Connecting structure of concrete flexible mold and rigid mold
By creating a vacuum adsorption system through air chambers and suction holes within the rigid mold, and combining this with connecting plates and pipe structures, the problems of easy deformation and inconvenient assembly of flexible molds are solved, achieving stable mold connection and enhanced rigidity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU HONGYI BUILDING MATERIAL MACHINERY
- Filing Date
- 2026-03-18
- Publication Date
- 2026-04-24
AI Technical Summary
The existing rigid mold and flexible mold are difficult to connect and assemble, and the flexible mold is prone to deformation during casting and requires external constraints.
Design a connection structure in which a rigid mold wraps a flexible mold, with an internal air cavity and suction hole. Vacuum adsorption is formed through the suction hole. The mold separation is achieved by connecting plates and connecting pipes, and the rigidity is enhanced by internal and external reinforcing ribs.
It achieves stable fixing and convenient disassembly of flexible molds, enhances the overall rigidity and strength of rigid molds, and ensures the sealing performance and assembly accuracy of molds.
Smart Images

Figure CN224158585U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to a connection structure for a flexible concrete mold and a rigid mold. Background Technology
[0002] When casting concrete parts of various sizes, molds are required. Molds include flexible molds and rigid molds. Flexible molds are less expensive, but they have poor rigidity and will deform during casting. Therefore, they need to be constrained by rigid molds on the outside. The existing connection and assembly of rigid and flexible molds is relatively troublesome. Therefore, a new connection structure is designed to solve this problem. Utility Model Content
[0003] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.
[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a connection structure for a flexible concrete mold and a rigid mold.
[0005] To achieve the above objectives, the technical solution of this utility model is: a connection structure for a flexible concrete mold and a rigid mold, comprising a flexible mold and a rigid mold, wherein the rigid mold is wrapped around the outside of the flexible mold, an air cavity is provided inside the rigid mold, a plurality of air suction holes are provided in the rigid mold and communicating with the air cavity, an air extraction hole is provided on the rigid mold, and a valve is provided at the air extraction hole;
[0006] The rigid mold includes two separate molds, which are connected to each other by a connecting mechanism. Each of the two separate molds has an air cavity, and the two air cavities are connected to each other by a communicating mechanism.
[0007] The connecting mechanism includes four connecting plates, which are respectively disposed on both sides of the two molds, and each connecting plate has several bolt holes.
[0008] The communication mechanism includes several connecting pipes, each of which is fixedly connected to the splicing surface of one of the molds. Another mold has an insertion hole at a position corresponding to the connecting pipe, and the connecting pipe is inserted into the insertion hole.
[0009] The mold includes an outer plate, an inner plate, and two end plates. Several inner reinforcing ribs are provided between the inner plate and the outer plate. The inner reinforcing ribs are fixedly connected to the inner plate, and each inner reinforcing rib has a connecting hole.
[0010] By adopting the above technical solution, the evacuation port can draw air into the air chamber, making the air chamber a vacuum state. The flexible mold is attached to the suction port. Because it can deform, a portion of it will be drawn into the suction port, thus fixing the flexible mold onto the rigid mold. The vacuum state is maintained by a valve. When it is necessary to disassemble the flexible mold, the valve is opened to release the air. The rigid mold can be divided into two parts, which facilitates the combination and disassembly with the flexible mold. The two parts are fixed together by bolts and nuts through bolt holes on the connecting plate. The air chambers on the two parts are connected by connecting pipes inserted into sockets. This structure of connecting pipes inserted into sockets, together with sealing rings and other accessories to enhance sealing, can achieve a better sealing effect. The cooperation between the connecting pipes and sockets can also position the two parts so that the two sets can be accurately combined. The internal reinforcing ribs enhance the overall rigidity and strength, and the connecting holes allow the spaces separated by the internal reinforcing ribs to be interconnected.
[0011] Preferably, the outer plate, inner plate, two connecting plates, and two end plates form the air cavity. The two end plates are welded to the upper and lower ends of the outer plate and the inner plate, and the two connecting plates are welded to the left and right sides of the outer plate and the inner plate. The width of the connecting plate is greater than the distance between the two outer plates and the inner plate. In this invention, the width of the connecting plate is greater than the distance between the inner plate and the outer plate, allowing the connecting plates to connect to each other through the portion exceeding the distance between the inner and outer plates.
[0012] Preferably, a plurality of external reinforcing ribs are fixed to the outer side of the outer plate. This utility model utilizes external reinforcing ribs to enhance the overall rigidity and strength.
[0013] Preferably, the width of the end plate is greater than the distance between the two outer plates and the inner plate, and the end plate has a plurality of connecting holes. The end plate of this invention can be connected to another set of molds by bolts and nuts passing through the connecting holes along the portion extending beyond the distance between the outer and inner plates.
[0014] Preferably, a number of reinforcing columns are provided between the two end plates. This invention utilizes the reinforcing columns to enhance the overall strength and rigidity of the rigid mold.
[0015] Preferably, a reinforcing bracket is provided on the outer side of the rigid mold. This invention utilizes the reinforcing bracket to enhance the overall rigidity of the rigid mold.
[0016] In summary, the beneficial effects of this utility model are:
[0017] 1. The air extraction port can draw air into the air chamber, making the air chamber a vacuum state. The flexible mold is attached to the air extraction port. Because it can deform, a part of it will be drawn into the air extraction port, so that the flexible mold can be fixed on the rigid mold. The vacuum state can be maintained by the valve. When it is necessary to disassemble the flexible mold, the valve is opened to release the air.
[0018] 2. The rigid mold can be divided into two parts, which facilitates the combination and disassembly with the flexible mold. The two parts are fixed together by bolts and nuts through bolt holes on the connecting plate. The air cavities on the two parts are connected by connecting pipes inserted into sockets. This structure of connecting pipes inserted into sockets, together with sealing rings and other accessories to enhance sealing, can achieve a better sealing effect. The cooperation between the connecting pipes and sockets can also position the two parts so that the two sets can be accurately combined.
[0019] 3. The rigid mold has better rigidity and strength by using internal reinforcing ribs, external reinforcing ribs, reinforcing columns and reinforcing frames. The internal reinforcing ribs have connecting holes so that the air chamber is not separated.
[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.
[0021] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.
[0022] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0023] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0024] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the longitudinal cross-section structure;
[0027] Figure 2 This is a schematic diagram of the cross-sectional structure.
[0028] Explanation of main reference numerals: 1. Flexible mold; 2. Rigid mold; 3. Air cavity; 4. Suction hole; 5. Valve; 6. Connecting plate; 7. Connecting pipe; 8. Outer plate; 9. Inner plate; 10. End plate; 11. Inner reinforcing rib; 12. Connecting hole; 13. Outer reinforcing rib; 14. Connecting hole; 15. Reinforcing column; 16. Reinforcing bracket; 17. Suction hole. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0030] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0032] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0033] like Figure 1-2 As shown, a connection structure for a concrete flexible mold and a rigid mold includes a flexible mold 1 and a rigid mold 2. The rigid mold 2 is wrapped around the outside of the flexible mold 1. An air cavity 3 is opened inside the rigid mold 2. Several air suction holes 4 are opened in the rigid mold 2 and communicate with the air cavity 3. An air extraction hole 17 is opened on the rigid mold 2, and a valve 5 is provided at the air extraction hole 17.
[0034] By adopting the above technical solution, the air extraction hole 17 can draw air into the air chamber 3, making the air chamber 3 a vacuum state. The flexible mold 1 is attached to the air suction hole 4. Since it can deform, it will be partially sucked into the air suction hole 4, so that the flexible mold 1 can be fixed on the rigid mold 2. The vacuum state can be maintained by the valve 5. When it is necessary to disassemble the flexible mold 1, the valve 5 is opened to release the air.
[0035] The rigid mold 2 includes two separate molds, which are connected to each other by a connecting mechanism. Each of the two separate molds has an air cavity 3, which are connected to each other by a connecting mechanism.
[0036] The connecting mechanism includes four connecting plates 6, which are respectively set on both sides of the two molds, and each connecting plate 6 has several bolt holes.
[0037] The connecting mechanism includes several connecting pipes 7, which are all fixedly connected to the splicing surface of one of the molds. Another mold has an insertion hole at the position corresponding to the connecting pipe 7, and the connecting pipe 7 is inserted into the insertion hole.
[0038] The mold includes an outer plate 8, an inner plate 9, and two end plates 10. The outer plate 8, inner plate 9, two connecting plates 6, and two end plates 10 form an air cavity 3. The two end plates 10 are welded to the upper and lower ends of the outer plate 8 and the inner plate 9. The two connecting plates 6 are welded to the left and right sides of the outer plate 8 and the inner plate 9. The width of the connecting plates 6 is greater than the distance between the two outer plates 8 and the inner plate 9.
[0039] Several inner reinforcing ribs 11 are provided between the inner plate 9 and the outer plate 8. The inner reinforcing ribs 11 are fixedly connected to the inner plate 9, and each inner reinforcing rib 11 has a connecting hole 12.
[0040] Several external reinforcing ribs 13 are fixed on the outer side of the outer plate 8.
[0041] The width of the end plate 10 is greater than the distance between the two outer plates 8 and the inner plate 9, and the end plate 10 has several connecting holes 14.
[0042] Several reinforcing columns 15 are provided between the two end plates 10.
[0043] A reinforcing bracket 16 is provided on the outside of the rigid mold 2.
[0044] It should be noted that many specific details have been set forth in the above description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
Claims
1. A connection structure for a flexible concrete mold and a rigid concrete mold, comprising a flexible mold (1) and a rigid mold (2), characterized in that: The rigid mold (2) is wrapped around the outside of the flexible mold (1). An air cavity (3) is provided inside the rigid mold (2). Several air suction holes (4) connected to the air cavity (3) are provided in the rigid mold (2). An air extraction hole (17) is provided on the rigid mold (2). A valve (5) is provided at the air extraction hole (17). The rigid mold (2) includes two sub-molds, which are connected to each other by a connecting mechanism. Each sub-mold has an air cavity (3), and the two air cavities (3) are connected to each other by a connecting mechanism. The connecting mechanism includes four connecting plates (6), which are respectively disposed on both sides of the two molds, and each connecting plate (6) has several bolt holes. The communication mechanism includes several connecting pipes (7), each of which is fixedly connected to the splicing surface of one of the molds. Another mold has an insertion hole at a position corresponding to the connecting pipe (7), and the connecting pipe (7) is inserted into the insertion hole. The mold includes an outer plate (8), an inner plate (9) and two end plates (10). A number of inner reinforcing ribs (11) are provided between the inner plate (9) and the outer plate (8). The inner reinforcing ribs (11) are fixedly connected to the inner plate (9). Each inner reinforcing rib (11) has a connecting hole (12).
2. The connection structure between the flexible and rigid concrete molds according to claim 1, characterized in that: The outer plate (8), inner plate (9), two connecting plates (6) and two end plates (10) form the air cavity (3). The two end plates (10) are welded to the upper and lower ends of the outer plate (8) and the inner plate (9). The two connecting plates (6) are welded to the left and right sides of the outer plate (8) and the inner plate (9). The width of the connecting plate (6) is greater than the distance between the two outer plates (8) and the inner plate (9).
3. The connection structure between the flexible and rigid concrete molds according to claim 1, characterized in that: Several reinforcing ribs (13) are fixed on the outer side of the outer plate (8).
4. The connection structure between the flexible and rigid concrete molds according to claim 2, characterized in that: The width of the end plate (10) is greater than the distance between the two outer plates (8) and the inner plate (9), and the end plate (10) is provided with a plurality of connecting holes (14).
5. The connection structure between the flexible and rigid concrete molds according to claim 4, characterized in that: Several reinforcing columns (15) are provided between the two end plates (10).
6. The connection structure between the flexible and rigid concrete molds according to claim 1, characterized in that: A reinforcing bracket (16) is provided on the outside of the rigid mold (2).