Pipeline through-hole sealing sleeve, pipeline through-hole sealing structure and vehicle

Abstract

This utility model relates to the field of installing cables, wires, pipes, or their protective conduits on or inside vehicles, and particularly to a pipe through-hole sealing sleeve, a pipe through-hole sealing structure, and a vehicle. The pipe through-hole sealing sleeve includes a sleeve body, which comprises a pipe sealing mating section and a through-hole sealing mating section. A front flange and a rear flange are spaced apart on the through-hole sealing mating section, forming an annular groove between them. A deformation groove, an annular groove surrounding the center of the sleeve body, is provided on the rear sidewall of the front flange. The radial outer edge of the front flange forms a skirt structure for sealing mating with the corresponding through-hole. In use, the skirt structure can adapt to substrates of different thicknesses by varying the amount of deformation. The deformation groove also thins a portion of the front flange, making it easier to deform and thus reducing installation resistance and improving installation convenience.

Description

Technical Field

[0001] This utility model relates to the field of installing cables or wires, pipes or their protective pipes on or inside vehicles, and in particular to a pipe through-hole sealing sleeve, a pipe through-hole sealing structure and a vehicle. Background Technology

[0002] Buses have various compartments depending on their purpose, some of which are sealed and require waterproofing and dustproofing. Often, pipelines enter these sealed compartments from the floor, necessitating the installation of sealing structures at the openings. These pipeline sealing structures effectively prevent mud, water, and dust from entering the vehicle during operation, while also providing support and securing for the pipelines.

[0003] As a typical sealing method, the sealing of bus pipelines passing through the floor usually adopts a sealing structure of applying sealant and sponge rings at the through-hole. This structure has the following disadvantages: ① After the pipeline passes through the opening in the floor, workshop workers need to apply sealant to the gap between the pipeline and the opening on both sides of the floor. This process requires going back and forth between the inside and outside of the vehicle. After applying the sealant, to prevent sealant dripping, sponge rings need to be used to stick and fix it at the sealant application points on both sides of the floor. This involves workers doing difficult operations such as looking up, which is time-consuming and labor-intensive, affecting the overall pipeline assembly efficiency; ② Because the sealant application is done manually by workers, the amount of sealant applied and the appearance after application are inconsistent. The appearance consistency is not easy to guarantee, and after the sponge rubber ring is applied, the sealant piles up on the floor in an irregular cone shape and is higher than the floor, which is unsightly; ③ During the sealant application stage, workers cannot ensure that the pipeline is in the center of the opening. In most cases, the pipeline is close to the side of the opening and in direct contact with the floor. During long-term vehicle operation, road bumps can cause the sealant to loosen, and the pipeline will rub directly against the floor, increasing the safety risk; ④ After the vehicle reaches a certain service life, some pipelines need to be replaced. When replacing them, the original sealant needs to be removed and the sealant needs to be reapplied. The whole replacement process is cumbersome and the maintenance is inconvenient.

[0004] Patent application JP2016067175A, published on April 28, 2016, discloses a through-hole sealing ring for sealing through-holes in pipelines. Specifically, the ring includes a sleeve with a perforation for the pipeline to pass through. A pipeline sealing section is located at one end of the sleeve, allowing for a sealing engagement with the pipeline passing through it. A through-hole sealing section is located at the other end of the sleeve, and the through-hole sealing section and the pipeline sealing section are connected by a tapered transition. A groove is provided on the through-hole sealing section, with one side of the groove wall near the pipeline sealing section forming an upper flange and the other side forming a lower flange. The lower flange is an inclined flange to allow for a tight sealing engagement with plates of different thicknesses. During use, the pipeline passes through the pipeline sealing section and is thus sealed. The through hole sealing section is inserted into the corresponding through hole, and the deformation of the lower flange can press the edge of the through hole to achieve the fixation of the protective ring and the sealing of the through hole.

[0005] The hole-protecting ring disclosed in the aforementioned patent application specification can solve a series of problems caused by glue sealing. However, when it is installed in the corresponding through hole, the lower flange needs to be axially compressed as a whole. Since the lower flange is relatively thick, the force required for this compression is large, resulting in greater installation resistance and inconvenience for the hole-protecting ring. Utility Model Content

[0006] The purpose of this utility model is to provide a pipeline through-hole sealing sleeve to solve the problem of inconvenient installation caused by the high installation resistance of existing protective rings.

[0007] Meanwhile, the purpose of this utility model is also to provide a pipeline through-hole sealing structure and vehicle using the above-mentioned pipeline through-hole sealing sleeve.

[0008] To solve the above problems, the pipeline through-hole sealing sleeve of this utility model adopts the following technical solution:

[0009] A pipeline through-hole sealing sleeve includes a sleeve body, the sleeve body including a pipeline sealing mating section and a through-hole sealing mating section for insertion into and fixedly sealing with the corresponding through-hole. With the end of the through-hole sealing mating section that is inserted into the corresponding through-hole as the front end, a front flange and a rear flange are provided at intervals on the through-hole sealing mating section, and an annular groove is formed between the front flange and the rear flange. A deformation groove is provided on the rear side wall of the front flange, the deformation groove being an annular groove surrounding the center of the sleeve body. The radial outer edge of the front flange forms a skirt structure for sealing with the hole edge of the corresponding through-hole.

[0010] Furthermore, the groove wall on the side of the deformable groove closest to the center of the sleeve is flush with the bottom of the annular groove in the radial direction of the sleeve.

[0011] Furthermore, the shape of the projection of the deformation groove onto the sleeve axis is the same as the shape of the projection of the annular groove onto the sleeve axis.

[0012] Furthermore, the skirt structure forms a gradient structure that gradually thins from front to back.

[0013] Furthermore, the front flange is an umbrella-shaped flange, and its front side surface forms the top surface of the umbrella-shaped flange.

[0014] Furthermore, the projection of the front flange on the axial direction of the sleeve falls within the projection of the rear flange on the axial direction of the sleeve, and the sleeve as a whole forms a tower-shaped structure.

[0015] Furthermore, one end of the pipeline sealing section opposite to the through hole sealing section is provided with an annular rib, which constitutes a sealing ring structure.

[0016] Furthermore, the pipeline sealing section is an elastic fitting section.

[0017] Beneficial effects of pipeline through-hole sealing sleeves:

[0018] This utility model's pipeline through-hole sealing sleeve is an improved invention. Specifically, the sleeve body of this utility model can seal with the pipeline passing through its through-hole through its pipeline sealing mating section, and seal with the substrate where the through-hole is located through the through-hole sealing mating section, thereby achieving a blockage between the two sides of the substrate; because it uses a front flange and a rear flange to form an annular groove to mate with the edge of the through-hole, and the rear side wall of the front flange is provided with a deformation groove around the center of the sleeve body, the radial outer edge of the front flange forms a skirt structure for sealing with the edge of the corresponding through-hole. In use, the different deformation amounts of the skirt structure can adapt to substrates of different thicknesses. The deformation groove also thins a part of the front flange, making it easier to deform, thereby reducing installation resistance and improving installation convenience.

[0019] The pipeline through-hole sealing structure of this utility model adopts the following technical solution:

[0020] A pipeline through-hole sealing structure includes a pipeline, a pipeline through-hole sealing sleeve, and a base plate on which the pipeline through-hole sealing sleeve is located. The pipeline through-hole sealing sleeve includes a sleeve body, which includes a pipeline sealing mating section and a through-hole sealing mating section for insertion into and fixedly sealing with the corresponding through-hole. With the end of the through-hole sealing mating section that is inserted into the corresponding through-hole as the front end, a front flange and a rear flange are provided at intervals on the through-hole sealing mating section, forming an annular groove between the front flange and the rear flange. A deformation groove is provided on the rear sidewall of the front flange, which is an annular groove surrounding the center of the sleeve body. The radial outer edge of the front flange forms a skirt structure for sealing with the hole edge of the corresponding through-hole.

[0021] Furthermore, the groove wall on the side of the deformable groove closest to the center of the sleeve is flush with the bottom of the annular groove in the radial direction of the sleeve.

[0022] Furthermore, the shape of the projection of the deformation groove onto the sleeve axis is the same as the shape of the projection of the annular groove onto the sleeve axis.

[0023] Furthermore, the skirt structure forms a gradient structure that gradually thins from front to back.

[0024] Furthermore, the front flange is an umbrella-shaped flange, and its front side surface forms the top surface of the umbrella-shaped flange.

[0025] Furthermore, the projection of the front flange on the axial direction of the sleeve falls within the projection of the rear flange on the axial direction of the sleeve, and the sleeve as a whole forms a tower-shaped structure.

[0026] Furthermore, one end of the pipeline sealing section opposite to the through hole sealing section is provided with an annular rib, which constitutes a sealing ring structure.

[0027] Furthermore, the pipeline sealing section is an elastic fitting section.

[0028] The beneficial effects of pipeline through-hole sealing structures:

[0029] This utility model presents an improved pipeline through-hole sealing structure. Specifically, in this utility model's pipeline through-hole sealing structure, the sleeve body can seal with the pipeline passing through its through-hole through its pipeline sealing mating section, and seal with the substrate where the through-hole is located through the through-hole sealing mating section, thereby achieving a blockage between the two sides of the substrate. Since the annular groove formed by the front flange and rear flange mates with the edge of the through-hole, and a deformation groove surrounding the center of the sleeve body is provided on the rear side wall of the front flange, the radial outer edge of the front flange forms a skirt structure for sealing with the edge of the corresponding through-hole. In use, the different deformation amounts of the skirt structure can adapt to substrates of different thicknesses. The deformation groove also thins a portion of the front flange, making it easier to deform, thereby reducing installation resistance and improving installation convenience.

[0030] The vehicle of this utility model adopts the following technical solution:

[0031] A vehicle includes a pipeline through-hole sealing structure, the pipeline through-hole sealing structure including a pipeline, a pipeline through-hole sealing sleeve, and a base plate on which the pipeline through-hole sealing sleeve is located. The pipeline through-hole sealing sleeve includes a sleeve body, the sleeve body including a pipeline sealing mating section and a through-hole sealing mating section for insertion into and fixedly sealing with a corresponding through-hole. With the end of the through-hole sealing mating section that is inserted into the corresponding through-hole as the front end, a front flange and a rear flange are provided at intervals on the through-hole sealing mating section, and an annular groove is formed between the front flange and the rear flange. A deformation groove is provided on the rear side wall of the front flange, the deformation groove being an annular groove surrounding the center of the sleeve body. The radial outer edge of the front flange forms a skirt structure for sealing with the hole edge of the corresponding through-hole.

[0032] Furthermore, the groove wall on the side of the deformable groove closest to the center of the sleeve is flush with the bottom of the annular groove in the radial direction of the sleeve.

[0033] Furthermore, the shape of the projection of the deformation groove onto the sleeve axis is the same as the shape of the projection of the annular groove onto the sleeve axis.

[0034] Furthermore, the skirt structure forms a gradient structure that gradually thins from front to back.

[0035] Furthermore, the front flange is an umbrella-shaped flange, and its front side surface forms the top surface of the umbrella-shaped flange.

[0036] Furthermore, the projection of the front flange on the axial direction of the sleeve falls within the projection of the rear flange on the axial direction of the sleeve, and the sleeve as a whole forms a tower-shaped structure.

[0037] Furthermore, one end of the pipeline sealing section opposite to the through hole sealing section is provided with an annular rib, which constitutes a sealing ring structure.

[0038] Furthermore, the pipeline sealing section is an elastic fitting section.

[0039] Beneficial effects of vehicles:

[0040] This invention relates to an improved vehicle. Specifically, in the vehicle of this invention, the sleeve of the sealing sleeve in the pipeline through-hole sealing structure can seal with the pipeline passing through its through-hole through its pipeline sealing mating section, and seal with the substrate where the through-hole is located through the through-hole sealing mating section, thereby achieving the blocking between the two sides of the substrate; since the annular groove formed by the front flange and the rear flange is used to fit with the edge of the through-hole, and a deformation groove is provided on the rear side wall of the front flange around the center of the sleeve, the radial outer edge of the front flange forms a skirt structure for sealing with the edge of the corresponding through-hole. In use, the different deformation amounts of the skirt structure can adapt to substrates of different thicknesses. The deformation groove also thins a part of the front flange, making it easier to deform, thereby reducing installation resistance and improving installation convenience. Attached Figure Description

[0041] Figure 1 This is a perspective view of one embodiment of the pipeline through-hole sealing sleeve of this utility model;

[0042] Figure 2 yes Figure 1 Cross-sectional view of the sealing sleeve for the central pipeline through-hole;

[0043] Figure 3 yes Figure 1 The diagram shows the usage status (cross-section) of the pipeline through-hole sealing sleeve, which is also a structural schematic diagram of one embodiment of the pipeline through-hole sealing structure of this utility model.

[0044] In the diagram: 1. Sleeve body; 101. Perforation; 102. Pipeline sealing mating section; 103. Through hole sealing mating section; 104. Front flange; 105. Rear flange; 106. Annular groove; 107. Deformation groove; 108. Skirt structure; 109. Annular rib; 2. Pipeline; 3. Bus floor. Detailed Implementation

[0045] The features and performance of this utility model will be further described in detail below with reference to specific embodiments.

[0046] Compared to sealant sealing, using a sealing sleeve (also known as a hole protector ring) to seal pipeline through-holes offers advantages such as higher efficiency, better consistency, and easier installation. However, achieving universality for the sealing sleeve and further improving its installation convenience are issues that require further consideration. Regarding installation convenience, patent application JP2016067175A provides a solution by changing the angle of the corresponding flange to create a longer deformation arm, thereby reducing the resistance when pressing it into the corresponding through-hole during installation. However, the radial dimension of the flange itself is limited, so the effect of reducing the pressing resistance of the sealing sleeve into the through-hole using the above method is limited. This invention employs a different inventive concept: by thinning the corresponding flange at appropriate locations, it makes it easier to deform during pressing into the corresponding through-hole while maintaining basic sealing functionality, thus significantly reducing installation resistance.

[0047] Based on the above inventive concept, the specific implementation of the pipeline through-hole sealing sleeve of this utility model is as follows:

[0048] The pipeline through-hole sealing sleeve includes a sleeve body 1 with through holes 101 at both ends for a corresponding pipeline 2 to pass through. A pipeline sealing mating section 102 is provided on the sleeve body 1. This "pipeline sealing mating section" is the section that seals with the pipeline 2. It has a structure that can seal with the pipeline 2; for example, its diameter is smaller than the outer diameter of the pipeline 2, and the sealing structure is an interference fit structure, or it has a sealing ring structure. When the pipeline 2 passes through the pipeline sealing mating section 102, the pipeline sealing mating section 102 can mate with the outer circumferential surface of the pipeline 2 passing through the through hole, thus blocking the through hole 101 and sealing the pipeline 2 at that passing point.

[0049] The sleeve 1 also includes a through-hole sealing section 103 for insertion into and fixedly sealing with the corresponding through-hole, similar to the pipeline sealing section 102. The term "through-hole sealing section" refers to a section that can seal and cooperate with the through-hole to block the space at both ends of the through-hole. In use, the through-hole sealing section 103 is installed into the corresponding through-hole by insertion. With the end of the through-hole sealing section 103 that is inserted into the corresponding through-hole as the front end, a front flange 104 and a rear flange 105 are spaced apart on the through-hole sealing section 103. Both the front flange 104 and the rear flange 105 protrude radially along the sleeve 1, forming an annular groove 106 between them. The annular groove 106 can be engaged in the corresponding through-hole during use. At this time, the axial positioning of the through-hole sealing section 103 is achieved by the cooperation of the front flange 104 and the rear flange 105 with the edge of the through-hole. When the through-hole sealing section 103 is installed into the corresponding through-hole by insertion, the front side of the front flange 104 first contacts one end of the through-hole and is squeezed until the front flange 104 completely passes through the through-hole. Then, it will rebound under its own elastic force and stop with the hole edge on the other side of the through-hole through the rear side. At this time, the front side of the rear flange 105 stops with the corresponding side hole edge of the through-hole.

[0050] To facilitate the deformation of the front flange 104 to pass through the through hole, a deformation groove 107 is provided on the rear sidewall of the front flange 104. The deformation groove 107 is an annular groove surrounding the center of the sleeve. The radial outer edge of the front flange 104 forms a skirt structure 108 for sealing and engaging with the edge of the corresponding through hole. After the front flange 104 springs back and unfolds, the skirt structure 108 will press against the edge of the through hole, thereby achieving a seal. Since the skirt structure 108 has a certain length in the circumferential direction of the sleeve, the through hole sealing section 103 can be adapted to substrates of different thicknesses (such as bus floor 3), i.e., through holes of different lengths, by using different amounts of deformation in the axial direction of the skirt structure 108. In addition, by providing the deformation groove 107, the thickness of the front flange 104 at the deformation groove is reduced, making it easier to deform when compressed, thereby reducing the resistance when inserting the through hole sealing section 103 into the through hole, further facilitating the installation of the sleeve 1.

[0051] The deformation groove 107 is located on the rear side of the front flange 104, thus having a rearward-facing groove structure. The two groove walls are radially spaced along the sleeve 1, therefore one groove wall is closer to the center of the sleeve 1 than the other. Figure 1-3As shown, in a preferred embodiment, the groove wall of the deformable groove 107 near the center of the sleeve is flush with the bottom of the annular groove 106 in the radial direction of the sleeve. This effectively extends the width of the annular groove 106, allowing the through-hole sealing mating section 103 to be suitable for substrates with a wider thickness range, even when the rear sidewall of the front flange 104 is flat. Of course, if the purpose is only to reduce the installation resistance of the sealing sleeve, the deformable groove 107 can also be located at the middle position in the radial direction of the front flange, in which case the above-mentioned "flush" structure will no longer exist.

[0052] In addition, such as Figure 1-3 As shown, in order to ensure uniform deformation of the front flange throughout the circumferential direction, in a preferred embodiment, the shape of the projection of the deformation groove 107 onto the sleeve 1 axial direction is the same as the shape of the projection of the annular groove 106 onto the sleeve axial direction. It should be noted here that, although in Figure 1-3 In the embodiment shown, the shape of the projection of the deformation groove 107 on the axial direction of the sleeve body 1 is the same as the shape of the projection of the annular groove 106 on the axial direction of the sleeve body. However, those skilled in the art should understand that this design is not necessary for the present invention to solve the problem of high installation resistance of the sealing sleeve. Therefore, in other embodiments, the deformation groove 107 can be set to any shape, as long as it is arranged around the center of the sleeve body.

[0053] The wall thickness design of the skirt structure 108 will significantly affect its deformation resistance. Therefore, in a preferred embodiment, the skirt structure 108 forms a gradient structure that gradually thins from front to back. This gradient structure can be formed by the outer contour shape of its front flange 104, or by combining the outer contour shape of the front flange with the cross-sectional shape of the deformation groove (e.g., Figure 1-3 ).

[0054] To further facilitate the installation of the sealing sleeve, in a preferred embodiment, the front flange 104 is configured as an umbrella-shaped flange, with its front side forming the top surface of the umbrella-shaped flange. The pipeline sealing mating section 102 is located on the front side of the front flange, specifically at the center of the front flange 104. Based on this, as a more preferred embodiment, such as... Figure 1-3 As shown, the projection of the front flange 104 on the axial direction of the sleeve falls within the projection of the rear flange 105 on the axial direction of the sleeve, and the sleeve as a whole forms a tower-shaped (pagoda structure) structure.

[0055] To enable the pipeline sealing section to be compatible with pipelines of different diameters, in a preferred embodiment, the pipeline sealing section 102 is designed as an elastic fitting section; for example, the sleeve can be made entirely of silicone material. More preferably, an annular rib 109 is provided at one end of the pipeline sealing section 102 away from the through-hole sealing section, and this annular rib 109 forms a sealing ring structure. The design of the annular rib 109 also prevents the pipeline sealing section from being torn at this point and prevents the sleeve from scratching the pipeline at this point.

[0056] The specific implementation of the pipeline through-hole sealing structure of this utility model is as follows:

[0057] The pipeline through-hole sealing structure includes a pipeline, a pipeline through-hole sealing sleeve, and a base plate on which the pipeline through-hole sealing sleeve is located. The base plate is the vehicle floor, and the pipeline through-hole sealing sleeve is the pipeline through-hole sealing sleeve of this utility model. Since the structure and usage of the pipeline through-hole sealing sleeve have been described in detail above, they will not be repeated here.

[0058] The specific implementation method of the vehicle of this utility model is as follows:

[0059] The vehicle includes a pipeline through-hole sealing structure, wherein the pipeline through-hole sealing structure is the pipeline through-hole sealing structure of this utility model, and will not be described in detail here.

[0060] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A pipeline through-hole sealing sleeve, comprising a sleeve body, the sleeve body including a pipeline sealing mating section and a through-hole sealing mating section for insertion into and fixedly sealing with a corresponding through-hole, characterized in that, With the end of the through-hole sealing mating section that is inserted into the corresponding through-hole as the front end, a front flange and a rear flange are provided at intervals on the through-hole sealing mating section. An annular groove is formed between the front flange and the rear flange. A deformation groove is provided on the rear side wall of the front flange. The deformation groove is an annular groove surrounding the center of the sleeve. The radial outer edge of the front flange forms a skirt structure for sealing mating with the hole edge of the corresponding through-hole.

2. The pipeline through-hole sealing sleeve according to claim 1, characterized in that, The groove wall on the side of the deformable groove closest to the center of the sleeve is flush with the bottom of the annular groove in the radial direction of the sleeve.

3. The pipeline through-hole sealing sleeve according to claim 1 or 2, characterized in that, The shape of the projection of the deformation groove on the axial direction of the sleeve is the same as the shape of the projection of the annular groove on the axial direction of the sleeve.

4. The pipeline through-hole sealing sleeve according to claim 1 or 2, characterized in that, The skirt structure forms a gradient structure that gradually thins from front to back.

5. The pipeline through-hole sealing sleeve according to claim 1 or 2, characterized in that, The front flange is an umbrella-shaped flange, and its front side forms the top surface of the umbrella-shaped flange.

6. The pipeline through-hole sealing sleeve according to claim 5, characterized in that, The projection of the front flange on the axial direction of the sleeve falls within the projection of the rear flange on the axial direction of the sleeve, and the sleeve as a whole forms a tower-shaped structure.

7. The pipeline through-hole sealing sleeve according to claim 1 or 2, characterized in that, The pipeline sealing section has an annular rib at one end away from the through hole sealing section, which forms a sealing ring structure.

8. The pipeline through-hole sealing sleeve according to claim 1 or 2, characterized in that, The pipeline sealing section is an elastic fit section.

9. A pipeline through-hole sealing structure, comprising a pipeline, a pipeline through-hole sealing sleeve, and a substrate on which the pipeline through-hole sealing sleeve is located, characterized in that, The pipeline through-hole sealing sleeve is the pipeline through-hole sealing sleeve according to any one of claims 1-8.

10. A vehicle, including a pipeline through-hole sealing structure, characterized in that, The pipeline through-hole sealing structure is the pipeline through-hole sealing structure as described in claim 9.

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