A cross-shaped thin-walled steel tube concrete composite pile

Abstract

This utility model relates to the field of foundation engineering technology and discloses a cross-shaped thin-walled steel pipe concrete composite pile, including a central steel pipe. A clamping mechanism is installed in the middle of the outer wall of the central steel pipe. The clamping mechanism is used to lift and adjust the height of the cross steel pipe. Engaging mechanisms are installed at the four corners of the bottom of the outer wall of the clamping mechanism. Multiple engaging mechanisms are used to engage and connect two different cross steel pipes. The clamping mechanism includes a control box, which is installed in the middle of the outer wall of the central steel pipe. A bearing is installed in the middle of the inner wall of the control box, and a support plate is installed on the top of the outer wall of the bearing. In this utility model, rotating the handle drives the slide groove to rotate on the upper part of the bearing, driving the rotating shaft to slide inside the slide groove. A slider is fixed at the top of the rotating shaft, and the slider slides inside the support plate. Rotating the handle drives the connecting column to move.

Description

Technical Field

[0001] This utility model relates to the field of foundation engineering technology, and in particular to a cross-shaped thin-walled steel pipe concrete composite pile. Background Technology

[0002] Steel-concrete composite piles are composed of steel pipes and concrete. The two work together to bear the load. The steel pipes restrain the internal concrete, improving its compressive strength and ductility, while the concrete prevents local buckling of the steel pipes and enhances the pile's stiffness and bearing capacity. The design of this type of pile structure needs to consider the cross-sectional shape and stress distribution. The construction process includes steel pipe processing, pile positioning, steel pipe placement, and concrete pouring. Its advantage lies in combining the tensile and shear properties of steel with the compressive properties of concrete, resulting in high overall mechanical performance. At the same time, attention must be paid to the quality of steel pipe connections and the compactness of concrete pouring during construction to ensure the efficiency of their coordinated work and avoid affecting the overall load-bearing performance due to local defects.

[0003] The structural components of a cross-shaped thin-walled steel tube concrete composite pile mainly include thin-walled steel tubes, connecting members, and filling concrete. The thin-walled steel tubes are distributed in a cross shape, forming the skeleton structure of the pile. The connecting members are used to fix the relative positions of the intersecting steel tubes to ensure the stability of the cross-sectional shape. The filling concrete is poured into the inside of the steel tubes and the intersecting gaps, forming an integral load-bearing structure together with the steel tubes. Some designs include reinforcing ribs to enhance the integrity of the steel tube connection parts and improve the structural stiffness. The components are combined by mechanical interlocking or fixing to form a composite structure that works together to bear loads. However, existing cross-shaped thin-walled steel tube concrete composite piles lack the ability to flexibly adjust the position of the cross steel tubes outside the central steel tube, making it difficult to adapt to different load requirements, unable to avoid local stress concentration, and not conducive to optimizing the stress distribution of the cross section. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a cross-shaped thin-walled steel tube concrete composite pile, which aims to improve the existing technology of cross-shaped thin-walled steel tube concrete composite piles that lack the ability to flexibly adjust the position of the cross steel tube outside the central steel tube, are not easy to adapt to different stress requirements, cannot avoid local stress concentration, and are not conducive to optimizing the stress distribution of the cross section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cross-shaped thin-walled steel pipe concrete composite pile, comprising a central steel pipe, a clamping mechanism installed in the middle of the outer wall of the central steel pipe, the clamping mechanism being used to lift and adjust the height of the cross steel pipe, and engaging mechanisms installed at the four corners of the bottom of the outer wall of the clamping mechanism, the multiple engaging mechanisms being used to engage and connect two different cross steel pipes, the clamping mechanism including a control box, the control box being installed in the middle of the outer wall of the central steel pipe, a bearing being installed in the middle of the inner wall of the control box, a support plate being installed on the top of the outer wall of the bearing, and a drive assembly being installed on the top of the outer wall of the support plate.

[0006] As a further description of the above technical solution:

[0007] The drive assembly includes a rotary handle, which is mounted on the top of the outer wall of the bearing. A slide groove is fixedly connected to the rear side of the outer wall of the rotary handle. Multiple rotary shafts are slidably connected to the middle of the inner wall of the slide groove. A slider is fixedly connected to the top of the outer wall of the multiple rotary shafts. A connecting post is fixedly connected to the top of the outer wall of the slider. A clamp is fixedly connected to an adjacent side of the outer wall of the multiple connecting posts.

[0008] As a further description of the above technical solution:

[0009] The engaging mechanism includes a second support plate, which is fixedly connected to the top of the outer wall of the first cross steel pipe. A third support plate is installed on the left side of the outer wall of the second support plate. A fixing block is fixedly connected to the top of the outer wall of the second support plate. A rotary wrench is installed on the top of the outer wall of the second support plate. A connecting frame is fixedly connected to the bottom of the outer wall of the rotary wrench. A first connecting strip is rotatably connected to both the front and rear sides of the outer wall of the fixing block. A connecting frame is rotatably connected to the left side of the outer wall of the first connecting strip. A second rotating shaft is rotatably connected to the left side of the outer wall of the connecting frame. A telescopic component is installed in the middle of the outer wall of the second rotating shaft.

[0010] As a further description of the above technical solution:

[0011] The telescopic assembly includes a second connecting column, which is rotatably connected to the middle of the outer wall of the second rotating shaft. A first buckle is fixedly connected to the left side of the outer wall of the second connecting column. A second buckle is installed on the top of the outer wall of the first buckle. A third connecting column is fixedly connected to the top of the outer wall of the second buckle. A spring is installed in the middle of the outer wall of the third connecting column. A buckle box is installed in the middle of the outer wall of the spring.

[0012] As a further description of the above technical solution:

[0013] The control box has a cross-shaped steel pipe installed around the bottom of its outer wall, and multiple cross-shaped steel pipes are installed on opposite sides of their outer walls.

[0014] As a further description of the above technical solution:

[0015] Two connecting strips are installed on the outer side of the cross-shaped steel pipe, and screws are threadedly connected to the outer walls of the two connecting strips.

[0016] As a further description of the above technical solution:

[0017] The outer walls of the multiple connecting columns are rotatably connected to screws on opposite sides.

[0018] As a further description of the above technical solution:

[0019] A flange is fixedly connected to the top of the outer wall of the central steel pipe, and a sealing ring is fixedly connected to the middle of the inner wall of the flange.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the rotating handle drives the slide groove to rotate on the upper part of the bearing, drives the rotating shaft to slide inside the slide groove, the top of the rotating shaft is fixed with a slider, the slider slides inside the support plate, the rotating handle drives the connecting column to move, and drives the clamping plate to perform clamping operation. The height of the cross steel tube can be adjusted by raising and lowering the clamping, and the position of the cross steel tube outside the central tube can be flexibly adjusted to adapt to different stress requirements, avoid local stress concentration, and optimize the stress distribution of the cross section.

[0022] 2. In this utility model, the connecting frame is rotated together by rotating the wrench. The front side of the connecting frame is rotatably connected to the connecting post two through the rotating shaft two, and the rear side is rotatably connected to the outside of the fixing block through the connecting strip one. Rotating the wrench drives the connecting post two to slide to the left in the fixing block. The connecting post two drives the buckle one to slide in the buckle box. After reaching a certain area, it engages with the buckle two to achieve the engagement state. When it is necessary to release the engagement state, the connecting post three is moved upward to release the engagement state. The spring returns the connecting post three to its original position. It can be used to engage and connect two different cross steel pipes. Attached Figure Description

[0023] Figure 1 This is a perspective view of a cross-shaped thin-walled steel-concrete composite pile proposed in this utility model;

[0024] Figure 2 This is a front view of a cross-shaped thin-walled steel tube concrete composite pile proposed in this utility model;

[0025] Figure 3 This is a top view of a cross-shaped thin-walled steel tube concrete composite pile proposed in this utility model;

[0026] Figure 4This is a partial structural breakdown diagram of a cross-shaped thin-walled steel tube concrete composite pile proposed in this utility model;

[0027] Figure 5 This is a partial structural illustration of a cross-shaped thin-walled steel-concrete composite pile proposed in this utility model.

[0028] Legend:

[0029] 1. Central steel pipe; 2. Clamping mechanism; 201. Control box; 202. Bearing; 203. Support plate one; 204. Drive assembly; 2041. Rotary handle; 2042. Slide groove; 2043. Rotary shaft one; 2044. Slider; 2045. Connecting column one; 2046. Clamping plate; 3. Engaging mechanism; 301. Support plate two; 302. Support plate three; 303. Fixing block; 304. Rotation 305. Wrench; 306. Connecting frame; 307. Connecting strip one; 308. Rotating shaft two; 309. Telescopic assembly; 3001. Connecting post two; 3002. Clip one; 3003. Clip two; 3004. Connecting post three; 3005. Spring; 3006. Clip box; 4. Cross steel pipe one; 5. Cross steel pipe two; 6. Connecting strip two; 7. Screw one; 8. Screw two; 9. Flange; 10. Sealing ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a cross-shaped thin-walled steel pipe concrete composite pile, comprising a central steel pipe 1, a clamping mechanism 2 installed in the middle of the outer wall of the central steel pipe 1, the clamping mechanism 2 being used to lift and adjust the height of the cross steel pipe, and engaging mechanisms 3 installed at the four corners of the bottom of the outer wall of the clamping mechanism 2, multiple engaging mechanisms 3 being used to engage and connect two different cross steel pipes, the clamping mechanism 2 including a control box 201, the control box 201 being installed in the middle of the outer wall of the central steel pipe 1, a bearing 202 installed in the middle of the inner wall of the control box 201, and a support plate installed on the top of the outer wall of the bearing 202. A drive assembly 204 is installed on the top of the outer wall of the support plate 203. The drive assembly 204 includes a rotating handle 2041, which is installed on the top of the outer wall of the bearing 202. A slide groove 2042 is fixedly connected to the rear side of the outer wall of the rotating handle 2041. Multiple rotating shafts 2043 are slidably connected to the middle of the inner wall of the slide groove 2042. A slider 2044 is fixedly connected to the top of the outer wall of the multiple rotating shafts 2043. A connecting post 2045 is fixedly connected to the top of the outer wall of the slider 2044. A clamping plate 2046 is fixedly connected to the adjacent side of the outer wall of the multiple connecting posts 2045.

[0032] Specifically, by rotating the rotary handle 2041 installed in the control box 201, the slide groove 2042 can be driven to rotate on the upper part of the bearing 202, thereby driving multiple rotary shafts 2043 to slide inside the slide groove 2042. A slider 2044 is fixed on the top of the rotary shaft 2043, and the slider 2044 slides in the support plate 203. When the rotary handle 2041 is rotated, the connecting column 2045 on the slider 2044 can be moved, thereby driving multiple clamping plates 2046 to perform clamping operations. This can be used to lift and clamp the height of the cross steel tube, and has the ability to flexibly adjust the position of the cross steel tube outside the central tube, which is convenient to adapt to different stress requirements, avoid local stress concentration, and optimize the stress distribution of the cross section.

[0033] Reference Figure 1 , Figure 2 and Figure 5The engaging mechanism 3 includes a second support plate 301, which is fixedly connected to the top of the outer wall of the cross steel pipe 4. A third support plate 302 is installed on the left side of the outer wall of the second support plate 301. A fixing block 303 is fixedly connected to the top of the outer wall of the second support plate 301. A rotary wrench 304 is installed on the top of the outer wall of the second support plate 301. A connecting frame 305 is fixedly connected to the bottom of the outer wall of the rotary wrench 304. Connecting strips 306 are rotatably connected to the front and rear sides of the outer wall of the fixing block 303. The connecting frame 305 is rotatably connected to the left side of the outer wall of the connecting strip 306. The connecting frame 305 is rotatably connected to the left side of the outer wall of the connecting frame 305. A rotating shaft 307 is connected to the outer wall of the rotating shaft 307. A telescopic component 308 is installed in the middle of the outer wall of the rotating shaft 307. The telescopic component 308 includes a connecting post 3081. The connecting post 3081 is rotatably connected to the middle of the outer wall of the rotating shaft 307. A buckle 3082 is fixedly connected to the left side of the outer wall of the connecting post 3081. A buckle 3083 is installed on the top of the outer wall of the buckle 3082. A connecting post 3084 is fixedly connected to the top of the outer wall of the buckle 3083. A spring 3085 is installed in the middle of the outer wall of the connecting post 3084. A buckle box 3086 is installed in the middle of the outer wall of the spring 3085.

[0034] Specifically, rotating the rotary wrench 304 causes the connecting frame 305 installed at its bottom to rotate as well. Since the front side of the connecting frame 305 is rotatably connected to the connecting post 3081 via the second rotating shaft 307, and the rear side of the connecting frame 305 is rotatably connected to the outside of the fixing block 303 via the first connecting strip 306, rotating the rotary wrench 304 can drive the second connecting post 3081 to slide to the left within the fixing block 303. When the second connecting post 3081 drives the first buckle 3082 to slide within the buckle box 3086, it will engage with the second buckle 3083 after reaching a certain area, achieving an engaged state. When it is necessary to release the engaged state, the third connecting post 3084 can be moved upward to release the engaged state. The spring 3085 is used to restore the third connecting post 3084 to its original position after the engaged state is completed. This structure can be used to engage and connect two different cross steel pipes.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The control box 201 has a cross steel pipe 4 installed around the bottom of its outer wall. The outer walls of the multiple cross steel pipes 4 are connected to a cross steel pipe 5 on the side away from each other. Two connecting strips 6 are installed on the outside of the cross steel pipes 4. The outer walls of the two connecting strips 6 are threaded with screws 7. The outer walls of the multiple connecting columns 2045 are rotatably connected with screws 8 on the side away from each other. The top of the outer wall of the central steel pipe 1 is fixedly connected to a flange 9. The middle of the inner wall of the flange 9 is fixedly connected to a sealing ring 10.

[0036] Specifically, cross steel pipe 4 is connected to the four corners of the central steel pipe 1 to form a cross-shaped structure. Connecting strip 6 is installed on both sides of cross steel pipe 4 and cross steel pipe 5 by screw 8 to connect the two. Screw 8 is used to assist the clamping effect of clamping plate 2046. When adjusted to the required height, the height of the cross steel pipe can be fixed by screw 8. Flange 9 is used to connect other equipment. Sealing ring 10 is used to seal when pouring concrete.

[0037] Working principle: By rotating the rotary handle 2041 installed in the control box 201, the slide groove 2042 can be driven to rotate on the upper part of the bearing 202, which in turn drives multiple rotating shafts 2043 to slide inside the slide groove 2042. The top of the rotating shaft 2043 is fixed with a slider 2044, which slides in the support plate 203. When the rotary handle 2041 is rotated, the connecting column 2045 on the slider 2044 can be moved, which in turn drives multiple clamping plates 2046 to perform clamping operations. It can be used to lift and clamp the height of the cross steel tube, and has the ability to flexibly adjust the position of the cross steel tube outside the central tube, which is convenient to adapt to different stress requirements, avoid local stress concentration, and optimize the stress distribution of the cross section.

[0038] Rotating the rotary wrench 304 causes the connecting frame 305 installed at its bottom to rotate as well. Since the front side of the connecting frame 305 is rotatably connected to the connecting post 3081 via the second rotating shaft 307, and the rear side of the connecting frame 305 is rotatably connected to the outside of the fixing block 303 via the first connecting strip 306, rotating the rotary wrench 304 can drive the second connecting post 3081 to slide to the left within the fixing block 303. When the second connecting post 3081 drives the first buckle 3082 to slide within the buckle box 3086, it will engage with the second buckle 3083 after reaching a certain area, achieving the engaged state. When it is necessary to release the engaged state, the third connecting post 3084 can be moved upward to release the engaged state. The spring 3085 returns the third connecting post 3084 to its original position after the engaged state is released, and can be used to engage and connect two different cross steel pipes.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cross-shaped thin-walled steel-concrete composite pile, comprising a central steel pipe (1), characterized in that: A clamping mechanism (2) is installed in the middle of the outer wall of the central steel pipe (1). The clamping mechanism (2) is used to clamp and adjust the height of the cross steel pipe. A locking mechanism (3) is installed at the four corners of the bottom of the outer wall of the clamping mechanism (2). Multiple locking mechanisms (3) are used to lock and connect two different cross steel pipes. The clamping mechanism (2) includes a control box (201), which is installed in the middle of the outer wall of the central steel pipe (1). A bearing (202) is installed in the middle of the inner wall of the control box (201). A support plate (203) is installed on the top of the outer wall of the bearing (202). A drive assembly (204) is installed on the top of the outer wall of the support plate (203).

2. The cross-shaped thin-walled steel-concrete composite pile according to claim 1, characterized in that: The drive assembly (204) includes a rotary handle (2041), which is mounted on the top of the outer wall of the bearing (202). A slide groove (2042) is fixedly connected to the rear side of the outer wall of the rotary handle (2041). A plurality of rotary shafts (2043) are slidably connected to the middle of the inner wall of the slide groove (2042). A slider (2044) is fixedly connected to the top of the outer wall of the plurality of rotary shafts (2043). A connecting post (2045) is fixedly connected to the top of the outer wall of the slider (2044). A clamp (2046) is fixedly connected to the adjacent side of the outer wall of the plurality of connecting posts (2045).

3. The cross-shaped thin-walled steel-concrete composite pile according to claim 1, characterized in that: The locking mechanism (3) includes a second support plate (301), which is fixedly connected to the top of the outer wall of the first cross steel pipe (4). A third support plate (302) is installed on the left side of the outer wall of the second support plate (301). A fixed block (303) is fixedly connected to the top of the outer wall of the second support plate (301). A rotary wrench (304) is installed on the top of the outer wall of the second support plate (301). A connecting frame (305) is fixedly connected to the bottom of the outer wall of the rotary wrench (304). A connecting strip (306) is rotatably connected to the front and rear sides of the outer wall of the fixed block (303). A connecting frame (305) is rotatably connected to the left side of the outer wall of the first connecting strip (306). A second rotating shaft (307) is rotatably connected to the left side of the outer wall of the connecting frame (305). A telescopic component (308) is installed in the middle of the outer wall of the second rotating shaft (307).

4. A cross-shaped thin-walled steel-concrete composite pile according to claim 3, characterized in that: The telescopic assembly (308) includes a second connecting post (3081), which is rotatably connected to the middle of the outer wall of the second rotating shaft (307). A first buckle (3082) is fixedly connected to the left side of the outer wall of the second connecting post (3081). A second buckle (3083) is installed on the top of the outer wall of the first buckle (3082). A third connecting post (3084) is fixedly connected to the top of the outer wall of the second buckle (3083). A spring (3085) is installed in the middle of the outer wall of the third connecting post (3084). A buckle box (3086) is installed in the middle of the outer wall of the spring (3085).

5. A cross-shaped thin-walled steel-concrete composite pile according to claim 1, characterized in that: The control box (201) has a cross steel pipe 1 (4) installed around the bottom of its outer wall, and a cross steel pipe 2 (5) is installed on the outer wall of the multiple cross steel pipes 1 (4) on the side away from each other.

6. A cross-shaped thin-walled steel-concrete composite pile according to claim 5, characterized in that: Two connecting strips (6) are installed on the outside of the cross steel pipe (4), and screws (7) are threadedly connected to the outer walls of the two connecting strips (6).

7. A cross-shaped thin-walled steel-concrete composite pile according to claim 2, characterized in that: The outer walls of the plurality of connecting posts 1 (2045) are rotatably connected to screws 2 (8) on the side away from each other.

8. A cross-shaped thin-walled steel-concrete composite pile according to claim 1, characterized in that: A flange (9) is fixedly connected to the top of the outer wall of the central steel pipe (1), and a sealing ring (10) is fixedly connected to the middle of the inner wall of the flange (9).

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