Compression-resistant core model profile pipe
By designing a compression-resistant core mold tube, the inner template forms a cavity and is filled with thermal insulation and sound insulation materials. Combined with a space frame and light steel keel, the problems of heavy self-weight and poor thermal insulation performance of traditional concrete walls are solved, achieving lightweight, thermal insulation and sound insulation, and simplified construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE SECOND CONSTR OF CHINA CONSTR EIGHTH ENG DIV
- Filing Date
- 2025-03-26
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional solid concrete walls are heavy, have a strong seismic response, poor thermal insulation performance, and are complex to construct. Furthermore, air-filled sandwich walls are easily punctured, affecting the construction progress.
Design a compression-resistant core mold material tube, with an inner template forming an independent cavity, filled with insulation board and sound insulation board, combined with a space frame and light steel keel, and fixed by connectors to form a cavity dense rib wall structure.
It effectively reduces the self-weight of the wall, improves thermal insulation and sound insulation performance, reduces the amount of concrete used, simplifies the construction process, and enhances impact resistance.
Smart Images

Figure CN224281677U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lightweight wall technology, and in particular to a pressure-resistant core mold material tube. Background Technology
[0002] In the field of building engineering, walls, as a core component of building structures, directly affect the safety, functionality, and economy of buildings. While traditional solid concrete walls possess a certain strength, they have significant drawbacks, such as high self-weight. This large overall weight leads to a dramatic increase in the load on the base layer, resulting in a significantly enhanced seismic response; it also increases foundation and transportation costs; and their thermal insulation performance is poor, as they are composed of cement and aggregate, resulting in a relatively high thermal conductivity, requiring an additional insulation layer after molding, making the construction process complex.
[0003] To address the aforementioned issues, existing technology has proposed a precast concrete hollow sandwich wall (application number 202122051408.X), which uses air bags to fill the interior of two walls, achieving insulation while reducing the wall's weight. However, this structure has certain drawbacks. Sharp objects such as reinforcing bars and steel plates are commonly found on construction sites, easily puncturing the air bags and affecting subsequent construction progress. Utility Model Content
[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a pressure-resistant core mold material tube.
[0005] The technical solution to the technical problem solved by this utility model is as follows:
[0006] This utility model proposes a compression-resistant core template tube, including two sets of inner templates. The two sets of inner templates are spliced together to form a compression-resistant core template tube. The core template tube has several sets of independent cavities inside. The inner template includes several sets of horizontally arranged protrusions. The protrusions of the two inner templates are spliced together to form the cavity. Ear plates are fixed on both sides of the protrusions, and adjacent protrusions are fixedly connected by ear plates.
[0007] Preferably, the protrusion includes two first plates, with a second plate connected between the two first plates, and at least one set of grooves formed on the second plate.
[0008] Preferably, the ear plates on both sides of the inner template are provided with circular slots.
[0009] Preferably, the two second plates in the protrusion are arranged at an inward angle.
[0010] Preferably, the space between the two inner templates is filled with an insulation board and / or a sound insulation board.
[0011] This utility model also proposes a cavity ribbed wall, comprising any of the above-mentioned compression-resistant core mold material tubes; a space frame, the space frame being respectively disposed on both sides of the compression-resistant core mold material; a fiber mesh, the fiber mesh being respectively disposed on the outer sides of the two space frames; a mortar layer, the mortar layer filling the outer side of the compression-resistant core mold material tube, covering the space frame and the fiber mesh; and two sets of light steel keels, the light steel keels being respectively covering the upper and lower sides of the mortar layer to form a cavity ribbed wall.
[0012] Preferably, the mortar layers consist of M15 cement mortar and M10 cement mixed mortar from the inside out.
[0013] Preferably, the compression-resistant core material tube and the space frame are fixed by several sets of connectors.
[0014] Preferably, the connector includes an expansion tube located within a groove, an expansion bolt threaded inside the expansion tube, one end of the expansion bolt extending to the outside of the expansion tube and having an expansion head, the expansion head being engaged with the outer edge of the end of the expansion tube; a bolt is fixed to the other end of the expansion tube, the threaded portion of the bolt having a locking slot, the vertical ribs of the space frame being engaged into the locking slot, and the horizontal ribs overlapping above the bolt; it also includes a top cover, the top cover being threadedly connected to the bolt, positioning the space frame within the locking slot.
[0015] The above technical solution has the following advantages or beneficial effects:
[0016] 1. The compression-resistant core mold tube of this utility model possesses inherent strength, which can largely prevent deformation caused by collisions and protect the integrity of the several sets of cavities formed inside. These cavities reduce the amount of concrete used, effectively lowering the self-weight and reducing the building load. Furthermore, the air layer formed by the cavities significantly reduces heat transfer, achieving efficient thermal insulation. Simultaneously, it also serves to block sound wave transmission.
[0017] 2. In this utility model, the two second plates in the protrusion are arranged in an inwardly inclined manner. This design allows the subsequent concrete pouring to form an inverted trapezoidal structure. Due to its wider top, the external force can be evenly distributed over a larger area, reducing local stress concentration and enabling it to withstand greater impact loads.
[0018] 3. In this invention, an insulation board and / or a sound insulation board are filled between the two inner templates. This forms a "cavity-board-cavity" sandwich structure, which can further improve the overall heat insulation and sound insulation performance.
[0019] 4. In this utility model, the connecting parts are set with grooves to connect the compression-resistant core model material tube to the side grid frame. Compared with the traditional welding or binding process, the single-point installation time can be greatly shortened. Attached Figure Description
[0020] 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.
[0021] Figure 1 This is a three-dimensional structural diagram of the compression-resistant core mold material tube.
[0022] Figure 2 yes Figure 1 The top view in the image.
[0023] Figure 3 It is a cavity ribbed wall formed by using this pressure-resistant core mold material tube.
[0024] Figure 4 yes Figure 3 A top-down view of the light steel keel hidden in the middle.
[0025] Figure 5 yes Figure 3 A schematic diagram of a three-dimensional structure with insulation and / or sound insulation panels.
[0026] Figure 6 This is a schematic diagram showing the connection between the compression-resistant core material tube and the space frame via connectors.
[0027] Figure 7 yes Figure 6 A schematic diagram of the connection structure between a single connector and the space frame.
[0028] Figure 8 yes Figure 7 A half-section view in the middle.
[0029] Explanation of reference numerals in the attached figures:
[0030] a. Compression-resistant core mold material tube; b. Space frame; c. Fiber mesh; d. M15 cement mortar; e. M10 cement mixed mortar; f. Connectors; g. Light steel keel; h. Nail;
[0031] a1, Inner template; a2, Cavity; a3, Protrusion; a31, First plate; a32, Second plate; a33, Groove; a4, Ear plate; a5, Circular slot; a6, Insulation board and / or sound insulation board;
[0032] f1, expansion tube; f2, expansion bolt; f3, expansion head; f4, bolt; f5, bayonet; f6, top cover. Detailed Implementation
[0033] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0034] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] Example 1
[0037] like Figures 1 to 5 As shown, this embodiment proposes a compression-resistant core model tube a, which includes two sets of inner templates a1. The two sets of inner templates a1 are spliced together to form the compression-resistant core model tube a. The core model tube has several sets of independent cavities a2 inside.
[0038] The two inner templates a1 include several sets of horizontally arranged protrusions a3. The protrusions a3 in the two inner templates a1 are spliced together to form the cavity a2 mentioned above. Ear plates a4 are fixed on both sides of the protrusions a3. Adjacent protrusions a3 are fixedly connected by ear plates a4. This fixing can be done by welding or other methods.
[0039] The structure's internal cavity a2 forms an air layer, significantly reducing heat transfer and achieving highly efficient thermal insulation. Furthermore, cavity a2 effectively blocks sound wave transmission, making it particularly suitable for buildings with high sound insulation requirements. On the other hand, the design of cavity a2 reduces the amount of concrete used, effectively lowering the building's weight and reducing the building's load.
[0040] In this embodiment, the lifting does not include the two first plates a31. A second plate a32 is connected between the two first plates a31. At least one set of vertically arranged grooves a33 are formed on the second plate a32. During the subsequent concrete pouring process, the grout flows into the groove a33 and is shaped, which increases the contact area with the concrete, forming a "mechanical interlocking" that makes the profile and the concrete a cohesive whole. In some scenarios, the groove a33 can also be used to assist in construction positioning.
[0041] Furthermore, such as Figure 5 As shown, the two second plates a32 in the protrusion a3 are arranged inwardly. This design allows the subsequent concrete pouring to form an inverted trapezoidal structure. Due to its wider top, the external force can be evenly distributed over a larger area, reducing local stress concentration and enabling it to withstand greater impact loads.
[0042] In this embodiment, circular slots a5 are provided on the ear plates a4 on both sides of the inner template a1. The circular slots a5 provide space to facilitate the quick installation and positioning of the two inner templates a1 using fasteners; at the same time, the two circular slots a5 form a directional flow channel, which can promote the flow of concrete, improve the filling efficiency of grout, and make the connection between the concrete and the inner template a1 more closely after the concrete is formed.
[0043] In this embodiment, an insulation board and / or a sound insulation board a6 are filled between the two inner templates a1. The air layer inside the cavity a2 forms a double thermal insulation barrier with the insulation board, which can significantly reduce heat transfer and improve thermal insulation performance. The air layer inside the cavity a2 can also be combined with the sound insulation cotton to form a "cavity-cotton-cavity" sandwich structure, which can significantly block external sound and improve its sound insulation effect.
[0044] Example 2
[0045] like Figure 5 As shown, this embodiment proposes a cavity ribbed wall, which includes any one of the compression-resistant core model material tubes a in the embodiment; a space frame b, which is respectively disposed on both sides of the compression-resistant core model material tube a; a fiber mesh c, which is respectively disposed on the outer side of the two space frames b; a mortar layer, which fills the outer side of the compression-resistant core model material tube a and covers the space frame b and the fiber mesh c; and two sets of light steel keels g, which cover the upper and lower sides of the mortar layer respectively, forming a cavity ribbed wall a2.
[0046] Specifically, the mortar layers, from the inside out, consist of M15 cement mortar (d) and M10 cement-mixed mortar (e). The inner layer, M15 cement mortar (d), fills the groove a33; its high strength provides foundation support and forms a rigid connection with the compression-resistant core material tube a and the reinforcing mesh b, resisting structural loads. The outer layer, M10 cement-mixed mortar (e), after being coated with fiber mesh (c), effectively improves crack resistance and adhesion, reducing costs. The inner layer prioritizes strength, while the outer layer prioritizes toughness and crack resistance, forming a composite structure. The mesh b uses galvanized welded wire mesh, which is corrosion-resistant and can withstand humid environments. Its application in the cavity a2 ribbed wall enhances its impact resistance. The fiber mesh (c) uses alkali-resistant glass fiber mesh (c), which maintains its strength in the alkaline environment of the mortar layer, thus providing crack resistance.
[0047] The construction steps for the cavity a2 ribbed wall are as follows:
[0048] S1: Pre-assemble and fix two sets of inner templates a1 to form a compression-resistant core model material tube a. Insulation board and / or sound insulation board a6 can be filled between the inner templates a1 according to actual needs.
[0049] S2: In the area to be constructed, first fix the two sets of light steel keels g to the upper and lower sides respectively with nails h, and fix the compression-resistant core model material tube a between the two light steel keels g;
[0050] S3: Fix the two sets of space frames b to both sides of the compression-resistant core model material tube a using connectors f;
[0051] S4: Use mechanical spraying to fill the groove a33 with M15 cement mortar d until it covers the mesh frame b, and then compact it with a trowel;
[0052] S4: Fix the fiber mesh c to the outside of the molded M15 cement mortar d by means of adhesive, then set up the side formwork, pour M10 cement mortar e inside, and after natural curing for about 7 days, the cavity a2 ribbed wall can be formed.
[0053] Using this construction method in conjunction with the aforementioned structure, some parts can be pre-assembled in the factory, requiring only hoisting and placement on site. This significantly reduces on-site processing and shortens the construction period considerably compared to traditional methods.
[0054] Example 3
[0055] like Figure 5As shown, in this embodiment, the space frame b is fixed to one or both sides of the compression-resistant core model material tube a using a connector f. The connector f includes an expansion tube f1 located in the groove a33. The expansion tube f1 can be made of polypropylene. An expansion bolt f2 is threaded inside the expansion tube f1. One end of the expansion bolt f2 extends to the outside of the expansion tube f1 and is fixed with an expansion head f3. The expansion head f3 is snapped onto the outer edge of the end of the expansion tube f1. A bolt f4 is fixed to the other end of the expansion tube f1. A buckle is provided on the bolt f4. The vertical ribs in the space frame b are snapped into the buckle, and the horizontal ribs overlap above the bolt f4. It also includes a top cover f6, which is threadedly connected to the bolt f4, positioning the space frame b in the bayonet f5.
[0056] When positioning the space frame b, the expansion tube f1 is pre-nested in the groove a33. By screwing the expansion bolt f2 inside the expansion tube f1, the expansion head f3 is driven to expand radially, so that the expansion tube f1 is anchored inside the groove a33. After the positioning of the expansion tube f1 and the expansion bolt f2 is completed, the vertical ribs in the space frame b are inserted into the slot f5 of the bolt f4, and the horizontal ribs overlap the top surface of the bolt f4. By screwing the threaded top cover f6, pressure is applied to the space frame b to clamp it, thereby positioning the space frame b on the side of the compression-resistant core model material tube a.
[0057] By using this connector f, the groove a33 in the compression-resistant core material tube a is fully utilized to form a force-bearing point, thus achieving the positioning of the space frame b. Compared with traditional welding or binding processes, the single-point installation time can be significantly reduced.
[0058] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.
Claims
1. A compression-resistant core mold material tube (a), characterized in that, include, Two sets of inner templates (a1) are joined together to form a compression-resistant core model tube (a), and the core model tube has several sets of independent cavities (a2) inside. The inner template (a1) includes several sets of horizontally arranged protrusions (a3). The protrusions (a3) of two inner templates (a1) are spliced together to form the cavity (a2). Ear plates (a4) are fixed on both sides of the protrusions (a3), and adjacent protrusions (a3) are fixedly connected by ear plates (a4).
2. The compression-resistant core mold material tube (a) according to claim 1, characterized in that, The protrusion (a3) includes two first plates (a31), and a second plate (a32) is connected between the two first plates (a31). At least one set of grooves (a33) are provided on the second plate (a32).
3. The compression-resistant core mold material tube (a) according to claim 1, characterized in that, The inner template (a1) has circular slots (a5) on the ear plates (a4) on both sides.
4. The compression-resistant core mold material tube (a) according to claim 1, characterized in that, The two second plates (a32) in the protrusion (a3) are arranged in an inwardly inclined manner.
5. The compression-resistant core mold material tube (a) according to claim 1, characterized in that, The space between the two inner templates (a1) is filled with insulation board and / or sound insulation board.
6. A cavity ribbed wall, characterized in that, include: A compression-resistant core mold material tube (a) as described in any one of claims 1-5; Space frame (b), wherein the space frame (b) is respectively disposed on both sides of the compression-resistant core mold material; Fiber mesh (c), wherein the fiber mesh (c) is respectively disposed on the outer side of the two mesh frames (b); A mortar layer is filled on the outside of the compression-resistant core mold material tube (a) and covers the space frame (b) and fiber mesh (c); Two sets of light steel keels (g) are respectively wrapped around the upper and lower sides of the mortar layer to form a cavity (a2) dense rib wall.
7. A cavity (a2) ribbed wall according to claim 6, characterized in that, The mortar layers, from the inside out, are M15 cement mortar (d) and M10 cement mixed mortar (e).
8. A cavity (a2) ribbed wall according to claim 1, characterized in that, The compression-resistant core material tube (a) and the space frame (b) are fixed by a number of connectors (f).
9. A cavity (a2) ribbed wall according to claim 8, characterized in that, The connector (f) includes an expansion tube (f1) located in a groove (a33), an expansion bolt (f2) threaded inside the expansion tube (f1), an expansion head (f3) extending from one end of the expansion bolt (f2) to the outside of the expansion tube (f1), and the expansion head (f3) snapping onto the outer edge of the end of the expansion tube (f1); a bolt (f4) is fixed to the other end of the expansion tube (f1), and a slot (f5) is provided on the threaded part of the bolt (f4), the vertical ribs of the space frame (b) are snapped into the slot (f5), and the horizontal ribs overlap above the bolt (f4); it also includes a top cover (f6), which is threadedly connected to the bolt (f4) to position the space frame (b) in the slot (f5).