Positioning device for single-side formwork
By adopting components such as prefabricated support frames, modular aluminum formwork, and limiting devices, the construction complexity and common quality problems of traditional single-sided formwork technology have been solved, achieving efficient and environmentally friendly construction results and reducing costs and material waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAOYE GRP CORP
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional single-sided formwork construction methods suffer from problems such as complex construction, frequent quality defects, large material waste, and poor environmental and energy-saving effects, making it difficult to meet the construction quality requirements of modern buildings.
The system employs prefabricated support frames, modular aluminum formwork, limiting devices, embedded parts, and multi-section reinforcing bolts, combined with double-guide horizontal and vertical keels, to form a stable support frame that ensures the stability and verticality of the formwork. The adjustable limiting devices and modular aluminum formwork also improve construction accuracy and material reuse rate.
Simplify construction processes, improve construction efficiency, reduce common quality defects, reduce material waste, conform to environmental protection and energy conservation concepts, and reduce costs.
Smart Images

Figure CN224300419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete construction, specifically a positioning device for single-sided formwork. Background Technology
[0002] With the rapid development of the construction industry, engineering projects are becoming increasingly diversified and complex. In the construction of cast-in-place concrete exterior walls, due to limitations of the construction site conditions (such as insufficient space on the outside of the exterior wall), the traditional double-sided formwork method (using tie bolts for reinforcement on both sides) is often not feasible. Therefore, single-sided formwork technology has gradually become a common construction method.
[0003] However, the traditional single-sided formwork process has the following shortcomings:
[0004] The construction process is complex: Traditional single-sided formwork often uses steel pipes, templates and tie bolts for construction, which limits the operating space, makes construction difficult, and has a long construction period.
[0005] Frequent quality defects: Due to inaccurate positioning and inadequate reinforcement, the single-sided formwork process is prone to quality problems such as bulging of concrete formwork, leakage of grout at the joint between layers, and misalignment, which seriously affect the construction quality and the safety of the building.
[0006] High material waste: In traditional single-sided formwork construction, materials such as templates and tie bolts can often only be used once and cannot be reused, resulting in high material waste and high costs.
[0007] Poor environmental protection and energy saving effects: The extensive use of disposable materials not only increases costs but also does not conform to the concept of sustainable development in modern society, putting pressure on the environment.
[0008] Modern construction projects have increasingly higher requirements for construction quality, especially in the construction of cast-in-place concrete walls, where it is necessary to ensure the verticality, flatness, and integrity of the walls. Traditional single-sided formwork techniques are no longer sufficient to meet these requirements. Utility Model Content
[0009] The present invention aims to overcome the defects of the prior art and provide a positioning device for single-sided formwork, thereby solving the common quality problems of cast-in-place concrete walls caused by inaccurate positioning when using single-sided formwork technology.
[0010] To solve the above-mentioned technical problems, this utility model is implemented as follows:
[0011] A positioning device for a single-sided formwork support, characterized in that it comprises:
[0012] Prefabricated support frames are used to provide support for the formwork and are installed on one side of the wall to be constructed;
[0013] The modular aluminum formwork is set in the space between the prefabricated support frame and the wall to be constructed, and is used for concrete pouring and shaping.
[0014] A limiting device is installed on the finished support frame to ensure the stability and accuracy of the finished support frame during the concrete pouring process;
[0015] Embedded parts and anchor bolts are used to fix the finished support frame to the construction ground;
[0016] Multi-section reinforcing bolts are used to reinforce the connection between the finished support frame and the splicable aluminum formwork.
[0017] The positioning device for a single-sided formwork is characterized in that the finished product support frame includes:
[0018] Trapezoidal brackets are used to support the modular aluminum formwork;
[0019] The heightening section is adjustablely connected to the trapezoidal bracket to adjust the height of the support frame according to the height of the wall to be constructed.
[0020] The positioning device for a single-sided formwork is characterized in that: the limiting device includes an initial limiting, a middle limiting, and an end limiting, all of which are adjustable and are respectively installed at the initial, middle, and end positions of the trapezoidal support.
[0021] The positioning device for a single-sided formwork is characterized in that it further includes a double-guide-rail horizontal keel and a matching vertical keel. The vertical keel is vertically connected to the double-guide-rail horizontal keel through a connector to form a stable support frame and is installed between the aluminum formwork and the finished support frame to enhance the stability and verticality of the formwork.
[0022] The positioning device for single-sided formwork is characterized in that: the splicable aluminum formwork is composed of multiple aluminum plates spliced together, and the aluminum plates are connected by special connectors to form an integral formwork structure to adapt to the shape and size of the wall to be constructed.
[0023] The beneficial effects of this utility model are as follows: As can be seen from the above technical solution, this application provides a positioning device for single-sided formwork, using a prefabricated support frame, including trapezoidal brackets and heightening sections. This design ensures the stability and rigidity of the support frame, effectively resisting lateral pressure during concrete pouring and preventing formwork bulging. The use of multiple reinforcing bolts further enhances the connection strength between the support frame and the formwork, ensuring that the formwork does not shift during pouring. The device is equipped with multiple limiting devices, including initial, middle, and terminal limits, all of which are adjustable. These limiting devices ensure the precise position of the formwork during pouring, reducing gaps at interlayer joints and effectively preventing grout leakage. The use of splicable aluminum formwork provides better rigidity and tighter joints compared to traditional wooden formwork, further reducing the possibility of grout leakage. The design of double-guide rail horizontal joists and their matching vertical joists allows for precise control of the verticality and horizontality of the formwork, ensuring that the wall does not misalign at interlayer joints.
[0024] The device features a simple construction process and convenient operation, reducing construction difficulty and time, and improving construction efficiency. The materials can be reused multiple times, which aligns with the concept of environmental protection and energy conservation, reduces the wear and tear of traditional formwork, and lowers construction costs. Attached Figure Description
[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:
[0026] Figure 1 This is a schematic diagram of the structure of this application.
[0027] Figure 2 This is a schematic diagram of the finished support frame.
[0028] Figure 3 This is a schematic diagram of the horizontal and vertical keels of the double guide rails. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.
[0030] like Figure 1-3 As shown: A positioning device for a single-sided formwork, comprising:
[0031] The prefabricated support frame 1 is used to provide support for the template and is set on one side of the wall 2 to be constructed;
[0032] The splicable aluminum formwork 3 is set in the space between the prefabricated support frame and the wall to be constructed for concrete pouring and shaping;
[0033] A limiting device is installed on the finished support frame to ensure the stability and accuracy of the finished support frame during the concrete pouring process;
[0034] Embedded parts and anchor bolts 5 are used to fix the finished support frame to the construction ground;
[0035] The multi-section reinforcing bolts 6 are used to reinforce the connection between the finished support frame and the splicable aluminum formwork.
[0036] The finished product support frame includes:
[0037] Trapezoidal bracket 11 is used to support the splicable aluminum template;
[0038] The heightening section 12 is adjustablely connected to the trapezoidal bracket to adjust the height of the support frame according to the height of the wall to be constructed, providing a stable support foundation.
[0039] The trapezoidal bracket and extension section can be flexibly adjusted according to the construction height to ensure that the support frame can adapt to the construction needs of walls of different heights.
[0040] Compared to traditional steel pipe supports, prefabricated support frames offer greater stability and adjustability, effectively preventing formwork from shifting or becoming unstable during the pouring process.
[0041] The limiting device includes an initial limiting device 41, a middle limiting device 42, and an end limiting device 43, all of which are adjustable and are respectively installed at the initial, middle, and end positions of the trapezoidal bracket.
[0042] It also includes a double-rail horizontal keel 7 and a matching vertical keel 8. The vertical keel is vertically connected to the double-rail horizontal keel through connectors to form a stable support frame and is installed between the aluminum template and the finished support frame to enhance the stability and verticality of the template.
[0043] Compared to the traditional single-rail design, the double-rail horizontal keel provides more stable support and reduces the possibility of wall deformation during the pouring process.
[0044] The modular aluminum formwork is composed of multiple aluminum plates, which are connected by special connectors to form an integral formwork structure to adapt to the shape and size of the wall to be constructed.
[0045] Aluminum formwork can be flexibly assembled according to construction needs, adapting to the construction of walls of different shapes and sizes.
[0046] The use of aluminum formwork not only improves construction efficiency, but also reduces quality problems caused by formwork bulging, thereby improving the overall quality and appearance of the wall.
[0047] The above are merely embodiments provided in this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A positioning device for single-sided formwork, characterized in that, It includes: Prefabricated support frames are used to provide support for the formwork and are installed on one side of the wall to be constructed; The modular aluminum formwork is set in the space between the prefabricated support frame and the wall to be constructed, and is used for concrete pouring and shaping. A limiting device is installed on the finished support frame to ensure the stability and accuracy of the finished support frame during the concrete pouring process; Embedded parts and anchor bolts are used to fix the finished support frame to the construction ground; Multi-section reinforcing bolts are used to reinforce the connection between the finished support frame and the splicable aluminum formwork.
2. The positioning device for a single-sided formwork according to claim 1, characterized in that, The finished product support frame includes: Trapezoidal brackets are used to support the modular aluminum formwork; The heightening section is adjustablely connected to the trapezoidal bracket to adjust the height of the support frame according to the height of the wall to be constructed.
3. The positioning device for a single-sided formwork according to claim 2, characterized in that: The limiting device includes an initial limiting device, a middle limiting device, and an end limiting device, all of which are adjustable and are respectively installed at the initial, middle, and end positions of the trapezoidal bracket.
4. The positioning device for a single-sided formwork according to claim 1, characterized in that: It also includes a double-rail horizontal keel and matching vertical keel. The vertical keel is vertically connected to the double-rail horizontal keel through connectors to form a stable support frame and is installed between the aluminum template and the finished support frame to enhance the stability and verticality of the template.
5. A positioning device for a single-sided formwork according to claim 1, characterized in that: The modular aluminum formwork is composed of multiple aluminum plates, which are connected by special connectors to form an integral formwork structure to adapt to the shape and size of the wall to be constructed.