CN220133752U

CN220133752U - Hinge and opening and closing device

Info

Publication number: CN220133752U
Application number: CN202321604898.4U
Authority: CN
Inventors: 梁本磊; 胡良进; 赵鹏
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2022-12-23
Filing date: 2023-06-20
Publication date: 2023-12-05
Anticipated expiration: 2033-06-20
Also published as: CN220221829U; CN118148456A; CN221002382U; CN220101003U

Abstract

The application discloses a hinge, which is used for connecting a door body and a box body of opening and closing equipment, wherein the hinge comprises a first hinge seat and a second hinge seat, the first hinge seat comprises a first hinge part and a first connecting part, the first hinge part and the first connecting part are integrally formed, and the first connecting part is used for connecting the box body; the second hinge seat comprises a second hinge part and a second connecting part, the second hinge part and the second connecting part are integrally formed, the second hinge part is rotationally connected with the first hinge seat, and the second connecting part is used for connecting the door body. The hinge provided by the application is connected with the box body through the first hinge seat and is connected with the door body through the second hinge seat, the first hinge seat and the second hinge seat are of an integrated structure, fewer parts are required to be assembled during assembly, the assembly efficiency is improved, the integrated structure has no assembly gap and high overall strength, and the service life of the hinge is further prolonged.

Description

Hinge and opening and closing device

Technical Field

The application relates to the technical field of electric appliances, in particular to a hinge and opening and closing equipment.

Background

This section provides merely background information related to the present disclosure and is not necessarily prior art.

With the progress of society, the refrigerator utilization rate is higher and higher. As global sea prices continue to rise, the amount of packing of goods becomes more important. At present, all refrigerator enterprises seek to improve the boxing amount of the refrigerator.

In the related art, the hinge of the refrigerator is generally complex in structure, a large amount of working hours are required to be consumed in assembly, the assembly efficiency is low, the production cost is high, and the service life is shortened due to the complex structure.

Content of the application

The application aims to at least solve the problem of low assembly efficiency of the existing hinge. The aim is achieved by the following technical scheme:

a first aspect of the present application proposes a hinge for connecting a door body and a case body of an opening and closing apparatus, comprising:

the first hinge seat comprises a first hinge part and a first connecting part, the first hinge part and the first connecting part are integrally formed, and the first connecting part is used for connecting the box body;

the second hinge seat comprises a second hinge part and a second connecting part, wherein the second hinge part is integrally formed with the second connecting part, the second hinge part is rotationally connected with the first hinge seat, and the second connecting part is used for connecting the door body.

The hinge provided by the application is connected with the box body through the first hinge seat and is connected with the door body through the second hinge seat, the first hinge seat and the second hinge seat are of an integrated structure, fewer parts are required to be assembled during assembly, the assembly efficiency is improved, the integrated structure has no assembly gap and high overall strength, and the service life of the hinge is further prolonged.

In addition, the hinge according to the application may have the following additional technical features:

in some embodiments of the present application, the first connection portion includes a first clamping plate and a second clamping plate, the first clamping plate is used for being clamped in a clamping groove of the box body, and the second clamping plate is provided with a first mounting hole, and the first mounting hole is used for being matched with a fixing piece to enable the second clamping plate to be connected with an outer side face of the box body.

In some embodiments of the present application, the number of the first mounting holes is plural, and the plural first mounting holes are spaced apart.

In some embodiments of the present application, the plurality of first mounting holes are spaced apart from each other along a first direction, and the extension direction of the rotation axes of the first hinge part and the second hinge part is the same as the first direction.

In some embodiments of the present application, the second clamping plates are respectively provided with first reinforcing ribs at two sides of any first mounting holes.

In some embodiments of the present application, the second connecting portion includes a third clamping plate, and the third clamping plate is provided with a second mounting hole, and the second mounting hole is used for matching with a fixing piece, so that the third clamping plate is connected with the door body.

In some embodiments of the present application, the number of the second mounting holes is plural, and the plural second mounting holes are spaced apart.

In some embodiments of the present application, the plurality of second mounting holes have at least three second mounting holes, and a connection line of hole centers of the three second mounting holes is triangular.

In some embodiments of the application, the third clamping plate is provided with a second reinforcing rib.

In some embodiments of the application, the second hinge base is provided with a hollowed-out portion, and the hollowed-out portion is disposed on the second reinforcing rib.

In some embodiments of the present application, the number of the second hinge bases is two, and the two second hinge bases are respectively rotatably connected to two ends of the first hinge base along the first direction, and the extension directions of the rotation axes of the first hinge portion and the second hinge portion are the same as the first direction.

A second aspect of the present application proposes an opening and closing apparatus, comprising:

a door body;

a case;

the hinge is provided in the first aspect of the present application, wherein the first connecting portion of the hinge is connected with the box body, and the second connecting portion of the hinge is connected with the door body.

According to the opening and closing equipment provided by the second aspect of the application, the opening and closing of the door body is realized through the first hinge seat and the second hinge seat which are integrally formed, the integrally formed structure of the hinge can reduce the assembly workload of the opening and closing equipment, improve the assembly efficiency, reduce parts and further prolong the service life of the hinge.

In some embodiments of the application, the opening and closing device is a refrigerator.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a schematic structural view of an opening and closing apparatus according to an embodiment of the present application;

FIG. 2 is a schematic view illustrating the assembly of the first hinge base of FIG. 1 to a case;

FIG. 3 is a split schematic view of the hinge of FIG. 1;

FIG. 4 is a disassembled view of a first hinge base of the hinge of FIG. 3;

FIG. 5 is a disassembled view of a second hinge base of the hinge of FIG. 3;

FIG. 6 is a schematic view showing the assembly of the second hinge base of FIG. 1 to the case;

Fig. 7 is a schematic structural diagram of an opening and closing apparatus according to another embodiment of the present application;

FIG. 8 is a schematic view illustrating the assembly of the first hinge base of FIG. 7 to a case;

FIG. 9 is a split schematic view of the hinge of FIG. 7;

FIG. 10 is a disassembled view of a first hinge base of the hinge of FIG. 9;

FIG. 11 is a disassembled view of a second hinge base of the hinge of FIG. 9;

FIG. 12 is a schematic view illustrating the assembly of the second hinge base of FIG. 7 to the case;

FIG. 13 is a split schematic view of a hinge according to an embodiment of the present application;

FIG. 14 is a schematic view of a hinge according to an embodiment of the present application;

FIG. 15 is a schematic view of the hinge of FIG. 14 assembled to a housing;

FIG. 16 is a schematic view of a second hinge base according to an embodiment of the present application;

100. a case; 101. an opening; 102. a first opening; 103. a second opening; 104. a mounting cavity; 105. a clamping groove; 106. the second limit bar;

200. a door body;

300. a hinge; 310. a first hinge base; 311. a first clamping plate; 312. a second clamping plate; 313. a first mounting hole; 314. a first reinforcing rib; 315. a first accommodation chamber; 316. a guide groove; 317. a limiting block; 318. a clamping groove; 320. a second hinge base; 321. a third clamping plate; 322. a second mounting hole; 323. a second reinforcing rib; 324. a first limit bar; 325. a second accommodation chamber; 326. a hollowed-out part; 327. an abutting portion; 330. a fixed shaft; 340. a rotating shaft; 341. a conducting bar; 350. a driving member; 351. a chute; 352. a guide rail; 360. an elastic member; 370. locking the oil cap; 380. a reinforcing plate; 390. and a limiting shaft.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

According to an embodiment of the present application, as shown in fig. 1 to 6, fig. 1 is a schematic structural diagram of an opening and closing apparatus according to an embodiment of the present application, and fig. 2 is an assembly schematic diagram of a first hinge base on a case in fig. 1. Referring to fig. 1 and 2, the opening and closing apparatus includes a case 100, a door 200 and a hinge 300, the case 100 is provided with an opening 101, an outer sidewall of the case 100 is provided with a mounting cavity 104 recessed toward the inside of the case 100, the mounting cavity 104 is provided with a first opening 102 facing the outside of the case 100, and a clamping groove 105 is provided on a side of the mounting cavity 104 away from the first opening 102; the door body 200 is connected to the opening of the box body 100 in an openable manner through the hinge 300, the hinge 300 comprises a first hinge seat 310 and a second hinge seat 320 which are connected in a rotating manner, the second hinge seat 320 is connected to the side wall of the door body 200, the hinge ends of the first hinge seat 310 and the second hinge seat 320 are arranged in the mounting cavity 104, a first clamping plate 311 and a second clamping plate 312 are arranged on one side, opposite to the second hinge seat 320, of the hinge end of the first hinge seat 310, the first clamping plate 311 is embedded in the clamping groove 105, and the second clamping plate 312 is connected to the outer side wall of the door body 200.

According to the opening and closing device provided by the embodiment of the application, the hinge 300 for connecting the door body 200 and the box body 100 comprises the first hinge seat 310 and the second hinge seat 320 which are rotatably connected, wherein the first hinge seat 310 is connected to the outer surface of the door body 200, and the hinge ends of the first hinge seat 310 and the second hinge seat 320 are arranged in the mounting cavity 104, and the mounting cavity 104 is recessed from the outer side wall of the box body 100 to the inside of the box body 100, so that the size of the hinge 300 protruding out of the box body 100 can be reduced to a certain extent, the gap between a packing box and the device for packaging equipment is reduced, the packing quantity of products is improved, the freight of the products is reduced, and the opening and closing device has good practicability.

The case 100 may be provided with only one opening 101 or a plurality of openings 101, and in the case of providing a plurality of openings 101 or a plurality of doors 200, a part of the doors 200 may be connected to the corresponding opening of the case 100 by the above-described assembly method, and the doors 200 that do not affect the amount of the case may be assembled by the assembly method of the related art, which is not limited herein.

The opening of the refrigerator is usually formed at the top of the product, and if the opening is formed at other positions, the opening is correspondingly adjusted, and details are omitted here.

Fig. 3 is a schematic diagram illustrating the hinge in fig. 1, fig. 4 is a schematic diagram illustrating the hinge in fig. 3, fig. 5 is a schematic diagram illustrating the hinge in fig. 3, and fig. 6 is a schematic diagram illustrating the assembly of the hinge in fig. 1 on a case. Referring to fig. 1, 3 and 5, the second hinge base 320 may include a third fastening plate 321, two second mounting holes 322 may be disposed on the third fastening plate 321, and the third fastening plate 321 is connected to the door body 200 through bolts disposed in the corresponding second mounting holes 322, so as to realize assembly of the second hinge base 320 and the door body 200.

The second mounting holes 322 of the embodiment of the present application may be vertically spaced, and only two bolts are required to assemble the third clamping plate 321 to the door body 200. In other embodiments, the second mounting holes 322 may be disposed at intervals in the horizontal direction, or a plurality of second mounting holes 322 may be disposed, which is not limited herein.

Referring to fig. 1, 3 and 5, the hinge end of the second hinge base 320 may be cylindrical, integrally formed with the third clamping plate 321, wherein one side of the third clamping plate 321 facing the door body 200 is a plane, and a side of the third clamping plate 321 facing away from the door body 200 may be provided with a plurality of reinforcing ribs, which may be vertically disposed and extend from the third clamping plate 321 to a circumferential surface of the hinge end of the second hinge base 320, so as to improve the strength of the second hinge base 320 and improve the service life of the second hinge base 320.

Referring to fig. 1, 3, 5 and 6, a first limiting bar 324 may be disposed on an outer circumferential surface of the hinge end of the second hinge base 320, and the mounting cavity 104 may be provided with a second limiting bar 106 on a side wall opposite to the first opening 102 for limiting rotation of the first limiting bar 324, that is, the rotation range of the first limiting bar 324 may be limited by the arrangement of the second limiting bar 106, and thus, the rotation angle of the second hinge base 320 may be limited, so that the opening degree of the door body 200 may be controlled.

The second limiting bar 106 and the center line of the hinge end of the second hinge base 320 may be located on the same horizontal plane, so that the opening degree of the door body 200 may be controlled within 90 °. Of course, the position of the second limiting bar 106 may be set according to practical requirements, which is not limited herein.

Referring to fig. 3 and 5, the hinge end of the second hinge base 320 is provided with a second receiving cavity 325, and the second receiving cavity 325 may be provided in a cylindrical shape, and the second receiving cavity 325 is opened toward one axial end of the first hinge base 310.

Referring to fig. 3 and fig. 4, the hinge end of the first hinge base 310 may also be cylindrical, and the first clamping plate 311 and the second clamping plate 312 may be disposed on two sides of the hinge end of the first hinge base 310, for example, the first clamping plate 311 may be disposed on the hinge end of the first hinge base 310 along a horizontal direction, and the second clamping plate 312 may be disposed on the hinge end of the first hinge base 310 along a vertical direction, that is, the first clamping plate 311 and the second clamping plate 312 are disposed vertically, which may, of course, be disposed at other angles. In addition, the first clamping plate 311 and the second clamping plate 312 may be integrally formed with the hinge end of the first hinge base 310. The second clamping plate 312 may be larger than the first clamping plate 311 in size, so as to facilitate assembly of the first clamping plate 311 and the second clamping plate 312 on the mounting cavity 104, two first mounting holes 313 are formed in the second clamping plate 312, and the second clamping plate 312 is connected to the outer side surface of the box 100 through bolts disposed in the corresponding first mounting holes 313. The first mounting hole 313 may have a oval shape, so that the mounting position of the first hinge base 310 can be conveniently adjusted, and the assembly of the hinge 300 on the apparatus can be conveniently performed.

Because the hinge ends of the first hinge base 310 and the second hinge base 320 are both cylindrical, the mounting cavity 104 on the door body may be substantially semicircular in a consistent cylindrical shape.

Referring to fig. 1, 3 and 4, the first mounting holes 313 of the embodiment of the present application may be spaced apart in a horizontal direction, and only two bolts may be required to assemble and connect the second clamping plate 312 to the case 100. In other embodiments, the first mounting holes 313 may be disposed at intervals in the horizontal direction, or a plurality of first mounting holes 313 may be disposed, without limitation.

It should be noted that, in the embodiment of the present application, the first mounting hole 313 and the second mounting hole 322 are counter sunk holes, so as to avoid the influence of the protruding surface of the corresponding bolt on the packing amount of the product.

In the embodiment of the application, a plurality of reinforcing ribs are disposed on a side of the second clamping plate 312 facing away from the first clamping plate 311 (i.e. an outer side of the second clamping plate 312). The plurality of reinforcing ribs may be disposed vertically and extend from the second clamping plate 312 to the circumferential surface of the hinge end of the first hinge base 310 to improve the strength of the first hinge base 310 and increase the service life of the first hinge base 310.

Referring to fig. 1, 3 and 4, the hinge end of the first hinge base 310 is provided with a first accommodating cavity 315, the first accommodating cavity 315 may be configured in a cylindrical shape, the first accommodating cavity 315 is opened toward one axial end of the second hinge base 320, that is, the first accommodating cavity 315 and the second accommodating cavity 325 are oppositely disposed, and two opposite ends are opened, where opposite ends respectively support against two ends of the mounting groove.

Referring to fig. 1, 3 and 4, the first accommodating cavity 315 and the second accommodating cavity 325 are relatively communicated, and can be connected by clamping. The hinge 300 further includes a fixed shaft 330, a rotating shaft 340, a driving member 350, and an elastic member 360, where the fixed shaft 330 is coaxially and fixedly disposed in the first accommodating cavity 315, one end of the rotating shaft 340 is coaxially and fixedly disposed in the second accommodating cavity 325, the other end of the rotating shaft 340 extends into the first accommodating cavity 315, the other end of the rotating shaft 340 is rotatably sleeved on the fixed shaft 330, the surface of the rotating shaft 340 is provided with a plurality of guide bars 341, the plurality of guide bars 341 are all disposed along an axial direction parallel to the rotating shaft 340, the driving member 350 is disposed in the first accommodating cavity 315, the driving member 350 is movably sleeved on the fixed shaft 330, a plurality of sliding grooves 351 are disposed at intervals at one end of the driving member 350 facing the rotating shaft 340, one side of the plurality of sliding grooves 351 is inclined, the guide bars 341 and the sliding grooves 351 are correspondingly disposed, the ends of the guide bars 341 act on the inclined surfaces of the corresponding sliding grooves 351 to push the driving member 350 to move on the fixed shaft 330, the elastic member 360 is disposed in the first accommodating cavity 330, and the elastic member 360 is sleeved on the fixed shaft 330, the elastic member 360 is disposed between one side of the first accommodating cavity 315 far from the second accommodating cavity 325 and the driving member 350.

In the hinge 300 provided by the embodiment of the application, when the door body 200 drives the second hinge seat 320 to rotate relative to the first hinge seat 310 during closing, the guide bar 341 on the second hinge seat 320 acts on the inclined surface of the corresponding sliding groove 351 to push the driving member 350 to move on the fixed shaft 330, so as to compress the elastic member 360; when the door 200 is opened, the door 200 is driven to reset under the reset action of the elastic member 360, so as to assist in closing the door 200.

Because the inclined surface of the driving member 350 cooperates with the guide bar 341 to push the driving member 350 to move on the fixed shaft 330 and compress the elastic member 360, the elastic member 360 only receives the axial pressure of the fixed shaft 330 during the opening and closing process of the hinge 300, i.e. the elastic member 360 only reciprocates along the axial direction of the fixed shaft 330 and does not rotate, so that the resistance of the elastic member 360 during closing the door can be reduced. Specifically: when the door is closed, the elastic member 360 is in a compressed state, and the door body 200 is closed by gravity; in the opening process of the door body 200, the elastic force of the elastic piece 360 is continuously released, and the door is opened in a boosting way; when the door body 200 is opened, the door body 200 is hovered by friction force between the driving block and the rotating shaft; in the closing process, the elastic member 360 is continuously compressed, so that the gravity effect of the descending door body 200 is reduced, and the door body 200 of the user is lifted.

One end of the fixing shaft 330 of the embodiment of the present application may be fixed to one end of the first receiving cavity 315 far from the second receiving cavity 325, a support plate may be disposed in the first receiving cavity 315 to further fixedly support the fixing shaft 330, one end of the rotating shaft may be rotatably disposed at one end of the second receiving cavity 325 far from the first receiving cavity 315 through a bearing, and a support plate may be disposed in the second receiving cavity 325 to further support the rotating shaft.

Referring to fig. 1, 3 and 4, the inner sidewall of the first receiving chamber 315 may be provided with a guide groove 316, and a guide rail 352 is provided on the circumferential surface of the driving member 350, and the guide rail 352 is slidably disposed in the guide groove 316. During the movement of the driving member 350 on the fixed shaft 330, the guide rail 352 of the driving member 350 slides in the guide groove 316 to guide the movement of the driving member 350, preventing the driving member 350 from rotating.

Referring to fig. 1, 3 and 4, the hinge 300 according to the embodiment of the present application further includes an oil locking cap 370, wherein the oil locking cap 370 is movably sleeved on the fixed shaft 330, the oil locking cap 370 is disposed between the elastic member 360 and the driving member 350, and the circumferential surface of the oil locking cap 370 abuts against the inner wall of the first accommodating cavity 315, so that the first accommodating cavity 315 can be divided into two parts, and the lubricant on the rotating shaft, the driving member 350 and the elastic member 360 is distributed on the moving parts as much as possible, so that the hinge 300 is smoothly opened and closed.

Referring to fig. 1, 3, 4 and 5, the hinge 300 according to the embodiment of the present application further includes a reinforcing plate 380, where the reinforcing plate 380 may be disposed on a side of the second hinge base 320 facing away from the first hinge base 310 by means of adhesion, screws, welding, etc., and the reinforcing plate 380 is tightly attached to a side wall of the mounting cavity 104, so as to reinforce the structure of the second hinge base 320 and improve the service life of the hinge 300.

Further, referring to fig. 1, 3, 4 and 5, a stopper 317 may be disposed on an outer circumferential surface of the hinge end of the first hinge base 310, a slot 318 is formed in the stopper 317, and a stopper shaft 390 is disposed on a side of the third clamping plate 321 of the second hinge base 320 facing the first hinge base 310, and the stopper shaft 390 may be detachably mounted on the third clamping plate 321 by a threaded connection. During transportation, the limiting shaft 390 is inserted into the clamping groove 318 on the limiting block 317, so that the elastic member 360 of the hinge 300 is in a fixed compression state, and the elastic member 360 of the hinge 300 is prevented from being deformed under the action of external force; after the hinge 300 is assembled and used, the limiting shaft 390 can be removed from the third clamping plate 321, so that the hinge 300 can be opened and closed normally, and the opening and closing device can operate normally.

In summary, in the opening and closing apparatus according to the embodiment of the present application, the hinge ends of the first hinge seat 310 and the second hinge seat 320 of the hinge 300 for connecting the door 200 and the box 100 are disposed in the installation cavity 104, and the installation cavity 104 is recessed from the outer side wall of the box 100 to the interior of the box 100, so that the size of the hinge 300 protruding out of the box 100 can be reduced to a certain extent, so that the gap between the packaging box and the apparatus for packaging apparatus is reduced, the packing amount of the product is increased, and the freight of the product is reduced; in addition, the elastic member 360 of the hinge 300 only performs compression motion, but does not perform rotation motion, so that the resistance of the elastic member 360 during door closing can be reduced, the user experience is improved, and the practicality is good.

According to an embodiment of the present application, as shown in fig. 7 to 12, fig. 1 is a schematic structural diagram of an opening and closing apparatus according to an embodiment of the present application, and fig. 2 is an assembly schematic diagram of a first hinge base on a case in fig. 1. Referring to fig. 1 and 2, the opening and closing apparatus includes a case 100, a door 200 and a hinge 300, the case 100 is provided with an opening 101, an outer sidewall of the case 100 is provided with a mounting cavity 104 recessed toward an inside of the case 100, the mounting cavity 104 is provided with a first opening 102 facing the opening 101 and a second opening 103 facing an outside of the case 100, and a side of the mounting cavity 104 away from the first opening 102 is provided with a clip groove 105; the door body 200 is connected to the opening of the box body 100 in an openable manner through the hinge 300, the hinge 300 comprises a first hinge seat 310 and a second hinge seat 320 which are connected in a rotating manner, the second hinge seat 320 is connected to the side wall of the door body 200, the hinge ends of the first hinge seat 310 and the second hinge seat 320 are arranged in the mounting cavity 104, a first clamping plate 311 and a second clamping plate 312 are arranged on one side, opposite to the second hinge seat 320, of the hinge end of the first hinge seat 310, the first clamping plate 311 is embedded in the clamping groove 105, and the second clamping plate 312 is connected to the outer side wall of the door body 200.

The case 100 may be provided with only one opening or a plurality of openings, and in the case of providing a plurality of openings, a plurality of door bodies 200 may be provided, and a part of the door bodies 200 may be connected to the corresponding opening of the case 100 by the above-described assembly method, and the door bodies 200 that do not affect the amount of the case may also be assembled by the related art, which is not limited herein.

Referring to fig. 1, 3 and 5, the hinge end of the second hinge base 320 may be cylindrical, integrally formed with the third clamping plate 321, one side of the third clamping plate 321 facing the door body 200 is a plane, a side surface of the third clamping plate 321 facing away from the door body 200 may be provided with a plurality of second reinforcing ribs 323, the second reinforcing ribs 323 may be vertically disposed, and the second reinforcing ribs 323 may extend from the third clamping plate 321 to the circumferential surface of the hinge end of the second hinge base 320, so as to improve the strength of the second hinge base 320 and improve the service life of the second hinge base 320.

Referring to fig. 1, 3, 5 and 6, a first limiting bar 324 may be disposed on an outer circumferential surface of the hinge end of the second hinge base 320, and the mounting cavity 104 may be provided with a second limiting bar 106 on a side wall opposite to the second opening 103 for limiting rotation of the first limiting bar 324, i.e., the rotation range of the first limiting bar 324 may be limited by the arrangement of the second limiting bar 106, and thus, the rotation angle of the second hinge base 320 may be limited, thereby controlling the opening of the door body 200.

Referring to fig. 3 and fig. 4, the hinge end of the first hinge base 310 may also be cylindrical, and the first clamping plate 311 and the second clamping plate 312 may be disposed on two sides of the hinge end of the first hinge base 310, and the first clamping plate 311 and the second clamping plate 312 may be integrally formed with the hinge end of the first hinge base 310. The vertical dimension of the second clamping plate 312 may be greater than the vertical dimension of the first clamping plate 311, so as to facilitate the assembly of the first clamping plate 311 and the second clamping plate 312 on the mounting cavity 104, two first mounting holes 313 are provided on the second clamping plate 312, and the second clamping plate 312 is connected to the outer side surface of the box 100 through bolts provided in the corresponding first mounting holes 313. The first mounting hole 313 may have a oval shape, so that the mounting position of the first hinge base 310 can be conveniently adjusted, and the assembly of the hinge 300 on the apparatus can be conveniently performed.

Referring to fig. 1, 3 and 4, a plurality of first reinforcing ribs 314 are disposed on a side of the second clamping plate 312 facing away from the first clamping plate 311 (i.e. an outer side of the second clamping plate 312). The first reinforcing rib 314 may be disposed vertically, and the first reinforcing rib 314 may extend from the second clamping plate 312 to the circumferential surface of the hinge end of the hinge base, so as to improve the strength of the first hinge base 310 and improve the service life of the first hinge base 310.

Referring to fig. 1, 3 and 4, the first receiving chamber 315 and the second receiving chamber 325 are in relative communication and rotatably disposed by means of threads. The hinge 300 further includes a fixed shaft 330, a rotating shaft 340, a driving member 350, and an elastic member 360, where the fixed shaft 330 is coaxially and fixedly disposed in the first accommodating cavity 315, one end of the rotating shaft 340 is coaxially and fixedly disposed in the second accommodating cavity 325, the other end of the rotating shaft 340 extends into the first accommodating cavity 315, the other end of the rotating shaft 340 is rotatably sleeved on the fixed shaft 330, the surface of the rotating shaft 340 is provided with a plurality of guide bars 341, the plurality of guide bars 341 are all disposed along an axial direction parallel to the rotating shaft 340, the driving member 350 is disposed in the first accommodating cavity 315, the driving member 350 is movably sleeved on the fixed shaft 330, a plurality of sliding grooves 351 are disposed at intervals at one end of the driving member 350 facing the rotating shaft 340, one side of the plurality of sliding grooves 351 is inclined, the guide bars 341 and the sliding grooves 351 are correspondingly disposed, the ends of the guide bars 341 act on the inclined surfaces of the corresponding sliding grooves 351 to push the driving member 350 to move on the fixed shaft 330, the elastic member 360 is disposed in the first accommodating cavity 330, and the elastic member 360 is sleeved on the fixed shaft 330, the elastic member 360 is disposed between one side of the first accommodating cavity 315 far from the second accommodating cavity 325 and the driving member 350.

As shown in fig. 13 to 15, according to an embodiment of the present application, the present application provides a hinge for connecting a door body 200 and a case body 100 of an opening and closing apparatus, the hinge including a first hinge housing including a first hinge part integrally formed with a first connection part and a second hinge housing for connecting the case body 100; the second hinge seat includes a second hinge part and a second connection part integrally formed with each other, the second hinge part being rotatably connected with the first hinge seat 310, the second connection part being for connecting the door body 200.

The hinge provided by the application is connected with the box body 100 through the first hinge seat and is connected with the door body 200 through the second hinge seat, the first hinge seat and the second hinge seat are of an integrated structure, fewer parts need to be assembled during assembly, the assembly efficiency is improved, the integrated structure has no assembly gap and high overall strength, and the service life of the hinge is further prolonged.

In some embodiments of the present application, the first connection portion includes a first clamping plate 311 and a second clamping plate 312, the first clamping plate 311 is used for being clamped in the clamping groove 105 of the box 100, the second clamping plate 312 is provided with a first mounting hole 313, and the first mounting hole 313 is used for being matched with a fixing piece to connect the second clamping plate 312 with the outer side surface of the box 100. The shape of the first clamping plate 311 is matched with the clamping hook on the box body 100, and the first clamping plate can be a flat plate or an L-shaped plate, and is specifically designed according to the clamping hook structure. The first mounting hole 313 may be a bolt hole, a screw hole, or a through hole, and is matched with a fixing member, that is, a bolt, a screw, or the like to fix with the outer side surface of the case 100, and a hole pattern adapted to the fixing member should be provided on the outer side surface of the case 100.

In some embodiments of the present application, the number of the first mounting holes 313 is plural, and the plural first mounting holes 313 are spaced apart. The first mounting holes 313 may be provided in plurality to enhance the connection reliability between the second clamping plate 312 and the case 100, and the first mounting holes 313 may be spaced apart along the rotation axis direction of the first hinge base 310, and may be provided in a plurality of rows of the first mounting holes 313 along a direction perpendicular to the rotation axis direction of the first hinge base 310 to further enhance the connection reliability between the second clamping plate 312 and the case 100. The connection lines of the plurality of first mounting holes 313 may be triangular, so that the second clamping plate 312 can be acted by the fixing member in a plurality of directions, and the fastening connection between the second clamping plate 312 and the box body 100 is realized.

In some embodiments of the present application, the plurality of first mounting holes 313 are spaced apart from each other along a first direction, which is the same as the extension direction of the rotation axes of the first hinge part and the second hinge part. The first hinge portion and the second hinge portion are rotatably connected, and the plurality of first mounting holes 313 are arranged along the extending direction of the rotation axis of the first mounting holes, so that connection reliability between the second clamping plate 312 and the box body 100 can be enhanced, and damage to equipment caused by displacement of the hinge during use is avoided.

In some embodiments of the present application, the second clamping plates 312 are provided with first reinforcing ribs 314 on both sides of any of the first mounting holes 313, respectively. The first reinforcing ribs 314 may be disposed at the free positions of the second clamping plate 312, i.e. the area where the first mounting holes 313 are not disposed, in this embodiment, the first reinforcing ribs 314 are disposed at two sides of the first mounting holes 313, so as to strengthen the structural strength of the second clamping plate 312, avoid the stress deformation thereof, and improve the hinge life. The first reinforcing rib 314 may be a bar type and may be vertically connected to the second clamping plate 312, or may have a D-shaped cross section, and the structural strength of the second clamping plate 312 may be improved. When the second clamping plate 312 is provided with a plurality of first mounting holes 313, one first reinforcing rib 314 may be disposed in two first mounting holes 313, and one reinforcing rib may be disposed on the outer side of the first mounting hole 313 at the outermost end along the first direction, so as to reinforce the structure of the second clamping plate 312. The extending direction of the first reinforcing rib 314 may be perpendicular to the rotation axes of the first hinge portion and the second hinge portion, so as to avoid the second clamping plate 312 from being broken transversely due to stress or fatigue.

In some embodiments of the present application, the second connection portion includes a third clamping plate 321, the third clamping plate 321 is provided with a second mounting hole 322, and the second mounting hole 322 is used to cooperate with the fixing member to connect the third clamping plate 321 with the door body 200. The third clamping plate 321 is used for connecting the hinge with the door body 200, the shape of the third clamping plate 321 can be a straight plate type or an L-shaped plate, the third clamping plate 321 can be provided with a second mounting hole 322 according to the connection position on the door plate, the second mounting hole 322 can be a bolt hole or a through hole, and the second mounting hole 322 is matched with a fixing piece, namely, a bolt or a screw to realize the connection and the fixation of the hinge with the door body 200, and the door body 200 is also provided with a hole type matched with the second mounting hole 322.

In some embodiments of the present application, the number of the second mounting holes 322 is plural, and the plural second mounting holes 322 are spaced apart. A plurality of second mounting holes 322 may be formed in the third clamping plate 321 to enhance the reliability of connection between the third clamping plate 321 and the door body 200, and the second mounting holes 322 may be formed along a longitudinal direction of the third clamping plate 321, that is, a direction perpendicular to a rotation axis of the first hinge portion and the second hinge portion, and may further be formed along a rotation axis of the first hinge portion and the second hinge portion to further enhance the reliability of connection between the third clamping plate 321 and the door body 200.

In some embodiments of the present application, the plurality of second mounting holes 322 has at least three second mounting holes 322 with triangular connecting lines for mounting. The second mounting holes 322 are arranged in a triangular shape, so that the third clamping plate 321 can be subjected to the acting force of the fixing piece in the second mounting holes 322 in multiple directions and angles, the third clamping plate 321 can be tightly connected with the door body 200, and the shaking phenomenon of the door body 200 in the opening and closing process is avoided.

In some embodiments of the present application, the third clamping plate 321 is provided with a second reinforcing rib 323. The second reinforcing rib 323 can be arranged in the area of the third clamping plate 321, where the second mounting hole 322 is not arranged, the cross section of the second reinforcing rib 323 can be rectangular or D-shaped, the second reinforcing rib 323 can be arranged according to actual needs, and the second reinforcing rib 323 can extend along the direction perpendicular to the rotation axes of the first hinge part and the second hinge part, so that the structure of the third clamping plate 321 is reinforced, and the third clamping plate 321 is prevented from being stressed or being broken transversely due to fatigue. The second reinforcing rib 323 may be disposed along the length direction of the third clamping plate 321 according to actual needs, one end portion of the second reinforcing rib 323 may be directly connected with the first hinge portion, and the other end portion of the second reinforcing rib 323 may be provided with a rounded corner to enhance strength and avoid stress concentration, and similarly, the first reinforcing rib 314 may be disposed with a similar structure as that of the second reinforcing rib 323.

In some embodiments of the present application, the second hinge base is provided with a hollowed portion 326, and the hollowed portion 326 is disposed on the second reinforcing rib 323. The second reinforcing rib 323 can be provided with a plurality of rectangular or square holes to realize hollowed-out, so that the weight of the third clamping plate 321 is reduced, and meanwhile, the strength of the third clamping plate 321 is improved, the door body 200 is easier to open and close, and the service life of the hinge is longer. Specifically, the hollowed-out portion 326 may be disposed on the second reinforcing ribs 323 located on two sides of the third clamping plate 321 and on the outer end surface of the first hinge portion, so as to avoid the hollowed-out portion from affecting the performance of other portions.

In some embodiments of the present application, the number of the second hinge bases 320 is two, and the two second hinge bases 320 are rotatably connected to two ends of the first hinge base 310 in the first direction, and the first direction is the same as the extending direction of the rotation axes of the first hinge portion and the second hinge portion. The two ends of the first hinge base 310 may be respectively provided with a second hinge base 320, so that the door body 200 is connected with more second hinge bases 320, and the stability of the door body 200 when being opened is improved. Specifically, two sets of structures rotatably connected between the first hinge base 310 and the second hinge base 320 are provided at both ends of the rotation axis of the first hinge base 310, respectively, so that the second hinge base 320 at both sides can be rotatably connected with the first hinge base 310.

In some embodiments of the present application, a plurality of sliding grooves 351 are disposed at intervals at one end of the driving member 350 facing the rotating shaft 340, one side surface of the sliding grooves 351 is an inclined surface, an abutting portion 327 corresponding to the sliding grooves 351 is disposed inside the second accommodating cavity 325, the abutting portion 327 has an abutting surface corresponding to the inclined surface of the sliding groove 351, the abutting portion 327 and the sliding groove 351 are disposed in a one-to-one correspondence, the abutting portion 327 acts on the inclined surface of the corresponding sliding groove 351 to push the driving member 350 to move on the fixed shaft 330, the elastic member 360 is disposed in the first accommodating cavity 315, the elastic member 360 is sleeved on the fixed shaft 330, and the elastic member 360 is disposed between one side of the first accommodating cavity 315 away from the second accommodating cavity 325 and the driving member 350.

In the hinge 300 provided by the embodiment of the application, when the door body 200 drives the second hinge seat 320 to rotate relative to the first hinge seat 310 during closing, the abutting portion 327 on the second hinge seat 320 acts on the inclined surface of the corresponding sliding groove 351 to push the driving member 350 to move on the fixed shaft 330, so as to compress the elastic member 360; when the door 200 is opened, the door 200 is driven to reset under the reset action of the elastic member 360, so as to assist in closing the door 200.

The second aspect of the present application provides an opening and closing apparatus, which includes a door body 200, a case 100, and a hinge according to the first aspect of the present application, wherein a first connection portion of the hinge is connected to the door body 200, and a second connection portion of the hinge is connected to the case 100.

The opening and closing device provided by the second aspect of the present application realizes opening and closing of the door body 200 through the first hinge seat and the second hinge seat of the integrated structure, and the integrated structure of the hinge can reduce the assembly workload of the opening and closing device, improve the assembly efficiency, reduce parts, and further improve the service life of the hinge.

The present application is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims

1. A hinge for connecting a door body and a case body of an opening and closing apparatus, comprising:

2. The hinge according to claim 1, wherein the first connecting portion includes a first clamping plate and a second clamping plate, the first clamping plate is used for being clamped in a clamping groove of the box body, a first mounting hole is formed in the second clamping plate, and the first mounting hole is used for being matched with a fixing piece to enable the second clamping plate to be connected with an outer side face of the box body.

3. The hinge according to claim 2, wherein the number of the first mounting holes is plural, and the plural first mounting holes are arranged at intervals.

4. A hinge according to claim 3, wherein a plurality of said first mounting holes are arranged at intervals from each other in a first direction, and the extension direction of the rotation axes of said first hinge part and said second hinge part is the same as said first direction.

5. A hinge according to claim 3, wherein first reinforcing ribs are provided on each of the second clamping plates on both sides of any of the first mounting holes.

6. The hinge according to claim 1, wherein the second connecting portion includes a third clip, the third clip having a second mounting hole for mating with a fastener to connect the third clip to the door body.

7. The hinge of claim 6, wherein the number of the second mounting holes is plural, and the plural second mounting holes are spaced apart.

8. The hinge according to claim 7, wherein the plurality of second mounting holes have at least three second mounting holes, and a line connecting centers of the three second mounting holes is triangular.

9. The hinge of claim 6, wherein the third clamping plate is provided with a second reinforcing rib.

10. The hinge according to claim 9, wherein the second hinge base is provided with a hollowed-out portion, and the hollowed-out portion is disposed on the second reinforcing rib.

11. A hinge according to any one of claims 1 to 10, wherein the number of second hinge brackets is two, and the two second hinge brackets are rotatably connected to both ends of the first hinge bracket in a first direction, respectively, and the rotation axes of the first hinge part and the second hinge part extend in the same direction as the first direction.

12. An opening and closing apparatus, comprising:

a door body;

a case;

hinge, for a hinge according to any one of claims 1 to 11, wherein the first connecting portion of the hinge is connected to the case, and the first connecting portion of the hinge is connected to the door.

13. The folding apparatus of claim 12, wherein the folding apparatus is a refrigerator.