A support formwork with integrated release agent delivery and multi-functional expansion capability
By designing a multi-layered structural formwork, a continuous supply and uniform coating of the release agent are achieved, solving the problems of low formwork construction efficiency, material waste, and uneven coating in existing technologies, thus improving construction efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING NETHONGYE TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, the demolding process of templates is inefficient, the material utilization rate is low, the functional expandability is poor, and the construction is complicated, especially the operation on large-area templates is difficult, resulting in uneven coating, material waste and environmental pollution.
A multi-layer support template is designed, including a structural contact layer, a functional layer, and a flow channel layer. The medium is uniformly supplied and stored through materials such as micropores and felt. Combined with modular design, the release agent is continuously supplied and efficiently coated.
It improves demolding effect, reduces labor intensity, reduces material waste, enhances construction efficiency and coating quality, adapts to different construction needs, and reduces maintenance costs.
Smart Images

Figure CN224452229U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of concrete structure construction equipment technology, and in particular to a formwork support with integrated release agent delivery function and multi-functional expansion capability, which is suitable for the integrated needs of formwork release treatment and related auxiliary functions in the molding process of concrete components such as building engineering and bridge engineering. Background Technology
[0002] In the construction of concrete structures, the formwork system, acting as a molding die, directly determines the dimensional accuracy, surface quality, and forming efficiency of concrete components. Large-scale formwork is particularly prevalent in applications such as large-scale buildings and bridge projects. To ensure that the concrete can smoothly detach from the formwork after hardening, a release agent is typically applied to the formwork surface to create an isolation interface, reducing the adhesion between the concrete and the formwork.
[0003] In existing technologies, the application of release agents mainly relies on manual or mechanical spraying. During actual construction, operators must use handheld sprayers to treat each surface of the formwork, forming a release layer through spray coverage. However, this method has significant limitations when applied to large-area formwork. First, due to the large size and complex structure of the formwork, operators need to frequently move the spraying equipment and adjust the spraying angle and distance, resulting in low work efficiency and high labor intensity. Second, due to limitations in the precision of manual operation, uneven release agent coating thickness and missed areas in corners are prone to occur, thus affecting the release effect and the surface quality of the concrete component.
[0004] A more critical issue is that existing spray-applied processes involve applying the release agent separately from the formwork structure, requiring repeated spraying before each construction phase. This prevents a continuous supply and efficient reuse of the release agent. This method not only wastes a significant amount of material but also easily leads to spray splatter, polluting reinforcing steel components, surrounding equipment, and the construction environment. Furthermore, existing formwork structures are mostly designed for single-function release, making it difficult to accommodate combined functions such as temperature control and wetting. When the concrete hydration reaction releases a large amount of heat or when the ambient temperature fluctuates significantly, the formwork is prone to deformation or thermal expansion and contraction, necessitating a separate cooling system and further increasing the complexity of the construction system.
[0005] In summary, existing technologies have significant shortcomings in terms of formwork demolding efficiency, material utilization, functional expandability, and ease of construction. There is an urgent need to develop a novel formwork support system that integrates the release agent delivery function with the formwork structure and possesses multifunctional adaptability, in order to improve construction efficiency, ensure coating quality, and meet the functional expansion needs under complex working conditions. Utility Model Content
[0006] The purpose of this application is to overcome at least one deficiency of the existing technology and provide a formwork with integrated release agent delivery and multi-functional expansion capabilities. This formwork is suitable for the molding process of concrete structures such as building construction and bridge engineering, and especially optimizes the efficiency, uniformity and environmental adaptability of the formwork demolding process.
[0007] To achieve the above objectives, this application discloses a formwork support with integrated release agent delivery and multi-functional expansion capabilities. The formwork support adopts a multi-layered structure, comprising, from bottom to top, an outer layer, a flow channel layer, a functional layer, and a structural contact layer. The structural contact layer is the working surface that directly contacts the concrete. This layer is made of a structural material with certain strength and wear resistance, and multiple micropores are evenly distributed on its surface. These micropores are used to achieve external penetration and uniform release of the medium, thereby forming a continuous and dense isolation layer on the formwork surface.
[0008] A hollow functional layer is disposed beneath the structural contact layer. This functional layer is entirely closed or semi-closed and is connected to the micropores of the contact layer in the planar direction. It is filled with a filler material with capillary liquid absorption capabilities, such as felt, sponge, or other materials suitable for liquid adsorption and slow release. This filler material absorbs the medium transported by the flow channel layer, achieving uniform liquid supply to the micropores, thereby ensuring the consistency of the coating thickness on the template surface and improving the demolding effect.
[0009] Furthermore, the filling material in the functional layer not only serves as a liquid reservoir during use but also provides a certain liquid buffering capacity. When the medium supply in the flow channel layer fluctuates or stops, the medium already adsorbed in the filling material can still maintain a short-term continuous liquid supply, thereby avoiding problems such as discontinuity or sudden interruption of the coating on the template surface. This characteristic significantly improves the stability and fault tolerance of the system.
[0010] Furthermore, to enhance the maintainability of the functional layers and adapt to different construction needs, the filling material adopts a modular design, embedded within the functional layers in the form of sheet or strip units. When repairing, replacing, or adjusting the type of functional medium, only the filling module needs to be replaced without disassembling the entire template structure, thereby reducing maintenance costs and increasing operational flexibility.
[0011] Below the functional layer is a flow channel layer connected to the functional layer through several micropores. This flow channel layer has several structural ribs, creating multiple interconnected liquid flow channels within the template. The liquid can be fully distributed and diffused within this layer, avoiding the formation of flow dead zones. The design of these flow channels balances structural strength and fluid distribution functionality, ensuring effective liquid transport within the template.
[0012] Furthermore, structural ribs are staggered along the longitudinal and transverse directions of the template, forming a grid-like arrangement to construct a structural system within the template that combines mechanical support and fluid flow guidance. The structural ribs provide load-bearing support through localized contact with the functional and outer layers, while in the remaining non-contact areas, channels for fluid transport are created.
[0013] Furthermore, the outermost layer of the template is configured as an outer layer structure, which has at least one pre-set delivery port for receiving liquid media. This delivery port is connected to the flow channel layer. Through this delivery port, construction personnel can inject the required media into the flow channel layer. After being distributed by the flow channel layer, the media is adsorbed by the functional layer and then uniformly released onto the template surface through the contact layer via the microporous structure, achieving efficient, quantitative, and continuous application of the media.
[0014] Compared with existing technologies, the template provided in this application achieves an integrated design of the release agent delivery process and the template body through structural integration. Its most significant feature is the pre-installed reusable media storage structure within the template, which maintains its liquid storage function even when not completely depleted, effectively preventing waste of the release agent. Furthermore, due to the fixed media delivery path and uniform microporous release, problems such as uneven thickness, missed areas, and splattering caused by manual operation in traditional spraying processes are avoided, improving coating quality and construction efficiency.
[0015] The beneficial effects listed above are not exhaustive of all advantages. Other potential beneficial effects and detailed technical implementation methods will be further disclosed in the embodiments or other descriptive sections of this application. Attached Figure Description
[0016] A better understanding of various aspects of this disclosure will be achieved by reading the following detailed description in conjunction with the accompanying drawings. The positions, dimensions, and extents of the structures shown in the drawings, etc., do not always represent actual positions, dimensions, and extents. In the drawings:
[0017] Figure 1 This is a partial structural diagram of one embodiment disclosed in this application.
[0018] Figure 2 This is a schematic diagram of the structure after removing the filler material according to one embodiment of the present application. Detailed Implementation
[0019] The present disclosure will now be described with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure more complete and to fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments.
[0020] It should be understood that the same reference numerals denote the same elements in all the accompanying drawings. For clarity, the dimensions of certain features may be modified in the drawings.
[0021] It should be understood that the terminology used in this specification is for describing specific embodiments only and is not intended to limit this disclosure. All terms used in this specification (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. For the sake of brevity and / or clarity, techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail; however, where appropriate, such techniques, methods, and apparatus should be considered part of this specification.
[0022] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items.
[0023] In the field of building construction, the application of formwork technology is crucial. The formwork support involved in this embodiment is an innovative design that integrates release agent delivery and multi-functional expansion capabilities. (See attached document.) Figure 1 and 2 The template adopts a multi-layer structure, consisting of an outer layer 1, a flow channel layer 2, a functional layer 3, and a structural contact layer 4 from bottom to top. The layers work together to achieve efficient demolding and many other advantages.
[0024] First, the structural contact layer 4 is a key component of this formwork support. As the working surface that directly contacts the concrete, the choice of material is particularly crucial. In this embodiment, the structural contact layer 4 is made of a structural material with certain strength and wear resistance. While ensuring that this layer can withstand the pressure during concrete pouring and the wear during construction, multiple micropores are evenly distributed on its surface. Fiberglass is the preferred material. The size of these micropores has been carefully designed and calculated; their pore size and distribution density ensure that, in actual use, the medium can effectively penetrate and uniformly release, forming a continuous and dense isolation layer on the formwork surface. This creates an effective barrier between the concrete and the formwork, laying the foundation for subsequent demolding. It should be noted that the specific processing technology of the micropores is well-known to those skilled in the art and will not be described in detail here.
[0025] The lower functional layer 3 is hollow, with an overall closed or semi-closed state, and is connected to the micropores of the structural contact layer 4 in the planar direction. Regarding the selection of the filling material 5, considering its need for capillary liquid absorption capacity, this embodiment uses felt as the filling material 5. Of course, sponge or other materials suitable for liquid adsorption and slow release can also be selected based on the actual application scenario and cost factors. When the flow channel layer delivers the medium to the functional layer 3, the filling material 5 can efficiently absorb the medium and, using its capillary action, uniformly supply the medium to the micropores of the structural contact layer 4, thereby ensuring the consistency of the coating thickness on the template surface and effectively improving the demolding effect. It is worth mentioning that the filling material 5 in the functional layer 3 exhibits unique liquid storage and buffering effects during use. In actual construction, the supply of medium in the flow channel layer 3 inevitably fluctuates or even temporarily stops. However, since the filling material 5 has already adsorbed a certain amount of medium, it can continuously supply liquid to the structural contact layer 4 for a short period of time, effectively avoiding discontinuities or sudden interruptions in the coating on the template surface. This is extremely important for maintaining the stable operation and fault tolerance of the entire template system. The testing methods and related standards for the adsorption performance of filler materials are existing technologies in this field and will not be elaborated here.
[0026] To further enhance the maintainability of the formwork and better adapt to diverse construction needs, in this embodiment, the filling material 5 of functional layer 3 adopts a modular design, embedded inside functional layer 3 in the form of sheet or strip units. When repairing, replacing, or adjusting the type of functional medium, construction personnel do not need to disassemble the entire formwork structure; they only need to operate on specific filling modules, greatly reducing maintenance costs and significantly improving the flexibility of formwork use. It allows for rapid adjustments and optimizations based on different construction projects and process requirements. Details regarding the specific connection methods and sealing treatments of the modular design fall within the scope of what those skilled in the art can flexibly grasp in actual operation using existing technology, and will not be elaborated upon here.
[0027] Below the functional layer 3, a flow channel layer 2 is provided, which is connected to the functional layer through several micropores. The flow channel layer 2 contains several structural ribs 7, which are staggered along the longitudinal and transverse directions of the template, forming a grid-like arrangement. This not only creates multiple interconnected liquid flow channels within the template, ensuring sufficient liquid distribution and diffusion and effectively avoiding flow blind spots, but also balances structural strength with fluid distribution functionality. The structural ribs 7 provide load-bearing support through partial contact with the functional layer 3 and the outer layer 1, while the remaining non-contact areas form channels for fluid transport. This rationally utilizes the internal spatial structure of the template, improving the overall mechanical properties and fluid transport efficiency. The specific shape, dimensions, and mechanical performance requirements of the structural ribs 7 are well-known technologies familiar to those skilled in the art and can be reasonably selected and designed based on the actual application scenario and mechanical analysis results; therefore, they will not be described in detail here.
[0028] As for the outermost layer of the template, namely the outer layer 1, it has at least one pre-installed delivery port 6 for receiving liquid media, which is connected to the flow channel layer 2. During actual construction, workers can conveniently and quickly inject the required media, such as release agent or water, into the flow channel layer 2 through this delivery port 6. After being evenly distributed in the flow channel layer 2, the media is adsorbed by the filling material 5 of the functional layer 3, and then evenly released onto the template surface through the microporous structure of the structural contact layer 4. This achieves efficient, quantitative, and continuous application of the media, greatly optimizing the application process of the release agent and avoiding problems such as uneven thickness, missed areas, and splashing that may occur in traditional spraying processes, significantly improving coating quality and construction efficiency. The specific connection method and sealing structure of the delivery port 6 are conventional techniques in this field, such as threaded connections or flange connections, and will not be described in detail here.
[0029] Compared to traditional template technology, the template provided in this application, through its highly integrated design, successfully combines the release agent delivery process with the template body. Its internally pre-designed reusable media storage structure maintains good liquid retention even when the media is not completely depleted, effectively preventing release agent waste. Simultaneously, the fixed media transport path and uniform microporous release mechanism make the coating process more stable and controllable, providing a more advanced and efficient solution for template applications in building construction, and possessing significant value for widespread application.
[0030] Those skilled in the art should know that the details not elaborated on, such as the specific connection method of the conveying interface 8, the fixing between layers, and the sealing treatment, are all within the scope of known and existing technologies in the field. In practical applications, they can be flexibly selected and implemented according to different equipment and construction environment requirements to ensure that the entire formwork support system can operate stably and efficiently and meet the diverse needs of formwork performance in building construction.
[0031] While exemplary embodiments of this disclosure have been described, those skilled in the art will understand that various changes and modifications can be made to the exemplary embodiments of this disclosure without departing from the spirit and scope thereof. Therefore, all changes and modifications are included within the scope of protection of this disclosure as defined by the claims. This disclosure is defined by the appended claims, and equivalents of those claims are also included.
Claims
1. A formwork panel having integrated release agent delivery and multi-functional expansion capabilities, characterized in that, The formwork adopts a multi-layer structure, which includes an outer layer, a flow channel layer, a functional layer and a structural contact layer from bottom to top. The structural contact layer is the working surface that is in direct contact with the concrete, and multiple micropores are evenly distributed on the surface of the structural contact layer. A hollow functional layer is provided below the structural contact layer. The functional layer is in a closed or semi-closed state. The functional layer is connected to the micropores of the contact layer in the planar direction and is filled with a filler material with capillary liquid absorption capacity. Below the functional layer is a flow channel layer that communicates with the functional layer through several micropores. This flow channel layer has several structural ribs, which construct multiple interconnected liquid flow channels inside the template. The outermost layer of the template is set as an outer layer structure, and at least one conveying interface for receiving liquid medium is pre-set on the outer layer. The conveying interface is connected to the flow channel layer.
2. A form panel with integrated release agent delivery and multi-functional expansion capabilities as defined in claim 1, wherein, The filling material adopts a modular design, and is embedded in the functional layer in the form of sheet or strip units.
3. A form panel with integrated release agent delivery and multi-functional expansion capabilities as defined in claim 1, wherein, The structural ribs are arranged in a staggered pattern along the longitudinal and transverse directions of the template, forming a grid-like structure. The structural ribs provide load-bearing support through local contact with the functional and outer layers, and in the remaining non-contact areas, channels for fluid transmission are formed by design.