Different-section lap joint type concrete filled steel tube combined support
By designing a concrete composite bracket of overlapping steel pipes with different sections including movable semi-rings, hinges and other structures, the problem of unsolid fixation between the extension rods and pillars in traditional brackets is solved, and the overall stability and adaptability of the brackets are improved.
Patent Information
- Application Number
- CN202421666038.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-15
AI Technical Summary
In the traditional overlapping steel pipe concrete composite bracket, the extension rod and the pillar are not fixed firmly enough, which affects the overall stability of the bracket and increases the engineering risks.
A concrete composite bracket of overlapping steel pipes with different sections was designed, and the precise and stable connection between the extension rod and the support column was achieved through structures such as movable half rings, hinges, fixed half rings, positioning sleeves, bearings, screws, trapezoidal push blocks, triangular clamps and pullback components.
It effectively solves the problem of insufficient fixation between the extension rod and the pillar, ensures the overall structural stability of the bracket, reduces the potential safety risks caused by insecure connections, and improves the adaptability of the bracket.
Smart Images
Figure CN222908560U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of combined supports, in particular to a concrete-filled steel tube combined support with lap joints of different cross-sections. Background Technique
[0002] The lap-jointed concrete-filled steel tube support is a temporary support structure commonly used in projects such as bridges and elevated roads. It is mainly composed of multiple sections of steel tubes and concrete, and has high bearing capacity and stability. During the construction process, the cross-sectional shape and size of the support need to be designed according to the stress conditions and project requirements. At the same time, the moments and loads borne by supports with different cross-sections are different. The combined support can adjust the diameter, length and arrangement of the steel tubes according to the specific stress conditions to meet the requirements of bearing capacity and stability.
[0003] The traditional lap-jointed concrete-filled steel tube combined support is widely used in projects such as bridges and elevated roads during construction. Its usage has the following characteristics: First, according to the different cross-sectional requirements of the project, the cross-sectional shape and size of the combined concrete-filled steel tube support are combined by lapping and splicing to adapt to different stress conditions. Second, by adjusting the diameter, length and arrangement of the steel tubes, the support structure is optimized to improve its bearing capacity and stability. In addition, the lap-jointed concrete-filled steel tube support has high construction flexibility and can be reasonably designed and adjusted according to the construction environment and economic conditions to reduce the construction cost.
[0004] In the traditional lap-jointed concrete-filled steel tube combined support, due to the complexity and irregularity of the lap-jointed structure, the positions and directions of the extended rods in space are different, making it difficult to accurately align and fix them with the columns, resulting in insufficient firm fixation of the extended rods and columns, and the overall stability of the support will be affected, increasing the engineering risk. Content of the Utility Model
[0005] In order to make up for the above deficiencies, the utility model provides a concrete-filled steel tube combined support with lap joints of different cross-sections, aiming to improve the problem that in the traditional lap-jointed concrete-filled steel tube combined support, the fixation of the extended rod and the column is not firm enough, the overall stability of the support will be affected, and the engineering risk is increased.
[0006] To achieve the above object, the present utility model provides the following technical solution: A concrete-filled steel tubular composite support with lap joints of different cross-sections, including a pillar, an extension rod is arranged on one side of the pillar, a movable semi-ring is sleeved on the outer wall of the pillar, a hinge is fixedly connected to the outer wall of the movable semi-ring, a fixed semi-ring one is fixedly connected to the outer wall of the hinge, a positioning sleeve is fixedly connected to the inside of the fixed semi-ring one, a bearing one is fixedly connected to the inside of the positioning sleeve, a screw rod is fixedly connected to the inside of the bearing one, a handle is fixedly connected to one end of the screw rod, the outer wall of the screw rod is rotatably connected to the inside of the positioning sleeve, a trapezoidal push block is threadedly connected to the outer wall of the screw rod, the outer wall of the trapezoidal push block is slidably connected to the inside of the positioning sleeve, a triangular clamping block is slidably connected to the inside of the positioning sleeve, the outer wall of the triangular clamping block is slidably connected to the inside of the movable semi-ring, and a pulling-back assembly is arranged inside the triangular clamping block, and the pulling-back assembly is used to pull the triangular clamping block back into the positioning sleeve.
[0007] Further, the pulling-back assembly includes a second telescopic rod, both ends of the second telescopic rod are fixedly connected to the inside of the triangular clamping block, and a second spring is sleeved on the outer wall of the second telescopic rod, and both ends of the second spring are fixedly connected to the inside of the triangular clamping block.
[0008] Further, a limiting ring is slidably connected to the inside of the movable semi-ring, a fixed semi-ring two is fixedly connected to the outer wall of the limiting ring, and the fixed semi-ring two is sleeved on the outer wall of the extension rod.
[0009] Further, a chute is opened in the inside of the movable semi-ring, and the outer wall of the limiting ring is slidably connected to the inside of the chute.
[0010] Further, a rotating rod is rotatably connected to the inside of the movable semi-ring, a bearing two is fixedly connected to the outer wall of the rotating rod, and the fixed semi-ring two is arranged on one side of the movable semi-ring.
[0011] Further, the outer wall of the bearing two is fixedly connected to the inside of the movable semi-ring, and a worm is fixedly connected to the outer wall of the rotating rod.
[0012] Further, a worm gear is rotatably connected to the inside of the movable semi-ring, and the worm gear meshes with the worm.
[0013] Further, a connecting block is fixedly connected to the outer wall of the worm gear, and the outer wall of the connecting block is fixedly connected to the outer wall of the fixed semi-ring two.
[0014] The present utility model has the following beneficial effects:
[0015] 1. In the present utility model, first, the movable half-ring is pulled to cooperate with the hinge and the fixed half-ring 1 to wrap the support column. Then, the driving handle cooperates with the positioning sleeve, bearing 1, screw rod, trapezoidal push block, triangular clamping block, and telescopic rod 2 to connect and fix the movable half-ring and the fixed half-ring 1, thereby realizing the fixation of the support column. Similarly, the extension rod is fixed by the fixed half-ring 2 on one side, solving the problem that the connection between the extension rod and the support column is not firm enough, which will affect the overall stability of the bracket and increase the engineering risk. It achieves precise and stable connection and fixation between the extension rod and the support column, ensuring the overall structural stability of the bracket and reducing potential safety risks caused by insecure connection.
[0016] 2. In the present utility model, first, the driving rod is driven to cooperate with bearing 2 to drive the worm to rotate. Then, it cooperates with the worm gear, connecting block, limiting ring, and sliding groove to rotate the fixed half-ring 2, thereby adapting to the angle of the extension rod, achieving angle adjustment according to the extending direction of the extension rod, better adapting to the geometric shapes and force requirements of different cross-sections, and enabling the bracket to adapt to a wider range of engineering needs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional structural schematic diagram of a steel pipe concrete composite bracket with different cross-section lap joints proposed by the present utility model;
[0018] Figure 2 It is a schematic diagram of the hinge structure of a steel pipe concrete composite bracket with different cross-section lap joints proposed by the present utility model;
[0019] Figure 3 It is a schematic diagram of the structure of the fixed half-ring 1 of a steel pipe concrete composite bracket with different cross-section lap joints proposed by the present utility model;
[0020] Figure 4 It is a schematic diagram of one side of the handle of a steel pipe concrete composite bracket with different cross-section lap joints proposed by the present utility model;
[0021] Figure 5 It is a schematic diagram of the internal structure of the movable half-ring of a steel pipe concrete composite bracket with different cross-section lap joints proposed by the present utility model;
[0022] Figure 6 It is a schematic diagram of one side of the fixed half-ring 2 of a steel pipe concrete composite bracket with different cross-section lap joints proposed by the present utility model.
[0023] LEGEND DESCRIPTION:
[0024] 1. Support pillar; 2. Extension rod; 3. Movable semi-ring; 4. Fixed semi-ring I; 5. Hinge; 6. Handle; 7. Positioning sleeve; 8. Bearing I; 9. Screw; 10. Trapezoidal push block; 11. Triangular clamping block; 12. Telescopic rod II; 13. Spring II; 14. Rotating rod; 15. Bearing II; 16. Worm; 17. Worm gear; 18. Connecting block; 19. Limit ring; 20. Chute; 21. Fixed semi-ring II. Detailed implementation
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] Refer to Figure 1 - Figure 4 , an embodiment provided by the present invention: a steel pipe concrete composite support with different cross-section lap joints, including a support pillar 1, an extension rod 2 is arranged on one side of the support pillar 1, a movable semi-ring 3 is sleeved on the outer wall of the support pillar 1, a hinge 5 is fixedly connected to the outer wall of the movable semi-ring 3, a fixed semi-ring I 4 is fixedly connected to the outer wall of the hinge 5, a positioning sleeve 7 is fixedly connected to the inside of the fixed semi-ring I 4, a bearing I 8 is fixedly connected to the inside of the positioning sleeve 7, a screw 9 is fixedly connected to the inside of the bearing I 8, a handle 6 is fixedly connected to one end of the screw 9, the outer wall of the screw 9 is rotatably connected to the inside of the positioning sleeve 7, a trapezoidal push block 10 is threadedly connected to the outer wall of the screw 9, the outer wall of the trapezoidal push block 10 is slidably connected to the inside of the positioning sleeve 7, a triangular clamping block 11 is slidably connected to the inside of the positioning sleeve 7, the outer wall of the triangular clamping block 11 is slidably connected to the inside of the movable semi-ring 3, a pulling-back assembly is arranged inside the triangular clamping block 11, and the pulling-back assembly is used to pull the triangular clamping block 11 back into the positioning sleeve 7. The pulling-back assembly includes a telescopic rod II 12, both ends of the telescopic rod II 12 are fixedly connected to the inside of the triangular clamping block 11, a spring II 13 is sleeved on the outer wall of the telescopic rod II 12, and both ends of the spring II 13 are fixedly connected to the inside of the triangular clamping block 11;
[0027] Specifically, first place the support column 1 on one side of the extension rod 2 protruding from different cross-sections. Then place the fixed half-ring 4 on the outer wall of the support column 1, and place the fixed half-ring 21 on the outer wall of the extension rod 2. Then pull the movable half-ring 3 and cooperate with the hinge 5 to make the movable half-ring 3 rotate around the hinge 5 as the center, so that one end of the movable half-ring 3 fits with one end of the fixed half-ring 4. Furthermore, one end of the positioning sleeve 7 inside the fixed half-ring 4 moves into the movable half-ring 3. Then drive the handle 6 and cooperate with the bearing 8 to drive the screw rod 9 to rotate inside the positioning sleeve 7. Due to the threaded relationship between the screw rod 9 and the trapezoidal push block 10, the trapezoidal push block 10 slides inside the positioning sleeve 7 as the screw rod 9 rotates. Thus, the two triangular locking blocks 11 are pushed to slide inside the positioning sleeve 7 and the movable half-ring 3 through the inclined surfaces on both sides of the trapezoidal push block 10, realizing the connection between the movable half-ring 3 and the fixed half-ring 4. At the same time, the spring two 13 is stretched. When the triangular locking block 11 moves into the movable half-ring 3, due to the setting of the inclined surface of the triangular locking block 11, the distance between the movable half-ring 3 and the fixed half-ring 4 gradually decreases, and finally a completely fitting connection is achieved. When disassembling, only need to rotate the screw rod 9 in the reverse direction. At this time, the spring two 13 is no longer stressed and rebounds, thus pulling the triangular locking block 11 back into the positioning sleeve 7, realizing the installation and disassembly of the movable half-ring 3 and the fixed half-ring 4.
[0028] Refer to Figure 1 、 Figure 5 and Figure 6 As shown in, a limiting ring 19 is slidably connected inside the movable half-ring 3. The outer wall of the limiting ring 19 is fixedly connected with a fixed half-ring 21. The fixed half-ring 21 is sleeved on the outer wall of the extension rod 2. A sliding groove 20 is provided inside the movable half-ring 3. The outer wall of the limiting ring 19 is slidably connected inside the sliding groove 20. A rotating rod 14 is rotatably connected inside the movable half-ring 3. A bearing two 15 is fixedly connected to the outer wall of the rotating rod 14. The fixed half-ring 21 is arranged on one side of the movable half-ring 3. The outer wall of the bearing two 15 is fixedly connected inside the movable half-ring 3. A worm 16 is fixedly connected to the outer wall of the rotating rod 14. A worm gear 17 is rotatably connected inside the movable half-ring 3. The worm gear 17 meshes with the worm 16. A connecting block 18 is fixedly connected to the outer wall of the worm gear 17. The outer wall of the connecting block 18 is fixedly connected to the outer wall of the fixed half-ring 21;
[0029] Specifically, the driving rotating rod 14 rotates inside the movable half-ring 3. During this process, the friction can be reduced through the second bearing 15. Then, the rotation of the rotating rod 14 drives the worm 16 to rotate. Due to the meshing of the worm 16 and the worm wheel 17, the worm wheel 17 drives the connecting block 18 to rotate along with the rotation of the worm 16. Furthermore, the fixed half-ring two 21 is driven to rotate through the connecting block 18, so that the fixed half-ring two 21 can be rotationally adjusted according to the angle of the extension rod 2. While the fixed half-ring two 21 rotates, it drives the limiting ring 19 to slide inside the preset sliding groove 20 inside the movable half-ring 3, realizing stable rotation and achieving the matching effect.
[0030] Working principle: When it is necessary to use a different cross-section lap-jointed concrete-filled steel tubular composite support, first place the pillar 1 on one side of the extension rod 2 and fix the fixed half-ring one 4 on the outer wall of the pillar 1. Then, sleeved the fixed half-ring two 21 on the extension rod 2, and through the rotation of the movable half-ring 3 and the hinge 5, the movable half-ring 3 is closely attached to the fixed half-ring one 4. At this time, one end of the positioning sleeve 7 moves inside the movable half-ring 3. Next, rotate the handle 6 to drive the screw rod 9 to rotate inside the positioning sleeve 7. Due to the threaded connection between the screw rod 9 and the trapezoidal push block 10, the trapezoidal push block 10 slides inside the positioning sleeve 7 and pushes the two triangular clamping blocks 11 to slide inside the positioning sleeve 7 and the movable half-ring 3 through the inclined surfaces on both sides, realizing the connection between the movable half-ring 3 and the fixed half-ring one 4. The second spring 13 stretches when the triangular clamping block 11 moves. With the inclined surface action of the triangular clamping block 11, the distance between the movable half-ring 3 and the fixed half-ring one 4 gradually decreases until they are completely attached. When disassembling, reverse-rotate the screw rod 9, and the second spring 13 rebounds, pulling the triangular clamping block 11 back into the positioning sleeve 7 to complete the installation and disassembly of the movable half-ring 3 and the fixed half-ring one 4;
[0031] In addition, the rotating rod 14 rotates inside the movable half-ring 3, and the friction is reduced through the second bearing 15. The meshing of the worm 16 and the worm wheel 17 enables the connecting block 18 to rotate along with the worm 16, and then drives the fixed half-ring two 21 to rotate to adapt to the angle of the extension rod 2. At the same time, the limiting ring 19 slides inside the sliding groove 20 inside the movable half-ring 3 to ensure stable rotation and achieve the matching effect.
[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A composite support of steel tube concrete with different cross-sections, comprising a support column (1), characterized in that: An extension rod (2) is provided on one side of the pillar (1); a movable half ring (3) is sleeved on the outer wall of the pillar (1); a hinge (5) is fixedly connected to the outer wall of the movable half ring (3); a fixed half ring (4) is fixedly connected to the outer wall of the hinge (5); a positioning sleeve (7) is fixedly connected to the interior of the fixed half ring (4); a bearing (8) is fixedly connected to the interior of the positioning sleeve (7); a screw (9) is fixedly connected to the interior of the bearing (8); a handle (6) is fixedly connected to one end of the screw (9); The outer wall of the screw rod (9) is rotatably connected to the interior of the positioning sleeve (7); the outer wall of the screw rod (9) is threadedly connected to a trapezoidal push block (10); the outer wall of the trapezoidal push block (10) is slidably connected to the interior of the positioning sleeve (7); the interior of the positioning sleeve (7) is slidably connected to a triangular clamping block (11); the outer wall of the triangular clamping block (11) is slidably connected to the interior of the movable semi-ring (3); a pull-back assembly is arranged inside the triangular clamping block (11); the pull-back assembly is used to pull the triangular clamping block (11) back to the interior of the positioning sleeve (7).
2. The different-section overlapped steel tube concrete composite bracket according to claim 1, characterized in that: The pull-back assembly comprises a second telescopic rod (12), both ends of which are fixedly connected to the inside of the triangular clamping block (11); a second spring (13) is sleeved on the outer wall of the second telescopic rod (12), and both ends of the second spring (13) are fixedly connected to the inside of the triangular clamping block (11).
3. The different-section overlapped steel tube concrete composite bracket according to claim 1, characterized in that: The movable half ring (3) is internally slidably connected to a limit ring (19), the outer wall of the limit ring (19) is fixedly connected to a second fixed half ring (21), and the second fixed half ring (21) is sleeved on the outer wall of the extension rod (2).
4. The different-section overlapped steel tube concrete composite bracket according to claim 3, characterized in that: A sliding groove (20) is provided inside the movable half ring (3), and the outer wall of the limiting ring (19) is slidably connected to the inside of the sliding groove (20).
5. The different-section overlapped steel tube concrete composite bracket according to claim 4, characterized in that: The movable half ring (3) is rotatably connected to a rotating rod (14) inside, the outer wall of the rotating rod (14) is fixedly connected to a second bearing (15), and the second fixed half ring (21) is arranged on one side of the movable half ring (3).
6. The different-section overlapped steel tube concrete composite bracket according to claim 5, characterized in that: The outer wall of the second bearing (15) is fixedly connected to the inside of the movable half ring (3), and the outer wall of the rotating rod (14) is fixedly connected to a worm (16).
7. The different-section overlapped steel tube concrete composite bracket according to claim 6, characterized in that: The movable half ring (3) is internally rotatably connected with a worm wheel (17), and the worm wheel (17) is meshed with the worm (16).
8. The different-section overlapped steel tube concrete composite bracket according to claim 7, characterized in that: The outer wall of the worm wheel (17) is fixedly connected to a connecting block (18), and the outer wall of the connecting block (18) is fixedly connected to the outer wall of the second fixed half ring (21).