A sealing tooling and an automotive sheet metal mounting structure having the same, and an automotive...

Abstract

This utility model discloses a sealing fixture, an automotive sheet metal installation structure having the same, and an automobile, relating to the field of automotive sheet metal installation technology. It includes a fixture body with a contact surface for contacting the automotive sheet metal. The fixture body has multiple through holes penetrating it, one end of each through hole being located on the contact surface. A sealing ring surrounds each through hole on the contact surface of the fixture body. The beneficial effect of this utility model is that even if the fixture body deforms during installation, the sealing effect of the sealing ring is maintained, effectively preventing external water from entering the car body or between multiple layers of sheet metal.

Description

Technical Field

[0001] This utility model relates to the field of automotive sheet metal installation technology, and in particular to a sealing tooling and an automotive sheet metal installation structure having the same, and an automobile. Background Technology

[0002] Automotive sheet metal can be single-layered or multi-layered in different locations on a car. During installation, the sheet metal is secured to the vehicle body using bolts. Specifically, threaded holes are drilled in the car body, and corresponding holes are drilled in the sheet metal. Bolts pass through the holes in the sheet metal and are threaded into the threaded holes in the car body to secure the sheet metal to the vehicle body. To ensure a secure fit, multiple bolts are typically used, connecting to multiple threaded holes in the car body.

[0003] This installation method requires sealing the openings in the sheet metal to prevent external water from seeping into the vehicle body through these openings, or, in the case of multi-layered sheet metal, allowing water to seep between the layers and cause corrosion. Therefore, sealing the openings in the sheet metal is necessary. Current practice involves using seals to seal these openings. Since the interior of a car consists of rigid components, rubber is used for the seals to prevent damage from friction between the seals and other car parts. Specifically... Figure 1 As shown, the seal 1 has a structure that abuts against the head of the bolt and a sealing portion 2. The seal 1 has multiple through holes 3 for multiple bolts to pass through, all located within the sealing portion 2. When the sheet metal is installed on the vehicle body, the seal 1 is abutted against the sheet metal, and the through holes 3 of the seal 1, the openings on the sheet metal, and the threaded holes on the vehicle body are aligned. Then, the bolts are passed through the through holes 3 of the seal 1 and the openings on the sheet metal, and then threadedly connected to the threaded holes on the vehicle body. One end of the bolt is threaded into the threaded hole on the vehicle body, and the head of the other end of the bolt abuts against the seal 1.

[0004] However, to ensure a secure fit between the sheet metal and the car body, the bolts need to be screwed deep into the threaded holes in the car body. Since seal 1 is made of rubber, the bolts deform during tightening. Specifically, as one end of the bolt is gradually screwed deeper into the threaded hole in the car body, the bolt head at the other end presses against seal 1, causing it to deform. The portion of seal 1 with the through hole 3 in the middle protrudes more than the sides, causing the sides of seal 1 to lift up. This, in turn, causes the sealing portions 2 on both sides of seal 1 to lift up as well. Consequently, the lifted sides of sealing portions 2 cannot adhere to the sheet metal surface, resulting in the sealing portions 2 failing to seal around the openings in the sheet metal. This fails to effectively prevent external water from seeping into the car body or between multiple layers of sheet metal through the openings in the sheet metal. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a sealing tooling and an automotive sheet metal mounting structure and an automobile having the same, which can effectively seal the openings in the sheet metal and prevent external water from seeping into the car body or between multiple layers of sheet metal through the openings in the sheet metal.

[0006] This utility model provides a sealing fixture, including a fixture body, the fixture body having an abutting surface for abutting against automotive sheet metal; the fixture body has a plurality of through holes penetrating the fixture body, one end of each through hole being located at the abutting surface, and a sealing ring is provided around each through hole on the abutting surface of the fixture body.

[0007] Optionally, the through hole is divided into a first part and a second part along its length direction, the first part being further away from the abutment surface than the second part, and the diameter of the first part being larger than the diameter of the second part.

[0008] Optionally, the first part of the through hole is provided with a drainage hole that communicates with the outside of the tooling body.

[0009] Optionally, the drainage hole is formed on the side wall of the first part of the through hole.

[0010] Optionally, the through hole is an oblong hole.

[0011] Optionally, the tooling body includes a body portion and an extension portion connected in sequence, wherein the cross-sectional area of ​​the extension portion is smaller than the cross-sectional area of ​​the body portion, and the abutment surface is located on the extension portion.

[0012] Optionally, both the tooling body and the sealing ring are rubber parts, and the tooling body and the sealing ring are integrally injection molded.

[0013] Optionally, it also includes a rubber layer disposed on the other side of the tooling body opposite the abutment surface, the tooling body being made of a plastic material, and the sealing ring being a rubber ring.

[0014] This utility model also provides an automotive sheet metal mounting structure, including sheet metal, multiple bolts, and a sealing fixture as described above. The sheet metal has mounting holes with the same number as the through holes. The abutting surface of the fixture body abuts against the sheet metal, and the through holes are aligned with the mounting holes on the sheet metal. The bolts pass through the through holes of the fixture body and the mounting holes of the sheet metal. The sealing ring around the through holes of the fixture body abuts against the sheet metal to seal the mounting holes.

[0015] This utility model also provides an automobile, including a body and the automobile sheet metal mounting structure as described above. The body has threaded holes with the same number as the mounting holes. The bolt passes through the through hole of the sealing fixture and the mounting hole of the sheet metal and is threadedly connected to the threaded hole of the body.

[0016] The beneficial effects of this utility model are as follows: by setting sealing rings at each through hole of the tooling body, when the tooling body and sheet metal are installed on the car body by bolts, the sealing effect of each sealing ring will not be reduced due to the deformation of the tooling body, thus ensuring the sealing effect of the tooling body and effectively preventing external water from seeping into the car body or between multiple layers of sheet metal through the installation holes of the sheet metal. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an existing seal.

[0019] Figure 2 This is a schematic diagram of the structure of a sealing tool according to the present invention.

[0020] Figure 3 This is a structural schematic diagram of a sealing tool according to the present invention from another perspective.

[0021] In the picture:

[0022] 1. Seal; 2. Sealing part; 3. Through hole;

[0023] Tooling body 10, contact surface 11, through hole 12, first part 121, second part 122, sealing ring 13, body part 14, extension part 15, drain hole 16, first end 17, second end 18. Detailed Implementation

[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0025] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0026] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0028] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0029] like Figure 2 and Figure 3As shown in the figure, this embodiment provides a sealing fixture, including a fixture body 10. The fixture body 10 has a first end 17 and a second end 18 facing each other. The second end 18 of the fixture body 10 has an abutment surface 11 for abutting against the automotive sheet metal, so that the automotive sheet metal is installed on the automotive body. The abutment surface 11 of the fixture body 10 abuts against the surface of the automotive sheet metal, and the other side of the automotive sheet metal abuts against the automotive body. The fixture body 10 has a plurality of through holes 12 that penetrate the fixture body 10. The through holes 12 are straight holes that extend along the height direction of the fixture body 10 and are used for bolts to pass through. One end of the bolt passes through the through hole 12 of the fixture body 10 and then through the mounting hole of the automotive sheet metal and the threaded hole of the automotive body. The head of the other end of the bolt abuts against the first end 17 of the fixture body 10, keeping the fixture body 10, the automotive sheet metal, and the automotive body relatively fixed. The two ends of the through hole 12 are located at the first end 17 and the second end 18 of the tooling body 10, respectively. That is, one end of the through hole 12 is opened on the abutment surface 11 of the second end 18 of the tooling body 10. A sealing ring 13 is provided around each through hole 12 on the abutment surface 11 of the tooling body 10. Since the through holes 12 are installed in a one-to-one correspondence with the mounting holes of the automotive sheet metal, the sealing rings 13 around each through hole 12 are respectively arranged around each mounting hole on the automotive sheet metal. When the automotive sheet metal is installed on the car body, it is threaded to the threaded holes of the car body by bolts passing through the through holes 12 of the tooling body 10 and the mounting holes of the automotive sheet metal. The abutment surface 11 of the tooling body 10 is in close contact with the surface of the automotive sheet metal, thereby making the sealing rings 13 around the through holes 12 on the abutment surface 11 of the tooling body 10 tightly fit around the mounting holes on each automotive sheet metal, thus sealing the mounting holes on the automotive sheet metal tightly.

[0030] In this embodiment, the tooling body 10 and the sealing ring 13 are made of rubber. The tooling body 10 and the sealing ring 13 are integrally injection molded. The tooling body 10 and the sealing ring 13 are made of EPDM (ethylene propylene diene monomer rubber).

[0031] In the sealing fixture provided in this embodiment, compared with the traditional sealing element 1, which seals multiple through holes 3 of the sealing element 1 through a sealing part 2 (e.g., ... Figure 1As shown in the figure, sealing rings 13 are added at multiple through holes 12 on the tooling body 10. When the automotive sheet metal is installed on the car body, as the bolt is screwed into the threaded hole of the car body to secure the automotive sheet metal and the car body, the head of the other end of the bolt contacts the tooling body 10 more and more tightly, so that the force exerted by the bolt head on the tooling body 10 becomes greater and greater. Since the sealing ring 13 is located around each through hole 12, the force exerted by the bolt head on the fixture body 10 is approximately applied to the sealing ring 13. This ensures that the sealing ring 13 around the through hole 12 fits more firmly to the automotive sheet metal. Even if the sides of the fixture body 10 are lifted due to the pressure from the bolt head, the sealing effect of the sealing ring 13 will not be affected. This is because in this embodiment, the sealing ring 13 is not located around the contact surface 11 of the fixture body 10, but around each through hole 12. This allows for better sealing of the mounting holes of the automotive sheet metal, preventing external water from seeping into the car body or between multiple layers of automotive sheet metal through the mounting holes.

[0032] Furthermore, the tooling body 10 includes a body portion 14 and an extension portion 15 connected sequentially along the height direction of the tooling body 10. The cross-sectional area of ​​the extension portion 15 is smaller than that of the body portion 14, that is, the longitudinal section of the tooling body 10 is "convex". The larger volume portion is the body portion 14, located at the first end 17 of the tooling body 10, and the smaller volume portion is the extension portion 15, located at the second end 18 of the tooling body 10. The abutment surface 11 is located on the extension portion 15. In this way, when the tooling body 10 is attached to the automotive sheet metal, the sealing ring 13 on the abutment surface 11 can be effectively attached to the surface of the automotive sheet metal, preventing the abutment surface 11 of the tooling body 10 from being too large and interfering with the curved part of the automotive sheet metal when the tooling body 10 is attached to the surface of the automotive sheet metal, so that the sealing ring 13 cannot be effectively attached to the surface around the mounting hole on the automotive sheet metal.

[0033] Meanwhile, the through hole 12 is divided into a first part 121 and a second part 122 along its length. The first part 121 is further away from the contact surface 11 than the second part 122, and the diameter of the first part 121 is larger than the diameter of the second part 122, meaning that the through hole 12 is a stepped hole. In practical use, the cross-sectional area of ​​the first part 121 of the through hole 12 is designed to be slightly larger than the cross-sectional area of ​​the bolt head, and the cross-sectional area of ​​the second part 122 is designed to be smaller than the cross-sectional area of ​​the bolt head but larger than the cross-sectional area of ​​the bolt shank. This allows the bolt head to be installed inside the tooling body 10 during bolt installation, achieving an aesthetic effect and preventing interference with other automotive components.

[0034] The through hole 12 is configured as a stepped hole. To prevent water from accumulating in the first part 121 of the through hole 12 and causing corrosion of the bolt, a drainage hole 16 is provided on the first part 121 of the through hole 12, which communicates with the outside of the tooling body 10. In this way, when water accumulates in the first part 121 of the through hole 12, the water can be drained through the drainage hole 16 to prevent the bolt from being corroded.

[0035] Furthermore, the drain hole 16 is located on the side wall of the first part 121 of the through hole 12. Compared to having the drain hole 16 located below the first part 121 of the through hole 12 on the tooling body 10, this avoids the problem of deformation of the tooling body 10 during the tightening of bolts on the car body, which could lead to deformation of the drain hole 16. If the drain hole 16 deforms along with the tooling body 10, causing it to close, it will not be able to drain water. Therefore, in this embodiment, the drain hole 16 is located on the side wall of the first part 121 of the through hole 12. Even if the tooling body 10 deforms during the tightening of bolts onto the car body, the drain hole 16 will not deform and become blocked.

[0036] Furthermore, the through hole 12 is an oblong hole. After the bolt passes through the through hole 12 of the tooling body 10, the mounting hole of the automotive sheet metal, and the threaded hole of the automotive body, the tooling body 10 can move linearly through the shape of the oblong hole to adjust the relative position of the tooling body 10 and the automotive sheet metal. After adjusting the position of the tooling body 10, the bolt is further tightened to keep the tooling body 10 and the automotive sheet metal relatively fixed. In this way, when the tooling body 10 interferes with the position of other parts on the vehicle, the position of the tooling body 10 can be adjusted to avoid other parts on the vehicle.

[0037] In other embodiments, the sealing fixture further includes a rubber layer disposed on the opposite side of the fixture body 10 to the contact surface 11, i.e., the contact surface 11 is located at the second end 18 of the fixture body 10, and the rubber layer is disposed at the first end 17 of the fixture body 10. The rubber layer has a hole coaxial with the through hole 12 for the bolt to pass through. The fixture body 10 is made of a plastic material, such as low-carbon steel, and the sealing ring 13 is made of rubber. Since the first end 17 of the fixture body 10 contacts other parts of the vehicle through the rubber layer, and the second end 18 of the fixture body 10 contacts the vehicle sheet metal through the rubber sealing ring 13, the low-carbon steel material of the fixture body 10 will not cause wear due to friction with other parts of the vehicle. Furthermore, changing the fixture body 10 from rubber to a plastic material provides higher rigidity, completely preventing deformation of the fixture body 10 during bolt tightening and thus ensuring the sealing effect of the sealing ring 13.

[0038] In summary, the sealing fixture provided in this embodiment can effectively seal the mounting holes on the automotive sheet metal, avoiding the problem of the sealing ring 13 failing to seal due to deformation of the fixture body 10 during installation. Furthermore, the fixture body 10, configured as a body portion 14 and an extension portion 15, further ensures the sealing effect of the sealing ring 13.

[0039] This embodiment also provides an automotive sheet metal mounting structure, including sheet metal, multiple bolts, and the sealing fixture described above. The sheet metal has mounting holes in the same number as the through holes 12, and each mounting hole on the sheet metal corresponds one-to-one with the through holes 12 on the fixture body 10. The sheet metal can be one layer or multiple layers. When the sheet metal is multi-layered, the mounting holes on the multiple layers are coaxial. The abutting surface 11 of the fixture body 10 abuts against the sheet metal, and the through holes 12 are aligned with the mounting holes on the sheet metal. Bolts pass through the through holes 12 of the fixture body 10 and the mounting holes of the sheet metal. The sealing ring 13 around the through holes 12 of the fixture body 10 abuts against the sheet metal to seal the mounting holes.

[0040] In summary, in the automotive sheet metal mounting structure provided in this embodiment, the multiple through holes 12 of the tooling body 10 are aligned one by one with the mounting holes of the sheet metal, and the sealing rings 13 around each through hole 12 seal the mounting holes on each sheet metal. This can effectively prevent the sealing rings 13 from deforming due to the deformation of the tooling body 10, which would prevent the mounting holes on the sheet metal from being sealed.

[0041] This embodiment also provides an automobile, including a body and the automobile sheet metal mounting structure as described above. The body has threaded holes with the same number of mounting holes as the number of mounting holes. The multiple threaded holes correspond one-to-one with the multiple mounting holes. The bolt passes through the through hole 12 of the sealing fixture and the mounting hole of the sheet metal and is threadedly connected to the threaded hole of the body.

[0042] In summary, in the automobile provided in this embodiment, the sheet metal and the body are fixedly connected by threads. The sealing rings 13 on the abutment surface 11 of the tooling body 10 seal the mounting holes on the sheet metal, preventing external water from seeping into the body or between multiple layers of sheet metal through the mounting holes. Furthermore, the sealing rings 13 around the multiple through holes 12 on the tooling body 10 seal the multiple mounting holes on the sheet metal one by one. Even if the tooling body 10 deforms during the process of tightening the bolts into the threaded holes of the body, it will not cause the sealing rings 13 to fail to seal properly, ensuring that there is no water seepage into the body or between multiple layers of sheet metal.

[0043] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A sealing tool, characterized in that: The tooling body (10) has a contact surface (11) for contacting with automotive sheet metal. The tooling body (10) has a plurality of through holes (12) that pass through it. One end of each through hole (12) is located on the contact surface (11). A sealing ring (13) is provided around each through hole (12) on the contact surface (11) of the tooling body (10).

2. The sealing fixture according to claim 1, characterized in that: The through hole (12) is divided into a first part (121) and a second part (122) along its length direction. The first part (121) is further away from the contact surface (11) than the second part (122). The diameter of the first part (121) is larger than the diameter of the second part (122).

3. The sealing fixture according to claim 2, characterized in that: The first part (121) of the through hole (12) is provided with a drainage hole (16) that communicates with the outside of the tooling body (10).

4. The sealing fixture according to claim 3, characterized in that: The drainage hole (16) is located on the side wall of the first part (121) of the through hole (12).

5. The sealing fixture according to claim 1, characterized in that: The through hole (12) is a waist-shaped hole.

6. The sealing fixture according to claim 1, characterized in that: The tooling body (10) includes a body part (14) and an extension part (15) connected in sequence. The cross-sectional area of ​​the extension part (15) is smaller than the cross-sectional area of ​​the body part (14), and the contact surface (11) is located on the extension part (15).

7. The sealing fixture according to claim 1, characterized in that: Both the tooling body (10) and the sealing ring (13) are rubber parts, and the tooling body (10) and the sealing ring (13) are integrally injection molded.

8. The sealing fixture according to claim 1, characterized in that: It also includes a rubber layer disposed on the other side of the tooling body (10) opposite to the abutment surface (11), the tooling body (10) being made of plastic material, and the sealing ring (13) being a rubber ring.

9. An automotive sheet metal mounting structure, characterized in that: The device includes sheet metal, multiple bolts, and a sealing fixture as described in any one of claims 1-8. The sheet metal has mounting holes of the same number as the through holes (12). The abutting surface (11) of the fixture body (10) abuts against the sheet metal, and the through holes (12) are aligned with the mounting holes on the sheet metal. The bolts pass through the through holes (12) of the fixture body (10) and the mounting holes of the sheet metal. The sealing ring (13) around the through holes (12) of the fixture body (10) abuts against the sheet metal to seal the mounting holes.

10. A car, characterized in that: The vehicle body includes the vehicle body and the automotive sheet metal mounting structure as described in claim 9. The vehicle body has threaded holes of the same number as the mounting holes. The bolt passes through the through hole (12) of the sealing fixture and the mounting hole of the sheet metal and is threadedly connected to the threaded hole of the vehicle body.

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