Concrete conduit
By employing a socket-type connection and wire rope locking structure on the concrete guide pipe, the problem of difficult pipe connection was solved, enabling efficient installation and disassembly processes and ensuring the quality of the cast-in-place piles.
Patent Information
- Application Number
- CN202520551234.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-17
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Existing concrete guide pipes are prone to deformation of the spiral threads and accumulation of concrete during use, which makes it difficult to connect the pipes and affects the quality of cast-in-place piles.
The pipe section is secured by a socket-type connection structure and a steel wire rope locking method. By setting grooves and convex tongues at the ends of the conduit, and using steel wire ropes to pass through the locking holes, a stable connection between pipe sections is ensured.
It improved the efficiency of duct installation and dismantling, ensured the continuity of concrete pouring, reduced unnecessary time intervals, lowered the risk of pile breakage and hole collapse, and increased the pile completion rate.
Smart Images
Figure CN224001950U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a guide pipe, in particular to a concrete guide pipe. BACKGROUND
[0002] The vertical guide pipe underwater pouring method is often used in the construction of the cast-in-place pile in the field of building construction; the main principle is to use the guide pipe to transport the concrete to isolate it from water, rely on the self-weight of the concrete in the pipe to extrude the concrete around the pipe opening to flow and diffuse in the already poured concrete to complete the pouring work of the concrete. SUMMARY
[0003] The utility model aims at overcoming the defects of the prior art and provides a concrete guide pipe which is convenient to disassemble and assemble.
[0004] In order to achieve the above-mentioned purpose, the utility model takes the following technical scheme:
[0005] The utility model relates to a concrete guide pipe, including single pipe who is connected each other head to tail, every single pipe includes guide pipe body, recess is opened to the one end of guide pipe body along the circumferential direction and the outer wall of guide pipe body is opened to a plurality of recess sides' rope through hole along the circumferential direction at the position corresponding to recess, the other end of guide pipe body is provided with the male type rebate who is in accord with the shape of recess and is opened to a plurality of male type rebate sides' rope through hole along the circumferential direction of male type rebate, the male type rebate of one single pipe of two single pipes who are connected each other head to tail is inserted into the recess of the other single pipe and forms the lock hole that recess sides' rope through hole and male type rebate sides' rope through hole position one to one correspond and coincide, and the steel wire rope passes through the lock hole in proper order to fix two single pipes who are connected each other and the both ends of steel wire rope are fixed through the lock catch.
[0006] The utility model has the advantages of:
[0007] By adopting the socket joint structure and combining the steel wire rope lock catch reinforcing structure, the installation and disassembly efficiency between pipe sections is improved under the premise that the water tightness of the guide pipe meets the requirements, the process and smoothness of the cast-in-place pile in the pipe section installation, lowering, pouring, pipe pulling and other processes are improved, the unnecessary time interval in the link is reduced, the overall continuity of the concrete pouring is ensured, the risks such as pile breaking and hole collapsing are avoided, and the pile forming proportion of the I pile is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 It is the structure schematic view of single guide pipe of the utility model's concrete guide pipe;
[0009] Figure 2Schematic diagram of the connection between two concrete conduit sections;
[0010] Figure 3 for Figure 2 A schematic diagram of the inter-pipe wire rope reinforcement structure shown;
[0011] Figure 4 for Figure 3 Enlarged schematic diagram of the steel wire rope in the structure shown;
[0012] Figure 5 To adopt Figure 3 The diagram shows a structural schematic of a conduit for pouring concrete. Detailed Implementation
[0013] The present invention will now be described in detail with reference to the accompanying drawings:
[0014] As shown in the attached figure, this utility model discloses a concrete conduit, comprising single pipes connected end-to-end. Each single pipe includes a conduit body. At one end of the conduit body, a groove 4-2 is formed along the circumferential direction, and multiple rope-passing holes 2 on the outer wall of the conduit body at positions corresponding to the groove are formed along the circumferential direction. At the other end of the conduit body, a convex tongue-and-groove 4-1 that matches the shape of the groove is provided, and multiple rope-passing holes on the convex tongue-and-groove side are formed along the circumferential direction of the convex tongue-and-groove. The convex tongue-and-groove of one of the two single pipes connected end-to-end is inserted into the groove of the other single pipe, and the positions of the rope-passing holes on the groove side and the rope-passing holes on the convex tongue-and-groove side are aligned to form locking holes. Steel wire ropes 5 pass through the locking holes in sequence to fix the two connected single pipes, and the two ends of the steel wire rope are fixed by locking buckles, which are commercially available.
[0015] Preferably, fixing grooves 3 are provided on the inner circumferential direction of the convex tongue and the outer circumferential direction of the groove, and the steel wire rope is embedded in the fixing grooves 3 for positioning.
[0016] The usage process of this structure is as follows: Based on the measurement and positioning results, the pile positions are laid out. After the steel casing 7 is lowered by a crane, it is reinforced with undisturbed soil 8 to ensure stability. Drilling is performed using conventional techniques. This structure is mainly used in the concrete pouring stage of the pile foundation; the pile formation process will not be detailed here.
[0017] During the catheter-based infusion stage, the newly tested and qualified catheters are transported to the working face in sections according to the required length. A crane is used to lift the first single-tube section vertically and install it at the center of the steel casing 7, with the end with the groove 4-2 facing upwards. After the first single-tube section is installed, it is fixed in place using a catheter fixing plate 6. The crane is then used to lift the second single-tube section vertically, with the end with the convex tongue-and-groove 4-1 facing downwards. It is then inserted into the groove 4-2 of the first single-tube section for connection. After connection, the second single-tube section can be freely rotated to ensure the rope holes 2 of the two single-tube sections are aligned. After the insertion connection is completed, a steel wire rope 5 is threaded through the locking hole to reinforce the two single tubes, and the steel wire rope is embedded in the fixing groove 3. After connection, as shown... Figure 3 , Figure 4 As shown. Open the guide pipe fixing plate 6, and use a crane to slowly lower the connected single pipe into the pile hole; re-fix it with the guide pipe fixing plate 6, and repeat this process to complete the extension and lowering of the single pipe according to the designed pile length. Install a concrete pouring funnel above the last section of the single pipe and pour concrete. According to the principle of the guide pipe method, in order to maintain the pressure balance between the concrete in the pile and the drilling mud, the entire process of pipe pulling and pouring needs to be interspersed according to the concrete pouring height.
[0018] The specific process for removing the guide pipe is as follows: When the concrete height inside the pile reaches a certain level, the guide pipe needs to be removed; after stopping concrete pouring, use a crane to lift it away from the concrete pouring funnel; open the guide pipe fixing plate 6 to release the guide pipe from its fixation, and gradually lift the entire length of the guide pipe out of the pile hole using a crane. When the connection between the penultimate and penultimate single pipe sections is exposed, remove the wire rope 5 and pull the penultimate single pipe section upwards to smoothly separate the convex tongue and groove 4-1 from the groove 4-2 of the penultimate single pipe section; use a crane to lift the penultimate single pipe section to one side, and use the guide pipe fixing plate 6 to fix the penultimate single pipe section (the new penultimate single pipe section); and install the concrete pouring funnel to repeat the concrete pouring. Repeat the pipe removal and pouring process in this way until the cast-in-place pile is completed. Clean the removed guide pipe and accessories and stack them for future use.
[0019] The above description is a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple structural modifications, equivalent changes, or simple replacements of profiles made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall fall within the protection scope of the technical solution of the present utility model.
Claims
1. A concrete duct comprising single pipes connected end to end to each other, each of said single pipes comprising a duct body, characterized in that: The recess is formed on one end of the conduit body in the circumferential direction, and a plurality of recess side rope passing holes are formed on the outer wall of the conduit body in the circumferential direction at the positions corresponding to the recess; the convex rebate is provided on the other end of the conduit body and matches the shape of the recess, and a plurality of convex rebate side rope passing holes are formed on the circumferential direction of the convex rebate; the convex rebate of one single pipe connected end to end with the other single pipe is inserted into the recess of the other single pipe, and the recess side rope passing holes and the convex rebate side rope passing holes are in one-to-one correspondence and overlap to form a lock hole; the steel wire rope is sequentially passed through the lock hole to fix the two single pipes connected with each other, and the two ends of the steel wire rope are fixed by a lock.
2. The concrete conduit according to claim 1, characterized in that: The inner wall of the convex rebate and the outer wall of the recess are respectively provided with a fixing groove, and the steel wire rope is embedded in the fixing groove to be positioned.