Vehicle door limiting structure and vehicle

Abstract

The utility model relates to the technical field of automobile accessories, and particularly provides an automobile door limiting structure and an automobile. The car door limiting structure comprises a hinge seat located on a door frame, a limiting arm hinged to the hinge seat, a limiting seat arranged on a door plate of a car door and a covering piece. The limiting arm comprises an arm body, and a hinging part and a stopping part which are respectively arranged at two ends of the arm body; the hinge part is connected with the hinge seat, and the limiting seat is slidably arranged on the arm body; along with the opening of the vehicle door, the limiting seat slides towards one end of the stopping part, and is stopped by the stopping part to be limited on the arm body; the covering piece is arranged above the arm body and covers the portion, in sliding fit with the limiting base, of the arm body. According to the car door limiting structure, the sheet-shaped shielding sheet structure is adopted, shielding of the sliding fit portion of the limiting arm and the limiting base is achieved, and the dustproof effect is achieved; the whole vehicle door limiting structure is compact and simple and convenient to assemble, and therefore the overall size and the assembling structure of the vehicle door limiting structure are optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, particularly relates to a door limiting structure. BACKGROUND

[0002] With the rapid development of the automobile industry, people have put forward higher requirements for the comfort and stability of automobile doors; among them, the door stopper plays an important buffering role in the opening and closing process of the door, therefore, the reliability of the door stopper is particularly important for the opening and closing operation of the door, which directly affects the passenger's experience of using the door.

[0003] In the existing structure, a buffer block is usually added at the end of the main arm of the stopper to play a buffering role in opening the door, and long-term use will cause the buffer block to be damaged, and the buffer block and the door body will also produce adhesion sound when colliding.

[0004] In addition, in order to prevent dust and sundries from affecting the stopper, the existing design of the stopper is mostly prevented from entering dust by a dust cover; the dust cover wraps the stopper, which requires a large size, which not only needs to check whether it interferes with the surrounding parts, but also needs to increase the cost of opening the mold of the dust cover; moreover, during the assembly process of the stopper and the dust cover, the bolt needs to be tightened by hand, which is easy to fall off, resulting in high assembly operation requirements, waste of working hours, laborious personnel operation, and affecting production efficiency. SUMMARY

[0005] Therefore, the utility model aims at providing a door limiting structure to optimize the overall volume and assembly structure of the door limiting structure.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] A door limiting structure, comprising a hinge seat located on a door frame, a limiting arm hinged to the hinge seat, a limiting seat provided on a door panel of a door, and a cover sheet; the limiting arm comprises an arm body, and a hinge part and a stop part respectively arranged at both ends of the arm body; the hinge part is connected to the hinge seat, and the limiting seat is slidingly arranged on the arm body; with the opening of the door, the limiting seat slides towards one end of the stop part and is limited on the arm body due to the blocking of the stop part; the cover sheet is arranged above the arm body and covers the sliding cooperation part of the arm body and the limiting seat.

[0008] Further, the door plate comprises a frame plate corresponding to the door frame, and a hinge part reinforcing plate arranged in the frame plate; the limiting arm is inserted into the inner cavity of the door through the through hole on the frame plate and the hinge part reinforcing plate, and the limiting seat is fixed to the through hole on the hinge part reinforcing plate.

[0009] Further, a cavity is formed between the frame plate and the hinge part reinforcing plate, and the through hole penetrates through the cavity; the connecting piece for fixing the limiting seat is hidden in the cavity.

[0010] Further, the cover sheet comprises a main body for covering the arm body, and end part blocking sheets and buffer blocks arranged at two ends of the main body; the end part blocking sheets are arranged at the through hole on the hinge part reinforcing plate, the buffer blocks abut against the stop part and can form a buffer between the stop part and the limiting seat.

[0011] Further, the cover sheet is integrally injection molded by rubber.

[0012] Further, a plurality of limiting parts are arranged on the arm body; with the opening of the door, the limiting seat can slide into the limiting parts, and the limiting parts can prevent the limiting seat from sliding out.

[0013] Further, the limiting parts are clamping grooves formed on the top of the arm body, the clamping grooves are arc-shaped concave structures, and arc-shaped protrusions are formed between adjacent clamping grooves.

[0014] Further, the limiting seat comprises a housing fixed to the door plate, and a limiting block arranged on the housing; the housing is movably arranged on the arm body, the limiting block abuts against the top of the arm body and can slide into and out of the clamping groove with the movement of the housing; the cover sheet is arranged above the limiting block.

[0015] Further, a clamping groove is arranged on the side of the housing opposite to the door plate, and a clamping plate is arranged on the cover sheet and clamped in the clamping groove.

[0016] Compared with the prior art, the car door limiting structure has the following advantages:

[0017] The car door limiting structure comprises a limiting arm, a limiting seat and a cover sheet, the opening of the door is limited by the three components, the limiting arm can be conveniently installed on the hinge seat, and the limiting seat is also conveniently installed on the door plate; the cover sheet has a sheet-shaped structure and is small in size, and by fixing the two ends of the cover sheet on the door plate, the limiting seat or the limiting arm, the sliding cooperation part of the limiting arm and the limiting seat can be covered to achieve the dustproof effect; the car door limiting structure is compact and simple, and is convenient to assemble, so that the overall size and assembly structure of the car door limiting structure are optimized.

[0018] In addition, the hinge part reinforcing plate is arranged on the frame plate of the door plate, which can effectively enhance the structural strength of the part and provide a stable installation basis for the installation of the limiting seat. The cavity is arranged between the frame plate and the hinge part reinforcing plate, which provides a containing space for the connecting piece of the limiting seat and facilitates the improvement of the structural stability of the part. When the vehicle door is opened to the position, a certain impact force exists between the limiting seat and the limiting arm, and the cavity can buffer the impact to a certain extent.

[0019] In addition, the limiting seat adopts the split cooperation structure of the shell and the limiting block, which facilitates the realization of the guidance of the limiting seat on the arm body and the clamping cooperation between the limiting seat and each limiting part. The limiting block will slide in the gap space between the main body and the arm body during the opening of the vehicle door, and the sliding cooperation surface at the top of the arm body can be well covered by the covering piece. The clamping groove is arranged on the shell, and the clamping plate on the covering piece is clamped into the clamping groove. In this way, the end blocking piece on both sides of the limiting seat and the clamping plate are fixed on the door plate, thereby further guaranteeing the fixing effect of the covering piece and effectively preventing the main body from deviating from the top of the arm body.

[0020] Another purpose of the present application is to provide a vehicle, wherein the vehicle is provided with the vehicle door limiting structure. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated in and constitute a part of this application. The embodiments of the present application and its description are used to explain the present application, and the front and back, up and down, and other directional words involved therein only represent relative positional relationship, and do not constitute undue limitation on the present application. In the drawings:

[0022] Figure 1 The overall structure schematic diagram of the vehicle door limiting structure described in the embodiment of the present application is arranged on the vehicle door;

[0023] Figure 2 The split structure schematic diagram of the parts in the embodiment of the present application is shown in the figure; Figure 1 The split structure schematic diagram of the parts in the embodiment of the present application is shown in the figure;

[0024] Figure 3 The structure schematic diagram of the parts in the embodiment of the present application is shown in the figure; Figure 1 The structure schematic diagram of the parts in the embodiment of the present application is shown in the figure;

[0025] Figure 4 The split structure schematic diagram of the parts in the embodiment of the present application is shown in the figure; Figure 3 The split structure schematic diagram of the parts in the embodiment of the present application is shown in the figure;

[0026] Figure 5A split structure schematic view of each main component in the door limiting structure is shown in the embodiments of the present application.

[0027] Figure 6 A structure schematic view of the limiting arm after the glue sleeve is hidden is shown in the embodiments of the present application.

[0028] Figure 7 A front view of the door limiting structure is shown in the embodiments of the present application.

[0029] Mark explanation:

[0030] 1, door panel; 100, cavity; 101, first via hole; 102, second via hole; 11, frame plate; 12, hinge part reinforcing plate; 120, mounting hole;

[0031] 2, limiting seat; 20, shell; 200, clamping groove; 201, guide sliding slot; 21, limiting block; 210, plug-in rod;

[0032] 3, limiting arm; 30, hinge part; 31, arm body; 310, clamping groove; 311, arched protrusion; 32, stop part; 3a, framework; 3b, glue sleeve;

[0033] 4, cover sheet; 40, end stop sheet; 41, main body; 410, through hole; 42, buffer block; 43, clamping plate;

[0034] 5, hinge seat; 500, hinge shaft. Specific implementation

[0035] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0036] In the description of the utility model, it should be declared that if the terms such as "upper, lower, left, right, front, rear, inner and outer" indicating the orientation or positional relationship appear, it is based on the orientation or positional relationship shown in the drawing, and it is only for the convenience of describing the utility model, and it does not indicate or imply that the indicated device or element must have a specific orientation, be constructed or operated in a specific orientation, so it cannot be understood as a limitation on the utility model. In the embodiments, the orientation words such as "upper, lower, left, right, front, rear" used in the description of the vehicle are defined based on the up-down direction (also called height direction), left-right direction (also called width direction) and front-rear direction (also called length direction) of the vehicle. As shown in the drawings, the X direction is the front-rear direction of the vehicle, wherein the side pointed by the arrow is "front", and vice versa. The Y direction is the left-right direction of the vehicle, wherein the side pointed by the arrow is "left", and vice versa. The Z direction is the up-down direction of the vehicle, wherein the side pointed by the arrow is "up", and vice versa. "Inner and outer" are defined based on the contour of the corresponding component, for example, "inner and outer" are defined based on the contour of the vehicle, the side close to the middle of the vehicle is "inner", and vice versa.

[0037] In addition, in the description of the utility model, unless otherwise explicitly limited, the terms "mounting", "connecting", "connection" and "connector" should be understood broadly. For example, the connection can be fixed connection, or detachable connection, or integral connection, can be mechanical connection, or electrical connection, can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood in combination with specific circumstances. In the description of the utility model, the limiting terms such as "first, second, A, B, C and D" appear, which are only used to distinguish different positions, attributions or purposes of the same features, to avoid ambiguity and confusion in the description, and cannot be understood as indicating or implying relative importance.

[0038] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0039] Embodiment one

[0040] This embodiment relates to a kind of door limiting structure, can optimize the overall volume and assembly structure of door limiting structure; Figure 1 And Figure 2 As shown in the figure.

[0041] Overall, the car door limiting structure includes a hinge seat 5 on the door frame, a limiting arm 3 hinged to the hinge seat 5, a limiting seat 2 provided on the door panel 1 of the car door, and a cover sheet 4. Among them, the limiting arm 3 includes an arm body 31, and a hinge part 30 and a stop part 32 respectively arranged at both ends of the arm body 31; the hinge part 30 is connected to the hinge seat 5, and the limiting seat 2 is slidingly arranged on the arm body 31. With the opening of the car door, the limiting seat 2 slides towards one end where the stop part 32 is located, and is limited on the arm body 31 due to the blocking of the stop part 32; the cover sheet 4 is arranged above the arm body 31 to cover the sliding cooperation part of the arm body 31 and the limiting seat 2.

[0042] It should be pointed out that based on the overall design idea described above, the technical scheme of the utility model can adopt various different specific implementation structures, forms or configuration sequences. For example, the guiding sliding of the limiting seat 2 on the limiting arm 3 described above can adopt the form of setting a guide rail on the limiting arm 3, or a guide groove can be set on the limiting seat 2 to guide the sliding of the limiting arm 3 in the guide groove. The specific setting sequence, assembly mode, etc. of the limiting seat 2, the limiting arm 3 and the cover sheet 4, etc. can also be flexibly adjusted. For the parts required by the overall scheme implementation but not involved in the overall setting described above, reasonable and flexible design can be made according to the mature setting means in the field, the actual situation during implementation, etc. The specific implementation scheme described below in the embodiment is only one of the relatively optimal schemes formed by various combinations and changes of the above, and in actual implementation, the person skilled in the art can make flexible adjustment and improvement in combination with the actual situation. Obviously, the various specific form combinations and changes of the above can form many schemes, and the specific implementation scheme of the embodiment is within the protection scope of the utility model.

[0043] In combination with Figs. 1-4, Figure 3 Figure 4 As shown in Figs. 1-4, during the opening of the car door, since the limiting seat 2 is fixed on the door panel 1, it moves with the opening of the car door; at the same time, since the limiting seat 2 and the limiting arm 3 are in sliding cooperation, and the limiting arm 3 is hingedly installed on the hinge seat 5 through the hinge shaft 500 on the hinge part 30, it can swing synchronously with the car door under the driving of the limiting seat 2. In this way, during the opening of the car door, the limiting seat 2 will slide along the arm body 31 towards one end of the stop part 32 on the limiting arm 3, and when the limiting seat 2 abuts against the stop part 32, the opening degree of the car door is limited, thereby realizing the limiting function of the limiter on the car door. The specific structure of the stop part 32 can be selected in various ways; in the embodiment, the stop part 32 is constructed as a long strip block structure perpendicular to the arm body 31, and the arm body 31 and the stop part 32 are integrally connected, and the whole is in the shape of "T". When the limiting seat 2 slides on the arm body 31 to the stop part 32, it will be naturally blocked by the stop part 32, and will not be separated from the arm body 31. ​

[0044] For the specific structure of the door panel 1, there are of course many different structural solutions; can be referred to the existing settings. In the embodiment, as shown in FIG Figure 3 、 Figure 4 The door panel 1 includes a frame plate 11 corresponding to the door frame, and a hinge part reinforcing plate 12 stacked inside the frame plate 11; the limiting arm 3 is inserted into the inner cavity of the door through the through hole on the frame plate 11 and the hinge part reinforcing plate 12, and the limiting seat 2 is fixed to the through hole on the hinge part reinforcing plate 12.

[0045] The hinge part reinforcing plate 12 is added to the frame plate 11 of the door panel 1, which can effectively enhance the structural strength of this part and provide a stable installation basis for the installation of the limiting seat 2. In the embodiment, a first through hole 101 is provided on the frame plate 11, and a second through hole 102 is provided on the hinge part reinforcing plate 12, and the first through hole 101 and the second through hole 102 serve as through holes for the limiting arm 3 to pass through. The hinge part reinforcing plate 12 at the edge of the second through hole 102 is provided with a mounting hole 120, and the limiting seat 2 can be conveniently fastened to the hinge part reinforcing plate 12 through connecting members such as bolts and screws; and in order to facilitate the installation operation of the limiting seat 2, the size of the first through hole 101 is larger than that of the second through hole 102, so that the connecting member at the edge of the second through hole 102 can be tightened by operating on one side of the first through hole 101, realizing the installation and fixation of the limiting seat 2 on the hinge part reinforcing plate 12.

[0046] Based on the above settings, the frame plate 11 and the hinge part reinforcing plate 12 of the embodiment form a cavity 100 therebetween, and the through hole passes through the cavity 100; the connecting member for fixing the limiting seat 2 is hidden in the cavity 100. The cavity 100 is provided between the frame plate 11 and the hinge part reinforcing plate 12, which provides a space for the connecting member of the limiting seat 2 and also facilitates the improvement of the structural stability of this part; when the door is opened to the position, there is a certain impact force between the limiting seat 2 and the limiting arm 3, and the cavity 100 can have a certain buffering effect on the impact.

[0047] As Figure 5As shown, the cover sheet 4 of the embodiment includes a main body 41 for covering the arm body 31, and end blocking sheets 40 and buffer blocks 42 respectively arranged at both ends of the main body 41; the end blocking sheet 40 is blocked at the through hole on the hinge portion reinforcing plate 12, and the buffer block 42 is abutted on the stop portion 32 and can form a buffer between the stop portion 32 and the limiting seat 2. The two ends of the cover sheet 4 are respectively provided with the end blocking sheet 40 and the main body 41, the end blocking sheet 40 can be fixed on the hinge portion reinforcing plate 12 to achieve a certain blocking effect on the second through hole 102; the buffer block 42 is abutted on the stop portion 32 and can play a good buffering effect when the limiting seat 2 hits the stop portion 32. Preferably, the buffer block 42 can also be bonded to the stop portion 32 to make the fixing effect of the cover sheet 4 better; in this way, the main body 41 of the cover sheet 4 can be well covered on the top of the arm body 31 of the limiting arm 3 to play an effective covering and dustproof effect.

[0048] Of course, there are many different schemes for the material and processing method of the cover sheet 4; for example, plastic, leather and the like can be used for processing. In the embodiment, the cover sheet 4 is integrally injection molded by rubber. The cover sheet 4 is processed by rubber, which is convenient for integrally injection molding various structures on the cover sheet 4. Moreover, the main body 41 of the cover sheet 4 needs to have good deformation ability; since the two ends of the cover sheet 4 are respectively connected with the limiting seat 2 and the stop portion 32, during the process that the limiting seat 2 slides on the limiting arm 3 and approaches the stop portion 32, the main body 41 between the limiting seat 2 and the stop portion 32 needs to be deformed and arched to meet the overall action requirements of the whole door limiting structure; during the deformation process of the main body 41, the main body 41 will still be located above the arm body 31 to play a blocking and dustproof role.

[0049] In addition to using the stop portion 32 on the limiting arm 3 to block the limiting seat 2 to achieve the opening limiting effect of the door; the arm body 31 of the embodiment is also provided with a plurality of limiting portions; with the opening of the door, the limiting seat 2 can slide into the limiting portion, and the limiting portion can inhibit the sliding out of the limiting seat 2. By providing a plurality of limiting portions on the arm body 31, during the whole sliding process of the limiting seat 2, before the limiting seat 2 reaches the stop portion 32, the limiting seat 2 can be positioned at any one of the limiting portions to achieve a jamming effect, thereby providing a plurality of stable positions for the opening of the door; in this way, the door can be stably stopped at a plurality of set angles.

[0050] Of course, there are many different structural schemes for the limiting portion; for example, it can be configured in the form of a limiting column and a limiting hole matched with each other in an elastic expansion manner. In the embodiment, the limiting portion is still configured in the form of a limiting column and a limiting hole matched with each other in an elastic expansion manner. Figure 5As shown, the limiting part is a clamping groove 310 formed on the top of the arm body 31, the clamping groove 310 is arc-shaped and concave, and an arch-shaped protrusion 311 is formed between adjacent clamping grooves 310. The limiting part adopts the form of the clamping groove 310, and utilizes the arc-shaped concave structure of the clamping groove 310 and the arch-shaped protrusion 311 between the clamping grooves 310 for transition, which facilitates the sliding of the limiting seat 2 and well realizes the clamping positioning of the limiting seat 2. The clamping groove 310 and the arch-shaped protrusion 311 are also convenient for being integrally processed and formed on the top of the arm body 31.

[0051] In addition, the limiting seat 2 of the embodiment adopts a split structure, specifically including a shell 20 fixedly connected with the door panel 1, and a limiting block 21 arranged on the shell 20; the shell 20 is movably arranged on the arm body 31 in a guided manner, the limiting block 21 abuts against the top of the arm body 31 and can slide into and out of the clamping groove 310 along with the movement of the shell 20; the cover sheet 4 is located above the limiting block 21. The limiting seat 2 adopts the split cooperation structure of the shell 20 and the limiting block 21, which facilitates the realization of the guidance of the limiting seat 2 on the arm body 31 and the clamping cooperation between the limiting seat 2 and each limiting part; in specific implementation, a larger guiding sliding groove 201 can be arranged at the bottom of the limiting seat 2, and the upper part of the arm body 31 slides in the guiding sliding groove 201, thereby realizing the guided movement of the limiting seat 2 on the limiting arm 3. The limiting block 21 will slide in the gap space between the main body 41 and the arm body 31 during the opening of the vehicle door, and the sliding cooperation surface on the top of the arm body 31 can be well covered by the cover sheet 4.

[0052] Specifically, the limiting block 21 is provided with an insertion rod 210, and the insertion rod 210 is inserted into the insertion hole arranged on the shell 20, so as to realize the assembly of the limiting block 21 on the shell 20. Since the limiting block 21 is located below the cover sheet 4, a through hole 410 can be arranged on the main body 41 for the insertion rod 210 to pass through. Meanwhile, the shell 20 opposite to the door panel 1 is further provided with a clamping groove 200, and correspondingly, a clamping plate 43 is arranged on the cover sheet 4 and clamped in the clamping groove 200; the clamping groove 200 at this position can adopt the form of a dovetail groove. The clamping groove 200 is arranged on the shell 20 for the clamping plate 43 on the cover sheet 4 to be clamped, so that the end blocking plates 40 located on both sides of the limiting seat 2 and the clamping plate 43 are fixed on the door panel 1, thereby further ensuring the fixing effect of the cover sheet 4 and effectively preventing the main body 41 from deviating from the top of the arm body 31.

[0053] The structure and material of the limiting arm 3 can be various.In the embodiment, the limiting arm 3 comprises a framework 3a and a rubber sleeve 3b sleeved outside the framework 3a, and the clamping groove 310 and the arc-shaped protrusion 311 are formed on the rubber sleeve 3b, so that the limiting block 21 can pass through the arc-shaped protrusion 311 more smoothly by the elastic deformation of the rubber sleeve 3b during sliding.The flexible contact and relative sliding between the limiting block 21 and the rubber sleeve 3b can avoid the problem of abnormal noise caused by hard contact and friction.The framework 3a mainly plays a role of framework support to ensure that the limiting arm 3 has sufficient structural connection strength.

[0054] In summary, the door limiting structure of the embodiment comprises three components, i.e., the limiting arm 3, the limiting seat 2 and the cover sheet 4, to realize the opening limiting of the door, the limiting arm 3 can be conveniently installed to the hinged seat 5, and the limiting seat 2 is also convenient to install on the door panel 1; the cover sheet 4 has a sheet structure and is small in size, and by fixing the two ends of the cover sheet 4 on the door panel 1, the limiting seat 2 or the limiting arm 3, the sliding fit part of the limiting arm 3 and the limiting seat 2 can be covered to achieve the dustproof effect; the whole door limiting structure is compact and simple and convenient to assemble, thereby optimizing the overall size and assembly structure of the door limiting structure.

[0055] Embodiment two

[0056] The embodiment relates to a vehicle provided with the door limiting structure provided in the embodiment one.

[0057] The door limiting structure of the utility model, through cover sheet 4 constitute a shielding surface on arm body 31, simultaneously, the buffer block 42 on cover sheet 4 is always connected with stop portion 32, not only play the buffering protection effect in limiting seat 2 and limiting arm 3, also play the dustproof effect to arm body 31.The covering of end stop sheet 40 to via hole also guarantees the overall appearance of the outside of the door frame panel 11.Due to the fact that cover sheet 4 adopts soft rubber sheet structure, the outside of limiting arm 3 is soft rubber sleeve 3b, and flexible contact is formed between limiting block 21 and limiting arm 3, thereby avoiding abnormal noise when opening the door.

[0058] The door limiting structure of the utility model greatly optimizes the limiting structure of the door, replaces the dustproof cover of the existing structure, and has the advantages of simple assembly, compact structure and low manufacturing cost.The through arrangement of cover sheet 4 on limiting arm 3 can realize dustproof and solve the problem of abnormal noise during the process of opening and closing the door, and improve the use experience of the door during the process of opening and closing.

[0059] The above merely describes preferred embodiments of the present utility model, and the detailed configuration explanation, specific structure setting form example, or assembly connection mode expression, etc., are all for the need of full disclosure, so as to better implement the present utility model by the person skilled in the art, and not to limit the protection scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A door limiting structure, characterized in that: comprising a hinge seat (5) on a door frame, a limiting arm (3) hinged to the hinge seat (5), a limiting seat (2) arranged on a door panel (1) of a door, and a cover sheet (4); the limiting arm (3) comprises an arm body (31), and a hinge part (30) and a stop part (32) respectively arranged at two ends of the arm body (31); the hinge part (30) is connected to the hinge seat (5), and the limiting seat (2) is slidingly arranged on the arm body (31); with opening of the door, the limiting seat (2) slides towards one end of the stop part (32), and is limited on the arm body (31) due to blocking of the stop part (32); the cover sheet (4) is arranged above the arm body (31), and covers a sliding matching part of the arm body (31) and the limiting seat (2).

2. The door limiting structure according to claim 1, characterized in that: the door panel (1) comprises a frame panel (11) corresponding to the door frame, and a hinge part reinforcing panel (12) arranged on an inner side of the frame panel (11); the limiting arm (3) is inserted into an inner cavity of the door through a through hole on the frame panel (11) and the hinge part reinforcing panel (12), and the limiting seat (2) is fixed to the through hole on the hinge part reinforcing panel (12).

3. The door limiting structure according to claim 2, characterized in that: a cavity (100) is formed between the frame panel (11) and the hinge part reinforcing panel (12), and the through hole passes through the cavity (100); a connecting piece for fixing the limiting seat (2) is hidden in the cavity (100).

4. The door limiting structure according to claim 3, characterized in that: the cover sheet (4) comprises a main body (41) for covering the arm body (31), and an end part blocking sheet (40) and a buffer block (42) respectively arranged at two ends of the main body (41); the end part blocking sheet (40) blocks the through hole on the hinge part reinforcing panel (12), and the buffer block (42) abuts against the stop part (32) and can form a buffer between the stop part (32) and the limiting seat (2).

5. The door limiting structure according to claim 4, characterized in that: the cover sheet (4) is integrally injection molded by rubber.

6. The door limiting structure according to any one of claims 1 to 5, characterized in that: a plurality of limiting parts are arranged on the arm body (31); with opening of the door, the limiting seat (2) can slide into the limiting parts, and the limiting parts can inhibit sliding out of the limiting seat (2).

7. The door limiting structure according to claim 6, characterized in that: the limiting parts are clamping grooves (310) formed on a top of the arm body (31), the clamping grooves (310) are arc-shaped concave structures, and an arc-shaped protrusion (311) is formed between adjacent clamping grooves (310).

8. The door limiting structure according to claim 7, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The limiting seat (2) comprises a shell (20) fixedly connected with the door panel (1), and a limiting block (21) arranged on the shell (20); The shell (20) is movably arranged on the arm body (31), the limiting block (21) is abutted against the top of the arm body (31), and can slide into and out of the clamping groove (310) along with the movement of the shell (20); the cover sheet (4) is located above the limiting block (21).

9. The door limiting structure according to claim 8, characterized in that: The side of the shell (20) opposite to the door panel (1) is provided with a clamping groove (200), and the cover sheet (4) is provided with a clamping plate (43) clamped in the clamping groove (200).

10. A vehicle, characterized in that: The vehicle is provided with the door limiting structure according to any one of claims 1 to 9.

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