Hinge protection device, frame assembly and vehicle

Abstract

The invention relates to a hinge protection device, a frame assembly and a vehicle, and the hinge protection device comprises a stop block which is arranged between a hinge of a vehicle door and a tire, and the stop block is used for abutting against the tire to limit the movement of the tire towards the hinge. According to the technical scheme, the safety performance of the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the technical field of hinge protection devices, and in particular to a hinge protection device, a frame assembly and a vehicle. Background Art

[0002] At present, when a vehicle has an offset collision, the tire will usually move upward after being subjected to force, squeezing the upper part of the door, the middle part of the door and the middle part of the body, so that the door sill beam of the lower door of the entire vehicle cannot play the expected role. This will cause the side of the body to be torn off, causing the door assembly to detach, or directly cause the tire to hit the door, causing the hinge to fail, the door to fall off, etc., which will have an adverse impact on the safety of people inside and outside the vehicle. Summary of the invention

[0003] The embodiments of the present application provide a hinge protection device, a frame assembly and a vehicle, which improve the safety performance of the vehicle and at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a hinge protection device is provided, comprising: a block provided between the hinge of the vehicle door and the tire, the block being used to abut against the tire to limit the movement of the tire toward the hinge.

[0005] Optionally, the stopper has a guide portion disposed toward the tire, the guide portion being used to guide the tire to contact the rocker beam during a collision of the vehicle to prevent the tire from squeezing the hinge.

[0006] Optionally, the stopper includes a first connecting portion, and the first connecting portion is used to be connected to the vehicle body and / or the front cabin side beam.

[0007] Optionally, at least one first mounting hole is provided on the first connecting portion, and the first mounting hole is used for the first fixing member to pass through so as to fix the first connecting portion to the vehicle body and / or the front cabin side beam.

[0008] Optionally, the block further includes a second connection portion arranged at an angle to the first connection portion, one end of the second connection portion is connected to one end of the first connection portion, and the second connection portion is used to be connected to the fender mounting bracket.

[0009] Optionally, the second connecting portion includes a first section and a second section connected in sequence, one end of the first section is connected to one end of the first connecting portion, and a thickness of the first section is greater than a thickness of the second section.

[0010] Optionally, at least one second mounting hole is provided on the second mounting hole of the second connecting portion, and the second mounting hole is used for the second fixing member to pass through so as to fix the second connecting portion to the fender mounting bracket.

[0011] Optionally, the stopper further includes a third connecting portion, and two ends of the third connecting portion are respectively connected to the first connecting portion and the second connecting portion.

[0012] Optionally, the third connecting portion includes a third segment and a fourth segment connected in sequence and arranged at an angle, one end of the third segment is connected to the first connecting portion, one end of the fourth segment is connected to the second connecting portion, and the fourth segment is configured as a guide portion.

[0013] Optionally, the angle between the fourth section and the vertical direction is between 25° and 40°.

[0014] Optionally, the thickness of the third section is smaller than the thickness of the first section.

[0015] Optionally, the hinge protection device further includes a reinforcement structure, and the first connecting portion, the first section, the third section and the fourth section are jointly arranged to form a receiving groove, and the reinforcement structure is located in the receiving groove.

[0016] Optionally, it is characterized in that there is a gap between the first connecting portion and the base of the hinge, and the gap is between 5mm-10mm.

[0017] Optionally, a protrusion is further provided on the stopper, and the stopper is engaged and connected with the side wall of the vehicle body via the protrusion.

[0018] According to a second aspect of the present application, a vehicle frame assembly is provided, comprising the above-mentioned hinge protection device.

[0019] According to a third aspect of the present application, a vehicle is also provided, comprising the frame assembly as described above.

[0020] The hinge protection device of the embodiment of the present application includes: a block, which is arranged between the hinge of the door and the tire, and is used to abut against the tire to limit the movement of the tire toward the hinge. Through the above technical solution, the block is used to connect with the vehicle body, the front cabin side beam, and the fender mounting bracket, which indirectly strengthens the connection strength between the front cabin side beam and the vehicle body, thereby enhancing the force transmission capacity of the upper force transmission path of the vehicle. During a collision, the block can prevent the door hinge from being directly squeezed by the tire and failing, causing the door to fall off, thereby improving the safety performance of the vehicle.

[0021] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0023] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0024] Figure 1 is a schematic diagram of the overall structure of a hinge protection device provided in an exemplary embodiment of the present disclosure;

[0025] Figure 2 is a schematic side view of a hinge protection device provided in an exemplary embodiment of the present disclosure;

[0026] Figure 3 is a rear view schematic diagram of a hinge protection device provided in an exemplary embodiment of the present disclosure;

[0027] Figure 4 is an oblique schematic diagram of a hinge protection device provided in an exemplary embodiment of the present disclosure;

[0028] Figure 5 is a side schematic diagram of a vehicle provided in an exemplary embodiment of the present disclosure;

[0029] Figure 6 is a side schematic diagram of a vehicle provided in an exemplary embodiment of the present disclosure;

[0030] Figure 7 is a schematic oblique view of a vehicle provided in an exemplary embodiment of the present disclosure;

[0031] Figure 8 is a schematic oblique view of a vehicle provided in an exemplary embodiment of the present disclosure;

[0032] Fig. 9 is a front view schematic diagram of a vehicle provided in an exemplary embodiment of the present disclosure;

[0033] Fig.10 Schematic diagram of the structure of the hinge and the stopper provided in the exemplary embodiment of the present disclosure.

[0034] Description of reference numerals:

[0035] Hinge protection device 1, block 10, first connecting part 11, first mounting hole 12, second connecting part 13, first section 131, second section 132, second mounting hole 14, third connecting part 15, third section 151, fourth section 152, hinge 20, tire 30, vehicle body 40, front cabin side beam 50, reinforcement structure 70, raised part 80, vehicle door 90, and threshold beam 100. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0037] like Figures 1 to 10 As shown, in order to achieve the above-mentioned purpose, according to the first aspect of the present application, a hinge protection device 1 is provided, comprising: a block 10, arranged between the hinge 20 of the vehicle door and the tire 30, the block 10 is used to abut against the tire 30 to limit the movement of the tire 30 toward the hinge 20.

[0038] The hinge protection device 1 of the embodiment of the present application includes: a block 10, which is arranged between the hinge 20 of the door 90 and the tire 30. The block 10 is used to connect with the vehicle body 40, the front cabin side beam 50, and the fender mounting bracket. The block 10 is used to prevent the tire 30 from squeezing the hinge 20. Through the above technical solution, the block 10 is used to connect with the vehicle body 40, the front cabin side beam 50, and the fender mounting bracket, which indirectly strengthens the connection strength between the front cabin side beam 50 and the vehicle body 40, thereby enhancing the force transmission capacity of the upper force transmission path of the whole vehicle. During the collision process, the block 10 can prevent the hinge 20 of the door 90 from being directly squeezed by the tire 30 and failing, causing the door 90 to fall off, thereby improving the safety performance of the vehicle.

[0039] In the present application, the hinge 20 consists of a base and a hinge. The base is fixed to the vehicle body 40 by 6 M11 bolts, the hinge is connected to the door 90 by 5 M13 bolts, the base and the hinge are connected by a connecting rod, and the front end of the door 90 is connected to the vehicle body 40 by the hinge 20.

[0040] In the present application, the block 10 is connected to surrounding components by bolts, thus avoiding adverse effects of complex processes such as welding on the mechanical properties of surrounding components.

[0041] At the same time, the material of the block 10 is AlSi10MnMg alloy, which has a low density and excellent comprehensive mechanical properties. While achieving lightweighting of the block 10 body, it can meet the collision performance of the whole vehicle and the connectability with the surrounding overlapping parts. The density of the AlSi10MnMg alloy is low, which enables the block 10 to significantly reduce weight while maintaining sufficient strength and performance. Lightweighting is one of the important trends in modern automobile design. By reducing the weight of the vehicle, fuel consumption can be reduced, emissions can be reduced, and the fuel economy and environmental performance of the vehicle can be improved. At the same time, lightweighting also helps to improve the acceleration performance and handling of the vehicle, bringing a more pleasant driving experience to the driver. The AlSi10MnMg alloy has excellent comprehensive mechanical properties, including high strength, good toughness and wear resistance. These properties enable the block 10 to maintain sufficient stability and load-bearing capacity when subjected to extreme mechanical conditions such as vehicle collisions. In addition, the alloy also has good corrosion resistance and can maintain a long service life under harsh environmental conditions.

[0042] The stopper 10 is formed by die casting, and the product quality is stable, which is suitable for large-scale batch production. The die casting process can produce the stopper 10 with high dimensional accuracy and good surface quality. Since the molten metal fills the mold cavity under high pressure and high speed, and solidifies and crystallizes under pressure, the die casting has a fine grain structure and a solid surface, which improves the strength and hardness of the stopper 10. This high-precision and high-quality feature enables the stopper 10 to better meet the vehicle's precise requirements for parts and ensure the overall performance and safety of the vehicle.

[0043] Optionally, the block 10 has a guide portion disposed toward the tire 30, and the guide portion is used to guide the tire 30 to contact the threshold beam 100 during the collision of the vehicle to prevent the tire 30 from squeezing the hinge 20. In this way, the block 10 induces the tire 30 to collide with the threshold beam 100 through the guide portion, and also avoids the situation where the hinge 20 is directly squeezed by the tire 30 and fails, resulting in the door 90 falling off. The design of the guide portion can ensure that when the vehicle collides, the tire 30 can contact the threshold beam 100 according to a predetermined path. In this way, the impact force of the tire 30 will be effectively absorbed by the threshold beam 100, thereby avoiding the tire 30 from directly squeezing the hinge 20 and other vulnerable parts. This design can significantly reduce the risk of damage to the hinge 20 and protect the integrity of the vehicle structure. By guiding the tire 30 to contact the threshold beam 100, the design of the block 10 can reduce the impact of the collision on the interior space of the vehicle. When a collision occurs, the impact on the passengers and the driver will be effectively alleviated, thereby improving the overall safety of the vehicle.

[0044] In addition, this design can prevent the tire 30 from rolling or popping out due to loss of control, further reducing the damage to the occupants caused by the accident. The design of the guide portion helps to better manage the energy during the collision. When the tire 30 contacts the rocker beam 100, the collision energy will be dispersed into the structure of the vehicle instead of being concentrated on a fragile component. This energy dispersion method can reduce the damage to the vehicle while improving the vehicle's crashworthiness. Although the guide portion of the block 10 mainly plays a role during the collision, its design also indirectly improves the vehicle's handling. By ensuring that the tire 30 can remain stable during a collision, the block 10 helps maintain the vehicle's driving trajectory, allowing the driver to better control the vehicle in an emergency.

[0045] The design of the stopper 10 is generally considered to be easy to repair and replace. After a collision, if the stopper 10 is damaged, it can be replaced relatively easily without the need to overhaul the entire vehicle structure. This reduces repair costs and shortens repair time.

[0046] Optionally, the block 10 includes a first connection portion 11, which is used to connect with the vehicle body 40 and / or the front cabin side beam 50. The first connection portion 11 forms a more stable structural system by connecting with the vehicle body 40 and the front cabin side beam 50. This connection method can significantly improve the bearing capacity of the block 10, ensuring that the block 10 can remain stable and not easily deformed or fall off when the vehicle is traveling or collides. During a collision, the first connection portion 11 can disperse the impact force to the vehicle body 40 and the front cabin side beam 50, thereby reducing the force strength of a single component and improving the crashworthiness of the entire vehicle structure. Absorbing collision energy: The connection points of the first connection portion 11 with the vehicle body 40 and the front cabin side beam 50 are usually designed as structures that can absorb collision energy. When a collision occurs, these connection points can undergo a certain deformation, thereby absorbing part of the collision energy and reducing damage to passengers and drivers.

[0047] By properly designing the position and angle of the first connection portion 11, the energy transfer path during a collision can be guided so that components such as the tire 30 can contact structures such as the door sill beam 100 according to a predetermined path, thereby more effectively dispersing and absorbing the collision energy. The first connection portion 11 helps maintain the stability of the vehicle during driving by connecting the vehicle body 40 and the front cabin side beam 50. In particular, in situations such as high-speed driving or sharp turns, the block 10 and its first connection portion 11 can prevent the vehicle body 40 from excessively tilting or rolling over, thereby improving the handling and safety of the vehicle.

[0048] Optionally, at least one first mounting hole 12 is provided on the first connecting portion 11, and the first mounting hole 12 is used for a fixing member to pass through so as to fix the first connecting portion 11 to the vehicle body 40 and / or the front cabin side beam 50. In the present application, the upper end of the stopper 10 near the vehicle body 40 is connected to the vehicle body 40 and the front cabin side beam 50 through two M12 bolts and bolt sleeves, and the left end of the stopper 10 near the vehicle body 40 is connected to the vehicle body 40 through two M10 bolts. The upper end of the stopper 10 near the vehicle body 40 is connected to the vehicle body 40 and the front cabin side beam 50 through two M12 bolts and bolt sleeves. This multiple connection design further enhances the strength and reliability of the connection parts. Even in extreme cases, such as collisions or severe bumps, the connection parts can be effectively prevented from loosening or falling off.

[0049] M12 and M10 bolts have wide applicability and versatility. Therefore, during the installation and removal of the block 10, standardized tools and equipment can be used to improve the convenience and efficiency of installation and removal. The standardized bolt specifications also make it easier to inspect and maintain the connection parts of the block 10. By regularly checking the tightening state and wear of the bolts, potential safety hazards can be discovered and repaired in a timely manner to ensure the safety and reliability of the vehicle. The block 10 is tightly connected to the vehicle body 40 and the front cabin side beam 50 by bolts to form an integral structure.

[0050] During a collision, the block 10 can quickly transfer the collision energy to the vehicle body 40 and the front cabin side beam 50, thereby reducing damage to passengers and the driver. The connection between the block 10 and the vehicle body 40 and the front cabin side beam 50 enhances the overall rigidity of the vehicle body 40 and improves the stability and handling of the vehicle during driving. Especially in situations such as high-speed driving or sharp turns, the block 10 can prevent the vehicle body 40 from excessive deformation or instability, ensuring the driving safety of the vehicle. Application of bolts of different specifications: The block 10 is connected to the upper end and the left end of the vehicle body 40 with bolts of M12 and M10 respectively. This design can be flexibly selected according to the stress conditions and installation requirements of different parts.

[0051] Optionally, the block 10 also includes a second connection portion 13 that is arranged at an angle to the first connection portion 11, one end of the second connection portion 13 is connected to one end of the first connection portion 11, and the second connection portion 13 is used to connect to the fender mounting bracket. The addition of the second connection portion 13 increases the number of connection points between the block 10 and the vehicle body 40, thereby enhancing the overall connectivity of the structure. This multi-point fixing method can effectively improve the stability and load-bearing capacity of the block 10, ensuring that the block 10 is not easy to loosen or fall off during vehicle driving. In extreme cases such as collisions, the second connection portion 13 can share the force of the first connection portion 11, reduce the load on a single connection portion, and thus extend the service life of the entire structure.

[0052] Optionally, the second connection portion 13 includes a first section 131 and a second section 132 connected in sequence, one end of the first section 131 is connected to one end of the first connection portion 11, and the thickness of the first section 131 is greater than the thickness of the second section 132. In the present application, the second section 132 is specifically a failure induction feature, and when the second section 132 is hit, it fails immediately, so that the collision direction can be smoothly induced by the guide part, so as to improve the guiding efficiency of the guide part.

[0053] Optionally, at least one second mounting hole 14 is provided on the second mounting hole 14 of the second connecting portion 13, and the second mounting hole 14 is used for a fixing member to pass through so as to fix the second connecting portion 13 to the fender mounting bracket. The lower end of the stopper 10 is connected to the fender mounting bracket along the horizontal plane away from the vehicle body 40 through an M11 bolt, and the upper end of the stopper 10 close to the vehicle body 40 is connected to the vehicle body 40 and the front cabin side beam 50 through two M12 bolts and bolt sleeves. This multiple connection design further enhances the strength and reliability of the connection parts. Even in extreme cases, such as collisions or severe bumps, the connection parts can be effectively prevented from loosening or falling off.

[0054] Optionally, the stopper 10 further includes a third connecting portion 15, and two ends of the third connecting portion 15 are respectively connected to the first connecting portion 11 and the second connecting portion 13. This arrangement can improve the overall connection strength of the stopper 10 to extend its service life.

[0055] Optionally, the third connection portion 15 includes a third segment 151 and a fourth segment 152 which are connected in sequence and arranged at an angle, one end of the third segment 151 is connected to the first connection portion 11, one end of the fourth segment 152 is connected to the second connection portion 13, and the fourth segment 152 is configured as a guide portion.

[0056] Optionally, the angle between the fourth section 152 and the vertical direction is α, and α is between 25° and 40°. The design mainly considers that the height of the stopper 10 is greater than the distance between the highest point of the hinge 20 (including the base and the hinge and the connecting rod therebetween) and the vehicle body 40, ensuring that the collision direction can be guided outside the hinge 20; in order to prevent the stopper 10 from failing at the installation point with the front cabin side beam 50 and the vehicle body 40 during the collision.

[0057] Optionally, the thickness of the third section 151 is less than the thickness of the first section 131. By setting the above structure, it is ensured that the strength of the stopper 10 is sufficient to guide the collision direction to the outside of the hinge 20, and the lightweight design of the stopper 10 is reflected.

[0058] Optionally, the hinge protection device 1 further includes a reinforcing structure 70, the first connecting portion 11, the first section 131, the third section 151 and the fourth section 152 are collectively arranged to form a receiving groove, and the reinforcing structure 70 is located in the receiving groove. This arrangement can improve the strength of the block 10 as much as possible to meet the use requirements of the vehicle.

[0059] Optionally, it is characterized in that there is a gap between the first connecting portion 11 and the base of the hinge 20, and the gap is L, which is between 5mm and 10mm. Through this gap, it can be ensured that the stopper 10 can effectively buffer the collision force transmitted to the hinge 20, thereby protecting the structure of the hinge 20.

[0060] Optionally, a protrusion 80 is further provided on the stopper 10, and the stopper 10 is connected with the side of the vehicle body 40 by the protrusion 80. The stopper 10 is nested with the side of the vehicle body 40 by the protrusion 80 to strengthen the overall structural strength, so as to ensure the stability of the vehicle in use.

[0061] According to a second aspect of the present application, a vehicle frame assembly is provided, comprising the hinge protection device 1 described above.

[0062] According to a third aspect of the present application, a vehicle is also provided, comprising the frame assembly as described above.

[0063] The hinge protection device 1 of the embodiment of the present application includes: a block 10, which is arranged between the hinge 20 of the door 90 and the tire 30. The block 10 is used to connect with the vehicle body 40, the front cabin side beam 50, and the fender mounting bracket. The block 10 is used to prevent the tire 30 from squeezing the hinge 20. Through the above technical solution, the block 10 is used to connect with the vehicle body 40, the front cabin side beam 50, and the fender mounting bracket, which indirectly strengthens the connection strength between the front cabin side beam 50 and the vehicle body 40, thereby enhancing the force transmission capacity of the upper force transmission path of the whole vehicle. During the collision process, the block 10 can prevent the hinge 20 of the door 90 from being directly squeezed by the tire 30 and failing, causing the door 90 to fall off, thereby improving the safety performance of the vehicle.

[0064] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0065] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0066] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0067] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0068] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0069] The above description is only the preferred 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 modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hinge protection device, characterized in that: include: The stopper is arranged between the hinge of the vehicle door and the tire, and the stopper is used to abut against the tire to limit the movement of the tire toward the hinge.

2. The hinge protection device according to claim 1, characterized in that: The stopper has a guide portion disposed toward the tire, and the guide portion is used to guide the tire to contact the rocker beam during a collision of the vehicle to prevent the tire from pressing the hinge.

3. The hinge protection device according to claim 2, characterized in that: The stopper comprises a first connecting portion, and the first connecting portion is used to be connected to the vehicle body and / or the front cabin side beam.

4. The hinge protection device according to claim 3, characterized in that: The first connecting portion is provided with at least one first mounting hole, and the first mounting hole is used for a first fixing member to pass through so as to fix the first connecting portion to the vehicle body and / or the front cabin side beam.

5. The hinge protection device according to claim 3, characterized in that: The stopper also includes a second connection portion arranged at an angle to the first connection portion, one end of the second connection portion is connected to one end of the first connection portion, and the second connection portion is used to be connected to the fender mounting bracket.

6. The hinge protection device according to claim 5, characterized in that: The second connecting portion includes a first section and a second section connected in sequence, one end of the first section is connected to one end of the first connecting portion, and a thickness of the first section is greater than a thickness of the second section.

7. The hinge protection device according to claim 5, characterized in that: At least one second mounting hole is provided on the second mounting hole of the second connecting portion, and the second mounting hole is used for a second fixing member to pass through so as to fix the second connecting portion to the fender mounting bracket.

8. The hinge protection device according to claim 5, characterized in that: The stopper further includes a third connecting portion, and two ends of the third connecting portion are respectively connected to the first connecting portion and the second connecting portion.

9. The hinge protection device according to claim 8, characterized in that: The third connection portion includes a third section and a fourth section which are connected in sequence and arranged at an angle, one end of the third section is connected to the first connection portion, one end of the fourth section is connected to the second connection portion, and the fourth section is configured as the guide portion.

10. The hinge protection device according to claim 9, characterized in that: The angle between the fourth section and the vertical direction is between 25° and 40°.

11. The hinge protection device according to claim 8, characterized in that: The thickness of the third section is smaller than the thickness of the first section.

12. The hinge protection device according to claim 9, characterized in that: The hinge protection device further includes a reinforcement structure, the first connecting portion, the first section, the third section and the fourth section are jointly arranged to form a receiving groove, and the reinforcement structure is located in the receiving groove.

13. The hinge protection device according to any one of claims 3 to 12, characterized in that: There is a gap between the first connecting portion and the base of the hinge, and the gap is between 5mm and 10mm.

14. The hinge protection device according to any one of claims 1 to 12, characterized in that: The stopper is also provided with a protrusion, and the stopper is engaged and connected with the side wall of the vehicle body through the protrusion.

15. A vehicle frame assembly, characterized in that: The hinge protection device comprises the hinge protection device according to any one of claims 1 to 14.

16. A vehicle, characterized in that: Comprising the frame assembly as claimed in claim 15.

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