Steel lining polytetrafluoroethylene three-way pipe with sealed oxidation-resistant strength

Abstract

The utility model relates to the technical field of three-way pipes, in particular to a steel lining polytetrafluoroethylene three-way pipe with sealed oxidation-resistant strength, which comprises a three-way pipe body, locking mechanisms are arranged on the outer walls of three ports of the three-way pipe body, and sealing rings are fixedly arranged on the three ports of the three-way pipe body. The locking mechanism comprises rotating sleeves, conical clamping blocks and inner clamping sleeves, the three rotating sleeves are sequentially and movably installed on the outer walls of the three ports of the three-way pipe body, the three conical clamping blocks are fixedly connected with the front ends of the three ports of the three-way pipe body, the inner clamping sleeves are movably arranged on the outer walls of the conical clamping blocks in a sleeving mode, and the inner clamping sleeves are fixedly connected with the outer walls of the three ports of the three-way pipe body in a sleeving mode. The inner clamping sleeve is located in the rotating sleeve. The interior of the conical clamping block is provided with a plurality of open grooves, and the open grooves are annularly formed in the interior of the conical clamping block. According to the three-way pipe, the functions of efficient sealing connection and high-strength tolerance are achieved, and the performance and reliability of the three-way pipe are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tee pipes, in particular to a steel-lined polytetrafluoroethylene tee pipe with oxidation-resistant strength and sealing. Background Art

[0002] With the development of society, tees play a vital role in many fields, especially in piping systems. Tees connect one pipe to another, allowing fluids to be distributed, diverted, or merged in different directions and paths. They are widely used in industries such as chemical, petroleum, natural gas, building water supply and drainage, and HVAC. Their importance lies in their ability to construct complex and efficient pipeline networks, ensuring the normal operation of various industrial production and daily living facilities, and improving the efficiency and flexibility of fluid transmission.

[0003] However, the existing tee pipes are prone to leakage during the process of transporting fluids in the pipeline due to insufficient sealing. For pipelines that transport liquids, leakage will cause liquid seepage, resulting in material waste, increased production costs, and may also pollute the surrounding environment. Even when some special liquids (such as corrosive liquids) leak, they will cause damage to surrounding equipment, building structures, etc., causing safety accidents. Moreover, as time goes by, the tee pipe material fatigues, ages, or structurally deforms due to the long-term influence of factors such as fluid pressure and temperature changes. The tee pipe with reduced strength is prone to rupture, deformation, and other faults. It not only requires frequent repairs and replacements, increasing maintenance costs and downtime, affecting the normal order of production or life, but may also cause large-scale fluid leakage due to sudden ruptures, triggering serious secondary disasters and bringing huge losses to society and the economy. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a steel-lined polytetrafluoroethylene three-way pipe with oxidation resistance and strong sealing.

[0005] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a steel-lined polytetrafluoroethylene tee with oxidation-resistant strength sealing, comprising a tee body, the outer walls of the three ports of the tee body are all equipped with locking mechanisms, and the three ports of the tee body are all fixedly equipped with sealing rings;

[0006] The locking mechanism includes a rotating sleeve, a conical clamping block and an inner clamping sleeve. The rotating sleeve has three outer walls that are movably installed in sequence on the three ports of the tee pipe body. The conical clamping block has three front ends fixedly connected to the three ports of the tee pipe body. The inner clamping sleeve is movably mounted on the outer wall of the conical clamping block. The inner clamping sleeve is located inside the rotating sleeve.

[0007] Furthermore, the conical clamping block is provided with a groove therein, and a plurality of the grooves are provided in a ring shape inside the conical clamping block. The inner wall of the inner clamping sleeve is provided with an inclined surface corresponding to the outer wall of the conical clamping block.

[0008] Furthermore: a support shaft is fixedly connected to the port of the tee pipe body, the support shaft is located on the outer wall of the conical clamping block, a sliding hole is opened inside the inner clamping sleeve, and the support shaft is located inside the sliding hole.

[0009] Furthermore, an outer wall of the inner clamping sleeve is provided with an external thread, and an inner wall of the rotating sleeve is provided with an internal thread, and the external thread and the internal thread are engaged with each other.

[0010] Furthermore: the rear end of the rotating sleeve is fixedly connected with an annular movable ring, the outer wall of the three-way pipe body is provided with an annular movable groove, and the annular movable ring is movably installed inside the annular movable groove.

[0011] Further: a tapered block is fixedly connected to the inner wall of the tee pipe body, and the tapered block is located at the intersection of the three pipe fittings of the tee pipe body.

[0012] Furthermore: the three-way pipe body is composed of a polytetrafluoroethylene layer and a stainless steel layer, the polytetrafluoroethylene layer is located on the outer layer of the three-way pipe body, and the stainless steel layer is located on the inner layer of the polytetrafluoroethylene layer.

[0013] The utility model has the following beneficial effects:

[0014] 1. Compared with the prior art, by providing a tee pipe body, a rotating sleeve, a conical clamping block, an inner clamping sleeve, a bevel, an external thread, an internal thread, a support shaft, a sliding hole and a sealing ring, during installation and use, the pipe to be connected is first inserted into the port of the tee pipe body so that it contacts the inner wall of the conical clamping block. Then, the rotating sleeve is rotated, and through the transmission of the internal thread and the external thread, the inner clamping sleeve moves along the support shaft in the sliding hole, and the bevel of its inner wall causes the conical clamping block to contract and tightly clamp the pipe. At the same time, the sealing ring seals the connection part to complete the connection operation. The utility model can effectively enhance the sealing performance during connection, prevent fluid leakage, reduce material waste and environmental pollution risks, improve the safety and stability of the pipeline system, ensure the normal operation of various fluid transportation operations, and reduce maintenance costs and safety hazards.

[0015] 2. Compared with the existing technology, by providing the tee body and the tapered block, when in use, when the fluid flows within the tee body and passes through the intersection of the three pipe fittings, the presence of the tapered block changes the flow path of the fluid, causing the fluid to gradually change direction under the guidance of the tapered block, slowing the flow rate and impact force of the fluid, and reducing scouring and wear on the inner wall of the tee body. This utility model improves the tee body's ability to resist fluid impact.

[0016] 3. Compared with the existing technology, by setting up the polytetrafluoroethylene layer and the stainless steel layer, the polytetrafluoroethylene layer has an extremely low friction coefficient, excellent chemical stability and anti-oxidation performance. During the use of the pipeline, its outer layer can effectively resist the erosion of corrosive substances such as oxygen, acids and alkalis in the external environment, reducing material aging and damage caused by oxidation and corrosion. The stainless steel layer, with its high strength and high toughness material properties, provides a solid structural support for the tee pipe body, can withstand high internal pressure and external loads, maintain stable performance under harsh working conditions such as high temperature and high pressure, prevent the tee pipe body from deformation, rupture and other failures, and ensure the safe and stable operation of the pipeline system. This utility model can improve the use strength of the tee pipe, the reliability under complex working conditions, reduce the frequency of maintenance and replacement, ensure the long-term stable operation of the pipeline system, and improve industrial production efficiency and the safety of living facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0020] Figure 4 for Figure 2 Enlarged structural diagram at point B in the middle.

[0021] Legend:

[0022] 1. Tee body; 101. Polytetrafluoroethylene layer; 102. Stainless steel layer; 2. Locking mechanism; 201. Rotating sleeve; 202. Conical clamping block; 203. Slot; 204. Inner sleeve; 205. Inclined surface; 206. External thread; 207. Internal thread; 208. Support shaft; 209. Sliding hole; 210. Annular movable ring; 211. Annular movable groove; 3. Sealing ring; 4. Conical block. DETAILED DESCRIPTION

[0023] Reference Figure 1-4The utility model provides a steel-lined polytetrafluoroethylene tee with oxidation resistance and strength sealing: it includes a tee body 1, the outer walls of the three ports of the tee body 1 are all equipped with locking mechanisms 2, and the three ports of the tee body 1 are all fixedly equipped with sealing rings 3; the locking mechanism 2 includes a rotating sleeve 201, a conical clamping block 202 and an inner clamping sleeve 204, the rotating sleeve 201 has three outer walls of the three ports of the tee body 1 that are movably installed in sequence, the conical clamping block 202 has three front ends fixedly connected to the three ports of the tee body 1, the inner clamping sleeve 204 is movably sleeved on the outer wall of the conical clamping block 202, and the inner clamping sleeve 204 is located inside the rotating sleeve 201.

[0024] When it is necessary to connect a pipe, insert the pipe into the port of the tee pipe body 1 and rest it against the inside of the conical clamping block 202, then manually rotate the rotating sleeve 201, and the rotational movement of the rotating sleeve 201 is converted into axial movement of the inner clamping sleeve 204. The inner wall of the inner clamping sleeve 204 contacts the outer wall of the conical clamping block 202 and produces an extrusion effect. As the inner clamping sleeve 204 moves, the conical clamping block 202 contracts inward, so that it tightly clamps the inserted pipe, achieving reliable connection and fixation, and at the same time cooperating with the sealing ring 3 to further enhance the sealing effect.

[0025] The conical clamping block 202 is provided with a plurality of slots 203 in a ring shape. The inner wall of the inner clamping sleeve 204 is provided with an inclined surface 205 corresponding to the outer wall of the conical clamping block 202 .

[0026] The presence of the slot 203 gives the conical clamping block 202 a certain elastic deformation ability. When squeezed by the inner wall inclined surface 205 of the inner clamping sleeve 204, it can shrink and deform along the slot 203, thereby better fitting the outer wall of the pipe, increasing the contact area and friction, and improving the stability and reliability of clamping.

[0027] A support shaft 208 is fixedly connected to the port of the tee pipe body 1 . The support shaft 208 is located on the outer wall of the tapered clamping block 202 . A sliding hole 209 is opened inside the inner clamping sleeve 204 , and the support shaft 208 is located inside the sliding hole 209 .

[0028] The support shaft 208 provides guidance and support for the movement of the inner sleeve 204, ensuring that the inner sleeve 204 can move smoothly in a predetermined direction under the drive of the rotating sleeve 201 without deviation or shaking, thereby improving the working efficiency and reliability of the locking mechanism 2 and ensuring that the conical clamping block 202 can evenly contract and clamp the pipe.

[0029] An external thread 206 is formed on the outer wall of the inner clamping sleeve 204 , and an internal thread 207 is formed on the inner wall of the rotating sleeve 201 . The external thread 206 and the internal thread 207 engage with each other.

[0030] When the rotating sleeve 201 rotates, the rotational motion is converted into linear axial motion of the inner sleeve 204 through the engagement of the threads, which can accurately control the moving distance of the inner sleeve 204. At the same time, the self-locking property of the threads can also prevent the locking mechanism 2 from loosening.

[0031] The rear end of the rotating sleeve 201 is fixedly connected to an annular movable ring 210 . An annular movable groove 211 is formed on the outer wall of the tee pipe body 1 . The annular movable ring 210 is movably installed inside the annular movable groove 211 .

[0032] When in use, the annular movable ring 210 cooperates with the annular movable groove 211 to limit the axial displacement of the rotating sleeve 201, so that it can only rotate around the port axis of the tee pipe body 1, ensuring the stability and reliability of the rotating sleeve 201 during operation, preventing it from offsetting or falling off during rotation, and ensuring that the locking mechanism 2 can operate normally.

[0033] A conical block 4 is fixedly connected to the inner wall of the tee pipe body 1 , and the conical block 4 is located at the intersection of the three pipe fittings of the tee pipe body 1 .

[0034] When fluid flows through the tee body 1 and passes through the intersection of the three pipes, the change in pipe direction can generate significant impact and turbulence. The presence of the tapered block 4 alters the fluid's flow path, gradually redirecting the fluid under its guidance. This reduces the fluid's velocity and impact, minimizing erosion and wear on the inner wall of the tee body 1. This improves the body's resistance to fluid impact and extends the tee's service life.

[0035] The tee pipe body 1 is composed of a polytetrafluoroethylene layer 101 and a stainless steel layer 102 . The polytetrafluoroethylene layer 101 is located on the outer layer of the tee pipe body 1 , and the stainless steel layer 102 is located on the inner layer of the polytetrafluoroethylene layer 101 .

[0036] The polytetrafluoroethylene layer 101 has an extremely low friction coefficient, excellent chemical stability and antioxidant properties. During the use of the pipeline, its outer layer can effectively resist the erosion of corrosive substances such as oxygen, acids and alkalis in the external environment, and reduce material aging and damage caused by oxidation and corrosion; the stainless steel layer 102, with its high strength and high toughness material properties, provides a solid structural support for the tee pipe body 1, can withstand high internal pressure and external loads, maintain stable performance under harsh working conditions such as high temperature and high pressure, prevent the tee pipe body 1 from deformation, rupture and other failures, and ensure the safe and stable operation of the pipeline system.

[0037] Working Principle: During installation, first insert the pipe to be connected into the port of the tee body 1, so that it contacts the inner wall of the tapered clamping block 202. Then rotate the rotating sleeve 201. Through the transmission of the internal thread 207 and the external thread 206, the inner clamping sleeve 204 moves along the support shaft 208 within the sliding hole 209. The inclined surface 205 of its inner wall causes the tapered clamping block 202 to contract and tightly clamp the pipe. At the same time, the sealing ring 3 seals the connection part, completing the connection operation.

[0038] During the operation of the pipeline, the polytetrafluoroethylene layer 101 resists external erosion, the stainless steel layer 102 bears pressure and load, and the conical block 4 reduces fluid impact.

[0039] When the pipe needs to be removed, the rotating sleeve 201 is rotated in the reverse direction to move the inner clamping sleeve 204 in the reverse direction, and the conical clamping block 202 releases the pipe, so that the pipe can be taken out.

[0040] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel-lined polytetrafluoroethylene tee pipe with oxidation-resistant strength seal, comprising a tee pipe body (1), characterized in that: The outer walls of the three ports of the three-way pipe body (1) are all installed with locking mechanisms (2), and the three ports of the three-way pipe body (1) are all fixedly installed with sealing rings (3); The locking mechanism (2) comprises a rotating sleeve (201), a conical clamping block (202) and an inner clamping sleeve (204), wherein the rotating sleeve (201) has three outer walls movably mounted on the three ports of the three-way pipe body (1) in sequence, the conical clamping block (202) has three front ends fixedly connected to the three ports of the three-way pipe body (1), the inner clamping sleeve (204) is movably sleeved on the outer wall of the conical clamping block (202), and the inner clamping sleeve (204) is located inside the rotating sleeve (201).

2. The oxidation-resistant, strong-sealed steel-lined polytetrafluoroethylene tee pipe according to claim 1, characterized in that: The conical clamping block (202) is provided with a groove (203) therein, wherein a plurality of the grooves (203) are provided in an annular shape inside the conical clamping block (202), and the inner wall of the inner clamping sleeve (204) is provided with an inclined surface (205) corresponding to the outer wall of the conical clamping block (202).

3. The oxidation-resistant, strong-sealed steel-lined polytetrafluoroethylene tee pipe according to claim 1, characterized in that: The port of the three-way pipe body (1) is fixedly connected to a support shaft (208), and the support shaft (208) is located on the outer wall of the conical clamping block (202). A sliding hole (209) is opened inside the inner clamping sleeve (204), and the support shaft (208) is located inside the sliding hole (209).

4. The oxidation-resistant, strong-sealed steel-lined polytetrafluoroethylene tee pipe according to claim 1, characterized in that: An external thread (206) is provided on the outer wall of the inner clamping sleeve (204), and an internal thread (207) is provided on the inner wall of the rotating sleeve (201), wherein the external thread (206) and the internal thread (207) engage with each other.

5. The oxidation-resistant, strong-sealed steel-lined polytetrafluoroethylene tee pipe according to claim 1, characterized in that: The rear end of the rotating sleeve (201) is fixedly connected to an annular movable ring (210), the outer wall of the three-way pipe body (1) is provided with an annular movable groove (211), and the annular movable ring (210) is movably mounted inside the annular movable groove (211).

6. The oxidation-resistant, strong-sealed steel-lined polytetrafluoroethylene tee pipe according to claim 1, characterized in that: A conical block (4) is fixedly connected to the inner wall of the tee pipe body (1), and the conical block (4) is located at the intersection of the three pipe fittings of the tee pipe body (1).

7. The oxidation-resistant, strong-sealed steel-lined polytetrafluoroethylene tee pipe according to claim 1, characterized in that: The three-way pipe body (1) is composed of a polytetrafluoroethylene layer (101) and a stainless steel layer (102), wherein the polytetrafluoroethylene layer (101) is located on the outer layer of the three-way pipe body (1), and the stainless steel layer (102) is located on the inner layer of the polytetrafluoroethylene layer (101).

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