Prefabricated concrete support mortise and tenon connection component

By combining the square positioning block and U-shaped slot block in the mortise and tenon connection component with the column rod, the cumbersome connection problem between the precast wall and the bottom bearing plate in prefabricated buildings is solved, and a firm connection without auxiliary support and grouting is achieved, simplifying the construction steps.

CN224549360UActive Publication Date: 2026-07-24QINGDAO XINJIAXIN CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO XINJIAXIN CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-07-28
Publication Date
2026-07-24

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Abstract

The utility model discloses an assembly type concrete support mortise and tenon connection component, it includes a plurality of round grooves of bearing bottom plate top and a plurality of square grooves of setting up in assembly wall bottom, the bottom of round groove inner chamber is seted up with the square groove of positioning, the inner chamber of square groove of positioning is inserted with square positioning block, the top fixedly connected with the square positioning block of square columnar rod of inserting square groove inner chamber column, square positioning block and columnar rod inner pre -buried steel bar. The utility model discloses through with square positioning block inserts into the inner chamber of positioning square groove, for the recess on columnar rod realizes the positioning orientation, then hoists and dresss assembly wall in the top of bearing bottom plate, makes the top of columnar rod enter the inner chamber of positioning round groove and realizes with positioning for assembly wall, then takes up U shape and dresss the groove block through rectangular perforated hole and knocks into the inner chamber of square groove, makes the cavity on U shape and dresss the groove block on the surface of recess realizes mortise and tenon fixing, pours concrete into the inner chamber of round groove and the inner chamber of square groove again through grouting hole, and the columnar rod is wrapped.
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Description

Technical Field

[0001] This utility model belongs to the field of prefabricated building technology, and in particular relates to prefabricated concrete support tenon and mortise connection components. Background Technology

[0002] Prefabricated buildings refer to buildings where a large amount of on-site work in traditional construction methods is transferred to factories. Building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured in factories, transported to the construction site, and assembled and installed on-site using reliable connection methods.

[0003] Precast channels are reserved at the bottom of the precast wall. After the foundation steel bars are inserted into the channels, high-strength grout is poured in. The steel bars are spliced ​​by the shape of the channels and the bonding force of the grout. During the solidification process of the precast wall, auxiliary supports are required. The disassembly and assembly of auxiliary supports are quite troublesome. We designed prefabricated concrete support mortise and tenon connection components. The mortise and tenon method is used to connect the precast wall to the bottom bearing plate, ensuring the firmness of the connection. No auxiliary support or grouting is required, reducing construction steps. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated concrete support tenon and mortise connection component, which has the advantages of using tenon and mortise to connect the precast wall to the bottom bearing plate, ensuring the firmness of the connection, eliminating the need for auxiliary support and grouting, and reducing construction steps, thereby solving the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a prefabricated concrete support tenon and mortise connection component, which includes multiple circular grooves on the top of the bearing base plate and multiple square grooves opened at the bottom of the prefabricated wall. A positioning square groove is opened at the bottom of the inner cavity of the circular groove. A square positioning block is inserted into the inner cavity of the positioning square groove. A columnar rod extending into the inner cavity of the square groove is fixedly connected to the top of the square positioning block. Steel bars are pre-embedded in the square positioning block and the columnar rod. Two symmetrical grooves are opened on the surface of the columnar rod. A U-shaped locking block is provided through one side of the inner cavity of the square groove. The end of the U-shaped locking block abuts against the inner wall of the square groove. The U-shaped locking block is sleeved in the inner cavity of the two grooves.

[0006] Preferably, the U-shaped slot block has a cavity that fits inside the two grooves.

[0007] Preferably, limiting protrusions are provided on both sides of the inner cavity of the cavity, and the limiting protrusions abut against one side of the cylindrical rod.

[0008] Preferably, a rectangular through hole is provided on one side of the inner cavity of the square groove for the U-shaped card slot block to pass through.

[0009] Preferably, a grouting hole is provided at the top of one side of the inner cavity of the square groove.

[0010] Preferably, the top of the inner cavity of the square groove is provided with a positioning circular groove for inserting a cylindrical rod.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model achieves the positioning orientation of the groove on the column rod by inserting a square positioning block into the inner cavity of the positioning groove. Then, the prefabricated wall is hoisted on the top of the supporting base plate, so that the top of the column rod enters the inner cavity of the positioning circular groove to position the prefabricated wall. Next, the U-shaped card slot block is picked up, passed through the rectangular through hole and hammered into the inner cavity of the square groove, so that the cavity on the U-shaped card slot block fits on the surface of the groove to achieve mortise and tenon fixation. Then, concrete is poured into the inner cavity of the circular groove and the inner cavity of the square groove through the grouting hole to wrap the column rod. This achieves the purpose of connecting the prefabricated wall to the bottom supporting plate by mortise and tenon, ensuring the firmness of the connection, without the need for auxiliary support and grouting, and reducing construction steps.

[0013] 2. By setting a limiting protrusion, this utility model ensures that after the U-shaped slot block is in place, the limiting protrusion will be located on the other side of the cylindrical rod, effectively restricting the movement of the U-shaped slot block and ensuring the stability of the U-shaped slot block on the surface of the cylindrical rod. Attached Figure Description

[0014] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.

[0015] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0016] Figure 2 This is a three-dimensional disassembled schematic diagram of the supporting base plate and column rod according to an embodiment of the present invention;

[0017] Figure 3 This is a bottom cross-sectional view of an embodiment of the assembled wall according to the present invention;

[0018] Figure 4 This is one embodiment of the present utility model. Figure 2 A magnified view of point A in the middle. Detailed Implementation

[0019] In the following description, embodiments of the prefabricated concrete support tenon-and-mortise connection component of this utility model will be described with reference to the accompanying drawings.

[0020] Figure 1-4This invention illustrates an embodiment of a prefabricated concrete support tenon-and-mortise connection component, comprising multiple circular grooves 3 on the top of a supporting base plate 1 and multiple square grooves 4 on the bottom of a prefabricated wall 2. A positioning square groove 5 is provided at the bottom of the inner cavity of each circular groove 3. A square positioning block 6 is inserted into the inner cavity of the positioning square groove 5. A cylindrical rod 7 extending into the inner cavity of the square groove 4 is fixedly connected to the top of the square positioning block 6. Reinforcing bars are pre-embedded in the square positioning block 6 and the cylindrical rod 7. Two symmetrical grooves 8 are provided on the surface of the cylindrical rod 7. A U-shaped locking block 9 is provided through one side of the inner cavity of the square groove 4. The end of the U-shaped locking block 9 abuts against the inner wall of the square groove 4, and the U-shaped locking block 9 is fitted into the inner cavities of the two grooves 8. A rectangular through hole 10 is provided on one side of the inner cavity of the square groove 4 for the U-shaped slot block 9 to pass through. A grouting hole 13 is provided on the top of one side of the inner cavity of the square groove 4. A positioning circular groove 14 is provided on the top of the inner cavity of the square groove 4 for the cylindrical rod 7 to be inserted. A cavity 11 is provided on the U-shaped slot block 9 and fitted into the inner cavities of the two grooves 8. Limiting protrusions 12 are provided on both sides of the inner cavity of the cavity 11. The limiting protrusions 12 abut against one side of the cylindrical rod 7. By setting the limiting protrusions 12, after the U-shaped slot block 9 is in place, the limiting protrusions 12 will be located on the other side of the cylindrical rod 7, effectively restricting the movement of the U-shaped slot block 9 and ensuring the stability of the U-shaped slot block 9 on the surface of the cylindrical rod 7.

[0021] Working principle: When using this utility model, the square positioning block 6 is inserted into the inner cavity of the positioning square groove 5 to position the groove 8 on the column rod 7. Then, the assembly wall 2 is placed on the top of the supporting base plate 1 by hoisting. During this process, the column rod 7 passes through the inner cavity of the square groove 4 and is inserted into the inner cavity of the positioning round groove 14. The insertion of multiple column rods 7 into the inner cavities of multiple positioning round grooves 14 can achieve pre-fixation of the assembly wall 2. Next, the U-shaped slot block 9 is inserted into the inner cavity of the rectangular through hole 10. The cavity 11 on the U-shaped slot block 9 will fit into the inner cavity of the two grooves 8 until the end of the U-shaped slot block 9 abuts against the depth of the inner cavity of the square groove 4. The U-shaped slot block 9 is locked on the two grooves 8 to achieve tenon and mortise fixation. Then, grout is injected through the grouting hole 13. The concrete fills the inner cavity of the round groove 3 and the square groove 4 to achieve a reliable connection.

[0022] In summary, this prefabricated concrete support mortise and tenon connection component achieves positioning of the prefabricated wall and the bottom support plate by inserting the square positioning block 6 into the inner cavity of the positioning groove 5, thereby positioning the groove 8 on the column rod 7. Then, the prefabricated wall 2 is hoisted onto the top of the supporting base plate 1, so that the top of the column rod 7 enters the inner cavity of the positioning circular groove 14 to position the prefabricated wall 2. Next, the U-shaped slot block 9 is picked up, passed through the rectangular through hole 10, and hammered into the inner cavity of the square groove 4, so that the cavity 11 on the U-shaped slot block 9 fits onto the surface of the groove 8 to achieve mortise and tenon fixation. Finally, concrete is poured into the inner cavities of the circular groove 3 and the square groove 4 through the grouting hole 13 to enclose the column rod 7. This achieves the goal of connecting the prefabricated wall and the bottom support plate using mortise and tenon joints, ensuring a strong connection without the need for auxiliary support or grouting, thus reducing construction steps.

Claims

1. A prefabricated concrete support tenon-and-mortise connection component, characterized in that, It includes multiple circular grooves (3) on the top of the supporting base plate (1) and multiple square grooves (4) on the bottom of the assembly wall (2). The bottom of the inner cavity of the circular groove (3) is provided with a positioning square groove (5). A square positioning block (6) is inserted into the inner cavity of the positioning square groove (5). A columnar rod (7) extending into the inner cavity of the square groove (4) is fixedly connected to the top of the square positioning block (6). Steel bars are pre-embedded in the square positioning block (6) and the columnar rod (7). Two symmetrical grooves (8) are opened on the surface of the columnar rod (7). A U-shaped slot block (9) is provided through one side of the inner cavity of the square groove (4). The end of the U-shaped slot block (9) abuts against the inner wall of the square groove (4). The U-shaped slot block (9) is sleeved in the inner cavity of the two grooves (8).

2. The prefabricated concrete support tenon and mortise connection component according to claim 1, characterized in that, The U-shaped slot block (9) has a cavity (11) that is fitted into the inner cavity of the two grooves (8).

3. The prefabricated concrete support tenon and mortise connection component according to claim 2, characterized in that, Both sides of the cavity (11) are provided with limiting protrusions (12), which abut against one side of the cylindrical rod (7).

4. The prefabricated concrete support tenon and mortise connection component according to claim 3, characterized in that, A rectangular through hole (10) is provided on one side of the inner cavity of the square groove (4) for the U-shaped card slot block (9) to pass through.

5. The prefabricated concrete support tenon and mortise connection component according to claim 4, characterized in that, A grouting hole (13) is provided at the top of one side of the inner cavity of the square groove (4).

6. The prefabricated concrete support tenon and mortise connection component according to claim 5, characterized in that, The top of the inner cavity of the square groove (4) is provided with a positioning circular groove (14) for inserting a cylindrical rod (7).