CN113124606B - Door operating assembly and refrigerator - Google Patents

Abstract

The invention relates to the field of automatic door opening and closing, and provides a door operation assembly and a refrigerator. The door operation assembly comprises a fixed part, is arranged on one of the box body or the door body and is provided with a fixed shaft; the rotating piece is arranged on the other one of the box body or the door body and comprises a rotating body and a first push rod extending along the rotating body; and the driving mechanism is configured to drive the rotating body to rotate relative to the fixed shaft, so that the first push rod is in contact with the fixed shaft and is stressed to open the door body. The refrigerator door opening device is simple in structure and high in reliability, solves the problems of labor waste and inconvenience in door opening of the conventional refrigerator, is convenient and fast in door opening operation, and enables a user to liberate both hands.

Description

Door operating assembly and refrigerator

Technical Field

The invention relates to the technical field of automatic door opening and closing, in particular to a door operation assembly and a refrigerator.

Background

With the development of science and technology, people have not only requirements on refrigeration but also increasingly high requirements on automation of the refrigerator.

At present, fewer automatic door-opening refrigerators are sold in the market, and although few automatic door-opening refrigerators appear, one scheme is that the push rod is controlled to be pushed out and pulled back through the on-off of an electromagnet so as to achieve the effect of pushing a door body; the scheme has the defects that the noise is high, people can be collided when the electromagnet is pushed away, the service life of the electromagnet is short, and the like. The other scheme is that the motor pushes the door body away through gear and rack transmission; the scheme has the defects of large volume, unstable pushing, easy damage of the rack and the like. Therefore, the existing automatic door-opening refrigerators have the defects of complex structure and inconvenient door opening.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a door operation assembly to solve the problems of labor waste and inconvenience in opening the door of the conventional refrigerator.

The invention further provides the refrigerator.

A door operating assembly according to an embodiment of the first aspect of the invention comprises:

the fixing piece is arranged on one of the box body or the door body and is provided with a fixing shaft;

the rotating piece is arranged on the other one of the box body or the door body and comprises a rotating body and a first push rod extending along the rotating body;

and the driving mechanism is configured to drive the rotating body to rotate relative to the fixed shaft, so that the first push rod is in contact with the fixed shaft and is stressed to open the door body.

According to the door operating assembly of this embodiment, through setting up above-mentioned rotation piece, with rotate a complex mounting, the drive rotates a pivoted actuating mechanism, and when opening the door, actuating mechanism drive rotates the body and rotates, and first push rod takes place the atress with the fixed axle, backs down the door body, and in case backs down, the door body can be opened the door body under the effect of surplus kinetic energy. The door operating assembly of this embodiment simple structure, reliability are high, and the simple operation of opening the door can let the user liberate both hands to can drop the handle cancellation of present refrigerator, realize opening the door automatically, solve the difficult washing scheduling problem of handle outward appearance greasy dirt.

According to an embodiment of the present invention, the rotating member further includes a second push rod extending along the rotating body;

the driving mechanism is also configured to drive the rotating body to rotate relative to the fixed shaft, so that the second push rod is in contact with the fixed shaft and is stressed to close the door body.

According to one embodiment of the invention, the door operating assembly further comprises an inductive sensor in signal communication with the drive mechanism, configured to receive a trigger signal and trigger the drive mechanism.

According to one embodiment of the invention, the length of the first push rod is greater than that of the second push rod, and an inlet and an outlet of the fixed shaft are formed between the ends of the first push rod and the second push rod.

According to an embodiment of the present invention, the rotating body is formed with a rotating end and a bending end, and the first push rod and the second push rod extend along the bending end;

the rotation center of the rotation end is configured with a connection hole.

According to one embodiment of the invention, the bending angle of the bending end is 90 degrees, and a transition fillet is formed at the bending part;

the first push rod and the second push rod are parallel.

According to an embodiment of the invention, the fixing further comprises:

a fixing seat configured to mount the fixing shaft, the fixing shaft being mounted on one of the cabinet or the door body through the fixing seat.

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

the damping sleeve is provided with an axial through hole and fixedly sleeved on the fixed shaft through the axial through hole;

the outer diameter of the shock absorption sleeve is smaller than the distance between the first push rod and the second push rod.

According to an embodiment of the present invention, the rotating body is formed with a rotating end, the first push rod and the second push rod extend along the rotating end, and a free end of the second push rod forms a bending section bending toward the first push rod.

According to one embodiment of the invention, the bending angle of the bending section is 90 degrees, and a transition fillet is formed at the bending part;

the rotation center of the rotation end is configured with a connection hole.

According to one embodiment of the invention, the fixing member comprises:

a fixed seat;

the fixing column is fixedly installed on the fixing seat, a through hole is formed in the axial direction of the fixing column, a torsion spring is installed in the through hole, and the fixing shaft is connected with the fixing column through the torsion spring.

According to one embodiment of the invention, the fixing seat is provided with a first hole site, one end of the through hole far away from the fixing seat is provided with a second hole site, the torsion spring passes through the through hole, one end of the torsion spring is clamped in the first hole site, the other end of the torsion spring is clamped in the second hole site, and the lower end of the fixing shaft is abutted against the torsion spring and is riveted with the through hole.

According to one embodiment of the invention, the drive mechanism comprises:

a drive motor configured with an output shaft;

and the output end of the speed reducing mechanism is fixedly connected with the rotating center of the rotating body.

According to an embodiment of the invention, the drive mechanism further comprises: the box body, driving motor with reduction gears all locates in the box body, reduction gears's output extends the box body, it installs to rotate the piece outside the box body, just the center of rotation of rotating the body with reduction gears's output matches fixedly.

According to one embodiment of the invention, the box body comprises a first box body and a second box body which are covered up and down, and the induction sensor is arranged in the box body and close to one end of the driving motor.

The refrigerator according to the embodiment of the second aspect of the invention comprises a refrigerator body, a door body rotationally connected with the refrigerator body and the door operation assembly;

the fixed part is arranged on one of the box body or the door body, and the rotating part is arranged on the other of the box body or the door body.

The refrigerator of the present embodiment has all the advantages of the door operating assembly due to the door operating assembly, and thus, the description thereof is omitted.

According to one embodiment of the invention, the driving mechanism is installed in a box body, and the end part of the box body or the door body is provided with a groove for installing the box body, and the groove top of the groove is flush with the top of the box body.

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 a schematic structural diagram of a door body with a rotating member and a box body with a fixed member in a door operating assembly according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a door body with a rotating member and a fixing member mounted thereon in a door operating assembly according to an embodiment of the present invention;

fig. 3 to 4 are schematic views illustrating a process of opening a door body by the door operating assembly according to the embodiment of the present invention;

fig. 5 to 6 are schematic views illustrating a process of closing the door body by the door operating assembly according to the embodiment of the present invention;

fig. 7 to 8 are schematic views illustrating a process of opening a door body by a door operating assembly according to another embodiment of the present invention;

fig. 9 to 10 are schematic views illustrating a process of closing the door body by the door operating assembly according to another embodiment of the present invention;

FIG. 11 is an exploded view of a fastener in a door operating assembly according to an embodiment of the present invention;

FIG. 12 is a schematic view of an exploded view of another mount in a door operating assembly according to an embodiment of the present invention;

FIG. 13 is a schematic view of the assembly of the rotary member and the drive mechanism in the door operating assembly in accordance with the embodiment of the present invention;

FIG. 14 is an exploded schematic view of FIG. 13;

FIG. 15 is an exploded view of the rotary member and drive mechanism of another embodiment of the door operating assembly of the present invention;

fig. 16 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

fig. 17 is a partial sectional view of fig. 16 through the rotating member and the fixing member in the front and rear direction of the refrigerator.

Reference numerals:

1: a box body; 2: a door body; 3: a drive mechanism; 3-1: a first case; 3-2: a second box body; 3-3: an inductive sensor; 3-4: a drive motor; 3-5: a worm and worm gear set; 3-6: a gear set; 4: a rotating member; 4-1: a first push rod; 4-2: a second push rod; 4-3: connecting holes; 5: a fixing member; 5-1: a fixed shaft; 5-2: a torsion spring; 5-2-1: one end of a torsion spring; 5-2-2: the other end of the torsion spring; 5-3: fixing the column; 5-3-1: a first hole site; 5-4: a fixed seat; 5-4-1: and a second hole site.

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, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. 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.

It should be noted that the embodiment of the present invention is described only by taking the door operating assembly as an example applied to a refrigerator. It should be understood that the door operating assembly is not limited to application in refrigerators, but may be applied in any application where similar application requirements apply, for example, the door operating assembly may be applied in refrigerated cabinets, sales counters, snack bins and even display cases, etc.

In a first aspect, an embodiment of the present invention provides a door operating assembly, as shown in fig. 1 and 2, including:

and a fixing member 5 provided on one of the case 1 or the door 2, the fixing member 5 having a fixing shaft 5-1.

And a rotating member 4 provided on the other one of the body 1 or the door 2, as shown in fig. 13 and 14, the rotating member 4 including a rotating body and a first push rod 4-1 extending along the rotating body.

And the driving mechanism 3 is configured to drive the rotating body to rotate relative to the fixed shaft 5-1, so that the first push rod 4-1 is in contact with the fixed shaft to be stressed to open the door body 2.

According to the door operation assembly of the embodiment, the rotating member 4 and the fixing member 5 matched with the rotating member 4 are arranged, the driving mechanism 3 for driving the rotating member 4 to rotate is arranged, when the door is opened, the driving mechanism 3 drives the rotating body to rotate, the first push rod 4-1 is contacted with the fixing shaft 5-1 to generate stress, in fig. 1, for example, when the door body 2 is positioned on the right side of a human hand and a human body faces the door body 2, when the driving mechanism 3 drives the rotating body to rotate clockwise, the side, contacted with the fixing shaft 5-1, of the first push rod 4-1 is pushed by the fixing shaft 5-1 to the outside of the door body 2 to push the door body 2 open, and once the door body 2 is pushed open, namely, the door body 2 can be opened under the action of residual kinetic energy at the initial speed; the problem of refrigerator open the door in the past hard, open the inconvenient problem of door is solved, the simple operation of opening the door, let the user liberate both hands.

The door operating means of this embodiment, simple structure, reliability are high, and the simple operation of opening the door can let the user liberate both hands to can fall the handle cancellation of present refrigerator, realize opening the door automatically, solve the difficult washing scheduling problem of handle outward appearance greasy dirt, the refrigerator door body 2 area is bigger after canceling the handle moreover, thereby for the setting headspace of other structures, leaves more spaces for 2 appearance design of the door body.

According to an embodiment of the present invention, the rotating member 5 further includes a second push rod 4-2 extending along the rotating body, and the driving mechanism 3 is further configured to drive the rotating body to rotate relative to the fixed shaft 5-1, such that the second push rod 4-2 is forced to contact with the fixed shaft 5-1 to close the door body 2.

In this embodiment, when the door 2 is closed to a certain angle, the second push rod 4-2 contacts the fixed shaft 5-1, the driving mechanism 3 rotates in the opposite direction of the door opening direction, so that the second push rod 4-2 rotates relative to the fixed shaft 5-1, and the door 2 is closed and locked. The door can be closed conveniently and reliably. When the door is closed to a certain angle, the door body 2 and the locking door body 2 can be automatically closed, so that the door body 2 is prevented from bouncing off after the door is closed or the door body 2 collides with the box body 1 to generate noise and the like.

It should be noted that "the fixed part 5 is disposed on one of the box body 1 or the door body 2, and the rotating part 4 is disposed on the other of the box body 1 or the door body 2" means that the fixed part 5 may be disposed on the box body 1 or the door body 2, and the rotating part 4 may also be disposed on the box body 1 or the door body 2, and when the fixed part 5 is disposed on the box body 1, the rotating part 4 is disposed on the door body 2, as shown in fig. 1; when the fixed member 5 is provided on the door body 2, the rotating member 4 is provided on the case 1, as shown in fig. 2. The specific setting mode can be specifically selected according to needs.

In addition, the position relationship between the rotating member 4 and the fixed shaft 5-1 does not require the rotating member 4 and the fixed shaft 5-1 to be opposite to each other, and the rotating member 4 and the fixed shaft 5-1 can be staggered by a certain distance as long as the rotating member and the fixed shaft can interact with each other when the door is opened and closed.

In one embodiment, the door operating assembly further comprises an inductive sensor 3-3, the inductive sensor 3-3 being in signal connection with the drive mechanism 3 and configured to receive a trigger signal and trigger said drive mechanism 3. The door closing device comprises a driving mechanism 3 triggered by receiving a door opening signal or a driving mechanism 3 triggered by receiving a door closing signal.

Specifically, the door opening signal of the inductive sensor 3-3 may be a trigger signal such as voice, gesture, touch, mechanical key, and the like, and the door closing signal of the inductive sensor 3-3 may be a signal received by the inductive sensor 3-3, which is triggered when the second push rod 4-2 contacts the fixed shaft 5-1.

In one embodiment, in order to avoid the interference between the first push rod 4-1 and/or the second push rod 4-2 and the fixed shaft 5-1 when the rotating body rotates, the embodiment forms an inlet and outlet of the fixed shaft 5-1 between the ends of the first push rod 4-1 and the second push rod 4-2 by setting the length of the first push rod 4-1 to be greater than that of the second push rod 4-2. The fixing shaft 5-1 can smoothly enter between the first push rod 4-1 and the second push rod 4-2 through the inlet and the outlet when the door is opened or closed.

In this embodiment, the fixing element 5 is disposed on the box 1, and the rotating element 4 is disposed on the door body 2, for example, in this embodiment, the opening (i.e., the above-mentioned inlet/outlet) between the first push rod 4-1 and the second push rod 4-2 faces the free end of the door body 2 (which may also be referred to as the opening/closing end of the door body 2, which is the end of the door body 2 away from the hinge joint with the box 1). As shown in fig. 3, in a normal condition, the door 2 is in a closed state, and when a trigger signal (voice, gesture, touch, mechanical key, etc.) is received, the driving mechanism 3, for example, the driving motor 3-4, starts to rotate clockwise to drive the first push rod 4-1 to contact with the fixed shaft 5-1 and bear a force, and under the action of a reaction force, the door 2 is opened; when the first push rod 4-1 is separated from the fixed shaft 5-1, the driving motor 3-4 stops moving, and the door body 2 continues to move under the action of residual kinetic energy, so as to completely push the door body 2 open, as shown in fig. 4. After a time delay of, for example, 5 seconds, the driving motor 3-4 returns to a certain angle and waits for a door closing signal.

As shown in fig. 5, when the door is closed, the door 2 is pushed to a certain angle, so that the fixed shaft 5-1 contacts with the second push rod 4-2, the induction sensor 3-3 detects the state and triggers the driving motor 3-4, the driving motor 3-4 starts to rotate in the counterclockwise direction, the second push rod 4-2 is driven to rotate relative to the fixed shaft 5-1, fig. 6 is an intermediate state of the door closing, and the whole door 2 is driven to close under the action force of the driving motor 3-4 continuing to rotate. This is an indication of the overall state of motion. By means of the method, the door body 2 is opened and closed, operation is convenient, and the handle position is cancelled when the door body 2 is designed, so that the appearance of the whole product is simpler.

Of course, it can be understood that, when the fixing member 5 is disposed on the box body 1, the rotating member 4 is disposed on the door body 2, and the openings of the first push rod 4-1 and the second push rod 4-2 face the hinged end of the door body 2, the difference from the above embodiment is that the rotation direction of the driving motor 3-4 is changed, that is, the driving motor 3-4 rotates counterclockwise to be the door opening direction, and the driving motor 3-4 rotates clockwise to be the door closing direction, and the others are the same as the above embodiment.

By analogy, for the case that the fixing member 5 is disposed on the door body 2, the rotating member 4 is disposed on the box body 1, and the openings of the first push rod 4-1 and the second push rod 4-2 face the free end or the hinged end of the door body 2, which is not illustrated. The principle is the same as in the above-described embodiment.

No matter how the installation position or the installation direction of the rotating member 4 is changed, it is sufficient if the first push rod 4-1 can be in contact with the fixed shaft 5-1 and be forced toward the opening direction of the door body 2 to open the door body 2 or the second push rod 4-2 is in contact with the fixed shaft 5-1 and be forced toward the closing direction of the door body 2 to close the door body 2.

According to an embodiment of the present invention, the rotating body is formed with a rotating end and a bending end, the first push rod 4-1 and the second push rod 4-2 extend along the bending end to form an L-like structure, and the first push rod 4-1 and the second push rod 4-2 can be integrally formed with the bending end to ensure sufficient structural strength;

the rotation center of the rotation end is provided with a connecting hole 4-3 so as to be fixedly connected with the output end of the driving mechanism 3 and driven to rotate by the driving mechanism 3. The structural design facilitates the matching stress of the rotating part 4 and the fixed shaft 5-1.

According to an embodiment of the present invention, as shown in fig. 1 and 2, the bending angle of the bending end is 90 degrees to form a vertical position relationship between the first push rod 4-1 and the second push rod 4-2 and the rotating end, so that when the rotating end rotates, the first push rod 4-1 or the second push rod 4-2 can bear force; and a transition fillet is formed at the bending part, so that stress concentration is avoided. Of course, the bending angle of the bending end is not required to be 90 degrees, and other angles are also possible.

In this embodiment, the first push rod 4-1 and the second push rod 4-2 are parallel to each other, so as to ensure that the fixing shaft 5-1 can smoothly enter between the two push rods. Of course, the first push rod 4-1 and the second push rod 4-2 are not required to be parallel, and may be disposed at an angle therebetween.

According to an embodiment of the present invention, as shown in fig. 11, the fixing member 5 further includes:

and a fixing seat 5-4 configured to mount a fixing shaft 5-1, the fixing shaft 5-1 being mounted on one of the body 1 or the door 2 through the fixing seat 5-4, the fixing seat 5-4 being provided with a mounting hole and fastened to the body 1 or the door 2 by a fastening member such as a screw.

According to one embodiment of the invention, the fixing member 5 further comprises:

the damping sleeve is provided with an axial through hole and fixedly sleeved on the fixed shaft 5-1 through the axial through hole;

the outer diameter of the damping sleeve is smaller than the distance between the first push rod 4-1 and the second push rod 4-2, so that the fixed shaft 5-1 sleeved with the damping sleeve can enter between the first push rod 4-1 and the second push rod 4-2. The fixed shaft 5-1 can contact with the first push rod 4-1 or the second push rod 4-2 to be stressed, and the shock absorption sleeve can reduce impact force during contact.

According to another embodiment of the present invention, as shown in fig. 15, the rotating body is formed with a rotating end, the first push rod 4-1 and the second push rod 4-2 extend outward along the rotating end, an acute angle is formed between the first push rod 4-1 and the second push rod 4-2, and a free end of the second push rod 4-2 forms a bending section bending towards the first push rod 4-1, the bending section forms a hook for hooking on the fixed shaft 5-1 when the door is closed, and a transition inclined plane inclining towards the first push rod 4-1 is formed between a side of the second push rod 4-2 facing the first push rod 4-1 and the rotating end, so that on one hand, the strength of the second push rod 4-2 can be increased, and the rotating body can be used as a force application plane when rotating.

The working process of this embodiment is described as follows, in this embodiment, the fixed part 5 is disposed on the box body 1, and the rotating part 4 is disposed on the door body 2 to illustrate the whole process of opening and closing the door, in this embodiment, the opening between the first push rod 4-1 and the second push rod 4-2 faces the free end of the door body 2. As shown in fig. 7, in a normal condition, the door 2 is in a closed state (the bending section of the second push rod 4-2 is hooked on the fixed column 5-3), when a trigger signal (voice, gesture, touch, mechanical key, etc.) is received, the driving mechanism 3, for example, the driving motor 3-4, starts to rotate clockwise, the hook of the second push rod 4-2 gradually leaves the fixed column 5-3 and drives the first push rod 4-1 to contact with the fixed shaft 5-1 and bear a force, and under the action of a reaction force, the door 2 is opened; when the first push rod 4-1 is separated from the fixed shaft 5-1, the driving motor 3-4 stops moving, and the door body 2 continues to move under the action of residual kinetic energy, so as to completely push the door body 2 open, as shown in fig. 8. After a delay of a certain time, for example 5 seconds, the driving motor 3-4 returns to a certain angle and waits for a door closing signal.

As shown in fig. 9, when the door is closed, the door body 2 is pushed to a certain angle, so that the fixed shaft 5-1 contacts with the hook of the second push rod 4-2 to be stressed, the induction sensor 3-3 detects the state and triggers the driving motor 3-4, the driving motor 3-4 starts to rotate in the counterclockwise direction, fig. 10 shows an intermediate state of the door closing, and under the action of the continuous rotation of the driving motor 3-4, the hook of the second push rod 4-2 is hooked on the fixed shaft 5-1 to drive the whole door body 2 to close. By means of the method, the door body 2 is opened and closed, operation is convenient, and the handle position is cancelled when the door body 2 is designed, so that the appearance of the whole product is simpler.

Certainly, when the door is closed, the door body 2 can be directly pushed to the hook of the second push rod 4-2 to be hooked on the fixed shaft 5-1, so that the whole door body 2 is closed, in the process, the driving motor 3-4 does not work, the door closing process can be accelerated, and electric energy is saved.

According to one embodiment of the invention, the bending angle of the bending section is 90 degrees, the bending section is not easy to hook on the fixed column 5-3 when the bending angle is less than 90 degrees, and the bending section is not easy to hook firmly when the bending angle is more than 90 degrees, so that the bending section is convenient to hook on the fixed column 5-3, and the stability is high; in addition, a transition fillet is formed at the bending part, so that stress concentration is avoided.

The rotating center of the rotating end is provided with a connecting hole 4-3 so as to be fixedly connected with the output end of the driving mechanism 3 and driven to rotate by the driving mechanism 3.

In order to reduce the hard contact between the hook of the second push rod 4-2 and the fixed shaft 5-1, the fixing member 5 may be a structure in which the fixed shaft 5-1 is sleeved with a damping sleeve.

According to another embodiment of the present invention, as shown in fig. 12, the fixing member 5 includes a fixing base 5-4 and a fixing post 5-3.

Specifically, the fixed column 5-3 is fixedly mounted on the fixed seat 5-4, a through hole is formed in the fixed column 5-3 in the axial direction, a torsion spring 5-2 is mounted in the through hole, the fixed shaft 5-1 is connected with the fixed column 5-3 through the torsion spring 5-2, and the fixed shaft 5-1 can conveniently rotate relative to the fixed column 5-3 through the torsion spring 5-2, so that when the first push rod 4-1 or the second push rod 4-2 is in contact with the fixed column 5-3, the fixed column 5-3 can provide buffering by following the clockwise rotation of the first push rod 4-1 or the second push rod 4-2 in contact with the fixed column 5-3 through the fixed column 5-3, and after the bent section hooks the fixed column 5-3, the fixed column 5-3 is restored to the original position state under the action of the torsion spring 5-2.

According to an embodiment of the invention, in order to facilitate the installation of the torsion spring 5-2, the fixing seat 5-4 is provided with a first hole site 5-3-1, one end of the through hole far away from the fixing seat 5-4 is provided with a second hole site 5-4-1, the torsion spring 5-2 passes through the through hole, one end 5-2-1 of the torsion spring is clamped at the first hole site 5-3-1, the other end 5-2-2 of the torsion spring is clamped at the second hole site 5-4-1, the lower end of the fixing shaft 5-1 is abutted against the torsion spring 5-2 and riveted with the through hole, after the fixing shaft 5-1 is riveted with the through hole, the fixing shaft 5-1 and the fixing column 5-3 are connected into a whole, because the fixing shaft 5-1 and the fixing column 5-3 do not need to be detached in the normal working process, reliable connection of the fixing shaft and the fixing column 5-3 can be ensured by riveting, and the rotation of the fixed shaft 5-1 is not influenced.

Of course, it is understood that the fixing shaft 5-1 and the through hole do not have to be riveted, and other connection methods such as clamping connection and the like can be adopted.

According to an embodiment of the present invention, the fixed shaft 5-1 has an outer diameter smaller than a distance between the first push rod 4-1 and the second push rod 4-2 so as not to interfere with the fixed shaft 5-1 entering between the first push rod 4-1 and the second push rod 4-2.

Of course, it will be understood that the same applies to the rotating member 4 having the first push rod 4-1 parallel to the second push rod 4-2, and the fixed shaft 5-1 provided with the torsion spring 5-2.

According to an embodiment of the present invention, as shown in fig. 13 to 15, the drive mechanism 3 includes:

drive motors 3-4 configured with output shafts.

The output shaft of the driving motor 3-4 is connected with the input end of the speed reducing mechanism, the output end of the speed reducing mechanism is fixedly connected with the rotating center of the rotating body, the connecting hole 4-3 is formed in the rotating center, the rotating center is fixedly sleeved at the output end through the connecting hole 4-3, the rotating piece 4 is fixedly connected with the driving motor 3-4, in order to prevent the rotating piece 4 and the output end of the speed reducing mechanism from rotating relatively, the connecting hole 4-3 can be set to be a non-circular hole, the outer surface of the output end of the speed reducing mechanism is matched with the non-circular hole, and the fact that the rotating piece 4 and the output end of the speed reducing mechanism can rotate synchronously after being assembled is guaranteed.

In one embodiment, the non-circular holes may be polygonal holes, elliptical holes, circular holes with at least one flat surface, or the like. The specific non-circular hole form is not limited, and the non-circular hole form can be a regular polygonal hole, such as a regular triangular hole, a square hole, a regular pentagonal hole, a regular hexagonal hole and the like, and the regular polygonal hole can be selected to ensure that the fixed shaft 5-1 is concentric with the output end of the speed reducing mechanism, so that the stability of the two after assembly is good, and the rotation is more stable. The non-circular apertures may also be irregular regular polygonal apertures, such as isosceles triangular apertures, rectangular apertures, and the like. Of course, other suitable non-circular shapes may be used.

In this embodiment, the speed reduction mechanism adopts the worm and worm gear set 3-5 and the gear set 3-6 matched with the worm and worm gear set 3-5, the worm and worm gear set 3-5 and the gear set 3-6 are used for reducing the speed of the driving motor 3-4, the speed reduction ratio is determined according to the rotating speed required by output, and the specific number of the gear sets 3-6 can be specifically selected according to the speed reduction ratio.

In this embodiment, the axis of the output shaft of the driving motor 3-4 is perpendicular to the axis of the gear set 3-6, so that the rotation direction can be changed, and the flexible arrangement of the rotating member 4 is facilitated.

According to an embodiment of the present invention, in order to facilitate the installation of the driving mechanism 3, the driving mechanism 3 further comprises: the box body, driving motor 3-4 and reduction gears are all located in the box body, the output of reduction gears extends out of the box body, rotates piece 4 and installs outside the box body, and the rotation center that rotates the body matches fixedly with the output of reduction gears.

According to an embodiment of the present invention, in order to facilitate installation of the driving mechanism 3 in the box, the box includes a first box 3-1 and a second box 3-2 which are covered up and down, and after the driving mechanism 3 is installed, the first box 3-1 and the second box 3-2 can be fixed into a whole by means of screws, ultrasonic welding, and the like.

In order to facilitate the installation of the inductive sensor 3-3, the inductive sensor 3-3 is also arranged in the box body and can be close to one end of the driving motor 3-4, so that the inductive sensor 3-3 is conveniently connected with the driving motor 3-4.

In a second aspect, as shown in fig. 16 to 17, a refrigerator according to an embodiment of the present invention includes a refrigerator body 1, a door 2 rotatably connected to the refrigerator body 1, and the door operating assembly.

The fixed part 5 is disposed on one of the box body 1 or the door body 2, and the rotating part 4 is disposed on the other of the box body 1 or the door body 2. That is, the fixing member 5 may be disposed on the box body 1 or the door body 2, and the rotating member 4 may be disposed on the box body 1 or the door body 2, wherein when the fixing member 5 is disposed on the box body 1, the rotating member 4 is disposed on the door body 2, and when the fixing member 5 is disposed on the door body 2, the rotating member 4 is disposed on the box body 1.

The refrigerator of this embodiment, owing to be equipped with above-mentioned door operating assembly, simple structure, reliability are high, and the simple operation of opening the door can let the user liberate both hands to can drop the handle cancellation of present refrigerator, realize opening the door automatically, solve the difficult washing scheduling problem of handle outward appearance greasy dirt, the refrigerator door body 2 area is bigger after the cancellation handle in addition, thereby for the setting headspace of other structures, leaves more spaces for 2 outward appearance designs of the door body. When the door is closed to a certain angle, the door body 2 and the locking door body 2 can be automatically closed, and the phenomenon that the door body 2 bounces open or the door body 2 collides with the box body 1 to generate noise after the door is closed is avoided.

According to one embodiment of the invention, the driving mechanism 3 is installed in the box body, the end part of the box body 1 or the door body 2 is provided with a groove for installing the box body, and the groove top of the groove is flush with the top of the box body; so that the box body can not be seen from the front surface of the refrigerator, and the appearance of the refrigerator is ensured.

In this embodiment, the door operating assembly is disposed at the top of the refrigerator, but the door operating assembly may be disposed at other positions of the refrigerator.

For the double-door refrigerator, each door body 2 is correspondingly provided with a door operation assembly.

The above embodiments are only for illustrating the present invention and are not to be construed as limiting the present 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 (16)

1. A door operating assembly, comprising:

the fixing piece is configured to be arranged on one of the box body or the door body and is provided with a fixing shaft;

the rotating piece is configured to be arranged on the other one of the box body or the door body and comprises a rotating body and a first push rod and a second push rod which extend along the rotating body;

the driving mechanism is configured to drive the rotating body to rotate relative to the fixed shaft, so that the first push rod is in contact with the fixed shaft and stressed to open the door body, and the second push rod is in contact with the fixed shaft and stressed to close the door body.

2. The door operating assembly of claim 1, further comprising: and the induction sensor is in signal connection with the driving mechanism and is configured to receive a trigger signal and trigger the driving mechanism.

3. The door operating assembly of claim 1, wherein the first push rod has a length greater than a length of the second push rod, an access opening of the stationary shaft being formed between ends of the first push rod and the second push rod.

4. The door operating assembly of claim 1, wherein the rotating body is formed with a rotating end and a bent end, the first push rod and the second push rod extending along the bent end;

the rotation center of the rotation end is configured with a connection hole.

5. The door operating assembly of claim 4, wherein the bent end has a bending angle of 90 degrees and a transition radius is formed at the bending;

the first push rod and the second push rod are parallel.

6. The door operating assembly of claim 1, wherein the rotating body is formed with a rotating end, the first push rod and the second push rod extend along the rotating end, and a free end of the second push rod forms a bent section bent toward the first push rod.

7. The door operating assembly of claim 6, wherein the bending angle of the bending section is 90 degrees, and a transition fillet is formed at the bending;

the rotation center of the rotation end is configured with a connection hole.

8. The door operating assembly of claim 1, wherein the fixture further comprises:

a fixing seat configured to mount the fixing shaft, the fixing shaft being mounted on one of the cabinet or the door body through the fixing seat.

9. The door operating assembly of claim 1, wherein the fixture further comprises:

the damping sleeve is provided with an axial through hole and fixedly sleeved on the fixed shaft through the axial through hole;

the outer diameter of the shock-absorbing sleeve is smaller than the distance between the first push rod and the second push rod.

10. The door operating assembly of claim 1, wherein the fixture further comprises:

a fixed seat;

the fixing column is fixedly installed on the fixing seat, a through hole is formed in the axial direction of the fixing column, a torsion spring is installed in the through hole, and the fixing shaft is connected with the fixing column through the torsion spring.

11. The door operating assembly of claim 10, wherein the fixing base is provided with a first hole, one end of the through hole, which is far away from the fixing base, is provided with a second hole, the torsion spring passes through the through hole, one end of the torsion spring is clamped in the first hole, the other end of the torsion spring is clamped in the second hole, and the lower end of the fixing shaft abuts against the torsion spring and is riveted with the through hole.

12. The door operating assembly of claim 2, wherein the drive mechanism comprises:

a drive motor configured with an output shaft;

and the output end of the speed reducing mechanism is fixedly connected with the rotating center of the rotating body.

13. The door operating assembly of claim 12, wherein the drive mechanism further comprises: the box body, driving motor with reduction gears all locates in the box body, reduction gears's output extends the box body, it installs to rotate the piece outside the box body, just the center of rotation of rotating the body with reduction gears's output matches fixedly.

14. The door operating assembly of claim 13, wherein the box includes a first box and a second box that are closed up and down, and the inductive sensor is disposed within the box and proximate to an end of the drive motor.

15. A refrigerator comprising a refrigerator body and a door body rotatably connected to the refrigerator body, characterized by further comprising a door operating assembly as claimed in any one of claims 1 to 14;

the fixed part is arranged on one of the box body or the door body, and the rotating part is arranged on the other of the box body or the door body.

16. The refrigerator according to claim 15, wherein the driving mechanism is installed in a case, and an end of the cabinet or the door is configured with a groove for installing the case, and a groove top of the groove is flush with a top of the case.

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