CN212637127U - Tailgate with tail gate and automotive tailgate mounting assembly - Google Patents

Abstract

The application discloses a back door with tail wings and an automobile back door mounting assembly, wherein the back door comprises a back door metal plate and tail wings mounted on the back door metal plate, a flow guide channel is formed between the back door metal plate and the tail wings, and the tail wings are connected with the back door metal plate through two first mounting parts and at least one second mounting part; the second installation department sets up between two first installation departments, and the both sides of every second installation department respectively form a water conservancy diversion passageway, and one side of back of the body panel beating towards the automobile body front end is provided with two bellied water conservancy diversion portions, forms the guiding gutter between two water conservancy diversion portions. At least three connecting points are arranged between the empennage and the back door metal plate, and a diversion trench is formed at the front end of the back door metal plate, so that the connection strength of the empennage is improved, and the air flow passing performance is ensured; among the car back of the body door installation component, the back of the body door is articulated through two gooseneck hinges and roof panel beating, and the length direction of two gooseneck hinges all sets up along automobile body length direction, has guaranteed the support intensity of the back of the body door.

Description

Tailgate with tail gate and automotive tailgate mounting assembly

Technical Field

The application relates to the technical field of automobiles, in particular to a backdoor with a tail wing and an automobile backdoor installation assembly.

Background

In some automobiles, the empennages are arranged on the back door main body, a flow guide channel is formed between the empennages of the back door main body, and dirt on a rear windshield can be removed by utilizing the power of air in the driving process of the automobile, so that a rear wiper structure is omitted.

However, at the same time, the weight of the tailgate increases due to the addition of the tail wing structure, and the hinges between the tailgate and the roof are generally disposed at the side edges of the tailgate and disposed along the width direction of the vehicle body, and the mounting manner of the hinges has insufficient support strength in the length direction of the vehicle body. Therefore, the backdoor provided with the tail wing is generally made of light resin materials, however, the manufacturing cost of the resin materials is high, and the backdoor is not suitable for common vehicle types.

In addition, the tail wing and the back door main body are generally installed through two-point positioning at present, and the increase of the connecting points can influence the air flow passing of the tail wing and influence the cleaning effect of the rear wind shielding ratio.

SUMMERY OF THE UTILITY MODEL

The utility model provides a low and joint strength is high back of the body door and car back of the body door installation component that has the tailplane that prior art is overcome to the aim at of this application.

The technical scheme of the application provides a backdoor with a tail wing, which comprises a backdoor metal plate and a tail wing arranged on the backdoor metal plate, wherein the tail wing comprises two first installation parts and at least one second installation part, and the first installation parts and the second installation parts are connected with the backdoor metal plate;

the two first installation parts are arranged at two ends of the tail wing in the width direction of the vehicle body, the second installation part is arranged between the two first installation parts, and two sides of each second installation part form a flow guide channel;

the back door panel beating all is provided with the fixed part at the ascending both ends of automobile body width direction, every first installation department with one the fixed part is connected, one side that the fixed part is towards the automobile body front end is provided with bellied water conservancy diversion portion, two form the guiding gutter between the water conservancy diversion portion.

Furthermore, in the height direction of the vehicle body, two side surfaces of the second mounting part gradually incline towards the first mounting part or the second mounting part relative to the second mounting part from bottom to top;

the first installation part faces the side face of the second installation part and gradually faces one side of the second installation part from bottom to top.

Furthermore, first installation department includes location structure and fixed knot structure, during the installation earlier will through the setting element location structure is in advance on the fixed part, rethread first fastener fixed connection fixed knot structure with the fixed part.

Further, the back of the body door is still including inlaying windshield in the back of the body door panel beating, the second installation department includes panel beating fixed knot structure and glass fixed knot structure, the panel beating fixed knot structure pass through the second fastener with back of the body door sheet metal connection, the glass fixed knot structure pass through the third fastener with windshield connects, glass fixed knot structure with still be provided with the watertight subassembly between the windshield.

The application still provides an automobile back door installation component, including roof panel beating, gooseneck hinge and as before the back of the body door, the back of the body door is through two the gooseneck hinge with the roof panel beating is articulated, two the length direction of gooseneck hinge all sets up along automobile body length direction.

Further, two the gooseneck hinge is connected respectively two of back of the body door on the fixed part, every the gooseneck hinge includes the rotatory public piece of articulated fixed female and gooseneck, fixed female is connected the roof panel beating, the rotatory public piece of gooseneck is connected the fixed part.

Furthermore, the fixed female part comprises a female part bottom plate connected with the roof sheet metal, and two female part supporting plates extend out of the female part bottom plate along two side edges of the length direction towards one side far away from the roof sheet metal;

the gooseneck rotary male part comprises a male part bottom plate connected with the backdoor, and two male part supporting plates extend out of one side of the male part bottom plate, which is far away from the backdoor, along two side edges of the length direction.

Further, install the hinge reinforcement on the fixed part, the hinge reinforcement be provided with three at least and connect the face with the fixed part is connected, arbitrary two connect the face not on the coplanar and nonparallel.

Furthermore, the automobile back door installation assembly further comprises a hinge decoration cover, and the hinge decoration cover is arranged on the roof metal plate and above the gooseneck hinge.

Furthermore, at least two clamping holes are formed in the gooseneck hinge, at least two clamping jaws are arranged on one side, facing the gooseneck hinge, of the hinge decorative cover, and each clamping jaw is correspondingly clamped in one clamping hole.

After adopting above-mentioned technical scheme, have following beneficial effect:

the tail wing is connected with the back door metal plate through the two first mounting parts and the at least one second mounting part, at least three connecting points are arranged between the tail wing and the back door metal plate, and a flow guide groove is formed at the front end of the back door metal plate, so that the connection strength of the tail wing is improved, and the air flow passing performance is also ensured;

the length direction of the connecting hinge for connecting the backdoor and the roof sheet metal is arranged along the length direction of the vehicle body, so that the supporting strength of the backdoor and the roof sheet metal is ensured.

Drawings

The disclosure of the present application will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:

FIG. 1 is a schematic view of an automotive back door mounting assembly in one embodiment of the present application;

FIG. 2 is a schematic view of another angle of the back door mounting assembly of the vehicle in an embodiment of the present application;

FIG. 3 is an exploded view of an automotive back door mounting assembly in accordance with an embodiment of the present application;

FIG. 4 is a partially exploded view of a tailgate according to an embodiment of the present application;

FIG. 5 is a cross-sectional view of the front end of the back door in an embodiment of the present application;

FIG. 6 is a schematic view of a fixing portion of a tailgate according to an embodiment of the present application;

FIG. 7 is a cross-sectional view taken along line a-a of FIG. 6;

FIG. 8 is a cross-sectional view taken along line b-b of FIG. 6;

FIG. 9 is a cross-sectional view taken along line c-c of FIG. 1;

FIG. 10 is an enlarged partial view of FIG. 9;

FIG. 11 is a schematic view of the installation of the gooseneck hinge and tailgate in an embodiment of the present application;

FIG. 12 is an enlarged view of area A of FIG. 11;

FIG. 13 is a schematic view of a hinge reinforcement member according to an embodiment of the present application;

FIG. 14 is a schematic view of a gooseneck hinge with a tailgate closed according to an embodiment of the present application;

FIG. 15 is a schematic view of a gooseneck hinge with the tailgate open according to an embodiment of the present application;

FIG. 16 is a cross-sectional view taken along line d-d of FIG. 15;

FIG. 17 is a cross-sectional view taken along line e-e of FIG. 15;

FIG. 18 is an exploded view of a gooseneck hinge and hinge escutcheon in an embodiment of the present application;

FIG. 19 is an enlarged partial view of the gooseneck hinge and hinge escutcheon in an embodiment of the present application;

fig. 20 is a cross-sectional view taken along line f-f of fig. 19.

Reference symbol comparison table:

back door 001:

back door metal plate 01: the structure comprises a fixing part 11, a back door positioning hole 111, a back door fixing hole 112, a hinge mounting surface 113, a hinge reinforcing part 114, a connecting surface 1141, a flow guide part 12, a flow guide groove 13, a sheet metal fixing hole 14 and a sheet metal inner plate 15;

the tail wing 02: the first installation part 21, the positioning structure 211, the fixing structure 212, the positioning piece 213, the first fastener 214, the second installation part 22, the sheet metal fixing structure 221, the glass fixing structure 222, the second fastener 223 and the third fastener 224;

a flow guide channel 03;

the windshield 04: glass fixing holes 41, watertight components 42, butyl rubber 421, gaskets 422 and annular sealing rings 423;

a roof panel (002);

gooseneck hinge 003:

fixing the female part 05: a female member fastener 51, a female member bottom plate 52, a female member support plate 53 and a clamping hole 54;

gooseneck rotary male part 06: male fastener 61, arc section 62, male bottom plate 63, male support plate 64;

hinge trim cover 004:

the claw 07: barb 71.

Detailed Description

Embodiments of the present application are further described below with reference to the accompanying drawings.

It is easily understood that according to the technical solutions of the present application, those skilled in the art can substitute various structures and implementations without changing the spirit of the present application. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present application, and should not be construed as limiting or restricting the technical solutions of the present application in their entirety.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

Back door:

the utility model provides a back door 001 with tail wing, as shown in fig. 4, including back door panel beating 01 and the fin 02 of installing on back door panel beating 01, fin 02 includes two first installation departments 21 and at least one second installation department 22, first installation department 21 and second installation department 22 are all connected with back door panel beating 01, two first installation departments 21 set up at the both ends of fin 02 on automobile body width direction Y, second installation department 22 sets up between two first installation departments 21, the both sides of every second installation department 22 respectively form a water conservancy diversion passageway 03 (see fig. 2);

as shown in fig. 4 and 5, the fixing portions 11 are disposed at two ends of the back door sheet metal 01 in the vehicle width direction Y, each first mounting portion 21 is connected to one fixing portion 11, one side of the fixing portion 11 facing the front end of the vehicle body is provided with a raised flow guide portion 12, and a flow guide groove 13 is formed between the two flow guide portions 12.

Specifically, the fin 02 is installed in the top of back door panel beating 01 towards automobile body front end one side, and the first installation department 21 and the second installation department 22 of fin 02 all set up along automobile body length direction X (the flow direction of air current promptly), between second installation department 22 and two first installation departments 21, form two water conservancy diversion passageways 03, have both strengthened the joint strength between fin 02 and the back door panel beating 01, do not influence the setting of water conservancy diversion passageway 03 again.

Alternatively, two or more second mounting portions 22 may be provided side by side, and since the second mounting portions 22 are provided on the flow path of the air flow, in order to reduce the influence on the air flow permeability, one or two second mounting portions 22 are preferably provided.

The first mounting portion 21 is connected to the fixing portions 11, and a guide channel 03 is formed by matching the first mounting portion 21, and protruding guide portions 12 are disposed at the front ends of the two fixing portions 11, as shown in fig. 5, so that a guide groove 13 is formed between the two guide portions 12.

In the running process of a vehicle, air is converged into air flow from the guide groove 13 at the front end of the back door and flows into the guide channel 03, and the guide groove 13 is matched with the guide channel 03, so that the cleaning strength of the air flow is enhanced.

The utility model provides a back of body door structure, back of body door panel beating 01 adopt the metal material preparation, and the cost is lower to be provided with at least three tie point between back of body door panel beating 01 and the fin 02, set up guiding gutter 13 through the front end at back of body door panel beating 01, also do not influence the air current when having guaranteed back of body door intensity and follow the passing through in water conservancy diversion passageway 03.

In one embodiment, in the vehicle height direction Z, both side surfaces of the second mounting portion 22 are gradually inclined from bottom to top toward the first mounting portion 21 or the second mounting portion 22 opposite thereto, and the first mounting portion 21 is gradually inclined from bottom to top toward the side surface of the second mounting portion 22 toward one side of the second mounting portion 22.

So arrange for on automobile body direction of height Z, two water conservancy diversion passageways 03's width top-down crescent, the vehicle driving in-process can be with on the windshield of air current direction rear below, guaranteed windshield's clean effect.

In one embodiment, as shown in fig. 6 to 8, the first mounting portion 21 includes a positioning structure 211 and a fixing structure 212, and when mounting, the positioning structure 211 is pre-positioned on the fixing portion 11 by a positioning member 213, and then the fixing structure 212 and the fixing portion 11 are fixedly connected by a first fastening member 214.

Specifically, referring to fig. 6 and 7, the positioning structure 211 is a tail wing positioning hole formed in the first mounting portion 21, the fixing portion 11 is correspondingly formed with a back door positioning hole 111, the positioning member 213 is a buckle, and the positioning member 213 sequentially passes through the tail wing positioning hole and the back door positioning hole 111 to position the tail wing 02 on the back door metal plate 01. Each of the first mounting portions 21 is provided with two tail wing positioning holes, and the two tail wing positioning holes are arranged in the vehicle body length direction X.

Referring to fig. 6 and 8, the fixing structure 212 is a tail wing fixing hole formed in the first mounting portion 21, the fixing portion 11 is correspondingly formed with a back door fixing hole 112, the first fastening member 214 is a bolt, and the first fastening member 214 sequentially penetrates through the back door fixing hole 112 and the tail wing fixing hole to fix the tail wing 02 on the back door metal plate 01. Each of the first mounting portions 21 is provided with two tail fixing holes, and the two tail fixing holes are arranged in the length direction X of the vehicle body.

When the tail fin 02 and the back door metal plate 01 are installed, the positioning part 213 is used for pre-positioning, so that the matching precision of the tail fin 02 and the back door metal plate 01 is ensured; on the premise of prepositioning, the first fastener 214 can be installed from one side of the back door sheet metal 01, only the head of the bolt is exposed, and the appearance is smooth.

In one embodiment, as shown in fig. 3, 4 and 9, the back door 001 further includes a windshield 04 embedded in the back door sheet metal 01, the second mounting portion 22 includes a sheet metal fixing structure 221 and a glass fixing structure 222, the sheet metal fixing structure 221 is connected with the back door sheet metal 01 through a second fastening member 223, and the glass fixing structure 222 is connected with the windshield 04 through a third fastening member 224.

Specifically, the metal plate fixing structure 221 is provided as a tail wing fixing hole, correspondingly, a metal plate fixing hole 14 is formed in the back door metal plate 01, and the second fastening piece 223 is provided with a bolt and sequentially penetrates through the tail wing fixing hole and the metal plate fixing hole 14 to connect the tail wing 02 and the back door metal plate 01.

The glass fixing structure 222 is also provided as a tail fixing hole, and the glass fixing structure 222 and the sheet metal fixing structure 221 are arranged in the vehicle body length direction X. The windshield 04 is provided with a glass fixing hole 41, and the third fastener 224 adopts a bolt and sequentially penetrates through the empennage fixing hole and the glass fixing hole 41 to connect the empennage 02 and the back door metal plate 01.

Preferably, the glass fixing structure 222 is connected to a junction between the windshield 04 and the back door metal plate 01, and the third fastening member 224 is connected to the rear door metal plate 01 and the sheet metal inner plate 15 extending below the windshield 04 while connecting the tail wing 02 and the windshield 04.

Preferably, a watertight assembly 42 is also provided between the glass securing structure 222 and the windscreen 04, as shown in figure 10.

Specifically, the watertight assembly 42 includes a butyl rubber 421, a gasket 422, and an annular gasket 423. The butyl rubber 421 is arranged between the sheet metal inner plate 15 and the windshield 04, the gasket 422 is arranged on the periphery of the third fastener 224, and the annular sealing ring 423 is arranged between the back door sheet metal 01 of the glass fixing hole 41; triple watertight of the junction of back door panel beating 01, windshield 04 and fin 02 is realized through butyl rubber 421, packing ring 422 and ring type sealing ring 423, effectively ensures the watertight effect.

The second installation part 22 is connected with back door panel beating 01 and windshield 04 simultaneously, makes fin 02 shelter from the juncture of back door panel beating 01 and windshield 04, has realized the effect of the whole glass top of back door from the rear view angle of back door 001.

In addition, in the vehicle body length direction X, the connection length between the second mounting portion 22 and the back door sheet metal 01 and the windshield 04 is N, the length between the sheet metal fixing mechanism 221 and the glass fixing mechanism 222 can be preferably set to be N/3, and the sheet metal fixing mechanism 221 and the glass fixing mechanism 222 are hidden in the middle area of the tail fin 02, so that the appearance shielding property is good.

Automobile back door installation component:

the utility model provides an automobile back door installation component, as shown in fig. 1-3, including roof panel beating 002, gooseneck hinge 003 and as before back door 001, back door 001 is articulated with roof panel beating 002 through two gooseneck hinges 003, and the length direction of two gooseneck hinges 003 all sets up along automobile body length direction X.

Specifically, the back door 001 is hinged to the roof sheet metal 002 through two gooseneck hinges 003, as shown in fig. 11, the two gooseneck hinges 003 are respectively installed at two ends of the back door sheet metal 01 in the vehicle width direction Y, and the length direction of the gooseneck hinges 003 is arranged along the vehicle length direction X, so that the pivoting axis L of the back door 001 and the roof sheet metal 002 is arranged along the width direction Y of the vehicle body.

The utility model provides a car back of body door installation component, gooseneck hinge 003 is great in the holding power of automobile body length direction X, can effectively bear the weight of back of the body door 001, guarantees the installation intensity of back of the body door 001.

In one embodiment, as shown in fig. 11-17, two gooseneck hinges 003 are respectively connected to the two fixing portions 11 of the tailgate 001, each gooseneck hinge 003 includes a female fixing member 05 and a male gooseneck rotating member 06, the female fixing member 05 is connected to the roof panel 002, and the male gooseneck rotating member 06 is connected to the fixing portion 11.

Specifically, as shown in fig. 12, the fixing portion 11 is located at a corner position of the front end of the back door metal plate 01, a hinge mounting surface 113 is formed on the fixing portion 11, and the gooseneck rotary male part 06 is connected to the hinge mounting surface 113 through two male part fasteners 61, so that the connection strength of the gooseneck rotary male part 06 is ensured.

Preferably, the gooseneck male swivel 06 is also connectable to the hinge mounting surface 113 by more than two male fasteners 61.

As shown in fig. 14 and 15, the fixed female member 05 is connected to the roof sheet metal 002 by two or more female member fastening members 51. Preferably, the female fasteners 51 are aligned along the length of the fixed female 05.

As shown in fig. 14 and 15, one end of the gooseneck rotary male part 06 connected with the fixed female part 05 is set to be the arc-shaped section 62, when the radian of the arc-shaped section 62 is adjusted according to the specific structure of the back door 001, the back door 001 does not interfere with the roof sheet metal 002 when the back door 001 is opened, and when the back door 001 is closed, the parting h between the back door 001 and the roof sheet metal 002 is reduced to 4-5mm, so that the appearance texture of the vehicle is effectively improved.

In one embodiment, as shown in fig. 16, the fixed female member 05 includes a female member bottom plate 52 connected to the roof sheet metal 002, and two female member support plates 53 extend from the female member bottom plate 52 along two sides of the length direction toward the side far away from the roof sheet metal 002;

as shown in fig. 17, the gooseneck rotary male part 06 includes a male part bottom plate 63 connected to the tailgate 001, and two male part supporting plates 64 extend from the male part bottom plate 63 along two sides of the length direction toward a side far away from the tailgate 001.

Fixed female member 05 and the rotatory public piece 06 of gooseneck all set up to "concave" shape section, have promoted part rigidity and intensity, guarantee the whole rigidity of backdoor 001.

In one embodiment, as shown in fig. 13, the fixing portion 11 is provided with a hinge reinforcement 114, and the hinge reinforcement 114 is provided with at least three connecting surfaces 1141 connected to the fixing portion, and any two connecting surfaces are not in the same plane and are not parallel.

Specifically, the hinge reinforcement 114 is welded to the hinge mounting surface 113 of the fixing portion 11. In this embodiment, the hinge reinforcement 114 is provided with nine connecting surfaces 1141 welded to the fixing portion 11, and the nine mounting surfaces 1141 connect the hinge reinforcement 114 and the fixing portion 11 at least from three directions.

This arrangement enables the hinge reinforcement 114 to be fastened from a plurality of directions, improving the strength of connection of the reinforcing plate and the fixing portion 11.

In one embodiment, as shown in fig. 1-3, the back door mounting assembly further includes a hinge trim 004, the hinge trim 004 covering the roof panel 002 over the gooseneck hinge 003.

The hinge decorative cover 004 is arranged on the roof metal plate 002 and used for covering the gooseneck hinge 003, and forms an appearance surface of the automobile roof together with the upper surface of the roof metal plate 002.

Specifically, as shown in fig. 18-20, at least two fastening holes 54 are formed in the gooseneck hinge 003, at least two claws 07 are arranged on one side of the hinge cover 004 facing the gooseneck hinge 003, and each claw 07 is fastened in one fastening hole 54.

Preferably, the engaging holes 54 are formed in the fixed female member 05 of the gooseneck hinge 003, and specifically, one engaging hole 54 is formed in each female member supporting plate 53. The clamping jaws 07 have certain elasticity, the end portions of the clamping jaws are provided with the barbs 71, in the installation process, the clamping jaws 07 are inserted into the outer surface of the female support plate 53, the female support plate 53 extrudes the barbs 71 to move along the outer surface of the support plate 53, and the installation is completed until the two barbs 71 are respectively clamped in the two clamping holes 54.

The hinge trim cover 004 and the gooseneck hinge 003 are matched in a clamping manner, so that the installation is convenient, the degree of freedom of the hinge trim cover 004 in the length direction X and the height direction Z of the vehicle body is limited, and the consistency of the hinge trim cover 004 and the gooseneck hinge 003 is realized.

The utility model provides a backdoor and car backdoor installation component has following advantage:

1. the back door is made of metal materials, so that the manufacturing cost of the back door is reduced;

2. at least three connecting points are arranged between the empennage and the back door metal plate, and a diversion trench is formed at the front end of the back door metal plate, so that the connection strength of the empennage is improved, and the air flow passing property is ensured;

3. the second installation part of the tail wing is arranged on the back door metal plate and the windshield to shield the junction of the back door metal plate and the windshield, so that the appearance texture of the back door is improved;

4. the length direction of the connecting hinge for connecting the back door and the car roof metal plate is arranged along the length direction of the car body, so that the longitudinal supporting force of the connecting hinge is enhanced, and the connecting strength is ensured.

What has been described above is merely the principles and preferred embodiments of the present application. It should be noted that, for a person skilled in the art, several other modifications can be made on the basis of the principle of the present application, and these should also be considered as the scope of protection of the present application.

Claims (10)

1. The back door (001) with the tail wing is characterized by comprising a back door metal plate (01) and a tail wing (02) installed on the back door metal plate (01), wherein the tail wing (02) comprises two first installation parts (21) and at least one second installation part (22), and the first installation part (21) and the second installation part (22) are connected with the back door metal plate (01);

the two first installation parts (21) are arranged at two ends of the tail wing (02) in the width direction of the vehicle body, the second installation part (22) is arranged between the two first installation parts (21), and two sides of each second installation part (22) form a flow guide channel (03);

fixed part (11), every are all provided with at the ascending both ends of back door panel beating (01) in automobile body width direction first installation department (21) and one fixed part (11) are connected, fixed part (11) are provided with bellied water conservancy diversion portion (12), two towards one side of automobile body front end form guiding gutter (13) between water conservancy diversion portion (12).

2. The tailgate (001) according to claim 1, characterized in that both side surfaces of the second mounting portion (22) are inclined gradually from bottom to top in a vehicle body height direction toward the first mounting portion (21) or the second mounting portion (22) opposed thereto;

the first installation part (21) faces the side face of the second installation part (22) and gradually faces one side of the second installation part (22) from bottom to top.

3. The tailgate (001) according to claim 1, characterized in that the first mounting portion (21) comprises a positioning structure (211) and a fixing structure (212), the positioning structure (211) is pre-positioned on the fixing portion (11) by a positioning member (213) during mounting, and then the fixing structure (212) and the fixing portion (11) are fixedly connected by a first fastening member (214).

4. The tailgate (001) according to claim 1, characterized in that the tailgate (001) further comprises a windshield (04) embedded in the tailgate sheet metal (01), the second mounting section (22) comprises a sheet metal fixing structure (221) and a glass fixing structure (222), the sheet metal fixing structure (221) is connected with the tailgate sheet metal (01) by a second fastener (223), the glass fixing structure (222) is connected with the windshield (04) by a third fastener (224), and a watertight assembly (42) is further arranged between the glass fixing structure (222) and the windshield (04).

5. An automobile back door mounting assembly, characterized by comprising a roof sheet metal (002), gooseneck hinges (003) and a back door (001) as claimed in any one of claims 1 to 4, wherein the back door (001) is hinged to the roof sheet metal (002) through two gooseneck hinges (003), and the length directions of the two gooseneck hinges (003) are arranged along the length direction of an automobile body.

6. The automotive tailgate mounting assembly according to claim 5, characterized in that two gooseneck hinges (003) are respectively connected to two of the fixing portions (11) of the tailgate (001), each gooseneck hinge (003) comprising a hinged fixing female (05) and a gooseneck rotating male (06), the fixing female (05) connecting the roof sheet metal (002), the gooseneck rotating male (06) connecting the fixing portions (11).

7. The automotive tailgate mounting assembly according to claim 6, characterized in that the fixed female member (05) comprises a female member bottom plate (52) connected with the roof sheet metal (002), and two female member support plates (53) extend from the female member bottom plate (52) along two sides in the length direction towards one side far away from the roof sheet metal (002);

rotatory public piece (06) of gooseneck include with public piece bottom plate (63) that back of the body door (001) is connected, public piece bottom plate (63) are kept away from along length direction's both sides limit orientation one side of back of the body door (001) extends two public piece backup pads (64).

8. The automotive tailgate mounting assembly according to claim 6, characterized in that a hinge reinforcement (114) is mounted on the fastening portion (11), the hinge reinforcement (114) being provided with at least three connecting surfaces (1141) for connection to the fastening portion (11), any two of the connecting surfaces (1141) not being in the same plane and not being parallel.

9. The automotive tailgate mounting assembly according to claim 5, further comprising a hinge trim cover (004), the hinge trim cover (004) covering over the gooseneck hinge (003) on the roof sheet metal (002).

10. The automobile back door mounting assembly as claimed in claim 9, wherein the gooseneck hinge (003) is provided with at least two engaging holes (54), one side of the hinge cover (004) facing the gooseneck hinge (003) is provided with at least two claws (07), and each claw (07) is correspondingly engaged in one of the engaging holes (54).

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