Weldless mechanical tee

CN224850368UActive Publication Date: 2026-10-13CHINA SHIPBUILDING IND (SHENYANG) LIAOHAI OIL TRANSPORTATION EQUIP CO LTD
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Patent Information

Application Number
CN202522506822.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-26
Publication Date
2026-10-13
Estimated Expiration
2035-11-26

AI Technical Summary

Technical Problem

传统的三通连接方式多采用焊接,这不仅需要专业的焊接设备和技能,而且焊接过程中可能产生热应力,导致管道变形或材料性能变化

Benefits of technology

[0006]本实用新型的有益技术效果为:本方案结构简单,安装过程便捷,适用于多种油气管道安装环境,具备较强的通用性和适应性,且通过两侧独立的卡瓦结构实现管道的定位,能够有效地防止管道因振动、热胀冷缩或外力的作用而发生位移或脱落,确保管道系统的安全运行。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of welding-free mechanical three-way, it is related to the technical field of welding-free mechanical three-way, the utility model aims to solve the problem of pipeline system safety, the utility model includes main body and connecting flange, the connecting flange is set in the top of main body, and connecting flange and main body are integrally formed structure, the inside both ends of main body are provided with the sealing assembly for filling the gap between main body and connecting pipeline. The scheme is simple in structure, convenient in installation process, suitable for a variety of oil and gas pipeline installation environment, with strong versatility and adaptability, and the positioning of pipeline is realized through the independent slip structure of two sides, can effectively prevent displacement or falling of pipeline due to vibration, thermal expansion and contraction or the action of external force, ensure the safe operation of pipeline system.
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Description

Technical Field

[0001] This utility model relates to the technical field of solderless mechanical tees, specifically a solderless mechanical tee. Background Technology

[0002] In piping systems, tees are common connectors used to branch or merge pipes. Traditional tee connections often involve welding, which requires specialized welding equipment and skills. Furthermore, the welding process can generate thermal stress, leading to pipe deformation or changes in material properties. In addition, welded tees are difficult to disassemble, hindering pipe maintenance and replacement. Utility Model Content

[0003] To address the aforementioned problems, i.e., the issues raised in the background art, this utility model proposes a weld-free mechanical tee, comprising a main body and a connecting flange. The connecting flange is positioned above the main body and is integrally formed with the main body. Both ends of the main body are provided with sealing components for filling the gap between the main body and the connecting pipe. The main body consists of an upper guard plate and a lower guard plate. The connecting flange is positioned on the upper guard plate. Both sides of the upper and lower guard plates are provided with ear plates, which are connected by bolt assemblies. The main body is symmetrically provided with clips on both sides. Each clip is assembled from two semi-circular collars by a bolt assembly, and the clip is connected to the main body by the bolt assembly. The clip has an annular groove inside, and a positioning ring for fitting onto the pipe is engaged inside the groove.

[0004] A further feature of this invention is that the outer wall surface of the positioning ring is a conical surface, the conical surface is inclined to one side of the main body, and the inner wall surface of the slot is a conical surface that fits with the positioning ring.

[0005] A further feature of this invention is that an end cap for sealing the connecting flange is installed on the connecting flange via a bolt assembly.

[0006] The beneficial technical effects of this utility model are as follows: the structure of this solution is simple, the installation process is convenient, it is applicable to various oil and gas pipeline installation environments, and it has strong versatility and adaptability. Moreover, the independent clamping structure on both sides realizes the positioning of the pipeline, which can effectively prevent the pipeline from shifting or falling off due to vibration, thermal expansion and contraction or external force, and ensure the safe operation of the pipeline system. Attached Figure Description

[0007] Figure 1 A schematic diagram of the overall structure of this solution is shown.

[0008] Figure 2 A schematic diagram of the main body's side structure is shown.

[0009] Figure 3 A schematic diagram of the side structure of the card is shown.

[0010] The attached diagram is labeled as follows: 1. Main body; 2. Connecting flange; 3. Slip; 4. Locating ring; 5. Ear plate. Detailed Implementation

[0011] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0012] This utility model proposes a weld-free mechanical tee, which, compared with the traditional mechanical tee, adds a slip structure to the independent slip mechanical tee. In cases where the pipeline is leaking or the pipelines at both ends are disconnected, the positioning operation of the tee device along the pipeline axis can be achieved. The main body 1 of this solution consists of an upper protective plate and a lower protective plate. First, the positioning ring is put on the pipeline, and the upper and lower protective plates are fastened to the outer wall of the pipeline and fixed by the ear plate 5 and bolt assembly. The main body 1 has a built-in sealing component to fill the gap. The slips 3 on both sides are fastened to the positioning ring 4 and the axis is locked by the bolt assembly. Then, the slips 3 on both sides are connected to the main body 1 by the bolt assembly, and the distance between the slips 3 and the main body 1 is controlled by the bolt assembly. At the same time, the annular groove on the inner wall of the slips 3 is fastened to the outside of the positioning ring 4 for circumferential positioning. The positioning ring 4 restricts the movement of the slips 3, and the slips 3 on both sides restrict the main body 1, effectively preventing the pipeline from shifting or falling off due to vibration, thermal expansion and contraction or other external forces, ensuring the safe operation of the pipeline system. Other equipment can be connected through the connecting flange 2. When it is not necessary to connect other equipment, simply install the end cap on the connecting flange 2.

[0013] The outer wall surface of the positioning ring 4 is set as a conical surface, and the inner wall surface of the annular groove is set as a conical surface that fits with the outer wall of the positioning ring 4. When the pipeline is subjected to external force, the direction of the force can be transferred through the conical surface, so that the slip 3 is locked on the outer wall of the pipeline, increasing the stability of the mechanical tee installation.

[0014] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0015] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0017] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0018] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A weld-free mechanical tee, comprising a body (1) and a connecting flange (2), wherein the connecting flange (2) is disposed above the body (1), and the connecting flange (2) and the body (1) are integrally formed; both ends of the body (1) are provided with sealing components for filling the gap between the body (1) and the connecting pipe, characterized in that: The main body (1) is composed of an upper guard plate and a lower guard plate. The connecting flange (2) is set on the upper guard plate. Ear plates (5) are provided on both sides of the upper guard plate and the lower guard plate. The ear plates respectively set on the upper guard plate and the lower guard plate are connected by bolt assemblies. The main body (1) is symmetrically provided with slips (3) on both sides. Each slip (3) is assembled from two semi-circular collars by bolt assembly, and the slip (3) is connected to the main body (1) by bolt assembly. The slip (3) has an annular groove inside, and a positioning ring (4) for fitting on the pipe is engaged inside the groove.

2. The solderless mechanical tee according to claim 1, characterized in that: The outer wall surface of the positioning ring (4) is set as a conical surface, the conical surface is inclined to the main body (1), and the inner wall surface of the slot is set as a conical surface that fits with the positioning ring (4).

3. The solderless mechanical tee according to claim 1, characterized in that: The connecting flange (2) is fitted with an end cap for sealing the connecting flange by means of a bolt assembly.