Positioning structure for mounting laminated slab

Abstract

The invention relates to the technical field of laminated plate installation, in particular to a positioning structure for laminated plate installation. Comprising a fixed seat; two pairs of bilaterally symmetrical supporting blocks are fixedly mounted at the lower end of the fixed seat, a positioning mechanism is arranged on the fixed seat, the positioning mechanism comprises two pry bars which are symmetrically mounted at the upper end of the fixed seat front and back and are of an L-shaped structure, the corners of the pry bars are rotationally mounted on the fixed seat through shaft seats and shaft rods, and pull rods are hinged to the left side ends of the pry bars; a connecting rod is fixedly mounted at the end parts of the right sides of the two pinch bars; mechanical traction is achieved by driving the pry bar to rotate, traditional manual prying operation is replaced, and the operation intensity of workers is remarkably reduced; and meanwhile, the width of the abutted seam is accurately controlled through the synergistic effect of the positioning plate and the buffer spring, accurate falling of the laminated slab is achieved by adjusting the rotation angle of the pry bar, and the technical problems that in the laminated slab installation process, the abutted seam is not uniform, the axis elevation deviation exists, and the operation efficiency is low are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of laminated plate installation technology, and in particular to a positioning structure for laminated plate installation. Background Technology

[0002] Composite slabs are horizontal load-bearing components used for floors or roofs in prefabricated buildings. They consist of a precast concrete base slab with reinforced trusses in the factory and an upper concrete layer poured on site, providing a structural bearing surface and a working platform for subsequent construction. During installation, cranes are used to hoist individual composite slabs to the vicinity of the design elevation and keep them suspended. As the crane slowly lowers the composite slabs, workers simultaneously use pry bars or hydraulic jacks to pry or push the edges of the slabs, adjusting their horizontal position, vertical elevation, and the joint spacing with adjacent composite slabs in real time, until the composite slabs are lowered to the floor surface.

[0003] However, the following problems exist in the current process of installing composite slabs: Traditional composite slab installation methods rely on workers to manually pry or push the heavy slabs. The operation process is highly dependent on the workers' experience and skill level, making it difficult to accurately control the amount and direction of displacement. This can easily lead to uneven joint width between adjacent slabs, deviations in the axial position of the slabs, or deviations in elevation that exceed the allowable range. At the same time, the adjustment of each slab requires workers to repeatedly observe, try to pry, and then confirm. In particular, coordinating the relative positions of multiple slabs is time-consuming and inefficient, which seriously slows down the overall construction progress.

[0004] Therefore, the poor accuracy and low efficiency of manual positioning operations, which affect the installation quality of composite slabs, is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the above problems, embodiments of the present invention provide a positioning structure for mounting composite plates to solve the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides a positioning structure for mounting composite plates, including a fixing seat; two pairs of left and right symmetrical support blocks are fixedly installed at the lower end of the fixing seat, and a positioning mechanism is provided on the fixing seat.

[0007] The positioning mechanism includes two L-shaped pry bars symmetrically mounted on the upper end of the fixed base. The corners of the pry bars are rotatably mounted on the fixed base via bearings and shafts. A pull rod is hinged to the left end of the pry bar, and a connecting rod is fixedly mounted to the right end of both pry bars.

[0008] The left side of the fixed base is provided with a positioning plate for abutting against the composite plate to be installed to limit the width of the joint. Multiple guide rods that slide through the fixed base are fixedly installed on the right end of the positioning plate. A buffer spring sleeved on the guide rod is fixedly installed between the right end of the positioning plate and the fixed base. A hydraulic cylinder is fixedly installed on the upper end of the fixed base.

[0009] The mounting base is provided with a fixing part for fixing the mounting base to the installed composite plate, and the tie rod is provided with a connecting part for connecting to the composite plate to be installed.

[0010] As a preferred embodiment, the fixing part includes a limiting plate, with a limiting plate slidably installed between each pair of support blocks. A limiting post is fixedly installed on the opposite surface of each of the two limiting plates, and the two limiting posts are staggered front to back. A pair of uprights are fixedly installed at the upper end of the limiting plate, and a U-shaped groove corresponding to each upright is opened on the fixing seat. After the pair of uprights on the same limiting plate slide through the corresponding U-shaped groove, an L-shaped plate is fixedly installed together.

[0011] As a preferred embodiment, the fixed base is provided with a driving part for driving the limit plate to move. The driving part includes a support frame fixedly installed on the upper end of the fixed base and having an inverted concave structure. A No. 3 hydraulic cylinder is fixedly installed on the upper end of the support frame. The telescopic section of the No. 3 hydraulic cylinder slides through the support frame and is fixedly installed with a lifting plate. A bidirectional hydraulic cylinder is fixedly installed on the lower end of the lifting plate. The two telescopic sections of the bidirectional hydraulic cylinder are respectively fixedly connected to two L-shaped plates.

[0012] As a preferred embodiment, the limiting plate has a through hole corresponding to the limiting post on another limiting plate, and the limiting post is slidably inserted into the corresponding through hole.

[0013] As a preferred embodiment, the upper end of the fixed base is hinged with two symmetrically arranged hydraulic cylinders, and the telescopic section of the hydraulic cylinders is hinged to the connecting rod.

[0014] As a preferred embodiment, the connecting part includes a fixing rod, and the two pull rods are fixedly installed at the ends away from the corresponding pry bar. Two hooks symmetrically mounted on the fixing rod are rotatably mounted in front and behind.

[0015] As a preferred embodiment, the upper end of the support frame is fixedly equipped with two symmetrical lifting rings, and the front and rear ends of the fixed seat are both fixedly equipped with handles.

[0016] As a preferred embodiment, compression blocks are fixedly installed on the opposite surfaces of the two limiting plates, with the compression blocks located between the two limiting posts.

[0017] The above-mentioned one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: First, the present invention achieves mechanical traction by driving the pry bar to rotate, replacing the traditional manual prying operation and significantly reducing the labor intensity of workers; at the same time, it uses the synergistic effect of the positioning plate and the buffer spring to accurately control the joint width, and achieves precise placement of the composite plate by adjusting the rotation angle of the pry bar, effectively solving the technical problems of uneven joints, axial elevation deviation and low operation efficiency during the installation of composite plates.

[0018] Second, this invention uses spring buffers to avoid impact damage during the initial movement of the composite slabs, and switches to rigid contact limit when approaching the set spacing, ensuring that the uniformity of the joint width between adjacent composite slabs meets the construction specifications.

[0019] Third, this invention drives the pry bar to rotate around the shaft by controlling the lifting height of the connecting rod, so that the pull rod can synchronously change the horizontal displacement and tilt angle: during the traction stage, the moving direction and displacement of the composite plate are precisely controlled, and during the placement stage, the tilt posture of the composite plate is adjusted in real time by adjusting the rotation angle of the pry bar, thus eliminating the deviation of the axis position and the elevation deviation.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the composite plate during positioning and installation according to the present invention.

[0023] Figure 2 for Figure 1 A schematic diagram of the structure behind the hidden composite plate.

[0024] Figure 3 This is a three-dimensional structural diagram of the drive unit of the present invention.

[0025] Figure 4 This is a three-dimensional structural diagram of the fixing part of the present invention.

[0026] Figure 5 This is a cross-sectional view of the limiting column and the truss of the present invention.

[0027] Figure 6 This is a cross-sectional view of the hook and truss of the present invention.

[0028] Reference numerals: 10, fixed base; 100, handle; 11, support block; 2, positioning mechanism; 20, pry bar; 200, hydraulic cylinder No. 2; 21, pull rod; 22, connecting rod; 23, positioning plate; 24, buffer spring; 25, hydraulic cylinder No. 1; 3, fixed part; 30, limit plate; 300, extrusion block; 31, limit post; 32, column; 33, L-shaped plate; 4, drive part; 40, support frame; 400, lifting ring; 41, hydraulic cylinder No. 3; 42, lifting plate; 43, bidirectional hydraulic cylinder; 5, connecting part; 50, fixed rod; 51, hook. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] like Figure 1 and Figure 2 As shown, a positioning structure for installing composite plates includes a fixing base 10; two pairs of left and right symmetrical support blocks 11 are fixedly installed at the lower end of the fixing base 10, and a positioning mechanism 2 is provided at the upper end of the fixing base 10.

[0031] like Figure 1 and Figure 2 As shown, the positioning mechanism 2 includes two L-shaped pry bars 20 symmetrically mounted on the upper end of the fixed base 10. The corners of the pry bars 20 are rotatably mounted on the fixed base 10 via a bearing and a shaft. A pull rod 21 is hinged to the left end of the pry bar 20, and a connecting rod 22 is fixedly mounted on the right end of the two pry bars 20.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, a positioning plate 23 is provided on the left side of the fixed base 10. Multiple guide rods that slide through the fixed base 10 are fixedly installed on the right end of the positioning plate 23. Buffer springs 24 corresponding to the guide rods are fixedly installed between the right end of the positioning plate 23 and the fixed base 10. The buffer springs 24 are sleeved on the corresponding guide rods. A hydraulic cylinder 25 is fixedly installed on the upper end of the fixed base 10.

[0033] like Figure 1 and Figure 2 As shown, the fixed base 10 is provided with a fixing part 3 for cooperating with the truss to fix the fixed base 10, and the tie rod 21 is provided with a connecting part 5 for connecting with the truss.

[0034] like Figure 1 , Figure 2 and Figure 3 As shown, the upper end of the fixed base 10 is hinged with two symmetrical hydraulic cylinders 200, and the telescopic section of the hydraulic cylinder 200 is hinged to the connecting rod 22.

[0035] like Figures 1 to 3 As shown, in specific operations, a row of composite slabs is first installed sequentially from front to back using traditional positioning methods. Then, a crane is used to lift the positioning structure for installing the composite slabs to the corresponding position on the installed composite slabs. The approximate position of the positioning structure for installing the composite slabs is then manually adjusted. Alternatively, the positioning structure for installing the composite slabs can be manually lifted and placed to the approximate position on the composite slabs. Then, the fixing part 3 cooperates with the truss on the corresponding composite slab to fix the positioning structure for installing the composite slabs in that position, that is, the middle of the leftmost truss reinforcement of the composite slab. At this time, the positioning plate 23 is located on the left side of the composite slab.

[0036] Then, the crane lifts the composite slab to be installed on the left side of the composite slab to the left side of the positioning plate 23, and lowers it to a position close to but not touching the floor. Then, the tie rod 21 is rotated so that the connecting part 5 on the tie rod 21 connects with the rightmost truss on the left-side composite slab to be installed. Then, the second hydraulic cylinder 200 drives the right end of the pry bar 20 downwards via the connecting rod 22, while the left end of the pry bar 20 rotates upwards to pull the tie rod 21. The tie rod 21 then pulls the composite slab to be installed to the right via the connecting part 5. Initially, the distance between the two composite slabs is large, and during the pulling process... The swaying of the composite slab will impact the positioning plate 23. A buffer spring 24 is provided on the right side of the positioning plate 23 to prevent the positioning plate 23 from rigidly blocking the composite slab, which would easily damage the positioning plate 23. When the distance between the composite slabs is close to the set value, the first hydraulic cylinder 25 pushes the positioning plate 23 to the left to the set position. At this time, the positioning plate 23 will make rigid contact with the composite slab to ensure that the distance between the two composite slabs is within the specified range. Then, with the release of the crane and the up and down rotation of the pry bar 20 controlled by the second hydraulic cylinder 200, the composite slab is accurately placed on the floor.

[0037] Then, the composite slabs are manually lifted and placed into their corresponding positions using the positioning structure, or they are hoisted onto the left-side composite slabs using a crane, and the composite slabs are installed in sequence according to the above operations.

[0038] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the fixing part 3 includes a limiting plate 30. The limiting plate 30 is slidably installed between each pair of support blocks 11. A limiting post 31 is fixedly installed on the opposite surface of each of the two limiting plates 30, and the two limiting posts 31 are staggered front and back. A pair of uprights 32 are fixedly installed on the upper end of the limiting plate 30. The fixing seat 10 is provided with U-shaped grooves that correspond one-to-one with the uprights 32. After the pair of uprights 32 on the same limiting plate 30 slide through the corresponding U-shaped grooves, they are jointly fixedly installed with an L-shaped plate 33.

[0039] like Figure 2 and Figure 3 As shown, the fixed base 10 is provided with a driving part 4 for driving the limit plate 30 to move. The driving part 4 includes a support frame 40 fixedly installed on the upper end of the fixed base 10 and having an inverted concave structure. A third hydraulic cylinder 41 is fixedly installed on the upper end of the support frame 40. The telescopic section of the third hydraulic cylinder 41 slides through the support frame 40 and is fixedly installed on a lifting plate 42. A bidirectional hydraulic cylinder 43 is fixedly installed on the lower end of the lifting plate 42. The two telescopic sections of the bidirectional hydraulic cylinder 43 are respectively fixedly connected to two L-shaped plates 33.

[0040] like Figure 4 As shown, each of the two limiting plates 30 has a pressing block 300 fixedly installed on its opposite side, and the pressing block 300 is located between the two limiting posts 31.

[0041] like Figure 4 As shown, the limiting plate 30 has a through hole corresponding to the limiting post 31 on another limiting plate 30, and the limiting post 31 slides into the corresponding through hole.

[0042] like Figures 2 to 4 As shown, during actual operation, the bidirectional hydraulic cylinder 43 pulls the two limiting plates 30 closer to each other. The limiting plates 30 then press the truss through the pressing block 300 to restrict the left and right movement of the fixed seat 10. At the same time, the limiting column 31 passes through the truss into the corresponding through hole. Then, the third hydraulic cylinder 41 pulls the lifting plate 42 upward. The lifting plate 42 then pulls the limiting plate 30 upward through the bidirectional hydraulic cylinder 43, the L-shaped plate 33, and the column 32. The limiting plate 30 then drives the limiting column 31 to contact the truss, thereby straightening the fixed seat 10. The fixed seat 10 contacts the upper surface of the composite plate through the support block 11. Thus, the above operations restrict the vertical and horizontal displacement of the fixed seat 10.

[0043] After a composite slab is installed, hydraulic cylinder 41 pushes lifting plate 42 down. Lifting plate 42 then pushes limiting plate 30 down via bidirectional hydraulic cylinder 43, L-shaped plate 33 and column 32. Limiting plate 30 then pushes limiting column 31 to not contact the truss. Afterwards, bidirectional hydraulic cylinder 43 pushes the two limiting plates 30 away from each other via L-shaped plate 33 and column 32. Limiting plate 30 then drives limiting column 31 to completely detach from the truss. At this time, the positioning structure for installing composite slabs can be moved to the installed composite slab to continue the sequential installation of composite slabs.

[0044] like Figure 1 , Figure 3 and Figure 6 As shown, the connecting part 5 includes a fixing rod 50. The two pull rods 21 are fixedly installed on the ends away from the corresponding pry bar 20. Two hooks 51 are rotatably installed on the fixing rod 50.

[0045] like Figure 1 , Figure 2 and Figure 3 As shown, two symmetrical lifting rings 400 are fixedly installed at the upper end of the support frame 40, and handles 100 are fixedly installed at both the front and rear ends of the fixed seat 10.

[0046] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, during the actual operation, the hook 51 is manually hooked onto the truss of the composite slab to be installed. Then, as the pry bar 20 rotates, the pry bar 20 pulls the composite slab to be installed through the pull rod 21 and the hook 51. During the pulling process, the hook 51 abuts against the truss to limit the forward and backward displacement of the composite slab to be installed. Moreover, the hook 51 will remain in a natural drooping state under its own weight. Therefore, the hook 51 will not detach from the truss without manual intervention, so the hook 51 can always maintain effective traction on the composite slab. Afterward, the crane slowly lowers the composite slab, and the second hydraulic cylinder 200 adjusts the rotation of the pry bar 20 to control the tilt of the falling composite slab, so that it is accurately placed on the floor to complete the installation.

[0047] After installation, the fixing part 3 releases the fixing of the fixing seat 10, then rotates the pry bar 20 to reset, and the pull rod 21 loosens. At this time, rotate the hook 51 to disengage from the truss, and then connect the crane hook and the lifting ring 400 to lift the positioning structure for the composite plate installation, or manually lift and move the positioning structure for the composite plate installation to the next composite plate through the handle 100 to continue the installation of the composite plate.

[0048] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0049] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A positioning structure for mounting composite slabs, comprising a fixing base; characterized in that: Two pairs of symmetrical support blocks are fixedly installed at the lower end of the fixed base, and a positioning mechanism is provided on the fixed base; The positioning mechanism includes two L-shaped pry bars that are symmetrically mounted on the upper end of the fixed base. The corners of the pry bars are rotatably mounted on the fixed base via a bearing and a shaft. A pull rod is hinged to the left end of the pry bar, and a connecting rod is fixedly mounted to the right end of the two pry bars. The left side of the fixed base is provided with a positioning plate for abutting against the composite plate to be installed to limit the width of the joint. Multiple guide rods that slide through the fixed base are fixedly installed on the right end of the positioning plate. A buffer spring sleeved on the guide rod is fixedly installed between the right end of the positioning plate and the fixed base. A hydraulic cylinder is fixedly installed on the upper end of the fixed base. The mounting base is provided with a fixing part for fixing the mounting base to the installed composite plate, and the tie rod is provided with a connecting part for connecting to the composite plate to be installed.

2. The positioning structure for installing composite plates according to claim 1, characterized in that: The fixing part includes a limiting plate. A limiting plate is slidably installed between each pair of support blocks. A limiting post is fixedly installed on the opposite surface of each of the two limiting plates, and the two limiting posts are staggered front and back. A pair of uprights are fixedly installed at the upper end of the limiting plate. A U-shaped groove corresponding to the uprights is opened on the fixing seat. A pair of uprights on the same limiting plate slide through the corresponding U-shaped groove and are fixedly installed together with an L-shaped plate.

3. The positioning structure for installing composite plates according to claim 2, characterized in that: The fixed base is provided with a driving part for driving the limit plate to move. The driving part includes a support frame fixedly installed on the upper end of the fixed base and having an inverted concave structure. A No. 3 hydraulic cylinder is fixedly installed on the upper end of the support frame. The telescopic section of the No. 3 hydraulic cylinder slides through the support frame and is fixedly installed on a lifting plate. A bidirectional hydraulic cylinder is fixedly installed on the lower end of the lifting plate. The two telescopic sections of the bidirectional hydraulic cylinder are respectively fixedly connected to two L-shaped plates.

4. The positioning structure for installing composite plates according to claim 2, characterized in that: The limiting plate has a through hole corresponding to the limiting post on another limiting plate, and the limiting post slides into the corresponding through hole.

5. The positioning structure for installing composite plates according to claim 1, characterized in that: The upper end of the fixed base is hinged to two symmetrical hydraulic cylinders, and the telescopic section of the hydraulic cylinders is hinged to the connecting rod.

6. The positioning structure for installing composite plates according to claim 1, characterized in that: The connecting part includes a fixing rod, and the two pull rods are fixedly installed at the ends away from the corresponding pry bar. Two hooks symmetrically mounted on the fixing rod are rotatably mounted in front and behind.

7. The positioning structure for installing composite plates according to claim 3, characterized in that: The upper end of the support frame is fixedly equipped with two symmetrical lifting rings, and the front and rear ends of the fixed base are both fixedly equipped with handles.

8. A positioning structure for installing composite plates according to claim 2, characterized in that: An extrusion block is fixedly installed on the opposite side of the two limiting plates, and the extrusion block is located between the two limiting posts.

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