CN113982400B

CN113982400B - Limiting device, hinge assembly and storage cabinet

Info

Publication number: CN113982400B
Application number: CN202111093804.7A
Authority: CN
Inventors: 梁鑫; 周少锋; 朱波; 朱建威
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-11-22
Anticipated expiration: 2041-09-17
Also published as: CN113982400A

Abstract

The invention relates to the field of hinges, and provides a limiting device, a hinge assembly and a storage cabinet. The hinge assembly includes: a mount having a stop surface; the limiting piece is provided with a limiting part, and the limiting piece and the hinge base can rotate relatively so as to switch between a limiting state and a free state; in the limit state, the limiting part is abutted against the stop surface; the locking assembly comprises a driving piece, and is suitable for driving the limiting piece to move through the driving piece so as to adjust the relative position between the limiting part and the stopping surface and lock the limiting piece and the driving piece. According to the limiting device, the limiting opening and closing angle is adjustable, and the limiting device is applied to the storage cabinet as an example, the maximum opening angle of the storage cabinet can be adjusted, so that the limiting device is suitable for different storage cabinet placing positions, and the problem of door opening collision is solved; in addition, the driving piece can automatically control the adjustment of the maximum door opening angle of the storage cabinet and realize the fine adjustment of multiple gears, and the structure is simple, the reliability is high, and the user operability is high.

Description

Limiting device, hinge assembly and storage cabinet

Technical Field

The invention relates to the technical field of hinges, in particular to a limiting device, a hinge assembly and a storage cabinet.

Background

With the improvement of living standard, basically all families have a refrigerator, but at present, due to the improvement of home decoration and house unit price, the refrigerator is not roughly placed, but changes along with the changes of decoration and house types. When the one side of the refrigerator placing position is the wall body, if the opening angle of the refrigerator is larger than a certain angle, the door body collides with the wall body, and therefore the door body crushing risk is greatly increased. Part of users can prevent the refrigerator door body from colliding with the wall body by adding anti-collision stickers, anti-collision stickers and the like,

the related art discloses a hinge structure, wherein the upper end of a refrigerator door body is arranged on one side of a refrigerator shell through an angle adjusting hinge, the lower end of the refrigerator door body is arranged on one side of the refrigerator shell through a driven hinge, a tension spring is arranged between the refrigerator door body and the refrigerator shell, and the tension spring is detachably arranged between the refrigerator door body and the refrigerator shell; the angle adjustment hinge includes a circular pin.

The hinge structure uses the side double-hinge structure to realize the door opening of the refrigerator at any angle, however, in the practical application process, the situation that a user applies too much force or too much force can occur, the refrigerator door body still directly collides the wall at the moment, in addition, the related technology shown in the figure belongs to a flexible limiting structure, the stability is poor, and the side double-hinge and the spring matching are difficult to be applied to the side-by-side and multi-door refrigerators popular in the current market, and the application range is small.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the limiting device is adjustable in limiting opening and closing angle, and by taking the limiting device applied to a storage cabinet as an example, the maximum opening angle of the storage cabinet can be adjusted, so that the limiting device is suitable for different storage cabinet placing positions, and the problem of door opening collision is solved; in addition, the driving piece can automatically control the adjustment of the maximum door opening angle of the storage cabinet and realize the fine adjustment of multiple gears, and the structure is simple, the reliability is high, and the user operability is high.

The invention also provides a hinge assembly.

The invention also provides a storage cabinet.

According to the stop device of the embodiment of the first aspect of the invention, including:

a mount having a stop surface;

the limiting piece is provided with a limiting part, and the limiting piece and the mounting base can rotate relatively so as to switch between a limiting state and a free state; in the limit state, the limiting part is abutted against the stop surface;

the locking assembly comprises a driving piece, and is suitable for driving the limiting piece to move through the driving piece so as to adjust the relative position between the limiting part and the stopping surface and lock the limiting piece and the driving piece.

According to the limiting device provided by the embodiment of the invention, the driving part drives the limiting part to move so as to drive the limiting part to move, so that the relative position between the limiting part and the stop surface is changed, and the locking assembly locks the driving part and the limiting part at the current relative position, so that the limit opening and closing angle of the limiting device is changed, and the limit opening and closing angle of the limiting device can be adjusted. Taking the limiting device applied to the storage cabinet as an example, the limiting device can realize the adjustment of the maximum door opening angle of the storage cabinet, so that the limiting device is suitable for different storage cabinet placing positions, the phenomenon that a door body is easy to collide with a wall body due to the fact that the maximum door opening angle of the storage cabinet is too large is avoided, and the problem of door opening collision is solved; in addition, because the existence of driving piece, can the biggest regulation of opening the door angle of automatic control locker and realize the regulation that becomes more meticulous of many gears, avoided the complex operation that manual regulation leads to among the correlation technique, the lower problem of meticulous degree to simple structure, strong reliability, user maneuverability are strong.

According to one embodiment of the present invention, the driving member is a stepping motor, and an output shaft of the stepping motor is in transmission connection with the limiting member.

According to one embodiment of the invention, the stop surfaces comprise a first stop surface and a second stop surface, the limit states comprise a first limit state and a second limit state;

in the first limit state, the limiting part is abutted against the first stop surface;

in the second limit state, the limit part is stopped against the second stop surface.

According to an embodiment of the present invention, the mounting seat is provided with a first mating surface, and the position-limiting portion is provided with a second mating surface, and in the free state, the second mating surface is adapted to be in sliding fit with the first mating surface.

According to an embodiment of the present invention, the first mating surface and the second mating surface are arc surfaces with corresponding shapes.

According to one embodiment of the present invention, the mount is provided with a slide groove, an end of the slide groove forms the stopper surface, and the stopper portion is slidably fitted in the slide groove.

According to an embodiment of the present invention, the locking assembly further includes an adjusting bolt, a first bolt hole disposed in the driving member, and a second bolt hole disposed in the limiting member, wherein the adjusting bolt is detachably engaged with the first bolt hole and the second bolt hole.

According to an embodiment of the present invention, the locking assembly includes a plurality of locking grooves and a locking tongue, the locking tongue is telescopically disposed on the position-limiting member, the plurality of locking grooves are disposed on the driving member at intervals along a moving direction of the position-limiting member, and the locking tongue is adapted to fit in the locking grooves to lock the position-limiting member.

According to one embodiment of the invention, an elastic element is further arranged between the lock tongue and the limiting element, and the elastic element is suitable for pushing the lock tongue to extend into the locking groove.

According to the hinge assembly of the embodiment of the second aspect of the invention, the hinge assembly comprises the limiting device of the first aspect of the invention, wherein the mounting seat is a hinge seat.

A storage cabinet according to an embodiment of a third aspect of the present invention includes:

a hinge assembly according to an embodiment of the second aspect of the present invention;

the hinge seat is fixed on one of the cabinet body and the door body, and the driving piece is fixed on the other one of the cabinet body and the door body.

According to the storage cabinet disclosed by the embodiment of the invention, the maximum door opening angle of the storage cabinet can be adjusted, so that a user can modify the maximum door opening angle of the storage cabinet to adapt to the specific placing position of the storage cabinet, the collision between a door body and a wall body is prevented, and the service life of the storage cabinet is prolonged; and can realize the automatically regulated of the biggest angle of opening the door through the driving piece, realize the regulation that becomes more meticulous of many gears, avoid the loaded down with trivial details of operation, the lower problem of meticulous degree that manual regulation leads to among the correlation technique to simple structure, good reliability, user maneuverability are strong.

According to one embodiment of the invention, the door body is provided with an end cover, one end of the end cover, which is close to the cabinet body, is provided with a fixing hole, and the driving piece is fixed in the fixing hole.

According to one embodiment of the invention, the cabinet further comprises:

the door locking piece is suitable for locking the door body and the cabinet body under the condition that the door body is closed, the door locking piece is arranged between the hinge seat and the limiting pieces, and the door locking piece is fixed on the door body.

According to one embodiment of the invention, the cabinet is a refrigerator, a wine cabinet or a retail cabinet.

Additional aspects and advantages of the invention 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 invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an exploded schematic view of a hinge assembly provided by an embodiment of the present invention;

FIG. 2 is a schematic view of a partial structure of a storage cabinet according to an embodiment of the present invention.

Reference numerals:

1. a hinge mount; 11. a stop surface; 12. a pivotal shaft; 13. a first mating surface; 2. a limiting member; 21. a limiting part; 211. a second mating surface; 3. a stepping motor; 31. a drive shaft; 4. a cabinet body; 5. a door body; 51. an end cap; 511. a fixing hole; 6. and a door locking piece.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. 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 the description of the embodiments of the present invention, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

As shown in fig. 1 and 2, the limiting device according to the embodiment of the first aspect of the present invention includes a mounting base, a limiting member 2 and a locking assembly.

The mounting base has a stop surface 11, the limiting member 2 is provided with a limiting portion 21, and the limiting member 2 and the mounting base can rotate relatively to switch between a limiting state and a free state. In the limit state, the limit portion 21 abuts against the stop surface 11.

The locking assembly comprises a driving piece, and the locking assembly is suitable for driving the limiting piece 2 to move through the driving piece so as to adjust the relative position between the limiting part 21 and the stop surface 11 and lock the limiting piece 2 and the driving piece.

According to the limiting device provided by the embodiment of the invention, the driving part drives the limiting part 2 to move so as to drive the limiting part 21 to move, so that the relative position between the limiting part 21 and the stop surface 11 changes, and the locking assembly locks the driving part and the limiting part 2 at the current relative position, so that the limit opening and closing angle of the limiting device changes, and the limit opening and closing angle of the limiting device can be adjusted. Taking the limiting device applied to the storage cabinet as an example, the limiting device can realize the adjustment of the maximum door opening angle of the storage cabinet, so that the limiting device is suitable for different storage cabinet placing positions, the door body 5 is prevented from easily colliding with a wall body due to the fact that the maximum door opening angle of the storage cabinet is too large, and the problem of door opening collision is solved; in addition, because the existence of driving piece, can the biggest regulation of opening the door angle of automatic control locker and realize the regulation that becomes more meticulous of many gears, avoided the complex operation that manual regulation leads to among the correlation technique, the lower problem of meticulous degree to simple structure, strong reliability, user maneuverability are strong.

The limiting device can be applied to various occasions needing to realize the limiting function, for example, the limiting device can be applied to a hinge assembly but not limited, and the application occasions of the limiting device are not particularly limited.

The hinge assembly of the second aspect of the present invention is exemplified by the limiting device, and the limiting device can be applied to other structures needing to realize the limiting function, such as a sliding assembly, a telescopic assembly, etc., without loss of generality.

It should be noted that the following specific definitions and explanations of the position-limiting device and its internal structure (including the position-limiting member 2 and the mounting seat) are not influenced by the specific application (e.g. to the hinge assembly), i.e. the embodiments listed below for the position-limiting device and its internal structure may exist independently of the hinge assembly, and the following descriptions related to the position-limiting device and its internal structure may be regarded as descriptions of the position-limiting device of the first aspect of the present invention.

Before describing the hinge assembly according to the first aspect of the present invention, first briefly described is an application scenario of the hinge assembly according to the present invention, which may be applied to a locker, for example, to opening and closing a door of the locker; the hinge assembly can also be applied to doors and windows, such as the change of the opening and closing angle of the doors and windows; the hinge assembly may also be applied to other variations in the opening and closing angle between two rotatable members, such as between two relatively rotatable arms. The application scenario of the hinge assembly is not limited in the present invention, and the hinge assembly can be applied between any two relatively rotatable components.

As shown in fig. 1 and 2, according to a hinge assembly of an embodiment of the second aspect of the present invention, the mounting seat is a hinge seat 1.

The hinge base 1 is provided with a stop surface 11, the limiting piece 2 is provided with a limiting part 21, and the limiting piece 2 and the hinge base 1 can rotate relatively to switch between a limiting state and a free state. In the limit state, the limit portion 21 abuts against the stop surface 11.

According to the hinge assembly provided by the embodiment of the invention, the driving piece drives the limiting piece 2 to move so as to drive the limiting part 21 to move, so that the relative position between the limiting part 21 and the stop surface 11 is changed, and the locking assembly locks the driving piece and the limiting piece 2 at the current relative position, so that the limit opening and closing angle of the hinge assembly is changed, namely the limit opening and closing angle of the hinge assembly can be adjusted. Taking the hinge assembly applied to the storage cabinet as an example, the hinge assembly can realize the adjustment of the maximum door opening angle of the storage cabinet, so that the hinge assembly is suitable for different storage cabinet placing positions, the door body 5 is prevented from easily colliding with a wall body due to the fact that the maximum door opening angle of the storage cabinet is too large, and the problem of door opening collision is solved; in addition, because the existence of driving piece, can the biggest regulation of opening the door angle of automatic control locker and realize the regulation that becomes more meticulous of many gears, avoided the complex operation that manual regulation leads to among the correlation technique, the lower problem of meticulous degree to simple structure, strong reliability, user maneuverability are strong.

According to the embodiment of the invention, the hinge assembly can realize the switching between the limit part 2 in the limit state and the free state through the matching between the stop surface 11 and the limit part 21, and the matching between the stop surface 11 and the limit part 21 is determined through the relative rotation between the limit part 2 and the hinge base 1. If the limiting piece 2 rotates along a certain direction relative to the hinge base 1, when the limiting piece 2 rotates to the limit state, the limiting piece 2 cannot rotate continuously along the same direction because the limiting part 21 is stopped by the stopping surface 11, and at the moment, the hinge assembly reaches the limit opening and closing angle; when the limiting member 2 rotates to a free state, since the limiting portion 21 is not stopped by the stopping surface 11, the limiting member 2 can continue to rotate in the same direction and in the opposite direction, and at this time, the hinge assembly does not reach the limit opening and closing angle.

The limiting part 21 can be a limiting protrusion, a limiting rod, etc., and the invention is not limited in particular, as long as the limiting part 21 can play a limiting role.

In the hinge assembly of the present invention, the driving element can drive the limiting element 2 to move so as to drive the limiting portion 21 to move, so that the relative position between the limiting portion 21 and the stopping surface 11 can be adjusted, wherein the driving element can drive the limiting element 2 to perform a linear sliding motion, and can also drive the limiting element 2 to perform a rotational motion, which is not limited herein. It can be understood that, when the driving element drives the limiting element 2 to slide linearly, the above-mentioned "relative position between the limiting portion 21 and the stop surface 11" refers to a distance between the limiting portion 21 and the stop surface 11; when the driving member drives the limiting member 2 to rotate, the above-mentioned "relative position between the limiting portion 21 and the stopping surface 11" refers to an included angle between the limiting portion 21 and the stopping surface 11.

Taking the example that the driving element drives the limiting element 2 to rotate and the hinge assembly is applied to the storage cabinet as an example, when the storage cabinet is in a door closing state, a user can drive the limiting element 2 to rotate through the driving element so as to change an included angle between the limiting portion 21 and the stop surface 11, and as the included angle between the limiting portion 21 and the stop surface 11 changes, the maximum door opening angle of the storage cabinet also changes accordingly. Specifically, when the included angle between the driving part driving limiting part 21 and the stopping surface 11 becomes smaller, the maximum door opening angle of the storage cabinet also becomes smaller; when the included angle between the driving part driving limiting part 21 and the stopping surface 11 is increased, the maximum door opening angle of the storage cabinet is increased.

For the situation that the driving element drives the limiting element 2 to slide linearly, the situation is similar to the situation that the driving element drives the limiting element 2 to rotate, and the description of the invention is omitted here.

The operation of the locking assembly in the hinge assembly of the present invention is described as follows: the locking assembly comprises a driving piece, when the driving piece drives the limiting piece 2 to rotate to a certain position, the locking assembly locks the limiting piece 2 to the driving piece at the current position, namely, the limiting piece 2 and the driving piece cannot rotate relatively at the moment.

As shown in fig. 1, taking the hinge assembly as an example of being installed on the storage cabinet, the hinge assembly is installed on the cabinet body 4 of the storage cabinet, the driving member is installed on the door body 5 of the storage cabinet, after the driving member adjusts the relative position between the limiting portion 21 and the stop surface 11, the locking assembly locks the limiting member 2 to the driving member, and at this time, the door body 5 is opened as follows: the door body 5 is opened along the direction of opening the door, and door body 5 drives the driving piece and rotates, and the driving piece drives the locking and rotates in locating part 2 of driving piece, and when locating part 2 rotated to spacing portion 21 backstop in the position of backstop face 11, locating part 2 was in extreme condition, because locating part 2 stopped in the backstop face 11 of hinge seat 1 for driving piece locking and locating part 2 this moment, consequently door body 5 can not continue to rotate along the direction of opening, the locker reached the biggest angle of opening the door this moment.

It should be noted that the locking assembly can realize the locking of the limiting part 2 and the driving part through a mechanical structure, and can also realize the locking of the limiting part 2 and the driving part through the driving part with a power-off self-locking function. The invention is not limited in any way as long as the locking assembly can lock the limiting member 2 and the driving member.

As shown in fig. 1, according to an embodiment of the present invention, the driving member is a stepping motor 3, and a driving shaft 31 of the stepping motor 3 is drivingly connected to the limiting member 2. Like this, because step motor 3 has the function of outage auto-lock, consequently when the limit angle of opening and shutting of needs regulation hinge subassembly, can supply power so that step motor 3 drive locating part 2 removes to step motor 3, and the power of disconnection step motor 3 is with locking locating part 2 afterwards, and simple structure is stable, and the reliability is higher.

In an embodiment of the present invention, the position-limiting element 2 and the driving element may be integrally formed, that is, the position-limiting element 2 is formed on the driving shaft 31 of the stepping motor 3, and the driving shaft 31 is provided with the position-limiting portion 21; the limiting member 2 and the driving member may also be a split structure, and the invention is not limited herein.

According to one embodiment of the invention, the stop surface 11 comprises a first stop surface (not shown) and a second stop surface (not shown), and the limit states comprise a first limit state and a second limit state. In the first limit state, the limiting part 21 is stopped against the first stopping surface; in the second limit state, the limit portion 21 is stopped against the second stop surface.

In this way, in the hinge assembly of the present invention, by adjusting the relative positions between the first stop surface and the stopper portion 21 and between the second stop surface and the stopper portion 21, respectively, the maximum opening angle and the minimum closing angle of the hinge assembly can be adjusted, respectively.

In an embodiment of the invention, when the limiting part 21 stops at the first stopping surface, the hinge assembly is at the maximum opening angle, taking the hinge assembly as an example of being applied to the storage cabinet, the maximum opening angle of the storage cabinet can be adjusted by adjusting the relative position between the limiting part 21 and the first stopping surface, so as to prevent the door body 5 of the storage cabinet from colliding with the wall body; when the limiting part 21 stops at the second stopping surface, the hinge assembly is at the minimum closing angle, and taking the hinge assembly applied to two mechanical arms capable of rotating relatively as an example, the minimum furling angle between the two mechanical arms can be adjusted by adjusting the relative position between the limiting part 21 and the second stopping surface, and the minimum furling angle can be adjusted to be larger than 0 degree at the moment, so that a supporting effect on a heavy object placed on the mechanical arm can be realized, the two mechanical arms can be prevented from being directly collided and damaged in the furling process, and the use safety of the device is ensured.

The above-described embodiment is only one of the practicable modes of the hinge assembly according to the present invention, the hinge assembly may be applied to other application scenarios, and a user may freely select and adjust the maximum opening angle and/or the minimum closing angle of the hinge assembly according to different application scenarios of the hinge assembly.

As shown in fig. 1, according to an embodiment of the present invention, the hinge base 1 is provided with a first engaging surface 13, the position-limiting portion 21 has a second engaging surface 211, and in a free state, the second engaging surface 211 is adapted to slidably engage with the first engaging surface 13. Thus, the first matching surface 13 can guide the movement of the limiting part 21, and the relative rotation between the limiting part 21 and the hinge base 1 can be more stable and reliable through the sliding fit between the first matching surface 13 and the second matching surface 211.

As shown in fig. 1, the first engagement surface 13 and the second engagement surface 211 are arc surfaces with corresponding shapes. In this way, by designing the first engagement surface 13 and the second engagement surface 211 as arc surfaces adapted to the rotational movement mode, the stability of the stopper portion 21 when rotating with respect to the hinge base 1 can be further improved.

Of course, the first mating surface 13 and the second mating surface 211 may also be plane surfaces or curved surfaces with other shapes, and the invention is not limited thereto.

In one embodiment of the invention, if the hinge base 1 has both a first stop surface and a second stop surface, the first mating surface 13 is formed between the first stop surface and the second stop surface.

According to another embodiment of the present invention, the hinge base 1 is provided with a sliding groove (not shown in the drawings) whose end forms the stopper surface 11, and the stopper portion 21 is slidably fitted in the sliding groove. Thus, the sliding groove can guide the rotation of the limiting part 21, and the structure is more stable.

Further, if the hinge base 1 has both the first and second stop surfaces, both end portions of the sliding groove form the first and second stop surfaces, respectively.

As shown in fig. 1, according to an embodiment of the present invention, one of the hinge base 1 and the limiting member 2 is provided with a pivot shaft 12, and the other one of the hinge base 1 and the limiting member 2 is rotatably sleeved on the pivot shaft 12.

Therefore, the hinge seat 1 and the limiting piece 2 are coaxially arranged, so that the structure of the hinge assembly can be simplified, the assembly of the hinge assembly is more convenient, and the operation of a user can be more convenient.

According to an embodiment of the present invention, the locking assembly further comprises an adjusting bolt (not shown), a first bolt hole (not shown) provided in the body of the driving member, and a second bolt hole (not shown) provided in the limiting member 2, wherein the adjusting bolt is detachably engaged with the first bolt hole and the second bolt hole. Therefore, the limiting piece 2 and the driving piece can be locked and unlocked through the adjusting bolt, when a user needs to adjust the limit opening and closing angle, the user can manually detach the adjusting bolt from the first bolt hole and the second bolt hole to unlock the limiting piece 2, and then the limit opening and closing angle is automatically adjusted through the driving piece; after the user's regulation operation is accomplished, the user can install adjusting bolt in first bolt hole and second bolt hole with locking locating part 2.

In an embodiment of the present invention, taking the hinge assembly mounted on the storage cabinet as an example, the driving member is fixed to the door 5 of the storage cabinet, and the first bolt hole may be disposed not only on the body of the driving member but also on the door 5 of the storage cabinet.

According to an embodiment of the present invention, the locking assembly includes a plurality of locking grooves (not shown) and a locking tongue (not shown), the locking tongue is telescopically disposed on the position-limiting member 2, the plurality of locking grooves are disposed on the driving member at intervals along the moving direction of the position-limiting member 2, and the locking tongue is adapted to be engaged in the locking grooves to lock the position-limiting member 2.

When the power supply removes with control driving piece drive locating part 2 to the driving piece, the spring bolt is followed locating part 2 and is removed, at the in-process that the spring bolt removed, the inner wall in last locking groove plays the oppression effect so that the spring bolt withdrawal to the spring bolt, when the spring bolt removes the position that corresponds with next locking groove, the spring bolt is automatic again and stretches into this locking inslot, when cutting off the power supply to the driving piece, because the driving piece no longer applys drive power to locating part 2 (locking groove does not oppress the spring bolt promptly), locating part 2 locking this moment is in the driving piece.

Further, an elastic element (not shown in the figure) is arranged between the lock tongue and the limiting element 2, and the elastic element is suitable for pushing the lock tongue to extend into the locking groove. Like this, the spring bolt can automatic re-setting to the locking inslot, and the structure is more stable.

It should be noted that in the two embodiments described above, namely the two embodiments in which the locking assembly includes the adjusting bolt, the first bolt hole and the second bolt hole, and the locking assembly includes the locking tongue and the locking groove, the driving member can be a common motor, and the expensive stepping motor 3 is not required, thereby saving the cost.

A storage cabinet according to a third aspect of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 and 2, a locker according to an embodiment of the present invention includes: the hinge assembly, the cabinet 4 and the door 5 of the first embodiment of the present invention have the hinge base 1 fixed to one of the cabinet 4 and the door 5 and the driving member fixed to the other of the cabinet 4 and the door 5.

According to the storage cabinet disclosed by the embodiment of the invention, the maximum door opening angle of the storage cabinet can be adjusted, so that a user can modify the maximum door opening angle of the storage cabinet to adapt to the specific placing position of the storage cabinet, the collision between the door body 5 and a wall body is prevented, and the service life of the storage cabinet is prolonged; and can realize the automatically regulated of the biggest angle of opening the door through the driving piece, realize the regulation that becomes more meticulous of many gears, avoid the loaded down with trivial details of operation, the lower problem of meticulous degree that manual regulation leads to among the correlation technique to simple structure, good reliability, user maneuverability are strong.

As shown in fig. 2, the hinge assembly may be mounted on an upper end cover or a lower end cover of the door body 5 which is rotatable as shown in the figure, and may be used alone or in combination. In this way, the installation of the hinge assembly is more flexible, and manufacturers can select the installation position of the hinge assembly according to specific requirements.

As shown in fig. 1 and 2, according to an embodiment of the present invention, the door body 5 is provided with an end cap 51, one end of the end cap 51 close to the cabinet 4 is provided with a fixing hole 511, and the driving member is fixed in the fixing hole 511. Thus, the assembly between the driving member and the door body 5 is facilitated, and the structure is more stable.

As shown in FIG. 1, according to one embodiment of the present invention, the cabinet further includes a door locking member 6. The door locking piece 6 is suitable for locking the door body 5 and the cabinet body 4 under the condition that the door body 5 is closed, the door locking piece 6 is arranged between the hinge seat 1 and the limiting piece 2, and the door locking piece 6 is fixed on the door body 5. Like this, can realize the locking of a body 5 through lock door spare 6, avoid appearing the insecure problem of a body 5 closure.

In some embodiments of the present invention, the door locking member 6 may be a magnetic member, and the magnetic member makes the door 5 adhere to the cabinet 4 by magnetic force; the door locking piece 6 can also be a vacuum sucker, and the vacuum sucker realizes the adsorption between the door body 5 and the cabinet body 4 through air pressure difference.

According to one embodiment of the invention, the cabinet is provided with a control panel (not shown) by which the user can control the driving member to achieve adjustment of the maximum door opening angle. Specifically, the control panel is provided with an adjusting knob or a plurality of adjusting buttons, and a user can adjust the maximum door opening angle by rotating the adjusting knob or pressing different adjusting buttons. Therefore, the use and the operation of the user are convenient and more humanized.

According to one embodiment of the invention, the storage cabinet may be, but is not limited to, a refrigerator, a wine chest, or a retail cabinet.

A specific embodiment of a storage cabinet according to the present invention is described below.

As shown in fig. 1 and 2, the storage cabinet is a refrigerator, the hinge assembly comprises a hinge base 1, a limiting member 2 and a stepping motor 3, the hinge base 1 is installed on a cabinet body 4 of the refrigerator, the stepping motor 3 is installed on a door body 5 of the refrigerator, an end cover 51 is arranged at the upper end of the door body 5, a fixing hole 511 is arranged on the end cover 51, and the stepping motor 3 is fixed in the fixing hole 511.

The hinge base 1, the door locking piece 66, the limiting piece 2 and the stepping motor 3 are sequentially installed, the hinge base 1 is provided with a pivot shaft 12, the door locking piece 66 and the limiting piece 2 are sleeved on the pivot shaft 12, and the limiting piece 2 is in dynamic coupling with a driving shaft 31 of the stepping motor 3. The limiting part 21 protrudes upwards and is in sliding fit with the first matching surface 13 of the hinge base 1, and the first matching surface 13 is connected with the stop surface 11.

In order to realize the adjustability of the maximum door opening angle, a user can control the rotation angle of the stepping motor 3 through a program, and the driving shaft 31 of the stepping motor 3 drives the limiting part 2 to rotate, so that the relative angle between the limiting part 21 and the stop surface 11 can be changed, and the change of the maximum door opening angle is controlled. When the stepping motor 3 moves clockwise to drive the limiting part 21 to move, the included angle between the stop surface 11 and the limiting part 21 can be increased (for example, the maximum included angle can be 135 degrees), so that the maximum opening angle is increased; when the stepping motor 3 moves in the counterclockwise direction, the angle between the stopper surface 11 and the stopper portion 21 can be reduced (for example, up to 90 ° at the minimum), so that the door opening angle becomes small. Wherein the maximum door opening angle of the refrigerator can be adjusted between 90 DEG and 135 deg.

According to the storage cabinet disclosed by the embodiment of the invention, the maximum door opening angle can be finely adjusted in multiple steps from 90 degrees to 135 degrees, and certainly, the maximum door opening angle can also be other angles, and the invention is not particularly limited herein; the setting can be modified through a refrigerator control panel to realize the adjustment of the maximum door opening angle; in addition, simple structure, strong reliability and strong customer operability.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims

1. A stop device, comprising:

a mount having a stop surface;

the limiting piece is provided with a limiting part, and the limiting piece and the mounting base can rotate relatively so as to switch between a limiting state and a free state; in the limit state, the limit part is abutted against the stop surface;

the locking assembly comprises a driving piece, is suitable for driving the limiting piece to move through the driving piece so as to adjust the relative position between the limiting part and the stopping surface and lock the limiting piece and the driving piece;

the stop surfaces comprise a first stop surface and a second stop surface, and the limit states comprise a first limit state and a second limit state;

in the second limit state, the limit part is stopped against the second stop surface;

the locking assembly comprises an adjusting bolt, a first bolt hole arranged in the machine body of the driving piece and a second bolt hole arranged in the limiting piece, and the adjusting bolt is detachably matched with the first bolt hole and the second bolt hole;

or, the locking subassembly includes a plurality of locking grooves and spring bolt, the spring bolt is telescopically located the locating part, and is a plurality of the locking groove is followed the moving direction interval of locating part sets up in the driving piece, the spring bolt is suitable for the cooperation to be in the locking inslot is with the locking the locating part.

2. The spacing device of claim 1, wherein the driving member is a stepping motor, and an output shaft of the stepping motor is in transmission connection with the spacing member.

3. The spacing device of claim 1, wherein said mounting base has a first mating surface, said spacing portion has a second mating surface, and said second mating surface is adapted to slidably mate with said first mating surface in said free state.

4. The stop device according to claim 3, wherein said first engagement surface and said second engagement surface are each a correspondingly shaped arcuate surface.

5. The spacing device of claim 1, wherein said mounting seat is provided with a sliding groove, an end of said sliding groove forming said stop surface, said spacing portion being slidably fitted in said sliding groove.

6. The limit device of claim 1, wherein an elastic member is further disposed between the lock tongue and the limit member, and the elastic member is adapted to push the lock tongue to extend into the locking groove.

7. A hinge assembly including a spacing device as claimed in any one of claims 1 to 6, wherein the mounting seat is a hinge seat.

8. A stowage bin, comprising:

the hinge assembly of claim 7;

9. The storage cabinet of claim 8, wherein the door body is provided with an end cover, one end of the end cover close to the cabinet body is provided with a fixing hole, and the driving piece is fixed in the fixing hole.

10. The stowage bin of claim 8 further comprising:

11. A cabinet according to claim 8, wherein the cabinet is a refrigerator, a wine chest or a retail chest.