CN110748255A - A kind of refrigerator - Google Patents

A kind of refrigerator Download PDF

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Publication number
CN110748255A
CN110748255A CN201911004677.1A CN201911004677A CN110748255A CN 110748255 A CN110748255 A CN 110748255A CN 201911004677 A CN201911004677 A CN 201911004677A CN 110748255 A CN110748255 A CN 110748255A
Authority
CN
China
Prior art keywords
refrigerator
wedge
hinge
upper support
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911004677.1A
Other languages
Chinese (zh)
Inventor
刘小锋
符栋华
晏康福
姚惠民
翁浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haixin Rongsheng (guangdong) Refrigerator Co Ltd
Hisense Ronshen Guangdong Refrigerator Co Ltd
Original Assignee
Haixin Rongsheng (guangdong) Refrigerator Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Haixin Rongsheng (guangdong) Refrigerator Co Ltd filed Critical Haixin Rongsheng (guangdong) Refrigerator Co Ltd
Priority to CN201911004677.1A priority Critical patent/CN110748255A/en
Publication of CN110748255A publication Critical patent/CN110748255A/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/02—Hinges with pins with one pin
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/10—Pins, sockets or sleeves; Removable pins
    • E05D5/12—Securing pins in sockets, movably or not
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/10—Pins, sockets or sleeves; Removable pins
    • E05D5/14—Construction of sockets or sleeves
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1207—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis
    • 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
    • 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
    • F25D2323/024—Door hinges

Abstract

The invention discloses a refrigerator, relates to the technical field of refrigerators, and aims to solve the problem that the refrigerator door of the refrigerator in the prior art is difficult to open on the basis of realizing automatic closing. The refrigerator comprises a refrigerator body and a refrigerator door which are hinged through a hinge, a shaft sleeve is fixedly connected with the refrigerator door, and a mounting through hole is formed in the shaft sleeve; the transmission device is arranged in the mounting through hole; the transmission device comprises a hinge shaft fixed on the box body; the lower support is fixed on the hinge shaft, and the upper end surface of the lower support is provided with wedge-shaped teeth; the upper support is sleeved on the hinge shaft, a wedge-shaped groove corresponding to the wedge-shaped tooth is formed in the lower end face of the upper support, the wedge-shaped tooth consists of a top face and two side faces, at least one of the two side faces of the wedge-shaped tooth is a spiral face, and the spiral face is used for guiding the upper support to spirally ascend or spirally descend along the axis of the hinge shaft; the upper support is connected with the shaft sleeve in a sliding way through the guide part; the limiting block is fixedly arranged on the shaft sleeve; the elastic part is abutted between the upper support and the limiting block.

Description

A kind of refrigerator
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator.
Background
In the prior art, the door and the box body of the refrigerator are connected through the hinge, so that after people place or take articles, if force applied when the door of the refrigerator is closed is small, the door of the refrigerator is not closed easily, cold air in the refrigerator can be lost, a compressor of the refrigerator is in a working state for a long time, extra electric energy is consumed, and the electric energy is wasted.
Therefore, the prior art refrigerator is provided with a hinge as shown in fig. 1, the hinge comprises a shaft sleeve 01, an elastic part 02 is arranged in the shaft sleeve 01, an end cover 03 is arranged at the upper end of the elastic part 02, a screw 04 is arranged at the upper end of the end cover 03, a reset sliding sleeve 05 is arranged at the lower end of the elastic part 02, and a reset rotating shaft 06 which is spirally matched with the reset sliding sleeve 05 in a rising or descending manner is arranged at the lower end of the reset sliding sleeve 05. When a user opens the door of the refrigerator, the door drives the reset rotating shaft 06 to rotate, the reset sliding sleeve 05 is limited by the shaft sleeve 01 and cannot rotate relative to the shaft sleeve 01, the spiral matching surface of the reset sliding sleeve 05 and the spiral matching surface of the reset rotating shaft 06 rotate relatively, the spiral matching surface of the reset rotating shaft 06 can guide the spiral matching surface of the reset sliding sleeve 05 to rotate along the axis of the reset rotating shaft 06 and move upwards, so that the reset rotating shaft 06 moves upwards, and the elastic part 02 is extruded to store potential energy; when a user closes the door of the refrigerator, the door is only required to be closed by a small angle, the reset rotating shaft 06 and the reset sliding sleeve 05 are in contact with each other in a spiral matching surface, the elastic part of the elastic part 02 acts on the force, the reset rotating shaft 06 and the reset sliding sleeve 05 rotate relatively, and the door of the refrigerator is automatically closed.
However, elastic part 02 and reset sliding sleeve 05 all are located the upper end of pivot 06 that resets in the above-mentioned hinge, when opening the chamber door of refrigerator, the chamber door will drive pivot 06 that resets and rotate, when opening the refrigerator chamber door from this, pivot 06 that resets can rotate around its axis at the in-process of chamber door motion, and lift up reset sliding sleeve 05, make its rebound, the gravity that resets sliding sleeve 05 and the elastic force of elastic part 02 need be overcome this moment, make the user need spend great power at the chamber door in-process of opening the refrigerator, lead to opening of chamber door harder.
Disclosure of Invention
The embodiment of the invention provides a refrigerator, which is used for solving the problem that the refrigerator door of the refrigerator in the prior art is difficult to open on the basis of realizing automatic closing.
In order to achieve the aim, the invention provides a refrigerator which comprises a refrigerator body, wherein a storage space is formed in the refrigerator body; the box door is used for covering the storage space; the hinge is used for hinging the box body and the box door and comprises a shaft sleeve which is fixedly connected with the box door; the mounting through hole is formed on the shaft sleeve; the transmission device is arranged in the mounting through hole; the transmission device comprises a hinge shaft, and the hinge shaft is fixed on the box body; the lower support is fixed on the hinge shaft, and wedge-shaped teeth are arranged on the upper end face of the lower support; the upper support is sleeved on the hinge shaft and positioned above the lower support, a wedge-shaped groove corresponding to the wedge-shaped teeth is formed in the lower end face of the upper support, the wedge-shaped teeth comprise a top face and two side faces, at least one of the two side faces of each wedge-shaped tooth is a spiral face, and the spiral face is used for guiding the upper support to spirally ascend or spirally descend along the axis of the hinge shaft; the guide part is used for limiting the rotation of the upper support along the inner side wall of the shaft sleeve, and the upper support is connected with the shaft sleeve in a sliding mode through the guide part; the limiting block is fixedly arranged on the shaft sleeve; the elastic part is located below the limiting block and is abutted between the upper support and the limiting block.
The working process of the hinge in the refrigerator provided by the invention is as follows: when a user opens the box door, the box door drives the shaft sleeve fixedly arranged on the box door to rotate anticlockwise along the axis of the hinge shaft, and the guide part is arranged between the shaft sleeve and the upper support and can limit the rotation between the upper support and the inner side wall of the shaft sleeve, so that the upper support can only slide upwards or downwards in the shaft sleeve, and the upper support can be driven to rotate anticlockwise and move upwards along the spiral surface of the wedge-shaped teeth on the lower support through the guide part when the shaft sleeve rotates anticlockwise. The two ends of the elastic part are respectively abutted against the upper end face of the upper support and the lower end face of the limiting block, and the limiting block is fixedly connected with the shaft sleeve, so that when the upper support moves upwards along the axis of the hinge shaft, the distance between the upper support and the limiting block can be gradually reduced, the elastic part is compressed and potential energy is stored. When the user is closing the chamber door, only need apply less power to the chamber door for the wedge groove of upper bracket contacts towards with the helicoid of wedge tooth, at this moment under the combined action of the power that resets of elastic component power and the gravity of upper bracket, the helicoid clockwise rotation and the downstream of wedge tooth will be followed on the lower bracket to the upper bracket, and the upper bracket passes through the guide part and can drive the axle sleeve this moment, and also clockwise rotation around the axis of hinge pin with axle sleeve fixed connection's chamber door, thereby realized the self-closing of refrigerator chamber door.
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 view illustrating a structure of a hinge in a refrigerator in the related art;
FIG. 2 is a schematic structural diagram of a hinge in a refrigerator according to an embodiment of the present invention;
FIG. 3 is an exploded view of a hinge in a refrigerator according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a hinge of a refrigerator according to an embodiment of the present invention when a door of the refrigerator is opened;
FIG. 5 is a schematic structural view of a lower support of a hinge in a refrigerator according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an upper support of a hinge in a refrigerator according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a stopper of a hinge in a refrigerator according to an embodiment of the present invention;
fig. 8 is a schematic view of an assembly structure of a hinge in a refrigerator according to an embodiment of the present 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 and positional relationships that are based on the orientation or positional relationships shown in the drawings or assemblies, are used for convenience in describing the present invention and for simplicity in 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 therefore, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The hinge for the refrigerator door not only can realize the automatic closing function of the refrigerator door, but also can ensure that the process of opening the refrigerator door by a user is more labor-saving.
Referring to fig. 2 to 6, the refrigerator according to the embodiment of the present invention includes a refrigerator body and a door, wherein a storage space is formed in the refrigerator body; the box door is used for covering the storage space; the hinge is used for hinging the box body and the box door, and comprises a shaft sleeve 1, and the shaft sleeve 1 is fixedly connected with the box door; the shaft sleeve 1 is provided with a mounting through hole; the transmission device 2 is arranged in the mounting through hole; the transmission device 2 comprises a hinge shaft 21 fixed on the box body; a lower support 22 fixed on the hinge shaft 21, wherein the upper end surface of the lower support 22 is provided with wedge-shaped teeth 221; the upper support 23 is sleeved on the hinge shaft 21, the upper support 23 is positioned above the lower support 22, a wedge-shaped groove 231 corresponding to the wedge-shaped tooth 221 is arranged on the lower end face of the upper support 23, the wedge-shaped tooth 221 is composed of a top face and two side faces, at least one of the two side faces of the wedge-shaped tooth 221 is a spiral face, and the spiral face is used for guiding the upper support 23 to spirally ascend or spirally descend along the axis of the hinge shaft 21; a guide part for limiting the rotation of the upper support 23 along the inner side wall of the shaft sleeve 1, wherein the upper support 23 is connected with the shaft sleeve 1 in a sliding way through the guide part; the limiting block 25 is fixedly arranged on the shaft sleeve 1; the elastic part 24 is located below the stopper 25 and abuts between the upper support 23 and the stopper 25.
The working process of the hinge in the refrigerator provided by the invention is as follows: when a user opens the box door, the box door drives the shaft sleeve 1 fixedly arranged on the box door to rotate anticlockwise along the axis of the hinge shaft 21, and because the guide part is arranged between the shaft sleeve 1 and the upper support 23, the guide part can limit the rotation between the upper support 23 and the inner side wall of the shaft sleeve 1, so that the upper support 23 can only slide upwards or downwards in the shaft sleeve 1, and when the shaft sleeve 1 rotates anticlockwise, the guide part can drive the upper support 23 to rotate anticlockwise along the spiral surface of the wedge-shaped teeth 221 on the lower support 22 and move upwards. Because the two ends of the elastic part 24 are respectively abutted against the upper end surface of the upper support 23 and the lower end surface of the limit block 25, and the limit block 25 is fixedly connected with the shaft sleeve 1, when the upper support 23 moves upwards along the axis of the hinge shaft 21, the distance between the upper support 23 and the limit block 25 is gradually reduced, the elastic part 24 is compressed and potential energy is stored. When a user closes the refrigerator door, only a small force needs to be applied to the refrigerator door, so that the wedge-shaped groove 231 of the upper support 23 is in contact with the spiral surface of the wedge-shaped tooth 221, at this time, under the combined action of the restoring force of the elastic part 24 and the gravity of the upper support 23, the upper support 23 will rotate clockwise along the spiral surface of the wedge-shaped tooth 221 on the lower support 22 and move downward, at this time, the upper support 23 can drive the shaft sleeve 1 and the refrigerator door fixedly connected with the shaft sleeve 1 to rotate clockwise around the axis of the hinge shaft 21 through the guide part, and thus, the automatic closing of the refrigerator door is realized. The elastic portion 24 may be a spring or other elastic member.
Further, a plurality of wedge-shaped teeth 221 are arranged on the upper end surface of the lower support 22, the wedge-shaped teeth 221 are uniformly distributed along the circumferential direction of the lower support 22, a plurality of wedge-shaped grooves 231 are arranged on the lower end surface of the upper support 23, and the number of the wedge-shaped teeth 221 and the number of the wedge-shaped grooves 231 are equal. Illustratively, as shown in fig. 5 and 6, two wedge-shaped teeth 221 are provided on the upper end surface of the lower support 22, the two wedge-shaped teeth 221 are uniformly distributed along the circumferential direction of the lower support 22, two wedge-shaped grooves 231 are provided on the lower end surface of the upper support 23, and the number of the wedge-shaped teeth 221 and the number of the wedge-shaped grooves 231 are equal. Compared with the upper end surface of the lower support 22 provided with the wedge-shaped tooth 221, the lower end surface of the upper support 23 is provided with the wedge-shaped groove 231, and by arranging the wedge-shaped teeth 221 and the wedge-shaped grooves 231, the movement process of the upper support 23 along a plurality of independent spiral surfaces on the wedge-shaped teeth 221 on the lower support 22 can be ensured to be relatively stable, the stress of the upper support 23 and the lower support 22 is relatively balanced, the upper support 23 and the lower support 22 cannot be inclined along the axis of the hinge shaft 21, the coaxiality of the upper support 23, the lower support 22 and the hinge shaft 21 is relatively good, the upper support 23 can be prevented from being clamped with the hinge shaft 21 in the movement process, and the reliability of the hinge in the use process is ensured.
Referring to fig. 5, the top surface of the wedge tooth 221 is a horizontal surface or the top surface of the wedge tooth 221 is a circular arc surface. Compared with the latter, the former solution, in which the top surface of the wedge-shaped tooth 221 is a horizontal surface, can make the upper support 23 rotate along the spiral surface of the wedge-shaped tooth 221 to the top surface of the wedge-shaped tooth 221, and will continue to rotate along the horizontal surface of the tooth top of the wedge-shaped tooth 221, without moving upward or downward along the axial direction of the hinge shaft 21, thereby ensuring that the door can be opened for a long time.
Based on the above embodiment, in the absence of external force, when the opening angle of the door is smaller than the preset angle, the upper support 23 will spirally descend along the spiral surface of the wedge-shaped teeth 221 of the lower support 22; when the opening angle of the door is greater than or equal to the preset angle, the upper support 23 will spirally rise to the top surface of the wedge-shaped tooth 221 along the spiral surface of the wedge-shaped tooth 221 of the lower support 22, and at this time, if the opening angle of the door is continuously increased, the upper support 23 will not continuously move upwards. It should be noted that: the opening angle of the box door refers to an included angle between a plane where the box door is located and a plane where the box body is located, namely the rotating angle of the box door relative to the box body.
When the box door opening angle adjusting device is used specifically, the preset angle can be 60 degrees, and due to interference between the box body and the box door, the maximum opening angle of the box door can only reach 120 degrees, namely when the opening angle of the box door rotates from 0 degree to 60 degrees, the upper support 23 just rises to the top surface of the wedge-shaped tooth 221 along the spiral surface of the wedge-shaped tooth 221 on the lower support 22 and is in contact with the top surface; at this moment, the door is continuously opened until the opening angle is 120 degrees, and because the top surface of the wedge-shaped teeth 221 is a horizontal plane, even if external force is removed at this moment, the upper support 23 can also be stably positioned on the top surface of the wedge-shaped teeth 221 of the lower support 22 and cannot move downwards, so that the door can be kept in an open state for a long time, and a user can conveniently take articles from the box body or place the articles in the box body. When the box door is closed, only a small angle is needed to be closed, and the opening angle of the box door is ensured to be smaller than 60 degrees, which indicates that the upper support 23 is in contact with the spiral surface of the wedge-shaped teeth 221 of the lower support 22 at the moment, and under the action of the reset force of the elastic part 24 and the gravity of the upper support 23, the upper support 23 will rotate along the spiral surface of the wedge-shaped teeth 221 of the lower support 22 and move downwards, and only a small force needs to be applied to the box door, so that the automatic closing of the box door can be realized.
It should be noted that: in order to increase the self-closing force of the door, the elastic portion 24 may be in a pre-compression state during installation, so that when the upper support 23 moves upwards, the elastic portion 24 can be further pressed, so that the elastic portion 24 can generate a larger reset force, that is, the elastic portion 24 exerts a larger reaction force on the upper support 23, the downward movement speed of the upper support 23 is increased, and the effect of further increasing the self-closing force of the door is achieved.
In order to make the adhesion between the refrigerator door and the refrigerator body of the refrigerator tighter and ensure better sealing effect of the refrigerator door, the pre-bias angle of the spiral surface on the wedge-shaped teeth 221 of the lower support 22 is adjusted (the pre-bias angle refers to the included angle between the spiral surface of the wedge-shaped teeth 221 and the horizontal direction), when the upper support 23 moves downwards along the spiral surface of the wedge-shaped teeth 221, the gravity of the upper support 23 and the reset force of the elastic part 24 generate downward force, the force generates component force towards the front surface of the refrigerator body on the spiral surface of the wedge-shaped teeth 221 of the lower support 22, and further the self-closing force of the refrigerator door is increased, and the sealing effect of the refrigerator door is improved.
Optionally, the pre-offset angle of the spiral surface has a value range of: 5 degrees to 8 degrees, when the pre-offset angle is less than 5 degrees, the slope of the spiral surface is slow, the spiral descending of the upper support 23 along the spiral surface of the wedge-shaped teeth 221 is not facilitated, the reliability of the automatic closing operation of the box door is low, when the pre-offset angle is greater than 8 degrees, the slope of the spiral surface is fast, the upper support 23 suddenly descends spirally along the spiral surface of the wedge-shaped teeth 221, the lower support 22 and the upper support 23 generate large collision sound, and even the upper end surface of the lower support 22 and the lower end surface of the upper support 23 are damaged.
Of course, the self-closing force of the box door can also be increased by the misalignment between the wedge-shaped tooth 221 of the lower support 22 and the wedge-shaped groove 231 of the upper support 23, and the size of the wedge-shaped groove 231 on the upper support 23 is designed to be slightly larger than that of the wedge-shaped tooth 221, so that when the upper support 23 moves downwards along the spiral surface of the wedge-shaped tooth 221 on the lower support 22 to the lowest position, under the action of inertia, the upper support 23 can still rotate clockwise by a proper angle around the axis of the hinge shaft 21, so as to drive the bushing 1 and the box door to also rotate clockwise by a proper angle around the axis of the hinge shaft 21, and thus the box door and the box body are attached more tightly.
Optionally, the guide portion includes a guide groove and a guide post, the outer side wall of the upper support 23 is provided with the guide groove, the opening direction of the guide groove is consistent with the axial direction of the hinge shaft 21, the shaft sleeve 1 is provided with the guide post, and the guide post is located in the guide groove. Optionally, the guide portion includes a guide groove and a guide post 232, the inner side wall of the shaft sleeve 1 is provided with the guide groove, the opening direction of the guide groove is consistent with the axial direction of the hinge shaft 21, the upper support 23 is provided with the guide post 232, the guide post 232 is located in the guide groove, the relative rotation between the shaft sleeve 1 and the upper support 23 can be limited through the guide portion, so that the upper support 23 can only slide relative to the shaft sleeve 1, and the guide portion has a simple structure and is easy to implement, as shown in fig. 6.
Referring to fig. 3 and 7, the hinge for the refrigerator door further includes a positioning pin 4, the positioning groove 251 is formed in the horizontal direction of the limiting block 25, the positioning hole 11 corresponding to the positioning groove 251 is formed in the side wall of the shaft sleeve 1, and the positioning pin 4 penetrates through the positioning hole 11 and is located in the positioning groove 251, so that the shaft sleeve 1 and the limiting block 25 are fixed simply and conveniently and are convenient to install.
Optionally, the hinge for the refrigerator door further comprises a positioning screw, a screw hole is formed in the side wall of the limiting block 25, and a screw hole is also formed in the corresponding position of the side wall of the shaft sleeve 1. During specific installation, the screw is screwed into the screw hole and tightened to realize the fixed connection between the shaft sleeve 1 and the limiting block 25.
In order to facilitate the assembly of the positioning pin 4, the limiting groove on the limiting block 25 and the positioning hole 11 on the side wall of the shaft sleeve 1 are always in the same position, so that the positioning groove 251 on the limiting block 25 and the positioning hole 11 on the shaft sleeve 1 are prevented from being dislocated, and the positioning pin 4 cannot be smoothly inserted into the positioning hole 11 and is positioned in the positioning groove 251.
It should be noted that: the protrusion 252 on the side wall of the limiting block 25 is located in the guide groove of the shaft sleeve 1, and the guide post 232 on the upper support 23 is located in the guide groove of the shaft sleeve 1, the guide grooves are the same guide groove, and the guide grooves extend from the plane where the top of the shaft sleeve 1 is located to the plane where the upper end surface of the lower support 22 is located.
Referring to fig. 2 and 8, the hinge for the refrigerator door further includes a hinge seat 5, a central hole 253 is formed at the bottom of the limiting block 25, the upper portion of the hinge shaft 21 is inserted into the central hole 253 and is in clearance fit with the central hole 253, the lower portion of the hinge shaft 21 is fixedly connected with the refrigerator body through the hinge seat, and the upper portion of the hinge shaft 21 is inserted into the central hole 253 and is in clearance fit with the central hole 253, so that the problem that the upper end of the hinge shaft 21 is abraded or cannot rotate due to interference between a shaft section of the upper end of the hinge shaft 21 located in the central hole 253 and a side wall of the central hole 253 in the process of rotating the limiting block 25 and the shaft sleeve 1 can be avoided, and meanwhile, the lower end of the hinge shaft 21 is fixedly connected with the hinge seat 5, so.
In order to ensure that the upper support 23 is not locked in the moving process, in the hinge for the refrigerator door in the embodiment of the invention, the plurality of guide posts 232 are arranged on the upper support 23, the plurality of guide posts 232 are uniformly distributed along the circumferential direction of the upper support 23, the plurality of guide grooves are arranged and correspond to the plurality of guide posts 232 one by one, and compared with one guide post 232, the guide groove corresponding to the guide post 232 is also provided.
The center hole of the lower support 22 is a kidney-shaped hole, and the horizontal section of the matching shaft section of the hinge shaft 21 and the lower support 22 is a kidney-shaped section. Or, the central hole of the lower support 22 is a square hole, and the horizontal section of the matching shaft section of the hinge shaft 21 and the lower support 22 is a square section, so that the rotation of the lower support 22 relative to the hinge shaft 21 can be limited without adding other parts. The embodiment of the present invention does not specifically limit the specific shape of the horizontal cross section of the central hole and the matching shaft section of the hinge shaft 21 and the lower support 22, as long as it can ensure that the lower support 22 and the hinge shaft 21 do not rotate relatively.
Based on the above embodiment, in order to avoid the lower support 22 from moving downwards under the action of gravity after the lower support 22 is sleeved on the hinge shaft 21, the lower portion of the mounting through hole of the shaft sleeve 1 is provided with a step, the hinge shaft 21 is fixed with the fixing seat 211, the hinge shaft 21 penetrates through the mounting through hole and is clamped on the step through the fixing seat 211, and the hinge shaft 21 can be prevented from moving downwards relative to the shaft sleeve 1 through the arrangement, so that the assembly between the hinge shaft 21 and the shaft sleeve 1 is safe, reliable, simple and feasible.
Optionally, the lower support 22 and the hinge shaft 21 are integrally formed, so that the number of parts in the hinge is further reduced, the assembly between the lower support 22 and the hinge shaft 21 is omitted, the problem of poor alignment between the axis of the central shaft of the lower support 22 and the axis of the hinge shaft 21 in the installation process can be avoided, the coaxiality between the central shaft of the lower support 22 and the axis of the hinge shaft 21 is better ensured, the installation error generated in the assembly process of the lower support 22 and the hinge shaft 21 is reduced, and the movement precision of the relative movement between the upper support 23 and the lower support 22 is improved.
Furthermore, the lower support 22 and the hinge shaft 21 are integrally formed, so that the relative rotation between the lower support 22 and the hinge shaft 21 can be limited, the relative movement between the lower support 22 and the hinge shaft 21 can be limited, and when the hinge is installed, the lower end face of the lower support 22 can be directly clamped on a step at the lower part of the installation through hole of the shaft sleeve 1, so that a fixed seat arranged on the hinge shaft 21 can be omitted, and the structure of the hinge is simpler.
Alternatively, the lower support 22 and the upper support 23 are made of plastic materials, so that the manufacturing cost of the lower support 22 and the upper support 23 can be reduced because the plastic materials are cheaper.
In order to reduce the abrasion between the lower support 22 and the upper support 23, in the embodiment of the invention, the lower support 22 and the upper support 23 are both made of metal materials, and the metal materials have better abrasion resistance, so that the abrasion between the matching surfaces of the upper support 23 and the lower support 22 can be reduced, and the lower support 22 and the upper support 23 are made of the same materials, so that the abrasion between the matching surfaces of the upper support 23 and the lower support 22 can be relatively uniform, and the movement precision of the upper support 23 along the spiral surface of the wedge-shaped tooth 221 of the lower support 22 is ensured.
Alternatively, the metal material of the lower support 22 and the upper support 23 may be any one of aluminum, aluminum alloy, and copper.
Further, the hinge for the refrigerator door further comprises a gasket 6, the gasket 6 is arranged between the lower portion of the hinge shaft 21 and the shaft sleeve 1, and since the shaft sleeve 1 can rotate in the process of opening or closing the refrigerator door and the hinge shaft 21 and the hinge base 5 are fixedly connected, the hinge shaft 21 is fixed in the rotating process of the shaft sleeve 1, and the shaft sleeve 1 rotates along with the refrigerator door, the gasket 6 is arranged between the shaft sleeve 1 and the hinge shaft 21, and the abrasion of the shaft sleeve 1 to the matching portion of the hinge shaft 21 can be reduced.
Illustratively, the above-mentioned spacer is disposed between the fixed base 211 and the step of the bushing 1 on the hinge shaft 21, and the fixed base 211 and the step contact each other, respectively. In addition, for the technical scheme that the lower support 22 and the hinge shaft 21 adopt an integral forming process, the gasket 6 is arranged between the lower part of the lower support 22 and the shaft sleeve 1, the upper part of the gasket 6 is in direct contact with the lower end surface of the lower support 22, and the lower part of the gasket 6 is in direct contact with the upper end surface of the step of the shaft sleeve 1.
Referring to fig. 8, the hinge base 5 is provided with a pillar 51, a central hole of the pillar 51 is a waist-shaped hole, a horizontal cross section of a matching shaft section of the lower portion of the hinge shaft 21 and the hinge base 5 is waist-shaped and is inserted into the waist-shaped hole, when in specific installation, the matching shaft section of the hinge shaft 21 and the hinge base 5 is directly inserted into the waist-shaped hole of the pillar 51, and the fixing mode is easy to realize, safe and reliable.
Of course, the center hole of the upright post 51 may also be a square hole, and then the shape of the horizontal cross section of the lower portion of the hinge shaft 21 and the matching shaft section of the hinge base is also square and is inserted into the square hole of the upright post 51, and when in specific installation, the matching shaft section of the hinge shaft 21 and the hinge base is directly inserted into the square hole of the upright post 51.
It should be noted that: the hinge seat 5 is provided with a threaded hole 52, the box body is provided with a threaded hole matched with the threaded hole, and when the box body is installed, a screw penetrates through the hinge seat 5, the threaded hole 52 and the threaded hole in the box body are formed in the hinge seat, and the hinge seat 5 and the box body can be fixed by screwing the screw. Similarly, the bottom of the shaft sleeve 1 is provided with a bottom plate 12, the bottom plate 12 and the shaft sleeve 1 are integrally formed, the bottom plate 12 is provided with a threaded hole 121, and the box door is provided with a threaded hole matched with the threaded hole, so that the shaft sleeve 1 and the box door are fixed.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in 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 (10)

1. A refrigerator, comprising:
the refrigerator comprises a refrigerator body, a storage space and a storage box, wherein the refrigerator body is internally provided with the storage space;
the box door is used for covering the storage space;
the hinge, in order to articulate box and chamber door, its characterized in that, the hinge includes:
the shaft sleeve is fixedly connected with the box door;
a mounting through hole formed on the shaft sleeve;
the transmission device is arranged in the mounting through hole; the transmission device includes:
the hinge shaft is fixed on the box body;
the lower support is fixed on the hinge shaft, and wedge-shaped teeth are arranged on the upper end face of the lower support;
the upper support is sleeved on the hinge shaft and positioned above the lower support, a wedge-shaped groove corresponding to the wedge-shaped teeth is formed in the lower end face of the upper support, the wedge-shaped teeth are composed of a top face and two side faces, at least one of the two side faces of each wedge-shaped tooth is a spiral face, and the spiral face is used for guiding the upper support to spirally ascend or spirally descend along the axis of the hinge shaft;
the guide part is used for limiting the rotation of the upper support along the inner side wall of the shaft sleeve, and the upper support is connected with the shaft sleeve in a sliding mode through the guide part;
the limiting block is fixedly arranged on the shaft sleeve;
and the elastic part is positioned below the limiting block and is abutted between the upper support and the limiting block.
2. The refrigerator as claimed in claim 1, wherein the lower support has a plurality of wedge-shaped teeth on its upper surface, the wedge-shaped teeth are uniformly distributed along the circumference of the lower support, the upper support has a plurality of wedge-shaped grooves on its lower surface, and the wedge-shaped teeth and the wedge-shaped grooves are equal in number.
3. The refrigerator according to claim 1, wherein the guide portion comprises:
the guide groove is formed on the inner side wall of the shaft sleeve, and the opening direction of the guide groove is consistent with the axial direction of the hinge shaft;
and the guide post is arranged on the upper support and is positioned in the guide groove.
4. The refrigerator of claim 1, wherein the hinge further comprises:
the locating pin, the locating slot has been seted up on the horizontal direction of stopper, set up on the lateral wall of axle sleeve with the locating hole that the locating slot corresponds, the locating pin passes the locating hole and is located in the locating slot.
5. The refrigerator according to claim 4, wherein the guide portion comprises:
the guide groove is formed on the inner side wall of the shaft sleeve, and the opening direction of the guide groove is consistent with the axial direction of the hinge shaft;
the guide protrusion is arranged on the side wall of the limiting block and is positioned in the guide groove.
6. The refrigerator of claim 1, wherein the hinge further comprises:
the lower part of the hinge shaft is fixedly connected with the box body through the hinge seat, the bottom of the limiting block is provided with a central hole, and the upper part of the hinge shaft is inserted into the central hole and is in clearance fit with the positioning hole.
7. The refrigerator as claimed in claim 3, wherein the guide posts are plural, the plural guide posts are uniformly distributed along a circumferential direction of the upper support, the plural guide grooves are plural, and the plural guide grooves are provided in one-to-one correspondence with the guide posts.
8. The refrigerator as claimed in claim 1, wherein the lower supporter and the hinge shaft are integrally formed.
9. The refrigerator of claim 1, wherein the lower supporter and the upper supporter are each made of a metal material.
10. The refrigerator of claim 6, wherein the hinge further comprises:
the hinge seat is arranged on the base, the center hole of the hinge seat is a waist-shaped hole, and the lower part of the hinge shaft and the horizontal section of the matched shaft section of the hinge seat are waist-shaped and inserted into the waist-shaped hole.
CN201911004677.1A 2019-10-21 2019-10-21 A kind of refrigerator Pending CN110748255A (en)

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CN110748255A true CN110748255A (en) 2020-02-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115247936A (en) * 2021-04-12 2022-10-28 海信（山东）冰箱有限公司 Refrigeration storage device
CN115479440A (en) * 2021-06-16 2022-12-16 青岛海尔电冰箱有限公司 Refrigerator with a door
RU2799679C1 (en) * 2020-03-20 2023-07-10 Хэфэй Хуалин Ко., Лтд. Hinge and refrigeration equipment

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US5138743A (en) * 1991-06-21 1992-08-18 White Consolidated Industries, Inc. Refrigerator door closing device
KR20060025945A (en) * 2004-09-18 2006-03-22 엘지전자 주식회사 Hinge-assembly for chest type refrigerator
CN2828266Y (en) * 2005-09-26 2006-10-18 海尔集团公司 Automatic return hinge on refrigerator door and refrigerator
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CN202970226U (en) * 2012-09-11 2013-06-05 海信容声(广东)冷柜有限公司 Automatic door-closing device and refrigerator and freezer comprising same
CN205189582U (en) * 2015-11-06 2016-04-27 合肥华凌股份有限公司 Automatic hinge and refrigerator reset
CN106050039A (en) * 2016-05-31 2016-10-26 青岛海尔股份有限公司 Door body hinge assembly for refrigerator and refrigerator comprising same
CN205980540U (en) * 2016-08-29 2017-02-22 海信（山东）冰箱有限公司 Thermal insulating door thermally insulated door and refrigeration plant for refrigeration plant
CN106761090A (en) * 2017-01-12 2017-05-31 温州盟宇五金制品有限公司 A kind of booster type refrigerator hinge

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Publication number Priority date Publication date Assignee Title
US5138743A (en) * 1991-06-21 1992-08-18 White Consolidated Industries, Inc. Refrigerator door closing device
KR20060025945A (en) * 2004-09-18 2006-03-22 엘지전자 주식회사 Hinge-assembly for chest type refrigerator
CN2828266Y (en) * 2005-09-26 2006-10-18 海尔集团公司 Automatic return hinge on refrigerator door and refrigerator
CN102720413A (en) * 2011-03-31 2012-10-10 比亚迪股份有限公司 Automatic return door hinge and refrigerator using same
CN202970226U (en) * 2012-09-11 2013-06-05 海信容声(广东)冷柜有限公司 Automatic door-closing device and refrigerator and freezer comprising same
CN205189582U (en) * 2015-11-06 2016-04-27 合肥华凌股份有限公司 Automatic hinge and refrigerator reset
CN106050039A (en) * 2016-05-31 2016-10-26 青岛海尔股份有限公司 Door body hinge assembly for refrigerator and refrigerator comprising same
CN205980540U (en) * 2016-08-29 2017-02-22 海信（山东）冰箱有限公司 Thermal insulating door thermally insulated door and refrigeration plant for refrigeration plant
CN106761090A (en) * 2017-01-12 2017-05-31 温州盟宇五金制品有限公司 A kind of booster type refrigerator hinge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2799679C1 (en) * 2020-03-20 2023-07-10 Хэфэй Хуалин Ко., Лтд. Hinge and refrigeration equipment
CN115247936A (en) * 2021-04-12 2022-10-28 海信（山东）冰箱有限公司 Refrigeration storage device
CN115479440A (en) * 2021-06-16 2022-12-16 青岛海尔电冰箱有限公司 Refrigerator with a door
CN115479440B (en) * 2021-06-16 2024-04-19 青岛海尔制冷电器有限公司 Refrigerator with a refrigerator body

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Application publication date: 20200204