Vehicle door structure and automobile comprising same

Abstract

A vehicle door structure and an automobile comprising same. The vehicle door structure comprises a vehicle door inner panel (100), a mounting reinforcing plate (300), and a safety belt assembly (400). The vehicle door inner panel is connected to the mounting reinforcing plate; and the safety belt assembly comprises a belt body (410), a winding device (420), and a mounting member (500). The winding device is located on the side of the vehicle door inner panel facing away from the mounting reinforcing plate and is used for winding the belt body; and the mounting member is used for fixing the winding device, the vehicle door inner panel, and the mounting reinforcing plate together. The vehicle comprises a vehicle body and a vehicle door structure disposed on the vehicle body. The vehicle door structure improves the fixing strength of the winding device fixed to the vehicle door inner panel.

Description

Door structure and automobile thereof

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on February 5, 2024, with application number 202420276988.3 and application name “Vehicle Door Structure and Vehicle Thereof”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to, but is not limited to, the technical field of automobile safety accessories, and in particular to a vehicle door structure and a vehicle thereof. Background Art

[0003] Seat belts are basic protective devices that protect drivers and passengers during a car collision. A B-pillarless body has the B-pillars removed on both sides of the body. The front doors and rear doors open in opposite directions, forming a larger entry and exit passage between the front and rear doors after opening, making it easier for users to get on and off the vehicle. It also does not block the space inside the vehicle, which is conducive to improving the user experience.

[0004] In the related art, some B-pillar-less cars include a door inner panel and a door interior panel. The door interior panel is arranged on the surface of the door inner panel facing the interior of the vehicle. One end of the seat belt has a retractor for rewinding the seat belt. When fixing the retractor, the retractor is separately fixed to the door inner panel by bolts. However, only the door inner panel is used to fix the retractor, which reduces the fixing strength of the retractor to the door inner panel. Summary of the Invention

[0005] The following is a brief summary of subject matter that is described in detail herein. This summary is not intended to be liming as to the scope of the claims.

[0006] The present application provides a vehicle door structure and a vehicle thereof.

[0007] In one aspect, the present application provides a vehicle door structure, comprising a vehicle door inner panel, a mounting reinforcement plate, and a seat belt assembly, wherein the vehicle door inner panel is connected to the mounting reinforcement plate, and the seat belt assembly comprises a belt body, a retractor, and a mounting member;

[0008] The retractor is used to retract the belt body. The retractor is located on a side of the door inner panel away from the installation reinforcement plate. The mounting member is used to fix the retractor, the door inner panel and the installation reinforcement plate together.

[0009] In some embodiments, the mounting member includes a mounting plate, a mounting rod and an anti-slip portion, the retractor is fixedly arranged on the mounting plate, the mounting rod is fixedly arranged on the mounting plate, and the mounting rod is used to pass through the door inner panel and the mounting reinforcement plate at the same time, the anti-slip portion is detachably connected to the mounting rod, and the anti-slip portion is used to prevent the mounting rod from detaching from the door inner panel and the mounting reinforcement plate.

[0010] In some embodiments, the mounting rod is configured as a screw rod, and the anti-slip portion includes a mounting nut that is sleeved and threadedly connected to the screw rod.

[0011] In some embodiments, a door interior panel is also included, which is connected between the door interior panel and the mounting reinforcement plate. A water-retaining film is provided on the surface of the door interior panel facing the door interior panel, and the retractor is provided between the water-retaining film and the door interior panel.

[0012] In some embodiments, a guide assembly is further included, wherein the guide assembly includes a guide ring, the guide ring is disposed on the inner door panel, and the guide ring is used for the belt body to pass through.

[0013] In some embodiments, a fixed reinforcement plate and a fixing member are further included. The fixed reinforcement plate is located on the side of the door inner panel facing the installation reinforcement plate. The fixing member is used to fix the guide ring to the door inner panel and the fixed reinforcement plate at the same time.

[0014] In some embodiments, the fixed reinforcement plate includes a first reinforcement plate and a second reinforcement plate, and the first reinforcement plate and the second reinforcement plate are sequentially arranged in a direction away from the inner panel of the vehicle door.

[0015] In some embodiments, the fixing member includes a fixing bolt and a fixing nut, the fixing bolt is used to simultaneously pass through the guide ring, the door inner panel, the first reinforcement plate and the second reinforcement plate, and the fixing nut is sleeved and threadedly connected to the fixing bolt.

[0016] In some embodiments, a fixing assembly is also included, which includes a first plate, a second plate and a connecting piece. The first plate and the second plate are both located on the side of the vehicle door inner panel away from the installation reinforcement plate. The first plate is fixedly arranged on the vehicle door inner panel, and the second plate is provided with a fixing port for fixing the belt body. The connecting piece is used to detachably connect the second plate to the first plate.

[0017] In some embodiments, the first plate body includes a U-shaped plate and flanges arranged on both side edges of the U-shaped plate, the notch of the U-shaped plate is arranged toward the door inner panel, and the flanges are fixed to the door inner panel.

[0018] In some embodiments, the connecting member includes a connecting bolt and a connecting nut, the rod of the connecting bolt is simultaneously passed through the second plate body and the U-shaped plate, and the connecting nut is sleeved and threadedly connected to the connecting bolt.

[0019] In some embodiments, the retractor is provided with an opening for the belt to pass through, and the opening is arranged toward the interior of the vehicle.

[0020] In some embodiments, the belt body is a double-layer arrangement.

[0021] On the other hand, the present application provides a car, comprising a car body and the door structure arranged on the car body.

[0022] The present application provides a vehicle door structure and a vehicle thereof. The vehicle door structure provided by the present application fixes a retractor, a door inner panel and a mounting reinforcement plate together through a mounting piece. Compared with fixing the retractor alone to the door inner panel, the door inner panel and the mounting reinforcement plate improve the fixing strength of the retractor, thereby indirectly improving the reeling effect of the belt body in the retractor, preventing the retractor from pulling the door inner panel and causing deformation of the door inner panel; by arranging the belt body of a vehicle without a B-pillar on the door, the two ends of the belt body do not need to be fixed to the seats inside the vehicle, there is no need to set components for fixing the belt body on the seats, and there is no need to enhance the skeleton strength of the seat, thereby reducing the production cost of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following drawings are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] FIG1 is a schematic structural diagram of a vehicle door structure provided by an embodiment of the present application;

[0025] FIG2 is a schematic structural diagram of the hidden door interior panel in FIG1 ;

[0026] FIG3 is an enlarged structural diagram of portion A in FIG2 ;

[0027] FIG4 is a schematic diagram of the cross-sectional structure in the DD direction in FIG3 ;

[0028] FIG5 is an enlarged structural diagram of portion B in FIG2 ;

[0029] FIG6 is a schematic diagram of the cross-sectional structure taken along the EE direction in FIG5 ;

[0030] FIG7 is an enlarged structural diagram of portion C in FIG2 ;

[0031] FIG8 is a schematic diagram of the cross-sectional structure in the FF direction in FIG7 .

[0032] Explanation of the accompanying drawings: 100, door inner panel; 200, door interior trim panel; 300, mounting reinforcement plate; 400, seat belt assembly; 410, belt body; 420, retractor; 430, guide assembly; 431, guide ring; 440, fixing assembly; 441, first plate body; 442, second plate body; 443, connecting member; 444, fixing port; 445, U-shaped plate; 446, flange; 447, connecting bolt; 448, connecting nut; 500, mounting member; 510, mounting plate; 520, mounting rod; 530, anti-slip portion; 600, fixing reinforcement plate; 610, fixing member; 611, fixing bolt; 612, fixing nut; 620, first reinforcement plate; 630, second reinforcement plate.

[0033] Other aspects will be appreciated upon reading and understanding the attached figures and detailed description. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] As described in the background technology, in the related art, some B-pillar-less cars include a door inner panel and a door interior trim panel. The door interior trim panel is arranged on the surface of the door inner panel facing the interior of the vehicle. One end of the seat belt has a retractor for rewinding the seat belt. When fixing the retractor, the retractor is separately fixed to the door inner panel by bolts. When the seat belt is reeled in the retractor, a pulling force is generated on the retractor, causing the retractor to generate a pulling force on the door inner panel. Therefore, if only the door inner panel is used to fix the retractor, it is very easy to cause the door inner panel to deform, thereby reducing the fixing strength of the retractor to the door inner panel.

[0036] An embodiment of the present application provides a vehicle door structure and a vehicle thereof, wherein a mounting reinforcement plate is provided on the inner door panel and at the position of the retractor, and the mounting plate is fixed to the inner door panel and the mounting reinforcement plate by means of screws and mounting nuts, thereby improving the fixing strength of the retractor on the inner door panel, thereby preventing the retractor from pulling the inner door panel to deform when the belt body is reeled in the retractor; a first reinforcement plate and a second reinforcement plate are provided on the inner door panel and at the position of the guide ring, and the guide ring is fixed to the inner door panel, the first reinforcement plate and the second reinforcement plate by means of fixing bolts and fixing nuts, thereby improving the fixing strength of the guide ring, so that when the belt body moves in the guide ring, the guide ring will not pull the inner door panel to deform, thereby indirectly improving the safety of the belt body when in use.

[0037] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0038] In conjunction with Figures 1 to 4, on the one hand, the present application provides a vehicle door structure, including a vehicle door inner panel 100, a mounting reinforcement plate 300 and a seat belt assembly 400, the vehicle door inner panel 100 is connected to the mounting reinforcement plate 300, the seat belt assembly 400 includes a belt body 410, a retractor 420 and a mounting member 500; the retractor 420 is used to rewind the belt body 410, the retractor 420 is located on the side of the vehicle door inner panel 100 away from the mounting reinforcement plate 300, and the mounting member 500 is used to fix the retractor 420, the vehicle door inner panel 100 and the mounting reinforcement plate 300 together.

[0039] By adopting the above technical solution, by fixing the retractor 420, the door inner panel 100 and the mounting reinforcement plate 300 together through the mounting member 500, compared with fixing the retractor 420 alone to the door inner panel 100, the door inner panel 100 and the mounting reinforcement plate 300 improve the fixing strength of the retractor 420, thereby indirectly improving the reeling effect of the belt body 410 in the retractor 420, preventing the retractor 420 from pulling the door inner panel 100 and causing deformation of the door inner panel 100; by arranging the belt body 410 of a vehicle without a B-pillar on the door, the two ends of the belt body 410 do not need to be fixed to the seats inside the vehicle, there is no need to set components for fixing the belt body 410 on the seats, and there is no need to enhance the skeleton strength of the seat, thereby reducing the production cost of the seat.

[0040] In combination with Figures 2 to 4, the mounting member 500 includes a mounting plate 510, a mounting rod 520 and an anti-slip portion 530. The retractor 420 is fixedly arranged on the mounting plate 510, the mounting rod 520 is fixedly arranged on the mounting plate 510, and the mounting rod 520 is used to pass through the vehicle door inner panel 100 and the mounting reinforcement plate 300 at the same time. The anti-slip portion 530 is detachably connected to the mounting rod 520, and the anti-slip portion 530 is used to prevent the mounting rod 520 from detaching from the vehicle door inner panel 100 and the mounting reinforcement plate 300.

[0041] By adopting the above technical solution, when it is necessary to fix the retractor 420, the mounting plate 510 drives the retractor 420 to be placed on the surface of the door inner panel 100 away from the mounting reinforcement plate 300. At this time, the mounting plate 510 drives the mounting rod 520 to pass through the door inner panel 100 and the mounting reinforcement plate 300 at the same time. By installing the anti-slip portion 530 on the mounting rod 520, the anti-slip portion 530 prevents the mounting rod 520 from being separated from the door inner panel 100 and the mounting reinforcement plate 300. 00 is detached, thereby realizing the installation of the retractor 420; when the retractor 420 needs to be disassembled, the anti-detachment portion 530 is removed from the mounting rod 520, so that the mounting plate 510 drives the mounting rod 520 to be removed from the vehicle door inner panel 100 and the mounting reinforcement plate 300; the arrangement of the mounting plate 510, the mounting rod 520 and the anti-detachment portion 530 has a simple structure, improves the fixing effect of the retractor 420, and reduces the cost of fixing the retractor 420.

[0042] As shown in FIG. 4 , the mounting rod 520 is configured as a screw rod, and the anti-slip portion 530 includes a mounting nut sleeved and threadedly connected to the screw rod.

[0043] By adopting the above technical solution and the setting of screws and mounting nuts, the fixing strength of the retractor 420 to the door inner panel 100 and the mounting reinforcement plate 300 is improved, and the setting and fixing method using screws and mounting nuts is convenient and simple, and it is easy to install and disassemble the retractor 420; the setting using screws and mounting nuts is low in cost and improves the fixing effect of the retractor 420.

[0044] In combination with Figures 1 to 4, it also includes a door interior panel 200, a door inner panel 100 is connected between the door interior panel 200 and the installation reinforcement plate 300, and a water-retaining film (not shown in the figure) is provided on the surface of the door inner panel 100 facing the door interior panel 200, and a retractor 420 is provided between the water-retaining film and the door interior panel 200; in this embodiment, an opening is provided on the retractor 420 for the belt body 410 to pass through, and the opening is set toward the interior of the vehicle.

[0045] By adopting the above technical solution, the water-repellent film is arranged on the side of the retractor 420 away from the door interior panel 200, so that the water-repellent film can block rainwater entering the door, thereby preventing water stains from entering the retractor 420, thereby affecting the service life of the belt body 410, and indirectly improving the safety of the belt body 410; by facing the opening to the interior of the vehicle, it is further prevented that water stains enter the interior of the retractor 420 along the opening and affect the belt body 410; the retractor 420 is arranged between the water-repellent film and the door interior panel 200, so that part of the belt body 410 released by the retractor 420 can be hidden between the door inner panel 100 and the door interior panel 200, thereby improving the aesthetics of the seat belt assembly 400 arranged on the door.

[0046] 2 and 5 , the door structure further includes a guide assembly 430 . The guide assembly 430 includes a guide ring 431 . The guide ring 431 is disposed on the door inner panel 100 . The guide ring 431 is used for the belt body 410 to pass through.

[0047] By adopting the above technical solution, the setting of the guide ring 431 makes it easy for the belt body 410 to pass through, thereby guiding the movement of the belt body 410 and positioning the belt body 410 on the passenger, thereby improving the safety protection performance of the belt body 410 when in use. The setting of the guide ring 431 has a simple structure and a low production cost, thereby improving the use effect of the guide ring 431.

[0048] In combination with Figures 2, 5 and 6, the door structure also includes a fixed reinforcement plate 600 and a fixing member 610. The fixed reinforcement plate 600 is located on the side of the door inner panel 100 facing the installation reinforcement plate 300. The fixing member 610 is used to fix the guide ring 431 to the door inner panel 100 and the fixed reinforcement plate 600 at the same time.

[0049] By adopting the above-mentioned technical solution, the setting of the fixed reinforcement plate 600 improves the strength of the position on the door inner panel 100 where the guide ring 431 needs to be fixed, thereby indirectly improving the guiding effect of the guide ring 431 on the belt body 410. The use of the fixing part 610 can fix the guide ring 431 to the door inner panel 100 and the fixed reinforcement plate 600 at the same time, thereby further improving the fixing firmness of the guide ring 431 and further improving the guiding effect of the guide ring 431 on the belt body 410.

[0050] 5 and 6 , the fixed reinforcement plate 600 includes a first reinforcement plate 620 and a second reinforcement plate 630 , and the first reinforcement plate 620 and the second reinforcement plate 630 are sequentially arranged in a direction away from the door inner panel 100 .

[0051] In this embodiment, the first reinforcing plate 620 and the second reinforcing plate 630 may be fixed together by welding. In other embodiments, the first reinforcing plate 620 and the second reinforcing plate 630 may also be abutted against each other.

[0052] By adopting the above technical solution, by fixing the reinforcement plate 600 to include the first reinforcement plate 620 and the second reinforcement plate 630, the first reinforcement plate 620 and the second reinforcement plate 630 further increase the thickness of the door inner panel 100 where the guide ring 431 needs to be installed, thereby further improving the overall strength of the door inner panel 100, the first reinforcement plate 620 and the second reinforcement plate 630, thereby further improving the fixing strength of the guide ring 431, indirectly improving the guiding effect of the belt body 410 when the belt body 410 moves, and improving the safety of the seat belt assembly 400 when in use; the arrangement of the first reinforcement plate 620 and the second reinforcement plate 630 has a simple structure and has a low production cost while maintaining a good use effect.

[0053] 5 and 6 , the fixing member 610 includes a fixing bolt 611 and a fixing nut 612 . The fixing bolt 611 is used to be simultaneously passed through the guide ring 431 , the door inner panel 100 , the first reinforcing plate 620 and the second reinforcing plate 630 . The fixing nut 612 is sleeved and threadedly connected to the fixing bolt 611 .

[0054] By adopting the above technical solution, when it is necessary to fix the guide ring 431 to the door inner panel 100, the first reinforcing plate 620 and the second reinforcing plate 630, the rod of the fixing bolt 611 is passed through the door inner panel 100, the first reinforcing plate 620 and the second reinforcing plate 630 at the same time, and the fixing nut 612 is sleeved and threaded on the fixing bolt 611, so that the guide ring 431 is fixed to the door inner panel 100, the first reinforcing plate 620 and the second reinforcing plate 630; the setting of the fixing bolt 611 and the fixing nut 612 has good fixing firmness, and the fixing bolt 611 and the fixing nut 612 have a simple structure, which is convenient for achieving the installation and fixation of the guide ring 431.

[0055] In combination with Figures 2, 7 and 8, the vehicle door structure also includes a fixing assembly 440, which includes a first plate body 441, a second plate body 442 and a connecting member 443. The first plate body 441 and the second plate body 442 are both located on the side of the vehicle door inner panel 100 away from the installation reinforcement plate 300. The first plate body 441 is fixedly set on the vehicle door inner panel 100, and the second plate body 442 is provided with a fixing port 444 for fixing the belt body 410. The connecting member 443 is used to detachably connect the second plate body 442 to the first plate body 441.

[0056] 7 and 8 , in this embodiment, the belt body 410 is a double-layer arrangement, and the end portion of the double-layer belt body 410 near the fixing opening 444 is separated, and the remaining portion of the double-layer belt body 410 is an integrated arrangement. By passing the separated portion of the double-layer belt body 410 through the fixing opening 444, the installation and fixation between the belt body 410 and the fixing opening 444 is achieved; the first plate body 441 is fixedly arranged on the vehicle door inner panel 100 by welding, and the first plate body 441 includes a U-shaped plate 445 and flanges 446 arranged on the edges of both sides of the U-shaped plate 445. The recess of the U-shaped plate 445 is arranged toward the vehicle door inner panel 100, and the flanges 446 are fixed to the vehicle door inner panel 100 by welding. The connecting member 443 includes a connecting bolt 447 and a connecting nut 448. The rod of the connecting bolt 447 is simultaneously passed through the second plate body 442 and the U-shaped plate 445, and the connecting nut 448 is sleeved and threadedly connected to the connecting bolt 447.

[0057] By adopting the above technical solution, the setting of the fixing port 444 facilitates the fixation of the belt body 410. By fixing the first plate body 441 on the vehicle door inner panel 100, the second plate body 442 can be detachably connected to the first plate body 441 through the connecting bolts 447 and the connecting nuts 448, thereby facilitating the installation and disassembly of the second plate body 442. Since the first plate body 441 is set on the vehicle door inner panel 100, the first plate body 441 and the vehicle door inner panel 100 increase the fixing strength of the second plate body 442, thereby increasing the fixing strength of the belt body 410 away from the end of the retractor 420, and indirectly improving the safety of the belt body 410 when in use.

[0058] On the other hand, the present application provides a car, comprising a car body and a door structure according to any one of the above embodiments arranged on the car body.

[0059] Among them, the specific structure of the vehicle door structure has been described in detail in the above embodiments and will not be repeated here.

[0060] In the automobile provided in the embodiment of the present application, a mounting reinforcement plate 300 is provided on the door inner panel 100 and at the position of the retractor 420, and the mounting plate 510 is fixed to the door inner panel 100 and the mounting reinforcement plate 300 by screws and mounting nuts, thereby improving the fixing strength of the retractor 420 on the door inner panel 100, thereby preventing the retractor 420 from pulling the door inner panel 100 into deformation when the belt body 410 is reeled in the retractor 420; a first reinforcement plate 620 and a second reinforcement plate 630 are provided on the door inner panel 100 and at the position of the guide ring 431, and the guide ring 431 is fixed to the door inner panel 100, the first reinforcement plate 620 and the second reinforcement plate 630 by fixing bolts 611 and fixing nuts 612, thereby improving the fixing strength of the guide ring 431, so that when the belt body 410 moves in the guide ring 431, the guide ring 431 will not pull the door inner panel 100 into deformation, thereby indirectly improving the safety of the belt body 410 when in use.

[0061] The present invention is intended to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the scope of the technical solution of the embodiments of the present application.

Claims

1. A vehicle door structure, comprising a vehicle door inner panel (100), a mounting reinforcement plate (300), and a safety belt assembly (400), wherein the vehicle door inner panel (100) is connected to the mounting reinforcement plate (300), and the safety belt assembly (400) comprises a belt body (410), a retractor (420), and a mounting member (500); The retractor (420) is used to retract the belt body (410), and the retractor (420) is located on the side of the vehicle door inner panel (100) away from the installation reinforcement plate (300). The mounting member (500) is used to fix the retractor (420), the vehicle door inner panel (100) and the installation reinforcement plate (300) together.

2. The vehicle door structure according to claim 1, wherein: The mounting member (500) includes a mounting plate (510), a mounting rod (520) and an anti-slip portion (530); the retractor (420) is fixedly arranged on the mounting plate (510); the mounting rod (520) is fixedly arranged on the mounting plate (510); and the mounting rod (520) is used to be simultaneously passed through the vehicle door inner panel (100) and the mounting reinforcement plate (300); the anti-slip portion (530) is detachably connected to the mounting rod (520); and the anti-slip portion (530) is used to prevent the mounting rod (520) from being detached from the vehicle door inner panel (100) and the mounting reinforcement plate (300).

3. The vehicle door structure according to claim 2, wherein: The mounting rod (520) is configured as a screw rod, and the anti-slip portion (530) includes a mounting nut sleeved and threadedly connected to the screw rod.

4. The vehicle door structure according to claim 2 or 3 further includes a vehicle door interior panel (200), wherein the vehicle door inner panel (100) is connected between the vehicle door interior panel (200) and the mounting reinforcement plate (300), and a water-retaining film is provided on the surface of the vehicle door inner panel (100) facing the vehicle door interior panel (200), and the retractor (420) is provided between the water-retaining film and the vehicle door interior panel (200).

5. The vehicle door structure according to claim 2 or 3 further includes a guide assembly (430), wherein the guide assembly (430) includes a guide ring (431), wherein the guide ring (431) is arranged on the vehicle door inner panel (100), and the guide ring (431) is used for allowing the belt body (410) to pass through.

6. The vehicle door structure according to claim 5 further includes a fixed reinforcement plate (600) and a fixing member (610), wherein the fixed reinforcement plate (600) is located on the side of the vehicle door inner panel (100) facing the installation reinforcement plate (300), and the fixing member (610) is used to fix the guide ring (431) to the vehicle door inner panel (100) and the fixed reinforcement plate (600) at the same time.

7. The vehicle door structure according to claim 6, wherein: The fixed reinforcement plate (600) comprises a first reinforcement plate (620) and a second reinforcement plate (630), wherein the first reinforcement plate (620) and the second reinforcement plate (630) are sequentially arranged in a direction away from the vehicle door inner panel (100).

8. The vehicle door structure according to claim 7, wherein: The fixing member (610) includes a fixing bolt (611) and a fixing nut (612). The fixing bolt (611) is used to be simultaneously passed through the guide ring (431), the vehicle door inner panel (100), the first reinforcing plate (620) and the second reinforcing plate (630). The fixing nut (612) is sleeved and threadedly connected to the fixing bolt (611).

9. The vehicle door structure according to claim 2 or 3 further includes a fixing assembly (440), the fixing assembly (440) includes a first plate body (441), a second plate body (442) and a connecting member (443), the first plate body (441) and the second plate body (442) are both located on the side of the vehicle door inner panel (100) away from the installation reinforcement plate (300), the first plate body (441) is fixedly arranged on the vehicle door inner panel (100), the second plate body (442) is provided with a fixing port (444) for fixing the belt body (410), and the connecting member (443) is used to detachably connect the second plate body (442) to the first plate body (441).

10. The vehicle door structure according to claim 9, wherein the first plate body (441) includes a U-shaped plate (445) and flanges (446) arranged on both side edges of the U-shaped plate (445), the recess of the U-shaped plate (445) is arranged toward the vehicle door inner panel (100), and the flanges (446) are fixed to the vehicle door inner panel (100).

11. According to the vehicle door structure according to claim 10, the connecting member (443) includes a connecting bolt (447) and a connecting nut (448), the rod of the connecting bolt (447) is simultaneously passed through the second plate body (442) and the U-shaped plate (445), and the connecting nut (448) is sleeved and threadedly connected to the connecting bolt (447).

12. The vehicle door structure according to claim 2 or 3, wherein the retractor (420) is provided with an opening for allowing the belt body (410) to pass through, and the opening is arranged toward the interior of the vehicle.

13. The vehicle door structure according to claim 2 or 3, wherein the belt body (410) is a double-layer arrangement.

14. An automobile comprising a vehicle body and a door structure according to any one of claims 1 to 13 arranged on the vehicle body.

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