Building floor negative corner leakproofing slurry aluminum alloy formwork
By setting components such as bolt rods, nut blocks, and L-shaped plates in the aluminum alloy formwork, the compression at the inside corner of the floor slab is achieved, which solves the problem of grout leakage caused by loose splicing of the formwork at the inside corner of the floor slab, and improves the connection stability and structural strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO WANRUI NEW CONSTR ENG CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-07
Smart Images

Figure CN224468789U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building formwork technology, and in particular relates to aluminum alloy formwork for preventing grout leakage at the inside corner of building floor slabs. Background Technology
[0002] Inside and outside corners are part of building construction. Inside corners refer to recessed corners, such as the angle between the top surface and the surrounding walls; outside corners refer to protruding corners, such as the angle formed by two walls at a corner in a corridor. Inside and outside corners are mostly 90 degrees. When inspecting inside and outside corners of walls, it is required that the edges of the inside and outside corners be perpendicular and parallel to the main body of the building, and that the corners be straight and square. During the construction of cast-in-place vertical concrete components, the inside and outside corners of walls and columns are often not square or straight. The construction of inside and outside corners by formwork involves setting multiple formwork pieces on the concrete construction surface, assembling the formwork pieces to form angle iron-like components that match the shape of the inside and outside corners.
[0003] The use of aluminum alloy formwork to splice the corners of floor slabs can lead to grout leakage because the gaps between the bottom formwork of the floor slab and the side formwork of the wall are not tight. Therefore, a type of aluminum alloy formwork to prevent grout leakage at the corners of building floor slabs is needed. Extrusion blocks can be added between the horizontal and side aluminum alloy plates at the corners of the floor slabs to make the horizontal and side plates fit more tightly, thereby preventing grout leakage during pouring. Utility Model Content
[0004] The purpose of this utility model is to provide an aluminum alloy template for preventing grout leakage at the inside corner of a building floor slab. An extrusion block is added between the aluminum alloy horizontal plate and the side plate at the inside corner of the floor slab, so that the horizontal plate and the side plate fit more tightly, thereby preventing grout leakage during pouring, thus solving the technical problems mentioned in the background art.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An aluminum alloy template for preventing grout leakage at the inside corner of a building floor slab, comprising strips and clamping blocks: a bolt rod is provided through the strips and clamping blocks, a nut block is threadedly connected to the surface of the bolt rod, a template back rib is provided between the strips and clamping blocks, an aluminum alloy template is fixedly connected to the surface of the template back rib, an L-shaped plate is welded to the surface of the strips, a base plate is welded to the surface of the L-shaped plate, an ear block is integrally formed on the surface of the base plate, a threaded rod is rotatably connected to the inner wall of the ear block, a threaded sleeve is threadedly connected to the surface of the threaded rod, an extrusion block is fixedly connected to the end of the threaded sleeve, a slide rail is fixedly connected to the surface of the base plate by bolts, a slider is slidably connected to the surface of the slide rail, and the slider is fixedly connected to the threaded sleeve.
[0006] Preferably, a washer is fitted on the surface of the bolt rod, and the washer is an elastic washer.
[0007] Preferably, the surface of the L-shaped plate is welded with a diagonal bar, and a connecting block is welded between the diagonal bar and the L-shaped plate.
[0008] Preferably, a handle is fixedly connected to the end of the threaded rod.
[0009] Preferably, the extrusion block is an L-shaped aluminum alloy block.
[0010] The beneficial effects of this utility model are:
[0011] This utility model fixes the strip plate to the surface of the template back rib, so that the strip plate is fixed to the base plate by the L-shaped plate. Then, by rotating the threaded rod, the threaded sleeve is moved, so that the threaded sleeve drives the extrusion block to extrude the template back rib at the inside corner of the floor slab. This achieves the purpose of adding an extrusion block between the aluminum alloy horizontal plate and the side plate at the inside corner of the floor slab, so that the horizontal plate and the side plate fit more tightly, thereby preventing grout leakage during pouring.
[0012] 2. By setting the washer, this utility model increases the friction on the surface of the nut block, preventing the nut block from loosening and coming off due to external vibration, thereby improving the stability of the connection between the bolt rod and the nut block;
[0013] 3. This utility model strengthens the structural strength of the L-shaped plate by using diagonal braces and connecting blocks in combination, thus preventing deformation of the L-shaped plate.
[0014] 4. By setting up the handle block, this utility model increases the force-bearing area at the end of the threaded rod, avoiding the slippage that may occur when holding the threaded rod directly, thereby improving the firmness of holding the threaded rod. Attached Figure Description
[0015] in:
[0016] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0017] Figure 2 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle;
[0018] Figure 3 This is a three-dimensional schematic diagram of a threaded rod and a threaded sleeve according to an embodiment of the present invention. Detailed Implementation
[0019] In the following description, embodiments of the aluminum alloy formwork for preventing grout leakage at the inside corner of building floor slabs according to the present invention will be presented with reference to the accompanying drawings. Example 1
[0020] Figure 1-3This invention illustrates an embodiment of an aluminum alloy formwork for preventing grout leakage at the internal corner of a building floor slab. It includes a strip 1 and a clamping block 2. A bolt rod 3 is threaded through the strip 1 and the clamping block 2, and a nut block 4 is threaded onto the surface of the bolt rod 3. A template back rib 5 is also provided between the strip 1 and the clamping block 2. A washer 6, an elastic washer, is fitted onto the surface of the bolt rod 3. The washer 6 increases the friction on the surface of the nut block 4, preventing it from loosening or coming off due to external vibration, thus improving the stability of the connection between the bolt rod 3 and the nut block 4. An aluminum alloy template 8 is fixedly connected to the surface of the template back rib 5. An L-shaped plate 7 is welded to the surface of the strip 1. A diagonal rod 9 is welded to the surface of L-shaped plate 7. A connecting block 18 is welded together with the diagonal rod 9 and the connecting block 18. The structural strength of L-shaped plate 7 is reinforced by the cooperation of the diagonal rod 9 and the connecting block 18 to prevent deformation of L-shaped plate 7. A base plate 10 is welded to the surface of L-shaped plate 7. An ear block 11 is integrally formed on the surface of base plate 10. A threaded rod 12 is rotatably connected to the inner wall of ear block 11. A threaded sleeve 13 is threadedly connected to the surface of threaded rod 12. An extrusion block 14 is fixedly connected to the end of threaded sleeve 13. A slide rail 16 is fixedly connected to the surface of base plate 10 by bolts. A slider 17 is slidably connected to the surface of slide rail 16. The slider 17 is fixedly connected to threaded sleeve 13. Example 2
[0021] Figure 1-3 This invention illustrates an embodiment of an aluminum alloy formwork for preventing grout leakage at the inner corner of a building floor slab. It includes a strip 1 and a clamping block 2. A bolt rod 3 is threaded through the strip 1 and the clamping block 2, and a nut block 4 is threaded onto the surface of the bolt rod 3. A template back rib 5 is also provided between the strip 1 and the clamping block 2. An aluminum alloy template 8 is fixedly connected to the surface of the template back rib 5. An L-shaped plate 7 is welded to the surface of the strip 1, and a base plate 10 is welded to the surface of the L-shaped plate 7. An ear block 11 is integrally formed on the surface of the base plate 10, and a threaded rod 12 is rotatably connected to the inner wall of the ear block 11. A threaded sleeve 13 is connected to the surface threaded connection. An extrusion block 14 is fixedly connected to the end of the threaded sleeve 13. A handle block 15 is fixedly connected to the end of the threaded rod 12. By setting the handle block 15, the force-bearing area at the end of the threaded rod 12 is increased, avoiding the slippage of the threaded rod 12 when held directly, thereby improving the firmness when holding the threaded rod 12. A slide rail 16 is fixedly connected to the surface of the base plate 10 by bolts. A slider 17 is slidably connected to the surface of the slide rail 16. The slider 17 is fixedly connected to the threaded sleeve 13. The extrusion block 14 is an L-shaped aluminum alloy block.
[0022] Working principle: When using this utility model, the user fixes the strip 1 to the surface of the template back rib 5 by using the clamping block 2, bolt rod 3 and nut block 4. The strip 1 is fixed to the base plate 10 by the L-shaped plate 7. Then, by rotating the threaded rod 12, the threaded sleeve 13 is moved, which causes the threaded sleeve 13 to drive the extrusion block 14 to extrude the template back rib 5 at the inside corner of the floor slab. During this process, the movement of the threaded sleeve 13 is limited by the cooperation of the slide rail 16 and the slider 17, which prevents the threaded sleeve 13 from shaking during the movement, thereby improving the stability of the threaded sleeve 13 during the movement. This achieves the effect of adding an extrusion block between the aluminum alloy horizontal plate and the side plate at the inside corner of the floor slab, making the horizontal plate and the side plate fit more tightly, thereby preventing grout leakage during pouring.
[0023] In summary, this aluminum alloy formwork for preventing grout leakage at the inside corner of a building floor slab achieves the following: By fixing the strip 1 to the surface of the template back rib 5, the strip 1 is fixed to the base plate 10 via the L-shaped plate 7. Then, by rotating the threaded rod 12, the threaded sleeve 13 is moved, causing the threaded sleeve 13 to drive the extrusion block 14 to extrude the template back rib 5 at the inside corner of the floor slab. This achieves the purpose of adding an extrusion block between the aluminum alloy horizontal plate and the side plate at the inside corner of the floor slab, making the horizontal plate and the side plate fit more tightly, thereby preventing grout leakage during pouring.
Claims
1. An aluminum alloy formwork for preventing grout leakage at the inside corner of a building floor slab, characterized in that, Includes a strip (1) and a clamping block (2): a bolt rod (3) is provided through the strip (1) and the clamping block (2), a nut block (4) is threadedly connected to the surface of the bolt rod (3), a template back rib (5) is provided between the strip (1) and the clamping block (2), an aluminum alloy template (8) is fixedly connected to the surface of the template back rib (5), an L-shaped plate (7) is welded to the surface of the strip (1), a base plate (10) is welded to the surface of the L-shaped plate (7), an ear block (11) is integrally formed on the surface of the base plate (10), a threaded rod (12) is rotatably connected to the inner wall of the ear block (11), a threaded sleeve (13) is threadedly connected to the surface of the threaded rod (12), an extrusion block (14) is fixedly connected to the end of the threaded sleeve (13), a slide rail (16) is fixedly connected to the surface of the base plate (10) by bolts, a slider (17) is slidably connected to the surface of the slide rail (16), and the slider (17) is fixedly connected to the threaded sleeve (13).
2. The aluminum alloy formwork for preventing grout leakage at the internal corner of a building floor slab according to claim 1, characterized in that, A washer (6) is fitted on the surface of the bolt rod (3), and the washer (6) is an elastic washer.
3. The aluminum alloy formwork for preventing grout leakage at the internal corner of a building floor slab according to claim 2, characterized in that, The surface of the L-shaped plate (7) is welded with a diagonal rod (9), and a connecting block (18) is welded between the diagonal rod (9) and the L-shaped plate (7).
4. The aluminum alloy formwork for preventing grout leakage at the internal corner of a building floor slab according to claim 3, characterized in that, The end of the threaded rod (12) is fixedly connected to a handle (15).
5. The aluminum alloy formwork for preventing grout leakage at the internal corner of a building floor slab according to claim 4, characterized in that, The extrusion block (14) is an L-shaped aluminum alloy block.