Door opening structure and vehicle

Abstract

The door opening structure comprises a vehicle body side wall, a doorsill beam, a doorsill lap joint plate and a lower door frame strip, a door opening is formed in the vehicle body side wall, the doorsill beam is located on the lower edge of the door opening and located on the inner side of the vehicle body side wall, and the doorsill lap joint plate is connected to the upper portion of the doorsill beam. The inner side edge of the doorsill lap joint plate is in lap joint above an in-vehicle floor, the outer side edge of the doorsill lap joint plate is connected with a vehicle body side wall, and the lower door frame strip is connected to the inner side of the vehicle door inner plate and used for abutting against the doorsill lap joint plate for sealing. According to the door opening structure provided by the utility model, the doorsill lapping plate above the doorsill beam is mutually lapped with the floor in the vehicle, so that the top of the doorsill lapping plate is flush with the floor in the vehicle at the same height, and the doorsill lapping plate is positioned above the outside of the doorsill beam to shield the doorsill beam, so that passengers can get on and get off the vehicle conveniently; the blocking feeling formed by sinking of the space in the bus is avoided, the convenience of passengers getting on and off the bus is improved, and better riding experience is provided for the passengers.

Description

Technical Field

[0001] The utility model belongs to the technical field of door opening structures, and more specifically, relates to a door opening structure and a vehicle. Background Art

[0002] At the bottom of the door opening of an existing vehicle, a door sill beam is provided. Generally, a plate is wrapped around the outer periphery of an aluminum profile to form a sill beam structure. Since a door frame strip at the bottom of the door opening needs to be installed on the sill beam, an upwardly convex lower stop flange structure is formed on the upper part of the sill beam, and the door frame strip is clamped on the lower stop flange to ensure the sealing performance inside the vehicle.

[0003] The setting of the above-mentioned lower stop flange structure makes the upper part of the sill beam higher than the height of the vehicle interior floor, and further causes the vehicle interior floor to form a sunken effect. When passengers get on and off the vehicle, they need to step over the lower stop flange to step on the vehicle interior floor, and there is a sense of falling when entering the vehicle. This structure seriously affects the convenience of passengers getting on and off the vehicle and brings unnecessary trouble to passengers getting on and off the vehicle. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a door opening structure and a vehicle, which make the sill position flush with the vehicle interior floor and improve the convenience of passengers getting on and off the vehicle.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: to provide a door opening structure, including a vehicle body side wall, a sill beam, a sill lap plate, and a lower door frame strip. A door opening is provided on the vehicle body side wall. The sill beam is located at the lower edge of the door opening and inside the vehicle body side wall. The sill lap plate is connected above the sill beam. The inner edge of the sill lap plate laps above the vehicle interior floor, and the outer edge is connected to the vehicle body side wall. The lower door frame strip is connected to the inner side of the vehicle door inner panel and is used to abut and seal with the sill lap plate.

[0006] In a possible implementation manner, a door opening flange that bends toward the central axis side of the vehicle body is provided on the vehicle body side wall. The lower part of the door opening flange has a lower flange that supports the outer lower part of the sill lap plate, and the lower flange is connected to the outer side wall of the sill beam.

[0007] In some embodiments, an extension plate that extends toward the center of the door opening is further provided on the door opening flange. An upper door frame strip is provided on the extension plate. The upper door frame strip is located on the outer periphery of the upper part of the door opening and is used to abut and seal with the vehicle door inner panel;

[0008] When the vehicle door is in a closed state, the two ends of the upper door frame strip and the two ends of the lower door frame strip are correspondingly connected one by one to form an annular structure surrounding the outer periphery of the door opening.

[0009] In a possible implementation, an upwardly convex platform extending in the front-rear direction is provided on the sill beam. The convex platform is disposed close to the vehicle body central axis side and is supported below the edge of the vehicle interior floor. The sill overlap plate is located above and outside the convex platform and extends towards the vehicle body central axis side to overlap above the vehicle interior floor.

[0010] In some embodiments, the sill overlap plate includes a connecting portion, a lifting portion, and a lapping portion. The connecting portion is connected above the downwardly turned edge. The lifting portion is connected to the side of the connecting portion close to the vehicle body central axis and extends upward along the side wall of the convex platform. The lapping portion is connected to the upper edge of the lifting portion and is located above the convex platform. The lapping portion is used to overlap above the vehicle interior floor.

[0011] In some embodiments, anti-slip grooves that are recessed downward and extend in the front-rear direction are respectively provided on the top surfaces of the connecting portion and the lapping portion. The bottom of the anti-slip groove extends arcuately towards the inner or outer side of the vehicle body.

[0012] In some embodiments, a downwardly convex strip is provided at the bottom of the lapping portion. The lower edge of the convex strip is connected to the top surface of the convex platform. An indicator light is provided on the convex platform, and a light-emitting hole corresponding to the indicator light up and down is provided in the middle of the lapping portion.

[0013] In a possible implementation, the door opening includes a front door opening and a rear door opening. The included angle between the rear side edge and the lower edge of the front door opening is α, where 90° ≤ α ≤ 105°. The included angle between the front side edge and the lower edge of the rear door opening is β, where 80° ≤ β ≤ 90°.

[0014] In a possible implementation, a side support plate that is supported below the vehicle interior floor is integrally formed on the side of the sill beam. The side support plate extends along the direction of the sill beam.

[0015] The solution shown in the embodiments of the present application, compared with the prior art, the door opening structure provided by the embodiments of the present application utilizes the sill overlap plate above the sill beam to overlap with the vehicle interior floor, so that the top of the sill overlap plate is flush with the vehicle interior floor. The sill overlap plate is located above and outside the sill beam and forms an occlusion effect on the sill beam. This setting facilitates the getting on and off actions of passengers, avoids the sense of blockage formed by the sinking of the vehicle interior space, improves the convenience of passengers getting on and off, and provides a better riding experience for passengers.

[0016] The present utility model also provides a vehicle, and the vehicle includes a door opening structure. The vehicle realizes effective overlap with the vehicle interior floor by providing a sill overlap plate above the door beam, so that the top of the sill overlap plate is flush with the vehicle interior floor, facilitates the getting on and off actions of passengers, avoids the sense of blockage formed by the sinking of the vehicle interior space, improves the convenience of passengers getting on and off, and provides a better riding experience for passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 Structural schematic diagram of the use state of the door opening structure provided by the embodiment of the present utility model;

[0019] Figure 2 For the embodiment of the present utility model Figure 1 Structural schematic diagram of another angle of the door opening structure in the embodiment (the vehicle door is omitted);

[0020] Figure 3 Left view structural schematic diagram of the door opening structure provided by the embodiment of the present utility model;

[0021] Figure 4 For the embodiment of the present utility model Figure 3 Enlarged partial sectional structural schematic diagram of A-A in the embodiment;

[0022] Figure 5 For the embodiment of the present utility model Figure 4 Structural schematic diagram of another angle of the sill overlap plate in the embodiment;

[0023] Figure 6 For the embodiment of the present utility model Figure 5 Structural schematic diagram of yet another angle of the sill overlap plate in the embodiment;

[0024] Figure 7 For the embodiment of the present utility model Figure 4 Structural schematic diagram of another angle of the sill beam in the embodiment.

[0025] Among them, the reference numerals in the drawings are as follows:

[0026] 1, vehicle body side wall; 11, front door opening; 12, rear door opening; 2, sill beam; 21, upper convex platform; 22, side support plate; 23, indicator light; 3, sill overlap plate; 31, connecting part; 32, lifting part; 33, overlapping part; 34, anti-slip groove; 35, light-emitting hole; 36, lower convex strip; 41, upper door frame strip; 42, lower door frame strip; 5, door opening flange; 51, extension plate; 52, lower flange; 6, vehicle door; 61, inner panel of the vehicle door; 7, vehicle interior floor; 71, installation part. Specific embodiments

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] In the claims, description and above-mentioned drawings of the present utility model, the terms "front" and "rear" are the same as the front and rear directions of the vehicle body, "left" and "right" are the same as the left and right directions of the vehicle body, and "up" and "down" are the same as the up and down directions of the vehicle body; the term "inner" refers to the direction towards the central axis of the vehicle body, and the term "outer" refers to the direction away from the central axis of the vehicle body. Among them, the central axis of the vehicle body is parallel to the front and rear directions of the vehicle body. For the rest of the orientation terms, unless otherwise clearly defined, the use of terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "clockwise", "counterclockwise", "high", "low", etc. to indicate the orientation or position relationship is based on the orientation and position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present utility model.

[0029] Please refer to Figures 1 to 7 , and now the door opening structure and vehicle provided by the present utility model will be described. The door opening structure includes a vehicle body side panel 1, a sill beam 2, a sill overlapping plate 3 and a lower door frame strip 42. A door opening is provided on the vehicle body side panel 1. The sill beam 2 is located at the lower edge of the door opening and inside the vehicle body side panel 1. The sill overlapping plate 3 is connected above the sill beam 2. The inner edge of the sill overlapping plate 3 overlaps above the vehicle interior floor 7, and the outer edge is connected to the vehicle body side panel 1. The lower door frame strip 42 is connected to the inner side of the door inner panel 61 and is used to abut and seal with the sill overlapping plate 3.

[0030] Compared with the prior art, the door opening structure provided in this embodiment utilizes the sill overlapping plate 3 above the sill beam 2 to overlap with the vehicle interior floor 7, so that the top of the sill overlapping plate 3 is flush with the vehicle interior floor 7. The sill overlapping plate 3 is located outside and above the sill beam 2 and forms an occlusion effect on the sill beam 2. This setting facilitates the getting on and off actions of passengers, avoids the sense of blockage caused by the sinking of the interior space of the vehicle, improves the convenience of passengers getting on and off, and provides a better riding experience for passengers.

[0031] In this embodiment, the threshold beam 2 is an integrally formed component, which can be made of metal or other materials. In order to meet the lightweight requirements, an integrally formed aluminum profile structure is adopted. A vehicle door 6 is installed at the door opening, and the threshold lap plate 3 is connected to the top of the threshold beam 2, which can be effectively connected with the interior floor 7 of the vehicle, forming an effect of being at the same height as the interior floor 7 of the vehicle, so as to facilitate passengers to get on and off the vehicle and avoid the feeling of falling caused by the sinking of the interior floor 7 of the vehicle.

[0032] It should be noted that the leveling of the threshold lap plate 3 and the interior floor 7 means that the heights of the two are similar, not absolutely the same. There can be a height difference of 5-10 mm between the two, so that passengers do not feel a significant height difference, which is different from the original sunken structure of the interior floor 7. For ease of description, the following description assumes that the threshold lap plate 3 is level with the interior panel.

[0033] In addition, the above-mentioned vehicle interior floor 7 refers to the space in front of the seat for placing the legs. For the installation of the front seat or the rear seat, an upwardly protruding installation portion 71 can be provided on the floor body as needed. The height of this position is below the seat and has no effect on passengers getting on and off the vehicle.

[0034] Furthermore, if a carpet is laid on the vehicle interior floor 7, the door sill overlap plate 3 is overlapped on the upper side edge of the carpet to achieve effective connection with the carpet and avoid potential safety hazards caused by the raised edge of the carpet.

[0035] In this embodiment, the vehicle door 6 is formed by splicing the vehicle door inner panel 61 and the vehicle door outer panel from the inside and outside. The sealing structure (lower door frame strip 42) at the lower part of the door opening is separately arranged on the vehicle door inner panel 61, avoiding the traditional ring-shaped closed sealing strip structure, and eliminating the cumbersomeness of setting the lower stopper in the door threshold area. The lower door frame strip 42 mainly seals the door threshold position, and can achieve waterproof, dustproof, soundproof and other protective effects. The lower door frame strip 42 is connected to the inner side wall of the vehicle door inner panel 61, and can form an abutment effect with the outer wall of the door frame overlap plate, thereby forming a sealing effect, effectively preventing water and dust from entering the vehicle, and keeping the vehicle clean.

[0036] At the same time, the lower door frame strip 42 also helps to reduce the introduction of external noise, improve driving comfort, and also has a shock-absorbing effect, protecting the vehicle body from damage to a certain extent, while improving the comfort of passengers.

[0037] In a possible implementation, the above-mentioned characteristic vehicle body side 1 is adopted as follows Figures 1 to 4 See the structure shown. Figures 1 to 4 The body side 1 is provided with a door opening flange 5 bent toward the central axis side of the body, and the lower part of the door opening flange 5 has a lower flange 52 supported on the outer lower part of the door sill lap plate 3, and the lower flange 52 is connected to the outer side wall of the door sill beam 2.

[0038] In this embodiment, the flanging 5 of the door opening is integrally formed with the vehicle body side wall 1 and bent inwardly toward the inside of the door opening to form a closed ring in the circumferential direction of the door opening. The lower flanging 52 located at the lower part can cover the outer upper part of the sill beam 2 to form an effect of shielding the sill beam 2.

[0039] The inner and outer side edges of the sill overlap plate 3 are respectively overlapped with the vehicle interior floor 7 and the lower flanging 52, effectively connecting the two and improving the integrity of the structure. The height of the sill overlap plate 3 is flush with the vehicle interior floor 7 or has a small height difference, so that when passengers get on the vehicle, they feel as if they are stepping onto a flat area, resulting in good comfort.

[0040] Specifically, the sill overlap plate 3 can be provided with an inclined surface that slopes outward and downward, or can extend outward and downward in a stepped form to achieve the effect of being lower on the outside and higher on the inside, facilitating the getting on and off actions of passengers. The lower door frame strip 42 is separately provided on the inner side wall of the door inner panel 61 and can form an abutting and sealing function with the sill overlap plate 3.

[0041] In some embodiments, the above-mentioned feature, the flanging 5 of the door opening, adopts the structure as Figures 1 to 2 shown. Refer to Figures 1 to 2 , an extension plate 51 extending toward the center of the door opening is further provided on the flanging 5 of the door opening. An upper door frame strip 41 is provided on the extension plate 51. The upper door frame strip 41 is located on the upper outer periphery of the door opening and is used for abutting and sealing with the door inner panel 61;

[0042] When the door 6 is in the closed state, the two ends of the upper door frame strip 41 and the two ends of the lower door frame strip 42 are correspondingly connected one by one to form a ring structure surrounding the outer periphery of the door opening.

[0043] In this embodiment, the setting of the extension plate 51 can be used for the installation of the upper door frame strip 41. The upper door frame strip 41 surrounds the upper part and both sides of the door opening, surrounding into a structure with an opening downward. The upper door frame strip 41 is provided in the areas on both sides and the upper part of the door opening, and the lower door frame strip 42 on the door inner panel 61 is used for sealing at the position of the lower part of the door opening.

[0044] After the door 6 is closed, the upper door frame strip 41 and the lower sealing strip can enclose into a ring, thereby forming an effect of surrounding the outer periphery of the door opening, having good sealing performance, improving the sealing reliability between the door 6 and the vehicle body, and having good waterproof, dustproof and shock absorption and noise reduction effects.

[0045] In some possible implementation manners, the above-mentioned feature, the sill beam 2, adopts the structure as Figure 4 and Figure 6 shown. Refer to Figure 4 and Figure 6, on the sill beam 2, there is an upwardly convex upper boss 21 that extends in the front-rear direction. The upper boss 21 is arranged close to the vehicle body central axis side and is supported below the edge of the vehicle interior floor 7. The sill overlap plate 3 is located above and outside the upper boss 21 and extends towards the vehicle body central axis side to overlap above the vehicle interior floor 7.

[0046] In this embodiment, in order to facilitate the getting on and off actions of passengers, an effect of being lower on the outer side and higher on the inner side should be formed at the position of the sill beam 2 (the outer side refers to the side away from the vehicle body central axis, and the inner side refers to the side close to the vehicle body central axis). By setting the upper boss 21, the inner side of the sill beam 2 is higher than the outer side, so that the sill overlap plate 3 above the upper boss 21 can form a flush effect with the top surface of the vehicle interior floor 7 in terms of height.

[0047] The sill overlap plate 3 is arranged outside and above the upper boss 21. The sill beam 2 extends upward along the outer side wall of the upper boss 21 to overlap above the vehicle interior floor 7. The outer edge of the sill overlap plate 3 extends outward to overlap above the downward flange 52, achieving an effective connection with the vehicle body side panel 1.

[0048] Furthermore, a carpet is laid above the vehicle interior floor 7. The outer edge of the carpet can extend outward above the upper boss 21, and then the sill overlap plate 3 is used to overlap above the outer edge of the carpet to form an effective connection.

[0049] In some embodiments, the above-mentioned characteristic sill overlap plate 3 adopts the structure as Figures 4 to 6 shown. Refer to Figures 4 to 6 , the sill overlap plate 3 includes a connecting portion 31, a lifting portion 32, and a lapping portion 33. The connecting portion 31 is connected above the downward flange 52. The lifting portion 32 is connected to the side of the connecting portion 31 close to the vehicle body central axis and extends upward along the side wall of the upper boss 21. The lapping portion 33 is connected to the upper edge of the lifting portion 32 and is located above the upper boss 21. The lapping portion 33 is used to lap above the vehicle interior floor 7.

[0050] In this embodiment, the lifting portion 32 is located outside the upper boss 21 and extends upward so that the lapping portion 33 is located above the upper boss 21. The connecting portion 31 outside the lifting portion 32 is connected to the top surface of the downward flange 52. Through the above structure, an effective connection between the vehicle body side panel 1 and the vehicle interior floor 7 can be achieved by the sill overlap plate 3, meeting the setting requirement of being flush between the sill position and the vehicle interior floor 7, and improving the convenience of getting on and off the vehicle.

[0051] In some embodiments, the above-mentioned characteristic connecting portion 31 and lapping portion 33 adopt the structure as Figures 4 to 6 shown. Refer to Figures 4 to 6, on the top surfaces of the connecting portion 31 and the overlapping portion 33, there are anti-slip grooves 34 which are recessed and extend in the front-rear direction. The bottom of the anti-slip groove 34 extends arcuately towards the inner or outer side of the vehicle body. The setting of the anti-slip groove 34 can form an anti-slip effect on the surface of the sill overlapping portion 33, and even when passengers step on both the overlapping portion 33 and the vehicle interior floor 7 simultaneously, their feet will not slip in position, improving the safety of passengers getting on the vehicle.

[0052] In some embodiments, the above-mentioned overlapping portion 33 of the feature adopts structures such as Figure 4 and Figure 6 as shown. Refer to Figure 4 and Figure 6 , a downwardly protruding lower rib 36 is provided at the bottom of the overlapping portion 33, and the lower edge of the lower rib 36 is connected to the top surface of the upper boss 21; an indicator light 23 is provided on the upper boss 21, and a light-emitting hole 35 corresponding to the indicator light 23 up and down is provided in the middle of the overlapping portion 33.

[0053] In this embodiment, there is a carpet on the vehicle interior floor 7. In order to leave a certain installation space for the carpet, a lower rib 36 is provided at the bottom of the overlapping portion 33. The lower rib 36 is supported above the upper boss 21, forming a certain gap between the overlapping portion 33 and the upper boss 21, meeting the installation requirements of the carpet. After installation, the edge of the carpet is located on the side of the lower rib 36 close to the vehicle body central axis and has no contact with the lower rib 36.

[0054] Specifically, the lower rib 36 extends in the front-rear direction. It can adopt a structure with continuous extension or a structure with spaced arrangement in the front-rear direction, both of which can achieve a good supporting effect.

[0055] On this basis, an indicator light 23 for indicating illumination is provided on the sill beam 2, and a light-emitting hole 35 for the light of the indicator light 23 to be exposed is provided on the overlapping portion 33. A reinforcing strip is also provided at the edge position of the light-emitting hole 35, which on the one hand improves the structural strength of the light-emitting hole 35 area, and at the same time improves the structural aesthetics of the indicator light 23 position.

[0056] In some possible implementation manners, the above-mentioned door opening adopts structures such as Figures 1 to 2 as shown. Refer to Figures 1 to 2 , the door opening includes a front door opening 11 and a rear door opening 12. The included angle between the rear side edge and the lower edge of the front door opening 11 is α, 90° ≤ α ≤ 105°, and the included angle between the front side edge and the lower edge of the rear door opening 12 is β, 80° ≤ β ≤ 90°.

[0057] In this embodiment, by limiting the angle between the rear edge and the lower edge of the front door opening 11 to be between 90° and 105°, a door opening with an approximately right-angled angle is formed at the rear of the front door, providing a relatively large passage space for the driver and passengers, facilitating the getting-on and getting-off movements of the driver and passengers, and avoiding the influence of the excessive inclination of the rear edge of the door opening on the getting-on and getting-off of the driver and passengers.

[0058] Similarly, the angle between the front edge and the lower edge of the rear door opening 12 is limited to be between 80° and 90°, so that the rear passengers have a larger passage space when getting on and off the vehicle, improving the convenience and comfort of getting on and off the vehicle.

[0059] In some possible implementation manners, the above-mentioned characteristic sill beam 2 adopts the structure as Figures 1 to 2 shown. Refer to Figures 1 to 2 , and a side support plate 22 that supports below the vehicle interior floor 7 is integrally formed on the side of the sill beam 2, and the side support plate 22 extends along the direction of the sill beam 2.

[0060] In this embodiment, by providing the horizontally extending side support plate 22 on the side of the sill beam 2, the edge position of the vehicle interior floor 7 is supported, and at the same time, the side wall of the sill beam 2 is used to form a lateral limit for the vehicle interior floor 7, ensuring the stability of the relative position between the vehicle interior floor 7 and the sill beam 2, improving the position stability of structures such as the upper carpet and the sill lap plate 3, and ensuring the safety of passengers getting on and off the vehicle.

[0061] Based on the same inventive concept, the embodiment of the present application further provides a vehicle, and the vehicle includes a door opening structure. The vehicle effectively laps with the vehicle interior floor 7 by providing a sill lap plate 3 above the door beam, making the top of the sill lap plate 3 flush with the vehicle interior floor 7, facilitating the getting-on and getting-off movements of passengers, avoiding the blocking feeling caused by the sinking of the vehicle interior space, improving the convenience of passengers getting on and off the vehicle, and providing a better riding experience for passengers.

[0062] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Door opening structure, characterized in that: The vehicle comprises a vehicle body side (1), a door sill beam (2), a door sill lap plate (3) and a lower door frame strip (42); the vehicle body side (1) is provided with a door opening; the door sill beam (2) is located at the lower edge of the door opening and at the inner side of the vehicle body side (1); the door sill lap plate (3) is connected to the upper side of the door sill beam (2); the inner edge of the door sill lap plate (3) is overlapped with the upper side of the vehicle interior floor (7) and the outer edge is connected to the vehicle body side (1); the lower door frame strip (42) is connected to the inner side of the vehicle door inner panel (61) and is used for abutting and sealing with the door sill lap plate (3).

2. The door opening structure according to claim 1, characterized in that: The body side surround (1) is provided with a door opening flange (5) bent toward the center axis side of the body, the lower portion of the door opening flange (5) has a lower flange (52) supported on the outer lower side of the door sill lap plate (3), and the lower flange (52) is connected to the outer side wall of the door sill beam (2).

3. The door opening structure according to claim 2, characterized in that: The door opening flange (5) is also provided with an extension plate (51) extending toward the center of the door opening, and the extension plate (51) is provided with an upper door frame strip (41), and the upper door frame strip (41) is located at the upper periphery of the door opening and is used for abutting and sealing with the vehicle door inner panel (61); When the vehicle door is in a closed state, the two ends of the upper door frame strip (41) and the two ends of the lower door frame strip (42) are connected one by one to form an annular structure surrounding the outer periphery of the door opening.

4. The door opening structure according to claim 2, characterized in that: The threshold beam (2) is provided with an upper boss (21) which is protruding upward and extending in the front-rear direction. The upper boss (21) is arranged close to the center axis of the vehicle body and supported below the edge of the vehicle interior floor (7). The threshold lap plate (3) is located above and outside the upper boss (21) and extends toward the center axis of the vehicle body to overlap above the vehicle interior floor (7).

5. The door opening structure according to claim 4, characterized in that: The threshold lap plate (3) comprises a connecting portion (31), a lifting portion (32) and a lap portion (33); the connecting portion (31) is connected to the top of the lower flange (52); the lifting portion (32) is connected to the side of the connecting portion (31) close to the center axis of the vehicle body and extends upward along the side wall of the upper boss (21); the lap portion (33) is connected to the upper edge of the lifting portion (32) and is located above the upper boss (21); the lap portion (33) is used to overlap the top of the vehicle interior floor (7).

6. The door opening structure according to claim 5, characterized in that: The top surfaces of the connecting portion (31) and the overlapping portion (33) are respectively provided with anti-skid grooves (34) which are concavely arranged and extend in the front-rear direction, and the bottom of the anti-skid grooves (34) extends in an arc shape toward the inside or outside of the vehicle body.

7. The door opening structure according to claim 5, characterized in that: A lower convex strip (36) protruding downward is provided at the bottom of the overlap portion (33), and the lower edge of the lower convex strip (36) is connected to the top surface of the upper boss (21); an indicator light (23) is provided on the upper boss (21), and a light outlet hole (35) corresponding to the upper and lower parts of the indicator light (23) is provided in the middle of the overlap portion (33).

8. The door opening structure according to any one of claims 1 to 7, characterized in that: The door opening comprises a front door opening (11) and a rear door opening (12), wherein the angle between the rear side edge and the lower edge of the front door opening (11) is α, 90°≤α≤105°, and the angle between the front side edge and the lower edge of the rear door opening (12) is β, 80°≤β≤90°.

9. The door opening structure according to any one of claims 1 to 7, characterized in that: The side portion of the sill beam (2) is integrally formed with a side support plate (22) supported below the vehicle interior floor (7), and the side support plate (22) extends along the direction of the sill beam (2).

10. A vehicle, characterized in that: The vehicle comprises the door opening structure according to any one of claims 1-9.

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