A bolt structure and vehicle

Abstract

This invention discloses a bolt structure and a vehicle. The bolt structure includes a bolt and a washer. One end of the bolt is provided with a nut. A groove is formed on the outer peripheral wall of the bolt, which is radially recessed and extends through the bolt axially. The washer is fitted onto the bolt and abuts against the nut. A protrusion is formed on the inner peripheral wall of the washer, which fits into the groove and engages within the groove. A first step surface and a second step surface are formed on the side wall of the protrusion. At the junction of the first step surface and the second step surface, the second step surface abruptly depresses into the protrusion. This allows the side wall of the groove to detach from the first step surface and impact the second step surface when the bolt structure is impacted. The impact generates a huge shear stress, causing the bolt to break and the nut to separate from the bolt. This allows the door to be easily separated from the vehicle body, facilitating the exit of passengers for safety or the rescue of injured passengers, thus shortening escape or rescue time.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, and more particularly to a bolt structure and a vehicle. Background Technology

[0002] With the rapid development of the automotive industry, there are more and more cars on the road, and traffic accidents caused by collisions occur frequently. After a traffic accident, it is necessary for the occupants of the vehicle to quickly exit the vehicle to avoid secondary accidents and prevent further injury; or it is necessary to quickly open the car doors to rescue injured occupants for medical treatment. Whether it is for occupants to exit the vehicle to avoid danger or for rescuing injured occupants, it is necessary to open the car doors in a timely manner to allow people to enter and exit the vehicle.

[0003] Traditionally, car doors are connected to the vehicle body using door hinges and bolts. In the event of a collision, especially a side impact, the car doors may become stuck to the vehicle body due to significant deformation or damage to the door locks. This can prevent the doors from opening or separating from the vehicle, hindering the occupants from escaping to safety or rescuing injured passengers, thus delaying escape or rescue time. Summary of the Invention

[0004] This invention provides a bolt structure and a vehicle to solve the problem in the prior art where, after a collision, the vehicle door is stuck to the vehicle body and cannot be opened or separated from the vehicle body, thus affecting the driver and passengers from leaving the vehicle to avoid danger or to rescue injured drivers and passengers from the vehicle, resulting in missed escape or rescue time.

[0005] This application provides a bolt structure, including a bolt and a washer;

[0006] A nut is provided at one end of the screw; a groove is formed on the outer peripheral wall of the screw, which is recessed radially and extends through the screw axially.

[0007] The washer is fitted onto the screw and can abut against the nut;

[0008] The inner peripheral wall of the washer has a protrusion that matches the groove, and the protrusion is engaged in the groove; the side wall of the protrusion has a first step surface and a second step surface, and at the junction of the first step surface and the second step surface, the second step surface is abruptly recessed into the protrusion so that when the bolt structure is impacted, the side wall of the groove separates from the first step surface and impacts the second step surface.

[0009] Furthermore, the end of the screw near the nut is provided with a weakening structure; the weakening structure is configured to cause the screw to break when the impact force of the sidewall of the groove hitting the second step surface exceeds a preset threshold, so as to separate the nut from the screw.

[0010] Furthermore, the weakening structure is an annular groove, which is located on the outer peripheral wall of the screw.

[0011] Furthermore, the thickness of the washer along the axial direction of the screw is greater than the thickness of the annular groove along the axial direction of the screw.

[0012] Furthermore, the number of the grooves and the protrusions are two or more; each of the protrusions corresponds to one of the grooves and is engaged within the groove.

[0013] Furthermore, each of the grooves is evenly distributed along the circumference of the screw on the outer peripheral wall of the screw.

[0014] Furthermore, a movable gap is provided between the inner peripheral wall of the washer and the outer peripheral wall of the screw.

[0015] A vehicle includes a body, a door, and the aforementioned bolt structure, wherein the door is mounted on the body via the bolt structure.

[0016] Furthermore, it also includes a door hinge, which includes a male hinge and a female hinge, which are rotatably connected; the female hinge is fixed to the vehicle body, and the male hinge is fixed to the door by the bolt structure.

[0017] Furthermore, the female hinge is fixed to the vehicle body by the bolt structure.

[0018] The beneficial effects achieved by this invention are as follows:

[0019] The technical solution disclosed in this invention includes a screw and a washer. In use, the car door can be connected to the vehicle body through the screw and the washer, so that the bolt structure is no different from a conventional bolt under normal tightening or loosening conditions, and plays the role of connecting the car door and the vehicle body.

[0020] The present invention further improves upon this invention by providing a groove on the outer peripheral wall of the screw and fitting a washer onto the screw. A protrusion adapted to the groove is formed on the inner peripheral wall of the washer, and the protrusion engages within the groove. A first stepped surface and a second stepped surface are formed on the side wall of the protrusion. At the junction of the first and second stepped surfaces, the second stepped surface abruptly deflects into the protrusion, so that when the bolt structure is impacted, the side wall of the groove separates from the first stepped surface and impacts the second stepped surface. In use, when the car door is subjected to a sudden and severe impact, the door will cause the screw to rotate momentarily relative to the washer. During this rotation, the side wall of the groove on the screw separates from the first stepped surface on the side wall of the protrusion on the washer and instantly impacts the second stepped surface. The impact generates enormous shear stress, causing the screw to break, thus separating the nut from the screw. This allows the car door to easily separate from the vehicle body, facilitating the exit of occupants for safety or the rescue of injured occupants, thus shortening escape or rescue time. Attached Figure Description

[0021] Figure 1 This is a front view of the bolt structure provided in this embodiment.

[0022] Figure 2 This is a top view of the bolt structure provided in this embodiment.

[0023] Figure 3 for Figure 2 A magnified view of C.

[0024] Figure 4 for Figure 2 Cross-sectional view of AA.

[0025] Figure 5 for Figure 2 Cross-sectional view of BB in the middle.

[0026] Figure 6 This is a front view of the bolt provided in this embodiment.

[0027] Figure 7 This is a top view of the bolt provided in this embodiment.

[0028] Figure 8 This is a front view of the gasket provided in this embodiment.

[0029] Figure 9 This is a top view of the washer provided in this embodiment.

[0030] Figure 10 for Figure 9 A magnified view of D.

[0031] Figure 11 This is a schematic diagram of the bolt structure installed on the door hinge for this embodiment.

[0032] Figure 12 This is a schematic diagram of the bolt structure provided in this embodiment, showing the breakage and separation of the bolt and the bolt cap.

[0033] Figure 13 This is a schematic diagram of the bolt structure provided in this embodiment, showing the separation of the screw and washer.

[0034] Figure label:

[0035] 1-Screw; 2-Nut; 3-Washer; 4-Groove; 5-Protrusion; 6-First step surface; 7-Second step surface; 8-Weakening structure; 9-Door hinge; 10-Male hinge; 11-Female hinge.

[0036] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals correspond to the same or similar components. The terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Specific Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific embodiments should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0039] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0040] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0041] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0042] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0043] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0044] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] Example 1

[0046] A bolt structure, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes screw 1 and washer 3;

[0047] A nut 2 is provided at one end of the screw 1; a groove 4 is formed on the outer peripheral wall of the screw 1 in the radial direction of the screw 1, and the groove 4 passes through the screw 1 in the axial direction of the screw 1;

[0048] Washer 3 is fitted onto screw 1 and can abut against nut 2;

[0049] The inner peripheral wall of the washer 3 has a protrusion 5 that matches the groove 4, and the protrusion 5 is engaged in the groove 4; the side wall of the protrusion 5 has a first step surface 6 and a second step surface 7. At the junction of the first step surface 6 and the second step surface 7, the second step surface 7 is recessed and abruptly recessed towards the protrusion 5, so that when the bolt structure is impacted, the side wall of the groove 4 is separated from the first step surface 6 and impacts the second step surface 7.

[0050] In this embodiment, as Figure 3 and Figure 10As shown, a groove 4 is provided on the outer peripheral wall of the screw 1, and a protrusion 5 is provided on the inner peripheral wall of the washer 3. The protrusion 5 is adapted to and engaged in the groove 4. A first stepped surface 6 and a second stepped surface 7 are formed on the side wall of the protrusion 5. At the junction of the first stepped surface 6 and the second stepped surface 7, the second stepped surface 7 is abruptly recessed towards the protrusion 5, so that when the bolt structure is impacted, the side wall of the groove 4 separates from the first stepped surface 6 and impacts the second stepped surface 7. Specifically, in use, for example, when the bolt structure is connected between the car door and the car body, when the car door is impacted... In the event of a violent impact, the car door shifts, causing the screw 1 to rotate instantaneously relative to the washer 3. During this rotation, the side wall of the groove 4 on the screw 1 separates from the first step surface 6 on the side wall of the protrusion 5 on the washer 3 and instantly impacts the second step surface 7. The impact generates enormous shear stress, causing the screw 1 to break. This separates the nut 2 from the screw 1, allowing the car door to easily separate from the vehicle body. This facilitates the exit of passengers for safety or the rescue of injured passengers, shortening escape or rescue time.

[0051] like Figures 4-6 As shown, a weakening structure 8 is provided at the end of the screw 1 near the nut 2. The weakening structure 8 is configured to cause the screw 1 to break when the impact force of the sidewall of the groove 4 hitting the second step surface 7 exceeds a preset threshold, thereby causing the nut 2 to separate from the screw 1. In this embodiment, by providing the weakening structure 8 on the screw 1, the resistance of the sidewall of the groove 4 hitting the second step surface 7 is reduced, making it easier for the screw 1 and the nut 2 to separate under shear stress.

[0052] like Figure 6 As shown, the weakening structure 8 is an annular groove located on the outer peripheral wall of the screw 1. In this embodiment, the weakening structure 8 is an annular groove located on the outer peripheral wall of the screw 1. The structure is simple, facilitates the installation of the washer 3, and helps the screw 1 to break under shear stress and separate from the nut 2.

[0053] like Figure 4As shown, the thickness of the washer 3 along the axial direction of the screw 1 is greater than the thickness of the annular groove along the axial direction of the screw 1. In this embodiment, the axial thickness of the washer 3 is greater than the axial thickness of the annular groove, causing the screw 1 to break. After the nut 2 separates from the screw 1, the washer 3 will not immediately separate from the screw 1. Specifically, in use, when the car door is subjected to a sudden and violent impact, the car door pulls the screw 1 to rotate instantaneously relative to the washer 3. During the rotation, the side wall of the groove 4 on the screw 1 separates from the first step surface 6 on the side wall of the protrusion 5 on the washer 3 and instantly impacts the second step surface 7. At the moment of impact, a huge shear stress is generated, which breaks the screw 1, thereby separating the nut 2 from the screw 1. However, the washer 3 is still fitted on the screw 1 to slow down the speed at which the car door separates from the car body, so as to prevent the driver and passengers from being accidentally injured by the falling car door, and at the same time reduce the degree of damage to the car door to facilitate maintenance.

[0054] like Figures 7-9 As shown, there are two or more grooves 4 and protrusions 5; each protrusion 5 corresponds to a groove 4 and is engaged within the groove 4. In this embodiment, the cooperation of multiple grooves 4 and protrusions 5 results in greater shear stress generated at the moment of impact between the sidewall of the groove 4 and the second step surface 7 on the sidewall of the protrusion 5, making it easier for the screw 1 to break, thereby separating the nut 2 from the screw 1.

[0055] like Figures 7-9 As shown, each groove 4 is evenly distributed along the circumference of the screw 1 on the outer peripheral wall of the screw 1. In this embodiment, each groove 4 is evenly arranged on the outer peripheral wall of the screw 1, so that the huge shear stress generated when the side wall of each groove 4 impacts the second step surface 7 on the side wall of the corresponding protrusion 5 is more uniform, and the screw 1 is more likely to break.

[0056] like Figure 3 As shown, a movable gap is provided between the inner peripheral wall of the washer 3 and the outer peripheral wall of the screw 1. In this embodiment, the movable gap between the washer 3 and the outer peripheral wall of the screw 1 allows the screw 1 to have room to expand when it is impacted, preventing it from jamming with the washer 3, so that the screw 1 can rotate instantaneously relative to the washer 3.

[0057] Example 2

[0058] A vehicle includes a body, doors, and the aforementioned bolt structure, wherein the doors are mounted on the body via the bolt structure.

[0059] This embodiment takes a car door connected to the vehicle body by bolts as an example. In actual use, when the car door is subjected to a sudden and violent impact, the car door pulls the screw 1 to rotate instantaneously relative to the washer 3. During the rotation, the sidewalls of the grooves 4 on the screw 1 separate from the first step surface 6 on the sidewall of the corresponding protrusion 5 on the washer 3 and instantly impact the second step surface 7. At the moment of impact, a huge shear stress is generated, causing the screw 1 to break from the annular groove. Thus, the nut 2 separates from the screw 1, allowing the car door to be easily separated from the vehicle body. This facilitates the exit of the driver and passengers to avoid danger or to rescue injured drivers and passengers from the vehicle, shortening the escape or rescue time. At the same time, the washer 3 slows down the speed at which the car door falls to prevent the falling door from accidentally injuring the driver and passengers, and also reduces the degree of damage to the car door, making it easier to repair.

[0060] like Figures 11-13 As shown, it also includes a door hinge 9, which includes a male hinge 10 and a female hinge 11, which are rotatably connected. The female hinge 11 is fixed to the vehicle body, and the male hinge 10 is fixed to the door by a bolt structure. In this embodiment, one side of the door is fixed to the vehicle body by a bolt structure, the male hinge 10, and the female hinge 11. Specifically, when the door is subjected to a sudden and violent impact, the door pull screw 1 rotates instantaneously relative to the washer 3. During the rotation, the side wall of the groove 4 impacts the second step surface 7 of the protrusion 5, generating huge shear stress, causing the screw 1 to break. As a result, the nut 2 separates from the screw 1, allowing the door to easily separate from the male hinge 10 of the door hinge 9, and thus the door to easily separate from the vehicle body.

[0061] Furthermore, the female hinge 11 is fixed to the vehicle body by bolts. During use, when the door is subjected to a sudden and violent impact, the screw 1 connecting the male hinge 10 and the female hinge 11 can break, further ensuring that the door can be easily separated from the vehicle body.

[0062] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A bolt structure, characterized in that, Includes a screw (1) and a washer (3); One end of the screw (1) is provided with a nut (2); a groove (4) is formed on the outer peripheral wall of the screw (1) in the radial direction of the screw (1), and the groove (4) passes through the screw (1) axially. The washer (3) is fitted onto the screw (1) and can abut against the nut (2); The inner peripheral wall of the washer (3) has a protrusion (5) that matches the groove (4), and the protrusion (5) is engaged in the groove (4); the side wall of the protrusion (5) has a first step surface (6) and a second step surface (7), and at the junction of the first step surface (6) and the second step surface (7), the second step surface (7) is recessed and abruptly depresses into the protrusion (5), so that when the bolt structure is impacted, the side wall of the groove (4) is disengaged from the first step surface (6) and impacts the second step surface (7).

2. The bolt structure according to claim 1, characterized in that, The screw (1) has a weakening structure (8) at one end near the nut (2); the weakening structure (8) is configured to cause the screw (1) to break when the impact force of the side wall of the groove (4) hitting the second step surface (7) exceeds a preset threshold, so that the nut (2) is separated from the screw (1).

3. A bolt structure according to claim 2, characterized in that, The weakening structure (8) is an annular groove, which is located on the outer peripheral wall of the screw (1).

4. A bolt structure according to claim 3, characterized in that, The thickness of the washer (3) along the axial direction of the screw (1) is greater than the thickness of the annular groove along the axial direction of the screw (1).

5. A bolt structure according to any one of claims 1-4, characterized in that, The number of the groove (4) and the protrusion (5) are two or more respectively; each of the protrusions (5) corresponds to one of the grooves (4) and is engaged in the groove (4).

6. A bolt structure according to claim 5, characterized in that, Each of the grooves (4) is evenly distributed along the circumference of the screw (1) on the outer peripheral wall of the screw (1).

7. A bolt structure according to claim 1, characterized in that, There is a movable gap between the inner peripheral wall of the washer (3) and the outer peripheral wall of the screw (1).

8. A vehicle, comprising a body and doors, characterized in that, It also includes a bolt structure as described in any one of claims 1-7, wherein the door is mounted on the vehicle body via the bolt structure.

9. A vehicle according to claim 8, characterized in that, It also includes a door hinge (9), which includes a male hinge (10) and a female hinge (11), which are rotatably connected; the female hinge (11) is fixed to the vehicle body, and the male hinge (10) is fixed to the door by the bolt structure.

10. A vehicle according to claim 9, characterized in that, The female hinge (11) is fixed to the vehicle body by the bolt structure.

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