Movable tail gate of automobile

Abstract

The invention discloses an automobile movable tail door which comprises a trunk cover plate and two movable opening and closing mechanisms, and the movable opening and closing mechanisms are installed at the bottom of the trunk cover plate. The movable opening and closing mechanism comprises a cover plate supporting arm, a fixing base, a connecting rod set, a driving supporting rod and a power transmission rod set. The connecting rod assembly is connected with the cover plate supporting arm and the fixing base. The driving supporting rod is rotatably arranged in the middle of the fixing base, the tail end of a movable rod of the driving supporting rod is rotatably connected with the power transmission rod set, one end of the power transmission rod set is connected with the connecting rod set, and the other end of the power transmission rod set is installed in the middle of the fixing base. By means of a linkage mechanism among the cover plate supporting arms, the connecting rod sets and the driving supporting rods, the tail door can reach a larger opening angle, the accessibility of the storage space is remarkably enhanced, loading and unloading of large objects are facilitated, and the tail door can be conveniently opened in outdoor use scenes such as camping and picnic. And the tail door can be used as a temporary shielding space or a workbench, so that the multifunctionality is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile tailgates, and in particular to an automobile movable tailgate. Background Art

[0002] A car's tailgate is an openable door at the rear of the vehicle used to access the trunk or cargo area. Its primary function is to provide access to the vehicle's rear storage space, facilitating the loading and unloading of items such as luggage, shopping bags, and sports equipment. Its design must take safety into consideration, ensuring it won't accidentally open while driving and protecting passengers from injury in the event of a collision. For family vehicles or those that frequently carry cargo, the tailgate's design directly impacts the vehicle's practicality and convenience.

[0003] With technological advancements, tailgate opening methods are also evolving, with features like electric tailgates and foot-activated opening and closing enhancing the driving experience. As cars enter the new energy era, the concept of using their vehicles for outdoor activities and camping is becoming increasingly popular among car owners. However, traditional car trunks typically have limited opening angles, which not only limits storage capacity and the ability to expand outdoor space, but also makes them inconvenient to use. Summary of the Invention

[0004] In view of the problem that the tailgate opening angle is limited, which not only restricts the storage and loading capacity and the outdoor space expansion capability, but also makes it inconvenient to use, the present invention provides a movable tailgate for a car with a large tailgate opening angle, which does not limit the storage and loading capacity and is convenient for expanding the outdoor space.

[0005] To achieve the above object, the technical solution of the present invention is as follows: A movable tailgate of an automobile comprises a trunk cover and two movable opening and closing mechanisms, wherein a movable opening and closing mechanism is respectively installed at the bottom of each side of the trunk cover; the movable opening and closing mechanism comprises a cover support arm, a fixing seat, a connecting rod group, a driving strut and a power transmission rod group, wherein the cover support arm is fixedly installed at the bottom of the trunk cover, and the fixing seat is connected to the automobile body; one end of the connecting rod group is rotatably connected to the cover support arm, and the other end is rotatably connected to the fixing seat; the driving strut is rotatably arranged in the middle of the fixing seat, and the movable rod end of the driving strut is rotatably connected to the power transmission rod group, one end of the power transmission rod group is rotatably connected to the connecting rod group, and the other end is rotatably installed in the middle of the fixing seat.

[0006] Directions: When the tailgate of the car needs to be opened, the movable rod of the driving strut is controlled to extend, and the power transmission rod group and the movable rod rotate relative to each other, thereby driving the power transmission rod group to move; the power movable rod group drives the connecting rod group to move, so that the connecting rod group drives the cover support arm to lift upward, completing the opening operation of the trunk cover, and the tailgate of the car is successfully opened; otherwise, the tailgate of the car is closed; the driving strut can be an electric strut.

[0007] Furthermore, a first hinge point is provided on the left side of the fixing seat, and a fifth hinge point is provided on the right side; a third hinge point is provided in the middle of the cover support arm, and a fourth hinge point is provided at the right end; the connecting rod group includes an arc-shaped first support arm and a second support arm; the upper end of the first support arm is rotatably connected to the third hinge point, and the lower end is rotatably connected to the first hinge point, wherein a second hinge point is also provided at the middle and lower end of the first support arm; the upper end of the second support arm is rotatably connected to the fourth hinge point, and the lower end is rotatably connected to the fifth hinge point; the power transmission rod group is rotatably connected to the second hinge point to complete the connection between the transmission rod group and the first support arm. When the tailgate of the car is opened, the movable rod of the driving strut drives the power transmission rod group to move by extending or shortening, and then the power transmission rod group drives the first support arm to move upward through the second hinge point, and then the first support arm drives the cover support arm to open the cover, thereby completing the opening operation of the trunk cover; otherwise, the tailgate of the car is closed; through the extension and contraction of the driving strut, power can be effectively transmitted to the power transmission rod group, and then through the cooperation of the hinge point system, the force is converted into the lifting or lowering action of the cover support arm, ensuring the smooth opening and closing of the tailgate. The design of multi-point hinge and connecting rod group increases the stability and durability of the system, reduces the shaking and noise that may occur during the opening and closing process, and improves the safety of use.

[0008] Furthermore, the first support arm and the fixed seat are connected to each other for relative rotation by riveting at the first hinge point, and the first support arm and the cover support arm are connected to each other for relative rotation by riveting at the third hinge point; the second support arm and the cover support arm are connected to each other for relative rotation by riveting at the fourth hinge point, and the second support arm and the fixed seat are connected to each other for relative rotation by riveting at the fifth hinge point. The use of riveting to achieve rotatable connection at each hinge point significantly enhances the stability and durability of the vehicle's movable tailgate mechanism. Riveting provides a firm fixing point, ensuring reliable connection between the first support arm and the fixed seat and the cover support arm, and between the second support arm and the cover support arm and the fixed seat, reducing loosening or wear caused by long-term use. At the same time, it ensures that the tailgate maintains a smooth and quiet operating experience during frequent opening and closing, thereby improving user satisfaction.

[0009] Furthermore, an eighth hinge point is provided at the bottom in the middle of the fixed seat; the power transmission rod group includes a first driving arm and a second driving arm; a seventh hinge point is provided in the middle of the first driving arm, and a sixth hinge point is provided at the right end; the left end of the first driving arm is connected to the second hinge point, and the right end is connected to the top of the second driving arm through the sixth hinge point, wherein the bottom of the second driving arm and the driving support rod are respectively connected to the eighth hinge point; the movable rod at the top of the driving support rod is connected to the seventh hinge point. When the tailgate of the car is opened, the movable rod of the driving support rod is extended, driving the first driving arm to move, so that the angle between the first driving arm and the second driving arm is increased, and the first driving arm drives the first support arm to lift upward at the second hinge point to complete the opening movement of the tailgate of the car; conversely, the tailgate of the car can be closed; through the linkage of the first driving arm and the second driving arm, and their cooperation with multiple hinge points, the opening angle of the tailgate can be precisely controlled, which ensures that the tailgate can be opened smoothly to the preset position without hitting the upper obstacle due to over-opening, and the sophisticated design of multiple hinge points reduces the direct friction between the components and reduces the wear rate, thereby reducing the maintenance frequency and cost, and extending the service life of the entire tailgate opening and closing system.

[0010] Furthermore, the first driving arm and the first support arm are connected to each other for relative rotation by riveting at the second hinge point, and the first driving arm and the second driving arm are connected to each other for relative rotation by riveting at the sixth hinge point; the second driving arm and the driving strut are respectively connected to the fixed seat for relative rotation by riveting at the eighth hinge point, wherein the other end of the driving strut is connected to the first driving arm for relative rotation by riveting at the seventh hinge point.

[0011] Furthermore, the vehicle cover and the cover support arm are fixedly connected by bolts, and the fixing base and the vehicle body are fixedly connected by bolts. The bolt connection makes the connection between the structures firm and reliable and facilitates subsequent maintenance and replacement.

[0012] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The linkage mechanism between the cover support arm, connecting rod group and driving strut of the present invention allows the tailgate to reach a larger opening angle, which not only significantly enhances the accessibility of the storage space and facilitates the loading and unloading of large items, but also in outdoor use scenarios such as camping and picnics, the tailgate can be used as a temporary shelter or workbench, enhancing versatility; at the same time, the larger opening angle allows the tailgate to form a more spacious work or rest platform when used outdoors, which can serve as the basis of an awning or mount additional outdoor equipment such as a bicycle rack or tent stand, thereby expanding the outdoor application range and convenience of the vehicle.

[0013] 2. The power transmission rod group of the present invention cooperates with other components through various hinges, which can convert the force of the driving support rod into the lifting or lowering action of the cover support arm, ensuring the smooth opening and closing of the tailgate and reliability, while enhancing the overall stability and durability, and reducing the shaking and noise that may occur during the opening and closing of the tailgate, and has high safety in use; through the coordinated linkage of the first driving arm and the second driving arm through multiple hinge points, the tailgate can be controlled, and it is ensured that the tailgate can be opened smoothly to the preset position, which is safe and reliable in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a main view schematic diagram of the specific structure of a movable tailgate of an automobile.

[0015] Figure 2 The utility model is a top view of a car's movable tailgate in a closed state when in use.

[0016] Figure 3 The present invention is a main view of a closed state of a movable tailgate of an automobile when in use.

[0017] Figure 4 The present invention is a main view of the opening process of a vehicle's movable tailgate when in use.

[0018] Figure 5 The utility model is a top view of a car's movable tailgate in a closed state when in use.

[0019] Figure 6 The present invention is a main view of a car's movable tailgate in a closed state when in use.

[0020] Figure ID: Cover support arm-1, third hinge point-11, fourth hinge point-12, fixing base-2, first hinge point-21, fifth hinge point-22, eighth hinge point-23, connecting rod group-3, first support arm-31, second support arm-32, second hinge point-33, driving strut-4, power transmission rod group-5, first driving arm-51, second driving arm-52, seventh hinge point-53, sixth hinge point-54, trunk cover-6, car roof-7. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Example 1: A movable tailgate of an automobile, comprising a trunk cover 6 and two movable opening and closing mechanisms, wherein a movable opening and closing mechanism is respectively installed at the bottom of both sides of the trunk cover 6; the movable opening and closing mechanism comprises a cover support arm 1, a fixing seat 2, a connecting rod group 3, a driving strut 4 and a power transmission rod group 5, wherein the cover support arm 1 is fixedly installed at the bottom of the trunk cover 6, and the fixing seat 2 is connected to the automobile body 7; one end of the connecting rod group 3 is rotatably connected to the cover support arm 1, and the other end is rotatably connected to the fixing seat 2; the driving strut 4 is rotatably arranged in the middle of the fixing seat 2, and the movable rod end of the driving strut 4 is rotatably connected to the power transmission rod group 5, and one end of the power transmission rod group 5 is rotatably connected to the connecting rod group 3, and the other end is rotatably installed in the middle of the fixing seat 2.

[0023] Directions: The driving strut 4 is an electric strut. When the tailgate needs to be opened, the movable rod of the driving strut 4 is controlled to extend, and the power transmission rod group and the movable rod rotate relative to each other, thereby driving the power transmission rod group to move. The power movable rod group drives the connecting rod group 3 to move, so that the connecting rod group 3 drives the cover support arm 1 to lift upward, completing the opening operation of the trunk cover 6, and thus successfully opening the tailgate. Otherwise, the tailgate is closed. When the tailgate is closed, the trunk cover 6 is connected to the car roof 7. When the tailgate is opened, the trunk cover 6 is separated from the car roof 7 and then lifted to a position above the car roof 7. Then, through the linkage mechanism between the cover support arm 1, the connecting rod group and the driving strut 4, the trunk cover 6 is covered on the car roof 7, completing the entire tailgate opening operation.

[0024] Example 2: The difference from Example 1 is that the fixing seat 2 is provided with a first hinge point 21 on the left side and a fifth hinge point 22 on the right side; the cover support arm 1 is provided with a third hinge point 11 in the middle and a fourth hinge point 12 at the right end; the connecting rod group 3 includes an arc-shaped first support arm 31 and a second support arm 32; the upper end of the first support arm 31 is rotatably connected to the third hinge point 11, and the lower end is rotatably connected to the first hinge point 21, wherein the middle and lower ends of the first support arm 31 are also provided with a second hinge point 33; the upper end of the second support arm 32 is rotatably connected to the fourth hinge point 12, and the lower end is rotatably connected to the fifth hinge point 22; the power transmission rod group is rotatably connected to the second hinge point 33 to complete the connection between the transmission rod group and the first support arm 31. When the car tailgate is opened, the movable rod of the driving support rod 4 drives the power transmission rod group 5 to move by extending or shortening, and then the power transmission rod group 5 drives the first support arm 31 to move upward through the second hinge point 33, and then the first support arm 31 drives the cover support arm 1 to open the cover, thereby completing the opening operation of the trunk cover 6; otherwise, the car tailgate is closed; by driving the extension and contraction of the support rod 4, the power can be effectively transmitted to the power transmission rod group 5, and then through the cooperation of the hinge point system, the force is converted into the lifting or lowering action of the cover support arm 1, ensuring the smooth opening and closing of the tailgate and reliability. The design of multi-point hinge and connecting rod group 3 increases the stability and durability of the system, reduces the shaking and noise that may occur during the opening and closing process, and improves the safety of use.

[0025] An eighth hinge point 23 is also provided at the bottom in the middle of the fixed seat 2; the power transmission rod group 5 includes a first driving arm 51 and a second driving arm 52; a seventh hinge point 53 is provided in the middle of the first driving arm 51, and a sixth hinge point 54 is provided at the right end; the left end of the first driving arm 51 is connected to the second hinge point 33, and the right end is connected to the top of the second driving arm 52 through the sixth hinge point 54, wherein the second driving arm 52 and the bottom of the driving support rod 4 are respectively connected to the eighth hinge point 23; the movable rod at the top of the driving support rod 4 is connected to the seventh hinge point 53. When the tailgate of the car is opened, the movable rod of the driving support rod 4 is extended, driving the first driving arm 51 to move, so that the angle between the first driving arm 51 and the second driving arm 52 is increased, and the first driving arm 51 drives the first support arm 31 to lift upward at the second hinge point 33 to complete the opening movement of the tailgate of the car; otherwise, the tailgate of the car can be closed; through the linkage of the first driving arm 51 and the second driving arm 52, and their cooperation with multiple hinge points, the opening angle of the tailgate can be precisely controlled, which ensures that the tailgate can be opened smoothly to the preset position without hitting the upper obstacles due to over-opening, and the ingenious design of multiple hinge points reduces the direct friction between the components and reduces the wear rate, thereby reducing the maintenance frequency and cost, and extending the service life of the entire tailgate opening and closing system.

[0026] Example 3: Differences from Example 1 are that the first support arm 31 is connected to the fixing base 2 for relative rotation by riveting at the first hinge point 21, and the first support arm 31 is connected to the cover support arm 1 for relative rotation by riveting at the third hinge point 11; the second support arm 32 is connected to the cover support arm 1 for relative rotation by riveting at the fourth hinge point 12, and the second support arm 32 is connected to the fixing base 2 for relative rotation by riveting at the fifth hinge point 22. The use of riveting to achieve rotatable connection at each hinge point significantly enhances the stability and durability of the vehicle's movable tailgate mechanism. Riveting provides a secure fixing point, ensuring reliable connections between the first support arm 31 and the fixing base 2 and the cover support arm 1, and between the second support arm 32 and the cover support arm 1 and the fixing base 2. This reduces loosening or wear caused by prolonged use, while ensuring smooth and quiet operation during frequent opening and closing of the tailgate, thereby improving user satisfaction.

[0027] The first driving arm 51 and the first support arm 31 are connected for relative rotation via riveting at the second hinge point 33. The first driving arm 51 and the second driving arm 52 are connected for relative rotation via riveting at the sixth hinge point 54. The second driving arm 52 and the driving strut 4 are respectively connected for relative rotation to the fixing base 2 at the eighth hinge point 23 via riveting. The other end of the driving strut 4 is connected for relative rotation to the first driving arm 51 via riveting at the seventh hinge point 53. This riveted connection is stable and reliable, has low installation costs, and is easy to promote and use.

[0028] The automobile cover and the cover support arm 1 are fixedly connected by bolts; the fixing base 2 is fixedly connected to the automobile body 7 by bolts. The bolt connection makes the connection between the structures firm and reliable and facilitates later maintenance and replacement.

[0029] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0030] 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 make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A movable tailgate for an automobile, characterized in that: The invention comprises a trunk cover (6) and two movable opening and closing mechanisms, wherein a movable opening and closing mechanism is respectively installed at the bottom of both sides of the trunk cover (6); the movable opening and closing mechanism comprises a cover support arm (1), a fixing seat (2), a connecting rod group (3), a driving strut (4) and a power transmission rod group (5), wherein the cover support arm (1) is fixedly installed at the bottom of the trunk cover (6), and the fixing seat (2) is connected to the vehicle body; one end of the connecting rod group (3) is rotatably connected to the cover support arm (1), and the other end is rotatably connected to the fixing seat (2); the driving strut (4) is rotatably arranged in the middle of the fixing seat (2), and the movable rod end of the driving strut (4) is rotatably connected to the power transmission rod group (5); one end of the power transmission rod group (5) is rotatably connected to the connecting rod group (3), and the other end is rotatably installed in the middle of the fixing seat (2).

2. The automobile movable tailgate according to claim 1, characterized in that: The fixing seat (2) is provided with a first hinge point (21) on the left side and a fifth hinge point (22) on the right side; the cover support arm (1) is provided with a third hinge point (11) in the middle and a fourth hinge point (12) at the right end; the connecting rod group (3) comprises an arc-shaped first support arm (31) and a second support arm (32); the upper end of the first support arm (31) is rotatably connected to the third hinge point (11), and the lower end is rotatably connected to the first hinge point (21), wherein a second hinge point (33) is further provided at the middle and lower end of the first support arm (31); the upper end of the second support arm (32) is rotatably connected to the fourth hinge point (12), and the lower end is rotatably connected to the fifth hinge point (22); the power transmission rod group is rotatably connected to the second hinge point (33), thereby completing the connection between the transmission rod group and the first support arm (31).

3. The automobile movable tailgate according to claim 2, characterized in that: The first support arm (31) and the fixing seat (2) are connected to each other in a relatively rotatable manner at a first hinge point (21) by riveting, and the first support arm (31) and the cover plate support arm (1) are connected to each other in a relatively rotatable manner at a third hinge point (11) by riveting; the second support arm (32) and the cover plate support arm (1) are connected to each other in a relatively rotatable manner at a fourth hinge point (12) by riveting, and the second support arm (32) and the fixing seat (2) are connected to each other in a relatively rotatable manner at a fifth hinge point (22) by riveting.

4. A vehicle movable tailgate according to any one of claims 1 to 3, characterized in that: An eighth hinge point (23) is also provided at the bottom in the middle of the fixing seat (2); the power transmission rod group (5) comprises a first driving arm (51) and a second driving arm (52); a seventh hinge point (53) is provided at the middle of the first driving arm (51), and a sixth hinge point (54) is provided at the right end; the left end of the first driving arm (51) is connected to the second hinge point (33), and the right end is connected to the top of the second driving arm (52) through the sixth hinge point (54), wherein the second driving arm (52) and the bottom of the driving support rod (4) are respectively connected to the eighth hinge point (23); and the movable rod at the top of the driving support rod (4) is connected to the seventh hinge point (53).

5. The automobile movable tailgate according to claim 4, characterized in that: The first driving arm (51) and the first support arm (31) are connected to each other in a relatively rotatable manner at the second hinge point (33) by riveting, and the first driving arm (51) and the second driving arm (52) are connected to each other in a relatively rotatable manner at the sixth hinge point (54) by riveting; the second driving arm (52) and the driving strut (4) are respectively connected to the fixing seat (2) in a relatively rotatable manner at the eighth hinge point (23) by riveting, wherein the other end of the driving strut (4) is connected to the first driving arm (51) in a relatively rotatable manner at the seventh hinge point (53) by riveting.

6. The automobile movable tailgate according to claim 1, characterized in that: The automobile cover plate and the cover plate support arm (1) are fixedly connected by bolts; and the fixing seat (2) and the automobile body are fixedly connected by bolts.

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