A lifting device for lifting building panels

By designing a spreader for building panels, including bottom support, vertical frame, side stop and hanging lugs, the problem of lack of special spreaders on the construction site is solved, and the safety and protection of the boards during the lifting process is achieved.

CN222729269UActive Publication Date: 2025-04-08CHINA 19TH METALLURGICAL CORP
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Patent Information

Application Number
CN202421549597.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-02
Publication Date
2025-04-08
Estimated Expiration
2034-07-02

AI Technical Summary

Technical Problem

There is a lack of spreaders dedicated to lifting valuable and easily deformed boards on construction sites. The prior art cannot effectively protect the boards, resulting in direct contact between the suspended rope and the boards and damage the boards.

Method used

A sling for lifting building panels is designed, including a bottom support, a vertical frame, a side stop and a hanging lug. A sandwich is formed between the vertical frames. The side stops are removably installed between the vertical frames. The hanging lugs are fixed to the vertical frames to prevent the hanging rope from directly contacting the board.

Benefits of technology

Through this sling, the plate will not come into direct contact with the sling rope during the lifting process to avoid damage; the vertical frame and side barrier protect the plate from the periphery to prevent deformation and wear; the weight of the plate is pressed on the bottom support to ensure safety and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a sling for lifting building panels, which belongs to the technical field of slings for construction sites, and solves the technical problem that there is a lack of slings dedicated to lifting panels at current construction sites. The sling for lifting building panels includes a bottom bracket; two vertical frames, both mounted on the bottom bracket, the two vertical frames are arranged in parallel, and a sandwich for vertically placing panels is formed between the two vertical frames; side blocks are detachably mounted between the two vertical frames, the side blocks are in contact with the side ends of the panels, and side blocks are installed on both sides of the panels to confine the panels in the sandwich from both sides; and lifting ears are fixed to the vertical frames. When the sling for lifting building panels is used to lift panels, the lifting rope will not directly contact the panels, and the panels are placed in the sandwich, which can prevent the panels from being damaged by the lifting rope. The two vertical frames and the vertical blocks protect the panels from the outside to ensure that the panels will not be deformed or worn during the lifting process. The weight of the panels is pressed on the bottom bracket, which can effectively prevent overturning and ensure safety.
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Description

Technical Field

[0001] The utility model belongs to the technical field of construction site hoists, in particular to a hoist for hoisting building panels. Background Art

[0002] Many building materials are needed at construction sites. Since there are so many building materials and they are heavy, it is obviously inappropriate to carry them all manually. Therefore, tower cranes are usually installed at construction sites to assist in carrying building materials. As a kind of building material, the conventional lifting method at construction sites is to lift the plate horizontally by waist, that is, to tie it by waist with a lifting rope. This is suitable for ordinary plates such as wood boards. For expensive or easily deformed plates such as metal plates or color steel tiles, the waist-to-waist lifting method cannot be used, because the lifting rope is in direct contact with the plate during waist-to-waist lifting, which is easy to damage the plate. Therefore, there is a lack of a lifting device specifically for lifting expensive and easily deformed plates at construction sites. Utility Model Content

[0003] The utility model provides a lifting device for lifting building plates, which is used to solve the technical problem that the current construction site lacks a lifting device specially used for lifting plates.

[0004] The utility model is realized by the following technical scheme: a lifting device for lifting building panels, comprising:

[0005] Bottom support;

[0006] Two vertical frames, both mounted on the bottom bracket, the two vertical frames are arranged in parallel, and a sandwich layer for vertically placing the plate is formed between the two vertical frames;

[0007] A side stopper is detachably mounted between the two vertical frames, the side stopper contacts the side ends of the plate, and the side stopper is mounted on both sides of the plate to restrict the plate in the interlayer from both sides;

[0008] The lifting ear is fixedly connected to the stand.

[0009] Furthermore, in order to better implement the utility model, the stand comprises:

[0010] Two vertical poles, the bottom ends of which are both connected to the bottom bracket;

[0011] A transverse plate is connected between the top ends of the two vertical poles, the lifting ears are fixedly mounted on the transverse plate, and the side guards are detachably mounted between the transverse plates of the two vertical frames.

[0012] Furthermore, in order to better implement the present invention, the vertical rod is a telescopic rod so as to adjust the distance between the horizontal plate and the bottom bracket.

[0013] Furthermore, in order to better implement the utility model, the upright pole includes:

[0014] A first rod, the bottom end of which is welded and fixed to the bottom bracket, and a waist-shaped hole is opened on the upper part of the first rod, and the length direction of the waist-shaped hole is the vertical direction;

[0015] A second rod, the top end of which is welded and fixed to the horizontal plate, and the lower part of the second rod is provided with a first through hole corresponding to the position of the waist-shaped hole;

[0016] A first bolt and a first nut, wherein the first bolt passes through the first through hole and the waist-shaped hole and is threadedly connected with the first nut.

[0017] Furthermore, in order to better implement the utility model, the stand also includes:

[0018] A screw rod, wherein a second through hole is formed in the transverse plate, and a third through hole corresponding to the second through hole is formed in the bottom bracket, and the screw rod is inserted into the second through hole and the third through hole;

[0019] A second nut, threadedly connected to the screw rod, wherein the second nut is located above the transverse plate;

[0020] The third nut is screwed to the screw rod, and the third nut is located below the base.

[0021] Furthermore, in order to better implement the present invention, a reinforcing rib plate is welded and fixed between the first rods on the corresponding sides of the two stands and / or between the second rods on the corresponding sides of the two stands.

[0022] Furthermore, in order to better implement the utility model, the stand also includes:

[0023] A round rod, with two ends respectively connected to the two vertical rods;

[0024] The sleeve is rotatably sleeved on the round rod, and the side of the transverse plate close to the interlayer is flush with the sleeve.

[0025] Furthermore, in order to better implement the present invention, the side guard includes:

[0026] A second bolt and a fourth nut, a fourth through hole is opened in the horizontal plate of one of the vertical frames, and a fifth through hole corresponding to the fourth through hole is opened in the horizontal plate of the other vertical frame, and the second bolt passes through the fourth through hole and the fifth through hole and is threadedly connected with the fourth nut.

[0027] Furthermore, in order to better implement the present invention, the fourth through hole and the fifth through hole are both long through holes, and the length direction of the long through holes is the horizontal direction.

[0028] Furthermore, in order to better implement the utility model, a pad for padding the plate is placed on the base.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] The utility model provides a lifting device for lifting building panels, which comprises a base support, a vertical frame, a side stopper and a lifting ear. There are two vertical frames, both of which are mounted on the base support and are arranged in parallel. A sandwich layer for vertically placing the building panels is formed between the two vertical frames. The side stopper is detachably mounted between the two vertical frames, where the side stopper is connected to the side ends of the panels, and the side stops are mounted on both sides of the panels to confine the panels in the sandwich layer from both sides. The lifting ears are fixedly connected to the vertical frames.

[0031] When in use, the plate is placed vertically in the above-mentioned interlayer so that the plate is overlapped on the bottom support, and the two vertical frames and the side guards on both sides of the plate surround the plate from all sides. Then the lifting ears are connected with the lifting rope of the tower crane to lift the plate connected to it and transport it to the designated location.

[0032] Through the above structure, when the lifting device for lifting building panels provided by the utility model lifts the panels, the lifting rope will not directly contact the panels, and the panels are placed in the interlayer, so the panels can be prevented from being damaged by the lifting rope, and the two vertical frames and the vertical stops can protect the panels from the outside to ensure that the panels will not be deformed or worn during the lifting process, and when lifting, the weight of the panels is pressed on the bottom support, which can effectively avoid overturning and ensure safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a structural schematic diagram of a lifting device for lifting building panels provided by an embodiment of the utility model;

[0035] Figure 2 yes Figure 1 Another perspective view of the lifting device for lifting building panels shown;

[0036] Figure 3 yes Figure 1 An exploded view of a lifting device for lifting building panels is shown;

[0037] Figure 4It is a reference diagram for the use of a lifting device for lifting building panels provided in an embodiment of the utility model.

[0038] In the figure:

[0039] 100-bottom support, 200-upright frame, 210-upright pole, 211-first pole, 212-second pole, 213-first bolt, 214-first nut, 220-cross plate, 230-screw, 240-second nut, 250-third nut, 260-reinforcement rib plate, 270-round rod, 280-sleeve, 300-plate, 400-interlayer, 500-side stop, 510-second bolt, 520-fourth nut, 600-lifting ear, 700-spacer. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0041] Example:

[0042] The utility model provides a lifting device for lifting building panels. Figure 1-Figure 4 As shown, it includes a bottom bracket 100, a stand 200, a side stop 500 and a hanging ear 600, wherein:

[0043] The base 100 is a straight plate or block. Preferably, the base 100 is made of channel steel, which has sufficient strength to support the components and the plate 300 thereon, and the base 100 is arranged horizontally. The stand 200 is arranged vertically, and there are two stands 200. The two stands 200 are installed on the base 100, and the two stands 200 are arranged in parallel. A sandwich 400 for vertically placing the building plate 300 is formed between the two stands 200. The side block 500 is detachably installed between the two stands 200. The side block 500 is connected to the side end of the plate 300, and the side blocks 500 are installed on both sides of the plate 300 to limit the plate 300 in the sandwich 400 from both sides. The lifting lug 600 is fixed to the stand 200. Optionally, the lifting lug 600 can be welded to the stand 200, or can be connected to the stand 200 by screwing.

[0044] When in use, the plate 300 is placed vertically in the interlayer 400 so that the plate 300 is overlapped on the base 100, and the two upright frames 200 and the side guards 500 on both sides of the plate 300 surround the plate 300 from all sides, and then the lifting lug 600 is connected by the lifting rope of the tower crane to lift the plate 300 connected therein and transport it to the designated position.

[0045] Through the above structure, when the lifting device for building board lifting provided by the utility model is lifting the board 300, the lifting rope will not directly contact the board 300, and the board 300 is placed in the interlayer 400, so the board 300 can be prevented from being damaged by the lifting rope, and the two upright frames 200 and the upright blocks can protect the board 300 from the outside, ensuring that the board 300 will not be deformed and worn during the lifting process, and during the lifting, the weight of the board 300 is pressed on the bottom support 100, which can effectively avoid overturning and ensure safety. In addition, after the board 300 is lifted to the specified position, the appropriate side block 500 can be removed, and then the board 300 in the interlayer 400 can be taken out or pulled out from the side of the lifting device. Therefore, after the lifting device provided by the utility model is used to lift the building board 300 to the specified position, the worker only needs to translate the board 300 to take the board 300 out of the lifting device. Therefore, the lifting device for building board lifting provided by the utility model also has the advantage of conveniently taking out the board 300.

[0046] Of course, during the lifting process, all side guards 500 need to be installed to restrict the plate 300 from both sides in the interlayer 400. In addition, three, four or five vertical frames 200 can also be installed on the base 100, and an interlayer 400 is formed between each two adjacent vertical frames 200, and different or the same plates 300 are placed in different interlayers 400.

[0047] An optional implementation of this embodiment is as follows: the stand 200 includes two stand poles 210 and a horizontal plate 220, wherein:

[0048] The bottom ends of the two vertical poles 210 are connected to the bottom bracket 100. Optionally, the bottom ends of the vertical poles 210 and the bottom bracket 100 can be welded or bolted. The cross plate 220 is connected between the top ends of the two vertical poles 210. In this way, the two vertical poles 210 and the cross plate 220 form a door-type structure, that is, the above-mentioned vertical frame 200 is a door-type frame. When the plate 300 is placed in the interlayer 400 between the two vertical frames 200, the plate 300 leans against the cross plate 220, that is, the cross plate 220 contacts the plate 300 from the periphery. Optionally, the above-mentioned cross plate 220 can be a straight plate or a channel steel. Of course, one or more plates 300 can be placed in the above-mentioned interlayer 400. When multiple plates 300 are placed, the plates 300 located at the edge lean against the cross plate 220.

[0049] The lifting lugs 600 are connected to the horizontal plates 220 by welding or screwing. For example, the lifting lugs 600 are installed on the horizontal plates 220 of the two vertical frames 200, or the lifting lugs 600 are installed on the horizontal plates 220 of only one vertical frame 200. The side guards 500 are detachably installed between the horizontal plates 220 of the two vertical frames 200. When the plate 300 is lifted, the two horizontal plates 220 and the side guards 500 on both sides of the plate 300 form a circle surrounding the plate 300.

[0050] The frame 200 of the above structure has the advantages of simple structure and low cost, and is suitable for construction sites. The sling for lifting building panels made of the frame 200 has the advantages of light weight and easy use. Moreover, through the frame 200, the condition of the lifted panel 300 can be easily observed.

[0051] Of course, the vertical frame 200 can also be other forms of vertical structures, such as vertical plates or grids vertically installed on the base 100. In addition, the horizontal plate 220 can also be replaced by straight rods. Furthermore, the number of the vertical rods 210 can also be one, three, or four. When the number of the vertical rods 210 is one, the vertical rod 210 is connected to the middle of the horizontal plate 220. At this time, the horizontal plate 220 and the vertical rod 210 form a "T"-shaped structure.

[0052] In order to facilitate the adjustment of the distance between the horizontal plate 220 and the bottom bracket 100, so as to be suitable for placing plates 300 of different sizes in the interlayer 400, the vertical rod 210 in this embodiment is set as a telescopic rod. Specifically, when a shorter plate 300 needs to be hoisted, the length of the vertical rod 210 is shortened to make the distance between the horizontal plate 220 and the bottom bracket 100 smaller; when a longer plate 300 needs to be hoisted, the length of the vertical rod 210 is extended to make the distance between the horizontal plate 220 and the bottom bracket 100 larger. Of course, as another implementation of this embodiment, the vertical rod 210 in this embodiment can also be a complete straight rod, which can be a bare rod or an angle steel.

[0053] Optionally, the vertical rod 210 in this embodiment includes a first rod 211, a second rod 212, a first bolt 213 and a first nut 214, wherein:

[0054] The first rod 211 is a straight rod, which can be a plain rod or an angle steel. The bottom end of the first rod 211 is welded and fixed on the base 100. Each vertical rod 210 includes two vertical rods 210, and each vertical frame 200 includes two vertical rods 210. Therefore, the number of first rods 211 welded on the base 100 is four. A waist-shaped hole is provided on the upper part of each first rod 211, and the length direction of the waist-shaped hole is the vertical direction.

[0055] The second rod 212 is a straight rod, which can be a plain rod or an angle steel. The top end of the second rod 212 is welded and fixed to the bottom wall of the horizontal plate 220. Each vertical rod 210 includes two vertical rods 210, and each vertical frame 200 includes two vertical rods 210. Therefore, the number of second rods 212 welded to the bottom wall of the horizontal plate 220 is four. A first through hole is provided at the upper portion of each second rod 212.

[0056] The first bolt 213 passes through the first through hole and the waist-shaped hole and is screwed with the first nut 214. Thus, when the first bolt 213 and the first nut 214 are tightened, the first rod 211 and the second rod 212 are locked, and the vertical rod 210 cannot be extended or retracted at this time. When the first nut 214 is loosened, the first rod 211 and the second rod 212 are unlocked, and the vertical rod 210 can be extended or retracted at this time, that is, the vertical frame 200 can be extended or retracted.

[0057] Of course, the telescopic vertical rod 210 may also include an outer tube and an inner shaft, the bottom end of the outer tube is welded and fixed on the bottom bracket 100, the top end of the inner shaft is welded and fixed on the bottom wall of the horizontal plate 220, the inner shaft is slidably inserted into the outer tube, and a screw hole is provided on the upper tube wall of the outer tube, and a stop screw is screwed into the screw hole. When the vertical rod 210 needs to be locked (that is, the vertical rod 210 cannot be retracted), the stop screw is turned so that the stop screw presses against the inner shaft, and when the vertical rod 210 needs to be retracted, the stop screw is loosened. In addition, a seat tube clamp may be installed on the top end of the outer tube, and the seat tube clamp is used to lock the inner shaft.

[0058] In order to make the extended stand 200 locked more firmly, the stand 200 in this embodiment further includes a screw rod 230, a second nut 240 and a third nut 250, wherein:

[0059] The screw rod 230 is a long screw rod 230, a second through hole is opened in the cross plate 220, a third through hole corresponding to the second through hole is opened in the base 100, the screw rod 230 is inserted into the second through hole and the third through hole, the second nut 240 is screwed to the screw rod 230, and the second nut 240 is located above the cross plate 220, the third nut 250 is screwed to the screw rod 230, and the third nut 250 is located below the base 100.

[0060] After the stand 200 is extended to the desired position, the second nut 240 and the third nut 250 are tightened, so that the second nut 240 is pressed against the top surface of the horizontal plate 220, and the third nut 250 is pressed against the bottom surface of the base 100. In this way, the second nut 240, the third nut 250 and the screw 230 clamp the stand 200 on the base 100. When the stand 200 needs to be extended or retracted, the second nut 240 and / or the third nut 250 are loosened.

[0061] In order to enhance the structural strength of the entire sling, in this embodiment, a reinforcing rib plate 260 is welded and fixed between the first rods 211 on the corresponding sides of the two uprights 200 and / or between the second rods 212 on the corresponding sides of the two uprights 200 . For better explanation, the four first rods 211 welded on the base 100 are defined as A rod, B rod, C rod and D rod, respectively, wherein A rod and B rod belong to one frame 200, C rod and D rod belong to another frame 200, and A rod and C rod are located on corresponding sides, B rod and D rod are located on corresponding sides, and the above-mentioned reinforcing rib plates 260 are welded between A rod and C rod and between B rod and D rod; the four second rods 212 welded on the bottom wall of the cross plate 220 are defined as E rod, F rod, G rod and H rod, respectively, wherein E rod and F rod belong to one frame 200, G rod and H rod belong to another frame 200, and E rod and G rod are located on corresponding sides, F rod and H rod are located on corresponding sides, and the above-mentioned reinforcing rib plates 260 are welded between E rod and G rod and between F rod and H rod.

[0062] More preferably, the stand 200 in this embodiment further includes a round rod 270 and a sleeve 280, wherein:

[0063] The two ends of the round rod 270 are respectively connected to the two vertical poles 210 of the same vertical frame 200. Specifically, the two ends of the round rod 270 can be directly welded and fixed to the two vertical poles 210, or the two ends of the round rod 270 can be welded and fixed to the reinforcing rib plate 260, so that the round rod 270 is fixed to the vertical poles 210. The sleeve 280 is rotatably sleeved on the round rod 270, so that the sleeve 280 can rotate between the two vertical poles 210 of the same vertical frame 200, and the side of the horizontal plate 220 close to the interlayer 400 is flush with the sleeve 280. In this way, the arrangement of the sleeve 280 makes it easier and more convenient for the plate 300 to enter the interlayer 400. Specifically, the plate 300 is overlapped on the sleeve 280. With the help of the rolling and supporting effect of the sleeve 280, the plate 300 can slide into the interlayer 400 more smoothly and overlap on the bottom bracket 100.

[0064] An optional implementation of this embodiment is as follows: the side block 500 includes a second bolt 510 and a fourth nut 520, a fourth through hole is provided on the horizontal plate 220 of one of the vertical frames 200, and a fifth through hole corresponding to the fourth through hole is provided on the horizontal plate 220 of the other vertical frame 200, and the second bolt 510 passes through the fourth through hole and the fifth through hole and is screwed with the fourth nut 520. When the plate 300 is placed in the interlayer 400 of the hanger, the second bolt 510 contacts the side end of the plate 300, thereby restricting the plate 300 in the interlayer 400, that is, preventing the plate 300 from moving out of the interlayer 400 from the side of the interlayer 400 without reason. When the plate 300 needs to be taken out, the second bolt 510 can be removed.

[0065] The number of the side guards 500 may be two, that is, one side guard 500 is respectively provided on both sides of the plate 300. The number of the side guards 500 may also be more, that is, a plurality of side guards 500 are respectively provided on both sides of the plate 300, and the plurality of side guards 500 are evenly distributed on the sides of the plate 300 in the vertical direction.

[0066] Of course, the side block 500 may also be other structures as long as it can be detachably installed between the two horizontal plates 220. For example, the side block 500 is a plate body, which is clamped between the two horizontal plates 220; or the side block 500 is a positioning pin, and pin holes are provided in the horizontal plates 220 of the two vertical frames 200, and the positioning pins are connected to the pin holes.

[0067] In order to facilitate the adjustment of the position of the second bolt 510 on the horizontal plate 220, so as to be suitable for plates 300 of different widths, the fourth through hole and the fifth through hole in this embodiment are both long through holes, and the length direction of the long through hole is horizontal, so that when a narrow plate 300 is placed in the interlayer 400, the second bolts 510 on both sides of the plate 300 are brought closer; when a wider plate 300 is placed in the interlayer 400, the second bolts 510 on both sides of the plate 300 are moved away. Of course, when the second bolt 510 is moved, the fourth nut 520 needs to be loosened, and when the second bolt 510 is moved to a suitable position, the fourth nut 520 is tightened.

[0068] Optionally, a cushion block 700 located at the bottom of the interlayer 400 is placed on the base 100, and the plate 300 is overlapped on the cushion block 700 to avoid direct contact between the plate 300 and the base 100. The cushion block 700 is a wooden square, so as to avoid direct contact between the plate 300 and the hard base 100, thereby protecting the plate 300.

[0069] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope recorded in the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A lifting device for lifting building panels, characterized in that: include: Bottom support (100); Two vertical frames (200), both mounted on the base (100), the two vertical frames (200) being arranged in parallel, and a sandwich (400) for vertically placing the plate (300) is formed between the two vertical frames (200); A side stopper (500) is detachably mounted between the two upright frames (200), the side stopper (500) is in contact with the side ends of the plate (300), and the side stopper (500) is mounted on both sides of the plate (300) to restrict the plate (300) in the interlayer (400) from both sides; The lifting lug (600) is fixedly connected to the stand (200).

2. The lifting device for lifting building boards according to claim 1, characterized in that: The stand (200) comprises: Two vertical poles (210), the bottom ends of which are both connected to the bottom bracket (100); The transverse plate (220) is connected between the top ends of the two vertical poles (210), the lifting lug (600) is fixedly mounted on the transverse plate (220), and the side stop (500) is detachably mounted between the transverse plates (220) of the two vertical frames (200).

3. The lifting device for lifting building boards according to claim 2, characterized in that: The vertical rod (210) is a telescopic rod so as to adjust the distance between the horizontal plate (220) and the bottom bracket (100).

4. The lifting device for lifting building boards according to claim 3, characterized in that: The vertical pole (210) comprises: A first rod (211), the bottom end of which is welded and fixed to the base (100), and a waist-shaped hole is provided on the upper part of the first rod (211), wherein the length direction of the waist-shaped hole is the vertical direction; A second rod (212), the top end of which is welded and fixed to the horizontal plate (220), and a first through hole corresponding to the position of the waist-shaped hole is opened at the bottom of the second rod (212); A first bolt (213) and a first nut (214), wherein the first bolt (213) passes through the first through hole and the waist-shaped hole and is then threadedly connected to the first nut (214).

5. The lifting device for lifting building boards according to claim 4, characterized in that: The stand (200) further comprises: A screw rod (230), wherein a second through hole is formed in the transverse plate (220), and a third through hole corresponding to the second through hole is formed in the base (100), and the screw rod (230) is inserted into the second through hole and the third through hole; A second nut (240) is screwed to the screw rod (230), and the second nut (240) is located above the transverse plate (220); The third nut (250) is threadedly connected to the screw rod (230), and the third nut (250) is located below the base (100).

6. The lifting device for lifting building boards according to claim 5, characterized in that: A reinforcing rib plate (260) is welded and fixed between the first rods (211) on corresponding sides of the two stands (200) and / or between the second rods (212) on corresponding sides of the two stands (200).

7. The lifting device for lifting building boards according to claim 2, characterized in that: The stand (200) further comprises: A round rod (270), both ends of which are respectively connected to the two vertical rods (210); The sleeve (280) is rotatably sleeved on the round rod (270), and the side of the transverse plate (220) close to the inner layer (400) is flush with the sleeve (280).

8. The lifting device for lifting building boards according to any one of claims 2 to 7, characterized in that: The side stop (500) comprises: A second bolt (510) and a fourth nut (520), wherein the transverse plate (220) of one of the vertical frames (200) is provided with a fourth through hole, and the transverse plate (220) of the other vertical frame (200) is provided with a fifth through hole corresponding to the fourth through hole, and the second bolt (510) passes through the fourth through hole and the fifth through hole and is then threadedly connected to the fourth nut (520).

9. The lifting device for lifting building boards according to claim 8, characterized in that: The fourth through hole and the fifth through hole are both long through holes, and the length direction of the long through holes is the horizontal direction.

10. The lifting device for lifting building boards according to claim 1, characterized in that: A cushion block (700) for cushioning the plate (300) is placed on the base (100).