A type of automotive nylon tubing

Abstract

This application belongs to the field of automotive piping technology, and particularly relates to a nylon piping system for automobiles, comprising: a nylon pipe body, including a first pipe body and a second pipe body; a connecting structure, including a main body, a first connector and a second connector disposed on the main body, the first connector and the second connector respectively cooperating with the first pipe body and the second pipe body; wherein, a connecting pipe connecting the first connector and the second connector is disposed within the main body, and a control valve controlling the opening and closing of the connecting pipe is also disposed on the main body. The beneficial effect of this application is that, by using the nylon pipe body in conjunction with the connecting structure, the two pipe bodies can be connected through the same connecting structure, eliminating the need to use multiple partition-type quick-connect connectors to pass through partition plates or connecting plates separately, reducing the number of connection nodes, and avoiding the cumbersome assembly problem caused by fixing multiple connectors separately.

Description

Technical Field

[0001] This application belongs to the field of automotive piping technology, and particularly relates to a nylon tubing for automobiles. Background Technology

[0002] Currently, in the automotive nylon tubing quick-connect fitting industry, the connection method for multi-pipe quick-connect fittings involves using multiple partitioned quick-connect fittings that pass through partition plates or connecting plates. After securing the quick-connect fittings with nuts, nylon tubing is assembled at the threaded end. The nylon tubing is assembled by tightening the nuts on the nylon tubing, causing the internal mating conical parts to fit tightly together, thereby achieving a seal at the connection.

[0003] However, the sealing effect of existing quick-connect structures still needs improvement. Sealing relying on the contact of conical parts presents numerous problems in practical applications. Tolerances in the manufacturing process of nylon tubing can lead to unstable clearances between the conical surfaces, making it difficult to form a consistently effective sealing interface. Inconsistencies in controlling the tightening of the nuts during assembly can cause uneven contact tightness between the conical surfaces. Over long-term use, vibration can gradually relax the stress at the contact points, eventually leading to leakage.

[0004] Meanwhile, continuous vibration and temperature changes during vehicle operation can cause relative slippage at the conical mating parts, compromising the integrity of the seal. Alternating temperature changes can also cause varying degrees of dimensional variations between the nylon tube and the conical parts, exacerbating fluctuations in the sealing gap. Furthermore, the creep characteristics of the nylon tube itself can lead to plastic deformation under long-term pressure, causing the sealing gap to widen and further weakening the sealing effect. Improvements are needed in these areas. Utility Model Content

[0005] The purpose of this application is to provide a nylon tubing for automobiles that can solve the above-mentioned problems.

[0006] The purpose of this application is to provide a nylon tubing for automobiles, comprising:

[0007] The nylon tube body includes a first tube body and a second tube body;

[0008] The connection structure includes a main body, a first connector and a second connector disposed on the main body, the first connector and the second connector respectively cooperating with the first pipe body and the second pipe body;

[0009] The main body is equipped with a connecting pipe that connects the first connector and the second connector, and the main body is also equipped with a control valve that controls the opening and closing of the connecting pipe.

[0010] The aforementioned automotive nylon tubing system, by comprising a first and second tubing body and a connection structure including a first connector, a second connector, a connecting pipe, and a control valve, allows the two tubing bodies to be connected via a single connection structure. This eliminates the need for multiple quick-connect fittings that pass through partition plates or connecting plates, reducing the number of connection points and avoiding the cumbersome assembly issues associated with separate fitting fixation. Furthermore, the control valve directly controls the flow of the connecting pipe, simplifying the tubing control method and reducing the overall leakage risk caused by the failure of multiple fitting seals. In addition, multiple first and second connectors can be installed on the main body, enabling simultaneous installation and control of multiple pipelines while ensuring a tight seal after installation.

[0011] Furthermore, the first connector is provided with an external thread, and a matching movable sleeve is provided at one end of the first tube body, with an internal thread on the inner wall of the movable sleeve.

[0012] By providing an external thread on the first connector and a movable sleeve with an internal thread at one end of the first pipe body, the first pipe body and the first connector are connected through threaded engagement. Compared to the existing sealing method that only requires tightening the nut on the nylon tube to bring the conical parts together, the threaded connection provides a more stable connection force, avoiding the problem of unstable sealing caused by uneven force when the conical surfaces are in contact. At the same time, the installation of the movable sleeve facilitates the assembly and disassembly of the first pipe body and the first connector, improving the convenience of the connection operation and reducing the impact of the assembly process on the sealing effect.

[0013] Furthermore: the outer diameter of the first tube body is smaller than the inner diameter of the first connector, and the first tube body is provided with a protrusion that contacts the inner wall of the first tube body, and a first sealing ring that mates with the movable sleeve is also provided on the protrusion.

[0014] The outer diameter of the first tube is smaller than the inner diameter of the first connector, and the first tube has a protrusion that contacts the inner wall of the first connector. The protrusion also has a first sealing ring that mates with the movable sleeve. In this structure, the protrusion contacts the inner wall of the first connector, increasing the contact area between the first tube and the first connector and reducing gap problems caused by assembly deviations. Simultaneously, the first sealing ring is pressed between the protrusion and the movable sleeve when the movable sleeve is tightened, forming an additional sealing barrier. This, combined with the fit clearance between the first tube and the first connector, forms a multi-layered sealing structure, effectively compensating for the fluctuations in fit clearance caused by manufacturing tolerances in existing conical seals. This enhances the reliability of the seal and reduces the risk of leakage due to stress relaxation at the sealing points under vibration environments.

[0015] Furthermore, the second connector includes:

[0016] The connector body includes a connector head that connects to the second pipe body and a welded collar that connects to the second connector, with an installation space formed between the connector head and the second pipe body;

[0017] The connecting piece is located on the outer wall of the second tube and is connected to the connector by threads.

[0018] A sealing assembly is installed within the installation space;

[0019] The second tube body is connected to the welding ring by welding.

[0020] In this application, the second connector includes a connector body, a mating part, and a sealing assembly. The connector body includes a connector head and a welding collar. The second pipe body is welded to the welding collar. The mating part is connected to the connector head via threads. The sealing assembly is installed within the installation space. The welded connection enables the second pipe body and the welding collar to form a stable integral structure, avoiding sealing failure caused by loosening between components in existing connection methods. The threaded engagement between the mating part and the connector head allows the sealing assembly to be pressed tightly within the installation space through tightening, ensuring close contact between the sealing assembly and the second pipe body and the connector head, thus improving sealing stability. The installation space provides an installation environment for the sealing assembly, preventing displacement of the sealing component due to external interference, further ensuring the sealing effect.

[0021] Furthermore, the sealing assembly includes a second sealing ring, a packing ring, and a third sealing ring spaced apart, and the connector body is provided with a push ring that contacts the third sealing ring.

[0022] The sealing assembly includes a second sealing ring, a packing ring, and a third sealing ring installed at intervals. A push ring on the joint body contacts the third sealing ring. The multiple, spaced sealing rings and packing ring form multiple independent sealing barriers, effectively dispersing sealing pressure and increasing sealing redundancy compared to a single sealing structure. When the mating parts are tightened, the push ring compresses the third sealing ring, thereby causing the packing ring and the second sealing ring to be stressed sequentially. This ensures that each sealing component tightly fits its corresponding contact surface, avoiding sealing failure caused by insufficient localized stress in existing sealing structures, thus effectively enhancing sealing stability under temperature changes and vibration environments.

[0023] Furthermore, the second tube body is also provided with a blocking ring to restrict the movement of the connector.

[0024] The second tube body is equipped with a retaining ring to limit the movement of the connector. The retaining ring can fix the position of the connector, prevent the connector from shifting excessively during assembly or under long-term vibration, ensure that the sealing assembly is always in a preset compression state, maintain stable sealing pressure, and prevent sealing gaps caused by loosening of the sealing assembly due to connector movement. This enhances the vibration resistance of the overall structure of the second connector and ensures the durability of the sealing effect.

[0025] The beneficial effects of this application are:

[0026] 1. By using the nylon tube body and the connecting structure, two tube bodies can be connected through the same connecting structure. This eliminates the need to use multiple quick-connect fittings that pass through the partition plate or connecting plate separately, reducing the number of connection nodes and avoiding the cumbersome assembly problems caused by fixing multiple fittings separately.

[0027] 2. When the movable sleeve is tightened, the first sealing ring is pressed between the protrusion and the movable sleeve, forming an additional sealing barrier. Combined with the fitting gap between the first tube body and the first connector, a multi-seal structure is formed, which improves the sealing reliability.

[0028] 3. When the mating parts are tightened, the push ring will squeeze the third sealing ring, which in turn will cause the packing ring and the second sealing ring to be stressed in sequence. This ensures that each sealing component can fit tightly against the corresponding contact surface, avoiding the sealing failure caused by insufficient local stress in the existing sealing structure, and enhancing the sealing stability under temperature changes and vibration environments. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a side view of the present invention;

[0031] Figure 3 yes Figure 2 A cross-sectional view along the AA direction;

[0032] Figure 4 yes Figure 3 Enlarged view of A in the middle;

[0033] Figure 5 yes Figure 3 A magnified view of B in the middle.

[0034] The reference numerals in the figure are as follows: 100, nylon tube body; 110, first tube body; 120, second tube body; 121, blocking ring; 200, main body; 300, first connector; 400, second connector; 410, connector body; 411, connector head; 412, welding collar; 413, installation space; 420, mating part; 430, sealing assembly; 431, second sealing ring; 432, packing ring; 433, third sealing ring; 434, push ring; 500, connecting pipe; 510, control valve; 600, movable sleeve; 700, protrusion; 710, first sealing ring. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0036] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0037] The nylon tubing for automobiles provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0038] Example 1:

[0039] like Figure 1 As shown in the figure, this application provides a nylon tubing for automobiles, comprising:

[0040] The nylon tube body 100 includes a first tube body 110 and a second tube body 120;

[0041] The connection structure includes a main body 200, a first connector 300 and a second connector 400 disposed on the main body 200, wherein the first connector 300 and the second connector 400 respectively cooperate with the first tube body 110 and the second tube body 120.

[0042] The main body 200 is provided with a connecting pipe 500 that connects the first connector 300 and the second connector 400, and the main body 200 is also provided with a control valve 510 that controls the opening and closing of the connecting pipe 500.

[0043] In some embodiments of this application, such as Figure 1 As shown, the aforementioned automotive nylon tubing utilizes a nylon tubing body 100 comprising a first tubing body 110 and a second tubing body 120. This, combined with a connection structure featuring a first connector 300, a second connector 400, a connecting pipe 500, and a control valve 510, allows for the connection of two tubing bodies through a single connection structure. This eliminates the need for multiple quick-connect fittings to pass through partition plates or connecting plates, reducing the number of connection points and avoiding the cumbersome assembly issues associated with separate fixing of multiple connectors. Furthermore, the control valve 510 directly controls the flow of the connecting pipe 500, simplifying the tubing control method and reducing the overall leakage risk caused by the failure of multiple connector seals. Additionally, multiple first connectors 300 and second connectors 400 can be installed on the body 200, enabling simultaneous installation and control of multiple pipelines while ensuring a tight seal after installation.

[0044] Example 2:

[0045] This application provides a nylon tubing for automobiles. In addition to the above-mentioned technical features, the nylon tubing for automobiles in this application also includes the following technical features.

[0046] As shown in the figure, the first connector 300 is provided with an external thread, and a matching movable sleeve 600 is provided on one end of the first tube body 110. The inner wall of the movable sleeve 600 is provided with an internal thread.

[0047] In this embodiment, by providing an external thread on the first connector 300 and a movable sleeve 600 with an internal thread at one end of the first tube 110, the first tube 110 and the first connector 300 are connected through threaded engagement. Compared to the prior art sealing method that only requires tightening the nut on the nylon tube to bring the conical parts together, the threaded connection provides a more stable connection force, avoiding the problem of unstable sealing caused by uneven force when the conical surfaces are in contact. At the same time, the installation of the movable sleeve 600 facilitates the assembly and disassembly of the first tube 110 and the first connector 300, improving the convenience of the connection operation and reducing the impact of the assembly process on the sealing effect.

[0048] Furthermore: the outer diameter of the first tube body 110 is smaller than the inner diameter of the first connector 300, and the first tube body 110 is provided with a protrusion 700 that contacts the inner wall of the first tube body 110, and the protrusion 700 is also provided with a first sealing ring 710 that cooperates with the movable sleeve 600.

[0049] The outer diameter of the first tube body 110 is smaller than the inner diameter of the first connector 300, and the first tube body 110 is provided with a protrusion 700 that contacts the inner wall of the first connector 300. The protrusion 700 is also provided with a first sealing ring 710 that mates with the movable sleeve 600. In this structure, the contact between the protrusion 700 and the inner wall of the first connector 300 increases the contact area between the first tube body 110 and the first connector 300, reducing gap problems caused by assembly deviations. At the same time, the first sealing ring 710 is pressed between the protrusion 700 and the movable sleeve 600 when the movable sleeve 600 is tightened, forming an additional sealing barrier. This, combined with the mating gap between the first tube body 110 and the first connector 300, forms a multi-seal structure, effectively compensating for the problem of mating gap fluctuations caused by manufacturing tolerances in existing conical seals, enhancing the reliability of the seal, and reducing the risk of leakage caused by stress relaxation of the sealing parts under vibration.

[0050] Example 3:

[0051] This application provides a nylon tubing for automobiles. In addition to the above-mentioned technical features, the nylon tubing for automobiles in this application also includes the following technical features.

[0052] As shown in the figure, the second connector 400 includes:

[0053] The connector body 410 includes a connector 411 connected to the second pipe body 120 and a welding collar 412 connected to the second connector 400, with an installation space 413 formed between the connector 411 and the second pipe body 120.

[0054] The connecting piece 420 is disposed on the outer wall of the second tube 120 and is connected to the connector 411 by threads;

[0055] Sealing assembly 430 is disposed within installation space 413;

[0056] The second tube body 120 is connected to the welding ring by welding.

[0057] In this embodiment, the second connector 400 includes a connector body 410, a mating part 420, and a sealing assembly 430. The connector body 410 includes a connector head 411 and a welding collar 412. The second pipe body 120 is welded to the welding collar 412. The mating part 420 is threadedly connected to the connector head 411. The sealing assembly 430 is installed in the installation space 413. The welding connection enables the second pipe body 120 and the welding collar 412 to form a stable integral structure, avoiding sealing failure caused by loosening between components in existing connection methods. The threaded engagement between the mating part 420 and the connector head 411 allows the sealing assembly 430 to be pressed tightly into the installation space 413 through tightening, ensuring close contact between the sealing assembly 430 and the second pipe body 120 and the connector head 411, thus improving the stability of the seal. The installation space 413 provides an installation environment for the sealing assembly 430, preventing displacement of the sealing component due to external interference, and further ensuring the sealing effect.

[0058] Furthermore, the second tube body 120 is also provided with a blocking ring 121 for restricting the movement of the connector 411.

[0059] A retaining ring 121 is installed on the second tube body 120 to restrict the movement of the connector 411. The retaining ring 121 can fix the position of the connector 411, prevent the connector 411 from being excessively displaced during assembly or under long-term vibration, ensure that the sealing assembly 430 is always in a preset compression state, maintain stable sealing pressure, and prevent sealing gaps caused by loosening of the sealing assembly 430 due to the movement of the connector 411. This enhances the vibration resistance of the overall structure of the second connector 400 and ensures the durability of the sealing effect.

[0060] Example 4:

[0061] This application provides a nylon tubing for automobiles. In addition to the above-mentioned technical features, the nylon tubing for automobiles in this application also includes the following technical features.

[0062] As shown in the figure, the sealing assembly 430 includes a second sealing ring 431, a packing ring 432, and a third sealing ring 433 arranged at intervals, and a push ring 434 that contacts the third sealing ring 433 is provided on the connector body 410.

[0063] In this embodiment, the sealing assembly 430 includes a second sealing ring 431, a packing ring 432, and a third sealing ring 433 installed at intervals. The connector body 410 is provided with a push ring 434 that contacts the third sealing ring 433. The multiple spaced sealing rings and the packing ring 432 can form multiple independent sealing barriers, which can effectively disperse sealing pressure and improve sealing redundancy compared to a single sealing structure. When the mating part 420 is tightened, the push ring 434 will squeeze the third sealing ring 433, thereby causing the packing ring 432 and the second sealing ring 431 to be subjected to force in sequence, ensuring that each sealing component can tightly fit the corresponding contact surface, avoiding sealing failure caused by insufficient local force in existing sealing structures, thereby effectively enhancing the sealing stability under temperature changes and vibration environments.

[0064] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0065] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A nylon tubing for automobiles, characterized in that: include: The nylon tube body (100) includes a first tube body (110) and a second tube body (120); The connection structure includes a main body (200), a first connector (300) and a second connector (400) disposed on the main body (200), wherein the first connector (300) and the second connector (400) are respectively engaged with the first tube body (110) and the second tube body (120); The main body (200) is provided with a connecting pipe (500) that connects the first connector (300) and the second connector (400), and the main body (200) is also provided with a control valve (510) that controls the opening and closing of the connecting pipe (500).

2. The nylon tubing for automobiles according to claim 1, characterized in that: The first connector (300) is provided with an external thread, and a matching movable sleeve (600) is provided on one end of the first tube body (110), and the inner wall of the movable sleeve (600) is provided with an internal thread.

3. The nylon tubing for automobiles according to claim 2, characterized in that: The outer diameter of the first tube body (110) is smaller than the inner diameter of the first connector (300), and the first tube body (110) is provided with a protrusion (700) that contacts the inner wall of the first tube body (110), and the protrusion (700) is also provided with a first sealing ring (710) that cooperates with the movable sleeve (600).

4. The nylon tubing for automobiles according to claim 3, characterized in that: The second connector (400) includes: The connector body (410) includes a connector (411) connected to the second pipe body (120) and a welded collar (412) connected to the second connector (400), and an installation space (413) is formed between the connector (411) and the second pipe body (120); The connecting piece (420) is disposed on the outer wall of the second tube (120) and is connected to the connector (411) by threads; A sealing assembly (430) is disposed within the mounting space (413); The second tube (120) is connected to the welding ring by welding.

5. A nylon tubing for automobiles according to claim 4, characterized in that: The sealing assembly (430) includes a second sealing ring (431), a packing ring (432), and a third sealing ring (433) spaced apart, and a push ring (434) is provided on the connector body (410) to contact the third sealing ring (433).

6. The nylon tubing for automobiles according to claim 5, characterized in that: The second tube (120) is also provided with a blocking ring (121) for restricting the movement of the connector (411).

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