Automobile back door assembly and automobile

Abstract

An automobile back door assembly and an automobile belong to the technical field of automobiles, the automobile back door assembly comprises a sliding type upper tail door assembly connected with an upper top cover and a lower tail door hinged to a trunk floor, the upper tail door assembly is in sealing fit with the lower tail door, and the lower tail door is hinged to the trunk floor. The upper tail door assembly comprises a rear top cover connected with the upper top cover and an upper tail door in sliding fit with the rear top cover, and the rear tail door assembly has the beneficial effects that the integral structure of the rear back door is changed into a split structure, and the opening mode of the rear back door is changed, so that the transportation space of the vehicle can be expanded, and the cargo carrying capacity of the vehicle can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and in particular to an automobile back door assembly and an automobile. Background Art

[0002] As a means of transportation, cars play a huge role, but due to the overall size of the vehicle, the size of the road and the internal space of the vehicle itself, the cargo capacity is relatively limited. Improving the vehicle's usable space based on the existing size has become an important indicator for car companies to develop new models. The transportation space of existing vehicles is determined after the body is finalized and cannot be expanded. The transportation capacity is greatly limited and cannot meet some large-scale transportation needs.

[0003] For example, the patent with publication number CN106114163A proposes a car rear door hinge installation structure, including a hinge reinforcement plate arranged on the upper end of the rear door inner plate, the rear door is connected to the vehicle body through a hinge assembly, one side of the hinge assembly is connected to the hinge reinforcement plate, and the other side is connected to the rear top crossbeam of the vehicle body. The rear door is an integral structure, which is installed on the vehicle body through a hinge, but the internal space of the vehicle trunk is still limited, which cannot meet the needs of transporting large items. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a car tailgate assembly, which can expand the vehicle's transportation space and improve the vehicle's cargo capacity by changing the overall structure of the tailgate into a split structure and changing its opening method.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention to solve its technical problem is: the automobile tailgate assembly includes a sliding upper tailgate assembly connected to the upper top cover and a lower tailgate hingedly connected to the trunk floor, the upper tailgate assembly is sealed with the lower tailgate, and the upper tailgate assembly includes a rear top cover connected to the upper top cover and an upper tailgate slidingly matched with the upper tailgate.

[0006] A slideway structure is arranged on the upper surface or the lower surface of the rear top cover along the direction of the vehicle body, and a slide rail structure slidably matched with the slideway structure is arranged on the upper tailgate.

[0007] The slideway structure comprises strip slideways arranged on both sides of the rear top cover, and the slide rail structure comprises strip slide rails arranged on both sides of the upper tailgate, and the strip slideways are slidably matched with corresponding strip slide rails.

[0008] Both ends of the slideway structure are provided with blocks to prevent the slideway structure from falling out; when the upper tailgate is fully opened, the rear top cover is connected to the top of the upper tailgate via a positioning structure.

[0009] When the slideway structure is arranged on the upper surface of the rear top cover, the slide rail structure is arranged on the lower surface of the upper tailgate; and the length of the upper tailgate is greater than the length of the rear top cover, and the upper tailgate covers the rear top cover after sliding upward to a position.

[0010] When the slideway structure is arranged on the lower surface of the rear top cover, the slide rail structure is arranged on the upper surface of the upper tailgate; and the length of the upper tailgate is smaller than the length of the rear top cover, and after the upper tailgate slides upward into place, the rear top cover covers the upper tailgate.

[0011] A side surface of the upper tailgate that is slidably matched with the rear top cover is provided with an annular sealing strip along its circumference

[0012] Ⅰ, the annular sealing strip Ⅰ is arranged around the outer side of the slide rail structure, and the annular sealing strip Ⅰ is sealed with the lower tailgate.

[0013] The upper cover is fixedly or hingedly connected to the rear cover.

[0014] The rear top cover is provided with an annular sealing strip II along the circumferential direction for sealing contact with the vehicle body.

[0015] A car comprises the car back door assembly.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention provides a car tailgate assembly, which divides the vehicle tailgate into an upper tailgate assembly and a lower tailgate. The upper tailgate assembly adopts a sliding structure to open and close, and slides forward and backward in conjunction with the fastback shape; the lower tailgate is hingedly connected to the trunk floor and opens and closes in a flipping manner. When the upper tailgate slides open, the height direction space of the vehicle is expanded, which can meet the transportation needs of some large items and improve the cargo capacity.

[0018] 2. The present invention provides an annular sealing strip I on the outer periphery of the upper tailgate and an annular sealing strip II on the outer periphery of the rear top cover, thereby ensuring the sealing between the entire upper tailgate assembly and the vehicle body, preventing rainwater from entering the trunk, and ensuring the sealing effect of the overall structure of the rear tailgate assembly; and by blocking both ends of the slideway structure through a block, the closing of the upper tailgate can be reliably limited. In addition, when the upper tailgate is fully opened, the upper tailgate is connected to the rear top cover through a positioning structure to limit the opening position of the upper tailgate, thereby ensuring the stability and reliability of the sliding opening and closing of the upper tailgate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents expressed in the drawings of the present invention and the symbols in the drawings:

[0020] Figure 1The figure is a schematic diagram of the whole vehicle structure of the vehicle back door assembly of the present invention in a closed state;

[0021] Figure 2 It is a schematic diagram of the whole vehicle structure of the vehicle back door assembly of the present invention in an open state;

[0022] Figure 3 It is a structural schematic diagram of the automobile back door assembly of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the upper tailgate in the present invention;

[0024] Figure 5 It is a schematic structural diagram of the rear top cover in the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the lower tailgate in the present invention;

[0026] The markings in the above figures are: 1. upper top cover, 2. rear top cover, 21. slide rail structure, 22. stopper, 23. annular sealing strip II, 3. upper tailgate, 31. slide rail structure, 32. annular sealing strip I, 4. lower tailgate, 41. arc section, 42. bent sealing section. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0028] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the prior art, the transportation space of existing vehicles is determined after the body is finalized and cannot be expanded. In particular, the trunk space is limited, and the back door is generally an integral structure with a limited opening, which greatly limits the transportation capacity and cannot meet some large-item transportation needs.

[0031] Regarding the above technical issues, such as Figure 1-Figure 3 As shown, the present invention provides a car back door assembly, including a sliding upper tail door 3 assembly connected to an upper top cover 1 and a lower tail door 4 hingedly connected to a trunk floor, the upper tail door 3 assembly and the lower tail door 4 are sealed and matched to ensure the sealing of the back door assembly after closing, wherein the upper tail door 3 assembly includes a rear top cover 2 connected to the upper top cover 1 and an upper tail door 3 slidingly matched therewith. The present invention divides the vehicle tail door into an upper tail door 3 assembly and a lower tail door 4, the upper tail door 3 assembly adopts a sliding structure to realize opening and closing, and realizes sliding forward and backward; the lower tail door 4 is hingedly connected to the trunk floor and is opened and closed by a flipping method. When the upper tail door 3 slides open, the height direction space of the vehicle is expanded, which can meet the transportation needs of some large items and improve the cargo capacity.

[0032] Specifically, Figure 1-Figure 3 As shown, the rear top cover 2 and the upper tailgate 3 are arranged in a fastback shape, wherein the upper surface or the lower surface of the rear top cover 2 is provided with a slideway structure 21 along the vehicle body direction, and the upper tailgate 3 is provided with a slide rail structure 31 that slides with the slideway structure 21. Figure 5 As shown, the slideway structure 21 includes strip slideways arranged on both sides of the rear top cover 2, and the strip slideways are arranged on both sides of the rear top cover 2; Figure 4 As shown, the slide rail structure 31 includes bar slide rails arranged on both sides of the upper tailgate 3, and the bar slide rails are slidably matched with the corresponding bar slide rails to realize the upper tailgate 3 sliding forward and backward relative to the rear top cover 2. The upper tailgate 3 can slide along the rear top cover 2 by a motor drive, that is, the slide rail structure 21 can be set as a linear guide rail, which is driven by a motor, and the slider on the linear guide rail is fixedly connected to the slide rail structure 31. The motor action can be controlled by a button to realize the opening and closing of the upper tailgate 3. Of course, it can also be opened manually.

[0033] like Figure 5 As shown, both ends of the slideway structure 21 are provided with blocks 22 to prevent the slideway structure 31 from slipping out. The blocks 22 block both ends of the slideway structure 21, and the closing of the upper tailgate 3 can be reliably limited. Moreover, when the upper tailgate 3 is fully opened, the rear top cover 2 is connected to the top of the upper tailgate 3 through a positioning structure, and the positioning structure can be set to a magnetic structure, a snap-on structure, etc., to limit the opening position of the upper tailgate 3. The above-mentioned structures ensure the stability and reliability of the sliding opening and closing of the upper tailgate 3.

[0034] The sliding structure between the rear top cover 2 and the upper tailgate 3 can be set in the following two ways: one structure is as follows: Figure 1-Figure 3 As shown, the slide structure 21 is arranged on the upper surface of the rear top cover 2, and the slide rail structure 31 is arranged on the lower surface of the upper tailgate 3; and the length of the upper tailgate 3 is greater than the length of the rear top cover 2, and the upper tailgate 3 covers the rear top cover 2 after sliding upward into position, thereby ensuring the sealing effect of the entire upper tailgate 3 assembly in the open and closed states, and the overall design is more reasonable.

[0035] Another structure is, not shown in the figure, in which the slide structure 21 is arranged on the lower surface of the rear top cover 2, and the slide rail structure 31 is arranged on the upper surface of the upper tailgate 3, wherein the longitudinal section of the slide structure 21 can be arranged in a dovetail shape to prevent the upper tailgate 3 on the lower side from detaching from the rear top cover 2 due to gravity; and the length of the upper tailgate 3 is less than the length of the rear top cover 2. After the upper tailgate 3 slides upward into place, the rear top cover 2 covers the upper tailgate 3, so that the upper tailgate 3 has better integrity after being opened.

[0036] Specifically, Figure 4 As shown, a side surface of the upper tailgate 3 that slides with the rear top cover 2 is provided with an annular sealing strip I32 along its circumference, the annular sealing strip I32 is arranged around the outer side of the slide rail structure 31, and the annular sealing strip I32 is sealed with the lower tailgate 4. Figure 5 As shown, the upper cover 1 is provided with an annular sealing strip II23 in sealing contact with the vehicle body along the circumferential direction. The provision of the annular sealing strip I32 and the annular sealing strip II23 ensures the sealing between the entire upper tailgate 3 assembly and the vehicle body, prevents rainwater from entering the trunk, and ensures the sealing effect of the overall structure of the back door assembly.

[0037] In addition, the upper cover 1 is fixedly or hingedly connected to the rear cover 2. When the upper cover 1 is hingedly connected to the rear cover 2, the transportation space can be further expanded by flipping upward, and the cargo carrying capacity can be further improved.

[0038] like Figure 1 , 2 6, wherein the lower tailgate 4 is hingedly connected to the trunk floor through a hinge, and the profile of the lower tailgate 4 is an arc-shaped inward buckled structure, including an arc segment 41 and a bent sealing segment 42 with an L-shaped cross section. The arrangement of the arc segment 41 further increases the trunk space, and the bent sealing segment 42 ensures a sealed connection with the upper tailgate 3. The lower tailgate 4 can be opened and closed manually or electrically.

[0039] The present invention also protects a car, comprising the above-mentioned car back door assembly.

[0040] In summary, the present invention achieves the expansion of the vehicle's transportation space and improves the vehicle's cargo capacity by changing the integral structure of the tailgate into a split structure and changing the opening method thereof.

[0041] The above description is only used to illustrate some principles of the present invention. This specification is not intended to limit the present invention to the specific structure and application scope shown and described. Therefore, all corresponding modifications and equivalents that may be used belong to the patent scope applied for by the present invention.

Claims

1. A car back door assembly, characterized in that: The invention comprises a sliding upper tailgate assembly connected to an upper top cover and a lower tailgate hingedly connected to a trunk floor, wherein the upper tailgate assembly is sealed with the lower tailgate, and the upper tailgate assembly comprises a rear top cover connected to the upper top cover and an upper tailgate slidingly matched with the rear top cover.

2. The automobile back door assembly according to claim 1, characterized in that: A slideway structure is arranged on the upper surface or the lower surface of the rear top cover along the direction of the vehicle body, and a slide rail structure slidably matched with the slideway structure is arranged on the upper tailgate.

3. The automobile back door assembly according to claim 2, characterized in that: The slideway structure comprises strip slideways arranged on both sides of the rear top cover, and the slide rail structure comprises strip slide rails arranged on both sides of the upper tailgate, and the strip slideways are slidably matched with corresponding strip slide rails.

4. The automobile back door assembly according to claim 2, characterized in that: Both ends of the slideway structure are provided with blocks to prevent the slideway structure from falling out; when the upper tailgate is fully opened, the rear top cover is connected to the top of the upper tailgate via a positioning structure.

5. The automobile back door assembly according to claim 2, characterized in that: When the slideway structure is arranged on the upper surface of the rear top cover, the slide rail structure is arranged on the lower surface of the upper tailgate; and the length of the upper tailgate is greater than the length of the rear top cover, and the upper tailgate covers the rear top cover after sliding upward to a position.

6. The automobile back door assembly according to claim 2, characterized in that: When the slideway structure is arranged on the lower surface of the rear top cover, the slide rail structure is arranged on the upper surface of the upper tailgate; and the length of the upper tailgate is smaller than the length of the rear top cover, and after the upper tailgate slides upward into place, the rear top cover covers the upper tailgate.

7. The automobile back door assembly according to claim 1, characterized in that: A side surface of the upper tailgate that is slidably matched with the rear top cover is circumferentially provided with an annular sealing strip I, which is arranged around the outer side of the slide rail structure and is sealingly matched with the lower tailgate.

8. The automobile back door assembly according to claim 7, characterized in that: The upper cover is provided with an annular sealing strip II along the circumferential direction for sealing contact with the vehicle body.

9. The automobile back door assembly according to claim 1, characterized in that: The upper cover is fixedly or hingedly connected to the rear cover.

10. An automobile, characterized in that: It comprises the automobile tailgate assembly as described in any one of claims 1 to 9.

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