A conductor joint

CN224872073UActive Publication Date: 2026-10-20PATTON (TIANJIN) PETROLEUM TECH SERVICE CO LTD
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Patent Information

Application Number
CN202522582076.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-10-20
Estimated Expiration
2035-12-05

AI Technical Summary

Technical Problem

[0003]现有技术中,部分隔水套管接头装置在复杂工况下,如钻井设备过程中的振动、地层流体的冲击、海洋环境中的波浪载荷等,接头装置的锁紧部件易受到持续的反向扭矩作用,由于缺乏可靠的防倒转设计,锁紧结构发生松动甚至反向旋转,导致接头密封性能下降,以及安全性和高效性降低,降低了工作的效率

Benefits of technology

[0013]固定孔、螺钉和内凹弧槽的设置便于工作人员螺纹连接后的公接头和母接头进行锁紧工作,从而可以在公接头和母接头连接后起到防倒转的功能。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a water -resistant bushing joint, specifically relates to pipeline technical field, including male joint, and with the female joint of male joint threaded connection, the lower end surface of female joint is opened with fixed hole to the circumference, the fixed hole is connected with screw in screw thread, the lower end surface of male joint is opened with the female arc groove that cooperates with screw end part to the circumference, the one end of screw is away from male joint and is provided with annular buckle, the setting of fixed hole, screw and female arc groove is convenient for the locking work of male joint and female joint after threaded connection of staff, thereby can play the function of preventing the reverse after male joint and female joint connect.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, and in particular to a water-proof sleeve joint. Background Technology

[0002] A riser sleeve is a connecting component used to isolate and protect different media and fluids in a pipeline system. As a key structural component, the riser sleeve undertakes important functions such as isolating seawater and groundwater, protecting internal drilling tools and pipelines, and maintaining wellbore stability.

[0003] In existing technologies, under complex working conditions such as vibration during drilling, impact of formation fluids, and wave loads in marine environments, the locking components of some water-proof casing joint devices are susceptible to continuous reverse torque. Due to the lack of reliable anti-reverse design, the locking structure may loosen or even rotate in the opposite direction, resulting in a decrease in joint sealing performance, as well as reduced safety and efficiency, thus reducing work efficiency. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a water-proof sleeve joint to more accurately resolve these issues.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model proposes a water-proof sleeve connector, including a male connector and a female connector threadedly connected to the male connector. The lower end face of the female connector has a fixing hole in the circumferential direction, and a screw is threaded into the fixing hole. The lower end face of the male connector has an inwardly concave arc groove that mates with the end of the screw.

[0007] Furthermore, the male connector includes a first annular body, an annular protrusion disposed on the lower end face of the first annular body, and an inner concave arc groove formed on the circumference of the male connector and located above the annular protrusion. An external thread is formed on the outer surface of the first annular body and above the inner concave arc groove.

[0008] Furthermore, the female connector includes a second annular body and an inner annular groove formed inside the second annular body and cooperating with the first annular body. The inner surface of the inner annular groove is provided with an internal thread that cooperates with the external thread. A fixing hole is formed circumferentially on the lower end face of the second annular body.

[0009] Furthermore, the present invention provides four fixing holes, four concave arc grooves, and four screws.

[0010] Furthermore, the male connector and the female connector are welded to both ends of the waterproof sleeve, respectively.

[0011] Furthermore, in this invention, the screw includes a threaded rod that is threadedly connected to the fixing hole, and an annular buckle is provided at the end of the threaded rod away from the male connector.

[0012] The beneficial effects of this utility model are:

[0013] The design of fixing holes, screws, and concave arc grooves facilitates the locking of male and female connectors after threaded connection, thus preventing reverse rotation after connection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of the male and female connectors in this utility model;

[0016] Figure 3 This is a schematic diagram of the female connector structure in this utility model.

[0017] In the figure, 1 is the male connector; 11 is the concave arc groove; 12 is the first annular body; 13 is the annular protrusion; 14 is the external thread; 2 is the female connector; 21 is the fixing hole; 22 is the screw; 23 is the annular buckle; 24 is the second annular body; 25 is the inner annular groove; 26 is the internal thread. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, of the embodiments of this utility model. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Example

[0020] refer to Figure 1-3 A water-proof sleeve connector includes a male connector 1 and a female connector 2 threadedly connected to the male connector 1. The lower end face of the female connector 2 is provided with a fixing hole 21 in the circumferential direction. The fixing hole 21 is connected with a screw 22 by an internal thread 26. The lower end face of the male connector 1 is provided with an inward concave arc groove 11 that mates with the end of the screw 22 in the circumferential direction.

[0021] Screw 22 includes a threaded rod that is threaded into fixing hole 21, and an annular buckle 23 is provided at the end of the threaded rod away from the male connector;

[0022] The setting of fixing hole 21, screw 22 and concave arc groove 11 facilitates the locking work of male connector 1 and female connector 2 after thread connection by the operator, so as to play the function of preventing reverse rotation after male connector 1 and female connector 2 are connected.

[0023] In this design, the thread engagement surface of male connector 1 and female connector 2 has a slope of 65 degrees, and the tooth profile ends of internal thread 26 and external thread 14 are R1.2. The advantage of this design for male connector 1 and female connector 2 is that it can greatly improve the thread tightening speed, thereby increasing the connection efficiency between male connector 1 and female connector 2.

[0024] Specifically, workers can connect the female connector 2 to the external suspension equipment using the ring buckle 23. Then, the external suspension equipment is used to attach the female connector 2 to the outside of the male connector 1. The connection between the female connector 2 and the male connector 1 is achieved by rotating the female connector 2. When the female connector 2 is rotated to the designated position, the workers disconnect the ring buckle 23 from the external suspension equipment and simultaneously rotate the screw 22, causing the end of the screw 22 to move into the concave arc groove 11, thus completing the locking and limiting work between the female connector 2 and the male connector 1. In addition, the screw 22 on the male connector 1 and the female connector 2 has a fast tightening speed, which greatly shortens the operation time, improves work efficiency, and ensures safe, efficient, convenient and environmentally friendly production.

[0025] like Figure 2 As shown, the male connector 1 includes a first annular body 12, an annular protrusion 13 disposed on the lower end face of the first annular body 12, and an inner concave arc groove 11 opened in the circumferential direction of the male connector 1 and located above the annular protrusion 13. An external thread 14 is provided on the outer surface of the first annular body 12 and above the inner concave arc groove 11.

[0026] The annular protrusion 13 not only serves to support the female connector 2, but also limits the rotation range of the female connector 2, thereby ensuring that after the female connector 2 has rotated, the fixing hole 21 will be opposite to the concave arc groove 11.

[0027] like Figure 3 As shown, the female connector 2 includes a second annular body 24 and an inner annular groove 25 formed inside the second annular body 24 and cooperating with the first annular body 12. The inner surface of the inner annular groove 25 is provided with an internal thread 26 that cooperates with the external thread 14. The lower end face of the second annular body 24 is provided with a fixing hole 21 in the circumferential direction.

[0028] The internal thread 26 is designed to engage with the external thread 14, ensuring the connection between the female connector 2 and the male connector 1. The inner annular groove 25 provides space for the installation of the male connector 1.

[0029] In this embodiment, four of each of the fixing holes 21, concave arc grooves 11, and screws 22 are provided.

[0030] In this embodiment, the male connector 1 and the female connector 2 are welded to both ends of the waterproof sleeve, respectively.

[0031] Working principle:

[0032] When connecting male connector 1 and female connector 2, the operator first removes the four screws 22 and connects them to the four fixing holes 21. Next, the ring buckle 23 at one end of each screw 22 is connected to the external suspension device. Then, the operator connects female connector 2 to male connector 1 using the external suspension device, ensuring the external thread 14 contacts the internal thread 26. Simultaneously, the operator rotates female connector 2, engaging the internal thread 26 with the external thread 14. After female connector 2 is rotated to the preset position, the fixing hole 21 will engage with the concave arc. With the grooves 11 facing each other, the workers disconnect the ring buckle 23 from the external suspension equipment and simultaneously rotate the screw 22 through the ring buckle 23. The end of the screw 22 moves inward into the concave arc groove 11, completing the locking of the female connector 2 and the male connector 1. At the same time, the screw 22 after installation can prevent reverse rotation during the use of the male connector 1 and the female connector 2. In addition, the screw 22 on the male connector 1 and the female connector 2 has a fast tightening speed, which greatly shortens the operation time, improves work efficiency, and ensures safe, efficient, convenient and environmentally friendly production.

[0033] It should be noted that this utility model only protects the mechanical part, and the functions implemented by the software control part are not within the scope of protection of this utility model.

[0034] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A water-proof sleeve joint, characterized in that, It includes a male connector and a female connector that is threadedly connected to the male connector. The lower end face of the female connector has a fixing hole in the circumferential direction, and a screw is threaded into the fixing hole. The lower end face of the male connector has an inwardly concave arc groove that mates with the end of the screw.

2. The water-tight sleeve joint according to claim 1, characterized in that, The male connector includes a first annular body, an annular protrusion disposed on the lower end face of the first annular body, and an inner concave arc groove formed on the circumference of the male connector and located above the annular protrusion. An external thread is formed on the outer surface of the first annular body and above the inner concave arc groove.

3. A water-tight sleeve joint according to claim 1, characterized in that, The female connector includes a second annular body and an inner annular groove formed inside the second annular body and cooperating with the first annular body. The inner surface of the inner annular groove is provided with an internal thread that mates with the external thread. A fixing hole is formed circumferentially on the lower end face of the second annular body.

4. A water-tight sleeve joint according to claim 1, characterized in that, The fixing hole, the concave arc groove, and the screw are all provided in four parts.

5. A water-tight sleeve joint according to claim 1, characterized in that, The male and female connectors are welded to both ends of the waterproof sleeve, respectively.

6. A water-tight sleeve joint according to claim 1, characterized in that, The screw includes a threaded rod that is threaded into a fixing hole, and the end of the threaded rod away from the male connector is provided with an annular buckle.