined support arm is rotatably connected to the movable base assembly, and the inclined support arm is obliquely arranged between the movable base assembly and the cantilever arm; one end of the telescopic rod assembly is inserted into the inclined support arm in a telescopic way, and the other end of the telescopic rod assembly is rotatably connected to the middle part of the cantilever arm; the bearing component is arranged at the other end of the cantilever arm. The utility model can solve the problems of inconvenient material short-distance transportation and jacking in the prior art.

Description

Folding type transferring and lifting device

Technical Field

The utility model relates to building construction auxiliary equipment, in particular to a folding type transferring and lifting device.

Background

In the field of installation and decoration of constructional engineering, a large amount of materials are required to be transported and conveyed frequently, and when materials are transported in short distance in construction sites such as indoors, the materials are transported mostly through hand-pushing flat trolleys or manpower, so that the labor intensity of users is high. Meanwhile, the materials installed at the high position need to be lifted upwards, and the materials need to be operated by means of a chain block or a bracket. When the chain block is used, the material can be lifted only after the supporting point of the chain block is arranged at the high position and the chain block is installed, and according to the lifting positions of different materials, the installation positions of the chain block are required to be frequently disassembled and assembled, so that the operation is inconvenient; the time spent in setting up the support is longer, occupies a large amount of indoor space, can't be according to the different lifting positions flexible removal of material, and has certain potential safety hazard. Therefore, it is desirable to provide a folding type transferring and lifting device, which can solve the problem of inconvenient material short distance transportation and lifting in the prior art.

Disclosure of Invention

The utility model aims to provide a folding type transferring and lifting device which can solve the problem that materials are inconvenient to carry and lift in a short distance in the prior art.

The utility model is realized in the following way:

a folding transferring and lifting device comprises a movable base assembly, a vertical support arm, an inclined support arm, a telescopic rod assembly, a cantilever arm and a bearing assembly; the lower end of the vertical support arm is rotatably connected to the movable base assembly, the vertical support arm is vertically arranged in the middle of one end of the movable base assembly, and the upper end of the vertical support arm is rotatably connected with one end of the cantilever arm, so that the cantilever arm is movably arranged above the movable base assembly; the lower end of the inclined support arm is rotatably connected to the movable base assembly, and the inclined support arm is obliquely arranged between the movable base assembly and the cantilever arm; one end of the telescopic rod assembly is inserted into the inclined support arm in a telescopic way, and the other end of the telescopic rod assembly is rotatably connected to the middle part of the cantilever arm; the bearing component is arranged at the other end of the cantilever arm.

The movable base component comprises a base framework and universal wheels; the base framework is of a rectangular or U-shaped frame structure, and a plurality of universal wheels are respectively arranged at the bottom of the base framework at intervals; the lower end of the vertical support arm is rotatably connected to the middle part of one end of the base framework through the first rotating shaft support, and the lower end of the inclined support arm is rotatably connected to the middle part of one end of the base framework through the second rotating shaft support.

The base framework in be equipped with the stull, be connected with a plurality of diagonal braces between the middle part slope of base framework and vertical support arm, the both ends of diagonal brace are connected with base framework and vertical support arm detachable respectively.

The vertical support arm is of a transversely arranged double-rod structure, the cantilever arm is of a longitudinally arranged double-rod structure, one end of the cantilever arm is inserted into a double-rod gap of the vertical support arm, and the middle of the cantilever arm is rotatably connected with the telescopic rod assembly through a third rotating shaft support.

The telescopic rod assembly comprises a telescopic rack rod, a mounting box, a handle and a gear; the lower end of the telescopic rack rod is inserted into the inclined support arm, the mounting box is mounted at the upper end of the inclined support arm, the gear is rotatably mounted in the mounting box, and the end part of the gear is in meshed transmission connection with the telescopic rack rod through the latch; one end of the handle penetrates through the mounting box and is coaxially and fixedly connected with the gear, and the other end of the handle extends to the outside of the mounting box; the upper end of the telescopic rack rod is rotatably connected with the middle part of the cantilever arm through a third rotating shaft support.

The third rotating shaft support comprises a support plate and a first rotating shaft; the pair of support plates are respectively arranged at two sides of the cantilever through a pair of first rotating shafts, and the pair of first rotating shafts respectively penetrate through the double-rod structure of the cantilever, so that the cantilever can be rotatably arranged between the pair of support plates; the bottoms of the pair of support plates are respectively provided with a notch, two sides of the upper end of the telescopic rack rod are respectively provided with a plug rod, and the pair of plug rods are respectively inserted into the notches of the pair of support plates.

The notch is of a vertically arranged strip-shaped structure, and the lower part of the notch extends obliquely upwards and penetrates through the side end of the support plate.

The bearing assembly comprises a bearing plate, a plug seat and a fourth rotating shaft support; the other end of the cantilever arm is rotatably connected with one side of a fourth rotating shaft support, the other side of the fourth rotating shaft support is fixedly connected with a socket, a socket protrusion is formed at the bottom of the bearing plate and movably inserted into the socket, and the bearing plate is horizontally arranged at the other end of the cantilever arm.

The edge of the supporting plate is provided with a plurality of protection rods at intervals, and the protection rods are vertically connected with the supporting plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model has the advantages that the cantilever arm, the telescopic rod component and the bearing component are arranged, the cantilever arm can be lifted or lowered through the telescopic rod component, so that the height of the bearing component positioned at the end part of the cantilever arm is adjusted, the height of a material positioned on the bearing component is realized, the lifting function of the material is realized, the installation and the use of the material are convenient, the material is not required to be lifted manually, the material is lifted by adopting a chain block or a support frame, the flexible movement can be realized according to different lifting positions of the material, and the operation is more time-saving and labor-saving.

2. The movable base assembly is arranged, so that the material on the bearing assembly can be driven by the universal wheels to flexibly move on a construction site, the short-distance transfer requirement of the material is met, the manpower transportation is reduced, the physical consumption of constructors is reduced, the transfer efficiency of the material is improved, and the construction progress is improved; meanwhile, the frame type base has small dead weight, simple structure and low cost.

3. The vertical support arm, the inclined support arm, the telescopic rod assembly and the cantilever arm are all in rotatable structures, so that the height and the angle are adjusted by rotation while the safe placement and lifting of materials are ensured, the assembly, the unfolding and the folding are convenient, the use is convenient, and the occupied space during the storage is reduced.

Drawings

FIG. 1 is a perspective view of a folding transfer and lifting device of the present utility model;

FIG. 2 is a front view of the folding transfer and lift device of the present utility model;

FIG. 3 is a top view of the folding transfer and lift device of the present utility model;

fig. 4 is a schematic view of the telescopic rod assembly of the folding transfer and lifting device of the present utility model.

In the figure, a base framework 101, universal wheels 102, transverse braces 103, inclined braces 104, vertical support arms 2, first rotating shaft supports 201, inclined support arms 3, second rotating shaft supports 301, telescopic rack bars 401, a mounting box 402, handles 403, support plates 404, first rotating shafts 405, notches 406, insert bars 407, arm selection 5, second rotating shafts 501, support plates 601, insert seats 602, fourth rotating shaft supports 603 and protective bars 604.

Detailed Description

The utility model will be further described with reference to the drawings and the specific examples.

Referring to fig. 1 to 3, a folding transfer and lifting device includes a movable base assembly, a vertical support arm 2, an inclined support arm 3, a telescopic rod assembly, a cantilever arm 5 and a bearing assembly; the lower end of the vertical support arm 2 is rotatably connected to the movable base assembly, the vertical support arm 2 is vertically arranged in the middle of one end of the movable base assembly, and the upper end of the vertical support arm 2 is rotatably connected with one end of the cantilever arm 5 through a second rotating shaft 501, so that the cantilever arm 5 is movably arranged above the movable base assembly; the lower end of the inclined support arm 3 is rotatably connected to the movable base assembly, and the inclined support arm 3 is obliquely arranged between the movable base assembly and the cantilever arm 5; one end of the telescopic rod assembly is inserted in the inclined support arm 3 in a telescopic way, and the other end of the telescopic rod assembly is rotatably connected to the middle part of the cantilever arm 5; the support assembly is provided at the other end of the cantilever arm 5.

The vertical support arm 2 and the inclined support arm 3 can rotate relative to the movable base assembly, when the vertical support arm 2 and the inclined support arm 3 rotate to be attached to the movable base assembly, the vertical support arm 2 and the inclined support arm 3 are convenient to fold and store, the vertical support arm 2 rotates to be unfolded to a vertical state, and when the inclined support arm 3 rotates to be unfolded to an inclined state, the vertical support arm 2 and the inclined support arm 3 are convenient to support the cantilever arm 5. The bearing component is used for bearing materials such as section steel and rod pieces, under the telescopic control of the telescopic rod component, the cantilever arm 5 rotates around the second rotating shaft 501 relative to the vertical support arm 2 and the inclined support arm 3, and the height of the bearing component at the other end of the cantilever arm 5 can be adjusted, so that the materials such as section steel and rod pieces are lifted to the appointed height, and the installation and the use of the materials such as section steel and rod pieces are facilitated. The movable base assembly can flexibly move, and is convenient for transferring materials such as profile steel, rod pieces and the like.

Referring to fig. 1 to 3, the mobile base assembly includes a base frame 101 and a universal wheel 102; the base framework 101 is of a rectangular or U-shaped frame structure, and a plurality of universal wheels 102 are respectively arranged at the bottom of the base framework 101 at intervals; the lower end of the vertical support arm 2 is rotatably connected to the middle part of one end of the base framework 101 through the first rotating shaft support 201, and the lower end of the inclined support arm 3 is rotatably connected to the middle part of one end of the base framework 101 through the second rotating shaft support 301.

The base skeleton 101 can be made of square steel by welding, and the size of the base skeleton 101 and the specification of the square steel can be determined according to actual bearing and transportation requirements. The universal wheels 102 can be provided with pedal brake plates, so that the base framework 101 can flexibly move and turn, and the base framework 101 can be conveniently and stably parked, thereby meeting the requirements of material transportation, positioning and lifting. The vertical support arm 2 and the inclined support arm 3 can be staggered on two surfaces of the base framework 101, so that the vertical support arm 2 and the inclined support arm 3 are prevented from interfering with each other in the folding, storage and rotation processes.

Referring to fig. 1 and 3, a cross brace 103 is disposed in the base frame 101, a plurality of diagonal braces 104 are obliquely connected between the base frame 101 and the middle of the vertical support arm 2, and two ends of each diagonal brace 104 are detachably connected with the base frame 101 and the vertical support arm 2 respectively.

The cross braces 103 can improve the structural strength of the base skeleton 101, so that the base skeleton has higher bearing capacity; the diagonal brace 104 can support the vertical support arm 2 so as to enable the vertical support arm to be vertically and stably arranged. The cross brace 103 can be made of square steel and welded and fixed with the base framework 101; the diagonal brace 104 can be made of round steel pipe and is detachably connected with the base frame 101 by means of screw connection, buckling connection and the like. The number, specification and size of the cross braces 103 and the diagonal braces 104 can be adjusted according to actual requirements.

Referring to fig. 1 to 3, the vertical support arm 2 is of a dual-rod structure arranged transversely, the cantilever arm 5 is of a dual-rod structure arranged longitudinally, one end of the cantilever arm 5 is inserted into a dual-rod gap of the vertical support arm 2, and the middle part of the cantilever arm 5 is rotatably connected with the telescopic rod assembly through a third rotating shaft support.

The two rod pieces of the vertical support arm 2 and the cantilever arm 5 can be made of square steel, the length of the two rod pieces of the vertical support arm 2 and the cantilever arm 5 can be adjusted according to actual requirements, the length of the cantilever arm 5 is smaller than that of the base framework 101, so that when the rotation of the cantilever arm 5 and the supporting of the material by the supporting component are guaranteed, the material is located above the base framework 101, and the base framework 101 can be kept balanced.

Referring to fig. 1 to 4, the telescopic rod assembly includes a telescopic rack bar 401, a mounting box 402, a handle 403 and a gear (not shown); the lower end of the telescopic rack bar 401 is inserted into the inclined support arm 3, the mounting box 402 is arranged at the upper end of the inclined support arm 3, the gear is rotatably arranged in the mounting box 402 through a wheel shaft, and the end part of the gear is in meshed transmission connection with the telescopic rack bar 401 through a latch; one end of the handle 403 penetrates through the mounting box 402 and is coaxially and fixedly connected with the gear, and the other end of the handle 403 extends to the outside of the mounting box 402; the upper end of the telescopic rack bar 401 is rotatably connected with the middle part of the cantilever arm 5 through a third rotating shaft support.

The telescopic rack bar 401 can be made of square steel, and the section size of the telescopic rack bar 401 is smaller than that of the inclined support arm 3, so that the telescopic rack bar 401 and the inclined support arm are inserted. The telescopic rack bar 401 can be provided with a rack at one end facing the gear, the gear is meshed with the rack through a latch, and the handle 403 is utilized to drive the gear to rotate forwards or backwards, so that under the meshing transmission of the latch, the telescopic rack bar 401 extends out of the inclined support arm 3 or retracts into the inclined support arm 3, the total length of the inclined support arm 3 and the telescopic rack bar 401 is realized, the inclined support length of the cantilever arm 5 is further changed, and the cantilever arm 5 can rotate upwards or downwards relative to the vertical support arm 2 around the second rotating shaft 501.

Referring to fig. 1 to 4, the third shaft support includes a support plate 404 and a first shaft 405; the pair of support plates 404 are respectively arranged at two sides of the cantilever arm 5 through a pair of first rotating shafts 405, and the pair of first rotating shafts 405 respectively penetrate through the double-rod structure of the cantilever arm 5, so that the cantilever arm 5 can be rotatably arranged between the pair of support plates 404; the bottoms of the pair of support plates 404 are respectively formed with a notch 406, the upper ends of the telescopic rack bars 401 are respectively formed with a plug bar 407 on both sides, and the pair of plug bars 407 are respectively inserted into the notches 406 of the pair of support plates 404.

The support plate 404 can be rotatably connected with two rods of the cantilever arm 5 through the first rotating shaft 405, the support plate 404, the two rods of the cantilever arm 5 and the vertical support arm 2 form a parallelogram structure, the parallelogram structure is changed by utilizing the rotation of the second rotating shaft 501 and the first rotating shaft 405, the rotation of the two rods of the cantilever arm 5 relative to the vertical support arm 2 is realized, and the height of the bearing assembly at the other end of the cantilever arm 5 is driven to be changed.

Referring to fig. 4, the notch 406 is a vertically arranged elongated structure, and the lower portion of the notch 406 extends obliquely upward and penetrates through the side end of the support plate 404.

The inclined section of opening 406 is convenient for insert in opening 406, and cantilever arm 5 descends under the action of gravity and drives saddle 404 decline, makes insert arm 407 remove to vertical section upper end from the lower part of opening 406 to restriction cantilever arm 5 and flexible rack bar 401, guarantee flexible rack bar 401 and slant support arm 3 to the supporting stability of cantilever arm 5, prevent cantilever arm 5 from rocking about or breaking away from flexible rack bar 401, thereby guarantee that the material remains stable at the in-process of transporting and lifting.

Referring to fig. 1 to 3, the support assembly includes a support plate 601, a socket 602, and a fourth shaft support 603; the other end of the cantilever arm 5 is rotatably connected with one side of a fourth rotating shaft support 603, the other side of the fourth rotating shaft support 603 is fixedly connected with a socket 602, a socket protrusion (not shown in the figure) is formed at the bottom of the bearing plate 601, and the socket protrusion is movably inserted into the socket 602, so that the bearing plate 601 is horizontally arranged at the other end of the cantilever arm 5.

The size of the supporting plate 601 can be determined according to the size of the material to be transported and lifted, the supporting plate 601 can be made of steel plates, the inserting base 602 and the inserting protrusions at the bottom of the supporting plate 601 can be made of square steel, the inserting protrusions are smaller than the inserting base 602 by one specification, and the supporting plate 601 is ensured to be stably inserted on the inserting base 602, so that the supporting plate can stably place and lift the material. Through the setting of fourth pivot support 603, make two member of cantilever arm 5 can rotate relative grafting seat 602, keep grafting seat 602 in vertical state to guarantee the bearing stability of bearing board 601.

Referring to fig. 1 to 3, a plurality of guard bars 604 are disposed at the edge of the supporting plate 601 at intervals, and the guard bars 604 are vertically connected with the supporting plate 601.

The guard bars 604 can be made of round steel or reinforced steel, and one guard bar 604 is arranged at each of four corners of the rectangular supporting plate 601, so that the guard bars are used for limiting two sides of the material and preventing the material from falling from the supporting plate 601. The guard bars 604 are vertically welded and fixed with the support plate 601, and materials such as section steel, rod pieces and the like penetrate out from between two adjacent guard bars 604, so that the guard bars 604 can not influence the placement of the rod piece materials and simultaneously ensure that the materials cannot fall off from the support plate 601.

Referring to fig. 1 to 4, the application method of the present utility model is as follows:

the vertical support arm 2 rotates to a vertical state relative to the base framework 101 through a rotating shaft of the first rotating shaft support 201, the lower ends of the two diagonal braces 104 are respectively connected to the middle parts of two sides of the base framework 101 through bolts and the like, and the upper ends of the two diagonal braces 104 are respectively connected to the middle parts of the vertical support arm 2 through bolts and the like, so that the vertical setting stability of the vertical support arm 2 is improved.

The oblique support arm 3 rotates to an inclined state relative to the base framework 101 through the rotating shaft of the second rotating shaft support 301, the cantilever arm 5 rotates to an inclined state relative to the upper end of the vertical support arm 2 through the second rotating shaft 501, two inserting rods 407 at the upper end of the telescopic rack rod 401 are inserted into the notches 406 of the pair of support plates 404, the inserting rods 407 are inserted along the inclined sections of the notches 406 and move upwards to the upper ends of the notches 406 along the vertical sections, so that the cantilever arm 5 can be placed at the upper end of the telescopic rack rod 401, and the notch 406 and the inserting rods 407 are utilized to play a limiting role to prevent the cantilever arm 5 from falling off from the telescopic rack rod 401.

When the material is transported and lifted, the material is placed on the supporting plate 601, the material is prevented from falling off the supporting plate 601 by the guard bar 604, the vertical support arm 2 is pushed, the base framework 101 is moved through the universal wheels 102, and the material can be transported. For a rod piece with a longer length, two groups of bearing plates 601 can play a role in bearing two ends of the rod piece, and the two groups of bearing plates are mutually matched to move and synchronously control lifting so as to meet the requirements of transferring and lifting materials.

The constructor manually rotates the handle 403 and drives the gear in the mounting box 402 to synchronously rotate, and the axial extension of the telescopic rack 401 is realized by utilizing the meshing transmission of the gear and the latch on the telescopic rack 401, so that the telescopic rack 401 extends out of the oblique support arm 3 or retracts into the oblique support arm 3, and the insertion length of the oblique support arm 3 and the telescopic rack 401 is adjusted.

When the plugging length of the inclined support arm 3 and the telescopic rack bar 401 is changed, the triangular shape and the size formed by the inclined support arm 3, the telescopic rack bar 401, the cantilever arm 5 and the vertical support arm 2 are changed, the telescopic rack bar 401 and the cantilever arm 5 are rotated relatively by utilizing the third rotating shaft support seat through the first rotating shaft 405, the cantilever arm 5 is rotated upwards or downwards, and the height adjustment of the other end of the cantilever arm 5 and the supporting plate 601 is realized.

When the cantilever arm 5 rotates, the rotating shaft of the fourth rotating shaft support 603 rotates relative to the inserting seat 602, so that the inserting seat 602 is kept in a vertical state at the other end of the cantilever arm 5 double-rod structure, and the bearing plate 601 is guaranteed to stably and horizontally bear materials.

The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model should be included in the scope of the present utility model.

Claims (9)

1. A folding transfer and lifting device, characterized by: the device comprises a movable base assembly, a vertical support arm (2), an inclined support arm (3), a telescopic rod assembly, a cantilever arm (5) and a bearing assembly; the lower end of the vertical support arm (2) is rotatably connected to the movable base assembly, the vertical support arm (2) is vertically arranged in the middle of one end of the movable base assembly, and the upper end of the vertical support arm (2) is rotatably connected with one end of the cantilever arm (5), so that the cantilever arm (5) is movably arranged above the movable base assembly; the lower end of the inclined support arm (3) is rotatably connected to the movable base assembly, and the inclined support arm (3) is obliquely arranged between the movable base assembly and the cantilever arm (5); one end of the telescopic rod assembly is inserted in the inclined support arm (3) in a telescopic way, and the other end of the telescopic rod assembly is rotatably connected to the middle part of the cantilever arm (5); the bearing assembly is arranged at the other end of the cantilever arm (5).

2. The folding transport and lifting device of claim 1, wherein: the movable base assembly comprises a base framework (101) and universal wheels (102); the base framework (101) is of a rectangular or U-shaped frame structure, and the universal wheels (102) are respectively arranged at the bottom of the base framework (101) at intervals; the lower end of the vertical support arm (2) is rotatably connected to the middle part of one end of the base framework (101) through the first rotating shaft support (201), and the lower end of the inclined support arm (3) is rotatably connected to the middle part of one end of the base framework (101) through the second rotating shaft support (301).

3. The folding transport and lifting device of claim 2, wherein: the base framework (101) in be equipped with stull (103), slope is connected with a plurality of diagonal brace (104) between the middle part of base framework (101) and vertical support arm (2), the both ends of diagonal brace (104) are connected with base framework (101) and vertical support arm (2) detachable respectively.

4. The folding transport and lifting device of claim 1, wherein: the vertical support arm (2) is of a transversely arranged double-rod structure, the cantilever arm (5) is of a longitudinally arranged double-rod structure, one end of the cantilever arm (5) is inserted into a double-rod gap of the vertical support arm (2), and the middle part of the cantilever arm (5) is rotatably connected with the telescopic rod assembly through a third rotating shaft support.

5. The folding transport and lifting device of claim 4, wherein: the telescopic rod assembly comprises a telescopic rack rod (401), a mounting box (402), a handle (403) and a gear; the lower end of the telescopic rack bar (401) is inserted into the inclined support arm (3), the mounting box (402) is arranged at the upper end of the inclined support arm (3), the gear is rotatably arranged in the mounting box (402), and the end part of the gear is in meshed transmission connection with the telescopic rack bar (401) through the latch; one end of the handle (403) penetrates through the mounting box (402) and is coaxially and fixedly connected with the gear, and the other end of the handle (403) extends to the outside of the mounting box (402); the upper end of the telescopic rack bar (401) is rotatably connected with the middle part of the cantilever arm (5) through a third rotating shaft support.

6. The folding transport and lifting device of claim 5, wherein: the third rotating shaft support comprises a support plate (404) and a first rotating shaft (405); the pair of support plates (404) are respectively arranged at two sides of the cantilever arm (5) through a pair of first rotating shafts (405), and the pair of first rotating shafts (405) respectively penetrate through the double-rod structure of the cantilever arm (5) so that the cantilever arm (5) can be rotatably arranged between the pair of support plates (404); the bottoms of the pair of support plates (404) are respectively provided with a notch (406), the two sides of the upper end of the telescopic rack bar (401) are respectively provided with a plug bar (407), and the pair of plug bars (407) are respectively inserted into the notches (406) of the pair of support plates (404).

7. The folding transport and lifting device of claim 6, wherein: the notch (406) is of a vertically arranged strip-shaped structure, and the lower part of the notch (406) extends obliquely upwards and penetrates through the side end of the support plate (404).

8. The folding transport and lifting device of claim 1, wherein: the bearing assembly comprises a bearing plate (601), a socket (602) and a fourth rotating shaft support (603); the other end of the cantilever arm (5) is rotatably connected with one side of a fourth rotating shaft support (603), the other side of the fourth rotating shaft support (603) is fixedly connected with a socket (602), a socket bulge is formed at the bottom of the bearing plate (601), and the socket bulge is movably inserted into the socket (602), so that the bearing plate (601) is horizontally arranged at the other end of the cantilever arm (5).

9. The folding transport and lifting device of claim 8, wherein: a plurality of guard bars (604) are arranged at the edge of the bearing plate (601) at intervals, and the guard bars (604) are vertically connected with the bearing plate (601).