Sealing bolt and vehicle

Abstract

This invention discloses a sealing bolt and a vehicle. The sealing bolt includes: a rod body comprising a connected first part and a second part, the first part having a plurality of first mounting grooves spaced apart along the circumferential direction, and the second part having external threads; a first sealing element comprising: a connected main body and a plurality of connecting parts, the main body being an annular structure sleeved on the first part, the plurality of connecting parts being spaced apart on the radially inner side of the main body, the plurality of connecting parts corresponding one-to-one with the plurality of first mounting grooves, each connecting part located within a corresponding first mounting groove; and a bolt head disposed at the end of the first part away from the second part, the side of the bolt head connecting to the rod body also having a stop surface. The sealing bolt proposed in this invention allows the first sealing element to seal the rod body in the radial direction. The first sealing element is connected to the first part through the plurality of first mounting grooves, ensuring reliable connection and guaranteeing the strength of the bolt.

Description

Technical Field

[0001] This application relates to the field of assembly technology, and in particular to a sealing bolt and a vehicle. Background Technology

[0002] When bolts are tightened in related technologies, they only serve an assembly function. For waterproof sealing, gaskets or O-rings are needed to ensure a seal. On-site assembly is inefficient and there is a risk of missing gaskets or O-rings. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a sealing bolt in which a first sealing element can seal in the radial direction of the rod body. The first sealing element is connected to a first part through multiple first mounting grooves, ensuring reliable connection and guaranteeing the strength of the bolt.

[0004] This application also proposes a vehicle that includes the aforementioned sealing bolts.

[0005] According to an embodiment of the present invention, a sealing bolt includes: a rod body comprising a first part and a second part connected together, the first part having a plurality of first mounting grooves spaced apart along a circumferential direction, and the second part having an external thread; a first sealing element comprising: a main body portion and a plurality of connecting portions connected together, the main body portion being an annular structure sleeved on the first part, the plurality of connecting portions being spaced apart on the radially inner side of the main body portion, the plurality of connecting portions corresponding one-to-one with the plurality of first mounting grooves, and each connecting portion being located within a corresponding first mounting groove; and a bolt head disposed at the end of the first part away from the second part, the side of the bolt head connected to the rod body also having a stop surface.

[0006] According to an embodiment of the present invention, a sealing bolt has a first sealing element on its rod body. The first sealing element can seal the rod body in the radial direction, reducing the risk of fluid passing through the first through hole and improving the sealing performance of the sealing bolt. This allows the sealing bolt to be used in assembly scenarios with waterproofing requirements, thus improving its applicability. Multiple connecting portions of the first sealing element are located in multiple first mounting grooves, effectively improving the stability of the connection between the first sealing element and the first portion, reducing the risk of the first sealing element detaching from the first portion and causing sealing failure, and improving the reliability of the sealing bolt. The structure of the first portion for connecting the first sealing element is multiple first mounting grooves spaced apart in the circumferential direction, effectively improving the strength of the rod body, reducing the risk of sealing bolt breakage, and ensuring the reliability of the sealing bolt for assembly.

[0007] In some embodiments, the first sealant is a sealant material component.

[0008] In some embodiments, the first seal is disposed at one end of the first portion near the bolt head; and / or, a plurality of the first seals are disposed at intervals in the axial direction of the first portion; and / or, the depth of the first mounting groove is 0.2 mm to 0.5 mm.

[0009] In some embodiments, the device further includes a second seal disposed on the stop surface and surrounding the rod body, wherein at least a portion of the second seal protrudes from the stop surface.

[0010] In some embodiments, at least a portion of the cross-section of the bolt head gradually decreases in the direction toward the rod body so that the stop surface is formed as a tapered stop surface, and the second seal is disposed on the tapered stop surface.

[0011] In some embodiments, the angle between the tapered stop surface and the axial direction of the rod is P, which is 60°≤P≤75°.

[0012] In some embodiments, the stop surface is provided with an annular second mounting groove, the second seal is a sealing ring, a portion of the sealing ring is located in the second mounting groove, and a portion of the sealing ring protrudes out of the second mounting groove.

[0013] In some embodiments, the external thread extends helically along the axial direction of the second portion, the external thread is a trapezoidal thread, the side of the trapezoidal thread in the axial direction of the second portion is a mating surface, and the angle between the mating surface and the radial direction of the second portion is Q, which is 1°≤Q≤2°.

[0014] In some embodiments, the external thread extends helically along the axial direction of the second portion, and the second portion is further provided with a third seal that extends helically along the axial direction of the second portion. In the axial direction of the rod body, the third seal is located on one side of the external thread, and the third seal is adapted to seal with the internal thread of an external structure.

[0015] The vehicle according to an embodiment of the present invention includes: the sealing bolt described in the above technical solution.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1This is a schematic diagram of a sealing bolt according to an embodiment of the present invention; Figure 2 This is a schematic diagram showing the sealing bolt and nut working together to fix the first and second mating parts; Figure 3 This is a schematic diagram of the sealing bolt removing the first seal according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of a sealing bolt according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the cooperation between the third seal and the second part according to an embodiment of the present invention; Figure 6 yes Figure 5 The second part of the diagram shows the fit between the nut and the part in the diagram.

[0018] Reference numerals: 100, sealing bolt; 1, rod body; 11, first part; 111, first mounting groove; 12, second part; 121, external thread; 2, bolt head; 21, stop surface; 22, second mounting groove; 3, first seal; 4, second seal; 5, third seal; 200, nut; 201, internal thread; 300, first mating part; 400, second mating part. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, 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, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] The following is for reference. Figures 1-6 A sealing bolt 100 and a vehicle are described according to an embodiment of the present invention.

[0022] Reference Figure 1 , Figure 2 and Figure 3 According to an embodiment of the present invention, the sealing bolt 100 includes: a rod body 1, a bolt head 2 and a first sealing element 3, wherein the rod body 1 includes a first part 11 and a second part 12 connected together, the bolt head 2 is disposed at the end of the first part 11 away from the second part 12, and a stop surface 21 is also provided on the side of the bolt head 2 connected to the rod body 1, and the second part 12 is provided with an external thread 121.

[0023] Reference Figure 1 , Figure 2 and Figure 3 In some application scenarios, the sealing bolt 100 and the nut 200 cooperate to fix the first mating part 300 and the second mating part 400 together. Specifically, the first mating part 300 is provided with a first through hole, and the second mating part 400 is provided with a second through hole. The rod body 1 of the sealing bolt 100 passes through the first through hole and the second through hole, and the bolt head 2 is located on the side of the first mating part 300 away from the second mating part 400. The nut 200 is located on the side of the second mating part 400 away from the first mating part 300. The nut 200 is provided with an internal thread 201. The nut 200 is threadedly engaged with the second part 12. The stop surface 21 of the bolt head 2 abuts against the first mating part 300, and the nut 200 abuts against the second mating part 400. The first mating part 300 and the second mating part 400 are sandwiched between the bolt head 2 and the nut 200, thereby fixing the first mating part 300 and the second mating part 400 together.

[0024] This application does not limit the specific structure of the first mating part 300 and the second mating part 400.

[0025] In this embodiment of the application, the first part 11 is provided with a plurality of first mounting grooves 111 spaced apart along the circumferential direction; the first sealing member 3 includes: a connected main body and a plurality of connecting parts, the main body is an annular structure that is sleeved on the first part 11, the plurality of connecting parts are spaced apart on the radial inner side of the main body, the plurality of connecting parts correspond one-to-one with the plurality of first mounting grooves 111, and each connecting part is located in the corresponding first mounting groove 111.

[0026] When the sealing bolt 100 and the nut 200 are engaged to fix the first mating part 300 and the second mating part 400, the first sealing part 3 is located in the first through hole and abuts against the inner wall of the first through hole, thereby achieving a seal between the inner wall of the first through hole and the first part 11, reducing the risk of fluid passing through the first through hole, improving the sealing performance of the sealing bolt 100, and enabling the sealing bolt 100 to be applied to assembly scenarios with waterproof requirements, thus improving the applicability of the sealing bolt 100.

[0027] Furthermore, in this embodiment, the multiple connecting portions of the first seal 3 are respectively located in multiple first mounting grooves 111, which effectively improves the stability of the connection between the first seal 3 and the first portion 11, reduces the risk of the first seal 3 detaching from the first portion 11 and causing sealing failure, and improves the reliability of the sealing bolt 100.

[0028] Furthermore, in this embodiment, the structure of the first part 11 for connecting the first seal 3 is a plurality of first mounting grooves 111 spaced apart along the circumferential direction, rather than an annular groove that extends continuously along the circumferential direction of the first part 11. This effectively improves the strength of the rod body 1, reduces the risk of breakage of the sealing bolt 100, and ensures the reliability of the sealing bolt 100 for assembly.

[0029] According to an embodiment of the present invention, the sealing bolt 100 has a first sealing element 3 on the rod body 1. The first sealing element 3 can seal the rod body 1 in the radial direction, reducing the risk of fluid passing through the first through hole and improving the sealing performance of the sealing bolt 100. This allows the sealing bolt 100 to be applied to assembly scenarios with waterproofing requirements, thus improving the applicability of the sealing bolt 100. The multiple connecting parts of the first sealing element 3 are respectively located in multiple first mounting grooves 111, which effectively improves the stability of the connection between the first sealing element 3 and the first part 11, reduces the risk of the first sealing element 3 detaching from the first part 11 and causing sealing failure, and improves the reliability of the sealing bolt 100. The structure of the first part 11 for connecting the first sealing element 3 is multiple first mounting grooves 111 spaced apart in the circumferential direction, which effectively improves the strength of the rod body 1, reduces the risk of the sealing bolt 100 breaking, and ensures the reliability of the sealing bolt 100 for assembly.

[0030] In some embodiments, the first sealant 3 is a sealant material component.

[0031] For example, the first seal 3 is in a liquid or paste state before molding. The liquid or paste state is filled into multiple first mounting grooves 111 and arranged around the first part 11. After solidification, the liquid or paste state forms the first seal 3. The connection between the first seal 3 and the first part 11 formed by this technical solution is more reliable, further reducing the risk of the first seal 3 detaching from the first part 11 and causing sealing failure, and improving the reliability of the sealing bolt 100.

[0032] For example, the first seal 3 can also be a pre-formed structure, which is then assembled to the first part after being formed. The first seal 3 formed by this technical solution has a high forming rate, which improves the yield of the sealing bolt 100 and reduces the cost of the sealing bolt 100.

[0033] In some specific embodiments, the first seal can be a silicone rubber material, such as many single-component room temperature vulcanizing (RTV) silicone rubbers, which have excellent elasticity and excellent high and low temperature resistance (e.g., -60°C to 200°C), as well as good weather resistance, waterproofing, and electrical insulation, making them very suitable for working conditions with large temperature variations or exposure to the outdoors.

[0034] In some specific embodiments, the first seal can be made of polyurethane material, which has excellent mechanical properties, a wide range of adjustable hardness, both flexibility and good strength, and usually good oil resistance, making it suitable for dynamic joints that require high structural strength and wear resistance.

[0035] In some specific embodiments, the first sealant can be a silane-modified polymer material, a type of material that balances performance and environmental friendliness, often referred to as silane-modified polyether or MS sealant. It combines the weather resistance of silicone rubber with the adhesiveness of polyurethane, is typically environmentally friendly and solvent-free, and has good elasticity and can be painted.

[0036] It should be understood that in other embodiments, the first sealant may also be other sealant materials, and this application does not limit this.

[0037] In other embodiments, the first sealing element 3 may also be silicone grease or other structures, as long as it can fill the space between the first portion 11 and the inner wall of the first through hole to achieve a sealing effect. Reference Figure 1 , Figure 2 and Figure 3 In some embodiments, the first seal 3 is disposed at one end of the first portion 11 near the bolt head 2.

[0038] When the sealing bolt 100 is applied to different scenarios, the thickness of the first mating part 300 and the length of the first through hole are different. However, after the nut 200 is tightened, the stop surface 21 of the bolt head 2 will always abut against the first mating part 300. In this embodiment, the first sealing element 3 is disposed at the end of the first part 11 near the bolt head 2, so that the first sealing element 3 can always be located inside the first through hole, thereby ensuring the reliability of the seal between the inner wall of the first through hole and the first part 11 achieved by the first sealing element 3. In other words, the sealing bolt 100 can be used for the assembly and sealing of first mating parts 300 of different thicknesses.

[0039] In some embodiments, a plurality of first seals 3 are provided, and the plurality of first seals 3 are spaced apart in the axial direction of the first portion 11.

[0040] Through the above technical solution, multiple seals are formed in the axial direction of the first part 11, which further reduces the risk of fluid passing through the first through hole and further improves the sealing performance of the sealing bolt 100.

[0041] In some embodiments, the depth of the first mounting groove 111 is 0.2mm-0.5mm.

[0042] If the depth of the first mounting groove 111 is less than 0.2 mm, the connection stability between the first seal 3 and the first part 11 will be poor, and the first seal 3 may easily detach from the first mounting groove 111, affecting the sealing reliability of the sealing bolt 100. If the depth of the first mounting groove 111 is greater than 0.5 mm, it will affect the strength of the rod 1. When the assembly force is large, the rod 1 may break, affecting the assembly reliability of the sealing bolt 100.

[0043] In this embodiment, the depth of the first mounting groove 111 is 0.2mm-0.5mm, which not only ensures the connection stability between the first sealing element 3 and the first part 11 and improves the sealing reliability of the sealing bolt 100, but also ensures the strength of the rod body 1 and improves the assembly reliability of the sealing bolt 100.

[0044] In some specific embodiments, the depth of the first mounting groove 111 is any one of 0.2mm, 0.3mm, 0.4mm and 0.5mm or a range between any two, and this application does not limit it.

[0045] Reference Figure 1 , Figure 2 and Figure 3 In some embodiments, the sealing bolt 100 further includes a second seal 4 disposed on the stop surface 21 and surrounding the rod body 1, with at least a portion of the second seal 4 protruding from the stop surface 21.

[0046] When the sealing bolt 100 and nut 200 are engaged to fix the first mating part 300 and the second mating part 400 together, the abutment surface 21 abuts against the first mating part 300, and at least a portion of the second sealing part 4 protrudes from the abutment surface 21, so that the second sealing part 4 can seal the gap between the abutment surface 21 and the first mating surface. That is to say, in this embodiment of the application, not only is the sealing between the inner wall of the first through hole and the first part 11 achieved by the first sealing part 3, but the gap between the abutment surface 21 and the first mating surface can also be sealed by the second sealing part 4, which further improves the sealing performance of the sealing bolt 100, reduces the possibility of fluid flowing from the side of the first mating part 300 away from the second mating part 400 to the side of the second mating part 400 away from the first mating part 300, and also reduces the possibility of fluid flowing from the side of the second mating part 400 away from the first mating part 300 to the side of the first mating part 300 away from the second mating part 400.

[0047] Reference Figure 1 , Figure 2 and Figure 3 In some embodiments, at least a portion of the cross-section of the bolt head 2 gradually decreases in the direction toward the rod body 1 so that the stop surface 21 is formed as a tapered stop surface, and the second seal 4 is disposed on the tapered stop surface.

[0048] In some application scenarios, the first mating part 300 is provided with a tapered countersunk hole that mates with the tapered stop surface. When the sealing bolt 100 and the nut 200 are mated to fix the first mating part 300 and the second mating part 400 together, at least a portion of the bolt head 2 is located in the tapered countersunk hole, and the tapered stop surface abuts against the inner wall of the tapered countersunk hole.

[0049] Through the above technical solution, during assembly, the tapered stop surface can smoothly slide into the tapered surface of the tapered countersunk hole, and the automatic guide rod 1 is aligned with the center of the hole. This ensures the stability of the bolt and nut 200 when they are mated, and avoids thread damage or reduced connection strength due to installation deviation. Furthermore, the tapered stop surface and the inner wall of the tapered countersunk hole can more effectively transfer the lateral shear force from the bolt head 2 to the first mating part 300, rather than having it all borne by the bolt, thereby improving the bolt's ability to resist shear failure. Moreover, the tapered stop surface and the inner wall of the tapered countersunk hole can generate additional friction, or generate greater radial pressure during tightening by utilizing the wedging effect of the tapered surface, effectively increasing the loosening resistance, playing an anti-loosening role, and improving the assembly reliability of the sealing bolt 100.

[0050] Reference Figure 1 , Figure 2 and Figure 3 In some embodiments, the angle between the tapered stop surface and the axial direction of the rod 1 is P, which is 60°≤P≤75°.

[0051] If P is less than 60°, when the tapered stop surface abuts against the inner wall of the tapered countersunk hole, the length of the tapered stop surface extending in the axial direction is relatively long, affecting the overall size of the sealing bolt 100. If P is greater than 75°, the abutting effect when the tapered stop surface and the tapered countersunk hole are matched is poor.

[0052] In this embodiment, the angle P between the tapered stop surface and the axial direction of the rod 1 satisfies 60°≤P≤75°, which is not only beneficial to the overall size of the sealing bolt 100, but also beneficial to improving the stop effect when the tapered stop surface and the tapered countersunk hole are matched.

[0053] In some specific embodiments, the angle P between the tapered stop surface and the axial direction of the rod 1 is any one of 60°, 65°, 70° and 75° or a range between any two, and this application does not limit it.

[0054] In some embodiments, the stop surface 21 is provided with an annular second mounting groove 22, and the second seal 4 is a sealing ring, with a portion of the sealing ring located inside the second mounting groove 22 and a portion of the sealing ring protruding out of the second mounting groove 22.

[0055] In this embodiment, the second sealing element 4 has a simple structure, is easy to assemble, and improves the reliability of the sealing bolt 100 assembly.

[0056] In some further embodiments, the second seal 4 is bonded to the inner wall of the second mounting groove 22.

[0057] The above technical solutions further improve the stability of the connection between the second seal 4 and the second mounting groove 22, improve the reliability of the gap between the sealing stop surface 21 of the second seal 4 and the first mating part 300, and improve the sealing reliability of the sealing bolt 100.

[0058] It should be understood that the second seal 4 can also be fixedly connected to the bolt head 2 by snap-fit, limiting fit or other means, and this application does not limit this.

[0059] Reference Figure 4 , Figure 5 and Figure 6 In some embodiments, the external thread 121 extends helically along the axial direction of the second part 12. The external thread 121 is a trapezoidal thread. The side of the trapezoidal thread in the axial direction of the second part 12 is a mating surface. The angle between the mating surface and the radial direction of the second part 12 is Q, which is 1°≤Q≤2°.

[0060] The trapezoidal thread bolts are easier to assemble and can withstand greater preload, greatly improving the ease of assembly and load-bearing stability of the sealing bolt 100. In terms of sealing, 1°≤Q≤2° allows the nut 200 to generate a huge radial positive pressure when tightened through the interference fit of the inner and outer threads 121. It not only relies on frictional self-locking to achieve reliable anti-loosening, but also directly forms a sealing interface through the tight contact of the metal surfaces, which has the dual function of transmitting heavy loads and blocking media leakage.

[0061] In some specific embodiments, the angle Q between the mating surface and the radial direction of the second part 12 can be any one of 1°, 1.5°, 1.8° and 2° or a range between any two, and this application does not limit it.

[0062] Reference Figure 4 , Figure 5 and Figure 6 In some embodiments, the external thread 121 extends helically along the axial direction of the second part 12, and the second part 12 is also provided with a third seal 5. The third seal 5 extends helically along the axial direction of the second part 12. In the axial direction of the rod body 1, the third seal 5 is located on one side of the external thread 121. The third seal 5 is adapted to seal with the internal thread 201 of the external structure.

[0063] In the above technical solution, when the nut 200 and the sealing bolt 100 are threadedly engaged, the third sealing element 5 and the internal thread 201 of the nut 200 are sealed together to block the gap between the rod body 1 and the internal screw, thereby further improving the sealing performance of the sealing bolt 100.

[0064] In some specific embodiments, the third seal is a rubber strip, which is bonded to the second part, effectively improving the reliability of the connection between the third seal and the second part.

[0065] The following is for reference Figure 1-6 A specific embodiment of this application is described.

[0066] According to an embodiment of the present invention, the sealing bolt 100 includes: a rod body 1, a bolt head 2 and a first sealing element 3, wherein the rod body 1 includes a first part 11 and a second part 12 connected together, the bolt head 2 is disposed at the end of the first part 11 away from the second part 12, and a stop surface 21 is also provided on the side of the bolt head 2 connected to the rod body 1, and the second part 12 is provided with an external thread 121.

[0067] In some application scenarios, the sealing bolt 100 and the nut 200 cooperate to fix the first mating part 300 and the second mating part 400 together. Specifically, the first mating part 300 is provided with a first through hole, and the second mating part 400 is provided with a second through hole. The rod body 1 of the sealing bolt 100 passes through the first through hole and the second through hole, and the bolt head 2 is located on the side of the first mating part 300 away from the second mating part 400. The nut 200 is located on the side of the second mating part 400 away from the first mating part 300. The nut 200 is provided with an internal thread 201. The nut 200 is threadedly engaged with the second part 12. The stop surface 21 of the bolt head 2 abuts against the first mating part 300, and the nut 200 abuts against the second mating part 400. The first mating part 300 and the second mating part 400 are sandwiched between the bolt head 2 and the nut 200, thereby fixing the first mating part 300 and the second mating part 400 together.

[0068] The first part 11 is provided with a plurality of first mounting grooves 111 spaced apart along the circumferential direction; the first sealing member 3 includes: a connected main body and a plurality of connecting parts, the main body being an annular structure that is sleeved on the first part 11, the plurality of connecting parts being spaced apart on the radial inner side of the main body, the plurality of connecting parts corresponding one-to-one with the plurality of first mounting grooves 111, and each connecting part being located in the corresponding first mounting groove 111.

[0069] Before molding, the first sealing element 3 is a liquid or paste structure. The liquid or paste structure is filled into multiple first mounting grooves 111 and arranged around the first part 11. After the liquid or paste structure solidifies, it forms the first sealing element 3.

[0070] The first seal 3 is located at one end of the first part 11 near the bolt head 2.

[0071] The depth of the first mounting slot 111 is 0.5mm.

[0072] The sealing bolt 100 further includes a second sealing element 4, which is disposed on the stop surface 21 and surrounds the rod body 1, with at least a portion of the second sealing element 4 protruding from the stop surface 21.

[0073] In the direction toward the rod 1, at least a portion of the cross-section of the bolt head 2 gradually decreases so that the stop surface 21 is formed as a tapered stop surface, and the second seal 4 is disposed on the tapered stop surface. The angle P between the tapered stop surface and the axial direction of the rod 1 is 60°.

[0074] The stop surface 21 is provided with an annular second mounting groove 22. The second sealing element 4 is a sealing ring, with part of the sealing ring located inside the second mounting groove 22 and part of the sealing ring protruding from the second mounting groove 22. The second sealing element 4 is bonded to the inner wall of the second mounting groove 22.

[0075] The external thread 121 extends spirally along the axial direction of the second part 12. The external thread 121 is a trapezoidal thread. The side of the trapezoidal thread in the axial direction of the second part 12 is a mating surface. The angle between the mating surface and the radial direction of the second part 12 is Q, and Q is 1.5°.

[0076] In this embodiment, the sealing bolt 100 forms a seal in the radial direction through the first sealing member 3 and achieves a seal in the axial direction through the second sealing member 4. The dual seal of the radial and axial directions effectively improves the sealing effect of the sealing bolt 100.

[0077] According to an embodiment of the present invention, the fastening assembly includes: a nut 200 and a sealing bolt 100 as described above, wherein the nut 200 is adapted to be threadedly engaged with the rod body 1.

[0078] According to the fastening assembly of the present invention, a first sealing element 3 is provided on the rod 1 of the sealing bolt 100. The first sealing element 3 can seal the rod 1 in the radial direction, reducing the risk of fluid passing through the first through hole, improving the sealing performance of the sealing bolt 100, and enabling the sealing bolt 100 to be applied to assembly scenarios with waterproof requirements, thus improving the applicability of the sealing bolt 100. The multiple connecting parts of the first sealing element 3 are respectively located in multiple first mounting grooves 111, which effectively improves the stability of the connection between the first sealing element 3 and the first part 11, reduces the risk of the first sealing element 3 detaching from the first part 11 and causing sealing failure, and improves the reliability of the sealing bolt 100. The structure of the first part 11 for connecting the first sealing element 3 is multiple first mounting grooves 111 spaced apart in the circumferential direction, which effectively improves the strength of the rod 1, reduces the risk of the sealing bolt 100 breaking, and ensures the reliability of the sealing bolt 100 for assembly.

[0079] The vehicle according to an embodiment of the present invention includes: the sealing bolt 100 in the above technical solution.

[0080] According to the vehicle of the present invention, the sealing bolt 100 of the above technical solution is used. A first sealing element 3 is provided on the rod 1 of the sealing bolt 100. The first sealing element 3 can seal the rod 1 in the radial direction, reducing the risk of fluid passing through the first through hole, improving the sealing performance of the sealing bolt 100, and making the sealing bolt 100 applicable to assembly scenarios with waterproof requirements, thus improving the applicability of the sealing bolt 100. The multiple connecting parts of the first sealing element 3 are respectively located in multiple first mounting grooves 111, which effectively improves the stability of the connection between the first sealing element 3 and the first part 11, reduces the risk of the first sealing element 3 detaching from the first part 11 and causing sealing failure, and improves the reliability of the sealing bolt 100. The structure of the first part 11 for connecting the first sealing element 3 is multiple first mounting grooves 111 spaced apart in the circumferential direction, which effectively improves the strength of the rod 1, reduces the risk of the sealing bolt 100 breaking, ensures the reliability of the sealing bolt 100 for assembly, and effectively improves the waterproof performance of the vehicle.

[0081] Other configurations and operations of the vehicle according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0082] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0083] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sealing bolt (100), characterized in that, include: The rod body (1) includes a first part (11) and a second part (12) connected together. The first part (11) is provided with a plurality of first mounting grooves (111) spaced apart along the circumferential direction, and the second part (12) is provided with external threads (121). The first sealing element (3) includes: a connected main body and a plurality of connecting parts. The main body is an annular structure that is sleeved on the first part (11). The plurality of connecting parts are distributed at intervals on the radial inner side of the main body. The plurality of connecting parts correspond one-to-one with the plurality of first mounting grooves (111). Each connecting part is located in the corresponding first mounting groove (111). Bolt head (2), the bolt head (2) is disposed at the end of the first part (11) away from the second part (12), and the side of the bolt head (2) connected to the rod body (1) is also provided with a stop surface (21).

2. The sealing bolt (100) according to claim 1, characterized in that, The first sealing element (3) is a sealing adhesive material.

3. The sealing bolt (100) according to claim 1, characterized in that, The first seal (3) is disposed at one end of the first portion (11) near the bolt head (2); And / or, a plurality of the first seals (3) are provided, and the plurality of the first seals (3) are spaced apart in the axial direction of the first portion (11); And / or, the depth of the first mounting groove (111) is 0.2mm-0.5mm.

4. The sealing bolt (100) according to claim 1, characterized in that, Also includes: A second seal (4) is disposed on the stop surface (21) and surrounding the rod body (1), at least a portion of the second seal (4) protruding from the stop surface (21).

5. The sealing bolt (100) according to claim 4, characterized in that, In the direction toward the rod (1), at least a portion of the cross-section of the bolt head (2) gradually decreases so that the stop surface (21) is formed as a tapered stop surface, and the second seal (4) is disposed on the tapered stop surface.

6. The sealing bolt (100) according to claim 5, characterized in that, The angle between the tapered stop surface and the axial direction of the rod (1) is P, which is 60°≤P≤75°.

7. The sealing bolt (100) according to claim 4, characterized in that, The stop surface (21) is provided with an annular second mounting groove (22), and the second sealing element (4) is a sealing ring. Part of the sealing ring is located in the second mounting groove (22), and part of the sealing ring protrudes out of the second mounting groove (22).

8. The sealing bolt (100) according to claim 1, characterized in that, The external thread (121) extends spirally along the axial direction of the second part (12). The external thread (121) is a trapezoidal thread. The side of the trapezoidal thread in the axial direction of the second part (12) is a mating surface. The angle between the mating surface and the radial direction of the second part (12) is Q, which is 1°≤Q≤2°.

9. The sealing bolt (100) according to any one of claims 1-8, characterized in that, The external thread (121) extends spirally along the axial direction of the second part (12), and the second part (12) is also provided with a third seal (5). The third seal (5) extends spirally along the axial direction of the second part (12). In the axial direction of the rod body (1), the third seal (5) is located on one side of the external thread (121), and the third seal (5) is adapted to seal with the internal thread (201) of the external structure.

10. A vehicle, characterized in that, Includes the sealing bolt (100) according to any one of claims 1-9.

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