A hoisting precast tied beam positioning support device and a method of use

Abstract

The application discloses a hoisting prefabricated contact beam positioning and supporting device and a using method. The device comprises a clamping device, a triangular supporting frame, a transverse positioning device and a longitudinal positioning device. The clamping device of the device can provide stable clamping on common square and parallelogram columns with a common length-width ratio; the transverse positioning device and the longitudinal positioning device can assist in completing transverse positioning and longitudinal positioning during the hoisting process of a wood formwork, and can adjust the beam bottom height, and are suitable for various construction conditions; and the rotatable triangular supporting frame system can provide support for orthogonal and skew beams. The application can quickly and conveniently complete clamping installation on various high-altitude column shapes, and can subsequently hoist and position prefabricated contact beams with various skew angles in the transverse and longitudinal directions, and can provide support for the prefabricated contact beams and the wood formwork in the node connection concrete pouring stage, so that the construction progress is accelerated, the hoisting and positioning difficulty in construction is reduced, and finally the wood formwork is convenient to remove.

Description

Technical Field

[0001] This invention belongs to the field of building construction and installation technology, specifically relating to a positioning support device for hoisting precast connecting beams and its usage method. Background Technology

[0002] Precast concrete offers advantages such as high-quality construction, rapid construction, and energy efficiency. Precast concrete structures are assembled or cast on-site from precast components, thus requiring reliable connections between these components. Connecting beams are structural members that interact and share forces between independent columns, playing a crucial role in controlling overall structural slippage, settlement, and energy dissipation.

[0003] In prefabricated construction, the relative positional accuracy of precast columns and precast beams is very high. In the actual assembly construction process, since the hoisting of precast columns and precast beams is generally carried out at high altitudes with the help of cranes, it is a major challenge to control the relative position of precast columns and precast beams within the required accuracy. Once the hoisting positioning deviation is large, it may cause problems such as the inability to weld the reinforcing bars smoothly and the assembly not being firm, requiring repeated hoisting and repositioning of the hoisting equipment, which slows down the construction progress. In addition, since the joint of the assembled beam and column needs to be poured with concrete and wait for hardening, it is necessary to fix the precast connecting beam and its external wooden formwork for a long time. How to use the scaffolding system as little as possible and fix the support on the surface of the precast column at high altitudes simply and reliably is also a major challenge in construction design. After the joint concrete hardens, there is also the problem of difficulty in removing the formwork under the support condition. At present, the precast beams and support devices used at home and abroad mainly have the following problems: (1) the support and auxiliary positioning functions are separated, and usually only one of the functions is available; (2) they can usually only meet the positioning of orthogonal beams, but not the positioning of oblique beams; (3) they cannot simultaneously meet the auxiliary positioning in both the transverse and longitudinal directions. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a hoisting positioning and support device for precast connecting beams. This invention enables quick and convenient clamping and installation on various shaped columns at high altitudes, and facilitates the subsequent hoisting and positioning of precast connecting beams at various oblique angles in the horizontal and vertical directions. It provides support for the precast connecting beams and wooden formwork during the concrete pouring stage of the node connection, accelerating the construction progress while reducing the difficulty of hoisting and positioning during construction. Finally, it also facilitates the removal of wooden formwork and can be reused.

[0005] The objective of this invention is achieved through the following technical solution: a positioning and support device for hoisting prefabricated connecting beams, the device comprising a positioning and support device and a wooden positioning template;

[0006] The positioning and support device includes a clamping device, a triangular support frame, a lateral positioning device, a cross fixing rod, and a longitudinal positioning device.

[0007] The clamping device is divided into two layers, each of which is fixed to the column by a clamping push plate; the two ends of the triangular support frame are slidably connected to the two layers of clamping devices through the triangular support frame nodes; the triangular support frame nodes are equipped with a rotating shaft to allow the triangular support frame to swing horizontally.

[0008] The triangular support frame is equipped with a lateral positioning device via a sliding groove. The lateral positioning device is connected to a cross fixing rod via a rotating shaft. The longitudinal positioning device is slidably connected to two cross fixing rods via two parallel sliding grooves and is equipped with a locking knob for fixing the cross fixing rods and the longitudinal fixing device. The longitudinal positioning device is also provided with a longitudinal positioning groove.

[0009] The wooden positioning template includes a wooden template and a longitudinal positioning block. The longitudinal positioning block is fixed below the wooden template. During hoisting, the longitudinal positioning block is inserted into the longitudinal positioning groove to achieve longitudinal positioning of the precast connecting beam.

[0010] Furthermore, each layer of the clamping device includes four opposing clamping outer beams, with adjacent clamping outer beams connected to each other through clamping outer beam nodes, to enable the clamping device to adapt to the shape of the column; the inner side of the clamping outer beam is also equipped with a rubber friction pad through a tightening knob, so that the rubber friction pad makes full contact with the column to generate vertical friction force, thereby achieving overall support of the positioning and support device.

[0011] Furthermore, the clamping outer beam node includes an upper connecting node, a lower connecting node, an outer beam node shaft, a first node push plate, and a second node push plate; the upper connecting node and the lower connecting node are connected by the outer beam node shaft to adjust the angle between the upper and lower clamping outer beams; the upper connecting node and the interior are fitted with a first node push plate via a set knob, and the lower connecting node and the interior are fitted with a second node push plate via a set knob. When the set knob is not tightened, the clamping outer beam node can adjust its fixed position, and when the set knob is tightened, the position of the clamping outer beam is fixed.

[0012] Furthermore, one end of the triangular support frame node is a sliding groove for sliding connection on the clamping device, and a locking knob is also installed to fix the position of the triangular support frame node, while the other end is equipped with a rotating shaft for rotating connection with the triangular support frame.

[0013] Furthermore, the lateral positioning device includes a lateral positioning plate, an upper bearing plate, cross support rods, a height adjustment positioning rod, a positioning slot, a lower bearing plate, a bearing plate slide groove, and cross fixing rod nodes;

[0014] A circular plate is provided below the transverse positioning plate, and the upper guide plate is inclined outward to guide the prefabricated connecting beam to the predetermined position.

[0015] The upper bearing plate has a waist-shaped groove on its upper surface and a waist-shaped hole in the center of the waist-shaped groove. The circular plate below the transverse positioning plate is embedded in the waist-shaped groove, and the round rod at the bottom passes through the waist-shaped hole and is limited by the round baffle, so that the transverse positioning plate can slide on the upper bearing plate, so that the transverse positioning plate can meet the positioning of prefabricated connecting beams of different widths.

[0016] The upper bearing plate and the lower bearing plate are each fixed with four positioning slots. Multiple interconnected oblong slots are formed in the positioning slots, so that the height adjustment positioning rods fixed in the cross support rods are fixed in the oblong slots at different positions, thereby changing the height of the upper bearing plate and thus changing the bottom positioning elevation of the precast connecting beam. A cross fixing rod node is fixed below the upper bearing plate and is connected to the cross fixing rod by a rotating shaft. A bearing plate slide groove is fixed below the lower bearing plate for sliding connection with the triangular support frame.

[0017] Furthermore, a locking knob is installed on the circular plate and the slide groove of the bearing plate below the transverse positioning plate, which can be tightened to fix the transverse positioning plate and the transverse positioning device.

[0018] Furthermore, the longitudinal positioning device includes a longitudinal positioning groove and a longitudinal positioning groove support plate, and two parallel sliding grooves that are slidably connected to two cross fixing rods are provided on the longitudinal positioning groove support plate; the longitudinal positioning groove is a rotatable circular groove on the longitudinal positioning groove support plate, and a trapezoidal hole is provided inside for connecting with the longitudinal positioning block.

[0019] According to another aspect of the specification, a method for using a precast connecting beam positioning and support device is provided, the method including installation and dismantling steps.

[0020] The installation steps include: before hoisting, according to the design positions of the prefabricated connecting beams and columns in the drawings, the positions and angles of each component on the positioning and support device are fixed on the ground using various locking knobs. Then, the positioning and support device is hoisted to the air and clamped and fixed on the column. Furthermore, the prefabricated connecting beams are fixed to the wooden positioning template on the ground according to the design requirements. Then, the prefabricated connecting beams are quickly positioned in the air using horizontal and vertical positioning devices.

[0021] The dismantling process includes: adjusting the position of the horizontal positioning plate and the height of the upper bearing plate at height to separate the positioning and support devices from the wooden formwork, facilitating the dismantling of the positioning and support devices, and finally dismantling the wooden formwork.

[0022] Furthermore, in the installation step, by tightening the locking knob on the inner side of the clamping outer beam, the clamping push plate is rotated and pushed towards the column to tighten, and the rubber friction pad makes full contact with the column to generate vertical friction force, thus completing the clamping and fixing on the column.

[0023] The beneficial effects of this invention are: the clamping device can provide stable clamping on square and parallelogram columns with common aspect ratios; the lateral positioning device and the longitudinal positioning device can simultaneously assist in lateral and longitudinal positioning during the hoisting of wooden formwork, and the beam bottom height can be adjusted, making it suitable for various construction conditions; the rotatable triangular support frame system can provide support for orthogonal and oblique beams; the lateral and longitudinal positioning devices can simultaneously satisfy auxiliary positioning in both lateral and longitudinal directions; and during the dismantling stage, the device and wooden formwork can be easily dismantled by adjusting the position of the lateral positioning plate and the height of the upper bearing plate. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a three-dimensional schematic diagram of the positioning and support device structure of the present invention;

[0026] Figure 3 This is a three-dimensional schematic diagram of the clamping device of the present invention;

[0027] Figure 4 This is a detailed enlarged view of the triangular support frame node of the present invention;

[0028] Figure 5 This is a detailed enlarged view of the external beam connection node of the present invention;

[0029] Figure 6 This is a cross-sectional view of part A of the present invention;

[0030] Figure 7 This is a top-view perspective view and a detailed enlarged view of the lateral positioning device of the present invention;

[0031] Figure 8 This is a bottom-view perspective view of the lateral positioning device of the present invention;

[0032] Figure 9 This is a three-dimensional schematic diagram of the longitudinal positioning device of the present invention;

[0033] Figure 10 This is a detailed enlarged view of the wooden positioning template of the present invention.

[0034] In the diagram: 1 is the positioning and support device; 2 is the wooden positioning template; 3 is the precast connecting beam; 4 is the column; 11 is the clamping device; 12 is the triangular support frame; 13 is the transverse positioning device; 14 is the cross fixing rod; 15 is the longitudinal positioning device; 111 is the first clamping outer beam; 112 is the triangular support frame node; 113 is the first tightening knob; 114 is the second tightening knob; 115 is the clamping push plate; 116 is the rubber friction pad; 117 is the outer beam connection node; 118 is the second clamping outer beam; 119 is the upper connection node of the outer beam; 120 is the lower connection node of the outer beam; 121 is the outer beam node axis; 122 is the third tightening knob; 123 is the fourth tightening knob; 12 4 is the first node push plate; 125 is the second node push plate; 126 is the guide hole for clamping the outer beam; 127 is the guide hole for clamping the push plate; 131 is the transverse positioning plate; 132 is the fifth locking knob; 133 is the upper bearing plate; 134 is the cross support rod; 135 is the height adjustment positioning rod; 136 is the positioning slot; 137 is the lower bearing plate; 138 is the bearing plate slide groove; 139 is the cross fixing rod node; 140 is the sixth locking knob; 151 is the longitudinal positioning groove; 152 is the longitudinal positioning groove support plate; 153 is the seventh locking knob; 154 is the longitudinal positioning plate slide groove; 155 is the eighth locking knob; 201 is the wooden template; 202 is the longitudinal positioning block. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0036] like Figure 1 and Figure 2 As shown, the present invention provides a positioning and support device for hoisting prefabricated connecting beams. The positioning and support device 1 includes five parts: a clamping device 11, a triangular support frame 12, a transverse positioning device 13, a cross fixing rod 14, and a longitudinal positioning device 15. The clamping device 11 is fixed to the column 4 by a clamping push plate 115. The triangular support frame 12 is slidably connected to the clamping device 11 by a triangular support frame node 112. The transverse positioning device 13 is slidably connected to the triangular support frame 12 by a bearing plate groove 138 and is fixed to the triangular support frame 12 by a sixth locking knob 140, so as to realize positioning and support under different prefabricated connecting beam lengths and oblique angles. The cross fixing rod 14 is connected to the transverse positioning device 13 by a rotating shaft. The longitudinal positioning device 15 is slidably connected to the cross fixing rod 14 by a longitudinal positioning plate groove 154 and is fixed to the cross fixing rod 14 by an eighth locking knob 155.

[0037] like Figure 3 and Figure 4As shown, the clamping device 11 includes a first clamping outer beam 111, a triangular support frame node 112, a first locking knob 113, a second locking knob 114, a clamping push plate 115, a rubber friction pad 116, an outer beam connecting node 117, and a second clamping outer beam 118. The triangular support frame node 112 is slidably connected to the first clamping outer beam 111 or the second clamping outer beam 118, and is fixed to the first clamping outer beam 111 or the second clamping outer beam 118 by the first locking knob 113, thereby achieving positioning and support under different prefabricated connecting beam 3 beam width conditions. Figure 6 As shown, the second locking knob 114 is threadedly connected to the clamping outer beam connecting guide hole 126 on the side wall of the first clamping outer beam 111 or the second clamping outer beam 118. The outer wall of the clamping outer beam connecting guide hole 126 is in close contact with the clamping push plate connecting guide hole 127 and is slidably connected. The rotation of the second locking knob 114 pushes the clamping push plate 115 to move towards the column 4 and tighten it. The rubber friction pad 116 fully contacts the column 4 to generate vertical friction force, thereby realizing the overall support of the positioning and support device 1.

[0038] like Figure 5 As shown, the outer beam connection node 117 includes an upper outer beam connection node 119, a lower outer beam connection node 120, an outer beam node shaft 121, a third locking knob 122, a fourth locking knob 123, a first node push plate 124, and a second node push plate 125. The first outer beam clamping outer beam 111 is clamped and fixed to the upper outer beam connection node 119 and the first node push plate 124 via the third locking knob 122. The second outer beam clamping outer beam 118 is connected to the lower outer beam connection node 120 via the fourth locking knob 123. The outer beam is clamped and fixed by the second node push plate 125. The outer beam first clamping outer beam 111 and outer beam second clamping outer beam 118 can respectively adjust the fixed position of the upper connecting node 119 and the lower connecting node 120 on the outer beam, realizing the adaptation of the clamping device to column shapes with common length-to-width ratios. The upper connecting node 119 and the lower connecting node 120 of the outer beam are connected by the outer beam node shaft 121, and can be rotated at any angle in the horizontal direction, realizing the adaptation of the clamping device to column shapes such as rectangles and parallelograms.

[0039] like Figure 2 As shown, the triangular support frame 12 and the triangular support frame node 112 are rotatably connected by a rotating shaft, so that the triangular support frame 12 can provide support for the prefabricated connecting beam 3 with orthogonal and common oblique angles.

[0040] like Figure 7 and Figure 8As shown, the lateral positioning device 13 includes a lateral positioning plate 131, a fifth locking knob 132, an upper bearing plate 133, a cross support rod 134, a height adjustment positioning rod 135, a positioning slot 136, a lower bearing plate 137, a bearing plate slide groove 138, a cross fixing rod node 139, and a sixth locking knob 140. The guide plate above the lateral positioning plate 131 is inclined outward, so that the prefabricated connecting beam 3 can reach the predetermined position more conveniently and quickly in the lateral direction under the guidance of the guide plate during hoisting. The upper surface of the upper bearing plate 133 has an oblong groove, and an oblong hole is opened in the center of the oblong groove. The circular plate below the lateral positioning plate 131 is embedded in the oblong groove, and the circular rod at the bottom passes through the oblong hole and is limited by the circular baffle, so that the lateral positioning plate 131 slides on the upper bearing plate 133, so that the lateral positioning plate 131... It can meet the positioning of precast connecting beams 3 of different widths; the fifth locking knob 132 passes through the threaded hole in the circular plate below the transverse positioning plate 131 and can fix the rotation angle of the transverse positioning plate 131; the lower part of the upper bearing plate 133 and the upper part of the lower bearing plate 137 are respectively fixed with four positioning slots 136, and multiple connected waist-shaped hole slots are opened in the positioning slots 136. The height adjustment positioning rod 135 fixed in the cross support rod 134 can be fixed in the waist-shaped hole slots at different positions to realize the height change of the upper bearing plate 133, thereby changing the beam bottom positioning elevation of the precast connecting beam 3; a cross fixing rod node 139 is fixed below the upper bearing plate, which is connected to the cross fixing rod 14 by a rotating shaft. The cross fixing rod 14 can rotate within the cross fixing rod node; a bearing plate slide groove 138 is fixed below the lower bearing plate.

[0041] like Figure 9 As shown, the longitudinal positioning device 15 includes a longitudinal positioning groove 151, a longitudinal positioning groove support plate 152, and a seventh locking knob 153. The longitudinal positioning groove 151 is located in a circular groove on the upper surface of the longitudinal positioning groove support plate 152 and can rotate freely in the groove. The seventh locking knob 153 passes through a threaded hole on the side wall of the longitudinal positioning groove support plate 152 and contacts the longitudinal positioning groove 151, fixing the longitudinal positioning groove 151 in the tightened state.

[0042] Furthermore, the cross-fixing rod 14 is obliquely intersecting the triangular support frame 12, so that when the eighth locking knob 155 is fixed, the structure formed by the triangular support frame 12 and the cross-fixing rod 14 is a stable structure in the lateral direction and does not rotate freely.

[0043] like Figure 10 As shown, the wooden positioning template 2 includes a wooden template 201 and a longitudinal positioning block 202. The longitudinal positioning block 202 is fixed below the wooden template 201. During hoisting, the longitudinal positioning block 202 is inserted into the trapezoidal hole opened inside the longitudinal positioning groove 151, thereby realizing the longitudinal positioning of the prefabricated connecting beam 3.

[0044] like Figure 1As shown, before hoisting, the positions and angles of each component on the positioning and support device 1 need to be fixed on the ground according to the design positions of the prefabricated connecting beam 3 and column 4 in the drawings using each locking knob. Then, the positioning and support device 1 is hoisted to the air and clamped and fixed on the column 4. Furthermore, the prefabricated connecting beam 3 is fixed to the wooden positioning template 2 on the ground according to the design requirements. Then, the prefabricated connecting beam 3 is quickly positioned in the air using the horizontal positioning device 13 and the longitudinal positioning device 15.

[0045] Furthermore, during the later dismantling of the wooden formwork 201, the position of the horizontal positioning plate 131 and the height of the upper bearing plate 133 are adjusted at high altitude to separate the positioning and support device 1 from the wooden formwork 201, making it easier to dismantle the positioning and support device 1. Finally, the wooden formwork 201 is dismantled.

[0046] Corresponding to the hoisting precast connecting beam positioning support device, this embodiment also provides a method for using the hoisting precast connecting beam positioning support device, specifically including:

[0047] Before hoisting, the positions of the prefabricated connecting beams 3 and 4 on the ground, according to the design positions in the drawings, need to be fixed on the ground using various locking knobs, and the positions and angles of each component on the support device 1 need to be adjusted. Specifically, the first clamping outer beam 111 and the second clamping outer beam 118 can be adjusted to fix the upper connecting node 119 and the lower connecting node 120 on the outer beam, respectively, so that the clamping device can adapt to the shape of rectangular or parallelogram columns with common aspect ratios; the triangular support frame node 112 is slidably connected to the first clamping outer beam 111 or the second clamping outer beam 118, and the relative position of the triangular support frame node 112 is adjusted to the first clamping outer beam 111 and the second clamping outer beam 118, and fixed to the first clamping outer beam 111 or the second clamping outer beam 118 by the first locking knob 113, so as to achieve positioning under different beam widths of the prefabricated connecting beam 3; the lateral adjustment The position of the positioning plate 131 on the bearing plate 133 allows the transverse positioning plate 131 to meet the positioning of prefabricated connecting beams 3 of different widths; the rotation angle of the transverse positioning plate 131 is adjusted and fixed by the fifth locking knob 132; the longitudinal positioning device 15 is slidably connected to the cross fixing rod 14 through the longitudinal positioning plate slide groove 154, the relative position of the longitudinal positioning device 15 is adjusted, and it is fixed to the cross fixing rod 14 by the eighth locking knob 155; the longitudinal positioning groove 151 is located in the circular groove on the upper surface of the longitudinal positioning groove support plate 152, and can rotate freely in the groove, and the angle of the longitudinal positioning groove 151 on the positioning groove support plate 152 is adjusted by the seventh locking knob 153.

[0048] The positioning and support device 1 is then hoisted to a high altitude. The upper connecting node 119 and the lower connecting node 120 of the outer beam are connected by the outer beam node shaft 121, allowing for horizontal rotation at any angle, thus enabling the clamping device to adapt to rectangular and parallelogram-shaped columns. The second locking knob 114 is threadedly connected to the clamping outer beam connecting guide hole 126 on the side wall of the first clamping outer beam 111 or the second clamping outer beam 118. The outer wall of the clamping outer beam connecting guide hole 126 is in close contact with the clamping push plate connecting guide hole 127 and is slidably connected. Rotating the second locking knob 114 pushes the clamping push plate 115 to move towards the column 4 and tighten it. The rubber friction pad 116 makes full contact with the column 4 to generate vertical friction force, thus completing the clamping and fixing on the column 4.

[0049] On the ground, the prefabricated connecting beam 3 is fixed to the wooden positioning template 2 according to the design requirements. The guide plate above the transverse positioning plate 131 is tilted outward, so that the prefabricated connecting beam 3 can reach the predetermined position more conveniently and quickly in the transverse direction under the guidance of the guide plate during hoisting. During hoisting, the longitudinal positioning block 202 is inserted into the trapezoidal hole opened inside the longitudinal positioning slot 151 to achieve longitudinal positioning of the prefabricated connecting beam 3. At high altitude, the transverse positioning device 13 and the longitudinal positioning device 15 are used to simultaneously perform longitudinal and transverse rapid positioning of the prefabricated connecting beam 3.

[0050] During the later dismantling of the wooden formwork 201, the position of the horizontal positioning plate 131 and the height of the upper bearing plate 133 are adjusted at high altitude to separate the positioning and support device 1 from the wooden formwork 201, making it easier to dismantle the positioning and support device 1. Finally, the wooden formwork 201 is dismantled.

[0051] The above embodiments are used to explain and illustrate the present invention, but not to limit the present invention. Any modifications and changes made to the present invention within the spirit and scope of the claims shall fall within the protection scope of the present invention.

Claims

1. A device for positioning and supporting prefabricated connecting beams during hoisting, characterized in that, The device includes a positioning and support system and a wooden positioning template; The positioning and support device includes a clamping device, a triangular support frame, a lateral positioning device, a cross fixing rod, and a longitudinal positioning device. The clamping device is divided into two layers, each of which is fixed to the column by a clamping push plate; the two ends of the triangular support frame are slidably connected to the two layers of clamping devices through the triangular support frame nodes; the triangular support frame nodes are equipped with a rotating shaft to allow the triangular support frame to swing horizontally. The triangular support frame is equipped with a lateral positioning device via a sliding groove. The lateral positioning device is connected to a cross fixing rod via a rotating shaft. The longitudinal positioning device is slidably connected to two cross fixing rods via two parallel sliding grooves and is equipped with a locking knob for fixing the cross fixing rods and the longitudinal fixing device. The longitudinal positioning device is also provided with a longitudinal positioning groove. The lateral positioning device includes a lateral positioning plate, an upper bearing plate, cross support rods, a height adjustment positioning rod, a positioning slot, a lower bearing plate, a bearing plate slide groove, and cross fixing rod nodes; A circular plate is provided below the transverse positioning plate, and the upper guide plate is inclined outward to guide the prefabricated connecting beam to the predetermined position. The upper bearing plate has a waist-shaped groove on its upper surface and a waist-shaped hole in the center of the waist-shaped groove. The circular plate below the transverse positioning plate is embedded in the waist-shaped groove, and the round rod at the bottom passes through the waist-shaped hole and is limited by the round baffle, so as to realize the sliding of the transverse positioning plate on the upper bearing plate, so that the transverse positioning plate can meet the positioning of prefabricated connecting beams of different widths. The upper bearing plate and the lower bearing plate are respectively fixed with four positioning slots. Multiple connected waist-shaped hole slots are opened in the positioning slots, so that the height adjustment positioning rods fixed in the cross support rods are fixed in the waist-shaped hole slots at different positions, thereby changing the height of the upper bearing plate and thus changing the bottom positioning elevation of the precast connecting beam. A cross fixing rod node is fixed below the upper bearing plate, which is connected to the cross fixing rod by a rotating shaft. A bearing plate groove is fixed below the lower bearing plate for sliding connection with the triangular support frame; The longitudinal positioning device includes a longitudinal positioning groove and a longitudinal positioning groove support plate. Two parallel sliding grooves that are slidably connected to two cross fixing rods are provided on the longitudinal positioning groove support plate. The longitudinal positioning groove is a rotatable circular groove on the longitudinal positioning groove support plate, with a trapezoidal hole inside for connecting with the longitudinal positioning block. The wooden positioning template includes a wooden template and a longitudinal positioning block. The longitudinal positioning block is fixed below the wooden template. During hoisting, the longitudinal positioning block is inserted into the longitudinal positioning groove to achieve longitudinal positioning of the precast connecting beam.

2. The hoisting prefabricated connecting beam positioning and support device according to claim 1, characterized in that, Each layer of the clamping device includes four opposing clamping beams. Adjacent clamping beams are connected to each other through clamping beam nodes to adapt the clamping device to the shape of the column. Rubber friction pads are also installed on the inner side of the clamping beams through a tightening knob, so that the rubber friction pads can fully contact the column to generate vertical friction force, thereby achieving overall support for the positioning and support device.

3. The hoisting prefabricated connecting beam positioning and support device according to claim 2, characterized in that, The clamping outer beam node includes an upper connecting node, a lower connecting node, an outer beam node shaft, a first node push plate, and a second node push plate. The upper connecting node and the lower connecting node are connected by the outer beam node shaft to adjust the angle between the upper and lower clamping outer beams. The upper connecting node and the interior of the outer beam are fitted with a first node push plate via a set knob, and the lower connecting node and the interior of the outer beam are fitted with a second node push plate via a set knob. When the set knob is not tightened, the clamping outer beam node can adjust its fixed position, and when the set knob is tightened, the position of the clamping outer beam is fixed.

4. The hoisting positioning and support device for prefabricated connecting beams according to claim 1, characterized in that, One end of the triangular support frame node is a sliding groove for sliding connection on the clamping device, and a locking knob is also installed to fix the position of the triangular support frame node. The other end is equipped with a rotating shaft for rotating connection with the triangular support frame.

5. The hoisting positioning and support device for prefabricated connecting beams according to claim 1, characterized in that, Both the circular plate below the transverse positioning plate and the slide groove of the bearing plate are equipped with locking knobs, which can be tightened to fix the transverse positioning plate and the transverse positioning device.

6. A method of using the apparatus according to any one of claims 1-5, characterized in that, The method includes installation and removal steps. The installation steps include: before hoisting, according to the design positions of the prefabricated connecting beams and columns in the drawings, the positions and angles of each component on the positioning and support device are fixed on the ground using various locking knobs. Then, the positioning and support device is hoisted to the air and clamped and fixed on the column. Furthermore, the prefabricated connecting beams are fixed to the wooden positioning template on the ground according to the design requirements. Then, the prefabricated connecting beams are quickly positioned in the air using horizontal and vertical positioning devices. The dismantling process includes: adjusting the position of the horizontal positioning plate and the height of the upper bearing plate at height to separate the positioning and support devices from the wooden formwork, facilitating the dismantling of the positioning and support devices, and finally dismantling the wooden formwork.

7. The method according to claim 6, characterized in that, In the installation process, by tightening the locking knob on the inner side of the clamping outer beam, the clamping push plate is moved towards the column and pressed tightly. The rubber friction pad makes full contact with the column to generate vertical friction force, thus completing the clamping and fixing on the column.

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