Back door limiting mechanism and vehicle
By embedding threaded fastener heads in the limiting mechanism and using limiting components to isolate moisture, the problem of easy damage to the tailgate limiting mechanism is solved, resulting in a longer service life, higher appearance refinement, and connection stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- STARRY SKY PLAN (SHANGHAI) AUTOMOBILE TECHNOLOGY CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-17
AI Technical Summary
In the existing technology, the tailgate limiting mechanism of a vehicle is prone to damage, has a short service life, and has poor appearance.
A tailgate limiting mechanism is designed. By embedding the head of the threaded fastener inside the limiting component, the limiting component isolates external moisture and reduces the impact of oxidation. The limiting component and the vehicle body form a sealing structure through rigid contact, thereby improving connection stability and service life.
It extends the service life of the limiting mechanism, improves the refinement of the vehicle's appearance, enhances the connection stability with the vehicle body, and reduces production costs.
Smart Images
Figure CN224134440U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle technology, and in particular to a tailgate limiting mechanism and a vehicle. Background Technology
[0002] The tailgate, also known as the tailgate or trunk lid, is a door located at the rear of the vehicle that can be opened to access items in the trunk.
[0003] The vehicle may include a body and a tailgate assembly. The tailgate assembly is connected to the body in an openable and closable manner. The body is provided with a tailgate limiting mechanism. When the tailgate assembly is in the closed position, the tailgate limiting mechanism can abut against the tailgate assembly to limit the movement of the tailgate assembly, thereby reducing the shaking of the tailgate assembly in the closed position.
[0004] In related technologies, the tailgate limiting mechanism installed on the vehicle body is prone to damage and has a short service life. Utility Model Content
[0005] This application provides a tailgate limiting mechanism and a vehicle to solve the problem of easy damage to the tailgate limiting mechanism in the above-mentioned related technologies.
[0006] This application provides a tailgate limiting mechanism, which includes a limiting member and a threaded fastener. The limiting member includes a first surface and a second surface, which are located on opposite sides of the limiting member in the thickness direction. The first surface is used to abut against a tailgate assembly of a vehicle. The threaded fastener includes a head and a threaded connection portion, which is located on the side of the second surface away from the first surface. The end of the threaded connection portion near the first surface is connected to the head, and the head is embedded in the limiting member and fixedly connected to the limiting member.
[0007] The tailgate limiting mechanism provided in this application embodiment has a threaded connection portion located on the side of the second surface away from the first surface, facilitating the connection between the tailgate limiting mechanism and the vehicle body. With the tailgate limiting mechanism securely connected to the vehicle body, the head is embedded within a limiting member. This limiting member isolates the head from external moisture, reducing its impact and preventing oxidation or other changes, thus minimizing damage and extending the service life of the tailgate limiting mechanism. Furthermore, the head being covered by the limiting member enhances the vehicle's aesthetic appeal.
[0008] In one possible implementation, the end face of the head near the threaded connection includes an abutment area located outside the threaded connection and surrounding it, with the abutment area exposed on the second surface. Thus, the tailgate limiting mechanism is fixed through rigid contact between the abutment area and the vehicle body, making it less prone to loosening after connection and ensuring good stability of the connection between the tailgate limiting mechanism and the vehicle body.
[0009] In one possible implementation, the second surface has an annular convex ridge structure. This convex ridge structure is located outside the abutment area and surrounds the abutment area. The end of the convex ridge structure away from the second surface is located on the side of the abutment area away from the first surface. This allows for a rigid abutment between the abutment area and the vehicle body, while also facilitating the formation of a sealing structure between the limiting member and the vehicle body through the abutment of the convex ridge structure. This ensures good stability in the connection between the tailgate limiting mechanism and the vehicle body, while also preventing damage to the portion of the threaded fasteners exposed outside the second surface due to oxidation or other changes in properties.
[0010] In one possible implementation, the head includes a frame. The frame includes a base, a support portion, and a support connection portion. The base is connected to a threaded connection portion, and the support portion is connected to the base via the support connection portion. The distance between the support portion and the first surface is smaller than the distance between the base and the first surface. Thus, while facilitating connection to the threaded connection portion, the support portion prevents the limiting member from undergoing plastic deformation under pressure on the first surface, thereby helping to maintain the limiting position of the rear door assembly.
[0011] In one possible implementation, the side of the base furthest from the first surface is exposed on the second surface. This makes it easier to form an abutment area with the vehicle body, facilitating a rigid abutment between the head and the vehicle body, making it less prone to loosening after the threaded fastener is connected to the vehicle body, and improving the stability of the connection between the threaded fastener and the vehicle body.
[0012] In one possible implementation, the base has support portions on both sides of the limiting member along its length. This ensures that the frame provides relatively uniform support to the limiting member along its length, reducing the likelihood of plastic deformation and facilitating the limiting member's positioning of the tailgate assembly at all points along its length.
[0013] In one possible implementation, the support portion is a plate-like structure parallel to the first surface. This plate-like structure provides a larger stress-bearing surface for the support portion and a larger support surface for the limiting member, facilitating uniform support of the limiting member across the entire structure. This reduces the likelihood of plastic deformation in the limiting member and helps maintain its position within the tailgate assembly. Furthermore, the parallelism of the support portion to the first surface ensures that when the first surface is stressed, the portion of the limiting member between the support portion and the first surface experiences more uniform compression. This reduces the likelihood of plastic deformation due to excessive pressure in any one area, further contributing to maintaining the limiting member's position within the tailgate assembly.
[0014] In one possible implementation, the base is a plate-like structure parallel to the second surface. This plate-like structure provides a larger surface area for contact with the vehicle body, facilitating a stable connection. Furthermore, the parallelism between the base and the second surface allows for a rigid connection between the base and the vehicle body, ensuring a secure connection between the tailgate limiting mechanism and the vehicle body. Simultaneously, the contact between the second surface and the vehicle body creates a sealing structure between the limiting member and the vehicle body. This results in good stability of the connection between the tailgate limiting mechanism and the vehicle body, while also preventing damage to the threaded fasteners exposed outside the second surface due to oxidation or other changes in properties.
[0015] In one possible implementation, the frame is a bent plate-like structure. This helps to increase the strength of the portion of the tailgate limiting mechanism located outside the vehicle body. Furthermore, the frame structure is relatively simple and easy to mold.
[0016] In one possible implementation, the threaded fastener includes a bolt and a skeleton. The base has a mounting hole, through which the bolt passes and is fixedly connected to the base. The head also includes a bolt head and a bolt shank portion, the bolt shank portion being a threaded connection. This facilitates the formation of a threaded connection through the bolt shank; the bolt, being a standard part, is readily available and low-cost, thus reducing the production cost of the tailgate limiting mechanism.
[0017] In one possible implementation, the bolt head is fixedly connected to the base surface near the first face. Thus, when tightening the nut, the contact between the first face and the bolt head prevents the bolt from easily detaching from the base, resulting in good stability of the connection between the bolt and the base. This facilitates the fixed connection between the tailgate limiting mechanism and the vehicle body through the contact between the vehicle body, the base, and the nut.
[0018] In one possible implementation, the bolt is welded to the base. This makes the connection between the bolt and the base convenient and secure.
[0019] In one possible implementation, the first surface has a raised structure, which abuts against the tailgate assembly. This reduces friction between the tailgate limiting mechanism and the tailgate assembly, making the opening and closing of the tailgate assembly easier. Additionally, it reduces the pressure of the tailgate assembly on the limiting member, preventing the limiting member from undergoing plastic deformation due to prolonged exposure to high pressure, thus better maintaining the limiting position of the tailgate assembly.
[0020] In one possible implementation, the limiting component and the threaded fastener are integrated into a single structure. This results in a strong connection between the limiting component and the threaded fastener, making it less prone to damage. Furthermore, the assembly of the tailgate limiting mechanism to the vehicle body is also relatively easy.
[0021] In one possible implementation, the limiting component is a non-metallic part. This makes the limiting component less susceptible to damage from corrosion, thus preventing damage to the tailgate limiting mechanism from the limiting component itself. Furthermore, non-metallic materials are often less expensive, which also helps reduce the cost of the tailgate limiting mechanism.
[0022] In one possible implementation, the limiting member is an elastic element. In this way, the limiting member can act as a buffer, reducing the noise generated by impacts between the tailgate assembly and the limiting member. Furthermore, the tailgate assembly and the limiting member are less prone to damage from impacts. Additionally, it facilitates the formation of a sealing structure between the limiting member and the vehicle body through the contact of the second surface with the vehicle body.
[0023] In one possible implementation, the limiting component is a plastic-coated rubber part. This provides the limiting component with good elasticity and sealing properties, as well as good wear resistance and corrosion resistance. This allows the limiting component to effectively isolate water and air while being less prone to damage, thus extending the service life of both the limiting component and the tailgate limiting mechanism. Furthermore, the plastic coating on the plastic-coated rubber part prevents direct sunlight exposure, reducing the rubber's properties from changing due to prolonged light exposure and further extending the limiting component's lifespan. Additionally, the appearance of the limiting component can be easily altered by changing the plastic coating, facilitating the fulfillment of different aesthetic requirements.
[0024] In one possible implementation, the threaded fastener is made of metal. This results in higher strength for the threaded fastener, facilitating a secure and reliable connection to the vehicle body. Furthermore, the head embedded within the limiting member enhances the strength of the portion of the tailgate limiting mechanism located outside the vehicle body, allowing for a more secure fixation of the tailgate limiting mechanism to the vehicle body when used with the nut. Additionally, the increased strength of the portion of the tailgate limiting mechanism located outside the vehicle body also reduces the likelihood of plastic deformation in this area.
[0025] A second aspect of this application provides a vehicle including a body, a tailgate assembly, a nut, and a tailgate limiting mechanism as described in any of the above embodiments. The tailgate assembly is closable and connected to the vehicle body. The body has a mounting hole communicating with the inner cavity of the body. A limiting member of the tailgate limiting mechanism is located outside the body, with its second surface abutting against the body. A threaded connection portion of the tailgate limiting mechanism passes through the mounting hole and is threadedly connected to a nut located in the inner cavity of the body. The nut abuts against the body, thereby fixing the tailgate limiting mechanism to the body. The first surface of the limiting member abuts against the tailgate assembly in the closed position. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 A schematic diagram of a vehicle provided for an embodiment of this application;
[0028] Figure 2 A cross-sectional schematic diagram of a vehicle provided for an embodiment of this application;
[0029] Figure 3 A schematic diagram of a rear door limiting mechanism provided in an embodiment of this application;
[0030] Figure 4 A schematic diagram of another rear door limiting structure provided in an embodiment of this application;
[0031] Figure 5 A schematic diagram of another rear door limiting structure provided in the embodiments of this application;
[0032] Figure 6 A cross-sectional schematic diagram of a rear door limiting mechanism provided in an embodiment of this application;
[0033] Figure 7 A schematic diagram of a threaded fastener provided for an embodiment of this application;
[0034] Figure 8 This is a schematic diagram of a limiting member provided in an embodiment of this application.
[0035] Explanation of reference numerals in the attached figures:
[0036] 10. Body; 11. D-pillar structural component; 20. Nut; 30. Rear tailgate limiting mechanism;
[0037] 100. Limiting component; 110. First surface; 111. Protruding structure; 120. Second surface; 121. Protruding ridge structure;
[0038] 200, Threaded fastener; 210, Head; 211, Abutting area; 212, Connection area; 220, Threaded connection part; 230, Skeleton; 231, Base; 232, Support part; 233, Support connection part; 240, Bolt; 241, Thread head; 242, Thread rod. Detailed Implementation
[0039] The terminology used in the implementation section of this application is only for explaining specific embodiments of this application and is not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0040] This application provides a vehicle, which may include, but is not limited to, a gasoline-powered vehicle, a hybrid vehicle, a pure electric vehicle, a range-extended electric vehicle, and a plug-in hybrid vehicle.
[0041] Figure 1 This is a schematic diagram of a vehicle provided in an embodiment of this application.
[0042] like Figure 1 As shown in this embodiment, the vehicle includes a body 10 and a tailgate assembly (not shown), which is closably connected to the body 10. The tailgate assembly can move between an open position and a closed position. When the tailgate assembly is in the open position, items can be taken out or placed from the trunk. When the tailgate assembly is in the closed position, the tailgate assembly can prevent items in the trunk from falling out of the trunk.
[0043] To reduce the sway of the tailgate assembly in the closed position, the vehicle also includes a tailgate limiting mechanism 30, which is located on the body 10. When the tailgate assembly is in the closed position, the tailgate limiting mechanism 30 abuts against the tailgate assembly to restrict the movement of the tailgate assembly.
[0044] For example, the vehicle body 10 is provided with a tailgate limiting mechanism 30 on both sides of the vehicle width direction. The tailgate limiting mechanism 30 provided on both sides of the vehicle body 10 in the vehicle width direction can be used to abut against the tailgate assembly on both sides of the vehicle width direction, thereby reducing the sway of the tailgate assembly in the vehicle width direction.
[0045] For example, the vehicle body 10 may include a D-pillar structure 11, and the tailgate limiting mechanism 30 may be disposed on the D-pillar structure 11.
[0046] For example, the tailgate assembly may include a tailgate and a mating component. The tailgate is openably connected to the vehicle body 10, and the mating component is fixedly connected to the tailgate. When the tailgate assembly is in the closed position, the tailgate limiting mechanism 30 abuts against the mating component.
[0047] For example, when the vehicle body 10 is provided with a tailgate limiting mechanism 30 on both sides of the vehicle width direction, the tailgate is provided with a mating part on both sides of the vehicle width direction. The tailgate limiting mechanism 30 provided on both sides of the vehicle body 10 in the vehicle width direction can be used to abut against the mating parts provided on both sides of the tailgate in the vehicle width direction.
[0048] Figure 2 This is a cross-sectional schematic diagram of a vehicle provided in an embodiment of this application.
[0049] like Figure 2 As shown in this embodiment, the vehicle further includes a nut 20, which is disposed within the inner cavity of the vehicle body 10. The tailgate limiting mechanism 30 includes a limiting member 100 and a threaded fastener 200, with the limiting member 100 located outside the vehicle body 10. The threaded fastener 200 includes a head 210 and a threaded connection portion 220. The head 210 is located outside the vehicle body 10, which has an assembly hole communicating with the inner cavity of the vehicle body 10. The threaded connection portion 220 passes through the assembly hole and is threadedly connected to the nut 20 located within the inner cavity of the vehicle body 10. The limiting member 100 is fixed to the vehicle body 10 by the threaded fastener 200, thereby fixing the tailgate limiting mechanism 30 to the vehicle body 10.
[0050] The head 210 is located at one end of the threaded fastener 200, and one end of the threaded connection 220 is connected to the head 210.
[0051] The limiting member 100 includes a first surface 110 and a second surface 120. The first surface 110 and the second surface 120 are located on both sides of the limiting member 100 in the thickness direction. The first surface 110 abuts against the tailgate assembly in the closed position, and the second surface 120 abuts against the vehicle body 10.
[0052] For example, the first surface 110 abuts against a mating part of the tailgate assembly in the closed position.
[0053] For example, the limiting member 100 and the head 210 are located outside the D-pillar structure member 11, the nut 20 is provided in the inner cavity of the D-pillar structure member 11, the D-pillar structure member 11 has an assembly hole that communicates with the inner cavity of the D-pillar structure member 11, the threaded connection part 220 is located in the inner cavity of the D-pillar structure member 11 and threadedly connected to the nut 20, the limiting member 100 is fixed to the D-pillar structure member 11 by the threaded fastener 200 so that the rear door limiting mechanism 30 is fixedly connected to the D-pillar structure member 11, and the second surface 120 abuts against the D-pillar structure member 11.
[0054] For example, the D-column structural member 11 has a water channel, and the limiting member 100 is disposed in the water channel.
[0055] In related technologies, the nut is fixed to the vehicle body by welding or other methods. The first side of the limiting component has a countersunk hole, and the bottom of the countersunk hole has a connecting hole. The threaded connection part of the threaded fastener passes through the connecting hole. When assembling the tailgate limiting mechanism on the vehicle body, the threaded connection part is threadedly connected to the nut by rotating the head of the threaded fastener on the outside of the vehicle body. The head of the threaded fastener is located in the countersunk hole, and the limiting component is pressed and fixed to the vehicle body by the head of the threaded fastener.
[0056] However, in related technologies, the exposed head of the threaded fastener is prone to oxidation and other changes due to prolonged contact with external moisture, leading to damage and a shorter lifespan for the tailgate limiting mechanism. For example, when the threaded fastener is made of metal, the exposed head is susceptible to corrosion due to prolonged contact with moisture. Furthermore, water can easily accumulate in the countersunk hole, further accelerating damage to the head and shortening the lifespan of the tailgate limiting mechanism. Additionally, the exposed head also results in a less refined appearance for the vehicle.
[0057] Figure 3 This is a schematic diagram of a rear door limiting mechanism provided in an embodiment of this application. Figure 3 The perspective in the middle is an oblique perspective looking at the rear door limiting mechanism 30 from the first side 110.
[0058] like Figure 3 As shown, and see Figure 2 Based on this, in the embodiment of this application, the threaded connection part 220 is located on the side of the second surface 120 away from the first surface 110, and the end of the threaded connection part 220 near the first surface 110 is connected to the head 210. The head 210 is embedded in the limiting member 100 and is fixedly connected to the limiting member 100. The nut 20 located in the inner cavity of the body 10 abuts against the body 10 so that the tailgate limiting mechanism 30 is fixedly connected to the body 10.
[0059] Thus, the threaded connection portion 220 is located outside the limiting member 100 and on the side of the second surface 120 away from the first surface 110, so as to facilitate the connection between the tailgate limiting mechanism 30 and the vehicle body 10 through the threaded connection portion 220. With the tailgate limiting mechanism 30 securely connected to the vehicle body 10, the head 210 is embedded within the limiting member 100. The limiting member 100 isolates the head 210 from external moisture, reducing the impact of external moisture on the head 210, making it less prone to oxidation and other changes in properties, thus preventing damage and extending the service life of the tailgate limiting mechanism 30. For example, when the threaded fastener 200 is a metal part, the isolation of external moisture by the limiting member 100 prevents the head 210 from being damaged by corrosion. Furthermore, the head 210 being covered by the limiting member 100 enhances the vehicle's aesthetic appearance.
[0060] The second surface 120 abuts against the body 10, which facilitates the formation of a sealing structure between the limiting member 100 and the body 10 through the abutment between the second surface 120 and the body 10. This makes it difficult for the part of the threaded fastener 200 exposed outside the second surface 120 to come into contact with external moisture, thereby preventing the part of the threaded fastener 200 exposed outside the second surface 120 from being damaged by oxidation or other changes in properties, which helps to extend the service life of the tailgate limiting mechanism 30.
[0061] When assembling the tailgate limiting mechanism 30 on the vehicle body 10, after the threaded connection part 220 is inserted into the assembly hole, the nut 20 is rotated inside the vehicle body 10 to make the threaded connection part 220 threadedly connected to the nut 20, thereby realizing the assembly of the tailgate limiting mechanism 30 and the vehicle body 10.
[0062] The end face of the head 210 away from the threaded connection portion 220 and the side face of the head 210 located between the first surface 110 and the second surface 120 are covered by the limiting member 100.
[0063] In some possible implementations, the first surface 110 has a raised structure 111 for abutting against the tailgate assembly via the raised structure 111.
[0064] In this way, the friction between the tailgate limiting mechanism 30 and the tailgate assembly is small, making it easier to open and close the tailgate assembly. In addition, it also helps to reduce the pressure of the tailgate assembly on the limiting member 100, so that the limiting member 100 is less likely to undergo plastic deformation due to long-term exposure to large pressure, thus helping to maintain the limiting of the tailgate assembly.
[0065] In some examples, the protrusion structure 111 can be integrated with the limiting member 100, so that the connection between the protrusion structure 111 and the limiting member 100 is strong and the protrusion structure 111 is not easy to fall off the first surface 110.
[0066] In other examples, the protrusion structure 111 may also be provided on the first surface 110 by means of bonding or other methods.
[0067] In some possible implementations, the limiting member 100 is a non-metallic component.
[0068] In this way, the limiting component 100 itself is not easily damaged by corrosion, making the tailgate limiting mechanism 30 less likely to be damaged by damage to the limiting component 100. In addition, non-metallic materials are often cheaper, which also helps to reduce the cost of the tailgate limiting mechanism 30.
[0069] For example, the material forming the limiting member 100 may include one or more of the following materials: plastic, rubber, etc.
[0070] In other possible implementations, the limiting member 100 may also be formed of other corrosion-resistant metallic materials.
[0071] In some possible implementations, the limiting member 100 is an elastic member.
[0072] In this way, the limiting member 100 can act as a buffer, reducing the abnormal noise caused by the impact between the tailgate assembly and the limiting member 100. In addition, the tailgate assembly and the limiting member 100 are not easily damaged by impact. Furthermore, it also facilitates the formation of a sealing structure between the limiting member 100 and the body 10 through the contact between the second surface 120 and the body 10.
[0073] In some possible implementations, the limiting member 100 is a plastic-coated rubber part.
[0074] In this way, the limiting component 100 possesses good elasticity and sealing performance, as well as good wear resistance and corrosion resistance. This allows the limiting component 100 to effectively isolate water and air while being less prone to damage, thus extending the service life of both the limiting component 100 and the tailgate limiting mechanism 30. Furthermore, the plastic coating on the rubber-coated parts prevents the rubber from being directly exposed to sunlight, preventing changes in its properties due to prolonged sun exposure and further extending the service life of the limiting component 100. In addition, the appearance of the limiting component 100 can be easily altered by changing the plastic coating on the rubber-coated parts, facilitating the fulfillment of different aesthetic requirements.
[0075] In some possible implementations, the threaded fastener 200 is a metal part.
[0076] In this way, the threaded fastener 200 has high strength, which facilitates a stable and reliable connection with the vehicle body 10. Furthermore, the head 210 embedded within the limiting member 100 also helps to increase the strength of the portion of the tailgate limiting mechanism 30 located outside the vehicle body 10, facilitating a more secure fixation of the tailgate limiting mechanism 30 to the vehicle body 10 in conjunction with the nut 20. In addition, the higher strength of the portion of the tailgate limiting mechanism 30 located outside the vehicle body 10 also makes it less prone to plastic deformation.
[0077] For example, the threaded fastener 200 may be made of steel.
[0078] In other possible implementations, the threaded fastener 200 may also be a non-metallic component. For example, the threaded fastener 200 may be a plastic component.
[0079] In some possible implementations, the limiting member 100 and the threaded fastener 200 are an integral structure. That is, the limiting member 100 and the threaded fastener 200 are a single structural component.
[0080] In this way, the connection strength between the limiting member 100 and the threaded fastener 200 is high and it is not easily damaged. In addition, the assembly of the tailgate limiting mechanism 30 with the body 10 is also relatively easy.
[0081] For example, the threaded fastener 200 can be bonded to the rubber of the retainer 100 during the rubber vulcanization process to form an integral structure.
[0082] Figure 4 This is a schematic diagram of another rear door limiting structure provided in an embodiment of this application. Figure 5 This is a schematic diagram of another rear door limiting structure provided in an embodiment of this application. Figure 6 This is a cross-sectional schematic diagram of a rear door limiting mechanism provided in an embodiment of this application. Figure 4 The perspective in the image is an oblique view from the second side 120 towards the rear door limiting mechanism 30. Figure 5 The perspective in the middle is the frontal view of the rear door limiting mechanism 30 from the second side 120.
[0083] like Figures 4-6 As shown, in some possible embodiments, the end face of the head 210 near the threaded connection portion 220 includes an abutment region 211, which is located outside the threaded connection portion 220 and surrounds the threaded connection portion 220. The abutment region 211 is exposed on the second surface 120 and abuts against the vehicle body 10.
[0084] In this way, the tailgate limiting mechanism 30 is fixed by the rigid contact between the contact area 211 and the body 10, so that the tailgate limiting mechanism 30 is not easy to loosen after it is connected to the body 10, and the connection between the tailgate limiting mechanism 30 and the body 10 is more stable.
[0085] For example, the end face of the head 210 near the threaded connection portion 220 also includes a connection region 212, which is connected to the threaded connection portion 220, and an abutment region 211 is located outside the connection region 212 and surrounds the connection region 212.
[0086] For example, the abutment area 211 may be flush with the second surface 120, or the abutment area 211 may be located on the side of the second surface 120 away from the first surface 110.
[0087] In some possible implementations, the second surface 120 has an annular ridge structure 121 located outside the abutment region 211 and surrounding the abutment region 211, with one end of the ridge structure 121 away from the second surface 120 located on the side of the abutment region 211 away from the first surface 110.
[0088] In this way, while ensuring rigid contact between the contact area 211 and the body 10, it also facilitates the formation of a sealing structure between the limiting member 100 and the body 10 through the contact of the protruding rib structure 121 and the body 10. This ensures that the connection between the tailgate limiting mechanism 30 and the body 10 is stable, and the portion of the threaded fastener 200 exposed outside the second surface 120 is not easily damaged by oxidation or other changes in properties.
[0089] For example, the second surface 120 may have one or more protruding rib structures 121. When the second surface 120 has multiple protruding rib structures 121, a multi-level sealing structure can be formed between the limiting member 100 and the body 10 through the contact between the protruding rib structures 121 and the body 10.
[0090] In some examples, the protruding ridge structure 121 can be integrated with the limiting member 100, so that the connection strength between the protruding ridge structure 121 and the limiting member 100 is strong, and the protruding ridge structure 121 is not easy to fall off from the second surface 120.
[0091] In other examples, the ridge structure 121 may also be provided on the second surface 120 by means of bonding or other methods.
[0092] In some possible embodiments, the head 210 includes a frame 230. The frame 230 includes a base 231, a support 232, and a support connection 233. The base 231 is connected to a threaded connection 220, and the support 232 is connected to the base 231 via the support connection 233. The distance between the support 232 and the first surface 110 is smaller than the distance between the base 231 and the first surface 110.
[0093] In this way, while facilitating connection with the threaded connection 220, the support of the support 232 ensures that the limiting member 100 is not prone to plastic deformation when the first surface 110 is under pressure, which is beneficial for maintaining the limiting of the rear door assembly.
[0094] For example, the base 231, the support 232 and the support connection 233 are an integral structure.
[0095] For example, the frame 230 can be a steel frame 230, which makes the frame 230 stronger and less expensive.
[0096] In some possible implementations, the side of the base 231 away from the first surface 110 is exposed on the second surface 120, and the side of the base 231 away from the first surface 110 abuts against the vehicle body 10. That is, the abutment area 211 is located on the side of the base 231 away from the first surface 110.
[0097] In this way, it is easier to form the contact area 211 that abuts against the body 10, which makes it easier to achieve a rigid contact between the head 210 and the body 10, so that the threaded fastener 200 is not easy to loosen after it is connected to the body 10, and the connection between the threaded fastener 200 and the body 10 is more stable.
[0098] In some possible implementations, the base 231 is provided with support portions 232 on both sides of the limiting member 100 in the length direction.
[0099] In this way, the frame 230 provides relatively uniform support to the limiting member 100 at various points along its length, and the limiting member 100 is not prone to plastic deformation at various points along its length, which is conducive to maintaining the limiting member 100's position on the rear door assembly at various points along its length.
[0100] Figure 7 This is a schematic diagram of a threaded fastener provided in an embodiment of this application.
[0101] like Figure 7 As shown, and see Figure 6 In some possible implementations, the support portion 232 is a plate-like structure parallel to the first surface 110.
[0102] Thus, the support portion 232 has a plate-like structure with a large force-bearing surface, providing a larger support surface for the limiting member 100. This facilitates uniform support of the limiting member 100 by the support portion 232, reducing the likelihood of plastic deformation in the limiting member 100 and maintaining its position on the rear door assembly. Furthermore, since the support portion 232 is parallel to the first surface 110, when the first surface 110 is under force, the portion of the limiting member 100 located between the support portion 232 and the first surface 110 experiences more uniform compression. This reduces the likelihood of plastic deformation in any one area due to excessive pressure, further maintaining the limiting member 100's position on the rear door assembly.
[0103] In some possible implementations, the base 231 is a plate-like structure parallel to the second surface 120.
[0104] Thus, the base 231 has a plate-like structure, providing a larger surface area for contact with the body 10, which facilitates a stable contact with the body 10. Furthermore, the base 231 is parallel to the second surface 120, which allows for a stable connection between the tailgate limiting mechanism 30 and the body 10 through rigid contact with the base 231, while simultaneously forming a sealing structure between the limiting member 100 and the body 10 through contact with the second surface 120. This ensures good stability in the connection between the tailgate limiting mechanism 30 and the body 10, while also preventing damage to the portion of the threaded fastener 200 exposed outside the second surface 120 due to oxidation or other changes in properties.
[0105] In some possible implementations, the skeleton 230 is a bent plate-like structure.
[0106] This helps to improve the strength of the portion of the tailgate limiting mechanism 30 located outside the vehicle body 10. In addition, the frame 230 has a relatively simple structure and is easy to form.
[0107] In some possible embodiments, the threaded fastener 200 includes a bolt 240 and a skeleton 230. The base 231 has a mounting hole through which the bolt 240 passes and is fixedly connected to the base 231. The head 210 also includes a threaded head 241 of the bolt 240 and a portion of the bolt shank 242; that is, the head 210 includes the skeleton 230, the threaded head 241 of the bolt 240, and a portion of the bolt shank 242. The portion of the bolt shank 242 is a threaded connection 220.
[0108] This facilitates the formation of a threaded connection 220 via the screw 242 of the bolt 240. The bolt 240 is a standard part, which is easy to obtain and has a low cost, thus reducing the production cost of the tailgate limiting mechanism 30.
[0109] For example, bolt 240 can be made of steel.
[0110] When the threaded fastener 200 includes a bolt 240, the connection area 212 of the head 210 is located on the cross-section of the screw 242.
[0111] In some possible implementations, the screw head 241 of the bolt 240 is fixedly connected to the side surface of the base 231 near the first face 110.
[0112] In this way, when tightening the nut 20, the first surface 110 abuts against the screw head 241, making it difficult for the bolt 240 to detach from the base 231. The connection between the bolt 240 and the base 231 is stable, which facilitates the fixed connection between the tailgate limiting mechanism 30 and the body 10 through the abutment between the body 10, the base 231, and the nut 20.
[0113] In some possible implementations, bolt 240 is welded to base 231.
[0114] In this way, the connection between bolt 240 and base 231 is more convenient and stable.
[0115] In some other possible embodiments, the threaded connection 220 may also be fixedly connected to the base 231. For example, the threaded connection 220 may be welded to the base 231, or the threaded connection 220 and the skeleton 230 may be an integral structure formed by an integral molding process.
[0116] Figure 8 This is a schematic diagram of a limiting member provided in an embodiment of this application.
[0117] like Figure 8 As shown, in some possible embodiments, the protrusion structure 111 may include multiple protruding ribs arranged side by side along the length direction of the limiting member 100, and the protruding ribs extend along the width direction of the limiting member 100. After the tailgate limiting mechanism 30 is assembled onto the vehicle body 10, the two ends of the protruding ribs are spaced apart in the length direction of the vehicle.
[0118] In this way, the tailgate assembly is less likely to get stuck in the recessed area of the raised structure 111, which facilitates the opening and closing of the tailgate assembly. In addition, the raised structure 111 is also relatively simple and easy to form.
[0119] In some other possible implementations, the protrusion structure 111 may also be a protruding mesh structure.
[0120] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0121] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them. Although the embodiments of this application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A back door check mechanism (30) characterized by, include: A limiting member (100) includes a first surface (110) and a second surface (120), the first surface (110) and the second surface (120) being located on both sides of the limiting member (100) in the thickness direction, the first surface (110) being used to abut against the rear door assembly of the vehicle. A threaded fastener (200) includes a head (210) and a threaded connection portion (220). The threaded connection portion (220) is located on the side of the second surface (120) away from the first surface (110). The end of the threaded connection portion (220) near the first surface (110) is connected to the head (210). The head (210) is embedded in the limiting member (100) and fixedly connected to the limiting member (100).
2. The back door check mechanism (30) according to claim 1, characterized in that The end face of the head (210) near the threaded connection (220) includes an abutment area (211), which is located outside the threaded connection (220) and surrounds the threaded connection (220), and the abutment area (211) is exposed on the second surface (120).
3. The back door check mechanism (30) according to claim 2, characterized in that The second surface (120) has an annular convex ridge structure (121) located outside the abutting area (211) and surrounding the abutting area (211). One end of the convex ridge structure (121) away from the second surface (120) is located on the side of the abutting area (211) away from the first surface (110).
4. The back gate stop mechanism (30) according to claim 1, characterized in that The head (210) includes a skeleton (230); The frame (230) includes a base (231), a support (232), and a support connection (233); The base (231) is connected to the threaded connection (220), and the support (232) is connected to the base (231) through the support connection (233). The distance between the support (232) and the first surface (110) is smaller than the distance between the base (231) and the first surface (110).
5. The back door check mechanism (30) according to claim 4, characterized in that The side surface of the base (231) away from the first surface (110) is exposed on the second surface (120).
6. The back gate stop mechanism (30) according to claim 4, characterized in that The base (231) is provided with the support portion (232) on both sides of the length direction of the limiting member (100).
7. The back gate stop mechanism (30) according to claim 4, characterized in that The support part (232) is a plate-shaped structure parallel to the first surface (110).
8. The back gate stop mechanism (30) according to claim 4, characterized in that The base (231) is a plate-like structure parallel to the second surface (120).
9. The tailgate limiting mechanism (30) according to any one of claims 1-8, characterized in that, The first surface (110) has a raised structure (111) for abutting against the rear door assembly via the raised structure (111).
10. A vehicle characterized by comprising: Includes a vehicle body (10), a tailgate assembly, a nut (20), and a tailgate limiting mechanism (30) as described in any one of claims 1-9; The tailgate assembly is closable and connected to the vehicle body (10); The vehicle body (10) has an assembly hole that connects to the inner cavity of the vehicle body (10). The limiting member (100) of the tailgate limiting mechanism (30) is located outside the vehicle body (10). The second surface (120) of the limiting member (100) abuts against the vehicle body (10). The threaded connection (220) of the tailgate limiting mechanism (30) passes through the assembly hole and is threadedly connected to the nut (20) located in the inner cavity of the vehicle body (10). The nut (20) abuts against the vehicle body (10) to fix the tailgate limiting mechanism (30) to the vehicle body (10). The first surface (110) of the limiting member (100) abuts against the tailgate assembly in the closed position.