An assembled concrete frame joint structure convenient to install and dismount

Abstract

The utility model provides a kind of assembly type concrete frame joint structure convenient to install and disassemble, it is related to concrete frame joint field, comprising: node standard piece, node standard piece is welded in prefabricated column outside, and node standard piece outside one week four end faces are symmetrically fixedly connected with connecting plate, and prefabricated beam is connected on connecting plate by bolt, and prefabricated beam frame is welded in prefabricated beam outer end;The connecting plate is provided with anti-loosening component;The bolt is fixedly connected with locking flower gear.This utility model is cooperated by locking flower gear and anti-loosening component, avoid bolt loosening under long-term vibration and other working conditions, enhance its connection stability and long-term reliability;Solve the existing assembly type frame concrete structure connecting joint, although convenient to install and disassemble, but bolt used for connecting prefabricated beam is easy to loosen under long-term vibration and other working conditions, can reduce the constraint effect of node to prefabricated beam, affect the connection stability and long-term reliability problem.

Description

Technical Field

[0001] This utility model relates to the field of concrete frame joint technology, and in particular to a prefabricated concrete frame joint structure that is easy to install and disassemble. Background Technology

[0002] Prefabricated buildings, with their advantages of fast construction speed, minimal environmental impact, high building quality, and labor saving, have become the main direction of industrialized construction development. In prefabricated concrete structures, major load-bearing components such as beams and columns are prefabricated in a factory and then transported to the construction site for assembly.

[0003] For example, an existing patent application (CN202122468459.2) discloses a prefabricated frame concrete structure connection node. Although this connection node is easy to install and disassemble, it mainly relies on bolt structure to connect precast beams. These bolts are prone to loosening under long-term vibration and other working conditions, which will reduce the constraint effect of the connection node on the precast beams and affect its connection stability and long-term reliability. Utility Model Content

[0004] This utility model relates to a prefabricated concrete frame joint structure that is easy to install and disassemble. It solves the problem that although the prefabricated frame concrete structure connection joint disclosed in the prior art is easy to install and disassemble, the bolts used to connect the precast beams are prone to loosening under long-term vibration and other working conditions, which will reduce the constraint effect of the joint on the precast beams and affect the stability and long-term reliability of the connection.

[0005] In a first aspect, this utility model provides a prefabricated concrete frame joint structure that is easy to install and disassemble, specifically including: a standard joint component, which is welded to the outside of a precast column. A precast column frame is welded to both the upper and lower ends of the precast column. The standard joint component is a square tube. Connecting plates are symmetrically fixed to the four end faces of the standard joint component. A precast beam is bolted to the connecting plates, and a precast beam frame is welded to the outer end of the precast beam. An anti-loosening component is provided on the connecting plates. A locking gear is fixedly connected to the bolts. The anti-loosening component includes a rectangular slide cylinder, which is fixedly connected to the connecting plates. A rectangular slider is slidably connected inside the rectangular slide cylinder. A circular hole is opened at the tail of the rectangular slide cylinder. A clamping block is provided on the head end face of the rectangular slider. A spring guide rod is fixedly connected to the tail end face of the rectangular slider, penetrating the circular hole at the tail of the rectangular slide cylinder. A stainless steel spring is sleeved on the outside of the spring guide rod inside the rectangular slide cylinder.

[0006] Furthermore, when the anti-loosening component is in the anti-loosening state, the tightening block engages with the locking gear.

[0007] Furthermore, the upper end face of the connecting plate is provided with a mounting hole for the stud on the bolt to pass through, and the diameter of the mounting hole is larger than the diameter of the stud on the bolt.

[0008] Furthermore, the precast beam is an I-beam, and a fixing nut is welded to the inner side of the precast beam, which is threadedly connected to the bolt.

[0009] Furthermore, a hand-tightening nut is threaded onto the spring guide rod. The hand-tightening nut is located at the tail of the rectangular slide tube, and strip-shaped anti-slip grooves are formed in a ring array on the outer circumference of the hand-tightening nut.

[0010] This utility model provides a prefabricated concrete frame joint structure that is easy to install and disassemble, and has the following beneficial effects: 1. This utility model, through the cooperation of the locking gear and the anti-loosening component, allows the rectangular slider to move towards the bolt under the elastic force of the stainless steel spring by rotating the hand-tightening nut counterclockwise after the bolt is tightened. This causes the locking block to mesh with the locking gear, thereby locking and limiting the bolt and preventing it from loosening under long-term vibration and other working conditions. This enhances the constraint effect of the connection node on the precast beam and strengthens its connection stability and long-term reliability.

[0011] 2. By setting a hand-tightening nut, this utility model allows the hand-tightening nut to be rotated clockwise during loading and unloading operations. This causes the spring guide rod to move along the rectangular slider and the clamping block towards the tail end of the spring guide rod under the action of the thread. This causes the head end of the rectangular slider to retract into the rectangular slide cylinder. At this time, the stainless steel spring is in a compressed state, which facilitates the rotation of the bolt and avoids obstruction during the loading and unloading of precast beams.

[0012] Other advantages, objectives and features of this invention will be apparent in part from the description which follows, and in part from the understanding of those skilled in the art through study and practice of this invention. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the accompanying drawings will be briefly described below.

[0014] In the attached diagram: Figure 1 A three-dimensional structural schematic diagram of this application is shown; Figure 2 A structural schematic diagram of the precast columns, precast beams, bolts, and anti-loosening components of this application is shown; Figure 3 This invention provides a structural schematic diagram of the precast beams, bolts, and anti-loosening components from the bottom view. Figure 4 A structural schematic diagram of the node standard parts, connecting plates, and mounting holes of this application is shown; Figure 5 This paper shows a schematic diagram of a partially cut section of the rectangular slide tube of this application; Figure 6 A schematic diagram of the structure of the anti-loosening component of this application after disassembly is shown.

[0015] List of reference numerals 1. Standard node components; 101. Connecting plate; 102. Mounting holes; 2. Precast columns; 201. Precast column frame; 3. Precast beam; 301. Precast beam frame; 302. Fixing nuts; 4. Bolts; 401 locking gears; 5. Anti-loosening components; 501. Rectangular slide cylinder; 502. Rectangular slider; 503. Spring guide rod; 504. Tightening block; 505. Stainless steel spring; 506. Hand-tightening nut. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, 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 described embodiments are only some, not all, of the embodiments of this utility model. Based on the described 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.

[0017] Example 1: Please refer to Figures 1 to 6 : This utility model proposes a prefabricated concrete frame joint structure that is easy to install and disassemble, including: a standard joint component 1, which is welded to the outside of a precast column 2. Precast column frames 201 are welded to both the upper and lower ends of the precast column 2. The standard joint component 1 is a square tube. Connecting plates 101 are symmetrically fixed to the four ends of the standard joint component 1. Precast beams 3 are connected to the connecting plates 101 by bolts 4. Precast beam frames 301 are welded to the outer ends of the precast beams 3. Anti-loosening components 5 are provided on the connecting plates 101. Bolts 4 are used to connect the standard joint components. 4. A locking gear 401 is fixedly connected to the upper part; the anti-loosening component 5 includes a rectangular slide cylinder 501, which is fixedly connected to the connecting plate 101. A rectangular slider 502 is slidably connected inside the rectangular slide cylinder 501. A round hole is opened at the tail of the rectangular slide cylinder 501. A clamping block 504 is provided on the head end face of the rectangular slider 502. A spring guide rod 503 that passes through the round hole at the tail of the rectangular slide cylinder 501 is fixedly connected to the tail end face of the rectangular slider 502. A stainless steel spring 505 is sleeved on the outside of the spring guide rod 503 inside the rectangular slide cylinder 501. By adopting the above technical solution, after tightening the bolt 4, the hand-tightening nut 506 can be rotated counterclockwise. Under the elastic force of the stainless steel spring 505, the rectangular slider 502 drives the tightening block 504 to move closer to the bolt 4, and finally the tightening block 504 meshes with the locking gear 401, thereby effectively locking and limiting the bolt 4 and preventing the bolt 4 from loosening under long-term vibration and other working conditions. This improves the constraint effect of this connection node on the precast beam 3 and enhances the stability and long-term reliability of the precast beam 3 connection.

[0018] When the anti-loosening component 5 is in the anti-loosening state, the tightening block 504 engages with the locking gear 401, so that the bolt 4 is effectively limited.

[0019] The upper end face of the connecting plate 101 is provided with a mounting hole 102. The mounting hole 102 is used for the stud on the bolt 4 to pass through. The diameter of the mounting hole 102 is larger than the diameter of the stud on the bolt 4, so as to facilitate the passage of the stud on the bolt 4.

[0020] The precast beam 3 is an I-beam. A fixing nut 302 is welded to the inner side of the precast beam 3. The fixing nut 302 is threadedly connected to the bolt 4. By welding the fixing nut 302 to the inner side of the precast beam 3, the fixing nut 302 can be prevented from loosening.

[0021] Example 2, based on Example 1, such as Figure 5 and Figure 6 As shown, a hand-tightening nut 506 is threadedly connected to the spring guide rod 503. The hand-tightening nut 506 is located at the tail of the rectangular slide cylinder 501. The outer circumferential surface of the hand-tightening nut 506 is provided with strip-shaped anti-slip grooves in an annular array. By adopting the above technical solution, during loading and unloading operations, the hand-tightening nut 506 can be rotated clockwise, causing the spring guide rod 503 to move towards the tail end of the spring guide rod 503 under the action of the thread, so that the head end of the rectangular slider 502 retracts into the rectangular slide cylinder 501, and at this time the stainless steel spring 505 is in a compressed state, which facilitates the rotation of the bolt 4 and avoids obstruction during the loading and unloading of the precast beam 3.

[0022] The working principle of this embodiment is as follows: During assembly, firstly, rotate the hand-tightening nut 506 clockwise, so that the hand-tightening nut 506 moves towards the head end of the spring guide rod 503 under the action of the thread, so that the hand-tightening nut 506 is in close contact with the tail end face of the rectangular slide cylinder 501. Then, continue to rotate the hand-tightening nut 506 clockwise. Under the action of the thread, the spring guide rod 503 moves towards the tail end of the spring guide rod 503 along with the rectangular slider 502 and the clamping block 504, so that the head end of the rectangular slider 502 retracts into the rectangular slide cylinder 501, and at this time, the stainless steel spring 505 is in a compressed state. Next, place the precast beam 3 between the upper and lower connecting plates 101. After the fixing nut 302 is aligned with the mounting hole 102, pass the stud on the bolt 4 through the mounting hole 102 and thread the bolt 4 to the fixing nut 302. The connection between the bolt 4 and the fixing nut 302 facilitates the installation and disassembly of the precast beam 3. After assembly, pour concrete. After bolt 4 is tightened, turn the hand-tightening nut 506 counterclockwise. At this time, the rectangular slider 502 moves the clamping block 504 towards the bolt 4 under the elastic force of the stainless steel spring 505. This causes the clamping block 504 to mesh with the locking gear 401, thereby locking and limiting the bolt 4 and preventing the bolt 4 from loosening under long-term vibration and other working conditions. This improves the constraint effect of this connection node on the precast beam 3 and enhances its connection stability and long-term reliability.

[0023] The following points should be noted in this article: 1. The accompanying drawings of this utility model only relate to the structures involved in this utility model; other structures can be referred to conventional designs.

[0024] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0025] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A prefabricated concrete frame joint structure that is easy to install and disassemble, comprising: The node standard component (1) is welded to the outside of the precast column (2). The precast column (2) has a precast column frame (201) welded to both the upper and lower ends. The node standard component (1) is a square tube. The four end faces of the node standard component (1) are fixedly connected to the connecting plate (101) in a symmetrical manner. The connecting plate (101) is connected to the precast beam (3) by bolts (4). The precast beam (3) has a precast beam frame (301) welded to the outer end of the precast beam (3). The characteristic is that the connecting plate (101) is provided with an anti-loosening component (5). The bolts (4) are fixedly connected with locking gears (4). 01); The anti-loosening component (5) includes a rectangular slide cylinder (501), which is fixedly connected to the connecting plate (101). A rectangular slider (502) is slidably connected inside the rectangular slide cylinder (501). A round hole is opened at the tail of the rectangular slide cylinder (501). A clamping block (504) is provided on the head end face of the rectangular slider (502). A spring guide rod (503) that passes through the round hole at the tail of the rectangular slide cylinder (501) is fixedly connected to the tail end face of the rectangular slider (502). A stainless steel spring (505) is sleeved on the outside of the spring guide rod (503) inside the rectangular slide cylinder (501).

2. The prefabricated concrete frame joint structure for easy installation and disassembly according to claim 1, characterized in that: When the anti-loosening component (5) is in the anti-loosening state, the tightening block (504) meshes with the locking gear (401).

3. The prefabricated concrete frame joint structure for easy installation and disassembly according to claim 1, characterized in that: The upper end face of the connecting plate (101) is provided with a mounting hole (102), which is used for the stud on the bolt (4) to pass through. The diameter of the mounting hole (102) is larger than the diameter of the stud on the bolt (4).

4. The prefabricated concrete frame joint structure for easy installation and disassembly according to claim 1, characterized in that: The precast beam (3) is an I-beam, and a fixing nut (302) is welded to the inner side of the precast beam (3). The fixing nut (302) is threadedly connected to the bolt (4).

5. The prefabricated concrete frame joint structure for easy installation and disassembly according to claim 1, characterized in that: A hand-tightening nut (506) is threaded onto the spring guide rod (503). The hand-tightening nut (506) is located at the tail of the rectangular slide cylinder (501). The outer circumference of the hand-tightening nut (506) is provided with strip-shaped anti-slip grooves in an annular array.

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