Precast beam template lifting appliance
By designing an adjustable hook system, the problem of inconvenient connection between prefabricated beam formwork spreaders and reinforcement racks with different shapes is solved, and the stability and efficiency improvement during the lifting process is achieved.
Patent Information
- Application Number
- CN202422434767.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The hooks of existing prefabricated beam formwork spreaders cannot be effectively connected to reinforcement frames with different shapes, resulting in low versatility and affecting the template lifting efficiency.
A prefabricated beam formwork spreader is designed, including reinforcement frames, vertical beams, telescopic beams, sliders, pins, and motor-driven screw systems. Through the combination of sliders and pins, flexible adjustment and fixation of hooks are achieved, and reinforcement frames of different shapes are adapted to.
It improves the versatility and stability of the template spreader, avoids the phenomenon of shaking and decoupling of the hook during the lifting process, and improves the lifting efficiency and safety.
Smart Images
Figure CN223073734U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of precast beam processing, and particularly relates to a template lifting device for precast beams. Background Technique
[0002] Precast beams have the advantages of high construction standardization, easy control of quality and construction period, and are widely used in bridge engineering; the formwork for precast beam construction is frequently turned over, and a formwork lifting device with good versatility, light weight and convenient operation is required to improve the formwork lifting efficiency.
[0003] When disassembling and transferring the formwork, the prior art connects the lifting equipment with the lifting device, and hooks the cross beam on the strengthening frame through the hook on the lifting device to drive the formwork to transfer. Since the precast beam formworks are various, the shapes of the strengthening frames are also different. When dealing with strengthening frames of different shapes, because the hook is fixedly installed on the lifting device, if the hook is too short or too long, the hook cannot be effectively connected with the cross beam of the strengthening frame, resulting in low versatility. Content of the Utility Model
[0004] Based on this, the purpose of the utility model is to provide a template lifting device for precast beams to solve the technical problems in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A template lifting device for precast beams, including a strengthening frame and a vertical beam. One side of the vertical beam is connected with a telescopic beam. Through holes are arranged on the outer surface of the telescopic beam. A second slider is arranged inside the telescopic beam through a first sliding groove. A threaded hole is arranged on the inner wall of the second slider, and a pin is connected in the threaded hole and the through hole. A push-pull block is arranged on the outer surface of the second slider. One side of the second slider is connected with a pulling beam. A second lead screw is arranged inside the pulling beam. A third slider is arranged inside the pulling beam through a second sliding groove. One side of the second lead screw is connected with a rotating ring. The top of the third slider is connected with a hook.
[0006] Further, a stop bar is connected to the bottom of the vertical beam. One side of the top of the vertical beam is connected with a balance rod. One side of the balance rod is connected with a motor. The output end of the motor is connected with a first lead screw. A first slider is arranged outside the lead screw. A pulling ring is arranged on the top of the first slider.
[0007] By adopting the above technical solution, after the hook is fixed, the first lead screw is driven to rotate by the output end of the motor, so that the first lead screw drives the first slider to slide, thereby achieving the purpose of adjusting the center of gravity. The formwork is pulled to the designated position by fixing the pulling ring with the hook on the gantry.
[0008] Further, there are four groups of through holes, and the four groups of through holes are symmetrically distributed.
[0009] By adopting the above technical solution, the four groups of through holes are symmetric in pairs. Through the cooperation of the through holes and the pins, the second slider is locked, and then the pulling beam is fixed, avoiding the hook from disengaging due to shaking during the hoisting of the pulling beam.
[0010] Furthermore, both the pulling beam and the second slider are slidably connected to the first chute.
[0011] By adopting the above technical solution, when it is necessary to hoist a formwork with a relatively large depth, by pushing the push-pull block, the second slider drives the pulling beam to move in the first chute, so as to achieve the purpose of adjusting the length of the pulling beam to cope with formworks of different depths.
[0012] Furthermore, there are four pins and threaded holes respectively, and the four pins and threaded holes are symmetrically distributed.
[0013] By adopting the above technical solution, after inserting one end of the pin into the through hole and the threaded hole, rotate and tighten the pin, so as to achieve the purpose of fixing the pulling beam.
[0014] Furthermore, the pin is threadedly connected to the second slider, and the pin is detachably connected to the through hole.
[0015] By adopting the above technical solution, after adjusting the pulling beam to the required position, insert the pin into the threaded hole and tighten it to fix the second slider, avoiding the slider from driving the pulling beam to move, thus affecting the hoisting of the formwork.
[0016] Furthermore, the third slider is threadedly connected to the second lead screw, and both the third slider and the hook are slidably connected to the second chute.
[0017] By adopting the above technical solution, by rotating the rotating ring, the third slider moves to the required position, so as to adjust the hook to the required position for the formwork. When the hook hooks the formwork, self-locking is achieved between the second lead screw and the slider, avoiding the hook from moving during the hoisting process.
[0018] Furthermore, a cross beam is provided on the reinforcing frame, the reinforcing frame abuts against the retaining bar, and the cross beam abuts against the hook.
[0019] By adopting the above technical solution, during hoisting, the hook hooks the cross beam, and at the same time the retaining bar abuts against the column of the reinforcing frame. Under the action of the pulling force, the formwork is disengaged from the precast beam and hoisted.
[0020] Furthermore, reinforcing plates are provided on one side of the top and bottom of the telescopic beam. The cross section of the reinforcing plate is triangular, and the two reinforcing plates are symmetrically distributed.
[0021] By adopting the above technical solution, one side of the reinforcing plate is connected to the vertical beam, and the other side is connected to the telescopic beam. Through the reinforcing plate, the connection strength at the connection between the telescopic beam and the vertical beam is improved.
[0022] In summary, the utility model mainly has the following beneficial effects:
[0023] 1. By providing a second slider, a bolt, a telescopic beam and a push-pull block, the utility model enables the second slider to drive the pulling beam to move by pushing the push-pull block, adjusts the position of the hook to adapt to formworks with different depths, improves the versatility of the lifting tool. After reaching the required position, the bolt is inserted into the through hole and the threaded hole and then tightened and fixed to prevent the pulling beam from moving;
[0024] 2. By providing a second lead screw, a third slider and a swivel ring, when the hook hooks the reinforcing frame, the swivel ring is rotated to make the hook fit tightly with the reinforcing frame, and the self-locking between the second lead screw and the slider prevents the lifting tool from falling off due to shaking during hoisting. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 is a schematic structural view of the reinforcing frame of the utility model;
[0026] Figure 2 is a schematic structural view of the utility model;
[0027] Figure 3 is a schematic cross-sectional structural view of the telescopic beam of the utility model;
[0028] Figure 4 is a schematic cross-sectional structural view of the balance rod of the utility model;
[0029] Figure 5 is a schematic structural view of the pulling beam of the utility model;
[0030] Figure 6 is an exploded structural view of the telescopic beam of the utility model.
[0031] In the figure: 1. Reinforcing frame; 2. Stop bar; 3. Vertical beam; 4. Balance rod; 5. Motor; 6. First lead screw; 7. First slider; 8. Pulling ring; 9. Reinforcing plate; 10. Telescopic beam; 1001. Through hole; 1002. First chute; 11. Pulling beam; 1101. Second chute; 12. Second slider; 1201. Threaded hole; 13. Bolt; 14. Push-pull block; 15. Second lead screw; 16. Third slider; 17. Hook; 18. Swivel ring; 19. Cross beam. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0032] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.
[0033] The embodiments of the present utility model will be described below according to its overall structure.
[0034] Embodiment 1: A hoist for precast beam formwork, as Figures 1 - 6 shown, includes a strengthening frame 1 and a vertical beam 3. One side of the vertical beam 3 is connected with a telescopic beam 10. A through hole 1001 is provided on the outer surface of the telescopic beam 10. A second slider 12 is provided inside the telescopic beam 10 through a first chute 1002. A threaded hole 1201 is provided on the inner wall of the second slider 12, and a pin 13 is connected between the threaded hole 1201 and the through hole 1001. A push-pull block 14 is provided on the outer surface of the second slider 12. One side of the second slider 12 is connected with a pulling beam 11. A second lead screw 15 is provided inside the pulling beam 11. A third slider 16 is provided inside the pulling beam 11 through a second chute 1101. One side of the second lead screw 15 is connected with a rotating ring 18. The top of the third slider 16 is connected with a hook 17. A stop bar 2 is connected to the bottom of the vertical beam 3. One side of the top of the vertical beam 3 is connected with a balance bar 4. One side of the balance bar 4 is connected with a motor 5. The output end of the motor 5 is connected with a first lead screw 6. A first slider 7 is provided outside the lead screw. A pull ring 8 is provided on the top of the first slider 7. After the hook 17 is fixed, the output end of the motor 5 drives the first lead screw 6 to rotate, so that the first lead screw 6 drives the first slider 7 to slide, thereby achieving the purpose of adjusting the center of gravity. The template is pulled to the designated position by fixing the pull ring 8 with the hook 17 on the gantry.
[0035] Refer to Figure 2 and Figure 6 , in the above embodiment, four groups of through holes 1001 are respectively provided, and the four groups of through holes 1001 are symmetrically distributed, and the four groups of through holes 1001 are symmetrically paired in two. Through the cooperation of the through hole 1001 and the pin 13, the second slider 12 is locked, and then the pulling beam 11 is fixed, avoiding the hook 17 from being unhooked due to shaking during the hoisting of the pulling beam 11.
[0036] Refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 , in the above embodiment, both the pulling beam 11 and the second slider 12 are slidably connected with the first chute 1002. When hoisting a formwork with a relatively large depth, by pushing the push-pull block 14, the second slider 12 drives the pulling beam 11 to move in the first chute 1002, thereby achieving the purpose of adjusting the length of the pulling beam 11 to cope with formworks of different depths.
[0037] Refer to Figure 2 , Figure 3 , Figure 5 and Figure 6, in the above embodiment, there are four plug pins 13 and threaded holes 1201 respectively, and the four plug pins 13 and threaded holes 1201 are symmetrically distributed. After inserting one end of the plug pin 13 into the through hole 1001 and the threaded hole 1201, rotate and tighten the plug pin 13 to fix the tie beam 11.
[0038] Refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 , in the above embodiment, the plug pin 13 is threadedly connected to the second slider 12, and the plug pin 13 is detachably connected to the through hole 1001. After adjusting the tie beam 11 to the required position, insert the plug pin 13 into the threaded hole 1201 and tighten it to fix the second slider 12, preventing the slider from driving the tie beam 11 to move and thus affecting the hoisting of the formwork.
[0039] Refer to Figure 2 , Figure 3 and Figure 5 , in the above embodiment, the third slider 16 is threadedly connected to the second lead screw 15, and both the third slider 16 and the hook 17 are slidably connected to the second chute 1101. By rotating the swivel ring 18, the third slider 16 is moved to the required position, thus adjusting the hook 17 to the required position for the formwork. When the hook 17 hooks the formwork, self-locking is achieved between the second lead screw 15 and the slider to prevent the hook 17 from moving during hoisting.
[0040] Refer to Figure 1 , in the above embodiment, there is a cross beam 19 on the reinforcing frame 1. The reinforcing frame 1 abuts against the retaining bar 2, and the cross beam 19 abuts against the hook 17. During hoisting, the hook 17 hooks the cross beam 19, and at the same time, the retaining bar 2 abuts against the column of the reinforcing frame 1. Under the action of the pulling force, the formwork is separated from the precast beam and lifted.
[0041] Embodiment Two: In order to prevent the connection between the telescopic beam 10 and the vertical beam 3 from breaking due to the weight, Embodiment One is improved on the basis of Embodiment Two. Refer to Figure 2 and Figure 3 , on both sides of the top and bottom of the telescopic beam 10, there are reinforcing plates 9. The cross section of the reinforcing plates 9 is triangular, and the two reinforcing plates 9 are symmetrically distributed. One side of the reinforcing plate 9 is connected to the vertical beam 3, and the other side is connected to the telescopic beam 10. Through the reinforcing plates 9, the connection strength between the telescopic beam 10 and the vertical beam 3 is improved.
[0042] The implementation principle of the present utility model is as follows: When hoisting the formwork, connect the hook on the gantry with the pulling ring 8, transfer the lifting tool above the formwork, and by pushing the push-pull block 14, the second slider 12 drives the pulling beam 11 to move in the first chute 1002. When the pulling beam 11 reaches the appropriate position, insert the pin 13 into the through hole 1001 and the threaded hole 1201 and tighten it to fix the second slider 12. At this time, lift the lifting tool, drive the second lead screw 15 to rotate by rotating the rotating ring 18, so that the third slider 16 drives the hook 17 to hook and lock the cross beam 19, the stop bar 2 abuts against the column of the strengthening frame 1, drive the first lead screw 6 to rotate by the output end of the motor 5, and the first slider 7 drives the pulling ring 8 to move to adjust the center of gravity. After adjustment, lift the formwork for transfer.
[0043] Although the embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations without creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.
Claims
1. A precast beam formwork lifting device, comprising a reinforcement frame (1) and a vertical beam (3), characterized in that: One side of the vertical beam (3) is connected with a telescopic beam (10). Through holes (1001) are formed on the outer surface of the telescopic beam (10). A second slider (12) is arranged inside the telescopic beam (10) through a first chute (1002). A threaded hole (1201) is formed on the inner wall of the second slider (12), and a plug pin (13) is connected between the threaded hole (1201) and the through hole (1001). A push-pull block (14) is arranged on the outer surface of the second slider (12). One side of the second slider (12) is connected with a pulling beam (11). A second lead screw (15) is arranged inside the pulling beam (11). A third slider (16) is arranged inside the pulling beam (11) through a second chute (1101). One side of the second lead screw (15) is connected with a rotating ring (18). A hook (17) is connected to the top of the third slider (16).
2. The precast beam formwork lifting device according to claim 1, characterized in that: A stop bar (2) is connected to the bottom of the vertical beam (3). One side of the top of the vertical beam (3) is connected with a balance rod (4). One side of the balance rod (4) is connected with a motor (5). The output end of the motor (5) is connected with a first lead screw (6). A first slider (7) is arranged outside the lead screw. A pulling ring (8) is arranged on the top of the first slider (7).
3. The precast beam formwork lifting device according to claim 1, characterized in that: Four groups of the through holes (1001) are respectively arranged, and the four groups of through holes (1001) are symmetrically distributed.
4. The precast beam formwork lifting device according to claim 1, characterized in that: Both the pulling beam (11) and the second slider (12) are slidably connected with the first chute (1002).
5. A precast beam formwork lifting device according to claim 1, characterized in that: Four plug pins (13) and threaded holes (1201) are respectively arranged, and the four plug pins (13) and threaded holes (1201) are symmetrically distributed.
6. The precast beam formwork lifting device according to claim 1, characterized in that: The plug pin (13) is in threaded connection with the second slider (12), and the plug pin (13) is detachably connected with the through hole (1001).
7. A precast beam formwork lifting device according to claim 1, characterized in that: The third slider (16) is in threaded connection with the second lead screw (15), and both the third slider (16) and the hook (17) are slidably connected with the second chute (1101).
8. The precast beam formwork lifting device according to claim 1, wherein: A cross beam (19) is arranged on the reinforcing frame (1). The reinforcing frame (1) abuts against the stop bar (2), and the cross beam (19) abuts against the hook (17).
9. A precast beam formwork lifting device according to claim 1, characterized in that: Reinforcing plates (9) are respectively arranged on one side of the top and bottom of the telescopic beam (10). The cross section of the reinforcing plate (9) is triangular, and the two reinforcing plates (9) are symmetrically distributed.