CN215983503U - Automatic door opening device and refrigerator - Google Patents

Abstract

The utility model relates to an automatic door opener, comprising: a loading mechanism for storing kinetic energy; the pushing mechanism comprises a push rod for pushing the door body; and the transmission mechanism is used for connecting the loading mechanism with the push rod in a transmission way. The utility model also relates to a refrigerator. When the door body pushes the push rod to retract, the push rod drives the transmission mechanism to drive the loading mechanism, so that the elastic body is deformed to be in an extension or compression state and is locked under the action of the locking assembly to store kinetic energy of opening the door body; when the locking assembly is unlocked, the elastic body releases kinetic energy, the loading mechanism drives the transmission mechanism to drive the push rod to extend out, and therefore the push rod jacks the door body.

Description

Automatic door opening device and refrigerator

[ technical field ] A method for producing a semiconductor device

The utility model relates to the field of refrigerator accessories, in particular to an automatic door opening device, and further particularly relates to a refrigerator.

[ background of the utility model ]

In the refrigerator field, along with the development of technique, improve automatic level, more and more refrigerator is improving its intelligent horizontally direction on study, wherein, automatically opening the door is a more common function in the intelligent control, at present, often can dispose door opener in order to realize automatically opening the door, but, utility model people discovers following problem in the use:

first, the current door opening devices include two types: one of the two is to open and close the door body through the driving of a motor, but the motor is easy to damage due to the opening and closing frequency, meanwhile, the maintenance is time-consuming and labor-consuming after the motor is damaged, and even more, the normal opening and closing of the door body are influenced after the motor is damaged, so that the normal use of household appliances is influenced, and great inconvenience is caused to users; therefore, another door opening device is designed to be pushed open by pushing the door body, driving force for pushing the door body needs to be provided, the existing motor is frequently used for driving, however, the driving force of the motor is more complicated to calibrate, meanwhile, the driving of the motor needs to additionally consume electric energy, and in the field of refrigerators needing to be frequently opened, the electric energy consumed by the motor is not negligible.

In view of the above, there is a need to develop an automatic door opening device and a refrigerator to solve the above problems.

[ Utility model ] content

Aiming at the defects in the prior art, the utility model aims to provide an automatic door opening device, which comprises:

a loading mechanism for storing kinetic energy;

the pushing mechanism comprises a push rod for pushing the door body; and

the transmission mechanism is used for connecting the loading mechanism with the push rod in a transmission way;

when the door body pushes the push rod to retract, the push rod drives the transmission mechanism to drive the loading mechanism, so that the elastic body is deformed to be in an extension or compression state and is locked under the action of the locking assembly to store kinetic energy of opening the door body;

when the locking assembly is unlocked, the elastic body releases kinetic energy, the loading mechanism drives the transmission mechanism to drive the push rod to extend out, and therefore the push rod jacks the door body.

Preferably, the loading mechanism comprises a guide part and a sliding part in sliding connection with the guide part, and the elastic body is arranged on a fixed base surface of the guide part and the sliding part.

Preferably, the sliding part is provided with a rack, the transmission mechanism is a gear, the push rod is provided with a transmission part meshed with the gear, and the rack is meshed with the gear, so that the sliding part, the gear and the push rod form a transmission structure.

Preferably, the transmission mechanism comprises a large gear and a small gear driven by the large gear;

wherein, the transmission part is meshed with the small gear, and the large gear is meshed with the rack.

Preferably, one side of the guide part extends outwards to form a slide rail, the sliding part is connected with the slide rail in a sliding manner, and the locking assembly is arranged at the mobile terminal end of the sliding part;

the push rod drives the sliding part to move towards the direction of the locking component, so that the elastic body is elastically stretched and is limited to recover by connecting the locking component with the sliding part.

Preferably, the locking assembly comprises an unlocking part and a locking block, the locking block is arranged on the sliding part, and a locking position is arranged at the mobile terminal end of the sliding rail;

the sliding part and the guide part are moved to the locking position through the locking block on the sliding part to form a locking structure, and the unlocking part pushes the locking block away from the locking position.

Preferably, the guide part is provided with a sliding chute extending along the moving direction of the sliding part, and the tail end of the sliding chute forms a locking position;

the locking piece is connected in the sliding groove in a sliding mode, so that the locking piece slides along the track limited by the sliding groove.

Preferably, an elastic portion is disposed between the locking block and a base surface of the guide portion, and the locking block is pushed by an elastic force of the elastic portion to move to the locking position relative to the sliding portion.

Preferably, the pushing mechanism further comprises a bearing plate, and the bearing plate is provided with installation positions of the push rod, the transmission mechanism and the loading mechanism.

In another aspect, the utility model further provides a refrigerator comprising the automatic door opening device.

Compared with the prior art, the utility model has the beneficial effects that:

according to the automatic door opening device and the refrigerator, when the door body is closed, the push rod pushes the loading mechanism to load, so that kinetic energy is stored for opening the door at the next time; when the locking assembly is unlocked, the loading mechanism drives the push rod to extend out to jack the door body, and the door body is closed to store kinetic energy for the automatic door opening device.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

FIG. 1 is a schematic perspective view of an automatic door opener according to the present invention;

FIG. 2 is a schematic view of a part of the structure of the automatic door opener according to the present invention;

FIG. 3 is a schematic perspective view of the inner loading mechanism of the automatic door opener of the present invention;

FIG. 4 is a schematic perspective view of the inner slide part of the loading mechanism of the present invention;

FIG. 5 is a schematic perspective view of a bearing plate in the pushing mechanism of the present invention;

FIG. 6 is a schematic perspective view of the inner guide of the loading mechanism of the present invention;

FIG. 7 is a schematic perspective view of a single-door refrigerator according to a preferred embodiment of the present invention;

fig. 8 is a perspective view illustrating a double door refrigerator according to another preferred embodiment of the present invention.

Description of reference numerals:

1. a pushing mechanism;

11. a push rod; 111. a pushing end; 112. a transmission section;

12. a bearing plate; 121. a connecting portion; 1211. positioning the opening; 122. buckling;

2. a transmission mechanism; 21. a bull gear; 22. a pinion gear;

3. a loading mechanism;

31. a locking assembly; 311. an unlocking portion; 312. a locking block;

32. a guide portion;

321. a chute; 3211. a first guide hole; 3212. a second guide hole;

322. a slide rail;

33. a sliding part; 331. a guide groove; 332. positioning blocks; 333. a skirt edge; 334. an installation port; 335. A buffer block; 336. a limiting groove; 337. a rack;

34. an elastomer;

35. a base; 351. and (4) a bump.

[ detailed description ] embodiments

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict. It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1 to 6, the present invention relates to an automatic door opening device, including:

a loading mechanism 3 for storing kinetic energy;

the pushing mechanism 1 comprises a push rod 11 for pushing a door body of the household appliance; and

the transmission mechanism 2 is used for connecting the loading mechanism 3 with the push rod 11 in a transmission way;

when the door body of the household appliance pushes the push rod 11 to retract, the push rod 11 drives the transmission mechanism 2 to drive the loading mechanism 3, so that the elastic body 34 is deformed to be in an extension or compression state and is locked under the action of the locking component 31 to store the kinetic energy of the door body for opening the door;

when the locking assembly 31 is unlocked, the elastic body 34 releases kinetic energy, the loading mechanism 3 drives the transmission mechanism 2 to drive the push rod 11 to extend out, the push rod 11 comprises a pushing end 111, and the pushing end 111 abuts against the door body, so that the push rod 11 pushes the door body open; the transmission mechanism 2 is used as a transfer mechanism of the automatic door opening device, so that the push rod 11 drives the loading mechanism 3 to load through the transmission mechanism 2 or the loading mechanism 3 drives the push rod 11 to extend through the transmission mechanism 2 to push the door body.

Referring to fig. 7, in a preferred embodiment, a refrigerator includes the above automatic door opener, the automatic door opener is disposed at the top of the refrigerator, the push rod 11 abuts against a door body of the refrigerator, when the door body is opened, the push rod 11 extends out, a user enables the door body to contact with the push rod 11 by pushing the door body and continuously pushes the push rod 11 to retract, meanwhile, the push rod 11 drives the transmission mechanism 2 to drive the loading mechanism 3 to realize loading work, kinetic energy is stored for next door opening through previous door closing, compared with electric driving, the door opener in this embodiment works stably and is easy to maintain.

The loading mechanism 3 includes: a lock assembly 31 including an unlocking portion 311 and a locking block 312; a guide portion 32 on which a lock positioning is provided; and a sliding portion 33 provided to slide on the guide portion 32;

wherein, the locking block 312 is arranged on the sliding part 33, the locking block 312 moves along the limited direction of the guiding part 32 along with the sliding part 33, the sliding part 33 and the guiding part 32 move to the locking position through the locking block 312 on the sliding part 33 to form a locking structure, the unlocking part 311 is arranged at the locking position, and the locking block 312 is pushed away from the locking position by the unlocking part 311; an elastic body 34 is arranged between the guide part 32 and the sliding part 33, the elastic body 34 between the guide part 32 and the sliding part 33 is deformed by driving the sliding part 33 so as to store kinetic energy required when the door body is opened, and the locking block 312 is separated from the locking position under the pushing of the unlocking part 311, so that the sliding part 33 and the guide part 32 are unlocked, and the kinetic energy is restored and released through the elastic body 34.

In a preferred embodiment, the sliding portion 33 is provided with a rack 337, the transmission mechanism 2 is a gear, the push rod 11 is provided with a transmission portion 112 engaged with the gear, and the rack 337 is engaged with the gear, so that the sliding portion 33, the gear and the push rod 11 form a transmission structure.

The transmission mechanism 2 comprises a large gear 21 and a small gear 22 driven by the large gear 21, and the gear numbers of the large gear 21 and the small gear 22 are different, so that the speed reduction effect is realized, and the output torque is improved;

wherein, the transmission part 112 is meshed with the small gear 22, and the large gear 21 is meshed with the rack 337; through gear wheel 21 and the cooperation drive of pinion 22, pinion 22's moment of torsion is bigger for push rod 11 motion is more stable, and simultaneously, push rod 11's displacement is little for sliding part 33's displacement, and push rod 11's top thrust is greater than the door body and this body coupling power of household electrical appliances, through the length that has reduced the push rod 11 arm of force, has reduced the moment of the door body to push rod 11 reaction force, has improved push rod 11's life.

Specifically, the large gear 21 and the small gear 22 are concentrically arranged, the large gear 21 and the small gear 22 are integrally formed, the large gear 21 and the small gear 22 are arranged up and down, so that the push rod 11 and the sliding part 33 are arranged in a staggered manner, and the push rod 11 is positioned below the large gear 21; the pushing mechanism 1 further comprises a bearing plate 12, the bearing plate 12 is provided with a push rod 11, a transmission mechanism 2 and a mounting position of the loading mechanism 3, the bearing plate 12 is provided with a connecting portion 121 and a buckle 122, the buckle 122 is arranged on two sides of the push rod 11, the push rod 11 is limited by the buckle 122 in the sliding direction, the connecting portion 121 is of an annular structure, and the loading mechanism 3 is arranged in the connecting portion 121 to limit the position of the loading mechanism 3.

The buckle 122 is arranged at one side of the bearing plate 12, and the buckle 122 is positioned below the large gear 21, so that the width reduction of the whole automatic door opening device is reduced.

In a preferred embodiment, one side of the guiding portion 32 extends outward to form a sliding rail 322, the sliding portion 33 is slidably connected to the sliding rail 322, and the locking assembly 31 is disposed at the moving terminal end of the sliding portion 33;

the push rod 11 drives the sliding portion 33 to move toward the locking assembly 31, so that the elastic body 34 is elastically stretched, and the elastic body 34 is limited to recover by the connection of the locking assembly 31 and the sliding portion 33.

The locking assembly 31 comprises an unlocking part 311 and a locking block 312, the locking block 312 is arranged on the sliding part 33, and a locking position is arranged at the moving terminal end of the sliding rail 322;

the slide portion 33 and the guide portion 32 are moved to the lock position by the lock block 312 on the slide portion 33 to form a lock structure, and the unlocking portion 311 pushes the lock block 312 away from the lock position.

Furthermore, the guide portion 32 is provided with a sliding slot 321 extending along the moving direction of the sliding portion 33, and the locking position is located at the end of the sliding slot 321; the locking block 312 is slidably connected in the sliding slot 321, so that the locking block 312 slides along the track defined by the sliding slot 321, and when the locking block 312 moves to the locking position at the end of the sliding slot 321, the locking block 312 is limited in the locking position.

Specifically, the sliding groove 321 includes a first guide hole 3211 and a second guide hole 3212 extending from one end of the first guide hole 3211 as a locking position;

the second guide hole 3212 extends in a direction inclined with respect to the first guide hole 3211 such that the second guide hole 3212 extends toward the unlocking portion 311, and the first guide hole 3211 and the second guide hole 3212 form an L-shaped sliding groove 321;

an elastic part is arranged between the base surfaces of the locking block 312 and the guide part 32, the locking block 312 is pushed to move into the second guide hole 3212 by the elastic force of the elastic part, when the locking block 312 slides in the first guide hole 3211, the elastic part is in a compressed state, when the locking block 312 moves to the connecting end part of the second guide hole 3212 and the first guide hole 3211, the elastic part rebounds to push the locking block 312 into the second guide hole 3212, because the locking block 312 is pushed into the second guide hole 3212 to cross the inflection point of the L-shaped chute 321, under the action of the tensile force of the elastic body 34 on the locking block 312, the locking block 312 extrudes the inner side wall 3212 of the second guide hole 3212, so that the locking block 312 is difficult to return to the first guide hole 3211.

The sliding part 33 is provided with a guide groove 331, and the locking block 312 is sleeved in the guide groove 331;

the guide groove 331 extends toward the unlocking portion 311, and in a preferred embodiment, the guide groove 331 extends toward the second guide hole 3212, and the lock block 312 moves relative to the sliding portion 33 along the extending direction of the guide groove 331 while the lock block 312 moves along with the sliding portion 33.

Specifically, the unlocking portion 311 is provided at one side of the guide portion 32, and the extending direction of the first guide hole 3211 is parallel to the moving direction of the sliding portion 33.

It should be noted that the specific structure of the locking assembly 31 is not limited to the implementation of the unlocking portion 311 and the locking block 312, and common locking structures, such as locking structures of a lock head and a lock tongue, and an electromagnet locking structure, and a stop lever structure extending into the sliding portion 33 to limit movement, can be implemented to lock the guide portion 32 and the sliding portion 33 to form a limiting structure, and therefore, it should be regarded as other specific embodiments of the present solution.

Meanwhile, in the locking manner of the unlocking portion 311 and the locking block 312 adopted in the above embodiment, the locking process is mainly realized by a mechanical structure, and the unlocking process is realized by simply pushing, so that the control logic is reduced, and the whole working process is more stable, meanwhile, the locking block 312 is used as a pressure-bearing member, and the locking block 312 bears most of the shearing force, and the locking block 312 is used as a detachable structure, so that the maintenance and the replacement are convenient.

In a preferred embodiment, the guiding portion 32 extends along a straight line to form a sliding rail 322, and the bottom of the sliding portion 33 is provided with a limiting groove 336 penetrating through two end faces thereof; the slide rail 322 is coupled to the limiting groove 336, so that the sliding portion 33 is slidably coupled to the slide rail 322, and the sliding portion 33 is driven to slide along the extending direction of the slide rail 322 by an external force, so that the elastic body 34 is deformed.

In a preferred embodiment, the sliding rail further comprises a base 35, the guide part 32 is placed on the base 35, a projection 351 is arranged on the base 35, and the projection 351 is located on two sides of the sliding rail 322; both sides of the sliding portion 33 are extended outwardly to form a skirt 333 which interferes with the projection 351.

Specifically, the skirt 333 is provided with an installation opening 334, one end of the elastic body 34 is fixedly installed at the installation opening 334, and the other end of the elastic body 34 is connected to the guide portion 32, so that the elastic body 34 is located on two sides of the slide rail 322, the acting force of the elastic body 34 on the sliding portion 33 is more stable, and the force is stable during recovery, so that the movement is stable, and meanwhile, the rated kinetic energy required by deformation of the elastic body 34 on one side is reduced by applying force to two sides.

In a preferred embodiment, the elastic body 34 is a tension spring, the elastic body stores kinetic energy by tensile deformation, the unlocking part 311 is arranged at one end of the slide rail 322 far away from the guide part 32, the end of the sliding part 33 near the guide part 32 is provided with a buffer block 335, the sliding part 33 moves towards the guide part 32 during the recovery process, and the buffer block 335 is arranged at one end of the sliding part 33 near the guide part 32 to absorb the impact force in order to reduce the damage caused by the impact.

Specifically, a positioning block 332 is mounted on the other side of the sliding portion 33, on which the buffer block 335 is mounted, when the tension spring is pulled, a positioning opening 1211 is provided on the connecting portion 121, the positioning block 332 extends into the positioning opening 1211, and positioning reinforcing ribs are circumferentially arranged on the positioning block 332 and abut against the inner wall of the positioning opening 1211, so that the position accuracy of the sliding portion 33 is ensured.

Referring to fig. 8, in another preferred embodiment, the utility model further provides a double-door refrigerator, wherein the automatic door opening devices are arranged corresponding to two refrigerator doors, so that the two automatic door opening devices can independently push the doors.

It should be understood that the above-described embodiments are only illustrative of portions of the present application and are not intended to limit the scope of the present application.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

Claims (10)

1. An automatic door opener, characterized by comprising:

a loading mechanism for storing kinetic energy;

the pushing mechanism comprises a push rod for pushing the door body; and

the transmission mechanism is used for connecting the loading mechanism with the push rod in a transmission way;

when the door body pushes the push rod to retract, the push rod drives the transmission mechanism to drive the loading mechanism, so that the elastic body is deformed to be in an extension or compression state and is locked under the action of the locking assembly to store kinetic energy of opening the door body;

when the locking assembly is unlocked, the elastic body releases kinetic energy, the loading mechanism drives the transmission mechanism to drive the push rod to extend out, and therefore the push rod jacks the door body.

2. The automatic door opener according to claim 1, wherein said loading mechanism includes a guide portion and a sliding portion slidably coupled to said guide portion, and said elastic body is disposed on a fixed base surface and the sliding portion of said guide portion.

3. The automatic door opening device according to claim 2, wherein a rack is provided on the sliding portion, the transmission mechanism is a gear, and a transmission portion engaged with the gear is provided on the push rod, and the rack is engaged with the gear, so that the sliding portion, the gear and the push rod form a transmission structure.

4. The automatic door opener of claim 3, wherein said transmission mechanism includes a large gear and a small gear driven by said large gear;

the transmission part is meshed with the small gear, and the large gear is meshed with the rack.

5. The automatic door opener according to claim 2, wherein one side of the guide portion extends outward to form a slide rail, the sliding portion is slidably connected with the slide rail, and the locking assembly is disposed at a moving terminal end of the sliding portion;

the push rod drives the sliding part to move towards the locking component, so that the elastic body is elastically stretched, and the locking component is connected with the sliding part to limit the elastic body to recover.

6. The automatic door opening device according to claim 5, wherein the locking assembly includes an unlocking part and a locking block, the locking block is provided at the sliding part, and a locking position is provided at a moving terminal end of the sliding rail;

the sliding part and the guide part are moved to the locking position through a locking block on the sliding part to form a locking structure, and the unlocking part pushes the locking block away from the locking position.

7. The automatic door opener according to claim 6, wherein the guide portion is formed with a slide groove extending in a moving direction of the slide portion, and the lock position is formed at a tip end of the slide groove;

the locking block is slidably connected in the sliding groove, so that the locking block slides along a track limited by the sliding groove.

8. The automatic door opening device according to claim 7, wherein an elastic portion is provided between the latch block and a base surface of the guide portion, and the latch block is urged to move to the lock position with respect to the slide portion by an elastic force of the elastic portion.

9. The automatic door opener according to any one of claims 1 to 8, wherein said pushing mechanism further comprises a receiving plate, and said receiving plate is provided with mounting positions for said push rod, said transmission mechanism and said loading mechanism.

10. A refrigerator comprising the automatic door opening apparatus as claimed in any one of claims 1 to 9.

Images