Stair formwork for house building construction

Abstract

The utility model relates to the technical field of stair formworks, in particular to a stair formwork for house building construction, which comprises a bottom formwork, side formworks and step formworks. The upper end face of the bottom formwork abuts against the two side formworks, and the stepping formwork abuts against the upper end faces of the side formworks. The outer side faces of the two side formworks are each connected with a top adjusting plate, a middle adjusting plate and a bottom adjusting plate. The top adjusting plate is clamped to the top of the bottom formwork and the tops of the step formworks through the clamping pieces, and the bottom adjusting plate is clamped to the bottoms of the bottom formwork and the bottoms of the step formworks through the clamping pieces; and the middle adjusting plate is clamped in the middle of the stepping template by the clamping piece. According to the stair formwork for house building construction, due to the position adjustable design of the side formworks and the flexible fixing design of the clamping pieces, the stair formwork can be suitable for cast-in-place of stairs with different widths within a certain range.

Description

Technical Field

[0001] The utility model relates to the technical field of stair formwork, and more specifically, particularly relates to a stair formwork used for building construction. Background Art

[0002] Most of the stairs in room construction are made of reinforced concrete stairs. The stair template is made according to the designed shape and size, and then the concrete is poured. After solidification, the template is removed to form the required stair shape.

[0003] Patent publication number CN219158406U discloses a staircase formwork for building construction. This formwork ensures the quality of the stair treads by providing a precisely sized bottom tread formwork, a standard tread formwork, and a top tread formwork. These formworks are fixedly connected to the bottom formwork, resulting in an integrated, high-quality stair tread. However, this staircase formwork is designed for a fixed stair width. During building construction, not all staircases maintain a consistent width; the widths vary within a certain range. This makes the formwork unsuitable for cast-in-place staircases of other widths. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a stair template for building construction.

[0005] A staircase template for building construction, comprising a bottom template, a side template and a tread template; the upper end surface of the bottom template abuts against the two side templates, and the tread template abuts against the upper end surfaces of the side templates;

[0006] The outer sides of the two side templates are connected with a top adjustment plate, a middle adjustment plate and a bottom adjustment plate;

[0007] It also includes a clip, which clips the top adjustment plate to the top of the bottom template and the top of the step template, and the clip also clips the bottom adjustment plate to the bottom of the bottom template and the bottom of the step template; the clip also clips the middle adjustment plate to the middle of the step template.

[0008] Furthermore, the bottom template includes a top stepping platform, an inclined section and a bottom stepping platform, and also includes a top baffle connected to the top stepping platform and a bottom baffle connected to the bottom stepping platform;

[0009] The side formwork includes a top tread side plate, a middle tread side plate and a bottom tread side plate;

[0010] The tread template comprises a top tread upper template, a middle tread upper template and a bottom tread upper template.

[0011] Furthermore, the top step upper template is L-shaped, and its vertical portion is fixedly connected to the vertical portion of the middle step upper template;

[0012] The bottom step upper template is L-shaped, and its vertical portion is fixedly connected to the vertical portion of the middle step upper template.

[0013] Furthermore, the top adjustment plate, the middle adjustment plate and the bottom adjustment plate are all plate-shaped structures with a central hole.

[0014] Furthermore, the top adjustment plate includes two top plates that are parallel to each other and arranged up and down, the upper end surface of the top plate located above is flush with the top end of the top step side plate, and the lower end surface of the top plate located below is flush with the bottom end of the top step side plate.

[0015] Furthermore, the middle adjustment plate is a single plate-shaped structure, and at least one of them is arranged; the upper end surface of the middle adjustment plate is flush with the top end of the corresponding middle step side plate.

[0016] Furthermore, the bottom adjustment plate includes two bottom plates that are parallel to each other and arranged up and down, the upper end surface of the upper bottom plate is flush with the top end of the bottom step side plate, and the lower end surface of the lower bottom plate is flush with the bottom end of the bottom step side plate.

[0017] Furthermore, the clamping member is a U-shaped structure, including a first fixed edge and a second fixed edge parallel to each other, and a vertical fixed edge is fixedly connected between the first fixed edge and the second fixed edge.

[0018] Furthermore, the first fixed side and the second fixed side have different lengths, the first fixed side is provided with a first waist-shaped through hole, and the second fixed side is provided with a second waist-shaped through hole.

[0019] Furthermore, the clamping part is used to clamp to the horizontal part of the top plate and the top step upper template, and is also used to clamp to the top plate and the top step platform, and is also used to clamp to the horizontal part of the bottom plate and the bottom step upper template, and is also used to clamp to the bottom plate and the bottom step platform; it is also used to clamp to the middle adjustment plate and the middle step upper template.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The stair formwork used for building construction is provided with a top adjustment plate, a middle adjustment plate and a bottom adjustment plate on the outer sides of the two side formworks. The side formworks can be fixed to the bottom formwork and the step formwork respectively through the clamping parts, so that the stair formwork is firmly fixed. At the same time, since the two fixing sides of the clamping parts are respectively provided with waist-shaped through holes, the fixing position thereof is specially adjusted, and the placement position of the side formwork on the bottom formwork can be adjusted according to the width of the stairs, and then the side formwork is fixed to the bottom formwork and the step formwork by passing the clamping parts with bolts.

[0022] The stair formwork used in building construction has an adjustable side formwork position design and a flexible fixing design of the clamping parts, so that the stair formwork can be suitable for cast-in-place stairs of different widths within a certain range.

[0023] Furthermore, because the clamping member is provided with a first fixing edge and a second fixing edge of different lengths, and each of these fixing edges is provided with a waist-shaped through-hole, a certain range of adjustment is possible when bolts are inserted into and abutted against any of the fixing edges. When the width of the staircase to be cast in place is narrow, the longer fixing edge is abutted against the top, middle, and bottom adjustment plates. Bolts are then inserted into the adjusted positions, with the ends of the bolts passing through the waist-shaped through-holes and the center hole, respectively, abutting against the bottom formwork or tread formwork, thereby achieving fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of a stair formwork used for building construction in an embodiment.

[0026] Figure 2 It is a schematic diagram of the exploded structure of a stair formwork used for building construction in an embodiment.

[0027] Figure 3 Schematic diagram of the clamping plate in the embodiment.

[0028] Figure 4 Schematic diagram of another usage state of the clamping plate in the embodiment.

[0029] In the figure: 1, bottom template; 11, top step platform; 12, inclined section; 13, bottom step platform; 14, top baffle; 15, bottom baffle;

[0030] 2. Side formwork; 21. Top tread side plate; 22. Middle tread side plate; 23. Bottom tread side plate;

[0031] 3. Tread formwork; 31. Top tread upper formwork; 32. Middle tread upper formwork; 33. Bottom tread upper formwork;

[0032] 4. Top adjustment plate; 41. Top plate;

[0033] 5. Middle adjustment plate;

[0034] 6. Bottom adjustment plate; 61. Bottom plate;

[0035] 7. Snap-fitting member; 71. First fixed edge; 711. First waist-shaped through hole; 72. Second fixed edge; 721. Second waist-shaped through hole; 73. Vertical fixed edge;

[0036] 8. Center hole. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] like Figure 1-Figure 2 As shown, this embodiment provides a stair formwork for building construction, including a bottom formwork 1, a side formwork 2 and a step formwork 3. The upper end surface of the bottom formwork 1 abuts against the two side formworks 2, and the step formwork 3 abuts against the upper end surface of the side formwork 2; the outer sides of the two side formworks 2 are connected with a top adjustment plate 4, a middle adjustment plate 5 and a bottom adjustment plate 6, and the side formwork 2 is fixed to the bottom formwork 1 and the step formwork 3 at each adjustment plate by a clamping member 7. The clamping member 7 clamps the top adjustment plate 4 to the top of the bottom formwork 1 and the top of the step formwork 3, and the clamping member 7 also clamps the bottom adjustment plate 6 to the bottom of the bottom formwork 1 and the bottom of the step formwork 3, and the clamping member 7 also clamps the middle adjustment plate 5 to the middle of the step formwork 3.

[0039] Specifically, the bottom template 1 includes a top step platform 11, an inclined section 12 and a bottom step platform 13, and also includes a top baffle 14 connected to the top step platform 11 and a bottom baffle 15 connected to the bottom step platform 13. The various parts of the bottom template 1 are connected by welding steel plates.

[0040] The side formwork 2 includes a top tread side panel 21, an intermediate tread side panel 22, and a bottom tread side panel 23. Both the top tread side panel 21 and the bottom tread formwork 23 are rectangular plates. The bottom edge of the intermediate tread formwork 22 is an inclined edge, and its inclination is adapted to the inclination of the inclined section of the bottom formwork 1. The top of the intermediate tread formwork 22 is stepped.

[0041] The tread formwork 3 comprises a top tread formwork 31, an intermediate tread formwork 32, and a bottom tread formwork 33. The top tread formwork 31 is L-shaped, with its vertical portion bolted to the vertical portion of the top tread formwork 32 of the intermediate tread formwork. The bottom tread formwork 33 is L-shaped, with its vertical portion bolted to the vertical portion of the bottom tread formwork 33 of the intermediate tread formwork. The intermediate tread formwork 32 is stepped, with each step sized to match the middle tread formwork 22.

[0042] In this embodiment, the top adjusting plate 4, the middle adjusting plate 5 and the bottom adjusting plate 6 are all plate-like structures with a central hole 8.

[0043] Specifically, the top adjusting plate 4 includes two parallel top plates 41 arranged vertically. The upper end surface of the upper top plate is flush with the top end of the top step side plate 21, and the lower end surface of the lower top plate is flush with the bottom end of the top step side plate 21.

[0044] The middle adjusting plate 5 is a single plate-like structure, and at least one is arranged. In this embodiment, two middle adjusting plates 5 are arranged; the upper end surface of the middle adjusting plate 5 is flush with the top end of the corresponding middle step side plate 22.

[0045] The bottom adjusting plate 6 includes two parallel bottom plates 61 arranged vertically. The upper end surface of the upper bottom plate is flush with the top end of the bottom step side plate 23, and the lower end surface of the lower bottom plate is flush with the bottom end of the bottom step side plate 23.

[0046] As Figure 2-Figure 4 shown, the clamping member 7 is a U-shaped structure, including a first fixed side 71 and a second fixed side 72 that are parallel to each other. A vertical fixed side 73 is fixedly connected between the first fixed side 71 and the second fixed side 72. Among them, the lengths of the first fixed side 71 and the second fixed side 72 are different. The first fixed side 71 is provided with a first waist-shaped through hole 711, and the second fixed side 72 is provided with a second waist-shaped through hole 721.

[0047] Further specifically, the clamping member 7 is clamped between the top plate 41 and the horizontal part of the top step upper template 31. That is to say, the clamping member 7 clamps the top plate 41 and the horizontal part of the top step upper template 31, and then a bolt is passed through the waist-shaped through hole of the clamping member and the central hole of the top plate 41, and the bolt abuts against the lower end surface of the top step upper template 31, so that the side template 2 is connected to the step template 3.

[0048] The clamping member 7 is also clamped between the top plate 41 and the top step platform 11. That is to say, the clamping member 7 clamps the top plate 41 and the top step platform 11, and then a bolt is passed through the waist-shaped through hole of the clamping member and the central hole of the top plate 41, and the bolt abuts against the upper end surface of the top step platform 11, so that the side template 2 is connected to the bottom template 1.

[0049] The clamping member 7 is also clamped between the bottom plate 61 and the horizontal part of the bottom step upper template 33. That is to say, the clamping member 7 clamps the bottom plate 61 and the bottom step upper template 33, and then a bolt is passed through the waist-shaped hole of the clamping member and the central hole of the bottom plate 61, and the bolt abuts against the lower end surface of the bottom step upper template 33, so that the side template is connected to the step template.

[0050] The clamping member 7 is also clamped to the base plate 61 and the bottom step platform 13, that is, the clamping member 7 clamps the base plate 61 and the bottom step platform 23, and then bolts are passed through the waist-shaped through hole of the clamping member and the center hole of the base plate 61, and the bolts are abutted against the upper end surface of the bottom step platform 13, so that the side template 2 is connected to the bottom template 1.

[0051] The clamping member 7 is also used to clamp the middle adjustment plate 5 and the middle step upper template 32, that is, the clamping member 7 clamps the middle adjustment plate 5 and the middle step side plate 22, and then the bolts are passed through the waist-shaped hole of the clamping member and the center hole of the middle adjustment plate 5, and the bolts are abutted against the middle step upper template 32, so that the side template 2 is connected to the step template 3.

[0052] Since the clamping member 7 is provided with a first fixed edge 71 and a second fixed edge 72 of different lengths, and these two fixed edges are respectively provided with waist-shaped through-holes, a certain adjustment range can be achieved when bolts are inserted into any of the fixed edges for abutment and fixation. When the width of the staircase to be cast in place is narrow, the longer fixed edge is abutted against the top adjustment plate, the middle adjustment plate, and the bottom adjustment plate, and then bolts are inserted into the adjusted position so that the ends of the bolts pass through the waist-shaped through-holes and the center hole, respectively, and abut against the bottom formwork or the step formwork, thereby achieving fixation. It is worth noting that the waist-shaped through-hole design of the clamping member 7 and the center hole 8 design of the top adjustment plate 4, the middle adjustment plate 5, and the bottom adjustment plate 6 enable the side formwork 2 to be fixed to the corresponding bottom formwork 1 or the step formwork 3 after the bolts are inserted, thereby avoiding the problem of having positioning holes on the bottom formwork 1 or the step formwork 3, which affects the adjustment of the stair formwork width and the positioning holes affecting the casting.

[0053] The stair formwork for building construction provided in this embodiment is provided with a top adjustment plate 4, a middle adjustment plate 5 and a bottom adjustment plate 6 on the outer side surfaces of the two side formworks 2. The side formworks 2 can be fixed to the bottom formwork 1 and the step formwork 3 respectively by means of the clamping parts 7, thereby achieving a firm fixation of the stair formwork. At the same time, since waist-shaped through holes are respectively provided on the two fixing sides of the clamping parts 7, the fixing position thereof is specially adjusted, and the placement position of the side formwork 2 on the bottom formwork 1 can be adjusted according to the width of the stairs. The side formwork 2 can then be fixed to the bottom formwork 1 and the step formwork 3 by means of bolts passing through the clamping parts. The adjustable position design of the side formwork 2 of the stair formwork and the flexible fixing design of the clamping parts enable this stair formwork to be suitable for cast-in-place stairs of different widths within a certain range.

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A staircase formwork for building construction, characterized in that: It includes a bottom template (1), side templates (2), and a step template (3); the upper end surface of the bottom template (1) abuts against the two side templates (2), and the step template (3) abuts against the upper end surfaces of the side templates (2); Top adjusting plates (4), middle adjusting plates (5), and bottom adjusting plates (6) are connected to the outer side surfaces of the two side templates (2); It further includes a clamping member (7), the clamping member (7) clamps the top adjusting plate (4) to the top of the bottom template (1) and the top of the step template (3), and the clamping member (7) also clamps the bottom adjusting plate (6) to the bottom of the bottom template (1) and the bottom of the step template (3); the clamping member (7) also clamps the middle adjusting plate (5) to the middle of the step template (3); 2. The staircase formwork for building construction according to claim 1 is characterized in that: The bottom template (1) includes a top step platform (11), an inclined section (12), and a bottom step platform (13), and further includes a top baffle (14) connected to the top step platform (11) and a bottom baffle (15) connected to the bottom step platform (13); The side template (2) includes a top step side plate (21), a middle step side plate (22), and a bottom step side plate (23); The step template (3) includes a top step upper template (31), a middle step upper template (32), and a bottom step upper template (33).

3. The staircase formwork for building construction according to claim 2, characterized in that: The top step upper template (31) is L-shaped, and its vertical part is fixedly connected to the vertical part of the middle step upper template (32); The bottom step upper template (33) is L-shaped, and its vertical part is fixedly connected to the vertical part of the middle step upper template (32).

4. The staircase formwork for building construction according to claim 3 is characterized in that: The structures of the top adjusting plate (4), the middle adjusting plate (5), and the bottom adjusting plate (6) are all plate-like structures with a central hole (8).

5. The staircase formwork for building construction according to claim 4, characterized in that: The top adjusting plate (4) includes two parallel top plates (41) arranged vertically, the upper end surface of the top plate (41) located above is flush with the top end of the top step side plate (21), and the lower end surface of the top plate (41) located below is flush with the bottom end of the top step side plate (21).

6. The staircase formwork for building construction according to claim 5, characterized in that: The middle adjusting plate (5) is a single plate-like structure, and at least one is arranged; the upper end surface of the middle adjusting plate (5) is flush with the top end of the corresponding middle step side plate (22).

7. The staircase formwork for building construction according to claim 6, characterized in that: The bottom adjusting plate (6) includes two parallel bottom plates (61) arranged vertically, the upper end surface of the bottom plate (61) located above is flush with the top end of the bottom step side plate (23), and the lower end surface of the bottom plate (61) located below is flush with the bottom end of the bottom step side plate (23).

8. The staircase formwork for building construction according to claim 7, characterized in that: The clamping member (7) is a C-shaped structure, including a first fixed side (71) and a second fixed side (72) that are parallel to each other, and a vertical fixed side (73) is fixedly connected between the first fixed side (71) and the second fixed side (72).

9. The staircase formwork for building construction according to claim 8, characterized in that: The lengths of the first fixed side (71) and the second fixed side (72) are different, the first fixed side (71) is provided with a first waist-shaped through hole (711), and the second fixed side (72) is provided with a second waist-shaped through hole (721).

10. The staircase formwork for building construction according to claim 9, characterized in that: The clamping member (7) is used for clamping to the top plate (41) and the horizontal part of the top step upper template (31), and is also used for clamping to the top plate (41) and the top step platform (11), and is also used for clamping to the bottom plate (61) and the horizontal part of the bottom step upper template (33), and is also used for clamping to the bottom plate (61) and the bottom step platform (13); and is also used for clamping to the middle adjustment plate (5) and the middle step upper template (32).

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