A wall positioning device for prefabricated buildings

Abstract

The present invention relates to the field of prefabricated buildings, and particularly to a wall positioning device for prefabricated buildings. The present invention provides a wall positioning device for prefabricated buildings, which can make the wall more stable during the hoisting process, and can also make the mounting holes on the wall more accurately aligned with the mounting steel bars, and install and protect the wall more efficiently. A wall positioning device for prefabricated buildings includes a floor slab, mounting steel bars, a bottom plate, etc.; five mounting steel bars are fixedly connected to the top of the floor slab, a wall is suspended between two hooks, and two bottom plates are fixedly connected to the top of the floor slab. The staff hoists the wall and moves it downward, and pushes two push rods, so that the mounting steel bars will be stuck into the mounting holes on the wall. After the wall assembly and installation are completed, the wall can fall more stably, and the mounting holes at the bottom of the wall can be more accurately aligned with the mounting steel bars, so that the wall can be installed more efficiently while being protected.

Description

Technical Field

[0001] The present invention relates to the field of prefabricated buildings, and particularly to a wall positioning device for prefabricated buildings. Background Art

[0002] A prefabricated building refers to a building in which a large amount of on-site work in the traditional construction method is transferred to a factory. Building components and fittings are processed and manufactured in the factory and transported to the building construction site, and are assembled and installed on-site through reliable connection methods. When installing a finished wall, it is necessary to position between the floor base and the wall, and then perform assembly and installation.

[0003] In the construction process of existing prefabricated buildings, due to the heavy weight of the wall, it is not easy to limit the position of the wall, which will cause a large swing amplitude when the wall moves downward, and it is easy to damage the wall during the positioning process. Moreover, the steel bars on the floor slab are prone to be slightly inclined, which will make it difficult to align the installation holes on the wall with the installation steel bars on the floor slab, resulting in low positioning efficiency of the wall. Summary of the Invention

[0004] Aiming at the above-mentioned shortcomings or deficiencies of the existing technology, the present invention provides a wall positioning device for prefabricated buildings, which can make the wall more stable during the hoisting process, and can also make the installation holes on the wall more accurately aligned with the installation steel bars, and install and protect the wall more efficiently.

[0005] The technical implementation plan of the present invention is: a wall positioning device for prefabricated buildings, including a floor slab, installation steel bars, bottom plates, protective covers, positioning frames, extrusion steel bar components and guiding components. Five installation steel bars are fixedly connected to the top of the floor slab. A wall is suspended between two hooks, and five installation holes are opened at the bottom of the wall. Two bottom plates are fixedly connected to the top of the floor slab. The two bottom plates are symmetrically arranged. Two protective covers are fixedly connected to the tops of the two bottom plates. Positioning frames are fixedly connected to both of the two bottom plates. The two positioning frames are symmetrically arranged and in contact with each other. The tops of the two positioning frames are provided with inclined surfaces. The extrusion steel bar components are arranged on the top plates, and the guiding components are arranged on the guiding components.

[0006] Furthermore, the extrusion steel bar components include a slotted frame, a first sliding block, a support spring, a push rod, a connecting frame, a return spring and a pressing wheel. The slotted frames are fixedly connected to the tops of the two bottom plates. The first sliding blocks are slidably connected to the two slotted frames. The two slotted frames are symmetrically arranged. A support spring is connected between the slotted frame and the first sliding block. The push rods are slidably connected to the two first sliding blocks. The connecting frames are fixedly connected to the two push rods. A return spring is connected between the first sliding block and the connecting frame. The pressing wheels are rotatably connected to the two connecting frames.

[0007] Furthermore, the guiding component includes a connecting rod, a fixing frame, and a pressing roller. Connecting rods are fixedly connected to the tops of the two connecting frames. Fixing frames are fixedly connected to the upper parts of the two connecting rods. Pressing rollers are rotatably connected to the two fixing frames.

[0008] Furthermore, a reinforcing bar straightening component is further included. The reinforcing bar straightening component is arranged on the top of the bottom plate. The reinforcing bar straightening component includes a limiting groove plate, a second sliding block, a return spring, a sliding rod, a movable rod, a reset spring, a guiding groove plate, an inclined plane block, and a convex block. Limiting groove plates are fixedly connected to the tops of the two bottom plates. Second sliding blocks are slidably connected to the two limiting groove plates. Return springs are connected between the limiting groove plates and the second sliding blocks. Sliding rods are slidably connected to the two second sliding blocks. Movable rods are slidably connected to the two sliding rods. Reset springs are connected between the sliding rods and the movable rods. Guiding groove plates are fixedly connected to the tops of the two bottom plates. The two guiding groove plates are symmetrically arranged. Guiding inclined grooves are formed in the two guiding groove plates. Inclined plane blocks are fixedly connected to the guiding inclined grooves in the two guiding groove plates. Inclined planes are provided on the two inclined plane blocks. The movable rod is located in the limiting groove on the guiding groove plate. Convex blocks are fixedly connected to the tops of the two push rods. Two inclined planes are provided on the two convex blocks.

[0009] Furthermore, fixing blocks are further included. Fixing blocks are fixedly connected to the two convex blocks.

[0010] Furthermore, a positioning component is further included. The positioning component is arranged on the sliding rod. The positioning component includes a fixing rod, a limiting block, a pressing spring, and a positioning plate. Fixing rods are fixedly connected to the tops of the two sliding rods. Limiting blocks are slidably connected to the two fixing rods. Pressing springs are connected between the fixing rods and the limiting blocks. Positioning plates are fixedly connected to the two limiting blocks. The two positioning plates are in contact.

[0011] Furthermore, inclined planes are provided on the two positioning plates.

[0012] Furthermore, a roller shaft and a buffer roller are further included. Three roller shafts are rotatably connected to each of the two positioning plates. A buffer roller is fixedly connected to each roller shaft. The three buffer rollers form a group.

[0013] The beneficial effects of the present invention are as follows: The staff hoists the wall to directly above the floor slab through a lifting hook and slowly moves it downward, so that the installation holes at the bottom of the wall are preliminarily aligned with the installation steel bars. Then, the staff simultaneously pushes two push rods in the direction of approaching each other, so that the installation holes at the bottom of the wall are aligned with the installation steel bars. Then, the staff releases the two push rods, so that the installation steel bars will be stuck into the installation holes at the bottom of the wall to limit the wall. The assembly and installation of the wall are completed. In this way, the wall can be limited and guided through the extrusion rollers and the positioning frame, so that the wall falls more stably during the hoisting process, and then the installation holes at the bottom of the wall are more accurately aligned with the installation steel bars, so that the wall can be installed more efficiently while being protected.

[0014] When the lifting hook hoists the wall and moves it downward, the bottom of the wall will contact both movable rods, and the wall will push the movable rods to move downward along the guiding inclined grooves on the guiding groove plate. The extrusion rollers will limit the wall, so that the wall no longer swings. In this way, the weight of the wall can be used to drive the extrusion wheel to limit the wall, so that the burden on the staff can be reduced, and then the positioning efficiency of the wall can be improved.

[0015] When the sliding rod pushes the convex block to move horizontally along the inclined surface on the upper part of the convex block, the sliding rod will push the fixed block to move downward, and the pressing wheel will straighten the installation steel bar. In this way, the weight of the wall can be used to drive the pressing wheel to squeeze the installation steel bar, so that the pressing wheel squeezes and straightens the installation steel bar, and then the installation steel bar is more accurately aligned with the installation hole at the bottom of the wall, so that the wall can be assembled more efficiently.

[0016] When the staff hoists the wall and moves it downward, the wall will contact the inclined surfaces on the two positioning plates, and the positioning plates will buffer the wall under the elastic action of the compression springs, so that the swinging amplitude of the wall is reduced, and thus the wall is more stable during the hoisting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 is a three-dimensional structural schematic diagram of the wall, the bottom plate and the sliding rod of the present utility model.

[0019] Figure 3 is a partial three-dimensional structural schematic diagram of the present invention.

[0020] Figure 4 is a three-dimensional structural schematic diagram of the positioning component of the present invention.

[0021] Figure 5 For the present invention Figure 4 is an enlarged three-dimensional structural schematic diagram of A in.

[0022] Figure 6 Schematic three-dimensional structure diagram of the guiding component of the present invention.

[0023] Figure 7 For the present invention Figure 3 Enlarged three-dimensional structure diagram of B in the present invention.

[0024] Figure 8 Partial three-dimensional structure diagram of the positioning component of the present invention.

[0025] Figure 9 Schematic three-dimensional structure diagram of the guiding groove plate and the inclined plane block of the present invention.

[0026] Figure 10 Schematic three-dimensional structure diagram of the connecting frame, pressing wheel and movable rod of the present invention.

[0027] Meanings of the reference numerals in the figure: 11: floor slab, 12: installation steel bar, 13: lifting hook, 14: wall, 2: bottom plate, 3: protective cover, 4: positioning frame, 51: one-word groove frame, 52: sliding block one, 53: support spring, 54: push rod, 55: connecting frame, 56: return spring, 57: pressing wheel, 61: connecting rod, 62: fixing frame, 63: extrusion roller, 71: limit groove plate, 72: sliding block two, 73: reset spring, 74: sliding rod, 75: movable rod, 76: return spring, 77: guiding groove plate, 78: inclined plane block, 79: convex block, 8: fixing block, 91: fixing rod, 92: limit block, 93: extrusion spring, 94: positioning plate, 101: roller shaft, 102: buffer roller. Detailed implementation manners

[0028] All the standard parts used in the present invention can be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the drawings. The specific connection manners of each part all adopt the conventional means such as bolts, rivets, welding, and pasting which are mature in the prior art, and will not be elaborated herein.

[0029] Embodiment 1: A wall positioning device for prefabricated buildings, as Figures 1 - 10 shown, comprising a floor slab 11, installation steel bars 12, a bottom plate 2, a protective cover 3, a positioning frame 4, a steel bar extrusion component and a guiding component. Five installation steel bars 12 are connected to the top of the floor slab 11 by bolts. A wall 14 is suspended between two lifting hooks 13. Five installation holes are formed at the bottom of the wall 14. Two bottom plates 2 are connected to the top of the floor slab 11 by bolts. The two bottom plates 2 are symmetrically arranged. Two protective covers 3 are connected to the tops of the two bottom plates 2 by bolts. Two positioning frames 4 are connected to the two bottom plates 2 by bolts. The two positioning frames 4 are symmetrically arranged and in contact with each other. The tops of the two positioning frames 4 are both provided with inclined planes. The steel bar extrusion component is arranged on the top plate, and the guiding component is arranged on the guiding component.

[0030] The extruded steel bar component includes a one - slot frame 51, a first sliding block 52, a support spring 53, a push rod 54, a connecting frame 55, a return spring 56 and a pressing wheel 57. On the top of both of the two bottom plates 2, a one - slot frame 51 is connected by bolts. A first sliding block 52 is slidably connected to both of the two one - slot frames 51. The two one - slot frames 51 are symmetrically arranged. A support spring 53 is connected between the one - slot frame 51 and the first sliding block 52 by a hook. A push rod 54 is slidably connected to both of the two first sliding blocks 52. A connecting frame 55 is connected to both of the two push rods 54 by bolts. A return spring 56 is connected between the first sliding block 52 and the connecting frame 55 by a hook. A pressing wheel 57 is rotatably connected to both of the two connecting frames 55.

[0031] The guiding component includes a connecting rod 61, a fixing frame 62 and an extrusion roller 63. A connecting rod 61 is connected to the top of both of the two connecting frames 55 by bolts. A fixing frame 62 is connected to the upper part of both of the two connecting rods 61 by bolts. An extrusion roller 63 is rotatably connected to both of the two fixing frames 62.

[0032] At first, the staff hoisted the wall body 14 above the floor slab 11 through the lifting hook 13 and slowly moved it downward, so that the installation holes at the bottom of the wall body 14 were initially aligned with the installation steel bars 12. Then, the staff simultaneously pushed the two push rods 54 in the direction of approaching each other. The movement of the push rods 54 would drive the connecting frame 55 and the connecting rod 61 to move horizontally. The return spring 56 would be stretched. The movement of the connecting frame 55 would drive the pressing wheel 57 to move horizontally. The pressing wheel 57 would contact the installation steel bar 12 and squeeze the installation steel bar 12. At the same time, the movement of the connecting rod 61 would drive the fixing frame 62 to move horizontally. The movement of the fixing frame 62 would drive the extrusion roller 63 to move horizontally. The wall body 14 would contact the two extrusion rollers 63. The extrusion rollers 63 would limit the position of the wall body 14, so that the wall body 14 would no longer swing. Further, the installation holes at the bottom of the wall body 14 would be aligned with the installation steel bars 12. Then, the staff released the two push rods 54. The return spring 56 would reset, and the return spring 56 would drive the push rods 54, the connecting frame 55, the pressing wheel 57, the connecting rod 61, the fixing frame 62 and the extrusion rollers 63 to move horizontally in the reverse direction and reset. The pressing wheel 57 would be separated from the installation steel bar 12, and the extrusion rollers 63 would be separated from the wall body 14. Then, the wall body 14 continued to move downward. The wall body 14 would contact the inclined surfaces of the two positioning frames 4. The positioning frames 4 would guide the wall body 14, so that the installation holes at the bottom of the wall body 14 would be more accurately aligned with the installation steel bars 12. The installation steel bars 12 would be stuck into the installation holes at the bottom of the wall body 14, so that the installation steel bars 12 would limit the position of the wall body 14. The bottom of the wall body 14 would contact the top of the floor slab 11, and the assembly and installation of the wall body 14 would be completed. The staff would remove the lifting hook 13 and disassemble the device. In this way, the wall body 14 can be limited and guided by the extrusion rollers 63 and the positioning frames 4, so that the wall body 14 can fall more stably during the hoisting process. Furthermore, the installation holes at the bottom of the wall body 14 can be more accurately aligned with the installation steel bars 12, so that the wall body 14 can be installed more efficiently while being protected.

[0033] Embodiment 2: On the basis of Embodiment 1, as Figures 2 - 10As shown, it further includes a straightening steel bar component. The straightening steel bar component is arranged on the top of the bottom plate 2. The straightening steel bar component includes a limiting groove plate 71, a second sliding block 72, a return spring 73, a sliding rod 74, a movable rod 75, a reset spring 76, a guiding groove plate 77, an inclined plane block 78 and a convex block 79. The limiting groove plates 71 are connected to the top of the two bottom plates 2 by bolts. The second sliding blocks 72 are slidably connected to the two limiting groove plates 71. A return spring 73 is connected between the limiting groove plate 71 and the second sliding block 72 by a hook. The sliding rods 74 are slidably connected to the two second sliding blocks 72. The movable rods 75 are slidably connected to the two sliding rods 74. A reset spring 76 is connected between the sliding rod 74 and the movable rod 75 by a hook. The guiding groove plates 77 are connected to the top of the two bottom plates 2 by bolts. The two guiding groove plates 77 are symmetrically arranged. Guiding inclined grooves are formed in the two guiding groove plates 77. The inclined plane blocks 78 are connected to the guiding inclined grooves in the two guiding groove plates 77 by bolts. Inclined planes are provided on the two inclined plane blocks 78. The movable rod 75 is located in the limiting groove on the guiding groove plate 77. The convex blocks 79 are connected to the tops of the two push rods 54 by bolts. Two inclined planes are provided on the two convex blocks 79.

[0034] When the lifting hook 13 hoists the wall body 14 and moves downward, the bottom of the wall body 14 will contact both of the movable rods 75. The wall body 14 will push the movable rods 75 to move downward along the guiding inclined grooves on the guiding groove plate 77. The downward movement of the movable rods 75 will drive the second sliding block 72 to move downward, the return spring 73 will be compressed, and the sliding rod 74 will contact the inclined surface on the upper part of the convex block 79. The sliding rod 74 will push the convex block 79 to move towards the direction close to the wall body 14. The movement of the convex block 79 will drive the push rod 54, the connecting frame 55, the pressing wheel 57, the connecting rod 61, the fixing frame 62 and the extrusion roller 63 to all move horizontally. The return spring 56 will be stretched, and the extrusion roller 63 will limit the wall body 14, so that the wall body 14 will no longer swing. Then the movable rods 75 will move along the guiding inclined grooves on the guiding groove plate 77 in the reverse direction away from the connecting rod 61. The movement of the movable rods 75 will drive the sliding rod 74 to move in the reverse direction away from the connecting rod 61. The sliding rod 74 will be separated from the contact with the convex block 79. The return spring 56 will reset. The reset of the return spring 56 will drive the push rod 54, the connecting frame 55, the pressing wheel 57, the connecting rod 61, the fixing frame 62, the extrusion roller 63 and the convex block 79 to all move horizontally in the reverse direction to reset. The continuous movement of the movable rods 75 will contact the inclined surface on the inclined surface block 78. The inclined surface block 78 will squeeze the movable rods 75 to move horizontally, and the return spring 76 will be stretched. The movable rods 75 will be separated from the contact with the inclined surface block 78. The return spring 76 will reset. The reset of the return spring 76 will drive the movable rods 75 to move horizontally in the reverse direction to reset. The movable rods 75 will be separated from the contact with the wall body 14. The return spring 73 will reset. The reset of the return spring 73 will drive the second sliding block 72 to move upward to reset. The reset of the second sliding block 72 will drive the sliding rod 74 to move upward to reset. The reset of the sliding rod 74 will drive the movable rods 75 to move upward to reset. In this way, it is possible to drive the extrusion wheel 57 to limit the wall body 14 by the weight of the wall body 14, so as to reduce the burden on the staff and further improve the positioning efficiency of the wall body 14.

[0035] Embodiment 3: On the basis of Embodiment 2, as Figure 4 shown, it further includes a fixing block 8, and the fixing block 8 is connected to both of the convex blocks 79 by bolts.

[0036] When the sliding rod 74 pushes the lug 79 to move horizontally along the inclined surface on the upper part of the lug 79, the sliding rod 74 will contact the fixed block 8. The sliding rod 74 will push the fixed block 8 to move downward. The downward movement of the fixed block 8 will drive the lug 79 to move downward. The downward movement of the lug 79 will drive the push rod 54 to move downward. The downward movement of the push rod 54 will drive the connecting frame 55, the pressing wheel 57 and the first sliding block 52 to all move downward. The support spring 53 will be compressed. The pressing wheel 57 will straighten the installed steel bar 12. When the movable rod 75 is disengaged from the fixed block 8, the lug 79 will drive the fixed block 8 to move upward and reset under the action of the support spring 53. In this way, the weight of the wall 14 can be used to drive the pressing wheel 57 to extrude the installed steel bar 12, so that the pressing wheel 57 extrudes and straightens the installed steel bar 12, and further makes the installed steel bar 12 more accurately aligned with the installation hole at the bottom of the wall 14, thereby more efficiently assembling the wall 14.

[0037] Embodiment 4: On the basis of Embodiment 3, as Figures 4 - 8 shown, it further includes a positioning component. The positioning component is arranged on the sliding rod 74. The positioning component includes a fixed rod 91, a limiting block 92, a compression spring 93 and a positioning plate 94. The tops of the two sliding rods 74 are both connected with the fixed rod 91 through bolts. The two fixed rods 91 are both slidably connected with the limiting block 92. The compression spring 93 is connected between the fixed rod 91 and the limiting block 92 through a hook. The two limiting blocks 92 are both connected with the positioning plate 94 through bolts. The two positioning plates 94 are in contact, and inclined surfaces are provided on both of the two positioning plates 94.

[0038] When the staff hoists the wall 14 and moves it downward, the wall 14 will contact the inclined surfaces on the two positioning plates 94. The positioning plates 94 will buffer the wall 14 under the elastic action of the compression spring 93, reducing the swinging amplitude of the wall 14, so that the wall 14 is more stable during the hoisting process.

[0039] Embodiment 5: On the basis of Embodiment 4, as Figure 8 shown, it further includes a roller shaft 101 and a buffer roller 102. Three roller shafts 101 are rotatably connected to each of the two positioning plates 94. A buffer roller 102 is connected to each roller shaft 101 through bolts. The three buffer rollers 102 are a group.

[0040] The buffer roller 102 can reduce the friction between the wall 14 and the positioning plate 94, thereby further buffering the wall 14.

[0041] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A wall positioning device for prefabricated buildings, characterized in that: It includes a floor slab (11), installation steel bars (12), a bottom plate (2), a protective cover (3), a positioning frame (4), a steel bar extrusion component and a guiding component. Five installation steel bars (12) are fixedly connected to the top of the floor slab (11). A wall body (14) is suspended between two hooks (13). Five installation holes are opened at the bottom of the wall body (14). Two bottom plates (2) are fixedly connected to the top of the floor slab (11). The two bottom plates (2) are symmetrically arranged. Two protective covers (3) are fixedly connected to the tops of the two bottom plates (2). Positioning frames (4) are fixedly connected to both of the two bottom plates (2). The two positioning frames (4) are symmetrically arranged and in contact with each other. Inclined surfaces are provided at the tops of the two positioning frames (4). The steel bar extrusion component is arranged on the bottom plate (2), and the guiding component is arranged on the steel bar extrusion component; The steel bar extrusion component includes a slotted frame (51), a first sliding block (52), a support spring (53), a push rod (54), a connecting frame (55), a return spring (56) and a pressing wheel (57). Slotted frames (51) are fixedly connected to the tops of the two bottom plates (2). First sliding blocks (52) are slidably connected to the two slotted frames (51). The two slotted frames (51) are symmetrically arranged. Support springs (53) are connected between the slotted frames (51) and the first sliding blocks (52). Push rods (54) are slidably connected to the two first sliding blocks (52). Connecting frames (55) are fixedly connected to the two push rods (54). Return springs (56) are connected between the first sliding blocks (52) and the connecting frames (55). Pressing wheels (57) are rotatably connected to the two connecting frames (55); It further includes a straightening steel bar component. The straightening steel bar component is arranged on the top of the bottom plate (2). The straightening steel bar component includes a limit groove plate (71), a second sliding block (72), a return spring (73), a sliding rod (74), a movable rod (75), a reset spring (76), a guide groove plate (77), an inclined plane block (78) and a convex block (79). The top of each of the two bottom plates (2) is fixedly connected with a limit groove plate (71). A second sliding block (72) is slidably connected to each of the two limit groove plates (71). A return spring (73) is connected between the limit groove plate (71) and the second sliding block (72). A sliding rod (74) is slidably connected to each of the two second sliding blocks (72). A movable rod (75) is slidably connected to each of the two sliding rods (74). A reset spring (76) is connected between the sliding rod (74) and the movable rod (75). The top of each of the two bottom plates (2) is fixedly connected with a guide groove plate (77). The two guide groove plates (77) are symmetrically arranged. Guide inclined grooves are formed in each of the two guide groove plates (77). An inclined plane block (78) is fixedly connected to the guide inclined groove of each of the two guide groove plates (77). Each of the two inclined plane blocks (78) is provided with an inclined plane. The movable rod (75) is located in the limit groove of the guide groove plate (77). The top of each of the two push rods (54) is fixedly connected with a convex block (79). Each of the two convex blocks (79) is provided with two inclined planes.

2. The wall positioning device for prefabricated buildings according to claim 1, characterized in that: The guiding component includes a connecting rod (61), a fixing frame (62) and a pressing roller (63). The top of each of the two connecting frames (55) is fixedly connected with a connecting rod (61). The upper part of each of the two connecting rods (61) is fixedly connected with a fixing frame (62). A pressing roller (63) is rotatably connected to each of the two fixing frames (62).

3. The wall positioning device for prefabricated buildings according to claim 2, characterized in that: It further includes a fixing block (8). A fixing block (8) is fixedly connected to each of the two convex blocks (79).

4. The wall positioning device for prefabricated buildings according to claim 3, characterized in that: It further includes a positioning component. The positioning component is arranged on the sliding rod (74). The positioning component includes a fixing rod (91), a limiting block (92), a pressing spring (93) and a positioning plate (94). The top of each of the two sliding rods (74) is fixedly connected with a fixing rod (91). A limiting block (92) is slidably connected to each of the two fixing rods (91). A pressing spring (93) is connected between the fixing rod (91) and the limiting block (92). A positioning plate (94) is fixedly connected to each of the two limiting blocks (92). The two positioning plates (94) are in contact with each other.

5. The wall positioning device for prefabricated buildings according to claim 4, characterized in that: Each of the two positioning plates (94) is provided with an inclined plane.

6. The wall positioning device for prefabricated buildings according to claim 4, characterized in that: It further includes a roller shaft (101) and a buffer roller (102). Three roller shafts (101) are rotatably connected to each of the two positioning plates (94). A buffer roller (102) is fixedly connected to each roller shaft (101). The three buffer rollers (102) form a group.

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