Guiding structure, B-pillar upper decoration plate with guiding structure and vehicle

Abstract

The embodiment of the invention provides a guide structure which is suitable for a vehicle and serves as a part of a B-pillar upper trim panel. The guide structure comprises a body and a metal piece. The body is used for guiding the unfolding direction of the air curtain when the air curtain is pushed and abutted and is movably arranged on a vehicle body metal plate, and the body is provided with a pressing and abutting face which is used for stretching into an installation hole of the vehicle body metal plate and shielding the upper portion of the end face of the vehicle body metal plate in the pushing and abutting direction of the air curtain. At least one part of the metal piece is arranged on the pressing face, and an included angle is formed between the metal piece and the end face. In the embodiment of the invention, the guide structure saves the assembly time of bolt fastening through a movable fixing mode of the body and the vehicle body metal plate, and when the guide structure is pushed by the air curtain, the body can drive the metal piece to press the end face of the vehicle body metal plate, and the guide structure is prevented from being separated from the vehicle body metal plate through resistance generated when the body and the metal piece make contact with each other; and the safety of passengers is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a guiding structure of an air curtain. Background Art

[0002] Nowadays, the proportion of vehicles equipped with side air curtains is quite high. In the area of ​​the B-pillar upper trim, the deployment of the side air curtains requires the arrangement of a guide structure, one of which is a guide iron bracket with its own side air curtain, which is fastened to the body sheet metal by bolts during assembly. This guide structure has high strength and stable structure, but it is expensive and has a certain weight. It takes a long time to assemble, which increases the total cost. Summary of the invention

[0003] Multiple aspects of the present application provide a guide structure and a B-pillar upper trim panel and a vehicle having the guide structure, which can realize the cooperation of the self-clamping structure between the B-pillar upper trim panel and the body sheet metal, avoiding the problem of failure of the clamping structure of the existing guide structure at high and low temperatures, resulting in failure of the side air curtain due to explosion.

[0004] An embodiment of the present application provides a guiding structure, including a main body and a metal part. The main body includes a clamping part and a guiding part, the clamping part is used to be movably set in a mounting hole of a vehicle body sheet metal, and the guiding part is used to guide the deployment direction of the air curtain when the air curtain is pushed. The clamping part is provided with a pressing surface, a part of the clamping part passes through the mounting hole, and is pushed against a first sheet metal part of the vehicle body sheet metal. The pressing surface extends into the mounting hole, and shields the end surface of the second sheet metal part of the vehicle body sheet metal in the pushing direction of the air curtain. At least a part of the metal part is arranged on the pressing surface, and there is an angle between the pressing surface and the end surface.

[0005] In some embodiments, the guide portion is provided with a guide slope for guiding the air curtain. The clamping portion is provided on a side of the guide portion that is away from the guide slope, wherein one end of the clamping portion extends outside the guide portion to form a stopper for passing through the mounting hole and pressing against the first sheet metal part. A convex block is formed at the other end of the clamping portion for partially extending into the mounting hole, and the pressing surface is provided on the convex block.

[0006] In some embodiments, the protrusion includes a first boss and a second boss. The first boss is connected to the guide portion, the second boss is disposed on the first boss, and the pressing surface is formed on a side connected to the first boss. The metal part includes a fixed section and a stopper section bent and connected to the fixed section, the fixed section is combined with the first boss, the stopper section is disposed on the pressing surface, and there is a distance between the stopper section and the end face.

[0007] In some embodiments, the metal part further includes a bending section and a clamping section. The bending section is bent from the other end of the fixed section in the opposite direction to the stop section, and the clamping section is connected to the bending section and extends toward the end of the fixed section connected to the stop section. A through hole is provided between the first boss and the guide portion, and the bending section is buckled on the first boss through the through hole, and the fixed section and the clamping section are respectively in contact with two opposite side surfaces of the first boss.

[0008] In some embodiments, the clamping section is provided with a barb, and a limiting hole is provided on a side of the first boss facing the clamping section. The barb is hooked in the limiting hole to prevent the metal piece from detaching from the first boss.

[0009] In some embodiments, the fixing section is provided with a tongue piece on a side adjacent to the stop section, and a positioning hole is provided on a side of the pressing surface connected to the first boss. The tongue piece extends into the positioning hole to prevent the fixing section from moving toward the first convex back toward the guide portion.

[0010] In some embodiments, the metal part also includes an extension section connected to a side of the stop section away from the fixed section, the stop section is bent and connected between the fixed section and the extension section, and the extension section is used to extend into the mounting hole between the first sheet metal part and the second sheet metal part.

[0011] In some embodiments, the pressing surface is provided with a groove, and the stop section is arranged in the groove.

[0012] In some embodiments, the first boss has a coupling portion that is recessed in a surface of the first boss, and the fixing section is engaged in the coupling portion.

[0013] The present application also provides a B-pillar upper trim plate, comprising: a plate body and a guide structure as described in any of the above embodiments. The guide structure is connected to one end of the plate body, and is used to be movably disposed in a mounting hole of a body sheet metal, and guides the deployment direction of the air curtain when the air curtain is pushed.

[0014] An embodiment of the present application also provides a vehicle, comprising a guide structure as described in any of the above embodiments, which is used to be movably arranged in a mounting hole of a vehicle body sheet metal in a B-pillar and to guide the deployment direction of the air curtain when the air curtain is pushed.

[0015] In the embodiment of the present application, the main body of the guide structure is provided with a clamping part, so that when the guide structure is assembled on the body sheet metal, a part of the clamping part can pass through the mounting hole of the body sheet metal and push against the first sheet metal part of the body sheet metal, so that the assembly between the B-pillar upper trim and the body sheet metal can be completed, simplifying the operation procedure, reducing the assembly time, and improving the assembly efficiency. At the same time, the development cost of the B-pillar upper trim can also be reduced by configuring the combination of heterogeneous materials.

[0016] In addition, after assembly is completed, the pressing surface on the other side of the clamping part carries a metal part, which corresponds to the end face of the second sheet metal part of the body sheet metal in the mounting hole of the body sheet metal. Therefore, when the force of the metal part when the airbag is detonated is transmitted to the clamping part, it can be pressed against the end face of the second sheet metal part along the force direction of the airbag against the body. At this time, since the structural strength of the metal part is not easily affected by temperature, the resistance effect when the metal part and the second sheet metal part contact each other can prevent the body from detaching from the mounting hole, thereby avoiding the risk of endangering the occupants and the risk of failure of the air curtain detonation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the use status of the guide structure of an embodiment of the present application.

[0018] Figure 2 for Figure 1 A magnified schematic diagram of part A in the middle.

[0019] Figure 3 It is a partial schematic diagram of the guide structure of an embodiment of the present application.

[0020] Figure 4 This is a side view of a metal component according to an embodiment of the present application.

[0021] Figure 5 This is a three-dimensional diagram of a metal component according to an embodiment of the present application.

[0022] Figure 6 This is a schematic diagram from another perspective of the metal component of an embodiment of the present application.

[0023] Figure 7 This is a schematic diagram of the use status of the guide structure of another embodiment of the present application.

[0024] Figure 8 for Figure 7 An enlarged schematic diagram of part B in the middle.

[0025] Fig. 9 This is a partial schematic diagram of a guide structure according to another embodiment of the present application.

[0026] Fig.10 This is a three-dimensional diagram of a metal component according to another embodiment of the present application.

[0027] Fig.11 This is a schematic diagram from another perspective of a metal component according to another embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with the specific embodiments of the present application and the corresponding drawings.

[0029] See also Figures 1 to 3 The embodiment of the present application provides a guide structure, which can be used as a part of the B-pillar upper trim 90 of the vehicle, and is movably connected between the plate body of the B-pillar upper trim 90 and the body sheet metal, so as to surround the upper part of the B-pillar with the body sheet metal and the ceiling 91 to form a accommodating space for the installation of the air curtain, and guide the direction of the inflation and deployment of the air curtain 80 when the vehicle is hit, so as to ensure that the air curtain 80 acts at the correct position. Among them, the body sheet metal includes a first sheet metal part 701, a second sheet metal part 702 and a mounting hole 71. The first sheet metal part 701 and the second sheet metal part 702 are attached to each other and separated from each other in a local area. The mounting hole 71 passes through the first sheet metal part 701 and the second sheet metal part 702 in this area for the setting of the guide structure.

[0030] The guide structure is connected to one end of the plate body of the B-pillar upper trim 90 near the installation position of the air curtain 80, and includes a main body 1 and a metal part 30. The main body 1 can be, but is not limited to, formed together with the plate body during manufacturing, so it can be made of PP or ABS materials, but it is not limited to this. The main body 1 includes a snap-fit ​​portion 10 and a guide portion 20. The guide portion 20 is connected to the plate body, and a guide slope 201 is provided on the side facing the air curtain 80, so as to guide the air curtain 80 to unfold in a predetermined direction when the air curtain 80 is inflated and pushed, for example, unfolding from the connection between the plate body of the B-pillar upper trim 90 and the ceiling toward the seating area in the vehicle cabin.

[0031] The engaging portion 10 is movably disposed on the body sheet metal through the mounting hole 71, and is provided with a pressing surface 11 for pushing against the body sheet metal. In assembly, after a portion of the engaging portion 10 passes through the mounting hole 71, it is pushed against the surface of the first sheet metal 701 by the elastic force of its own material, and under the balance of force, the side of the engaging portion 10 provided with the pressing surface 11 is driven to move toward the mounting hole 71, so that the pressing surface 11 at least partially extends into the mounting hole 71, and is shielded above the end surface 7021 of the second sheet metal 702 in the pushing direction when the air curtain 80 is deployed.

[0032] The metal part 30 is fixed to the body 1, and at least a part of it is disposed on the pressing surface 11. For example, the metal part 30 can be a sheet metal structure that matches the area of ​​the pressing surface 11 and covers the pressing surface 11 accordingly, or a bent metal structure, one part of which is fixed to the guide portion and the other part is fixed to the pressing surface 11, so as to increase the strength of the pressing surface 11 and the resistance to sliding between the guide structure and the body sheet metal when they contact each other. In addition, since at least a part of the metal part 30 is located on the pressing surface 11, the metal part 30 is also shielded above the end surface 7021 of the second sheet metal part 702 in the pushing direction of the air curtain 80, and has an angle θ with the end surface 7021.

[0033] Specifically, in some embodiments of the present application, the engaging portion 10 is located on the side of the guide portion 20 facing away from the guide bevel 201. One end of the engaging portion 10 is disposed on the guide portion 20 and is formed with a protrusion 12, and the pressing surface 11 is disposed on the protrusion 12; the other end of the engaging portion 10 may be, but is not limited to, extending in a direction away from the protrusion to the outside of the guide portion 20 to form a relatively small thickness stopper 13, which is used to push against the first sheet metal part 701 in the reverse direction after passing through the mounting hole 71.

[0034] In other embodiments of the present application, the protrusion 12 further includes a first boss 121 and a second boss 122. The first boss 121 is connected to the guide portion 20, and the second boss 122 is disposed on the first boss 121 and protrudes in a direction away from the guide portion 20, so that the first boss 121 and the second boss 122 form a similar step-like structure in appearance. In this step-like structure, the side where the second boss 122 is connected to the first boss 121 forms a pressing surface 11.

[0035] like Figures 2 to 6 As shown, the metal part 30 is disposed on the protrusion 12, and may have a corresponding appearance corresponding to the structural form of the first boss 121 and the second boss 122. For example, the metal part 30 may include a fixed section 31 and a stop section 32 connected by a bend. The fixed section 31 is used to be combined with the first boss 121, and the stop section 32 is correspondingly combined with the second boss 122 and covers the pressing surface 11. In addition, in other embodiments of the present application, the metal part 30 may also have a variety of bending structures to increase the bonding strength between the metal part 30 and the body 1, to prevent the metal part 30 from falling off the body 1, or to prevent the metal part 30 from slipping off the end surface 7021 of the second sheet metal part 702 when in contact with the second sheet metal part 702.

[0036] For example, in some embodiments, the metal member 30 includes a fixed section 31, a stop section 32, a bent section 33 and a clamping section 34. The stop section 32 is bent and connected to the top of the fixed section 31, and is used to be set on the pressing surface 11. The bent section 33 is bent from the bottom end of the fixed section 31 in the opposite direction relative to the stop section 32, so that the bent section 33 and the stop section 32 are respectively located on two opposite sides of the fixed section 31, and extend toward the top of the fixed section 31 to form the clamping section 34, so that the overall structure of the metal member 30 is similar to a U-shaped metal clip.

[0037] In addition, in the embodiment where the structure of the metal part 30 is in the form of a metal clip, a through hole 15 is further provided at the position where the first boss 121 of the engaging part 10 and the guide part 20 are connected. During assembly, the bending section 33 is buckled on the first boss 121 through the through hole 15, and through the elasticity of the metal material itself, the fixing section 31 and the clamping section 34 are respectively in contact with the two opposite sides of the first boss 121, so that the metal part 30 is clamped and fixed on the convex block 12 of the engaging part 10, and the stopper section 32 is pressed against the pressing surface 11. Therefore, when the engaging part 10 is pushed against the guide part 20 by the force F of the air curtain 80 being deployed and is synchronously pressed against the body sheet metal in the mounting hole 71, the force borne by the metal part 30 will be transmitted to the convex block 12 through the pressing surface 11 and dispersed, so that the overall force of the engaging part 10 is uniform, which has the advantage of not being easy to break.

[0038] It is worth mentioning that when the metal member 30 is combined with the protrusion 12, there is a gap between the stopper section 32 and the end surface 7021 of the second sheet metal member 702, so that the body 1 can maintain a non-contact state between the metal member 30 and the second sheet metal member 702 when not pushed by the air curtain 80, thereby avoiding unnecessary collision between the two metal parts. Generally speaking, collision between metals may cause scratches or wear of metal parts and affect their performance, and may also cause internal noise and vibration, affecting the comfort of the driver.

[0039] In addition, in order to make the metal component 30 more firmly combined with the protrusion 12 and maintain the flatness and consistency of the structure, in some embodiments, the first boss 121 further has a combination portion 1213, and the second boss 122 is provided with a groove 1221. The combination portion 1213 is recessed in the side surface of the first boss 121 corresponding to the fixing section 31, and the groove 1221 is recessed in the pressing surface 11, so that when the metal component 30 is assembled, the fixing section 31 can be engaged in the combination portion 1213, and the stop section 32 can be engaged in the groove 1221 accordingly. Of course, in some embodiments, the protrusion 12 may also be provided with only a coupling portion 1213 or a groove 1221. For example, when the protrusion 12 is provided with only a coupling portion 1213, after the fixing section 31 is engaged with the coupling portion 1213, the stop section 32 can correspond to the pressing surface 11. When the protrusion 12 is provided with only a groove 1221, the fixing section 31 is fixed to the side of the first boss 121 by welding or bonding, and the stop section 32 is engaged in the groove 1221.

[0040] See also Figures 7 to 11 , the guiding structure provided in another embodiment of the present application is substantially the same as the above embodiment in structure, and the difference between the two is that the metal member 30 of the present embodiment further includes an extension section 35. The extension section 35 is connected to the side of the stop section 32 away from the fixed section 31, so that the stop section 32 is bent and connected between the fixed section 31 and the extension section 35, thereby forming a hook-shaped structure. When the metal member 30 is fixed to the protrusion 12, the hook-shaped structure can extend between the first sheet metal member 701 and the second sheet metal member 702, so that when the stop section 32 of the metal member 30 is pressed against the end surface 7021 of the second sheet metal member 702, the extension section 35 can provide a further limiting effect between the first sheet metal member 701 and the second sheet metal member 702, thereby preventing the metal member 30 from sliding out of the mounting hole 71.

[0041] In order to prevent the metal part 30 from falling off the body sheet metal, in some embodiments, the first boss 121 is further provided with a limiting hole 1211, and a barb 341 cooperating therewith is provided on the clamping section 34. The limiting hole 1211 is recessed in a side surface of the first boss 121 facing the clamping section 34, and the barb 341 can be bent from the clamping section 34 toward the fixing section 31 and protrude from the side of the clamping section 34 facing the fixing section 31, for example: after partially cutting two opposite sides of the clamping section 34, the cut part is slightly bent toward the fixing section 31 to form the barb 341. In this way, when the metal part 30 is fixed to the protrusion 12, the barb 341 can be buckled in the limiting hole 1211, so that the metal part 30 is blocked by the limiting hole 1211 in the extension direction of the first protrusion 12, and the metal part 30 can be prevented from falling off from the first boss 121.

[0042] In addition, in order to further enhance the stability of the metal member 30 when combined with the protrusion 12, in some embodiments, the fixing section 31 is further provided with a tongue 311, which extends on the side of the fixing section 31 adjacent to the stop section 32, and the second boss 122 is provided with a positioning hole 1212, which is formed on the side of the pressing surface 11 connected to the first boss 121, for the tongue 311 to be inserted. In this way, when the metal member 30 is combined with the protrusion 12, the tongue 311 can be extended into the positioning hole 1212 accordingly, so that the tongue 311 of the metal member 30 is blocked by the positioning hole 1212 in the direction of the first protrusion 12 away from the guide portion 20, which can prevent the fixing section 31 from shaking or deviating on the first boss 121 and detaching from the surface of the first boss 121.

[0043] It can be understood that the metal part 30 can correspond to the limiting hole 1211 and the positioning hole 1212 of the first boss 121 respectively during assembly through the configuration of the barb 341 and the tongue 311, so that the metal part 30 can not only be fixed by the elastic clamping of the fixing section 31 and the clamping section 34, but also can be quickly and accurately installed and positioned by plugging the limiting hole 1211 and the positioning hole 1212, and further limit the movement of the metal part 30 in the extension direction of the first boss 121 and the lateral direction of the first boss 121, so that the metal part 30 is firmly set on the clamping portion 10.

[0044] In some embodiments, the metal member 30 may also be a flat metal structure, for example, the metal member 30 only has a stopper section 32, and is disposed on the pressing surface 11 in the form of a metal sheet. In practice, the metal sheet may be, but is not limited to, fixed to the pressing surface 11 by welding or bonding, for example, by hot-melting the pressing surface 11 of the body 1 to bond the metal member 30 to the pressing surface 11, or by bonding the metal sheet to the pressing surface 11 by an adhesive.

[0045] In addition to a single metal sheet, the metal member 30 may also be an L-shaped structure, for example, the metal member 30 only has a fixing section 31 and a stop section 32, and is fixed at the connection between the first boss 121 and the second boss 122. In practice, the fixing section 31 and the stop section 32 may be, but are not limited to, fixed to one side of the first boss 121 and the pressing surface 11 of the second boss 122 by welding, bonding or snapping, so as to achieve the purpose of the stop section 32 abutting against the pressing surface 11. Alternatively, the fixing section 31 and the stop section 32 may be snapped onto the protrusion 12 through the above-mentioned joint 1213 and the groove 1221.

[0046] The technical solution in the embodiments of the present application is described in detail below in conjunction with specific application scenarios.

[0047] Application scenario 1. After the guide structure is installed on the body sheet metal, when the air curtain 80 is not inflated and deployed, the body 1 is not in contact with the body sheet metal. Figure 1 and Figure 2 As shown, when the air curtain 80 is not inflated and deployed, there is a gap between the engaging portion 10 and the second sheet metal component 702 , and between the guiding portion 20 and the first sheet metal component 701 , so they remain non-contacting.

[0048] Application scenario 2. When the vehicle is hit and the air curtain 80 is detonated, the air curtain 80 will move into the vehicle along the guide slope 201, and when the air curtain 80 contacts the ceiling 91 in the vehicle, the unfolding force of the air curtain 80 will drive the ceiling 91 to flip around the weakened groove 92. At the same time, the overlapping area of ​​the ceiling 91 and the B-pillar upper trim 90 will also flip into the vehicle, so that an unobstructed area is formed between the ceiling 91 and the B-pillar upper trim 90, which is convenient for the air curtain 80 to unfold downward into the vehicle.

[0049] In this process, due to the configuration of the metal part 30, after it is clamped with the first boss 121 of the clamping part 10, the stopper section 32 of the metal part 30 will increase the force-bearing area, so that the overall force-bearing area of ​​the metal part 30 becomes larger and the force value becomes smaller. At the same time, the metal part 30 will also transmit the force through the first boss 121 of the clamping part 10, so that the force is further dispersed, so that the overall force of the B-pillar self-clamping structure is more uniform, and the clamping structure is not easy to break and fail. In some embodiments of the present application, the metal part 30 also has a hook-shaped extension section 35. When the B-pillar upper trim panel 90 is acted upon by the air curtain 80, it hooks the second sheet metal part 702 in the direction of disengagement, further ensuring the reliability of the structure.

[0050] Specifically, when the air curtain 80 is inflated and deployed, the guide inclined surface 201 of the guide part 20 will be pushed by the force F of the air curtain 80, forcing the guide part 20 to drive the engaging part 10 to deflect in the mounting hole 71, so that the engaging part 10 abuts against the body sheet metal. Among them, the metal part 30 on the engaging part 10 abuts against the second sheet metal part 702, and abuts against the end face 7021 of the second sheet metal part 702 through the stop section 32, and the stop member 13 abuts against the first sheet metal part 701. Among them, due to the angle θ between the stop section 32 and the end face 7021 of the second sheet metal part 702, the corner of the end face 7021 abuts against the stop section 32, and at the same time, under the contact resistance between the metal materials, the metal part 30 is tightly combined with the second sheet metal part 702 in the mounting hole 71, preventing the metal part 30 from sliding out of the mounting hole 71, thereby improving the product reliability.

[0051] Application scenario 3. Under the force of the air curtain 80 , the extension section 35 of the metal member 30 extending between the first sheet metal member 701 and the second sheet metal member 702 can hook the second sheet metal member 702 , further ensuring that the engaging portion 10 is tightly pressed against the body sheet metal and will not fall off.

[0052] Generally speaking, on the B-pillar of a vehicle, the guide structure formed on the trim usually only provides an inclined surface for guidance. However, this method is easily limited by the characteristics of the material that makes up the upper trim. For example, if PP materials are used, such as the common PP leather-grained hard parts and PP low-pressure injection molding parts, although the cost itself is low, they still need to be fixed to the body sheet metal with bolts, and the bolts are covered with air curtain covers, which destroys the consistency of appearance. If ABS materials are used, the most common ones are PC plus ABS low-pressure injection molding parts. Although they can be clamped and fixed with sheet metal parts with their own buckles, they are easily affected by temperature, causing the clamping structure to fail, resulting in the upper trim of the B-pillar falling off, causing injuries to the occupants.

[0053] The embodiment of the present application combines metal parts with the main body to enhance the bonding strength between the guide structure and the body sheet metal, and can prevent the guide structure from falling off the body sheet metal when the main body is pushed by the force of the deployment of the air curtain, thereby solving the problem that the connection relationship between the B-pillar upper trim and the body sheet metal is easily limited by the constituent materials and / or the snap-on structure fails at high temperatures, resulting in insufficient strength of the connection structure, while retaining the advantages of easy assembly and low cost of ABS materials.

[0054] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A guide structure, characterized in that: include: The body comprises a clamping part and a guiding part, wherein the clamping part is used to be movably arranged in a mounting hole of a vehicle body sheet metal, and the guiding part is used to guide the deployment direction of the air curtain when the air curtain is pushed, wherein the clamping part is provided with a pressing surface, a part of the clamping part passes through the mounting hole and is pushed against a first sheet metal part of the vehicle body sheet metal, and the pressing surface extends into the mounting hole and shields above an end surface of a second sheet metal part of the vehicle body sheet metal in the pushing direction of the air curtain; as well as The metal part is at least partially disposed on the pressing surface and has an included angle between the pressing surface and the end surface.

2. The guide structure according to claim 1, characterized in that: The guide portion is provided with a guide inclined surface for guiding the air curtain, and the clamping portion is provided on the side of the guide portion facing away from the guide inclined surface, wherein one end of the clamping portion extends outside the guide portion to form a stopper for passing through the mounting hole and pushing against the first sheet metal part, and the other end of the clamping portion is formed with a protrusion for partially extending into the mounting hole, and the pressing surface is provided on the protrusion.

3. The guide structure according to claim 2, characterized in that: The protrusion includes a first boss and a second boss, the first boss is connected to the guide portion, the second boss is arranged on the first boss, and the pressing surface is formed on a side connected to the first boss, wherein the metal part includes a fixed section and a stop section bent and connected to the fixed section, the fixed section is combined with the first boss, the stop section is arranged on the pressing surface, and there is a distance between the stop section and the end face.

4. The guide structure according to claim 3, characterized in that: The metal part also includes a bending section and a clamping section, wherein the bending section is bent in the opposite direction from the other end of the fixed section relative to the stop section, and the clamping section is connected to the bending section and extends toward one end of the fixed section connected to the stop section, wherein a through hole is provided between the first boss and the guide portion, and the bending section is buckled on the first boss through the through hole, and the fixed section and the clamping section are respectively in contact with two opposite side surfaces of the first boss.

5. The guide structure according to claim 4, characterized in that: The clamping section is provided with a barb, and a limiting hole is provided on a side of the first boss facing the clamping section, and the barb is hooked in the limiting hole to prevent the metal piece from detaching from the first boss.

6. The guide structure according to claim 4, characterized in that: The fixing section is provided with a tongue piece on a side adjacent to the stop section, and the pressing surface is connected to a side of the first boss and provided with a positioning hole, and the tongue piece extends into the positioning hole to prevent the fixing section from moving toward the first convex back toward the guide part.

7. The guide structure according to claim 3, characterized in that: The metal part also includes an extension section connected to a side of the stop section away from the fixed section, the stop section is bent and connected between the fixed section and the extension section, and the extension section is used to extend into the mounting hole between the first sheet metal part and the second sheet metal part.

8. The guide structure according to claim 3, characterized in that: The pressing surface is provided with a groove, and the stop section is arranged in the groove.

9. The guide structure according to claim 3, characterized in that: The first boss has a coupling portion, the coupling portion is recessed in the surface of the first boss, and the fixing section is engaged in the coupling portion.

10. A B-pillar upper trim, characterized in that: It comprises: a plate body and a guide structure as described in any one of claims 1 to 9, wherein the guide structure is connected to one end of the plate body, is movably arranged in a mounting hole of a vehicle body sheet metal, and guides the deployment direction of the air curtain when the air curtain is pushed.

11. A vehicle, characterized in that: It comprises a guide structure as claimed in any one of claims 1 to 9, which is used to be movably arranged in a mounting hole of a vehicle body sheet metal in a B-pillar and to guide the deployment direction of the air curtain when the air curtain is pushed.

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