Positioning mechanism and positioning method for embedded channel steel in cast-in-place concrete base wall of prefabricated cabin
By using a positioning mechanism composed of a vertical lifting screw and an L-shaped boom in the cast-in-situ concrete base wall of the prefabricated cabin, the problem of inaccurate channel steel positioning was solved, achieving accurate positioning of the channel steel and smooth installation of the equipment.
Patent Information
- Application Number
- CN202511170731.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2025-09-26
AI Technical Summary
The levelness and positioning of the channel steel in the base of the cast-in-place concrete wall were inaccurate, making equipment installation difficult.
The positioning mechanism of the cast-in-situ concrete base wall of the prefabricated cabin is adopted, and the horizontality and centering of the channel steel can be conveniently adjusted through the combination of vertical lifting screws and L-shaped booms, including the combined use of horizontal support nuts, horizontal support rods, lifting connection blocks and cantilever screws.
The accurate positioning of the channel steel is achieved, ensuring the smooth docking and connection of subsequent equipment, reducing the trouble and effort of positioning, and improving construction efficiency.
Smart Images
Figure CN120701148A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a cast-in-situ concrete base for equipment, and in particular to a positioning mechanism and a positioning method for embedded channel steel in a cast-in-situ concrete base for prefabricated cabin equipment. Background Art
[0002] The foundation base of some equipment is a cast-in-place concrete wall base, and channel steel is embedded at the top of the cast-in-place concrete wall foundation base. These equipment are connected to the embedded channel steel by welding; therefore, the horizontality of the embedded channel steel in the cast-in-place concrete and the accuracy of the embedded position are directly related to whether the subsequent equipment installation can proceed smoothly; the construction process of the cast-in-place concrete wall base is: first tie the wall reinforcement in the wall base, then support the formwork on both sides of the wall, and then position and fix the top channel steel above the wall reinforcement, and finally, pour the wall base concrete; in the above-mentioned channel steel positioning link, due to the lack of reliable positioning means, the horizontality and center positioning of the channel steel often deviate, which makes it difficult to connect the subsequent equipment. How to achieve accurate positioning of the channel steel before pouring concrete is a problem that needs to be solved on site. Summary of the Invention
[0003] The present invention provides a positioning mechanism and method for pre-embedded channel steel in a cast-in-situ concrete base wall of a prefabricated cabin, solving the technical problem of how to accurately position the channel steel before concrete pouring.
[0004] The present invention solves the above technical problems through the following technical solutions: A prefabricated cabin cast-in-situ concrete base wall embedded channel steel positioning mechanism, comprising a left side formwork of the cast-in-situ concrete base wall and a right side formwork of the cast-in-situ concrete base wall, a tied wall reinforcement is arranged between the left and right formworks, a pre-embedded channel steel is arranged at the top of the wall reinforcement, a horizontal support nut with a vertical lifting screw is arranged just above the pre-embedded channel steel, a left horizontal support rod is fixedly connected to the left outer side elevation of the horizontal support nut, a right horizontal support rod is fixedly connected to the right outer side elevation of the horizontal support nut, the left end of the left horizontal support rod is arranged on the top surface of the left formwork, and the right end of the right horizontal support rod is arranged on the right On the top surface of the template; a vertical lifting screw is threaded in the horizontal support nut, a rotating handwheel is provided at the top of the vertical lifting screw, and the bottom end of the vertical lifting screw is movably connected to a lifting connecting block; a left horizontal cantilever screw is connected to the left end vertical surface of the lifting connecting block, and a left L-shaped boom is movably suspended on the left horizontal cantilever screw, and a hook at the bottom end of the left L-shaped boom is connected to the bottom end surface of the left vertical plate of the embedded channel steel; a right horizontal cantilever screw is connected to the right end vertical surface of the lifting connecting block, and a right L-shaped boom is movably suspended on the right horizontal cantilever screw, and a hook at the bottom end of the right L-shaped boom is connected to the bottom end surface of the right vertical plate of the embedded channel steel.
[0005] A sphere is provided at the bottom end of the vertical lifting screw, and the sphere is movably sleeved in the spherical cavity in the lifting connecting block. A top through hole connected to the spherical cavity is provided on the top surface of the lifting connecting block. The vertical lifting screw passes through the top through hole and is connected to the sphere, thereby realizing the movable connection between the vertical lifting screw and the lifting connecting block.
[0006] A first locking nut is connected to the left horizontal cantilever screw on the left side of the left L-shaped arm, and a second locking nut is connected to the left horizontal cantilever screw on the right side of the left L-shaped arm; a third locking nut is screwed onto the right horizontal cantilever screw on the left side of the right L-shaped arm, and a fourth locking nut is screwed onto the right horizontal cantilever screw on the right side of the right L-shaped arm.
[0007] A method for positioning embedded channel steel using an embedded channel steel positioning mechanism in a cast-in-situ concrete base wall of a prefabricated cabin, characterized by the following steps: The first step is to place the embedded channel steel on the top of the steel bars in the wall along the direction of the precast wall; between the top surface of the left formwork and the top surface of the right formwork, the left horizontal support rod and the right horizontal support rod are arranged at intervals, and a horizontal support nut is connected between each group of the left horizontal support rod and the right horizontal support rod, and a vertical lifting screw is screwed in the horizontal support nut, and a lifting connection block is movably connected to the lower end of the vertical lifting screw, and the left horizontal cantilever screw, the right horizontal cantilever screw, the left L-shaped boom and the right L-shaped boom are connected to the lifting connection block, and the bottom hook of the left L-shaped boom is hooked to the lower bottom surface of the left vertical plate of the embedded channel steel, and the bottom hook of the right L-shaped boom is hooked to the lower bottom surface of the right vertical plate of the embedded channel steel; the structure of the above-mentioned adjustment mechanism of each group is exactly the same; Step 2: Adjust the connection position of the left and right L-shaped booms in each set of adjustment mechanisms so that the distance between the left side of the embedded channel steel and the left side formwork of the cast-in-place concrete base wall is equal to the distance between the right side of the embedded channel steel and the right side formwork of the cast-in-place concrete base wall; The third step is to place the spirit level on the top surface of the embedded channel steel, and adjust the vertical lifting screws in each group of adjustment mechanisms and each L-shaped boom while observing the horizontal bubble in the spirit level to adjust the top surface of the embedded channel steel to a horizontal level; Step 4: Weld the embedded channel steel to the top of the steel bars in the wall; Step 5: Remove each set of adjustment mechanisms.
[0008] The present invention realizes convenient adjustment of the horizontality and centering of the embedded channel steel by adjusting each vertical lifting screw and dynamically adjusting the L-shaped boom, overcomes the troublesome and labor-intensive positioning of the embedded channel steel, and ensures the smooth docking connection of the subsequent embedded channel steel and the prefabricated cabin. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG1 is a schematic structural diagram of the present invention; FIG2 is a schematic structural diagram of the present invention after the right side template 2 is removed; FIG3 is a schematic structural diagram of the adjustment mechanism of the present invention. DETAILED DESCRIPTION
[0010] The present invention is described in detail below with reference to the accompanying drawings: A pre-embedded channel steel positioning mechanism in a cast-in-situ concrete base wall of a prefabricated cabin, wherein the prefabricated cabin is fixedly connected and welded to the pre-embedded channel steel in the pre-cast cast-in-situ concrete base wall, the pre-cast cast-in-situ concrete base wall comprises a left side formwork 1 of the cast-in-situ concrete base wall and a right side formwork 2 of the cast-in-situ concrete base wall, a tied wall reinforcement 3 is arranged between the left side formwork 1 and the right side formwork 2, an embedded channel steel 4 is arranged at the top of the wall reinforcement 3, a horizontal support nut 5 with a vertical lifting screw is arranged just above the embedded channel steel 4, a left horizontal support rod 7 is fixedly connected to the left outer side elevation of the horizontal support nut 5, and a right horizontal support rod 8 is fixedly connected to the right outer side elevation of the horizontal support nut 5, the left horizontal support rod 7, the horizontal support nut 5 and the right horizontal support rod 8 form an "I"-shaped crossbar, the left end of the left horizontal support rod 7 is arranged on the top surface of the left formwork 1, and the right end of the right horizontal support rod 8 is arranged on the top surface of the right formwork 2, that is, the "I"-shaped crossbar is movably overlapped at the top of the two formworks; A vertical lifting screw rod 9 is screwed, and a rotating hand wheel 6 is provided at the top of the vertical lifting screw rod 9. The bottom end of the vertical lifting screw rod 9 is movably connected with a lifting connection block 10; when the rotating hand wheel 6 is rotated clockwise, the vertical lifting screw rod 9 is lifted upward, and when the rotating hand wheel 6 is rotated counterclockwise, the vertical lifting screw rod 9 drops downward, thereby driving the lifting connection block 10 to rise and fall. A left horizontal cantilever screw rod 14 is connected to the left end vertical surface of the lifting connection block 10, and a left L-shaped lifting arm 16 is movably suspended on the left horizontal cantilever screw rod 14. The left L The hook at the bottom end of the left-shaped boom 16 is connected to the bottom end surface of the left vertical plate of the embedded channel steel 4; the right horizontal cantilever screw 15 is connected to the right end vertical surface of the lifting connecting block 10, and the right L-shaped boom 17 is movably connected to the right horizontal cantilever screw 15, and the hook at the bottom end of the right L-shaped boom 17 is connected to the bottom end surface of the right vertical plate of the embedded channel steel 4; by rotating the rotating handwheel 6, the synchronous lifting and lowering of the left L-shaped boom 16 and the right L-shaped boom 17 is achieved, thereby realizing the lifting and lowering of the embedded channel steel 4 and completing the adjustment of the horizontality of the embedded channel steel 4.
[0011] A sphere 13 is provided at the bottom end of the vertical lifting screw 9, and the sphere 13 is movably sleeved in the spherical cavity 12 in the lifting connection block 10. A top through hole 11 connected to the spherical cavity 12 is provided on the top surface of the lifting connection block 10. The vertical lifting screw 9 passes through the top through hole 11 and is connected with the sphere 13, thereby realizing the movable connection between the vertical lifting screw 9 and the lifting connection block 10; when the vertical lifting screw 9 is rotated, the sphere 13 rotates together with the vertical lifting screw 9 in the spherical cavity 12, and drives the lifting connection block 10 to rise and fall.
[0012] A first locking nut 18 is connected to the left horizontal cantilever screw 14 on the left side of the left L-shaped boom 16, and a second locking nut 19 is connected to the left horizontal cantilever screw 14 on the right side of the left L-shaped boom 16; a third locking nut 20 is screwed on the right horizontal cantilever screw 15 on the left side of the right L-shaped boom 17, and a fourth locking nut 21 is screwed on the right horizontal cantilever screw 15 on the right side of the right L-shaped boom 17; a through hole for passing through the left horizontal cantilever screw 14 is provided at the upper end of the left L-shaped boom 16, and the left L-shaped boom 16 can swing around the left horizontal cantilever screw 14, and a through hole for passing through the right horizontal cantilever screw 15 is provided at the upper end of the right L-shaped boom 17, and the right L-shaped boom 17 can swing around the right horizontal cantilever screw 15, and the swing of the L-shaped boom can be used to fine-tune the height of the embedded channel steel 4 at the connection. After fine-tuning is in place, its position is locked by the locking nut.
[0013] A method for positioning embedded channel steel using an embedded channel steel positioning mechanism in a cast-in-situ concrete base wall of a prefabricated cabin, characterized by the following steps: The first step is to place the embedded channel steel 4 on the top of the steel bar 3 in the wall along the direction of the precast wall; between the top surface of the left formwork 1 and the top surface of the right formwork 2, the left horizontal support rod 7 and the right horizontal support rod 8 are arranged at intervals, and a horizontal support nut 5 is connected between each group of the left horizontal support rod 7 and the right horizontal support rod 8, and a vertical lifting screw 9 is screwed in the horizontal support nut 5. A lifting connection block 10 is movably suspended at the lower end of the vertical lifting screw 9, and a left horizontal cantilever screw 14, a right horizontal cantilever screw 15, a left L-shaped lifting arm 16 and a right L-shaped lifting arm 17 are connected to the lifting connection block 10, and the bottom end hook of the left L-shaped lifting arm 16 is hooked on the lower bottom surface of the left vertical plate of the embedded channel steel 4, and the bottom end hook of the right L-shaped lifting arm 17 is hooked on the lower bottom surface of the right vertical plate of the embedded channel steel 4; the structure of the above-mentioned adjustment mechanism of each group is exactly the same; Step 2: By adjusting the hanging positions of the left L-shaped hanging arm 16 and the right L-shaped hanging arm 17 in each set of adjustment mechanisms, the distance between the left side of the embedded channel steel 4 and the left side formwork 1 of the cast-in-place concrete base wall is equal to the distance between the right side of the embedded channel steel 4 and the right side formwork 2 of the cast-in-place concrete base wall; The third step is to place the spirit level on the top surface of the embedded channel steel 4, and adjust the vertical lifting screw 9 in each group of adjustment mechanisms and each L-shaped boom while observing the horizontal bubble in the spirit level to adjust the top surface of the embedded channel steel 4 to a horizontal level; Step 4: Weld the embedded channel steel 4 to the top of the wall steel bar 3; Step 5: Dismantle each set of adjustment mechanisms. The components of the adjustment mechanisms can be reused.
Claims
1. A pre-buried channel steel positioning mechanism in a cast-in-situ concrete base wall of a prefabricated cabin, comprising a left side formwork (1) of the cast-in-situ concrete base wall and a right side formwork (2) of the cast-in-situ concrete base wall, wherein tied wall reinforcement (3) is provided between the left side formwork (1) and the right side formwork (2), and a pre-buried channel steel (4) is provided at the top of the wall reinforcement (3), characterized in that: A horizontal support nut (5) for a vertical lifting screw is provided just above the embedded channel steel (4). A left horizontal support rod (7) is fixedly connected to the left outer side elevation of the horizontal support nut (5). A right horizontal support rod (8) is fixedly connected to the right outer side elevation of the horizontal support nut (5). The left end of the left horizontal support rod (7) is provided on the top surface of the left template (1), and the right end of the right horizontal support rod (8) is provided on the top surface of the right template (2). A vertical lifting screw rod (9) is screwed into the horizontal support nut (5). A rotating hand wheel (6) is provided at the top of the vertical lifting screw rod (9). The vertical lifting screw rod (9) The bottom end of the lifting connection block (10) is movably connected; a left horizontal cantilever screw rod (14) is connected to the left end vertical surface of the lifting connection block (10), and a left L-shaped suspension arm (16) is movably suspended on the left horizontal cantilever screw rod (14), and a hook at the bottom end of the left L-shaped suspension arm (16) is connected to the bottom end surface of the left vertical plate of the embedded channel steel (4); a right horizontal cantilever screw rod (15) is connected to the right end vertical surface of the lifting connection block (10), and a right L-shaped suspension arm (17) is movably suspended on the right horizontal cantilever screw rod (15), and a hook at the bottom end of the right L-shaped suspension arm (17) is connected to the bottom end surface of the right vertical plate of the embedded channel steel (4).
2. The embedded channel steel positioning mechanism in the cast-in-situ concrete base wall of a prefabricated cabin according to claim 1 is characterized in that: A sphere (13) is provided at the bottom end of the vertical lifting screw (9), and the sphere (13) is movably sleeved in the spherical cavity (12) in the lifting connection block (10). A top through hole (11) communicating with the spherical cavity (12) is provided on the top surface of the lifting connection block (10). The vertical lifting screw (9) passes through the top through hole (11) and is connected to the sphere (13), thereby realizing the movable connection between the vertical lifting screw (9) and the lifting connection block (10).
3. The embedded channel steel positioning mechanism in the cast-in-situ concrete base wall of a prefabricated cabin according to claim 1 or 2, characterized in that: A first locking nut (18) is connected to the left horizontal cantilever screw rod (14) on the left side of the left L-shaped cantilever arm (16), and a second locking nut (19) is connected to the left horizontal cantilever screw rod (14) on the right side of the left L-shaped cantilever arm (16); a third locking nut (20) is screwed to the right horizontal cantilever screw rod (15) on the left side of the right L-shaped cantilever arm (17), and a fourth locking nut (21) is screwed to the right horizontal cantilever screw rod (15) on the right side of the right L-shaped cantilever arm (17).
4. A method for positioning embedded channel steel by means of an embedded channel steel positioning mechanism in a cast-in-situ concrete base wall of a prefabricated cabin as claimed in claim 3, characterized by the following steps: The first step is to place the embedded channel steel (4) on the top of the steel bar (3) in the wall along the direction of the precast wall; between the top surface of the left template (1) and the top surface of the right template (2), the left horizontal support rod (7) and the right horizontal support rod (8) are arranged at intervals, and a horizontal support nut (5) is connected between each set of the left horizontal support rod (7) and the right horizontal support rod (8), and a vertical lifting screw (9) is screwed into the horizontal support nut (5). At the bottom of the vertical lifting screw (9), a screw is screwed in the screw. The ends are movably connected with a lifting connection block (10), and the lifting connection block (10) is connected with a left horizontal cantilever screw (14), a right horizontal cantilever screw (15), a left L-shaped lifting arm (16) and a right L-shaped lifting arm (17), the bottom hook of the left L-shaped lifting arm (16) is hooked on the lower bottom surface of the left vertical plate of the embedded channel steel (4), and the bottom hook of the right L-shaped lifting arm (17) is hooked on the lower bottom surface of the right vertical plate of the embedded channel steel (4); the structure of the above-mentioned adjustment mechanism of each group is exactly the same; Step 2: By adjusting the hanging positions of the left L-shaped hanging arm (16) and the right L-shaped hanging arm (17) in each set of adjustment mechanisms, the distance between the left side elevation of the embedded channel steel (4) and the left side template (1) of the cast-in-place concrete base wall is equal to the distance between the right side elevation of the embedded channel steel (4) and the right side template (2) of the cast-in-place concrete base wall; The third step is to place the level on the top surface of the embedded channel steel (4), and adjust the vertical lifting screw (9) in each group of adjustment mechanisms and each L-shaped boom while observing the horizontal bubble in the level to adjust the top surface of the embedded channel steel (4) to a horizontal level; Step 4: Weld the embedded channel steel (4) and the top of the wall steel bar (3) together; Step 5: Remove each set of adjustment mechanisms.