High-cleanliness corrosion-resistant three-way pipe with quick connectors
By using quick-connect couplings and a multi-layered corrosion-resistant structure, the problems of complex and easily corroded traditional tee pipe connections are solved, enabling quick connection, disassembly, and efficient maintenance, reducing labor costs and corrosion frequency, and ensuring product cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINING YAOKUN MASCH CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-04-17
AI Technical Summary
The traditional method of connecting tee pipes to other pipes is complicated, time-consuming, and labor-intensive, and inconvenient when frequently disassembling and replacing parts.
It adopts a quick-connect design, including an inner tube, a fixing collar, an elastic plate, and a transmission assembly. By rotating the hexagonal block, the sleeve is rotated, which realizes the deformation of the elastic plate and the limiting block, allowing for quick fixing and disassembly of the external pipe. The inner wall adopts a multi-layer corrosion-resistant structure, including a polytetrafluoroethylene lining layer, a corrosion-resistant titanium alloy layer, and a metal oxide nanomaterial anti-corrosion coating, providing triple protection.
It enables quick connection and disconnection of the tee pipe to external pipelines, reducing operational complexity and labor costs. Furthermore, the multi-layer corrosion-resistant structure reduces the frequency of replacement due to corrosion, thereby improving system maintenance efficiency and product cleanliness.
Smart Images

Figure CN224135430U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe connection technology, and in particular to a high-cleanliness corrosion-resistant tee pipe with quick-connect fittings. Background Technology
[0002] In industries with stringent requirements for fluid transport, such as chemical, food and beverage, pharmaceutical, semiconductor and new energy, pipeline systems serve as the vascular network for material transport, playing a core role in connecting various production stages. Among them, the tee pipe, as a pivotal component in the pipeline system, not only needs to achieve a stable connection between pipelines in different directions, but also needs to meet the complex requirements of efficient fluid diversion and precise merging.
[0003] During the installation and maintenance of pipeline systems, the connection method between the tee pipe and other pipes is also crucial. Traditional connection methods, such as welding and threaded connections, are complicated to operate, time-consuming and labor-intensive, and extremely inconvenient to use in scenarios that require frequent disassembly and replacement of parts. Utility Model Content
[0004] The purpose of this utility model is to address the following shortcomings in the existing technology: In the installation and maintenance of pipeline systems, the connection method between the tee pipe and other pipelines is also crucial. Traditional connection methods, such as welding and threaded connections, are complex to operate, time-consuming and labor-intensive, and extremely inconvenient to use in scenarios where frequent disassembly and replacement of parts are required. Therefore, a high-cleanliness corrosion-resistant tee pipe with quick-connect fittings is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A high-cleanliness corrosion-resistant tee pipe with quick-connect fittings includes a tee pipe body, with inner inserts fixedly installed on the inner walls of both ends of the tee pipe body, and fixing collars fixedly sleeved on the outer sides of both ends of the tee pipe body.
[0007] One end of the fixed collar is circumferentially fixed with elastic plates, and multiple elastic plates are inclinedly fixed at one end of the fixed collar. Limiting blocks are fixedly installed on the side of the multiple elastic plates near the inner tube. The fixed collar is provided with a transmission component for driving the multiple elastic plates to deform towards the inner tube.
[0008] Preferably, the surface of the fixed collar is threaded, and the transmission assembly includes a rotating sleeve threaded onto the fixed collar and a hexagonal block fixedly fitted onto the rotating sleeve.
[0009] Preferably, the plurality of limiting blocks have a plurality of rectangular openings on the side near the inner tube, and the number of the rectangular openings is not less than five.
[0010] Preferably, a sealing ring is fitted onto the inner tube, and one side of the sealing ring contacts one end of the tee tube body.
[0011] Preferably, the inner wall of the tee pipe body adopts a multi-layer corrosion-resistant structure. The innermost corrosion-resistant structure is a lining layer made of polytetrafluoroethylene. The middle corrosion-resistant structure is a corrosion-resistant alloy layer made of corrosion-resistant titanium alloy. The outermost corrosion-resistant structure is an anti-corrosion coating made of metal oxide nanomaterials.
[0012] Preferably, the inner wall of the tee tube body is polished, and the roughness value of the inner wall of the tee tube body is less than 0.1 μm.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. When the tee pipe is connected to an external pipeline, one end of the external pipeline is fitted onto the inner insert pipe. Then, through the elastic component, the end of the multiple elastic plates with limit blocks is deformed towards the external pipeline, so that the multiple limit blocks are in contact with the external pipeline, thereby fixing one end of the external pipeline between the inner insert pipe and the multiple limit blocks. During the maintenance of the pipeline system, disassembly can be easily completed. The operation is convenient, which greatly improves work efficiency and reduces labor costs.
[0015] 2. Through a multi-layered corrosion-resistant structural design, the pipeline consists of a polytetrafluoroethylene inner lining, a corrosion-resistant titanium alloy layer, and a metal oxide nanomaterial anti-corrosion coating, forming a triple protection system. This greatly reduces the frequency of replacement due to pipeline corrosion and minimizes losses caused by production interruptions. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a high-cleanliness, corrosion-resistant tee pipe with a quick-connect fitting proposed in this utility model.
[0017] Figure 2 This utility model provides a three-dimensional structural diagram of a high-cleanliness, corrosion-resistant tee pipe with quick-connect fittings for connecting to an external pipeline.
[0018] Figure 3 A schematic diagram of a partial three-dimensional cross-section of the fixed collar, inner tube, elastic plate, rotating sleeve, and hexagonal block;
[0019] Figure 4 This is a schematic diagram of the corrosion-resistant structure;
[0020] Figure 5 for Figure 3 Enlarged view of the structure at point A in the middle.
[0021] In the diagram: 1. Tee body, 2. Inner tube, 3. Fixing collar, 4. Elastic plate, 5. Limiting block, 6. Rotating sleeve, 7. Hexagonal block, 8. Rectangular opening, 9. Sealing ring, 101. Inner lining, 102. Corrosion-resistant alloy layer, 103. Anti-corrosion coating. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figures 1-5 A high-cleanliness corrosion-resistant tee pipe with quick-connect fittings includes a tee pipe body 1, with inner inserts 2 fixedly installed on the inner walls of both ends of the tee pipe body 1, and fixing collars 3 fixedly sleeved on the outer sides of both ends of the tee pipe body 1. When an external pipe is connected to the tee pipe, one end of the external pipe is sleeved on the inner insert 2, so that one end of the external pipe contacts one end of the tee pipe body 1.
[0024] Elastic plates 4 are fixedly installed at equal intervals around one end of the fixed collar 3. Multiple elastic plates 4 are all fixedly installed at an angle at one end of the fixed collar 3. Limiting blocks 5 are fixedly installed on the side of the multiple elastic plates 4 near the inner insertion tube 2. The fixed collar 3 is provided with a transmission assembly for driving the multiple elastic plates 4 to deform towards the inner insertion tube 2. The surface of the fixed collar 3 is threaded. The transmission assembly includes a rotating sleeve 6 threaded onto the fixed collar 3 and a hexagonal block 7 fixedly sleeved onto the rotating sleeve 6.
[0025] When one end of the external pipe is fitted onto the inner tube 2, a wrench is used to rotate the hexagonal block 7, causing the rotating sleeve 6 to rotate on the fixed collar 3. Under the action of the thread, the rotating sleeve 6 moves towards the multiple elastic plates 4 on the fixed collar 3. When one end of the rotating sleeve 6 contacts the side of the multiple elastic plates 4 away from the inner tube 2, the elastic plates 4 will undergo elastic deformation towards the inner tube 2. That is, the elastic plates 4 will drive the limiting block 5 to move closer to the external pipe until the limiting block 5 contacts the surface of the external pipe, thereby clamping the external pipe between the multiple limiting blocks 5 and the inner tube 2. When disassembling, simply move the rotating sleeve 6 in the opposite direction to contact the clamping force of the limiting block 5 on the external pipe. During the maintenance of the pipeline system, disassembly can be easily completed. The operation is convenient, greatly improving work efficiency and reducing labor costs.
[0026] Multiple limiting blocks 5 have multiple rectangular openings 8 on the side near the inner tube 2. The number of rectangular openings 8 is no less than five. When the limiting block 5 contacts the external pipe, the multiple rectangular openings 8 can increase the friction between the limiting block 5 and the external pipe, ensuring the stability of the connection between the tee pipe and the external pipe.
[0027] A sealing ring 9 is fitted on the inner tube 2. One side of the sealing ring 9 is in contact with one end of the tee tube body 1. When the external pipe is fitted on the inner tube 2, one end of the external pipe is in contact with the sealing ring 9, thereby ensuring the sealing of the connection between the tee tube and the external pipe.
[0028] The inner wall of the tee pipe body 1 adopts a multi-layer corrosion-resistant structure. The innermost corrosion-resistant structure is the inner lining layer 101, which is made of polytetrafluoroethylene (PTFE). The middle corrosion-resistant structure is the corrosion-resistant alloy layer 102, which is made of corrosion-resistant titanium alloy. The outermost corrosion-resistant structure is the anti-corrosion coating 103, which is made of metal oxide nanomaterials. Through the multi-layer corrosion-resistant structure design, from the inside to the outside, it consists of the PTFE inner lining layer 101, the corrosion-resistant titanium alloy layer 102, and the metal oxide nanomaterial anti-corrosion coating 102, forming a triple protection system. The PTFE inner lining layer 101 can directly resist the erosion of corrosive media, the corrosion-resistant titanium alloy layer 102 provides structural strength and auxiliary corrosion resistance, and the metal oxide nanomaterial anti-corrosion coating 103 further enhances the surface corrosion resistance, greatly reducing the frequency of replacement due to pipe corrosion and reducing losses caused by production interruptions.
[0029] The inner wall of the T-shaped pipe body 1 is polished, with a roughness value of less than 0.1μm. This extremely low surface roughness effectively reduces the adhesion of impurities and dirt, enabling the T-shaped pipe to maintain a high level of cleanliness during use. This ensures that the transported products are not contaminated, guaranteeing product quality and safety.
[0030] In this invention, when one end of the external pipe is fitted onto the inner tube 2, a wrench is used to rotate the hexagonal block 7, causing the rotating sleeve 6 to rotate on the fixed collar 3. Under the action of the thread, the rotating sleeve 6 moves on the fixed collar 3 towards the multiple elastic plates 4. When one end of the rotating sleeve 6 contacts the side of the multiple elastic plates 4 away from the inner tube 2, the elastic plates 4 will undergo elastic deformation towards the inner tube 2. That is, the elastic plates 4 will drive the limiting block 5 to move closer to the external pipe until the limiting block 5 contacts the surface of the external pipe, thereby clamping the external pipe between the multiple limiting blocks 5 and the inner tube 2. During disassembly, it is only necessary to move the rotating sleeve 6 in the opposite direction to contact the clamping force of the limiting block 5 on the external pipe. During the maintenance of the pipeline system, disassembly can be easily completed. The operation is convenient, greatly improving work efficiency and reducing labor costs.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A high cleanliness corrosion resistant tee with quick coupling, comprising a tee body (1), characterized in that, The inner walls of both ends of the three-way pipe body (1) are fixedly installed with inner tubes (2), and the outer sides of both ends of the three-way pipe body (1) are fixedly sleeved with fixing collars (3). One end of the fixed collar (3) is circumferentially fixed with elastic plates (4), and multiple elastic plates (4) are inclinedly fixed at one end of the fixed collar (3). Limiting blocks (5) are fixedly installed on the side of the multiple elastic plates (4) near the inner tube (2). The fixed collar (3) is provided with a transmission component for driving the multiple elastic plates (4) to deform towards the inner tube (2).
2. A high purity corrosion resistant tee with quick coupling according to claim 1, characterized in that, The fixed collar (3) has threads on its surface, and the transmission assembly includes a rotating sleeve (6) threaded onto the fixed collar (3) and a hexagonal block (7) fixedly sleeved onto the rotating sleeve (6).
3. A high purity corrosion resistant tee with quick coupling according to claim 1, wherein, The multiple limiting blocks (5) have multiple rectangular openings (8) on the side near the inner tube (2), and the number of rectangular openings (8) is not less than five.
4. The high purity corrosion resistant tee with quick coupling according to claim 1, wherein, A sealing ring (9) is fitted on the inner tube (2), and one side of the sealing ring (9) is in contact with one end of the three-way tube body (1).
5. The high purity corrosion resistant tee with quick coupling according to claim 1, wherein, The inner wall of the three-way pipe body (1) adopts a multi-layer corrosion-resistant structure. The innermost corrosion-resistant structure is an inner lining layer (101) made of polytetrafluoroethylene. The middle corrosion-resistant structure is a corrosion-resistant alloy layer (102) made of corrosion-resistant titanium alloy. The outermost corrosion-resistant structure is an anti-corrosion coating (103) made of metal oxide nanomaterials.
6. A high purity corrosion resistant tee having a quick coupling fitting according to claim 5, wherein, The inner wall of the three-way pipe body (1) is polished, and the roughness value of the inner wall of the three-way pipe body (1) is less than 0.1 μm.