CN220769209U

CN220769209U - Power-assisted handle, door body structure and refrigeration equipment

Info

Publication number: CN220769209U
Application number: CN202322270459.0U
Authority: CN
Inventors: 赵璞; 王凯
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd
Priority date: 2023-08-23
Filing date: 2023-08-23
Publication date: 2024-04-12
Anticipated expiration: 2033-08-23

Abstract

The application relates to the technical field of refrigeration devices and discloses a power-assisted handle, a door body structure and refrigeration equipment. The power assisted handle includes: a base; the sliding piece is connected with the base in a sliding way; the rotating assembly is rotationally connected with the base and comprises a power assisting end, part of the power assisting end is arranged in a protruding mode along the rotating axis of the rotating assembly, and the power assisting end is movably connected with the sliding piece; the driving piece is connected with the rotating assembly and is used for driving the rotating assembly to rotate relative to the base; during the rotation process of the rotating assembly relative to the base, the sliding piece and the power assisting end slide relatively to drive the sliding piece to extend or retract relative to the base. When exerting effort to the driving piece, the effort that the slider produced is directly proportional with the biggest rotation angle of rotating assembly, and consequently the effort that produces when the slider slides is greater than exerting effort to the driving piece, and then realizes conveniently opening the door body through helping hand handle, has reduced the user and has need the power that applys to helping hand handle when opening the door.

Description

Power-assisted handle, door body structure and refrigeration equipment

Technical Field

The application relates to the technical field of refrigeration devices, for example to a power-assisted handle, a door body structure and refrigeration equipment.

Background

At present, a refrigerating apparatus (e.g., a refrigerator or a standing freezer) is a household appliance commonly used in people's daily life. A handle is generally fixed to a door body of the refrigeration apparatus, so that a user can conveniently pull the handle by hand to open the door body. After the door body of the refrigeration equipment is closed, the pressure is reduced due to the fact that the refrigeration temperature in the refrigeration equipment is reduced, the pressure difference is formed in the door body, a user directly pulls a handle on the door body to open the door, the door body of the refrigeration equipment is inconvenient to open, and user experience is affected.

In the related art, in order to enable a user to conveniently open the door body, the lever principle is applied to the design of the power-assisted handle to achieve the purpose of door opening and labor saving. When the user pulls the power-assisted handle, the push rod can be driven to slide on the base, at the moment, the other end part of the push rod is propped against the refrigeration equipment, and the door body is locally stressed by a large force according to the lever principle, so that the user can conveniently open the door body through the power-assisted handle.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the external appearance is limited, the power-assisted handle can not be made very long, the ratio of the acting force applied by a user when pulling the power-assisted handle to the acting force applied by the pushing rod when sliding is basically within 1:3, and the acting force applied by the user when pulling the power-assisted handle to open the door body is practically not very different from the acting force applied by the door body due to the existence of friction resistance, so that the door opening of the user is difficult.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a power-assisted handle, a door body structure and refrigeration equipment, which are used for solving the problem of difficulty in opening a door of a user in the related art.

In some embodiments, there is provided a booster grip, comprising: a base; the sliding piece is connected with the base in a sliding way; the rotating assembly is rotationally connected with the base and comprises a power assisting end, part of the power assisting end is arranged in a protruding mode along the rotating axis of the rotating assembly, and the power assisting end is movably connected with the sliding piece; the driving piece is connected with the rotating assembly and is used for driving the rotating assembly to rotate relative to the base; during the rotation process of the rotating assembly relative to the base, the sliding piece and the power assisting end slide relatively to drive the sliding piece to extend or retract relative to the base.

Optionally, the booster end includes: a smoothing section; the extension part is arranged in a protruding manner along the rotation axis direction of the rotation assembly, and compared with the smooth part, the sliding part is matched with the smooth part and the extension part to slide in sequence in the process that the sliding part and the power assisting end slide relatively; wherein the slider protrudes relative to the base in a case where the slider slides in cooperation with the extension.

Optionally, the rotating assembly further comprises: the rotating shaft is connected with the base; the rotating piece is rotationally connected with the rotating shaft; the driving piece can drive the rotating piece to rotate around the rotating shaft.

Optionally, the driving member comprises a recess.

Optionally, the rotating assembly further includes a protruding portion, the protruding portion and the power assisting end are located at opposite ends of the rotating member, and the protruding portion is inserted into the recessed portion.

Optionally, the base comprises: the sliding rail is in sliding connection with the sliding piece, and the sliding piece slides along the sliding rail.

Optionally, the slider includes: the connecting body is movably connected with the power assisting end; the sliding body is connected with the connecting body and is in sliding connection with the sliding rail.

Optionally, the booster handle further includes: the limiting block is arranged on the base and used for limiting the rotation angle of the rotating assembly.

Optionally, the booster handle further includes: and one end of the reset spring is connected with the driving piece, and the other end of the reset spring is connected with the base and is used for resetting the driving piece.

In some embodiments, a door body structure is provided, comprising: a door body; and the booster handle according to any one of the above embodiments, wherein the booster handle is provided to the door body, and the slider is capable of being extended or retracted with respect to the door body.

In some embodiments, there is provided a refrigeration apparatus comprising: a case; and the door body structure is hinged with the box body, and the sliding piece extends out relative to the door body so as to enable the sliding piece to be abutted with the box body.

The booster grip, door body structure and refrigeration plant that this disclosed embodiment provided can realize following technical effect:

the power assist handle that this disclosed embodiment provided includes: base, slider, rotation subassembly and driving piece. The sliding piece is connected with the base in a sliding way. The rotating assembly is rotationally connected with the base and comprises a power assisting end, part of the power assisting end is arranged in a protruding mode along the rotating axis of the rotating assembly, and the power assisting end is movably connected with the sliding piece. The driving piece is connected with the rotating assembly and is used for driving the rotating assembly to rotate relative to the base. During the rotation process of the rotating assembly relative to the base, the sliding piece and the power assisting end slide relatively to drive the sliding piece to extend or retract relative to the base.

According to the power-assisted handle provided by the embodiment of the disclosure, as the driving piece is connected with the rotating assembly, the power-assisted end is movably connected with the sliding piece, and part of the power-assisted end is arranged along the rotating axis of the rotating assembly in a protruding manner, the rotating assembly can be driven to rotate relative to the base by applying acting force to the driving piece, so that the sliding piece and the power-assisted end can slide relatively to drive the sliding piece to extend or retract relative to the base. When exerting effort to the driving piece, the effort that the slider produced is directly proportional with the biggest rotation angle of rotating assembly, and consequently the effort that produces when the slider slides is greater than exerting effort to the driving piece, realizes conveniently opening the door body through helping hand handle, has reduced the user and has need the power that applys to helping hand handle when opening the door.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

FIG. 1 is a schematic view of a power assist handle provided in an embodiment of the present disclosure;

FIG. 2 is a schematic view of another angle of the assist handle provided by the embodiment of FIG. 1;

FIG. 3 is a cross-sectional view in the A-A direction of the assist grip provided by the embodiment of FIG. 1;

FIG. 4 is a schematic view of the rotary assembly provided by the embodiment of FIG. 1;

FIG. 5 is a schematic view of the structure of the rotor provided by the embodiment of FIG. 1;

FIG. 6 is a schematic view of another angle of the rotary member provided by the embodiment of FIG. 5;

FIG. 7 is a schematic view of the slider provided by the embodiment of FIG. 1;

fig. 8 is a schematic structural view of a door structure according to an embodiment of the present disclosure;

fig. 9 is a side view of the door structure provided by the embodiment of fig. 8.

Reference numerals:

100 booster handles;

110 driving member; 112 depressions;

120 a rotating assembly; 122 a rotating member; 123 boss; 124 a boost end; 125 smoothing part; 126 extensions; 127 spindle; 128 rotating shaft holes;

130 a slider; 132 connectors; 134 a slider;

140 bases;

150 door body structure; 152 door body.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

In some embodiments, a booster grip 100 is provided, comprising: a base 140, a slider 130, a rotating assembly 120, and a driver 110. The slider 130 is slidably coupled to the base 140. The rotating assembly 120 is rotatably connected with the base 140, the rotating assembly 120 comprises a power assisting end 124, a part of the power assisting end 124 is arranged in a protruding mode along the rotating axis of the rotating assembly 120, and the power assisting end 124 is movably connected with the sliding piece 130. The driving member 110 is connected to the rotating assembly 120, and the driving member 110 is used for driving the rotating assembly 120 to rotate relative to the base 140. During the rotation of the rotating assembly 120 relative to the base 140, the sliding member 130 slides relative to the power assisting end 124 to drive the sliding member 130 to extend or retract relative to the base 140.

In the assist handle 100 provided in the embodiments of the present disclosure, since the driving member 110 is connected to the rotating assembly 120, the assist end 124 is movably connected to the sliding member 130, and a portion of the assist end 124 is disposed along the rotation axis of the rotating assembly 120 in a protruding manner, the rotating assembly 120 can be driven to rotate relative to the base 140 by applying a force to the driving member 110, so that the sliding member 130 and the assist end 124 slide relatively, so as to drive the sliding member 130 to extend or retract relative to the base 140. When the force is applied to the driving member 110, the force generated by the sliding member 130 is proportional to the maximum rotation angle of the rotation assembly 120, so that the force generated when the sliding member 130 slides is greater than the force applied to the driving member 110, the door 152 is conveniently opened by the power-assisted handle 100, and the force required to be applied by a user during door opening is reduced.

In the related art, after a user pulls the power-assisted handle, the push rod can be driven to slide on the base, at the moment, the other end part of the push rod is propped against the refrigeration equipment, and the door body is locally stressed by a large force according to the lever principle, so that the user can conveniently open the door body through the power-assisted handle.

By employing the rotating assembly 120 provided by the present disclosure, a user needs to apply a force to the driving member 110 to drive the rotating assembly 120 to rotate relative to the base 140 when opening the door 152 by the assist grip 100. Because the force generated by the sliding member 130 is proportional to the maximum rotation angle of the rotation assembly 120, the force generated when the sliding member 130 slides is greater than the force applied by the user to the driving member 110, and the door 152 can be opened without applying a great force to the driving member 110, so as to achieve the purpose of saving labor for opening the door.

The effective radius of the force F applied to the driving member 110 by the user is R, the maximum rotation angle of the rotating member 120 is θ (radian system), the maximum extending stroke of the sliding member 130 relative to the base 140 is S, and the force generated when the sliding member 130 slides is F ₀ . F and F are easily derived from the structure of assist grip 100, ignoring other drag forces ₀ The relation is:

F:F ₀ ＝S:R×θ。

illustratively, the maximum travel S is 1cm, the effective radius R is 5cm, and the maximum rotation angle θ is pi/2 rad, i.e., 90, at which time F and F ₀ The ratio of (2) is about 1:7.85.

optionally, the booster end 124 includes: smooth portion 125 and extended portion 126. The extension portion 126 is disposed along the rotation axis direction of the rotation assembly 120, and compared to the protrusion of the smooth portion 125, the sliding portion 130 is sequentially matched with the smooth portion 125 and the extension portion 126 to slide during the relative sliding process of the sliding portion 130 and the power-assisted end 124. Wherein the slider 130 protrudes with respect to the base 140 in a case where the slider 130 is slid in cooperation with the extension 126.

In this embodiment, the extending portion 126 is disposed to protrude from the smooth portion 125 along the rotation axis direction of the rotation assembly 120, so that the sliding member 130 sequentially slides in cooperation with the smooth portion 125 and the extending portion 126 during the sliding of the sliding member 130 and the assistance end 124, and the sliding member 130 can be extended out relative to the base 140 when the sliding member 130 slides in cooperation with the extending portion 126.

Optionally, the rotating assembly 120 further includes: a rotation shaft 127 and a rotation member 122. The rotation shaft 127 is connected to the base 140. The rotating member 122 is rotatably coupled to the rotating shaft 127. Wherein the driving member 110 can drive the rotating member 122 to rotate around the rotating shaft 127.

In this embodiment, the rotating member 122 is rotatably coupled to the base 140 by providing the rotating shaft 127 to be coupled to the rotating shaft 127 such that the rotating assembly 120 is mounted to the base 140 and the driving member 110 can drive the rotating member 122 to rotate about the rotating shaft 127 when a user applies a force to the driving member 110.

Optionally, the rotating member 122 is provided with a rotating shaft hole 128. The rotation shaft hole 128 is rotatably connected to the rotation shaft 127.

In this embodiment, the rotating member 122 is quickly positioned by providing a rotating shaft hole 128 in the rotating member 122 to be connected to the rotating shaft 127 so that the rotating member 122 is positioned at the correct position. And, the connection mode between the rotating shaft hole 128 and the rotating shaft 127 can enable the rotating member 122 to be rotationally connected with the rotating shaft 127, so that the rotating member 122 rotates around the rotating shaft 127. By inserting the rotation shaft 127 into the rotation shaft hole 128 of the rotation member 122, the rotation member 122 can be firmly fixed at a desired position, preventing the rotation member 122 from being rotated by force to be displaced during use of the assist grip 100.

Optionally, the driver 110 includes a recess 112. The rotating assembly 120 further includes a boss 123. The protruding portion 123 and the assisting end 124 are located at opposite ends of the rotating member 122, and the protruding portion 123 is inserted into the recess 112.

In this embodiment, the recess 112 is located on the driving member 110, and the projection 123 and the assistance end 124 are located on opposite ends of the rotating member 122. Through the transmission design of inserting the protruding portion 123 into the recessed portion 112, when a user applies a force to the driving member 110, the driving member 110 can drive the rotating assembly 120 to rotate relative to the base 140, so that the sliding member 130 slides relative to the power assisting end 124, and the sliding member 130 is driven to extend relative to the base 140. The transmission structure between the driving piece 110 and the rotating assembly 120 is simple, easy to realize, high in transmission reliability, and easy to assemble between the driving piece 110 and the rotating assembly 120, and can be assembled only by inserting the protruding part 123 into the recessed part 112, so that the assembly efficiency of the power-assisted handle 100 is improved.

Optionally, the base 140 includes: the sliding rail is in sliding connection with the sliding piece 130, and the sliding piece 130 slides along the sliding rail.

In this embodiment, the sliding rail is slidably connected to the sliding member 130 by providing a sliding rail on the base 140, so that the sliding member 130 can slide along the sliding rail. The sliding rail plays a role in positioning the sliding member 130, so as to prevent the sliding direction of the sliding member 130 from being shifted when the rotating assembly 120 drives the sliding member 130 to slide.

Optionally, the slider 130 includes: the connecting body 132 is movably connected with the power assisting end 124; the sliding body 134 is connected with the connecting body 132, and the sliding body 134 is connected with the sliding rail in a sliding way.

In this embodiment, the slider 134 is slidably coupled to the slide rail such that the slider 134 can slide along the slide rail. The connecting body 132 is arranged to limit the maximum travel of the sliding piece 130 sliding along the sliding rail. In the process of driving the sliding member 130 to slide by the rotating assembly 120, after the sliding member 130 reaches the maximum stroke, the connecting body 132 abuts against the base 140, so that the sliding member 130 cannot be separated from the sliding rail, and further reliability of the power-assisted handle 100 in use is improved.

Alternatively, the slider 130 is a unitary structure.

In this embodiment, the sliding member 130 of the integrated structure has high strength and can withstand large force without being damaged easily. By providing the sliding member 130 as an integral structure, the sliding member 130 is prevented from being damaged due to excessive force during the sliding process of the sliding member 130 driven by the rotating assembly 120.

Optionally, the assist grip 100 further includes: and a limiting block. The limiting block is disposed on the base 140, and the limiting block is used for limiting the rotation angle of the rotation assembly 120.

In this embodiment, the limiting block disposed on the base 140 is used to limit the rotation angle of the rotation assembly 120, so as to improve the connection reliability between the rotation assembly 120 and the sliding member 130. When the user uses the assist handle 100, the limiting block is connected with the extension portion 126 when the rotating assembly 120 rotates to a certain angle, and at this time, the rotating assembly 120 will not rotate even if the user applies an acting force to the driving member 110 due to the limiting effect of the limiting block on the rotating assembly 120. The setting of the limiting block can prevent the rotating assembly 120 from exceeding the effective rotating range, and further prevent the rotating assembly 120 from being excessively large in rotating angle, so that dislocation occurs between the sliding piece 130 and the rotating assembly 120.

Optionally, the assist grip 100 further includes: and a return spring. One end of the return spring is connected to the driving member 110, and the other end is connected to the base 140, for returning the driving member 110.

In this embodiment, the return spring disposed between the driving member 110 and the base 140 allows the user to return the driving member 110 to drive the rotating assembly 120 and the sliding member 130 to return after using the assist grip 100. Specifically, when the user applies a force to the driving member 110, the rotating member 120 rotates under the driving of the driving member 110, at this time, the return spring is compressed, the sliding member 130 moves along the sliding rail under the driving of the rotating member 120, and the sliding member 130 extends out relative to the base 140. When the user no longer applies force to the driving member 110, the return spring rebounds to push the driving member 110 to move reversely, and the rotating assembly 120 is driven by the driving member 110 to rotate reversely, so that the sliding member 130 moves along the sliding rail in a direction away from the base 140, and the sliding member 130 is retracted relative to the base 140.

Optionally, the driver 110 comprises a handle. The handle is coupled to the rotating assembly 120, and the rotating handle drives the rotating assembly 120 to rotate relative to the base 140.

In this embodiment, a handle is connected to the rotating assembly 120, and the user can rotate the assembly relative to the base 140 by rotating the handle to slide the sliding member 130 relative to the power assisting end 124, so as to drive the sliding member 130 to slide along the sliding rail, and extend relative to the base 140.

In some embodiments, a door structure 150 is provided, comprising: door 152 and assist handle 100 as described in any of the embodiments above. The assist grip 100 is provided to the door 152, and the slider 130 can be extended or retracted with respect to the door 152.

The door body structure 150 provided in the embodiments of the present disclosure has all the beneficial effects of any one of the above embodiments, and will not be described herein again.

Optionally, the door structure 150 further includes: and a connecting piece. The connector is disposed through the base 140 and the door 152 to mount the assist grip 100 on the door 152.

In this embodiment, the assist grip 100 is located on the door body 152, and the assist grip 100 is fixedly coupled to the door body 152 by a coupling. The connector is disposed through the base 140 and the door 152 to mount the assist grip 100 on the door 152.

Further, the fixing member is a plurality of screws.

In this embodiment, screws are used as the connecting members to increase the strength of the connection between the assist grip 100 and the door 152, so that the assist grip 100 does not loosen or fall off the door 152 due to excessive force applied thereto by the user. In addition, the plurality of screws can provide better strength and stability between the power-assisted handle 100 and the door 152, and the plurality of screws can uniformly share the load, so that the acting force born by a single screw is reduced, and the reliability of the connection between the power-assisted handle 100 and the door 152 is improved. When one of the screws is damaged or requires maintenance, the other screws may still provide sufficient strength of connection between the assist grip 100 and the door 152 to enable proper use of the assist grip 100.

In some embodiments, there is provided a refrigeration apparatus comprising: the case and the door structure 150 described in the above embodiments. The door structure 150 is hinged to the case, and the slider 130 protrudes with respect to the door 152 so that the slider 130 abuts the case.

In this embodiment, by providing the door structure 150 to be hinged to the case, the user rotates the handle to drive the rotation assembly 120 to rotate relative to the base 140 during the door opening process. During the rotation of the rotating assembly 120 relative to the base 140, the sliding member 130 slides relative to the power assisting end 124, so as to drive the sliding member 130 to extend relative to the door 152 until the sliding member abuts against the box, thereby providing power for opening the door and realizing easy opening of the door.

Optionally, the refrigeration device comprises a refrigerator or a fresh food cabinet.

In this embodiment, after the door 152 of the refrigerator or fresh-keeping cabinet is closed, the pressure is reduced due to the reduction of the refrigerating temperature in the cabinet, and a pressure difference is formed between the inside and the outside of the door 152. In this case, the booster grip 100 is installed on the door 152 of the refrigerator or the safe to assist in opening the door so that the user can open the door 152 without a great force. In the process of opening the door, a user rotates the handle, the rotating assembly 120 rotates relative to the base 140 under the drive of the handle, the sliding member 130 slides relative to the power assisting end 124 in the process of rotating the rotating assembly 120 relative to the base 140, and the sliding member 130 slides in sequence in cooperation with the smooth portion 125 and the extending portion 126 to drive the sliding member 130 to extend relative to the door 152 until abutting against the box, so as to provide power assistance for opening the door. When the user rotates the handle, the acting force generated when the sliding piece 130 slides is larger than the acting force applied when the user rotates the handle, and the user can make the sliding piece 130 prop against the box body to open the door 152 without laboriously rotating the handle, so that the purpose of saving labor for opening the door is achieved.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A booster handle, comprising:

a base;

the sliding piece is connected with the base in a sliding way;

the rotating assembly is rotationally connected with the base and comprises a power assisting end, part of the power assisting end is arranged in a protruding mode along the rotating axis of the rotating assembly, and the power assisting end is movably connected with the sliding piece;

the driving piece is connected with the rotating assembly and is used for driving the rotating assembly to rotate relative to the base;

during the rotation process of the rotating assembly relative to the base, the sliding piece and the power assisting end slide relatively to drive the sliding piece to extend or retract relative to the base.

2. The booster handle of claim 1, wherein the booster end comprises:

a smoothing section;

the extension part is arranged in a protruding manner along the rotation axis direction of the rotation assembly, and compared with the smooth part, the sliding part is matched with the smooth part and the extension part to slide in sequence in the process that the sliding part and the power assisting end slide relatively;

wherein the slider protrudes relative to the base in a case where the slider slides in cooperation with the extension.

3. The booster handle of claim 1, wherein the swivel assembly further comprises:

the rotating shaft is connected with the base;

the rotating piece is rotationally connected with the rotating shaft;

the driving piece can drive the rotating piece to rotate around the rotating shaft.

4. A booster grip as defined in claim 3, wherein,

the driving piece comprises a concave part;

the rotating assembly further comprises a protruding portion, the protruding portion and the power assisting end are located at two opposite ends of the rotating piece, and the protruding portion is inserted into the recessed portion.

5. The booster handle of any one of claims 1 to 4, wherein the base comprises:

the sliding rail is in sliding connection with the sliding piece, and the sliding piece slides along the sliding rail.

6. The booster grip of claim 5, wherein the slide comprises:

the connecting body is movably connected with the power assisting end;

the sliding body is connected with the connecting body and is in sliding connection with the sliding rail.

7. The booster grip of any one of claims 1 to 4, further comprising:

the limiting block is arranged on the base and used for limiting the rotation angle of the rotating assembly.

8. The booster grip of any one of claims 1 to 4, further comprising:

and one end of the reset spring is connected with the driving piece, and the other end of the reset spring is connected with the base and is used for resetting the driving piece.

9. A door structure, comprising:

a door body; and

the booster handle as claimed in any one of claims 1 to 8, wherein the booster handle is provided to the door body, and the slider is capable of being extended or retracted with respect to the door body.

10. A refrigeration appliance, comprising:

a case; and

the door structure of claim 9, wherein the door structure is hinged to the case, and the sliding member protrudes with respect to the door so that the sliding member abuts the case.