Back door side limiting assembly and vehicle

Abstract

The application relates to a back door side limiting assembly and a vehicle, which comprises a back door side limiting movable block, the back door side limiting movable block is provided with a back door limiting surface, the back door limiting surface is used for cooperating with a vehicle body side limiting block to limit; a driving mechanism is connected to the back door side limiting movable block, and the driving mechanism is configured to drive the back door side limiting movable block to move towards a side away from or close to the vehicle body limiting block. Through the movement of the back door side limiting movable block towards the side away from or close to the vehicle body limiting block, even if the precision of the body-in-white during manufacturing and installation is not very accurate, the back door limiting surface can be moved to the position cooperating with the vehicle body side limiting block through the moving mode, and the technical problem that the manufacturing and installation precision of the body-in-white and the installation precision of the limiting block are both difficult to control in the related art is solved, so that the gap between the two limiting blocks in the final vehicle can be too large or too close.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, specifically to a tailgate side limiting component and a vehicle. Background Technology

[0002] The tailgate limiting device can provide a certain buffer for the tailgate of a car, absorb the vibration generated during vehicle operation, and adjust the surface gap between the tailgate and the side panel of the car.

[0003] When the gap between the tailgate side limiting block and the vehicle body side limiting block in the tailgate limiting device is too large, the two limiting blocks may knock against each other during driving because they do not contact each other. When the tailgate side limiting block and the vehicle body side limiting block are too close together, the excessive interference between the two limiting devices may cause the two limiting blocks to collide and damage the limiting blocks when the tailgate is closed, or cause a rattling sound when the tailgate is opened due to the release reaction force. Normally, to ensure that the gap difference between the tailgate side limiting block and the vehicle body side limiting block is within the tolerance requirements, strict control of installation accuracy is required during the manufacturing and installation of the body-in-white and the installation of the limiting blocks. However, in actual production, it is difficult to control the manufacturing and installation accuracy of the body-in-white and the installation accuracy of the limiting blocks, resulting in the final vehicle having either an excessively large gap or an excessively tight fit between the two limiting blocks. Summary of the Invention

[0004] This application provides a tailgate side limiting component and a vehicle, which can solve the technical problem in the related technology that it is difficult to control the manufacturing and installation accuracy of the body-in-white and the installation accuracy of the limiting blocks during actual production and manufacturing, resulting in the gap between the two limiting blocks in the final vehicle being too large or the fit being too tight.

[0005] In a first aspect, embodiments of this application provide a tailgate side limiting assembly, comprising: a tailgate side limiting movable block having a tailgate limiting surface for cooperating with a vehicle body side limiting block for limiting; and a driving mechanism connected to the tailgate side limiting movable block, the driving mechanism being configured to drive the tailgate side limiting movable block to move toward a side away from or closer to the vehicle body limiting block.

[0006] In conjunction with the first aspect, in one embodiment, the tailgate side limiting assembly further includes: a tailgate fixing member, the tailgate fixing member being fixed to the side of the tailgate side limiting movable block away from the tailgate limiting surface, the tailgate fixing member having a sliding groove; the tailgate side limiting movable block further includes a connecting block, the connecting block passing through the sliding groove; the driving mechanism is connected to the connecting block, and the driving mechanism drives the connecting block to move within the sliding groove.

[0007] In conjunction with the first aspect, in one embodiment, the driving mechanism includes: a drive motor connected to an output gear; and a worm gear mounted on the side of the connecting block near the tailgate fixing member, wherein the drive motor drives the worm gear to move axially along the worm gear via the output gear.

[0008] In conjunction with the first aspect, in one embodiment, the tailgate side limiting assembly further includes a sensor start-stop device, which is used to control the drive mechanism to stop driving when it senses that the tailgate limiting surface is separated from the door side limiting block.

[0009] In conjunction with the first aspect, in one embodiment, the tailgate side limiting assembly further includes a controller, the controller being signal-connected to the drive mechanism, and the sensor start / stop device being signal-connected to the controller.

[0010] In conjunction with the first aspect, in one embodiment, the tailgate side limiting assembly further includes an extreme limiting sensor, the extreme limiting sensor being fixed to the tailgate fixing member, and the extreme limiting sensor being distributed on opposite sides of the worm gear along the axial direction of the worm gear; the extreme limiting sensor is signal-connected to the controller, the controller being used to control the drive mechanism to stop driving when the connecting block touches the extreme limiting sensor.

[0011] In conjunction with the first aspect, in one embodiment, the tailgate side limiting movable block further includes a base and a protrusion fixed to the base, and the tailgate limiting surface is disposed on the protrusion.

[0012] In conjunction with the first aspect, in one embodiment, the tailgate side limiting movable block further includes a base, the protrusion is fixed to the base, the protrusion has a cavity, the sensing start-stop element is fixed in the cavity, and the sensing start-stop element is activated when the tailgate limiting surface contacts the sensing start-stop element.

[0013] In conjunction with the first aspect, in one embodiment, the tailgate side limiting assembly further includes a screw rod, which passes through the tailgate fixing member and is fixed to the tailgate fixing member; the tailgate side limiting movable block has an elongated hole, which extends along the extension direction of the slide groove, and the screw rod passes through the elongated hole.

[0014] Secondly, embodiments of this application provide a vehicle, which includes a vehicle body and a tailgate installed on the vehicle body. The vehicle body is fixed with a vehicle body side limiting block; the tailgate is equipped with a tailgate side limiting component as described above; the vehicle also includes a controller, which is signal-connected to the drive mechanism of the tailgate side limiting component.

[0015] The beneficial effects of the technical solutions provided in this application include:

[0016] By moving the tailgate side limiting block toward the side closer to or further away from the vehicle body limiting block, the distance between the tailgate limiting surface and the vehicle body side limiting block can be adjusted. When the tailgate side limiting block moves to the corresponding position, the tailgate limiting surface and the vehicle body side limiting block cooperate to limit the movement. Even if the precision of the body-in-white manufacturing and installation is not very precise, the tailgate limiting surface can still be moved to the position to cooperate with the vehicle body side limiting block. This solves the technical problem in related technologies where the manufacturing and installation precision of the body-in-white and the installation precision of the limiting block are difficult to control, which may result in the gap between the two limiting blocks in the final vehicle being too large or the fit being too tight. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure in which the tailgate side limiting component and the vehicle body side limiting block are attached, according to an embodiment of this application.

[0019] Figure 2 An exploded view of the tailgate side limiting assembly provided in the embodiments of this application;

[0020] Figure 3 This is a schematic diagram of the structure of the vehicle body side limiting block fixed to the vehicle body according to an embodiment of this application;

[0021] Figure 4 Exploded view of the drive mechanism and inductive start-stop device provided in the embodiments of this application;

[0022] Figure 5 An exploded view of one perspective of the tailgate side limiting movable block connecting drive mechanism provided in an embodiment of this application;

[0023] Figure 6 An exploded view from another perspective of the tailgate side limiting movable block connection drive mechanism provided in the embodiments of this application;

[0024] Figure 7 A three-dimensional structural diagram of the worm gear and output gear meshing provided in an embodiment of this application;

[0025] Figure 8 An exploded view of the tailgate side limiting component provided in this application embodiment connected to the tailgate from one of the perspectives;

[0026] Figure 9 An exploded view of the tailgate side limiting component provided in this application embodiment connected to the tailgate from another perspective.

[0027] In the picture:

[0028] 1. Side limiting block for tailgate; 11. Protrusion; 111. Tailgate limiting surface; 12. Base; 121. Elongated hole; 122. Hole cover; 13. Screw; 14. Connecting block;

[0029] 2. Rear door fastener; 21. Slide rail;

[0030] 3. Side limiting block of the vehicle body; 31. Rod;

[0031] 4. Drive mechanism; 41. Drive motor; 42. Output gear; 43. Worm gear; 44. Pin;

[0032] 5. Sensor-activated start / stop device;

[0033] 6. Limit sensor;

[0034] 7. Back door;

[0035] 8. Vehicle body;

[0036] 9. Shell; 91. Nut. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0038] This application provides a tailgate side limiting component, which can solve the technical problem in the related technology that it is difficult to control the manufacturing and installation accuracy of the body-in-white and the installation accuracy of the limiting blocks during actual production, resulting in the gap between the two limiting blocks in the final vehicle being too large or the fit being too tight.

[0039] See Figure 1The diagram shows a tailgate side limiting component provided in an embodiment of this application. It may include: a tailgate side limiting movable block 1, which has a tailgate limiting surface 111 for cooperating with a vehicle body side limiting block 3 for limiting movement. It should be understood that the tailgate side limiting component can be installed on the tailgate 7, allowing the tailgate side limiting movable block 1 to move relative to the tailgate 7; and a driving mechanism 4 connected to the tailgate side limiting movable block 1, configured to drive the tailgate side limiting movable block 1 to move towards or away from the vehicle body 8 limiting block. The driving mechanism 4 can be manually controlled to open, or it can be driven mechanically or by electrical signals, or other methods.

[0040] In this embodiment, the tailgate side limiting movable block 1 moves in a direction parallel to the tailgate 7 side limiting surface, making the distance between the tailgate limiting surface 111 and the vehicle body side limiting block 3 adjustable. Even if the manufacturing and installation precision of the tailgate side limiting component or the body-in-white is not precisely controlled during manufacturing, the movable tailgate side limiting block 1 can be moved to the corresponding position according to actual needs, so that the tailgate limiting surface 111 cooperates with the vehicle body side limiting block 3 for limiting. When the vehicle is in motion, the tailgate limiting surface 111... 11 can fit together with the side limiting block 3 of the vehicle body, which can reduce abnormal noise caused by vehicle bumps during driving; before the rear door of the vehicle is opened, the tail door side limiting movable block 1 can be driven to move, so that the tail door limiting surface 111 is away from the side limiting block 3 of the vehicle body. Then, when the tail door 7 is opened, the release of reaction force can be reduced or avoided. This method solves the technical problem that the manufacturing and installation of the body-in-white and the installation accuracy of the limiting block are difficult to control in related technologies, which may result in the gap between the two limiting blocks in the final actual vehicle being too large or the fit being too tight.

[0041] In some optional embodiments, the tailgate side limiting assembly may further include: a tailgate fixing member 2, which is fixed to the side of the tailgate side limiting movable block 1 away from the tailgate limiting surface 111, and the tailgate fixing member 2 has a sliding groove 21; the tailgate side limiting movable block 1 further includes a connecting block 14, which passes through the sliding groove 21. It should be understood that the sliding groove 21 may be a through groove; the driving mechanism 4 is connected to the connecting block 14, and the driving mechanism 4 drives the connecting block 14 to move within the sliding groove 21. That is, the tailgate fixing member 2 can be closer to the tailgate 7 of the vehicle relative to the tailgate side limiting movable block 1, and the tailgate fixing member 2 and the tailgate 7 can be relatively fixed. The tailgate side limiting movable block 1 can move relative to the tailgate fixing member 2 by allowing the connecting block 14 to move within the sliding groove 21 of the tailgate fixing member 2. By setting the slide groove 21, the movement of the connecting block 14 can be made smoother.

[0042] In some optional embodiments, the drive mechanism 4 may include: a drive motor 41 connected to an output gear 42; and a worm gear 43 mounted on the side of the connecting block 14 near the tailgate fixing member 2. (See also...) Figure 6 As shown, the worm 43 can be directly or via a pin 44 mounted on the connecting block 14. Preferably, the connecting block 14 can have a protruding part and a sliding part. The size of the protruding part is larger than the size of the sliding part. A through groove communicating with the slide groove 21 can be provided on the back door fixing member 2. After the protruding part passes through the through groove, the sliding part passes into the through groove. Then, the sliding part is moved into the slide groove 21, allowing it to move within the slide groove 21. This arrangement facilitates repair when a portion of the back door side limiting movable block 1 is damaged. In this embodiment, the protruding part can have a connecting hole, and the worm 43 can be fixed in the connecting hole via a pin 44. That is, the worm 43 can rotate in the connecting hole under the action of the drive motor 41, thereby pushing the connecting block 14 to move the back door side limiting movable block 1. The drive motor 41 drives the worm 43 to move axially along the worm 43 via the output gear 42. That is, the worm 43 can have drive stripes. See [reference needed]. Figure 7 As shown, the drive stripes mesh with the output gear 42, thereby enabling the worm 43 to drive the connecting block 14 to move along the axial direction of the worm 43. In this embodiment, by having the output gear 42 mesh with the drive stripes on the worm 43 to move the connecting block 14, the movement of the tailgate side limiting movable block 1 can be made smoother, minimizing the possibility of the tailgate side limiting movable block 1 suddenly moving a large distance, which could cause excessive compression between the tailgate limiting surface 111 and the vehicle body side limiting block 3, damaging the tailgate limiting surface 111.

[0043] In some optional embodiments, the tailgate side limiting assembly further includes a sensor start-stop device 5, which is used to control the drive mechanism 4 to stop driving when it senses that the tailgate limiting surface 111 is separated from the door side limiting block. It should be understood that the sensor start-stop device 5 senses the separation of the tailgate limiting surface 111 from the door side limiting block, which may mean that the tailgate limiting surface 111 and the door side limiting block are completely separated, or it may mean that there is still a part of contact between the tailgate limiting surface 111 and the door side limiting block. However, this part of contact will not affect the cooperation between the tailgate limiting surface 111 and the door side limiting block. That is, during the opening of the tailgate 7, the tailgate limiting surface 111 and the door side limiting block will not make a popping sound due to the reaction force due to this small part of contact. In this embodiment, by setting the sensor start / stop device 5, the tailgate side limit movable block 1 can be stopped without manual monitoring after moving a certain distance. This saves manual operation and reduces the possibility of damage caused by the tailgate side limit movable block 1 moving too far. In addition, this method can make the movement distance of the tailgate side limit movable block 1 smaller. After that, the movement distance of the tailgate side limit movable block 1 when it needs to move to the tailgate limit surface 111 to fit with the door side limit block can also be smaller, saving movement time.

[0044] In some optional embodiments, the tailgate side limiting assembly further includes a controller, which is signal-connected to the drive mechanism 4, and the inductive start / stop device 5 is signal-connected to the controller. That is, the drive mechanism 4 is controlled to start and stop by the controller. In this embodiment, the controller is signal-connected to the drive motor 41 in the drive mechanism 4. The signal connection can be via an electrical signal. The signal connection between the inductive start / stop device 5 and the controller means that after the inductive start / stop device 5 transmits the acquired signal to the controller, the controller then controls the start or stop of the drive motor 41 based on the acquired signal. In some other embodiments, the inductive start / stop device 5 can also be directly signal-connected to the drive motor 41 to directly control the start and stop of the drive motor 41. Preferably, the controller can be integrated into the electric tailgate 7 controller to reduce the controller's layout space and also to establish a connection between the drive motor 41 and the tailgate 7.

[0045] In some alternative embodiments, see Figure 4As shown, the tailgate side limiting assembly further includes an extreme limiting sensor 6, which is fixed to the tailgate fixing member 2 and distributed on opposite sides of the worm gear 43 along the axial direction of the worm gear 43. The extreme limiting sensor 6 is signal-connected to the controller, which controls the drive mechanism 4 to stop driving when the connecting block 14 touches the extreme limiting sensor 6. In this embodiment, the extreme limiting sensor 6 can be a contact switch, and two extreme limiting sensors 6 are provided, distributed on opposite sides of the worm gear 43 along the axial direction of the worm gear 43. On both sides, limit sensors 6 provide further protection for the tailgate side limit block 1. In some cases, the sensor start / stop device 5 may malfunction and fail to transmit the signal to the controller in time. Even after the tailgate side limit block 1 has moved to the corresponding position, the drive motor 41 continues to operate. As the drive motor 41 continues to drive the worm gear 43 until the connecting block 14 touches the limit sensor 6, the limit sensor 6 sends a stop signal to the controller. This indicates that the sealing gap between the tailgate 7 and the vehicle body 8 exceeds the lower or upper limit of the normal tolerance. In addition to sending a stop signal, it can also provide an alarm to remind that the gap is out of tolerance, and the drive motor 41 will stop driving. By setting the limit sensor 6, multiple protections can be provided during the movement of the worm gear 43.

[0046] In some alternative embodiments, see Figure 2 As shown, the tailgate side limiting movable block 1 also includes a base 12 and a protrusion 11 fixed to the base 12. The tailgate limiting surface 111 is provided on the protrusion 11. Preferably, the protrusion 11 has an inclined surface, which is the tailgate limiting surface 111. The vehicle body side limiting block 3 can be provided with an inclined surface that cooperates with the tailgate limiting surface 111. The movement of the tailgate side limiting movable block 1 causes the inclined surface of the protrusion 11 to fit or separate from the tailgate limiting surface 111, allowing for a certain buffer time between the two inclined surfaces from contact to fit, or from fit to separation, so that the cooperation between the tailgate side limiting movable block 1 and the vehicle body side limiting block 3 can be smoother, providing protection for both the tailgate side limiting movable block 1 and the vehicle body side limiting block 3. Preferably, the vehicle body side limiting block 3 can be fixed by a rod 31.

[0047] In some optional embodiments, the tailgate side limiting movable block 1 further includes a base 12, the protrusion 11 is fixed to the base 12, the protrusion 11 has a cavity, and the sensing start-stop component is fixed in the cavity. When the tailgate limiting surface 111 contacts the sensing start-stop component, the sensing start-stop component is turned on. That is, in this embodiment, the sensing start-stop component can be set as a contact switch. When the tailgate limiting surface 111 is attached to the vehicle body side limiting block 3 and is squeezed by the vehicle body side limiting block 3, causing the tailgate limiting surface 111 to contact the contact switch, the contact switch is turned on. After receiving the signal, the controller sends a stop working command to the drive motor 41. Similarly, when the tailgate limiting surface 111 is away from the vehicle body side limiting block 3, and the vehicle body side limiting block 3 no longer squeezes the tailgate limiting surface 111, the tailgate limiting surface 111 does not contact the contact switch, the contact switch is turned off, and after receiving the signal, the controller also sends a stop working command to the drive motor 41.

[0048] In some optional embodiments, the tailgate side limiting assembly further includes a screw 13, which passes through the tailgate fixing member 2 and is fixed to the tailgate fixing member 2; the tailgate side limiting movable block 1 has an elongated hole 121, which extends along the extending direction of the slide groove 21, and the screw 13 passes through the elongated hole 121. (See also...) Figure 8 and Figure 9 As shown, the tailgate side limiting assembly may further include a housing 9, which can clamp the sheet metal part of the tailgate 7 with the tailgate fixing member 2, and then fix it with a screw 13. A nut 91 can be connected to the screw 13 on one side of the housing 9. The end of the screw 13 near the base 12 may have a head that does not pass through the elongated hole 121. This head prevents the tailgate side limiting movable block 1 from falling off while the screw 13 passes through the elongated hole 121 to connect the tailgate side limiting movable block 1 to the tailgate fixing member 2. Preferably, the elongated hole 121 is formed on the base 12. Extending the elongated hole 121 along the extension direction of the slide groove 21 ensures that the movement of the elongated hole 121 along the screw 13 and the movement of the connecting block 14 in the slide groove 21 do not interfere with each other, allowing the tailgate side limiting movable block 1 to move normally. See also... Figure 5 As shown, in some other embodiments, a hole cover 122 may also be provided on the side of the base 12 away from the housing 9. The hole cover 122 covers the elongated hole 121 to enhance the aesthetics of the back door side limiting movable block 1.

[0049] See Figure 3As shown, this application embodiment also provides a vehicle, which includes a vehicle body 8 and a tailgate 7 installed on the vehicle body 8. The vehicle body 8 is fixed with a vehicle body side limiting block 3; the tailgate 7 is equipped with a tailgate side limiting component as described above. The vehicle body side limiting block 3 cooperates with the tailgate limiting surface 111 for limiting. The vehicle body side limiting block 3 may have an inclined surface that cooperates with the tailgate limiting surface 111, and the inclined surface of the vehicle body side limiting block 3 has a certain hardness, which can cause the tailgate limiting surface 111 to be squeezed and cause a slight deformation of the tailgate limiting surface 111; the vehicle also includes a controller, which is signal-connected to the drive mechanism 4 of the tailgate side limiting component. The controller can be integrated into the electric tailgate 7 controller, which can control the opening and closing of the tailgate 7. When the tailgate 7 opening switch is triggered, the electric tailgate 7 controller receives a signal and controls the tailgate side limiting component. The drive motor 41 in the component sends a running command, and the drive motor 41 drives the worm gear 43 to drive the tailgate side limit block 1 to translate away from the vehicle body side limit block 3. Preferably, within 100ms, the tailgate limit surface 111 separates from the inclined surface of the vehicle body side limit block 3, the sensor start-stop device 5 is disconnected, the electric tailgate 7 controller sends a stop command, the drive motor 41 stops working, the tailgate 7 lock motor is unlocked, and the tailgate 7 opens. When the tailgate 7 closing switch is activated, after the tailgate 7 is closed to the maximum, the tailgate 7 lock is locked, the electric tailgate 7 controller receives the signal and sends a running command to the drive motor 41. The drive motor 41 drives the worm gear 43 to drive the tailgate side limit block 1 to translate towards the vehicle body side limit block 3 until the sensor start-stop device 5 is activated, the electric tailgate 7 controller sends a stop command, the drive motor 41 stops working, and the tailgate 7 closing process is completed. This design allows for a certain positional misalignment between the vehicle side limiting block 3 and the tailgate side limiting movable block 1 when the tailgate 7 is closed. This effectively prevents impact noise caused by contact between the tailgate side limiting movable block 1 and the vehicle side limiting block 3 during the closing process. Furthermore, after the tailgate 7 is closed, the tailgate side limiting movable block 1 moves to fit against the vehicle side limiting block 3, ensuring that there is almost no gap between the tailgate side limiting movable block 1 and the vehicle side limiting block 3 during the closing process. This reduces the likelihood of impact noise caused by contact during bumpy environments. Shortly before the tailgate 7 is opened, the tailgate side limiting movable block 1 and the vehicle side limiting block 3 move from a fitted state to a separated state. This also reduces the likelihood of a rattling sound when the tailgate 7 is opened due to excessive tightness between the tailgate side limiting movable block 1 and the vehicle side limiting block 3, which could result in a release of reaction force.

[0050] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0051] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A back door side check assembly, characterized by, It includes: The back door side limit movable block (1) has a back door limit surface (111) for cooperating with the vehicle body side limit block (3); The driving mechanism (4) is connected to the back door side limit movable block (1), and the driving mechanism (4) is configured to drive the back door side limit movable block (1) to move away from or close to the side of the vehicle body (8) limit block; The back door fixing piece (2) is fixed to the side of the back door side limit movable block (1) away from the back door limit surface (111), and the back door fixing piece (2) is provided with a sliding groove (21); The back door side limit movable block (1) further comprises a connecting block (14), and the connecting block (14) is provided in the sliding groove (21); The driving mechanism (4) is connected to the connecting block (14), and the driving mechanism (4) drives the connecting block (14) to move in the sliding groove (21).

2. The back door side check assembly of claim 1, wherein, The driving mechanism (4) comprises: The driving motor (41) is connected with an output gear (42); The worm (43) is installed on the side of the connecting block (14) close to the back door fixing piece (2), and the driving motor (41) drives the worm (43) to drive the axial movement along the worm (43) through the output gear (42).

3. The back door side limit assembly of claim 2, wherein: The back door side limit assembly further comprises an induction start-stop device (5) for controlling the driving mechanism (4) to stop driving when the back door limit surface (111) is separated from the door side limit block is sensed.

4. The back door side limit assembly of claim 3, wherein: The back door side limit assembly further comprises a controller, the controller is signal connected with the driving mechanism (4), and the induction start-stop device (5) is signal connected with the controller.

5. The back door side limit assembly of claim 4, wherein: The back door side limit assembly further comprises a limit limit induction piece (6), the limit limit induction piece (6) is fixed to the back door fixing piece (2), and the limit limit induction piece (6) is distributed on the opposite sides of the worm (43) along the axial direction of the worm (43); The limit limit induction piece (6) is signal connected with the controller, and the controller is used for controlling the driving mechanism (4) to stop driving when the connecting block (14) touches the limit limit induction piece (6).

6. The back door side limit assembly of claim 4, wherein: The back door side limit movable block (1) further comprises a base (12) and a protruding block (11) fixed to the base (12), and the back door limit surface (111) is arranged on the protruding block (11).

7. The back door side limit assembly of claim 6, wherein: The back door side limiting movable block (1) further comprises a base (12), the protruding block (11) is fixed to the base (12), the protruding block (11) has a cavity, the inductive start-stop device (5) is fixed in the cavity, when the back door limiting surface (111) contacts the inductive start-stop device (5), the inductive start-stop device (5) is turned on.

8. The back door side limiting assembly of claim 1, wherein: The back door side limiting assembly further comprises a screw rod (13), the screw rod (13) is arranged in the back door fixing part (2), and the screw rod (13) is fixed with the back door fixing part (2); The back door side limiting movable block (1) is provided with a long hole (121), the long hole (121) extends along the extension direction of the sliding groove (21), and the screw rod (13) is arranged in the long hole (121).

9. A vehicle characterized by comprising: It comprises a vehicle body (8) and a back door (7) mounted on the vehicle body (8), the vehicle body (8) is fixed with a vehicle body side limiting block (3); The back door (7) is provided with the back door side limiting assembly of any one of claims 1-8; The vehicle further comprises a controller, and the controller is signal connected with the driving mechanism (4) of the back door side limiting assembly.

Images