Prefabricated concrete frame column

Abstract

The utility model relates to the technical field of assembly type buildings, in particular to a prefabricated assembly type concrete frame column which comprises a column body, a positioning ring and a plurality of clamping blocks. A first annular groove is formed in the upper end face of the column, a second annular groove is formed in the lower end face of the column, and grouting holes communicating with the second annular groove are formed in the peripheral face of the column. The upper end of the positioning ring is used for being inserted into the second annular groove of the column body above, the lower end of the positioning ring is inserted into the first annular groove, and the positioning ring is in clearance fit with the first annular groove and the second annular groove; the multiple clamping blocks are arranged in the circumferential direction of the positioning ring and elastically connected to the upper end of the positioning ring. When the positioning ring is inserted into the second annular groove of the upper column body, the clamping block is shrunk at the upper end of the positioning ring; and when the upper column body is rotated, the clamping block bounces and is clamped at the lower end of the upper column body. According to the utility model, the frame column can be quickly inserted and positioned during assembly, and the torsion resistance and breaking strength of the frame column connecting node are high.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated buildings, and particularly relates to a prefabricated concrete frame column. Background Art

[0002] In recent years, with the continuous development of building technology, the construction technology of prefabricated buildings has become increasingly mature. Prefabricated buildings mainly include various prefabricated concrete structures, such as precast floor slabs, precast wall panels, and precast frame columns. When manufacturing precast frame columns, multiple insertion holes are usually provided at the end faces of the precast frame columns to achieve the connection between the precast frame columns and other components.

[0003] Currently, when assembling existing precast frame columns, multiple connecting steel bars corresponding to the positions of the insertion holes on the precast frame columns are usually embedded in the base supporting the precast frame column. Then, the precast frame column is lifted by a crane to above the target and slowly lowered. During the lowering process, the staff needs to adjust the position of the precast frame column multiple times until all the connecting steel bars are inserted into the insertion holes before the subsequent grouting process can be carried out.

[0004] Therefore, the patent with the application number 202222065160.7 provides a prefabricated multi-chamber composite concrete frame column. By setting positioning members at the ends in the length direction of the frame column and second insertion grooves on the base connected to the ends, the frame column can be quickly inserted and positioned during the connection with the base, achieving the effect of reducing construction time. However, since the positioning members of this patent are only connected to the upper frame column by pouring and there is no other structure to limit the rotation and bending of the upper frame column, the torsional and flexural strengths of the frame column connection nodes are relatively low. Summary of the Utility Model

[0005] In view of this, the purpose of the present utility model is to provide a prefabricated concrete frame column that can be quickly inserted and positioned during assembly, and has high torsional and flexural strengths at the frame column connection nodes.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] A prefabricated and assembled concrete frame column includes a column body, a positioning ring, and a plurality of clamping blocks; a first annular groove is formed on the upper end face of the column body, a second annular groove is formed on the lower end face of the column body, and grouting holes communicating with the second annular groove are formed on the outer peripheral surface of the column body; the upper end of the positioning ring is used to be inserted into the second annular groove of the upper column body, the lower end of the positioning ring is inserted into the first annular groove, and the positioning ring is in clearance fit with the first annular groove and the second annular groove; the plurality of clamping blocks are arranged circumferentially along the positioning ring and elastically connected to the upper end of the positioning ring; when the positioning ring is inserted into the second annular groove of the upper column body, the clamping blocks contract at the upper end of the positioning ring; when the upper column body is rotated, the clamping blocks pop up and are clamped at the lower end of the upper column body.

[0008] As an alternative solution, a plurality of installation grooves are arranged circumferentially on the outer peripheral surface of the upper end of the positioning ring, and the clamping blocks are elastically connected in the installation grooves; a plurality of clamping grooves corresponding to the installation grooves respectively are arranged circumferentially on the inner side wall of the second annular groove; when the positioning ring is inserted into the second annular groove of the upper column body, the clamping blocks are squeezed and contract in the installation grooves; when the upper column body is rotated until the radial positions of the installation grooves and the clamping grooves correspond, the clamping blocks pop up and are clamped in the clamping grooves.

[0009] As an alternative solution, the clamping blocks are arranged vertically, and both the upper and lower ends of the clamping blocks are connected to the installation grooves through springs.

[0010] As an alternative solution, a plurality of screws corresponding to the clamping grooves respectively are arranged circumferentially at the lower end of the column body, and the screws penetrate through the clamping blocks and are threadedly connected to the positioning ring.

[0011] As an alternative solution, a fillet is provided at the upper edge of the outer side of the clamping block.

[0012] As an alternative solution, a plurality of grooves distributed radially are formed on both the upper and lower end faces of the column body, and the grooves communicate with the first annular groove and the first annular groove.

[0013] As an alternative solution, the column body is of a hollow structure, and a plurality of reinforcing plates corresponding to the grooves respectively are arranged inside the column body. The reinforcing plates extend along the axial direction of the frame column, are connected to the inner wall of the column body, and the grooves are formed on the upper end face of the reinforcing plates.

[0014] As an alternative solution, a plurality of grouting holes are provided, and the plurality of grouting holes are arranged circumferentially on the outer peripheral surface of the lower end of the column body and respectively correspond to the clamping blocks.

[0015] As an alternative solution, the lower end of the positioning ring is fixedly connected to the first annular groove through bolts.

[0016] Due to the above technical solution, the utility model will have the following beneficial effects:

[0017] A prefabricated concrete frame column provided by the utility model inserts the upper end of the positioning ring into the second annular groove of the upper column body by lowering the upper column body. The clamping block is squeezed and shrinks at the upper end of the positioning ring. Rotating the upper column body makes the clamping block bounce and be clamped at the lower end of the upper column body. Through the grouting hole, cement mortar can be poured into the cavity formed by the positioning ring, the first annular groove and the second annular groove. After the cement mortar solidifies, the connection between the two column bodies can be completed.

[0018] Compared with the prior art, during assembly, the positioning ring of the utility model can be quickly inserted into the second annular groove of the upper column body, and can also achieve quick plug-in positioning of the frame column. Moreover, the clamping block is clamped at the lower end of the upper column body, which can limit the rotation and bending of the upper column body, thereby improving the torsional and flexural strength of the connection node of the frame column. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 Is a perspective view of the prefabricated concrete frame column described in the embodiment of the present utility model;

[0021] Figure 2 Is Figure 1 The upper view of the prefabricated concrete frame column described in the embodiment;

[0022] Figure 3 Is two Figure 1 The perspective view of the prefabricated concrete frame column described in the embodiment during assembly;

[0023] Figure 4 Is Figure 3 The cross-sectional view at A in

[0024] Reference numerals: 1, column body; 11, first annular groove; 12, second annular groove; 121, clamping groove; 13, grouting hole; 2, positioning ring; 21, installation groove; 3, clamping block; 31, spring; 32, rounded corner; 4, screw; 5, reinforcing plate; 51, groove; 6, bolt. Detailed Embodiment

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Please refer to Figures 1-4 , in an embodiment of a prefabricated and assembled concrete frame column of the present utility model, the prefabricated and assembled concrete frame column includes a column body 1, a positioning ring 2, and a plurality of clamping blocks 3;

[0029] Among them, a first annular groove 11 is formed on the upper end face of the column body 1, and a second annular groove 12 is formed on the lower end face of the column body 1. The sizes and vertical positions of the first annular groove 11 and the second annular groove 12 correspond to each other; a grouting hole 13 communicating with the second annular groove 12 is formed on the outer peripheral surface of the column body 1. There are multiple grouting holes 13, and the multiple grouting holes 13 are arranged circumferentially on the outer peripheral surface of the lower end of the column body 1 and respectively correspond to the clamping blocks 3; the upper end of the positioning ring 2 is used to be inserted into the second annular groove 12 of the upper column body 1, and the lower end of the positioning ring 2 is inserted into the first annular groove 11. Preferably, it is fixedly connected to the first annular groove 11 by bolts 6; the positioning ring 2 is in clearance fit with the first annular groove 11 and the second annular groove 12. The gap between the first annular groove 11 and the inner side wall of the positioning ring 2 and the gap between the second annular groove 12 and the inner side wall of the positioning ring 2 form a cavity when connecting and assembling the two column bodies 1; multiple clamping blocks 3 are elastically connected to the upper end of the positioning ring 2 along the circumferential direction of the positioning ring 2.

[0030] During the assembly of this embodiment, lower the upper column body 1 so that the upper end of the positioning ring 2 is inserted into the second annular groove 12 of the upper column body 1. The clamping blocks 3 are squeezed and contracted at the upper end of the positioning ring 2. Rotate the upper column body 1 so that the clamping blocks 3 pop up and are clamped at the lower end of the upper column body 1, thereby quickly inserting and positioning the frame column. Moreover, the clamping blocks 3 can limit the rotation and bending of the column body 1, thereby improving the torsional and flexural strengths of the connection nodes of the frame column; through the grouting holes 13, cement mortar can be poured into the cavity formed by the positioning ring 2 and the first annular groove 11 and the second annular groove 12. After the cement mortar solidifies, the connection between the two column bodies 1 can be completed.

[0031] Specifically, a plurality of vertically extending mounting grooves 21 are arranged circumferentially on the outer peripheral surface of the upper end of the positioning ring 2. The clamping blocks 3 are arranged vertically, and both the upper and lower ends of the clamping blocks 3 are connected to the mounting grooves 21 through springs 31; a plurality of clamping grooves 121 corresponding to the mounting grooves 21 respectively are arranged circumferentially on the inner side wall of the second annular groove 12; when the positioning ring 2 is inserted into the second annular groove 12 of the upper column body 1, the clamping blocks 3 are squeezed and the springs 31 are compressed and contracted in the mounting grooves 21; when the upper column body 1 is rotated until the radial positions of the mounting grooves 21 and the clamping grooves 121 correspond, the clamping blocks 3 are no longer restricted and pop up under the restoring force of the springs 31 until they are clamped in the clamping grooves 121.

[0032] More specifically, a plurality of screws 4 corresponding to the clamping grooves 121 respectively can be arranged circumferentially at the lower end of the column body 1. The screws 4 penetrate through the middle of the clamping blocks 3 and are threadedly connected to the positioning ring 2. After the clamping blocks 3 are clamped in the clamping grooves 121, inserting and tightening the screws 4 can further improve the torsional and flexural strengths of the connection nodes of the frame column.

[0033] More specifically, a rounded corner 32 can be provided at the outer upper edge of the snap block 3, which serves as a guiding function when the upper column 1 is lowered, making it easier for the snap block 3 to be squeezed and contracted at the upper end of the positioning ring 2, and it can be inserted into the second annular groove 12 of the upper column 1 more smoothly along with the upper end of the positioning ring 2.

[0034] Furthermore, a plurality of radially distributed grooves 51 can be provided on both the upper and lower end faces of the column 1. These grooves 51 communicate with the first annular groove 11, which can increase the contact area between the upper and lower columns 1 and the cement mortar, making the connection between the cement mortar and the two columns 1 more reliable, thereby increasing the connection stability.

[0035] More specifically, the column 1 can be set as a hollow structure. A plurality of reinforcing plates 5 corresponding to the grooves 51 are provided inside the column 1. The reinforcing plates 5 extend along the axial direction of the frame column. The reinforcing plates 5 are fixedly connected to the inner wall of the column 1. Grooves 51 are provided on the upper end faces of the reinforcing plates 5. After the assembly is completed, the cement mortar can be poured into the column 1 through the grouting hole 13. This can reduce the weight of the entire column 1 during assembly, making it easier to hoist the column 1.

[0036] It should be noted that this embodiment can also be used for connection with the base, as long as a structure identical to the top of the column 1 is provided on the base.

[0037] The usage method or working principle of the present utility model is as follows:

[0038] First, prefabricate the column 1 and the reinforcing plates 5 in the factory. Insert the lower end of the positioning ring 2 into the first annular groove 11 and fix it with bolts 6. Then transport the column 1 to the construction site. Hoist one column 1 above another column 1 by hoisting. After aligning the position of the positioning ring 2 with the second annular groove 12 of the upper column 1, slowly lower the upper column 1, so that the snap block 3 is squeezed and the compression spring 31 contracts in the installation groove 21; until the end faces of the two columns 1 come into contact, operate the crane to rotate the upper column 1 to make the radial positions of the installation groove 21 and the snap groove 121 correspond, so that the snap block 3 is no longer restricted and bounces under the restoring force of the spring 31, thereby being snapped into the snap groove 121, and further restricting the rotation of the upper column 1; then insert the screw 4 and tighten it to limit the upper column 1; finally, pour the cement mortar into the cavity formed by the positioning ring 2, the first annular groove 11, and the second annular groove 12 through the grouting hole 13 of the upper column 1. The cement mortar then enters the grooves 51 and the column 1 through this cavity. After the cement mortar solidifies, the connection between the two columns 1 can be completed.

[0039] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model.

Claims

1. A prefabricated and assembled concrete frame column, characterized in that, It includes a cylinder (1), a positioning ring (2) and a plurality of clamping blocks (3); a first annular groove (11) is formed on the upper end face of the cylinder (1), a second annular groove (12) is formed on the lower end face of the cylinder (1), and a grouting hole (13) communicating with the second annular groove (12) is formed on the outer peripheral surface of the cylinder (1); the upper end of the positioning ring (2) is used to be inserted into the second annular groove (12) of the upper cylinder (1), the lower end of the positioning ring (2) is inserted into the first annular groove (11), and the positioning ring (2) has a clearance fit with the first annular groove (11) and the second annular groove (12); the plurality of clamping blocks (3) are arranged along the circumferential direction of the positioning ring (2) and elastically connected to the upper end of the positioning ring (2); when the positioning ring (2) is inserted into the second annular groove (12) of the upper cylinder (1), the clamping blocks (3) contract at the upper end of the positioning ring (2); when the upper cylinder (1) is rotated, the clamping blocks (3) pop up and are clamped at the lower end of the upper cylinder (1).

2. The prefabricated and assembled concrete frame column according to claim 1, wherein A plurality of mounting grooves (21) are arranged along the circumferential direction on the outer peripheral surface of the upper end of the positioning ring (2), and the clamping blocks (3) are elastically connected in the mounting grooves (21); a plurality of clamping grooves (121) corresponding to the mounting grooves (21) respectively are arranged along the circumferential direction on the inner side wall of the second annular groove (12); when the positioning ring (2) is inserted into the second annular groove (12) of the upper cylinder (1), the clamping blocks (3) are squeezed and contract in the mounting grooves (21); when the upper cylinder (1) is rotated until the radial positions of the mounting grooves (21) and the clamping grooves (121) correspond, the clamping blocks (3) pop up and are clamped in the clamping grooves (121).

3. The prefabricated and assembled concrete frame column according to claim 2, characterized in that, The clamping blocks (3) are vertically arranged, and both the upper and lower ends of the clamping blocks (3) are connected to the mounting grooves (21) through springs (31).

4. The precast and assembled concrete frame column according to claim 2 or 3, characterized in that, A plurality of screws (4) corresponding to the clamping grooves (121) respectively are arranged along the circumferential direction at the lower end of the cylinder (1), and the screws (4) penetrate through the clamping blocks (3) and are threadedly connected to the positioning ring (2).

5. The prefabricated precast concrete frame column according to claim 4, wherein, A rounded corner (32) is provided at the outer upper edge of the clamping block (3).

6. The precast and assembled concrete frame column according to claim 1, wherein A plurality of grooves (51) distributed in a radial pattern are formed on both the upper and lower end faces of the cylinder (1), and the grooves (51) communicate with the first annular groove (11) and the first annular groove (11).

7. The prefabricated and assembled concrete frame column according to claim 6, wherein The cylinder (1) has a hollow structure, and a plurality of reinforcing plates (5) corresponding to the grooves (51) respectively are arranged inside the cylinder (1), the reinforcing plates (5) extend along the axial direction of the frame column, the reinforcing plates (5) are connected to the inner wall of the cylinder (1), and the grooves (51) are formed on the upper end face of the reinforcing plates (5).

8. The precast and assembled concrete frame column according to claim 1, characterized in that, A plurality of grouting holes (13) are provided, and the plurality of grouting holes (13) are arranged along the circumferential direction on the outer peripheral surface of the lower end of the cylinder (1) and respectively correspond to the clamping blocks (3).

9. The prefabricated and assembled concrete frame column according to claim 1, characterized in that, The lower end of the positioning ring (2) is fixedly connected to the first annular groove (11) through a bolt (6).

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