Auxiliary beam hoisting device for T-beam prefabrication

Abstract

This invention discloses an auxiliary lifting device for T-beam prefabrication, belonging to the field of lifting beam installation technology. It includes a support frame with connecting components, including a guide cylinder located in the middle of the support frame. This invention ensures the stability of the T-beam during lifting by facilitating simultaneous positioning of all ends. The limiting plates and reinforcing rods are triangularly distributed, allowing each limiting plate and reinforcing rod to be positioned at the end and both sides of the T-beam. This facilitates the limiting plates wrapping around the ends of the T-beam, preventing swaying and offset during installation and lifting. The limiting ring slides on the support frame via a guide sleeve through the elasticity of a spring, facilitating the full deployment of the second connecting rods while ensuring uniform force distribution on each rod. This facilitates T-beam installation and demolding during prefabrication, preventing significant wear between the ends and the formwork that could damage the T-beam.

Description

Technical Field

[0001] This invention relates to the field of beam installation technology, and more specifically to an auxiliary beam lifting device for T-beam prefabrication. Background Technology

[0002] Currently, beam and slab production mainly relies on manual processing. The prefabrication of beams and slabs primarily includes the following steps: ① Installing and fixing the base; ② Tying and fabricating the reinforcing steel cage; ③ Erecting the outer formwork and fixing the end formwork; ④ Checking the inner formwork; ⑤ Pouring concrete; ⑥ Demolding; ⑦ Tensioning the steel strands (this step is not required for non-prestressed beams and slabs); ⑧ Curing to finished product; ⑨ Grouting and anchoring. The prefabrication of beams and slabs is mainly done manually, resulting in low production efficiency, low product precision, and high safety risks. In the T-beam prefabrication process, the erection of the end formwork is a crucial step. Ensuring that the dimensions of the prefabricated beam and slab structure and the slope of the beam and slab ends meet design requirements is a key construction focus. In actual construction, traditional construction techniques require multiple corrections and positioning. If the formwork is not firmly erected, problems such as formwork displacement leading to concrete leakage at the T-beam ends and structural dimensions not meeting design requirements may occur. Therefore, auxiliary beam-lifting devices are needed to assist in beam installation.

[0003] Among them, the patent with announcement number CN221116747U discloses a flexible prefabricated T-beam bottom lifting device, including a lifting mechanism, a support frame, a sliding frame, a reciprocating motor, a threaded rod, a slider, a threaded sleeve, a connecting piece, and a laser marking light. The inner side of the top of the support frame is connected to the outer side of the sliding frame, the right end of the sliding frame is connected to the inner end of the reciprocating motor, the output end of the reciprocating motor is connected to the right end of the threaded rod, the threaded rod is rotatably connected to the inner side of the sliding frame, the inner side of the sliding frame is also slidably connected to the outer side of the slider, a threaded sleeve is provided on the inner side of the slider, the inner wall of the threaded sleeve is screwed to the outer wall of the threaded rod, the bottom end of the slider is connected to the bottom end of the lifting mechanism, the output end of the lifting mechanism is connected to the outer side of the connecting piece, the middle part of the bottom end of the connecting piece is connected to the top of the laser marking light, and a projection mechanism is provided on the outer side of the sliding frame.

[0004] When in use, this structure uses a reciprocating motor to rotate the threaded rod inside the slide frame. The threaded rod engages with the threaded sleeve, causing the slider to slide to the corresponding position inside the slide frame and move the connecting piece. The laser marking light then stops at the endpoint position, completing the prefabrication construction. The laser marking projection can assist in measurement, making the prefabrication position more accurate and improving reliability. However, this structure makes it difficult to position the various ends of the lifting beam during installation, resulting in lower stability during beam installation. Summary of the Invention

[0005] The present invention provides an auxiliary lifting device for T-beam prefabrication, which aims to solve the problems mentioned in the background art.

[0006] The present invention is implemented as follows: The present invention provides the following technical solution: an auxiliary lifting beam device for T-beam prefabrication, comprising a support frame, wherein a connecting component is provided on the support frame;

[0007] The connecting assembly includes a guide cylinder disposed in the middle of the support frame. Several angle-adjustable first connecting rods are hinged to the outer side of the guide cylinder, and one end of each first connecting rod is hinged to an angle-adjustable second connecting rod. A positioning block is provided at the bottom of each of the multiple second connecting rods, and a shaft pin seat that is hinged to the corresponding second connecting rod is fixedly provided on one side of each positioning block.

[0008] Each of the multiple positioning blocks has a first positioning plate at its bottom and a second positioning plate at its top. Several angle-adjustable reinforcing rods are hinged to the outer side of the first positioning plate, and a limit plate is fixedly provided at the bottom of each reinforcing rod. Several angle-adjustable first electric push rods are hinged to the outer side of the second positioning plate, and each first electric push rod is located at the top of the corresponding reinforcing rod. A connecting frame is fixedly provided at one end of the first electric push rod, and the connecting frame covers the reinforcing rod and is hinged to the reinforcing rod.

[0009] As can be seen, in the above technical solution, the output end of the first electric push rod extends to drive the connecting frame to rotate the reinforcing tie rod along the axis point where the reinforcing tie rod connects with the first positioning plate. This causes the reinforcing tie rod to drive the limiting plate to deflect, and causes the limiting plates to converge or diverge. The limiting plates and the reinforcing tie rod are triangularly distributed, so that the limiting plates and the reinforcing tie rod are located at the ends and both sides of the T-beam. This makes it easy for the limiting plates to wrap around the ends of the T-beam, preventing the T-beam from shaking during installation and hoisting, which could cause the T-beam to shift during installation.

[0010] Optionally, in one possible implementation, a groove is provided on one side of each of the plurality of second connecting rods, and a slider is slidably connected in each groove. A spring is fixedly provided on each of the plurality of sliders. A limit ring is provided at the top of the second connecting rod. A plurality of connecting sleeves are provided on the limit ring, and one end of each spring extends to the corresponding connecting sleeve and is fixedly connected to the connecting sleeve. A plurality of crossbars are fixedly provided on the limit ring, and one end of each crossbar is rotatably connected to a guide sleeve. A plurality of guide sleeves extend to the support frame and are slidably connected to the support frame.

[0011] As can be seen, in the above technical solution, the second connecting rod deflection slider slides in the groove. The displacement of the slider due to the traction force when the second connecting rod deflects will cause the spring to be stressed. The spring's own elasticity positions the second connecting rod, so that the second connecting rod can be subjected to a certain resistance when it deflects, which is used to ensure the stability of the second connecting rod when it deflects. The limiting ring slides on the support frame through the spring's elasticity and guide sleeve, which facilitates the full unfolding of the second connecting rod while ensuring that each second connecting rod is subjected to uniform force. This facilitates the installation of the T-beam and also facilitates the demolding of the T-beam during the prefabrication construction process, avoiding large wear between the end and the template that could damage the T-beam.

[0012] Optionally, in one possible implementation, a second electric push rod is provided above the guide cylinder. The second electric push rod is bolted to the support frame, and its output end extends to the top of the guide cylinder and is detachably connected to the guide cylinder by bolts. Several lifting rods are provided on the outside of the second electric push rod. A column is provided at the bottom of the guide cylinder and is fixed to the support frame. The guide cylinder is sleeved on the outside of the column and is slidably connected to the column. The tops of the multiple lifting rods all penetrate the support frame and extend to the top of the support frame. The bottoms of the multiple lifting rods all extend to the outside of the guide cylinder and are detachably connected to the guide cylinder by bolts. A locking disc is provided at the top of the lifting rod. The multiple positioning blocks and the second connecting rod are triangularly distributed along the axis of the support frame, and each positioning block is rotatably connected to the corresponding second positioning disc.

[0013] As can be seen, in the above technical solution, after the second electric push rod is activated, the output end of the second electric push rod drives the guide cylinder to slide on the column. When the guide cylinder is displaced, it will drive the first connecting rod to displace, so that the second connecting rod rotates along the axis point at the connection between the second connecting rod and the support frame through the traction force when the first connecting rod is displaced. This allows each positioning block to unfold, making it easy for each positioning block to be placed on the three ends of the T beam, making it easy to simultaneously position each end of the T beam, and ensuring the stability of the T beam during hoisting.

[0014] The present invention has the following advantages:

[0015] 1. The present invention causes the first connecting rod to move when the guide cylinder moves, so that the second connecting rod rotates along the axis point at the connection between the second connecting rod and the support frame due to the traction force of the first connecting rod moving. This allows each positioning block to unfold, making it easy for each positioning block to be placed on the three ends of the T beam, making it easy to position each end of the T beam simultaneously, and ensuring the stability of the T beam during hoisting.

[0016] 2. In this invention, the output end of the first electric push rod extends to drive the connecting frame, causing the reinforcing tie rod to rotate along the axis point where the reinforcing tie rod connects with the first positioning plate. This causes the reinforcing tie rod to drive the limiting plate to deflect, and causes the limiting plates to converge or spread. The limiting plates and the reinforcing tie rod are triangularly distributed, so that the limiting plates and the reinforcing tie rod are located at the ends and both sides of the ends of the T-beam. This makes it easy for the limiting plates to wrap around the ends of the T-beam, preventing the T-beam from shaking during installation and hoisting, which could cause the T-beam to shift during installation.

[0017] 3. In this invention, the second connecting rod deflection slider slides in the groove. When the slider is deflected by the second connecting rod, the displacement of the slider will cause the spring to be stressed. The spring itself will position the second connecting rod through its elasticity, so that the second connecting rod can be subjected to a certain resistance when it deflects, which is used to ensure the stability of the second connecting rod when it deflects.

[0018] 4. The limiting ring of the present invention slides on the support frame through the elasticity of the spring and the guide sleeve, which makes it easy for the second connecting rod to be fully deployed while ensuring that each second connecting rod is subjected to uniform force. It is easy to install the T-beam and also easy to demold the T-beam during the prefabrication construction process, avoiding large wear between the end and the template that could damage the T-beam.

[0019] In summary, through the coordinated use of various structures, each positioning block is respectively placed over the three ends of the T-beam, facilitating simultaneous positioning of each end of the T-beam and ensuring its stability during hoisting. The limiting plates and reinforcing rods are triangularly distributed, allowing each limiting plate and reinforcing rod to be positioned at the ends and sides of the T-beam, facilitating the wrapping of the limiting plates around the ends of the T-beam and preventing swaying during installation and hoisting, which could cause misalignment during installation. The limiting ring slides on the support frame via a guide sleeve through the elasticity of a spring, facilitating the full unfolding of the second connecting rods while ensuring uniform force distribution on each second connecting rod. This facilitates T-beam installation and also facilitates T-beam demolding during prefabrication, preventing significant wear between the ends and the formwork that could damage the T-beam. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of this invention, the accompanying drawings used in some embodiments of this invention will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this invention, and those skilled in the art can obtain other drawings based on these drawings. Furthermore, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this invention.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a side view of the overall structure of the present invention.

[0023] Figure 3 This is a schematic diagram showing the first positioning plate, the second positioning plate, the first electric push rod, the connecting frame, the reinforcing tie rod, and the limiting support plate of the present invention installed together.

[0024] Figure 4 This is a perspective view of the first electric push rod, connecting frame, reinforcing tie rod, and limiting support plate of the present invention.

[0025] Figure 5 This is a perspective view of the positioning block, second connecting rod, limiting ring, crossbar, and guide sleeve of the present invention.

[0026] Figure 6 This is a schematic diagram showing the support frame, guide cylinder, first connecting rod, and second electric push rod of the present invention installed together.

[0027] Figure 7 For the present invention Figure 5 Exploded view.

[0028] Figure 8 This is a perspective view of the guide cylinder, the first connecting rod, and the second electric push rod of the present invention.

[0029] Figure 9 This is a perspective view of the support frame, column, lifting rod, and locking disc of the present invention.

[0030] In the diagram: 1. Support frame; 2. Guide cylinder; 3. First connecting rod; 4. Second connecting rod; 5. Positioning block; 6. Shaft pin seat; 7. First positioning plate; 8. Second positioning plate; 9. First electric push rod; 10. Connecting frame; 11. Reinforcing tie rod; 12. Limiting plate; 13. Slide groove; 14. Slider; 15. Spring; 16. Limiting ring; 17. Connecting sleeve; 18. Crossbar; 19. Guide sleeve; 20. Second electric push rod; 21. Lifting rod; 22. Column; 23. Locking plate. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] As attached Figure 1 - Figure 9The auxiliary lifting device for T-beam prefabrication shown uses connecting components on the support frame 1 and corresponding structural cooperation. Each positioning block 5 is respectively covered on the three ends of the T-beam, facilitating simultaneous positioning of each end of the T-beam and ensuring the stability of the T-beam during hoisting. The limiting plate 12 and reinforcing rod 11 are triangularly distributed, allowing each limiting plate 12 and reinforcing rod 11 to be located at the ends and both sides of the ends of the T-beam, facilitating the limiting plate 12 to wrap around the ends of the T-beam and preventing the T-beam from shaking during installation and hoisting, thus avoiding displacement during installation. The limiting ring 16 slides on the support frame 1 through the guide sleeve 19 via the elasticity of the spring 15, facilitating the full unfolding of the second connecting rod 4 while ensuring uniform force on each second connecting rod 4, facilitating T-beam installation, and also facilitating T-beam demolding during T-beam prefabrication construction, avoiding significant wear between the ends and the template that could damage the T-beam. The specific structural settings of the components are as follows.

[0033] The connecting assembly includes a guide cylinder 2 located in the middle of the support frame 1. Several angle-adjustable first connecting rods 3 are hinged to the outside of the guide cylinder 2, and one end of each first connecting rod 3 is hinged to an angle-adjustable second connecting rod 4. The bottom of each of the multiple second connecting rods 4 is provided with a positioning block 5, and one side of each positioning block 5 is fixedly provided with a shaft pin seat 6 that is hinged to the corresponding second connecting rod 4.

[0034] Each of the multiple positioning blocks 5 has a first positioning disk 7 at its bottom and a second positioning disk 8 at its top. Several angle-adjustable reinforcing rods 11 are hinged to the outer side of the first positioning disk 7, and a limit plate 12 is fixedly installed at the bottom of each reinforcing rod 11. Several angle-adjustable first electric push rods 9 are hinged to the outer side of the second positioning disk 8, and each first electric push rod 9 is located at the top of the corresponding reinforcing rod 11. A connecting frame 10 is fixedly installed at one end of the first electric push rod 9. The connecting frame 10 covers the reinforcing rod 11 and is hinged to the reinforcing rod 11.

[0035] Each of the multiple second connecting rods 4 has a sliding groove 13 on one side, and a slider 14 is slidably connected in each sliding groove 13. A spring 15 is fixedly installed on each slider 14. A limit ring 16 is provided at the top of the second connecting rod 4. Several connecting sleeves 17 are provided on the limit ring 16, and one end of each spring 15 extends to the corresponding connecting sleeve 17 and is fixedly connected to the connecting sleeve 17. Several crossbars 18 are fixedly installed on the limit ring 16, and one end of each crossbar 18 is rotatably connected to a guide sleeve 19. Several guide sleeves 19 extend to the support frame 1 and are slidably connected to the support frame 1.

[0036] A second electric push rod 20 is provided above the guide cylinder 2. The second electric push rod 20 is installed on the support frame 1 by bolts, and the output end of the second electric push rod 20 extends to the top of the guide cylinder 2 and is detachably connected to the guide cylinder 2 by bolts. Several lifting rods 21 are provided on the outside of the second electric push rod 20. A column 22 is provided at the bottom of the guide cylinder 2. The column 22 is fixed on the support frame 1. The guide cylinder 2 is sleeved on the outside of the column 22 and is slidably connected to the column 22. The tops of the multiple lifting rods 21 all penetrate the support frame 1 and extend to the top of the support frame 1. The bottoms of the multiple lifting rods 21 all extend to the outside of the guide cylinder 2 and are detachably connected to the guide cylinder 2 by bolts. A locking disc 23 is provided at the top of the lifting rod 21. Multiple positioning blocks 5 and the second connecting rod 4 are triangularly distributed along the axis of the support frame 1, and each positioning block 5 is rotatably connected to the corresponding second positioning disc 8.

[0037] According to the above structure, when in use, the staff installs the device on the crane. When assisting in the installation of the T-beam, the second electric push rod 20 is activated. The output end of the second electric push rod 20 drives the guide cylinder 2 to slide on the column 22. When the guide cylinder 2 moves, it will drive the first connecting rod 3 to move, so that the second connecting rod 4 rotates along the axis point where the second connecting rod 4 connects with the support frame 1 through the traction force when the first connecting rod 3 moves. This allows each positioning block 5 to unfold, making it easy for each positioning block 5 to cover the three ends of the T-beam. This facilitates the simultaneous positioning of each end of the T-beam and ensures the stability of the T-beam during hoisting.

[0038] Furthermore, when the T-beam is being hoisted, it can be started by the first electric push rod 9. The output end of the first electric push rod 9 extends to drive the connecting frame 10, causing the reinforcing tie rod 11 to rotate along the axis point where the reinforcing tie rod 11 connects with the first positioning plate 7. This causes the reinforcing tie rod 11 to drive the limiting plate 12 to deflect, and causes the limiting plates 12 to converge or disperse. The limiting plates 12 and the reinforcing tie rod 11 are triangularly distributed, so that the limiting plates 12 and the reinforcing tie rod 11 are located at the ends of the T-beam and on both sides of the ends. This makes it easy for the limiting plates 12 to wrap around the ends of the T-beam, preventing the T-beam from shaking during installation and hoisting, which could cause the T-beam to shift during installation.

[0039] Furthermore, when the second connecting rod 4 deflects, the deflection slider 14 slides within the groove 13. The displacement of the slider 14 due to the traction force of the second connecting rod 4 deflection will cause the spring 15 to be stressed. The elasticity of the spring 15 positions the second connecting rod 4, so that the second connecting rod 4 can be subjected to a certain resistance when it deflects, which is used to ensure the stability of the second connecting rod 4 when it deflects. The limiting ring 16 slides on the support frame 1 through the guide sleeve 19 via the elasticity of the spring 15, which facilitates the full unfolding of the second connecting rod 4 while ensuring that each second connecting rod 4 is subjected to uniform force. This facilitates the installation of the T-beam and also facilitates the demolding of the T-beam during the prefabrication process, avoiding large wear between the end and the template that could damage the T-beam.

[0040] Unlike existing technologies, this application discloses an auxiliary lifting device for T-beam prefabrication. Through the corresponding cooperation of various structures, each positioning block 5 is respectively covered on the three ends of the T-beam, which facilitates the simultaneous positioning of each end of the T-beam and ensures the stability of the T-beam during hoisting. The limiting plate 12 and the reinforcing tie rod 11 are triangularly distributed, so that each limiting plate 12 and the reinforcing tie rod 11 can be located at the end of the T-beam and on both sides of the end. This makes it easy for the limiting plate 12 to wrap around the end of the T-beam, preventing the T-beam from shaking during installation and hoisting, which could cause the T-beam to deviate during installation. The limiting ring 16 slides on the support frame 1 through the guide sleeve 19 via the elasticity of the spring 15, which facilitates the full unfolding of the second connecting rod 4 while ensuring that each second connecting rod 4 is evenly stressed. This facilitates the installation of the T-beam and also facilitates the demolding of the T-beam during the prefabrication process, avoiding large wear between the end and the template that could damage the T-beam.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary lifting device for T-beam prefabrication, comprising a support frame, characterized in that: The support frame is equipped with a connecting component; The connecting assembly includes a guide cylinder disposed in the middle of the support frame. Several angle-adjustable first connecting rods are hinged to the outer side of the guide cylinder, and one end of each first connecting rod is hinged to an angle-adjustable second connecting rod. A positioning block is provided at the bottom of each of the multiple second connecting rods, and a shaft pin seat that is hinged to the corresponding second connecting rod is fixedly provided on one side of each positioning block. Each of the positioning blocks has a first positioning plate at its bottom and a second positioning plate at its top. Several angle-adjustable reinforcing rods are hinged to the outer side of the first positioning plate, and a limit plate is fixedly provided at the bottom of each reinforcing rod. The outer side of the second positioning plate is hinged with several angle-adjustable first electric push rods, and each first electric push rod is located on the top of a corresponding reinforcing tie rod. One end of the first electric push rod is fixedly provided with a connecting frame, which covers the reinforcing tie rod and is hinged to the reinforcing tie rod. A second electric push rod is provided above the guide cylinder. The second electric push rod is mounted on the support frame by bolts, and the output end of the second electric push rod extends to the top of the guide cylinder and is detachably connected to the guide cylinder by bolts. The multiple positioning blocks and the second connecting rods are triangularly distributed along the axis of the support frame, and each positioning block is rotatably connected to the corresponding second positioning disk. Each positioning block is respectively installed on the three ends of the T-beam to ensure the stability of the T-beam during hoisting. The limiting plates and reinforcing rods are triangularly distributed, so that each limiting plate and reinforcing rod is located at the end and both sides of the end of the T-beam. This makes it easy for the limiting plates to wrap around the end of the T-beam, preventing the T-beam from shaking during installation and hoisting, which could cause the T-beam to shift during installation. It also makes it easier for the T-beam to be demolded during the prefabrication process, avoiding large wear between the end and the formwork that could damage the T-beam.

2. The auxiliary lifting beam device for T-beam prefabrication as described in claim 1, characterized in that: Each of the second connecting rods has a groove on one side, and each groove has a slider that is slidably connected to it. Each slider has a spring fixedly installed on it.

3. The auxiliary lifting beam device for T-beam prefabrication as described in claim 2, characterized in that: The top of the second connecting rod is provided with a limiting ring, and the limiting ring is provided with a plurality of connecting sleeves, and one end of each spring extends to the corresponding connecting sleeve and is fixedly connected to the connecting sleeve.

4. The auxiliary lifting beam device for T-beam prefabrication as described in claim 3, characterized in that: The limiting ring is fixedly provided with several crossbars, and one end of each crossbar is rotatably connected to a guide sleeve. The multiple guide sleeves extend to the support frame and are slidably connected to the support frame.

5. The auxiliary lifting beam device for T-beam prefabrication as described in claim 1, characterized in that: The second electric push rod has several lifting rods on its outer side, and the bottom of the guide cylinder has a column, which is fixed on the support frame.

6. The auxiliary lifting beam device for T-beam prefabrication as described in claim 5, characterized in that: The guide cylinder is sleeved on the outside of the column and slidably connected to the column. The tops of the multiple lifting rods all pass through the support frame and extend to the top of the support frame.

7. The auxiliary lifting beam device for T-beam prefabrication as described in claim 6, characterized in that: The bottom of each of the lifting rods extends to the outside of the guide cylinder and is detachably connected to the guide cylinder by bolts, and a locking disc is provided at the top of the lifting rod.

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