Reinforced combined steel formwork
By employing a dual-structure design of inner and outer mold shells and a robust connection method, the problems of deformation and connection gaps in modular steel formwork during concrete pouring are solved, achieving high strength and efficient assembly of the formwork and ensuring the molding quality and structural safety of concrete components.
Patent Information
- Application Number
- CN202422130595.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-09-02
AI Technical Summary
Existing modular steel formwork is prone to deformation or damage when subjected to the pressure of concrete pouring, and gaps may be generated at the joints, affecting the molding quality and structural safety of concrete components. In addition, the assembly process is cumbersome and inefficient.
The design employs a dual structure of inner and outer mold shells. The insert channel on the outer side of the inner mold shell is inserted into the insert plate on the inner wall of the outer mold shell, and the insert sleeve on the inner wall of the outer mold shell is slidably inserted into the insert strip to form a stable connection. The inner and outer mold shells are connected by bolts to increase the rigidity and sealing of the ribs and arc plates.
It improves the structural strength and stability of the formwork, ensures the quality and safety of concrete pouring, enhances the compressive, tensile and shear resistance of the formwork, and improves durability and construction efficiency.
Smart Images
Figure CN223753700U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of steel formwork, especially to a reinforced combined steel formwork. BACKGROUND
[0002] The existing combined steel formwork is generally single-layer structure, which is easy to deform or damage when bearing the huge pressure and lateral pressure generated during concrete pouring, thereby affecting the forming quality of the concrete member. Moreover, the connection between the formworks generally adopts bolts, and the bolt connection of the single-layer steel formwork may generate gaps during pouring due to insufficient fastening or loosening, resulting in problems such as slurry leakage and mold running, further affecting the safety and durability of the structure.
[0003] The existing steel formwork needs a large amount of manpower and time during assembly, especially the hoisting and installation process of large formwork is more complicated, which reduces the construction efficiency. UTILITY MODEL CONTENT
[0004] The utility model aims to provide a reinforced combined steel formwork, and solves the technical problems as follows: how to improve the structural strength and stability of the formwork to ensure the quality and safety during concrete pouring.
[0005] To solve the problems in the prior art, the utility model adopts the following technical scheme:
[0006] A reinforced combined steel formwork comprises inner membrane shells and outer membrane shells, two inner membrane shells are horizontally attached to each other to form a circular inner cavity, the outer side of the circular inner cavity is symmetrically provided with outer membrane shells, the outer membrane shells are vertically attached to each other and are sleeved on the outer side of the circular inner cavity, the middle part of the outer side of the inner membrane shell is provided with an embedding channel, the inner wall of the outer membrane shell is fixedly connected with embedding plates on both sides, the embedding plates are slidingly inserted into the corresponding embedding channels, the outer side edges of the inner wall of the inner membrane shell are bent to form insertion strips, and the inner wall center of the outer membrane shell is provided with an insertion sleeve, and the insertion strips are slidingly inserted into the corresponding insertion sleeves.
[0007] Preferably, the outer wall of the inner membrane shell and the outer wall of the outer membrane shell are both provided with ribs, the ribs serve as reinforcing members and can significantly improve the rigidity and bearing capacity of the formwork.
[0008] Preferably, the top and bottom of the inner membrane shell are both provided with circular arc pieces, which facilitates the up-down splicing and assembly of the inner membrane shells and further facilitates stacking.
[0009] Preferably, waist-shaped holes are equidistantly arranged on the surface of the circular arc pieces, and the waist-shaped holes can serve as mounting points of connecting members such as bolts and pins.
[0010] Preferably, the width of the arc piece of the top of the inner membrane shell is smaller than that of the bottom of the inner membrane shell, and the outer mold shell can smoothly slide into the top without being hindered by the upper arc piece when assembled, and the edge of the bottom of the outer mold shell naturally abuts against the lower arc piece after assembly is completed.
[0011] Preferably, the surface of the arc piece is provided with a notch, which facilitates pouring of concrete and forms a re-strengthening structure between the inner and outer layers of the formwork.
[0012] Preferably, bolt holes are equally arranged at the abutting positions of the inner membrane shell and the outer mold shell, and the inner membrane shells or the outer mold shells are assembled through the bolt holes.
[0013] Compared with the related art, the utility model has the following beneficial effects:
[0014] The utility model discloses a double-structure design of the inner membrane shell and the outer mold shell, and the mutual insertion of the insertion sleeve and the insertion strip on the inner wall of the outer mold shell and the embedded channel and the embedded plate on the outer side of the inner membrane shell, forming a stable connection system, so that the formwork is more stable and reliable when bearing the concrete pressure and lateral pressure.
[0015] The inner cavity formed between the inner and outer mold shells is closely combined with the inner and outer mold shells after the concrete is poured into the inner cavity and solidified, forming a re-strengthening structure, which not only enhances the compression resistance, tensile resistance and shear resistance of the concrete member, but also improves the overall durability and service life. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is the overall structure schematic view of the utility model;
[0017] Fig. 2 It is the inner membrane shell structure schematic view of the utility model;
[0018] Fig. 3 It is the outer mold shell structure schematic view of the utility model.
[0019] Mark: 1, inner membrane shell; 2, outer mold shell; 3, circular inner cavity; 4, embedded channel; 5, embedded plate; 6, insertion strip; 7, insertion sleeve; 8, rib; 9, arc piece; 10, waist-shaped hole; 11, notch; 12, bolt hole. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples.
[0021] The reinforcing combined steel formwork has an inner membrane shell 1 and an outer mold shell 2.
[0022] For example, Figs. 1-3As shown, the inner membrane shell 1 is provided with two, two inner membrane shell 1 is mutually adhered in a transverse manner to form a circular cavity 3, the outer side of the circular cavity 3 is symmetrically provided with an outer shell 2, the outer shell 2 is mutually adhered in a longitudinal manner and is sleeved on the outer side of the circular cavity 3, the middle part of the outer wall of the inner membrane shell 1 is provided with an embedding way 4, the inner wall of the outer shell 2 is fixedly connected with an embedding plate 5 on both sides of the edge, the embedding plate 5 is slidingly inserted into the corresponding embedding way 4, the outer wall of the inner membrane shell 1 is bent to form an insertion strip 6 on both sides of the edge, the inner wall of the outer shell 2 is provided with an insertion sleeve 7 at the center, and the insertion strip 6 is slidingly inserted into the corresponding insertion sleeve 7;
[0023] Two inner membrane shells 1 are closely adhered to each other in a transverse manner, and are spliced into a complete circular cavity 3, which provides accurate space shape and size requirements for subsequent concrete pouring;
[0024] The outer shell 2 is adhered to each other in a longitudinal manner and is sleeved on the outer side of the circular cavity 3, forming double reinforcement for the inner membrane shell 1, which not only enhances the overall strength of the formwork, but also ensures the stability and safety during concrete pouring;
[0025] In order to realize the stable connection between the inner membrane shell 1 and the outer shell 2, the mutual insertion method is adopted, the embedding way 4 in the middle part of the outer side of the inner membrane shell 1 matches the embedding plate 5 on the inner wall of the outer shell 2, and the preliminary fixation between the two is realized by sliding insertion, at the same time, the insertion strip 6 on both sides of the outer wall of the inner membrane shell 1 further inserts the insertion sleeve 7 on the inner wall of the outer shell 2, which enhances the stability of the connection, this design makes the embedding plate 5 of the outer shell 2 can be inserted into the same embedding way 4 at the same time, similarly, the insertion strip 6 of the inner membrane shell 1 can also be inserted into an insertion sleeve 7 at the same time, mutual constraint, form a more close connection reinforcement.
[0026] As shown in Figs. 1-3 The outer wall of the inner membrane shell 1 and the outer wall of the outer shell 2 are both provided with ribs 8, during the concrete pouring process, the formwork needs to bear the pressure and lateral pressure from the concrete, the existence of the ribs 8 can effectively disperse these forces, prevent the formwork from deforming or damaging.
[0027] As shown in Figs. 1-3 The top and bottom of the inner membrane shell 1 are both provided with circular arc pieces 9, these circular arc pieces 9 not only enhance the rigidity and sealing of the edge of the formwork, but also facilitate the upper and lower splicing between the inner membrane shells 1, further stacking, forming a higher or more complex circular steel formwork structure.
[0028] As shown in Figs. 1-3 The surface of the circular arc piece 9 is equidistantly provided with a waist-shaped hole 10, which is used for connecting and fixing the circular arc piece 9 or other components with the formwork main body or other structures through bolts.
[0029] As shown in Figs. 1-3As shown in the drawings, the width of the arc piece 9 at the top of the inner membrane shell 1 is smaller than that at the bottom of the inner membrane shell 1, so that the outer mold shell 2 can be smoothly slid into the top when assembled, and the upper arc piece 9 is located outside the outer ring of the outer mold shell 2 after assembly, which provides additional support and stability for the overall structure of the mold plate.
[0030] As shown in the drawings, the surface of the arc piece 9 is provided with a notch 11, and the notch 11 can be conveniently poured into the concrete, and the inner and outer structures of the mold plate and the plug-in connection therebetween can be used to reinforce the concrete three times, thereby ensuring the size accuracy and strength of the poured concrete structure. Figs. 1-3 As shown in the drawings, the surface of the arc piece 9 is provided with a notch 11, and the notch 11 can be conveniently poured into the concrete, and the inner and outer structures of the mold plate and the plug-in connection therebetween can be used to reinforce the concrete three times, thereby ensuring the size accuracy and strength of the poured concrete structure.
[0031] Figs. 1-3 As shown in the drawings, the surface of the arc piece 9 is provided with a notch 11, and the notch 11 can be conveniently poured into the concrete, and the inner and outer structures of the mold plate and the plug-in connection therebetween can be used to reinforce the concrete three times, thereby ensuring the size accuracy and strength of the poured concrete structure.
[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A reinforced composite steel formwork comprising: The inner membrane shell (1) and the outer mold shell (2) are characterized in that the two inner membrane shells (1) are mutually adhered in a transverse manner to form a circular inner cavity (3), the outer mold shells (2) are symmetrically arranged outside the circular inner cavity (3) and are mutually adhered in a longitudinal manner and sleeved outside the circular inner cavity (3), the middle part of the outer wall of the inner membrane shell (1) is provided with an embedding channel (4), the inner wall of the outer mold shell (2) is fixedly connected with embedding plates (5) on both sides, the embedding plates (5) are slidingly inserted into the corresponding embedding channels (4), the both sides of the outer wall of the inner membrane shell (1) are bended to form insertion strips (6), the inner wall of the outer mold shell (2) is provided with an insertion sleeve (7) at the center, and the insertion strips (6) are slidingly inserted into the corresponding insertion sleeves (7).
2. The reinforced composite steel formwork according to claim 1, wherein, The outer wall of the inner membrane shell (1) and the outer wall of the outer mold shell (2) are both provided with ribs (8).
3. The reinforced composite steel formwork according to claim 1, wherein, The top and bottom of the inner membrane shell (1) are both provided with circular arc pieces (9).
4. The reinforced composite steel formwork according to claim 3, wherein, Waist-shaped holes (10) are equidistantly arranged on the surfaces of the circular arc pieces (9).
5. The reinforced composite steel formwork according to claim 3, wherein, The width of the circular arc piece (9) on the top of the inner membrane shell (1) is smaller than that of the circular arc piece (9) on the bottom of the inner membrane shell (1).
6. The reinforced composite steel formwork according to claim 3, wherein, Notches (11) are arranged on the surfaces of the circular arc pieces (9).
7. The reinforced composite steel formwork according to claim 1, wherein, Screw holes (12) are equidistantly arranged at the adhering positions of the inner membrane shell (1) and the outer mold shell (2).