Water-swelling sealing cast steel alloy micro-top pipe joint
By setting through holes and limiting posts in the micro jacking pipe joint for fixing, and designing a water-swellable rubber ring, the problems of displacement and sealing of the micro jacking pipe joint during construction are solved, achieving efficient connection and excellent waterproof effect.
Patent Information
- Application Number
- CN202520764007.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-22
AI Technical Summary
Traditional micro-jacking pipe joints are prone to displacement or free rotation during construction, and their sealing performance is insufficient, making it difficult to meet the sealing requirements under complex working conditions.
The water-swellable sealed cast steel alloy micro-jacket joint is adopted. By setting through holes on the retaining ring and filling them with plastic to fix the structure, combined with the limiting post and the water-swellable rubber ring, the connection stability and sealing performance are enhanced.
It effectively prevents pipe and joint misalignment and free rotation during construction, improves connection accuracy and waterproof performance, and is suitable for construction in high humidity or water environments.
Smart Images
Figure CN223881851U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipeline engineering technical field, specifically disclose a water-swelling sealing cast steel alloy micro-top pipe joint, be applicable to the pipeline connection and sealing in micro-top pipe construction. BACKGROUND
[0002] In micro-top pipe construction, the connection stability and sealing of pipe joint are very important. In the construction process of traditional micro-top pipe joint, the connection structure between pipe joint and pipe material is often designed insufficiently, which leads to deviation or idling of the two in the construction process, affecting the construction efficiency and connection accuracy. In addition, the sealing structure of the existing joint relies on a single sealing mode, and the waterproof effect is limited, which is difficult to meet the sealing demand under complex working conditions. Therefore, there is an urgent need for a micro-top pipe joint that can effectively prevent deviation, enhance connection stability, and improve sealing performance. SUMMARY
[0003] The utility model aims at the deficiency in prior art, provide a water-swelling sealing cast steel alloy micro-top pipe joint, through the improvement joint and the connection structure and sealing structure of pipe material, solve the problem of deviation, idling between pipe material and joint in the construction process, enhance the sealing of joint, improve waterproof effect, ensure the efficiency and reliability of micro-top pipe construction.
[0004] To solve the above technical problems, the utility model provides a water-swelling sealing cast steel alloy micro-top pipe joint, which comprises a pipe material and a pipe joint sleeved on the end of the pipe material, the pipe joint comprises a pipe joint body and a retaining ring, the retaining ring is fixed to the middle of the inner wall of the pipe joint body, the retaining ring is provided with a plurality of through holes in the circumferential direction, and a fixing structure for fixedly connecting the pipe material and the pipe joint is arranged in the through hole.
[0005] As a further description of the above technical scheme, a groove for placing a water-swelling rubber ring is formed in the circumferential direction of the inner wall of the pipe joint body, the groove is located above the retaining ring, and a water-swelling rubber ring is placed in the groove. In the construction process, the rubber ring swells when it comes into contact with water, which enhances the sealing of the joint.
[0006] As a further description of the above technical scheme, the width of the groove is preferably 1cm, which matches the width of most water-swelling rubber rings on the market.
[0007] As a further description of the above technical scheme, the fixing structure comprises plastic glue filled in the through hole, which fixes the pipe material and the pipe joint by adhesion, and the solidified plastic glue also acts as a limiting column, limiting the relative rotation of the pipe material and the pipe joint from two aspects.
[0008] As a further description of the above technical solutions, the fixing structure comprises a limiting column arranged on the end face of the pipe, the position of the limiting column corresponds to the position of the through hole, and the limiting column is inserted into the through hole to fix and connect the pipe and the pipe joint.
[0009] As a further description of the above technical solutions, the limiting column has a circular, square or rhombic cross section.
[0010] As a further description of the above technical solutions, the gap between the outer wall of the limiting column and the inner wall of the through hole is filled with plastic glue, which further increases the connection accuracy of the pipe and the pipe joint and prevents the pipe and the pipe joint from deviating or idling during construction.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] 1. The pipe and the pipe joint are fixedly connected by arranging the through hole on the check ring and arranging the fixing structure in the through hole, so that deviation or idling of the pipe and the pipe joint during construction is prevented, and the connection accuracy and construction efficiency are improved.
[0013] 2. The groove is arranged above the check ring, and the water-swelling rubber ring is arranged in the groove, the water-swelling property of the rubber ring is utilized to form multiple seals, the waterproof performance of the joint is significantly improved, and the utility model is suitable for pipeline construction in high-humidity or water environments. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is a pipe structure schematic diagram of example one.
[0015] Figure 2 is a pipe joint structure schematic diagram of example one.
[0016] Figure 3 is a pipe and pipe joint assembly structure schematic diagram of example one.
[0017] Figure 4 is a pipe structure schematic diagram of example two.
[0018] Figure 5 is a pipe and pipe joint assembly structure schematic diagram of example two.
[0019] REFERENCE SIGNS:
[0020] 10-pipe; 11-mounting section; 12-end face; 13-limiting column; 20-pipe joint; 21-pipe joint body; 22-check ring; 23-through hole; 24-groove; 30-plastic glue; 40-water-swelling rubber ring. DETAILED DESCRIPTION
[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] Example 1
[0023] This embodiment provides a water-swellable, sealing cast steel alloy micro-jacking pipe joint, such as... Figures 1-3 As shown, the device includes a pipe 10 and a cast iron pipe fitting 20 sleeved on the end of the pipe 10. The end of the pipe 10 is provided with an installation section 11, and the pipe fitting 20 is sleeved on the installation section 11. The pipe fitting 20 includes a pipe fitting body 21 and a retaining ring 22. The retaining ring 22 is located in the middle of the inner wall of the pipe fitting body 21 and is integrally formed with the pipe fitting body 21. During installation, the retaining ring 22 abuts against the end face 12 of the pipe 10. The retaining ring 22 has six through holes 23 arranged circumferentially. The through holes 23 are filled with plastic glue 30 that fixes the pipe 10 and the pipe fitting 20. The plastic glue 30 serves as an adhesive and, after solidification, also acts as a limiting post, restricting the relative rotation of the pipe 10 and the pipe fitting 20 from two aspects, preventing them from shifting or spinning during construction, and improving construction efficiency and connection accuracy.
[0024] The inner wall of the pipe joint body 21 has a groove 24 with a width of 1cm along the circumference. The groove 24 is located above the retaining ring 23. A water-swellable rubber ring 40 is placed in the groove 24. During construction, the rubber ring 40 expands when it comes into contact with water, which is used to enhance the sealing of the joint and significantly improve the waterproof performance of the joint. It is suitable for pipeline construction in high humidity or water environment.
[0025] Example 2
[0026] This embodiment provides a water-swellable, sealing cast steel alloy micro-jacking pipe joint, such as... Figure 4 , Figure 5 As shown, the difference from Embodiment 1 is that six limiting posts 13, corresponding to the positions of the through holes 23 of the pipe joint, are machined on the end face 12 of the pipe 10 using a CNC machine tool. The cross-section of the limiting posts 13 can be circular, square, or rhomboid, and the size is determined by whether they can be easily inserted into the through holes. When the pipe 10 and the pipe joint 20 are assembled, the limiting posts 13 are inserted into the through holes 23 of the pipe joint, thereby fixing the pipe 10 and the pipe joint 20 together, restricting the relative rotation of the pipe 10 and the pipe joint 20, and preventing them from shifting or spinning freely during construction.
[0027] If there is a gap between the limiting column 13 and the through hole 23, the gap can be filled with plastic glue to improve the connection precision of the pipe 10 and the pipe joint 20, and further prevent relative movement of the two during construction.
[0028] The above is only the best implementation of the present application. It should be noted that for those skilled in the art, without departing from the principles of the present application, the technical solutions of the present application can be modified or replaced equivalently, and the technical effects of the present application can also be achieved, which should be considered as belonging to the protection scope of the present application.
Claims
1. A water-swellable, sealable cast steel alloy micro-jacking pipe joint, comprising a pipe (10) and a pipe joint (20) sleeved on the end of the pipe (10), wherein the pipe joint (20) comprises a pipe joint body (21) and a retaining ring (22), the retaining ring (22) being fixed in the middle of the inner wall of the pipe joint body (21), characterized in that: The stop ring (22) is circumferentially provided with a plurality of through holes (23), and a fixing structure for fixing and connecting the pipe (10) and the pipe joint (20) is arranged in the through holes (23).
2. The water-swellable sealed cast steel alloy micro-pipe joint according to claim 1, characterized in that: A groove (24) for placing a water-swelling rubber ring is formed in the inner wall of the pipe joint body (21) in a circumferential direction, and the groove (24) is located above the stop ring (22).
3. The water-swellable sealed cast steel alloy micro-pipe joint according to claim 2, characterized in that: The width of the groove (24) is 1 cm.
4. The water-swellable sealed cast steel alloy micro-pipe joint according to claim 1 or 2, characterized in that: The fixing structure comprises plastic glue (30) filled in the through holes (23).
5. The water-swellable sealed cast steel alloy micro-pipe joint according to claim 1 or 2, characterized in that: The fixing structure comprises a limiting column (13) arranged on the end face of the pipe (10), the position of the limiting column (13) corresponds to the position of the through hole (23), and the limiting column (13) penetrates into the through hole (23) to fix and connect the pipe (10) and the pipe joint (20).
6. The water-swellable sealed cast steel alloy micro-pipe joint of claim 5, wherein: The cross section of the limiting column (13) is circular, square or rhombic.
7. The water-swellable sealed cast steel alloy micro-pipe joint of claim 6, wherein: The gap between the outer wall of the limiting column (13) and the inner wall of the through hole (23) is filled with plastic glue.