Compression-resistant and oxidation-resistant PPR (polypropylene random copolymer) pipe fitting
By adding sealing rings and curved sleeves at the ends of PPR pipe fittings, combined with antioxidant, wear-resistant and compressive coatings, the problem of insufficient sealing of pipe connections is solved, and a firmer and more durable pipe fitting connection is achieved.
Patent Information
- Application Number
- CN202420968189.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing PPR pipe fittings cannot ensure the sealing and firmness of the connections after being connected to other pipes. Long-term use is prone to leakage, affecting the long-term use effect of the pipe fittings.
By adding main and secondary seals at the ends of the main and secondary tubes, and installing sealing curved sleeves at both ends of the main tubes, the outer layer is coated with antioxidant coating and wear-resistant coating and compression-resistant layer, combined Threaded and limiting rods are designed to enhance the sealing and compressive resistance of pipe connections.
It effectively improves the sealing firmness of pipeline connections, avoids leakage problems during long-term use, and enhances the oxidation and compression performance of pipe fittings, extending service life.
Smart Images
Figure CN222142381U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe fittings, in particular to a pressure-resistant and oxidation-resistant PPR pipe fitting. Background Art
[0002] PPR pipe is called type III polypropylene pipe or random copolymer polypropylene pipe or PPR pipe. It has the advantages of energy saving and material saving, corrosion resistance, smooth inner wall without scaling, simple construction and maintenance, and long service life. It is widely used in construction, municipal, industrial and agricultural fields such as building water supply and drainage, urban and rural water supply and drainage, industrial fluid transportation and agricultural irrigation.
[0003] For example, the Chinese utility model provides "a wear-resistant and anti-oxidation composite ppr pipe fitting with good effect" with patent number: CN218510398 U, which includes a main pipe, a sub-pipe connected to one side of the surface of the main pipe, a connector connected to one end of the sub-pipe, and connecting holes are provided at both ends of the surface of the main pipe and the surface of the connector. The utility model overcomes the shortcomings of the prior art. By providing anti-slip grooves, connecting holes, springs and locks, the staff can pull the lock upwards so that the lock stretches the spring and disengages from the connecting holes, and then the connecting pipe can be inserted into the main pipe or the sub-pipe. In addition, by providing anti-slip grooves inside the main pipe and the sub-pipe, the friction between the connecting pipes is increased. After the through hole on the surface of the connecting pipe is connected to the connecting through hole on the surface of the main pipe or the sub-pipe, the lock can be loosened, so that the spring will recover its elasticity after being stretched and drive the lock to reset, so that the lock can lock and fix the connecting pipes, thereby improving the connection strength of the pipe fitting.
[0004] Although the above documents solve the problems of wear resistance and oxidation resistance of pipe fittings, the above pipe fittings cannot guarantee the sealing and firmness of the joints after being connected with other pipes. The joints are prone to leakage after long-term use, affecting the long-term use effect of the pipe fittings. Utility Model Content
[0005] The utility model aims to provide a pressure-resistant and oxidation-resistant PPR pipe fitting, which has the advantages of enhancing the firmness and sealing of pipeline connection.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure-resistant and oxidation-resistant PPR pipe fitting, comprising a main pipe, the front side of the main pipe is connected to a secondary pipe, the left and right ends of the main pipe are fixedly installed with fixing frames, the front and rear sides of the fixing frame are provided with turntables, a threaded rod is fixedly installed on the inner side of the turntable, the inner end of the threaded rod extends through and extends to the inside of the fixing frame and is rotatably installed with a sealing arc sleeve, the outside of the main pipe is coated with an anti-oxidation coating, the inner wall of the main pipe is coated with a wear-resistant coating, and the outside of the wear-resistant coating is coated with a pressure-resistant layer.
[0007] As a preferred solution, main sealing rings are bonded to the inside of both left and right ends of the main pipe, and a secondary sealing ring is arranged on the outside of the secondary pipe. The diameter of the secondary sealing ring is the same as the inner diameter of the secondary pipe.
[0008] As a preferred solution, limit rods are fixedly mounted on both upper and lower ends of the outer side of the sealing arc sleeve, and the outer ends of the limit rods extend through and extend to the outside of the fixing frame.
[0009] As a preferred solution, through slots are provided on both the front and rear sides of the fixing frame, and one end of the limiting rod is located inside the through slot.
[0010] As a preferred solution, a thread groove is provided in the middle of both the front and rear sides of the fixing frame, and one end of the threaded rod is located inside the thread groove.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] 1. The utility model can enhance the sealing firmness after connection with the pipeline by adding main sealing rings and auxiliary sealing rings at the ends of the main pipe and the auxiliary pipe, and the sealing arc sleeves at both ends of the main pipe can further reinforce the outside of the pipeline to avoid shaking and separation between the main pipe and the main pipe during long-term use. The anti-oxidation coating arranged on the outside of the main pipe can improve the external anti-oxidation performance, will not be affected by the external environment, and can also avoid damage caused by long-term exposure to ultraviolet rays. The internal wear-resistant coating and pressure-resistant layer make the inner wall have strong wear resistance. The inside of the pressure-resistant layer is composed of braided wires, which improves the overall pressure resistance and anti-deformation performance of the main pipe to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional diagram of the structure of the utility model;
[0014] Figure 2 This is a left view of the structure of the utility model;
[0015] Figure 3 It is a cross-sectional view of the local structure of the main pipe of the utility model.
[0016] In the figure: 1. main pipe; 2. auxiliary pipe; 3. main sealing ring; 4. auxiliary sealing ring; 5. fixing frame; 6. turntable; 7. threaded rod; 8. sealing arc sleeve; 9. limit rod; 10. anti-oxidation coating; 11. wear-resistant coating; 12. pressure-resistant layer. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1-3 The utility model discloses a pressure-resistant and oxidation-resistant PPR pipe fitting, comprising a main pipe 1, the front of the main pipe 1 is connected with a secondary pipe 2, both left and right ends of the main pipe 1 are fixedly installed with fixing frames 5, both front and rear sides of the fixing frame 5 are provided with turntables 6, a threaded rod 7 is fixedly installed on the inner side of the turntable 6, the inner end of the threaded rod 7 extends through and extends to the inside of the fixing frame 5 and is rotatably installed with a sealing arc sleeve 8, the outside of the main pipe 1 is coated with an anti-oxidation coating 10, the inner wall of the main pipe 1 is coated with a wear-resistant coating 11, and the outside of the wear-resistant coating 11 is coated with a pressure-resistant layer 12.
[0019] Through the above technical scheme, by adding the main sealing ring 3 and the auxiliary sealing ring 4 at the ends of the main pipe 1 and the auxiliary pipe 2, the sealing firmness after the connection with the pipeline can be strengthened, and the sealing arc sleeves 8 at both ends of the main pipe 1 can further reinforce the outside of the pipeline to avoid shaking and separation between the main pipe 1 during long-term use, and the anti-oxidation coating 10 arranged on the outside of the main pipe 1 can improve the external anti-oxidation performance, will not be affected by the external environment, and can also avoid damage caused by long-term exposure to ultraviolet rays, and the internal wear-resistant coating 11 and pressure-resistant layer 12 make the inner wall have strong wear resistance, and the inside of the pressure-resistant layer 12 is composed of braided wires, which improves the overall pressure resistance and anti-deformation performance of the main pipe 1 to a certain extent.
[0020] Main sealing rings 3 are bonded to the inside of both left and right ends of the main pipe 1 , and a secondary sealing ring 4 is arranged on the outside of the secondary pipe 2 . The diameter of the secondary sealing ring 4 is the same as the inner diameter of the secondary pipe 2 .
[0021] Through the above technical scheme, the main sealing ring 3 and the auxiliary sealing ring 4 can seal and reinforce the inside of the connection end of the main pipe 1 and the auxiliary pipe 2, and can enhance the overall firmness of the external pipe after connection to avoid leakage. Moreover, the main sealing ring 3 and the auxiliary sealing ring 4 are both made of waterproof rubber and have the ability to produce deformation.
[0022] Limit rods 9 are fixedly mounted on both upper and lower ends of the outer side of the sealing arc sleeve 8 , and the outer ends of the limit rods 9 extend through and extend to the outside of the fixing frame 5 .
[0023] Through the above technical solution, the moving direction of the sealing arc sleeve 8 can be limited by the limiting rod 9 to avoid rotation following the threaded rod 7.
[0024] Through slots are provided on both the front and rear sides of the fixing frame 5 , and one end of the limiting rod 9 is located inside the through slots.
[0025] Through the above technical solution, one end of the limiting rod 9 can be accommodated by the through groove, and the balance of the limiting rod 9 when moving is ensured.
[0026] A thread groove is provided in the middle of both the front and rear sides of the fixing frame 5 , and one end of the threaded rod 7 is located inside the thread groove.
[0027] Through the above technical solution, one end of the threaded rod 7 can be limited and supported by the threaded groove, and the rotation operation of the threaded rod 7 is convenient.
[0028] The working principle of the utility model is: when connecting to an external pipe, one of the pipes is connected to the internal thread of the auxiliary pipe 2 and is reinforced by the auxiliary sealing ring 4, and when the other pipes are connected to the end of the main pipe 1, one end of the pipe is first forcefully inserted into the interior of the main pipe 1 and the surface of the connecting end is reinforced by the main sealing ring 3, and then the threaded rod 7 is driven by the turntable 6 and the sealing arc sleeve 8 is driven to move so that it can be firmly stuck on the surface of the pipe to complete the fixation, avoiding shaking and separation from the main pipe 1 during long-term use, and the anti-oxidation coating 10 arranged on the outside of the main pipe 1 can improve the external anti-oxidation performance and will not be affected by the external environment, and the internal wear-resistant coating 11 and pressure-resistant layer 12 make the inner wall have strong wear resistance, and can also improve the overall pressure resistance and anti-deformation performance of the main pipe 1 to a certain extent.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A pressure-resistant and oxidation-resistant PPR pipe fitting, comprising a main pipe (1), characterized in that: The front side of the main pipe (1) is connected to the auxiliary pipe (2); the left and right ends of the main pipe (1) are fixedly mounted with fixing frames (5); the front and rear sides of the fixing frame (5) are provided with turntables (6); the inner side of the turntable (6) is fixedly mounted with a threaded rod (7); the inner end of the threaded rod (7) extends through and into the interior of the fixing frame (5) and is rotatably mounted with a sealing arc sleeve (8); the outside of the main pipe (1) is coated with an anti-oxidation coating (10); the inner wall of the main pipe (1) is coated with a wear-resistant coating (11); the outside of the wear-resistant coating (11) is coated with a pressure-resistant layer (12).
2. The pressure-resistant and oxidation-resistant PPR pipe fitting according to claim 1, characterized in that: Main sealing rings (3) are bonded to the inside of both left and right ends of the main pipe (1), and a secondary sealing ring (4) is arranged on the outside of the secondary pipe (2). The diameter of the secondary sealing ring (4) is the same as the inner diameter of the secondary pipe (2).
3. The pressure-resistant and oxidation-resistant PPR pipe fitting according to claim 1, characterized in that: Limit rods (9) are fixedly mounted on both upper and lower ends of the outer side of the sealing arc sleeve (8), and the outer ends of the limit rods (9) extend through and extend to the outside of the fixing frame (5).
4. A pressure-resistant and oxidation-resistant PPR pipe fitting according to claim 3, characterized in that: Through slots are provided on both the front and rear sides of the fixing frame (5), and one end of the limiting rod (9) is located inside the through slot.
5. The pressure-resistant and oxidation-resistant PPR pipe fitting according to claim 1, characterized in that: The fixing frame (5) has a thread groove in the middle of both the front and rear sides, and one end of the threaded rod (7) is located inside the thread groove.