Quick mounting and positioning device and method for prefabricated wall panel

Abstract

The invention discloses a quick mounting and positioning device and method for a prefabricated wallboard, the quick mounting and positioning device comprises a positioning base, the positioning base is suitable for being fixed on a floor slab and is provided with a backup plate used for abutting against the inner side face of the prefabricated wallboard, and the backup plate is parallel to an XZ plane; the rotating support is rotatably connected to the positioning base relative to the Z axis and is provided with a first fastening mechanism used for fixing the rotating support at a preset rotating position relative to the positioning base; and the movable supporting plate can be installed on the rotating support in a displacement adjusting mode along the Y axis, and the movable supporting plate is provided with a second fastening mechanism used for fixing the movable supporting plate at a preset adjusting position relative to the rotating support. Reliable positioning of the inner side of the wallboard is achieved, and rapid positioning and supporting of the outer side of the wallboard are achieved through the rotatable and adjustable movable supporting plate.

Description

Technical Field

[0001] The present invention is applied to the field of prefabricated building construction. Specifically, the present invention discloses a rapid installation and positioning device and method for precast wall panels. Background Art

[0002] The construction industry is increasingly adopting prefabricated building methods to improve efficiency. Precast wall panels are key components in such buildings, and their installation efficiency directly affects the overall project schedule. Therefore, improving the speed and safety of wall panel installation has become a key issue in prefabricated building construction.

[0003] Traditionally, the installation of precast wall panels usually involves using L-shaped fasteners (such as 7-shaped codes) to position the inner side of the wall panel and align it with the reference line. However, this method has several drawbacks. First, these L-shaped fasteners usually cannot fix the outer side of the wall panel, and workers need to manually hold and steady the wall panel to maintain its position. This not only increases the labor demand but also poses significant safety risks on site. Second, relying solely on L-shaped fasteners is not sufficient to ensure the verticality of the lower part of the wall panel. Therefore, a large number of temporary diagonal braces or support rods must be installed at the bottom of the wall panel to achieve and maintain its verticality, which is time-consuming and further reduces the installation efficiency.

[0004] To address some of these challenges, various solutions have been proposed. For example, Chinese Patent Application CN201910398531.3 discloses an "installation positioning and formwork device for precast wall panels of prefabricated buildings". The device of the present invention includes a frame, an electric telescopic jacking mechanism for precise vertical adjustment of the wall panel, and a formwork assembly that operates through an electric winch and steel wire ropes to fix the wall panel, usually using a top-down installation method.

[0005] Another solution can be found in Chinese Utility Model Patent CN202321130206.7, which describes an "assembly wall panel positioning and installation device". The device of the present invention includes a fixed bracket installed on the cast-in-place floor slab, a horizontal beam with a notch, and two adjustable clamping arms equipped with rollers in the notch for clamping the wall panel. Its purpose is to provide a reusable and convenient positioning solution.

[0006] Despite these advancements, there is still a need for a more efficient and safer method for quickly positioning and fixing the lower part of precast wall panels. Existing solutions may not be fully optimized to reduce manual intervention, especially the labor-intensive task of installing a large number of bottom diagonal braces, or there may be limitations in achieving the adjustability and ease of operation for precise positioning and stable temporary fixing of the bottom of the wall panel. Effectively controlling the verticality and stability of the bottom of the wall panel while minimizing the dependence on traditional support methods is crucial for further improving the construction speed and on-site safety. Summary of the Invention

[0007] To solve the above technical problems, the present invention provides a rapid installation and positioning device for precast wall panels, which includes a positioning base adapted to be fixed on a floor slab and having a backing plate for abutting against the inner side surface of the precast wall panel, wherein the backing plate is parallel to the XZ plane and the X axis is perpendicular to the backing plate; a rotating bracket rotatably connected to the positioning base relative to the Z axis and provided with a first fastening mechanism for fixing it relative to the positioning base at a predetermined rotation position; a movable support plate movably mounted on the rotating bracket along the Y axis (i.e., the Y axis can rotate around the Z axis) and having a support plate surface for abutting against the outer side surface of the precast wall panel, and the movable support plate is provided with a second fastening mechanism for fixing it relative to the rotating bracket at a predetermined adjustment position; wherein, the lower part of the precast wall panel is clamped between the backing plate of the positioning base and the support plate surface of the movable support plate.

[0008] As a preferred solution, the positioning base includes a bottom plate, the backing plate fixed on the bottom plate, columns fixed on the bottom plate, and a rotating column rotatably sleeved on the columns around the Z axis; the rotating bracket is connected to the rotating column through a rotating bracket connecting rod, and the first fastening mechanism is a rotating bracket set screw acting between the rotating bracket connecting rod and the rotating column.

[0009] As a preferred solution, the positioning base further includes corner columns fixed on the bottom plate and the backing plate, and corner column ear plates are provided on the corner columns; the rotating bracket includes a right-angle frame, a rotating ear plate hinged to the corner column ear plate is provided on the right-angle frame, and a push-stop ear plate hinged to the rotating bracket connecting rod.

[0010] As a preferred solution, a middle column and at least one side column are fixedly connected to the outer side of the right-angle frame of the rotating bracket, and a middle hole and side holes for the rods of the movable support plate to pass through along the Y axis direction are respectively opened on the middle column and the side columns; the movable support plate includes the support plate surface and a middle rod and at least one side rod fixedly connected to one side thereof, and the middle rod and the side rods are respectively slidably fitted in the middle hole and the side holes along the Y axis.

[0011] As a preferred solution, the second fastening mechanism is a movable support plate set screw, and the movable support plate set screw is screwed on the middle column and used to press against the middle rod to limit its displacement along the Y axis.

[0012] The present invention also provides an installation and positioning method using the above rapid installation and positioning device for precast wall panels, which is characterized by including the following steps:

[0013] (A) Taking the backing plate of the positioning base as the inner side positioning reference for the precast wall panel;

[0014] (B) placing the inner side surface of the prefabricated wall panel against the backing plate;

[0015] (C) operating the rotating bracket to move the movable support plate to the outer side of the prefabricated wall panel and fixing the rotating bracket;

[0016] (D) adjusting the movable support plate so that its support plate surface is pressed against the outer side surface of the prefabricated wall panel, thereby clamping the lower part of the prefabricated wall panel between the back plate and the support plate surface, and fixing the movable support plate to achieve positioning and verticality control of the lower part of the prefabricated wall panel.

[0017] As a preferred solution, step (A) includes: fixing at least two of the positioning devices at corresponding positions of the floor slab according to the size and installation position of the prefabricated wall panel, and adjusting the back plate of the positioning base to align with the inner installation reference line of the prefabricated wall panel in the X-axis direction.

[0018] As a preferred solution, step (C) includes: loosening the first fastening mechanism by screwing, operating the rotating bracket to rotate around the Z axis to a predetermined position; and then fixing the rotating bracket by the first fastening mechanism.

[0019] As a preferred solution, step (D) includes: loosening the second fastening mechanism by screwing, adjusting the displacement of the movable support plate along the Y-axis so that its support plate surface is pressed against the outer side surface of the prefabricated wall panel; and then fixing the movable support plate by the second fastening mechanism.

[0020] As a preferred solution, after step (D), the method further includes installing an upper diagonal brace to fix the upper part of the prefabricated wall panel.

[0021] The beneficial effects of the present invention are as follows: the device of the present invention realizes reliable positioning of the inner side of the wall panel through the positioning base, and realizes rapid positioning and support of the outer side of the wall panel through the rotatable and adjustable movable support plate. This internal and external bidirectional clamping method effectively solves the problem of difficult fixing of the outer side of the wall panel in the traditional installation method, significantly reduces the steps of manually pulling the wall panel, and greatly reduces the number of lower diagonal braces used and the adjustment time, thereby improving the overall installation efficiency of the prefabricated wall panel.

[0022] Furthermore, the present invention can accurately control the installation position and verticality of the lower part of the prefabricated wall panel through the cooperation of the back plate of the positioning base and the support plate surface of the movable support plate, thereby ensuring the quality of the wall panel installation.

[0023] Furthermore, the present invention can also reduce the need for manual direct pulling and supporting of the wall panels, reduce the risk of high-altitude operations and safety accidents caused by accidental dumping of the wall panels, and ensure the safety of construction workers.

[0024] Furthermore, the device of the present invention has a reasonable structural design and is simple and convenient to operate. The rotation of the rotating bracket and the adjustment of the movable support plate are both realized through a simple fastening mechanism, which is easy for ordinary workers to master. By adjusting the installation spacing of the device, it can adapt to the installation of precast wall panels with different length specifications.

[0025] Furthermore, since the device of the present invention can effectively fix the lower part of the wall panel, only a small amount of inclined struts are needed to cooperate with the upper part to complete the overall fixation of the wall panel, greatly reducing the input and turnover of inclined strut materials and lowering the construction cost.

[0026] Furthermore, under the combined action of the positioning base, the rotating bracket and the movable support plate of the present invention, the verticality of the lower part of the precast wall panel has been basically adjusted in place during the positioning process. When installing the upper inclined strut subsequently, no adjustment or only fine adjustment is required, simplifying the complex process of repeatedly adjusting the inclined strut to ensure the verticality of the wall panel in traditional installation.

[0027] Specifically, first of all, the device disclosed in the present invention defines a rapid installation and positioning device for precast wall panels, the core of which includes a positioning base for inner positioning and its backing plate, a rotating bracket that can rotate relative to the positioning base, and a movable support plate that is adjustably installed on the rotating bracket for outer abutment. Through this structure, the lower part of the precast wall panel can be stably clamped between the backing plate of the positioning base and the support surface of the movable support plate. Therefore, the device of the present invention can simultaneously achieve the internal and external two-way positioning and fixation of the lower part of the precast wall panel, thus significantly improving the installation efficiency, because it avoids the problem that only one-sided positioning can be achieved in the traditional method and manual support or a large number of inclined struts are required on the outside, and improves the stability and safety of the installation.

[0028] Secondly, the present invention further defines the specific structure of the positioning base, including a bottom plate, a backing plate, a column and a rotating column that can rotate around the Z-axis, and the rotating bracket is connected to the rotating column through a rotating bracket connecting rod, and the first fastening mechanism is a rotating bracket set screw. This specific connection method makes the rotation action of the rotating bracket smoother and more controllable. At the same time, the setting of the rotating bracket set screw can reliably fix the rotating bracket in the required working position, thereby ensuring that the movable support plate can accurately move to the outside of the precast wall panel for support, further enhancing the convenience of device operation and the reliability of positioning.

[0029] Thirdly, the present invention further supplements the connection details between the positioning base and the rotating bracket, defining the corner column and its corner column ear plate, as well as the hinge relationship between the rotating ear plate and the push-stop ear plate on the rotating bracket. The refinement of this hinge structure not only provides a stable rotation fulcrum for the rotating bracket, but also makes the rotation and fixation of the rotating bracket more precise and firm through the cooperation of the push-stop ear plate and the rotating bracket connecting rod, thus improving the structural stability and positioning accuracy of the entire device.

[0030] Then, the present invention describes in detail the installation method of the movable support plate on the rotating bracket, including the sliding fit between the middle column, the middle holes and side holes on the side columns, and the middle rod and side rods of the movable support plate. This design enables the movable support plate to smoothly adjust its displacement along the Y-axis to adapt to precast wall panels of different thicknesses or installation deviations, thereby enhancing the applicability of the device and the flexibility of adjustment. At the same time, the guiding and supporting structure of multiple rods also ensures the stability of the movable support plate when stressed.

[0031] Finally, the present invention further clarifies that the second fastening mechanism is a set screw for the movable support plate, which is used to press against the middle rod to limit its displacement along the Y-axis. This simple and effective fastening method enables the operator to quickly and conveniently fix the movable support plate at the required support position, thereby ensuring reliable support for the outer side of the precast wall panel, simplifying the operation steps, and improving work efficiency.

[0032] The method of the present invention defines an installation and positioning method using the above device. The core steps include using the backing plate of the positioning base as the inner positioning reference, abutting the inner side surface of the precast wall panel against the backing plate, then operating the rotating bracket to move the movable support plate to the outer side surface of the wall panel and fixing it, and finally adjusting the movable support plate to make it abut tightly against the outer side surface of the wall panel and clamping and fixing the lower part of the wall panel. This method provides a complete process for quickly positioning the lower part of the precast wall panel and controlling its verticality. Due to the use of the internal and external double clamping method, it can significantly reduce the dependence on the lower inclined struts in the traditional installation method, thereby greatly shortening the installation time and improving the construction efficiency. At the same time, because the lower part of the wall panel is effectively fixed, the need for manual support is also reduced, enhancing the construction safety and ensuring the installation accuracy and verticality of the wall panel.

[0033] Secondly, the method steps of the present invention are refined, and it is clear that at least two positioning devices are fixed according to the size and installation position of the wall panel, and the backing plate is adjusted to align with the inner installation reference line. This specific operation ensures the accurate initial setting of the positioning base, laying a solid foundation for the precise installation of the subsequent wall panel, and thus ensuring the reference accuracy of the entire wall panel installation.

[0034] Thirdly, the process of operating the rotating bracket in the method of the present invention includes loosening and tightening the first fastening mechanism and rotating around the Z-axis. This clear operation step enables the worker to clearly understand how to rotate the rotating bracket from the initial position to the working position and fix it reliably, thereby ensuring the standardization of the operation and the effective play of the device function, and further ensuring that the movable support plate can reach the predetermined area smoothly.

[0035] Then, in the method steps of the present invention, the process of adjusting the movable support plate includes loosening and tightening the second fastening mechanism and adjusting the displacement along the Y-axis. Such detailed adjustment instructions enable the operator to precisely control the degree of fitting between the movable support plate and the outer side of the precast wall panel, thereby ensuring effective clamping and support of the wall panel and guaranteeing the stability of the final positioning and the accuracy of the verticality control.

[0036] Finally, the method of the present invention adds the step of installing the upper diagonal brace. The method of the present invention mainly solves the problem of rapid positioning and fixing of the lower part of the wall panel. By using the method of the present invention, the use and adjustment work of the lower diagonal brace can be significantly reduced. Therefore, after the lower part of the wall panel is effectively fixed, only a small number of upper diagonal braces are needed to complete the overall stability of the wall panel, which further reflects the advantages of the present invention in simplifying the overall installation process, improving efficiency and reducing material consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the disclosed embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. These drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention.

[0038] Figure 1 Isometric schematic diagram of an embodiment of a rapid installation and positioning device for a precast wall panel of the present invention;

[0039] Figure 2 For Figure 1 Top view schematic diagram of the device shown;

[0040] Figure 3 For Figure 1 Isometric schematic diagram of the positioning base in the device shown;

[0041] Figure 4 For Figure 1 Left isometric view (showing part of the internal structure) of the rotating bracket in the device shown;

[0042] Figure 5 For Figure 1 Right isometric view (showing part of the internal structure) of the rotating bracket in the device shown;

[0043] Figure 6 For Figure 1 Isometric schematic diagram of the movable support plate in the device shown;

[0044] Figure 7 Schematic diagram of the rotation action of the rotating bracket in an embodiment of the present invention;

[0045] Figure 8 Schematic diagram of the action of the movable support plate in an embodiment of the present invention;

[0046] Figure 9 Schematic diagram of step 1 of a rapid installation and positioning method for a precast wall panel according to the present invention;

[0047] Figure 10 Schematic diagram of step 2 of a rapid installation and positioning method for a precast wall panel according to the present invention;

[0048] Figure 11 Schematic diagram of step 4 of a rapid installation and positioning method for a precast wall panel according to the present invention (partially showing the rotation and movement process of the movable support plate);

[0049] Figure 12 Schematic diagram of step 7 of a rapid installation and positioning method for a precast wall panel according to the present invention (partially showing the process of the movable support plate pressing tightly);

[0050] Figure 13 Schematic diagram of step 9 of a rapid installation and positioning method for a precast wall panel according to the present invention;

[0051] In the figure: 1 - positioning base; 2 - rotating bracket connecting rod; 3 - rotating bracket set screw; 4 - rotating bracket; 5 - movable support plate; 6 - movable support plate set screw; 7 - precast wall panel; 8 - expansion bolt; 9 - upper diagonal brace; 10 - floor slab; 101 - bottom plate; 1011 - central positioning hole; 1012 - side positioning holes; 102 - backing plate; 103 - rib plate; 104 - column; 105 - rotating column; 1051 - fixing hole; 1052 - insertion hole; 106 - corner column; 1061 - corner column ear plate; 401 - right-angle bracket; 402 - rotating ear plate; 403 - push-stop ear plate; 404 - middle hole; 405 - side hole; 406 - middle column; 4061 - middle column fastening hole; 407 - side column; 501 - support plate; 502 - middle rod; 503 - side rod. Detailed implementation manners

[0052] The technical solutions (including preferred technical solutions) of the present invention will be further described in detail below by means of the accompanying drawings and by listing some optional embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0053] The present invention provides a rapid installation and positioning device for a precast wall panel, and its structure can be understood with reference to the attached Figures 1 to 6 For overall understanding, the device of the present invention mainly integrates core components such as a positioning base 1, a rotating bracket connecting rod 2, a rotating bracket set screw 3, a rotating bracket 4, a movable support plate 5, and a movable support plate set screw 6. In actual application, in order to effectively fix the lower part of a precast wall panel 7, usually at least two such positioning devices need to be deployed (such as Figure 9As shown, there is one on each side (left and right), and they are stably installed on the floor slab 10 structure through expansion bolts 8.

[0054] The positioning base 1 of the present invention serves as the bearing foundation of the entire device and shoulders the key task of providing initial positioning and stable support for the inner side of the precast wall panel 7. Specifically, the positioning base 1 includes a solid bottom plate 101, such as a rectangular steel plate made of Q235 steel, whose dimensions (such as length 300 mm, width 200 mm, thickness 10 mm) ensure sufficient strength and stability. Holes for installation and fixation are carefully drilled on the bottom plate 101, including a central positioning hole 1011 for facilitating the initial alignment of the installation line and two side positioning holes 1012 for enhancing the fixing stability. These holes are all adapted to standard expansion bolts 8. Vertically welded to the bottom plate 101 is a similarly solid backing plate 102, whose height, thickness, and length are reasonably designed, and the inner side is flat and smooth to ensure close fitting with the precast wall panel 7. This backing plate 102 constitutes the positioning reference surface for the inner side of the wall panel, and its plane after installation is strictly parallel to the inner installation reference line of the precast wall panel 7. To further enhance the rigidity of the connection between the backing plate 102 and the bottom plate 101, several rib plates 103 are evenly welded between them. In addition, a column 104 serving as the support shaft of the rotating mechanism is vertically welded on the positioning base 1, and its material and dimensions are also considered. Matched with the column 104 is a hollow rotating column 105 that can freely rotate around the axis of the column 104 (i.e., the Z-axis). Its inner and outer diameters and height are precisely designed. An insertion hole 1052 for connecting the rotating bracket link 2 and a fixing hole 1051 for screwing in the set screw of the rotating bracket 3 are provided at the upper part. To provide an additional stable rotation fulcrum for the rotating bracket 4, corner columns 106 may also be welded at the corners of the bottom plate 101, and corner column ear plates 1061 are provided at the top for hinging with the corresponding components of the rotating bracket 4.

[0055] The rotating bracket link 2 of the present invention serves as a component for transmitting motion and force. It is usually a solid rod. One end can pass through the insertion hole 1052 of the rotating column 105 and be fixed by the set screw 3 of the rotating bracket, and the other end is connected to a specific structure on the rotating bracket 4, namely the push-stop ear plate 403. The set screw 3 of the rotating bracket is a standard fastener that tightens the rotating bracket link 2 by screwing into the fixing hole 1051 of the rotating column 105, thereby realizing the relative fixation of the rotating mechanism.

[0056] The rotating bracket 4 of the present invention itself is the core hub connecting the positioning base 1 and the movable support plate 5, enabling the movable support plate 5 to rotate relative to the positioning base 1 and preliminarily determine the radial position. The main body of the rotating bracket 4 is usually an L-shaped or approximately L-shaped right-angle bracket 401, which is formed by welding steel sections. One end is provided with a rotating ear plate 402 that mates with the corner post ear plate 1061 of the positioning base 1, and articulated rotation is achieved through a pin shaft; at another appropriate position, a push-stop ear plate 403 connected to the rotating bracket link 2 is provided. On the outer side of the right-angle bracket 401, a middle column 406 and a side column 407 for installing and guiding the movable support plate 5 are also welded. Middle holes 404 and side holes 405 for the rods of the movable support plate 5 to slide through are respectively provided on these columns, and the axes of the holes are parallel to the Y-axis direction. A middle column fastening hole 4061 for screwing in the movable support plate set screw 6 is also provided on the middle column 406.

[0057] In the present invention, for the movable support plate 5 that directly contacts the outer side of the precast wall panel 7 and applies a supporting force, its core component is a support plate surface 501 with a certain area and a flat contact surface. A middle rod 502 and a side rod 503 that are perpendicular to it and parallel to the Y-axis are welded to its back. These rods respectively slide and fit in the middle hole 404 and the side hole 405 of the rotating bracket 4. Finally, the movable support plate set screw 6 is screwed into the middle column fastening hole 4061 of the middle column 406 of the rotating bracket 4 to tighten the middle rod 502 of the movable support plate 5, thereby firmly fixing it at the required Y-axis position.

[0058] The working process of the present invention refers to Figures 7 to 13 .

[0059] Step (a) Install the positioning device (refer to Figure 9 ): According to the length L of the precast wall panel 7 to be installed and the predetermined installation position, mark the installation points of the two positioning devices on the floor slab 10. The distance between the two devices is usually slightly less than the wall panel length L, such as L - 200 mm, to ensure effective support for both ends of the wall panel. Use an impact drill to drill holes at the marked points, and then fix at least two positioning devices described in this embodiment to the floor slab 10 through expansion bolts 8. When fixing, it should be ensured that the inner side surface of the backing plate 102 of each positioning base 1 is precisely aligned with the inner installation reference line of the precast wall panel 7 (usually marked by an ink line), that is, the plane of the backing plate 102 coincides with or is parallel to the installation reference line and the distance is zero. At the same time, ensure that the backing plates 102 of the two positioning devices are in the same plane. At this time, the rotating bracket 4 and the movable support plate 5 are usually in the retracted or opened state and do not interfere with the hoisting of the wall panel.

[0060] Step (b) Hoist the precast wall panel (refer to Figure 10):Use a tower crane or other lifting equipment to hoist the precast wall panel 7 into place. Slowly lower the wall panel so that its inner side (i.e., the inner wall surface of the future room) gently and evenly leans against the entire surface of the backing plates 102 of the two positioning bases 1. At this time, the lower edge of the wall panel lands on the floor slab 10 or on the preset cushion blocks. The backing plates 102 provide the initial positioning for the inner side of the wall panel.

[0061] Step (c) Rotate and fix the rotating bracket (refer to Figure 7 and Figure 11 ):For each positioning device, first loosen the set screw 3 of the rotating bracket. Then, manually operate the rotating bracket 4 so that it rotates around the Z-axis (i.e., the axis of the column 104) and / or around its hinge point with the corner column ear plate 1061. The purpose of the rotation is to move the movable support plate 5 from its initial non-working position (such as parallel to the backing plate 102 or in an outwardly open position) to near the outer side of the precast wall panel 7. When the rotating bracket 4 reaches the appropriate working position (i.e., the movable support plate 5 is facing the outer side of the wall panel and there is sufficient adjustment space), tighten the set screw 3 of the rotating bracket again to lock the rotating bracket link 2 in the rotating column 105, thereby fixing the rotating bracket 4 at this rotation angle.

[0062] Step (d) Adjust and fix the movable support plate (refer to Figure 8 and Figure 12 ):For each positioning device, first loosen the set screw 6 of the movable support plate. Then, manually push or pull the movable support plate 5 along the Y-axis direction (the Y-axis can rotate around the Z-axis) so that the support surface 501 of the support plate gradually approaches and finally evenly and tightly presses against the outer side of the precast wall panel 7. During the process of pushing the movable support plate 5, it should be ensured that the inner side of the precast wall panel 7 always remains in full contact with the backing plate 102 of the positioning base 1. The fitting condition can be checked by observation or using a feeler gauge. When the support surface 501 of the movable support plate 5 is in reliable contact with the outer side of the wall panel and an appropriate pre-tightening force is applied, tighten the set screw 6 of the movable support plate to lock the middle rod 502 in the middle hole 404 of the middle column 406, thereby fixing the movable support plate 5 at this Y-axis position.

[0063] At this time, the lower part of the precast wall panel 7 is firmly clamped between the backing plate 102 of the positioning base 1 and the support surface 501 of the movable support plate 5, and its lower horizontal position and verticality are effectively controlled and fixed.

[0064] Step (e) Install the upper diagonal brace (refer to Figure 13):After being reliably fixed by the device of the present invention at the lower part of the precast wall panel 7, its verticality has been basically ensured. At this time, only a small number (such as 1-2) of conventional upper diagonal braces 9 need to be installed at the upper part of the precast wall panel 7, with one end connected to the preset connection point on the wall panel and the other end fixed on the floor slab or adjacent structure. Since the lower part is already stable, the installation and adjustment of the upper diagonal braces will be very simple and fast, mainly playing the role of auxiliary stability and resisting construction disturbances.

[0065] Subsequent processes and device removal in step (f): After subsequent processes such as wall panel grouting and connection node construction are completed, and the wall panel itself can already be stable or form a stable system with other structures, the positioning device of the present invention can be removed in the reverse order of installation. That is, first loosen the set screw 6 of the movable support plate, move the movable support plate 5 away, then loosen the set screw 3 of the rotating bracket, turn the rotating bracket 4 away, and finally remove the connection between the positioning base 1 and the floor slab. The removed device can be reused for the installation of the next wall panel.

[0066] The design of the present invention is not only simple in structure and convenient to operate, but also can significantly improve the installation efficiency and accuracy, reduce the dependence on traditional diagonal braces, and effectively ensure construction safety.

[0067] In order to adapt to different application scenarios or pursue more precise adjustment capabilities, the structure of the device can be improved. For example, in the rotating mechanism of the positioning base 1, a rolling bearing can be added between the upright column 104 and the rotating column 105 to reduce the rotational friction, making the rotation of the rotating bracket 4 more labor-saving, especially suitable for the design of a heavier rotating bracket. At the same time, in addition to the main fixing holes on the bottom plate 101, oblong holes for fine-tuning the X-axis position can also be considered, in cooperation with adjustment screws, so as to more accurately align with the installation reference line after initial fixation, thereby improving the accuracy of initial positioning.

[0068] For the rotating bracket 4 itself, its locking mechanism can also be optimized. For example, a quick locking mechanism with a handle, such as eccentric wheel locking or spring pin positioning, can be adopted to replace the traditional set screw 3 of the rotating bracket, which will significantly improve the operation speed of locking and unlocking and enhance work efficiency. In addition, in order to facilitate the operator to quickly and accurately rotate the rotating bracket 4 to a preset common angle, an angle scale and a pointer can be added to the rotating bracket 4 or the positioning base 1 as an aid.

[0069] The adjustment mechanism of the movable support plate 5 is another part that can be improved with emphasis. One possible improvement is to design the middle rod 502 of the movable support plate 5 as a lead screw and install a nut seat at the corresponding position on the middle column 406 of the rotating bracket 4. By rotating the handwheel connected to the lead screw or using a wrench, the lead screw (middle rod 502) is driven to feed or retreat smoothly in the nut seat, so as to achieve precise fine-tuning of the movable support plate 5 in the Y-axis direction. This lead screw adjustment method can not only provide a greater clamping force, but also the control of the clamping force is more precise and stable, effectively avoiding damage to the wall panel 7 or inaccurate positioning caused by improper clamping force. Another idea is to design a two-stage adjustment mechanism, that is, the first stage is to perform rough and rapid telescopic positioning through a sliding rod and a set screw (such as the movable support plate set screw 6), and the second stage is to use a short-stroke lead screw mechanism on this basis for precise fine-tuning and applying the final clamping force. This combination method takes into account both the adjustment speed and the adjustment accuracy.

[0070] The material selection can also be adjusted according to specific environments. For example, in a humid or corrosive environment, materials such as stainless steel or aluminum alloy with special surface treatment can be preferentially selected to enhance the durability and service life of the device.

[0071] When the present invention adopts a quick-locking mechanism with a handle, when fixing the rotating bracket 4, the operator only needs to easily operate the handle to complete the locking action without the aid of other tools. If angle scales are set, the rotating bracket 4 can be conveniently rotated to the preset angle mark according to the model of the wall panel or the actual situation on site. Similarly, if the movable support plate 5 adopts a lead screw adjustment mechanism, after the movable support plate 5 is roughly moved to near the outside of the precast wall panel 7, the operator needs to rotate the lead screw handwheel to make its support surface 501 slowly and precisely press against the wall panel 7, and the magnitude of the clamping force can be carefully controlled by the number of rotations of the handwheel or the operating resistance felt.

[0072] The improved design may bring additional or more significant beneficial effects. For example, the introduction of rolling bearings makes the rotation of the rotating bracket 4 more convenient and labor-saving, reducing the labor intensity of the operator. The application of the lead screw adjustment mechanism enables the positioning of the movable support plate 5 and the control of the clamping force to reach a higher precision, which is particularly important for ensuring the verticality of the wall panel 7 and avoiding surface damage to the wall panel 7 caused by excessive clamping force. The adoption of certain quick-locking mechanisms is more suitable for construction occasions that require frequent quick operations, effectively improving the overall operation rhythm. And the selection of more corrosion-resistant materials will undoubtedly extend the service life of the device in harsh environments and reduce the maintenance cost.

[0073] The precast wall panel rapid installation and positioning device and its supporting method provided by the present invention, with its ingenious structural design and optimized operation process, have successfully achieved rapid, stable and accurate positioning and fixation of the lower part of the precast wall panel 7. This not only effectively solves many problems existing in the installation process of precast wall panels in the prior art, such as low efficiency, cumbersome operation, safety hazards and strong dependence on a large number of auxiliary supports, but also demonstrates significant technological progressiveness and extensive practical application value. Those skilled in the art can completely make reasonable modifications, adjustments and transformations to the specific structure disclosed by the present invention according to the above detailed description and in combination with their specific requirements and actual conditions in specific construction. However, all these modifications and transformations made without departing from the core idea and essence of the technical solution of the present invention should be regarded as falling within the scope of protection required by the present invention.

Claims

1. A rapid installation and positioning device for precast wall panels, characterized in that, including a positioning base (1) adapted to be fixed on a floor slab, the positioning base (1) being provided with a backing plate (102) for abutting against the inner side surface of a precast wall panel (7), wherein the backing plate (102) is parallel to the XZ plane; a rotating bracket (4) rotatably connected to the positioning base (1) relative to the Z-axis and provided with a first fastening mechanism (3) for fixing it relative to the positioning base (1) at a predetermined rotational position; a movable support plate (5) adjustably displaceable along the Y-axis and mounted on the rotating bracket (4), the Y-axis being rotatable about the Z-axis and having a support plate surface (501) for abutting against the outer side surface of the precast wall panel (7), the movable support plate (5) being provided with a second fastening mechanism (6) for fixing it relative to the rotating bracket (4) at a predetermined adjustment position; wherein the lower part of the precast wall panel (7) is clamped between the backing plate (102) of the positioning base (1) and the support plate surface (501) of the movable support plate (5).

2. The device according to claim 1, wherein The positioning base (1) includes a bottom plate (101), the backing plate (102) fixedly connected to the bottom plate (101), a column (104) fixedly connected to the bottom plate (101), and a rotating column (105) rotatably sleeved on the column (104) about the Z-axis; the rotating bracket (4) is connected to the rotating column (105) through a rotating bracket link (2), and the first fastening mechanism (3) is a rotating bracket set screw (3) acting between the rotating bracket link (2) and the rotating column (105).

3. The device according to claim 2, characterized in that, The positioning base (1) further includes a corner column (106) fixedly connected to the bottom plate (101) and the backing plate (102), the corner column (106) being provided with a corner column ear plate (1061); the rotating bracket (4) includes a right-angle frame (401), the right-angle frame (401) being provided with a rotating ear plate (402) hinged to the corner column ear plate (1061), and a push-stop ear plate (403) hinged to the rotating bracket link (2).

4. The device according to claim 1 or 3, characterized in that, The outer side of the right-angle frame (401) of the rotating bracket (4) is fixedly connected with a middle column (406) and at least one side column (407), the middle column (406) and the side column (407) being respectively provided with a middle hole (404) and a side hole (405) for the rod member of the movable support plate (5) to pass through in the Y-axis direction; the movable support plate (5) includes the support plate surface (501) and a middle rod (502) and at least one side rod (503) fixedly connected to one side thereof, the middle rod (502) and the side rod (503) being respectively slidably fitted in the middle hole (404) and the side hole (405) in the Y-axis direction.

5. The device according to claim 4, characterized in that The second fastening mechanism (6) is a movable support plate set screw (6), and the movable support plate set screw (6) is screwed on the middle column (406) and used to press against the middle rod (502) to limit its displacement along the Y-axis.

6. An installation and positioning method using the precast wall panel quick installation and positioning device according to any one of claims 1 to 5, characterized in that, including the following steps: According to the size and installation position of the precast wall panel (7), fix at least two of the positioning devices at the corresponding positions on the floor slab (10), and adjust the backing plate (102) of the positioning base (1) so that it is aligned with the inner installation reference line of the precast wall panel (7) in the X-axis direction and the backing plate (102) is parallel to the XZ plane; hoist the precast wall panel (7) so that its inner side fits against the plate surface of the backing plate (102) of the positioning base (1) in the X-axis direction; rotate the rotary bracket (4) around the Z-axis to move the movable support plate (5) to the outer side of the precast wall panel (7), and then fix the rotary bracket (4) through the first fastening mechanism (3); adjust the position of the movable support plate (5) along the Y-axis so that its support plate surface (501) pushes and presses tightly against the outer side of the precast wall panel (7) in the X-axis direction, so that the inner side of the precast wall panel (7) fits tightly against the plate surface of the backing plate (102) of the positioning base (1), and then fix the movable support plate (5) through the second fastening mechanism (6), thereby realizing the positioning and verticality control of the lower part of the precast wall panel (7).

7. The method according to claim 6, characterized in that, The distance between the at least two positioning devices is determined according to the length of the precast wall panel (7).

8. The method according to claim 6 or 7, characterized in that, Unscrew and loosen the set screw (3) of the rotary bracket to make the connecting rod (2) of the rotary bracket slide relatively; rotate the rotary bracket (4) around the Z-axis to a predetermined position; then tighten the set screw (3) of the rotary bracket to fix the rotary bracket (4).

9. The method according to claim 6, 7 or 8, characterized in that Unscrew and loosen the set screw (6) of the movable support plate to make the rod member of the movable support plate (5) slide relatively along the Y-axis; Push the movable support plate (5) so that its support plate surface (501) presses tightly against the outer side of the precast wall panel (7); Then tighten the set screw (6) of the movable support plate to fix the movable support plate (5).

10. The method according to any one of claims 6 to 9, characterized in that, It also includes installing an upper diagonal brace (9) to fix the upper part of the precast wall panel (7).

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