Longitudinal steel bar connection conversion steel joint for prefabricated frame column of fabricated concrete structure

Abstract

The utility model provides a longitudinal steel bar connection conversion steel joint for a prefabricated frame column of an assembly type concrete structure, and relates to the field of assembly type concrete structures. Comprising a mounting plate, a limiting mechanism is arranged on the lower surface of the mounting plate, the limiting mechanism comprises a fixing cylinder fixedly connected with the lower surface of the mounting plate, a spring is fixedly connected to the interior of the fixing cylinder, a limiting column is fixedly connected to the end, away from the fixing cylinder, of the spring, and a first sliding block is fixedly connected to one side of the limiting column. According to the steel bar connection conversion steel joint, through cooperative use of the fixing cylinders, springs, limiting columns, pulling plates, limiting grooves, limiting rods, fixing blocks, first sliding grooves and first sliding blocks, when a prefabricated frame is subjected to concrete pouring, the prefabricated frame is supported through second supporting columns, and the prefabricated frame is prevented from falling off during pouring; and the adjusting rods can be fixed through the first adjusting rods and the second adjusting rods, the prefabricated frame is prevented from loosening, and the frame columns are supported.

Description

Technical Field

[0001] This utility model relates to a steel reinforcement connection conversion steel node, specifically a longitudinal steel reinforcement connection conversion steel node for precast frame columns in prefabricated concrete structures, belonging to the technical field of prefabricated concrete structures. Background Technology

[0002] According to Article 7.1.2 of the Technical Specification for Prefabricated Concrete Structures (JGJ1-2014), the longitudinal reinforcement of prefabricated frame columns in prefabricated concrete frame structures should preferably be connected by sleeve grouting. This connection method is currently the most commonly used in actual construction.

[0003] A search revealed Chinese patent CN212104527U, which discloses a conversion steel node for connecting longitudinal reinforcement bars of precast concrete frame columns. This node includes longitudinal reinforcement bars of the lower precast frame column, conversion angle steel, connecting steel plates, and high-strength bolts. This invention converts the longitudinal reinforcement bars of precast frame columns into high-strength bolt connections, truly realizing a dry-type precast connection for concrete frame columns. Furthermore, prefabrication is simple, installation is extremely convenient and efficient, significantly shortening on-site installation time and ensuring construction quality.

[0004] While the above solutions can achieve prefabricated dry connection of concrete frame columns, the steel reinforcement connection conversion steel nodes in the aforementioned patents are difficult to support the frame columns. During construction, the structural performance of the conversion steel nodes in supporting the frame columns is insufficient, leading to safety hazards. Therefore, we provide a prefabricated concrete frame column longitudinal steel reinforcement connection conversion steel node to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a longitudinal steel bar connection conversion steel node for prefabricated frame columns in assembled concrete structures in order to solve the above-mentioned problems, thereby solving the problem of difficulty in supporting frame columns in the prior art.

[0006] This utility model is achieved through the following technical solution: a precast concrete frame column longitudinal reinforcement connection conversion steel node, including an installation plate, a limiting mechanism provided on the lower surface of the installation plate, the limiting mechanism including a fixed cylinder fixedly connected to the lower surface of the installation plate, a spring fixedly connected inside the fixed cylinder, a limiting post fixedly connected to the end of the spring away from the fixed cylinder, a first slider fixedly connected to one side of the limiting post, a pull plate fixedly connected to the other side of the first limiting post, the outer surface of the limiting post slidingly connected to the inside of the fixed cylinder, a limiting groove opened on the outer surface of the limiting post, a limiting rod slidably connected inside the limiting groove, a fixing block rotatably connected to the other end of the limiting rod, and a fixed block fixedly connected to one side of the fixing cylinder on one side of the fixing block.

[0007] Preferably, the inside of the fixed cylinder is provided with a first sliding groove, and the inside of the first sliding groove is slidably connected to one side of the first slider. The first sliding groove can guide the limiting post and prevent the limiting post from falling off during sliding.

[0008] Preferably, a third sliding groove is provided on the other side of the fixed cylinder. The interior of the third sliding groove is slidably connected to one side of the pull plate. When the limiting post is pulled to slide, the third sliding groove allows the pull plate to slide inside the third sliding groove.

[0009] Preferably, a slide rail is fixedly connected to one side of the mounting plate, a slot is provided on one side of the slide rail, and a second support column is fixedly connected to the upper surface of the slide rail. The slide rail is fixed on the second support column, so that the second slider can support the second support column.

[0010] Preferably, the inside of the slot is slidably connected to the outer surface of the limiting post, and the outer surface of the limiting post is inserted into the inside of the second slider. The limiting post can fix the second slider in the slide rail to prevent slippage during support.

[0011] Preferably, the inner wall of the slide rail is provided with a second slide groove, and a second slider is slidably connected inside the second slide groove. When it is necessary to adjust the angle of the second support column, the adjustment can be made inside the slide groove.

[0012] Preferably, the lower end of the second slider is hinged to a first adjusting rod, the lower end of the first adjusting rod is slidably connected to a second adjusting rod, and the lower end of the second adjusting rod is hinged to a mounting bracket. The angle of the second support can be adjusted according to the first connecting rod and the second connecting rod.

[0013] Preferably, a first support column is fixedly connected to one side of the mounting frame, and a fixing bolt is fixedly connected to the upper end of the first support column. A steel bar body is inserted into the fixing bolt. The fixing bolt can be fixed by the support column, and the steel bar body can be connected by the fixing bolt.

[0014] This utility model provides a transition steel node for connecting longitudinal reinforcement bars of precast frame columns in assembled concrete structures, which has the following beneficial effects:

[0015] The steel reinforcement connection conversion joint uses a combination of a fixed cylinder, spring, limiting column, pull plate, limiting groove, limiting rod, fixing block, first sliding groove and first sliding block. When the precast frame is poured with concrete, the second support column supports the precast frame to prevent it from falling off during pouring. The first adjusting rod and the second adjusting rod can fix the adjusting rod to prevent the precast frame from loosening, thus supporting the frame column.

[0016] The steel rebar connection conversion steel node uses a combination of slide rail, second slide groove, slot, first adjusting rod, second adjusting rod and mounting bracket. The first adjusting rod and second adjusting rod can be used to adjust the support angle of the second support column, which helps to improve the support effect of the second support column. When adjusting the angle, the second slider can slide inside the slide rail. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the limiting mechanism of this utility model;

[0019] Figure 3 This is a cross-sectional three-dimensional structural diagram of the limiting mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the limiting column of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the slide rail of this utility model;

[0022] Figure 6 This is a three-dimensional cross-sectional view of the slide rail of this utility model.

[0023] [Explanation of Key Component Symbols]

[0024] 1. Mounting plate;

[0025] 2. Limiting mechanism; 201. Fixed cylinder; 202. Spring; 203. Limiting post; 204. Pull plate; 205. Limiting groove; 206. Limiting rod; 207. Fixed block; 208. First slide groove; 209. First slider;

[0026] 3. Second slider; 4. Slide rail; 5. Second slide groove; 6. Slot; 7. First adjusting rod; 8. Second adjusting rod; 9. Mounting bracket; 10. Third slide groove; 11. First support column; 12. Second support column; 13. Fixing bolt; 14. Reinforcing bar body. Detailed Implementation

[0027] This utility model embodiment provides a conversion steel node for connecting longitudinal reinforcement bars of precast frame columns in assembled concrete structures.

[0028] Please see Figure 6The system includes a mounting plate 1, a slide rail 4 fixedly connected to one side of the mounting plate 1, a second slide groove 5 opened on the inner wall of the slide rail 4, and a second slider 3 slidably connected inside the second slide groove 5. The second slide groove 5 inside the slide rail 4 allows the second slider 3 to slide inside the second slide groove 5, thereby adjusting according to the support angle and improving the support effect.

[0029] Please see Figure 1 and Figure 5 The lower end of the second slider 3 is hinged to a first adjusting rod 7, and the lower end of the first adjusting rod 7 is slidably connected to a second adjusting rod 8. The lower end of the second adjusting rod 8 is hinged to a mounting bracket 9. The first adjusting rod 7 is mounted on the second slider 3. The angle of support can be adjusted by the first adjusting rod 7 and the second adjusting rod 8. The second adjusting rod 8 is mounted on the mounting bracket 9. The mounting bracket 9 can fix the second adjusting rod 8 to prevent it from falling off during support. A first support column 11 is fixedly connected to one side of the mounting bracket 9. A fixing bolt 13 is fixedly connected to the upper end of the first support column 11. A steel bar body 14 is inserted into the inside of the fixing bolt 13. The mounting bracket 9 is mounted on the first support column 11. The fixing bolt 13 can be fixed by the first support column 11. The fixing bolt 13 can fix the connection point of the steel bar body 14, which is beneficial to improving the connection effect of the steel joint.

[0030] Please see Figure 3 The slide rail 4 has a slot 6 on one side. The inside of the slot 6 is slidably connected to the outer surface of the limiting post 203. The outer surface of the limiting post 203 is inserted into the inside of the second slider 3. The limiting post 203 can be inserted into the inside of the slot 6 to fix the second slider 3 and prevent it from sliding during support, thus playing a fixing role. The upper surface of the slide rail 4 is fixedly connected to the second support post 12. The mounting plate 1 is installed on the slide rail 4. The limiting post 203 can fix the second slider 3 inside the slide rail 4. The slot 6 on the slide rail 4 can be fixed according to the position of the second slider 3. The slide rail 4 is fixed on the second support post 12, and the support angle of the second support post 12 can be adjusted.

[0031] Please see Figure 2 and Figure 4A limiting mechanism 2 is provided on the lower surface of the mounting plate 1. The limiting mechanism 2 includes a fixed cylinder 201 fixedly connected to the lower surface of the mounting plate 1. A third sliding groove 10 is provided on the other side of the fixed cylinder 201. The interior of the third sliding groove 10 is slidably connected to one side of the pull plate 204. The third sliding groove 10 provided inside the fixed cylinder 201 allows the pull plate 204 to slide inside the third sliding groove 10, thereby pulling the limiting post 203 to slide. A first sliding groove 208 is provided inside the fixed cylinder 201. The interior of the first sliding groove 208 is slidably connected to one side of the first slider 209. The first sliding groove 208 provided inside the fixed cylinder 201 can guide the first slider 209 and prevent the limiting post 203 from falling off during sliding.

[0032] A spring 202 is fixedly connected inside the fixed cylinder 201. A limiting post 203 is fixedly connected to one end of the spring 202 away from the fixed cylinder 201. A first slider 209 is fixedly connected to one side of the limiting post 203, and a pull plate 204 is fixedly connected to the other side of the first limiting post 203. The outer surface of the limiting post 203 is slidably connected to the inside of the fixed cylinder 201. A limiting groove 205 is formed on the outer surface of the limiting post 203. A limiting rod 206 is slidably connected inside the limiting groove 205. A fixing block 207 is rotatably connected to the other end of the limiting rod 206. One side of the fixing block 207 is fixedly connected to one side of the fixed cylinder 201. When the angle of the second support column 12 is adjusted, the second slider 3 can slide inside the slide rail 4, thereby facilitating the adjustment of the support angle of the second support column 12. The limiting post 203 can fix the second slider 3 to prevent loosening during support. The limiting mechanism 2 can play a supporting role, which helps to improve the support effect.

[0033] Working principle: The mounting plate 1 is connected to the steel reinforcement body 14 of the precast frame column by fixing bolts 13, serving as the load-bearing base of the entire node. Spring 202, in its natural state, pushes the limiting post 203 into the slot 6 of the slide rail 4, fixing the second slider 3 within the slide rail 4 to prevent slippage. Pulling the pull plate 204 overcomes the elastic force of the spring 202, causing the limiting post 203 to exit from the slot 6. At this time, the limiting rod 206 slides along the limiting groove 205. The fixing block 207 provides a rotation fulcrum, ensuring the linear movement of the limiting post 203. The second slider 3 slides within the second slide groove 5 of the slide rail 4, changing the hinge angle of the first adjusting rod 7 and the second adjusting rod 8, thereby adjusting the tilt angle of the second support column 12 to adapt to different support requirements. Releasing the pull plate 204 causes the spring 202 to rebound, pushing the limiting post 203 into the corresponding slot 6, fixing the second slider 3, completing the angle adjustment. The support column 12 is rigidly connected by the slide rail 4, the first adjusting rod 7, and the second adjusting rod 8 to form a triangular support structure, resisting the lateral force during pouring and preventing the precast frame from falling off. If the external force causes slight displacement of the precast frame, the spring 202 provides elastic compensation through the extension and retraction of the limiting column 203 to avoid structural damage caused by rigid impact. The sliding cooperation between the limiting rod 206 and the limiting groove 205 restricts the stroke of the limiting column 203. The first slider 209 cooperates with the first sliding groove 208 of the fixed cylinder 201 to ensure the linear movement of the limiting column 203 and avoid deflection. By extending and retracting the length of the second adjusting rod 8, the height of the mounting frame 9 is adjusted so that the first support column 11 and the second support column 12 form a coordinated support to adapt to different floor height requirements. Multiple conversion steel nodes are extended through the splicing of the slide rail 4 and the mounting plate 1 to form a grid support system, which is suitable for large-span frame structures and realizes the support of the frame columns.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A precast concrete frame column longitudinal reinforcement connection conversion steel node, comprising an installation plate (1), characterized in that: The lower surface of the mounting plate (1) is provided with a limiting mechanism (2). The limiting mechanism (2) includes a fixed cylinder (201) fixedly connected to the lower surface of the mounting plate (1). A spring (202) is fixedly connected inside the fixed cylinder (201). A limiting post (203) is fixedly connected to one end of the spring (202) away from the fixed cylinder (201). A first slider (209) is fixedly connected to one side of the limiting post (203). A pull plate (204) is fixedly connected to the other side of the limiting post (203). The outer surface of the limiting post (203) is slidably connected to the inside of the fixed cylinder (201). A limiting groove (205) is opened on the outer surface of the limiting post (203). A limiting rod (206) is slidably connected inside the limiting groove (205). A fixing block (207) is rotatably connected to the other end of the limiting rod (206). One side of the fixing block (207) is fixedly connected to one side of the fixed cylinder (201).

2. The precast concrete frame column longitudinal reinforcement connection transition steel node according to claim 1, characterized in that: The fixed cylinder (201) has a first groove (208) inside, and the inside of the first groove (208) is slidably connected to one side of the first slider (209).

3. The precast concrete frame column longitudinal reinforcement connection transition steel node according to claim 1, characterized in that: A third groove (10) is provided on the other side of the fixed cylinder (201), and the interior of the third groove (10) is slidably connected to one side of the pull plate (204).

4. The precast concrete frame column longitudinal reinforcement connection transition steel node according to claim 1, characterized in that: A slide rail (4) is fixedly connected to one side of the mounting plate (1), and a slot (6) is provided on one side of the slide rail (4). A second support column (12) is fixedly connected to the upper surface of the slide rail (4).

5. The precast concrete frame column longitudinal reinforcement connection transition steel node according to claim 4, characterized in that: The interior of the slot (6) is slidably connected to the outer surface of the limiting post (203), and the outer surface of the limiting post (203) is inserted into the interior of the second slider (3).

6. The precast concrete frame column longitudinal reinforcement connection transition steel node according to claim 4, characterized in that: The inner wall of the slide rail (4) is provided with a second slide groove (5), and a second slider (3) is slidably connected inside the second slide groove (5).

7. A precast concrete frame column longitudinal reinforcement connection transition steel node according to claim 6, characterized in that: The lower end of the second slider (3) is hinged to a first adjusting rod (7), the lower end of the first adjusting rod (7) is slidably connected to a second adjusting rod (8), and the lower end of the second adjusting rod (8) is hinged to a mounting bracket (9).

8. A precast concrete frame column longitudinal reinforcement connection transition steel node according to claim 7, characterized in that: A first support column (11) is fixedly connected to one side of the mounting bracket (9), and a fixing bolt (13) is fixedly connected to the upper end of the first support column (11). A steel bar body (14) is inserted into the inside of the fixing bolt (13).

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