Fabricated concrete structure node connecting structure

Abstract

The utility model relates to the field of assembly type concrete, and discloses an assembly type concrete structure node connecting structure which comprises a supporting column, the top end of the supporting column is fixedly connected with a fixing block, the inner wall of the fixing block is provided with a connecting mechanism, the middle of the connecting mechanism is provided with a connecting hole, the top end of the fixing block is provided with a circular groove, and the circular groove is fixedly connected with the fixing block. The top end of the supporting column is fixedly connected with a reinforcing steel bar, the top end of the supporting column is in contact with a beam, a clamping groove is formed in the side wall of the inner side of the beam, a ring opening is formed in the inner wall of the beam, the connecting mechanism comprises two wedge blocks, and the wedge blocks are slidably connected to the inner wall of the fixing block. According to the supporting column, the fixing blocks and the wedge blocks are connected with the beams and the clamping grooves in an inserted mode, the inner walls of the fixing blocks, the inner walls of the clamping grooves and the inner walls of the connecting holes are filled with concrete, fixing anchors are formed after the fixing blocks and the wedge blocks are poured, and the connectivity of the supporting column and the beams is improved.

Description

Technical Field

[0001] The utility model relates to the field of precast concrete, in particular to a node connection structure of a precast concrete structure. Background Technique

[0002] Precast concrete is a building technology that prefabricates concrete components in a factory or on-site and assembles and installs them where needed.

[0003] In the prior art, there are the following defects; existing precast concrete structures are generally connected by means of steel bars passing through and in cooperation with concrete pouring, and additional support devices are required to support the concrete structure, and the connection strength and stability cannot be further improved. For this reason, a node connection structure of a precast concrete structure is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a node connection structure of a precast concrete structure, aiming to improve the problem that the connection strength and stability of the precast concrete structure cannot be further improved in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a node connection structure of a precast concrete structure, including a support column, a fixing block is fixedly connected to the top end of the support column, a connecting mechanism is arranged on the inner wall of the fixing block, a connecting hole is opened in the middle of the connecting mechanism, a circular groove is opened at the top end of the fixing block, a steel bar is fixedly connected to the top end of the support column, a beam is in contact with the top end of the support column, a clamping groove is opened on the inner side wall of the beam, and an annular opening is opened on the inner wall of the beam;

[0006] The connecting mechanism includes a wedge block, the wedge block is slidably connected to the inner wall of the fixing block, there are two groups of wedge blocks, and the two groups of wedge blocks are elastically connected by a return spring, the wedge block is inserted into the inner wall of the clamping groove, the outer wall of the fixing block is inserted into the inner wall of the support column, and the connecting hole is opened in the middle of the wedge block.

[0007] As a further description of the above technical solution:

[0008] A steel plate is fixedly connected to the right side wall of the support column, a connecting plate is fixedly connected to the top end of the steel plate, a T-shaped block is fixedly connected to the top end of the connecting plate, and a fastening bolt is inserted through and threadedly connected to the inner wall of the connecting plate.

[0009] As a further description of the above technical solution:

[0010] The fastening bolt is threadedly connected to the inner wall of the beam.

[0011] As a further description of the above technical solution:

[0012] The T-shaped block is inserted into the outer wall of the beam.

[0013] As a further description of the above technical solution:

[0014] The connecting plate is fixedly connected to the right side wall of the support column.

[0015] As a further description of the above technical solution:

[0016] The steel bar is inserted into the inner wall of the beam.

[0017] The utility model has the following beneficial effects:

[0018] 1. In the utility model, by arranging the fixing block and the wedge block to be inserted into the beam and the card slot, and filling the inner walls of the fixing block, the card slot and the connecting hole with concrete, a fixing anchor is formed after the fixing block and the wedge block are cast, which increases the connection between the support column and the beam.

[0019] 2. In the utility model, by arranging the T-shaped block to be inserted into the outer wall of the beam, the beam can be positioned during the installation of the steel bar. The whole beam is supported and fastened by using the steel plate, the connecting plate and the fastening bolt, which improves the support for the beam and avoids the cumbersome process of using additional tools to support it. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall three-dimensional schematic diagram of the support column and the beam of a prefabricated concrete structure joint connection structure proposed by the utility model;

[0021] Figure 2 It is an exploded schematic diagram of the support column and the beam of a prefabricated concrete structure joint connection structure proposed by the utility model;

[0022] Figure 3 It is an overall sectional schematic diagram of the fixing block of a prefabricated concrete structure joint connection structure proposed by the utility model;

[0023] Figure 4 It is an overall sectional schematic diagram of the beam of a prefabricated concrete structure joint connection structure proposed by the utility model.

[0024] Legend:

[0025] 1. Support column; 2. Fixing block; 3. Wedge block; 4. Return spring; 5. Connecting hole; 6. Round groove; 7. Steel bar; 8. Beam; 9. Card slot; 10. Ring opening; 11. Steel plate; 12. Connecting plate; 13. T-shaped block; 14. Fastening bolt. DETAILED DESCRIPTION OF THE INVENTION

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Referring to Figures 1 - 3 , an embodiment provided by the present invention: a connection structure for an assembled concrete structure node, including a support column 1. A fixed block 2 is fixedly connected to the top end of the support column 1. The fixed block 2 and the wedge block 3 are made of steel materials and have strong hardness and performance. A connection mechanism is provided on the inner wall of the fixed block 2. A connection hole 5 is opened in the middle of the connection mechanism. A circular groove 6 is opened at the top end of the fixed block 2. The concrete can be filled into the entire fixed block 2 through the circular groove 6. A steel bar 7 is fixedly connected to the top end of the support column 1. A notch corresponding to the steel bar 7 is opened on the beam 8. The beam 8 is stably connected by passing the steel bar 7 through the beam 8. This is an existing connection technology and will not be elaborated too much here. The top end of the support column 1 contacts the beam 8. Referring to Figure 4 , a clamping groove 9 is opened on the inner side wall of the beam 8, and an annular opening 10 is opened on the inner wall of the beam 8. The annular openings 10 are in four groups, corresponding to the circular groove 6 of the fixed block 2 and the connection holes 5 on the wedge block 3 respectively, so that the concrete can enter the circular groove 6 and the connection holes 5 from the annular openings 10.

[0028] Referring to Figures 2 - 4 , a steel plate 11 is fixedly connected to the right side wall of the support column 1. The steel plate 11 can support and connect the entire connecting plate 12. A connecting plate 12 is fixedly connected to the top end of the steel plate 11. A T-shaped block 13 is fixedly connected to the top end of the connecting plate 12. A fastening bolt 14 penetrates and is threadedly connected to the inner wall of the connecting plate 12. The connection strength between the connecting plate 12 and the beam 8 is improved by the fastening bolt 14. The fastening bolt 14 is threadedly connected to the inner wall of the beam 8. As shown in Figure 2 , a notch corresponding to the fastening bolt 14 is opened at the bottom end of the beam 8. The T-shaped block 13 is inserted into the outer wall of the beam 8. A notch corresponding to the T-shaped block 13 is opened on the beam 8, which can make the notch inserted into the beam 8 to ensure that the subsequent positioning of the notch corresponding to the steel bar 7 and the beam 8 will not cause installation deviation. The connecting plate 12 is fixedly connected to the right side wall of the support column 1.

[0029] Referring to Figures 1 - 3, The connecting mechanism includes a wedge block 3. The wedge block 3 is slidably connected to the inner wall of the fixed block 2. The wedge block 3 has an inclined surface. When the inclined surface is squeezed, the wedge block 3 will slide along the inner wall of the fixed block 2. There are two groups of wedge blocks 3, and the two groups of wedge blocks 3 are elastically connected by a return spring 4. One end of the return spring 4 is fixed to the left wedge block 3, and the other end of the return spring 4 is fixed to the right wedge block 3. The wedge block 3 is inserted into the inner wall of the card slot 9. After the wedge block 3 is inserted into the card slot 9, the entire support column 1 and the beam 8 cannot be separated. The outer wall of the fixed block 2 is inserted into the inner wall of the support column 1. The support column 1 is provided with a notch corresponding to the fixed block 2, which can meet the insertion and positioning of the fixed block 2. The connection hole 5 is opened in the middle of the wedge block 3, and the steel bar 7 is inserted into the inner wall of the beam 8.

[0030] Working principle: First, when assembling the beam 8 and the support column 1, it is only necessary to insert the T-shaped groove on the outer wall of the beam 8 corresponding to the T-shaped block 13. Subsequently, the beam 8 will be inserted into the steel bar 7, so that the bottom end of the beam 8 is inserted into the fixed block 2 and the inclined surface of the wedge block 3 is squeezed by the bottom end of the beam 8, causing the wedge block 3 to enter the inner wall of the fixed block 2 and compress the return spring 4. When the wedge block 3 coincides with the inner wall of the card slot 9, the reverse elastic force of the return spring 4 is used to bring the wedge block 3 back outwards, so that the inner walls of the wedge block 3 and the card slot 9 are inserted to limit the beam 8 unidirectionally. Finally, the fastening bolt 14 is threaded into the inner walls of the connecting plate 12 and the beam 8 to reinforce the connection strength of the beam 8.

[0031] Finally, the concrete is poured into the fixed block 2, the card slot 9 and the connection hole 5 from the ring opening 10, so that the fixed block 2 is filled with concrete, and the concrete enters the card slot 9 to fill the wedge block 3 to form a fixed anchor, improving the connection strength between the support column 1 and the beam 8.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Prefabricated concrete structure joint connection structure, including a support column (1), characterized in that: The top end of the support column (1) is fixedly connected with a fixing block (2). A connecting mechanism is arranged on the inner wall of the fixing block (2). A connecting hole (5) is opened in the middle of the connecting mechanism. A circular groove (6) is opened at the top end of the fixing block (2). The top end of the support column (1) is fixedly connected with a steel bar (7). The top end of the support column (1) is in contact with a beam (8). A clamping groove (9) is opened on the inner side wall of the beam (8). An annular opening (10) is opened in the inner wall of the beam (8); The connecting mechanism includes a wedge block (3). The wedge block (3) is slidably connected to the inner wall of the fixing block (2). There are two groups of the wedge blocks (3). The two groups of the wedge blocks (3) are elastically connected by a return spring (4). The wedge block (3) is inserted into the inner wall of the clamping groove (9). The outer wall of the fixing block (2) is inserted into the inner wall of the support column (1). The connecting hole (5) is opened in the middle of the wedge block (3).

2. The prefabricated concrete structure joint connection structure according to claim 1, characterized in that: A steel plate (11) is fixedly connected to the right end side wall of the support column (1). A connecting plate (12) is fixedly connected to the top end of the steel plate (11). A T-shaped block (13) is fixedly connected to the top end of the connecting plate (12). A fastening bolt (14) penetrates through and is threadedly connected to the inner wall of the connecting plate (12).

3. The prefabricated concrete structure joint connection structure according to claim 2, characterized in that: The fastening bolt (14) is threadedly connected to the inner wall of the beam (8).

4. The assembled concrete structure joint connection structure according to claim 2, characterized in that: The T-shaped block (13) is inserted into the outer wall of the beam (8).

5. The assembled concrete structure joint connection structure according to claim 2, characterized in that: The connecting plate (12) is fixedly connected to the right end side wall of the support column (1).

6. The prefabricated concrete structure joint connection structure according to claim 1, characterized in that: The steel bar (7) is inserted into the inner wall of the beam (8).

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