Sealing connection structure and vehicle

Abstract

The utility model provides a sealing connection structure and a vehicle, the sealing connection structure is applied to the vehicle, the sealing connection structure comprises a connecting piece, a sealing piece and a buckle, and the sealing piece is provided with a buckle hole; the buckle is connected with the buckle hole in a clamped mode so that the sealing piece can be connected with the connecting piece. Wherein the sealing piece comprises a first sealing part and a second sealing part which are connected, the second sealing part forms at least part of the buckling hole, and the hardness of the second sealing part is lower than that of the first sealing part. At least part of the buckle hole is formed by the second sealing part with the hardness lower than that of the first sealing part, so that in the process of installing the buckle into the buckle hole, the hardness of the second sealing part is lower than that of the first sealing part, and the elastic property of the second sealing part is superior to that of the first sealing part; in this way, in the process that an operator installs the buckle in the buckle hole, the buckle can be conveniently installed in the buckle hole, the buckle can be easily installed in place, and the assembling efficiency of the buckle can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a sealing connection structure and a vehicle. BACKGROUND

[0002] In a vehicle, for example, a C-pillar lower seam strip or a B-pillar lower seam strip of the vehicle, a connecting piece and a sealing piece of the vehicle are usually connected through buckling. A buckle hole for buckling is formed on the sealing piece. In order to play a good supporting role, the sealing piece usually has a large Shore hardness. Therefore, it is difficult for an operator to smoothly insert the buckle into the buckle hole, which may cause the buckle to be not installed in place and affect the assembly efficiency of the operator. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application provides a sealing connection structure to solve the problems of difficult buckle installation and low buckle assembly efficiency. The present application also provides a vehicle comprising the above sealing connection structure.

[0004] In order to achieve the above purpose, the present application provides the following technical solutions:

[0005] A sealing connection structure applied to a vehicle, comprising:

[0006] a connecting piece;

[0007] a sealing piece provided with a buckle hole;

[0008] a buckle connected with the sealing piece through the buckle hole;

[0009] wherein the sealing piece comprises a first sealing part and a second sealing part connected with each other, the second sealing part forms at least part of the buckle hole, and the hardness of the second sealing part is lower than that of the first sealing part.

[0010] Optionally, the second sealing part forms the complete buckle hole.

[0011] Optionally, the second sealing part forms part of the buckle hole, and the first sealing part forms the remaining part of the buckle hole.

[0012] Optionally, the sealing piece is a co-extrusion molded part.

[0013] Optionally, in the installation direction of the buckle, the cross-sectional area of the buckle hole decreases.

[0014] Optionally, in the buckling state, the buckle abuts against the wall surface of the buckle hole.

[0015] Optionally, the first sealing part and the second sealing part are made of ethylene-propylene-diene rubber or thermoplastic vulcanized rubber.

[0016] Optionally, the Shore hardness of the first sealing part is 60-90 degrees, and / or the density of the second sealing part is 0.5-0.8 g / cm 3 .

[0017] A vehicle comprising the sealing connection structure according to any one of the preceding items.

[0018] Optionally,

[0019] The sealing connection structure is a B-pillar lower seam strip of the vehicle, the sealing member further comprises a third sealing part capable of contacting a front side door of the vehicle, and the hardness of the third sealing part is the same as the density of the second sealing part.

[0020] and / or,

[0021] The sealing connection structure is a C-pillar lower seam strip of the vehicle, the sealing member further comprises a fourth sealing part capable of contacting a rear side door of the vehicle, and the hardness of the fourth sealing part is the same as the density of the second sealing part.

[0022] The sealing connection structure provided by the present application forms at least part of the buckle hole by the second sealing part with lower hardness than the first sealing part, so that the second sealing part has better elastic performance than the first sealing part when the buckle is installed in the buckle hole, which facilitates the installation of the buckle in the buckle hole, makes it easy to install the buckle in place, and improves the assembly efficiency of the buckle. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.

[0024] Figure 1 The structural schematic diagram of the sealing connection structure provided by the present embodiment;

[0025] Figure 2 The A-A sectional view of Figure 1

[0026] Figure 3 The structural schematic diagram of the sealing member, buckle and buckle hole in one embodiment;

[0027] Figure 4 The structural schematic diagram of the sealing member, buckle and buckle hole in another embodiment;​

[0028] Figure 5 Structure diagram of the rear door and the sealing connection structure.

[0029] Figures 1-5 In the middle:

[0030] 1-sealing connection structure, 2-rear door;

[0031] 11-connector, 12-seal, 13-buckle, 14-buckle hole;

[0032] 121-first sealing part, 122-second sealing part, 123-third sealing part, 124-fourth sealing part. DETAILED DESCRIPTION

[0033] The application provides a sealing connection structure to solve the problems of difficult buckle installation and low buckle assembly efficiency. The application also provides a vehicle comprising the sealing connection structure.

[0034] The technical solutions in the embodiments of the application will be clearly and completely described in the specification of the application combined with the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the application.

[0035] As Figures 1-5As shown, the sealing connection structure 1 provided by the embodiment of the present application is applied to a vehicle, especially a new energy vehicle, and can be any component connected through clamping in the vehicle. The sealing connection structure 1 mainly comprises a connecting piece 11, a sealing piece 12 and a buckle 13. Specifically, a buckle hole 14 is formed on the sealing piece 12 by drilling a hole on the sealing piece 12 with a drill bit. One end of the buckle 13 abuts against the connecting piece 11, and the other end of the buckle 13 is clamped with the buckle hole 14. In this way, the buckle 13 is clamped with the buckle hole 14 to facilitate the connection between the sealing piece 12 and the connecting piece 11. The sealing piece 12 comprises a first sealing part 121 and a second sealing part 122 connected with each other. The second sealing part 122 forms at least part of the buckle hole 14, that is, the buckle hole 14 is formed on the sealing piece 12, and at least part of the wall surface of the sealing piece 12 forming the buckle hole 14 is the second sealing part 122. On this basis, it is further ensured that the hardness of the second sealing part 122 is lower than that of the first sealing part 121. In the process of installing the buckle 13 into the buckle hole 14 to connect the connecting piece 11 and the sealing piece 12, the second sealing part 122 has better elastic performance because the hardness of the second sealing part 122 is lower than that of the first sealing part 121. Compared with the setting mode of forming the buckle hole 14 by the first sealing part 121, the setting mode of the embodiment is more convenient for installing the buckle 13 into the buckle hole 14. Therefore, the operator can easily put the buckle 13 into the buckle hole 14, thereby quickly installing the buckle 13 and the buckle hole 14.

[0036] It should be noted that the number of the buckle hole 14 is not limited here, and the buckle hole 14 can be one or more. Here, it is only required that at least part of the buckle hole 14 is formed by the second sealing part 122.

[0037] It should be further noted that the connecting piece 11 can be a plate-shaped piece, a block-shaped piece, a strip-shaped piece or the like.

[0038] The sealing connection structure 1 provided by the present application forms at least part of the buckle hole 14 by the second sealing part 122 having a hardness lower than that of the first sealing part 121. In the process of installing the buckle 13 into the buckle hole 14, the second sealing part 122 has better elastic performance than the first sealing part 121 because the hardness of the second sealing part 122 is lower than that of the first sealing part 121. Therefore, the operator can easily install the buckle 13 into the buckle hole 14 in the process of installing the buckle 13 into the buckle hole 14, and the buckle 13 can be easily installed in place, and the assembly efficiency of the buckle 13 can be improved.

[0039] In some embodiments, please refer to Figures 2 to 4, the second sealing part 122 forms the complete buckle hole 14. That is to say, when the sealing part 12 is provided with the buckle hole 14, it is ensured that the buckle hole 14 is formed on the second sealing part 122, that is, the second sealing part 122 forms all the walls of the buckle hole 14. In this way, the walls of the buckle hole 14 are all the second sealing part 122 with low hardness, so that the walls of the buckle hole 14 have high elasticity. Compared with the arrangement mode that part of the buckle hole 14 is the second sealing part 122, the operator can more easily install the buckle 13 into the buckle hole 14, and the deformation amount of the buckle hole 14 during the installation of the buckle hole 14 into the buckle hole 14 can be further improved, and the installation efficiency of the buckle 13 can be further improved.

[0040] In some embodiments, the second sealing part 122 forms part of the buckle hole 14, and the first sealing part 121 forms the remaining part of the buckle hole 14 (not shown in the figure); that is, part of the walls of the buckle hole 14 are formed by the first sealing part 121, and the remaining part of the walls of the buckle hole 14 are formed by the second sealing part 12; in other words, the buckle hole 14 is formed at the joint of the first sealing part 121 and the second sealing part 122. In this way, when the buckle 13 is installed into the buckle hole 14, the second sealing part 122 with low hardness can elastically deform, which also facilitates the installation of the buckle 13. In addition, after the buckle 13 is installed into the buckle hole 14, since part of the walls of the buckle hole 14 are formed by the first sealing part 121 with high hardness, when the buckle 13 has a tendency to move out of the buckle hole 14, the first sealing part 121 with high hardness can block the buckle 13, thereby preventing the buckle 13 from moving out of the buckle hole 14, so as to improve the stability of the buckle 13 and the buckle hole 14, and further improve the stability of the connection between the connecting piece 11 and the sealing part 12.

[0041] In addition, this can reduce the proportion of the second sealing part 122 in the sealing part 12, thereby improving the overall hardness of the sealing part 12, improving the structural strength of the sealing part 12, and improving the structural stability of the sealing part 12.

[0042] In some embodiments, the sealing part 12 is a co-extrusion molded part. That is, the first sealing part 121 and the second sealing part 122 are co-extrusion molded. Specifically, co-extrusion molding is a manufacturing process in which two or more melts pass through the same die or multiple dies under the synchronous operation of an extruder, enter the extrusion die under certain process requirements, and are extruded and molded by multiple layers or multiple materials under certain temperature conditions. In this way, the connection strength between the first sealing part 121 and the second sealing part 122 can be improved, the connection position of the first sealing part 121 and the second sealing part 122 can be prevented from being broken, and the stability of the overall structure of the sealing part 12 can be improved.

[0043] Furthermore, based on the above embodiment, the cross-sectional area of ​​the snap-fit ​​hole 14 decreases in the installation direction of the snap-fit ​​13. That is, the snap-fit ​​hole 14 is a tapered hole, so that the snap-fit ​​hole 14 can play a guiding role during the installation of the snap-fit ​​13 into the snap-fit ​​hole 14, which makes it easier to install the snap-fit ​​13 into the snap-fit ​​hole 14, further improving the installation efficiency of the snap-fit ​​13, and further preventing the snap-fit ​​13 from falling out of the snap-fit ​​hole 14.

[0044] It should be noted that, since the snap-fit ​​hole 14 is an opening in the seal 12 made by a drill bit, in this embodiment, a tapered drill bit is used to open the snap-fit ​​hole 14 in the seal 12 as a tapered hole.

[0045] It should also be noted that the installation direction of clip 13 is... Figure 2 The direction indicated by the middle arrow Y.

[0046] In some embodiments, please refer to Figures 2 to 4 When the buckle 13 and buckle hole 14 are engaged, the buckle 13 abuts against the wall of the buckle hole 14. That is, when the buckle 13 is installed into the buckle hole 14, the buckle 13 and the wall of the buckle hole 14 fit tightly together. This arrangement, through the zero-gap fit between the buckle 13 and the buckle hole 14, ensures that the buckle 13 and the buckle hole 14 are securely assembled and do not wobble, thereby improving the stability of the engagement between the buckle 13 and the buckle hole 14, and thus improving the stability of the connection between the connector 11 and the seal 12.

[0047] Of course, since the second sealing part 122 forms at least a portion of the snap-fit ​​hole 14, and the hardness of the second sealing part 122 is lower than that of the first sealing part 121, and the second sealing part 122 has a certain elastic deformation, the snap-fit ​​13 and the snap-fit ​​hole 14 can also be interference-fitted in the snap-fit ​​state. This can further improve the stability of the connection between the snap-fit ​​13 and the snap-fit ​​hole 14, thereby improving the stability of the connection between the connector 11 and the seal 12.

[0048] For example, the diameter of the buckle 13 is φ3.5mm, and the diameter of the buckle hole 14 is also φ3.5mm.

[0049] In some embodiments, the first sealing part 121 and the second sealing part 122 are ethylene propylene diene rubber or thermoplastic vulcanizate. Specifically, ethylene propylene diene rubber (EPDM) is a kind of high polymer synthetic material, which is made by copolymerization of ethylene, propylene and non-conjugated diene monomers. Ethylene propylene diene rubber has the advantages of strong weather resistance, excellent chemical resistance, stable mechanical properties, excellent electrical insulation, low cost, etc. Thermoplastic vulcanizate (TPV) is a kind of high polymer material with excellent performance, which has the advantages of good elasticity and compression resistance, excellent weather resistance and aging resistance, good wear resistance and chemical corrosion resistance, excellent processing performance, green environmental protection and recyclability, light specific gravity, uniform appearance quality, wide application temperature range, wide hardness application range, etc. In addition, ethylene propylene diene rubber can be recycled and reused by remelting and injection molding. The use of ethylene propylene diene rubber in the first sealing part 121 and the second sealing part 122 can save energy and improve economic benefits.

[0050] In some embodiments, the Shore hardness of the first sealing part 121 is 60-90 degrees. By ensuring that the hardness of the first sealing part 121 is within the above range, the first sealing part 121 can play a supporting role, improve the structural strength of the sealing member 12, avoid deformation of the first sealing part 121, and improve the stability of the connection between the sealing member 12 and the connecting member 11.

[0051] For example, the Shore hardness of the first sealing part 121 can be 60 degrees, 61 degrees, 62 degrees, 65 degrees, 70 degrees, 75 degrees, 80 degrees, 85 degrees, 88 degrees, 89 degrees, 90 degrees, etc.

[0052] In some embodiments, the density of the second sealing part 122 is 0.5-0.8 g / cm 3 . By ensuring that the density of the second sealing part 122 meets the above range, the hardness of the second sealing part 122 can be lower than that of the first sealing part 121, and the hardness of the second sealing part 122 is not too low to avoid the buckle 13 from being detached from the buckle hole 14 after being installed in the buckle hole 14, thereby improving the stability of the connection between the buckle 13 and the buckle hole 14.

[0053] For example, the density of the second sealing part 122 can be 0.5 g / cm 3 , 0.51 g / cm 3 , 0.52 g / cm 3 , 0.55 g / cm 3 , 0.6 g / cm 3 , 0.65 g / cm 3 , 0.7 g / cm 3 , 0.75 g / cm 3 , 0.8 g / cm 3 , 0.85 g / cm3 0.88g / cm 3 0.89 g / cm 3 0.9g / cm 3 etc.

[0054] A vehicle includes a sealing connection structure 1 as described above. The beneficial effects of the sealing connection structure 1 on the vehicle are described above and will not be repeated here.

[0055] It should be noted that vehicles can be classified by power source as electric vehicles, gasoline vehicles, hybrid vehicles, etc.; vehicles can be classified by purpose as sedans, SUVs, trucks, buses, vans, sports cars, pickup trucks, etc.; vehicles can also be construction machinery such as excavators, loaders, bulldozers, road rollers, cranes, concrete mixers, bulldozers, drilling rigs, tractors, etc.

[0056] In some embodiments, the sealing connection structure 1 is the lower B-pillar strip of the vehicle. Since the lower B-pillar strip is a long and narrow strip, the sealing connection structure 1, connected by the snap-fit ​​13, can improve the stability of the lower B-pillar strip structure and increase installation efficiency. Additionally, the seal 12 also includes a third sealing portion 123 that can contact the front door of the vehicle. The hardness of the third sealing portion 123 is the same as the density of the second sealing portion 122. By using the lower hardness of the third sealing portion 123, wear between the seal 12 and the front door can be reduced when the front door is closed, thus extending the service life of both the front door and the seal 12. Furthermore, ensuring that the third sealing portion 123 and the second sealing portion 122 have the same density reduces the use of other density types of raw materials in the seal 12, lowers the types of raw materials required for processing the seal 12, and improves the efficiency of manufacturing the seal 12.

[0057] Furthermore, in some embodiments, please refer to Figure 5 The sealing connection structure 1 is the lower C-pillar strip of the vehicle. Since the lower C-pillar strip is a long and narrow structure, the sealing connection structure 1, connected by the snap-fit ​​13, improves the stability of the lower C-pillar strip structure and increases installation efficiency. Additionally, the seal 12 includes a fourth sealing portion 124 that contacts the rear door 2 of the vehicle. The hardness of the fourth sealing portion 124 is the same as the density of the second sealing portion 122. By using the lower hardness of the fourth sealing portion 124, wear between the seal 12 and the rear door can be reduced when the rear door 2 is closed, thus extending the service life of both the rear door and the seal 12. Furthermore, ensuring that the fourth sealing portion 124 and the second sealing portion 122 have the same density reduces the use of other density types of materials in the seal 12, lowers the types of materials required for processing the seal 12, and improves the efficiency of manufacturing the seal 12.

[0058] The above describes the basic principles of the present application in combination with specific embodiments, but it should be noted that the advantages, benefits, effects and the like mentioned in the present application are only examples and are not limiting, and these advantages, benefits, effects and the like cannot be considered as necessary for each embodiment of the present application. In addition, the above specific details disclosed are only for the purpose of illustration and understanding, and are not limiting, and the above details do not limit the present application to be necessarily implemented with the above specific details.

[0059] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply the connection, arrangement, configuration as shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have" and the like are open-ended words, meaning "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0060] It should also be noted that in the devices, equipment and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present application.

[0061] The above description of the disclosed aspects is provided so that any person skilled in the art can make or use the present application. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0062] It should be understood that the adjectives "first", "second", "third", "fourth", "fifth" and "sixth" used in the embodiments of the present application are only used for clearer description of the technical solutions, and cannot be used to limit the protection scope of the present application.

[0063] The above description has been given for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A sealed connection structure characterized by comprising: Applied to a vehicle, comprising: a connecting piece; a sealing piece with a buckle hole; a buckle which is buckled with the buckle hole to connect the sealing piece with the connecting piece; wherein the sealing piece comprises a first sealing part and a second sealing part connected together, the second sealing part forms at least part of the buckle hole, and the hardness of the second sealing part is lower than that of the first sealing part.

2. The sealed connection structure according to claim 1, characterized by The second sealing part forms the complete buckle hole.

3. The sealed connection structure according to claim 1, wherein The second sealing part forms part of the buckle hole, and the first sealing part forms the remaining part of the buckle hole.

4. The sealed connection structure according to any one of claims 1 to 3, characterized by The sealing piece is a co-extrusion molding.

5. The sealed connection structure according to claim 1, wherein In the installation direction of the buckle, the cross-sectional area of the buckle hole decreases.

6. The sealed connection structure according to claim 1, wherein In the buckled state, the buckle abuts against the wall surface of the buckle hole.

7. The sealed connection structure according to claim 1, wherein The first sealing part and the second sealing part are ethylene-propylene-diene rubber or thermoplastic vulcanized rubber.

8. The sealed connection structure according to claim 7, wherein The Shore hardness of the first sealing portion is 60 degrees to 90 degrees, and / or the density of the second sealing portion is 0.5 to 0.8 g / cm 3 .

9. A vehicle characterized by comprising: The sealing connection structure according to any one of claims 1-8.

10. The vehicle according to claim 9, wherein the sealing connection structure is a B-pillar lower seam strip of the vehicle, the sealing piece further comprises a third sealing part which can contact a front side door of the vehicle, and the hardness of the third sealing part is the same as that of the second sealing part; and / or the sealing connection structure is a C-pillar lower seam strip of the vehicle, the sealing piece further comprises a fourth sealing part which can contact a rear side door of the vehicle, and the hardness of the fourth sealing part is the same as that of the second sealing part.

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