Pentatricopeptide repeats (PPR) leakproof and anti-falling

Abstract

The utility model relates to the technical field of pipe fittings, and provides a PPR (pentatricopeptide repeats) leakproof and anti-drop pipe fitting, the pipe fitting comprises a nylon material (10), a PPR inner core injection molding part (11), an external thread insert (12), an internal thread insert (13) and a guide pipe (14), a nylon connecting piece is in reliable threaded connection with the inserts, through a well-designed silica gel ring sealing structure, it is ensured that the joint is tight and gapless, fluid leakage is effectively prevented, and the service life of the pipe fitting is prolonged. High sealing performance can be kept no matter in a water pressure environment or an air pressure environment, so that pipe fittings are firmly connected and are not easy to fall off, long-term stable operation of a pipeline system is ensured, and water resource waste and maintenance cost are reduced; in the connecting process, the nylon connecting piece and the insert are tightly matched through an accurately-matched thread structure, strong mechanical meshing force is provided, during installation, through tightening operation with specified torque, connection is more stable, looseness caused by external factors such as vibration and water flow impact is effectively prevented, stability can be kept in long-term use, and the service life of the connector is prolonged. And the risk that the pipe fitting falls off is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of pipe fittings technology, and in particular to a PPR anti-leakage and anti-detachment pipe fitting. Background Technology

[0002] Piping systems are widely used in construction, municipal engineering, and industry to transport various fluid media, with PPR pipes being particularly favored due to their excellent overall performance. However, traditional PPR pipe fittings have gradually revealed some problems in practical use, prompting the development of PPR leak-proof and detachment-proof fitting technology. With increasing societal awareness of water resource protection and rising requirements for the safety and stability of piping systems in buildings and industrial facilities, ordinary PPR pipe fittings are prone to leaks and detachments at connection points, failing to meet increasingly stringent usage demands. Leaks not only waste water resources but can also lead to a series of problems such as dampness inside buildings and damage to interior finishes, increasing maintenance costs and disrupting users' lives and production activities. Fitting detachment can cause fluid transport interruptions, affecting normal production operations and, in some cases, even leading to safety accidents.

[0003] Furthermore, the quality of pipe fittings from different suppliers in the market varies greatly, lacking unified high standards and specifications. Some pipe fittings have defects in dimensional accuracy, sealing performance, and connection reliability, making reliable interchangeability and system integration difficult. Meanwhile, with the increasing complexity of pipeline system application environments, higher challenges are being placed on the corrosion resistance, high-temperature resistance, and pressure resistance of pipe fittings. Against this backdrop, developing a PPR pipe fitting that can effectively solve the problems of leakage and detachment prevention, while possessing high reliability, high quality, and wide applicability, has become an urgent need for industry development. Therefore, a PPR leak-proof and detachment-proof pipe fitting is proposed, which prevents detachment by designing different connectors for the upper and lower parts of the fitting. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a PPR anti-leakage and anti-detachment pipe fitting, which more accurately solves the problem of water leakage and detachment that easily occur at the connection points of ordinary PPR pipe fittings.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model proposes a PPR leak-proof and anti-detachment pipe fitting. The pipe fitting includes nylon material, a PPR inner core injection molded part, an outer thread insert, an inner thread insert, and a conduit. The PPR inner core injection molded part is located at the innermost part. Above the PPR inner core injection molded part is the outer thread insert, and below the PPR inner core injection molded part are the inner thread insert and the conduit. The outer thread insert is connected to a second nylon connector, and the inner thread insert is connected to a first nylon connector.

[0007] Furthermore, the second nylon connector has an internal nylon thread and an external nylon thread insert that are movably connected.

[0008] Furthermore, the first nylon connector is provided with an outer nylon thread and an inner nylon thread insert that are movably connected.

[0009] Furthermore, silicone rings are provided at the connection points between the first nylon connector and the inner thread insert, and at the connection points between the second nylon connector and the outer thread insert.

[0010] Furthermore, the silicone ring has an inner diameter of 20mm and a wire diameter of 1.2mm, and the silicone ring fits tightly with the inner and outer nylon filaments.

[0011] Furthermore, the inner diameter of the PPR inner core injection molded part is 32±0.5mm, which matches the inner diameter of the conduit.

[0012] Furthermore, the conduit is located at the center of the outer wire insert, and nylon material is fixedly installed on the outside of the outer wire insert and the inner wire insert.

[0013] Furthermore, the outer diameter of the outer wire insert fits tightly with the nylon material, and the surface of the outer wire insert is nickel-plated.

[0014] Furthermore, the outer diameter of the inner wire insert is adapted to the nylon material, and it is provided with a slot for tight connection. The surface of the inner wire insert is nickel-plated.

[0015] The beneficial effects of this utility model are:

[0016] 1. The reliable threaded connection between the nylon connector and the insert proposed in this utility model, through a carefully designed silicone ring sealing structure, ensures a tight and gapless connection, effectively preventing fluid leakage. It can maintain a high degree of sealing performance under both water pressure and air pressure environments, making the pipe connection firm and not easy to fall off, ensuring the long-term stable operation of the pipeline system, and reducing water waste and maintenance costs.

[0017] 2. During the connection process, the nylon connector and insert are tightly fitted by a precisely matched thread structure, providing a strong mechanical interlocking force. During installation, the connection is made more stable by tightening with the specified torque, effectively preventing loosening caused by external factors such as vibration and water flow impact. It can remain stable in long-term use and greatly reduce the risk of pipe fittings falling off. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the cross-sectional structure of the main body of the PPR leak-proof and anti-detachment pipe fitting of this utility model;

[0019] Figure 2 This is a schematic diagram of the bottom structure of the main body of the PPR leak-proof and anti-detachment pipe fitting of this utility model;

[0020] Figure 3 This is a schematic diagram of the first nylon connector of the PPR leak-proof and anti-detachment pipe fitting of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the first nylon connector of the PPR leak-proof and anti-detachment pipe fitting of this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the second nylon connector of the PPR leak-proof and anti-detachment pipe fitting of this utility model.

[0023] The attached figures are labeled as follows:

[0024] 10 Nylon material; 11 PPR inner core injection molded part; 12 Outer thread insert; 13 Inner thread insert; 14 Guiding tube; 15 First nylon connector; 16 Nylon outer thread; 17 Second nylon connector; 18 Nylon inner thread. Detailed Implementation

[0025] To more clearly and completely illustrate the technical solution of this utility model, the following description is provided in conjunction with the accompanying drawings.

[0026] Please refer to Figure 1 - Figure 5 This utility model proposes a PPR leak-proof and anti-detachment pipe fitting. During use, when assembling the pipe fitting, silicone rings are installed at the connection between the first nylon connector 15 and the inner thread insert 13, and at the connection between the second nylon connector 17 and the outer thread insert 12. During installation, ensure that the surface of the silicone ring is clean and free of impurities and oil. Gently place the silicone ring on the corresponding connection part so that it fits flat against the sealing surface without twisting or folding. The installation position of the silicone ring must be accurate to ensure that it can play an effective sealing role after the pipe fitting is connected.

[0027] The silicone ring has an inner diameter of 20mm and a wire diameter of 1.2mm. It fits tightly with the nylon inner and outer threads (18mm and 18mm) to provide a seal and prevent fluid leakage. Made of black silicone, the ring possesses good elasticity, aging resistance, and chemical corrosion resistance, maintaining its sealing performance under varying temperature and pressure conditions. The silicone ring should have a smooth, flat appearance, free from damage and cracks to ensure a proper seal. Its chemical content limits comply with the latest version of Q / HRO603001 to ensure safe use.

[0028] The first nylon connector 15 has an external nylon thread 16 that is movably connected to the internal thread insert 13. The connection is reliable and adjustable through a threaded fit. The size and specifications of the external nylon thread 16 match those of the internal thread insert 13 to ensure a tight connection and prevent loosening.

[0029] The second nylon connector 17 has an internal nylon thread 18 that is movably connected to the external thread insert 12, and the connection is also achieved through threaded engagement. The dimensions and parameters of the internal nylon thread 18 meet the connection requirements of the external thread insert 12, ensuring the stability of the connection.

[0030] The inner diameter of the PPR inner core injection molded part 11 is 32±0.5mm to ensure a match with the inner diameter of the conduit 14, guaranteeing smooth fluid flow. The height is determined based on the overall pipe fitting structure requirements, optimizing space utilization while meeting functional needs. Made of PPR material, it possesses excellent corrosion resistance, high-temperature resistance, and hygienic properties, making it suitable for various fluid transport applications.

[0031] The external thread specification of the external thread insert 12 conforms to GB / T7306, ensuring universality of connection with other pipe fittings or equipment. The external thread insert 12 fits tightly with the nylon material 10, ensuring the stability of the overall structure. HPb59-3 copper alloy is selected, possessing good machinability and mechanical strength, capable of withstanding certain pressure and torque. The surface is nickel-plated with a GB / T12322-Cu / Ni10 electroplating layer, which is bright, uniform, and firm, preventing corrosion and improving the service life of the pipe fitting. The nickel plating layer must be free from defects such as pitting, blistering, cracks, localized missed plating, mottling, or discoloration to ensure appearance quality and protective performance.

[0032] The internal thread of the internal thread insert 13 conforms to the requirements of GB / T7307, and fits tightly with the nylon material 10 and the PPR inner core injection molded part 11 to ensure the sealing of the connection. The outer diameter is designed according to the fitting requirements with the nylon material 10 to ensure a firm installation. It is also made of HPb59-3 copper alloy to ensure that its performance matches that of the external thread insert 12, and undergoes the same nickel plating treatment as the external thread insert 12 to meet the requirements for corrosion resistance and appearance quality.

[0033] The dimensions of nylon material 10 are determined based on the overall pipe structure to ensure that it can firmly wrap the outer thread insert 12 and the inner thread insert 13, and tightly bond with the PPR inner core injection molded part 11. A suitable nylon material is selected, possessing good mechanical properties, chemical corrosion resistance, and dimensional stability, and capable of withstanding certain pressure and environmental influences.

[0034] By designing reliable threaded connections between internal and external threaded inserts and nylon connectors, combined with rigorous torque control and pull-out tests, the pipe fittings are securely connected, preventing detachment and ensuring long-term stable operation of the pipeline system. For leak prevention, a carefully designed silicone ring sealing structure ensures a tight, gapless connection, effectively preventing fluid leakage. It maintains a high degree of sealing performance under both water and air pressure conditions, reducing water waste and maintenance costs. The high-quality materials used, such as the PPR inner core injection molded part 11, nylon material 10, and nickel-plated inserts, possess excellent corrosion resistance, high-temperature resistance, and hygienic properties, extending the service life of the pipe fittings and ensuring safe and hygienic fluid transportation. During connection, the nylon connectors and inserts fit tightly together through a precisely matched thread structure, providing strong mechanical interlocking force. During installation, tightening with the specified torque further secures the connection, effectively preventing loosening caused by external factors such as vibration and water flow impact. This connection method remains stable during long-term use, significantly reducing the risk of pipe fitting detachment. Furthermore, the nylon material itself has a certain degree of flexibility and wear resistance, which can buffer external forces, further enhancing the reliability of the connection. Even in complex piping systems, facing tensile and compressive forces from different directions, it can ensure that the pipe fittings are always firmly connected, guaranteeing the safe operation of the entire piping system and reducing maintenance costs and safety hazards caused by pipe fitting detachment.

[0035] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A PPR leak-proof and anti-drop pipe fitting, characterized in that: The pipe comprises nylon material (10), PPR inner core injection molding (11), outer wire insert (12), inner wire insert (13) and catheter (14), the PPR inner core injection molding (11) is located in the innermost part, the upper of PPR inner core injection molding (11) is outer wire insert (12), the lower of PPR inner core injection molding (11) is inner wire insert (13) and catheter (14), the outer wire insert (12) is connected with second nylon connecting piece (17), the inner wire insert (13) is connected with first nylon connecting piece (15).

2. The PPR leak-proof and pull-proof pipe fitting according to claim 1, characterized in that: The inside of the second nylon connecting piece (17) is provided with nylon inner wire (18) and outer wire insert (12) movable connection.

3. The PPR leak-proof and pull-proof pipe fitting according to claim 1, characterized in that: The outside of the first nylon connecting piece (15) is provided with nylon outer wire (16) and inner wire insert (13) movable connection.

4. The PPR leak-proof and pull-proof pipe fitting according to claim 1, characterized in that: The connecting place of the first nylon connecting piece (15) and inner wire insert (13) and the connecting place of the second nylon connecting piece (17) and outer wire insert (12) are all provided with silica gel ring.

5. The PPR leak-proof and pull-proof pipe fitting according to claim 4, characterized in that: The inner diameter of the silica gel ring is 20mm, the wire diameter is 1.2mm, the silica gel ring is matched closely with nylon inner wire (18) and nylon outer wire (16).

6. The PPR leak-proof and pull-proof pipe fitting according to claim 1, characterized in that: The inner diameter of the PPR inner core injection molding (11) is 32±0.5mm, which matches with the inner diameter of catheter (14).

7. The PPR leak-proof and pull-proof pipe fitting according to claim 1, characterized in that: The catheter (14) is located in the center position of outer wire insert (12), the outer wire insert (12) and inner wire insert (13) are fixedly installed with nylon material (10) outside.

8. The PPR leak-proof and pull-proof pipe fitting according to claim 1, characterized in that: The outer diameter of the outer wire insert (12) is matched closely with nylon material (10), the surface of outer wire insert (12) is plated with nickel.

9. The PPR leak-proof and pull-proof pipe fitting according to claim 1, characterized in that: The outer diameter of the inner wire insert (13) is matched with nylon material (10), and is provided with clamping groove close connection, the surface of inner wire insert (13) is plated with nickel.

Images