Silica gel concrete pouring mold capable of adjusting pouring shape and hollow and solid

By combining an adjustable telescopic shaping rod with a silicone shaping film, the design solves the problems of fixed concrete casting mold shape, limited material selection, and difficult mold opening. It realizes flexible shape adjustment and diversified functions of the mold, reducing production costs and time costs.

CN223820751UActive Publication Date: 2026-01-23CHINA THREE GORGES UNIV
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Patent Information

Application Number
CN202520430350.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-01-23
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

Existing concrete casting molds have poor flexibility in shape adjustment, limited material selection, single function, and are difficult to open, failing to meet the diverse needs of concrete specimens.

Method used

The design combines an adjustable telescopic shaping rod with a silicone shaping film. By adjusting the position of the shaping rod and the opening and closing of the cover, the shape of the mold can be flexibly adjusted and the hollow and solid structures can be switched. Transparent acrylic sheet material is used to improve the applicability and visibility of the mold.

Benefits of technology

It enables flexible adjustment of mold shape to meet the diverse needs of different concrete specimens, reduces production and time costs, and improves construction efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a hollow-solid silica gel concrete pouring mold capable of adjusting pouring shapes, and belongs to the technical field of concrete pouring molds. The silica gel concrete pouring mold aims at solving the problems that an existing mold is fixed in shape, single in function, high in use cost, limited in material selection and the like, the pouring shape can be flexibly adjusted, and pouring of solid and hollow test pieces is achieved. By adjusting the position of the shaping rod and opening and closing of the cover, flexible change of radians and shapes of the inner side and the outer side of a test piece is achieved, and the pouring requirements of different test pieces are met; meanwhile, slurry leakage is avoided by adopting an elastic silica gel shaping film, and the shape precision of the test piece is ensured; the main body structure made of the transparent acrylic plate is convenient for observing the position of the shaping rod and the grouting process, and the test piece manufacturing success rate is improved; the mold is simple in structure, convenient to operate, reusable and particularly suitable for production occasions where the shapes of test pieces need to be frequently replaced, the production cost is remarkably reduced, and the production efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to concrete pouring technical field especially relates to adjustable pouring shape and empty solid silica gel concrete pouring mould. BACKGROUND

[0002] In the manufacturing industry, as a key forming tool, the performance and characteristics of the mold play a decisive role in production efficiency, product quality and cost control. Especially in the field of concrete pouring technology, the design and manufacture of the mold are directly related to the shape, structure and quality of the concrete test piece. However, there are some problems in the existing concrete pouring mold that need to be solved urgently.

[0003] Most of the existing concrete pouring molds have fixed shapes and lack flexibility. This means that a large amount of time, manpower and resources need to be invested to redesign and manufacture molds for each new shape of product pouring, greatly increasing production costs and time costs. For example, when a pen barrel of a specific shape needs to be poured, the manufacturer often has to re-manufacture a mold specially adapted to the shape of the pen barrel because the mold shape cannot be flexibly adjusted, which undoubtedly increases the complexity of production and waste of resources.

[0004] In addition, the existing mold also has serious shortcomings in functional diversity. Traditional molds often only meet single pouring needs, that is, either pouring solid objects or hollow objects, and cannot meet both needs. In actual production, different products have different requirements for internal structure, sometimes requiring solid to ensure strength, and sometimes requiring hollow to reduce weight or achieve specific functions. But the existing mold has limited functions, and when faced with such diversified needs, it can only be replaced by different molds, which undoubtedly further aggravates the waste of resources and the complexity of production.

[0005] The use cost of the mold is also a problem that cannot be ignored. Especially when the number of objects to be poured is small, according to the existing mold use mode, the already manufactured mold will be discarded after completing this pouring task because it cannot adapt to the needs of subsequent other products. This not only causes the waste of the investment in the early stage of manufacturing the mold, but also occupies the storage space, increases the implicit cost and brings economic losses to the enterprise.

[0006] From the perspective of material, the current common mold materials each have their obvious defects. Although the wooden mold plate has relatively low cost and may be given priority in some small projects sensitive to cost, it has few reuse times, is easy to wear and deform, affects product quality, and the comprehensive cost is not low in the long run. Although the steel mold plate has strong durability and can withstand greater pressure and multiple uses, it is too heavy to carry and install, increasing the construction difficulty and cost, and cannot be used in some places with strict weight restrictions. Although the aluminum mold plate is relatively light, it is too high in cost for some budget-limited enterprises, and its application range is limited.

[0007] For example, CN205630972U discloses a pouring mold, which includes an upper mold and a lower mold. The upper mold is provided with a first inner recess, a positioning column, a silica gel layer and other structures, and the lower mold is provided with a second inner recess and a jack. The purpose is to achieve the ease of use and stability of the mold through specific structural design. Although this patent improves the applicability and flexibility of the mold to some extent, it still has some technical defects and deficiencies:

[0008] Shape adjustment limitation: Although the mold achieves a certain adjustment ability to the shape of the poured object through the design of the inner recess and the positioning column, its adjustment range is still limited and cannot fully meet the market demand for highly customized and diversified concrete test pieces. In actual application, for test pieces with complex shapes or variable sizes, new molds still need to be designed and manufactured, increasing production cost and time cost.

[0009] Material limitation: The patent uses ABS plastic as the mold material, which reduces the weight and cost of the mold to some extent, but the strength and wear resistance of ABS plastic are still inferior to metal materials. In the process of long-term high-frequency use, the mold surface is prone to wear and deformation, affecting the quality and precision of the poured test piece. In addition, ABS plastic has limited resistance to high temperature and may not be suitable for some concrete materials that require high-temperature pouring.

[0010] Single function: The mold is mainly suitable for pouring concrete test pieces containing metal reinforcing bars, and has limited applicability to other types of concrete test pieces (such as solid test pieces and test pieces without reinforcing bars). This limits the application range of the mold and cannot meet the market demand for diversified concrete test pieces.

[0011] Difficulty in opening the mold: Although the mold is designed with anti-deviation rods and springs to improve the ease of opening the mold, in actual operation, due to the high strength of the concrete after solidification, the opening process may still have some difficulty and risk. This not only increases the labor intensity of the operators, but also may cause damage to the mold itself.

[0012] In summary, existing concrete casting mold technologies, including the mold technology disclosed in CN205630972U, still have many technical defects and shortcomings in terms of shape adjustment flexibility, material selection, functional diversity, and mold opening convenience. Therefore, an innovative concrete casting mold technology is needed to solve the problems of existing technologies, improve the applicability, flexibility, and economy of molds, and meet the diverse needs of different industries and fields. Summary of the Invention

[0013] The technical problem to be solved by this utility model is to provide an adjustable silicone concrete casting mold with both solid and hollow shapes, thereby solving the specific problems of poor shape adjustment flexibility, limited material selection, single function, and difficulty in mold opening in the field of existing concrete casting molds.

[0014] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an adjustable silicone concrete casting mold with adjustable casting shape and solid / hollow structure, including an outer plastic shell and an inner plastic shell, wherein shaping rods are inserted into the outer plastic shell and the inner plastic shell respectively, and a silicone shaping film is covered on the surface of the outer plastic shell and the inner plastic shell. The shape and solid / hollow structure of the casting specimen can be changed by adjusting the position of the shaping rods.

[0015] In a preferred embodiment, the shaping rod is an adjustable telescopic shaping rod, including a first telescopic shaping rod and a second telescopic shaping rod, which are respectively disposed on the outer shaping shell and the inner shaping shell. The inner and outer curvature and shape of the specimen are changed by adjusting the telescopic length of the telescopic shaping rod.

[0016] In a preferred embodiment, the telescopic ends of the first and second telescopic shaping rods are equipped with silicone suction cups, which are connected to the silicone shaping film for molding the surface of the casting specimen.

[0017] In a preferred embodiment, the inner plastic shell is mounted on the cover, and the cover is rotatably mounted on the outer plastic shell. When the cover is closed, a casting space for a hollow specimen is formed; when the cover is open, a casting space for a solid specimen is formed.

[0018] In a preferred embodiment, the cover is provided with a grouting hole for injecting concrete into the mold.

[0019] In a preferred embodiment, a hanging post is installed on the cover, the inner plastic shell is detachably installed on the hanging post, and the cover is also equipped with a hanging lock for locking the cover and the outer plastic shell together as one unit.

[0020] In a preferred embodiment, the mold further includes a set of support structures disposed at the bottom of the outer plastic shell.

[0021] In a preferred embodiment, the outer and inner molded shells are made of transparent acrylic sheets.

[0022] In a preferred embodiment, the silicone shaping film is an elastic silicone shaping film that adheres closely to the surface of the silicone suction cup with a smooth transition.

[0023] The adjustable casting shape and hollow / solid silicone concrete casting mold provided by this utility model has the following beneficial effects:

[0024] 1. This utility model introduces the combination of a telescopic mechanism and a flexible membrane (silicone shaping membrane), which enables the template shape to be flexibly adjusted. It effectively solves the specific problems existing in the field of concrete pouring molds, such as poor shape adjustment flexibility, limited material selection, single function, and difficulty in mold opening, and greatly improves the adaptability and versatility of the template.

[0025] 2. The shaping rod of this utility model is set as an adjustable telescopic shaping rod. The top is equipped with a silicone suction cup for adhering to the elastic silicone shaping film to maintain stability. The shaping rods inserted on the outer and inner shaping shells can be flexibly adjusted in position as needed to achieve precise shaping of complex shapes such as the inner and outer curvature, concave and convex of the specimen. This allows the mold to adapt to various complex concrete pouring shapes, saving the cost and time of custom-made special templates.

[0026] 3. The outer and inner shaping shells of this utility model are made of transparent acrylic sheet material. Compared with traditional wood, iron or aluminum materials, it has the advantages of being lightweight, not easily deformed, not easily rusted and moderately priced. The transparent material makes it easy to observe the position of the shaping rod and the grouting process. At the same time, the material is lightweight and durable, easy to transport and install, and can be reused, thus saving costs.

[0027] 4. The design and setting of the silicone molding membrane of this utility model effectively avoids grout leakage during the grouting process and has good molding effect and sealing performance.

[0028] 5. The mold of this utility model is designed with an openable and closable cover. By controlling the opening and closing of the cover, the hollow or solid structure of the specimen can be easily realized to meet the needs of different products. This allows the mold to meet the production needs of both solid and hollow specimens at the same time, greatly improving the practicality of the mold.

[0029] 6. Using transparent acrylic sheet as the main material, this utility model allows operators to clearly observe subtle changes in the position of the molding rod and various problems during the grouting process, such as the flow of the grouting material and the presence of air bubbles, so as to make timely adjustments and improve the success rate and quality of specimen production. At the same time, the selection of lightweight, durable and cost-effective materials such as acrylic sheet and elastic silicone molding film reduces the production and use costs of the mold, and the reusability of the mold further improves its economic efficiency.

[0030] 7. The mold of this utility model, through the flexible adjustment of the shaping rod and the openable and closable design of the lid, effectively overcomes the technical limitations of existing molds in the field of concrete casting molds, which usually have a fixed shape, cannot be flexibly adjusted, and can usually only produce solid specimens. It realizes the diversification of specimen shapes and the easy switching between hollow or solid structures, providing strong support for the efficient development and cost optimization of the manufacturing industry.

[0031] 8. The mold of this utility model has the advantages of flexible shape adjustment, reasonable material selection, multiple functions, convenient mold opening and visual operation, which provides a new technical means for the production of concrete specimens, greatly improves construction efficiency and quality, and reduces production costs and time costs. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0033] Figure 1 This is a front view of the hollow specimen casting mold of this utility model in its working state;

[0034] Figure 2 This is a top view of the hollow specimen casting mold of this utility model in its working state;

[0035] Figure 3 This is a front view of the solid specimen casting mold of this utility model in its working state;

[0036] Figure 4 This is a top view of the solid specimen casting mold of this utility model in its working state;

[0037] Figure 5 This is a schematic diagram of the assembly of the telescopic shaping rod and the silicone mold of this utility model;

[0038] Figure 6 This is a three-dimensional schematic diagram of the working state of the hollow specimen casting mold of this utility model.

[0039] Figure 7 This is a three-dimensional schematic diagram of the working state of the solid specimen casting mold of this utility model;

[0040] In the diagram: 1. Cover; 2. First telescopic shaping rod; 3. Outer shaping shell; 4. Inner shaping shell; 5. Silicone shaping film; 6. Silicone suction cup; 7. Grouting hole; 8. Hanging column; 9. Anti-theft lock; 10. Support column; 11. Second telescopic shaping rod. Detailed Implementation

[0041] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0042] Example 1

[0043] like Figures 1 to 7 As shown, this utility model discloses an adjustable casting shape and hollow / solid silicone concrete casting mold, comprising an outer molding shell 3 and an inner molding shell 4, both made of transparent acrylic sheets to ensure the mold's durability and transparency, facilitating observation of the internal structure. Adjustable telescopic molding rods, namely a first telescopic molding rod 2 and a second telescopic molding rod 11, are inserted into the outer molding shell 3 and the inner molding shell 4, respectively. These rods change the inner and outer curvature and shape of the specimen by adjusting their telescopic length.

[0044] A silicone suction cup 6 is installed at the telescopic end of the shaping rod. The silicone suction cup 6 is connected to the silicone shaping film 5. The silicone shaping film 5 is an elastic silicone shaping film that adheres closely to the surface of the silicone suction cup 6 and has a smooth transition, covering the surfaces of the outer shaping shell 3 and the inner shaping shell 4. This design avoids grout leakage during the grouting process while ensuring good shaping effect.

[0045] The inner molded shell 4 is mounted on the cover 1, and the cover 1 is rotatably mounted on the outer molded shell 3. When the cover 1 is closed, a casting space for hollow specimens is formed; when the cover 1 is open, a casting space for solid specimens is formed. The cover 1 is provided with grouting holes 7 for pouring concrete into the mold. In addition, the cover 1 is also equipped with a suspension column 8 and a suspension lock 9. The inner molded shell 4 is detachably mounted on the suspension column 8, and the suspension lock 9 is used to securely connect the cover 1 and the outer molded shell 3 as a single unit, ensuring stability during the casting process.

[0046] In practical use, the specific implementation steps are as follows:

[0047] Step 1: Determine the shape of the required specimen using drawings or drawing software, and determine whether it is a solid or hollow structure.

[0048] Step 2: Adjust the positions of the first telescopic shaping rod 2 and the second telescopic shaping rod 11 so that they are attached to the predetermined shape by the silicone suction cup 6 and the silicone shaping film 5;

[0049] Step 3: If making a hollow specimen, close the cover 1 and pour concrete into the mold through the grouting hole 7; if making a solid specimen, first open the cover 1, adjust the position of the inner plastic shell 4, and then grout.

[0050] Step 4: After the concrete has hardened, open the hanging lock 9, remove the mold, carefully take out the specimen, and clean the inside of the mold for future use.

[0051] Example 2

[0052] In another preferred embodiment, based on Embodiment 1, the difference lies in the adjustment mechanism of the shaping rod. In this embodiment, the first telescopic shaping rod 2 and the second telescopic shaping rod 11 not only have telescopic functions, but can also slide on a preset track to more precisely control the position of the shaping rod. This design allows the mold to adapt to more complex shape requirements and improves the molding accuracy of the specimen.

[0053] Example 3

[0054] In another preferred embodiment, based on embodiments 1 and 2, the difference between this embodiment and embodiment 1 lies in the structural design of the lid 1.

[0055] In this embodiment, the design of the lid 1 has been optimized. The lid 1 in this embodiment adopts a split structure, including multiple sub-lids, each sub-lid corresponding to a part of the mold. By independently controlling the opening and closing of each sub-lid, more complex hollow structures can be achieved, such as multi-layered hollow or partially hollow structures.

[0056] When using the mold in this embodiment, the operation process is similar to that in embodiments 1 and 2, but attention should be paid to the adjustment method of the shaping rod and the opening and closing method of the cover 1. First, adjust the position of the shaping rod according to the shape requirements of the specimen using the track or adjustment mechanism. Then, independently control the opening and closing of each sub-cover according to the hollow structure requirements of the specimen. Finally, perform the pouring operation. After pouring is completed, wait for the material to solidify before removing the specimen.

[0057] Example 4

[0058] In another preferred embodiment, based on Embodiment 1, in order to further demonstrate the versatility of this utility model, this embodiment provides two examples of specimen fabrication with different shapes.

[0059] Example 1: Making a pen holder specimen with a curved shape. First, by adjusting the position and extension length of the first telescopic shaping rod 2 and the second telescopic shaping rod 11, the inner and outer curves of the pen holder are formed. Then, the lid 1 is closed, and concrete is poured into the mold through the grouting hole 7. After the concrete has solidified, the specimen is removed, and a pen holder specimen with the required curvature is obtained.

[0060] Example 2: Fabricating a hollow sphere specimen with an internal structure. In this example, in addition to adjusting the position and extension length of the molding rod, the internal structure of the sphere also needs to be formed by adjusting the position and shape of the inner molding shell 4. Then, the cover 1 is closed, and concrete is poured into the mold through the grouting hole 7. After the concrete has solidified, the specimen is removed, resulting in a hollow sphere specimen with an internal structure.

[0061] Through detailed descriptions of three specific embodiments, the technical solution and beneficial effects of the adjustable casting shape and hollow / solid silicone concrete casting mold are fully demonstrated. The mold of this utility model has advantages such as flexible shape adjustment, diverse functions, low material cost, and durability, providing a new technical means for the preparation of concrete specimens.

[0062] In a preferred embodiment, the telescopic ends of the first telescopic shaping rod 2 and the second telescopic shaping rod 11 are equipped with silicone suction cups 6, which are connected to the silicone shaping film 5 and used for shaping the surface of the casting specimen. The above arrangement can ensure that the silicone shaping film 5 is tightly attached to the area to be cast, effectively preventing the casting material from overflowing. At the same time, the adsorption force of the silicone suction cups 6 enhances the stability of the shaping structure and improves the accuracy and consistency of the specimen molding.

[0063] In a preferred embodiment, the inner plastic shell 4 is mounted on the cover 1, and the cover 1 is rotatably mounted on the outer plastic shell 3. When the cover 1 is closed, a casting space for a hollow specimen is formed; when the cover 1 is open, a casting space for a solid specimen is formed. This configuration allows the mold to flexibly adapt to the preparation requirements of different specimens, improving the mold's versatility and practicality. At the same time, the close fit between the inner plastic shell 4, the outer plastic shell 3, and the cover 1 ensures the stability of the casting process and the casting quality.

[0064] In a preferred embodiment, the cover 1 is provided with a grouting hole 7 for injecting concrete into the mold; the above configuration effectively improves the injection efficiency of the mold. At the same time, the edge of the cover 1 is designed with a sealing groove 6, which is used in conjunction with the sealing strip to ensure no leakage during the grouting process, maintain stable pressure inside the mold, and improve the quality of the concrete product.

[0065] In a preferred embodiment, a hanging post 8 is installed on the cover 1, and the inner plastic shell 4 is detachably installed on the hanging post 8. The cover 1 is also equipped with a hanging lock 9, which is used to lock the cover 1 and the outer plastic shell 3 together. The above configuration allows the entire device to be conveniently suspended and stored by the hanging post 8 when not in use, saving space. At the same time, the design of the hanging lock 9 ensures a stable connection between the inner plastic shell 4, the outer plastic shell 3, and the cover 1, improving the overall stability and portability.

[0066] In a preferred embodiment, the mold further includes a set of support structures 10 disposed at the bottom of the outer plastic shell 3; the above configuration can enhance the stability of the outer plastic shell 3 during the injection molding process, prevent the mold from deforming or shifting due to injection pressure, and facilitate the positioning and fixing of the mold during installation and disassembly, thereby improving the overall reliability and service life of the mold.

[0067] In a preferred embodiment, the outer molded shell 3 and the inner molded shell 4 are made of transparent acrylic sheets. This configuration allows users to clearly observe the internal structure and working status, while the transparent material gives the product a modern technological feel, enhancing its overall aesthetics and visual appeal.

[0068] In a preferred embodiment, the silicone shaping film 5 is an elastic silicone shaping film that is closely attached to the surface of the silicone suction cup 6 with a smooth transition. This configuration not only improves the fit between the silicone shaping film 5 and the silicone suction cup 6, ensuring the sealing performance of the suction cup, but also effectively avoids safety hazards caused by sharp edges, making the overall structure more stable and durable, and suitable for adsorption operations in various complex environments.

[0069] In summary, this utility model proposes an adjustable silicone concrete casting mold for both hollow and solid forms. By introducing adjustable telescopic shaping rods (including a first telescopic shaping rod 2 and a second telescopic shaping rod 11), it solves the problem of fixed shape and inflexible adjustment in traditional concrete casting molds, achieving flexible shape changes. A silicone suction cup 6 is installed at the telescopic end of the shaping rod and connected to the silicone shaping film 5, which not only avoids grout leakage during the grouting process but also enhances the shaping effect and ensures the accuracy of the specimen shape. Simultaneously, the cover 1 is rotatably mounted on the outer shaping shell 3, and the inner shaping shell 4 is detachably mounted on the cover 1, allowing the mold to easily switch between hollow and solid specimen casting spaces, greatly improving the mold's practicality and flexibility. Furthermore, using transparent acrylic sheet as the main material of the mold reduces its weight and cost while improving its transparency and durability, allowing users to clearly observe the internal conditions of the mold and make timely adjustments and monitoring. This solution breaks through the limitations of fixed mold shapes by adjusting the position and extension length of the shaping rod, providing a new approach to the design of concrete casting molds. The ingenious design of the cover 1 and inner shaping shell 4 adapts to the needs of producing a wider variety of specimens, improving the mold's practicality and market competitiveness. Combined with a transparent acrylic sheet and innovative structure, it creates a novel concrete casting mold that demonstrates significant advantages in shape flexibility, functional diversity, cost control, and material selection, providing new technical means and ideas for design in this field.

Claims

1. An adjustable casting shape and hollow / solid silicone concrete casting mold, characterized in that: It includes an outer plastic shell (3) and an inner plastic shell (4), on which plastic rods are inserted respectively, and a silicone plastic film (5) covering the surface of the outer plastic shell (3) and the inner plastic shell (4). The shape and solidity of the casting specimen can be changed by adjusting the position of the plastic rods.

2. The adjustable casting shape and hollow / solid silicone concrete casting mold according to claim 1, characterized in that: The shaping rod is an adjustable telescopic shaping rod, including a first telescopic shaping rod (2) and a second telescopic shaping rod (11), which are respectively set on the outer shaping shell (3) and the inner shaping shell (4). The inner and outer curvature and shape of the specimen can be changed by adjusting the telescopic length of the shaping rod.

3. The adjustable casting shape and hollow / solid silicone concrete casting mold according to claim 2, characterized in that: The first telescopic shaping rod (2) and the second telescopic shaping rod (11) are equipped with silicone suction cups (6) at their telescopic ends. The silicone suction cups (6) are connected to the silicone shaping film (5) and are used to shape the surface of the casting specimen.

4. The adjustable casting shape and hollow / solid silicone concrete casting mold according to claim 3, characterized in that: The inner plastic shell (4) is installed on the cover (1), and the cover (1) is rotatably installed on the outer plastic shell (3). When the cover (1) is closed, a casting space for a hollow specimen is formed; when the cover (1) is opened, a casting space for a solid specimen is formed.

5. The adjustable casting shape and hollow / solid silicone concrete casting mold according to claim 4, characterized in that: The cover (1) is provided with a grouting hole (7) for injecting concrete into the mold.

6. The adjustable casting shape and hollow / solid silicone concrete casting mold according to claim 5, characterized in that: The cover (1) is equipped with a hanging column (8), and the inner plastic shell (4) is detachably installed on the hanging column (8). The cover (1) is also equipped with a hanging lock (9) for locking the cover (1) and the outer plastic shell (3) together.

7. The adjustable casting shape and hollow / solid silicone concrete casting mold according to claim 6, characterized in that: The mold also includes a set of support structures (10) disposed at the bottom of the outer plastic shell (3).

8. The adjustable casting shape and hollow / solid silicone concrete casting mold according to claim 7, characterized in that: The outer plastic shell (3) and the inner plastic shell (4) are made of transparent acrylic sheets.

9. The adjustable casting shape and hollow / solid silicone concrete casting mold according to claim 8, characterized in that: The silicone shaping film (5) is an elastic silicone shaping film that is closely attached to the surface of the silicone suction cup (6) with a smooth transition.

Citation Information

Patent Citations

  • Pouring mold

    CN205630972U