Hinge structure for trunk lid of vehicle

Abstract

The utility model relates to a hinge structure for a trunk lid of a vehicle. One end of the hinge arm is hinged to a first position of the hinge bracket; one end of the torsion bar is hinged to a second position of the hinge bracket; the first end of the hinge connecting rod is hinged to the hinge arm, and the second end of the hinge connecting rod is hinged to the other end of the torsion bar; the adjusting assembly is installed between the hinge connecting rod and the hinge arm and can provide forward torque for rotation of the hinge arm in the initial stage and the middle stage of opening of the trunk lid. According to the hinge structure for the trunk lid of the vehicle, the trunk lid can be opened stably, and the hinge structure has the advantages of being simple in structure, low in cost and high in adaptability.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a hinge structure for a trunk lid of a vehicle. Background Art

[0002] Usually, the trunk lid of a vehicle is mounted on the vehicle body through a hinge structure, and the trunk lid is rotated to a predetermined height through the cooperation of the hinge arm and the torsion bar (torsion bar), thereby opening the trunk compartment. However, it is difficult to control the rotation speed of the trunk lid during the process of opening the trunk lid in this way, especially in the final stage of opening the trunk lid, the trunk lid rotates very fast, and will rebound after rotating to the maximum angle, which will reduce the user experience and cause a greater impact on the torsion bar, thereby reducing the durability of the torsion bar.

[0003] In order to solve the above problem, a common method is to add an adjustment device to control the torque generated by the torsion bar so that the torque changes evenly, thereby realizing the smooth opening of the trunk lid. For example, the structure disclosed in Chinese utility model patent CN211422248U. However, this method has the disadvantages of complex structure, high cost and difficulty in assembly and adjustment.

[0004] Another way is to add a buffer component to the traditional hinge structure to slow down the speed of the torsion bar driving the trunk lid, so as to achieve smooth opening of the trunk lid. For example, the structure disclosed in Chinese invention patent CN113250560B. However, the buffer component arranged on the inner side of the hinge arm needs to be provided with a corresponding predetermined space on the inner side of the hinge arm, which results in low adaptability of the buffer component.

[0005] The information disclosed in the background part of the present invention is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the utility model provides a hinge structure for a trunk lid of a vehicle, which can realize smooth opening of the trunk lid and has the characteristics of simple structure, low cost and higher adaptability.

[0007] According to the first aspect of the utility model, the utility model provides a hinge structure for a trunk lid of a vehicle, comprising: a hinge bracket; a hinge arm, one end of which is hinged to a first position of the hinge bracket; a torsion bar, one end of which is hinged to a second position of the hinge bracket; a hinge link, a first end of which is hinged to the hinge arm, and a second end of which is hinged to the other end of the torsion bar; and an adjustment assembly, which is installed between the hinge link and the hinge arm and can provide a positive torque for the rotation of the hinge arm in the initial stage and the middle stage of opening the trunk lid.

[0008] According to an exemplary embodiment of the utility model, the adjustment assembly includes: an auxiliary link, which is "L"-shaped, one end of the auxiliary link is hinged to a position of the hinge link close to the second end, and the other end of the auxiliary link is provided with a roller, and the roller can be pressed against the hinge arm in the initial stage and the middle stage of opening the trunk lid, and roll along the hinge arm; and an elastic member, one end of which is connected to the bending portion of the auxiliary link, and the other end of which is connected to the hinge arm, and the elastic member is preset with an elastic tensile force.

[0009] According to an exemplary embodiment of the utility model, the auxiliary link is provided with a connecting hole at the bending portion, the other end of the auxiliary link is provided with an axial hole and an axis inserted into the axial hole, the roller is mounted to the axis and can rotate along the axis, and the roller is located on the side of the auxiliary link that is more easily in contact with the hinge arm.

[0010] According to an exemplary embodiment of the utility model, the hinge arm is provided with a first hinge axis at a third position; the hinge link includes a first hinge link and a second hinge link which are arranged facing each other, the first end of the first hinge link and the first end of the second hinge link are engaged with each other, and the second end of the first hinge link and the second end of the second hinge link are hinged to the first hinge axis and are respectively located on both sides of the hinge arm.

[0011] According to an exemplary embodiment of the utility model, the hinge arm is provided with a connecting pin at the fourth position, and a limiting sleeve is provided between the end of the connecting pin and the hinge arm, and the end of the connecting pin and the limiting sleeve are provided on the side of the hinge arm close to the second hinge link.

[0012] According to an exemplary embodiment of the utility model, hooks are respectively provided at both ends of the elastic member, one of the hooks is connected to the connecting hole, and the other of the hooks is connected to the connecting pin and is located between the end of the connecting pin and the limiting sleeve.

[0013] According to an exemplary embodiment of the utility model, the first position is higher and farther back than the second position; the third position has a predetermined distance from the end of the hinge arm hinged to the first position; the fourth position is closer to the end of the hinge arm hinged to the first position than the third position.

[0014] According to an exemplary embodiment of the utility model, a first slot with an opening facing backward is provided at the second position of the hinge bracket, a second slot with an opening facing forward is provided at the second end of the hinge link, one end of the torsion bar is sleeved in the first slot, and the other end of the torsion bar is sleeved in the second slot.

[0015] According to an exemplary embodiment of the present utility model, the hinge link is provided with a slot sleeve at the position of the second slot, and a stop block is provided opposite to the inner side of the slot sleeve.

[0016] According to the second aspect of the utility model, the utility model provides a hinge structure for a trunk lid of a vehicle, comprising: a hinge bracket; a hinge arm, one end of which is hinged to a first position of the hinge bracket; a torsion bar, one end of which is hinged to a second position of the hinge bracket; a hinge link, a first end of which is hinged to the hinge arm, and a second end of which is hinged to the other end of the torsion bar; and an adjustment assembly, which is installed between the hinge link and a predetermined position of the vehicle body and can provide a positive torque for the rotation of the hinge arm in the initial stage and the middle stage of opening the trunk lid.

[0017] Through the above implementation scheme, the hinge structure of the trunk lid of the vehicle of the utility model is provided with an adjustment component to cooperate with the torsion bar to provide a positive torque for the rotation of the hinge arm in the initial stage and the middle stage of the trunk lid opening, so that the hinge structure of the trunk lid of the vehicle of the utility model can reduce the preset torque of the torsion bar by reducing the weight of the torsion bar while meeting the driving force required for opening the trunk lid, which is not only beneficial to reduce material costs, but also can realize the smooth opening of the trunk lid, ensuring the user experience.

[0018] At the same time, the hinge structure for the trunk lid of the vehicle of the utility model has the characteristics of simple structure, easy installation and debugging, and higher adaptability, and has more advantages in market competition. The device of the utility model has other characteristics and advantages, which will be obvious from the drawings and subsequent embodiments incorporated herein, or will be described in detail in the drawings and subsequent embodiments incorporated herein, which are used together to explain the specific principles of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of a hinge structure for a trunk lid of a vehicle according to an exemplary embodiment of the utility model.

[0020] Figure 2 It is an exploded schematic diagram of a hinge structure for a trunk lid of a vehicle according to an exemplary embodiment of the present utility model.

[0021] Figure 3 It is a schematic assembly diagram of a partial structure of a hinge structure for a trunk lid of a vehicle according to an exemplary embodiment of the present utility model.

[0022] Figure 4 It is an exploded schematic diagram of an auxiliary link of a hinge structure for a trunk lid of a vehicle according to an exemplary embodiment of the present utility model being hinged to a hinge link.

[0023] FIG. 5A to FIG. 5C Schematic diagram of the torque provided by the torsion bar for the rotation of the hinge arm in the initial stage, middle stage and final stage of opening the vehicle's trunk lid.

[0024] FIG. 6A to FIG. 6B A schematic diagram of the torque provided by the adjustment assembly for the rotation of the hinge arm in the initial and intermediate stages of opening the trunk lid of the vehicle.

[0025] Description of reference numerals:

[0026] 100: hinge bracket 110: first position

[0027] 120: second position 121: first slot

[0028] 200: hinge arm 210: connecting pin

[0029] 220: Limiting sleeve 230: First hinge axis

[0030] 300: Torsion bar

[0031] 400: hinge link 410: first hinge link

[0032] 420: second hinge link 430: second hinge axis

[0033] 440: Second card slot 450: Card slot sleeve

[0034] 451: Stop block

[0035] 500: Adjustment assembly 510: Auxiliary connecting rod

[0036] 511: Roller 512: Connection hole

[0037] 513: shaft hole 514: shaft

[0038] 515: hinge hole 520: elastic member

[0039] 521: Hook.

[0040] It should be understood that the drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of the present invention. The specific design features disclosed in the present invention (including, for example, specific dimensions, directions, positions, and shapes) will be determined in part by the specific intended application and use environment.

[0041] In the figures, like reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. DETAILED DESCRIPTION

[0042] Reference will be made in detail to various embodiments of the present invention, examples of which are presented in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the present invention to these exemplary embodiments. On the contrary, the present invention is intended to cover not only these exemplary embodiments, but also various alternative forms, modified forms, equivalent forms and other embodiments that may be included in the spirit of the present invention and within the scope defined by the appended claims.

[0043] Combine the following Figures 1 to 6B The hinge structure of the trunk lid of a vehicle according to the present invention is described.

[0044] Figure 1 It is a schematic diagram of the overall structure of a hinge structure for a trunk lid of a vehicle according to an exemplary embodiment of the utility model. Figure 2 It is an exploded schematic diagram of a hinge structure for a trunk lid of a vehicle according to an exemplary embodiment of the present utility model. Figure 3 It is a schematic assembly diagram of a partial structure of a hinge structure for a trunk lid of a vehicle according to an exemplary embodiment of the present utility model. Figure 4 It is an exploded schematic diagram of an auxiliary link of a hinge structure for a trunk lid of a vehicle according to an exemplary embodiment of the present utility model being hinged to a hinge link.

[0045] First, for the convenience of description, when describing the relative position of a specific structure in this application, the "front" refers to the forward direction of the vehicle, the "rear" refers to the backward direction of the vehicle, and the "up" refers to the upward direction of the vehicle.

[0046] like Figures 1 to 4 As shown, the hinge structure of the trunk lid of a vehicle of the present invention comprises: a hinge bracket 100 , a hinge arm 200 , a torsion bar 300 , a hinge link 400 and an adjustment assembly 500 .

[0047] The hinge bracket 100 is mounted to the rear vehicle body structure. The hinge bracket 100 has a first position 110 and a second position 120. The first position 110 may be higher and further back than the second position 120 (eg, Figure 2 and Figure 5A shown).

[0048] One end of the hinge arm 200 is hinged to the first position 110 of the hinge bracket 100. The other end of the hinge arm 200 is hinged to the trunk lid (not shown in the figure) to support the trunk lid. The hinge arm 200 is a gooseneck hinge arm.

[0049] One end of the torsion bar 300 is hinged to the second position 120 of the hinge bracket 100 . The torsion bar 300 can provide torque to the hinge arm 200 , so that the hinge arm 200 rotates around the first position 110 .

[0050] The first end of the hinge link 400 is hinged to the hinge arm 200. Specifically, the first end of the hinge link 400 is hinged to the third position of the hinge arm 200, and the third position has a predetermined distance from the end of the hinge arm 200 hinged to the first position 110, thereby providing a force arm for opening the trunk lid for the hinge link 400. The second end of the hinge link 400 is hinged to the other end of the torsion bar 300, so that the torsion bar 300 provides a torque to the hinge arm 200 through the hinge link 400, thereby causing the hinge arm 200 to rotate around the first position 110.

[0051] Furthermore, if Figure 1 , Figure 2 and Figure 4 As shown, the hinge arm 200 is provided with a first hinge shaft 230 at the third position. The hinge link 400 includes a first hinge link 410 and a second hinge link 420 disposed facing each other, a first end of the first hinge link 410 and a first end of the second hinge link 420 are engaged with each other, a second end of the first hinge link 410 and a second end of the second hinge link 420 are hinged to the first hinge shaft 230 and are respectively located on both sides of the hinge arm 200, so that the torsion bar 300 provides torque to the hinge arm 200 more stably through the hinge link 400.

[0052] The adjustment assembly 500 is installed between the hinge link 400 and the hinge arm 200, and can provide a positive torque for the rotation of the hinge arm 200 in the initial stage and the middle stage of the trunk lid opening. That is to say, the adjustment assembly 500 can provide a positive torque for the rotation of the hinge arm 200 together with the torsion bar 300 in the initial stage and the middle stage of the trunk lid opening, so that the hinge structure of the trunk lid of the vehicle of the utility model can reduce the torque provided by the torsion bar (that is, reduce the preset torsion of the torsion bar) by reducing the weight of the torsion bar when the driving force required for the trunk lid to open is met, thereby helping to reduce material costs. At the same time, in the exemplary embodiment of the utility model, as the angle of the trunk lid opening changes, the positive torque provided by the adjustment assembly 500 to the hinge arm 200 can be gradually reduced to 0, so as to prevent the trunk lid from rotating too fast in the final stage of opening, thereby realizing the smooth opening of the trunk lid and ensuring the user's experience. In addition, as an option, according to actual needs, the positive torque provided by the adjustment component 500 to the hinge arm 200 in the final stage of opening the trunk lid may not be 0, as long as the above-mentioned function can be achieved, and this is not limited to this in this article.

[0053] Specifically, Figure 1 As shown, the adjustment assembly 500 includes an auxiliary link 510 and an elastic member 520. The auxiliary link 510 is in an "L" shape, and one end of the auxiliary link 510 is hinged to a position close to the second end of the hinge link 400. Specifically, the auxiliary link 510 is in an "L" shape. Figure 3 and Figure 4 As shown, the hinge link 400 is provided with a second hinge shaft 430 at a position close to the second end. One end of the auxiliary link 510 is provided with a hinge hole 515 corresponding to the second hinge shaft 430, and the second hinge shaft 430 is inserted into the hinge hole 515 to hinge one end of the auxiliary link 510 to a position close to the second end of the hinge link 400. Preferably, one end of the auxiliary link 510 is hinged to a side of the second hinge link 420 away from the first hinge link 410. The other end of the auxiliary link 510 is provided with a roller 511. The roller 511 can be pressed against the hinge arm 200 and roll along the hinge arm 200 in the initial stage and the middle stage of the trunk lid opening. One end of the elastic member 520 is connected to the bending portion of the auxiliary link 510, the other end of the elastic member 520 is connected to the hinge arm 200, and the elastic member 520 is preset with an elastic tension. In this way, under the action of the preset elastic tension of the elastic component 520, the auxiliary link 510 can apply a resisting force to the hinge arm 200 through the hinge link 400 and the roller 511, thereby providing a positive torque for the rotation of the hinge arm 200 in the initial and intermediate stages of opening the trunk lid.

[0054] Further, in an exemplary embodiment of the present utility model, as Figures 2 to 4As shown, the auxiliary link 510 is provided with a connection hole 512 at the bent portion, and the other end of the auxiliary link 510 is provided with an axial hole 513 and an axis 514 inserted into the axial hole 513. The roller 511 is mounted on the axis 514 and can rotate along the axis 514. Preferably, the roller 511 is located on the side of the auxiliary link 510 that is more likely to contact the hinge arm 200, so as to increase the contact area between the roller 511 and the hinge arm 200, thereby making it more conducive to the rolling of the roller 511 along the hinge arm 200, and making it more conducive for the auxiliary link 510 to apply a resisting force to the hinge arm 200 through the roller 511.

[0055] Furthermore, with Figure 1 and Figure 2 As shown, the hinge arm 200 is provided with a connecting pin 210 at the fourth position, and a limiting sleeve 220 is provided between the end of the connecting pin 210 and the hinge arm 200. The end of the connecting pin 210 and the limiting sleeve 220 are provided on one side of the hinge arm 200 close to the second hinge link 420. Hooks 521 are provided at both ends of the elastic member 520, one of which is connected to the connecting hole 512 of the auxiliary link 510, and the other of the hooks 521 is connected to the connecting pin 210 and is located between the end of the connecting pin 210 and the limiting sleeve 220. The limiting sleeve 220 is used to fix the position of the hook 521 connected to the connecting pin 210 to prevent the elastic member 520 from interfering with the hinge arm 200 or the hinge link 400.

[0056] Preferably, in the exemplary embodiment of the utility model, the elastic member 520 is configured as a tension spring, and in the initial stage and the middle stage of the trunk lid opening, the tension spring is preset with elastic tension, that is, in the initial stage and the middle stage of the trunk lid opening, the tension spring is in a stretched state. Alternatively, according to the actual needs, the elastic member 520 can also be in a stretched state in the final stage of the trunk lid opening, so that the positive torque provided by the adjustment component 500 to the hinge arm 200 in the final stage of the trunk lid opening is not 0, which will not be repeated herein. In addition, the type of the elastic member 520 herein is not limited thereto, and it can be any form in the prior art, as long as it can achieve the above functions.

[0057] Furthermore, with Figure 1 and Figure 3 As shown, the fourth position is closer to the end of the hinge arm 200 hinged to the first position 110 than the third position, so as to adjust the magnitude of the positive torque provided by the adjustment assembly 500 to the hinge arm 200, and at the same time cooperate with the torque provided by the torsion bar 300 to the hinge arm 200 through the hinge link 400, so as to make the opening process of the trunk lid smoother.

[0058] According to an exemplary embodiment of the present utility model, Figure 3 and Figure 5A As shown, the second position 120 of the hinge bracket 100 is provided with a first slot 121 with an opening facing backward. The second end of the hinge link 400 is provided with a second slot 440 with an opening facing forward. One end of the torsion bar 300 is sleeved in the first slot 121, and the other end of the torsion bar 300 is sleeved in the second slot 440. Figure 4 As shown, the hinge link 400 is provided with a slot sleeve 450 at the position of the second slot 440 , and a stop block 451 is provided opposite to the inner side of the slot sleeve 450 to prevent the other end of the torsion bar 300 from escaping from the second slot 440 .

[0059] According to another exemplary embodiment of the utility model, the adjustment assembly 500 in the hinge structure of the trunk lid of the vehicle of the utility model can be installed between the hinge link 400 and the predetermined position of the vehicle body, and can provide a positive torque for the rotation of the hinge arm 200 in the initial stage and the middle stage of the trunk lid opening. Among them, the predetermined position of the vehicle body refers to the predetermined position in the trunk, such as the storage plate of the trunk. That is to say, different from the above-mentioned embodiment, one end of the elastic member 520 in this embodiment is connected to the bending portion of the auxiliary link 510, and the other end of the elastic member 520 is connected to the predetermined position of the vehicle body. In this way, under the effect of the preset elastic tension of the elastic member 520, the auxiliary link 510 can also apply a resisting force to the hinge arm 200 through the hinge link 400 and the roller 511, thereby achieving the above-mentioned technical effect.

[0060] FIG. 5A to FIG. 5C Schematic diagram of the torque provided by the torsion bar for the rotation of the hinge arm in the initial stage, middle stage and final stage of opening the vehicle's trunk lid. FIG. 6A to FIG. 6B A schematic diagram of the torque provided by the adjustment assembly for the rotation of the hinge arm in the initial and intermediate stages of opening the trunk lid of the vehicle.

[0061] The working principle of the hinge structure for the trunk lid of a vehicle of the present invention will be described below in conjunction with the accompanying drawings.

[0062] When the trunk lid is closed, Figure 5A As shown, the hinge arm 200 has not started to rotate, and the magnitude of the torque provided by the torsion bar 300 to the hinge arm 200 through the hinge link 400 relative to the hinge axis of the hinge arm 200 is:

[0063] M_tor=F_tor×Arm_tor

[0064] Wherein, F_tor is the torsion force of the torsion bar 300 acting on the hinge link 400 , and Arm_tor is the force arm relative to the hinge axis (first position 110 ) of the hinge arm 200 .

[0065] Cooperate Fig. 6A As shown, the magnitude of the torque provided by the adjustment assembly 500 to the hinge arm 200 relative to the hinge axis of the hinge arm 200 is:

[0066] M_ten=F_1×Arm_1+F_2×Arm_2+F_3×Arm_3

[0067] Among them, F_1 ​​is the pressure exerted by the auxiliary connecting rod 510 on the hinge connecting rod 400, F_2 is the pressure exerted by the auxiliary connecting rod 510 on the roller 511, F_3 is the force exerted by the elastic component 520 on the hinge arm 200 due to its own preset elastic tension, and Arm_1, Arm_2 and Arm_3 are the force arms of F_1, F_2 and F_3 relative to the hinge axis of the hinge arm 200 respectively.

[0068] At this time, the elastic member 520 is in the longest stretching state, and the torque provided by the torsion bar 300 and the adjustment assembly 500 to the hinge arm 200 is:

[0069] M=M_tor+M_ten

[0070] Among them, M_tor and M_ten are both positive moments.

[0071] In the initial stage of opening the trunk lid, Figure 5A and Fig. 6A As shown, the hinge arm 200 rotates around the first position 110 in the direction of opening the trunk lid under the action of the torque of the torsion bar 300 and the adjustment assembly 500. The stretching length of the elastic member 520 gradually decreases.

[0072] When the hinge arm 200 rotates to the first predetermined angle, the trunk lid rotates from the initial stage of opening to the middle stage of opening.

[0073] At this time, cooperate Figure 5B As shown, the magnitude of the torque provided by the torsion bar 300 to the hinge arm 200 via the hinge link 400 relative to the hinge axis of the hinge arm 200 is still:

[0074] M_tor=F_tor×Arm_tor

[0075] M_tor is the positive torque.

[0076] Cooperate Figure 6B As shown, the magnitude of the positive torque provided by the adjustment assembly 500 to the hinge arm 200 relative to the hinge axis is:

[0077] M_ten=F_1×Arm_1+F_2×Arm_2-F_3×Arm_3

[0078] At this time, the torque provided by the elastic member 520 for the hinge arm 200 due to its own preset elastic tension becomes a negative torque, but M_ten is still a positive torque.

[0079] When the hinge arm 200 rotates to the second predetermined angle, the trunk lid rotates from the middle stage of opening to the final stage of opening. Figure 5C As shown, the roller 511 of the auxiliary link 510 is separated from the hinge arm 200, and the elastic member 520 retracts from the stretched state to the natural elongated state (when the gravity of the elastic member 520 itself and the gravity of the auxiliary link 510 are ignored), and M_ten is 0, that is, the adjustment component 500 no longer provides a force for the rotation of the hinge arm 200, and the hinge arm 200 continues to rotate only under the action of the torque provided by the torsion bar 300 until the trunk lid is fully opened.

[0080] In the above process, as the rotation angle of the hinge arm 200 changes, the positive torque provided by the adjustment component 500 to the hinge arm 200 gradually decreases until it is 0, which not only ensures the smooth transition of the trunk lid in the initial, middle and final stages of opening, but also prevents the trunk lid from rotating too fast in the final stage of opening, thereby realizing the smooth opening of the trunk lid and ensuring the user experience.

[0081] At the same time, the hinge structure of the trunk lid of the vehicle of the utility model can reduce the torque provided by the torsion bar (i.e., reduce the preset torque of the torsion bar) by reducing the weight of the torsion bar while meeting the driving force required to open the trunk lid, which is beneficial to reducing material costs, and has the characteristics of simple structure, easy installation and debugging, and higher adaptability, and has more competitive advantages in the market.

[0082] For convenience of interpretation and precise definition of the appended claims, the terms "upper", "lower", "inner", "outer", "above", "below", "upper", "lower", "upward", "downward", "front", "backward", "forward", "backward", "inside", "outside", "inwardly", "outwardly", "inner", "exterior", "inner", "external", "forward", and "backward" are used to describe the features of the exemplary embodiments with reference to the positions of such features as shown in the accompanying drawings.

[0083] The description presented above of the specific exemplary embodiments of the utility model is for the purpose of illustration and description. The foregoing description is not intended to be exhaustive, nor is it intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations are possible based on the above teachings. The exemplary embodiments are selected and described in order to explain the specific principles of the utility model and its practical application, so that other technicians in the field can realize and utilize the various exemplary embodiments of the utility model and its different selected forms and modified forms. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A hinge structure for a trunk lid of a vehicle, characterized in that: include: Hinge bracket; a hinge arm, one end of which is hinged to the first position of the hinge bracket; a torsion bar, one end of which is hinged to the second position of the hinge bracket; a hinge link, a first end of which is hinged to the hinge arm, and a second end of which is hinged to the other end of the torsion bar; as well as The adjusting assembly is installed between the hinge link and the hinge arm and can provide a positive torque for the rotation of the hinge arm in the initial stage and the middle stage of opening the trunk lid.

2. The hinge structure for a trunk lid of a vehicle according to claim 1, characterized in that: The adjustment component comprises: an auxiliary link in an "L" shape, one end of the auxiliary link being hinged to a position of the hinge link close to the second end, and the other end of the auxiliary link being provided with a roller, the roller being able to press against the hinge arm and roll along the hinge arm in the initial stage and the middle stage of opening the trunk lid; and An elastic member has one end connected to the bent portion of the auxiliary link and the other end connected to the hinge arm, and the elastic member is preset with elastic tension.

3. The hinge structure for a trunk lid of a vehicle according to claim 2, characterized in that: The auxiliary link is provided with a connecting hole at the bending portion, and the other end of the auxiliary link is provided with an axial hole and an axis inserted into the axial hole, the roller is installed to the axis and can rotate along the axis, and the roller is located on the side of the auxiliary link that is more likely to contact the hinge arm.

4. The hinge structure for a trunk lid of a vehicle according to claim 3, characterized in that: The hinge arm is provided with a first hinge axis at a third position; The hinge link includes a first hinge link and a second hinge link which are arranged facing each other, the first end of the first hinge link and the first end of the second hinge link are engaged with each other, the second end of the first hinge link and the second end of the second hinge link are hinged to the first hinge axis and are respectively located on both sides of the hinge arm.

5. The hinge structure for a trunk lid of a vehicle according to claim 4, characterized in that: The hinge arm is provided with a connecting pin at the fourth position, and a limiting sleeve is provided between the end of the connecting pin and the hinge arm, and the end of the connecting pin and the limiting sleeve are provided on a side of the hinge arm close to the second hinge link.

6. The hinge structure for a trunk lid of a vehicle according to claim 5, characterized in that: Hooks are respectively arranged at both ends of the elastic member, one of the hooks is connected to the connecting hole, and the other of the hooks is connected to the connecting pin and is located between the end of the connecting pin and the limiting sleeve.

7. The hinge structure for a trunk lid of a vehicle according to claim 6, characterized in that: The first position is higher and more rearward than the second position; There is a predetermined distance between the third position and the end of the hinge arm hinged to the first position; The fourth position is closer to the end of the hinge arm hinged to the first position than the third position.

8. The hinge structure for a trunk lid of a vehicle according to claim 7, characterized in that: A first slot with an opening facing backward is provided at the second position of the hinge bracket, a second slot with an opening facing forward is provided at the second end of the hinge connecting rod, one end of the torsion bar is sleeved in the first slot, and the other end of the torsion bar is sleeved in the second slot.

9. The hinge structure for a trunk lid of a vehicle according to claim 8, characterized in that: The hinge connecting rod is provided with a slot sleeve at the position of the second slot, and a stop block is relatively provided on the inner side of the slot sleeve.

10. A hinge structure for a trunk lid of a vehicle, characterized in that: include: Hinge bracket; a hinge arm, one end of which is hinged to the first position of the hinge bracket; a torsion bar, one end of which is hinged to the second position of the hinge bracket; a hinge link, a first end of which is hinged to the hinge arm, and a second end of which is hinged to the other end of the torsion bar; as well as The adjusting assembly is installed between the hinge link and a predetermined position of the vehicle body and can provide a positive torque for the rotation of the hinge arm in the initial stage and the middle stage of opening the trunk lid.

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