CN219548343U

CN219548343U - Foldable lifting device

Info

Publication number: CN219548343U
Application number: CN202320128005.7U
Authority: CN
Inventors: 李�荣; 钱士亮; 姜寿祥; 徐刚; 范伟; 陈�胜; 肖庆寿; 仝浩泽
Original assignee: Redant Decoration Co ltd
Current assignee: Redant Decoration Co ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-08-18
Anticipated expiration: 2033-02-06

Abstract

The utility model relates to a foldable lifting device, which comprises: the foldable pedal comprises two foldable pedals, a main supporting rod hinged to the bottom of each pedal, an auxiliary supporting rod spliced to the bottom of each main supporting rod, a first main folding arm and a first auxiliary folding arm pivoted to the bottom of each pedal, a second main folding arm pivoted to the other end of each first main folding arm and a second auxiliary folding arm pivoted to the other end of each first auxiliary folding arm; the other end of the second main folding arm is pivoted on the main supporting rod, the other end of the second auxiliary folding arm is pivoted at the joint of the first main folding arm and the first auxiliary folding arm, and the first auxiliary folding arm is positioned between the main supporting rod and the first main folding arm. According to the foldable lifting device, the telescopic auxiliary stay bars are arranged at the bottoms of the main stay bars, so that the construction requirements under different working environments can be met; the whole structure is more stable, is not easy to shake, the folding design is convenient to take, the occupied area after folding is small, and the space is saved.

Description

Foldable lifting device

Technical Field

The utility model belongs to the technical field of engineering installation, and particularly relates to a foldable lifting device.

Background

At present, operators often adopt ladders or scaffolds and the like to assist constructors to finish corresponding operations due to higher heights under the working environments such as engineering installation, high-altitude operation, decoration, indoor painting, wallpaper pasting and the like.

However, the traditional ladders or scaffolds are fixed in shape and are all in normal use, so that the ladder or scaffold occupies a relatively large space, is inconvenient for operators to take and put, is not easy to transport, and often needs to spend expensive freight transportation for carrying out reciprocating transportation; and the structural height of the traditional ladder or scaffold and the like cannot be adjusted, and the traditional ladder or scaffold is limited to the construction environment to a great extent, so that the traditional scaffold can only be used in a specific environment, the use scene of the scaffold is limited, and the universality is poor.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a foldable lifting device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the foldable pedal comprises two foldable pedals, a main supporting rod hinged to the bottom of each pedal, an auxiliary supporting rod spliced to the bottom of each main supporting rod, a first main folding arm and a first auxiliary folding arm pivoted to the bottom of each pedal, a second main folding arm pivoted to the other end of each first main folding arm and a second auxiliary folding arm pivoted to the other end of each first auxiliary folding arm;

the other end of the second main folding arm is pivoted on the main supporting rod, the other end of the second auxiliary folding arm is pivoted at the joint of the first main folding arm and the first auxiliary folding arm, and the first auxiliary folding arm is positioned between the main supporting rod and the first main folding arm.

Optimally, the pedal structure further comprises a reinforcing plate pivoted on the side edge of the pedal, an inclined strut, a main limiting hole, an auxiliary limiting hole and a limiting rod, wherein one end of the inclined strut is pivoted on the main supporting rod, the other end of the inclined strut is pivoted with the first auxiliary folding arm, the main limiting hole is formed in the bottom of the main supporting rod, the auxiliary limiting hole is formed in the auxiliary supporting rod and matched with the main limiting hole, the limiting rod penetrates through the main limiting hole, and the other end of the reinforcing plate is pivoted with the main supporting rod.

Optimally, the pedal structure further comprises fixed beams, positioning grooves, positioning holes, cross beams and locking bolts, wherein the fixed beams are fixed at the bottom of the pedal at intervals, the positioning grooves horizontally penetrate through the fixed beams, the positioning holes are vertically formed in the fixed beams and are communicated with the positioning grooves, the cross beams penetrate through the positioning grooves, and the locking bolts are fixed in the positioning holes and used for locking the cross beams.

Optimally, the device also comprises fixing arms fixed between the main supporting rods, a first side folding arm connected with the fixing arms in a pivot way, two groups of second side folding arms connected with the other ends of the first side folding arms in a pivot way, and top supporting arms pivoted on the inner sides of the bottoms of the second side folding arms, wherein the inner sides of the two groups of top supporting arms are pivoted, and one end of each second side folding arm far away from the first side folding arm is pivoted with the main supporting rod.

Optimally, the pedal structure also comprises anti-slip holes formed at the top of the pedal at intervals, hinges fixed at the inner side of the pedal, avoiding grooves formed at the opposite sides of the hinges, a corner plate fixed at the outer side of the main stay bar and a pedal pivoted on the corner plate.

Optimally, the pedal further comprises a handle fixing rod fixed on the outer side wall of the pedal and a handle penetrating through the handle fixing rod.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the foldable lifting device, the telescopic auxiliary stay bars are arranged at the bottoms of the main stay bars, so that the construction requirements under different working environments can be met; by arranging the first main folding arm, the second main folding arm, the first auxiliary folding arm and the second auxiliary folding arm, after the main stay bar is opened, the strength of the whole structure is improved by utilizing the principle of triangle mechanics; the top of the main stay bar is propped open by arranging the first side folding arm, the second side folding arm and the top stay arm, so that the main stay bar is more stable; through setting up the crossbeam of pull in the footboard bottom, improve the bearing of footboard, overall structure is more firm, is difficult for rocking, and folding design is also convenient to take, and area is little after folding, practices thrift the space.

Drawings

FIG. 1 is a schematic view of the structure of the utility model after being opened;

FIG. 2 is a schematic view of the structure of FIG. 1 at another angle;

FIG. 3 is a schematic view of the folded structure of the present utility model;

FIG. 4 is a diagram showing the relationship between the second side folding arm and the top support arm according to the present utility model;

reference numerals illustrate:

1. a pedal; 2. an anti-slip hole; 3. a hinge; 4. an avoidance groove; 5. a handle fixing rod; 6. a handle; 7. a main stay bar; 8. an auxiliary stay bar; 9. a reinforcing plate; 10. a corner plate; 11. a foot pedal; 12. a main limiting hole; 13. an auxiliary limiting hole; 14. a limit rod; 15. a fixed beam; 16. a positioning groove; 17. positioning holes; 18. a cross beam; 19. a locking bolt; 20. a first main folding arm; 21. a second main folding arm; 22. a first secondary folding arm; 23. a second secondary folding arm; 24. diagonal bracing; 25. a cutting sleeve; 26. a fixed arm; 27. a first side folding arm; 28. a second side folding arm; 29. a top support arm; 30. a backing plate.

Detailed Description

The utility model will be further described with reference to examples of embodiments shown in the drawings.

As shown in fig. 1-3, the foldable lifting device of the present utility model is a schematic structural view, fig. 1-2 is a schematic structural view after the foldable lifting device is opened, and fig. 3 is a schematic structural view after the foldable lifting device is folded, wherein the foldable lifting device is made of stainless steel materials, has high strength, light weight, strong corrosion resistance, and is convenient to carry, and is generally applied in working environments such as high-altitude operation, decoration, indoor painting, wallpaper pasting, etc.

The two pedals 1 are arranged, the hinge 3 is fixed on the outer side of the butt joint position of the two pedals 1, the two pedals 1 can be flattened when in use under the action of the hinge 3, and the two pedals 1 can be folded when not in use. The arc-shaped avoiding groove 4 is formed in the opposite side of the hinge 3, and when the two pedals 1 are folded, various folding arms can be prevented from interfering with the hinge 3. The top matrix of the pedal 1 is provided with a plurality of groups of anti-skid holes 2, so that the anti-skid tread is increased, and constructors can also work on the pedal 1 more safely. The handle dead lever 5 is fixed in the same side of footboard 1, has seted up the handle fixed orifices in the handle dead lever 5, and handle 6 inserts in the handle fixed orifices, and after two pieces of footboard 1 inwards fold into the shape that fig. 3 shows, two sets of handles 6 just involution together this moment, make things convenient for constructor to draw (in order to make things convenient for constructor's extraction, the cover has the plastic protective sheath on handle 6).

One end of the reinforcing plate 9 is pivoted on the outer side of the pedal 1 through a pin shaft, and the other end of the reinforcing plate 9 is pivoted with the main stay bars 7 through a pin shaft (four groups of reinforcing plates 9 are arranged on the outer side of the pedal 1, so that four groups of main stay bars 7 correspondingly exist, and under the action of the reinforcing plates 9, the four groups of main stay bars 7 can be turned over and opened to bear two pedals 1). The inside cavity of main vaulting pole 7, auxiliary stay pole 8 peg graft in main stay pole 7, and during actual operation, if the height of main stay pole 7 is too low, can take auxiliary stay pole 8 out from the bottom of main stay pole 7 to improve holistic height, make things convenient for construction operation, when constructing on the step in addition, can pull out different length with the auxiliary stay pole 8 of both sides respectively, with the difference in height between the different steps of matching, ensure that footboard 1 is in the horizontality. The main limiting hole 12 is formed in the bottom of the main supporting rod 7, the auxiliary limiting hole 13 is formed in the auxiliary supporting rod 8 and is matched with the main limiting hole 12, and after the auxiliary supporting rod 8 is pulled out by a proper distance, the limiting rod 14 passes through the main limiting hole 12 and is inserted into the auxiliary limiting hole 13, so that the position of the auxiliary supporting rod 8 is fixed.

As shown in fig. 2, the fixing beam 15 has a plurality of fixing beams, which are fixed at intervals to the bottom of the pedal 1, and the positioning groove 16 horizontally penetrates the fixing beam 15. The locating hole 17 is vertically arranged on the fixed beam 15 and communicated with the locating groove 16, and the inner side of the locating hole 17 is provided with internal threads. The cross member 18 is inserted into the positioning groove 16 and is movable along the longitudinal direction of the pedal 1. The locking bolt 19 outside is equipped with the external screw thread and revolves and twist in locating hole 17 for fix a position crossbeam 18, opens footboard 1 when the construction, because only link to each other through hinge 3 between two footboard 1, intensity is lower, consequently need twist locking bolt 19, the junction of movable crossbeam 18 to two footboard 1, then screw up locking bolt 19 can, rely on crossbeam 18 to further support two footboard 1, improve overall structure's intensity and life, when footboard 1 needs folding, screw up locking bolt 19, with crossbeam 18 remove to the bottom of arbitrary footboard 1 can.

One end of the first main folding arm 20 is pivotally connected to the bottom of the pedal 1 through a pin, one end of the second main folding arm 21 is pivotally connected to the first main folding arm 20 through a pin, the other end of the second main folding arm 21 is pivotally connected to the main supporting rod 7, and when the main supporting rod 7 is opened, the first main folding arm 20 and the second main folding arm 21 are driven to be synchronously opened, and the first main folding arm 20 and the second main folding arm 21 are used for improving the structural strength between the pedal 1 and the main supporting rod 7 (as shown in fig. 1, four groups of the first main folding arm 20 and the second main folding arm 21 are respectively corresponding to the main supporting rod 7).

One end of the diagonal brace 24 is pivotally connected with the main brace rod 7 through a pin, and the other end of the diagonal brace 24 is pivotally connected with the side edge of the pedal 1. One end of the first auxiliary folding arm 22 is pivoted with the diagonal brace 24, and the other end of the first auxiliary folding arm 22 is pivoted with the second auxiliary folding arm 23. The other end of the second auxiliary folding arm 23 is pivoted with the connection part of the first main folding arm 20 and the second main folding arm 21, and when the main supporting rod 7 is unfolded, the first main folding arm 20 and the second main folding arm 21 are driven to be synchronously unfolded, the first auxiliary folding arm 22 and the second auxiliary folding arm 23 are pressed, the first main folding arm 20 and the second main folding arm 21 are unfolded, and the stability of the whole structure is ensured. The cutting ferrule 25 cup joints on first pair folding arm 22, confirm the position back of first pair folding arm 22 and second pair folding arm 23, remove cutting ferrule 25 to the junction of first pair folding arm 22 and second pair folding arm 23, fix a position first pair folding arm 22 and second pair folding arm 23, cutting ferrule 25 is hollow metal piece, the thickness of cutting ferrule 25 inboard equals the thickness sum of first pair folding arm 22 and second pair folding arm 23, consequently remove cutting ferrule 25 to the junction back of first pair folding arm 22 and second pair folding arm 23, cutting ferrule 25 can be blocked by the pin edge of first pair folding arm 22 and second pair folding arm 23 pin joint department to this fixes a position cutting ferrule 25.

As shown in fig. 2, the fixing arms 26 are fixed to the tops of the adjacent two sets of main struts 7. The first side folding arm 27 is pivotally connected to the fixed arm 26, the second side folding arm 28 is pivotally connected to the other end of the first side folding arm 27, and the second side folding arm 28 has two groups, which are respectively located at two sides of the first side folding arm 27. As shown in fig. 4, the second side folding arm 28 is pivotally connected to the main stay 7 at an end remote from the first side folding arm 27. The bottom inner sides of the second side folding arms 28 are respectively pivoted with top supporting arms 29, the inner sides of the two groups of top supporting arms 29 are pivoted together through pins, after the main supporting rod 7 is opened, the bottom of the main supporting rod 7 can cause instability of the whole structure due to the lack of a supporting structure, so that the two groups of top supporting arms 29 are pressed to prop up the main supporting rod 7, and the main supporting rod 7 is prevented from shaking. As shown in fig. 1, two pad plates 30 are fixed to the outer sides of the top arms 29, and when the top arms 29 are pressed, the two pad plates 30 limit the top arms 29. The angle plate 10 is fixed on the outer side of the main stay bar 7 in a welding mode, the pedal 11 is pivoted in the angle plate 10, and after the pedal 1 is opened, the pedal 11 can be turned out and pressed on the angle plate 10, so that the ascending operation problem of operators is solved.

The opening process of the foldable lifting device comprises the following steps: the device is horizontally placed on the ground, two groups of pedals 1 are unfolded, main supporting rods 7 on two sides are folded, a first auxiliary folding arm 22 and a second auxiliary folding arm 23 are pressed, the first main folding arm 20 and the second main folding arm 21 are unfolded, the stability of the whole structure is ensured, two groups of top supporting arms 29 are pressed, the main supporting rods 7 are unfolded, the main supporting rods 7 are prevented from shaking, locking bolts 19 are unscrewed, a cross beam 18 is moved to the joint of the two pedals 1, then the locking bolts 19 are screwed, the two pedals 1 are further supported by the cross beam 18, the strength and the service life of the whole structure are improved, the unfolded whole structure is overturned, and after the connecting parts of the first auxiliary folding arm 22 and the second auxiliary folding arm 23 are moved, the cutting sleeve 25 is overturned out of the pedals 11 on two sides of the main supporting rods 7;

the folding process of the foldable lifting device comprises the following steps: turning over the device, unscrewing the locking bolt 19, moving the cross beam 18 to the bottom of any pedal 1, inwards folding back the main stay bar 7, simultaneously, synchronously folding a plurality of groups of folding arms to the bottom of the pedal 1, then folding up the two pedals 1, just closing the two groups of handles 6 together, and facilitating the extraction of constructors.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. A collapsible lifting device, comprising:

the foldable pedal comprises two foldable pedals (1), a main stay bar (7) hinged at the bottom of the pedals (1), a subsidiary stay bar (8) spliced at the bottom of the main stay bar (7), a first main folding arm (20) and a first subsidiary folding arm (22) pivoted at the bottom of the pedals (1), a second main folding arm (21) pivoted at the other end of the first main folding arm (20), a second subsidiary folding arm (23) pivoted at the other end of the first subsidiary folding arm (22), fixed beams (15) fixed at intervals at the bottom of the pedals (1), positioning slots (16) horizontally penetrating through the fixed beams (15), positioning holes (17) vertically formed on the fixed beams (15) and communicated with the positioning slots (16), cross beams (18) penetrating through the positioning slots (16) and locking bolts (19) fixed in the positioning holes (17) and used for locking the cross beams (18);

the other end of the second main folding arm (21) is pivoted on the main supporting rod (7), the other end of the second auxiliary folding arm (23) is pivoted at the joint of the first main folding arm (20) and the first auxiliary folding arm (22), and the first auxiliary folding arm (22) is positioned between the main supporting rod (7) and the first main folding arm (20).

2. A collapsible lifting device as claimed in claim 1, wherein: the pedal structure is characterized by further comprising a reinforcing plate (9) pivoted on the side edge of the pedal (1), an inclined strut (24) pivoted with the main strut (7) at one end and the first auxiliary folding arm (22) at the other end, a main limiting hole (12) formed in the bottom of the main strut (7), an auxiliary limiting hole (13) formed in the auxiliary strut (8) and matched with the main limiting hole (12) and a limiting rod (14) penetrating through the main limiting hole (12), wherein the other end of the reinforcing plate (9) is pivoted with the main strut (7).

3. A collapsible lifting device as claimed in claim 1, wherein: the two-side folding arm support device is characterized by further comprising fixing arms (26) fixed between the main support rods (7), first side folding arms (27) connected to the fixing arms (26) in a pivot mode, two groups of second side folding arms (28) connected to the other ends of the first side folding arms (27) in a pivot mode, and top support arms (29) pivoted on the inner sides of the bottoms of the second side folding arms (28), wherein the inner sides of the two groups of top support arms (29) are pivoted, and one ends, far away from the first side folding arms (27), of the second side folding arms (28) are pivoted with the main support rods (7).

4. A collapsible lifting device as claimed in claim 1, wherein: the novel bicycle pedal further comprises anti-slip holes (2) formed in the top of the pedal (1) at intervals, hinges (3) fixed on the inner sides of the pedal (1), avoiding grooves (4) formed in the opposite sides of the hinges (3), angle plates (10) fixed on the outer sides of the main supporting rods (7) and foot pedals (11) pivoted on the angle plates (10).

5. A collapsible lifting device as claimed in claim 1, wherein: the pedal is characterized by further comprising a handle fixing rod (5) fixed on the outer side wall of the pedal (1), and a handle (6) penetrating through the handle fixing rod (5).