Staircase bottom reinforcing structure
By installing L-shaped angle steel and bolt components at the bottom of the stairwell formwork, and using locking screw components and metal mounting frames, the problem of insufficient fixation of the bottom of the traditional stairwell formwork is solved, and the solid pouring and high-quality molding of concrete is achieved.
Patent Information
- Application Number
- CN202421028273.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The lack of fixtures at the bottom of the traditional stairwell formwork results in the slurry leaking during pouring, affecting the appearance and quality, and the later repair is complicated and wastes resources.
Design a stairwell bottom reinforcement structure, ensuring that by installing L-shaped angle steel at the bottom of the outer formwork and fixing it to the side wall with bolt assembly, combining the locking screw assembly and metal mounting frame between the inner formwork and the outer formwork Stable connection of templates.
It effectively avoids concrete slurry leakage and mold expansion, ensures the accuracy and aesthetics of concrete forming, and improves wall quality and construction efficiency.
Smart Images
Figure CN222227960U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building engineering, and in particular relates to a staircase bottom reinforcement structure. Background Art
[0002] When pouring concrete, the wall is usually reinforced with paired formwork and steel frames, and several square timbers are fixed on the surface of the formwork. However, there is generally no external fixing device between the bottom of the traditional formwork and the side wall of the wall, so the bottom of the formwork cannot be reinforced. After the concrete is poured, the bottom of the outer formwork is prone to expansion; then the concrete at the bottom of the formwork leaks and expands the formwork seriously, affecting the appearance and quality of the wall. At the same time, the later rework, chiseling and repairing will greatly waste labor and materials, and the quality after repair cannot be guaranteed. Therefore, it is necessary to design a reinforcement structure for the bottom of the stairwell to overcome the above difficulties. Summary of the invention
[0003] In view of the problems existing in the prior art, the utility model designs a staircase bottom reinforcement structure, in which the outer template is extended relative to the inner template, and an L-shaped angle steel is installed in the lower hanging area of the extended outer module; the L-shaped angle steel is fixed to the wall by a bolt assembly, so that the bottom of the outer template is more firmly fixed, and the appearance and quality are better after the concrete pouring is completed.
[0004] The inventive objective of the utility model is achieved through the following technical solutions: a staircase bottom reinforcement structure, comprising an inner formwork and an outer formwork arranged in pairs, a steel bar skeleton is provided between the inner formwork and the outer formwork; metal mounting frames for fixing are provided on the sides of the inner formwork and the outer formwork, the metal mounting frames are arranged on the side facing away from the steel bar skeleton, a locking screw assembly is also provided between the inner formwork and the outer formwork, and the end of the locking screw assembly is clamped on the metal mounting frame; the bottom of the inner formwork is installed at the bottom of the wall, the outer formwork is installed on the side wall of the wall, and the outer formwork extends in a direction perpendicular to the wall; a number of evenly distributed square timbers are provided on the side wall of the outer formwork, and an L-shaped angle steel is provided between the bottom of the outer formwork and the bottom of the square timber; a bolt assembly for fixing is provided between the L-shaped angle steel and the wall, and the bolt assembly passes through the L-shaped angle steel and the outer formwork in sequence and extends to be installed in the wall.
[0005] Preferably, the locking screw assembly includes a screw body, a limiting support and a locking nut; the screw body is arranged perpendicular to the inner template and the outer template, and the ends of the screw body pass through the inner template and the outer template respectively; the metal mounting frame includes a plurality of circular tube bodies that are detachably connected to each other, the limiting support is arranged in a fit with the circular tube body on the metal mounting frame, and limiting supports are provided at both ends of the screw body; the locking nut is threadedly connected to the screw body, and the locking nut and the end faces of the limiting support are arranged in a fit with each other.
[0006] By setting a locking screw assembly, it is convenient to limit the axial position of the inner formwork and the outer formwork; when pouring concrete, the inner formwork and the outer formwork will be squeezed away from each other; since the inner formwork and the outer formwork are both arranged adjacent to the circular tube body, and the circular tube body and the limiting support are arranged adjacent to each other, the inner formwork and the outer formwork will be restricted between the circular tube body on the metal mounting frame.
[0007] Preferably, the end face of the limiting support is arranged to fit with the two circular tube bodies; the outer contour of the limiting support matches the outer contour of the circular tube body; the two circular tube bodies are arranged side by side and adjacent to each other, and the screw body passes through the gap between the two circular tube bodies.
[0008] The outer contour of the limiting support member matches the outer contour of the circular tube body, thus preventing the circular tube body from moving relative to the limiting support member, and providing a better locking effect for the locking screw assembly.
[0009] Preferably, the inner formwork and the outer formwork are arranged side by side and adjacent to each other, and the outer formwork is arranged in close contact with the side wall of the wall; the L-shaped angle steel includes a horizontal section and a vertical section that are integrally bent and formed, the horizontal section and the side wall of the wall are arranged perpendicular to each other, and the vertical section and the side wall of the wall are arranged in close contact with each other; the square timber extends from the top of the outer formwork to the bottom of the outer formwork, and a gap is left between the square timber and the bottom end face of the outer formwork; the bottom end face of the square timber is arranged parallel to the bottom end face of the wall, and the bottom end face of the square timber is arranged in close contact with the horizontal section; the vertical section is provided with a bolt assembly for fixing.
[0010] By setting up L-shaped angle steel, it is convenient to fix the outer template on the side wall of the wall; the bolt assembly passes through the L-shaped angle steel and at the same time passes through the lower hanging area of the outer template relative to the wall; in this way, the connection between the outer template and the bottom of the wall is tighter, which avoids concrete leakage and does not cause mold expansion. The square wood extends from the top of the outer template to the bottom of the outer template, so that the horizontal section of the L-shaped angle steel can support the square wood, and the L-shaped angle steel can play a temporary support role when the outer template is fixed and installed as a whole.
[0011] Preferably, the horizontal section and the vertical section are arranged perpendicular to each other, and the thickness of the horizontal section and the vertical section is the same; the cross-sectional length of the vertical section is greater than the cross-sectional length of the horizontal section; the horizontal section extends radially along the outer template, and a gap is left between the end of the horizontal section and the side wall of the square timber; the bottom end surface of the vertical section is arranged flush with the bottom end surface of the outer template.
[0012] Preferably, the bolt assembly includes a bolt body, a metal gasket and a waterstop screw joint nut; the waterstop screw joint nut is installed in the wall, and the bolt body passes through the metal gasket, the vertical section and the outer template in sequence, and extends to be installed in the waterstop screw joint nut; the metal gasket and the vertical section are arranged to fit each other, and the bolt body is threadedly connected to the waterstop screw joint nut.
[0013] When installing the bolt assembly, first embed the waterstop screw joint nut into the wall, then install the L-shaped angle steel, then install the metal gasket on the end face of the L-shaped angle steel, and finally connect the bolt body with the waterstop screw joint nut thread, so as to reliably fix the L-shaped angle steel and the outer template on the side wall of the wall.
[0014] Preferably, the vertical section is provided with a plurality of evenly distributed waist-shaped holes, and the axial direction of the waist-shaped holes is horizontally arranged; the bolt body is inserted into the waist-shaped hole, and the outer contour of the bolt body matches the outer contour of the waist-shaped hole.
[0015] By setting the waist-shaped hole, it is convenient to adjust the position of the L-shaped angle steel horizontally to the left and right, and the installation position of the L-shaped angle steel is more flexible and can be finely adjusted.
[0016] Preferably, a double-sided tape is provided between the outer template and the side wall of the wall, and a gap is left between the bottom of the double-sided tape and the upper end surface of the L-shaped angle steel.
[0017] By setting double-sided tape, the connection between the outer formwork and the wall is made more secure.
[0018] Preferably, a number of evenly distributed square timbers are provided on the side walls of the inner and outer templates, and the metal mounting frame comprises a number of circular tube bodies spliced to each other, and the circular tube bodies are arranged adjacent to the square timbers.
[0019] A number of evenly distributed square timbers are arranged on the side walls of the inner and outer templates, so that the overall structural strength of the inner and outer templates is better. At the same time, they are fixed by metal mounting frames, so that the supporting effect of the inner and outer templates is more stable.
[0020] Compared with the prior art, the utility model has the following beneficial effects: the utility model sets a pair of inner and outer templates at the bottom of the wall, and the outer template is extended with a hanging area relative to the bottom of the wall; an L-shaped angle steel is installed in the hanging area of the outer template, and the L-shaped angle steel fixes the hanging area of the outer template on the side wall of the wall through a bolt assembly; then there will be no concrete leakage at the bottom of the inner and outer templates, and no mold expansion; because the inner and outer templates are limited by a metal mounting frame and a locking screw assembly, and at the same time, the bottom of the outer template is fixed by a bolt assembly; then after the concrete pouring is completed, the concrete forming size is more accurate, the appearance is more beautiful and the product quality is better. An L-shaped angle steel is provided between the bottom of the outer template and the bottom of the square wood, and the L-shaped angle steel is respectively arranged to fit the hanging area of the outer template and the square wood, so that the support effect of the L-shaped angle steel is better, and the L-shaped angle steel is more stable when connected to the wall. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is the internal structure diagram of the utility model;
[0022] Figure 2 It is a side view of the utility model;
[0023] Figure 3 for Figure 1 A partial enlarged view of position A in the middle.
[0024] Markings in the figure: 1. Inner formwork; 2. Outer formwork; 3. Steel bar skeleton; 4. Metal mounting frame; 41. Round tube body; 5. Locking screw assembly; 51. Screw body; 52. Limit support; 53. Locking nut; 6. Square wood; 7. L-shaped angle steel; 71. Horizontal section; 72. Vertical section; 73. Waist-shaped hole; 8. Bolt assembly; 81. Bolt body; 82. Metal gasket; 83. Waterstop screw joint nut; 9. Double-sided tape; 10. Wall. DETAILED DESCRIPTION
[0025] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:
[0026] like Figures 1 to 3As shown, the present embodiment discloses a staircase bottom reinforcement structure, comprising an inner formwork 1 and an outer formwork 2 arranged in pairs, a steel bar skeleton 3 is provided between the inner formwork 1 and the outer formwork 2; metal mounting frames 4 for fixing are provided on the sides of the inner formwork 1 and the outer formwork, and the metal mounting frames 4 are arranged on the side facing away from the steel bar skeleton 3. A locking screw assembly 5 is also provided between the inner formwork 1 and the outer formwork 2, and the end of the locking screw assembly 5 is clamped on the metal mounting frame 4; the bottom of the inner formwork 1 is installed on the bottom of the wall 10, and the outer formwork 2 is installed on the side wall of the wall 10, and the outer formwork 2 extends in a direction perpendicular to the wall 10; a number of evenly distributed square timbers 6 are provided on the side wall of the outer formwork 2, and an L-shaped angle steel 7 is provided between the bottom of the outer formwork 2 and the bottom of the square timber 6; a bolt assembly 8 for fixing is provided between the L-shaped angle steel 7 and the wall 10, and the bolt assembly 8 passes through the L-shaped angle steel 7 and the outer formwork 2 in sequence and extends to be installed in the wall 10.
[0027] The locking screw assembly 5 includes a screw body 51, a limiting support 52 and a locking nut 53; the screw body 51 is arranged vertically with the inner template 1 and the outer template 2, and the ends of the screw body 51 pass through the inner template 1 and the outer template 2 respectively; the metal mounting frame 4 includes a plurality of circular tube bodies 41 that are detachably connected to each other, the limiting support 52 is arranged in close contact with the circular tube bodies 41 on the metal mounting frame 4, and both ends of the screw body 51 are provided with limiting supports 52; the locking nut 53 is threadedly connected with the screw body 51, and the locking nut 53 and the end face of the limiting support 52 are arranged in close contact with each other. The end face of the limiting support 52 is arranged in close contact with the two circular tube bodies 41; the outer contour of the limiting support 52 matches the outer contour of the circular tube body 41; the two circular tube bodies 41 are arranged side by side and adjacent to each other, and the screw body 51 passes through the gap between the two circular tube bodies 41.
[0028] The inner formwork 1 and the outer formwork 2 are arranged side by side and adjacent to each other, and the outer formwork 2 is arranged in close contact with the side wall of the wall 10; the L-shaped angle steel 7 includes a horizontal section 71 and a vertical section 72 that are integrally bent and formed, and the horizontal section 71 is arranged perpendicular to the side wall of the wall 10, and the vertical section 72 is arranged in close contact with the side wall of the wall 10; the square timber 6 extends from the top of the outer formwork 2 to the bottom of the outer formwork 2, and a gap is left between the square timber 6 and the bottom end face of the outer formwork 2; the bottom end face of the square timber 6 is arranged parallel to the bottom end face of the wall 10, and the bottom end face of the square timber 6 is arranged in close contact with the horizontal section 71; the vertical section 72 is provided with a bolt assembly 8 for fixing. The horizontal section 71 and the vertical section 72 are arranged perpendicular to each other, and the thickness of the horizontal section 71 and the vertical section 72 is the same; the cross-sectional length of the vertical section 72 is greater than the cross-sectional length of the horizontal section 71; the horizontal section 71 extends along the radial direction of the outer template 2, and a gap is left between the end of the horizontal section 71 and the side wall of the square wood 6; the bottom end surface of the vertical section 72 is arranged flush with the bottom end surface of the outer template 2. The bolt assembly 8 includes a bolt body 81, a metal gasket 82 and a water-stop screw joint nut 83; the water-stop screw joint nut 83 is installed in the wall 10, and the bolt body 81 passes through the metal gasket 82, the vertical section 72 and the outer template 2 in sequence, and extends to be installed in the water-stop screw joint nut 83; the metal gasket 82 and the vertical section 72 are arranged to fit each other, and the bolt body 81 is threadedly connected with the water-stop screw joint nut 83. The vertical section 72 is provided with a plurality of evenly distributed waist-shaped holes 73 , and the axial direction of the waist-shaped holes 73 is horizontally arranged; the bolt body 81 is inserted into the waist-shaped hole 73 , and the outer contour of the bolt body 81 matches the outer contour of the waist-shaped hole 73 .
[0029] A double-sided adhesive tape 9 is provided between the outer template 2 and the side wall of the wall 10, and a gap is left between the bottom of the double-sided adhesive tape 9 and the upper end surface of the L-shaped angle steel 7. A plurality of evenly distributed square timbers 6 are provided on the side walls of the inner template 1 and the outer template 2, and the metal mounting frame 4 includes a plurality of circular tube bodies 41 spliced to each other, and the circular tube bodies 41 are arranged adjacent to the square timbers 6.
[0030] The specific operation process of this embodiment is as follows: first, build a metal mounting frame 4 on the wall 10, then pre-embed the water-stop screw joint nut 83 into the side wall of the wall 10; then pre-place the inner formwork 1 and the outer formwork 2 on the wall 10 and position them through the locking screw assembly 5 and the metal mounting frame 4, at this time, the locking nut 53 on the locking screw assembly 5 does not need to be tightened; then install the L-shaped angle steel 7 on the side wall of the wall 10, and insert the metal gasket 82 on the bolt body 81; then pre-install the bolt body 81 on the water-stop screw joint nut 83, at this time, the bolt body 81 does not need to be tightened; in this way, a gap will be left between the lower hanging area of the outer formwork 2 and the wall 10; then apply double-sided tape 9 to the lower hanging area of the wall 10 and the outer formwork 2, and then tighten the bolt body 81; finally, tighten the locking nut 53 on the locking screw assembly 5, so that the inner formwork 1 and the outer formwork 2 will remain fixed.
[0031] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. A staircase bottom reinforcement structure, comprising an inner formwork (1) and an outer formwork (2) arranged in pairs, characterized in that: A steel frame (3) is provided between the inner formwork (1) and the outer formwork (2); metal mounting frames (4) for fixing are provided on the sides of the inner formwork (1) and the outer formwork, the metal mounting frames (4) being arranged on the side facing away from the steel frame (3); a locking screw assembly (5) is also provided between the inner formwork (1) and the outer formwork (2), the end of the locking screw assembly (5) being clamped on the metal mounting frame (4); the bottom of the inner formwork (1) is mounted on the bottom of the wall (10), and the outer formwork (2) is installed on the side wall of the wall (10), the outer template (2) extends in a direction perpendicular to the wall (10); a plurality of evenly distributed square timbers (6) are provided on the side wall of the outer template (2), an L-shaped angle steel (7) is provided between the bottom of the outer template (2) and the bottom of the square timber (6); a bolt assembly (8) for fixing is provided between the L-shaped angle steel (7) and the wall (10), the bolt assembly (8) passes through the L-shaped angle steel (7) and the outer template (2) in sequence and extends to be installed in the wall (10).
2. The staircase bottom reinforcement structure according to claim 1, characterized in that: The locking screw assembly (5) comprises a screw body (51), a limiting support member (52) and a locking nut (53); the screw body (51) is arranged perpendicularly to the inner template (1) and the outer template (2), and the ends of the screw body (51) respectively pass through the inner template (1) and the outer template (2); the metal mounting frame (4) comprises a plurality of circular tube bodies (41) that are detachably connected to each other, the limiting support member (52) is arranged in close contact with the circular tube body (41) on the metal mounting frame (4), and both ends of the screw body (51) are provided with limiting support members (52); the locking nut (53) is threadedly connected to the screw body (51), and the end faces of the locking nut (53) and the limiting support member (52) are arranged in close contact with each other.
3. The staircase bottom reinforcement structure according to claim 2, characterized in that: The end surface of the position-limiting support member (52) is arranged to fit the two circular tube bodies (41); the outer contour of the position-limiting support member (52) matches the outer contour of the circular tube body (41); the two circular tube bodies (41) are arranged side by side and adjacent to each other, and the screw body (51) passes through the gap between the two circular tube bodies (41).
4. The staircase bottom reinforcement structure according to claim 1, characterized in that: The inner formwork (1) and the outer formwork (2) are arranged side by side and adjacent to each other, and the outer formwork (2) and the side wall of the wall (10) are arranged in contact with each other; the L-shaped angle steel (7) comprises a horizontal section (71) and a vertical section (72) formed by integral bending, the horizontal section (71) and the side wall of the wall (10) are arranged perpendicular to each other, and the vertical section (72) and the side wall of the wall (10) are arranged in contact with each other; the square timber (6) extends from the top of the outer formwork (2) to the bottom of the outer formwork (2), and a gap is left between the square timber (6) and the bottom end surface of the outer formwork (2); the bottom end surface of the square timber (6) and the bottom end surface of the wall (10) are arranged parallel to each other, and the bottom end surface of the square timber (6) and the horizontal section (71) are arranged in contact with each other; and a bolt assembly (8) for fixing is provided on the vertical section (72).
5. The staircase bottom reinforcement structure according to claim 4, characterized in that: The horizontal section (71) and the vertical section (72) are arranged perpendicular to each other, and the thickness of the horizontal section (71) and the vertical section (72) are the same; the cross-sectional length of the vertical section (72) is greater than the cross-sectional length of the horizontal section (71); the horizontal section (71) extends along the radial direction of the outer template (2), and a gap is left between the end of the horizontal section (71) and the side wall of the square wood (6); the bottom end surface of the vertical section (72) is arranged flush with the bottom end surface of the outer template (2).
6. The staircase bottom reinforcement structure according to claim 4, characterized in that: The bolt assembly (8) comprises a bolt body (81), a metal gasket (82) and a water-stop screw joint nut (83); the water-stop screw joint nut (83) is installed in the wall (10), and the bolt body (81) passes through the metal gasket (82), the vertical section (72) and the outer template (2) in sequence, and extends to be installed in the water-stop screw joint nut (83); the metal gasket (82) and the vertical section (72) are arranged to fit each other, and the bolt body (81) is threadedly connected to the water-stop screw joint nut (83).
7. The staircase bottom reinforcement structure according to claim 6, characterized in that: The vertical section (72) is provided with a plurality of evenly distributed waist-shaped holes (73), and the axial direction of the waist-shaped holes (73) is arranged horizontally; the bolt body (81) is inserted into the waist-shaped hole (73), and the outer contour of the bolt body (81) matches the outer contour of the waist-shaped hole (73).
8. The staircase bottom reinforcement structure according to claim 1, characterized in that: A double-sided adhesive tape (9) is provided between the outer template (2) and the side wall of the wall (10), and a gap is left between the bottom of the double-sided adhesive tape (9) and the upper end surface of the L-shaped angle steel (7).
9. The staircase bottom reinforcement structure according to claim 1, characterized in that: A plurality of evenly distributed square timbers (6) are provided on the side walls of the inner template (1) and the outer template (2), and the metal mounting frame (4) comprises a plurality of circular tube bodies (41) spliced to each other, wherein the circular tube bodies (41) are arranged adjacent to the square timbers (6).