Tail gate driving device, vehicle and tail gate control method

Abstract

The invention provides a tail gate driving device, a vehicle and a tail gate control method, and relates to the technical field of vehicles, and the tail gate driving device comprises a track, a supporting piece and a sliding mechanism; the sliding mechanism is provided with a driving piece, and the driving piece can drive the sliding mechanism to slide along the track; one end of the supporting piece is rotationally connected with the sliding mechanism, and the other end of the supporting piece is used for being rotationally connected with the tail door so that the supporting piece can drive the tail door to ascend and descend. According to the tail gate driving device provided by the invention, the supporting piece is driven to support or fall down the tail gate in a sliding mode of the sliding mechanism and the rail, the number of parts of the tail gate driving device is small, the connection relation between the parts is simple, the structure of the tail gate driving device can be simplified, the assembly convenience is improved, and the maintenance difficulty is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a tailgate driving device, a vehicle, and a tailgate control method. Background Art

[0002] At present, the automobile industry has developed comprehensively and has undergone revolutionary changes, which are mainly manifested in the development of electrification, intelligence and simplification. Various new technologies are competing to be reflected in automobiles, among which electric tailgate technology is also one of the important modules that reflect product competitiveness.

[0003] In order to facilitate users to open and close the tailgate, a physical tailgate switch is set inside the car or on the tailgate, and an electric strut is used to drive the tailgate to rise and fall. Users can press the physical tailgate switch to achieve the tailgate rising and falling.

[0004] However, the electric strut is equipped with a motor, a screw-nut mechanism, a gear reduction mechanism and other structures inside. The structure of the electric strut is complex, the convenience of assembly is low, and the maintenance is difficult. Summary of the Invention

[0005] The object of the present invention is to provide a tailgate driving device to solve the technical problems in the prior art of the electric support rod having a complex structure, low assembly convenience, and high maintenance difficulty.

[0006] The tailgate driving device provided by the present invention comprises a track, a support member and a sliding mechanism; The sliding mechanism is provided with a driving member, and the driving member is capable of driving the sliding mechanism to slide along the track; One end of the support member is rotatably connected to the sliding mechanism, and the other end of the support member is used to be rotatably connected to the tailgate, so that the support member can drive the tailgate to rise and fall.

[0007] Furthermore, the sliding mechanism includes a wheel assembly; The driving member is connected to the wheel assembly, and the driving member can drive the wheel assembly to slide along the track.

[0008] Furthermore, the driving member is connected to the wheel assembly through gear meshing.

[0009] Furthermore, the wheel assembly includes an axle and a wheel; Both ends of the shaft are connected to the wheel body respectively; the driving member is connected to the wheel body located at one end of the shaft.

[0010] Furthermore, along the extension direction of the track, the wheel assembly is respectively provided at both ends of the sliding mechanism, and the driving member is connected to the wheel assembly located at one end of the sliding mechanism.

[0011] Furthermore, the track is provided with a guide structure; the guide structure is cooperatively connected with the sliding mechanism to guide the sliding mechanism along the extension direction of the track.

[0012] Furthermore, the guide structure includes a groove, which is arranged on the bottom wall of the track, and the extension direction of the groove is parallel to the extension direction of the track; the sliding mechanism includes a wheel body assembly, which is arranged in the groove, and the wheel body assembly can slide along the groove.

[0013] Furthermore, the sliding mechanism is detachably connected to the driving member, the sliding mechanism is detachably connected to the track, and the supporting member is detachably connected to the sliding mechanism.

[0014] Another object of the present invention is to provide a vehicle comprising the tailgate driving device provided by the present invention.

[0015] The present invention also aims to provide a tailgate control method, which uses the tailgate drive device provided by the present invention to drive the tailgate to rise and fall, comprising the following steps: The driving member drives the sliding mechanism to slide along the track from an initial position to a preset position, and the supporting member drives the tailgate to rise to a preset height; The driving member drives the sliding mechanism to slide along the track from a preset position to an initial position, and the supporting member drives the tailgate to descend to a closed state.

[0016] The tailgate drive device provided by the present invention includes a track, a support member, and a sliding mechanism; the sliding mechanism is provided with a drive member capable of driving the sliding mechanism to slide along the track; one end of the support member is rotatably connected to the sliding mechanism, and the other end of the support member is rotatably connected to the tailgate, so that the support member can drive the tailgate to rise and fall. When the tailgate drive device is in an initial state, the sliding mechanism is located at one end of the track, and the support member is located within the track. When the tailgate needs to be opened, the drive member drives the sliding mechanism to slide from one end of the track to the other end, one end of the support member rotates relative to the sliding mechanism, and the other end of the support member rotates relative to the tailgate, gradually extending the support member from the track and supporting the tailgate to rise. When the tailgate needs to be closed, the drive member drives the sliding mechanism to slide from the other end of the track to one end, one end of the support member rotates relative to the sliding mechanism, and the other end of the support member rotates relative to the tailgate, gradually retracting the support member from the track to the other end, driving the tailgate to fall. The tailgate drive device provided by the present invention utilizes a sliding mechanism and a track to slide to drive a support member to raise or lower the tailgate. The tailgate drive device has a small number of parts and a simple connection relationship between the parts, which can simplify the structure of the tailgate drive device, improve assembly convenience, and reduce maintenance difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 is a diagram of the tailgate drive device provided by an embodiment of the present invention in a usage state (when the tailgate is closed); Figure 2 is a diagram of the tailgate driving device provided by an embodiment of the present invention in a usage state (when the tailgate is open); Figure 3 Schematic diagram of the structure of the sliding mechanism of the tailgate drive device provided by an embodiment of the present invention.

[0019] Icon: 1-support member; 2-track; 21-guide structure; 3-pin; 4-driving member; 5-sliding mechanism; 51-sliding body; 52-shaft body; 53-wheel body; 6-bracket. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] The present invention provides a tailgate drive device, a vehicle, and a tailgate control method. The tailgate drive device, the vehicle, and the tailgate control method provided by the present invention are described in detail below with reference to a plurality of embodiments.

[0022] The tailgate driving device provided in this embodiment is as follows: Figures 1 to 3 As shown, it includes a track 2, a support member 1 and a sliding mechanism 5; the sliding mechanism 5 is provided with a driving member 4, which can drive the sliding mechanism 5 to slide along the track 2; one end of the support member 1 is rotatably connected to the sliding mechanism 5, and the other end of the support member 1 is used to be rotatably connected to the tailgate, so that the support member 1 can drive the tailgate to rise and fall.

[0023] When the tailgate drive is in its initial state, the sliding mechanism 5 is located at one end of the track 2, and the support member 1 is located within the track 2. To open the tailgate, the driver 4 drives the sliding mechanism 5 to slide from one end of the track 2 toward the other. One end of the support member 1 rotates relative to the sliding mechanism 5, while the other end rotates relative to the tailgate. The support member 1 gradually extends out of the track 2, supporting the tailgate's ascent. To close the tailgate, the driver 4 drives the sliding mechanism 5 to slide from the other end of the track 2 toward one end. One end of the support member 1 rotates relative to the sliding mechanism 5, while the other end rotates relative to the tailgate. The support member 1 gradually retracts into the track 2, driving the tailgate downward.

[0024] The tailgate drive device provided in this embodiment utilizes the sliding mechanism 5 and the track 2 to slide and drive the support member 1 to raise or lower the tailgate. The tailgate drive device has a small number of parts and the connection relationship between the parts is simple, which can simplify the structure of the tailgate drive device, improve the assembly convenience, and reduce the difficulty of maintenance.

[0025] The driving member 4 may be a motor, a hydraulic motor or any other suitable form. The supporting member 1 may be a support rod, a support frame or any other suitable form. The track 2 is fixed to the vehicle body and may be fixed to the vehicle by bolts.

[0026] In order to enable the sliding mechanism 5 to slide along the track 2, in an optional embodiment, the sliding mechanism 5 can be provided with a gear, the driving member 4 is connected to the gear, the driving member 4 drives the gear to rotate around the axis of the gear, and the bottom wall of the track 2 is provided with a rack, the extension direction of the rack is parallel to the extension direction of the track 2, and the gear is engaged with the rack, so that the sliding mechanism 5 can slide along the track 2 under the drive of the driving member 4.

[0027] In another optional embodiment, the sliding mechanism 5 includes a wheel assembly, the driving member 4 is connected to the wheel assembly, and the driving member 4 can drive the wheel assembly to slide along the track 2.

[0028] Specifically, the wheel assembly includes a wheel body 53, and the driving member 4 is connected to the wheel assembly to drive the wheel body 53 to rotate around the axis of the wheel body 53. When the wheel body 53 rotates around the axis of the wheel body 53, it can drive the wheel assembly to slide along the track 2, and then drive the sliding mechanism 5 to slide along the track 2.

[0029] By utilizing the wheel assembly to drive the sliding mechanism 5 to slide along the track 2 , the sliding mechanism 5 can be driven to slide along the track 2 relatively smoothly.

[0030] The driving member 4 may be directly connected to the wheel body 53 of the wheel body assembly, or may be connected via gear meshing.

[0031] Furthermore, the driving member 4 is connected to the wheel assembly through gear meshing.

[0032] The driving member 4 is connected to the wheel assembly through gear meshing. The meshing structure between the gears is relatively stable. When the driving member 4 drives the wheel assembly to move to a certain position on the track 2, the wheel assembly can be better maintained in this position, thereby enabling the sliding mechanism 5 to be better maintained in this position. When the tailgate is open, the support member 1 on the sliding mechanism 5 can be stably maintained in its position and angle, which can prevent the support member 1 from falling suddenly, thereby enabling the support member 1 to stably support the tailgate, preventing the tailgate from injuring the user, and improving the safety of the tailgate drive device.

[0033] Specifically, the sliding mechanism 5 includes a sliding body 51 and a wheel assembly. The wheel assembly includes a wheel 53, which is rotatably connected to the sliding body 51 and can rotate about its axis. The driving member 4 is connected to the wheel assembly via gear meshing, thereby driving the wheel 53 in the wheel assembly to rotate. When the wheel 53 rotates, it can drive the sliding body 51 to slide along the extension direction of the track 2.

[0034] The wheel assembly includes a shaft 52 and a wheel 53, with both ends of the shaft 52 connected to the wheel 53. The driver 4 can be connected to the shaft 52 to drive the shaft 52 to rotate about its axis; the driver can also be connected to the wheel 53 to drive the wheel 53 to rotate about its axis.

[0035] The wheel assembly may include one wheel 53 or multiple wheel 53. When the wheel assembly includes multiple wheel 53, each wheel 53 may be connected to the driving member 4, or only one wheel 53 among the multiple wheel 53 may be connected to the driving member 4.

[0036] Furthermore, the wheel assembly includes a shaft 52 and a wheel 53 , and both ends of the shaft 52 are respectively connected to the wheel 53 ; the driving member 4 is connected to the wheel 53 located at one end of the shaft 52 .

[0037] The two ends of the shaft body 52 are fixedly connected to the wheel body 53 respectively, and the driving member 4 is connected to the wheel body 53 located at one end of the shaft body 52. ​​The driving member 4 drives the wheel body 53 located at one end of the shaft body 52 to rotate around its own axis, thereby driving the shaft body 52 to rotate around the axis of the shaft body 52, and at the same time driving the wheel body 53 located at the other end of the shaft body 52 to rotate around its own axis.

[0038] The driving member 4 is connected to the wheel body 53 located at one end of the shaft body 52 to drive the shaft body 52 and the two wheels 53 to rotate. The structure is relatively simple and can help simplify the structure of the tailgate driving device.

[0039] Specifically, the wheel assembly includes a shaft 52 and two wheels 53. The shaft 52 is rotatably connected to the sliding body 51 and can rotate about its axis. Both ends of the shaft 52 are fixedly connected to the wheels 53. One of the two wheels 53 is provided with a first gear. A second gear is fixedly mounted on the output shaft of the driving member 4, and the first and second gears mesh. When the driving member 4 is in operation, the driving member 4 drives the first gear to rotate about its axis. The first gear drives the second gear to rotate about its axis. The second gear drives the wheel 53 on the second gear to rotate about its axis. The wheel 53 drives the shaft 52 and the other wheel 53 to rotate, thereby causing the wheel assembly to drive the sliding body 51 to slide along the track 2.

[0040] The number of wheel assemblies can be one or more. When there are multiple wheel assemblies, the multiple wheel assemblies can be spaced apart on the sliding body 51 along the extension direction of the track 2 so that the wheel assemblies can support the sliding body 51 more stably.

[0041] When there are multiple groups of wheel body assemblies, in an optional embodiment, there are multiple driving members 4, and the multiple driving members 4 are arranged in a one-to-one correspondence with the multiple groups of wheel body assemblies; in another optional embodiment, there is one driving member 4, and one driving member 4 is connected to one wheel body assembly in the multiple groups of wheel body assemblies.

[0042] Furthermore, along the extension direction of the track 2 , wheel assemblies are respectively provided at both ends of the sliding mechanism 5 , and the driving member 4 is connected to the wheel assembly located at one end of the sliding mechanism 5 .

[0043] When the tailgate drive is in its initial state, the tailgate is closed and the sliding mechanism 5 is located at one end of the track 2. The wheel assembly at the end of the sliding mechanism 5 facing the track 2 is the rear wheel assembly, while the wheel assembly at the other end of the sliding mechanism 5 facing the track 2 is the front wheel assembly. The driver 4 can be connected to either the rear wheel assembly or the front wheel assembly. This arrangement allows a single driver 4 to drive both wheel assemblies, reducing the number of parts, simplifying the equipment structure, and lowering equipment costs while ensuring the sliding of the sliding mechanism 5.

[0044] Wheel assemblies are respectively provided at both ends of the sliding mechanism 5 , so that the sliding mechanism 5 has four wheels 53 . The four wheels 53 can stably support the sliding body 51 , thereby making the sliding mechanism 5 slide more stably.

[0045] In this embodiment, a bracket 6 is fixedly provided on the sliding body 51, the driving member 4 is fixedly connected to the bracket 6, one end of the support member 1 is rotatably connected to the sliding body 51 through the pin 3, and the other end of the support member 1 is rotatably connected to the tailgate through the pin 3.

[0046] Furthermore, the track 2 is provided with a guide structure 21 , which is cooperatively connected with the sliding mechanism 5 to guide the sliding mechanism 5 along the extension direction of the track 2 .

[0047] Under the action of the guide structure 21, the sliding path of the sliding mechanism 5 can be guided, thereby making the sliding path of the sliding mechanism 5 more accurate, so that the support member 1 can be stably and accurately extended or retracted to accurately drive the tailgate to rise and fall.

[0048] Among them, the guide structure 21 can include a protrusion, and a strip-shaped protrusion is respectively arranged on the two side walls of the track 2, and the extension direction of the strip-shaped protrusion is the same as the extension direction of the track 2. Guide grooves are respectively arranged on the two side walls of the sliding body 51, and the two strip-shaped protrusions are matched and connected with the two guide grooves in a one-to-one manner. The strip-shaped protrusion extends into the guide groove, so that the guide structure 21 plays a guiding role on the sliding mechanism 5.

[0049] Furthermore, the guide structure 21 includes a groove, which is arranged on the bottom wall of the track 2, and the extension direction of the groove is parallel to the extension direction of the track 2; the sliding mechanism 5 includes a wheel body assembly, which is arranged in the groove and can slide along the groove.

[0050] A groove is provided on the top surface of the bottom wall of the track 2, and the extension direction of the groove is parallel to the extension direction of the track 2. The wheel body 53 of the wheel assembly is provided in the groove, and the wheel body 53 rotates around the axis of the wheel body 53 in the groove, so that the wheel assembly can slide along the groove.

[0051] The number of grooves can be one or more. If wheels 53 are provided on both sides of the sliding mechanism 5 along a direction perpendicular to the extension direction of the track 2 (a first direction), two corresponding grooves are provided. The two grooves are spaced apart along the first direction. The wheel 53 on one side of the sliding assembly is disposed in one groove, and the wheel 53 on the other side of the sliding assembly is disposed in the other groove.

[0052] The extension direction of track 2 is as follows Figure 1 The direction indicated by the arrows ab, the first direction is as follows Figure 1 In the direction indicated by the arrow cd.

[0053] Furthermore, the sliding mechanism 5 is detachably connected to the driving member 4 , the sliding mechanism 5 is detachably connected to the track 2 , and the supporting member 1 is detachably connected to the sliding mechanism 5 .

[0054] The detachable connection can be any suitable form such as a snap connection or a threaded connection.

[0055] When the tailgate drive device fails, if one or more of the sliding mechanism 5, track 2, support member 1 and drive member 4 fails, the broken parts can be replaced individually, which has low maintenance costs and high convenience, and there is no need to replace the entire tailgate drive device.

[0056] Furthermore, along the extension direction of the track 2, first limiting members are respectively provided at both ends of the track 2, and the first limiting members can abut against the sliding mechanism 5.

[0057] The first limiting member may be in the shape of a plate or a block or any other suitable structure.

[0058] Both ends of the track 2 have openings, and the first limiter blocks the openings. When the sliding mechanism 5 moves to both ends of the track 2 , the first limiter can block the sliding mechanism 5 to prevent the sliding mechanism 5 from falling off the track 2 .

[0059] The first limiting member may be detachably connected to the sliding mechanism 5 , and may also be made of an elastic material, so as to facilitate the sliding mechanism 5 to be removed from or installed into the track 2 .

[0060] Furthermore, a second position-limiting member is provided at the top opening of the track 2 , and the second position-limiting member can abut against the sliding mechanism 5 .

[0061] A second stopper is provided at the top opening, which can block the sliding mechanism 5 at the top opening position and prevent the sliding mechanism 5 from falling out of the top opening. In addition, the second stopper is located above the sliding mechanism 5 and does not hinder the sliding mechanism 5 and the support rod from sliding along the track 2.

[0062] The vehicle provided in this embodiment includes the tailgate driving device provided in this embodiment.

[0063] As the driver 4 drives the sliding mechanism 5 from one end of the track 2 to the other, one end of the support member 1 rotates relative to the sliding mechanism 5, while the other end of the support member 1 rotates relative to the tailgate, thereby raising or lowering the tailgate. In the vehicle provided by this embodiment, the sliding mechanism 5 slides with the track 2 to drive the support member 1 to raise or lower the tailgate. This tailgate drive device has a small number of parts and simple connections between the parts, simplifying its structure, improving assembly convenience, and reducing maintenance difficulty.

[0064] The tailgate control method provided in this embodiment uses the tailgate driving device provided in this embodiment to drive the tailgate to rise and fall, and includes the following steps: The driving member 4 drives the sliding mechanism 5 to slide along the track 2 from the initial position to the preset position, and the support member 1 drives the tailgate to rise to the preset height; The driving member 4 drives the sliding mechanism 5 to slide along the track 2 from the preset position to the initial position, and the supporting member 1 drives the tailgate to descend to the closed state.

[0065] The track 2 has a first end and a second end. When the sliding mechanism 5 is located at the first end, it is in an initial position. The preset position can be located at the second end or between the first end and the second end.

[0066] The preset position can be set via the controller according to the opening degree of the tailgate.

[0067] The driving member 4 drives the sliding mechanism 5 to slide along the track 2 from the initial position to the preset position. One end of the support member 1 rotates relative to the sliding mechanism 5, and the other end of the support member 1 rotates relative to the tailgate. The support member 1 gradually extends out of the track 2 and supports the tailgate to rise. The support member 1 drives the tailgate to rise to a preset height. The driving member 4 drives the sliding mechanism 5 to slide along the track 2 from the preset position to the initial position. One end of the support member 1 rotates relative to the sliding mechanism 5, and the other end of the support member 1 rotates relative to the tailgate. The support member 1 gradually retracts into the track 2, and the support member 1 drives the tailgate to descend to the closed state.

[0068] The tailgate is raised or lowered by driving the support member 1 by sliding the sliding mechanism 5 and the track 2, so that the number of parts of the tailgate drive device is small and the connection relationship between the parts is simple, which can simplify the structure of the tailgate drive device, improve assembly convenience, and reduce maintenance difficulty.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tailgate drive device, characterized in that: It comprises a track (2), a support member (1) and a sliding mechanism (5); The sliding mechanism (5) is provided with a driving member (4), and the driving member (4) is capable of driving the sliding mechanism (5) to slide along the track (2); One end of the support member (1) is rotatably connected to the sliding mechanism (5), and the other end of the support member (1) is used to be rotatably connected to the tailgate, so that the support member (1) can drive the tailgate to rise and fall.

2. The tailgate driving device according to claim 1, characterized in that: The sliding mechanism (5) comprises a wheel assembly; The driving member (4) is connected to the wheel assembly, and the driving member (4) is capable of driving the wheel assembly to slide along the track (2).

3. The tailgate driving device according to claim 2, characterized in that: The driving member (4) is connected to the wheel assembly via gear meshing.

4. The tailgate driving device according to claim 2, characterized in that: The wheel body assembly comprises an axle body (52) and a wheel body (53); Both ends of the shaft body (52) are connected to the wheel body (53) respectively; the driving member (4) is connected to the wheel body (53) located at one end of the shaft body (52).

5. The tailgate driving device according to claim 2, characterized in that: Along the extension direction of the track (2), the wheel body assemblies are respectively provided at both ends of the sliding mechanism (5), and the driving member (4) is connected to the wheel body assembly located at one end of the sliding mechanism (5).

6. The tailgate driving device according to claim 1, characterized in that: The track (2) is provided with a guide structure (21); the guide structure (21) is cooperatively connected with the sliding mechanism (5) to guide the sliding mechanism (5) along the extension direction of the track (2).

7. The tailgate driving device according to claim 6, characterized in that: The guide structure (21) includes a groove, the groove is arranged on the bottom wall of the track (2), and the extension direction of the groove is parallel to the extension direction of the track (2); the sliding mechanism (5) includes a wheel body assembly, the wheel body assembly is arranged in the groove, and the wheel body assembly can slide along the groove.

8. The tailgate driving device according to claim 1, characterized in that: The sliding mechanism (5) is detachably connected to the driving member (4), the sliding mechanism (5) is detachably connected to the track (2), and the supporting member (1) is detachably connected to the sliding mechanism (5).

9. A vehicle, characterized in that: The invention comprises the tailgate driving device according to any one of claims 1 to 8.

10. A tailgate control method, characterized in that: Using the tailgate driving device according to any one of claims 1 to 8 to drive the tailgate to rise and fall comprises the following steps: The driving member (4) drives the sliding mechanism (5) to slide along the track (2) from an initial position to a preset position, and the supporting member (1) drives the tailgate to rise to a preset height; The driving member (4) drives the sliding mechanism (5) to slide along the track (2) from a preset position to an initial position, and the supporting member (1) drives the tailgate to descend to a closed state.

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