Joint structure and automobile joint

Abstract

The utility model provides a connector structure and an automobile connector, and relates to the technical field of automobile connector application. The inner wall of the connector body is provided with a welding face, the welding face is used for being welded to the outer wall of the end of the connecting pipe, when the connecting pipe stretches into the connector body, the outer wall of the connecting pipe is welded to the welding face through laser equipment, then airtightness detection is conducted, and therefore the functional effects of connection and sealing are achieved. The fixing and sealing functions can be achieved without installing additional sealing rings and reinforcing sleeves, and the technical problems that in the prior art, due to the fact that a traditional fir design connector needs to additionally use a reinforcing sleeve and additionally add one sealing ring, applicability is low, and cost is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile joint applications, in particular to a joint structure and an automobile joint. Background Art

[0002] At present, connectors are used in many areas of automobiles, such as water, electricity, oil, gas and other pipeline systems, and have become a part of the automotive industry. Any type of vehicle, whether it is a traditional fuel vehicle or a rapidly developing new energy vehicle, requires the use of connectors. At the same time, the requirements for the functional diversity of connectors are gradually increasing.

[0003] Most connectors currently on the market use fir-shaped connector ports at both ends for connection to pipes, or one end of the connector connects to the pipe with a fir-shaped structure, while the other end connects to a corresponding male or female connector, thereby forming a complete pipe connection system. However, traditional fir-shaped connectors often require the installation of a reinforcement sleeve for fixation after the connector and pipe are plugged in. This type of connector and pipe connection method cannot be further improved in terms of stability and production efficiency. The reason is that the dimensions of the connector and pipe are not fixed. Pipe systems of different sizes require the development of new reinforcement sleeves of different sizes to fix the traditional fir-shaped connector. Given the increasingly competitive environment in the current automotive industry, the defects or limitations of this design are obvious. In situations where various connectors and pipes need to be more economical, efficient and stable, the only way is to purchase or develop injection molds that can produce reinforcement sleeves of different sizes for fixing pipe connectors of various sizes. This complicates the pipe design, reduces installation efficiency, and increases production costs.

[0004] In addition, traditional connectors must be equipped with sealing rings before being connected to the pipeline to ensure that the sealing function is achieved after being connected to the pipeline assembly. Therefore, it is necessary to purchase sealing rings and add a sealing ring assembly process to the quick-connect connector, which greatly increases the production cycle and cost. In addition, according to experience, since the sealing rings need to be mixed with oil, connectors with sealing rings are often prone to absorbing foreign matter. Therefore, the risk of joint leakage and hidden dangers during production and use are obvious.

[0005] Therefore, from the above problems, it can be determined that traditional joints can no longer meet the requirements of safety, high efficiency and cost reduction under specific requirements. Utility Model Content

[0006] The purpose of the utility model is to provide a joint structure and an automobile joint to alleviate the technical problems existing in the prior art that traditional fir design joints require additional reinforcement sleeves and an additional sealing ring, resulting in low applicability and high cost.

[0007] In a first aspect, the present invention provides a joint structure for connecting to a connecting pipe, comprising: a joint body;

[0008] The inner wall of the joint body has a welding surface, and the welding surface is used for welding to the outer wall of the end of the connecting pipe.

[0009] In an alternative embodiment,

[0010] The joint body includes a first connecting section and a second connecting section;

[0011] The first connecting section and the second connecting section are connected to each other, and the inner diameter of the first connecting section is smaller than the inner diameter of the second connecting section;

[0012] The welding surface is formed on the inner wall of the first connecting section.

[0013] In an alternative embodiment,

[0014] A retaining ring is formed by extending inwardly from the connection between the inner wall of the first connecting section and the inner wall of the second connecting section. The retaining ring is used to prevent the connecting pipe from extending into the second connecting section.

[0015] In an alternative embodiment,

[0016] The joint body further includes a third connecting section;

[0017] The third connecting section is connected to a side of the second connecting section away from the first connecting section;

[0018] The inner diameter of the third connecting section is larger than the inner diameter of the second connecting section;

[0019] A sealing ring is provided on the inner wall of the third connecting section.

[0020] In an alternative embodiment,

[0021] The joint structure further includes a fixing ring;

[0022] The fixing ring is installed on the inner wall of the third connecting section, and the fixing ring is located on a side of the sealing ring away from the second connecting section.

[0023] In an alternative embodiment,

[0024] The joint body further includes a fourth connecting section;

[0025] The fourth connecting section is connected to a side of the third connecting section away from the second connecting section;

[0026] The inner diameter of the fourth connecting section is greater than the inner diameter of the third connecting section.

[0027] In an alternative embodiment,

[0028] The joint structure further includes a clamping spring;

[0029] The clamping spring is installed on the fourth connecting section.

[0030] In an alternative embodiment,

[0031] The inner wall and the outer wall of the first connecting section are both configured as smooth planar structures.

[0032] In an alternative embodiment,

[0033] The joint body is made of nylon material, and the fixing ring is made of nylon material.

[0034] In a second aspect, the automobile connector provided by the present invention includes the connector structure.

[0035] The joint structure provided by the present invention eliminates the fir structure design of the traditional joint and uses a simpler smooth structure design that can be used for laser welding; when the pipeline and the joint are connected, the joint and the pipeline are first plugged in and pre-installed, and then the two parts are welded and airtightly tested using laser equipment, thereby achieving the functional effects of connection and sealing; the entire process is simple and efficient, and there is no need to install additional sealing rings and reinforcement sleeves to achieve the fixing and sealing functions. It can be seen that the joint design structure of the new weldable connecting pipe can not only achieve the quick connection function of ordinary joints, but also ensure the sealing function during the pipeline connection process, alleviating the technical problems in the prior art that the traditional fir design joints require the additional use of reinforcement sleeves and the addition of an extra sealing ring, resulting in low applicability and high cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 A cross-sectional view of the overall structure of the joint structure provided by an embodiment of the present utility model;

[0038] Figure 2 This is a schematic diagram of the overall structure of the joint structure provided in an embodiment of the present utility model.

[0039] Icon: 100-connector body; 110-first connecting section; 111-welding surface; 112-retaining ring; 120-second connecting section; 130-third connecting section; 140-fourth connecting section; 200-connecting pipe; 300-sealing ring; 400-fixing ring; 500-circlip. DETAILED DESCRIPTION

[0040] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0043] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0044] like Figure 1 、 Figure 2 As shown, the joint structure provided in this embodiment is used to connect with the connecting pipe 200, including: a joint body 100; the inner wall of the joint body 100 has a welding surface 111, and the welding surface 111 is used to weld with the outer wall of the end of the connecting pipe 200.

[0045] Specifically, the welding surface 111 formed on the inner wall of the joint body 100 is a smooth structure. When the connecting pipe 200 is inserted into the joint body 100, a laser device is used to weld the outer wall of the connecting pipe 200 to the welding surface 111, and then an airtightness test is performed to achieve the functional effects of connection and sealing. There is no need to install additional sealing rings 300 and reinforcement sleeves to achieve the fixing and sealing functions.

[0046] In an optional embodiment, the joint body 100 includes a first connecting section 110 and a second connecting section 120; the first connecting section 110 and the second connecting section 120 are connected to each other, and the inner diameter of the first connecting section 110 is smaller than the inner diameter of the second connecting section 120; the inner wall of the first connecting section 110 is formed with a welding surface 111.

[0047] Specifically, the first connecting section 110 is located on the side of the second connecting section 120 close to the connecting pipe 200. The inner diameter of the first connecting section 110 is smaller than the inner diameter of the second connecting section 120. The inner wall of the first connecting section 110 has a smooth plane, which is the welding surface 111, and the outer wall of the connecting pipe 200 is welded to the inner wall of the first connecting section 110.

[0048] In an optional embodiment, a retaining ring 112 extends inwardly from the connection between the inner wall of the first connecting section 110 and the inner wall of the second connecting section 120 . The retaining ring 112 is used to prevent the connecting pipe 200 from extending into the second connecting section 120 .

[0049] Specifically, the inner diameter of the second connecting section 120 is larger than the inner diameter of the first connecting section 110, so a first step surface is formed at the junction of the first connecting section 110 and the second connecting section 120, and a retaining ring 112 is formed on the first step surface. The inner diameter of the retaining ring 112 is smaller than the inner diameter of the first connecting section 110. During the installation of the connecting pipe 200, the connecting pipe 200 extends into the first connecting section 110. Since the inner diameter of the retaining ring 112 is smaller than the outer diameter of the connecting pipe 200, the retaining ring 112 will block the connecting pipe 200 and prevent the connecting pipe 200 from entering the second connecting pipe 200, thereby limiting the installation position of the connecting pipe 200, making it convenient to accurately weld the connecting pipe 200 to the smooth welding surface 111 formed on the inner wall of the first connecting section 110.

[0050] In an optional embodiment, the connector body 100 further includes a third connecting section 130; the third connecting section 130 is connected to the side of the second connecting section 120 away from the first connecting section 110; the inner diameter of the third connecting section 130 is larger than the inner diameter of the second connecting section 120; and a sealing ring 300 is provided on the inner wall of the third connecting section 130.

[0051] Specifically, the third connecting section 130 is located on the side of the second connecting section 120 away from the first connecting section 110. Since the inner diameter of the third connecting section 130 is larger than the inner diameter of the second connecting section 120, a second step surface is formed between the third connecting section 130 and the second connecting section 120. A sealing ring 300 is arranged at a position close to the second step surface of the third connecting section 130, thereby realizing internal sealing of the joint body 100.

[0052] In an optional embodiment, the joint structure further includes a fixing ring 400 ; the fixing ring 400 is mounted on the inner wall of the third connecting section 130 , and the fixing ring 400 is located on a side of the sealing ring 300 away from the second connecting section 120 .

[0053] Specifically, the fixing ring 400 is installed on the inner wall of the third connecting section 130. The fixing ring 400 is located on the side of the sealing ring 300 away from the second step surface. The fixing ring 400 serves to limit the position of the sealing ring 300, effectively preventing the sealing ring 300 from falling out, thereby fixing the sealing ring 300 inside the joint body 100.

[0054] In an optional embodiment, the connector body 100 further includes a fourth connecting segment 140 ; ​​the fourth connecting segment 140 is connected to a side of the third connecting segment 130 away from the second connecting segment 120 ; and the inner diameter of the fourth connecting segment 140 is greater than the inner diameter of the third connecting segment 130 .

[0055] It should be noted that the first connecting segment 110 , the second connecting segment 120 , the third connecting segment 130 and the fourth connecting segment 140 are an integral structure.

[0056] In addition, the fixing ring 400 is located at the junction of the third connecting section 130 and the fourth connecting section 140 .

[0057] In an optional embodiment, the joint structure further includes a retaining spring 500 ; the retaining spring 500 is installed on the fourth connecting section 140 .

[0058] Specifically, the clamping spring 500 on the fourth connecting section 140 serves to clamp the joint body 100 on the pipeline.

[0059] In an optional embodiment, the inner wall and the outer wall of the first connecting section 110 are both configured as a smooth planar structure, replacing the traditional fir-like structure, and it is easier to weld the connecting pipe 200 inside the first connecting section 110 .

[0060] In an optional embodiment, the joint body 100 is made of nylon material, and the fixing ring 400 is made of nylon material.

[0061] In addition, the joint body 100 and the fixing ring 400 may also be made of other polymer materials, and different materials may be selected according to specific circumstances.

[0062] The joint structure provided in this embodiment eliminates the fir-shaped structure design of the traditional joint and uses a simpler smooth surface structure design that can be used for laser welding. When the pipeline and the joint are connected, the joint and the pipeline are first pre-assembled by plugging, and then the two parts are welded and airtightly tested using laser equipment, thereby achieving the functional effects of connection and sealing. The entire process is simple and efficient, and there is no need to install additional sealing rings 300 and reinforcement sleeves to achieve the fixing and sealing functions. It can be seen that the joint design structure of the new weldable connecting pipe 200 can not only achieve the quick connection function of ordinary joints, but also ensure the sealing function during the pipeline connection process, alleviating the technical problems in the prior art that the traditional fir-shaped design joints require the additional use of reinforcement sleeves and the addition of an extra sealing ring 300, resulting in low applicability and high cost.

[0063] On the basis of the above embodiment, the automobile connector provided in this embodiment includes the above connector structure.

[0064] Since the technical effect of the automobile joint provided by this embodiment is the same as the technical effect of the joint structure provided by the above embodiment, it will not be described in detail here.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A joint structure for connecting with a connecting pipe (200), characterized in that: include: A connector body (100); The inner wall of the joint body (100) has a welding surface (111), and the welding surface (111) is used for welding to the outer wall of the end of the connecting pipe (200).

2. The joint structure according to claim 1, characterized in that: The joint body (100) comprises a first connecting section (110) and a second connecting section (120); The first connecting section (110) and the second connecting section (120) are connected to each other, and the inner diameter of the first connecting section (110) is smaller than the inner diameter of the second connecting section (120); The welding surface (111) is formed on the inner wall of the first connecting section (110).

3. The joint structure according to claim 2, characterized in that: A retaining ring (112) is formed at a connection point between the inner wall of the first connecting section (110) and the inner wall of the second connecting section (120), and the retaining ring (112) is used to prevent the connecting pipe (200) from extending into the second connecting section (120).

4. The joint structure according to claim 3, characterized in that: The joint body (100) further includes a third connecting section (130); The third connecting section (130) is connected to a side of the second connecting section (120) away from the first connecting section (110); The inner diameter of the third connecting section (130) is greater than the inner diameter of the second connecting section (120); A sealing ring (300) is provided on the inner wall of the third connecting section (130).

5. The joint structure according to claim 4, characterized in that: The joint structure further comprises a fixing ring (400); The fixing ring (400) is installed on the inner wall of the third connecting section (130), and the fixing ring (400) is located on a side of the sealing ring (300) away from the second connecting section (120).

6. The joint structure according to claim 4, characterized in that: The joint body (100) further includes a fourth connecting section (140); The fourth connecting section (140) is connected to a side of the third connecting section (130) away from the second connecting section (120); The inner diameter of the fourth connecting section (140) is greater than the inner diameter of the third connecting section (130).

7. The joint structure according to claim 6, characterized in that: The joint structure further includes a clamping spring (500); The clamping spring (500) is mounted on the fourth connecting section (140).

8. The joint structure according to claim 2, characterized in that: The inner wall and the outer wall of the first connecting section (110) are both configured as smooth planar structures.

9. The joint structure according to claim 5, characterized in that: The joint body (100) is made of nylon material, and the fixing ring (400) is made of nylon material.

10. An automobile joint, characterized in that: The invention comprises a joint structure according to any one of claims 1 to 9.

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