CN112302420A

CN112302420A - Power-assisted handle and refrigerator with same

Info

Publication number: CN112302420A
Application number: CN201910699038.5A
Authority: CN
Inventors: 刘志海
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2021-02-02
Anticipated expiration: 2039-07-31
Also published as: EP4006463A1; WO2021017179A1; EP4006463A4; AU2019459146A1; AU2019459146B2; CN112302420B

Abstract

The invention provides a power-assisted handle and a refrigerator, wherein the power-assisted handle comprises: a handle lever provided at a front side of a door body of the refrigerator; a rotating shaft pivoted to the handle bar; the guide groove is arranged in the door body and penetrates through the door body; the push rod is arranged in the guide groove in a penetrating mode, the far end of the push rod is close to the refrigerator body of the refrigerator, and the near end of the push rod is close to the front end of the handle rod; the resistance structure is arranged on one side of the push rod and comprises a first tooth-shaped structure and a second tooth-shaped structure which are meshed with each other, and the first tooth-shaped structure is combined with the push rod; the handle rod rotates along the rotating shaft, the front end of the handle rod pushes against the near end of the push rod, the push rod slides in the guide groove, and the far end of the push rod pushes against the refrigerator body of the refrigerator and drives the first tooth-shaped structure to move relative to the second tooth-shaped structure. The first tooth-shaped structure moves relative to the second tooth-shaped structure to form rotation resistance, so that the comfort degree of opening the door is improved, and the reset noise of the handle rod is reduced.

Description

Power-assisted handle and refrigerator with same

Technical Field

The invention relates to the technical field of household refrigeration appliances, in particular to a handle for a refrigerator and the refrigerator.

Background

In the present life, refrigerators are more and more widely used, and almost become household appliances which are necessary for families. A refrigerator is a device that stores various foods fresh for a certain period of time in a refrigerated state or a frozen state.

Along with the improvement of the technology, the functions of the refrigerator are more and more abundant, the size of the refrigerator is also more and more large, the door body of the refrigerator is enlarged, the door body is opened through a handle on the door body of the refrigerator, large force is often needed, and therefore the use comfort of a customer is poor. On this basis, develop the helping hand handle that sets up on the refrigerator door body, the helping hand handle makes the door body of refrigerator open laborsavingly, improves customer's use comfort. At present, the used power-assisted handle has the following defects: 1) the power-assisted handle is arranged on the side surface of the side edge of the door body, and the door body needs to be narrower than the width of the refrigerator body, so that the appearance of the refrigerator is influenced; 2) the handle is arranged in front of the door body, and the door body needs to be perforated, so that the problems of cold leakage and frost formation can be caused.

Disclosure of Invention

The invention provides a power-assisted handle suitable for a refrigerator, which does not affect the appearance of the refrigerator and can provide better use comfort.

The invention provides a power-assisted handle, which is arranged on the front side of a door body of a refrigerator, and is characterized in that the power-assisted handle comprises:

a handle bar provided on a front side of the door body;

a rotating shaft pivoted with the handle bar;

the guide groove is arranged in the door body and penetrates through the door body;

the push rod is arranged in the guide groove in a penetrating mode, the far end of the push rod is close to the refrigerator body of the refrigerator, and the near end of the push rod is close to the front end of the handle rod; and

the resistance structure is arranged on one side of the push rod and comprises a first tooth-shaped structure and a second tooth-shaped structure which are meshed with each other, and the first tooth-shaped structure is combined with the push rod;

the handle rod rotates along the rotating shaft, the front end of the handle rod pushes against the near end of the push rod, the push rod slides in the guide groove, the far end of the push rod pushes against the refrigerator body of the refrigerator, and the push rod drives the first tooth-shaped structure to move relative to the second tooth-shaped structure.

As an optional technical solution, one of the first tooth structure and the second tooth structure is a gear, and the other of the first tooth structure and the second tooth structure is a rack.

As an optional technical scheme, the resistance structure is arranged on the front side of the door body.

As an optional technical solution, the liquid crystal display device further includes an elastic member disposed in the push rod for providing an elastic force for resetting the push rod, wherein the push rod includes a first rod body and a second rod body, the elastic member is disposed between the first rod body and the second rod body, and two ends of the elastic member are respectively connected to the first rod body and the second rod body.

As an alternative solution, the elastic member is a spring.

As an optional technical solution, the handle bar includes a handle portion and a lever portion, the handle portion and the lever portion are disposed at two sides of the rotating shaft, wherein the length of the handle portion is greater than the length of the lever portion, and the handle portion is pulled to enable the handle bar to integrally rotate along the rotating shaft, the lever portion pushes the first bar body, the first bar body compresses the elastic member, and the elastic member pushes the second bar body to slide, so as to push the refrigerator body, and further open the door body.

As an optional technical solution, the door further includes a base fastened to the front side of the door body, and the elastic member, the first rod, the lever portion and the resistance structure are respectively accommodated in the base.

As an optional technical solution, the base is a box body with an opening at one end, and the opening of the box body is attached to the front side of the door body.

As an optional technical solution, the push rod assembly further comprises a guide sleeve and a corrugated pipe, wherein the guide sleeve is arranged in the guide groove and sleeved on the push rod, and the corrugated pipe is arranged between the guide sleeve and the push rod.

The invention also provides a refrigerator, which comprises a door body, a refrigerator body and the power-assisted handle, and is characterized in that the power-assisted handle is arranged on the front side of the door body, and is the power-assisted handle.

Compared with the prior art, the power-assisted handle and the refrigerator have the advantages that the power-assisted handle comprises a resistance structure, and the resistance structure moves along with the movement of the push rod and generates rotation resistance; when a user pulls the handle rod to open the door body, the rotating resistance improves the comfort level of opening the door; when the handle bar resets, the rotation resistance reduces the noise that the handle bar resets.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

Fig. 1 is a sectional view of a refrigerator having a handle for assisting power according to the present invention.

Fig. 2 is an enlarged schematic view of the region a in fig. 1.

Fig. 3 is a top view of the refrigerator with the assist grip installed according to the present invention with the top structure removed.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

FIG. 1 is a sectional view of a refrigerator having a booster handle according to the present invention; FIG. 2 is an enlarged schematic view of region A of FIG. 1; fig. 3 is a top view of the refrigerator with the assist grip installed according to the present invention with the top structure removed.

As shown in fig. 1 to 3, the refrigerator 100 includes a door 101 and a cabinet 102, the door 101 is pivoted to a side of the cabinet 102, and the door 101 pivots relative to the cabinet 102 to close the door 101 on the cabinet 102, or the door 101 opens relative to the cabinet 102. The housing 102 includes a plurality of compartments for storing various articles.

The front side of the door body 101 is provided with a power-assisted handle, the power-assisted handle comprises a handle rod, a rotating shaft 20, a guide groove 90, a push rod 50 and a resistance structure 60, wherein the handle rod is pivoted with the rotating shaft 20, the guide groove 90 penetrates through the door body 101, the push rod 50 is slidably arranged in the guide groove 90, and the resistance structure 60 is positioned on one side of the push rod 50; when the handle bar pivots along the rotating shaft 20 and pushes against the proximal end of the push rod 50 to slide in the guide groove 90, the distal end of the push rod 50 pushes against the box 102 to open the door 101, wherein the resistance structure 60 includes a first tooth-shaped structure 61 and a second tooth-shaped structure 62 which are engaged with each other, the first tooth-shaped structure 61 is combined with one side of the push rod 50 and can move together with the push rod 50, so that the first tooth-shaped structure 61 moves relative to the second tooth-shaped structure 62 to form a certain rotational resistance, and the rotational resistance is used for improving the comfort level of a user pulling the handle bar to open the door and reducing the noise of the handle bar resetting.

In the invention, one side of the door body 101 close to a user is defined as a front side, and the other side far away from the user is defined as a rear side; the end of the push rod 50 close to the user is defined as a proximal end, and the other end far from the user is defined as a distal end.

As shown in fig. 1 and 2, the handle lever is provided on the front side of the door body 101 and is pivoted to the pivot shaft 20 so that the handle lever can pivot about the pivot shaft 20. The handle bar comprises a handle portion 10 and a lever portion 11 which are integrally formed, the handle portion 10 and the lever portion 11 are respectively located at two sides of the rotation shaft 20, in other words, a rotation shaft hole (not shown) arranged on the handle bar divides the handle bar into the handle portion 10 and the lever portion 11, the rotation shaft 20 is combined in the rotation shaft hole, wherein the length of the handle portion 10 is greater than that of the lever portion 11. When a user pulls the handle part 10 to rotate the handle rod, the handle part 10 has a large force arm, so that the user can rotate the handle rod with small force, and the labor-saving effect is achieved. The top of the lever portion 11 has a projection 12, and the projection 12 abuts against the front end of the push rod 50.

In this embodiment, the rotating shaft 20 is fixed to, for example, the base 30 on the front side of the door 101, the base 30 is a box with one open end, and the opening of the box is combined with the front surface of the door 101, but the invention is not limited thereto. In other embodiments of the present invention, the rotating shaft is disposed at a connection portion of the handle portion and the lever portion on the handle lever, the base is provided with a rotating shaft hole corresponding to the rotating shaft on the handle lever, and the rotating shaft on the handle lever is inserted into the rotating shaft hole, so that the handle lever pivots around the rotating shaft.

The base 30 covers the lever portion 11 of the assist grip, the shaft 20, a portion of the push rod 50, and the elastic member 40 therein, so that the refrigerator 100 has a good appearance.

As shown in fig. 2, the push rod 50 includes a first rod 51 and a second rod 52, the first rod 51 and the second rod 52 are connected through an elastic member 40, the elastic member 40 is, for example, a spring, one end of the spring is sleeved on a convex pillar on the first rod 51, the other end of the spring is sleeved on another convex pillar on the second rod 52, and the convex pillar on the first rod 51 is opposite to the other convex pillar on the second rod 52. In other embodiments of the present invention, the elastic element may also be a metal elastic sheet, the metal elastic sheet is disposed between the first rod and the second rod, and two ends of the metal elastic sheet are respectively welded or adhered to the surface of the first rod and the other surface of the second rod, the surfaces being opposite to the other surface.

Wherein the elastic member 40 provides an elastic force for restoring the handle bar. Specifically, the user applies a force to pull the handle portion 10, so that the handle portion 10 and the lever portion 11 rotate counterclockwise along the rotation axis 20, the protrusion 12 of the lever portion 11 pushes against the front end of the first rod 51, the first rod 51 compresses the elastic member 40, the elastic member 40 acts on the front end of the second rod 52, so that the second rod 52 moves in the guide groove 90, the distal end of the second rod 52 extends out of the opening at the distal end of the guide groove 90 and pushes against the box 102, and the door 101 is opened relative to the box 102. In the process that the door 101 is opened, the elastic member 40 is compressed and is in a compressed state, after the door 101 is opened, the distal end of the second rod 52 abuts against the box 102, the user does not apply an acting force on the handle portion 10 any more, and then the acting force applied to the elastic member 40 is removed, at this time, the elastic member 40 in the compressed state is restored to the extended state to generate an elastic force, the elastic force acts on the first rod 51, the first rod 51 pushes the convex portion 12 of the lever 11 to move towards the user, the lever 11 rotates clockwise along the rotating shaft 20, the handle portion 10 rotates clockwise together, and the handle portion 10 is reset.

In addition, the door 101 is closed on the box 102, the box 102 pushes against the distal end of the second rod 52, and the second rod 52 compresses the elastic element 40, so that the portion of the second rod 52 extending out of the guide slot 90 retracts into the guide slot 90.

In this embodiment, the first rod 51 and the elastic element 40 are located at the front side of the door 101, and the second rod 52 is located in the guide groove 90, but not limited thereto. In other embodiments of the present invention, the first rod, the elastic member and the second rod may be disposed in the guide groove at the same time.

With continued reference to fig. 1 and 2, to improve the comfort of the handle, the handle further includes a resistance structure 60 disposed on one side of the push rod 50 for providing resistance. The resistance structure 60 includes a first tooth-shaped structure 61 and a second tooth-shaped structure 62 engaged with each other, the first tooth-shaped structure 61 is disposed on one side of the first rod 51, is fixedly connected with the first rod 51, and can move along with the movement of the first rod 51; the second tooth structure 62 is located below the first tooth structure 61. In this embodiment, the first tooth-like structure 61 is, for example, a rack, the second tooth-like structure 62 is, for example, a gear, the gear is engaged with the rack, and the gear is engaged with a distal end of the rack, wherein when the first rod 51 moves toward the rear side of the door 101, the rack moves toward the rear side of the door 101 along with the first rod 51, and the gear rotates counterclockwise to gradually engage with a proximal end of the rack; when the first rod 51 moves toward the front side of the door body 101 by the elastic member 40, the rack gear moves toward the front side of the door body 101 along with the first rod 51, and the gear rotates clockwise to gradually engage with the distal end of the rack gear.

Because the first rod body 51 can reciprocate by the rotation of the lever part 11 and the elastic force provided by the elastic part 40, and then the rack reciprocates along with the first rod body 51, in the process of reciprocating the rack, the gear rotates clockwise or counterclockwise on the surface of the rack, and the rotation of the gear provides proper rotation resistance, on one hand, in the process of pulling the handle part 10 to open the door body 101, the rotation resistance reduces the movement rate of the first rod body 51 of the push rod 50, so that the second rod body 52 slowly moves along the guide groove 90 to gradually push against the box body 102, and the door body 101 is gradually opened to improve the door opening comfort of a user; on the other hand, after the door body 101 is opened, the first rod 51 moves towards the front side of the door body 101 under the action of the elastic member 40, and the rotation resistance can slow down the moving speed of the first rod 51, so that the lever part 11 is slowly pivoted and reset, and further the handle part 10 cannot impact the front side of the door body 101, and the noise of resetting the handle is reduced.

In this embodiment, the first tooth structure 61 and the second tooth structure 62 are disposed at the front side of the door body 101, and the first tooth structure 61 is combined with the first rod 51 and moves along with the movement of the first rod 51, but not limited thereto. In other embodiments of the present invention, the first tooth structure and the second tooth structure may be disposed inside the door body, and the first tooth structure is combined with the second rod.

With continued reference to fig. 1 and 2, in order to avoid the problem of air leakage and frost formation of the guide groove 90 on the door body 101, the guide groove 90 is provided with a guide sleeve 70 and a pair of bellows 80, wherein the guide sleeve 70 is accommodated in the guide groove 90, and the second rod 52 is inserted into the guide sleeve 70; the pair of bellows 80 are located at the openings at the two ends of the guide groove 90, the outer sides of the pair of bellows 80 are respectively connected to the inner walls at the two ends of the guide sleeve 70, and the inner sides of the pair of bellows 80 are respectively sleeved on the outer surface of the proximal end and the outer surface of the distal end of the second rod 52, that is, the pair of bellows 80 can be respectively filled between the end of the second rod 52 and the end of the guide sleeve 70, so that the space between the pair of bellows 80 is a sealed space, and the sealed space can play a role in heat preservation and heat insulation.

In addition, the bellows 80 close to the rear side of the door 101 is filled in the distal end of the guide sleeve 70 and the distal end of the second rod 52, and when the door 101 is closed on the box 102, the bellows can prevent the cold air in the box 102 from overflowing from the guide groove 90 of the door 101, thereby avoiding the problem of frosting at the power-assisted handle of the door.

In addition, the door body 101 includes a first shell, a heat insulating layer and a second shell, the heat insulating layer is disposed between the first shell and the second shell, the guide groove 90 sequentially penetrates through the first shell, the heat insulating layer and the second shell, wherein the guide sleeve 70 is filled in the guide groove 90, the proximal end of the guide sleeve 70 is connected to the first shell, and the distal end of the guide sleeve 70 is connected to the second shell.

The invention further provides a refrigerator 100, which comprises a door body 101 and a refrigerator body 102, wherein the door body 101 can be opened or closed relative to the refrigerator body 102, the front side of the door body 101 is provided with the power-assisted handle, and the power-assisted handle is the power-assisted handle.

In conclusion, the power-assisted handle and the refrigerator provided by the invention have the advantages that the power-assisted handle comprises a resistance structure, and the resistance structure moves along with the movement of the push rod and generates rotation resistance; when a user pulls the handle rod to open the door body, the rotating resistance improves the comfort level of opening the door; when the handle bar resets, the rotation resistance reduces the noise that the handle bar resets.

The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A power handle is mounted on the front side of a door body of a refrigerator, and is characterized by comprising:

a handle bar provided on a front side of the door body;

a rotating shaft pivoted with the handle bar;

2. The assist grip of claim 1 wherein one of the first and second tooth structures is a gear and the other of the first and second tooth structures is a rack.

3. A power assist handle as set forth in claim 2 wherein the resistance structure is disposed on a front side of the door body.

4. The handle as claimed in claim 1, further comprising a resilient member disposed in the push rod for providing a resilient force for restoring the push rod, wherein the push rod comprises a first rod and a second rod, the resilient member is disposed between the first rod and the second rod, and two ends of the resilient member are respectively connected to the first rod and the second rod.

5. The booster handle of claim 4 wherein the resilient member is a spring.

6. The handle as claimed in claim 4, wherein the handle bar comprises a handle portion and a lever portion, the handle portion and the lever portion are disposed at two sides of the rotation shaft, wherein the handle portion has a length greater than that of the lever portion, and pulling the handle portion rotates the handle bar integrally along the rotation shaft, the lever portion pushes the first bar, the first bar compresses the elastic member, and the elastic member pushes the second bar to slide, so as to push against the refrigerator body and open the door.

7. The assist grip of claim 6 further comprising a base fastened to the front side of the door, wherein the resilient member, the first shaft, the lever portion and the resistance structure are respectively received in the base.

8. The resistance handle of claim 1, wherein the base is a box with an open end, the open end of the box being attached to the front side of the door.

9. The power assist grip as claimed in claim 1, further comprising a guide sleeve and a bellows, wherein the guide sleeve is disposed in the guide groove and sleeved on the push rod, and the bellows is disposed between the guide sleeve and the push rod.

10. A refrigerator, comprising a door body, a refrigerator body and a power-assisted handle, wherein the power-assisted handle is arranged on the front side of the door body, and the power-assisted handle is as claimed in any one of claims 1 to 9.