Vehicle back door hinge and vehicle

Abstract

The invention provides a vehicle back door hinge and a vehicle. The vehicle back door hinge comprises a first part connected with a vehicle body, a second part connected with a back door and a protection assembly. The first part is provided with a first connecting arm, the second part is provided with a second connecting arm, and the second connecting arm is rotationally connected with the first connecting arm; the protection assembly comprises a first cover body arranged on the first connecting arm and a second cover body arranged on the second connecting arm, the first cover body is arranged at the connecting position of the first connecting arm and the second connecting arm in a covering mode, and the second cover body is arranged at the connecting position of the second connecting arm and the first connecting arm in a covering mode. According to the vehicle back door hinge, the first cover body and the second cover body are matched to cover the connecting part of the first connecting arm and the second connecting arm, so that the connecting part can be shielded, the back door hinge can be protected, and the delicate appearance of the back door hinge can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle parts, and in particular to a vehicle back door hinge. Meanwhile, the present invention also relates to a vehicle provided with the vehicle back door hinge. Background Art

[0002] At present, the hinges of the rear doors on vehicles, such as the side-opening rear door hinges, have exposed parts. After the vehicle is painted, the rear door hinges will be sprayed with paint together with the body sheet metal. The rear door hinges themselves are small in size and have poor surface flatness. After painting, the surface is prone to appearance problems such as orange peel. As the number of times the rear door is opened and closed increases, the paint on the rear door hinge surface will fall off to a certain extent, thus affecting the exquisiteness of the entire vehicle. Summary of the invention

[0003] In view of this, the present invention aims to provide a vehicle tailgate hinge to protect the tailgate hinge and also to enhance the refined appearance of the tailgate hinge.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A vehicle tailgate hinge comprises a first part connected to a vehicle body, a second part connected to the tailgate, and a protection assembly; the first part has a first connecting arm, the second part has a second connecting arm, and the second connecting arm is rotatably connected to the first connecting arm;

[0006] The protection component includes a first cover body arranged on the first connecting arm, and a second cover body arranged on the second connecting arm, the first cover body is arranged at the position where the first connecting arm and the second connecting arm are connected, and the second cover body is arranged at the position where the second connecting arm and the first connecting arm are connected.

[0007] Further, the first cover body is provided with a first clamping portion, and the first clamping portion clamps the first cover body to the first connecting arm; and / or, the second cover body is provided with a second clamping portion, and the second clamping portion clamps the second cover body to the second connecting arm.

[0008] Furthermore, the first cover body includes a side portion and an end portion arranged on one side of the side portion; the side portion is U-shaped and covers the side of the first connecting arm, and the end portion covers the end of the first connecting arm.

[0009] Furthermore, the first clamping portion includes a first clamping column arranged on the side portion, and the first connecting arm is provided with a first clamping hole; the end of the first clamping column is inserted into the first clamping hole, and there is a first preset interference amount between the first clamping column and the first connecting arm.

[0010] Furthermore, the first clamping portion includes a second clamping column arranged on the side portion, and the first connecting arm is provided with a second clamping hole; the end of the second clamping column is inserted into the second clamping hole, and there is a second preset interference amount between the second clamping column and the first connecting arm in the height direction of the whole vehicle, and a first preset gap in the width direction of the whole vehicle.

[0011] Furthermore, a first limiting rib is provided on the end portion, and the first limiting rib is used to limit the position of the first cover body in the height direction of the whole vehicle; and a second preset gap is provided between the first limiting rib and the first connecting arm.

[0012] Furthermore, the second cover body is U-shaped and is arranged on the side of the second connecting arm;

[0013] The second clamping portion includes a third clamping column arranged on the second cover body, and the second connecting arm is provided with a third clamping hole; the end of the third clamping column is inserted into the third clamping hole, and there is a third preset interference amount between the third clamping column and the second connecting arm.

[0014] Furthermore, the second clamping portion includes a fourth clamping column arranged on the second cover body, and a fourth clamping hole is provided on the second connecting arm; the end of the fourth clamping column is inserted into the fourth clamping hole, and there is a fourth preset interference amount between the fourth clamping column and the second connecting arm in the height direction of the whole vehicle, and a third preset gap in the width direction of the whole vehicle.

[0015] Furthermore, a second limiting rib is provided on the second cover body, and the second limiting rib is used to limit the position of the second cover body in the length direction of the whole vehicle; and a fourth preset gap is provided between the second limiting rib and the second connecting arm.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The vehicle tailgate hinge described in the present invention can protect and shield the connecting portion of the first connecting arm and the second connecting arm by means of a first cover body provided on the first connecting arm in the protection component covering the portion where the first connecting arm and the second connecting arm are connected, and a second cover body provided on the second connecting arm covering the portion where the second connecting arm and the first connecting arm are connected, thereby helping to improve the use effect and refined appearance of the tailgate hinge.

[0018] In addition, the first cover body is clamped on the first connecting arm through the first clamping part, which is convenient for the installation of the first cover body on the first connecting arm; the second cover body is clamped on the second connecting arm through the second clamping part, which is convenient for the installation of the second cover body on the second connecting arm. The side portion of the first cover body covers the side portion of the first connecting arm, and the end portion covers the end portion of the first connecting arm, which is conducive to further improving the protection and shielding effect of the first cover body on the first connecting arm. The first clamping column and the first clamping hole have a good clamping effect. The clamping strength of the first cover body on the first connecting arm can be improved by the first preset interference amount between the first clamping column and the first connecting arm.

[0019] In addition, the cooperation between the second clamping column and the second clamping hole is conducive to strengthening the clamping effect of the first cover body on the first connecting arm. The second preset interference amount between the second clamping column and the first connecting arm in the height direction of the whole vehicle can prevent the first cover body from moving in the height direction of the whole vehicle. By setting the first preset gap, the second clamping column can be limited in the width direction of the whole vehicle, further improving the installation reliability of the first cover body on the first connecting arm. The first limiting rib limits the position of the first cover body in the height direction of the whole vehicle, and the setting of the second preset gap is conducive to further improving the installation reliability of the first cover body on the first connecting arm.

[0020] Furthermore, the second cover body is U-shaped, has the advantages of simple structure and good cover setting effect on the side of the second connecting arm. The third clamping column and the third clamping hole cooperate, and the setting of the third preset interference amount is conducive to improving the clamping effect of the second cover body on the second connecting arm. The clamping cooperation of the third clamping column and the fourth clamping hole, as well as the fourth preset interference amount, can further improve the installation strength of the second cover body on the second connecting arm. The third preset gap is conducive to limiting the second cover body on the width of the whole vehicle, further improving the installation effect of the second cover body. The second limiting rib limits the position of the second cover body in the length direction of the whole vehicle, and the fourth preset gap is conducive to improving the installation reliability of the second cover body on the second connecting arm.

[0021] In addition, another object of the present invention is to provide a vehicle, in which the vehicle tailgate hinge as described above is provided.

[0022] The vehicle described in the present invention has the same beneficial effects as the above-mentioned vehicle tailgate hinge, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0024] Figure 1It is a schematic structural diagram of a vehicle tailgate hinge according to an embodiment of the present invention at one viewing angle;

[0025] Figure 2 is a schematic structural diagram of a vehicle tailgate hinge according to an embodiment of the present invention from another viewing angle;

[0026] Figure 3 A schematic diagram of the structure of the first part and the second part according to an embodiment of the present invention at one viewing angle;

[0027] Figure 4 It is a schematic structural diagram of the first part and the second part according to an embodiment of the present invention at another viewing angle;

[0028] Figure 5 It is a partial structural schematic diagram of the first part and the second part according to an embodiment of the present invention;

[0029] Figure 6 It is a schematic structural diagram of the first cover body according to an embodiment of the present invention at a first viewing angle;

[0030] Figure 7 It is a schematic structural diagram of the first cover body according to an embodiment of the present invention at a second viewing angle;

[0031] Figure 8 is a schematic structural diagram of the first cover body according to an embodiment of the present invention at a third viewing angle;

[0032] Fig. 9 is a schematic structural diagram of the first cover body according to an embodiment of the present invention at a fourth viewing angle;

[0033] Fig.10 is a schematic structural diagram of the first cover body according to an embodiment of the present invention at a fifth viewing angle;

[0034] Fig.11 It is a structural schematic diagram of the first clamping column according to an embodiment of the present invention;

[0035] Fig.12 This is a schematic structural diagram of the second cover body according to an embodiment of the present invention;

[0036] Fig.13 for Figure 2 AA direction cross-sectional view;

[0037] Fig.14 for Fig.13 A magnified view of the D portion;

[0038] Fig.15 for Figure 2 BB direction cross-sectional view;

[0039] Fig.16 for Figure 2CC direction cross-sectional view;

[0040] Fig.17 for Fig.16 Enlarged view of part E.

[0041] Description of reference numerals:

[0042] 1. First part; 2. Second part; 3. First cover body; 4. Second cover body;

[0043] 100, protection component; 101, connecting arm; 1011, first connecting part; 1012, first clamping hole; 1013, second clamping hole; 102, first connecting hole; 103, hinge axis; 104, first protrusion;

[0044] 201, second connecting arm; 2011, second connecting portion; 2012, third clamping hole; 2013, fourth clamping hole; 202, second connecting hole; 2014, second protrusion;

[0045] 301, end portion; 302, side portion; 303, first clamping column; 3031, insertion end portion; 3032, peripheral portion; 304, second clamping column; 305, first limiting rib;

[0046] 401, third clamping column; 402, fourth clamping column; 403, second limiting rib;

[0047] L1, first preset gap; L2, third preset gap. DETAILED DESCRIPTION

[0048] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0049] In the description of the present invention, it should be noted that the directional words such as "up, down, left, right, front, and back" used in this embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the vehicle. Among them, the up-down direction of the vehicle is also the height direction of the vehicle, the front-back direction of the vehicle is also the length direction of the vehicle, and the left-right direction of the vehicle is also the width direction of the vehicle.

[0050] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connected", and "connector" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0051] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0052] This embodiment relates to a vehicle tailgate hinge, which, in terms of overall structure, comprises a first part 1 connected to the vehicle body, a second part 2 connected to the tailgate, and a protection assembly 100. The first part 1 has a first connecting arm, the second part 2 has a second connecting arm 201, and the second connecting arm 201 is rotatably connected to the first connecting arm.

[0053] Among them, the protection component 100 includes a first cover body 3 arranged on the first connecting arm, and a second cover body 4 arranged on the second connecting arm 201. The first cover body 3 is arranged at the position where the first connecting arm and the second connecting arm 201 are connected, and the second cover body 4 is arranged at the position where the second connecting arm 201 and the first connecting arm are connected.

[0054] Based on the above overall introduction, an exemplary structure of the vehicle back door hinge in this embodiment is as follows: Figures 1 to 5 As shown in . In this embodiment, the two ends of the first part 1 are respectively provided with a plurality of first connection holes 102 for connecting with the vehicle body, and the two ends of the second part 2 are respectively provided with a plurality of second connection holes 202 for connecting with the back door. When the back door is opened, the back door drives the second part 2 to rotate relative to the first part 1. For the convenience of the following description, the structure of the vehicle back door hinge is described by taking the vehicle back door hinge being arranged between the right end of the back door and the vehicle body as an example.

[0055] As a preferred embodiment, the first connecting arm has two connecting arms 101 arranged at intervals along the height direction of the vehicle, and the second connecting arm 201 is located between the two connecting arms 101, and is rotatably connected to the first connecting arm via a hinge shaft 103 passing through itself and the ends of the two connecting arms 101. Here, by arranging the second connecting arm 201 between the two connecting arms 101 of the first connecting arm, the rotatable connection between the second connecting arm 201 and the first connecting arm is facilitated, thereby facilitating the use effect of the rear door hinge. Of course, the number of connecting arms 101 and the second connecting arm 201 in the first connecting arm can be adaptively adjusted according to the use requirements, as long as the use requirements are met.

[0056] For the convenience of description below, in this embodiment, the end of the connecting arm 101 connected to the second connecting arm 201, that is, the portion of the connecting arm 101 covered by the first cover 3 is called the first connecting portion 1011. The end of the second connecting arm 201 connected to the first connecting arm, that is, the portion of the second connecting arm 201 covered by the second cover 4 is called the second connecting portion 2011.

[0057] In this embodiment, a first clamping portion is provided on the first cover body 3, and the first clamping portion clamps the first cover body 3 onto the first connecting arm. Figure 1 As shown in the figure, the first connecting part 1011 of each connecting arm 101 is covered with a first cover body 3, and the first cover body 3 is clamped on the first connecting arm through a first clamping portion, that is, each first cover body 3 is clamped on the corresponding connecting arm 101 through the first clamping portion, which facilitates the installation of the first cover body 3 on the connecting arm 101.

[0058] like Figures 6 to 10 As shown in , the first cover body 3 includes a side portion 302 and an end portion 301 arranged on one side of the side portion 302. Among them, the side portion 302 is U-shaped and is covered on the side of the first connecting arm, and the end portion 301 is covered on the end of the first connecting arm. Through the cooperation of the end portion 301 and the side portion 302, the first connecting portion 1011 on each connecting arm 101 can be covered, which has a good protection and shielding effect, and effectively prevents the first connecting portion 1011 from being exposed and affecting the exquisiteness of the vehicle. In this embodiment, the side portion 302 and the end portion 301 are preferably processed in an integrated manner, which is conducive to improving the structural strength and assembly efficiency of the first cover body 3.

[0059] As a preferred embodiment, Figure 3 and Figure 6 and Fig.13 As shown in , the first clamping part in this embodiment includes a first clamping column 303 provided on the side portion 302, and a first clamping hole 1012 is provided on the first connecting arm. The end of the first clamping column 303 is inserted into the first clamping hole 1012, and there is a first preset interference amount between the first clamping column 303 and the first connecting arm. By inserting the first clamping column 303 into the first clamping hole 1012, the clamping of the first cover body 3 on the first connecting portion 1011 can be achieved. The setting of the first preset interference amount is conducive to improving the clamping strength between the first clamping column 303 and the first connecting arm.

[0060] For detailed structure, refer to Figures 6 to 9 As shown in FIG. 1 , the first clamping posts 303 are two posts disposed on both sides of the side portion 302, and the two first clamping posts 303 are disposed close to the inner end of the side portion 302. The first clamping holes 1012 are disposed on each connecting arm 101, and are disposed one-to-one with the first clamping posts 303. As a preferred embodiment, the structure of the first clamping posts 303 is as shown in FIG. Fig.11As shown in the figure, the first clamping column 303 is cross-shaped as a whole, and the first clamping column 303 has an insertion end 3031 located in the middle, and a peripheral portion 3032 located around the insertion end 3031, wherein the insertion end 3031 is higher than the peripheral portion 3032, and is used to be inserted into the first clamping hole 1012. The insertion end 3031 is rounded to facilitate the insertion into the first clamping hole 1012. Here, the first clamping column 303 has a simple structure, is easy to be processed and formed on the first cover body 3, and has a good clamping effect with the first clamping hole 1012.

[0061] The first preset interference amount specifically refers to that the peripheral portion 3032 and the insertion end portion 3031 of the first clamping column 303 are both in interference fit with the first connecting arm, so that the first clamping column 303 and the first connecting arm in the clamping state are in a tight state, which is conducive to improving the clamping strength of the first cover body 3 on each connecting arm 101. In this embodiment, the range of the first preset interference amount is preferably 0.1-0.3mm. When the first preset interference amount is less than 0.1mm, there is no obvious effect of improving the clamping strength. When the first preset interference amount is greater than 0.3mm, it is not conducive to the first clamping column 303 being clamped into the first clamping hole 1012, thereby being not conducive to the installation of the first cover body 3. When implemented, the first preset interference amount can be 0.1mm, 0.2mm, 0.25mm or 0.3mm, which can be determined according to the use requirements.

[0062] Furthermore, the first clamping portion in this embodiment further includes a second clamping column 304 provided on the side portion 302, and the first connecting arm is provided with a second clamping hole 1013. The insertion end 3031 of the second clamping column 304 is inserted into the second clamping hole 1013, and there is a second preset interference amount between the second clamping column 304 and the first connecting arm in the height direction of the whole vehicle, and there is a first preset gap L1 in the width direction of the whole vehicle.

[0063] In this embodiment, the clamping of the second clamping column 304 in the second clamping hole 1013 can assist the first clamping column 303 and the first clamping hole 1012, further improving the clamping strength of the first cover 3 on the first connecting arm. The second preset interference amount is used to prevent the first cover 3 from shaking in the height direction of the vehicle, and the first preset gap L1 can be used to limit the first cover 3 in the width direction of the vehicle, further improving the installation reliability of the first cover 3 in the installed state.

[0064] For detailed structure, please refer to Figure 6 and Fig.13As shown in the figure, there are preferably two second clamping posts 304, and each second clamping post 304 is respectively arranged on the other side of the first clamping post 303 relative to the open end of the side portion 302, and the second clamping hole 1013 is arranged on each connecting arm 101, and is arranged one by one corresponding to the second clamping post 304. The second clamping post 304 here is also cross-shaped, and has the same shape as the first clamping post 303.

[0065] The second preset interference amount of this embodiment specifically refers to the interference fit between the insertion end 3031 of the second clamping column 304 and the first connecting arm in the height direction of the vehicle, so that the second clamping column 304 and the first connecting arm in the clamping state are in a tight state in the height direction of the vehicle, which is beneficial to prevent the first cover body 3 from shaking along the height direction of the vehicle on each connecting arm 101. Through the double cooperation of the first clamping column 303 and the second clamping column 304, the first cover body 3 can be prevented from falling off the corresponding connecting arm 101, thereby having better installation reliability.

[0066] In this embodiment, the second preset interference amount is preferably in the range of 0.1 to 0.3 mm. When the second preset interference amount is less than 0.1 mm, there is no obvious effect of improving the clamping strength. When the second preset interference amount is greater than 0.3 mm, it is not conducive to the second clamping column 304 being clamped into the second clamping hole 1013, thereby being not conducive to the installation of the first cover body 3. When implemented, the second preset interference amount can be 0.1 mm, 0.2 mm, 0.25 mm or 0.3 mm, which can be determined according to the use requirements.

[0067] like Fig.14 As shown in , the first preset gap L1 specifically refers to the gap between the side portion 302 of the second clamping column 304 and the side wall of the first connecting arm in the width direction of the vehicle. The first preset gap L1 can limit the movement of the first cover body 3 in the width direction of the vehicle and play a good limiting role.

[0068] In specific implementation, the range of the first preset gap L1 is 0.04-0.06 mm. When the first preset gap L1 is less than 0.04 mm, the difficulty of processing and assembly is relatively large, and when the first preset gap L1 is greater than 0.06 mm, the limiting effect on the second clamping column 304 is not good. In specific implementation, the first preset gap L1 can be 0.04 mm, 0.05 mm or 0.06 mm, and the specific value can be determined according to the needs.

[0069] In order to further improve the installation effect of the first cover body 3, a first limiting rib 305 is provided on the end portion 301. The first limiting rib 305 is used to limit the position of the first cover body 3 in the height direction of the vehicle. There is a second preset gap between the first limiting rib 305 and the first connecting arm. Figure 8 and Fig. 9As shown in the figure, the first limiting rib 305 is arranged at the intersection of the end portion 301 and the side portion 302 relative to the opening of the side portion 302. As a preferred number of the first limiting ribs 305, there are two, which is conducive to improving the stability of the first limiting ribs 305 in use. Of course, the number of the first limiting ribs 305 can be increased or decreased according to needs during specific implementation.

[0070] In this embodiment, the first limiting rib 305 can play a limiting role in the process of installing the first cover body 3 along the height direction of the whole vehicle on the first connecting arm. The second preset gap can ensure the use effect of the first limiting rib 305 when the first cover body 3 is installed. The range of the second preset gap in this embodiment is preferably 0.15 to 0.3 mm. When the second preset gap is less than 0.15 mm, the difficulty of processing and assembly is greater, and when the second preset gap is greater than 0.3 mm, the limiting effect of the first limiting rib 305 is not good. In specific implementation, the second preset gap can be 0.15 mm, 0.2 mm or 0.3 mm, and the specific value can be determined according to demand.

[0071] In addition, in order to improve the structural strength of the first cover body 3, as Figure 7 As shown in , reinforcing ribs arranged along the circumferential direction may also be provided on the inner wall of the side portion 302 . The reinforcing ribs have a simple structure, are easy to arrange, and have a good reinforcing effect on the strength of the first cover body 3 .

[0072] In this embodiment, the second cover body 4 is provided with a second clamping portion, and the second clamping portion clamps the second cover body 4 to the second connecting arm 201. The second cover body 4 is clamped to the second connecting arm 201 through the second clamping portion, which has the advantages of convenient installation and easy operation. Figure 1 and Fig.12 As shown in the figure, the second cover body 4 is U-shaped and is covered on the side of the second connecting arm 201. Here, the second cover body 4 has a simple structure, is easy to process and form, and has a good shielding effect on the side of the connecting arm. The second clamping portion includes a third clamping column 401 provided on the second cover body 4, and a third clamping hole 2012 is provided on the second connecting arm 201. The insertion end 3031 of the third clamping column 401 is inserted into the third clamping hole 2012, and there is a third preset interference amount between the third clamping column 401 and the second connecting arm 201.

[0073] like Fig.12 , Figures 15 to 17As shown in the figure, the third clamping column 401 is two arranged on both sides of the second cover body 4, and the two third clamping columns 401 are arranged in a staggered manner in the height direction of the whole vehicle, and the third clamping holes 2012 are arranged in a one-to-one correspondence with the third clamping columns 401. The third clamping columns 401 are arranged in a staggered manner in the height direction of the whole vehicle, which is conducive to improving the clamping strength of the second cover body 4 on the second connecting arm 201. Of course, the solution in which the two third clamping columns 401 are at the same height is also feasible. In this embodiment, the third clamping column 401 also has the same shape as the first clamping column 303, and is also cross-shaped. It is easy to be processed and formed on the second cover body 4, and the clamping effect of cooperating with the third clamping hole 2012 is good.

[0074] The third preset interference amount in this embodiment specifically refers to that the peripheral portion 3032 and the insertion end portion 3031 of the third clamping column 401 are both in interference fit with the second connecting arm 201, so that the third clamping column 401 and the second connecting arm 201 are in a tight state, which is conducive to improving the installation effect of the second cover body 4 on the second connecting arm 201. In this embodiment, the range of the third preset interference amount is 0.1-0.3mm. When the third preset interference amount is less than 0.1mm, there is no obvious effect of improving the clamping strength. When the third preset interference amount is greater than 0.3mm, it is not conducive to the third clamping column 401 being clamped into the third clamping hole 2012, thereby being not conducive to the installation of the second cover body 4. When implemented, the third preset interference amount can be 0.1mm, 0.2mm, 0.25mm or 0.3mm, which can be determined according to the use requirements.

[0075] As a preferred embodiment, the second clamping portion further includes a fourth clamping column 402 provided on the second cover body 4, and a fourth clamping hole 2013 is provided on the second connecting arm 201. The insertion end 3031 of the fourth clamping column 402 is inserted into the fourth clamping hole 2013, and there is a fourth preset interference amount between the fourth clamping column 402 and the second connecting arm 201 in the height direction of the whole vehicle, and there is a third preset gap L2 in the width direction of the whole vehicle.

[0076] For detailed structure, please refer to Fig.12As shown in , the fourth clamping column 402 is preferably one, and the fourth clamping column 402 is arranged on the other side of the third clamping column 401 relative to the open end of the second cover body 4, and the fourth clamping hole 2013 is arranged one by one with the fourth clamping column 402. The fourth clamping column 402 here is also cross-shaped, which is the same shape as the first clamping column 303. The fourth preset interference amount specifically refers to the interference fit between the insertion end 3031 of the fourth clamping column 402 and the second connecting arm 201 in the height direction of the whole vehicle, so that the fourth clamping column 402 and the second connecting arm 201 are in a tight state, which is conducive to improving the installation effect of the second cover body 4 on the second connecting arm 201. In this embodiment, the range of the fourth preset interference amount is 0.1-0.3 mm. When the fourth preset interference amount is less than 0.1 mm, there is no obvious effect of improving the clamping strength. When the fourth preset interference amount is greater than 0.3 mm, it is not conducive to the fourth clamping column 402 being clamped into the fourth clamping hole 2013, thereby being not conducive to the installation of the second cover body 4. In practice, the fourth preset interference amount can be 0.1 mm, 0.2 mm, 0.25 mm or 0.3 mm, which can be determined according to the use requirements.

[0077] like Fig.17 As shown in , the third preset gap L2 specifically refers to the gap between the side portion 302 of the fourth clamping column 402 and the side wall of the second connecting arm 201 in the width direction of the vehicle. The third preset gap L2 is a design gap, which leaves a margin for the processing tolerance of the fourth clamping column 402. At the same time, it can also limit the movement of the second cover body 4 in the width direction of the vehicle, playing a better limiting role.

[0078] In specific implementation, the third preset gap L2 ranges from 0.15 to 0.3 mm. When the third preset gap L2 is less than 0.15 mm, the difficulty of processing and assembly is relatively large, and when the third preset gap L2 is greater than 0.3 mm, the limiting effect on the second cover body 4 is not good. In specific implementation, the third preset gap L2 can be 0.15 mm, 0.2 mm or 0.3 mm, and the specific value can be determined according to the needs.

[0079] In addition, if Fig.12 As shown in , the second cover body 4 is provided with a second limiting rib 403, and the second limiting rib 403 is used to limit the position of the second cover body 4 in the length direction of the whole vehicle, wherein a fourth preset gap is provided between the second limiting rib 403 and the second connecting arm 201.

[0080] like Fig.12 and Fig.16As shown in , the second limiting rib 403 is arranged along the circumference of the inner arm of the second cover body 4. Preferably, the second limiting members are three arranged at intervals in the height direction of the vehicle. This is conducive to improving the stability of the first limiting rib 305 in use, and can also strengthen the strength of the second cover body 4. Of course, the number of the second limiting ribs 403 can be increased or decreased according to needs during specific implementation.

[0081] In this embodiment, the second limiting rib 403 can play a limiting role in the process of installing the first cover body 3 on the second connecting arm 201 along the length direction of the vehicle. The range of the fourth preset gap in this embodiment is 0.15 to 0.3 mm. When the fourth preset gap is less than 0.15 mm, the difficulty of processing and assembly is greater, and when the fourth preset gap is greater than 0.3 mm, the second limiting rib 403 has a poor limiting effect on the second cover body 4. In specific implementation, the fourth preset gap can be 0.15 mm, 0.2 mm or 0.3 mm, and the specific value can be determined according to the needs.

[0082] In order to further improve the installation effect of the first cover body 3 on each connecting arm 101, and the installation effect of the second cover body 4 on the second connecting arm 201, first protrusions 104 are respectively provided on both sides of the first connecting portion 1011 of the connecting arm 101, and the first clamping hole 1012 and the second clamping hole 1013 are both provided on the first protrusion 104 on the same side. Second protrusions 2014 are respectively provided on both sides of the second connecting portion 2011 of the second connecting arm 201, one third clamping hole 2012 is provided on the second protrusion 2014 on the same side, and the other third clamping hole 2012 and the fourth clamping hole 2013 are provided on the second protrusion 2014 on the same side.

[0083] It should be noted that the first cover body 3 and the second cover body 4 in this embodiment should be made of a material with elastic deformation ability in the prior art, so that the cover can be set on the first connecting arm or the second connecting arm 201, and can also enhance the clamping effect on the first connecting arm or the second connecting arm 201 through its own elasticity.

[0084] As a preferred embodiment, the first cover body 3 and the second cover body 4 are both made of PC+ABS material in the prior art, which is also conducive to improving the assembly convenience of the first cover body 3 and the second cover body 4, and has good impact resistance, which is conducive to improving the assembly effect, and at the same time can also extend the service life of the first cover body 3 and the second cover body 4.

[0085] In this embodiment, the first cover body 3 and the second cover body 4 are both mounted on the first connecting arm or the second connecting arm 201 by means of snap-fitting, without the need for external connecting parts, which can effectively prevent assembly deviation and meet assembly requirements.

[0086] In addition, more connecting arms 101 and a plurality of second connecting arms 201 may be provided on the first connecting arm in the present embodiment. In this case, a cover body needs to be provided on each connecting arm 101 and the second connecting arm 201. Among them, each second connecting arm 201 is provided with the second cover body 4 mentioned above. As for the cover body on the connecting arm 101, since the positions of the plurality of connecting arms 101 are different, the cover body structures on the connecting arms 101 located at the end and the middle are also different. Specifically, in order to facilitate the distinguishing description, the two connecting arms 101 located at the end are both referred to as the end connecting arms, and each connecting arm 101 located between the two end connecting arms is referred to as the middle connecting arm.

[0087] At this time, the cover bodies on the two end connecting arms can directly adopt the structure of the above-mentioned first cover body 3. Compared with the first cover body 103, the cover bodies on the middle connecting arms only have the side parts 302 of the first cover body 103 and are U-shaped (the same structure as the second cover body 4). At this time, the first cover body 3 can also be fixed on the middle connecting arm by snapping to achieve better protection and shielding effects.

[0088] In addition, a plurality of second covers 4 may also be provided on the second connecting arm 201 , and the second connecting portion 2011 on the second connecting arm 201 may be protected and shielded by the cooperation of the plurality of second covers 4 .

[0089] To ensure that the back door can be opened and closed normally, in this embodiment, the first cover body 3 and the second cover body 4 have a gap of more than 4 mm with the back door sheet metal, and the specific value of the gap can be adjusted according to needs.

[0090] In order to further improve the decorative effect of the protection assembly 100, the first cover 3 and the second cover 4 in this embodiment adopt the same color as the back door sheet metal. Of course, in specific implementation, the colors of the first cover 3 and the second cover 4 can still be adjusted. Due to the arrangement of the first cover 3 and the second cover 4, the vehicle back door hinge does not need to be painted, which helps to reduce production costs.

[0091] When assembling the first cover body 3 in this embodiment, first align the first cover body 3 and the corresponding connecting arm 101, then buckle it on the upper connecting arm 101 from top to bottom along the height direction of the vehicle, and buckle it on the lower connecting arm 101 from bottom to top along the height direction of the vehicle. When the first clamping column 303 and the second clamping column 304 are clamped in place, the installation of the first cover body 3 is completed.

[0092] When installing the second cover body 4, first align the second cover body 4 with the second connecting arm 201, and then cover the second cover body 4 on the second connecting arm 201 from back to front along the front-to-back direction of the vehicle. When the third clamping column 401 and the fourth clamping column 402 are clamped in place, the installation of the second cover body 4 is completed.

[0093] The vehicle tailgate hinge of the present embodiment can protect and shield the connecting part of the first connecting arm and the second connecting arm 201 through the protection component 100, in which the first cover body 3 provided on the first connecting arm covers the connecting part of the first connecting arm and the second connecting arm 201, and the second cover body 4 provided on the second connecting arm 201 covers the connecting part of the second connecting arm 201 and the first connecting arm, thereby improving the use effect and refined appearance of the tailgate hinge.

[0094] Furthermore, it should be mentioned that, in order to solve the problem of paint peeling on the surface of the back door hinge, it is obviously possible to set an integrated cover body outside the first connecting arm and the second connecting arm 201. However, the inventor found in the design process that when an integrated cover body is used, it is necessary to cover not only the upper and lower end surfaces of the first connecting arm, but also the side surfaces of the first connecting arm and the second connecting arm 201, which makes processing and molding more difficult and the cost is high. Moreover, the integrated cover body of this structure is not easy to install, and the cost of later maintenance and replacement is high.

[0095] In addition, in order to satisfy the condition that the first connecting arm and the second connecting arm 201 can rotate relative to each other, it is also necessary to provide an avoidance structure in the integrated cover body. Therefore, it is necessary to consider both the problem of covering the largest area as possible and not interfering with the relative movement of the two, which brings great difficulty to the design and processing. In this embodiment, by respectively covering the cover bodies on each connecting arm of the first connecting arm and each second connecting arm, each cover body is easy to install on the corresponding connecting arm. Moreover, the area of ​​each cover body is small, which is convenient for processing. When it is repaired and replaced later, only the damaged cover body needs to be disassembled and replaced, which is low in cost and highly replaceable.

[0096] In addition, the present embodiment also relates to a vehicle, in which the vehicle tailgate hinge as described above is provided. The tailgate of the vehicle can be mounted on the vehicle body through the vehicle tailgate hinge, and the tailgate can be rear-lifting type or side-opening type, preferably side-opening type.

[0097] The vehicle of this embodiment is provided with the vehicle tailgate hinge as described above, which helps to improve the refined appearance of the vehicle.

[0098] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle back door hinge, characterized in that: It comprises a first part (1) connected to the vehicle body, a second part (2) connected to the back door, and a protection component (100); The first part (1) has a first connecting arm, the second part (2) has a second connecting arm (201), and the second connecting arm (201) is rotatably connected to the first connecting arm; The protection assembly (100) comprises a first cover body (3) provided on the first connecting arm, and a second cover body (4) provided on the second connecting arm (201), wherein the first cover body (3) is provided at a portion where the first connecting arm and the second connecting arm (201) are connected, and the second cover body (4) is provided at a portion where the second connecting arm (201) and the first connecting arm are connected.

2. The vehicle tailgate hinge according to claim 1, characterized in that: The first cover body (3) is provided with a first clamping portion, and the first clamping portion clamps the first cover body (3) onto the first connecting arm; and / or, The second cover body (4) is provided with a second clamping portion, and the second clamping portion clamps the second cover body (4) onto the second connecting arm (201).

3. The vehicle tailgate hinge according to claim 2, characterized in that: The first cover body (3) comprises a side portion (302) and an end portion (301) arranged on one side of the side portion (302); The side portion (302) is U-shaped and is disposed on the side of the first connecting arm, and the end portion (301) is disposed on the end of the first connecting arm.

4. The vehicle tailgate hinge according to claim 3, characterized in that: The first clamping portion comprises a first clamping column (303) provided on the side portion (302), and the first connecting arm is provided with a first clamping hole (1012); The end of the first clamping column (303) is inserted into the first clamping hole (1012), and a first preset interference amount is provided between the first clamping column (303) and the first connecting arm.

5. The vehicle tailgate hinge according to claim 4, characterized in that: The first clamping portion comprises a second clamping column (304) provided on the side portion (302), and the first connecting arm is provided with a second clamping hole (1013); The end of the second clamping column (304) is inserted into the second clamping hole (1013), and there is a second preset interference amount between the second clamping column (304) and the first connecting arm in the height direction of the whole vehicle, and a first preset gap L1 in the width direction of the whole vehicle.

6. The vehicle tailgate hinge according to claim 3, characterized in that: The end portion (301) is provided with a first limiting rib (305), and the first limiting rib (305) is used to limit the position of the first cover body (3) in the height direction of the whole vehicle; A second preset gap is provided between the first limiting rib (305) and the first connecting arm.

7. The vehicle tailgate hinge according to claim 2, characterized in that: The second cover body (4) is U-shaped and is arranged to cover the side of the second connecting arm (201); The second clamping portion comprises a third clamping column (401) provided on the second cover body (4), and the second connecting arm (201) is provided with a third clamping hole (2012); The end of the third clamping column (401) is inserted into the third clamping hole (2012), and a third preset interference amount is provided between the third clamping column (401) and the second connecting arm (201).

8. The vehicle tailgate hinge according to claim 7, characterized in that: The second clamping portion comprises a fourth clamping column (402) provided on the second cover body (4), and the second connecting arm (201) is provided with a fourth clamping hole (2013); The end of the fourth clamping column (402) is inserted into the fourth clamping hole (2013), and there is a fourth preset interference amount between the fourth clamping column (402) and the second connecting arm (201) in the height direction of the whole vehicle, and a third preset gap L2 in the width direction of the whole vehicle.

9. The vehicle tailgate hinge according to claim 8, characterized in that: The second cover body (4) is provided with a second limiting rib (403), and the second limiting rib (403) is used to limit the position of the second cover body (4) in the length direction of the whole vehicle; A fourth preset gap is provided between the second limiting rib (403) and the second connecting arm (201).

10. A vehicle, characterized in that: The vehicle is provided with the vehicle tailgate hinge according to any one of claims 1 to 9.

Images