Adjustable steel pipe support for foundation pit channel steel support
By designing an adjustable steel pipe support structure, the cutting adjustment problem caused by changes in the width of the foundation pit is solved, and the close integration with the surrounding purlin is achieved, and the stability and safety of foundation pit support are improved.
Patent Information
- Application Number
- CN202422228090.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The existing support structure for channel steel support cannot adapt to changes in the width of the foundation pit and needs to be cut and adjusted. The failure of pre-top force will cause the bonding with the surrounding purlins to be not tightly, which poses safety hazards.
An adjustable steel pipe support structure including a pad plate, a support tube, an adjustment cylinder and a top tube is designed, and length adjustment is achieved through threaded connections and bearing connections, and a top force is applied in the support structure to ensure close integration with the surrounding purlins.
The flexible adaptability of the support structure is achieved, additional cutting operations are avoided, material and time are saved, and the stability and safety of the support system are improved.
Smart Images
Figure CN223048057U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of foundation pit support, in particular to an adjustable steel pipe support for foundation pit channel steel support. Background Art
[0002] The existing supports for channel steel support are generally steel pipes or steel sections with fixed lengths, and the supports with fixed lengths are processed according to the clear distance of the upper purlins of the support structure. When the width of the trench changes, or there is a deviation in the axial direction after the channel steel is inserted into the soil, the steel support cannot be used continuously and needs to be cut again, which is time-consuming, laborious and material-consuming. Moreover, the steel support fails to apply preloading force and is not tightly combined with the purlin, reducing the function of the steel support and posing certain potential safety hazards. Content of the Utility Model
[0003] Aiming at the deficiencies in the prior art, the utility model provides an adjustable steel pipe support for foundation pit channel steel support. To achieve the above purpose, the utility model adopts the following technical solutions:
[0004] An adjustable steel pipe support for foundation pit channel steel support includes two backing plates, a support pipe, an adjusting cylinder and a jacking pipe. The two backing plates are respectively fixedly connected to one ends of the support pipe and the jacking pipe. The end of the support pipe is rotatably connected to the adjusting cylinder. The inner wall of the adjusting cylinder is provided with internal threads, and the outer wall of the jacking pipe is provided with external threads. The jacking pipe is threadedly connected to the adjusting cylinder.
[0005] Furthermore, a bearing is arranged at the end of the support pipe. The support pipe is fixedly connected to the inner ring of the bearing, and the adjusting cylinder is fixedly connected to the outer ring of the bearing.
[0006] Furthermore, a convex ring is fixedly connected to one end of the support pipe, and a groove matching with the convex ring is arranged at the end of the adjusting cylinder.
[0007] Furthermore, a plurality of hand rods are uniformly and fixedly connected to the outer wall of the adjusting cylinder.
[0008] Furthermore, a plurality of limiting ribs arranged along the axial direction of the support pipe are fixedly connected to the inner wall of the support pipe, and limiting grooves corresponding to the limiting ribs are arranged on the outer wall of the jacking pipe.
[0009] Furthermore, a convex platform is fixedly connected to the backing plate. The convex platforms on the two backing plates respectively match with the inner cavities of the support pipe and the jacking pipe, and the backing plates are welded to the support pipe and the jacking pipe.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] By adopting an adjustable steel pipe support structure, it can adapt to the needs of foundation pits of different widths, avoid additional cutting operations due to size mismatch, and save time and material costs; at the same time, the support structure can pre-apply top force to ensure a close fit with the purlin, thereby improving the overall stability and safety of the support system and reducing safety hazards during construction. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0013] Figure 1 This is a schematic diagram of the cross-sectional structure of a bearing used in an embodiment of the utility model;
[0014] Figure 2 This is a schematic diagram of the convex ring matching structure adopted in the embodiment of the utility model.
[0015] In the above drawings: a pad 1, a support tube 2, an adjustment tube 3, a top tube 4, a bearing 5, a convex ring 6, a hand lever 7, a limiting edge 8, and a boss 9. DETAILED DESCRIPTION
[0016] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0017] Please refer to Figure 1 , Figure 2 As shown, an adjustable steel pipe support for foundation pit channel steel support includes two pads 1, a support pipe 2, an adjustment tube 3 and a jacking pipe 4. The two pads 1 are fixedly connected to one end of the support pipe 2 and the jacking pipe 4 respectively. The end of the support pipe 2 is rotatably connected to the adjustment tube 3. The inner wall of the adjustment tube 3 is provided with an internal thread, and the outer wall of the jacking pipe 4 is provided with an external thread. The jacking pipe 4 is threadedly connected to the adjustment tube 3.
[0018] The core principle of this device is to place the steel pipe support horizontally in the foundation pit. The operator holds the pad 1 of the jacking pipe 4 and then rotates the adjusting cylinder 3, so that the adjusting cylinder 3 drives the jacking pipe 4 to extend until the pads 1 at both ends of the support pipe 2 and the jacking pipe 4 are pressed against the inner wall of the foundation pit, and the adjusting cylinder 3 is rotated again to make the support pipe 2 and the jacking pipe 4 pressed tightly in the foundation pit, thereby realizing effective support for foundation pits of different widths.
[0019] In this embodiment, if Figure 1 As shown, a bearing 5 is provided at the end of the support tube 2, the support tube 2 is fixedly connected to the inner ring of the bearing 5, and the adjustment tube 3 is fixedly connected to the outer ring of the bearing 5. The support tube 2 and the top tube 4 are connected by the bearing 5, so that the rotation of the adjustment tube 3 is smoother.
[0020] In this embodiment, please refer to Figure 2As shown, one end of the support pipe 2 is fixedly connected with a convex ring 6, and a groove matching with the convex ring 6 is formed at the end of the adjusting cylinder 3. Through the cooperation of the convex ring 6 and the groove, the connection between the support pipe 2 and the jacking pipe 4 is made more firm, improving the durability.
[0021] In this embodiment, please refer to Figure 1 、 Figure 2 As shown, a plurality of hand rods 7 are uniformly and fixedly connected to the outer wall of the adjusting cylinder 3. Using the hand rods 7 facilitates the rotation of the adjusting cylinder 3.
[0022] In this embodiment, please refer to Figure 1 、 Figure 2 As shown, a plurality of limiting edges 8 arranged along the axial direction of the support pipe 2 are fixedly connected to the inner wall of the support pipe 2, and a limiting groove corresponding to the limiting edges 8 is formed on the outer wall of the jacking pipe 4. The rotation of the jacking pipe 4 is limited by the limiting edges 8. When rotating the adjusting cylinder 3, the elongation or shortening of the jacking pipe 4 can be directly adjusted, making it more convenient to use.
[0023] In this embodiment, please refer to Figure 1 、 Figure 2 As shown, a convex platform 9 is fixedly connected to the backing plate 1, and the convex platforms 9 on the two backing plates 1 respectively cooperate with the inner cavities of the support pipe 2 and the jacking pipe 4. The backing plate 1 is welded to the support pipe 2 and the jacking pipe 4. This makes the connection between the backing plate 1 and the support pipe 2 and the jacking pipe 4 more firm.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.
Claims
1. An adjustable steel pipe support for foundation pit channel steel support, characterized in that: It includes two pads, a support tube, an adjustment tube and a jacking tube. The two pads are fixedly connected to one end of the support tube and the jacking tube respectively. The end of the support tube is rotatably connected to the adjustment tube. The inner wall of the adjustment tube is provided with an internal thread, the outer wall of the jacking tube is provided with an external thread, and the jacking tube is threadedly connected to the adjustment tube.
2. The adjustable steel pipe support for foundation pit channel steel support according to claim 1 is characterized by: A bearing is arranged at the end of the support tube, the support tube is fixedly connected to the inner ring of the bearing, and the adjustment tube is fixedly connected to the outer ring of the bearing.
3. The adjustable steel pipe support for foundation pit channel steel support according to claim 1 is characterized by: One end of the support tube is fixedly connected with a convex ring, and the end of the adjustment cylinder is provided with a groove matched with the convex ring.
4. The adjustable steel pipe support for foundation pit channel steel support according to claim 1 is characterized in that: A plurality of hand rods are evenly and fixedly connected to the outer wall of the adjusting cylinder.
5. The adjustable steel pipe support for foundation pit channel steel support according to claim 1 is characterized in that: A plurality of limiting edges arranged along the axis direction of the support tube are fixedly connected to the inner wall of the support tube, and limiting grooves corresponding to the limiting edges are opened on the outer wall of the top tube.
6. The adjustable steel pipe support for foundation pit channel steel support according to claim 1 is characterized by: The pads are fixedly connected with bosses, the bosses on the two pads are matched with the inner cavities of the support pipe and the jacking pipe respectively, and the pads are welded to the support pipe and the jacking pipe.