Integral manufacturing jig frame for steel bars of pi-shaped pier capping beam and mounting method of integral manufacturing jig frame

Abstract

The invention relates to a pi-shaped pier cover beam reinforcing steel bar integration manufacturing jig frame and an installation method thereof, belongs to the technical field of reinforcing cage machining, and aims to solve the problems that an existing jig frame is poor in mountainous area uneven ground adapting capacity, reinforcing steel bars are prone to displacement under canyon strong wind, positioning precision is insufficient, and universality is poor. The jig frame comprises a foundation supporting seat, height adjusting supporting legs, an integral supporting frame, a positioning block I, a positioning block II, a self-locking mechanism and a driving assembly, the height adjusting supporting legs are matched with the uneven ground and achieve leveling, the integral supporting frame is detachably assembled, the positioning blocks achieve accurate positioning of reinforcing steel bars, and the driving assembly drives the self-locking mechanism through wind power. According to the automatic locking and resetting device, a pure mechanical structure is adopted, electric driving is not needed, the automatic locking and resetting device is suitable for mountainous area canyon construction scenes, the positioning precision is high, the universality is high, dismounting and mounting are convenient and rapid, repeated turnover can be achieved, the construction cost is effectively reduced, the construction efficiency and safety are improved, and the automatic locking and resetting device is suitable for integral manufacturing of pi-shaped pier bent cap steel bars.

Description

Technical Field

[0001] This invention belongs to the field of steel cage processing technology, and relates to a jig for the integrated fabrication of steel reinforcement for π-shaped pier cap beams and its installation method. Background Technology

[0002] As a crucial load-bearing component in bridge structures, the π-shaped pier cap beam is widely used in bridge construction in complex terrains such as mountainous areas and canyons. The precision and efficiency of its rebar tying directly affect the structural strength, construction quality, and service life of the pier cap beam. In the construction of the π-shaped pier cap beam, the integral fabrication of the rebar is a key process, and the jig, as the core tooling for rebar tying, is used to position, support, and shape the rebar. Its performance directly determines the precision of the rebar tying, construction efficiency, and construction safety.

[0003] Currently, most of the jigs used for fabricating steel reinforcement for π-shaped pier cap beams follow the traditional fixed structure design. This design presents numerous technical drawbacks in complex construction scenarios such as mountainous areas and canyons, severely impacting construction progress, quality, and safety. Specifically: Firstly, the base of traditional formwork is mostly a rigid fixed structure without self-adjusting leveling function. Before construction, an absolutely level concrete floor or thick steel plate needs to be poured on site to ensure the levelness and stability of the formwork. However, in mountainous construction, the terrain is complex and the terrain is steep. Pouring a level floor or laying a steel plate not only requires a lot of manpower, material resources and financial resources, which greatly increases the initial civil engineering costs, but also has a long construction period, which seriously affects the construction progress. At the same time, the foundation in mountainous areas is mostly soft and prone to settlement. Traditional formwork does not have the corresponding self-adjusting ability. When the foundation settles, the formwork is prone to tilting and instability, which can lead to the displacement of steel bars, affect the construction quality, and even cause safety accidents.

[0004] Secondly, the canyon area has a unique terrain and variable climate, with instantaneous winds reaching the level of a strong typhoon, and the highest instantaneous wind force can reach level 14. The construction environment is extremely harsh. Traditional formwork for limiting the rebar is mostly a static open structure, which can only achieve simple positioning and has no active wind-resistant locking function. When encountering strong gusts, the rebar cage that is not yet firmly tied is very easy to slide and twist on the formwork, causing the overall size of the rebar to deviate. This not only affects the accuracy of rebar tying, but may also cause safety accidents such as rebar cage falling, posing a great threat to construction safety, and may even require work to be stopped for evacuation, seriously affecting the construction progress.

[0005] Therefore, we propose an integral fabrication jig for the reinforcing bars of a π-shaped pier cap beam and its installation method to solve the problems mentioned above. Summary of the Invention

[0006] In view of this, in order to solve the above problems, the present invention provides a prefabrication frame for the integral fabrication of reinforcing bars of a π-shaped pier cap beam and its installation method.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a prefabrication frame for the integral fabrication of reinforcing bars of a π-shaped pier cap beam, comprising: Foundation support; Multiple height-adjustable outriggers are assembled at the bottom of the foundation support to adapt to uneven terrain in mountainous areas and to achieve horizontal leveling of the foundation support. Multiple integral support frames are detachably assembled on the top of the foundation support base. The integral support frame includes a transverse support plate and two support columns fixed to the top of the transverse support plate. Positioning block I and positioning block II are both slidably assembled on the side of the two supporting columns that are close to each other. Positioning block I has a U-shaped slot for limiting the annular constraint rib, and positioning block II has an assembly groove for positioning the transverse reinforcing rib. The self-locking mechanism is located in the positioning block II and includes an eccentric locking wheel and a rotating shaft I. The two are connected by a transmission. The rotating shaft I drives the eccentric locking wheel to rotate, clamping the transverse reinforcing rib in the assembly groove. The drive assembly, located on the side integral support frame, uses wind power to drive the rotating shaft I to rotate, thereby achieving automatic locking of the transverse reinforcing ribs.

[0008] The foundation support includes two connecting plates. One of the connecting plates is fixedly equipped with multiple adjusting rods on one side. The multiple adjusting rods are slidably assembled on the bottom of the other connecting plate. By adjusting the rods and the connecting plate in a sliding fit, the overall width of the foundation support can be adjusted to adapt to the fabrication of π-shaped pier cap beam reinforcement of different sizes.

[0009] The height-adjustable outrigger includes multiple mechanical lifting jacks. The output end of each mechanical lifting jack is fixedly connected to the bottom of a connecting plate. A ball joint is fixedly mounted on the bottom of each mechanical lifting jack. A support base plate is embedded in the ball head at the bottom of the ball joint. The ball joint can rotate at any angle. In conjunction with the height fine-tuning of the mechanical lifting jack, the support base plate is made to fit tightly against the uneven ground.

[0010] The bottom of the transverse support plate is fixed with multiple guide positioning pins, and the top of the connecting plate is provided with a precision positioning hole that matches the guide positioning pin. The guide positioning pin is inserted into the precision positioning hole to achieve precise positioning of the overall support frame and the foundation support seat, and at the same time, it plays a limiting role for the two connecting plates.

[0011] The self-locking mechanism also includes a support bearing seat fixed to the outside of the overall support frame. A rotating shaft II is rotatably mounted through the top of the support bearing seat. The outer walls of the rotating shaft II and the rotating shaft I are slidably fitted with the same guide sliding sleeve. The transmission connection and disconnection between the rotating shaft II and the rotating shaft I are realized by the sliding of the guide sliding sleeve.

[0012] The self-locking mechanism also includes a guide sliding strip and a rotating support seat II. The guide sliding strip is slidably assembled on one side of the support column. The rotating support seat II is rotatably sleeved on the outer wall of the guide sliding sleeve and is fixedly connected to the guide sliding strip through the rectangular opening on the support column. Pushing the guide sliding strip up and down can drive the rotating support seat II to be inserted into and separated from the rotating shaft I, thereby fixing the positions of the positioning block II and the positioning block I.

[0013] The drive assembly includes a transmission rack slidably mounted on the top of the support bearing seat, a transmission gear meshing with the transmission rack fixedly mounted on the top of the rotating shaft II, a rotating support seat I fixedly mounted on one side of the support column, a linkage rotating rod rotatably mounted inside the rotating support seat I, and multiple wind-receiving deflection blades fixedly mounted on the top of the linkage rotating rod. The wind blows the wind-receiving deflection blades to drive the linkage rotating rod to rotate, and then drives the rotating shaft I to rotate through the meshing of the transmission rack and the transmission gear.

[0014] The two adjacent transmission racks and the side transmission rack are all connected to the linkage rotating rod by traction cable I. One end of the traction cable I is fixedly connected to the transmission rack, and the other end is fixed to the rotating support seat II by fastening bolts. One end of the transmission rack and the outer wall of the linkage rotating rod are provided with threaded holes that are compatible with the fastening bolts.

[0015] The bottom of the positioning block II is rotatably fitted with a connecting shaft. The eccentric locking wheel is fixedly sleeved on the connecting shaft. The bottom outer wall of the connecting shaft is fixedly sleeved with a connecting disc I. The bottom outer wall of the rotating shaft I is fixedly sleeved with a connecting disc II. The connecting disc I and the connecting disc II are connected by a traction cable II. The outer wall of the connecting shaft is sleeved with a reset torsion spring. The two ends of the reset torsion spring are fixedly connected to the bottom of the positioning block II and the outer wall of the connecting shaft, respectively, for driving the eccentric locking wheel to reset.

[0016] An installation method for an integral fabrication jig for the reinforcing bars of a π-shaped pier cap beam, applied to the aforementioned integral fabrication jig for the reinforcing bars of a π-shaped pier cap beam, includes the following steps: S1. Join the two connecting plates together to form a basic support base, adjust the relative position of the adjusting rod and the connecting plate, and tighten the bolts to fix it; S2. Assemble the height-adjustable outriggers at the bottom of the connecting plate, fine-tune the height of the mechanical lifting jack, and use the ball joint to make the support base plate fit the ground to ensure that the foundation support seat is level. S3. Assemble the entire support frame onto the top of the foundation support by using guide positioning pins and precise positioning holes, fix it and check its stability. S4. Assemble positioning block I and positioning block II onto the support column, fix the connecting strip and the anti-detachment limit block, and adjust the position of the positioning block; S5. Assemble the self-locking mechanism, assemble each component in sequence to ensure that the guide sliding sleeve slides smoothly and the reset torsion spring is firmly assembled. S6. Assemble the drive assembly, mesh the transmission rack and transmission gear, fix the traction cable I and adjust the tension; S7. Conduct a comprehensive inspection of the connections and operating status of all components to ensure that the jig is not loose or stuck and meets the requirements for construction and use.

[0017] The beneficial effects of this invention are as follows: 1. The π-shaped pier cap beam steel reinforcement integral fabrication frame disclosed in this invention consists of a height-adjustable support leg composed of a mechanical lifting jack, a ball joint universal joint, and a support base plate. The ball joint universal joint can rotate at any angle. Combined with the height fine-tuning function of the mechanical lifting jack, it can make the support base plate fit tightly against uneven ground, eliminating the need to pour a horizontal concrete floor or lay a heavy steel plate, which greatly reduces the initial civil engineering cost of construction in mountainous areas. At the same time, it ensures that the foundation support is always in a horizontal state, avoids the frame tilting and instability, and ensures construction safety. 2. The π-shaped pier cap beam steel reinforcement integral fabrication jig disclosed in this invention, through the coordinated cooperation of the drive component and the self-locking mechanism, uses wind deflection blades to capture wind energy and convert it into mechanical power. This power is transmitted through components such as the transmission rack, transmission gear, and rotating shaft to drive the eccentric locking wheel to rotate and clamp the transverse reinforcing bars, achieving automatic locking and resetting with "locking when the wind comes and loosening when the wind goes". This effectively prevents the steel bars that are not firmly tied from slipping or twisting due to strong winds, ensuring the accuracy of steel bar tying and avoiding construction quality problems and safety accidents caused by steel bar displacement. 3. The π-shaped pier cap beam reinforcement integral fabrication jig disclosed in this invention uses the U-shaped slot of positioning block I to laterally limit the annular restraint reinforcement. The anti-detachment limiting block can prevent the annular restraint reinforcement from detaching. The assembly groove of positioning block II and the U-shaped positioning groove of the transverse support plate realize the positioning of the transverse reinforcing bars. The cooperation of the guide positioning pin and the precision positioning hole can realize the precise positioning of the overall support frame and the foundation support seat. At the same time, it plays a limiting role for the connecting plate, ensuring the precise positioning of the reinforcement in all aspects and avoiding the displacement of the reinforcement that affects the structural performance of the pier cap beam. 4. The π-shaped pier cap beam reinforcement integral fabrication jig disclosed in this invention consists of two connecting plates spliced ​​together for the foundation support seat. The overall width of the foundation support seat can be flexibly adjusted by the sliding cooperation of the adjusting rod and the sliding hole, which can adapt to the processing of cap beam reinforcement of different specifications. The number of the overall support frame can be flexibly adjusted according to the length of the pier cap beam, breaking the limitation of the fixed size of the traditional jig and improving the applicability of the jig.

[0018] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a three-dimensional structural diagram of a fabrication jig for the integral reinforcement of a π-shaped pier cap beam according to the present invention. Figure 2 This is a schematic diagram of the foundation support structure of the integral fabrication frame for the reinforcing steel bars of the π-shaped pier cap beam according to the present invention; Figure 3 This is a schematic diagram of the overall support frame and foundation support structure of the integral fabrication jig for the reinforcing steel bars of the π-shaped pier cap beam according to the present invention. Figure 4 This is a schematic diagram of the positioning block and steel structure of the integral fabrication frame for the steel reinforcement of a π-shaped pier cap beam according to the present invention. Figure 5 This is a schematic diagram of the connection structure between the self-locking mechanism and the supporting column of the integral fabrication jig for the reinforcing steel bars of a π-shaped pier cap beam according to the present invention. Figure 6 This is a schematic diagram of the self-locking mechanism structure of the integral fabrication frame for the reinforcing bars of a π-shaped pier cap beam according to the present invention; Figure 7 This is a schematic diagram of the connection structure between the traction cable I and the transmission rack of the integral fabrication jig for the reinforcing steel bars of a π-shaped pier cap beam according to the present invention.

[0020] Reference numerals: 1. Foundation support; 11. Connecting plate; 12. Adjusting rod; 13. Precision positioning hole; 2. Height adjusting outrigger; 21. Mechanical lifting jack; 22. Ball joint; 23. Support base plate; 3. Integral support frame; 31. Transverse support plate; 312. U-shaped positioning groove; 32. Support column; 33. Guide positioning pin; 34. Rotary support seat I; 4. Linkage rotating rod; 5. Wind-receiving deflector blade; 6. Positioning block I; 61. U-shaped bayonet; 62. Anti-detachment limiting block; 7. Positioning block II; 71. Assembly groove; 8. Transverse 9. Reinforcing rib; 10. Circular restraint rib; 11. Self-locking mechanism; 101. Eccentric locking wheel; 102. Rotating shaft I; 103. Support bearing seat; 104. Rotating shaft II; 105. Transmission gear; 106. Guide sliding sleeve; 107. Rotating support seat II; 108. Transmission rack; 109. Traction cable I; 110. Guide sliding strip; 111. Connecting strip; 112. Return torsion spring; 113. Connecting disc I; 114. Traction cable II; 115. Connecting disc II; 116. Connecting shaft; 117. Fastening bolt; 118. Threaded hole. Detailed Implementation

[0021] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0023] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0024] Example 1 like Figures 1-7 As shown, a π-shaped pier cap beam reinforcement integral fabrication jig is mainly used in complex construction environments such as mountainous canyons to realize the integral binding and fabrication of π-shaped pier cap beam reinforcement. It solves the problems of poor adaptability, weak wind resistance and insufficient positioning accuracy of traditional jigs. Its overall structure can be flexibly adjusted according to construction needs, is easy to assemble and disassemble and can be reused. The whole process adopts a pure mechanical structure design, which does not require electric drive, and is suitable for construction scenarios without power supply in the field. At the same time, it effectively reduces construction costs and improves construction efficiency and accuracy.

[0025] The foundation support 1 serves as the load-bearing foundation for the entire jig, bearing the weight of the jig itself, the weight of the steel cage, and various loads during construction.

[0026] The bottom of the foundation support 1 is provided with multiple height-adjustable legs 2. Each connecting plate 11 is symmetrically provided with height-adjustable legs 2 at its bottom to ensure that the foundation support 1 is subjected to uniform force and to avoid excessive local force that could lead to deformation.

[0027] The top of the foundation support 1 is detachably equipped with multiple integral support frames 3. The number of integral support frames 3 can be flexibly adjusted according to the length of the π-shaped pier cap beam. The integral support frames 3 are evenly distributed between adjacent integral support frames 3 to ensure uniform support for the reinforcing cage and avoid deformation of the reinforcing cage due to uneven stress. The integral support frame 3 consists of a transverse support plate 31 and two support columns 32, which are fixedly connected by welding to form a stable frame structure that can reliably support the positioning block I 6, positioning block II 7, and the reinforcing cage.

[0028] The two support columns 32 are made of high-strength channel steel, possessing excellent rigidity and torsional resistance, capable of withstanding the lateral pressure of the reinforcing cage and various external forces during construction. Their bottoms are fixed to both ends of the top of the transverse support plate 31 by welding, perpendicular to the transverse support plate 31. Double-sided welding is used at the weld joints to ensure connection strength and prevent breakage or deformation during use. Positioning blocks I6 and II7 are installed on the adjacent sides of both support columns 32. Both positioning blocks I6 and II7 are made of high-strength steel plates and are used to position and limit the annular restraint rib 9 and the transverse reinforcing rib 8. Positioning block I6 is located below positioning block II7, maintaining a reasonable distance between them, corresponding to the installation positions of the annular restraint rib 9 and the transverse reinforcing rib 8, respectively. Positioning blocks I6 and II7 are slidably fitted with the support column 32 to ensure that they can slide within the support column 32. Both positioning blocks I6 and II7 are slidably fitted through the two support columns 32 on the side where they are close to each other. Dust covers are fitted at the sliding fit between the two blocks and the support column 32 to prevent debris and dust generated during steel bar processing from entering the fit gap. The positions of positioning blocks I6 and II7 can be flexibly adjusted. When it is necessary to change the model, the entire support frame 3 can be replaced directly.

[0029] A U-shaped notch 61 is provided on one side of the positioning block I6. The opening size of the U-shaped notch 61 is adapted to the diameter of the annular restraint rib 9. Its core function is to laterally limit the annular restraint rib 9, preventing it from shifting left or right during the binding process, ensuring the accurate installation position of the annular restraint rib 9, and providing a guarantee for the accuracy of subsequent rebar binding. Anti-detachment limiting blocks 62 are welded and fixed to both sides of one end of the positioning block I6. The anti-detachment limiting blocks 62 are made of high-strength steel plates and can effectively prevent the positioning block I6 from falling out of the supporting column 32. An assembly groove 71 is provided on the top of the positioning block II7. The groove width of the assembly groove 71 is adapted to the width of the transverse reinforcing rib 8, and is used to position the transverse reinforcing ribs 8 on both sides and limit the transverse displacement of the transverse reinforcing rib 8. The top of the transverse support plate 31 is also provided with a U-shaped positioning groove 312. The opening size of the U-shaped positioning groove 312 is matched with the diameter of the transverse reinforcing bar 8 to prevent the transverse reinforcing bar 8 from shifting up and down during the binding process, ensuring the accuracy of the reinforcing bar binding and avoiding the structural performance of the π-shaped pier cap beam being affected by the displacement of the reinforcing bar.

[0030] The positioning block II 7 is equipped with a self-locking mechanism 10, which is used to clamp the transverse reinforcing rib 8 in the assembly groove 71 to prevent the transverse reinforcing rib 8 from shifting due to external forces such as strong winds, thus ensuring the stability and accuracy of the reinforcing bar binding process. Its core principle is to achieve automatic locking and unlocking of the transverse reinforcing rib 8 through mechanical transmission, without manual intervention, which is suitable for the construction needs of the strong wind environment in the canyon. The self-locking mechanism 10 includes an eccentric locking wheel 101, a rotating shaft I 102, a support bearing seat 103, a rotating shaft II 104, a guide sliding sleeve 106, a rotating support seat II 107, a connecting shaft 116, a connecting disc I 113, a connecting disc II 115, a traction cable II 114, and a return torsion spring 112. All components work together to achieve stable operation of the self-locking function. A connecting shaft 116 is rotatably mounted through the bottom of positioning block II 7. The connecting shaft 116 is made of high-strength round steel and is connected to positioning block II 7 via a bearing, ensuring smooth and unobstructed rotation. The bearing reduces friction between the connecting shaft 116 and positioning block II 7, extending the service life of the components. An eccentric locking wheel 101 is fixedly sleeved on the connecting shaft 116, located inside positioning block II 7. The eccentric locking wheel 101 employs an eccentric structure design. Utilizing the eccentricity, when the eccentric locking wheel 101 rotates, its eccentric end gradually presses against the transverse reinforcing rib 8, achieving clamping and fixing of the transverse reinforcing rib 8. The eccentric structure design increases the clamping force with the rotation angle, ensuring clamping reliability. Simultaneously, the outer wall of the eccentric locking wheel 101 undergoes special treatment to enhance wear resistance and clamping force, preventing wear from long-term use and affecting the clamping effect.

[0031] A connecting disc I113 is fixedly sleeved on the bottom outer wall of the connecting shaft 116. The rotating shaft I102 is rotatably mounted on the positioning block II7 through a bearing. A connecting disc II115 is fixedly sleeved on the bottom outer wall of the rotating shaft I102. The connecting discs I113 and II115 have the same structural dimensions and are both made of high-strength steel plates. They are used to fix and wind the traction cable II114. The traction cable II114 is made of high-strength steel wire rope, which has good tensile strength and toughness and can withstand the tension during the transmission process. One end of it is fixed to the outer wall of the connecting plate I113 and wrapped with multiple turns to ensure a firm connection and prevent the traction cable II114 from falling off. The other end is fixed to the outer wall of the connecting plate II115. The traction cable II114 realizes the transmission connection between the eccentric locking wheel 101 and the rotating shaft I102. When the rotating shaft I102 rotates, it drives the connecting plate II115 to rotate synchronously. During the rotation of the connecting plate II115, the traction cable II114 is wound or released, which in turn drives the connecting plate I113 to rotate. The connecting plate I113 drives the connecting shaft 116 to rotate, and finally drives the eccentric locking wheel 101 to rotate, realizing the clamping and loosening of the transverse reinforcing rib 8. A reset torsion spring 112 is sleeved on the outer wall of the connecting shaft 116. The reset torsion spring 112 is a suitable cylindrical torsion spring with good elastic recovery capability. Its two ends are welded and fixed to the bottom of the positioning block II 7 and the outer wall of the connecting shaft 116, respectively. At the same time, a limiting boss is fixedly set at the bottom of the positioning block II 7. The limiting boss is correspondingly set to the connecting plate I 113 to limit the reversal angle of the connecting shaft 116, assisting the reset torsion spring to achieve accurate reset, avoiding the reset deviation of the eccentric locking wheel due to the failure of the reset torsion spring, and improving the reliability of the reset structure. When the rotating shaft I 102 stops rotating and there is no external force, the elastic recovery force of the reset torsion spring 112 can drive the connecting shaft 116 to rotate in the opposite direction, thereby driving the eccentric locking wheel 101 to reset, loosening the clamp on the transverse reinforcing rib 8, facilitating the disassembly and adjustment of the reinforcing bar, realizing the automatic reset function of "loosening without wind", without manual operation, and improving construction efficiency.

[0032] The support bearing housing 103 is bolted to the outside of the overall support frame 3, specifically to the outer wall of the support column 32. Made of cast iron, the support bearing housing 103 possesses excellent rigidity and support performance. It houses a bearing to support the rotating shaft II 104, ensuring smooth rotation, reducing friction during rotation, and extending the service life of components. The rotating shaft II 104, rotatably mounted on the top of the support bearing housing 103, is made of high-strength round steel, providing sufficient rigidity and torsional resistance. Its cooperation with the bearing inside the support bearing housing 103 ensures smooth, unimpeded rotation and stable power transmission. The outer walls of rotating shaft II 104 and rotating shaft I 102 are slidably fitted with the same guide sliding sleeve 106. The guide sliding sleeve 106 is made of seamless steel pipe, and its inner wall is splined with the outer wall of rotating shaft II 104 and rotating shaft I 102. The advantage of the spline fit is that it can realize the synchronous rotation of the two shafts, ensuring the stable transmission of power, and also allows the guide sliding sleeve 106 to slide along the axial direction of rotating shaft II 104 and rotating shaft I 102, thereby realizing the connection and disconnection of the transmission. When the guide sliding sleeve 106 is simultaneously fitted on rotating shaft II 104 and rotating shaft I 102, the two shafts are connected in transmission, and power can be transmitted from rotating shaft II 104 to rotating shaft I 102. When the guide sliding sleeve 106 is disengaged from rotating shaft I 102, the transmission connection is broken, and rotating shaft I 102 can rotate freely, which is convenient for adjusting the positioning block, and at the same time can position the positioning block II 7 to prevent movement during use.

[0033] Multiple positioning blocks I6 and II7 on the same side are welded and fixed to the outer ends with the same connecting strip 111. The connecting strip 111 is made of high-strength flat steel, has sufficient rigidity, and its length is consistent with the distribution length of the positioning blocks on the same side. The connecting strip 111 enables the synchronous movement of multiple positioning blocks I6 and II7, ensuring that the position adjustment of all positioning blocks is consistent, avoiding the decrease in the positioning accuracy of the rebar due to the adjustment deviation of a single positioning block, and improving the uniformity and accuracy of rebar positioning. At the same time, the connecting strip 111 also enhances the overall stability of the positioning blocks and prevents the positioning blocks from deforming or shifting. A guide sliding strip 110 is slidably provided on one side of the supporting column 32. The guide sliding strip 110 is made of high-strength flat steel and is connected to the supporting column 32 through a slide rail. The slide rail ensures that the guide sliding strip 110 slides smoothly without jamming, making it easy for operators to push the guide sliding strip 110 up and down. A dustproof sealing gasket is provided at the sliding connection. The rotary support seat II 107 is rotatably sleeved on the outer wall of the guide sliding sleeve 106. The two are connected by a bearing to ensure that the rotary support seat II 107 can rotate smoothly around the guide sliding sleeve 106 without affecting the rotation of the guide sliding sleeve 106. A rectangular opening corresponding to the rotary support seat II 107 is opened on one side of the support column 32. The size of the rectangular opening is adapted to the rotary support seat II 107. The other end of the rotary support seat II 107 passes through the rectangular opening and is welded and fixed to the guide sliding strip 110. The two are firmly connected and can move synchronously. When the guide slide bar 110 is pushed up and down, it can drive the rotating support seat II 107 and the guide slide sleeve 106 to move up and down together, thereby realizing the connection and disconnection of the transmission between the rotating shaft II 104 and the rotating shaft I 102. When the guide slide sleeve 106 is simultaneously sleeved on the rotating shaft II 104 and the rotating shaft I 102, the two are connected in a transmission manner and can transmit power. When the guide slide sleeve 106 moves upward and disengages from the rotating shaft I 102, the transmission connection between the two is disconnected. At this time, the positions of the positioning block II 7 and the positioning block I 6 can be freely positioned. After the adjustment is completed, the guide slide bar 110 is pushed down so that the guide slide sleeve 106 is sleeved on the rotating shaft II 104 and the rotating shaft I 102 again, thereby fixing the position of the positioning block and ensuring that the positioning block II 7 and the positioning block I 6 do not shift during use.

[0034] A drive assembly is installed on the side integral support frame 3 to drive the rotating shaft I 102 to rotate using wind power, thereby driving the eccentric locking wheel 101 to achieve self-locking of the transverse reinforcing rib 8. Its core principle is to convert wind energy into mechanical power, achieving automatic locking without electric drive, adapting to the strong wind environment of the canyon, while saving energy and improving the convenience and safety of construction. The drive assembly includes a transmission rack 108, a transmission gear 105, a rotating support seat I 34, a linkage rotating rod 4, a wind-receiving deflection blade 5, and a traction cable I 109. All components work together to realize the conversion and transmission of wind energy into mechanical power. The transmission rack 108 is slidably mounted on the top of the support bearing seat 103. The transmission rack 108 adopts a straight tooth rack structure, and it is connected to the support bearing seat 103 through a slide rail. The slide rail adopts the same slide rail structure as the guide sliding bar 110, ensuring that the transmission rack 108 slides smoothly without jamming and can move stably. The transmission gear 105 is fixedly mounted on the top of the rotating shaft II 104 and is fixed by a key connection, which is firm and can drive the rotating shaft II 104 to rotate synchronously. The transmission gear 105 meshes with the transmission rack 108. Its transmission principle is: when the transmission rack 108 moves, it drives the transmission gear 105 that meshes with it to rotate, and the transmission gear 105 drives the rotating shaft II 104 to rotate, thereby converting linear motion into rotational motion and realizing the transmission of power.

[0035] The rotating support seat I34 is fixed to one side of the support column 32 by welding, located above the support bearing seat 103. The rotating support seat I34 is made of cast iron, possessing good rigidity and support performance. It contains bearings to support the linkage rotating rod 4, ensuring smooth rotation, reducing friction during rotation, and extending the service life of components. The linkage rotating rod 4 is rotatably mounted within the rotating support seat I34, made of high-strength round steel, possessing sufficient rigidity and torsional resistance to withstand the impact of wind. Multiple wind-receiving deflecting blades 5 are welded to its top. These blades are made of high-strength steel plates, rectangular in shape, and evenly distributed at the top of the linkage rotating rod 4. Adjacent wind-receiving deflecting blades 5 maintain a reasonable angle to ensure uniform wind distribution. When strong gusts occur in the canyon, the wind force acts on the wind-receiving deflecting blades 5, generating driving force that drives the linkage rotating rod 4 to rotate rapidly, converting wind energy into mechanical power to provide a power source for subsequent transmission.

[0036] Adjacent transmission racks 108 and side transmission racks 108 are all connected to the linkage rotating rod 4 via traction cables I 109. Traction cables I 109 are made of high-strength steel wire rope, possessing good tensile strength and toughness, capable of withstanding the tension from strong winds, preventing breakage, and ensuring the stability of power transmission. One end of the traction cable I 109 is welded and fixed to the corresponding transmission rack 108, ensuring a secure connection and preventing detachment. Threaded holes 118 are provided on one end of the transmission rack 108 and the outer wall of the linkage rotating rod 4. Fastening bolts 117 are threaded into the threaded holes 118, securing the other end of the traction cable I 109. The other end of the traction cable I 109 is fixed to the rotating support II 107 via the fastening bolts 117. This connection method facilitates the assembly and disassembly of the traction cable I 109. When the linkage rotating rod 4 rotates under the action of wind, it will retract the traction cable I 109. The traction cable I 109 pulls the transmission rack 108 on one side to move, thereby driving the entire transmission system to operate and realizing the self-locking of the transverse reinforcing rib 8. The exterior of the support bearing seat 103 and precision transmission components such as the transmission rack 108 and transmission gear 105 are all covered with a detachable flexible dust cover (not shown). The dust cover is made of wear-resistant canvas or rubber material, with only holes reserved for the traction cable I 109 to pass through, to prevent sand and dust from entering the transmission pair and to ensure the reliability and durability of the mechanism under long-term use.

[0037] Example 2 Reference Figures 1-7 This invention provides a new technical solution: a prefabrication frame for the integral fabrication of reinforcing bars for π-shaped pier cap beams. The foundation support 1 is composed of two connecting plates 11 spliced ​​together. Both connecting plates 11 are made of high-strength steel plates and can meet the load-bearing requirements of the entire frame. Multiple adjusting rods 12 are welded and fixed to one side of one of the connecting plates 11. The adjusting rods 12 are made of high-strength steel and have sufficient rigidity and deformation resistance. They are evenly distributed between adjacent adjusting rods 12. The bottom of the other connecting plate 11 has corresponding sliding holes for the adjusting rods 12. The adjusting rods 12 slide smoothly through the sliding holes, with a clearance fit between them to ensure the adjusting rods 12 can move. By pushing the two connecting plates 11 to slide relative to each other, the overall width of the foundation support 1 can be flexibly adjusted to accommodate the fabrication of π-shaped pier cap beam reinforcement of different sizes. After adjustment, it can be locked in place with bolts to prevent relative sliding between the two connecting plates 11 during use, ensuring the overall stability of the foundation support 1. The setting of the adjusting rod 12 breaks the limitations of the traditional fixed-size foundation, realizes the flexible adjustment of the width of the foundation support seat 1, improves the versatility of the jig, and at the same time, the splicing structure also facilitates the disassembly, assembly and transportation of the jig.

[0038] The transverse support plate 31 is made of high-strength steel plate, possessing sufficient rigidity. Multiple guide positioning pins 33, made of high-strength round steel, are welded and fixed to its bottom, providing excellent positioning performance. These guide positioning pins 33 are evenly distributed between adjacent pairs. The top of the connecting plate 11 has corresponding precision positioning holes 13 that mate with the guide positioning pins 33. The guide positioning pins 33 are inserted into these holes with a transition fit, enabling rapid positioning and installation of the overall support frame 3 and the foundation support 1, improving installation efficiency. This also further limits the positioning of the two connecting plates 11, preventing relative displacement and ensuring the overall accuracy of the foundation support 1. The detachable connection method also facilitates the disassembly and transportation of the jig. When relocation is required, the overall support frame 3 and the foundation support 1 can be separated and transported separately, reducing transportation difficulty and adapting to the transportation needs of narrow mountain roads.

[0039] The height-adjustable outrigger 2 mainly consists of a mechanical lifting jack 21, a ball joint 22, and a support base plate 23. These three components work together to achieve rapid leveling and stable support of the frame on uneven terrain in mountainous areas. The mechanical lifting jack 21 is a suitable screw-type mechanical jack, characterized by its simple structure, high load-bearing capacity, and lack of electrical drive. It allows for fine-tuning of the height. Its output end is fixedly connected to the bottom of the connecting plate 11 by welding. The welding joint uses a reinforced welding process to ensure connection strength and prevent detachment during use. The bottom is fixed to the ball joint 22 by bolts, ensuring reliable connection and easy assembly / disassembly. The ball joint 22 is a universal ball joint, allowing rotation at any angle, adapting to the contact requirements of uneven terrain in mountainous areas. When the ground is tilted, the ball joint 22 can drive the support base plate 23 to rotate with the ground slope, ensuring that the support base plate 23 remains tightly in contact with the ground and preventing any suspension. The support base plate 23 is made of high-strength steel plate. Its top has a groove that matches the ball head at the bottom of the ball joint 22. The ball head of the ball joint 22 is embedded in the groove and secured with bolts to prevent relative displacement between the ball joint 22 and the support base plate 23. The bottom of the support base plate 23 also has anti-slip textures to increase friction with the ground, preventing the jig from sliding due to external forces during use and further improving its stability. During use, the height of each adjustable leg 2 can be finely adjusted by rotating the adjusting handle of the mechanical lifting jack 21. Combined with the rotation of the ball joint 22, all support base plates 23 are tightly fitted to the ground, ensuring the foundation support 1 is level. This eliminates the need for pouring a level concrete floor or laying heavy steel plates, significantly reducing the initial civil engineering costs for construction in mountainous areas. It also avoids the problem of traditional jigs easily tilting and becoming unstable on uneven ground.

[0040] During long-term use, this jig needs to be lubricated regularly at all sliding joints (positioning blocks and support columns, guide sliding strips and support columns, etc.), and the dust covers and sealing rings should be inspected and replaced promptly if damaged. The elasticity of the return torsion spring, the tension of the traction cable, and the tightness of the connections of each component should be checked regularly, and maintenance and adjustment should be carried out in a timely manner to ensure the long-term stable operation of the jig.

[0041] In actual use, the specific working process of this jig is as follows: After transporting the various components of the jig to the mountainous construction site, firstly, the foundation support 1 is spliced ​​together, and the two connecting plates 11 are pushed to slide relative to each other. The width of the foundation support 1 is adjusted to match the size of the π-shaped pier cap beam. After adjustment, it is locked and fixed with bolts. Then, the height adjustment legs 2 are fixed to the bottom of the connecting plates 11. According to the flatness of the ground, the adjustment handle of the mechanical lifting jack 21 is rotated to finely adjust the height of each height adjustment leg 2. Combined with the rotation of the ball joint universal joint 22, all support base plates 23 are tightly attached to the ground to ensure that the foundation support 1 is in a horizontal state. Then, the guide positioning pins 3 at the bottom of the overall support frame 3 are... 3. Insert the guide slide bar 11 into the precise positioning hole 13 at the top of the connecting plate 11 to achieve the positioning and installation of the overall support frame 3 and the foundation support seat 1. Install the corresponding number of overall support frames 3 according to the length of the π-shaped pier cap beam. Then push the guide slide bar 110 upward to move the guide slide sleeve 106 upward to a safe distance. Adjust the position of the positioning block I 6 and the positioning block II 7 so that the U-shaped bayonet 61 is aligned with the installation position of the annular constraint rib 9, and the assembly groove 71 and the U-shaped positioning groove 312 are aligned with the installation position of the transverse reinforcing rib 8. After the adjustment is completed, push the guide slide bar 110 downward so that the guide slide sleeve 106 is fitted onto the rotating shaft II 104 and the rotating shaft I 102 to fix the positioning. The positions of block I6 and positioning block II7 are determined; then the annular restraint rib 9 is placed into the U-shaped bayonet 61, and the anti-detachment limiting block 62 limits the annular restraint rib 9 to prevent it from coming out. The transverse reinforcing rib 8 is placed into the assembly groove 71 and the U-shaped positioning groove 312 to complete the initial positioning of the reinforcing bar; the workers carry out the binding operation of the reinforcing bar. During the binding process, if a strong gust of wind is encountered in the canyon, the wind force acts on the wind-receiving deflector blade 5, driving the linkage rotating rod 4 to rotate. During the rotation of the linkage rotating rod 4, the traction cable I109 is wound up. The traction cable I109 pulls the transmission rack 108 on one side to move. The movement of the transmission rack 108 drives the transmission gear 105 to rotate. The transmission gear 105 drives the rotating shaft II1. 04. Rotation: Rotating shaft II 104 drives rotating shaft I 102 to rotate via guide sliding sleeve 106. Rotating shaft I 102 drives connecting shaft 116 to rotate via connecting plate II 115, traction cable II 114, and connecting plate I 113, which in turn drives eccentric locking wheel 101 to rotate. The eccentric end of eccentric locking wheel 101 gradually presses against the transverse reinforcing rib 8, tightly clamping the transverse reinforcing rib 8 in the assembly groove 71. The stronger the wind, the faster the rotation speed of the linkage rotating rod 4, the greater the tension of the traction cable I 109, and the stronger the clamping force of eccentric locking wheel 101 on the transverse reinforcing rib 8, which is sufficient to resist the displacement force brought by strong wind, prevent the reinforcing bar from sliding or twisting, and ensure the accuracy of reinforcing bar binding.When the wind stops, the elastic restoring force of the reset torsion spring 112 drives the connecting shaft 116 to rotate in the opposite direction, which in turn drives the eccentric locking wheel 101 to reset, loosening the clamp on the transverse reinforcing rib 8. At the same time, the wind-driven deflector blade 5 stops rotating under its own weight and air resistance, the traction cable I 109 loosens, and the transmission rack 108 resets under its own weight. The entire mechanism returns to its initial state, and workers can continue to tie the reinforcing bars. After the reinforcing bars are tied, the guide sliding bar 110 is pushed to move upward, disconnecting the transmission connection between the rotating shaft II 104 and the rotating shaft I 102. Then, the tied reinforcing cage is lifted out as a whole by hoisting equipment. When lifting out, the reinforcing bars are first lifted to a certain height so that the transverse reinforcing rib 8 is disengaged from the positioning block II 7. The positions of the positioning blocks I 6 and II 7 are adjusted to ensure that the reinforcing cage moves upward as a whole. Then, it is lifted upward to complete the overall fabrication of the reinforcing bars. Finally, the various parts of the jig are disassembled and transported to the next construction site for repeated use.

[0042] Through the above-mentioned structural design, this jig achieves the following effects: the ball joint universal joint 22 of the height-adjustable outrigger 2, in conjunction with the mechanical lifting jack 21, can quickly adapt to uneven terrain in mountainous areas, eliminating the need for pouring a level ground, reducing construction costs, while ensuring the overall level of the jig and improving the positioning accuracy of the rebar; the drive component and self-locking mechanism 10 work together to achieve self-locking of the rebar using wind power, eliminating the need for electric drive, adapting to the canyon field construction environment, and effectively preventing rebar displacement caused by strong winds, ensuring construction safety and accuracy; the setting of the adjusting rod 12 and the guide positioning pin 33 allows the jig to be adapted to the fabrication of π-shaped pier cap beam rebar of different sizes, with strong versatility; all structures adopt a purely mechanical structure, with low processing difficulty, simple assembly, convenient disassembly and assembly, and reusability, further reducing construction costs; the cooperation of positioning block I 6, positioning block II 7, and U-shaped positioning groove 312 realizes multi-directional positioning of the rebar, ensuring the rebar binding accuracy and meeting the construction requirements of π-shaped pier cap beam.

[0043] The installation method of the integral fabrication frame for the reinforcing steel bars of this π-shaped pier cap beam is as follows: The first step is the installation of the foundation support 1: transport the two connecting plates 11 to the designated location on the construction site, align the adjusting rod 12 on one side of one connecting plate 11 with the sliding hole at the bottom of the other connecting plate 11, insert the adjusting rod 12 into the sliding hole, push the two connecting plates 11 to slide relative to each other, adjust the overall width of the foundation support 1 to fit the size of the π-shaped pier cap beam, and after adjustment, complete the splicing and installation of the foundation support 1.

[0044] The second step is the installation of the height-adjustable outriggers 2: The output end of the mechanical lifting jack 21 is fixed to the bottom of the connecting plate 11 by welding. After welding, the ball joint 22 is fixed to the bottom of the mechanical lifting jack 21 by bolts. Then, the support base plate 23 is fixed to the bottom ball head of the ball joint 22 by bolts, ensuring that the bottom ball head of the ball joint 22 is fully embedded in the groove at the top of the support base plate 23. The height-adjustable outriggers 2 are symmetrically installed at the bottom of each connecting plate 11. After installation, the adjustment handle of the mechanical lifting jack 21 is rotated to finely adjust the height of the height-adjustable outriggers 2. Combined with the rotation of the ball joint 22, all support base plates 23 are tightly attached to the ground, ensuring that the foundation support 1 is in a horizontal state.

[0045] The third step is the installation of the overall support frame 3: The transverse support plate 31 and the two support columns 32 are fixed together by welding to form the overall support frame 3. After welding, the guide positioning pin 33 at the bottom of the transverse support plate 31 is aligned with the precision positioning hole 13 at the top of the connecting plate 11. The guide positioning pin 33 is inserted into the precision positioning hole 13 to achieve the positioning and installation of the overall support frame 3 and the foundation support seat 1. According to the length of the π-shaped pier cap beam, multiple overall support frames 3 are evenly installed on the top of the foundation support seat 1. After installation, the verticality and stability of the overall support frame 3 are checked to ensure that there is no looseness or tilting.

[0046] Step 4, Installation of Positioning Block I6 and Positioning Block II7: Positioning Block I6 and Positioning Block II7 are respectively installed through the two supporting columns 32 on the side close to each other, ensuring that Positioning Block I6 is below Positioning Block II7 and that there is a reasonable distance between them. Adjust the height of Positioning Block I6 and Positioning Block II7 to a position that matches the specifications of the reinforcing bars. Then, fix the connecting strip 111 to the outer ends of multiple Positioning Blocks I6 and Positioning Block II7 on the same side by welding to ensure that multiple positioning blocks can move synchronously. Weld and fix the anti-detachment limiting block 62 on both sides of one end of Positioning Block I6 to complete the installation of Positioning Block I6 and Positioning Block II7.

[0047] Step 5, Installation of the self-locking mechanism 10: Install the bearing at the bottom of the positioning block II 7, and place the connecting shaft 116 through the bearing inside the positioning block II 7. Fix the eccentric locking wheel 101 onto the connecting shaft 116, located inside the positioning block II 7. Fix the connecting disc I 113 onto the outer wall of the bottom end of the connecting shaft 116, and fix the connecting disc II 115 onto the outer wall of the bottom end of the rotating shaft I 102. Fix one end of the traction cable II 114 to the outer wall of the connecting disc I 113 and wrap it around multiple times, and fix the other end to the outer wall of the connecting disc II 115. Fit the return torsion spring 112 onto the outer wall of the connecting shaft 116, and attach the two ends of the return torsion spring 112 to the bottom of the positioning block II 7 and the connecting shaft II 116 respectively. 6. The outer wall of the support bearing seat 103 is fixed by welding; the support bearing seat 103 is fixed to the outer wall of the support column 32 by bolts, the bearing is installed in the support bearing seat 103, the rotating shaft II 104 is installed through the bearing and set at the top of the support bearing seat 103, the guide sliding sleeve 106 is slidably sleeved on the outer wall of the rotating shaft II 104 and the rotating shaft I 102, and the rotating support seat II 107 is rotatably sleeved on the outer wall of the guide sliding sleeve 106 through the bearing; the guide sliding strip 110 is slidably set on one side of the support column 32 through the slide rail, and the other end of the rotating support seat II 107 is inserted through the rectangular opening on the support column 32 and welded and fixed to the guide sliding strip 110, thus completing the installation of the self-locking mechanism 10.

[0048] Step 6, Installation of the drive assembly: The transmission rack 108 is slidably mounted on the top of the support bearing seat 103 via a slide rail. The transmission gear 105 is fixed to the top of the rotating shaft II 104 via a key connection, ensuring that the transmission gear 105 meshes with the transmission rack 108. The rotating support seat I 34 is fixed to one side of the support column 32 by welding, located above the support bearing seat 103. The bearing is installed inside the rotating support seat I 34, and the linkage rotating rod 4 passes through the bearing and is installed in the rotating support seat I 34. Inside, multiple wind-receiving deflecting blades 5 are welded and fixed to the top of the linkage rotating rod 4; one end of the traction cable I 109 is welded and fixed to the transmission rack 108, and a threaded hole 118 is opened at one end of the transmission rack 108 and the outer wall of the linkage rotating rod 4. The fastening bolt 117 is threaded into the threaded hole 118, and the other end of the traction cable I 109 is fixed to the rotating support seat II 107 by the fastening bolt 117. The tension of the traction cable I 109 is adjusted to ensure smooth power transmission and complete the installation of the drive assembly.

[0049] Step 7, Installation Inspection: After installation, conduct a comprehensive inspection of all components of the jig. Check whether the connections of components such as connecting plate 11, height adjustment legs 2, and overall support frame 3 are secure. Check whether the positions of positioning blocks I 6 and II 7 are accurate. Check whether the operation of the self-locking mechanism 10 and drive assembly is smooth. Check whether the markings of all components are complete and clear. Ensure that the jig is not loose, not stuck, and not deviated, and meets the requirements for construction and use. The installation of the entire jig is now complete.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A prefabrication frame for the integral fabrication of reinforcing bars for a π-shaped pier cap beam, characterized in that, include: Foundation support (1); Multiple height-adjustable outriggers (2) are assembled at the bottom of the base support (1) to adapt to uneven ground in mountainous areas and to achieve horizontal leveling of the base support (1); Multiple integral support frames (3) are detachably assembled on the top of the base support seat (1). The integral support frame (3) includes a transverse support plate (31) and two support columns (32) fixed to the top of the transverse support plate (31). Positioning block I (6) and positioning block II (7) are both slidably assembled on the side of the two supporting columns (32) that are close to each other. Positioning block I (6) has a U-shaped slot (61) for limiting the ring constraint rib (9), and positioning block II (7) has an assembly groove (71) for positioning the transverse reinforcing rib (8). The self-locking mechanism (10) is located in the positioning block II (7) and includes an eccentric locking wheel (101) and a rotating shaft I (102). The two are connected by transmission and the eccentric locking wheel (101) is driven to rotate through the rotating shaft I (102) to clamp the transverse reinforcing rib (8) in the assembly groove (71). The drive assembly is located on the side integral support frame (3) and uses wind power to drive the rotating shaft I (102) to rotate, thereby achieving automatic locking of the transverse reinforcing rib (8).

2. The integral fabrication frame for the reinforcing bars of a π-shaped pier cap beam according to claim 1 is characterized in that, The foundation support (1) includes two connecting plates (11). One of the connecting plates (11) has multiple adjusting rods (12) fixed on one side. The multiple adjusting rods (12) are slidably assembled on the bottom of the other connecting plate (11). By adjusting the rods (12) and the connecting plate (11) slidingly engaging, the overall width of the foundation support (1) can be adjusted to accommodate the fabrication of π-shaped pier cap beam reinforcement of different sizes.

3. The integral fabrication frame for the reinforcing bars of a π-shaped pier cap beam according to claim 1, characterized in that, The height-adjustable outrigger (2) includes multiple mechanical lifting jacks (21). The output end of the mechanical lifting jack (21) is fixedly connected to the bottom of the connecting plate (11). A ball joint (22) is fixedly mounted on the bottom of the mechanical lifting jack (21). A support base plate (23) is embedded on the ball head at the bottom of the ball joint (22). The ball joint (22) can rotate at any angle. With the height fine adjustment of the mechanical lifting jack (21), the support base plate (23) is tightly attached to the uneven ground.

4. The integral fabrication frame for the reinforcing bars of a π-shaped pier cap beam according to claim 3, characterized in that, The bottom of the transverse support plate (31) is fixed with multiple guide positioning pins (33), and the top of the connecting plate (11) is provided with a precision positioning hole (13) that matches the guide positioning pin (33). The guide positioning pin (33) is inserted into the precision positioning hole (13) to achieve precise positioning of the overall support frame (3) and the foundation support seat (1), and at the same time, it plays a limiting role for the two connecting plates (11).

5. The integral fabrication frame for the reinforcing bars of a π-shaped pier cap beam according to claim 4, characterized in that, The self-locking mechanism (10) also includes a support bearing seat (103) fixed to the outside of the overall support frame (3). The top of the support bearing seat (103) is rotatably fitted with a rotating shaft II (104). The outer walls of the rotating shaft II (104) and the rotating shaft I (102) are slidably fitted with the same guide sliding sleeve (106). By sliding the guide sliding sleeve (106), the transmission connection and disconnection between the rotating shaft II (104) and the rotating shaft I (102) can be realized.

6. The integral fabrication frame for the reinforcing bars of a π-shaped pier cap beam according to claim 5, characterized in that, The self-locking mechanism (10) also includes a guide slide bar (110) and a rotating support seat II (107). The guide slide bar (110) is slidably assembled on one side of the support column (32). The rotating support seat II (107) is rotatably sleeved on the outer wall of the guide slide sleeve (106) and is fixedly connected to the guide slide bar (110) through the rectangular opening on the support column (32). Pushing the guide slide bar (110) to move up and down can drive the rotating support seat II (107) to be inserted and separated from the rotating shaft I (102), thereby fixing the positions of the positioning block II (7) and the positioning block I (6).

7. The integral fabrication frame for the reinforcing bars of a π-shaped pier cap beam according to claim 6, characterized in that, The drive assembly includes a transmission rack (108) slidably mounted on the top of the support bearing seat (103), a transmission gear (105) meshing with the transmission rack (108) fixedly mounted on the top of the rotating shaft II (104), a rotating support seat I (34) fixedly mounted on one side of the support column (32), a linkage rotating rod (4) rotatably mounted inside the rotating support seat I (34), and a plurality of wind-receiving deflection blades (5) fixedly mounted at the top of the linkage rotating rod (4). The wind blows the wind-receiving deflection blades (5) to drive the linkage rotating rod (4) to rotate, and then drives the rotating shaft I (102) to rotate through the meshing of the transmission rack (108) and the transmission gear (105).

8. The integral fabrication frame for the reinforcing bars of a π-shaped pier cap beam according to claim 7, characterized in that, The two adjacent transmission racks (108) and the side transmission rack (108) are all connected to the linkage rotating rod (4) by traction cable I (109). One end of the traction cable I (109) is fixedly connected to the transmission rack (108), and the other end is fixed to the rotating support seat II (107) by fastening bolt (117). One end of the transmission rack (108) and the outer wall of the linkage rotating rod (4) are provided with threaded holes (118) that are compatible with the fastening bolt (117).

9. The integral fabrication frame for the reinforcing bars of a π-shaped pier cap beam according to claim 8, characterized in that, The bottom of the positioning block II (7) is rotatably fitted with a connecting shaft (116). The eccentric locking wheel (101) is fixedly sleeved on the connecting shaft (116). The bottom outer wall of the connecting shaft (116) is fixedly sleeved with a connecting disc I (113). The bottom outer wall of the rotating shaft I (102) is fixedly sleeved with a connecting disc II (115). The connecting disc I (113) and the connecting disc II (115) are connected by a traction cable II (114). The outer wall of the connecting shaft (116) is sleeved with a reset torsion spring (112). The two ends of the reset torsion spring (112) are fixedly connected to the bottom of the positioning block II (7) and the outer wall of the connecting shaft (116) respectively, and are used to drive the eccentric locking wheel (101) to reset.

10. A method for installing a prefabricated frame for the integral fabrication of reinforcing bars for a π-shaped pier cap beam, characterized in that, The integral fabrication frame for the reinforcing bars of the π-shaped pier cap beam according to any one of claims 1 to 9 includes the following steps: S1. Join the two connecting plates (11) to form a base support (1), adjust the relative position of the adjusting rod (12) and the connecting plate (11), and tighten the bolts to fix it; S2. Assemble the height-adjustable outrigger (2) at the bottom of the connecting plate (11), finely adjust the height of the mechanical lifting jack (21), and cooperate with the ball joint (22) to make the support base plate (23) fit the ground and ensure that the foundation support seat (1) is horizontal. S3. Assemble the entire support frame (3) on the top of the base support (1) by matching the guide positioning pin (33) with the precision positioning hole (13), fix it and check its stability; S4. Assemble positioning block I (6) and positioning block II (7) on the support column (32), fix the connecting strip (111) and the anti-detachment limiting block (62), and adjust the position of the positioning block; S5. Assemble the self-locking mechanism (10), assemble each component in sequence to ensure that the guide sliding sleeve (106) slides smoothly and the reset torsion spring (112) is firmly assembled. S6. Assemble the drive assembly so that the transmission rack (108) meshes with the transmission gear (105), fix the traction cable I (109) and adjust the tension; S7. Conduct a comprehensive inspection of the connections and operating status of all components to ensure that the jig is not loose or stuck and meets the requirements for construction and use.

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