CN107062775B - Refrigerator power-assisted door handle assembly and refrigerator - Google Patents
Refrigerator power-assisted door handle assembly and refrigerator Download PDFInfo
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- CN107062775B CN107062775B CN201710062613.1A CN201710062613A CN107062775B CN 107062775 B CN107062775 B CN 107062775B CN 201710062613 A CN201710062613 A CN 201710062613A CN 107062775 B CN107062775 B CN 107062775B
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- refrigerator
- handle
- rotating
- push rod
- base
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/02—Details of doors or covers not otherwise covered
Abstract
The invention discloses a refrigerator power-assisted door handle assembly and a refrigerator, relates to the technical field of refrigerators, and aims to solve the problems that when an existing handle is used for opening a refrigerator door, force loss is large when the handle rotates, and a push rod of a transmission piece and the handle are easy to move out of synchronization. The invention relates to a power-assisted door handle assembly of a refrigerator, which comprises: the embedded box is internally provided with a base; the rotating piece is hinged with the base through a rotating shaft, a first hinge hole is formed in the rotating piece and deviates from the rotating center of the rotating piece, and the axis of the first hinge hole is parallel to the rotating shaft; the handle is provided with a push rod which is in rotating fit with the first hinge hole, and one end of the handle, which is far away from the base, is provided with a hand-pulling end; the push rod is connected with the embedded box in a sliding mode, the first end of the push rod is connected with the push rod through a transmission piece, the connecting point of the push rod and the transmission piece is located between the handle and the rotating piece, and the second end of the push rod is used for abutting against the refrigerator body; the piece that resets, the piece that resets can make the ejector pin reset. The invention can be used for refrigerator doors.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator power-assisted door handle assembly and a refrigerator.
Background
At present, refrigerator door department all is equipped with the magnetism sealing strip, can guarantee like this that the refrigerator keeps sealed when the door is closed, but when opening the refrigerator door, because the effect of the inside and outside pressure differential of refrigerator, the distance is more hard about the preceding 5mm that the refrigerator opened the door, especially large capacity refrigerator or freezer product, the door body is generally bigger, weight is also heavier, the magnetism sealing strip is also longer, magnetic force is big, if do not have the helping hand handle with push away the gap between refrigerator door and the box, can cause the user to open the refrigerator door more hard.
As shown in fig. 1, a conventional power-assisted door handle of a refrigerator is a pre-embedded box 01, wherein the pre-embedded box 01 can be embedded in the side wall surface of a refrigerator door body, and a support 02 is arranged in the pre-embedded box 01; the rotating part 03 (cam), the rotating part 03 and the bracket 02 are hinged through a rotating shaft, a first shaft 031 and a second shaft 032 are arranged on the rotating part 03 and deviate from the rotating center of the rotating part 03, and the first shaft 031 and the second shaft 032 are both parallel to the rotating shaft; the handle 04, one end of the handle 04 in the width direction is hinged to the first shaft 031, the other end of the handle 04 is a hand-pulling end 041, a limit guide structure is arranged between the handle 04 and the bracket 02, and when the handle 04 rotates, the limit guide structure is suitable for guiding the rotation direction of the handle 04, so that the hand-pulling end 041 is always higher than the side wall surface of the refrigerator door body in the rotation process; the ejector rod 05 is connected with the embedded box 01 in a sliding mode, the first end of the ejector rod 05 is connected with the second shaft 032 of the rotating part 03 through the transmission part 06, and the second end of the ejector rod 05 is used for abutting against the refrigerator body; when the handle 04 rotates to the open position, the second shaft 032 of the rotating member 03 extrudes the ejector rod 05 through the transmission member 06, so that the ejector rod 05 is ejected out of the embedded box 01; the push rod resetting piece 07 is used for applying resetting force to the push rod 05.
In the conventional power-assisted door handle 04 for the refrigerator, the rotating force of the handle 04 is not directly applied to the transmission piece 06, but is transmitted to the transmission piece 06 through the rotating piece 03 to realize the rotation of the transmission piece 06 and eject the ejector rod 05, so that a part of the rotating force of the handle 04 is lost on the rotating piece 03. Meanwhile, when the handle 04 rotates, the first shaft 031 and the second shaft 032 at both sides of the rotating member 03 will be subjected to opposite acting forces, so that the rotating member 03 will twist to a certain extent (i.e. the rotating member 03 tilts clockwise), resulting in a certain distance m between the connection point of the second shaft 032 and the transmission member 06 and the hinge point of the first shaft 031 and the handle 04 in the X direction, and thus the movement of the second shaft 032 and the handle 04 is not easily out of synchronization, that is, when the movement distance of the handle 04 along the X direction is d, the actual movement distance of the second shaft 032 along the X direction is smaller than d (i.e. d-m) due to the torsion of the rotating member 03, the handle 04 needs to move a larger distance along the X direction, so that the movement distance of the second shaft 032 can meet the requirement that the ejector rod 05 pushes the refrigerator door open, however, the embedded box 01 needs a larger space to meet the requirement of the movement of the handle 04, and therefore, the width of the door handle 04 of the whole refrigerator is increased.
Disclosure of Invention
The embodiment of the invention provides a refrigerator power-assisted door handle assembly, which can reduce the force loss when a user rotates a handle and avoid the phenomenon that a push rod of a transmission part is not synchronous with the motion of the handle in the process of opening a refrigerator door body by using the handle assembly.
To achieve the above object, in one aspect, an embodiment of the present invention provides a power door handle assembly for a refrigerator, including: the embedded box can be embedded in the side wall surface of the refrigerator door body, and a base is arranged in the embedded box; the rotating piece is hinged with the base through a rotating shaft, a first hinge hole is formed in the rotating piece and deviates from the rotating center of the rotating piece, and the axis of the first hinge hole is parallel to the rotating shaft; the handle is provided with a push rod, the push rod is in rotating fit with the first hinge hole, and one end of the handle, which is far away from the base, is provided with a hand-pulling end; the top rod is connected with the embedded box in a sliding mode, the first end of the top rod is connected with the push rod through a transmission piece, the connection point of the push rod and the transmission piece is located between the handle and the rotating piece, and the second end of the top rod is used for abutting against the refrigerator body; when the handle rotates to the opening position, the push rod extrudes the ejector rod through a transmission piece, so that the ejector rod is ejected out of the embedded box; the piece resets, the piece that resets can make the ejector pin reset.
The refrigerator power-assisted door handle assembly provided by the embodiment of the invention has the following advantages: because the connecting point of the push rod and the transmission piece in the refrigerator power-assisted door handle assembly provided by the embodiment of the invention is positioned between the handle and the rotating piece, the force for rotating the handle can directly act on the transmission piece through the push rod, and the force loss during the rotation of the handle is reduced; because the tie point of push rod and driving medium is located between handle and the rotating member, the tie point of handle and push rod and connecting point of push rod and driving medium are located same one side of rotating member, use this handle subassembly to open the in-process of the refrigerator door body when the user, the handle is to the effort of push rod and the counter force of driving medium to the push rod be located same one side of rotating member, the torsion that makes the rotating member take place like this is less with regard to the relative ratio, the inclination of push rod is just less relatively, push rod and driving medium tie point have been reduced greatly, the interval of push rod and handle tie point on embedded box width direction, then the push rod just guarantees synchronous with the handle easily, be favorable to reducing the space of the shared box of whole refrigerator helping hand door handle opening process.
On the other hand, the embodiment of the invention also provides a refrigerator, which comprises a refrigerator body and a refrigerator door body hinged at an opening of the refrigerator body, wherein the refrigerator power-assisted door handle assembly in the embodiment is arranged at the free end of the refrigerator door body, the embedded box is embedded in the side wall surface of the refrigerator door body, and the second end of the ejector rod of the refrigerator power-assisted door handle assembly is abutted against the refrigerator body.
Because the free end of the refrigerator door body is provided with the refrigerator power-assisted door handle assembly in the embodiment, and the embedded box is embedded in the side wall surface of the refrigerator door body, the loss of force when the handle rotates can be reduced when a user opens the refrigerator door body by using the handle assembly, the phenomenon that the push rod of the transmission part is not synchronous with the motion of the handle is avoided, and the space of the embedded box occupied in the process of opening the refrigerator door body by using the whole refrigerator power-assisted door handle is favorably reduced.
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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a conventional power-assisted door handle assembly for a refrigerator;
FIG. 2 is a schematic structural diagram of a power door handle assembly of a refrigerator according to an embodiment of the present invention;
FIG. 3 is a partial view of a refrigerator assist door handle assembly in an embodiment of the present invention;
FIG. 4 is a partial, elevational view of a refrigerator assist door handle assembly in an embodiment of the present invention;
FIG. 5 is a schematic structural view of a power-assisted door handle assembly of a refrigerator with a pre-embedded box and a transmission member removed according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a handle in a power assisted door handle assembly for a refrigerator in an embodiment of the present invention;
fig. 7 is a schematic structural diagram of the installation of the power-assisted door handle assembly of the refrigerator on the refrigerator door body in the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "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 of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 2, the power-assisted door handle assembly for a refrigerator according to an embodiment of the present invention includes: the embedded box 1, the embedded box 1 can be embedded in the sidewall of the refrigerator door, there are bases 2 in the embedded box 1; the rotating part 3 is hinged with the base 2 through a rotating shaft 21 (shown in fig. 3), a first hinge hole 31 is formed in the rotating part 3 and deviates from the rotating center of the rotating part 3, and the axis of the first hinge hole 31 is parallel to the rotating shaft 21; a push rod 41 is arranged on the handle 4, the push rod 41 is in rotating fit with the first hinge hole 31, and a hand-pulling end 42 is arranged at one end of the handle 4, which is far away from the base 2; the top rod 5, the top rod 5 and the embedded box 1 are connected in a sliding mode, the first end of the top rod 5 is connected with the push rod 41 through the transmission piece 6, the connection point of the push rod 41 and the transmission piece 6 is located between the handle 4 and the rotating piece 3, and the second end of the top rod 5 is used for abutting against the refrigerator body; when the handle 4 rotates to the opening position, the push rod 41 extrudes the ejector rod 5 through the transmission piece 6, so that the ejector rod 5 is ejected out of the embedded box 1; a reset member 7 (shown in fig. 5), wherein the reset member 7 can reset the top rod 5.
Because the connecting point of the push rod 41 and the transmission piece 6 in the power-assisted door handle assembly for the refrigerator provided by the embodiment of the invention is positioned between the handle 4 and the rotating piece 3, the force generated by rotating the handle 4 directly acts on the transmission piece 6 through the push rod 41, and the force loss generated when the handle 4 rotates is reduced; because the connecting point of the push rod 41 and the transmission piece 6 is located between the handle 4 and the rotating piece 3, and the connecting point of the handle 4 and the push rod 41 and the connecting point of the push rod 41 and the transmission piece 6 are located on the same side of the rotating piece 3, when a user uses the handle 4 assembly to open the refrigerator door body, the acting force of the handle 4 on the push rod 41 and the reaction force of the transmission piece 6 on the push rod 41 are located on the same side of the rotating piece 3, so that the torsion generated by the rotating piece 3 is relatively small, the inclination angle of the push rod 41 is relatively small, the interval of the connecting point of the push rod 41 and the transmission piece 6 and the connecting point of the push rod 41 and the handle 4 in the width direction (namely the X direction in fig. 3) of the embedded box 1 is greatly reduced, and the synchronization between the push rod 41 and the handle 4 is easily ensured, which is.
Referring to fig. 2, when the refrigerator door is opened, a user applies force to the hand-pulling end 42 of the handle 4, so that the handle 4 drives the rotating member 3 to rotate through the push rod 41, the push rod 41 extrudes the ejector rod 5 through the transmission member 6, the ejector rod 5 is ejected out of the embedded box 1, the refrigerator door body is ejected away from the refrigerator body, and the opening of the refrigerator door body is completed; when the force of the hand-pulling end 42 is removed, the push rod 5 is not extruded by the transmission piece 6, and the reset piece 7 resets the push rod 5. The user is at the in-process of opening the refrigerator door body, because push rod 41 and the rotatory cooperation of first hinge hole 31 on the rotating member 3, and push rod 41 sets up on handle 4, handle 4 rotates to the direction that is close to the side wall face of the refrigerator door body around first hinge hole 31 very easily like this, the bottom surface of hand-drawing end 42 takes place the contact friction with border 11 of pre-buried box 1 very easily, and then take place to interfere with the side wall face of the refrigerator door body and rub (pre-buried box 1 is inlayed and is established at the refrigerator door internally, border 11 of pre-buried box 1 generally with refrigerator door side wall face parallel and level), the bottom surface of hand-drawing end 42 and the side wall face of the refrigerator door body produce the mar easily like this. In order to solve the problem, as shown in fig. 4, a limit guide structure 8 is arranged between the handle 4 and the base 2, and when the handle 4 rotates, the limit guide structure 8 is suitable for guiding the rotation direction of the handle 4, so that the pull end 42 is always higher than the side wall surface of the refrigerator door body in the rotation process. Therefore, the bottom surface of the hand-pulling end 42 can not interfere and rub with the side wall surface of the refrigerator door body, and scratches can be avoided between the bottom surface of the hand-pulling end 42 and the side wall surface of the refrigerator door body.
Referring to fig. 3 and 4, the limiting guide structure 8 includes a limiting groove 81 disposed on the base 2 and a limiting post 82 disposed on the handle 4, the extending direction of the limiting post 82 is the same as the extending direction of the push rod 41, the limiting post 82 is in sliding fit with the limiting groove 81, and the movement track of the limiting groove 81 is identical to the movement track of the limiting post 82. In the process that the user opens the refrigerator door through handle 4, spacing post 82 on the handle 4 can with spacing groove 81 sliding fit, spacing groove 81 plays the supporting role to spacing post 82, restricted handle 4 around first hinge hole 31 to the rotation of the direction of the side wall face that is close to the refrigerator door body, make hand-pulling end 42 drive rotating member 3 and rotate the in-process and be higher than the side wall face of the refrigerator door body all the time, avoided hand-pulling end 42's bottom surface and the side wall face of the refrigerator door body to take place to interfere and rub.
In addition, the positions of the limiting groove 81 and the limiting column 82 can be exchanged, specifically, the limiting guide structure 8 includes the limiting groove 81 arranged on the handle 4 and the limiting column 82 arranged on the base 2, the extending direction of the limiting column 82 is the same as the extending direction of the push rod 41, the limiting column 82 is in sliding fit with the limiting groove 81, and the movement track of the limiting groove 81 is matched with the movement track of the limiting column 82. The beneficial effects of this scheme are the same with spacing groove 81 and spacing post 82 position exchange before, and will not be repeated herein.
Referring to fig. 3, the base 2 includes the first supporting plate 22 and the second supporting plate 23 that are parallel to each other, the rotating member 3 is located between the first supporting plate 22 and the second supporting plate 23, the rotating shaft 21 is respectively penetrated into the first supporting plate 22 and the second supporting plate 23, the first supporting plate 22 is arranged near the handle 4, and the limiting groove 81 is arranged on the side surface of the first supporting plate 22 near the handle 4. By disposing the rotary member 3 between the first support plate 22 and the second support plate 23, it is possible to balance the forces applied to both ends of the rotary member 3 during the rotation thereof; the side surface of the first support plate 22 close to the handle 4 is provided with a limit groove 81, so that the structure of the base 2 can be simplified without providing a separate support plate for providing the limit groove 81 or the limit post 82.
Wherein, driving medium 6 is not only, for example driving medium 6 can be the cam, and the cam is articulated with base 2, and the first end and the push rod 41 of cam support to lean on, and the second end of cam supports with the first end of ejector pin 5 and supports to lean on, and when handle 4 drove the rotating member 3 rotatory, push rod 41 can promote the cam rotatory, and the second end of cam promotes ejector pin 5 ejecting outside pre-buried box 1. In addition, as shown in fig. 2, the transmission member 6 may also be a rotating lever, the rotating lever is hinged to the base 2, a first end of the rotating lever abuts against the push rod 41, and a second end of the rotating lever abuts against a first end of the push rod 5. Compared with a cam, the rotating lever is easier to process and manufacture, the manufacturing cost is low, the occupied space of the rotating lever is small, and two ends of the rotating lever are easy to abut against the first ends of the push rod 41 and the ejector rod 5.
Referring to fig. 2 and 5, when the user removes the force on the pull end 42 of the handle 4 after the door of the refrigerator is opened, the reset piece 7 applies a reset force to the rotating lever, and the reset force can make the first end of the rotating lever rotate towards the direction close to the push rod 41. In order to enable the first end of the rotating lever to rotate towards the direction close to the push rod 41, the second end of the rotating lever can drive the push rod 5 to reset, the refrigerator power-assisted door handle assembly provided by the embodiment of the invention further comprises a connecting piece 9, the connecting piece 9 is respectively connected with the second end of the rotating lever and the first end of the push rod 5, when the first end of the rotating lever is pushed by a reset force to rotate towards the direction close to the push rod 41, the first end of the rotating lever pushes the push rod 41 and the handle 4 to reset, and the second end of the rotating lever drives the push rod 5 to reset through the connecting piece 9. Reset 7 sets up like this and has not only realized the reseing of ejector pin 5, can also realize reseing of handle 4 simultaneously, just so need not set up ejector pin 5 alone and reset 7 and handle 4 and reset 7, has simplified the structure of refrigerator helping hand door handle subassembly, has reduced the number of part, has guaranteed the reliable reseing of ejector pin 5 and handle 4.
As shown in fig. 2, the connecting member 9 includes a bottom plate 91 and a hinge shaft 911 fixed on the bottom plate 91, the bottom plate 91 is connected to the second end of the transmission lever, the push rod 5 is provided with a long hole 51, the extending direction of the long hole 51 is perpendicular to the moving direction of the push rod 5, the hinge shaft 911 is disposed in the long hole 51, when the second end of the rotation lever abuts against the first end of the push rod 5, a gap exists between the hinge shaft 911 and the wall surface of the long hole 51 at the first end far away from the push rod 5. Because the ejector pin 5 is along linear motion in the process of opening the door and resetting, and the rotation lever is rotary motion, if the articulated shaft 911 can not slide with the hole arranged on the ejector pin 5, then the rotation lever drives the ejector pin 5 to eject and reset, the ejector pin 5 is not easy to move along the linear motion, and the ejector pin 5 is easy to extrude with the matched sliding groove, and is easy to damage. Therefore, to convert the rotary motion of the turning lever into the linear motion of the ejector rod 5, in the refrigerator power-assisted door handle assembly provided by the embodiment of the invention, the ejector rod 5 is provided with the long hole 51, the extending direction of the long hole 51 is vertical to the moving direction of the ejector rod 5, and the hinge shaft 911 is arranged in the long hole 51, so that the hinge shaft 911 can slide in the long hole 51 in the ejection and reset processes of the ejector rod 5, and the rotary motion of the turning lever is converted into the linear motion of the ejector rod 5; when the second end of the rotating lever abuts against the first end of the ejector rod 5, a gap exists between the hinge shaft 911 and the wall surface of the long hole 51 far away from the first end of the ejector rod 5, so that in the process of pushing the ejector rod 5 outwards out of the embedded box 1 by the second end of the rotating lever, the wall surface of the long hole 51 far away from the first end of the ejector rod 5 on the ejector rod 5 is not affected by the action of the hinge shaft 911, namely the rotating lever pushes the ejector rod 5 out through the second end of the rotating lever, but does not push the ejector rod 5 out through the hinge shaft 911. When the ejector rod 5 resets, the second end of the rotating lever drives the hinge shaft 911 to extrude the wall surface of the long hole 51 close to the first end of the ejector rod 5, so that the reset of the ejector rod 5 is realized under the action of the hinge shaft 911 force.
In addition, the connecting member 9 may have the following structure: connecting piece 9 includes bottom plate 91 and the articulated shaft 911 that is fixed in on bottom plate 91, and bottom plate 91 is connected with the first end of ejector pin 5, has seted up the slot hole on the transmission lever, and the extending direction of slot hole is perpendicular with ejector pin 5's moving direction, and articulated shaft 911 sets up in the slot hole, and when the second end of rotating the lever supported with the first end of ejector pin 5, there was the clearance between the wall of the first end of ejector pin 5 was kept away from to articulated shaft 911 and slot hole. The scheme is that the bottom plate 91 is connected with the second end of the mandril 5, and the long hole is arranged on the transmission lever. The effect achieved by the scheme is the same as that achieved by the scheme shown in fig. 2, and is not described again here.
It should be noted that: the connecting member 9 may be detachably connected to the second end of the transmission lever or the first end of the top bar 5, such as by screw connection, clamping connection, or may be integrally formed with the second end of the transmission lever or the first end of the top bar 5, which is not limited herein.
The reset piece 7 is not unique, for example, the reset piece 7 can be a compression spring, one end of the compression spring is connected with the first end of the transmission lever, the other end of the compression spring is connected with the side wall of the embedded box 1 close to the first supporting plate 22, when a user opens the refrigerator door body through the handle 4, the push rod 41 drives the transmission lever to rotate, and the compression spring compresses and stores force; when the force on the handle 4 is removed, the transmission lever rotates in the opposite direction under the action of the elastic force of the compression spring, so that the first end of the rotation lever pushes the push rod 41 and the handle 4 to reset, and the second end of the rotation lever drives the ejector rod 5 to reset through the connecting piece 9.
In addition, as shown in fig. 2 and 5, the reset member 7 may also be a torsion spring, a first end 71 of the torsion spring abuts against the limit stop 24 disposed on the base 2, and a second end 72 of the torsion spring is clamped with the first end of the rotating lever. When a user opens the refrigerator door body through the handle 4, the push rod 41 drives the transmission lever to rotate, and the torsion spring twists to store force; when the force on the handle 4 is removed, the transmission lever rotates in the opposite direction under the action of the torsional moment of the torsional spring, so that the first end of the rotation lever pushes the push rod 41 and the handle 4 to reset, and the second end of the rotation lever drives the ejector rod 5 to reset through the connecting piece 9. Compared with a compression spring, the torsion spring stores power through torsion, the occupied space is smaller, and the design of each part in the embedded box 1 can be more compact.
Wherein, the mounted position of torsional spring is not unique, for example the torsional spring can not be installed on same fixed axle 25 with the rotation lever, specifically, is equipped with torsional spring fixed axle 25 on base 2, and the torsional spring cover is equipped with fixed axle 25 on locating torsional spring fixed axle 25 on base 2, has seted up second hinge hole 61 on the rotation lever, and second hinge hole 61 is articulated with the fixed axle 25 cooperation.
In addition, the torsion spring may also be mounted on the same fixed shaft 25 as the rotating lever, specifically, as shown in fig. 2 and 5, a second hinge hole 61 is formed in the rotating lever, the fixed shaft 25 is disposed on the base 2, the second hinge hole 61 is hinged to the fixed shaft 25 in a matching manner, the torsion spring is sleeved on the fixed shaft 25, and the torsion spring is located between the base 2 and the rotating lever. Compared with the scheme that the torsion spring and the rotating lever are not arranged on the same fixed shaft 25, the torsion spring and the rotating lever are arranged on the same fixed shaft 25, so that the occupied space can be reduced, and the structure of the torsion spring and the rotating lever is more compact. Wherein, the joint of the fixed shaft 25 and the base 2 is provided with a plurality of connecting ribs 27, which can improve the connecting strength of the fixed shaft 25 and the base 2 and reduce the deformation of the fixed shaft 25.
In order to save labor in the process of opening the refrigerator door by the handle 4, as shown in fig. 2, the distance from the first end of the turning lever to the rotation center of the turning lever is D, and the distance from the second end of the turning lever to the rotation center of the turning lever is D, D > D. Because the first end of the rotating lever is abutted against the push rod 41, and the second end of the rotating lever is abutted against the first end of the push rod 5, the force arm of the push rod 41 to the acting force of the rotating lever is larger than the force arm of the resistance of the push rod 5 to push away from the door body, and the rotating lever forms a labor-saving lever, so that the labor is saved in the process of opening the refrigerator door by the handle 4. D is 2:1, so that half of force can be saved in the process of opening the refrigerator door by using the handle 4, and a user can open the refrigerator door more easily.
Referring to fig. 6, the handle 4 is formed by bending a plate, and since the dimension of the handle 4 in the length direction is longer, that is, the length of the handle 4 in the Y direction is longer, the handle 4 is easily deformed by a user in the process of opening the refrigerator door body by the handle 4, and in order to reduce the deformation of the handle 4 in the process of opening the door, the thickness of the plate at one end of the handle 4 close to the base 2 is greater than that of the plate at the rest part of the handle 4. Therefore, the cross section of the handle 4 is formed into a shape with a thick bottom and a relatively thin middle, the strength of the handle 4 can be improved by adopting the cross section, the rigidity of the handle 4 is increased, the deformation resistance of the handle 4 is improved, and the deformation of the handle 4 can be reduced when a user uses the handle 4 to open the refrigerator door body.
Simulation calculation and tests show that when the thickness of the plate (namely, the thickness M in the figure 6) at one end of the handle 4 close to the base 2 ranges from 4 mm to 7mm, and the thickness of the plate (namely, the thickness N in the figure 6) at the rest part of the handle 4 ranges from 2 mm to 5mm, the handle 4 has good strength and rigidity, and deformation of the handle 4 when a refrigerator door body is opened can be reduced.
Further simulation calculation and test show that the thickness of the plate at one end of the handle 4 close to the base 2 is 5.5mm, and when the thickness of the plate at the rest part of the handle 4 is 3mm, the handle 4 has better strength and rigidity, and the deformation of the handle 4 when the refrigerator door body is opened can be greatly reduced.
The type of the rotating member 3 is not exclusive, for example, the rotating member 3 may be a cam, and as shown in fig. 2, the rotating member 3 may also be a rotating rod, which occupies a small space compared to a cam, and is not easy to interfere with the movement of a rotating lever, and meanwhile, the rotating rod is easy to manufacture and has a low cost.
Referring to fig. 2, when the push rod 41 pushes the first end of the turn lever to rotate the turn lever, a reaction force of the turn lever is received at a connection point of the push rod 41 and the turn lever, which easily deforms the push rod 41, and in order to reduce the deformation of the push rod 41, a reinforcing rib 43 is provided at a connection point of the push rod 41 and the handle 4. The reinforcing rib 43 improves the connecting strength between the push rod 41 and the handle 4, increases the ability of the push rod 41 to resist deformation, and reduces the deformation of the push rod 41 in the process of pushing the rotation lever to rotate by the push rod 41. Wherein, the connecting point of the push rod 41 and the rotating lever can be arranged at the middle position of the push rod 41, so that the stress balance of the push rod 41 can be ensured.
Referring to fig. 5, base 2 mainly used is to the support of parts such as transmission piece 6, torsional spring, rotating member 3, and base 2 sets up in pre-buried box 1, and base 2 can dismantle with pre-buried box 1 and be connected, for example base 2 can be connected with pre-buried box 1 through screw 26, has the part to take place to damage among the refrigerator helping hand door handle subassembly like this, can take out base 2 from pre-buried box 1, and the part that conveniently takes place to damage maintains the change.
When a user uses the handle 4 to open the refrigerator door, in order to balance the stress on the two ends of the handle 4, the two rotating members 3 are hinged to the base 2 at the two ends of the handle 4 along the length direction through the rotating shafts 21, the two push rods 41 are respectively arranged on the two sides of the handle 4 along the length direction, and the two push rods 41 are respectively matched with the first hinge holes 31 on the corresponding rotating members 3 in a rotating manner; the number of the transmission pieces 6 is two, and the first ends of the two transmission pieces 6 are respectively abutted against the push rod 41; the number of the ejector rods 5 is two, the first ends of the two ejector rods 5 are respectively abutted against the second ends of the corresponding transmission parts 6, and the second ends of the two ejector rods 5 are respectively abutted against the refrigerator body; the number of the torsion springs is two, the two torsion springs are respectively sleeved on the fixed shaft 25 arranged on the base 2, the first ends 71 of the two torsion springs abut against the limit stop 24 arranged on the base 2, and the second ends 72 are clamped with the first end of the rotating lever. Because handle 4 is longer along length direction, if only establish push rod 41 in handle 4 along length direction's one end, rotating member 3, base 2, driving medium 6, ejector pin 5, reset 7, when the user opened the refrigerator door body, it is unbalanced to receive the force at handle 4 both ends very easily, handle 4 does not set up push rod 41, rotating member 3, base 2, driving medium 6, ejector pin 5, the one end of reset 7 can take place to warp easily, handle 4 can be blocked at the in-process of opening the refrigerator door body during serious. Therefore, the push rod 41, the rotating part 3, the base 2, the transmission part 6, the ejector rod 5 and the reset part 7 are arranged at the two ends of the handle 4, so that the two ends of the handle 4 are balanced in stress in the process of opening the refrigerator door.
On the other hand, as shown in fig. 7, an embodiment of the present invention further provides a refrigerator, which includes a refrigerator body and a refrigerator door 200 hinged at an opening of the refrigerator body, a free end of the refrigerator door 200 is provided with the refrigerator power-assisted door handle assembly 100 in any of the above embodiments, the embedded box 1 is embedded in a side wall surface 201 of the refrigerator door 200, and a second end of the ejector 5 of the refrigerator power-assisted door handle assembly 100 abuts against the refrigerator body.
Because the free end of the refrigerator door body 200 is provided with the refrigerator power-assisted door handle assembly 100 in any one of the embodiments, and the embedded box 1 is embedded in the side wall surface 201 of the refrigerator door body 200, in the process of opening the refrigerator door body 200 by using the handle 4, the loss of the rotating force of the handle 4 can be reduced, the phenomenon that the push rod 41 of the transmission piece 6 and the handle 4 do not move synchronously is avoided, and the space of the embedded box 1 occupied by the process of opening the refrigerator door body 200 by using the handle 4 is reduced.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (16)
1. A refrigerator booster door handle assembly, comprising:
the embedded box can be embedded in the side wall surface of the refrigerator door body, and a base is arranged in the embedded box;
the rotating piece is hinged with the base through a rotating shaft, a first hinge hole is formed in the rotating piece and deviates from the rotating center of the rotating piece, and the axis of the first hinge hole is parallel to the rotating shaft;
the handle is provided with a push rod, the push rod is in rotating fit with the first hinge hole, and one end of the handle, which is far away from the base, is provided with a hand-pulling end;
the top rod is connected with the embedded box in a sliding mode, the first end of the top rod is connected with the push rod through a transmission piece, the transmission piece and the rotating piece are located on the same side of the handle along the extending direction of the rotating shaft, the connecting point of the push rod and the transmission piece is located between the handle and the rotating piece, and the second end of the top rod is used for abutting against a refrigerator body; when the handle rotates to the opening position, the push rod extrudes the ejector rod through a transmission piece, so that the ejector rod is ejected out of the embedded box;
the piece resets, the piece that resets can make the ejector pin reset.
2. The refrigerator power-assisted door handle assembly as claimed in claim 1, wherein a limiting guide structure is provided between the handle and the base, and when the handle rotates, the limiting guide structure is adapted to guide the rotation direction of the handle, so that the handle end is always higher than the side wall surface of the refrigerator door body during the rotation process.
3. The refrigerator power-assisted door handle assembly as claimed in claim 2, wherein the limiting guide structure comprises a limiting groove disposed on the base and a limiting post disposed on the handle, the extending direction of the limiting post is the same as the extending direction of the push rod, the limiting post is in sliding fit with the limiting groove, and the limiting groove is matched with the motion track of the limiting post.
4. The door handle assembly as claimed in claim 3, wherein the base includes a first support plate and a second support plate parallel to each other, the rotating member is disposed between the first support plate and the second support plate, the rotating shaft is respectively inserted into the first support plate and the second support plate, the first support plate is disposed adjacent to the handle, and the limiting groove is opened on a side surface of the first support plate adjacent to the handle.
5. The refrigerator door handle assembly as claimed in claim 1, wherein the transmission member is a rotating lever, the rotating lever is hinged to the base, a first end of the rotating lever abuts against the push rod, and a second end of the rotating lever abuts against a first end of the push rod.
6. The door handle assembly according to claim 5, wherein the reset member applies a reset force to the rotating lever, the reset force causing the first end of the rotating lever to rotate in a direction approaching the push rod, and further comprising a connecting member respectively connected to the second end of the rotating lever and the first end of the push rod, wherein when the reset force pushes the first end of the rotating lever to rotate in a direction approaching the push rod, the first end of the rotating lever pushes the push rod and the handle to reset, and the second end of the rotating lever drives the push rod to reset through the connecting member.
7. The door handle assembly according to claim 6, wherein the connecting member comprises a base plate and a hinge shaft fixed to the base plate, the base plate is connected to the second end of the rotation lever, and the eject lever is formed with a long hole; or the bottom plate is connected with the second end of the ejector rod, and the rotating lever is provided with a long hole;
the extending direction of the long hole is perpendicular to the moving direction of the ejector rod, the hinged shaft is arranged in the long hole, and when the second end of the rotating lever is abutted to the first end of the ejector rod, a gap exists between the hinged shaft and the wall surface of the first end of the ejector rod, which is far away from the long hole.
8. The refrigerator door handle assembly as claimed in claim 6, wherein the reset member is a torsion spring, a first end of the torsion spring abuts against a limit stop disposed on the base, and a second end of the torsion spring is engaged with the first end of the rotation lever.
9. The refrigerator door handle assembly as claimed in claim 8, wherein the rotating lever has a second hinge hole, the base has a fixed shaft, the second hinge hole is engaged with the fixed shaft, the torsion spring is disposed on the fixed shaft, and the torsion spring is disposed between the base and the rotating lever.
10. The refrigerator assist door handle assembly of claim 5 wherein the first end of the turn lever is spaced from the center of rotation of the turn lever by a distance D and the second end of the turn lever is spaced from the center of rotation of the turn lever by a distance D, D > D.
11. The refrigerator assist door handle assembly of claim 10 wherein D is 2: 1.
12. The refrigerator assisted door handle assembly according to any one of claims 1 to 11, wherein the handle is formed by bending a plate, and the thickness of the plate at one end of the handle close to the base is larger than that of the rest part of the handle.
13. The refrigerator door handle assembly as claimed in claim 12, wherein the handle has a plate thickness of 4-7 mm at an end thereof adjacent to the base, and a plate thickness of 2-5 mm at the remaining portion of the handle.
14. The refrigerator assist door handle assembly of claim 13 wherein the sheet thickness of the handle near the base end is 5.5mm and the sheet thickness of the remainder of the handle is 3 mm.
15. The refrigerator assisted door handle assembly according to any one of claims 1 to 11, wherein the rotating member is a rotating lever.
16. The refrigerator comprises a refrigerator body and a refrigerator door body hinged at an opening of the refrigerator body, and is characterized in that a free end of the refrigerator door body is provided with the refrigerator power-assisted door handle assembly as claimed in any one of claims 1 to 15, the embedded box is embedded in a side wall surface of the refrigerator door body, and a second end of an ejector rod of the refrigerator power-assisted door handle assembly abuts against the refrigerator body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710062613.1A CN107062775B (en) | 2017-01-23 | 2017-01-23 | Refrigerator power-assisted door handle assembly and refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710062613.1A CN107062775B (en) | 2017-01-23 | 2017-01-23 | Refrigerator power-assisted door handle assembly and refrigerator |
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| CN107062775A CN107062775A (en) | 2017-08-18 |
| CN107062775B true CN107062775B (en) | 2020-01-10 |
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| CN201710062613.1A Active CN107062775B (en) | 2017-01-23 | 2017-01-23 | Refrigerator power-assisted door handle assembly and refrigerator |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756462B (en) * | 2018-06-06 | 2022-05-20 | 青岛海尔特种电冰柜有限公司 | Power-assisted door handle assembly and refrigeration equipment |
| CN209877465U (en) * | 2018-11-09 | 2019-12-31 | 多美达瑞典有限公司 | Handle assembly and box door for refrigeration equipment and refrigeration equipment assembly |
| WO2020119275A1 (en) * | 2018-12-13 | 2020-06-18 | 青岛海尔特种电冰柜有限公司 | Power-assisted door handle assembly and refrigeration apparatus |
| WO2020119274A1 (en) * | 2018-12-13 | 2020-06-18 | 青岛海尔特种电冰柜有限公司 | Labor-saving door handle assembly and refrigeration device |
| WO2020119276A1 (en) * | 2018-12-13 | 2020-06-18 | 青岛海尔特种电冰柜有限公司 | Power-assisted door handle assembly and refrigeration apparatus |
| CN109403717B (en) * | 2018-12-29 | 2021-07-06 | Tcl家用电器（合肥）有限公司 | Handle assembly and refrigerator |
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| CN107062775A (en) | 2017-08-18 |
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