CN220849276U - Hinge and locker - Google Patents

Abstract

The utility model relates to the technical field of storage, and provides a hinge and a storage cabinet. The hinge includes: the connecting rod assembly is connected with the fixed end connecting rod and the movable end connecting rod and is in a folded state and an unfolded state; the elastic assembly comprises an acting piece and an elastic main body, the acting piece is arranged on the connecting rod assembly, and the elastic main body is arranged on the movable end connecting rod; in the process of switching the connecting rod assembly from the folding state to the unfolding state, the acting piece compresses the elastic main body under the condition that the unfolding angle of the connecting rod assembly is not larger than a preset angle; in the process of switching the connecting rod assembly from the unfolding state to the folding state, under the condition that the unfolding angle of the connecting rod assembly is not larger than a preset angle, the elastic main body drives the connecting rod assembly to switch towards the folding state. Through setting up elastic component on the loose-end connecting rod, effectively avoid invading the space of living hinge, guaranteed the compactedness of hinge, reduce the limited possibility of size structure of connecting rod assembly.

Description

Hinge and locker

Technical Field

The utility model relates to the technical field of storage, in particular to a hinge and a storage cabinet.

Background

Hinges are currently the common connection for rotational connection between two components, for example, in the connection of a door body of a locker to a locker body, hinges are often used. In order to achieve good closing performance between the door body and the locker body after being opened or closed, the existing hinge is generally provided with an elastic component in a connecting rod component. When the door body is opened, the acting part in the elastic component extrudes the elastic part, and the elastic restoring force of the elastic part enables the door body to have a closing trend. But the elastic piece occupies a large space, and the elastic piece is arranged in the connecting rod assembly and must be provided with a space avoiding the elastic main body, so that the size and the structure of the connecting rod assembly are obviously limited, and the overall structural strength and the bearing capacity of the hinge are obviously weakened.

Disclosure of utility model

The present utility model is directed to solving at least one of the technical problems existing in the related art. Therefore, the utility model provides a hinge to solve the defect that the size and the structure of a connecting rod assembly in the existing hinge are obviously limited.

The utility model further provides a storage cabinet.

An embodiment of a hinge according to the first aspect of the present utility model includes:

A fixed end connecting rod;

A movable end connecting rod;

A link assembly connecting the fixed end link and the movable end link, the link assembly having a collapsed state and an expanded state;

The elastic assembly comprises an acting piece and an elastic main body, the acting piece is arranged on the connecting rod assembly, and the elastic main body is arranged on the movable end connecting rod;

In the process of switching the connecting rod assembly from the folded state to the unfolded state, the acting piece compresses the elastic main body under the condition that the unfolding angle of the connecting rod assembly is not larger than a preset angle; in the process of switching the connecting rod assembly from the unfolding state to the folding state, under the condition that the unfolding angle of the connecting rod assembly is not larger than the preset angle, the elastic main body drives the connecting rod assembly to switch towards the folding state.

According to the hinge disclosed by the embodiment of the utility model, the elastic component is arranged on the movable end connecting rod, so that the space occupied by the hinge can be effectively avoided, the compactness of the hinge is ensured, the possibility of limited size and structure of the connecting rod component is reduced, and the overall structural strength and bearing capacity of the hinge are improved.

According to one embodiment of the present utility model, the connecting rod assembly includes:

The first end of the first connecting rod is hinged with the fixed end connecting rod;

The first end of the second connecting rod is hinged with the fixed end connecting rod, and the first end of the second connecting rod is arranged at intervals with the first end of the first connecting rod;

The first end of the third connecting rod is hinged with the first end of the movable end connecting rod, and the second end of the third connecting rod is hinged with the middle part of the second connecting rod;

The first end of the fourth connecting rod is hinged with the second end of the first connecting rod, the middle part of the fourth connecting rod is hinged with the second end of the second connecting rod, and the second end of the fourth connecting rod is hinged with the second end of the movable end connecting rod;

The fourth connecting rod is provided with the acting piece.

According to one embodiment of the present utility model, the elastic body includes a fixed seat, an elastic member, and a movable seat, the fixed seat is fixed to the movable end link, the elastic member is installed between the fixed seat and the movable seat, and the movable seat is adapted to move along a length direction of the elastic body.

According to one embodiment of the utility model, the movable seat is provided with a pin shaft, the movable end connecting rod is provided with a chute, the length direction of the chute is parallel to the length direction of the elastic main body, and the pin shaft is slidably connected with the chute.

According to one embodiment of the present utility model, the movable seat includes a seat body and a roller, the seat body is connected to the elastic member, the roller is rotatably connected to the seat body, and the roller is adapted to be in rotational engagement with the acting member.

According to one embodiment of the utility model, the acting element comprises a first arc-shaped groove and a bulge which are recessed inwards, the first arc-shaped groove is connected with the bulge, and the roller is matched with the first arc-shaped groove and the bulge to enable the connecting rod assembly to be switched between the folded state and the unfolded angle of the connecting rod assembly to be equal to a preset angle;

The roller is positioned at the bottom of the first arc-shaped groove, and the connecting rod assembly is in the folded state;

the roller is positioned at the top of the bulge, and the unfolding angle of the connecting rod assembly is equal to the preset angle.

According to one embodiment of the utility model, the acting element further comprises a second arc-shaped groove recessed inwards, the second arc-shaped groove is connected with the protrusion, and the first arc-shaped groove and the second arc-shaped groove are respectively positioned on two opposite sides of the protrusion;

The roller is matched with the second arc-shaped groove, so that the connecting rod assembly is switched between the preset angle and the limit opening angle of the connecting rod assembly;

The roller is positioned at the bottom of the second arc-shaped groove, and the connecting rod assembly is positioned at the limit opening angle.

According to one embodiment of the utility model, the third link is provided with a relief groove, at least part of the elastic body being located in the relief groove in the folded state.

According to one embodiment of the utility model, the fixed end link is formed with a mounting slot in which the link assembly is at least partially located in the folded state.

According to an embodiment of the second aspect of the present utility model, a locker includes:

The storage cabinet body is internally provided with an accommodating space, and an opening communicated with the accommodating space is formed on one side of the storage cabinet body;

the door body is arranged at the opening and is suitable for opening or closing the opening;

The connecting rod assembly is connected with the locker body and the door body and has a folded state and an unfolded state;

The elastic assembly comprises an acting piece and an elastic main body, the acting piece is fixed on the connecting rod assembly, and the elastic main body is arranged on the storage cabinet body;

In the process of switching the connecting rod assembly from the folded state to the unfolded state, the acting piece compresses the elastic main body under the condition that the unfolding angle of the connecting rod assembly is not larger than a preset angle; in the process of switching the connecting rod assembly from the unfolding state to the folding state, under the condition that the unfolding angle of the connecting rod assembly is not larger than the preset angle, the elastic main body drives the connecting rod assembly to switch towards the folding state.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic cross-sectional view of a hinge according to an embodiment of the present utility model in an unfolded state;

FIG. 2 is a schematic view of a hinge according to an embodiment of the present utility model in an unfolded state;

fig. 3 is a schematic cross-sectional view of a folded state of a hinge according to an embodiment of the present utility model.

Reference numerals:

100. a fixed end connecting rod; 110. a mounting groove;

200. A movable end connecting rod; 210. a chute;

300. A connecting rod assembly; 310. a first link; 320. a second link; 330. a third link; 331. an avoidance groove; 340. a fourth link;

400. An elastic component; 410. an action member; 411. a first arc-shaped groove; 412. a protrusion; 413. a second arc-shaped groove;

420. an elastic body; 421. a fixing seat; 422. an elastic member; 423. a movable seat; 424. a roller; 425. a base; 426. and a pin shaft.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Referring to fig. 1, a hinge according to an embodiment of the present utility model includes a fixed end link 100, a movable end link 200, a link assembly 300, and an elastic assembly 400, the link assembly 300 connecting the fixed end link 100 and the movable end link 200, the link assembly 300 having a folded state and an unfolded state (the unfolded state may refer to fig. 1, and the folded state may refer to fig. 3); the elastic assembly 400, the elastic assembly 400 includes an acting piece 410 and an elastic body 420, the acting piece 410 is disposed on the link assembly 300, the elastic body 420 is disposed on the movable end link 200; in the process of switching the link assembly 300 from the folded state to the unfolded state, the acting piece 410 compresses the elastic body 420 in the case that the unfolded angle of the link assembly 300 is not greater than the preset angle; in the process of switching the link assembly 300 from the unfolded state to the folded state, the elastic body 420 drives the link assembly 300 to switch towards the folded state when the unfolded angle of the link assembly 300 is not greater than the preset angle.

According to the hinge provided by the embodiment of the utility model, the elastic component 400 is arranged on the movable end connecting rod 200, so that the space occupied by the connecting rod component 300 can be effectively avoided, the compactness of the hinge is ensured, the possibility that the size and the structure of the connecting rod component 300 are limited is reduced, and the overall structural strength and the bearing capacity of the hinge are improved.

It can be appreciated that the space occupied by the elastic body 420 is large, and the space for avoiding the elastic body 420 must be provided in the connecting rod assembly 300, so that the space occupied by the connecting rod assembly 300 can be reduced by arranging the elastic body 420 on the movable end connecting rod 200, and the connecting rod assembly 300 with a larger size structure can be adopted, so that the structural strength of the connecting rod assembly 300 is effectively enhanced, and the connecting rod assembly 300 can bear larger load and moment. The larger dimensional structure herein is understood to mean that the links of the link assembly are wider or thicker, and they are more resistant to deformation and damage such as fatigue, deformation and fracture, thereby improving the durability and service life of the hinge system.

It will be appreciated that the elastic body 420 is elastically deformed by the compression of the acting member 410, and the compressed elastic body 420 has an elastic restoring force, so that when the link assembly 300 is switched from the folded state to the unfolded state, the link assembly 300 tends to be switched from the unfolded state to the folded state. The elastic body 420 may be a spring, or may be a flexible material having elasticity such as rubber. Of course, the elastic body 420 may also include other elastic components, for example, the elastic body 420 is a piston, and when compressed by the acting element 410, the push rod of the piston compresses and presses the gas or the liquid in the piston, so that the elastic body 420 has elastic restoring force. In the embodiment of the present application, the elastic body 420 may include a member capable of generating an elastic restoring force when compressed.

It should be noted that the link assembly 300 has a folded state and an unfolded state, wherein the folded state of the link assembly 300 may be understood as a state in which the movable end link 200 approaches the fixed end link 100 by the rotation of the links in the link assembly 300. Similarly, the unfolded state of the link assembly 300 may be understood as a state in which the movable end link 200 is separated from the fixed end link 100 by the rotation of the links in the link assembly 300. The expansion angle of the link assembly 300 may be understood as an angle by which the movable end link 200 is rotated compared to the initial position of the movable end link 200 in the folded state.

It should be noted that, when the expansion angle of the link assembly 300 is not greater than the preset angle, the elastic body 420 drives the link assembly 300 to switch toward the folded state, that is, when the angle of rotation of the movable end link 200 is less than or equal to a certain critical value compared to the folded state, the outer edges of the acting member 410 and the elastic body 420 can be always kept in contact, and the acting member 410 compresses the elastic body 420, and the elastic restoring force of the elastic body 420 makes the link assembly 300 have a closing tendency, in other words, the link assembly 300 can switch from the expanded state to the folded state spontaneously without the action of the external force. Of course, in the case where the expansion angle of the link assembly 300 is not greater than the preset angle, the outer edges of the acting element 410 and the elastic body 420 may be separated, and the separation herein may be understood that the elastic body 420 and the acting element 410 are not in contact.

For example, when the preset angle is 30 °, the expansion angle of the link assembly 300 is between 0 ° and 30 °, the outer edges of the acting member 410 and the elastic body 420 may always be kept in contact, and the acting member 410 compresses the elastic body 420 to store elastic potential energy.

For another example, when the preset angle is 30 °, the outer edges of the acting element 410 and the elastic body 420 remain attached all the time corresponding to the case where the expansion angle of the link assembly 300 is between 10 ° and 30 °, and the outer edges of the acting element 410 and the elastic body 420 are disengaged corresponding to the case where the expansion angle of the link assembly 300 is between 0 ° and 10 °, and at this time the link assembly 300 may continue to be closed by inertia.

When the expansion angle of the link assembly 300 is greater than the preset angle, the acting member 410 does not compress the elastic body 420 or the restoring elasticity is small, the link assembly 300 does not spontaneously switch from the expanded state to the folded state, and the movable end link 200 can be easily rotated.

The preset angles may be 10 °, 15 °,20 °, 25 °, 30 °, 35 °, 40 °, 45 ° and the like, and are not particularly limited, and may be determined according to an application scenario of the hinge.

According to one embodiment of the present utility model, the link assembly 300 includes a first link 310, a second link 320, a third link 330, and a fourth link 340, a first end of the first link 310 being hinged with the fixed end link 100; the first end of the second link 320 is hinged with the fixed end link 100, and the first end of the second link 320 is spaced apart from the first end of the first link 310; the first end of the third link 330 is hinged to the first end of the movable end link 200, and the second end of the third link 330 is hinged to the middle of the second link 320; the first end of the fourth link 340 is hinged to the second end of the first link 310, the middle portion of the fourth link 340 is hinged to the second end of the second link 320, and the second end of the fourth link 340 is hinged to the second end of the movable end link 200; the fourth link 340 is provided with an acting member 410.

It will be appreciated that, the third link 330 and the fourth link 340 are both connected to the movable end link 200, the elastic body 420 is disposed on the movable end link 200, the acting element 410 is disposed on the fourth link 340, no matter the state is switched from the folded state to the unfolded state or vice versa, the elastic assembly 400 does not affect the movement of the first link 310 and the second link 320, in other words, the first link 310 and the second link 320 do not need to provide the avoiding space of the elastic assembly 400, and the elastic assembly 400 does not limit the size and structure of the first link 310 and the second link 320, therefore, the strength of the first link 310 and the second link 320 can be greater, and the durability and the service life of the hinge system can be further improved.

In one embodiment, the elastic body 420 is provided to the movable end link 200, and the acting element 410 is provided to the third link 330. Similarly, the elastic assembly 400 does not affect the movement of the first and second links 310 and 320, whether switching from the folded state to the unfolded state or vice versa. Accordingly, the elastic assembly 400 does not limit the size and structure of the first and second links 310 and 320.

In addition, the connection relationship of the third link 330 is simpler, the third link 330 is connected to the movable end link 200 and the second link 320, and the operation member 410 is provided to the third link 330 for easy assembly.

Referring to fig. 1, according to an embodiment of the present utility model, the elastic body 420 includes a fixed seat 421, an elastic member 422 and a movable seat 423, the fixed seat 421 is fixed to the movable end link 200, the elastic member 422 is installed between the fixed seat 421 and the movable seat 423, and the movable seat 423 is adapted to move along the length direction of the elastic body 420.

It can be understood that the elastic member 422 is installed between the fixed seat 421 and the movable seat 423, the first end of the elastic member 422 is connected to the fixed seat 421, the second end of the elastic member 422 is connected to the movable seat 423, and when the movable seat 423 pushes against the elastic member 422, the elastic member 422 is not subjected to radial force, and the structure of the elastic assembly 400 is stable and reliable.

According to an embodiment of the present utility model, referring to fig. 1, one of the fixed seat 421 and the movable seat 423 is provided with a guide post (not shown), the other is provided with a guide cylinder (not shown) inserted into the guide post, and the elastic member 422 is sleeved on the guide post and the guide cylinder. The elastic piece 422 is sleeved on the guide post and the guide cylinder, and limits the radial direction of the elastic piece 422, so that the radial deformation of the elastic piece 422 is prevented. Even if the elastic member 422 is subjected to radial force, the elastic member 422 is not damaged, and the life of the elastic assembly 400 is improved.

Referring to fig. 2, according to an embodiment of the present utility model, the movable seat 423 is provided with a pin 426, the movable end link 200 is provided with a chute 210, the length direction of the chute 210 is parallel to the length direction of the elastic body 420, and the pin 426 is slidably connected to the chute 210. It can be appreciated that the movable seat 423 and the movable end link 200 are limited by the cooperation of the sliding groove 210 and the pin 426. The movable seat 423 is provided with a pin 426, and the pin 426 is disposed on the roller 424, the movable end connecting rod 200 is provided with a chute 210, the pin 426 penetrates through the chute 210 to limit the movement direction of the movable seat 423, and the movable seat 423 can only move along the length direction of the elastic body 420.

According to one embodiment of the present utility model, the movable seat 423 includes a seat 425 and a roller 424, the seat 425 is connected to the elastic member 422, the roller 424 is rotatably connected to the seat 425, and the roller 424 is adapted to be rotatably engaged with the acting member 410. It can be appreciated that the movable seat 423 includes a roller 424, when the link assembly 300 is switched from the folded state to the unfolded state or from the unfolded state to the folded state, the acting block presses the roller 424, and the roller 424 generates a lateral displacement along the length direction of the elastic body 420, so that when the elastic member 422 references the acting member 410, the elastic member 422 is compressed by the linear motion relative to the acting member 410, and deformation of the elastic member 422 due to the influence of the radial force is avoided.

According to one embodiment of the present utility model, the acting member 410 includes a first arc-shaped slot 411 and a protrusion 412 recessed inward, the first arc-shaped slot 411 is connected to the protrusion 412, and the roller 424 cooperates with the first arc-shaped slot 411 and the protrusion 412 to switch the link assembly 300 between the folded state and the unfolded angle of the link assembly 300 equal to a preset angle; the roller 424 is positioned at the bottom of the first arc-shaped slot 411, and the link assembly 300 is in a folded state; the roller 424 is positioned on top of the protrusion 412, and the expansion angle of the link assembly 300 is equal to a preset angle.

It should be noted that, when the expansion angle of the link assembly 300 is not greater than the preset angle, the elastic body 420 drives the link assembly 300 to switch to the folded state, and the elastic restoring force of the elastic body 420 makes the link assembly 300 have a closing tendency, in other words, the link assembly 300 will switch from the expanded state to the folded state spontaneously without the action of external force. When the expansion angle of the link assembly 300 is greater than the preset angle, the compression amount by which the acting member 410 compresses the elastic body 420 becomes small, and the link assembly 300 is no longer spontaneously switched from the expanded state to the folded state. The preset angle is understood to be an angle at which the link assembly 300 is no longer spontaneously switched from the unfolded state to the folded state.

When the link assembly 300 is unfolded, until the roller 424 of the elastic body 420 is located at the top of the protrusion 412, the compression amount of the acting element 410 on the elastic body 420 is maximized, and the elastic potential energy stored in the elastic body 420 is maximized, in other words, when the roller 424 of the elastic body 420 is located at the top of the protrusion 412, the unfolding angle of the link assembly 300 is equal to the preset angle.

For example, when the preset angle is 30 °, the expansion angle of the link assembly 300 is between 0 ° and 30 °, the outer edges of the acting member 410 and the elastic body 420 may always be kept in contact, and the acting member 410 compresses the elastic body 420 to store elastic potential energy. When the expansion angle of the link assembly 300 is greater than 30 °, the compression amount of the acting element 410 compressing the elastic body 420 becomes small or the acting element 410 no longer compresses the elastic body 420, the elastic potential energy is reduced, the link assembly 300 no longer spontaneously switches from the expanded state to the folded state, and the user can easily continue to expand the link assembly 300.

According to one embodiment of the present utility model, the acting element 410 further includes a second arc-shaped groove 413 recessed inward, the second arc-shaped groove 413 is connected to the protrusion 412, and the first arc-shaped groove 411 and the second arc-shaped groove 413 are located at opposite sides of the protrusion 412, respectively; the roller 424 cooperates with the second arc groove 413 to switch the link assembly 300 between a preset angle and a limit opening angle of the link assembly 300; the roller 424 is positioned at the bottom of the second arc groove 413, and the link assembly 300 is at a limit opening angle.

It will be appreciated that the link assembly 300 may be switched between the preset angle and the limit opening angle by the cooperation of the roller 424 and the second arc groove 413, thereby controlling the deployment width of the link assembly 300. In addition, it is possible to prevent the user from carelessly colliding to cause the grip, and it is understood that the roller 424 needs to pass the top of the protrusion 412 when returning to the first arc slot 411 from the second arc slot 413, and when the roller 424 of the elastic body 420 is positioned at the top of the protrusion 412, the compression amount of the elastic body 420 by the acting member 410 is maximized, the elastic potential energy stored in the elastic body 420 is maximized, and the user wants to fold the link assembly 300 to break through the stored elastic potential energy, so that the user can be protected from sudden grip.

In addition, when the link assembly 300 is switched from the preset angle to the limit opening angle, the roller 424 moves from the top of the protrusion 412 to the second arc groove 413, and the elastic potential energy of the elastic body 420 is released, helping the link assembly 300 to continue to be unfolded, thereby achieving the effect of saving labor.

Referring to fig. 1 and 3, the third link 330 is provided with a relief groove 331, and at least a portion of the elastic body 420 is located in the relief groove 331 in the folded state. It is understood that the escape groove 331 prevents the jamming or biting phenomenon between the parts of the link assembly 300 in the folded state. And also protects the elastic body 420, and in addition, reduces the space occupied by the elastic body 420 for the link assembly 300 in the folded state.

Referring to fig. 1 and 3, according to one embodiment of the present utility model, a fixed end link 100 is formed with a mounting groove 110, and in a folded state, a link assembly 300 is at least partially located in the mounting groove 110. The mounting groove 110 may protect the link assembly 300 and may also reduce the space occupied by the link assembly 300 in the folded state.

The locker according to the present utility model comprises a locker body, a door, a link assembly 300, and an elastic assembly 400. The storage cabinet body is internally provided with an accommodating space, and one side of the storage cabinet body is provided with an opening communicated with the accommodating space; the door body is arranged at the opening and is suitable for opening or closing the opening; the connecting rod assembly 300 is connected with the locker body and the door body, and the connecting rod assembly 300 has a folded state and an unfolded state; the elastic assembly 400 comprises an acting piece 410 and an elastic main body 420, wherein the acting piece 410 is fixed on the connecting rod assembly 300, and the elastic main body 420 is arranged on the locker body; in the process of switching the link assembly 300 from the folded state to the unfolded state, the acting piece 410 compresses the elastic body 420 in the case that the unfolded angle of the link assembly 300 is not greater than the preset angle; in the process of switching the link assembly 300 from the unfolded state to the folded state, the elastic body 420 drives the link assembly 300 to switch towards the folded state when the unfolded angle of the link assembly 300 is not greater than the preset angle.

It is understood that the unfolding angle of the link assembly 300 can be understood as an angle by which the movable end link 200 is rotated compared to the initial position of the folded state of the movable end link 200, in other words, an unfolding angle of the door body is an unfolding angle of the link assembly 300. When the door opening angle is not greater than the preset angle of the link assembly 300, the elastic body 420 drives the link assembly 300 to allow the door to be closed. In this case, even if no external force acts on the door body, the door body can be automatically closed, and the use is convenient. When the door body opening angle is greater than the preset angle of the link assembly 300, the first acting member 410 does not compress the elastic body 420 or has smaller restoring elasticity, the link assembly 300 does not spontaneously switch from the unfolded state to the folded state, and the door body can easily rotate without a tendency of automatic closing.

It can be appreciated that the locker body may be provided with an independent fixed end connecting rod 100, or the fixed end connecting rod 100 and the locker body may be directly formed integrally. The door body can be provided with an independent movable end connecting rod 200, or the movable end connecting rod 200 and the door body can be directly integrated into one piece. Under the condition that the independent fixed end connecting rod 100 is arranged on the storage cabinet body, in order to facilitate the installation and the disassembly of the fixed end connecting rod 100, the fixed end connecting rod 100 is detachably connected with the storage cabinet body, and specifically, the fixed end connecting rod 100 is connected with the storage cabinet body through a screw or a buckle. Similarly, in the case that the door body is provided with the independent movable end connecting rod 200, the movable end connecting rod 200 is connected with the door body through a screw or a buckle.

In one embodiment, the locker further comprises a buffer assembly. When the opening angle of the door body is not greater than the preset angle, the locker can be automatically and slowly closed under the combined action of the elastic component 400 and the buffer component. Wherein, the elastic component 400 makes the door body have the trend of closure, and buffer assembly can slow down the closed speed of door body, prevents that the user from being pressed from both sides, effectively improves the security of locker.

It should be noted that the present utility model provides a storage cabinet, wherein the storage cabinet may be a refrigerator, a cabinet, a showcase, etc.

In addition, the hinge in the embodiment of the present utility model may be used to explain the structure of the storage cabinet, which is not described herein.

Finally, it should be noted that the above-mentioned embodiments are merely illustrative of the utility model, and not limiting. While the utility model has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present utility model without departing from the spirit and scope of the technical solutions of the present utility model, and it is intended to be covered by the scope of the claims of the present utility model.

Claims (10)

1. A hinge, comprising:

A fixed end connecting rod;

A movable end connecting rod;

A link assembly connecting the fixed end link and the movable end link, the link assembly having a collapsed state and an expanded state;

The elastic assembly comprises an acting piece and an elastic main body, the acting piece is arranged on the connecting rod assembly, and the elastic main body is arranged on the movable end connecting rod;

In the process of switching the connecting rod assembly from the folded state to the unfolded state, the acting piece compresses the elastic main body under the condition that the unfolding angle of the connecting rod assembly is not larger than a preset angle; in the process of switching the connecting rod assembly from the unfolding state to the folding state, under the condition that the unfolding angle of the connecting rod assembly is not larger than the preset angle, the elastic main body drives the connecting rod assembly to switch towards the folding state.

2. The hinge of claim 1, wherein the link assembly comprises:

The first end of the first connecting rod is hinged with the fixed end connecting rod;

The first end of the second connecting rod is hinged with the fixed end connecting rod, and the first end of the second connecting rod is arranged at intervals with the first end of the first connecting rod;

The first end of the third connecting rod is hinged with the first end of the movable end connecting rod, and the second end of the third connecting rod is hinged with the middle part of the second connecting rod;

The first end of the fourth connecting rod is hinged with the second end of the first connecting rod, the middle part of the fourth connecting rod is hinged with the second end of the second connecting rod, and the second end of the fourth connecting rod is hinged with the second end of the movable end connecting rod;

The fourth connecting rod is provided with the acting piece.

3. The hinge according to claim 2, wherein the elastic body includes a fixed seat fixed to the movable end link, an elastic member mounted between the fixed seat and the movable seat, and a movable seat adapted to move along a length direction of the elastic body.

4. A hinge according to claim 3, wherein the movable seat is provided with a pin, the movable end link is provided with a chute, the length direction of the chute is parallel to the length direction of the elastic body, and the pin is slidably connected to the chute.

5. A hinge according to claim 3, wherein the movable seat comprises a seat body and a roller, the seat body being connected to the elastic member, the roller being rotatably connected to the seat body, the roller being adapted to be in rotational engagement with the acting member.

6. The hinge according to claim 5, wherein said acting member includes an inwardly recessed first arcuate slot and a projection, said first arcuate slot being connected to said projection, said roller cooperating with said first arcuate slot and said projection to switch said link assembly between said collapsed condition and an expanded angle of said link assembly equal to a predetermined angle;

The roller is positioned at the bottom of the first arc-shaped groove, and the connecting rod assembly is in the folded state;

the roller is positioned at the top of the bulge, and the unfolding angle of the connecting rod assembly is equal to the preset angle.

7. The hinge of claim 6, wherein the acting member further comprises an inwardly recessed second arcuate slot, the second arcuate slot being connected to the projection, and the first arcuate slot and the second arcuate slot being located on opposite sides of the projection, respectively;

The roller is matched with the second arc-shaped groove, so that the connecting rod assembly is switched between the preset angle and the limit opening angle of the connecting rod assembly;

The roller is positioned at the bottom of the second arc-shaped groove, and the connecting rod assembly is positioned at the limit opening angle.

8. A hinge according to any one of claims 2 to 7, wherein the third link is provided with a relief groove, at least part of the resilient body being located in the relief groove in the folded condition.

9. A hinge according to any one of claims 2 to 7 wherein the fixed end link is formed with a mounting slot in which the link assembly is located at least partially in the folded condition.

10. A locker, comprising:

The storage cabinet body is internally provided with an accommodating space, and an opening communicated with the accommodating space is formed on one side of the storage cabinet body;

the door body is arranged at the opening and is suitable for opening or closing the opening;

The connecting rod assembly is connected with the locker body and the door body and has a folded state and an unfolded state;

The elastic assembly comprises an acting piece and an elastic main body, the acting piece is fixed on the connecting rod assembly, and the elastic main body is arranged on the storage cabinet body;

In the process of switching the connecting rod assembly from the folded state to the unfolded state, the acting piece compresses the elastic main body under the condition that the unfolding angle of the connecting rod assembly is not larger than a preset angle; in the process of switching the connecting rod assembly from the unfolding state to the folding state, under the condition that the unfolding angle of the connecting rod assembly is not larger than the preset angle, the elastic main body drives the connecting rod assembly to switch towards the folding state.