A concrete interlayer connector

Abstract

This invention provides a concrete interlayer connector for connecting 3D-printed concrete layers. It includes one or more horizontal bars horizontally embedded in different concrete layers; and adjustable vertical bars, with adjustable length, embedded in the concrete layers and connected to the horizontal bars, for interlayer connection of the concrete layers with the embedded horizontal bars. This invention achieves interlayer connection by placing a connector consisting of one or more horizontal bars and adjustable vertical bars at the 3D printing location, allowing different horizontal bars to be embedded in different concrete layers, and enabling the adjustable vertical bars to be embedded in the concrete layers and connected to the horizontal bars. This improves the interlayer connection strength and stability of the concrete layers.

Description

Technical Field

[0001] This utility model relates to the field of 3D printed concrete building technology, specifically to a concrete interlayer connector. Background Technology

[0002] Due to the layered stacking characteristics of 3D printed concrete technology, the connection between printed concrete layers relies solely on the bonding force of the concrete itself. However, this can lead to insufficient interlayer bond strength and easy cracking between concrete layers. Therefore, it is necessary to develop interlayer connectors to improve the stability of concrete interlayer bonds. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a concrete interlayer connector that provides stable interlayer bonding.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a concrete interlayer connector for connecting 3D-printed concrete layers, comprising:

[0005] One or more horizontal bars are horizontally embedded into different concrete layers;

[0006] An adjustable vertical rod, with an adjustable length, is embedded in the concrete layer and connected to the horizontal rod, and is used to connect the concrete layers in which the horizontal rod is embedded.

[0007] Furthermore, the crossbar is provided with an adjustable vertical bar that passes through the middle of the crossbar and is perpendicular to the crossbar to form a cross-shaped structure for connecting different concrete layers.

[0008] Furthermore, the adjustable vertical rod includes a second connecting rod fixed to the middle of the horizontal rod, an adjusting cylinder slidably sleeved at both ends of the second connecting rod, and a locking member for fixing the adjusting cylinder.

[0009] Furthermore, the locking element includes lock holes equally spaced on the second connecting rod, and bolts extending into the lock holes are threaded onto both adjusting cylinders.

[0010] Furthermore, both ends of the crossbar and both ends of the adjusting cylinder are symmetrically distributed with anchoring teeth connected to the concrete layer, and both the crossbar and the adjusting cylinder are provided with spiral grooves that engage with the concrete layer.

[0011] Furthermore, the side wall of the adjusting cylinder is provided with a cross-shaped connecting groove extending to the second connecting rod, and the inner wall of the cross-shaped connecting groove is provided with protrusions at equal intervals.

[0012] Furthermore, there are two crossbars, and the adjustable vertical bar is vertically arranged between the two crossbars to form an H-shaped structure. Both ends of the crossbars are symmetrically provided with anchoring teeth for connecting with the concrete layer.

[0013] Furthermore, each of the two crossbars has a through hole in its middle, and the inner wall of the through hole is provided with convex rings at equal intervals for vertical anchoring with the concrete layer.

[0014] Furthermore, the adjustable vertical rod includes a connecting cylinder, a bidirectional threaded groove formed on the inner wall of the connecting cylinder, and a connecting rod inserted through both ends of the connecting cylinder and extending out to be fixed to the inner walls of the two through holes and threadedly connected to the bidirectional threaded groove.

[0015] Furthermore, the outer wall of the connecting cylinder is provided with a spiral groove for engaging with the concrete layer.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a connector consisting of one or more horizontal bars and adjustable vertical bars to 3D print concrete layers at the 3D printing position, so that different horizontal bars are embedded in different concrete layers, and the adjustable vertical bars are embedded in the concrete layers to achieve connection with the horizontal bars, thereby realizing the connection between concrete layers, improving the connection strength between concrete layers, and enhancing the connection stability between concrete layers. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 This is a perspective view of an H-shaped connector according to an embodiment of the present invention.

[0019] Figure 2 for Figure 1 Another perspective stereoscopic view.

[0020] Figure 3 for Figure 2 Sectional view.

[0021] Figure 4 This is a perspective view of a cross-shaped connector according to an embodiment of the present invention.

[0022] Figure 5 for Figure 4 Another perspective stereoscopic view.

[0023] Figure 6 for Figure 4 Sectional view.

[0024] Figure 7 This is a diagram showing the connection between the H-shaped connector and the concrete layer according to an embodiment of the present invention.

[0025] Figure 8 This is a diagram showing the connection between the cross-shaped connector and the concrete layer according to an embodiment of the present invention.

[0026] In the diagram: 1. Crossbar; 2. Anchor tooth one; 3. Through hole; 4. Connecting cylinder; 5. Connecting rod one; 6. Spiral groove one; 7. Protruding ring; 8. Bidirectional threaded groove; 9. Connecting rod two; 10. Cross-shaped connecting groove; 11. Adjusting cylinder; 12. Anchor tooth two; 13. Protrusion; 14. Spiral groove two; 15. Bolt; 16. Lock hole. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] like Figure 1-8 As shown, this utility model discloses a concrete interlayer connector for connecting 3D-printed concrete layers, comprising:

[0031] One or more horizontal bars 1 are horizontally embedded into different concrete layers;

[0032] An adjustable vertical rod, with an adjustable length, is embedded in the concrete layer and connected to the horizontal rod 1, and is used to connect the concrete layers in which the horizontal rod 1 is embedded.

[0033] When printing concrete layers, the length of the adjustable vertical rod is first adjusted according to the thickness of the concrete to be printed. Then, the connector is placed in the 3D printing position to 3D print the concrete layers, so that different horizontal rods 1 are embedded in different printed concrete layers, and the adjustable vertical rod is embedded in the concrete layer to achieve connection with the horizontal rod 1, thereby realizing the connection between concrete layers, improving the strength of the connection between layers, and enhancing the stability of the connection between concrete layers.

[0034] Example 1

[0035] It should be noted that the horizontal bar 1 is provided with an adjustable vertical bar that passes through the middle of the horizontal bar 1 and is perpendicular to the horizontal bar 1 to form a cross-shaped structure for connecting different concrete layers. With this design, when using the cross-shaped connector, the length of the adjustable vertical bar is first adjusted according to the required thickness of the printed concrete layer. After the length adjustment is completed, the connector is placed in the 3D printing position to 3D print concrete layers. Half of the adjustable vertical bar is embedded in the first printed concrete layer, and half of the horizontal bar 1 is placed in the first concrete layer. The other half of the horizontal bar 1 is placed in the second printed concrete layer, placing the horizontal bar 1 between the upper and lower concrete layers. The other half of the adjustable vertical bar is embedded in the second printed concrete layer, allowing the cross-shaped connector to connect the two concrete layers, improving the interlayer connection strength and enhancing the stability of the interlayer connection.

[0036] It should be noted that the adjustable vertical rod includes a connecting rod 9 fixed to the middle of the horizontal rod 1, adjusting cylinders 11 slidably sleeved at both ends of the connecting rod 9, and locking components for fixing the adjusting cylinders 11. This design allows for changing the thickness of the printed concrete layer; by pulling the adjusting cylinders 11 along the connecting rod 9 to move them to the appropriate position, and then fixing them with the locking components. This enables the cross-shaped connector to be used for interlayer connection after printing concrete layers of various thicknesses, effectively improving the connector's applicability and practicality.

[0037] It should be noted that the locking component includes locking holes 16 equidistantly spaced on the second connecting rod 9, and bolts 15 extending into the locking holes 16 are threaded onto both adjusting cylinders 11. This design allows one end of the bolt 15 to extend into the locking hole 16 by rotating the bolt 15, thus securing the second connecting rod 9 to the adjusting cylinder 11.

[0038] It should be noted that both ends of the crossbar 1 and both ends of the adjusting cylinder 11 are symmetrically distributed with anchoring teeth 12 that connect to the concrete layer. Both the crossbar 1 and the adjusting cylinder 11 are provided with spiral grooves 14 that engage with the concrete layer. This design, after being embedded into the printed concrete layer, enhances the engagement with the concrete layer through the anchoring teeth 12, while also resisting shear forces in both directions. The spiral grooves 14 increase the bonding area with the concrete. Through the "texture-interlocking" method and the synergistic effect of the anchoring teeth 12, the overall shear strength is effectively improved.

[0039] It should be noted that the side wall of the adjusting cylinder 11 is provided with a cross-shaped connecting groove 10 extending to the connecting rod 9, and the inner wall of the cross-shaped connecting groove 10 is provided with protrusions 13 at equal intervals. This design, when printing the concrete layer, will cause the cross-shaped connecting groove 10 to be filled with concrete to form a "cross-shaped locking structure", which enhances the torsional resistance of the cross-shaped connector in the plane. At the same time, the protrusions 13 further increase the friction with the concrete, preventing the cross-shaped connector from rotating under force.

[0040] Example 2

[0041] It should be noted that there are two horizontal bars 1, and the adjustable vertical bar is vertically arranged between the two horizontal bars 1 to form an H-shaped structure. Anchor teeth 2 are symmetrically arranged at both ends of each horizontal bar 1 for connection with the concrete layer. With this design, when using the H-shaped connector, the distance between the two horizontal bars 1 is first adjusted according to the required thickness of the printed concrete layer. After the distance between the two horizontal bars 1 is adjusted, the connector is placed in the 3D printing position to 3D print the concrete layer, so that the horizontal bar 1 is embedded in the first layer of printed concrete, the adjustable vertical bar is embedded in the second layer of printed concrete, and the second horizontal bar 1 is embedded in the third layer of printed concrete. This achieves the connection between the three concrete layers, improving the interlayer connection strength and stability. When the anchor teeth 2 are embedded in the printed concrete layer, they enhance the mechanical interlocking effect of the wedge into the concrete. When embedded in the concrete layer, they can form a "barb" effect, effectively resisting horizontal shear forces and preventing the H-shaped connector from sliding relative to the concrete layer.

[0042] It should be noted that both crossbars 1 have through holes 3 extending through their middle sections, and the inner walls of the through holes 3 are provided with convex rings 7 at equal intervals for vertical anchoring with the concrete layer. With this design, when the crossbars 1 are embedded in the printed concrete layer, the through holes 3 will be filled with concrete, forming a "pin structure," which can enhance the vertical anchoring of the H-shaped structure's connectors with the concrete and improve tensile strength.

[0043] It should be noted that the adjustable vertical rod includes a connecting cylinder 4, a bidirectional threaded groove 8 formed on the inner wall of the connecting cylinder 4, and a connecting rod 5 inserted through both ends of the connecting cylinder 4, extending out and fixed to the inner walls of the two through holes 3, and threadedly connected to the bidirectional threaded groove 8. With this design, when it is necessary to change the thickness of the printed concrete, the H-shaped connector is placed on the table, and the two horizontal bars 1 are held to prevent rotation. Then, the connecting cylinder 4 is rotated, which drives the bidirectional threaded groove 8 to rotate, causing the two connecting rods 5 inside the connecting cylinder 4 to move relative to each other. This allows the two ends of the two connecting rods 5 to adjust the spacing between the two horizontal bars 1, enabling this design to perform interlayer connections after printing concrete layers of various thicknesses, effectively improving the applicability and practicality of the connector.

[0044] It should be noted that the outer wall of the connecting cylinder 4 is provided with a spiral groove 6 for engaging with the concrete layer. With this design, when printing the concrete layer, the concrete will fill into the spiral groove 6, which can increase the contact area between the connecting cylinder 4 and the concrete. The vertical force between the layers is transmitted through the "threaded engagement". At the same time, the concrete filling the spiral groove 6 forms a mechanical locking key after hardening, which resists the relative rotation between the vertical rod and the concrete.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A concrete interlayer connector for connecting 3D printed concrete layers, characterized in that: include: One or more horizontal bars (1) are horizontally embedded into different concrete layers; An adjustable vertical rod, with an adjustable length, is embedded in the concrete layer and connected to the horizontal rod (1) to connect the concrete layers in which the horizontal rod (1) is embedded.

2. The concrete interlayer connector of claim 1, wherein: The crossbar (1) is provided, and the adjustable vertical bar passes through the middle of the crossbar (1) and is perpendicular to the crossbar (1) to form a cross-shaped structure for connecting different concrete layers.

3. The concrete interlayer connector of claim 2, wherein: The adjustable vertical rod includes a connecting rod 2 (9) fixed in the middle of the horizontal rod (1), an adjusting cylinder (11) slidably sleeved at both ends of the connecting rod 2 (9), and a locking member for fixing the adjusting cylinder (11).

4. The concrete interlayer connector of claim 3, wherein: The locking element includes lock holes (16) that are equally spaced on the connecting rod 2 (9), and bolts (15) extending into the lock holes (16) are threaded onto both adjusting cylinders (11).

5. The concrete interlayer connector of claim 3, wherein: Anchor teeth (12) that connect to the concrete layer are symmetrically distributed at both ends of the crossbar (1) and the adjusting cylinder (11). Spiral grooves (14) that engage with the concrete layer are provided on both the crossbar (1) and the adjusting cylinder (11).

6. The concrete interlayer connector of claim 4, wherein: The side wall of the adjusting cylinder (11) is provided with a cross-shaped connecting groove (10) extending to the connecting rod (9), and the inner wall of the cross-shaped connecting groove (10) is provided with protrusions (13) at equal intervals.

7. The concrete interlayer tie of claim 1, wherein: Two horizontal bars (1) are provided, and the adjustable vertical bar is vertically arranged between the two horizontal bars (1) to form an H-shaped structure. Anchor teeth (2) for connecting with the concrete layer are symmetrically arranged at both ends of the horizontal bars (1).

8. The concrete interlayer connector of claim 7, wherein: Both of the crossbars (1) have through holes (3) in the middle, and the inner walls of the through holes (3) are provided with convex rings (7) at equal intervals for vertical anchoring with the concrete layer.

9. The concrete interlayer tie of claim 8, wherein: The adjustable vertical rod includes a connecting cylinder (4), a bidirectional threaded groove (8) opened on the inner wall of the connecting cylinder (4), and a connecting rod (5) inserted through both ends of the connecting cylinder (4) and extending out to be fixed to the inner wall of the two through holes (3) and threadedly connected to the bidirectional threaded groove (8).

10. The concrete interlayer connector of claim 9, wherein: The outer wall of the connecting cylinder (4) is provided with a spiral groove (6) for engaging with the concrete layer.

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