Opening device and vehicle

Abstract

The utility model relates to an opening device and a vehicle, the opening device is used for a trunk lid of the vehicle, the opening device comprises at least one supporting arm, the first end of the supporting arm is rotatably connected to a base body of the vehicle, and the second end of the supporting arm is used for being connected to the trunk lid; the force applying piece is connected to the at least one supporting arm and the base body, and the force applying piece provides opening force used for opening the trunk lid through the at least one supporting arm through self deformation; and the adjusting mechanism comprises an adjusting piece connected to the force applying piece, and the adjusting piece is movably arranged and used for adjusting the deformation degree of the force applying piece so as to change the opening force. According to the opening device, stepless adjustment of the opening force of the trunk lid can be achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicles, and in particular to an opening device and a vehicle. Background Art

[0002] In the related art, the trunk lid of a vehicle is opened relative to the vehicle through a trunk lid hinge, and the trunk lid hinge includes an elastic torsion bar, which provides the opening force for opening the trunk lid. The opening force of the elastic torsion bar decreases after long-term use, but in the related art, the opening force provided by the elastic torsion bar is not adjustable, which easily causes the trunk lid to open slowly or fail to open. Therefore, in order to achieve adjustable opening force of the elastic torsion bar, in the related art, the torsion bar mounting hole is set as a three-link hole, so as to achieve three-level adjustment of the opening force by adjusting the different positions of the torsion bar inserted into the three-link hole. However, in this way, the value of adjusting the opening force is relatively single, and only three-level adjustment can be achieved, which does not provide a good user experience. Utility Model Content

[0003] The purpose of the present disclosure is to provide an opening device and a vehicle, which can achieve stepless adjustment of the opening force of the trunk lid, so as to at least partially solve the above technical problems.

[0004] In order to achieve the above-mentioned purpose, the first aspect of the present disclosure provides an opening device for a trunk lid of a vehicle, the opening device comprising: at least one support arm, a first end of the support arm being rotatably connected to a base of the vehicle, and a second end being used to be connected to the trunk lid; a force-applying member connected to at least one of the support arms and the base, the force-applying member providing an opening force for opening the trunk lid through at least one of the support arms through its own deformation; and an adjusting mechanism comprising an adjusting member connected to the force-applying member, the adjusting member being movably arranged to adjust the degree of deformation of the force-applying member to change the opening force.

[0005] Optionally, the force-applying member includes a torsion bar, which includes a force-applying portion, a first rod portion, a second rod portion and an axis portion connected in sequence, the force-applying portion is connected to the support arm, the axis portion is directly or indirectly connected to the base so as to be able to rotate relative to the base, and the adjusting member is connected to the first rod portion or the second rod portion to adjust the rotation angle of the second rod portion relative to the base.

[0006] Optionally, the at least one support arm includes a first support arm and a second support arm arranged side by side, the torsion bars are two and include a first torsion bar and a second torsion bar, the force-applying portion of the first torsion bar is connected to the first support arm, the force-applying portion of the second torsion bar is connected to the second support arm, and at least one of the first torsion bar and the second torsion bar is connected to the adjusting member.

[0007] Optionally, the opening device also includes a first mounting seat and a second mounting seat, both of which are connected to the base, the first end of the first support arm is rotatably connected to the first mounting seat, the first end of the second support arm is rotatably connected to the second mounting seat, and a slot is provided on the first mounting seat and the second mounting seat, the first rod portion of the first torsion bar abuts against the slot of the second mounting seat, and the first rod portion of the second torsion bar is adjusted by the adjusting member to adjust the distance between it and the slot of the first mounting seat.

[0008] Optionally, the adjustment mechanism further includes a base, the base is connected to the base, the adjustment member is movably connected to the base, and the adjustment member is connected to at least one of the first rod portions of the two torsion rods.

[0009] Optionally, a clamping portion is provided on the base, wherein the first rod portion of one of the torsion rods is clamped and fixed to the clamping portion, and the first rod portion of the other torsion rod is connected to the adjusting member.

[0010] Optionally, a guide portion is provided on the base, a guide hole is provided on the guide portion, and the adjusting member includes an adjusting rod movably inserted into the guide hole, and one end of the adjusting rod is sleeved on the first rod portion of the other torsion rod.

[0011] Optionally, the adjusting member further includes a rotating member, and the rotating member is threadedly connected to the adjusting rod to drive the adjusting rod to move.

[0012] Optionally, an accommodating groove for the first rod portion of the other torsion rod to pass through is provided between the guiding portion and the clamping portion.

[0013] Optionally, a clamping portion is provided on the base, and the clamping portion is used to be clamped to the base.

[0014] According to a second aspect of the present disclosure, a vehicle is provided, comprising a trunk lid, a base, and an opening device as described in any of the above schemes, wherein the base is a partition plate.

[0015] Through the above technical solution, that is, the opening device and vehicle provided by the present disclosure, when the trunk lid of the vehicle is opened, the force stored by the force-applying member through its own deformation is released to provide the support arm with the opening force to open the trunk lid. When it is necessary to actively adjust the opening force, for example, to speed up the opening speed of the trunk lid, or when the force-applying member is used for a long time and the stored force is reduced, the deformation degree of the force-applying member can be adjusted by the adjusting member of the adjusting mechanism to change the magnitude of the opening force. The adjusting member is arranged to be movably arranged, so that when the adjusting member is moved to change the deformation degree of the force-applying member, the magnitude of the opening force of the force-applying member can be adjusted steplessly. In addition, within the moving range of the adjusting member or the deformable range of the force-applying member, the opening force can also be arbitrarily adjusted within the numerical adjustment range within the moving range of the corresponding adjusting member or the deformation range of the force-applying member, and the process of adjusting the magnitude of the opening force is a gradual process, and thus a more suitable magnitude of the opening force can be selected due to the different magnitudes of the opening force of the trunk lid of different models.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0018] Figure 1 is a schematic structural diagram of the cooperation between the opening device provided in an exemplary embodiment of the present disclosure and the base of the vehicle;

[0019] Figure 2 is a structural schematic diagram of another perspective of the cooperation between the opening device provided in the exemplary embodiment of the present disclosure and the base of the vehicle;

[0020] Figure 3 yes Figure 2 A partial enlarged view of position A in the middle;

[0021] Figure 4 is a schematic structural diagram of a side view of an opening device provided in an exemplary embodiment of the present disclosure cooperating with a base of a vehicle;

[0022] Figure 5 is a front view of an opening device provided in an exemplary embodiment of the present disclosure;

[0023] Figure 6 is a bottom view of an opening device provided in an exemplary embodiment of the present disclosure cooperating with a base of a vehicle;

[0024] Figure 7 is a schematic structural diagram of the adjustment mechanism and the torsion bar provided in an exemplary embodiment of the present disclosure;

[0025] Figure 8 is a schematic side cross-sectional view of an adjustment mechanism provided in an exemplary embodiment of the present disclosure.

[0026] Description of Reference Numerals

[0027] 1-support arm; 110-first support arm; 120-second support arm; 2-base; 210-first mounting seat; 220-second mounting seat; 3-force-applying member; 310-first torsion bar; 320-second torsion bar; a-force-applying part; b-first rod; c-second rod; d-axis; 4-adjusting mechanism; 410-adjusting member; 411-adjusting rod; 412-rotating member; 420-base; 421-first clamping part; 422-guide part; 422a-guide hole; 423-second clamping part; 424-accommodating groove; 5-slot. DETAILED DESCRIPTION

[0028] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0029] In the present disclosure, unless otherwise specified, directional words such as "inside" and "outside" refer to the inside and outside relative to the outline of the component or structure itself; "first, second" and the like are intended to distinguish one element from another and have no order or importance. In addition, the same figure numbers in different reference drawings represent the same elements, and the same figure numbers in the same drawing also represent the same elements.

[0030] In a first aspect of the present disclosure, there is provided an opening device, referring to Figures 1 to 8 As shown, the opening device is used for the trunk lid of a vehicle, and the opening device includes at least one support arm 1, a force-applying member 3 and an adjusting mechanism 4. The first end of the support arm 1 is rotatably connected to the base 2 of the vehicle, and the second end is used to be connected to the trunk lid; the force-applying member 3 is connected to at least one support arm 1 and the base 2, and the force-applying member 3 provides an opening force for opening the trunk lid through at least one support arm 1 through its own deformation; the adjusting mechanism 4 includes an adjusting member 410 connected to the force-applying member 3, and the adjusting member 410 is movably arranged to adjust the deformation degree of the force-applying member 3 to change the opening force.

[0031] Through the above scheme, that is, the opening device provided by the present disclosure, when the trunk lid of the vehicle is opened, the force applied by the force member 3 is released by the force stored by its own deformation, so as to provide the support arm 1 with the opening force for opening the trunk lid. When it is necessary to actively adjust the opening force, for example, to speed up the opening speed of the trunk lid, or when the force applied by the force member 3 is used for a long time and the stored force is reduced, the deformation degree of the force applied by the force member 3 can be adjusted by the adjusting member 410 of the adjusting mechanism 4 to change the magnitude of the opening force. The adjusting member 410 is arranged to be movable, so that when the adjusting member 410 is moved to change the deformation degree of the force applied by the force member 3, the magnitude of the opening force of the force applied by the force member 3 can be adjusted steplessly. In addition, within the moving range of the adjusting member 410 or the deformable range of the force applied by the force member 3, the opening force can be arbitrarily adjusted within the numerical adjustment range corresponding to the moving range of the adjusting member 410 or the deformation range of the force applied by the force member 3, and the process of adjusting the magnitude of the opening force is a gradual process, and thus a more suitable magnitude of the opening force can be selected due to the different magnitudes of the opening force of the trunk lid of different models.

[0032] In addition, the base 2 mentioned in the above specific embodiments may be a partition plate of a vehicle or a rear top cover of a vehicle body, etc., and the present disclosure does not specifically limit this. The support arm 1 may be directly rotatably connected to the base 2, or may be indirectly rotatably connected to the base 2, for example, it may be rotatably connected to a mounting seat (a first mounting seat 210 or a second mounting seat 220 to be described below), and the mounting seat is connected to the base 2. The present disclosure does not specifically limit this.

[0033] In some embodiments, reference Figures 1 to 8 As shown, the force-applying member 3 includes a torsion bar (or torsion bar spring), which includes a force-applying portion a, a first rod portion b, a second rod portion c and an axis portion d connected in sequence, the force-applying portion a is connected to the support arm 1, and the axis portion d is directly or indirectly connected to the base 2 so as to be able to rotate relative to the base 2. Therefore, during the closing process of the trunk lid, the trunk lid will act on the force-applying portion a to cause the torsion bar to undergo torsion deformation and store the opening force. During the opening process of the trunk lid, the opening force is released, so that the torsion bar will actively push the trunk lid to open.

[0034] In this embodiment, the adjusting member 410 can be connected to the first rod portion b or the second rod portion c to adjust the rotation angle of the second rod portion c relative to the base 2. Thus, by pre-adjusting the initial torsion angle (rotation angle) of the second rod portion c, the magnitude of the opening force stored in the torsion bar when the trunk lid is closed can be adjusted. Specifically, the initial torsion angle (rotation angle) of the second rod portion c of the torsion bar can be relative to the base 2 or relative to the torsion position of the force application portion a when the trunk lid is closed. For example, the greater the rotation angle of the second rod portion c relative to the base 2 (or relative to the torsion position of the force application portion a when the trunk lid is closed) (or the greater the distance between the first rod portion b and the slot 5), the greater the opening force stored in the torsion bar. Thus, by adjusting the rotation angle of the second rod portion c relative to the base 2 (or the distance between the first rod portion b and the slot 5) through the adjusting member 410, the magnitude of the opening force can be adjusted. Thus, when the opening force needs to be actively adjusted or the opening force decreases due to long-term use of the torsion bar, the adjusting member 410 can be used for stepless adjustment.

[0035] In other embodiments not shown in the figure, the force applying member may also be constructed as other structures, for example, the force applying member may also be a coil spring connected between the support arm and the base, one end of the coil spring may be connected to the support arm, and the other end may be connected to the base through an adjusting member, thereby, by changing the position of the adjusting member, the degree of extension of the coil spring may be changed, thereby changing the opening force on the trunk lid. In this case, the adjusting member is movably connected to the base, thereby realizing stepless adjustment of the opening force.

[0036] The present disclosure will continue to expand on the example that the force-applying member includes a torsion bar. In some embodiments, reference Figures 1 to 8 As shown, at least one support arm 1 includes a first support arm 110 and a second support arm 120 arranged side by side, the number of torsion bars is two and includes a first torsion bar 310 and a second torsion bar 320, the force-applying portion a of the first torsion bar 310 is connected to the first support arm 110, the force-applying portion a of the second torsion bar 320 is connected to the second support arm 120, and at least one of the first torsion bar 310 and the second torsion bar 320 is connected to the adjusting member 410. In this way, the first support arm 110 and the second support arm 120 can be connected to the trunk lid of the vehicle together, and thus can jointly transmit the opening force of the opening device, and the first support arm 110 and the second support arm 120 can respectively provide the opening force through the torsion of the first torsion bar 310 and the second torsion bar 320, which can reduce the torsion deformation of a single torsion bar, and thus it is less likely to cause fatigue of the torsion bar and cause the problem of reduced opening force of the trunk lid, and the first support arm 110 and the second support arm 120 are arranged side by side, which can also make the trunk lid more stable during the opening process.

[0037] It should be noted that the adjustment member 410 can be connected to any one of the first torsion bar 310 and the second torsion bar 320, or can be connected to the first torsion bar 310 and the second torsion bar 320 together, and can adjust the deformation degree of the first torsion bar 310 and the second torsion bar 320, thereby realizing the adjustment of the opening force. That is, it can be understood that when the trunk lid is opened, the first torsion bar 310 and the second torsion bar 320 can be twisted together, and then the opening force transmitted to the first support arm 110 and the second support arm 120 can be applied to the two force-applying parts a of the two respectively, so as to open the trunk lid. When the first torsion bar 310 and the second torsion bar 320 cause torsional fatigue due to multiple openings of the trunk lid, the initial torsion angle of the first torsion bar 310 and / or the second torsion bar 320 can be adjusted by the adjustment member 410 to adjust the opening force.

[0038] In addition, when the torsional force of the first torsion bar 310 and / or the second torsion bar 320 is adjusted by the adjusting member 410, on the basis of satisfying the minimum value of the trunk lid opening force, the torsional force of the first torsion bar 310 and / or the second torsion bar 320 can be further increased through the stepless adjustment method of the opening device, thereby increasing the opening force of the trunk lid, so that the trunk lid can be opened faster, or the opening force of the trunk lid can be adaptively reduced according to actual conditions so that the trunk lid can be opened more slowly and smoothly. The present disclosure does not make any specific limitations on this.

[0039] In some embodiments, reference Figures 1 to 8 As shown, the opening device also includes a first mounting seat 210 and a second mounting seat 220 connected to the base 2, the first end of the first support arm 110 is rotatably connected to the first mounting seat 210, the first end of the second support arm 120 is rotatably connected to the second mounting seat 220, the first mounting seat 210 and the second mounting seat 220 are both provided with a card slot 5, the first rod portion b of the first torsion bar 310 abuts against the card slot 5 of the second mounting seat 220, and the first rod portion b of the second torsion bar 320 adjusts the distance between the card slots 5 of the first mounting seat 210 through the adjustment member 410. In this way, the first support arm 110 and the second support arm 120 can open the trunk lid more stably, for example, you can refer to Figures 1 to 5As shown, the first end of the first support arm 110 can be rotatably connected to the first mounting seat 210, and the first end of the second support arm 120 can be rotatably connected to the second mounting seat 220, and the rotatable connection can be realized by, for example, riveting. When the trunk lid is opened, the trunk lid can be stably driven to open by the rotation of the first support arm 110 and the second support arm 120, and further, during the opening of the trunk lid, the slot 5 provided on the second mounting seat 220 can also limit the first rod portion b of the first torsion bar 310, and similarly, the slot 5 provided on the first mounting seat 210 can also limit the first rod portion b of the second torsion bar 320, so that the second torsion bar 320 can be more stably abutted against the first mounting seat 210, that is, it can be understood that only when the first rod portion b of the second torsion bar 320 abuts against the first mounting seat 210, the slot 5 on the first mounting seat 210 can limit the first rod portion b of the second torsion bar 320.

[0040] In addition, the shape of the slot 5 can be any suitable shape according to the specific shapes of the first torsion bar 310 and the second torsion bar 320. For example, Figure 3 As shown, when the cross-section of the first torsion bar 310 and the second torsion bar 320 is circular, the slot 5 can be constructed as an arc-shaped slot, or, in an embodiment not shown in the figure, when the cross-section of the first torsion bar 310 and the second torsion bar 320 is rectangular, that is, the first torsion bar 310 and the second torsion bar 320 are rectangular bars, the slot 5 can also be constructed as a rectangular slot that matches the shape of the rectangular bar, and the present disclosure does not make specific limitations on this.

[0041] In some embodiments, reference Figure 7 and Figure 8 As shown, the adjustment mechanism 4 further includes a base 420, the base 420 is connected to the base 2, the adjustment member 410 is movably connected to the base 420, and the adjustment member 410 is connected to at least one of the first rod portions b of the two torsion bars. In this way, the adjustment mechanism 4 can be connected to the base 2 through the base 420, thereby improving the stability of the adjustment mechanism 4 during the process of adjusting the torsion bars, and the adjustment member 410 can be selectively connected to the first rod portions b of one or both torsion bars according to actual application requirements, so as to achieve the adjustment of the opening force of the first torsion bar 310 and the second torsion bar 320.

[0042] In some embodiments, reference Figure 7 and Figure 8 As shown, a first clamping portion 421 is provided on the base 420, wherein the first rod portion b of one torsion rod is clamped and fixed to the first clamping portion 421, and the first rod portion b of the other torsion rod is connected to the adjusting member 410. Figure 7It is exemplarily shown that the first rod portion b of the first torsion bar 310 is clamped to the first clamping portion 421, and the first rod portion b of the second torsion bar 320 is connected to the adjusting member 410. In this way, the first rod portion b of the first torsion bar 310 can be fixed and the first rod portion b of the second torsion bar 320 can be adjusted only by one adjusting mechanism 4, and the integration is higher. In other embodiments not shown in the figure, the first torsion bar 310 can also be fixed separately by an additional component, and the second torsion bar 320 can be adjusted by an adjusting member provided on the base, and the present disclosure does not specifically limit this.

[0043] In addition, it should be noted that the first clamping portion 421 can be constructed as any structure that can clamp the torsion bar, and the present disclosure does not limit this. For example, reference can be made to Figure 7 and Figure 8 As shown, the first clamping portion 421 may be provided with a clamping slot for the first torsion bar 310 to pass through and a clamping hook for stopping the first torsion bar 310 from being separated from the clamping slot, so as to limit the position of the first torsion bar 310. In another embodiment not shown in the figure, the first clamping portion 421 may also be configured as a buckle that can be detachably clamped to the base 420, so as to fix the first torsion bar 310 between the first clamping portion 421 and the base 420, which is not specifically limited in the present disclosure.

[0044] In some embodiments, reference Figure 7 and Figure 8 As shown, the base 420 is provided with a guide portion 422, and the guide portion 422 is provided with a guide hole 422a. The adjusting member 410 includes an adjusting rod 411 that is movably arranged in the guide hole 422a, and one end of the adjusting rod 411 is sleeved on the first rod portion b of another torsion bar (for example, the second torsion bar 320). In this way, the guide hole 422a on the guide portion 422 can guide the adjusting member 410, and then the position of the second torsion bar 320 can be adjusted. For example, in combination with Figure 7 and Figure 8 As shown, when the first rod portion b of the second torsion bar 320 passes through the adjusting rod 411, the second torsion bar 320 can be driven to move relative to the first torsion bar 310 by moving up and down, and then the distance between the first rod portion b of the first torsion bar 310 and the corresponding slot can be adjusted to adjust the opening force of the torsion bar.

[0045] In some embodiments, reference Figure 7 and Figure 8 As shown, the adjusting member 410 further includes a rotating member 412, which is threadedly connected to the adjusting rod 411 to drive the adjusting rod 411 to move. In this way, the rotating member 412 can drive the adjusting rod 411 to move by rotating around its own axis. For example, Figure 8As shown in FIG. 1 , when the rotating member 412 rotates, the adjusting rod 411 will move along the rotating member 412 because the adjusting rod 411 is threadedly connected to the rotating member 412. Figure 8 The torsion bar can be moved up and down in the direction of the drawing, thereby driving one torsion bar closer to or away from the other torsion bar to adjust the opening force of the torsion bar. Figure 7 and Figure 8 As shown, one end surface of the rotating member 412 can also fit the bottom of the base 420 to ensure that the torque of the torsion bar and the opening force of the trunk lid are maintained at a stable value.

[0046] It should be noted that the rotating member 412 can be constructed as any suitable structure, and the present disclosure does not specifically limit this. For example, the rotating member 412 can be a nut threadedly connected to the adjusting rod 411. When the nut rotates, it can drive the adjusting rod 411 to move along the Figure 8 It moves in the height direction to perform linear motion similar to a lead screw.

[0047] In some embodiments, reference Figure 7 and Figure 8 As shown, an accommodating groove 424 is provided between the guide portion 422 and the first clamping portion 421 for the first rod portion b of another torsion bar (eg, the second torsion bar) to pass through, so as to reduce the volume and occupied space of the base.

[0048] In some embodiments, reference Figure 7 and Figure 8 As shown, the base 420 is provided with a second clamping portion 423, and the second clamping portion 423 is used to clamp to the base 2. In this way, the base 420 can be connected to the base 2 of the vehicle through the second clamping portion 423, so that the entire adjustment mechanism 4 can be more stably installed on the base 2. The second clamping portion 423 can be configured as any suitable structure, for example, the second clamping portion 423 can be a clamping block or a clamping hook, etc., to be clamped with the bayonet provided on the base 2, and the present disclosure does not specifically limit this.

[0049] According to a second aspect of the present disclosure, a vehicle is provided, which includes a trunk lid, a base, and the opening device mentioned in the above specific embodiments, wherein the base is a partition plate, and the opening device has all the beneficial effects in the above specific embodiments.

[0050] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0052] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An opening device, characterized in that: A trunk lid for a vehicle, the opening device comprising: at least one support arm, a first end of the support arm being rotatably connected to a base of the vehicle and a second end of the support arm being adapted to be connected to the trunk lid; a force applying member connected to at least one of the support arms and the base, wherein the force applying member provides an opening force for opening the trunk lid through at least one of the support arms through its own deformation; and The adjusting mechanism comprises an adjusting member connected to the force applying member, wherein the adjusting member is movably arranged to adjust the deformation degree of the force applying member so as to change the opening force.

2. The opening device according to claim 1, characterized in that: The force-applying member includes a torsion bar, which includes a force-applying portion, a first rod portion, a second rod portion and an axis portion connected in sequence, the force-applying portion is connected to the support arm, the axis portion is directly or indirectly connected to the base so as to be able to rotate relative to the base, and the adjustment member is connected to the first rod portion or the second rod portion to adjust the rotation angle of the second rod portion relative to the base.

3. The opening device according to claim 2, characterized in that: The at least one support arm includes a first support arm and a second support arm arranged side by side, the number of the torsion bars is two and includes a first torsion bar and a second torsion bar, the force-applying portion of the first torsion bar is connected to the first support arm, the force-applying portion of the second torsion bar is connected to the second support arm, and at least one of the first torsion bar and the second torsion bar is connected to the adjusting member.

4. The opening device according to claim 3, characterized in that: The opening device also includes a first mounting seat and a second mounting seat both connected to the base, the first end of the first support arm is rotatably connected to the first mounting seat, the first end of the second support arm is rotatably connected to the second mounting seat, and a slot is provided on the first mounting seat and the second mounting seat, the first rod portion of the first torsion bar abuts against the slot of the second mounting seat, and the first rod portion of the second torsion bar is adjusted by the adjusting member to adjust the distance between the first rod portion and the slot of the first mounting seat.

5. The opening device according to claim 3, characterized in that: The adjustment mechanism further comprises a base, wherein the base is connected to the base body, the adjustment member is movably connected to the base, and the adjustment member is connected to at least one of the first rod portions of the two torsion rods.

6. The opening device according to claim 5, characterized in that: The base is provided with a first clamping portion, wherein the first rod portion of one of the torsion rods is clamped and fixed to the first clamping portion, and the first rod portion of the other torsion rod is connected to the adjusting member.

7. The opening device according to claim 6, characterized in that: The base is provided with a guide portion, the guide portion is provided with a guide hole, the adjusting member comprises an adjusting rod movably inserted into the guide hole, and one end of the adjusting rod is sleeved on the first rod portion of the other torsion rod.

8. The opening device according to claim 7, characterized in that: The adjusting member further comprises a rotating member, and the rotating member is threadedly connected to the adjusting rod to drive the adjusting rod to move.

9. The opening device according to claim 7, characterized in that: An accommodating groove for the first rod portion of the other torsion rod to pass through is provided between the guiding portion and the first clamping portion.

10. The opening device according to claim 5, characterized in that: The base is provided with a second clamping portion, and the second clamping portion is used for clamping to the base.

11. A vehicle, characterized in that: The invention comprises a trunk cover, a base body and the opening device according to any one of claims 1 to 10, wherein the base body is a partition plate.

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