Connecting structure for large-span raft foundation supporting columns of residence

Abstract

The utility model relates to the technical field of embedded ground feet, in particular to a connecting structure of a large-span raft foundation supporting column of a house, which comprises a supporting frame, and a connecting assembly is arranged above the supporting frame. The connecting assembly comprises a locking head, a screw cap, a square inserting block, a positioning pin, a semicircular ring, an outer groove, a limiting through groove, a sliding plate, a poke rod, a semicircular plate, a rubber pad and a square groove. A square inserting block of an embedded bolt is clamped into a square groove of a locking head, then a screw cap is rotated to enable a rubber pad to press the square inserting block, then a poke rod is poked, a sliding plate slides in limiting through grooves, and finally the sliding plate can be located in the two limiting through grooves at the same time. And finally, the screw cap is matched with the square groove to ensure that the embedded bolt is vertically and rapidly installed, operation is convenient, the labor cost is saved, after the positioning pin is finally installed, the position of the square insertion block cannot be changed at will and shaken, and the stability of the embedded bolt after installation is improved.

Description

Technical Field

[0001] This utility model relates to the field of pre-embedded foundation technology, specifically a connection structure for support columns of large-span raft foundations for residential buildings. Background Technology

[0002] In the construction of raft foundations for high-rise steel structures, the pre-embedding of anchor bolts is a critical step, and the accuracy of the pre-embedding directly affects the installation deviation of the first steel column. Traditional methods use positioning templates or steel-wood hybrid fixing frames to fix the anchor bolts. Since the height of the raft foundation is generally above 1.2m, the lower end of the pre-embedded bolts is suspended in the air, making it difficult to ensure that the pre-embedded bolts will not shift during construction processes such as tying reinforcing bars, welding, formwork erection, and concrete pouring.

[0003] Publication No. CN216948794U discloses a pre-embedded anchor bolt structure for high-rise steel structure residential buildings, including vertical pre-embedded bolts and a steel mesh for the raft foundation. The middle part of the pre-embedded bolt is fixedly connected to the steel mesh, and a support frame is set below the pre-embedded bolt. The lower end of the pre-embedded bolt is fixedly connected to the upper part of the support frame, and the lower part of the support frame is fixedly connected to the waterproof protective layer at the bottom of the foundation pit. The support frame at the lower end of the pre-embedded bolt ensures that the pre-embedded bolt is fixedly connected to the waterproof protective layer at the bottom of the raft foundation pit through the support frame. Under the combined action of the steel mesh and the support frame, the pre-embedded bolt is less likely to shift during subsequent raft foundation construction. This device has a simple structure, high structural strength, good stability, and is easy to construct. However, this patent still has the following problems in actual use:

[0004] In the aforementioned device, during the welding of the second bend of the pre-embedded bolt, it is impossible to guarantee that the pre-embedded bolt will always be in a vertical state. If an invisible tilt occurs, it will cause misalignment in subsequent construction, affecting the construction. Furthermore, the welding method means that if misalignment is found after the pre-embedded bolt is fixed, it cannot be adjusted in time. It is necessary to cut it before welding another bolt, which is too troublesome. Moreover, the required strength of the welding requires a certain level of skill from the workers, and the labor cost of skilled welders is also relatively high.

[0005] A connection structure for the support columns of large-span raft foundations for residential buildings is proposed to address the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a connection structure for the support columns of a large-span raft foundation for residential buildings, in order to solve the problems mentioned in the background art. In the above-mentioned device, the second bend of the pre-embedded bolt cannot be guaranteed to be vertical every time during welding. If there is an invisible tilt, it will cause misalignment in subsequent construction, affecting the construction. Furthermore, the welding method means that if misalignment is found after the pre-embedded bolt is fixed, it cannot be adjusted in time. It is necessary to cut it before welding another bolt, which is too troublesome. Moreover, the required strength of the welding requires a certain level of skill from the workers, and the labor cost of skilled welders is also high.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] Design a connection structure for the support column of a large-span raft foundation for residential buildings, including a support frame. A connection assembly is provided on the upper part of the support frame. The connection assembly includes a locking head, a cap, a square insert, a positioning pin, a semi-circular ring, an outer groove, a limiting through groove, a sliding plate, a toggle rod, a semi-circular plate, a rubber pad, and a square groove. The locking head is fixed to the upper surface of the support frame. A cap is rotatably connected to the upper part of the locking head via a pin. Both the locking head and the cap have square grooves inside.

[0009] Preferably, the square groove is clearance-fitted with the outer wall of the square insert, the screw cap is internally threaded with a positioning pin, the end of the positioning pin is in contact with the square insert, and the locking head and the surface of the screw cap are both fixed with a semi-circular ring by bolts. The semi-circular ring is provided with an outer groove and a limiting through groove inside, and the outer groove and the limiting through groove are connected.

[0010] Preferably, a sliding plate is slidably connected inside the limiting groove, a toggle rod is fixedly connected to the outer wall of the sliding plate, the outer wall of the toggle rod is slidably connected to the outer groove, the sliding plate is fixedly connected to the outer wall of the semicircular plate, the outer wall of the semicircular plate is slidably connected to the semicircular ring, and a rubber pad is fixedly connected inside the screw cap, the rubber pad being in contact with the outer wall of the square insert.

[0011] Preferably, the outer wall of the square insert is fixed with pre-embedded bolts.

[0012] Preferably, an adjustment assembly is provided below the support frame. The adjustment assembly includes a movable cavity, a knob, a threaded column, a stabilizing block, a pad, and a fixing bolt. The movable cavity is located inside the support frame, and a stabilizing block is slidably connected inside the movable cavity. The stabilizing block is fixed to the upper end of the threaded column.

[0013] Preferably, the outer wall of the threaded column is threaded with a knob, and the knob is rotatably connected to the support frame via a bearing.

[0014] Preferably, a pad is fixed to the lower end of the threaded column, and the pad has two fixing bolts connected to its internal thread.

[0015] The present invention proposes a connection structure for the support column of a large-span raft foundation for residential buildings. The advantages are as follows: by inserting the square plug of the pre-embedded bolt into the square groove of the locking head, and then rotating the cap to press the rubber pad against the square plug, and then moving the lever to make the slide slide in the limiting groove, the slide can be simultaneously located in two limiting grooves. Finally, the cap and the square groove can ensure that the pre-embedded bolt is vertical and can be installed quickly. The operation is convenient and saves labor costs. Furthermore, after the positioning pin is installed, the position of the square plug cannot be changed or shaken at will, which increases the stability of the pre-embedded bolt after installation.

[0016] By rotating the knob, the threaded column can be raised and lowered within the movable cavity, allowing the overall height of the support frame to change slightly, thus enabling the device to adapt to errors that may occur during the construction process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front structure;

[0018] Figure 2 This is a schematic diagram of the top view structure;

[0019] Figure 3 for Figure 2 A magnified structural diagram of region C in the middle;

[0020] Figure 4 This is a schematic diagram of a partial cross-sectional structure of two semi-circular rings;

[0021] Figure 5 for Figure 1 A magnified structural diagram of region B in the middle;

[0022] Figure 6 This is a cross-sectional schematic diagram of the locking head and the screw cap.

[0023] Figure 7 for Figure 1 A magnified structural diagram of region A in the middle.

[0024] In the diagram: 1. Support frame; 101. Embedded bolt; 2. Connecting assembly; 201. Locking head; 202. Screw cap; 203. Square insert; 204. Positioning pin; 205. Semi-ring; 206. Outer groove; 207. Limiting through groove; 208. Slide plate; 209. Actuating rod; 210. Semi-circular plate; 211. Rubber pad; 212. Square groove; 3. Adjusting assembly; 301. Movable cavity; 302. Knob; 303. Threaded post; 304. Stabilizing block; 305. Pad; 306. Fixing bolt. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] See attached document Figure 1-7 In this embodiment, a connection structure for a large-span raft foundation support column for residential buildings includes a support frame 1. A connection component 2 is provided above the support frame 1. The connection component 2 connects the support frame 1 to the pre-embedded bolts 101. The connection component 2 includes a locking head 201, a screw cap 202, a square insert 203, a positioning pin 204, a semi-circular ring 205, an outer groove 206, a limiting through groove 207, a sliding plate 208, a toggle rod 209, a semi-circular plate 210, a rubber pad 211, and a square groove 212 for locking. The head 201 is fixed to the upper surface of the support frame 1. Four locking heads 201 are provided. The top of the locking head 201 is rotatably connected to the cap 202 via a pin. The cap 202 can rotate on the locking head 201. The inside of both the locking head 201 and the cap 202 is provided with a square groove 212. The square groove 212 is clearance-fitted with the outer wall of the square insert 203. The square insert 203 can be inserted into the space formed by the two square grooves 212 inside the locking head 201 and the cap 202.

[0027] The screw cap 202 has a locating pin 204 internally threaded. The locating pin 204 can move vertically when rotated. The end of the locating pin 204 is in contact with the square insert 203. The end of the locating pin 204 and the square insert 203 are pressed together to fix the square insert 203 in the space formed by the two square slots 212 inside the locking head 201 and the screw cap 202. The surfaces of the locking head 201 and the screw cap 202 are both fixed with semi-circular rings 205 by bolts. The semi-circular ring 205 has an outer slot 206 and a limiting through slot 207 inside. The outer slot 206 is connected to the limiting through slot 207. The limiting through slot 207 is slidably connected to a sliding plate 208 inside the limiting through slot 207. The sliding plate 208 slides inside the limiting through slot 207. The limiting through slot 207 plays a certain limiting role in the movement of the sliding plate 208. The sliding plate 208 will not separate from the limiting through slot 207.

[0028] A lever 209 is fixedly connected to the outer wall of the slide plate 208. The lever 209 drives the slide plate 208 to slide. The outer wall of the lever 209 is slidably connected to the outer groove 206. The lever 209 slides inside the outer groove 206. The slide plate 208 is fixedly connected to the outer wall of the semicircular plate 210. The slide plate 208 drives the semicircular plate 210 to move. The outer wall of the semicircular plate 210 is slidably connected to the semicircular ring 205. The semicircular plate 210 blocks the hollowed-out area in the middle of the semicircular ring 205. The internal sliding mechanism has a rubber pad 211 fixedly connected to the inside of the cap 202. The rubber pad 211 is fixedly connected to the inner wall of the square groove 212 provided inside the cap 202. The rubber pad 211 is in contact with the outer wall of the square insert 203. The rubber pad 211 increases the stability of the square insert 203 after it is inserted into the square groove 212 and increases the friction between the square groove 212 and the square insert 203. The outer wall of the square insert 203 is fixedly connected to a pre-embedded bolt 101, and the square insert 203 moves together with the pre-embedded bolt 101.

[0029] By inserting the square insert 203 of the pre-embedded bolt 101 into the square groove 212 of the locking head 201, and then rotating the cap 202 to press the rubber pad 211 against the square insert 203, and then moving the lever 209, the lever 209 drives the slide plate 208 to move, so that the slide plate 208 slides in the limiting through groove 207. Finally, the slide plate 208 can be located in both limiting through grooves 207 at the same time. Ultimately, the cap 202 and the square groove 212 can ensure that the pre-embedded bolt 101 is kept vertical and can be installed quickly. The operation is convenient and saves labor costs. After the positioning pin 204 is installed, the position of the square insert 203 cannot be changed or shaken at will, which increases the stability of the pre-embedded bolt 101 after installation.

[0030] An adjustment assembly 3 is provided below the support frame 1. The adjustment assembly 3 includes a movable cavity 301, a knob 302, a threaded post 303, a stabilizing block 304, a pad 305, and a fixing bolt 306. The movable cavity 301 is located inside the support frame 1. The stabilizing block 304 is slidably connected inside the movable cavity 301 and slides within the movable cavity 301. The stabilizing block 304 is fixed to the upper end of the threaded post 303 and guides the movement of the threaded post 303. The threaded column 303 has a knob 302 threadedly connected to its outer wall. When the knob 302 rotates, it drives the threaded column 303 to move vertically. The knob 302 is rotatably connected to the support frame 1 through a bearing. The knob 302 will not separate from the support frame 1. A pad 305 is fixedly connected to the lower end of the threaded column 303. The threaded column 303 drives the pad 305 to move. Two fixing bolts 306 are connected to the internal threads of the pad 305. The fixing bolts 306 fix the pad 305 in a designated position.

[0031] When the height of the pre-embedded bolt 101 needs to be adjusted according to actual usage requirements, the knob 302 is rotated. The knob 302 drives the threaded column 303 to move vertically. The stabilizing block 304 guides the movement of the threaded column 303, making the movement of the threaded column 303 more stable. By rotating the knob 302, the threaded column 303 can be raised and lowered in the movable cavity 301, so that the overall height of the support frame 1 can be changed slightly, thereby enabling the device to adapt to errors that occur during the construction process.

[0032] Working principle:

[0033] When using the connection structure of the support columns for the large-span raft foundation of a residential building to connect the support columns;

[0034] Connection phase:

[0035] By inserting the square insert 203 of the pre-embedded bolt 101 into the square groove 212 of the locking head 201, and then rotating the cap 202 to press the rubber pad 211 against the square insert 203, and then moving the lever 209, the lever 209 drives the slide plate 208 to move, so that the slide plate 208 slides in the limiting through groove 207. Finally, the slide plate 208 can be located in both limiting through grooves 207 at the same time, so that the cap 202 and the square groove 212 can ensure that the pre-embedded bolt 101 is vertical and can be installed quickly. The operation is convenient and saves labor costs. After the positioning pin 204 is installed, the position of the square insert 203 cannot be changed or shaken at will, which increases the stability of the pre-embedded bolt 101 after installation.

[0036] Height adjustment phase:

[0037] When the height of the support frame 1 needs to be adjusted according to actual usage requirements, the knob 302 is rotated. The knob 302 drives the threaded column 303 to move vertically. The stabilizing block 304 guides the movement of the threaded column 303, making the movement of the threaded column 303 more stable. By rotating the knob 302, the threaded column 303 can be raised and lowered in the movable cavity 301, so that the overall height of the support frame 1 can be changed slightly, thereby enabling the device to adapt to errors that occur during the construction process.

[0038] Compared with the original process (components), it can not only ensure the vertical installation of the pre-embedded bolts 101, but also facilitate operation, save labor costs, and improve the stability of the pre-embedded bolts 101 after installation.

[0039] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A connection structure for support columns of a large-span raft foundation for residential buildings, comprising a support frame (1), characterized in that: A connecting assembly (2) is provided above the support frame (1). The connecting assembly (2) includes a locking head (201), a screw cap (202), a square insert (203), a positioning pin (204), a semi-circular ring (205), an outer groove (206), a limiting through groove (207), a sliding plate (208), a toggle rod (209), a semi-circular plate (210), a rubber pad (211), and a square groove (212). The locking head (201) is fixed to the upper surface of the support frame (1). The screw cap (202) is rotatably connected above the locking head (201) via a pin. The inside of both the locking head (201) and the screw cap (202) is provided with a square groove (212).

2. The connection structure for the support column of a large-span raft foundation for residential buildings according to claim 1, characterized in that: The square groove (212) is clearance-fitted with the outer wall of the square insert (203). The screw cap (202) is internally threaded with a positioning pin (204). The end of the positioning pin (204) is in contact with the square insert (203). The surfaces of the locking head (201) and the screw cap (202) are both fixed with a semi-circular ring (205) by bolts. The semi-circular ring (205) is provided with an outer groove (206) and a limiting through groove (207). The outer groove (206) and the limiting through groove (207) are connected.

3. The connection structure of the support column for a large-span raft foundation of a residential building according to claim 1, characterized in that: The limiting through groove (207) is slidably connected to a sliding plate (208). The outer wall of the sliding plate (208) is fixedly connected to a toggle rod (209). The outer wall of the toggle rod (209) is slidably connected to the outer groove (206). The sliding plate (208) is fixedly connected to the outer wall of the semicircular plate (210). The outer wall of the semicircular plate (210) is slidably connected to the semicircular ring (205). The inside of the screw cap (202) is fixedly connected to a rubber pad (211). The rubber pad (211) is in contact with the outer wall of the square insert (203).

4. The connection structure of the support column for a large-span raft foundation of a residential building according to claim 1, characterized in that: The outer wall of the square insert (203) is fixed with a pre-embedded bolt (101).

5. The connection structure of the support column for a large-span raft foundation of a residential building according to claim 1, characterized in that: An adjustment assembly (3) is provided below the support frame (1). The adjustment assembly (3) includes a movable cavity (301), a knob (302), a threaded column (303), a stabilizing block (304), a pad (305), and a fixing bolt (306). The movable cavity (301) is located inside the support frame (1). The stabilizing block (304) is slidably connected inside the movable cavity (301). The stabilizing block (304) is fixed to the upper end of the threaded column (303).

6. The connection structure of the support column for a large-span raft foundation of a residential building according to claim 5, characterized in that: The outer wall of the threaded column (303) is threaded with a knob (302), which is rotatably connected to the support frame (1) via a bearing.

7. The connection structure for the support column of a large-span raft foundation for residential buildings according to claim 5, characterized in that: The lower end of the threaded post (303) is fixedly connected to a pad (305), and the pad (305) has two fixing bolts (306) connected to its internal threads.

Images