Pipeline and plug integrated sealing structure and automobile

Abstract

The utility model provides a pipeline and plug integrated sealing structure and an automobile. The sealing structure comprises a pipeline and an elastic plug. Wherein the elastic plug is arranged on the outer wall surface of the pipeline in a sleeving manner and is in interference sealing connection with the outer wall surface of the pipeline; an annular sealing groove is formed in the outer wall face of the elastic plug, the elastic plug is configured to be arranged in a mounting hole of a structural part in a penetrating mode and connected with the part, located around the mounting hole, of the structural part in a sealed and clamped mode through the annular sealing groove, the inner wall face of the annular sealing groove is in interference fit with the wall face of the mounting hole, and the annular sealing groove is arranged in the wall thickness direction of the structural part. The part, located around the mounting hole, of the structural part is elastically clamped in the annular sealing groove. The pipeline and the plug are integrated, installation is more convenient, looseness is not prone to occurring, water and other impurities splashed on one side of a structural part can be effectively prevented from entering the other side of the structural part, and the sealing performance between the structural part and the pipeline is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of sealing, and particularly relates to a sealing structure integrating a pipeline and a plug and a car comprising the sealing structure. Background Art

[0002] In the assembly process of products with many parts, it is often necessary to connect the pipeline and a plate-like structural part at its opening. Taking automobile assembly as an example, with the trend of continuous compactness of vehicle space, automobile parts are mostly arranged independently in the upper body and the lower body. In order to meet the cooling needs of parts, the body sheet metal needs to have through holes for the cooling pipeline to pass through the body to achieve connection with the cooled parts to complete cooling. However, the body sheet metal holes and pipelines are often not gap-free. Some technologies will put a section of sponge on the pipeline, but the water pipe will shake irregularly during the driving of the vehicle, and the outer wall of the sheet metal hole will still wear the pipeline, causing leakage. At present, in order to solve the above problems, a plug will be installed at the sheet metal hole, and the pipeline can pass through the middle of the plug. However, most of the existing pipelines and plugs are split, that is, the pipeline and the plug will have an installation sequence before and after. This form is inconvenient to assemble and easy to loosen. Improper matching will cause leakage. Workers need to rework and reassemble, which increases working hours and is inefficient. Utility Model Content

[0003] The utility model aims to solve the problem that in the prior art, most of the pipelines and plugs are split, which is inconvenient to assemble and easy to loosen. Improper matching will cause water leakage, and workers need to rework and reassemble, which increases working hours and has poor efficiency.

[0004] To solve the above problems, an embodiment of the utility model discloses a sealing structure integrating a pipeline and a plug, comprising: a pipeline and an elastic plug; wherein the elastic plug is sleeved on the outer wall surface of the pipeline and is interference-sealed with the outer wall surface of the pipeline; and an annular sealing groove is provided on the outer wall surface of the elastic plug, and the elastic plug is configured to: be able to be passed through the mounting hole of the structural member, and be sealed and clamped with the part of the structural member located around the mounting hole through the annular sealing groove, wherein the inner wall surface of the annular sealing groove is interference-fitted with the wall surface of the mounting hole, and in the wall thickness direction of the structural member, the part of the structural member located around the mounting hole is elastically clamped in the annular sealing groove.

[0005] By adopting the above technical solution, the elastic plug is set on the outer wall of the pipeline and is connected to the outer wall of the pipeline by interference sealing, which not only realizes the integrated integration and sealing connection between the pipeline and the elastic plug, but also is more convenient to install and not easy to loosen compared to the existing split sealing structure. It also avoids the problem that when water leakage occurs due to improper matching between the pipeline and the plug, the workers need to rework and reassemble, which increases working hours and has poor efficiency. In addition, the annular sealing groove set on the outer wall of the elastic plug is sealed and clamped with the part of the structural member located around the mounting hole, and the inner wall of the annular sealing groove is interference fit with the wall of the mounting hole. In the wall thickness direction of the structural member, the part of the structural member located around the mounting hole is elastically clamped in the annular sealing groove, realizing the sealing connection between the elastic plug and the structural member around the mounting hole, which can effectively prevent the impurities such as water splashed on one side of the structural member from entering the other side, thereby ensuring the sealing between the structural member and the pipeline.

[0006] According to another specific embodiment of the utility model, in a sealing structure integrating a pipeline and a plug disclosed in the embodiment of the utility model, an arc-shaped lip is formed on the outer wall surface of the first end of the elastic plug, and the lip is connected to the side wall surface of the annular sealing groove close to the first end of the elastic plug, and the bottom surface of the end surface of the lip away from the first end of the elastic plug is flush with the other side wall surface of the annular sealing groove; when the elastic plug is passed through the mounting hole of the structural member, in the wall thickness direction of the structural member, the bottom surface of the lip elastically abuts against the first side surface of the portion of the structural member located around the mounting hole, and the other side wall surface of the annular sealing groove elastically abuts against the second side surface of the portion of the structural member located around the mounting hole.

[0007] By adopting the above technical solution, the bottom surface of the lip of the elastic plug away from the end surface of the first end of the elastic plug is flush with the other side wall of the annular sealing groove. When the elastic plug is inserted into the mounting hole of the structural member, in order to achieve elastic contact between the bottom surface of the lip and the first side surface of the part of the structural member located around the mounting hole, the first side surface of the part of the structural member located around the mounting hole can only be fully pressed against the lip by the first side surface of the part, so that the bottom surface of the lip is tightly attached to the first side surface of the structural member, ensuring the sealing performance between the first side surface of the structural member and the elastic plug. At the same time, when the elastic plug is inserted into the mounting hole of the structural member, the other side wall of the annular sealing groove is elastically contacted with the second side surface of the part of the structural member located around the mounting hole, that is, the other side wall of the annular sealing groove is tightly attached to the second side surface of the structural member, ensuring the sealing performance between the second side surface of the structural member and the elastic plug. In addition, when the elastic plug is inserted into the mounting hole of the structural member, the inner wall surface of the annular sealing groove and the wall surface of the mounting hole are interference fit, that is, the wall surface of the mounting hole of the structural member is closely attached to the inner wall surface of the annular sealing groove, which ensures the sealing performance between the wall surface of the mounting hole of the structural member and the elastic plug, and can effectively prevent impurities such as water splashing from one side of the first side and the second side of the structural member from entering the other side. In this way, a three-layer sealing structure is formed between the elastic plug and the structural member, and a mutually clamping force is formed between the three-layer sealing structure, so that the elastic plug can be stably fixed around the mounting hole of the structural member.

[0008] According to another specific embodiment of the utility model, in the pipeline and plug integrated sealing structure disclosed in the embodiment of the utility model, an inclined first guiding surface is formed between the lip and one side wall of the annular sealing groove, and the cross-section of the annular sealing groove is trapezoidal.

[0009] By adopting the above technical solution, an inclined first guiding surface is formed between the lip and one side wall of the annular sealing groove, and the elastic plug can be inserted into the mounting hole of the structural member under the guidance of the first guiding surface, which saves time and effort.

[0010] According to another specific embodiment of the utility model, in the sealing structure of the integrated pipeline and the plug disclosed in the embodiment of the utility model, the elastic plug is in the shape of a circular ring, the outer wall diameter of the first end of the elastic plug is larger than the outer wall diameter of the second end of the elastic plug, and the outer wall surface of the second end of the elastic plug is formed with an inclined second guide surface.

[0011] By adopting the above technical solution, the outer wall surface of the second end of the elastic plug is formed with an inclined second guide surface, and the second end of the elastic plug can pass through the mounting hole of the structural member under the guidance of the second guide surface, which saves time and effort.

[0012] According to another specific embodiment of the present utility model, in the sealing structure of the pipeline and the plug integrated in the embodiment of the present utility model, the second guide surface is at an angle of 45° to 75° relative to the center line of the pipeline.

[0013] By adopting the above technical solution, the second guide surface is at an angle of 45° to 75° relative to the center line of the pipeline, which can not only ensure that the deformation of the second end of the elastic plug will not be too large under the extrusion of the wall of the mounting hole during the process of the second end of the elastic plug passing through the mounting hole of the structural member, thereby saving more effort, but also ensure that the volume of the second end of the elastic plug will not be too small, so that after the elastic plug is passed through the mounting hole of the structural member, it will not affect the force of the second end of the elastic plug on the structural member, thereby ensuring the sealing and clamping effect of the elastic plug and the mounting hole of the structural member.

[0014] According to another specific embodiment of the utility model, in the sealing structure of the pipeline and the plug integrated in the embodiment of the utility model, the second end of the elastic plug is formed with a retreat groove opening toward the end surface of the second end, and the retreat groove is located between the second guide surface and the inner wall surface of the elastic plug.

[0015] By adopting the above technical solution, when the second end of the elastic plug passes through the mounting hole of the structural member, the second end of the elastic plug will be deformed under the extrusion of the wall surface of the mounting hole, and a retreat groove is provided at the second end of the elastic plug, which is located between the second guide surface and the inner wall surface of the elastic plug and opens to the end surface of the second end. This can ensure that the second end of the elastic plug has sufficient deformation space, can stably pass through the installation of the structural member, and reduces assembly resistance, reduces assembly difficulty, and improves assembly efficiency.

[0016] According to another specific embodiment of the present utility model, in the sealing structure of the pipeline and the plugging integration disclosed in the embodiment of the present utility model, the cross section of the retreat groove is trapezoidal.

[0017] By adopting the above technical solution, the cross-section of the retreat groove is trapezoidal, which is not only easy to process and manufacture due to the regular shape, but also can ensure to the greatest extent that the retreat groove has sufficient space, so that the second end of the elastic plug has sufficient deformation space in the process of passing through the mounting hole of the structural member, thereby reducing the difficulty of assembly and improving the assembly efficiency.

[0018] According to another specific embodiment of the present invention, in the sealing structure of the pipeline and the plug integrated in the embodiment of the present invention, a pressing portion is formed on the end surface of the first end of the elastic plug.

[0019] By adopting the above technical solution, a pressing portion is formed on the end surface of the first end of the elastic plug, so that the installer can apply a force to the pressing portion to seal and engage the elastic plug with the structural member.

[0020] According to another specific embodiment of the utility model, a sealing structure integrating a pipeline and a plug is disclosed in the embodiment of the utility model, wherein a through hole is opened inside the elastic plug, the inner wall surface of the through hole is interference fit with the outer wall surface of the pipeline, and the inner wall surface of the through hole includes a straight clip portion and an inclined clip portion inclined toward the axis of the through hole, and the elastic plug is sealed and clamped to the outer wall surface of the pipeline by the straight clip portion and the inclined clip portion.

[0021] By adopting the above technical solution, a straight clip part and an inclined clip part are set on the inner wall surface of the through hole in the elastic plug. The elastic plug can be firmly clamped on the outer wall surface of the pipeline through the sealing of the straight clip part and the inclined clip part. In this way, the pipeline and the elastic plug are integrated and sealed through a simple structure.

[0022] According to another specific embodiment of the utility model, in the pipeline and plug integrated sealing structure disclosed in the embodiment of the utility model, the inclined clamping portion and the axis of the through hole form an angle of 15° to 45°.

[0023] By adopting the above technical solution, the inclined clamping portion forms an angle of 15° to 45° with the axis of the through hole, which can not only ensure the sealing clamping effect of the elastic plug and the outer wall of the pipeline, but also ensure that the elastic plug does not need to produce excessive deformation during the assembly of the pipeline and the elastic plug, thereby reducing the difficulty of assembly and improving assembly efficiency.

[0024] The embodiment of the utility model further discloses an automobile, comprising: the sealing structure and structural parts integrating the pipeline and the plugging.

[0025] By adopting the above technical solution, a sealed connection between the sealing structure and the structural parts in the automobile is achieved, which can effectively prevent impurities such as water splashed on one side of the structural parts of the automobile from entering the other side, thereby ensuring the sealing between the structural parts and pipelines on the automobile.

[0026] According to another specific embodiment of the present utility model, the structural member of the automobile disclosed in the embodiment of the present utility model is a body sheet metal.

[0027] The above technical solution can not only achieve a sealed connection between the pipeline and the body sheet metal hole to avoid water seepage, impurity infiltration and noise problems, but also free up space for the arrangement of other components, which is conducive to achieving lightweight of the entire vehicle.

[0028] The beneficial effects of the utility model are:

[0029] The sealing structure and automobile integrated with pipeline and plug provided by the utility model are adopted. The elastic plug in the sealing structure is set on the outer wall of the pipeline and is connected with the outer wall of the pipeline by interference sealing. It not only realizes the integrated integration and sealing connection of pipeline and elastic plug, but also is more convenient to install and not easy to loosen compared with the existing split sealing structure. It also avoids the problem that workers need to rework and reassemble when leakage occurs due to improper matching of pipeline and plug, which increases working hours and has poor efficiency. In addition, the annular sealing groove set on the outer wall of the elastic plug is sealed and clamped with the part of the structural member located around the mounting hole, and the inner wall of the annular sealing groove is interference fit with the wall of the mounting hole. In the wall thickness direction of the structural member, the part of the structural member located around the mounting hole is elastically clamped in the annular sealing groove, realizing the sealing connection between the elastic plug and the structural member around the mounting hole, which can effectively prevent the impurities such as water splashed on one side of the structural member from entering the other side, and ensure the sealing between the structural member and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a sealing structure integrating a pipeline and a plug provided in Example 1 of the utility model;

[0031] Figure 2 yes Figure 1 Schematic diagram of the cross section of AA (assuming that the blockage does not deform);

[0032] Figure 3 yes Figure 1 Schematic diagram of the cross section of AA in the middle (deformation due to blockage);

[0033] Figure 4 yes Figure 1 Schematic diagram of the cross section of AA (both the blockage and the pipeline are deformed);

[0034] Figure 5 yes Figure 1 A magnified cross-sectional view of AA at position D in the middle;

[0035] Figure 6 It is a schematic diagram of the structure in one direction after the sealing structure integrating the pipeline and the plug provided in Example 1 of the utility model is assembled in the mounting hole of the structural member;

[0036] Figure 7 It is a schematic diagram of the structure in another direction after the sealing structure integrated with the pipeline and the plug provided in Example 1 of the utility model is assembled in the mounting hole of the structural member;

[0037] Figure 8 yes Figure 6 Schematic diagram of the cross section of the middle BB (assuming that no deformation occurs due to the blockage);

[0038] Fig. 9 yes Figure 6 Schematic diagram of the cross section of the middle BB (deformation due to blockage);

[0039] Fig.10 yes Figure 6 Schematic diagram of the cross section of the BB (both the blockage and the pipeline are deformed).

[0040] Description of reference numerals:

[0041] 100, pipeline; 200, elastic plug; C, first end of elastic plug; D, second end of elastic plug; 210, annular sealing groove; 211, inner wall surface of annular sealing groove; 212, upper wall surface of annular sealing groove; 213, lower wall surface of annular sealing groove; 220, lip; 221, bottom surface of lip; 230, first guide surface; 240, second guide surface; 250, retreat groove; 260, linear clamping part; 270, inclined clamping part; 280, pressing part; 300, structural member; 310, mounting hole; 311, wall surface of mounting hole; 320, upper surface of structural member; 330, lower surface of structural member; H1, wall thickness direction of structural member; H2, thickness direction of annular sealing groove; H3, height direction of elastic plug. DETAILED DESCRIPTION

[0042] Example 1

[0043] In order to solve the problem that most of the pipelines and plugs in the prior art are split, which is inconvenient to assemble and easy to loosen, and water leakage will occur if they are not properly matched, and workers need to rework and reassemble, which increases working hours and has poor efficiency, the utility model provides a sealing structure integrating pipeline and plug, which is convenient to install and the pipeline and plug are not easy to loosen, and also avoids water leakage due to improper matching between the pipeline and the plug, increased working hours and poor efficiency. In addition, a sealed connection between the plug and the structural member around the mounting hole is achieved, which can effectively prevent impurities such as water splashed on one side of the structural member from entering the other side, thereby ensuring the sealing between the structural member and the pipeline.

[0044] Next, refer to the attached Figure 1-Figure 10 , the structure and advantages of the sealing structure integrating pipeline and plugging provided by the utility model are described in detail.

[0045] like Figure 1As shown, the sealing structure of pipeline and plug integration provided by the utility model comprises: pipeline 100 and elastic plug 200. Among them, the elastic plug 200 is sleeved on the outer wall surface of the pipeline 100 and is connected to the outer wall surface of the pipeline 100 in an interference sealing manner. In this way, not only the pipeline 100 and the elastic plug 200 are integrated and sealed, but also compared with the existing split sealing structure, it is more convenient to install and not easy to loosen, and it also avoids the problem that workers need to rework and reassemble when water leakage occurs due to improper matching between the pipeline 100 and the plug, which increases working hours and has poor efficiency.

[0046] In this embodiment, the pipeline 100 can be a rigid pipeline or an elastic pipeline, and this embodiment does not impose any specific restrictions on this. If the pipeline 100 is a rigid pipeline, the elastic plug 200 is assembled with the pipeline 100, such as Figure 3 and Fig. 9 As shown in FIG. 1 , the contact surface between the elastic plug 200 and the pipeline 100 will be deformed. If the pipeline 100 is an elastic pipeline, after the elastic plug 200 and the pipeline 100 are assembled, as shown in FIG. Figure 4 and Fig.10 As shown, the contact surfaces of the elastic plug 200 and the pipeline 100 will both deform under the force of mutual extrusion. In addition, the elastic pipeline and the elastic plug 200 can be made of the same elastic material or different elastic materials, and the specific material can be rubber. It should be noted that Figure 4 and Fig.10 It is only a schematic diagram of the deformation of the contact surface of the elastic plug 200 and the pipeline 100 after the two are assembled. The specific shape after deformation is produced by the actual assembly and is not specifically limited in this embodiment.

[0047] And, if Figure 2 to Figure 5 As shown, the outer wall surface of the elastic plug 200 is provided with an annular sealing groove 210. Figure 6 to Figure 10 As shown, the elastic plug 200 is configured to be able to pass through the mounting hole 310 of the structural member 300, and to be sealed and clamped with the portion of the structural member 300 located around the mounting hole 310 through the annular sealing groove 210. The inner wall surface 211 of the annular sealing groove 210 is interference-fitted with the wall surface 311 of the mounting hole 310, and in the wall thickness direction H1 of the structural member 300, the portion of the structural member 300 located around the mounting hole 310 is elastically clamped in the annular sealing groove 210. In this way, the elastic plug 200 is sealedly connected with the structural member 300 around the mounting hole 310, which can effectively prevent impurities such as water splashed on one side of the structural member 300 from entering the other side, thereby ensuring the sealing between the structural member 300 and the pipeline 100.

[0048] In this embodiment, the sealing structure integrating the pipeline and the plug can be applied to the vehicle, and the structural member 300 can be a body sheet metal. After the sealing structure is assembled in the body sheet metal hole, when the vehicle passes through the bad road surface such as water accumulation quickly, it can effectively prevent the splashing water, impurities and noise from the lower body from entering the upper body cabin, protect the carpet, sound insulation pad, shock-absorbing pad and floor in the car from damage, and greatly enhance the passenger's car experience.

[0049] In a specific embodiment, Figure 5 As shown, the outer wall surface of the first end C of the elastic plug 200 is formed with an arc-shaped lip 220, the lip 220 is connected to the side wall surface of the annular sealing groove 210 close to the first end C of the elastic plug 200, and the bottom surface 221 of the end surface of the lip 220 away from the first end C of the elastic plug 200 is flush with the other side wall surface of the annular sealing groove 210. Figure 6 to Figure 10 As shown, when the elastic plug 200 is passed through the mounting hole 310 of the structural member 300, in the wall thickness direction H1 of the structural member 300, the bottom surface 221 of the lip 220 elastically abuts against the first side surface of the portion of the structural member 300 located around the mounting hole 310, and the other side wall surface of the annular sealing groove 210 elastically abuts against the second side surface of the portion of the structural member 300 located around the mounting hole 310.

[0050] It should be noted that, in this embodiment, one side wall surface and the other side wall surface of the annular sealing groove 210 are arranged opposite to each other in the thickness direction H2 of the annular sealing groove 210. The first side surface and the second side surface of the structural member 300 are arranged opposite to each other in the wall thickness direction H1 of the structural member 300. Specifically, one side wall surface of the annular sealing groove 210 may be as follows: Figure 2 The upper wall surface 212 of the annular sealing groove 210 is shown, and the other side wall surface of the annular sealing groove 210 is the lower wall surface 213 of the annular sealing groove 210, the first side surface of the structural member 300 is the upper surface 320 of the structural member 300, and the second side surface of the structural member 300 is specifically the lower surface 330 of the structural member 300; vice versa is also possible, and this embodiment does not impose any specific limitation on this.

[0051] Thus, due to Figure 2 As shown, the sealing structure is installed before the mounting hole 310 of the structural member 300, and the lip edge 220 of the elastic plug 200 is away from the bottom surface 221 of the end surface of the first end C of the elastic plug 200 and the other side wall surface (i.e. Figure 2 The lower wall surface 213 of the middle annular sealing groove 210 is flush with the lower wall surface 213 of the middle annular sealing groove 210. When the elastic plug 200 is inserted into the mounting hole 310 of the structural member 300, the following is achieved: Figure 8 to Figure 10 The bottom surface 221 of the lip 220 shown in the figure is connected to the first side surface (i.e. Figure 8 to Figure 10The upper surface 320 of the structural member 300 in the installation hole 310 is elastically abutted, and only the first side surface (i.e., the portion of the structural member 300 located around the installation hole 310) can be made to be elastically abutted during the installation process. Figure 8 to Figure 10 The upper surface 320 of the structural member 300 in the embodiment of the present invention fully squeezes the lip 220, and the lip 220 moves in the direction of the elastic plug 200. Figures 8 to 10 The bottom surface 221 of the lip 220 moves downward and deforms outward, so that the bottom surface 221 of the lip 220 is as shown in FIG. Figure 8 to Figure 10 The first side surface (ie, Figure 8 to Figure 10 The upper surface 320 of the structural member 300 in the annular sealing groove 210 is ensured to be sealed between the first side surface of the structural member 300 and the elastic plug 200. At the same time, after the elastic plug 200 is inserted into the mounting hole 310 of the structural member 300, the other side wall surface of the annular sealing groove 210 (i.e. Figure 8 to Figure 10 The lower wall surface 213 of the middle annular sealing groove 210 can be aligned with the second side surface (i.e., Figure 8 to Figure 10 The elastic plug 200 is elastically abutted against the lower surface 330 of the structural member 300, that is, the other side wall of the annular sealing groove 210 is in close contact with the second side surface of the structural member 300, thereby ensuring the sealing performance between the second side surface of the structural member 300 and the elastic plug 200. In addition, when the elastic plug 200 is inserted into the mounting hole 310 of the structural member 300, the inner wall surface 211 of the annular sealing groove 210 and the wall surface 311 of the mounting hole 310 are interference fit, that is, the wall surface 311 of the mounting hole 310 of the structural member 300 is in close contact with the inner wall surface 211 of the annular sealing groove 210, thereby ensuring the sealing performance between the wall surface 311 of the mounting hole 310 of the structural member 300 and the elastic plug 200. In this way, a three-layer sealing structure is formed between the elastic plug 200 and the structural member 300, and a mutually clamping force is formed between the three-layer sealing structure, so that the elastic plug 200 can be stably fixed around the mounting hole 310 of the structural member 300.

[0052] In a specific embodiment, Figure 2 As shown, the lip 220 and one side wall of the annular sealing groove 210 (such as Figure 2 An inclined first guide surface 230 is formed between the upper wall surface 212 of the annular sealing groove 210, and the cross section of the annular sealing groove 210 is trapezoidal. In this way, the elastic plug 200 can be inserted into the mounting hole 310 of the structural member 300 under the guidance of the first guide surface 230, which saves time and effort.

[0053] In a specific embodiment, Figure 1 and Figure 2As shown, the elastic plug 200 is in a circular ring shape, that is, it has a first end C and a second end D. The outer wall diameter of the first end C of the elastic plug 200 is larger than the outer wall diameter of the second end D of the elastic plug 200, and the outer wall of the second end D of the elastic plug 200 is formed with an inclined second guide surface 240. It should be noted that in this embodiment, the outer wall diameter of the first end C of the elastic plug 200 is larger than the diameter of the mounting hole 310 of the structural member 300, and the second end D of the elastic plug 200 can pass through the mounting hole 310 of the structural member 300. By providing the second guide surface 240, the second end D of the elastic plug 200 can pass through the mounting hole 310 of the structural member 300 under the guidance of the second guide surface 240, which saves time and effort.

[0054] It should be noted that, in this embodiment, the first end C and the second end D of the elastic plug 200 are arranged opposite to each other in the height direction H3 of the elastic plug 200. Specifically, the first end C of the elastic plug 200 may be as follows: Figure 2 The upper end shown in FIG. 1 is the upper end, and the second end D is the lower end; vice versa is also possible, and this embodiment does not impose any specific limitation on this.

[0055] In a specific embodiment, the second guide surface 240 is at an angle of 45° to 75° relative to the center line of the pipeline 100. This not only ensures that the second end D of the elastic plug 200 will not be deformed too much under the pressure of the wall 311 of the mounting hole 310 when passing through the mounting hole 310 of the structural member 300, thereby saving more effort, but also ensures that the volume of the second end D of the elastic plug 200 will not be too small, so that after the elastic plug 200 is passed through the mounting hole 310 of the structural member 300, it will not affect the force of the second end D of the elastic plug 200 on the structural member 300, thereby ensuring the sealing effect of the elastic plug 200 and the mounting hole 310 of the structural member 300. In a specific embodiment, as Figure 2 As shown, the second guide surface 240 forms an angle of 60° with respect to the center line of the pipeline 100 .

[0056] In a specific embodiment, Figure 2As shown, the second end D of the elastic plug 200 is formed with a retreat groove 250 opening toward the end face of the second end D, and the retreat groove 250 is located between the second guide surface 240 and the inner wall surface of the elastic plug 200. In this way, when the second end D of the elastic plug 200 passes through the mounting hole 310 of the structural member 300, the second end D of the elastic plug 200 will be deformed under the pressure of the wall surface 311 of the mounting hole 310. The second end D of the elastic plug 200 is provided with a retreat groove 250 located between the second guide surface 240 and the inner wall surface of the elastic plug 200 and opening toward the end face of the second end D, which can ensure that the second end D of the elastic plug 200 has sufficient deformation space, can stably pass through the installation of the structural member 300, and reduce assembly resistance, reduce assembly difficulty, and improve assembly efficiency.

[0057] In a specific embodiment, Figure 2 As shown, the cross section of the retreat groove 250 is trapezoidal. Not only is the regular shape convenient for processing and manufacturing, but also it can ensure that the retreat groove 250 has sufficient space to the greatest extent, so that the second end D of the elastic plug 200 has sufficient deformation space in the process of passing through the mounting hole 310 of the structural member 300, thereby reducing the difficulty of assembly and improving the assembly efficiency.

[0058] In a specific embodiment, a pressing portion 280 is formed on the end surface of the first end C of the elastic plug 200. The pressing portion 280 may be located only on one circumference of the end surface of the first end C of the elastic plug 200, or may be located on the entire end surface of the first end C of the elastic plug 200. The specific structure of the pressing portion 280 may be a plurality of protrusions, and the shape of the protrusions may be circular or square. The specific embodiment does not limit this, and it is convenient to increase the friction force. By providing the pressing portion 280, it is convenient for the installer to apply a force to the pressing portion 280 to seal and engage the elastic plug 200 with the structural member 300.

[0059] In a specific embodiment, a through hole is provided inside the elastic plug 200, and the inner wall of the through hole is interference fit with the outer wall of the pipeline 100, that is, the inner diameter of the through hole of the elastic plug 200 is smaller than the outer diameter of the pipeline 100, and the inner wall of the through hole includes a linear clamping portion 260 and an inclined clamping portion 270 inclined toward the axis of the through hole. The elastic plug 200 is sealed and clamped to the outer wall of the pipeline 100 through the linear clamping portion 260 and the inclined clamping portion 270. In this embodiment, the inner diameter of the through hole of the elastic plug 200 is smaller than the outer diameter of the pipeline 100, so that the elastic plug 200 can be firmly clamped to the outer wall of the pipeline 100 through the linear clamping portion 260 and the inclined clamping portion 270, so that the pipeline 100 and the elastic plug 200 are integrated and sealed through a simple structure. In addition, the edges on both sides of the through hole of the elastic plug 200 can be set to be rounded.

[0060] In a specific embodiment, the inclined clamping portion 270 forms an angle of 15° to 45° with the axis of the through hole. This can ensure the sealing clamping effect of the elastic plug 200 and the outer wall of the pipeline 100, and can ensure that the elastic plug 200 does not need to produce excessive deformation during the assembly of the pipeline 100 and the elastic plug 200, thereby reducing the difficulty of assembly and improving the assembly efficiency. In a specific embodiment, the inclined clamping portion 270 forms an angle of 30° with the axis of the through hole of the elastic plug 200.

[0061] In this embodiment, the thickness of the annular sealing groove 210 is greater than the thickness of the structural member 300 , and experiments show that the elastic plug 200 can adapt to the structural member 300 with a thickness of 0.7 mm to 2 mm.

[0062] The assembly steps include: when assembling the sealing structure of the pipeline and the plug integrated with the structural member 300, firstly, one end of the pipeline 100 in the sealing structure is passed through the mounting hole 310 of the structural member 300, and the elastic plug 200 is placed at a position close to the mounting hole 310, at which time the second end D of the elastic plug 200 is close to the mounting hole 310. Then, the two ends of the pipeline 100 can be connected to the parts to be connected respectively, and then the assembler can align the thumbs of both hands with the first end C of the elastic plug 200 (i.e., Figure 8 to Figure 10 The pressing portion 280 on the upper end of the elastic plug 200 shown in FIG. 1 is pressed hard, and the second end D of the elastic plug 200 (i.e., Figure 8 to Figure 10 The lower end of the elastic plug 200 shown in the figure will first contact and then squeeze the periphery of the mounting hole 310. The outer wall surface of the second end D of the elastic plug 200 will shrink and deform under the squeezing of the wall surface 311 of the mounting hole 310, so that the second end D of the elastic plug 200 gradually deforms in the direction away from the wall surface 311 of the mounting hole 310, and the elastic plug 200 gradually enters the mounting hole 310. When the second end D of the elastic plug 200 completely penetrates the mounting hole 310, as shown in FIG. Figure 8 to Figure 10 As shown, the outer edge of the second end D of the elastic plug 200 will expand on the lower surface 330 of the structural member 300 and be closely attached to the lower surface 330 of the structural member 300. At this time, the lower wall surface 213 of the annular sealing groove 210 is flush with the lower surface 330 of the structural member 300, and the inner wall surface 211 of the annular sealing groove 210 will also be deformed and flush with the wall surface 311 of the mounting hole 310 under the pressure; the lip edge 220 of the elastic plug 200 will gradually deform and expand outward under the support of the upper surface 320 of the structural member 300, and be flush with the upper surface 320 of the structural member 300. The three-layer sealing structure of the lip 220 and the upper surface 320 of the structural member 300, the lower wall 213 of the annular sealing groove 210 and the lower surface 330 of the structural member 300, and the inner wall 211 of the annular sealing groove 210 and the wall 311 of the mounting hole 310 forms a mutually clamping force, so that the elastic plug 200 is stably fixed on the structural member 300.

[0063] Example 2

[0064] The automobile provided by the utility model includes the sealing structure and structural member 300 of the pipeline and plug integration in embodiment 1. In a specific embodiment, the structural member is a body sheet metal. The pipeline can be a cooling pipeline, and a coolant can flow inside, which can be connected to a radiator or a component that needs to be cooled, such as an engine, a battery, etc.

[0065] After the sealing structure is assembled in the hole of the body sheet metal, the cooling pipes can be connected to the components to be cooled arranged on the upper and lower bodies respectively to meet the cooling needs of the whole vehicle, and can also be sealed and connected to the body sheet metal holes. When the vehicle quickly passes through harsh roads such as puddles, it can effectively block the water, impurities and noise splashed from the lower body from entering the upper body cabin, protecting the carpet, sound insulation pads, shock-absorbing pads and floors in the car from damage, greatly enhancing the passengers' car experience, and freeing up space for the arrangement of other components, which is conducive to the lightweight of the whole vehicle.

[0066] The above is an explanation of the implementation mode of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation mode. On the contrary, the purpose of introducing the utility model in conjunction with the implementation mode is to cover other options or modifications that may be extended based on the claims of the present utility model. In order to provide a deep understanding of the present utility model, the above description will include many specific details. The present utility model can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present utility model, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0067] It should be noted that in this specification, similar reference numerals and letters denote similar items in the above-mentioned drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0068] The orientation or position relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0069] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0070] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0071] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A sealing structure integrating pipeline and plugging, characterized in that: include: A pipeline and an elastic plug; wherein the elastic plug is sleeved on the outer wall surface of the pipeline and is connected to the outer wall surface of the pipeline in an interference sealing manner; In addition, an annular sealing groove is provided on the outer wall surface of the elastic plug, and the elastic plug is configured to be able to be passed through a mounting hole of a structural member, and to be sealed and clamped with a portion of the structural member located around the mounting hole through the annular sealing groove, wherein the inner wall surface of the annular sealing groove is interference fit with the wall surface of the mounting hole, and in the wall thickness direction of the structural member, a portion of the structural member located around the mounting hole is elastically clamped in the annular sealing groove.

2. The pipeline and plug integrated sealing structure according to claim 1, characterized in that: The outer wall surface of the first end of the elastic plug is formed with an arc-shaped lip edge, the lip edge is connected to the side wall surface of the annular sealing groove close to the first end of the elastic plug, and the bottom surface of the end surface of the lip edge away from the first end of the elastic plug is flush with the other side wall surface of the annular sealing groove; When the elastic plug is passed through the mounting hole of the structural component, in the wall thickness direction of the structural component, the bottom surface of the lip elastically abuts against the first side surface of the portion of the structural component located around the mounting hole, and the other side wall surface of the annular sealing groove elastically abuts against the second side surface of the portion of the structural component located around the mounting hole.

3. The pipeline and plug integrated sealing structure as claimed in claim 2, characterized in that: An inclined first guiding surface is formed between the lip and the one side wall surface of the annular sealing groove, and the cross section of the annular sealing groove is trapezoidal.

4. The pipeline and plug integrated sealing structure as claimed in claim 3, characterized in that: The elastic plug is in an annular shape, the outer wall diameter of the first end of the elastic plug is larger than the outer wall diameter of the second end of the elastic plug, and the outer wall of the second end of the elastic plug is formed with an inclined second guide surface.

5. The pipeline and plug integrated sealing structure as claimed in claim 4, characterized in that: The second end of the elastic plug is formed with a retreat groove opening toward the end surface of the second end, and the retreat groove is located between the second guide surface and the inner wall surface of the elastic plug.

6. The pipeline and plug integrated sealing structure according to claim 5, characterized in that: The cross section of the retreat groove is trapezoidal.

7. The pipeline and plug integrated sealing structure according to claim 6, characterized in that: A pressing portion is formed on an end surface of the first end of the elastic plug.

8. The pipeline and plug integrated sealing structure according to any one of claims 1 to 7, characterized in that: A through hole is opened inside the elastic plug, and the inner wall surface of the through hole is interference fit with the outer wall surface of the pipeline, and the inner wall surface of the through hole includes a straight clamping portion and an inclined clamping portion inclined toward the axis of the through hole, and the elastic plug is sealed and clamped to the outer wall surface of the pipeline through the straight clamping portion and the inclined clamping portion.

9. A car, characterized in that: include: A sealing structure and structural member integrating a pipeline and a plug as claimed in any one of claims 1 to 8.

10. The automobile according to claim 9, characterized in that The structural member is a body sheet metal.

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