CN216380974U - Trunk lid opening device for vehicle and vehicle equipped with the same - Google Patents

Abstract

The present invention relates to a trunk lid opening device for a vehicle and a vehicle equipped with the same, the trunk lid opening device including a first mounting assembly mounted on a vehicle body; a second mounting assembly mounted at one end of a hinge arm of the trunk lid; the first ends of the first connecting arm and the second connecting arm are hinged to two sides of the first mounting assembly respectively; the first ends of the third connecting arm and the fourth connecting arm are hinged to two sides of the second mounting assembly respectively; the second end of the first connecting arm and the second end of the third connecting arm are hinged with each other, and the second end of the second connecting arm and the second end of the fourth connecting arm are hinged with each other; a first torsion spring provided at a position where the first and third link arms are hinged to provide a moment to open the first and third link arms relative to each other; and the second torsion spring is arranged at the position where the second connecting arm and the fourth connecting arm are hinged so as to provide moment for expanding the second connecting arm and the fourth connecting arm relative to each other. The utility model saves space and is not easily influenced by temperature.

Description

Trunk lid opening device for vehicle and vehicle equipped with the same

Technical Field

The present invention relates to a vehicle, and more particularly, to a trunk lid opening device for a vehicle and a vehicle equipped with the same.

Background

The trunk lid opening mode of the existing automobile generally comprises two modes:

one is to adopt a combination of a four-bar linkage and a gas lifting device, wherein the gas lifting device is sensitive to temperature and is easily affected by temperature change to cause unstable performance.

Another is a combination of hinge arms and a torsion bar, which generally includes two hinge arms and two torsion bars integrally connected, and a connecting portion of the two torsion bars spans across the trunk in the width direction of the vehicle body, resulting in additional space occupying the trunk. In addition, this approach is difficult to control during opening of the trunk lid, especially at very high opening rates near the end of the opening process, and can bounce off after the trunk lid reaches a limit position.

Therefore, there is a need for further improvement in the existing trunk lid opening manner.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems of the prior art, the present invention provides a trunk lid opening device for a vehicle and a vehicle equipped with the same, which drives rotation of a connecting arm by torque of a torsion spring to open a trunk lid.

According to a first aspect of the present invention, there is provided a trunk lid opening device for a vehicle, comprising: a first mounting assembly mounted on the vehicle body; a second mounting assembly mounted at one end of a hinge arm of the trunk lid; the first end of the first connecting arm and the first end of the second connecting arm are hinged to two sides of the first mounting assembly respectively; the first end of the third connecting arm and the first end of the fourth connecting arm are hinged to two sides of the second mounting assembly respectively; wherein the second end of the first connecting arm and the second end of the third connecting arm are hinged to each other by a first long pin, and the second end of the second connecting arm and the second end of the fourth connecting arm are hinged to each other by a second long pin; a first torsion spring provided at a position where the first and third link arms are hinged to provide a moment to relatively open the first and third link arms; and the second torsion spring is arranged at the position where the second connecting arm and the fourth connecting arm are hinged, so that moment for enabling the second connecting arm and the fourth connecting arm to be relatively opened is provided.

Preferably, the first mounting assembly comprises: a first ball socket mounted on the vehicle body; a first connecting rod having one end connected to the first ball socket; the first sleeve is connected to the other end of the first connecting rod, and two sides of the first sleeve are respectively provided with a first extending part; the first end of the first connecting arm and the first end of the second connecting arm are respectively hinged to the first extending parts on two sides of the first sleeve.

Preferably, the second mounting assembly comprises: a second ball socket installed at one end of the hinge arm; a second connecting rod having one end connected to the second ball socket; the second sleeve is connected to the other end of the second connecting rod, and two sides of the second sleeve are respectively provided with a second extending part; the first end of the third connecting arm and the first end of the fourth connecting arm are respectively hinged to the second extending parts on two sides of the second sleeve.

Preferably, two ends of the first torsion spring respectively abut against the inside of the first connecting arm and the inside of the third connecting arm, and two ends of the second torsion spring respectively abut against the inside of the second connecting arm and the fourth connecting arm.

Preferably, the first connecting arm, the second connecting arm, the third connecting arm and the fourth connecting arm are respectively provided with a limiting structure inside; two ends of the first torsion spring are respectively abutted against the limiting structure of the first connecting arm and the limiting structure inside the third connecting arm so as to limit the sliding of the first torsion spring; two ends of the second torsion spring are respectively abutted against the limiting structure of the second connecting arm and the limiting structure inside the fourth connecting arm so as to limit the sliding of the second torsion spring.

Preferably, the trunk lid opening device for a vehicle further includes an elastic member having both ends connected to the first mounting assembly and the second mounting assembly, respectively.

Preferably, the first mounting assembly and the second mounting assembly are each provided with a hole in the middle for suspending both ends of the elastic member.

Preferably, the first torsion spring and the second torsion spring are different torsion springs.

Preferably, the first torsion spring and the second torsion spring are the same torsion spring.

According to a second aspect of the present invention, there is provided a vehicle equipped with the trunk lid opening device as described in the first aspect.

According to the trunk lid opening device for the vehicle, the moment of the torsion spring drives the connecting arm to rotate, so that the hinge arm is driven to rotate, the trunk lid is opened, the space is saved, and the trunk lid opening device is not dependent on an air lifting device and is not easily influenced by temperature.

The method and apparatus of the present invention have other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following embodiments incorporated herein, which together serve to explain certain principles of the utility model.

Drawings

Fig. 1 is a schematic structural view showing a trunk lid opening device for a vehicle of the present invention;

FIG. 2 is an exploded perspective view of FIG. 1;

FIG. 3 is a schematic structural view of the first sleeve;

FIG. 4 is a schematic structural view of a second sleeve;

FIG. 5 is a schematic view of a first connecting arm;

FIG. 6 is a schematic view of the first connecting arm from a further perspective;

FIG. 7 is a schematic view of the internal structure of the first link arm, illustrating the position relationship between the position-limiting structure on the side plate and the first spring;

FIG. 8 is a schematic structural view of a third link arm;

FIG. 9 is a schematic diagram of the third link arm from yet another perspective;

FIG. 10 illustrates a schematic of the articulation of the first and third connecting arms;

FIG. 11 is a schematic view of the trunk lid opening device of the present invention installed in a vehicle;

FIG. 12 is a partial enlarged view of FIG. 11 at B;

FIG. 13 is a schematic view of FIG. 12 with the first socket omitted;

FIG. 14 is a schematic view of the connection at A in FIG. 11, illustrating the connection of the second socket and the hinge arm;

FIG. 15 is a schematic view of FIG. 14 with the second socket omitted;

fig. 16 is a schematic view of the state of the trunk lid opening apparatus at the initial stage of the trunk lid opening process;

fig. 17 is a schematic view of the state of the trunk lid opening apparatus at the end stage of the trunk lid opening process.

It is to be understood that the drawings are not necessarily to scale, presenting a simplified representation of various features illustrative of the utility model, illustrative of the basic principles of the utility model. The specific design features disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes, will be determined in part by the particular application and environment in which it is used.

In the drawings, like numerals refer to like or equivalent parts throughout the several views of the drawings.

Detailed Description

Reference will now be made in detail to various embodiments of the utility model, examples of which are illustrated in the accompanying drawings and described below. While the utility model will be described in conjunction with the exemplary embodiments, it will be understood that this description is not intended to limit the utility model to these exemplary embodiments. On the contrary, the utility model is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the utility model as defined by the appended claims.

A trunk lid opening device for a vehicle of the present invention will be described with reference to fig. 1 to 17.

As shown in fig. 1 to 17, a trunk lid opening device for a vehicle of the present invention includes: a first mounting assembly, a second mounting assembly, a first connecting arm 4, a second connecting arm 5, a third connecting arm 10, a fourth connecting arm 11, a first torsion spring 6 and a second torsion spring 8; the first mounting assembly is mounted on the vehicle body 700; the second mounting assembly is mounted at one end of a hinge arm 900 of the trunk lid;

a first end of the first connecting arm 4 and a first end of the second connecting arm 5 are respectively hinged to two sides of the first mounting component;

a first end of a third connecting arm 10 and a first end of a fourth connecting arm 11 are hinged to two sides of the second mounting assembly respectively; the second end of the first connecting arm 4 and the second end of the third connecting arm 10 are hinged to each other by a first long pin 7, and the second end of the second connecting arm 5 and the second end of the fourth connecting arm 11 are hinged to each other by a second long pin 9; a first torsion spring 6 is provided at a position where the first and third connecting arms 4 and 10 are hinged to provide a moment to relatively open the first and third connecting arms 4 and 10; the second torsion spring 8 is provided at a position where the second connecting arm 5 and the fourth connecting arm 11 are hinged to provide a moment that causes the second connecting arm 5 and the fourth connecting arm 11 to be relatively opened.

The utility model provides a trunk lid opening device for a vehicle, which is horizontally or slightly obliquely arranged in a trunk of a vehicle body.

Specifically, the trunk lid opening device for a vehicle provided by the present invention is provided in front of the hinge arm 900 (in the direction of the nose of the vehicle), one end of the trunk lid opening device is connected to the vehicle body, the other end of the trunk lid opening device is connected to one end of the hinge arm 900 near the nose of the vehicle, and one end of the hinge arm 900 near the tail of the vehicle is connected to the inner surface of the trunk lid.

After the lock catch of the trunk lid is opened, the first connecting arm 4 and the third connecting arm 10 are relatively opened by the torque of the first torsion spring 6, and the second connecting arm 5 and the fourth connecting arm 11 are relatively opened by the torque of the second torsion spring 8, so that the distance between the first mounting assembly and the second mounting assembly is increased, and the hinge arm 900 is further pushed to rotate, and the trunk lid is opened.

In one embodiment, as shown in fig. 1, 2, 3, 11 and 12, the first mounting assembly includes:

a first ball socket 1 mounted on the vehicle body 700;

a first connecting rod 2 having one end connected to the first ball socket 1;

a first sleeve 3 connected to the other end of the first connecting rod 2, the first sleeve 3 having first extending portions 301 provided at both sides thereof;

wherein, the first end of the first connecting arm 4 and the first end of the second connecting arm 5 are respectively hinged to the first extending parts 301 at two sides of the first sleeve 3.

In one embodiment, one end of the first connection rod 2 is inserted into the interior of the first ball socket 1 and fixed together, and the other end of the first connection rod 2 is welded with the first sleeve 3.

In one embodiment, with reference to fig. 1 and 2, the first end of the first connecting arm 4 and the first end of said second connecting arm 5 are hinged to the first extensions 301 of both sides of the first sleeve 3 by a short pin 12 and a short pin 14, respectively.

In one embodiment, the first extensions 301 of both sides of the first sleeve 3 extend towards the first connecting arm 4 and said second connecting arm 5, respectively.

In one embodiment, referring cooperatively to fig. 11-13, first ball socket 1 is mounted to a ball head 702 on vehicle body 700, ball head 702 being mounted to vehicle body 700 via a bracket 701.

In one embodiment, referring to fig. 3, the first sleeve 3 is provided with a hole 302 in the middle for hanging one end of the elastic member 16 to be described later.

In one embodiment, as shown in fig. 1, 2, 4, 11 and 14, the second mounting assembly comprises:

a second ball socket 19 installed at one end of the hinge arm 900;

a second connecting rod 18 having one end connected to the second ball socket 19;

a second sleeve 17 connected to the other end of the second connecting rod 18, the second sleeve 17 being provided at both sides thereof with second extension parts 1701, respectively;

wherein the first end of the third connecting arm 10 and the first end of the fourth connecting arm 11 are respectively hinged to the second extension portion 1701 at both sides of the second sleeve 17.

In one embodiment, one end of the second connecting rod 18 is inserted into the interior of the second ball socket 19 and fixed together, and the other end of the second connecting rod 18 is welded with the second sleeve 17.

In one embodiment, referring to fig. 1 and 2 in combination, the first end of the third link arm 10 and the first end of the fourth link arm 11 are hinged to the second extension 1701 on both sides of the second sleeve 17 by a short pin 13 and a short pin 15, respectively.

In one embodiment, the second extension portions 1701 at both sides of the second sleeve 17 extend toward the third and fourth connection arms 10 and 11, respectively.

In one embodiment, referring cooperatively to fig. 11, 14 and 15, a second socket 19 is mounted to ball head 901 at one end of hinge arm 900.

In one embodiment, referring to fig. 4, the second sleeve 17 is provided with a hole 1702 at the middle for hanging the other end of the elastic member 16 to be described later.

The trunk lid opening device for a vehicle provided by the present invention is disposed in front of the hinge arm 900, i.e., the second ball socket 19 is connected to an end of the hinge arm 900 near the nose of the vehicle, and an end of the hinge arm 900 near the tail of the vehicle is connected to an inner surface of the trunk lid.

Since the first ball socket 1 is mounted on the vehicle body and the second ball socket 19 is mounted on the movable hinge arm 900, the movable space of the second ball socket 19 is larger than that of the first ball socket 1, so that the length of the second connecting rod 18 is larger than that of the first connecting rod 2, and the second ball socket 19 is prevented from interfering with other structures when moving in the trunk as much as possible.

In one embodiment, the two ends of the first torsion spring 6 respectively abut against the inside of the first connecting arm 4 and the third connecting arm 10 to provide a moment for relatively expanding the first connecting arm 4 and the third connecting arm 10, and the two ends of the second torsion spring 8 respectively abut against the inside of the second connecting arm 5 and the fourth connecting arm 11 to provide a moment for relatively expanding the second connecting arm 5 and the fourth connecting arm 11.

In one embodiment, the first connecting arm 4, the second connecting arm 5, the third connecting arm 10 and the fourth connecting arm 11 are each provided with a limiting structure inside; wherein, two ends of the first torsion spring 6 respectively abut against the limit structure of the first connecting arm 4 and the limit structure inside the third connecting arm 10 to limit the sliding of the first torsion spring; the two ends of the second torsion spring 8 respectively abut against the limiting structure of the second connecting arm 5 and the limiting structure of the inner part of the fourth connecting arm 11 to limit the sliding of the second torsion spring.

The first connecting arm 4, the second connecting arm 5, the third connecting arm 10 and the fourth connecting arm 11 have the same structure and similar connection relationship, and the structure and connection relationship of the connecting arms will be described in detail below with reference to fig. 5 to 10 by taking the first connecting arm 4 and the third connecting arm 10 as an example.

In one embodiment, referring collectively to fig. 5-7, the first connecting arm 4 includes an integrally designed connecting plate 401, a connecting plate 402, and a side plate 403, wherein both side edges of the side plate 403 are connected to the edges of the same side of the connecting plate 401 and the connecting plate 402.

The connecting plate 401 and the connecting plate 402 are symmetrically arranged, a first end of the connecting plate 401 and a first end of the connecting plate 402 are integrally formed or abut against each other to form a first end of the first connecting arm 4, a second end of the connecting plate 401 and a second end of the connecting plate 402 together form a second end of the first connecting arm 4, a hole 404 is formed at the first end of the first connecting arm 4, a preset distance is reserved between the second end of the connecting plate 401 and the second end of the connecting plate 402, and holes 405 are respectively formed at the second end of the connecting plate 401 and the second end of the connecting plate 402.

The short pin 12 passes through the hole 404 and the hole on the first extension 301 of one side of the first sleeve 3 to effect the articulation of the first connecting arm 4 and the first extension 301 of one side of the first sleeve 3.

Since the first torsion spring 6 is in a relatively compressed state, both ends of the first torsion spring 6 slide in the first connecting arm 4 and the third connecting arm 10 in a direction away from the first long pin 7 (see fig. 1 for cooperation).

The inner surface of the side plate 403 is provided with a stopper 406, and one end 601 of the first torsion spring 6 extending between the connecting plate 401 and the connecting plate 402 abuts against the stopper 406 to prevent the first torsion spring 6 from sliding away from the first long pin 7 (see fig. 1 and 7 in cooperation).

In one embodiment, referring to fig. 8 and 9 in combination, the third connecting arm 10 comprises a connecting plate 1001, a connecting plate 1002 and a side plate 1003 which are integrally designed, wherein two side edges of the side plate 1003 are connected to the edges of the same side of the connecting plate 1001 and the connecting plate 1002.

The connecting plate 1001 and the connecting plate 1002 are symmetrically arranged, a first end of the connecting plate 1001 and a first end of the connecting plate 1002 are integrally formed or abut against each other to form a first end of the third connecting arm 10, a second end of the connecting plate 1001 and a second end of the connecting plate 1002 jointly form the third connecting arm 10, a hole 1004 is formed in the first end of the third connecting arm 10, a preset distance is reserved between the second end of the connecting plate 1001 and the second end of the connecting plate 1002, and holes 1005 are formed in the second end of the connecting plate 1001 and the second end of the connecting plate 1002 respectively.

A short pin 13 passes through holes 1004 and a hole in the second extension 1701 of one side of the second sleeve 17 to effect the hinging of the third connecting arm 10 and the second extension 1701 of one side of the second sleeve 17.

The long pin 7 passes through the hole 405 of the first connecting arm 4 and the hole 1005 of the third connecting arm 10 to realize the hinge joint of the first connecting arm 4 and the third connecting arm 10 (see fig. 5 to 10 in cooperation).

The main portion of the first torsion spring 6 may be disposed between the second end of the first connecting arm 4 and the second end of the third connecting arm 10 and fitted around the outer periphery of the first long pin 7. One end 601 of the first torsion spring 6 is inserted into a space between the connection plate 401 and the connection plate 402 and abuts against the side plate 403 to apply a moment to the side plate 403, and the other end of the first torsion spring 6 is inserted into a space between the connection plate 1001 and the connection plate 1002 and abuts against the side plate 1003 to apply a moment to the side plate 1003, thereby enabling the first spring 6 to provide a moment to cause the first connection arm 4 and the third connection arm 10 to be relatively opened.

The side plate 1005 of the third connecting arm 10 is also provided with a limiting structure, which is the same as the limiting structure 406 of the side plate 403 of the first connecting arm 4, and will not be described again.

The second connecting arm 5 has the same structure and the same specific connection relation as the first connecting arm 4, the fourth connecting arm 11 has the same structure and the same specific connection relation as the third connecting arm 10, and the second torsion spring 8 has the same connection relation as the first torsion spring 6, which is not described in detail herein.

The first connecting arm 4, the second connecting arm 5, the third connecting arm 10 and the fourth connecting arm 11 form a diamond structure, the first torsion spring 6 and the second torsion spring 8 are assembled on two sides of the diamond structure, and the relative opening angle of the first connecting arm 4 and the third connecting arm 10 (namely the included angle of two ends of the first torsion spring 6) is equal to the relative opening angle of the second connecting arm 5 and the fourth connecting arm 11 (namely the included angle of two ends of the second torsion spring 8).

In the whole process of opening the trunk lid, both ends of the first torsion spring 6 and both ends of the second torsion spring 8 are always in a relatively compressed state, the moment of the first torsion spring 6 causes the first connecting arm 4 and the third connecting arm 10 to be relatively opened (i.e., the first end of the first connecting arm 4 and the first end of the third connecting arm 10 are away from each other), and the moment of the second torsion spring 8 causes the second connecting arm 5 and the fourth connecting arm 11 to be relatively opened (i.e., the first end of the second connecting arm 5 and the first end of the fourth connecting arm 11 are away from each other), so that the distance between the first ball socket 1 and the second ball socket 19 is increased.

In one embodiment, the trunk lid opening apparatus for a vehicle of the present invention further includes an elastic member 16, both ends of the elastic member 16 are respectively hung in a hole 302 in the middle of the first sleeve 3 and a hole 1702 in the middle of the second sleeve 17 (see fig. 1 to 4 in a matching manner), when the trunk lid is opened to a certain position, the elastic member 16 is in a stretched state to have a tensile force, and as the distance between the first ball socket 1 and the second ball socket 19 increases, the tensile force of the elastic member gradually increases to hinder the increase of the distance between the first ball socket 1 and the second ball socket 19, thereby reducing the opening speed of the trunk lid at the end stage of the opening process and avoiding the rebound and vibration of the trunk lid caused by the excessively fast opening speed of the trunk lid.

In one embodiment, the elastic member 16 is an elastic band or spring.

In one embodiment, the first torsion spring 6 and the second torsion spring 8 may be the same spring, that is, the first torsion spring 6 and the second torsion spring 8 are selected to provide the same moment under the same opening angle, for example, a total moment of 700N · M is required to provide when the trunk lid is opened, and the first torsion spring 6 and the second torsion spring 8 may both be selected to have a maximum moment of 350N · M.

In one embodiment, the first torsion spring 6 and the second torsion spring 8 may be different springs, that is, the first torsion spring 6 and the second torsion spring 8 are selected to provide different torques at the same opening angle, for example, a total torque of 700N · M is required to provide when the trunk lid is opened, the first torsion spring 6 is selected to be a spring having a maximum torque of 300N · M, and the second torsion spring 8 is selected to be a spring having a maximum torque of 400N · M. The first torsion spring 6 and the second torsion spring 8 do not need to be the same torsion spring, as long as the sum of the total torque meets the requirement.

The present invention also provides a vehicle comprising two hinge arms 900 and two above described boot lid opening devices.

The trunk lid opening device is installed horizontally or slightly obliquely in the trunk of the vehicle body.

Each trunk lid opening device is provided in front of a corresponding hinge arm 900, one end of the trunk lid opening device is connected to the vehicle body, the other end of the trunk lid opening device is connected to one end of the hinge arm 900 near the nose of the vehicle, and one end of the hinge arm 900 near the tail of the vehicle is connected to the inner surface of the trunk lid.

In the trunk, the two trunk cover opening devices are mutually independent, a connecting part is not required to be arranged like the existing hinge arm, and the space of the trunk is saved.

The operation of the trunk lid opening device for a vehicle of the present invention will be described with reference to the accompanying drawings.

Referring to fig. 11 to 15 in combination, a trunk lid opening device is installed horizontally or slightly obliquely in a trunk of a vehicle body, the trunk lid opening device is disposed in front of a hinge arm 900, a first ball socket 1 of the trunk lid opening device is connected to a vehicle body 700, a second ball socket 19 of the trunk lid opening device is connected to one end of the hinge arm 900 near a nose of the vehicle, and one end of the hinge arm 900 near a tail of the vehicle is connected to an inner surface of the trunk lid.

Both ends of the first torsion spring 6 and both ends of the second torsion spring 8 are always in a relatively compressed state; the first torsion spring 6 provides a moment to make the first and third connecting arms 4 and 10 relatively open (i.e., the first end of the first connecting arm 4 and the first end of the third connecting arm 10 are away from each other), and the second torsion spring 8 provides a moment to make the second and fourth connecting arms 5 and 11 relatively open (i.e., the first end of the second connecting arm 5 and the first end of the fourth connecting arm 11 are away from each other).

When the trunk lid is in the closed state, the trunk lid opening device is in the state shown in fig. 16.

When the trunk lid needs to be opened, the trunk lid is unlocked, under the action of the torque provided by the first torsion spring 6 and the torque provided by the second torsion spring 8, the first connecting arm 4 and the third connecting arm 10 are relatively opened (namely, the first end of the first connecting arm 4 and the first end of the third connecting arm 10 are mutually far away), the second connecting arm 5 and the fourth connecting arm 11 are relatively opened (namely, the first end of the second connecting arm 5 and the first end of the fourth connecting arm 11 are mutually far away), so that the distance between the first ball socket 1 and the second ball socket 19 is increased, the first ball socket 1 is mounted on the vehicle body 700 and cannot be displaced along the front and back of the vehicle body, the second ball socket 19 can move towards the tail direction close to the vehicle body, the hinge arm is further pushed to rotate, and the trunk lid is opened.

When the trunk lid is opened to a certain position (i.e., after the distance between the first ball socket 1 and the second ball socket 19 is increased to a certain length), the length of the elastic member 16 is elongated to have a tensile force, and the tensile force of the elastic member is gradually increased as the distance between the first ball socket 1 and the second ball socket 19 is increased to hinder the increase of the distance between the first ball socket 1 and the second ball socket 19, thereby reducing the opening speed of the trunk lid at the end stage of the opening process and preventing the trunk lid from bouncing and vibrating due to an excessively fast opening speed of the trunk lid.

When the trunk lid is fully opened, the trunk lid opening device is in the state shown in fig. 17.

When the trunk lid needs to be closed, a user applies a downward force to the trunk lid, the trunk lid applies a torque to the trunk lid opening device through the hinge arm 900, the torque causes the first connecting arm 4 and the third connecting arm 10 to be relatively closed against the resistance of the torque of the first torsion spring 6, and causes the second connecting arm 5 and the fourth connecting arm 11 to be relatively closed against the resistance of the torque of the second torsion spring 8, so that the distance between the first ball socket 1 and the second ball socket 19 is shortened, and the trunk lid is closed.

As the distance between the first ball socket 1 and the second ball socket 19 is shortened, the length of the elastic member 16 is gradually shortened until the free length is recovered, and at the initial stage of closing the trunk (when the length of the elastic member 16 is not recovered to the free length), the tensile force of the elastic member 16 also assists the external force of the user to shorten the distance between the first ball socket 1 and the second ball socket 19.

When the distance between the first ball socket 1 and the second ball socket 19 of the trunk lid opening device is shortened to the state shown in fig. 16, the trunk lid completely closes the trunk.

For convenience in explanation and accurate definition in the appended claims, the terms "upper", "lower", "inner", "outer", "upper", "lower", "upward", "downward", "front", "rear", "back", "inside", "outside", "inward", "outward", "inside", "outside", "inner", "outer", "forward", "rearward" are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. The foregoing description is not intended to be exhaustive or to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable others skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications thereof. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. A trunk lid opening device for a vehicle, characterized by comprising:

a first mounting assembly mounted on the vehicle body;

a second mounting assembly mounted at one end of a hinge arm of the trunk lid;

the first end of the first connecting arm and the first end of the second connecting arm are hinged to two sides of the first mounting assembly respectively;

the first end of the third connecting arm and the first end of the fourth connecting arm are hinged to two sides of the second mounting assembly respectively; wherein the second end of the first connecting arm and the second end of the third connecting arm are hinged to each other by a first long pin, and the second end of the second connecting arm and the second end of the fourth connecting arm are hinged to each other by a second long pin;

a first torsion spring provided at a position where the first and third link arms are hinged to provide a moment to relatively open the first and third link arms; and

and the second torsion spring is arranged at the position where the second connecting arm and the fourth connecting arm are hinged, so that moment for enabling the second connecting arm and the fourth connecting arm to be relatively opened is provided.

2. The trunk lid opening device for a vehicle according to claim 1, wherein the first mounting assembly includes:

a first ball socket mounted on the vehicle body;

a first connecting rod having one end connected to the first ball socket;

the first sleeve is connected to the other end of the first connecting rod, and two sides of the first sleeve are respectively provided with a first extending part;

the first end of the first connecting arm and the first end of the second connecting arm are respectively hinged to the first extending parts on two sides of the first sleeve.

3. The trunk lid opening device for a vehicle according to claim 1, wherein the second mounting assembly includes:

a second ball socket installed at one end of the hinge arm;

a second connecting rod having one end connected to the second ball socket;

the second sleeve is connected to the other end of the second connecting rod, and two sides of the second sleeve are respectively provided with a second extending part;

the first end of the third connecting arm and the first end of the fourth connecting arm are respectively hinged to the second extending parts on two sides of the second sleeve.

4. The trunk lid opening device for the vehicle according to claim 1, wherein both ends of the first torsion spring abut against the inside of the first connecting arm and the third connecting arm, respectively, and both ends of the second torsion spring abut against the inside of the second connecting arm and the fourth connecting arm, respectively.

5. The trunk lid opening device for the vehicle according to claim 4, wherein the first connecting arm, the second connecting arm, the third connecting arm and the fourth connecting arm are each provided with a stopper structure inside;

two ends of the first torsion spring are respectively abutted against the limiting structure of the first connecting arm and the limiting structure inside the third connecting arm so as to limit the sliding of the first torsion spring;

two ends of the second torsion spring are respectively abutted against the limiting structure of the second connecting arm and the limiting structure inside the fourth connecting arm so as to limit the sliding of the second torsion spring.

6. The trunk lid opening device for a vehicle according to claim 1, further comprising an elastic member having both ends connected to the first mounting assembly and the second mounting assembly, respectively.

7. The trunk lid opening device for the vehicle according to claim 6, wherein the first mounting assembly and the second mounting assembly are each provided at a central portion thereof with a hole for suspending both ends of the elastic member.

8. The trunk lid opening device for a vehicle according to claim 1, wherein the first torsion spring and the second torsion spring are different torsion springs.

9. The trunk lid opening device for a vehicle according to claim 1, wherein the first torsion spring and the second torsion spring are the same torsion spring.

10. A vehicle equipped with the trunk lid opening device for a vehicle according to any one of claims 1 to 9.

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