Limiting device, door body assembly and carrier

Abstract

The utility model relates to the field of carrier accessories, and discloses a limiting device, a door body assembly and a carrier. The limiting device comprises a limiting arm rotationally connected with one of the door body and the side wall, and tooth structures distributed in the extending direction of the limiting arm are arranged on the two sides of the limiting arm; the mounting assembly is connected with the other one of the door body and the side wall; the first gear and the second gear are rotationally connected with the mounting assembly and are engaged with the tooth structures on the two sides of the limiting arm correspondingly; the damping assembly is arranged on the mounting assembly and used for providing rotation damping for at least one of the first gear and the second gear. Due to continuous distribution of the tooth structures, the gear can be sequentially meshed with the multiple teeth in the rotating process, the meshing point of each tooth can serve as a potential stopping point, and therefore the number of stopping points of the door body can be increased through the design of the tooth structures. In addition, the damping assembly provides rotation resistance to hinder the movement of the door body, so that the door body can stably stay at any meshing point position.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of carrier accessories, and particularly relates to a limiting device, a door body assembly and a carrier. BACKGROUND

[0002] The main function of the door limiter is to limit the opening angle of the door body, prevent the door body from being damaged due to excessive opening, and ensure that the door body can remain stable in different opening states, facilitating passengers to get on and off the vehicle and loading and unloading goods.

[0003] In the related art, the limiter mainly comprises a limiting component and a limiting arm. One end of the limiting arm is rotatably connected to the vehicle body, and a limiting pit is arranged on the limiting arm. The limiting component is arranged on the door body and is used for limiting cooperation with the limiting pit in the extension direction of the limiting arm.

[0004] However, the existing limiters generally have the problem of few gears, which leads to a lack of enough intermediate stopping points for the vehicle door during opening. For example, when the user needs to partially open the vehicle door, the ideal positioning effect cannot be achieved. SUMMARY

[0005] Therefore, the utility model provides a limiting device, a door body assembly and a carrier to solve or improve the problem of few gears of the limiter.

[0006] In a first aspect, the utility model provides a limiting device for being arranged between a door body and a side wall, comprising:

[0007] A limiting arm is rotatably connected to one of the door body and the side wall, and both sides of the limiting arm are provided with a tooth structure distributed along the extension direction of the limiting arm.

[0008] An installation component is connected to the other one of the door body and the side wall.

[0009] First and second gears are rotatably connected to the installation component and are respectively engaged with the tooth structure on both sides of the limiting arm.

[0010] A damping component is arranged on the installation component and is used for providing rotational damping for at least one of the first and second gears.

[0011] In an optional embodiment, the damping component comprises:

[0012] A first sliding block is slidably connected to the installation component.

[0013] A first cam is connected to the first gear on the same shaft.

[0014] A first elastic member is arranged on the mounting assembly, and the first elastic member abuts against the first slider and is used to drive the first slider to slide towards the first cam.

[0015] In an alternative embodiment, the damping assembly further comprises:

[0016] A second slider is in sliding connection with the mounting assembly, and a sliding path of the second slider is collinear with a sliding path of the first slider.

[0017] A second cam is coaxially connected with the second gear.

[0018] The first elastic member abuts against the second slider and the first slider respectively, and the first elastic member is further used to drive the second slider to slide towards the second cam.

[0019] In an alternative embodiment, the damping assembly further comprises:

[0020] A second slider is in sliding connection with the mounting assembly.

[0021] A second cam is coaxially connected with the second gear.

[0022] A second elastic member is arranged on the mounting assembly, and the second elastic member abuts against the second slider and is used to drive the second slider to slide towards the second cam.

[0023] In an alternative embodiment, the mounting assembly comprises:

[0024] A connecting seat is used to connect with the door body or the side wall, and the connecting seat is provided with a through hole through which the limiting arm passes, and the connecting seat is provided with a mounting portion.

[0025] A mounting seat is arranged on opposite sides of the limiting arm with respect to the mounting portion respectively, and the mounting seat is detachably connected with the connecting seat.

[0026] The first gear and the second gear are rotatably installed between the mounting seat and the mounting portion, and the damping assembly is arranged on the mounting seat.

[0027] In an alternative embodiment, the mounting seat comprises:

[0028] A housing is provided with an opening on a side away from the limiting arm, the damping assembly is arranged in the housing, and the first gear and the second gear are arranged outside the housing.

[0029] A cover plate closes the opening, and the cover plate is detachably connected with the connecting seat.

[0030] In an alternative embodiment, the limiting arm has a connecting end and a free end along the extending direction of the limiting arm, the connecting end is used to connect with the door body or the side wall, and the free end is provided with a limiting part.

[0031] The mounting assembly further comprises a blocking piece arranged on one side of the mounting seat close to the free end and connected with the connecting seat, and the blocking piece limits the limiting part along the extending direction of the limiting arm.

[0032] In an alternative embodiment, the limiting device further comprises a shell provided with a mounting opening, the mounting assembly is connected with the shell and covers the mounting opening, the damping assembly is arranged inside the shell, and the limiting arm passes through the mounting assembly and extends into the shell.

[0033] In a second aspect, the utility model further provides a door body assembly comprising a door body and the limiting device as described above.

[0034] In a third aspect, the utility model further provides a carrier comprising the limiting device as described above or the door body assembly as described above.

[0035] The limiting device provided by the utility model has the advantages that, due to the continuous distribution of the tooth structure, the gear can be engaged with multiple teeth in turn during rotation, and each tooth engagement point can be used as a potential stop point, so that the design of the tooth structure can increase the number of door body stop points.

[0036] In addition, the damping assembly provides rotation resistance for at least one of the first gear and the second gear, which hinders the rotation of the gear and indirectly hinders the movement of the door body, so that the resistance provided by the damping assembly can offset external forces such as wind force, and the door body can be stably stopped at any engagement point position.

[0037] In addition, the transmission mode of the double-sided gear cooperating with the tooth structure in the embodiment can limit the limiting arm between the first gear and the second gear, so that the limiting arm is always engaged with the first gear and the second gear, the limiting arm is prevented from disengaging from the first gear or the second gear, the stress on both sides of the limiting arm is balanced, wear and jamming caused by uneven stress are reduced, and the service life of the device is prolonged.

[0038] The door body assembly and the carrier provided by the utility model comprise the limiting device provided by the utility model, and therefore have all the advantages of the limiting device. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0040] Figure 1 The structural schematic diagram of the limiting device provided by the embodiment of the present application is shown in the figure.

[0041] Figure 2 The structural schematic diagram of the limiting device provided by the embodiment of the present application is shown in the figure. Figure 1

[0042] Figure 3 The structural schematic diagram of the damping assembly provided by the embodiment of the present application is installed in the mounting assembly.

[0043] Figure 4 The structural schematic diagram of the first gear and the second gear provided by the embodiment of the present application is engaged with the limiting arm.

[0044] Figure 5 The structural schematic diagram of the mounting assembly provided by the embodiment of the present application is shown in the figure.

[0045] Figure 6 The structural schematic diagram of the damping assembly provided by the embodiment of the present application is installed in the housing.

[0046] Figure 7 The structural schematic diagram of another damping assembly provided by the embodiment of the present application is shown in the figure.

[0047] Figure 8 The structural schematic diagram of another damping assembly provided by the embodiment of the present application is shown in the figure.

[0048] Explanation of reference signs:

[0049] 1, limiting arm; 101, tooth structure; 102, connecting end; 103, free end; 104, limiting part; 2, mounting assembly; 201, connecting seat; 2011, mounting part; 202, mounting seat; 2021, housing; 2021a, bottom plate; 2021b, cylinder; 2022, cover plate; 2022a, connecting protrusion; 203, blocking piece; 204, through hole; 3, first gear; 4, second gear; 5, damping assembly; 501, first sliding block; 502, first cam; 503, first elastic member; 504, second sliding block; 505, second cam; 506, second elastic member; 507, first pivot; 508, second pivot; 509, first adjusting block; 510, second adjusting block; 6, shell. ​DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0051] In the related art, the stopper mainly consists of a limiting component and a limiting arm and the like. One end of the limiting arm is rotationally connected with a vehicle body, and two or three limiting pits are arranged on the limiting arm. The limiting component is arranged on a door body and is used for limiting cooperation with the limiting pits in the extension direction of the limiting arm.

[0052] However, the existing stopper generally has the problem of few gears, which leads to lack of enough intermediate stopping points for the door during opening, for example, when the user needs to partially open the door, the ideal positioning effect cannot be achieved.

[0053] In order to solve or improve the problem of few gears of the stopper in the related art, the present application provides a limiting device, a door assembly and a carrier.

[0054] The embodiments of the present application will be described below with reference to the drawings. Figures 1 to 8 The limiting device provided in the embodiments of the present application will be described.

[0055] Specifically, the limiting device is arranged between the door body and the side wall, that is, the limiting device is connected with the door body and the side wall respectively. Alternatively, the door body and the side wall are rotationally connected.

[0056] In the present embodiment, the limiting device includes a limiting arm 1, a mounting component 2, a first gear 3, a second gear 4 and a damping component 5.

[0057] The limiting arm 1 is rotationally connected with one of the door body and the side wall, and the limiting arm 1 is provided with a tooth structure 101 distributed along the extension direction of the limiting arm 1 on both sides of the limiting arm 1, or it can be understood that the limiting arm 1 is provided with a rack structure on both sides. Further, the rotation axis of the limiting arm 1 is parallel to the rotation axis of the door body.

[0058] The mounting component 2 is connected with the other one of the door body and the side wall. For the convenience of description, the present document will take the limiting arm 1 rotationally connected with the side wall and the mounting component 2 connected with the door body as an example for introduction, and it can be understood that the opposite is also applicable.

[0059] The first gear 3 and the second gear 4 are both rotationally connected to the mounting assembly 2, and the first gear 3 and the second gear 4 are respectively engaged with the tooth structure 101 on both sides of the limiting arm 1, that is, the first gear 3 is engaged with the tooth structure 101 on one side of the limiting arm 1, and the second gear 4 is engaged with the tooth structure 101 on the other side of the limiting arm 1. Further, the rotation axis of the first gear 3 and the rotation axis of the second gear 4 are both parallel to the rotation axis of the limiting arm 1.

[0060] The damping assembly 5 is arranged on the mounting assembly 2, and the damping assembly 5 is used to provide rotational damping for at least one of the first gear 3 and the second gear 4, that is, the damping assembly 5 is used to provide rotational resistance for at least one of the first gear 3 and the second gear 4 to hinder the rotation of at least one of the first gear 3 and the second gear 4.

[0061] In this embodiment, during the opening of the door body, the door body driving mounting assembly 2 moves along the limiting arm 1. During the movement of the mounting assembly 2 along the limiting arm 1, the first gear 3 and the second gear 4 are both engaged with the corresponding tooth structure 101 to rotate.

[0062] During the rotation of the first gear 3 and the second gear 4, the damping assembly 5 provides damping for at least one of the first gear 3 and the second gear 4 to hinder the rotation of at least one of the first gear 3 and the second gear 4, thereby providing damping for the further opening or closing of the door body, so as to keep the door body at the current position.

[0063] In this way, due to the continuous distribution of the tooth structure 101, the gear will be engaged with multiple teeth in turn during rotation, and each tooth engagement point can serve as a potential stop point, so the design of the tooth structure 101 can increase the number of door body stop points.

[0064] In addition, the damping assembly 5 provides rotational resistance for at least one of the first gear 3 and the second gear 4, which hinders the rotation of the gear, thereby indirectly hindering the movement of the door body. When the door body is subjected to external forces (such as wind force), the resistance provided by the damping assembly 5 can offset these external forces, allowing the door body to remain stably at any engagement point position.

[0065] Furthermore, in this embodiment, the transmission mode of the bilateral gear cooperating with the tooth structure 101 can limit the limiting arm 1 between the first gear 3 and the second gear 4, so that the limiting arm 1 always remains engaged with the first gear 3 and the second gear 4, avoiding disengagement of the limiting arm 1 from the first gear 3 or the second gear 4, and making the stress on both sides of the limiting arm 1 balanced, reducing wear and jamming caused by uneven stress, and prolonging the service life of the device.

[0066] Optionally, the first gear 3 and the second gear 4 are the same. In this way, the design cost and processing cost of the limiting device can be simplified.

[0067] Reference Figure 3 and Figure 8 As shown in the figure, in some embodiments of the utility model, the damping assembly 5 includes a first sliding block 501, a first cam 502 and a first elastic member 503.

[0068] The first sliding block 501 is slidingly connected with the mounting assembly 2. For example, the mounting assembly 2 is provided with a guide groove, and the first sliding block 501 is arranged in the guide groove.

[0069] The first cam 502 is coaxially connected with the first gear 3. The first cam 502 is connected with the first gear 3 and can rotate with the first gear 3. For example, the first gear 3 is arranged on a first pivot 507, the first pivot 507 is rotationally connected with the mounting assembly 2, and the first cam 502 is connected with the first pivot 507. The first cam 502 is located on the sliding path of the first sliding block 501, so that the first sliding block 501 can abut against the outer circumferential surface of the first cam 502 during sliding.

[0070] The first elastic member 503 is arranged on the mounting assembly 2, and the first elastic member 503 abuts against the first sliding block 501 and is used to drive the first sliding block 501 to slide towards the first cam 502, that is, the first elastic member 503 is used to drive the first sliding block 501 to abut against the first cam 502. For example, one end of the first elastic member 503 abuts against the mounting assembly 2, and the other end abuts against the first sliding block 501.

[0071] In this embodiment, during the running of the mounting assembly 2 along the limiting arm 1, the first gear 3 drives the first cam 502 to rotate, and the far rest point and the near rest point of the first cam 502 alternately contact the first sliding block 501, so that the compression amount of the first elastic member 503 can be changed, so that the first elastic member 503 provides alternating resistance for the first gear 3.

[0072] For example, when the far rest point of the first cam 502 contacts the first sliding block 501, the first sliding block 501 is lifted to a certain height, so that the compression amount of the first elastic member 503 increases, thereby generating a larger damping force. When the near rest point contacts the first sliding block 501, the compression amount of the first elastic member 503 decreases, and the damping force also decreases.

[0073] In this way, during the process that the user opens the door body, the resistance periodically changes, which brings regular feedback to the user. This one loose and one tight feedback enables the user to clearly feel different "gears" during the process of opening the door body, so as to realize the gear feeling of the door body during the opening and closing process.

[0074] In addition, the gear feeling can provide a clear operation prompt for the user, that is, each change of the resistance is a "node", so that the user can determine the change of the resistance and stop the door body in a state with relatively large resistance (for example, a state where the far rest point of the first cam 502 is in contact with the first slider 501), so that the damping assembly 5 can provide greater resistance to the door body, and the door body is more stably kept at the stop point.

[0075] Optionally, the first elastic member 503 is a spring, including but not limited to a coil spring or an air spring.

[0076] Reference Figure 8 Optionally, the limiting device further includes a first adjusting block 509. The first adjusting block 509 is arranged on the mounting assembly 2, one end of the first elastic member 503 is in contact with the first adjusting block 509, and the other end is in contact with the first slider 501, that is, the first elastic member 503 is arranged in compression between the first adjusting block 509 and the first slider 501, so as to drive the first slider 501 to slide towards the first cam 502.

[0077] Further, the first adjusting block 509 is arranged on the mounting assembly 2 in a position adjustable along the sliding path direction of the first slider 501.

[0078] In this embodiment, by adjusting the position of the first adjusting block 509, the pre-compression amount of the first elastic member 503 can be adjusted, so as to adjust the damping force provided by the damping assembly 5, so that the door body meets the requirements of stable stopping or easy opening and closing.

[0079] In addition, when the elastic force of the first elastic member decreases or the cam is worn, the pre-compression amount of the first elastic member 503 can be increased by adjusting the first adjusting block 509, so as to solve the problem of insufficient damping force. In this way, the first elastic member or the cam does not need to be replaced, and the service life of the limiting device can be prolonged.

[0080] Optionally, the first adjusting block 509 is arranged on the mounting assembly 2 in a position adjustable along the sliding path direction of the first slider 501.

[0081] In this embodiment, by rotating the threaded member, the first adjusting block 509 can be driven to slide along the sliding path direction of the first slider 501 through the threaded member, which is simple to operate and can steplessly adjust the pre-compression amount of the first elastic member 503.

[0082] Reference Figure 6 In some embodiments provided by the utility model, the damping assembly 5 further includes a second slider 504 and a second cam 505.

[0083] The second slider 504 is in sliding connection with the mounting assembly 2. For example, the second slider 504 and the first slider 501 are arranged in the guide groove of the mounting assembly 2. The sliding path of the second slider 504 is collinear with the sliding path of the first slider 501.

[0084] The second cam 505 is coaxially connected with the second gear 4. The second cam 505 is connected with the second gear 4 and can rotate with the second gear 4. For example, the second gear 4 is arranged on the second pivot 508, the second pivot 508 is in rotational connection with the mounting assembly 2, and the second cam 505 is connected with the second pivot 508. The second cam 505 is located on the sliding path of the second slider 504, so that the second slider 504 can abut against the outer circumferential surface of the second cam 505 during sliding.

[0085] The first elastic member 503 abuts against the second slider 504 and the first slider 501 respectively, and the first elastic member 503 is also used to drive the second slider 504 to slide towards the second cam 505. That is, the first elastic member 503 is arranged between the second slider 504 and the first slider 501, and drives the first slider 501 and the second slider 504 to abut against the first cam 502 and the second cam 505 respectively.

[0086] In this embodiment, on the one hand, the first elastic member 503 drives the first slider 501 and the second slider 504 to abut against the first cam 502 and the second cam 505 respectively, so that more complex damping adjustment can be achieved.

[0087] For example, during the running of the mounting assembly 2 along the limiting arm 1, when the remote rest point of the first cam 502 abuts against the first slider 501, the remote rest point of the second cam 505 is in a disengaged state with the second slider 504. Similarly, when the remote rest point of the second cam 505 abuts against the second slider 504, the remote rest point of the first cam 502 is in a disengaged state with the first slider 501.

[0088] In this way, during the rotation of the first gear 3 and the second gear 4, the remote rest point of the first cam 502 and the remote rest point of the second cam 505 alternately compress the first elastic member 503, which is equivalent to increasing a gear ratio by one, that is, increasing a "catch point" by one, so that the opening angle of the door body can be more finely controlled to meet the diversified use requirements of users.

[0089] Alternatively, during the running of the mounting assembly 2 along the limiting arm 1, when the remote rest point of the first cam 502 abuts against the first slider 501, the remote rest point of the second cam 505 abuts against the second slider 504.

[0090] In this way, the door body is at any one gear position or "card point", which can be compressed by the first cam 502 and the second cam 505 together first elastic piece 503, so that the first elastic piece 503 has a greater compression, so as to provide greater resistance for the door body, so that the door body can be stably kept at the stop point.

[0091] On the other hand, the first elastic piece 503 acts on the first slider 501 and the second slider 504 at the same time, and the elastic force is dispersed to the two sliders, so that the entire damping assembly 5 is more uniform in stress when working, which can reduce the stress and stress concentration of the single slider and cam, reduce the risk of deformation, wear or damage of the component due to excessive local stress, thereby improving the structural stability and reliability of the entire damping assembly 5, and prolonging its service life.

[0092] In another aspect, the design of the two sliders and the two cams increases the redundancy of the limiting device. For example, even if one of the sliders or cams is damaged or abnormal, the other can still ensure the basic function of the damping assembly 5 to a certain extent, so that the movement of the door body can still be controlled to a certain extent, and the entire damping system will not be completely disabled due to a single component problem, improving the anti-interference ability and fault tolerance of the limiting device.

[0093] Of course, the first cam 502 and the second cam 505 are not limited to sharing the first elastic piece 503.

[0094] For example, referring to Figure 7 and Figure 8 As shown, in some embodiments provided by the utility model, the damping assembly 5 further comprises a second slider 504, a second cam 505 and a second elastic piece 506.

[0095] Among them, the second slider 504 is in sliding connection with the mounting assembly 2. For example, the mounting assembly 2 is provided with a containing groove for containing the second slider 504, and the second slider 504 is in sliding fit with the containing groove.

[0096] The second cam 505 is coaxially connected with the second gear 4. For example, the second cam 505 is connected with the second gear 4 and located on the sliding path of the second slider 504. For example, the second gear 4 is arranged on the second pivot 508, the second pivot 508 is in rotary connection with the mounting assembly 2, and the second cam 505 is connected with the second pivot 508. The second cam 505 is located on the sliding path of the second slider 504, so that the second slider 504 can abut the outer peripheral surface of the second cam 505 during sliding.

[0097] The second elastic piece 506 is arranged on the mounting assembly 2, the second elastic piece 506 abuts the second slider 504, and is used to drive the second slider 504 to slide towards the second cam 505.

[0098] In this embodiment, more complex damping adjustment can be achieved by setting the first cam 502 and the second cam 505. The principle here is the same as that in the above embodiment, so it will not be described again.

[0099] In addition, the first cam 502 and the second cam 505 are respectively matched with the first elastic element 503 and the second elastic element 506. The operation of the first cam 502 and the first elastic element 503 is independent of the operation of the second cam 505 and the second elastic element 506, and will not interfere with each other. It can also reduce the load on the first elastic element 503 and avoid stress concentration or premature cyclic fatigue in the first elastic element 503.

[0100] In addition, the cooperation of the first elastic element 503 and the second elastic element 506 can improve the redundancy of the limiting device. For example, even if the first elastic element 503 is damaged, the second elastic element 506 and the second cam 505 can still work normally, providing a certain damping for the door body, so that the door body can still maintain a certain degree of controllability.

[0101] refer to Figure 7 and Figure 8 As shown, optionally, the sliding path of the second slider 504 intersects with or is parallel to the sliding path of the first slider 501.

[0102] Optionally, the limiting device further includes a second adjusting block 510. The second adjusting block 510 is disposed on the mounting assembly 2, one end of the second elastic member 506 abuts against the second adjusting block 510, and the other end abuts against the second slider 504. That is, the second elastic member 506 is compressed and disposed between the second adjusting block 510 and the second slider 504 to drive the second slider 504 to slide towards the second cam 505.

[0103] Furthermore, the position of the second adjusting block 510 is adjustable on the mounting assembly 2 along the sliding path direction of the second slider 504.

[0104] In this embodiment, by adjusting the position of the second adjusting block 510, the pre-compression amount of the second elastic element 506 can be adjusted to adjust the magnitude of the damping force provided by the damping component 5, so that the door body meets the requirements of stable stopping or easy opening and closing.

[0105] Furthermore, if the elastic force of the second elastic element 506 decreases or the cam wears down, resulting in a decrease in damping force, the pre-compression of the second elastic element 506 can be increased by adjusting the second adjusting block 510. This eliminates the need to replace the second elastic element 506 or the cam, thus extending the service life of the limiting device.

[0106] Optionally, the second adjusting block 510 is slidably arranged on the mounting assembly 2. The limiting device comprises a threaded member which is threadedly connected with the mounting assembly 2, for example, the mounting seat 202 of the mounting assembly 2. The threaded member is arranged on the side of the second adjusting block 510 which is away from the second elastic member 506, and the threaded member is abutted with or rotatably connected with the second adjusting block 510.

[0107] In the embodiment, by screwing the threaded member, the second adjusting block 510 can be driven to slide along the sliding path direction of the second sliding block 504 by the threaded member, which is simple to operate and can steplessly adjust the pre-compression amount of the second elastic member 506.

[0108] Reference Figure 5 and Figure 6 As shown in FIGS. 1-3, in some embodiments of the utility model, the mounting assembly 2 comprises a connecting seat 201 and a mounting seat 202.

[0109] The connecting seat 201 is used to be connected with a door body or a side wall, for example, the connecting seat 201 is connected with the door body through a connecting member. The connecting seat 201 is provided with a through hole 204 through which the limiting arm 1 passes, that is, the connecting seat 201 is sleeved on the outer side of the limiting arm 1. The connecting seat 201 is provided with a mounting portion 2011.

[0110] The mounting seat 202 and the mounting portion 2011 are arranged on the opposite sides of the limiting arm 1. The mounting seat 202 is detachably connected with the connecting seat 201.

[0111] The first gear 3 and the second gear 4 are rotatably arranged between the mounting seat 202 and the mounting portion 2011, so that the mounting seat 202 and the mounting portion 2011 jointly support the first gear 3 and the second gear 4.

[0112] For example, the first gear 3 is arranged on the first pivot shaft 507, and the two ends of the first pivot shaft 507 are respectively connected with the mounting seat 202 and the mounting seat 202. The second gear 4 is arranged on the second pivot shaft 508, and the two ends of the second pivot shaft 508 are respectively connected with the mounting seat 202 and the mounting seat 202.

[0113] The damping assembly 5 is arranged on the mounting seat 202, for example, the mounting seat 202 is provided with a mounting groove, and the damping assembly 5 is arranged in the mounting groove.

[0114] In this embodiment, the mounting base 202 is connected to the connecting base 201, and the mounting base 202 and the mounting part 2011 on the connecting base 201 are arranged opposite each other, so that the first gear 3 and the second gear 4 can be arranged between the mounting base 202 and the mounting part 2011, thereby providing stable support and rotation foundation for the first gear 3 and the second gear 4, avoiding the pivot deformation of the first gear 3 and the second gear 4, ensuring good meshing between the gears and the tooth structure 101 on both sides of the limiting arm 1, and reducing transmission errors and wear caused by unstable gear installation.

[0115] Furthermore, the mounting base 202 is positioned on the side of the limiting arm 1 away from the mounting part 2011 and is arranged opposite to it, with the first gear 3 and the second gear 4 installed between them. This makes full use of the space around the limiting arm 1, resulting in a compact structure for the entire mounting assembly 2 without occupying excessive space. At the same time, the damping assembly 5 is mounted on the mounting base 202, which further optimizes the spatial layout, making the arrangement of various components orderly and facilitating overall installation within the limited space of the door or side panel.

[0116] In addition, the damping component 5 is mounted on the mounting base 202, which is detachably connected to the connecting base 201. When the damping component 5 is damaged, the mounting base 202 can be removed from the connecting base 201 and the damping component 5 can be replaced without disassembling the connecting base 201, thus reducing the difficulty of disassembly and assembly. Furthermore, there is no need to replace the connecting base 201, thus reducing maintenance costs.

[0117] refer to Figure 5 and Figure 6 As shown, in some embodiments provided by this utility model, the mounting base 202 includes a housing 2021 and a cover plate 2022.

[0118] The housing 2021 has an opening on the side opposite to the limiting arm 1, the damping component 5 is located inside the housing 2021, and the first gear 3 and the second gear 4 are both located outside the housing 2021.

[0119] Optionally, the first pivot 507 of the first gear 3 extends into the housing 2021 and is connected to the first cam 502, and / or the second pivot 508 of the second gear 4 extends into the housing 2021 and is connected to the second cam 505. Optionally, the internal space of the housing 2021 can form a receiving groove, allowing the first slider 501 and / or the second slider 504 to slide within the receiving groove.

[0120] The cover plate 2022 closes the opening. The cover plate 2022 is detachably connected to the connecting seat 201.

[0121] In the embodiment, the damping assembly 5 is arranged in the shell 2021, and the opening of the shell 2021 is closed by the cover plate 2022. On one hand, the cover plate 2022 can limit the movable parts (for example, elastic members and sliding blocks) of the damping assembly 5, so as to prevent the movable parts from being lost and ensure the reliability of the limiting device. On the other hand, the cover plate 2022 can protect the damping assembly 5 from being eroded by impurities, thereby prolonging the service life of the damping assembly 5.

[0122] The cover plate 2022 is detachably connected with the connecting seat 201, so that the mounting seat 202 and the connecting seat 201 have a stable connection relationship, and the mounting seat 202 and the connecting seat 201 are prevented from being separated. Meanwhile, when the damping assembly 5 is maintained or replaced, the cover plate 2022 can be detached from the connecting seat 201.

[0123] Optionally, the surface of the cover plate 2022 away from the shell 2021 is provided with a connecting protrusion 2022a. The connecting protrusion 2022a is provided with a mounting hole penetrating through the connecting protrusion 2022a along the extension direction of the limiting arm 1. The limiting device further comprises a threaded connecting piece penetrating through the mounting hole and being threadedly connected with the connecting seat 201.

[0124] In this way, the threaded connecting piece can be arranged in the extension direction of the limiting arm 1, so that the space of the damping assembly 2 in the extension direction of the limiting arm 1 can be fully utilized.

[0125] Further, the cover plate 2022 is detachably connected with the shell 2021. In this way, when the damping assembly 5 needs to be maintained, repaired or replaced, the cover plate 2022 only needs to be detached, and then the damping assembly 5 in the shell 2021 can be directly operated.

[0126] Optionally, the cover plate 2022 is connected with the shell 2021 by a threaded fastener. Alternatively, the cover plate 2022 and the shell 2021 are connected by a buckle. Of course, the cover plate 2022 and the shell 2021 can also be adhesively connected.

[0127] Of course, the cover plate 2022 can also be directly buckled on the shell 2021. As shown in FIGS. 2, 3 and 4, since the shell 2021 is located between the cover plate 2022 and the limiting arm 1, the shell 2021 will not be separated from the cover plate 2022 under the limiting action of the limiting arm 1. Figure 2 Figure 3 Figure 5

[0128] Optionally, the shell 2021 comprises a bottom plate 2021a and a cylinder 2021b.

[0129] The cylinder 2021b is arranged on the side of the bottom plate 2021a away from the limiting arm 1, and the bottom plate 2021a and the cylinder 2021b are detachably connected. ​​​

[0130] In this way, the damping assembly can be protected by the shell 2021, and when the damping assembly in the shell 2021 is installed, disassembled or maintained, the cylinder 2021b can be disassembled to expose the damping assembly, so that the operator can more easily access the damping assembly in the shell 2021, and the operation difficulty is reduced.

[0131] Optionally, the bottom plate 2021a and the cylinder 2021b can be connected by a buckle connection or a threaded connection.

[0132] In some embodiments of the present application, the limiting arm 1 has a connecting end 102 and a free end 103 along the extension direction of the limiting arm 1, the connecting end 102 is used to connect with the door body or the side wall, and the free end 103 is provided with a limiting part 104.

[0133] Further, the mounting assembly 2 further comprises a blocking piece 203. The blocking piece 203 is arranged on one side of the mounting seat 202 close to the free end 103 and connected with the connecting seat 201, and the blocking piece 203 is used to limit the limiting part 104 along the extension direction of the limiting arm 1.

[0134] In the embodiment, the blocking piece 203 is arranged on the connecting seat 201 to limit the limiting part 104 of the free end of the limiting arm 1, which can avoid the limiting arm 1 from completely separating from the mounting assembly 2, and improve the stability and reliability of the limiting device as a whole.

[0135] By arranging the blocking piece 203 on the side of the mounting seat 202 close to the free end, the blocking piece 203 can form a protective effect on the mounting seat 202, and the limiting part 104 can avoid impacting the mounting seat 202, so as to ensure the safety of the mounting seat 202 and the damping assembly 5 on the mounting seat 202, and prolong the service life of the mounting seat 202 and the damping assembly 5.

[0136] Optionally, the blocking piece 203 is provided with a through hole 204 for the limiting arm 1 to pass through, that is, the blocking piece 203 is sleeved on the outside of the limiting arm 1.

[0137] Optionally, the outside of at least one of the connecting end 102 and the free end 103 of the limiting arm 1 is provided with a plastic coating layer to improve the structural strength and corrosion resistance of the two ends of the limiting arm 1.

[0138] In some embodiments of the present application, the limiting device further comprises a housing 6.

[0139] The housing 6 is provided with a mounting opening, and the mounting assembly 2 is connected with the housing 6 and covers the mounting opening. For example, the connecting seat 201 of the mounting assembly 2 is connected with the housing 6 and covers the mounting opening.

[0140] The damping component 5 is disposed inside the housing 6. The limiting arm 1 passes through the mounting component 2 and extends into the housing 6, that is, the limiting arm 1 passes through the connecting seat 201 and extends into the housing 6.

[0141] In this embodiment, by providing a housing 6 and arranging the damping component 5 inside the housing 6, and by having the mounting component 2 cover the mounting opening of the housing 6, impurities can be prevented from entering the housing 6 and damaging the gears and the damping component 5, thereby extending the service life of the limiting device.

[0142] This utility model embodiment also provides a door assembly.

[0143] Specifically, the door assembly includes the door body and the limiting device as described above.

[0144] It should be noted that the door assembly includes a limiting device, and thus includes all the advantages of the limiting device mentioned above, so it will not be elaborated further.

[0145] This utility model also provides a vehicle in its embodiments.

[0146] Specifically, the vehicle includes the limiting device as described above or the door assembly as described above.

[0147] It should be noted that the vehicle includes a limiting device, and therefore also includes all the advantages of the limiting device mentioned above, so it will not be elaborated further.

[0148] Furthermore, the vehicles described in this application include, but are not limited to, vehicles and aircraft. The vehicles may be new energy vehicles or fuel-powered vehicles.

[0149] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A limiting device, characterized in that, For installation between the door body and the side panel, including: A limiting arm (1) is rotatably connected to one of the door body and the side panel. Both sides of the limiting arm (1) are provided with tooth structures (101) distributed along the extension direction of the limiting arm (1). Install component (2), which is connected to the other of the door body and the side panel; The first gear (3) and the second gear (4) are both rotatably connected to the mounting assembly (2), and both mesh with the tooth structure (101) on both sides of the limiting arm (1); A damping assembly (5) is disposed on the mounting assembly (2) and is used to provide rotational damping for at least one of the first gear (3) and the second gear (4).

2. The limiting device according to claim 1, characterized in that, The damping component (5) includes: The first slider (501) is slidably connected to the mounting component (2); The first cam (502) is coaxially connected to the first gear (3); A first elastic element (503) is disposed on the mounting assembly (2). The first elastic element (503) abuts against the first slider (501) and is used to drive the first slider (501) to slide towards the first cam (502).

3. The limiting device according to claim 2, characterized in that, The damping component (5) also includes: The second slider (504) is slidably connected to the mounting component (2), and the sliding path of the second slider (504) is collinear with the sliding path of the first slider (501). The second cam (505) is coaxially connected to the second gear (4); The first elastic element (503) abuts against the second slider (504) and the first slider (501), and the first elastic element (503) is also used to drive the second slider (504) to slide towards the second cam (505).

4. The limiting device according to claim 2, characterized in that, The damping component (5) also includes: The second slider (504) is slidably connected to the mounting component (2); The second cam (505) is coaxially connected to the second gear (4); A second elastic element (506) is disposed on the mounting assembly (2). The second elastic element (506) abuts against the second slider (504) and is used to drive the second slider (504) to slide towards the second cam (505).

5. The limiting device according to any one of claims 1-4, characterized in that, The installation component (2) includes: A connecting seat (201) is used to connect with the door body or the side panel. The connecting seat (201) is provided with a through opening (204) for the limiting arm (1) to pass through. The connecting seat (201) is provided with a mounting part (2011). The mounting base (202) and the mounting part (2011) are respectively provided on the opposite sides of the limiting arm (1), and the mounting base (202) and the connecting base (201) are detachably connected; The first gear (3) and the second gear (4) are rotatably mounted between the mounting base (202) and the mounting part (2011), and the damping component (5) is disposed on the mounting base (202).

6. The limiting device according to claim 5, characterized in that, The mounting base (202) includes: The housing (2021) has an opening on the side opposite to the limiting arm (1), the damping assembly (5) is located inside the housing (2021), and the first gear (3) and the second gear (4) are both located outside the housing (2021). A cover plate (2022) closes the opening, and the cover plate (2022) is detachably connected to the connecting seat (201).

7. The limiting device according to claim 5, characterized in that, Along the extending direction of the limiting arm (1), the limiting arm (1) has a connecting end (102) and a free end (103), the connecting end (102) is used to connect with the door body or the side wall, and the free end (103) is provided with a limiting part (104); The mounting assembly (2) further includes a partition (203), which is disposed on the side of the mounting base (202) near the free end (103) and connected to the connecting base (201). The partition (203) limits the limiting part (104) along the extension direction of the limiting arm (1).

8. The limiting device according to any one of claims 1-4, characterized in that, The limiting device also includes a housing (6), the housing (6) is provided with an installation port, the installation component (2) is connected to the housing (6) and covers the installation port, the damping component (5) is disposed inside the housing (6), and the limiting arm (1) passes through the installation component (2) and extends into the housing (6).

9. A door assembly, characterized in that, It includes the door body and the limiting device as described in any one of claims 1-8.

10. A vehicle, characterized in that, Includes the limiting device as described in any one of claims 1-8 or the door assembly as described in claim 9.

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