Flared pfa integrated fitting

Abstract

The utility model discloses a flared PFA integrated joint belongs to sealed joint technical field, including the joint pipe, the joint pipe one end is the butt welding end, and the rest end portion is flared end, the butt welding end welds the joint pipe end portion with outside, the flared pipe is equipped with the flared end of joint pipe, the flared pipe is located the outside of joint pipe, and forms the gap between with joint pipe, be equipped with the external thread convex on the flared pipe, the nut, the nut is located the outside of flared pipe, and with external thread convex cooperation, along flared pipe length direction movement, to reduce the gap between flared pipe with joint pipe. The utility model discloses a flared PFA integrated joint one end is flared structure, and the other end is butt welding type structure, it possesses simple structure, adaptability is strong, sealed reliable and the characteristics of convenient dismounting, when the joint pipe is matched with the flared pipe, can carry out effective sealing to its connecting point.

Description

Technical Field

[0001] This utility model belongs to the field of sealing joint technology, and particularly relates to a flared PFA integrated joint. Background Technology

[0002] In semiconductor electronic specialty gas delivery, pharmaceutical high-purity liquid transport, and chemical highly corrosive media pipeline systems, PFA material has become the core material of choice for pipelines and fittings due to its excellent chemical inertness (resistant to most acids and alkalis), low exudation (meeting ultra-high cleanliness standards), and high temperature resistance (long-term operating temperature -200℃ to 260℃). In such systems, pipeline connections need to adapt to different operating conditions: some scenarios (such as temporary maintenance interfaces at the equipment end) require easy disassembly and assembly, while others (such as long-distance fixed pipeline sections) require permanent sealing to avoid leakage risks.

[0003] In practical use, existing PFA fittings cannot simultaneously meet the dual requirements of convenient disassembly and permanent sealing. Traditional PFA fittings are mostly "single-type connection structures," either with flared ends (relying on compression fittings for sealing, suitable for disassembly) or butt-welded ends (fixed by hot-melt welding, suitable for permanent sealing). When the piping system needs to simultaneously meet the requirements of "temporary disassembly at one end and permanent fixation at the other end," additional flared fittings are required. After adding flared fittings to the pipeline, multiple sealing points are added. The more sealing points a PFA fitting has, the higher the probability of leakage due to creep and vibration, thus increasing the risk of leakage. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art by providing a flared PFA integrated connector to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a flared PFA integrated connector, comprising...

[0006] A connector tube, one end of which is a butt-welding end and the other ends are flared ends, wherein the butt-welding end welds the ends of the connector tube to the outside.

[0007] A flared tube is fitted onto the flared end of the connector tube. The flared tube is located outside the connector tube and forms a gap with the connector tube. The flared tube is provided with an external thread protrusion.

[0008] A nut, located outside the flared tube and engaging with the external threaded protrusion, moves along the length of the flared tube to reduce the gap between the flared tube and the connector tube.

[0009] In a preferred embodiment of this utility model, the connector pipe is a two-way pipe or a three-way pipe to form one or two flared ends.

[0010] In a preferred embodiment of this utility model, the flared tube is a flexible tube, and the nut squeezes the flared tube so that the inner wall of the flared tube fits against the outer wall of the connector tube.

[0011] In a preferred embodiment of this utility model, the nut is provided with an internal thread, which engages with the external thread protrusion to move the nut along the length direction of the flared tube.

[0012] In a preferred embodiment of this invention, the end length of the flared tube is greater than the end length of the connector tube.

[0013] In a preferred embodiment of this utility model, the nut is provided with several mounting protrusions on its exterior.

[0014] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0015] The flared PFA integrated connector of this utility model has a flared structure at one end and a butt-welded structure at the other end. It features a simple structure, strong adaptability, reliable sealing, and convenient assembly and disassembly. When the connector tube is paired with the flared tube, it can effectively seal the connection point, preventing leakage of the PFA connector due to the increased number of connection points and effectively reducing the risk of leakage. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0018] Figure 2 This is a top view of a preferred embodiment of the present invention;

[0019] Figure 3 for Figure 2 Sectional view of plane AA;

[0020] Figure 4 This is a schematic diagram of the structure of the flared tube according to a preferred embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the nut in a preferred embodiment of the present invention;

[0022] In the diagram: 10, connector pipe; 11, butt welding end; 12, flared end; 20, flared pipe; 21, external thread protrusion; 30, nut; 31, internal thread; 32, mounting protrusion. Detailed Implementation

[0023] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0024] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] This embodiment provides a flared PFA integrated connector. One end of the flared PFA integrated connector has a flared structure, and the other end has a butt-welded structure. It has the characteristics of simple structure, strong adaptability, reliable sealing and convenient disassembly and assembly. When the connector tube 10 is paired with the flared tube 20, it can effectively seal its connection point, avoid leakage of the PFA connector due to the increase of connection points, and effectively reduce the risk of leakage.

[0026] Combination Figures 1 to 5 As shown, the flared PFA integrated connector of this embodiment includes a connector tube 10, a flared tube 20, and a nut 30. One end of the connector tube 10 is a butt-welding end 11, and the other end is a flared end 12. The butt-welding end 11 welds the end of the connector tube 10 to the outside. The flared end 12 is formed by connecting the connector tube 10 and the flared tube 20. The nut 30 can squeeze the flared end 12 to form a sealed cavity at the connection point between the connector tube 10 and the flared tube 20 to meet the usage requirements of the connector tube 10.

[0027] In this embodiment, the flared tube 20 is fitted onto the flared end 12 of the connector tube 10. The flared tube 20 is located outside the connector tube 10 and forms a gap with it. The flared tube 20 is provided with an external threaded protrusion 21. The nut 30 is located outside the flared tube 20 and engages with the external threaded protrusion 21. It moves along the length of the flared tube 20 to reduce the gap between the flared tube 20 and the connector tube 10. After the flared tube 20 is fitted, the nut 30 is rotated, and the nut 30 engages with the external threaded protrusion 21. The external threaded protrusion 21 squeezes the flared tube 20 to eliminate the gap between the flared tube 20 and the connector tube 10, effectively improving the sealing performance of the connector tube 10. This meets the pipeline connection requirements of the connector tube 10 in the fields of semiconductors, pharmaceuticals, and chemicals, where one end is temporarily disassembled and the other end is permanently fixed. It also takes into account the convenience of disassembly and assembly and the durability of sealing.

[0028] Specifically, in this embodiment, the connector pipe 10 is a two-way pipe or a three-way pipe to form one or two flared ends 12. When the connector pipe 10 is a two-way pipe, it is used as a two-way valve. When the connector pipe 10 is a three-way pipe, it is used as a three-way valve.

[0029] Combination Figure 1 , Figure 3 as well as Figure 4 As shown, in this embodiment, the flared tube 20 is a flexible tube. After the nut 30 squeezes the flared tube 20, the inner wall of the flared tube 20 fits against the outer wall of the connector tube 10. The nut 30 is provided with an internal thread 31, which engages with the external thread protrusion 21 to move the nut 30 along the length of the flared tube 20. When the nut 30 rotates, the internal thread 31 and the external thread protrusion 21 form a threaded engagement, causing the nut 30 to move along the length of the flared tube 20 and squeeze the flared tube 20.

[0030] In this embodiment, the end length of the flared tube 20 is greater than the end length of the connector tube 10 to meet the normal use of the connector tube 10.

[0031] Furthermore, the nut 30 in this embodiment is provided with a plurality of mounting protrusions 32 on its exterior so that the connector tube 10 can be installed and used.

[0032] In practical use, the flared PFA integrated connector of this embodiment has a flared structure at one end and a butt-welded structure at the other end. It features a simple structure, strong adaptability, reliable sealing, and convenient assembly and disassembly. When the connector tube 10 is paired with the flared tube 20, it can effectively seal the connection point, preventing leakage of the PFA connector due to the increase in connection points and effectively reducing the risk of leakage.

[0033] While the present invention has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present invention. That is, the methods, systems, or devices discussed above are merely examples. Various configurations can be appropriately omitted, substituted, or added to various processes or components. For example, in alternative configurations, methods can be performed in a different order than described, and / or various stages can be added, omitted, and / or combined. Moreover, features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configuration can be combined in a similar manner. Furthermore, as technology develops, many elements are merely examples and do not limit the scope of this disclosure or the claims.

[0034] Specific details are provided in the specification to offer a thorough understanding of exemplary configurations, including implementations. However, configurations can be practiced without these specific details; for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configuration. This description provides only exemplary configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.

[0035] Furthermore, although each operation can be described as a sequential process, many operations can be executed in parallel or simultaneously. Additionally, the order of operations can be rearranged. A process may have additional steps. Moreover, examples of methods can be implemented using hardware, software, firmware, middleware, code, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments used to perform the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor.

[0036] In summary, the above detailed description is intended to be exemplary and not restrictive, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of this invention. These embodiments should be understood as illustrative only and not as limiting the scope of protection of this invention. After reading the description of this invention, those skilled in the art can make various alterations or modifications to it, and these equivalent changes and modifications also fall within the scope defined by the claims of this invention.

Claims

1. A flared PFA integrated connector, characterized in that, include A connector tube (10) has a butt-welding end (11) at one end and a flared end (12) at the other end. The butt-welding end (11) welds the end of the connector tube (10) to the outside. A flared tube (20) is sleeved on the flared end (12) of the connector tube (10). The flared tube (20) is located outside the connector tube (10) and forms a gap with the connector tube (10). The flared tube (20) is provided with an external thread protrusion (21). Nut (30), the nut (30) is located outside the flared tube (20) and engages with the external thread protrusion (21), and moves along the length of the flared tube (20) to reduce the gap between the flared tube (20) and the connector tube (10).

2. The flared PFA integrated connector according to claim 1, characterized in that, The connector pipe (10) is a two-way pipe or a three-way pipe to form one or two of the flared ends (12).

3. The flared PFA integrated connector according to claim 1, characterized in that, The flared tube (20) is a flexible tube. After the nut (30) squeezes the flared tube (20), the inner wall of the flared tube (20) fits against the outer wall of the connector tube (10).

4. The flared PFA integrated connector according to claim 3, characterized in that, The nut (30) has an internal thread (31) which engages with the external thread protrusion (21) to move the nut (30) along the length of the flared tube (20).

5. The flared PFA integrated connector according to claim 1, characterized in that, The length of the end of the flared tube (20) is greater than the length of the end of the connector tube (10).

6. The flared PFA integrated connector according to claim 1, characterized in that, The nut (30) has several mounting protrusions (32) on its outside.

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