Prefabricated wall lifting and positioning device and construction method

Abstract

The invention provides a prefabricated wall lifting and positioning device and a construction method. The prefabricated wall lifting and positioning device comprises a lifting assembly, a positioning assembly and a circular track. The circular track is installed on the ground in the length direction of the wall face of the prefabricated wall. The lifting assembly comprises a sliding frame and a lifting mechanism, the lower end of the sliding frame is slidably mounted on the circular track in a matched mode, so that the sliding frame can slide in the length direction of the wall face along with mounting of the prefabricated wall, and the sliding frame is temporarily fixed to a building structure body in the lifting and mounting process of the prefabricated wall unit; the lifting mechanism is mounted in the sliding frame, and the prefabricated wall unit is arranged in the sliding frame through the lifting mechanism and can be lifted to a mounting floor; the positioning assembly is arranged in the sliding frame, and the embedded steel bars are arranged on the installation floor through the positioning assembly, so that the prefabricated wall unit can be horizontally moved into the installation floor through the positioning assembly and is correspondingly connected with the embedded steel bars. The invention relates to the technical field of prefabricated building assembly, and can solve the technical problems in the prior art.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building assembly technology, and in particular to a prefabricated wall lifting and positioning device and construction method. Background Technology

[0002] In prefabricated building construction, precast walls are often connected to the main building structure using pre-embedded steel bars in the cast-in-place structure. This requires high installation precision. Current technology primarily relies on vertical transportation machinery such as tower cranes and truck cranes, with steel wire ropes suspended from hooks and lifting equipment, to hoist the precast walls. This presents the following technical problems:

[0003] 1. Because wire ropes are prone to swaying during hoisting, hoisting accuracy is low; at the same time, the precast wall must be manually uprighted during installation and positioning, resulting in a large workload of high-altitude operations, a wide range of control required for hoisting construction, and a large self-weight of the precast wall, which places high demands on the technical skills of construction personnel.

[0004] 2. The work floors are mostly located on structures under construction, making it difficult to set up safety protection measures. The installation of precast walls at the edges of the floors takes a long time and poses a high safety risk.

[0005] 3. The prefabrication accuracy of existing prefabricated walls and the pre-embedded steel bars will also affect the accuracy of the installation and positioning of the prefabricated walls.

[0006] Therefore, there is a need to provide a precast wall lifting and positioning device and construction method that can solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this invention is to provide a precast wall lifting and positioning device and construction method, which can solve the above-mentioned technical problems.

[0008] To achieve the above objectives, the technical solution of the present invention is as follows:

[0009] A precast wall lifting and positioning device includes: a lifting component, a positioning component, and a ring rail; the ring rail is installed on the ground along the length of the precast wall surface; the lifting component includes a sliding frame and a lifting mechanism, the lower end of the sliding frame is slidably matched and installed on the ring rail, so that the sliding frame can slide along the length of the wall surface as the precast wall is installed, and the sliding frame is temporarily fixed to the main building structure during the lifting and installation of the precast wall unit; the lifting mechanism is installed inside the sliding frame, and the precast wall unit is set inside the sliding frame through the lifting mechanism and can be lifted to the installation floor; the positioning component is set inside the sliding frame, and the pre-embedded steel bars are set on the installation floor through the positioning component, so that the precast wall unit can be translated to the installation floor through the positioning component and connected to the pre-embedded steel bars accordingly.

[0010] The sliding frame includes a base section, a standard section, a top section, and a crossbeam. The top of both the base section and the standard section has a locking mechanism. The lower end of the standard section can be inserted into the locking mechanism of the base section, and the lower end of the next standard section can be inserted into the locking mechanism of the next standard section. The lower end of the top section can be inserted into the locking mechanism of either the standard section or the base section, thus connecting the base section and the top section to form a sliding frame unit, or connecting the base section, at least one standard section, and the top section to form a sliding frame unit. A pair of sliding frame units are symmetrically arranged, and the tops of the pair are connected by the crossbeam to form an integrated sliding frame structure.

[0011] The bottom of the frame base section is provided with a track groove that matches the ring rail, so that the lower end of the frame base section can be slidably installed on the ring rail.

[0012] The height of the frame foundation section, the frame standard section, and the frame top section is consistent with the floor height; the top side of the frame standard section and the frame foundation section forms a floor installation part, making the frame standard section and the frame foundation section have an inverted L-shaped structure; the floor installation part overlaps with the floor slab of the corresponding floor of the main building structure and is temporarily fixed by floor connectors; the frame foundation section, the frame standard section, and the frame top section are temporarily fixed to the floor slab of the corresponding floor of the main building structure by diagonal bracing, so that the frame foundation section, the frame standard section, and the frame top section are set to fit the exterior facade of the main building structure.

[0013] The inner sides of the foundation section, standard section, and top section of the frame are formed with lifting sliding grooves along the height direction. The lifting sliding grooves penetrate the upper and lower ends of the foundation section, standard section, and top section, as well as the end facing the interior side of the main building structure. A lifting mechanism is installed in the lifting sliding groove, which lifts the precast wall unit to the installation floor between a pair of sliding frame units. The inner side of the floor installation part is formed with an installation sliding groove along the width direction. The installation sliding groove penetrates the end of the floor installation part facing the exterior side of the main building structure and communicates with the lifting sliding groove. A positioning component is set in the lifting sliding groove and the installation sliding groove, which allows the precast wall unit to be moved horizontally along the installation sliding groove to the installation floor and connected to the pre-embedded steel bars.

[0014] The top section of the frame is provided with a limiting plate at one end facing the interior side of the main building structure. One end of the limiting plate is flush with the inner side of the top section of the frame, and the other end of the limiting plate is bent to form an L-shaped structure.

[0015] The lifting mechanism includes a transmission drive component and a transmission chain; a pair of transmission drive components are respectively installed on the top of the lifting sliding groove of a pair of sliding frame units, one end of a pair of transmission chains is respectively connected to the output end of a pair of transmission drive components, and the other end of a pair of transmission chains is respectively connected to the two ends of the positioning component.

[0016] The positioning assembly includes a support plate and a jacking component; the precast wall unit is placed on the support plate, and the other ends of a pair of transmission chains are respectively connected to the two sides of the support plate, so that the precast wall unit can be vertically lifted along the lifting sliding groove by the transmission drive component via the transmission chain; a pair of jacking components are respectively installed on the two sides of the support plate, and the jacking end of the jacking component can support the inner wall of the lifting sliding groove, so that the precast wall unit can slide along the support plate into the installation sliding groove and move horizontally along the installation sliding groove into the installation floor;

[0017] The positioning component also includes a lead wire hole, which is formed on the floor mounting part. A lead wire is pulled between the lead wire holes of the floor mounting parts at the same height of a pair of sliding frame units, and the pre-embedded steel bars are located on the lead wire.

[0018] The ring track includes track units, connectors, and connecting pieces. The two ends of the connecting pieces are connected to the ends of two adjacent track units through the connectors, so that several pairs of track units can be connected in sequence to form a ring track arranged along the length of the precast wall surface. The track units have track guides that match the track grooves, so that the lower end of the frame foundation section can slide along the track guides through the track grooves.

[0019] A construction method for a precast wall lifting and positioning device includes the following steps:

[0020] Step 1: Install the ring rail along the length of the precast wall;

[0021] Step 2: Assemble the sliding frame according to the number of floors of the main building structure. The sliding frame slides along the ring track to the installation position of the prefabricated wall unit and is temporarily fixed to the main building structure.

[0022] Step 3: Install the lifting mechanism and positioning components inside the sliding frame;

[0023] Step 4: At the installation floor of the main building structure, the position of the embedded steel bars is corrected using positioning components;

[0024] Step 5: Place the prefabricated wall unit on the positioning component, and lift the prefabricated wall unit to the installation floor from the outside of the main building structure using the lifting mechanism;

[0025] Step 6: Push the prefabricated wall unit horizontally into the installation floor of the main building structure using the positioning components;

[0026] Step 7: Install PE strips on site according to the edge line of the positioning device, and push the precast wall unit horizontally to the design position through the positioning component. After the position of the precast wall unit is determined, lower it so that the precast wall unit is installed in place by the pre-embedded steel bars.

[0027] Step 8: Disconnect the temporary connection between the sliding frame and the main building structure, and slide the sliding frame along the circular track to the installation position of the next precast wall unit;

[0028] Step 9: Repeat steps 5 through 8 until all prefabricated wall units are positioned and installed.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] 1. This invention, with its lifting and positioning components, allows prefabricated wall units to be lifted upwards along the lifting sliding groove within the sliding frame on the outside of the main building structure via a lifting mechanism. The lifting process is stable and controllable, preventing swaying. After being lifted to the installation floor, the positioning component moves the prefabricated wall units horizontally into the installation floor and connects them to the pre-embedded reinforcing bars. This mechanizes the installation of prefabricated wall units, eliminating the need for manual straightening and greatly reducing the amount of work that installers do at the building edges. In cases where edge protection is inadequate, it significantly reduces the risk of working at heights, ensures the accuracy of the positioning and installation of prefabricated wall units, and requires less technical skill from construction workers, making the entire construction process safer and more efficient.

[0031] 2. Because the present invention is equipped with a positioning component, it can support the prefabricated wall unit through the support plate, ensuring that the prefabricated wall unit is stably lifted to the installation floor. At the same time, the position of the pre-embedded steel bars is corrected by the guide line, reducing the impact of the error of the pre-embedded steel bars on the installation accuracy of the prefabricated wall unit. It also pushes and moves the prefabricated wall unit to the designed position within the installation floor, which facilitates the quick and accurate positioning of the prefabricated wall unit and ensures the positioning and installation accuracy of the prefabricated wall unit. Attached Figure Description

[0032] The above and other objects, features and advantages of this disclosure will become more apparent from the accompanying drawings, in which like reference numerals generally denote like parts.

[0033] Figure 1 This is a construction schematic diagram of a precast wall lifting and positioning device according to the present invention;

[0034] Figure 2 This is a structural schematic diagram of the frame foundation section in a precast wall lifting and positioning device of the present invention;

[0035] Figure 3 This is a structural schematic diagram of a standard section of the frame in a precast wall lifting and positioning device of the present invention;

[0036] Figure 4 This is a schematic diagram showing the connection between the frame foundation section and the frame standard section in a precast wall lifting and positioning device of the present invention;

[0037] Figure 5yes Figure 4 Side view;

[0038] Figure 6 This is a partial enlarged view of a precast wall lifting and positioning device according to the present invention;

[0039] Figure 7 yes Figure 6 Cross-sectional view at point A;

[0040] Figure 8 yes Figure 6 Cross-sectional view at point B;

[0041] Figure 9 This is a temporary fixing diagram of a prefabricated wall lifting and positioning device according to the present invention;

[0042] Figure 10 This is a structural schematic diagram of the positioning component in a precast wall lifting and positioning device of the present invention (before jacking and translation);

[0043] Figure 11 yes Figure 10 A top view of

[0044] Figure 12 This is a schematic diagram of the positioning component in a precast wall lifting and positioning device of the present invention (after jacking and translation);

[0045] Figure 13 yes Figure 12 A top view of

[0046] Figure 14 This is a partial structural diagram of the ring track in a precast wall lifting and positioning device of the present invention;

[0047] Figure 15 This is a schematic diagram of the track unit in a prefabricated wall lifting and positioning device of the present invention.

[0048] In the diagram, 1-1 is the frame beam, 1-2 is the transmission drive component, 1-3 is the transmission chain, 1-4 is the limiting plate, 1-5 is the floor installation part, 1-6 is the floor connector, 1-7 is the diagonal brace, 1-8 is the frame foundation section, 1-9 is the frame standard section, 1-10 is the frame top section, 1-11 is the track groove, 1-12 is the bayonet, 1-13 is the lifting sliding groove, 2-1 is the installation sliding groove, 2-2 is the lead wire hole, 2-3 is the support plate, 2-4 is the jacking component, 2-5 is the lead wire, 3-1 is the track unit, 3-2 is the connector, 3-3 is the connecting piece, 3-4 is the track guide part, 4 is the precast wall unit, 5 is the main building structure, 6 is the embedded steel bar, and 7 is the PE strip. Detailed Implementation

[0049] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the precast wall lifting and positioning device and construction method proposed in this invention. The advantages and features of this invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this invention.

[0050] Please see the appendix Figure 1 Appendix Figure 6 and attached Figure 9 A precast wall lifting and positioning device includes a lifting component, a positioning component, and a ring rail. The ring rail is installed on the ground along the length of the precast wall. The lifting component includes a sliding frame and a lifting mechanism. The lower end of the sliding frame is slidably mounted on the ring rail, allowing the sliding frame to slide along the length of the wall as the precast wall is installed. During the lifting and installation of the precast wall unit 4, the sliding frame is temporarily fixed to the main building structure 5. The lifting mechanism is installed inside the sliding frame, and the precast wall unit 4 is positioned inside the sliding frame via the lifting mechanism and can be lifted to the installation floor. The positioning component is located inside the sliding frame, and the pre-embedded steel bars 6 are positioned on the installation floor via the positioning component, allowing the precast wall unit 4 to be moved horizontally to the installation floor via the positioning component and connected to the pre-embedded steel bars 6.

[0051] A circular track is laid on the ground floor along the length of the precast wall to guide and limit the horizontal movement of the sliding frame, ensuring its stability and safety. The sliding frame is positioned at the edge of the main building structure 5. A lifting mechanism is used to lift the precast wall unit 4, allowing it to rise stably along the edge of the main building structure 5 within the sliding frame. This prevents the precast wall unit 4 from swaying, eliminating the need for manual straightening. This reduces the risks, workload, construction difficulty, and technical skill requirements for construction workers, thus improving construction quality and efficiency.

[0052] The positioning component can be used to support the prefabricated wall unit 4 and move it horizontally after the prefabricated wall unit 4 is vertically lifted to the installation floor, so that the prefabricated wall unit 4 can be moved from the outdoor side of the main building structure 5 to the indoor side, thereby facilitating the precise and efficient installation of the prefabricated wall unit 4.

[0053] The embedded reinforcing bars 6 are pre-embedded in the main building structure 5, such as floor slabs, at the installation location of the precast wall unit 4. They are used to align with the reinforcing bar sleeves at the bottom of the precast wall unit 4, thereby facilitating the rapid and accurate positioning and installation of the precast wall unit 4. At the same time, the positioning components can be used to correct the position of the embedded reinforcing bars 6, thereby improving the positioning and installation accuracy of the embedded reinforcing bars 6 for the precast wall unit 4.

[0054] Please see the appendix Figure 1 To be continued Figure 6The sliding frame includes a base section 1-8, standard sections 1-9, a top section 1-10, and a crossbeam 1-1. The tops of the base section 1-8 and standard sections 1-9 each have latches 1-12. The lower end of the standard section 1-9 can be inserted into the latches 1-12 of the base section 1-8, and the lower end of the previous standard section 1-9 can be inserted into the latches 1-12 of the next standard section 1-9. The lower end of section 1-10 can be inserted into the slot 1-12 of the standard section 1-9 or the foundation section 1-8 of the frame, so that the foundation section 1-8 and the top section 1-10 of the frame are connected to form a sliding frame unit, or the foundation section 1-8, at least one standard section 1-9 of the frame and the top section 1-10 of the frame are connected to form a sliding frame unit; a pair of sliding frame units are arranged symmetrically, and the top of the pair of sliding frame units are connected by the frame crossbeam 1-1 to form a sliding frame with an integrated structure.

[0055] Preferably, the frame foundation section 1-8, frame standard section 1-9, frame top section 1-10, and frame crossbeam 1-1 can be made of rectangular steel pipes. The lengths of the frame foundation section 1-8, frame standard section 1-9, and frame top section 1-10 can be determined according to the floor height. The length of the frame crossbeam 1-1 can be determined according to the width of the prefabricated wall unit 4 to ensure that the prefabricated wall unit 4 can be lifted between a pair of sliding frame units. The frame crossbeam 1-1 can be welded or screwed between the tops of the frame top section 1-10 of a pair of sliding frame units.

[0056] The setting of the bayonet 1-12 facilitates quick insertion and installation between the foundation section 1-8 and the standard section 1-9 of the frame, between two adjacent standard sections 1-9 of the frame, and between the standard section 1-9 of the frame and the top section 1-10 of the frame. The splicing height is flexibly adjustable, thus forming a sliding frame that meets the construction height requirements.

[0057] Preferably, the U-shaped latch 1-12 is located on the outer surface of the frame base section 1-8 and the frame standard section 1-9. The thickness of the bottom of the frame standard section 1-9 and the top section 1-10 and the insertion part of the latch 1-12 is slightly less than the main body thickness of the frame standard section 1-9 and the top section 1-10, and matches the internal width of the latch 1-12, thereby facilitating the insertion of the frame base section 1-8, the frame standard section 1-9, and the top section 1-10. After insertion, the inner surfaces of the frame base section 1-8, the frame standard section 1-9, and the top section 1-10 are located in the same vertical plane.

[0058] Please see the appendix Figure 2 The bottom of the frame base section 1-8 is provided with a track groove 1-11 that matches the ring rail, so that the lower end of the frame base section 1-8 can be slidably matched and installed on the ring rail, which facilitates the flexible and stable sliding of the frame base section 1-8.

[0059] Please see the appendix Figure 1 To be continued Figure 4 Appendix Figure 6 and attached Figure 9 The heights of the frame foundation section 1-8, frame standard section 1-9, and frame top section 1-10 are consistent with the floor height. The top side of the frame standard section 1-9 and frame foundation section 1-8 forms a floor installation part 1-5, making the frame standard section 1-9 and frame foundation section 1-8 have an inverted L-shaped structure. The floor installation part 1-5 overlaps with the floor slab of the corresponding floor of the main building structure 5 and is temporarily fixed by the L-shaped floor connector 1-6. The frame foundation section 1-8, frame standard section 1-9, and frame top section 1-10 are temporarily fixed to the floor slab of the corresponding floor of the main building structure 5 by the diagonal brace 1-7, so that the frame foundation section 1-8, frame standard section 1-9, and frame top section 1-10 are set to fit against the exterior of the main building structure 5.

[0060] Preferably, the floor installation section 1-5 can be made of rectangular steel pipes of the same specifications as the frame foundation section 1-8 and the frame standard section 1-9, and the length of the floor installation section 1-5 is shorter than that of the frame foundation section 1-8 and the frame standard section 1-9. The floor installation section 1-5 can be welded or screwed onto the frame foundation section 1-8 and the frame standard section 1-9.

[0061] Floor installation parts 1-5 are placed on the floor slab of the main building structure 5 for the translation of prefabricated wall units 4 and for temporary fixed connection with the main building structure 5. The length of floor installation parts 1-5 can be adjusted according to actual usage requirements.

[0062] Preferably, one side of the L-shaped floor connector 1-6 is attached to the floor mounting part 1-5 and temporarily connected and fixed by bolts or other means. The other side of the L-shaped floor connector 1-6 is attached to the floor slab of the main building structure 5 and temporarily connected and fixed by bolts or other means. The floor connector 1-6 can be made of angle steel, and the specifications and models of the angle steel can be selected according to the actual connection requirements.

[0063] Preferably, the diagonal brace 1-7 can be made of steel pipe. One end of the diagonal brace 1-7 is connected to the main body of the frame foundation section 1-8, the frame standard section 1-9, and the frame top section 1-10. The other end of the diagonal brace 1-7 is connected to the floor slab through a PC diagonal brace embedded ring embedded in the floor slab, which is used to further ensure the reliability of the temporary connection between the frame foundation section 1-8, the frame standard section 1-9, and the frame top section 1-10 and the floor slab.

[0064] Please see the appendix Figure 7 Appendix Figure 8 Appendix Figure 11 and attached Figure 13The inner sides (with the side of a pair of sliding frame units facing each other as the inner side and the side of a pair of sliding frame units facing away from each other as the outer side) of the frame foundation section 1-8, the frame standard section 1-9, and the frame top section 1-10 are formed with lifting sliding grooves 1-13 along the height direction. The lifting sliding grooves 1-13 penetrate the upper and lower ends of the frame foundation section 1-8, the frame standard section 1-9, and the frame top section 1-10, as well as the end facing the interior side of the main building structure 5. A lifting mechanism is installed within the lifting sliding grooves 1-13, allowing the precast wall units 4 to pass through... The lifting mechanism lifts the precast wall unit to the installation floor along the lifting sliding groove 1-13 between a pair of sliding frame units; an installation sliding groove 2-1 is formed on the inner side of the floor installation part 1-5 along the width direction. The installation sliding groove 2-1 passes through the end of the floor installation part 1-5 facing the exterior of the main building structure 5 and is connected to the lifting sliding groove 1-13. The positioning component is set in the lifting sliding groove 1-13 and the installation sliding groove 2-1, so that the precast wall unit 4 is translated to the installation floor along the installation sliding groove 2-1 by the positioning component and is connected to the pre-embedded steel bar 6.

[0065] The vertically arranged lifting sliding groove 1-13 along the height direction is used to provide guidance and limit for the lifting of the precast wall unit 4, ensuring the stability, controllability and safety of the lifting of the precast wall unit 4; the horizontally arranged installation sliding groove 2-1 along the width direction is used to provide guidance and limit for the horizontal pushing of the precast wall unit 4, ensuring the stability, controllability and safety of the precast wall unit 4 during the translation process; no manual straightening is required, and safe construction can be ensured even when the edge protection of the main building structure 5 is incomplete.

[0066] Please see the appendix Figure 9 The top section 1-10 of the frame is provided with a limiting plate 1-4 at one end facing the interior side of the main building structure 5. One end of the limiting plate 1-4 is flush with the inner side of the top section 1-10 of the frame, and the other end of the limiting plate 1-4 is bent to form an L-shaped structure.

[0067] When the precast wall unit 4 is lifted to the top section 1-10 of the frame, since the top section 1-10 of the frame does not have a floor installation part 1-5 with an installation sliding groove 2-1, the setting of the limiting plate 1-4 provides limiting protection when the precast wall unit 4 moves out of the lifting sliding groove 1-13, preventing the precast wall unit 4 from tipping over into the installation floor.

[0068] Please see the appendix Figure 1 Appendix Figure 6 and attached Figure 9The lifting mechanism includes a transmission drive component 1-2 and a transmission chain 1-3; a pair of transmission drive components 1-2 are respectively installed on the top of the lifting sliding groove 1-13 of a pair of sliding frame units, one end of a pair of transmission chains 1-3 is respectively connected to the output end of a pair of transmission drive components 1-2, and the other end of a pair of transmission chains 1-3 is respectively connected to the two ends of the positioning component.

[0069] Preferably, the transmission drive component 1-2 can be an electric hoist using existing technology. Lifting objects via the transmission chain 1-3 using an electric hoist is a conventional technique in this field, and its specific structure and operation process will not be elaborated here. The specifications and models of the transmission drive component 1-2 and the transmission chain 1-3 can be adaptively selected according to actual load-bearing requirements to ensure the safe lifting of the precast wall unit 4.

[0070] During the lifting process of precast wall unit 4, a pair of transmission drive components 1-2 operate synchronously to ensure the stable lifting of precast wall unit 4 and avoid lateral tilting.

[0071] Please see the appendix Figure 1 Appendix Figure 11 and attached Figure 13 The positioning assembly includes a support plate 2-3 and a pusher 2-4. The precast wall unit 4 is placed on the support plate 2-3, and the other ends of a pair of transmission chains 1-3 are respectively connected to the two sides of the support plate 2-3, so that the precast wall unit 4 can be vertically lifted along the support plate 2-3 via the transmission drive 1-2 and the transmission chain 1-3 along the lifting sliding groove 1-13. A pair of pushers 2-4 are respectively installed on the two sides of the support plate 2-3, and the pushing end of the pusher 2-4 can support the inner wall of the lifting sliding groove 1-13, so that the precast wall unit 4 can slide along the support plate 2-3 into the installation sliding groove 2-1 and move horizontally along the installation sliding groove 2-1 into the installation floor.

[0072] Preferably, the support plate 2-3 can be made of steel plate. The width of the support plate 2-3 is slightly less than the sum of the widths of the lifting sliding groove 1-13 and the mounting sliding groove 2-1. The length of the support plate 2-3 is slightly less than the distance between the lifting sliding grooves 1-13 of a pair of sliding frame units, thereby ensuring that the support plate 2-3 can be stably lifted between a pair of lifting sliding grooves 1-13 without colliding with a pair of sliding frame units.

[0073] Meanwhile, the area of ​​the support plate 2-3 is not less than the bottom area of ​​the precast wall unit 4. The specifications and models of the steel plate of the support plate 2-3 can be selected according to the weight adaptability of the precast wall unit 4 to ensure stable support for the precast wall unit 4.

[0074] Preferably, the jacking component 2-4 can be a jack using existing technology. The jacking end can support the inner wall of the lifting sliding groove 1-13 of the sliding frame unit, and the fixed end of the jack is installed on the side surface of the support plate 2-3. The specifications and models of the jack can be adapted to actual usage requirements to ensure the stable translation of the precast wall unit 4.

[0075] When the precast wall unit 4 is pushed, a pair of pushing parts 2-4 operate synchronously, and the support plate 2-3 is subjected to uniform force to ensure that the precast wall unit 4 moves smoothly and avoids tipping over.

[0076] Please see the appendix Figure 10 and attached Figure 12 The positioning component also includes a lead wire hole 2-2, which is formed on the floor mounting part 1-5. A lead wire 2-5 is pulled between the lead wire holes 2-2 of the floor mounting parts 1-5 at the same height of a pair of sliding frame units, and the pre-embedded steel bar 6 is located on the lead wire 2-5.

[0077] Preferably, the guide hole 2-2 can be located on the centerline of the floor installation section 1-5. The width of the floor installation section 1-5 can be determined according to the distance between the embedded steel bars 6 and the outer edge of the precast wall unit 4, so as to ensure that after the guide hole 2-5 is laid, multiple embedded steel bars 6 should be located on the guide hole 2-5, thereby facilitating the correction of the position of the embedded steel bars 6. At the same time, the guide hole 2-5 can also be used to quickly and accurately position the precast wall unit 4 after it is laid out, so as to ensure the accuracy and efficiency of the subsequent positioning and installation of the precast wall unit 4.

[0078] Please see the appendix Figure 14 and attached Figure 15 The ring track includes a track unit 3-1, a connector 3-2, and a connecting piece 3-3. The two ends of the connecting piece 3-3 are respectively connected to the ends of two adjacent track units 3-1 through the connector 3-2, so that several pairs of track units 3-1 can be connected in sequence to form a ring track arranged along the length of the precast wall surface. The track unit 3-1 has a track guide part 3-4 that matches the track groove 1-11, so that the lower end of the frame foundation section 1-8 can slide along the track guide part 3-4 through the track groove 1-11.

[0079] Preferably, the track unit 3-1 can be made of steel, which has a strong load-bearing capacity; the connector 3-2 can be made of bolts; and the connecting piece 3-3 can be made of metal gaskets. The width of the track unit 3-1 is not less than the width of the sliding frame, so as to stably support the sliding frame. The specifications and models of the track unit 3-1 can be adjusted according to actual usage requirements.

[0080] Please see the appendix Figure 1 To be continued Figure 14 A construction method for a precast wall lifting and positioning device includes the following steps:

[0081] Step 1: Install the ring rail along the length of the precast wall.

[0082] Specifically, several track units 3-1 are arranged sequentially along the length of the precast wall. The ends of two adjacent track units 3-1 are connected by connecting pieces 3-3 and connectors 3-2 to form an integral ring track.

[0083] The ring track can be laid in one go, or it can be spliced ​​and laid in sections according to the actual construction progress.

[0084] Step 2: Assemble the sliding frame according to the number of floors of the main building structure 5. The sliding frame slides along the ring track to the installation position of the prefabricated wall unit 4 and is temporarily fixed to the main building structure 5.

[0085] Specifically, select the corresponding number of standard frame sections 1-9 according to the number of floors of the main building structure 5 (the number of standard frame sections 1-9 = the number of floors of the main building structure 5 - 2). Insert the lower end of the first standard frame section 1-9 into the slot 1-12 of the frame foundation section 1-8. Insert the lower end of the previous standard frame section 1-9 into the slot 1-12 of the next standard frame section 1-9. Insert the lower end of the top section 1-10 into the slot 1-12 of the last standard frame section 1-9.

[0086] The sliding frame can be assembled in one go, or it can be assembled layer by layer according to the height of the floors to be installed, as the construction progresses.

[0087] The lower ends of the pair of frame foundation sections 1-8 of the sliding frame slide along the track guide 3-4 of the track unit 3-1 through the track groove 1-11 to the installation position of the precast wall unit 4, and are temporarily connected and fixed to the floor slab of the main building structure 5 through the L-shaped floor connector 1-6 and the diagonal brace 1-7.

[0088] The sliding frame can be temporarily connected and fixed to the floor slab of the floor where the precast wall unit 4 is installed, or it can be temporarily connected and fixed to multiple floor slabs at the same time to improve the stability of the sliding frame during the lifting and installation of the precast wall unit 4.

[0089] Step 3: Install the lifting mechanism and positioning components inside the sliding frame.

[0090] Specifically, a pair of transmission drive components 1-2 are installed on top of a pair of lifting sliding grooves 1-13 of the sliding frame, and a support plate 2-3 is hung between the pair of lifting sliding grooves 1-13 via a pair of transmission chains 1-3. A pair of jacking components 2-4 are respectively installed on both sides of the support plate 2-3.

[0091] Step 4: At the installation floor of the main building structure 5, the position of the pre-embedded steel bars 6 is corrected by the positioning components.

[0092] Specifically, a guide wire 2-5 is pulled between the guide wire holes 2-2 of the floor installation part 1-5 at the installation floor of the main building structure 5, and the pre-embedded steel bar 6 is aligned to be set along the guide wire 2-5.

[0093] Step 5: Place the prefabricated wall unit 4 on the support plate 2-3 of the positioning component, and lift the prefabricated wall unit 4 to the installation floor along the lifting sliding groove 1-13 on the outside of the main building structure 5 using the lifting mechanism.

[0094] Specifically, a pair of transmission drive components 1-2 are activated, and a pair of transmission chains 1-3 synchronously lift the support plate 2-3 and the precast wall unit 4, so that the precast wall unit 4 is lifted along the lifting sliding groove 1-13 to the installation floor.

[0095] Step 6: Push the prefabricated wall unit 4 horizontally into the installation floor of the main building structure 5 using the positioning components.

[0096] Specifically, a pair of jacking components 2-4 are activated. The jacking ends of the jacking components 2-4 extend and support the inner wall of the lifting sliding groove 1-13, moving the support plate 2-3 horizontally along the installation sliding groove 2-1 to the installation floor of the main building structure 5. The precast wall unit 4 moves synchronously with the support plate 2-3.

[0097] Step 7: Install PE strips 7 on site according to the edge line of the positioning device, and push the precast wall unit 4 horizontally to the design position through the positioning component. After the position of the precast wall unit 4 is determined, lower it so that the precast wall unit 4 is installed in place by the pre-embedded steel bars 6.

[0098] Specifically, after installing PE strip 7 (the installation of PE strip 7 is a standard construction procedure for the installation of precast wall unit 4, and its installation process will not be described in detail here), the support plate 2-3 and the precast wall unit 4 are moved to the designed position using a pair of jacking components 2-4. At the designed position, multiple steel bar sleeves at the bottom of the precast wall unit 4 are aligned with multiple embedded steel bars 6. The support plate 2-3 is then removed and the precast wall unit 4 is lowered, allowing the multiple embedded steel bars 6 to be inserted into the multiple steel bar sleeves at the bottom of the precast wall unit 4, thereby installing the precast wall unit 4 into place.

[0099] Then, according to the conventional construction procedures, grout is filled between the steel sleeve of the precast wall unit 4 and the embedded steel bar 6. The subsequent installation and fixing procedures of the precast wall unit 4 will not be described in detail here, in order to ensure the installation reliability of the precast wall unit 4.

[0100] Step 8: Disconnect the temporary connection between the sliding frame and the main building structure 5, and slide the sliding frame along the ring track to the installation position of the next precast wall unit 4.

[0101] Specifically, after removing the floor connectors 1-6 and the diagonal braces 1-7, the pair of frame foundation sections 1-8 of the sliding frame slide along the track guide 3-4 of the track unit 3-1 through the track groove 1-11 to the installation position of the next precast wall unit 4.

[0102] Step 9: Repeat steps 5 to 8 until all prefabricated wall units 4 are positioned and installed.

[0103] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A precast wall lifting and positioning device, characterized in that, include: The system includes a lifting component, a positioning component, and a ring rail. The ring rail is installed on the ground along the length of the precast wall. The lifting component includes a sliding frame and a lifting mechanism. The lower end of the sliding frame is slidably matched and installed on the ring rail, allowing the sliding frame to slide along the length of the wall as the precast wall is installed. During the lifting and installation of the precast wall unit (4), the sliding frame is temporarily fixed to the main building structure (5). The lifting mechanism is installed inside the sliding frame. The precast wall unit (4) is set inside the sliding frame through the lifting mechanism and can be lifted to the installation floor. The positioning component is set inside the sliding frame. The embedded steel bars (6) are set on the installation floor through the positioning component, allowing the precast wall unit (4) to be moved to the installation floor through the positioning component and connected to the embedded steel bars (6).

2. The precast wall lifting and positioning device as described in claim 1, characterized in that, The sliding frame includes a base section (1-8), a standard section (1-9), a top section (1-10), and a crossbeam (1-1). Both the base section (1-8) and the standard section (1-9) have slots (1-12) at their tops. The lower end of the standard section (1-9) can be inserted into the slot (1-12) of the base section (1-8), and the lower end of the next standard section (1-9) can be inserted into the slot (1-12) of the next standard section (1-9). The lower end of the top section (1-10) can be inserted into the slot (1-12) of the standard section (1-9) or the foundation section (1-8) of the frame, so that the foundation section (1-8) and the top section (1-10) of the frame are connected to form a sliding frame unit, or the foundation section (1-8), at least one standard section (1-9) of the frame and the top section (1-10) of the frame are connected to form a sliding frame unit; a pair of sliding frame units are arranged symmetrically, and the top of the pair of sliding frame units are connected by the frame crossbeam (1-1) to form a sliding frame with an integrated structure.

3. The precast wall lifting and positioning device as described in claim 2, characterized in that, The bottom of the frame base section (1-8) is provided with a track groove (1-11) that matches the ring rail, so that the lower end of the frame base section (1-8) can be slidably matched and installed on the ring rail.

4. The precast wall lifting and positioning device as described in claim 2, characterized in that, The height of the frame base section (1-8), frame standard section (1-9), and frame top section (1-10) is consistent with the floor height; the top side of the frame standard section (1-9) and frame base section (1-8) forms a floor installation part (1-5), so that the frame standard section (1-9) and frame base section (1-8) have an inverted L-shaped structure; the floor installation part (1-5) overlaps on the floor slab of the corresponding floor of the main building structure (5) and is temporarily fixed by the floor connector (1-6); the frame base section (1-8), frame standard section (1-9), and frame top section (1-10) are temporarily fixed on the floor slab of the corresponding floor of the main building structure (5) by the diagonal brace (1-7), so that the frame base section (1-8), frame standard section (1-9), and frame top section (1-10) are set in close contact with the exterior of the main building structure (5).

5. The precast wall lifting and positioning device as described in claim 4, characterized in that, The inner sides of the frame foundation section (1-8), frame standard section (1-9), and frame top section (1-10) are formed with lifting sliding grooves (1-13) along the height direction. The lifting sliding grooves (1-13) penetrate the upper end, lower end, and one end facing the interior side of the main building structure (5) of the frame foundation section (1-8), frame standard section (1-9), and frame top section (1-10). The lifting mechanism is installed in the lifting sliding grooves (1-13) so that the precast wall unit (4) moves along the lifting sliding grooves between a pair of sliding frame units through the lifting mechanism. (1-13) Lifted to the installation floor; an installation sliding groove (2-1) is formed on the inner side of the floor installation part (1-5) along the width direction. The installation sliding groove (2-1) passes through one end of the floor installation part (1-5) facing the exterior of the main building structure (5) and is connected to the lifting sliding groove (1-13). The positioning component is set in the lifting sliding groove (1-13) and the installation sliding groove (2-1) so that the precast wall unit (4) is moved to the installation floor through the positioning component along the installation sliding groove (2-1) and is connected to the pre-embedded steel bar (6).

6. The precast wall lifting and positioning device as described in claim 2, 4, or 5, characterized in that, The top section (1-10) of the frame is provided with a limiting plate (1-4) at one end facing the interior side of the main building structure (5). One side of the limiting plate (1-4) is flush with the inner side of the top section (1-10) of the frame, and the other side of the limiting plate (1-4) is bent to form an L-shaped structure.

7. The precast wall lifting and positioning device as described in claim 5, characterized in that, The lifting mechanism includes a transmission drive component (1-2) and a transmission chain (1-3); a pair of transmission drive components (1-2) are respectively installed on the top of the lifting sliding groove (1-13) of a pair of sliding frame units, one end of a pair of transmission chains (1-3) is respectively connected to the output end of a pair of transmission drive components (1-2), and the other end of a pair of transmission chains (1-3) is respectively connected to the two ends of the positioning component.

8. The precast wall lifting and positioning device as described in claim 7, characterized in that, The positioning assembly includes a support plate (2-3) and a pusher (2-4); the precast wall unit (4) is placed on the support plate (2-3), and the other ends of a pair of transmission chains (1-3) are respectively connected to the two sides of the support plate (2-3), so that the precast wall unit (4) can be vertically lifted along the lifting sliding groove (1-13) via the transmission drive (1-2) and the transmission chain (1-3) with the support plate (2-3); a pair of pushers (2-4) are respectively installed on the two sides of the support plate (2-3), and the pushing end of the pusher (2-4) can be supported on the inner wall of the lifting sliding groove (1-13), so that the precast wall unit (4) can slide along the support plate (2-3) into the installation sliding groove (2-1) and move horizontally along the installation sliding groove (2-1) into the installation floor; The positioning component also includes a lead wire hole (2-2), which is formed on the floor mounting part (1-5). A lead wire (2-5) is pulled between the lead wire holes (2-2) of the floor mounting parts (1-5) at the same height of a pair of sliding frame units, and a pre-embedded steel bar (6) is located on the lead wire (2-5).

9. The precast wall lifting and positioning device as described in claim 3, characterized in that, The ring track includes a track unit (3-1), a connector (3-2), and a connecting piece (3-3). The two ends of the connecting piece (3-3) are connected to the ends of two adjacent track units (3-1) through the connector (3-2), so that several pairs of track units (3-1) can be connected in sequence to form a ring track arranged along the length of the precast wall surface. The track unit (3-1) has a track guide part (3-4) that matches the track groove (1-11), so that the lower end of the frame foundation section (1-8) can slide along the track guide part (3-4) through the track groove (1-11).

10. A construction method for the precast wall lifting and positioning device as described in claim 1, characterized in that, Includes the following steps: Step 1: Install the ring rail along the length of the precast wall; Step 2: Assemble the sliding frame according to the number of floors of the main building structure (5). The sliding frame slides along the ring rail to the installation position of the prefabricated wall unit (4) and is temporarily fixed on the main building structure (5). Step 3: Install the lifting mechanism and positioning components inside the sliding frame; Step 4: At the installation floor of the main building structure (5), the position of the embedded steel bars (6) is corrected by the positioning components; Step 5: Place the precast wall unit (4) on the positioning component and lift the precast wall unit (4) to the installation floor from the outside of the main building structure (5) using the lifting mechanism; Step 6: Push the prefabricated wall unit (4) horizontally into the installation floor of the main building structure (5) using the positioning components; Step 7: Install PE strips (7) on site according to the edge line of the positioning device, and push the precast wall unit (4) horizontally to the design position through the positioning component. After the position of the precast wall unit (4) is determined, lower it so that the precast wall unit (4) is installed in place through the pre-embedded steel bars (6). Step 8: Disconnect the temporary connection between the sliding frame and the main building structure (5), and slide the sliding frame along the ring track to the installation position of the next precast wall unit (4); Step 9: Repeat steps 5 to 8 until all prefabricated wall units (4) are positioned and installed.

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