CN219910422U - 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 comprises a fixed end connecting rod, a movable end connecting rod, a connecting rod component and an elastic component. The connecting rod assembly is connected with the fixed end connecting rod and the movable end connecting rod and has a folding state and an unfolding state; the elastic component comprises a first acting piece and an elastic main body, the first acting piece is fixed on the fixed end connecting rod, the elastic main body is arranged on the connecting rod component, and the elastic main body is compressed by the first acting piece under the condition that the expansion angle of the connecting rod component 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. When the hinge is assembled, the elastic main body can be matched and installed according to the fixed first acting piece, so that the assembling difficulty is reduced, and the hinge is good in closing performance when being switched from an unfolding state to a folding state.

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 storage cabinet body after being opened or closed, the existing hinge generally adopts a six-link transmission mechanism, an elastic piece is arranged in one link of the hinge, an action piece is arranged in the other link, when the door body is opened, the action piece extrudes the elastic piece, and the elastic restoring force of the elastic piece enables the door body to have a closing trend. But install elastic component and action piece to current hinge in, the assembly process degree of difficulty is big and assembly efficiency is low, is difficult to guarantee the assembly strength of elastic component and action piece to still probably because the assembly error of elastic component and action piece leads to producing not hard up between elastic component and the connecting rod, perhaps, mismatch between action piece and the connecting rod influences the closure performance of locker, and user's use experience is poor. Thus, the existing hinges are to be further perfected.

Disclosure of Invention

The present utility model is directed to solving at least one of the technical problems existing in the related art. Therefore, the hinge provided by the utility model can effectively reduce the assembly difficulty compared with the hinge in the conventional technology.

The utility model further provides a storage cabinet.

According to an embodiment of the first aspect of the present utility model, a hinge includes a fixed end link, a movable end link, a link assembly, and an elastic assembly. The connecting rod assembly is positioned between the fixed end connecting rod and the movable end connecting rod and is connected with the fixed end connecting rod and the movable end connecting rod, and the connecting rod assembly is in a folding state and an unfolding state; the elastic component comprises a first acting piece and an elastic main body, the first acting piece is fixed on the fixed end connecting rod, the elastic main body is arranged on the connecting rod component, and the elastic main body is compressed by the first acting piece under the condition that the expansion angle of the connecting rod component is not larger than a preset angle in the process that the connecting rod component is switched from a folding state to an expansion state; 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.

According to the hinge disclosed by the embodiment of the utility model, when the hinge is assembled, the first acting piece is fixed to the fixed end connecting rod, and the elastic main body can be matched and installed according to the fixed first acting piece, so that the assembly difficulty is reduced, the assembly error between the elastic main body and the first acting piece is avoided, and the closing performance of the hinge switched from the unfolded state to the folded state is good.

According to one embodiment of the present utility model, the link assembly includes a first link, a second link, a third link, and a fourth link. 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 first link is provided with the elastic body.

According to one embodiment of the utility model, the elastic body comprises a fixed seat, an elastic piece and a movable seat, wherein the fixed seat is fixed on the first connecting rod, the movable seat is suitable for moving along the length direction of the first connecting rod, the elastic piece is arranged between the fixed seat and the movable seat, and the movable seat comprises a buffer wheel matched with the first acting piece.

According to one embodiment of the utility model, one of the fixed seat and the movable seat is provided with a guide post, the other is provided with a guide cylinder spliced with the guide post, and the elastic piece is sleeved on the guide post and the guide cylinder.

According to one embodiment of the present utility model, the first acting member is formed with an arcuate surface recessed inward, and the arcuate surface cooperates with the buffer wheel to switch the link assembly toward the folded state by the elastic body when the expansion angle of the link assembly is less than 30 °.

According to one embodiment of the utility model, the hinge further comprises a buffer assembly, the buffer assembly comprises a second acting piece and a buffer main body, the buffer main body is arranged on the first connecting rod, the second acting piece is arranged on the fourth connecting rod, and the second acting piece compresses the buffer main body under the condition that the unfolding angle of the connecting rod assembly is not larger than a preset angle in the process that the connecting rod assembly is switched from the unfolded state to the folded state.

According to one embodiment of the utility model, the damping body comprises a damper, a first end of which is fixed to the first link, and a second end of which cooperates with the second acting element.

According to one embodiment of the utility model, the buffer body further comprises a fixing sleeve, the fixing sleeve is mounted on the first connecting rod, the damper is mounted inside the fixing sleeve, and the first end of the damper is fixedly connected with the elastic body.

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 the embodiment of the utility model, the locker comprises a locker body, wherein an accommodating space is formed in the locker body, and an opening communicated with the accommodating space is formed on one side of the locker 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 storage cabinet body and the door body and is in a folded state and an unfolded state; the elastic assembly comprises a first acting piece and an elastic main body, the first acting piece is fixed on the storage cabinet body, the elastic main body is arranged on the connecting rod assembly, and the first acting piece compresses the elastic main body under the condition that the expansion angle of the connecting rod assembly is not larger than a preset angle in the process that the connecting rod assembly is switched from a folded state to an expanded state; 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.

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 cross-sectional view of a hinge provided by an embodiment of the present utility model;

fig. 2 is an exploded view 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;

300. a connecting rod assembly; 310. a first link; 320. a second link; 330. a third link; 340. a fourth link;

400. an elastic component; 410. a first acting member; 411. an arc surface;

420. an elastic body; 421. a fixing seat; 422. an elastic member; 423. a movable seat; 424. a buffer wheel; 425. a guide post; 426. a guide cylinder;

500. a buffer assembly; 510. a second acting member; 520. a buffer body; 521. a damper; 522. and fixing the sleeve.

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 and 2, the hinge according to the embodiment of the first aspect 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 is located between the fixed end link 100 and the movable end link 200, connects the fixed end link 100 and the movable end link 200, and has a folded state and an unfolded state; the elastic assembly 400 includes a first acting element 410 and an elastic body 420, the first acting element 410 is fixed on the fixed end connecting rod 100, the elastic body 420 is arranged on the connecting rod assembly 300, and the first acting element 410 compresses the elastic body 420 when the expansion angle of the connecting rod assembly 300 is not greater than a preset angle in the process of switching the connecting rod assembly 300 from the folded state to the expanded state; 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 of the embodiment of the present utility model, the first acting member 410 of the elastic assembly 400 is fixed to the fixed end link 100 during assembly, and the first acting member 410 does not rotate when the link assembly is switched between the folded state and the unfolded state, so that the first acting member 410 of the elastic assembly 400 has a stable structure and high assembly strength. Moreover, the elastic body 420 can be installed in a matching manner according to the fixed first acting element 410, so that the assembly difficulty is reduced, the assembly error between the elastic body 420 and the first acting element 410 is effectively avoided, and the closing performance of the hinge from the unfolded state to the folded state is good. The first acting element 410 is fixed on the fixed end connecting rod 100, the connecting rod assembly 300 is switched from the unfolded state to the folded state or from the folded state to the unfolded state, the two states are switched to change the state of the elastic main body 420, the first acting element 410 is fixed all the time, the first acting element 410 and the elastic main body 420 are prevented from being displaced after the hinge is used for a plurality of times, and the service life of the hinge can be effectively prolonged.

It is understood that the elastic body 420 may include an elastic member 422, where the elastic member 422 is elastically deformed when compressed by the first acting member 410, and the compressed first acting member 410 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 member 422 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 first 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 utility model, 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 first acting element 410 and the elastic body 420 can be kept in contact all the time, and the elastic body 420 is compressed by the first acting element 410, 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 unfolded angle of the link assembly 300 is not greater than the preset angle, the outer edges of the first acting member 410 and the elastic body 420 may be separated. For example, when the pre-examination angle is 30 °, the outer edges of the first acting element 410 and the elastic body 420 may always be kept in contact when the expansion angle of the link assembly 300 is between 0 ° and 30 °; or, when the pre-examination angle is 30 °, the outer edges of the first acting member 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 first acting member 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 °, 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 first 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.

Referring to fig. 1, the link assembly 300 includes a first link 310, a second link 320, a third link 330, and a fourth link 340 according to an embodiment of the present utility model. A first end of the first link 310 is 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 first link 310 is provided with an elastic body 420.

It will be appreciated that referring to fig. 1, the third link 330 and the fourth link 340 are both connected to the movable end link 200 and to the second link 320, in other words, the movement relationship of the second link 320, the third link 330 and the fourth link 340 is complex during the process of switching the link assembly 300 to the deployed state. Therefore, the elastic body 420 is provided to the first link 310 to be less likely to interfere with the movement of the hinge than the elastic body 420 is provided to the second link 320, the third link 330, or the fourth link 340. The elastic body 420 is disposed on the first link 310 to facilitate assembly of the hinge, and the first link 310 is connected to the fixed end link 100, so that the elastic body 420 is convenient to be attached to the first acting member 410 disposed on the fixed end link 100. In addition, the installation space of the first link 310 is large, so that more choices can be made on the elastic assembly 400 and the buffer assembly 500 (described later), and further, the hinge can be automatically and slowly closed under the condition that the unfolding angle of the hinge is not larger than the preset angle.

In one embodiment, to reduce the space occupied by the linkage assembly 300, the first link 310 is in a channel-like structure, the width of the first link 310 is greater than the sum of the widths of the second link 320 and the fourth link 340, and in the folded state the second link 320 and the fourth link 340 are at least partially positioned in the channel-like structure of the first link 310. The second link 320 has a slot-like structure, the width of the second link 320 is greater than the width of the third link 330, and the third link 330 is at least partially positioned in the slot-like structure of the second link 320 in the folded state.

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 first link 310, the movable seat 423 is adapted to move along a length direction of the first link 310, the elastic member 422 is installed between the fixed seat 421 and the movable seat 423, and the movable seat 423 includes a buffer wheel 424 engaged with the first acting member 410.

It can be appreciated that the elastic member 422 is adapted to be disposed along the length direction of the first link 310, the movable seat 423 is adapted to move along the length direction of the first link 310, and when the movable seat 423 pushes against the elastic member 422, the elastic member 422 is not subjected to a radial force, so that the structure of the elastic assembly 400 is stable and reliable. In one embodiment, the movable seat 423 includes a buffer wheel 424, when the first link 310 rotates at a fixed point, the first acting block presses the buffer wheel 424, and the buffer wheel 424 generates a lateral displacement along the length direction of the first link 310, so that when the elastic member 422 uses the first link 310 as a reference, the elastic member 422 is compressed by a linear motion relative to the first link 310, and deformation of the elastic member 422 due to the influence of a radial force is avoided.

In one embodiment, the limit is achieved between the movable seat 423 and the first link 310 through the cooperation of the elongated slot and the guide shaft. The movable seat 423 is provided with a guide shaft (not shown) and the guide shaft is disposed on the buffer wheel 424, and the first link 310 is provided with a long groove (not shown) along the length direction, and the guide shaft is disposed through the long groove, so that the movable seat 423 can only move along the length direction of the first link 310.

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 425, the other is provided with a guide cylinder 426 inserted into the guide post 425, and the elastic member 422 is sleeved on the guide post 425 and the guide cylinder 426. The elastic member 422 is sleeved on the guide post 425 and the guide cylinder 426, so that the radial direction of the elastic member 422 is limited, and the radial deformation of the elastic member 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.

According to an embodiment of the present utility model, referring to fig. 1, the first acting element 410 is formed with an arc surface 411 that is concave inward, so that the elastic body 420 drives the link assembly 300 to switch towards the folded state when the unfolding angle of the link assembly 300 is smaller than the preset angle. It will be appreciated that when the angle of deployment of the linkage assembly 300 is less than the predetermined angle, the hinge is formed to have a tendency to close, and the predetermined angle is 30 ° in accordance with the use habit of the user. Of course, the preset angle may be other, and is not particularly limited herein. The shape of the arcuate surface 411 determines the magnitude of the predetermined angle. The arc surface 411 is recessed inward, and when the expansion angle of the link assembly 300 is greater than a preset angle, the arc surface 411 does not compress the elastic body 420, and the movable end link 200 can be easily rotated.

Referring to fig. 1, according to an embodiment of the present utility model, the hinge further includes a buffer assembly 500, the buffer assembly 500 includes a second acting member 510 and a buffer body 520, the buffer body 520 is disposed on the first link 310, the second acting member 510 is disposed on the fourth link 340, and the second acting member 510 compresses the buffer body 520 when the expansion angle of the link assembly 300 is not greater than a predetermined angle in the process of switching the link assembly 300 from the expanded state to the folded state.

It will be appreciated that the hinge may be automatically and slowly closed by the combined action of the elastic assembly 400 and the buffer assembly 500 in the case where the deployment angle of the link assembly 300 is not greater than the preset angle. Wherein, the elastic component 400 makes the hinge have a closing trend, and the buffer component 500 can slow down the closing speed of the hinge, prevent the user from being clamped, and effectively improve the safety of the hinge closing. Similarly, the connection relationship of the first link 310 is simpler, and the installation space of the first link 310 is large, and the buffer body 520 is provided to the first link 310 to facilitate assembly.

Referring to fig. 1, according to an embodiment of the present utility model, the buffer body 520 includes a damper 521, a first end of the damper 521 is fixed to the first link 310, and a second end of the damper 521 is engaged with the second acting member 510. The damper 521 may be a hydraulic damper 521, without limitation. In the case where the damper 521 is a hydraulic damper 521, the second end of the damper 521 may be one of a piston rod and a piston body, the other of which is fixed to the first link 310, and the piston rod and the piston body may be relatively moved by compressing one of the piston rod and the piston body by the cooperation of the second acting member 510.

Referring to fig. 1, according to an embodiment of the present utility model, the buffer body 520 further includes a fixing sleeve 522, the fixing sleeve 522 is mounted on the first link 310, the damper 521 is mounted inside the fixing sleeve 522, and a first end of the damper 521 is fixedly connected to the elastic body 420. It will be appreciated that the fixing sleeve 522 fixedly mounts the damper 521 to the first link 310, and the first end of the damper 521 is fixedly connected to the elastic body 420, so that the damper 521 is more stably mounted, and the damper 521 is prevented from rotating during use.

Referring to fig. 1, 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 positioned 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.

According to the embodiment of the utility model, the locker comprises a locker body, wherein an accommodating space is formed in the locker body, and an opening communicated with the accommodating space is formed on one side of the locker body; 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 folding state and an unfolding state; the elastic assembly 400, the elastic assembly 400 includes a first acting element 410 and an elastic main body 420, the first acting element 410 is fixed on the cabinet body, the elastic main body 420 is arranged on the connecting rod assembly 300, and when the expansion angle of the connecting rod assembly 300 is not greater than a preset angle in the process of switching the connecting rod assembly 300 from the folded state to the expanded state, the first acting element 410 compresses the elastic main body 420; 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 locker of the present utility model, the first acting element 410 of the elastic assembly 400 is fixed to the locker body when assembling, the first acting element 410 does not rotate when the link assembly is switched between the folded state and the unfolded state, i.e., the first acting element 410 of the elastic assembly 400 does not rotate when the door is opened and closed, so that the first acting element 410 of the elastic assembly 400 has a stable structure and high assembling strength. Moreover, the elastic main body 420 can be matched and installed according to the fixed first acting piece 410, so that the assembly difficulty is reduced, the assembly error between the elastic main body 420 and the first acting piece 410 is effectively avoided, and the closing performance of the locker from the unfolded state to the folded state is good. The first acting part 410 is fixed on the locker body, the connecting rod assembly 300 is switched from the unfolding state to the folding state or is switched from the folding state to the unfolding state, the switching of the two states only changes the state of the elastic main body 420, the first acting part 410 is always fixed, the first acting part 410 positioned on the locker body and the elastic main body 420 positioned on the connecting rod assembly 300 can be prevented from being displaced after the locker is used for a plurality of times, and the service life of the locker can be effectively prolonged.

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 door body and the independent movable end connecting rod 200 can be integrally formed. 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 500. 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 500. Wherein, the elastic component 400 makes the door body have a trend of closing, and the buffer component 500 can slow down the speed of closing the door body, prevent the user from being clamped, effectively improve the security of the 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 a first acting piece and an elastic main body, the first acting piece is fixed on the fixed end connecting rod, and the elastic main body is arranged on the connecting rod assembly;

in the process of switching the connecting rod assembly from the folded state to the unfolded state, the first 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 first link is provided with the elastic body.

3. The hinge according to claim 2, wherein the elastic body includes a fixed seat fixed to the first link, an elastic member mounted between the fixed seat and the movable seat, and a movable seat including a buffer wheel engaged with the first acting member, and adapted to move along a length direction of the first link.

4. A hinge according to claim 3, wherein one of the fixed seat and the movable seat is provided with a guide post, the other is provided with a guide cylinder inserted into the guide post, and the elastic member is sleeved on the guide post and the guide cylinder.

5. A hinge according to claim 3, wherein the first acting member is formed with an arcuate surface recessed inwardly, the arcuate surface and the buffer wheel cooperating such that the resilient body urges the link assembly to switch towards the folded condition with an angle of deployment of the link assembly less than 30 °.

6. The hinge of claim 2, further comprising a cushioning assembly, the cushioning assembly comprising a second acting member and a cushioning body, the cushioning body being disposed on the first link, the second acting member being disposed on the fourth link, the link assembly being configured to compress the cushioning body when the link assembly is switched from the extended state to the collapsed state, the link assembly having an angle of extension that is not greater than the predetermined angle.

7. The hinge of claim 6, wherein the damping body includes a damper, a first end of the damper being secured to the first link, a second end of the damper being mated with the second acting member.

8. The hinge of claim 7, wherein the buffering body further comprises a fixing sleeve mounted to the first link, the damper is mounted inside the fixing sleeve, and a first end of the damper is fixedly connected to the elastic body.

9. A hinge according to any one of claims 1 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 a first acting piece and an elastic main body, the first acting piece is fixed on the storage cabinet body, and the elastic main body is arranged on the connecting rod assembly;

in the process of switching the connecting rod assembly from the folded state to the unfolded state, the first 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.