A hoisting device for the construction of prefabricated buildings

Abstract

The present invention discloses a hoisting device for prefabricated building construction, which includes a hoisting frame, an alignment template and a correction device. The hoisting frame includes a cross beam, and each end of the cross beam is rotatably connected to a suspension rod. The lower end of the suspension rod is fixedly connected with a limit block, and a clamping groove is arranged on one side of the limit block; the alignment template includes a flat plate, a stepped hole is arranged on the flat plate, two vertical rods are fixedly connected to one side of the flat plate, and a calibration hole is arranged on each vertical rod; the correction device includes a correction plate, and a correction hole is arranged on the correction plate. In the present invention, the correction plate is synchronously lowered by a lifting hydraulic cylinder, so that after the steel bars are exposed from the ring, they can enter the jacks at the bottom of the wall panel. Compared with the existing operation method of directly observing whether the steel bars can be inserted into the jacks, the calibration method is set outside the wall panel, thereby facilitating the improvement of the assembly efficiency and assembly safety.

Description

Technical Field

[0001] The present invention relates to the technical field of building assembly, and particularly to a hoisting device for prefabricated building construction. Background Art

[0002] A prefabricated building refers to a building in which a large amount of on-site operation work in the traditional construction method is transferred to a factory. Building components and fittings (such as floor slabs, wall panels, stairs, balconies, etc.) 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.

[0003] When hoisting a wall panel onto the reserved steel bars on the platform, some steel bars may be collided or have a position deviation before pouring, resulting in the wall panel being unable to be hoisted to the predetermined position. At this time, some construction workers may not operate according to the specifications, use simple tools or put their hands under the wall panel, thus posing a safety hazard, and the lack of a reference object makes the assembly not smooth. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art, and to propose a hoisting device for prefabricated building construction, so as to solve the problem that when hoisting and assembling wall panels in the prior art, several steel bars are skewed and inconvenient to butt.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A hoisting device for prefabricated building construction includes a hoisting frame, an alignment template and a correction device.

[0007] The hoisting frame includes a cross beam. Each end of the cross beam is rotatably connected to a suspension rod. The lower end of the suspension rod is fixedly connected to a limit block, and a card slot is provided on one side of the limit block.

[0008] The alignment template includes a flat plate. A stepped hole is provided on the flat plate. Two vertical rods are fixedly connected to one side of the flat plate, and a correction hole is provided on each vertical rod.

[0009] The correction device includes a correction plate, and a correction hole is provided on the correction plate.

[0010] The correction device further includes a mobile trolley. A vertical plate is fixedly connected to the upper side of the mobile trolley. A sliding groove is provided on the vertical plate. A slider is slidably connected in the sliding groove. A lifting hydraulic cylinder is fixedly connected to the upper side of the mobile trolley. The telescopic rod of the lifting hydraulic cylinder is fixedly connected to the slider, and the correction plate is fixedly connected to the slider.

[0011] A guiding groove is provided on one side of the correction plate. A circular ring is rotatably connected to the inner end of the guiding groove. The inner hole of the circular ring forms a correction hole. A notch is provided on the outer circle of the circular ring and forms a major arc structure. The notch can be aligned with the guiding groove.

[0012] The outer side of the circular ring is provided with teeth, a rack is slidably connected inside the correction plate, the rack is meshed with the circular ring through the teeth, one side of the correction plate is fixedly connected with a transverse hydraulic cylinder, and the telescopic rod of the transverse hydraulic cylinder is fixedly connected with the rack.

[0013] The bottom of the circular ring is coaxially and fixedly connected with a conical cover.

[0014] One side of the correction plate is fixedly connected with a support rod, the upper end of the support rod is fixedly connected with a guide ring, a threaded hole is provided on one side of the limit block, a guide rod is threadedly connected in the threaded hole, and the guide ring can be slidably matched with the guide rod.

[0015] A guide inclined surface is arranged at the open end of the guide groove.

[0016] The advantages of the present invention are as follows: in the hoisting device for prefabricated building construction provided by the present invention, by placing an alignment template on each of the steel bars on both sides, the flat plate is placed on the steel bars through the step holes, and then when the wall panel is lowered, it is observed whether the calibration holes can be aligned with the grouting holes of the wall panel, so as to check whether the steel bars can be smoothly inserted into the insertion holes at the bottom of the wall panel when the wall panel continues to be lowered. If the inspection is qualified, the alignment template is removed, avoiding the situation in the prior art where construction workers squat halfway to observe the insertion condition, thereby improving safety.

[0017] In the present invention, the correction plate is lowered synchronously with the wall panel through the lifting hydraulic cylinder, so that the steel bars can enter the insertion holes at the bottom of the wall panel after being exposed from the circular ring. Compared with the existing operation method of directly observing whether the steel bars can be inserted into the insertion holes, the calibration method is set outside the wall panel, thus facilitating the improvement of the assembly efficiency and assembly safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the schematic diagram of wall panel hoisting of the present invention;

[0019] Figure 2 is Figure 1 the partial enlarged schematic diagram at M in

[0020] Figure 3 is Figure 1 the partial enlarged schematic diagram at N in

[0021] Figure 4 is the structural schematic diagram of the correction device in the present invention;

[0022] Figure 5 is the schematic diagram of another perspective of the correction device in the present invention;

[0023] Figure 6 is the schematic diagram of the circular ring enclosing the steel bars in the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] As Figures 1-6 shown, a hoisting device for prefabricated building construction provided by the present invention includes a hoisting frame 1, an alignment template 2 and a correction device 3.

[0026] The hoisting frame 1 includes a cross beam 11. Each end of the cross beam 11 is rotatably connected to a suspension rod 12. The lower end of the suspension rod 12 is fixedly connected to a limit block 13. A card slot 14 is provided on one side of the limit block 13. A rubber buffer pad is arranged inside the card slot 14. The rotation fulcrum of the suspension rod 12 and the cross beam 11 is arranged. When hoisting the wall panel 10, the limit block 13 is assisted to be stuck on both sides of the suspension rod 12 to prevent the wall panel 10 from shaking greatly when encountering wind, thereby improving the hoisting safety.

[0027] Among them, Figure 1 as shown, one of the suspension rods 12 is in a state of rotating away, which is for the convenience of explanation and is not the state required in actual hoisting.

[0028] The alignment template 2 includes a flat plate 21. A stepped hole 22 is provided on the flat plate 21. Two vertical rods 23 are fixedly connected to one side of the flat plate 21. Each vertical rod 23 is provided with a calibration hole 24. An alignment template is placed on each of the steel bars on both sides. The flat plate 21 is placed on the steel bar through the stepped hole 22. Then when the wall panel 10 is lowered, it is observed whether the calibration hole 24 can be aligned with the grouting hole 20 of the wall panel 10, so as to check whether the steel bar can be smoothly inserted into the insertion hole at the bottom of the wall panel when the wall panel is further lowered. If the inspection is qualified, the alignment template 2 is removed, avoiding the situation where construction workers squat down to observe the insertion condition in the prior art, thereby improving safety.

[0029] The correction device 3 includes a correction plate 31. A correction hole 32 is provided on the correction plate 31. The correction device 3 is used only after the alignment template 2 finds a problem.

[0030] When using the present invention, the cross beam 11 suspends the wall panel 10 through a sling in the existing manner. The alignment template 2 plays a role in predicting whether it can be smoothly inserted. When the steel bar cannot be smoothly inserted into the insertion hole at the bottom of the wall panel 10, the skewed steel bar is corrected through the correction hole 32 of the correction plate 31, thereby avoiding the use of unsafe tools such as crowbars by construction workers for correction operations and improving safety.

[0031] The correction device 3 further includes a moving trolley 33. A vertical plate 34 is fixedly connected to the upper side of the moving trolley 33. A sliding groove 35 is provided on the vertical plate 34. A slider 36 is slidably connected in the sliding groove 35. A lifting hydraulic cylinder 37 is fixedly connected to the upper side of the moving trolley 33. The telescopic rod of the lifting hydraulic cylinder 37 is fixedly connected to the slider 36. The correction plate 31 is fixedly connected to the slider 36;

[0032] One side of the correction plate 31 is provided with a guiding groove 38. The inner end of the guiding groove 38 is rotatably connected to a circular ring 39. The inner hole of the circular ring 39 forms a correction hole 32. The outer circle of the circular ring 39 is provided with a notch 391 and forms a major arc structure. The bottom of the circular ring 39 is coaxially fixedly connected to a conical cover 6. The notch 391 can be aligned with the guiding groove 38. The opening end of the guiding groove 38 is provided with a guiding inclined surface 381; the side surface of the conical cover 6 is also grooved in the same way as the circular ring 39. The slope surface of the conical cover 6 is convenient for guiding when the correction plate 31 descends. If the upper end of the steel bar is deflected, the upper end of the steel bar can be corrected to enter the circular ring 39 through the conical surface of the conical cover 6, so as to facilitate the subsequent docking and insertion of the wall panel 10 and improve the assembly efficiency of the wall panel 10.

[0033] Furthermore, teeth are provided on the outer side of the circular ring 39. A rack 4 is slidably connected in the correction plate 31. The rack 4 is meshed with the circular ring 39 through the teeth. A transverse hydraulic cylinder 5 is fixedly connected to one side of the correction plate 31. The telescopic rod of the transverse hydraulic cylinder 5 is fixedly connected to the rack 4; a support rod 311 is fixedly connected to one side of the correction plate 31. A guiding ring 312 is fixedly connected to the upper end of the support rod 311. A threaded hole 313 is provided on one side of the limiting block 13. A guiding rod 314 is threadedly connected in the threaded hole 313. The guiding ring 312 can be slidably adapted to the guiding rod 314. The cooperation between the guiding ring 312 and the guiding rod 314 adopts a clearance fit, and the clearance is smaller than the clearance between the steel bar and the lower end jack hole of the wall panel 10.

[0034] The present invention judges whether it is necessary to correct the steel bar introduced into the circular ring 39 through the cooperation between the guiding rod 314 and the guiding ring 312. After the steel bar enters the circular ring 39, and then the cooperation between the guiding ring 312 and the guiding rod 314, that is, after the guiding rod 314 passes through the guiding ring 312, it can be assembled with the threaded hole 313. After the positions of the steel bars are calibrated on the front and back sides of the wall panel 10 respectively, it means that the positions are correct;

[0035] If there is a large deviation, then control the transverse hydraulic cylinder 5 to push the rack 4 to slide and drive the circular ring 39 to rotate. The notch 391 on the side surface of the rotated circular ring 39 forms a closure. At this time, move the position of the correction plate 31, and the steel bar can be pushed for correction, so that it finally meets the above calibration requirements;

[0036] Subsequently, after removing the guide rod 314, while lowering the wall panel 10, the lifting hydraulic cylinder 37 synchronously lowers the correction plate 31, so that after the steel bars are exposed from the circular ring 39, they can enter the insertion holes at the bottom of the wall panel 10. Compared with the existing operation method of directly observing whether the steel bars can be inserted into the insertion holes, the calibration method is set outside the wall panel, thus facilitating the improvement of the assembly efficiency and assembly safety;

[0037] Finally, after the steel bars are inserted into the insertion holes of the wall panel 10, the circular ring 39 rotates and makes the notch 391 align with the guide groove 38 again, so that the correction plate 31 can leave the steel bars from the side under the movement of the moving trolley 33, and then the wall panel 10 is completely lowered in place, completing the hoisting operation of the wall panel 10.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hoisting device for prefabricated building construction, comprising a hoisting frame (1), an alignment template (2) and a correction device (3), characterized in that: The hoisting frame (1) includes a cross beam (11), and each end of the cross beam (11) is rotatably connected to a suspension rod (12). The lower end of the suspension rod (12) is fixedly connected to a limit block (13), and a clamping groove (14) is provided on one side of the limit block (13); The alignment template (2) includes a flat plate (21), a stepped hole (22) is provided on the flat plate (21), and two vertical rods (23) are fixedly connected to one side of the flat plate (21). Each vertical rod (23) is provided with a correction hole (24); The correction device (3) includes a correction plate (31), and a correction hole (32) is provided on the correction plate (31); The correction device (3) further includes a mobile trolley (33). A vertical plate (34) is fixedly connected to the upper side of the mobile trolley (33). A chute (35) is provided on the vertical plate (34), and a slider (36) is slidably connected in the chute (35). A lifting hydraulic cylinder (37) is fixedly connected to the upper side of the mobile trolley (33). The telescopic rod of the lifting hydraulic cylinder (37) is fixedly connected to the slider (36), and the correction plate (31) is fixedly connected to the slider (36); A guiding groove (38) is provided on one side of the correction plate (31). The inner end of the guiding groove (38) is rotatably connected to a ring (39). The inner hole of the ring (39) forms a correction hole (32). The outer circle of the ring (39) is provided with a notch (391) and forms a major arc structure. The notch (391) can be aligned with the guiding groove (38); Teeth are provided on the outer side of the ring (39). A rack (4) is slidably connected in the correction plate (31). The rack (4) is engaged with the ring (39) through the teeth. A transverse hydraulic cylinder (5) is fixedly connected to one side of the correction plate (31). The telescopic rod of the transverse hydraulic cylinder (5) is fixedly connected to the rack (4); A conical cover (6) is coaxially fixedly connected to the bottom of the ring (39); A support rod (311) is fixedly connected to one side of the correction plate (31). The upper end of the support rod (311) is fixedly connected to a guiding ring (312). A threaded hole (313) is provided on one side of the limit block (13). A guiding rod (314) is threadedly connected in the threaded hole (313). The guiding ring (312) can be slidably adapted to the guiding rod (314); A guiding inclined surface (381) is provided at the opening end of the guiding groove (38).

Images