Pipeline through-hole sealing rings, pipeline through-hole sealing structures, and vehicles

Abstract

This utility model relates to the field of devices for allowing pipes to pass through floors, and particularly to a pipe through-hole sealing ring, a pipe through-hole sealing structure, and a vehicle. The pipe through-hole sealing ring includes a ring body with an insertion end at its front end for insertion into a corresponding through-hole. A stop structure is provided after the insertion end for engagement with the through-hole's edge. On the outer wall of the ring body, between the insertion end and the stop structure, are fixed sealing teeth with a serrated cross-section for interference sealing with the inner wall of the through-hole. The front face of the serrations is positioned further back than the back face. On the inner wall of the ring body, between the insertion end and the stop structure, is an inner convex ring for sealing engagement with the pipe passing through. Using this pipe through-hole sealing ring eliminates the need for any additional sealant application, offering the advantage of ease of use.

Description

Technical Field

[0001] This utility model relates to the field of devices for passing pipes through the floor, and in particular to a pipe through-hole sealing ring, a pipe through-hole sealing structure, and a vehicle. Background Technology

[0002] Currently, the floor penetrations of the water heating pipes in bus radiators are typically sealed using sealant. After the pipes pass through the penetrations, sealant is applied to seal the floor penetrations. While this method can adapt to various sealing conditions, the sealant application requires skilled workers to control the sealing process. Uneven sealant application can easily occur, leading to leakage risks. Furthermore, the sealant is difficult to mold and requires manual shaping by workers, making it difficult to clean once it gets on their hands. In some areas, sealant application needs to be done under the bus, causing discomfort for workers.

[0003] The patent specification with authorization announcement number CN204267892U and announcement date of April 15, 2015, discloses a pipeline through-hole protection component. This component is actually a rubber ring, comprising a ring body with three segments of reverse teeth (serrated cross-section) on its outer circumference. An outer sealing ring is located at one end of the ring body, and an inner sealing ring at the other end. According to the patent specification, when installing the pipeline through-hole protection component, the ring body is first pressed into the hole (through-hole) of the component through which the pipeline will pass, ensuring proper alignment so that the outer sealing ring fits snugly against the opening of the component. The pipeline is then inserted through the inner hole of the ring body. After the pipeline is inserted, expanding foam is used to fill the small gaps in the inner hole to achieve protection and sealing.

[0004] In the pipeline through-hole protection component disclosed in the aforementioned patent specification, the barbs act as barbs, engaging with the edges of both ends of the through-hole to restrict the circumferential movement of the rubber ring body. This only serves to fix the rubber ring body; the sealing between the rubber ring body and the component being traversed is achieved by the compression between the outer sealing ring and the component, while the sealing between the pipeline and the rubber ring body is achieved by applying foam sealant. However, in practical applications, due to factors such as vehicle bumps, the rubber ring body may experience slight axial displacement within the corresponding through-hole. This slight displacement is sufficient to create a gap between the outer sealing ring and the component, leading to seal failure. Furthermore, sealant application still suffers from low efficiency and inconvenient operation. Utility Model Content

[0005] The purpose of this utility model is to provide a pipe through hole sealing ring to solve the problems of poor sealing reliability and inconvenience of use of existing pipe through hole sealing rings.

[0006] Meanwhile, the purpose of this utility model is also to provide a pipeline through-hole sealing structure and a vehicle that uses the above-mentioned pipeline through-hole sealing ring.

[0007] To solve the above problems, the pipe through-hole sealing ring of this utility model adopts the following technical solution:

[0008] A pipe through-hole sealing ring includes a ring body. The front end of the ring body is an insertion end for insertion into the corresponding through-hole. A stop structure is provided after the insertion end for engagement with the through-hole edge. On the outer wall surface of the ring body, between the insertion end and the stop structure, there is a fixed sealing ring tooth with a serrated cross-section for interference sealing engagement with the inner wall of the through-hole. The front face of the serration is positioned further back than the back face. On the inner wall surface of the ring body, between the insertion end and the stop structure, there is an inner convex ring for sealing engagement with the pipe through which it passes.

[0009] Furthermore, in the axial direction of the rubber ring body, the fixed sealing ring teeth are staggered from the inner convex ring.

[0010] Furthermore, there are two or more fixed sealing ring teeth arranged along the axial direction of the rubber ring body.

[0011] Furthermore, there are two or more inner convex rings arranged along the axial direction of the rubber ring body.

[0012] Furthermore, the cross-section of the inner convex ring is rectangular.

[0013] Furthermore, the rear end of the inner hole of the rubber ring body is provided with a guide cone surface for guiding the inserted tube.

[0014] Furthermore, the length between the front end of the rubber ring body and the stop structure is greater than the length of the adapted through hole.

[0015] Furthermore, the stop structure is an outer flange located at the rear end of the rubber ring body.

[0016] Beneficial effects of the pipe through-hole sealing ring: The pipe through-hole sealing ring of this utility model is a pioneering invention. Specifically, a stop structure is set after the insertion end of the ring body for cooperating with the stop edge of the through-hole. A fixed sealing ring with a serrated cross-section is set between the insertion end and the stop structure for interference sealing with the inner wall of the through-hole. In use, the front end of the ring body can be directly pressed into the corresponding through-hole. During this process, the stop structure will limit the pressing depth, preventing the ring body from passing completely forward through the through-hole. At the same time, the fixed sealing ring will have an interference sealing fit with the hole wall. Since the front of the serration is set further back than the back of the serration, this is equivalent to forming a barb structure, which will provide greater resistance to the retraction of the ring body, thereby ensuring that the ring body does not retract after installation. By providing an inner convex ring on the inner wall of the rubber ring body between the insertion end and the stop structure for sealing with the passing pipeline, a direct sealing fit between the pipelines can be achieved. Simultaneously, a radial force is generated on the portion of the rubber ring body with the fixing sealing ring teeth, resulting in a tighter fit between the fixing sealing ring teeth and the hole wall, optimizing the fixing and sealing effect. Using this pipeline through-hole sealing rubber ring eliminates the need for any additional sealant application, offering the advantage of ease of use.

[0017] The pipeline through-hole sealing structure adopts the following technical solution:

[0018] A pipe through-hole sealing structure includes a pipe, a pipe through-hole sealing ring, and a substrate on which the pipe through-hole sealing ring is located. The pipe through-hole sealing ring includes a ring body, the front end of which is an insertion end for insertion into the corresponding through-hole. A stop structure is provided after the insertion end for engagement with the through-hole edge. On the outer wall surface of the ring body, between the insertion end and the stop structure, there is a fixed sealing ring tooth with a serrated cross-section for interference sealing engagement with the inner wall of the through-hole. The front face of the serration is positioned further back than the back face. On the inner wall surface of the ring body, between the insertion end and the stop structure, there is an inner convex ring for sealing engagement with the pipe through which it passes.

[0019] Furthermore, in the axial direction of the rubber ring body, the fixed sealing ring teeth are staggered from the inner convex ring.

[0020] Furthermore, there are two or more fixed sealing ring teeth arranged along the axial direction of the rubber ring body.

[0021] Furthermore, there are two or more inner convex rings arranged along the axial direction of the rubber ring body.

[0022] Furthermore, the cross-section of the inner convex ring is rectangular.

[0023] Furthermore, the rear end of the inner hole of the rubber ring body is provided with a guide cone surface for guiding the inserted tube.

[0024] Furthermore, the length between the front end of the rubber ring body and the stop structure is greater than the length of the adapted through hole.

[0025] Furthermore, the stop structure is an outer flange located at the rear end of the rubber ring body.

[0026] Beneficial effects of the pipe through-hole sealing structure: The pipe through-hole sealing structure of this utility model is an improved invention. Specifically, a stop structure for cooperating with the through-hole edge is set after the insertion end of the sealing ring body. A fixed sealing ring tooth with a serrated cross-section is set between the insertion end and the stop structure for interference sealing with the inner wall of the through-hole. In use, the front end of the sealing ring body can be directly pressed into the corresponding through-hole. During this process, the stop structure will limit the pressing depth, preventing the sealing ring body from passing completely forward through the through-hole. At the same time, the fixed sealing ring tooth will have an interference sealing fit with the hole wall. Since the front of the serrated tooth is set further back than the back of the tooth, this is equivalent to forming a barb structure, which will provide greater resistance to the retraction of the sealing ring body, thereby ensuring that the sealing ring body does not retract after installation. By providing an inner convex ring on the inner wall of the rubber ring body between the insertion end and the stop structure for sealing with the passing pipeline, a direct sealing fit between the pipelines can be achieved. Simultaneously, a radial force is generated on the portion of the rubber ring body with the fixing sealing ring teeth, resulting in a tighter fit between the fixing sealing ring teeth and the hole wall, optimizing the fixing and sealing effect. Using this pipeline through-hole sealing rubber ring eliminates the need for any additional sealant application, offering the advantage of ease of use.

[0027] The vehicle adopts the following technical solutions:

[0028] A vehicle includes a pipe through-hole sealing structure, the pipe through-hole sealing structure including a pipe, a pipe through-hole sealing ring, and a base plate on which the pipe through-hole sealing ring is located. The pipe through-hole sealing ring includes a ring body, the front end of the ring body being an insertion end for insertion into the corresponding through-hole, and a stop structure for engagement with the through-hole edge after the insertion end. On the outer wall surface of the ring body, between the insertion end and the stop structure, there is a fixed sealing ring tooth with a serrated cross-section for interference sealing engagement with the inner wall of the through-hole, the front face of the serration being positioned further back than the back face. On the inner wall surface of the ring body, between the insertion end and the stop structure, there is an inner convex ring for sealing engagement with the pipe through which it passes.

[0029] Furthermore, in the axial direction of the rubber ring body, the fixed sealing ring teeth are staggered from the inner convex ring.

[0030] Furthermore, there are two or more fixed sealing ring teeth arranged along the axial direction of the rubber ring body.

[0031] Furthermore, there are two or more inner convex rings arranged along the axial direction of the rubber ring body.

[0032] Furthermore, the cross-section of the inner convex ring is rectangular.

[0033] Furthermore, the rear end of the inner hole of the rubber ring body is provided with a guide cone surface for guiding the inserted tube.

[0034] Furthermore, the length between the front end of the rubber ring body and the stop structure is greater than the length of the adapted through hole.

[0035] Furthermore, the stop structure is an outer flange located at the rear end of the rubber ring body.

[0036] Beneficial effects of this invention: The vehicle of this utility model is an improved invention. Specifically, by setting a stop structure after the insertion end of the sealing ring body for cooperating with the stop along the hole edge, and setting a fixed sealing ring tooth with a serrated cross-section between the insertion end and the stop structure for interference sealing with the inner wall of the hole, the front end of the sealing ring body can be directly pressed into the corresponding hole during use. During this process, the stop structure will limit the pressing depth, preventing the sealing ring body from passing completely forward through the hole. At the same time, the fixed sealing ring tooth will have an interference sealing fit with the hole wall. Since the front of the serrated tooth is set further back than the back of the tooth, this is equivalent to forming a barbed structure, which will provide greater resistance to the retraction of the sealing ring body, thereby ensuring that the sealing ring body does not retract after installation. By providing an inner convex ring on the inner wall of the rubber ring body between the insertion end and the stop structure for sealing with the passing pipeline, a direct sealing fit between the pipelines can be achieved. Simultaneously, a radial force is generated on the portion of the rubber ring body with the fixing sealing ring teeth, resulting in a tighter fit between the fixing sealing ring teeth and the hole wall, optimizing the fixing and sealing effect. Using this pipeline through-hole sealing rubber ring eliminates the need for any additional sealant application, offering the advantage of ease of use. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of one embodiment of the pipe through-hole sealing ring of this utility model;

[0038] Figure 2 This is a schematic diagram of one embodiment of the pipeline through-hole sealing structure of this utility model.

[0039] In the diagram: 1. Floor; 2. Rubber ring body; 201. Stop structure; 202. Fixed sealing ring teeth; 203. Inner convex ring; 204. Guide cone surface. Detailed Implementation

[0040] The features and performance of this utility model will be further described in detail below with reference to specific embodiments.

[0041] In situations requiring sealing, such as in sealed compartments of buses, pipes for components like radiators sometimes need to pass through. In these cases, a through-hole is created in the floor 1 of the sealed compartment. After the pipe passes through the through-hole, it needs to be sealed to restore the sealed compartment's airtightness and prevent dust, water, and other debris from entering. However, traditional sealant sealing suffers from low efficiency, poor consistency, and inconvenient operation. Compared to sealant sealing, using a sealing ring to seal the through-hole is a more ideal method. However, the reliability (anti-loosening ability), sealing performance, and ease of installation of the sealing ring are all issues that require special attention. This invention addresses this by setting a bidirectional limiting structure on the outside of the sealing ring body 2 and a structure inside that seals with the pipe. Reliable installation and sealing can be achieved simply by pressing it into the through-hole and allowing the pipe to pass through. Based on this inventive concept, this invention proposes a pipe through-hole sealing ring, a pipe through-hole sealing structure, and a vehicle-specific technical solution.

[0042] Based on the above inventive concept, the specific implementation of the pipe through-hole sealing ring of this utility model is as follows:

[0043] like Figure 1-2 As shown, the pipe through-hole sealing ring includes a ring body 2, which has a sleeve-like structure and can be made of materials with a certain degree of elasticity, such as silicone or rubber. During use, one end is inserted into the corresponding through-hole to achieve a fit. Typically, the end inserted into the through-hole during use, i.e., the insertion end, is defined as the front end.

[0044] At a position after the insertion end, a stop structure 201 is also provided on the outer wall surface of the rubber ring body 2. The stop structure is used to stop and cooperate with the hole edge of the corresponding through hole. Of course, the stop cooperation here means that the hole edge of the through hole blocks the stop structure 201, preventing the rubber ring body 2 from moving forward relative to the hole edge of the through hole.

[0045] A fixing sealing ring tooth 202 is provided on the outer wall surface of the rubber ring body 2 between the insertion end and the stop structure. The cross-sectional shape of the fixing sealing ring tooth 202 is sawtooth-shaped, with the front of the tooth positioned further back than the back of the tooth. Therefore, when the rubber ring body 2 retracts relative to the through hole, the fixing sealing ring tooth 202, which is in interference fit with the hole wall, will form a barb-like structure, preventing the rubber ring body 2 from retracting in the through hole. At the same time, the fixing sealing ring tooth 202 can also act as a sealing ring, achieving a sealing fit between the rubber ring body 2 and the hole wall.

[0046] In order to achieve a sealing fit with the pipes passing through it, an inner convex ring 203 is provided on the inner wall surface of the rubber ring body 2 between the insertion end and the stop structure 201 for sealing fit with the pipes passing through it.

[0047] When using the pipe through-hole sealing ring of this utility model to seal the pipe through-hole location, it can be installed in the following way:

[0048] First, the front end of the rubber ring body 2 is pressed into the corresponding through hole. During this process, the fixing sealing ring tooth 202 is compressed in the radial direction and forms a sealing fit with the hole wall of the through hole, thus preventing the rubber ring body 2 from exiting the through hole. When the insertion is in place, the stop structure 201 stops and fits with the hole edge of the through hole, and the rubber ring body 2 will not be able to move forward, thereby achieving axial bidirectional limiting of the rubber ring body 2.

[0049] After the rubber ring body 2 is installed into the through hole, the pipe can be passed through the central hole of the rubber ring body 2 from its rear end. At this time, the inner convex ring 203 on the inner wall of the rubber ring body 2 will form an interference fit with the outer wall of the pipe, forming a structure similar to a sealing ring. This not only fixes the pipe but also achieves a sealing fit with it. During this process, the friction between the pipe and the inner convex ring 203 will further drive the rubber ring body 2 to move forward slightly in the form of deformation, further improving its tightness with the through hole. In addition, the interference fit between the inner convex ring 203 and the pipe, and the interference fit between the fixing sealing ring teeth 202 and the through hole wall will be superimposed to a certain extent, thus forming a more reliable connection between the three.

[0050] As mentioned earlier, the interference fit between the inner convex ring 203 and the pipeline, and the interference fit between the fixed sealing ring tooth 202 and the through hole wall, will overlap to some extent. This overlap makes the connection of the three components more reliable. However, the degree of overlap should be controlled to avoid excessive resistance when the pipeline passes through the rubber ring body 2, increasing the difficulty of installation. Therefore, in a preferred embodiment, such as... Figure 1-2 As shown, in the axial direction of the rubber ring body 2, the fixed sealing ring tooth 202 and the inner convex ring 203 are staggered. This allows the inner convex ring 203 to expand and deform towards the space on one side of the fixed sealing ring tooth 202 when under pressure, obtaining a gentler resistance. Here, "staggered" means that when there is one fixed sealing ring tooth 202, the inner convex ring 203 is located on one or both sides of the fixed sealing ring tooth in the axial direction of the rubber ring body. When there are multiple fixed sealing ring teeth 202, the inner convex ring 203 can be located in front of the foremost fixed sealing ring tooth, behind the rearmost fixed sealing ring tooth, or between two fixed sealing ring teeth.

[0051] To achieve reliable connection and sealing with the substrate where the via is located, in a preferred embodiment, two or more fixing sealing ring teeth 202 are provided along the axial direction of the rubber ring body, for example in... Figure 1-2 In the illustrated embodiment, five fixed sealing ring teeth 202 are provided. It should be noted that, to improve sealing performance and increase the bonding force with the through-hole, the width of the fixed sealing ring teeth 202 can also be increased, in which case one fixed sealing ring tooth 202 is also feasible.

[0052] Similar to the principle of setting multiple fixed sealing ring teeth 202, in some preferred embodiments, two or more inner convex rings 203 are provided along the axial direction of the rubber ring body 2. Although it is also possible to set only one wider inner convex ring, this method of setting multiple inner convex rings 203 will form a seal at multiple locations along the axial direction of the pipeline, and will reduce the resistance to pipeline passage compared to setting only one wider inner convex ring.

[0053] As a preferred embodiment, the inner convex ring 203 has a rectangular cross-section. A rectangular cross-section of the inner convex ring 203 will create a larger contact surface with the pipeline, thereby achieving a better sealing effect. Of course, those skilled in the art should understand that in other embodiments, the cross-section of the inner convex ring 203 can also be arc-shaped, triangular, etc., as long as its height is designed to allow for an interference fit and sealing fit with the pipeline; further details are omitted here.

[0054] To facilitate the insertion of the tubing into the inner hole of the rubber ring body 2, in a preferred embodiment, the rear end of the inner hole of the rubber ring body 2 is provided with a guide cone surface 204 for guiding the inserted tubing. Figure 1 , 2 In the embodiment shown, the guide cone 204 is an inverted cone. In other embodiments, it can also be an inverted pyramid or the like, which only needs to guide the pipe during the initial insertion stage.

[0055] In a preferred embodiment, the length between the front end of the rubber ring body 2 and the stop structure 201 is greater than the length of the adapted through hole. In this case, when the rubber ring body 2 is installed in place, its front end will protrude through the through hole. At this time, the fixing sealing ring tooth 202 passing through the through hole will cooperate with the edge of the hole at the front end of the through hole, further preventing the rubber ring body from retracting.

[0056] In order to ensure that the stop structure 201 also plays a sealing role to a certain extent, in Figure 1-2In the illustrated embodiment, the stop structure 201 is an outer flange located at the rear end of the rubber ring body. The outer flange will fit against the edge of the through hole, sealing that location. Of course, those skilled in the art should understand that, regarding the technical problem to be solved by this invention, since the fixing sealing ring teeth 202 already seal the through hole, making the stop structure an outer flange is unnecessary. Therefore, in some embodiments, it can also be a dot-like protrusion or other structure on the rubber ring body.

[0057] The specific implementation method of the pipeline through-hole sealing structure of this utility model is as follows:

[0058] The pipeline through-hole sealing structure includes a pipeline, a pipeline through-hole sealing ring, and a base plate on which the pipeline through-hole sealing ring is located. The base plate is the floor 1 of a bus. The pipeline through-hole sealing ring is the pipeline through-hole sealing ring of this utility model. Since the structure and usage of the pipeline through-hole sealing ring have been described in detail above, they will not be repeated here.

[0059] The specific implementation method of the vehicle of this utility model is as follows:

[0060] 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.

[0061] 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 sealing ring for pipe through-holes, characterized in that, The device includes a rubber ring body. The front end of the rubber ring body is an insertion end for insertion into a corresponding through hole. A stop structure is provided after the insertion end for engagement with the through hole. On the outer wall surface of the rubber ring body, between the insertion end and the stop structure, there is a fixed sealing ring tooth with a serrated cross-section for interference sealing engagement with the inner wall of the through hole. The front face of the serration is positioned further back than the back face. On the inner wall surface of the rubber ring body, between the insertion end and the stop structure, there is an inner convex ring for sealing engagement with the pipe through which it passes.

2. The pipe through-hole sealing ring according to claim 1, characterized in that, In the axial direction of the rubber ring body, the fixed sealing ring teeth are staggered from the inner convex ring.

3. The pipe through-hole sealing ring according to claim 1 or 2, characterized in that, The fixed sealing ring teeth are arranged in two or more along the axial direction of the rubber ring body.

4. The pipe through-hole sealing ring according to claim 1 or 2, characterized in that, Two or more inner convex rings are provided along the axial direction of the rubber ring body.

5. The pipe through-hole sealing ring according to claim 1 or 2, characterized in that, The cross-section of the inner convex ring is rectangular.

6. The pipe through-hole sealing ring according to claim 1 or 2, characterized in that, The inner rear end of the rubber ring body is provided with a guide cone surface for guiding the inserted tube.

7. The pipe through-hole sealing ring according to claim 1 or 2, characterized in that, The length between the front end of the rubber ring body and the stop structure is greater than the length of the adapted through hole.

8. The pipe through-hole sealing ring according to claim 1 or 2, characterized in that, The stop structure is an outer flange located at the rear end of the rubber ring body.

9. A pipe through-hole sealing structure, comprising a pipe, a pipe through-hole sealing ring, and a substrate on which the pipe through-hole sealing ring is located, characterized in that, The pipe through-hole sealing ring is the pipe through-hole sealing ring as described in any one of claims 1-8.

10. A vehicle, including a pipe 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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