CN220565908U - Hinge mechanism and vehicle - Google Patents

Abstract

The utility model discloses a hinge mechanism and a vehicle, which comprise a first mounting bracket and a four-bar mechanism, wherein the first mounting bracket comprises a frame, a first limit stop and a second limit stop; the four-bar linkage mechanism comprises a first connecting bar, a second connecting bar, a third connecting bar and a fourth connecting bar, wherein the first end of the first connecting bar and the first end of the second connecting bar are both hinged to the vehicle cover body, and the third connecting bar and the fourth connecting bar are positioned between the second end of the first connecting bar and the second end of the second connecting bar; the shaft of the third connecting rod is hinged with the first mounting bracket, the shaft of the first connecting rod is positioned between the first limit stop and the second limit stop and hinged with the first mounting bracket, and when the vehicle cover body is covered in place, the shaft of the first connecting rod is propped against the first limit stop, and when the vehicle cover body is opened in place, the shaft of the first connecting rod is propped against the second limit stop. The hinge mechanism avoids collision between the vehicle cover body and other structures of the vehicle frame, and greatly prolongs the service life of the vehicle cover body.

Description

Hinge mechanism and vehicle

Technical Field

The utility model relates to the technical field of hinges, in particular to a hinge mechanism and a vehicle.

Background

Hinges, also known as hinges, are mechanical devices used to connect two structural members and allow relative rotation between the two members, and are composed of movable components or of foldable materials. The hinge is applied to various industries, in the automotive field, the hinge structure provides connection between the automobile cover body and the automobile body structure, and simultaneously provides certain strength and rigidity for the automobile cover body, the automobile cover body is fixed on the hinge, the hinge is fixed on the automobile body, the automobile cover body can rotate along with the hinge, the opening and closing functions of the automobile cover body are realized, the direction of the automobile cover body is controlled, and the automobile cover body is matched with surrounding parts to achieve a certain opening and closing angle.

However, the hinge mechanism design of the existing vehicle cover body has the problem that the vehicle cover body can directly collide with the vehicle frame when being opened and closed, and the service life of the vehicle cover body is seriously influenced.

In summary, how to solve the problem that the service life of the vehicle cover is affected by the direct collision with the vehicle frame when the vehicle cover is opened or closed has become a technical problem to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the present utility model provides a hinge mechanism and a vehicle, so as to solve the problem that the service life of the vehicle cover is affected due to the direct collision with the vehicle frame when the vehicle cover is opened or closed.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a hinge mechanism for connecting a vehicle cover to a vehicle frame in an opening and closing manner, comprising:

the first mounting bracket is arranged on the frame and comprises a first limit stop and a second limit stop;

the four-bar linkage mechanism comprises a first connecting bar, a second connecting bar, a third connecting bar and a fourth connecting bar, wherein the first end of the first connecting bar is connected with the vehicle cover body through a first revolute pair, the first end of the second connecting bar is connected with the vehicle cover body through a second revolute pair, the first end of the third connecting bar is connected with the second end of the second connecting bar through a third revolute pair, the second end of the third connecting bar is bent and is provided with a first bending arm, the first bending arm and the second connecting bar are positioned on the same side of the third connecting bar, the root of the first bending arm is connected with the first mounting bracket through a fourth revolute pair, the tail end of the first bending arm is connected with the first end of the fourth connecting bar through a fifth revolute pair, the second end of the fourth connecting bar is connected with the first mounting bracket through a seventh revolute pair, and the first body of the second end of the first connecting bar is positioned between the first stop and the second stop; when the vehicle cover body is covered in place, the rod body of the first connecting rod abuts against the first limit stop, and when the vehicle cover body is opened in place, the rod body of the first connecting rod abuts against the second limit stop.

Optionally, a second mounting bracket arranged along the length direction of the frame is arranged on the vehicle cover body, and the first revolute pair and the second revolute pair are respectively arranged at two ends of the second mounting bracket.

Optionally, the vehicle cover also comprises a telescopic ejector rod, wherein one end of the telescopic ejector rod is hinged with the vehicle frame, and the other end of the telescopic ejector rod is hinged with the vehicle cover body, and the movement trend of providing the lifting force for the vehicle cover body is always kept; the telescopic ejector rod is a hydraulic ejector rod mechanism, and the hydraulic ejector rod mechanism comprises a hydraulic sleeve and an ejector rod which is arranged in the hydraulic sleeve and is in sliding fit with the hydraulic sleeve.

Optionally, a third mounting bracket is arranged on the frame, a fourth mounting bracket is arranged on the cover body, one end of the telescopic ejector rod is hinged to the third mounting bracket, and the other end of the telescopic ejector rod is hinged to the fourth mounting bracket.

Optionally, the vehicle cover further comprises an elastic balancing mechanism for providing a rotation moment for preventing the opening of the vehicle cover body for the four-bar linkage mechanism, one end of the elastic balancing mechanism is hinged to the first mounting bracket, the other end of the elastic balancing mechanism is hinged to the rod body of the third connecting rod, and the hinge position is located between the third revolute pair and the fourth revolute pair.

Optionally, the elastic balancing mechanism has a movement tendency of elastic elongation, and when the vehicle cover performs an opening action, the third link forces the elastic balancing mechanism to compress.

Optionally, the elastic balancing mechanism comprises an outer sleeve, a sliding rod in sliding fit with the outer sleeve and a spring piece sleeved on the sliding rod, wherein the spring piece has a movement tendency that the sliding rod slides out relative to the outer sleeve.

Optionally, the second end of the first connecting rod is bent and formed with a second bending arm, the sixth revolute pair is arranged at the tail end of the second bending arm, and the seventh revolute pair is arranged at the root of the second bending arm;

and/or, the first bending arm and the second connecting rod are positioned on the inner side or the outer side of the four-connecting-rod mechanism.

Compared with the introduction of the background technology, the hinge mechanism is used for connecting the vehicle cover body with the vehicle frame in an opening and closing manner and comprises a first mounting bracket and a four-bar mechanism, wherein the first mounting bracket is arranged on the vehicle frame and comprises a first limit stop and a second limit stop; the four-bar linkage mechanism comprises a first connecting bar, a second connecting bar, a third connecting bar and a fourth connecting bar, wherein the first end of the first connecting bar is connected with the vehicle cover body through a first revolute pair, the first end of the second connecting bar is connected with the vehicle cover body through a second revolute pair, the first end of the third connecting bar is connected with the second end of the second connecting bar through a third revolute pair, the second end of the third connecting bar is bent and is provided with a first bending arm, the first bending arm and the second connecting bar are positioned on the same side of the third connecting bar, the root of the first bending arm is connected with a first mounting bracket through a fourth revolute pair, the tail end of the first bending arm is connected with the first end of the fourth connecting bar through a fifth revolute pair, the second end of the fourth connecting bar is connected with a first mounting bracket through a seventh revolute pair, the bar of the second end of the first connecting bar is positioned between a first limit stop and a second limit stop, and the seventh revolute pair is positioned below the connecting line of the first limit stop and the second limit stop; when the vehicle cover body is covered in place, the rod body of the first connecting rod abuts against the first limit stop, and when the vehicle cover body is opened in place, the rod body of the first connecting rod abuts against the second limit stop. In the practical application process, as the first end of the first connecting rod of the four-connecting rod mechanism is connected with the vehicle cover body through the first revolute pair, the first end of the second connecting rod is connected with the vehicle cover body through the second revolute pair, the first end of the third connecting rod is connected with the second end of the second connecting rod through the third revolute pair, the second end of the third connecting rod is bent and is provided with a first bending arm, the first bending arm and the second connecting rod are positioned on the same side of the third connecting rod, the root part of the first bending arm is connected with the first mounting bracket through the fourth revolute pair, the tail end of the first bending arm is connected with the first end of the fourth connecting rod through the fifth revolute pair, the second end of the fourth connecting rod is connected with the second end of the first connecting rod through the sixth revolute pair, the body of the second end of the first connecting rod is connected with the first mounting bracket through the seventh revolute pair, the vehicle cover body and the vehicle cover body is connected with the vehicle frame, in a vehicle cover closing state, the vehicle cover body is abutted against the first limiting body, the vehicle cover body is driven by the locking piece, the second connecting rod is abutted against the second connecting rod is driven by the fourth connecting rod body, the fourth connecting rod is abutted against the second connecting rod is driven by the fourth connecting rod, the fourth connecting rod is driven by the fourth connecting rod, the second connecting rod is enabled to rotate body, and the vehicle cover body is driven by the vehicle cover body is driven to be turned to be opened, and is driven by the vehicle body is in a vehicle body; when the vehicle cover body needs to be buckled, the vehicle cover body is restored to the buckling position by applying buckling driving force, and the buckling operation is completed by locking the locking piece. Because arrange first limit stop and second limit stop on first installing support for when the bonnet lid closes to appointed position, the shaft of first connecting rod offsets with first limit stop, prevents then that the bonnet lower cover transition from leading to sinking into the cabin of frame, when the bonnet body was opened to appointed position, the shaft of first connecting rod offsets with second limit stop, prevents then that the bonnet body from opening the transition and bump with other structures of frame, has promoted the life of bonnet body greatly.

In addition, the utility model also provides a vehicle, which comprises a vehicle frame and a vehicle cover body, wherein the vehicle frame and the vehicle cover body are connected in an opening-closing way through a hinge mechanism, and the hinge mechanism is the hinge mechanism described in any scheme. Since the hinge mechanism has the above technical effects, the vehicle having the hinge mechanism should also have corresponding technical effects, and will not be described in detail herein.

Optionally, the vehicle cover body is an engine cover or a trunk cover of the vehicle.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a hinge mechanism according to an embodiment of the present utility model at a first view angle;

fig. 2 is a schematic structural diagram of a hinge mechanism according to an embodiment of the present utility model at a second view angle;

FIG. 3 is a schematic view of an exploded view of a hinge mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of an axle side structure of a hinge mechanism according to an embodiment of the present utility model mounted between a frame and a cover;

fig. 5 is a schematic side view of a hinge mechanism according to an embodiment of the present utility model mounted between a vehicle frame and a vehicle cover.

Wherein, in fig. 1-5:

the device comprises a second mounting bracket 1, a first mounting bracket 2, a first limit stop 3, a second limit stop 4, a telescopic ejector rod 5, a first connecting rod 6, a second connecting rod 7, a third connecting rod 8, a fourth connecting rod 9, an elastic balancing mechanism 10, an outer sleeve 11, a slide rod 12, a spring piece 13, a hydraulic sleeve 14, an ejector rod 15, a third mounting bracket 16, a fourth mounting bracket 17, a vehicle cover 18 and a vehicle frame 19.

Detailed Description

The utility model aims at providing a hinge mechanism and a vehicle so as to solve the problem that the service life of a vehicle cover body is influenced by collision between the vehicle cover body and a vehicle frame when the vehicle cover body is opened or closed.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model specifically provides a hinge mechanism for connecting a vehicle cover 18 to a vehicle frame 19 in an openable manner, comprising a first mounting bracket 2 and a four-bar mechanism.

The first mounting bracket 2 is disposed on the frame 19 and includes a first limit stop 3 and a second limit stop 4, and a specific structural form of the first limit stop 3 and the second limit stop 4 may be a structural form of a limit pin, or a limit stop structure thereof commonly used by those skilled in the art, so long as the purpose of limit stop can be achieved, and no more specific limitation is made herein.

The four-bar linkage mechanism specifically may include a first link 6, a second link 7, a third link 8, and a fourth link 9, where the first end of the first link 6 is connected with the vehicle cover 18 through a first revolute pair, the first end of the second link 7 is connected with the vehicle cover 18 through a second revolute pair, the first end of the third link 8 is connected with the second end of the second link 7 through a third revolute pair, the second end of the third link 8 is bent and formed with a first bending arm, the first bending arm and the second link 7 are located on the same side of the third link 8, specifically, the first bending arm and the second link 7 are located on the inner side of the four-bar linkage mechanism, or the first bending arm and the second link 7 are located on the outer side of the four-bar linkage mechanism, the root of the first bending arm is connected with the first mounting bracket 2 through a fourth revolute pair, the end of the first bending arm is connected with the first end of the fourth link 9 through a fifth revolute pair, the second end of the fourth link 9 is connected with the second end of the first link 6 through a sixth revolute pair, the first bending arm and the second end of the second link 7 is located on the same side as the first link 3 and the seventh link is located between the first and the first stopper bracket and the first stopper 3 and the second stopper 2 through the seventh revolute pair; when the cover 18 is closed in place, the rod body of the first connecting rod 6 abuts against the first limit stop 3, and when the cover 18 is opened in place, the rod body of the first connecting rod 6 abuts against the second limit stop 4.

In the practical application process of the hinge mechanism, as the first end of the first connecting rod 6 of the four-bar mechanism is connected with the vehicle cover 18 through the first revolute pair, the first end of the second connecting rod 7 is connected with the vehicle cover 18 through the second revolute pair, wherein the mounting positions of the first revolute pair and the second revolute pair on the vehicle cover 18 are sequentially arranged along the length direction of the frame 19, the first end of the third connecting rod 8 is connected with the second end of the second connecting rod 7 through the third revolute pair, the second end of the third connecting rod 8 is bent and formed with a first bending arm, the first bending arm and the second connecting rod 7 are positioned on the same side of the third connecting rod, the root part of the first bending arm is connected with the first mounting bracket 2 through the fourth revolute pair, the tail end of the first bending arm is connected with the first end of the fourth connecting rod 9 through the fifth revolute pair, the second end of the fourth connecting rod 9 is connected with the second end of the first connecting rod 6 through the sixth revolute pair, the rod body at the second end of the first connecting rod 6 is connected with the first mounting bracket 2 through a seventh revolute pair, so that the four-bar hinge connection between the vehicle cover 18 and the vehicle frame 19 is realized, in the concrete movement process, the vehicle cover 18 is in a covered state, the rod body of the first connecting rod 6 is propped against the first limit stop 3, when the locking piece of the vehicle cover 18 is opened, under the action of the driving force of opening the vehicle cover 18, the vehicle cover 18 is lifted, the first end of the second connecting rod 7 is driven to move upwards by the vehicle cover 18, then the second end of the second connecting rod 7 pulls the first end of the third connecting rod 8 to force the third connecting rod 8 to rotate around the fourth revolute pair, the first end of the fourth connecting rod 9 is linked with the second end of the third connecting rod 8, the second end of the fourth connecting rod 9 drives the second end of the first connecting rod 6 to move upwards until the rod body of the first connecting rod 6 is propped against the second limit stop 4, at this time, the driving force for opening the vehicle cover 18 cannot continuously lift the vehicle cover 18, and at that time, the vehicle cover 18 is opened in place; when the vehicle cover 18 needs to be fastened, the vehicle cover 18 is restored to the fastened position by applying the fastening driving force, and the fastening operation is completed by the locking of the locking member. Because arrange first limit stop 3 and second limit stop 4 on first installing support 2 for when the lid 18 lid closes to appointed position, the shaft of first connecting rod 6 offsets with first limit stop 3, prevents then that lid 18 lower cover transition from leading to sinking into the cabin of frame 19, and when lid 18 opened to appointed position, the shaft of first connecting rod 6 offsets with second limit stop 4, prevents then that lid 18 from opening the transition and bump with other structures of frame 19, has promoted the life of lid 18 greatly.

It should be noted that, the first mounting bracket 2 may be designed to be an integral structure with the frame 19, or may be a split type fixed connection structure, and the first mounting bracket 2 may be in a structure of an L-shaped support plate, where a bottom plate of the L-shaped bracket is mounted on the frame 19, and the first limit stop 3, the second limit stop 4, the fourth revolute pair and the seventh revolute pair are all disposed on a riser of the L-shaped bracket. Through the structural style who designs into L type extension board, on the one hand makes things convenient for first installing support 2 to be fixed to frame 19 more, on the other hand also makes things convenient for first limit stop 3, second limit stop 4, fourth revolute pair and seventh revolute pair's arrangement. It will be understood, of course, that the above-mentioned structure of the L-shaped bracket is merely an example of the structure of the first mounting bracket 2 according to the embodiment of the present utility model, and other structures, such as a convex plate or a convex block, may be adopted in the practical application process, which is not limited in detail herein. It should be noted that each of the above-mentioned revolute pairs may be specifically in a pivotal hinged structure, or in other structures of revolute pairs commonly used by those skilled in the art.

In addition, in the hinge mechanism, the distance between the mounting positions of the first revolute pair and the second revolute pair on the vehicle cover 18 along the length direction of the vehicle frame 19, the length of each link of the four-link mechanism, the mounting positions of each revolute pair, and the distance between the first limit stop 3 and the second limit stop 4 may be configured according to actual requirements, and may be changed according to different configuration requirements of the vehicle frame 19 and the vehicle cover 18 under different vehicle types, which is not limited in detail herein.

In some specific embodiments, the cover 18 may be provided with a second mounting bracket 1 disposed along a length direction of the frame 19, and the first revolute pair and the second revolute pair may be respectively disposed at two ends of the second mounting bracket 1. Through designing into this kind of structural style for four bar linkage can be connected with second installing support 1 earlier, then install second installing support 1 to the bonnet body 18 on, the installation is more convenient. The second mounting bracket 1 may specifically adopt an L-shaped bracket, so that it is more convenient to connect with a four-bar linkage and a vehicle cover. It will be understood, of course, that the second mounting bracket 1 may also be configured as an integral structure with the vehicle cover 18; the vehicle cover 18 may be provided with a first mount for mounting the first revolute pair and a second mount for mounting the second revolute pair. In the practical application process, the arrangement can be selected according to practical requirements, and the arrangement is not particularly limited herein.

In other embodiments, the hinge mechanism may further include a telescopic ejector rod 5, one end of which is hinged to the frame 19, and the other end of which is hinged to the cover 18, and the movement tendency of providing the lifting force to the cover 18 is always maintained. Through this flexible ejector pin 15 of design for after the locking piece of bonnet 18 is opened, under the jacking force effect of flexible ejector pin 5, can drive bonnet 18 and upwards overturn voluntarily, perhaps offset the gravity of a part bonnet 18, make the user lift bonnet 18 lighter.

In a further embodiment, the telescopic ejector 5 may specifically be a hydraulic ejector mechanism, where the hydraulic ejector mechanism includes a hydraulic sleeve 14 and an ejector 15 disposed in the hydraulic sleeve 14 and slidably engaged with the hydraulic sleeve 14. Through the structural style designed into hydraulic ejector rod for the jacking is more stable. It will be understood that, in the practical application process, other structures of the telescopic ejector rod 5, such as an electric push rod, may be designed, and the present utility model is not limited in detail herein.

In some specific embodiments, the frame 19 may be provided with a third mounting bracket 16, the cover 18 is provided with a fourth mounting bracket 17, one end of the telescopic ejector rod 5 is hinged to the third mounting bracket 16, and the other end of the telescopic ejector rod 5 is hinged to the fourth mounting bracket 17. By designing the third mounting bracket 16 and the fourth mounting bracket 17, the telescopic ejector rod 5 is more convenient to mount.

In a further embodiment, the hinge position of the telescopic ram 5 and the fourth mounting bracket 17 is preferably designed to be arranged close to the first rotating pair. By designing the structure, the extension displacement of the telescopic ejector rod 5 when the vehicle cover 18 is opened can be shortened as much as possible, and the requirements on the selection and design of the telescopic ejector rod 5 are greatly reduced.

In other specific embodiments, when the hinge mechanism includes the telescopic ejector rod 5, the hinge mechanism may further include an elastic balancing mechanism 10 for providing a rotation moment for preventing the opening of the vehicle cover 18 to the four-bar linkage, one end of the elastic balancing mechanism 10 is hinged to the first mounting bracket 2, the other end of the elastic balancing mechanism 10 is hinged to the rod body of the third link 8, and the hinge position is located between the third revolute pair and the fourth revolute pair. Through the design this elastic balancing mechanism 10 can offset the jacking force of a part of flexible ejector pin 5 for on the one hand, more laborsaving when making the lid 18 lock, on the other hand, the jacking force of flexible ejector pin 5 is more steady, plays the cushioning effect, when can effectively avoiding the lid 18 to open in place (i.e. the shaft of first connecting rod 6 offsets with the spacing backstop 4 of second), the impact force of first connecting rod 6 to the spacing backstop of second.

In a further embodiment, the elastic balancing mechanism 10 may be specifically designed to have an elastic elongation movement tendency, and the third link 8 forces the elastic balancing mechanism 10 to compress when the vehicle cover 18 performs the opening motion. Of course, it is also possible to design the structure with a tendency to elastically retract and to force the elastic balancing mechanism 10 to stretch by the third link 8 when the hood 18 performs the opening motion. Both structural forms can make the elastic balancing mechanism 10 play the purpose of counteracting the jacking force of the telescopic ejector rod 5, so that the cover body 18 is buckled more laborsaving and the jacking force of the telescopic ejector rod 5 is smoother. In the practical application process, the configuration can be selected according to the practical requirement, and the configuration is not particularly limited herein.

It should be noted that, the specific structure of the elastic balancing mechanism 10 may include an outer sleeve 11, a sliding rod 12 slidably engaged with the outer sleeve 11, and a spring member 13 sleeved on the sliding rod 12, where the spring member 13 has a movement tendency to slide the sliding rod 12 out of the outer sleeve 11. By designing the structure, the compression and rebound of the elastic balancing mechanism 10 are more stable. It will be understood, of course, that in the practical application process, other elastic balancing mechanisms may be designed, and are not limited in detail herein.

In some embodiments, the second end of the first connecting rod 6 may be specifically configured to bend and form a second bending arm, the sixth revolute pair is disposed at the end of the second bending arm, and the seventh revolute pair is disposed at the root of the second bending arm. The second bending arm is preferably designed in such a way that the second end of the first link 6 is bent upwards, and a shaft on the first link 6 between the first end of the corresponding first link 6 and the bending point of the first link 6 is located between the first limit stop 3 and the second limit stop 4. Through the design into above-mentioned structural style for the position of the second end arrangement sixth revolute pair of fourth connecting rod 9 can shift a certain distance, so more convenient installation and the arrangement of sixth revolute pair.

In addition, referring to fig. 4 and 5, in combination with fig. 1 to 3, the utility model further provides a vehicle, which comprises a frame 19 and a vehicle cover 18, wherein the frame and the vehicle cover are connected by a hinge mechanism in an opening and closing manner, and the hinge mechanism is the hinge mechanism described in any one of the schemes. Since the hinge mechanism has the above technical effects, the vehicle having the hinge mechanism should also have corresponding technical effects, and will not be described in detail herein.

In the practical application process, the hinge mechanisms may be mounted on both sides of the frame 19 and the cover 18. In the practical application process, the vehicle cover body may be a vehicle engine cover or a vehicle trunk cover, which is not limited in detail herein.

In addition, the hinge mechanism has better effect when being particularly applied to the opening and closing connection of the engine cover of the unmanned vehicle, and is very convenient for the maintenance and overhaul work in the engine cabin of the unmanned vehicle.

It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

It should be appreciated that the terms "system," "apparatus," "unit," and/or "module," if used herein, are merely one method for distinguishing between different components, elements, parts, portions, or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.

As used in this application and in the claims, the terms "a," "an," "the," and/or "the" are not specific to the singular, but may include the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.

Wherein, in the description of the embodiments of the present application, "/" means or is meant unless otherwise indicated, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, in the description of the embodiments of the present application, "plurality" means two or more than two.

In addition, the terms "first," "second," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

If a flowchart is used in the present application, the flowchart is used to describe the operations performed by the system according to embodiments of the present application. It should be appreciated that the preceding or following operations are not necessarily performed in order precisely. Rather, the steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the core concepts of the utility model. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (10)

1. A hinge mechanism for a vehicle cover (18) to be connected to a vehicle frame (19) in an openable manner, comprising:

the first mounting bracket (2) is arranged on the frame (19) and comprises a first limit stop (3) and a second limit stop (4);

the four-bar mechanism comprises a first connecting rod (6), a second connecting rod (7), a third connecting rod (8) and a fourth connecting rod (9), wherein the first end of the first connecting rod (6) is connected with a vehicle cover body (18) through a first revolute pair, the first end of the second connecting rod (7) is connected with the vehicle cover body (18) through a second revolute pair, the first end of the third connecting rod (8) is connected with the second end of the second connecting rod (7) through a third revolute pair, the second end of the third connecting rod (8) is bent and is provided with a first bending arm, the first bending arm and the second connecting rod (7) are positioned on the same side of the third connecting rod (8), the root of the first bending arm is connected with a first mounting bracket (2) through a fourth revolute pair, the tail end of the first bending arm is connected with the first end of the fourth connecting rod (9) through a fifth revolute pair, the second end of the fourth connecting rod (9) is connected with a second body (6) through a second revolute pair, and is positioned between the first stopping bracket (3) and the second stopping point (4) and the limit stop is positioned at the first stopping point (3); when the vehicle cover body (18) is covered in place, the rod body of the first connecting rod (6) is propped against the first limit stop (3), and when the vehicle cover body (18) is opened in place, the rod body of the first connecting rod (6) is propped against the second limit stop (4).

2. Hinge mechanism according to claim 1, characterized in that the cover (18) is provided with a second mounting bracket (1) arranged in the longitudinal direction of the frame (19), the first and second revolute pairs being arranged at the two ends of the second mounting bracket (1), respectively.

3. The hinge mechanism according to claim 1, further comprising a telescopic jack (5) hinged at one end to a frame (19) and at the other end to said cover (18), and always maintaining a movement trend that provides a jack force to said cover (18); the telescopic ejector rod (5) is a hydraulic ejector rod mechanism, and the hydraulic ejector rod mechanism comprises a hydraulic sleeve (14) and an ejector rod (15) which is arranged in the hydraulic sleeve (14) and is in sliding fit with the hydraulic sleeve (14).

4. A hinge mechanism according to claim 3, wherein a third mounting bracket (16) is provided on the frame (19), a fourth mounting bracket (17) is provided on the cover (18), one end of the telescopic ejector rod (5) is hinged on the third mounting bracket (16), and the other end of the telescopic ejector rod (5) is hinged on the fourth mounting bracket (17).

5. A hinge mechanism according to claim 3, further comprising an elastic balancing mechanism (10) for providing the four-bar linkage with a rotational moment that prevents the opening of the vehicle cover (18), one end of the elastic balancing mechanism (10) being hinged to the first mounting bracket (2), the other end of the elastic balancing mechanism (10) being hinged to the shaft of the third link (8) with a hinge position between the third revolute pair and the fourth revolute pair.

6. Hinge mechanism according to claim 5, characterized in that the elastic balancing mechanism (10) has a movement tendency of elastic elongation and that the third link (8) forces the elastic balancing mechanism (10) to compress when the vehicle cover (18) performs an opening action.

7. Hinge mechanism according to claim 5, characterized in that said elastic balancing mechanism (10) comprises an outer sleeve (11), a sliding rod (12) in sliding fit with said outer sleeve (11) and a spring member (13) fitted over said sliding rod (12), said spring member (13) having a movement tendency to slide said sliding rod (12) out with respect to said outer sleeve (11).

8. The hinge mechanism according to claim 1, wherein the second end of the first link (6) is bent and formed with a second bending arm, the sixth revolute pair is provided at a distal end of the second bending arm, and the seventh revolute pair is provided at a root portion of the second bending arm;

and/or the first bending arm and the second connecting rod (7) are positioned on the inner side or the outer side of the four-bar mechanism.

9. A vehicle comprising a frame and a cover, wherein the frame and the cover are connected by a hinge mechanism, and the hinge mechanism is as claimed in any one of claims 1 to 8.

10. The vehicle of claim 9, wherein the hood body is a hood or a trunk lid of the vehicle.