CN111336757B

CN111336757B - Adjusting pin assembly, door body lower hinge structure and refrigerator

Info

Publication number: CN111336757B
Application number: CN202010183476.9A
Authority: CN
Inventors: 陈冠锋; 许媛
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: 2020-03-16
Filing date: 2020-03-16
Publication date: 2022-02-01
Anticipated expiration: 2040-03-16
Also published as: CN111336757A

Abstract

The invention discloses an adjusting pin assembly, a door body lower hinge structure and a refrigerator. The anti-disengaging connecting structure comprises a connecting sleeve and an axle center which is arranged in a barrel cavity of the connecting sleeve in a penetrating mode, the top end of the axle center penetrates out of an axle center mounting hole in the mounting plate and forms a top end riveting portion of a stop on the top surface of the mounting plate, the axle center further comprises an axle center threaded connecting portion, the connecting sleeve comprises an intermediate external thread connecting portion which is connected with an axle center threaded connecting portion in a threaded mode and is connected with an internal thread adjusting hole in a penetrating mode, and the intermediate external thread connecting portion is connected with an internal thread adjusting hole in an internal thread adjusting hole of the adjusting foot body in a penetrating mode. The adjusting foot assembly is connected stably, so that the adjusting foot can be prevented from falling off in the using process, and the material waste caused by unqualified processing can be reduced in the production process.

Description

Adjusting pin assembly, door body lower hinge structure and refrigerator

Technical Field

The invention relates to the technical field of electric appliance manufacturing, in particular to an adjusting pin assembly, a door body lower hinge structure and a refrigerator.

Background

The refrigerator is generally provided with an adjusting foot at the bottom to solve the inclination phenomenon of the refrigerator caused by the uneven ground. Partial adjusting feet are connected with threaded holes of the hinge plate through threads, when the refrigerator is required to be placed unevenly, the effective length is adjusted by screwing the adjusting feet, and the purpose of adjusting the height of the refrigerator is achieved. However, in the long-time transportation process of the refrigerator, frequent vibration easily causes the adjusting feet to loosen and fall off, thereby bringing great inconvenience to the seller and the consumer. In addition, due to the limitation of the thickness of the hinge plate, the length of the threaded connection between the adjusting foot and the hinge plate is limited, the bearing capacity of the adjusting foot is insufficient, and the condition of unstable support and even damage is easy to occur. And part of studs of the adjusting foot assemblies are connected with the hinge plate in a riveting mode, but the phenomena of unqualified riveting and material waste are easy to occur in the production process.

Disclosure of Invention

The invention aims to provide a novel adjusting foot assembly, a door body lower hinge structure and a refrigerator.

In order to achieve the above object, the present invention provides an adjustment foot assembly provided below a mounting plate, the adjustment foot assembly including:

an adjusting foot body; and

the anti-falling connecting structure is characterized in that the adjusting foot body is connected with the mounting plate through the anti-falling connecting structure, and the anti-falling connecting structure and the mounting plate form a detachable mounting structure.

Optionally, the mounting panel can be equipped with the axle center mounting hole, anticreep connection structure includes the connecting sleeve and wears to establish axle center in the barrel cavity of connecting sleeve, wear out on the top of axle center mounting hole on the mounting panel and form the backstop and be in top riveting portion on the top surface of mounting panel, the axle center still include with the axle center threaded connection portion that top riveting portion connects, the connecting sleeve include with axle center threaded connection portion threaded connection's top internal thread portion and with the middle external screw thread connecting portion that top internal thread portion connects, the regulation script body is equipped with the internal thread regulation hole, middle external screw thread connecting portion wear to establish in the internal thread regulation hole with internal thread regulation hole threaded connection.

Further, the connecting sleeve still can include with middle external screw thread connecting portion are connected and are used for preventing adjust the bottom anticreep portion that the script body drops, adjust the foot body still include the follow internal thread regulation hole downwardly extending and link up adjust the foot reaming of the bottom of foot body, the reaming aperture of foot is adjusted to the bottom is greater than the aperture of internal thread regulation hole, bottom anticreep portion is located in the foot reaming is adjusted to the bottom.

Furthermore, the bottom end anti-falling part can be formed into a bottom end expansion piece part, the bottom end expansion piece part comprises a plurality of expansion pieces extending from the middle external thread connecting part to the bottom, the expansion pieces are arranged at intervals along the circumferential direction of the middle external thread connecting part and form a reversed circular truncated cone cavity around the expansion pieces, the axis further comprises a bottom end expansion piece matching part extending from the axis thread connecting part to the bottom, and the bottom end expansion piece matching part extends into the reversed circular truncated cone cavity and enables the expansion pieces to expand and expand radially outwards, and the outer diameter of the bottom end expansion piece part after expansion is larger than the aperture of the internal thread adjusting hole.

In some embodiments, the root connecting portion between any two circumferentially adjacent expansion pieces may be formed as a smooth transition.

Optionally, the bottom end expansion sheet matching part does not penetrate out of the bottom end adjusting foot hole expanding hole.

Optionally, the axis threaded connection portion and the inner hole of the middle external thread connection portion may form an interference hole-axis fit.

In some embodiments, the top end internal thread portion may be formed with an enlarged diameter boss portion extending radially outward.

Correspondingly, the invention also provides a door body lower hinge structure, which can comprise:

a hinge plate; and

in the adjusting foot component, the adjusting foot body is connected with the hinge plate through the anti-falling connecting structure, and the anti-falling connecting structure is detachably mounted on the hinge plate.

In addition, the present invention also provides a refrigerator including:

a refrigerator body; and

the door body lower hinge structure is arranged below the refrigerator body.

The adjusting pin assembly comprises an adjusting pin body and an anti-falling connecting structure, wherein the adjusting pin body is connected with the mounting plate through the anti-falling connecting structure, and the connecting structure is stable and can prevent the adjusting pin body from falling off from the mounting plate in the using process; and, anticreep connection structure forms demountable installation with the mounting panel, so, in process of production, when the unqualified condition of riveting appears in anticreep connection structure and mounting panel, anticreep connection structure can carry out the harmless dismantlement with the mounting panel, and the spare part that the harmless dismantlement got off can recycle again, and the reducible material that causes because of processing is unqualified extravagant from this.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a lower hinge structure of a door body according to an embodiment of the invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged partial schematic view of FIG. 2;

FIG. 4 is a schematic structural view of the adjustment foot body of FIGS. 2 and 3;

FIG. 5 is a schematic view of the coupling sleeve of FIGS. 2 and 3;

fig. 6 is a schematic view of the structure of the hub in fig. 2 and 3.

Description of the reference numerals

100 hinge plate

1 adjusting pin body 11 internal thread adjusting hole

12 bottom end adjusting pin reaming 2 connecting sleeve

21 expanded diameter bearing part of top end internal thread part 211

22 bottom end expansion piece part of middle external thread connecting part 23

231 expansion piece 232 inverted circular truncated cone cavity

233 root connecting part 3 axis

31 top end riveting part 32 axis thread connecting part

33 bottom expansion sheet matching part

Detailed Description

The following detailed description of specific embodiments of the invention refers to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory of the invention and are not restrictive thereof.

The adjusting foot assembly, the door body lower hinge structure and the refrigerator are described below with reference to the accompanying drawings, the adjusting foot assembly is reasonable in structure and stable in connection, the adjusting foot can be prevented from falling off in the using process, and material waste caused by unqualified processing can be reduced in the production process.

Referring to fig. 1 to 6, the adjusting pin assembly of the present invention is disposed below the mounting plate, and the adjusting pin assembly includes an adjusting pin body 1 and an anti-falling connecting structure, the adjusting pin body 1 is connected to the mounting plate through the anti-falling connecting structure, and the anti-falling connecting structure and the mounting plate form a detachable installation.

As shown in fig. 1 to 6, the invention further provides a door lower hinge structure, where the mounting plate is a hinge plate, the door lower hinge structure includes the hinge plate and the above-mentioned adjusting pin assembly, the adjusting pin body 1 is connected to the hinge plate 100 through an anti-dropping connection structure, and the anti-dropping connection structure is detachably mounted to the hinge plate 100. In addition, the invention also provides a refrigerator which comprises a refrigerator body and the door body lower hinge structure arranged below the refrigerator body. Of course, the door lower hinge structure may be installed on an electric appliance such as a floor type disinfection cabinet or a floor type storage cabinet, in addition to the refrigerator, and the present invention is not limited thereto. The door lower hinge structure will be explained as an exemplary embodiment of the present invention, in which the hinge plate 100 serves as the mounting plate.

The adjusting feet of the existing refrigerator are connected with the threaded holes of the hinge plate through threads, but frequent vibration easily causes the adjusting feet to loosen and fall off in the long-time transportation process of the refrigerator, thereby bringing great inconvenience to sellers and consumers. In addition, the stud of a part of adjusting foot components is riveted with the hinge plate, but the phenomena of unqualified riveting and material waste are easy to occur in the production process. In view of the above, the adjusting foot assembly of the present invention can solve the two problems at the same time by providing the anti-dropping connection structure. Adjust foot body 1 and pass through anti-disengaging connection structure and connect the mounting panel, connection structure is firm reliable, can prevent in the use that adjust foot body 1 and drop from the mounting panel, and user experience is good. Simultaneously, anticreep connection structure forms demountable installation with the mounting panel, so, in process of production, when the unqualified condition of riveting appears in anticreep connection structure and mounting panel, anticreep connection structure can carry out harmless dismantlement with the mounting panel, and the spare part that the harmless dismantlement got off can recycle again, and the reducible material that causes because of processing is unqualified from this extravagant, reduction in production cost.

In some embodiments, in order to detachably mount the anti-drop connection structure and the hinge plate 100, as shown in fig. 1 to 6, the hinge plate 100 is provided with an axis mounting hole, the anti-drop connection structure includes a connection sleeve 2 and an axis 3, a top end of the axis 3 penetrates through the axis mounting hole on the mounting plate and forms a top end riveting portion 31 by riveting, and the top end riveting portion 31 is stopped on a top surface of the hinge plate 100. The axle center 3 further comprises an axle center threaded connection portion 32 connected with the top end riveting portion 31, the connecting sleeve 2 comprises a top end internal threaded portion 21 and an intermediate external threaded connection portion 22 connected with the top end internal threaded portion 21, and the axle center threaded connection portion 32 is arranged in the cylinder cavity of the connecting sleeve 2 in a penetrating mode and is in threaded connection with the top end internal threaded portion 21. Adjust foot body 1 and be equipped with internal thread regulation hole 11, internal thread regulation hole 11 cover is established on middle external screw thread connecting portion 22 and with middle external screw thread connecting portion 22 threaded connection.

The adjusting foot body 1 is arranged on the hinge plate 100 through the axis center 3 and the connecting sleeve 2, and the axis center 3 and the connecting sleeve 2 are detachably arranged on the hinge plate 100 as an anti-falling connecting structure, so that even if the top end of the axis center 3 is not riveted with the hinge plate 100 due to negligence of staff and the like, the axis center 3 and the connecting sleeve 2 can be dismounted without damage with the hinge plate 100, the parts dismounted without damage, such as the hinge plate 100 and the connecting sleeve 2, can be recycled, and waste of production materials is reduced. Meanwhile, the adjusting foot assembly can adjust the effective length of the adjusting foot body 1 by screwing the adjusting foot body 1, so that the aim of adjusting the height of the refrigerator is fulfilled.

In addition, in the actual production process, the riveted point after riveting is smaller and the situation of unqualified riveting can occur due to the problem that the machining, supplying and dimension error of the parts is larger. The axis 3 of the adjusting foot component can be adjusted up and down through being in threaded connection with the connecting sleeve 2, and when the diameter of the riveting point is smaller, the axis 3 can be adjusted upwards, so that the riveting point after riveting is enlarged, the riveting processing difficulty can be greatly reduced, the rejection rate is further reduced, and the waste of materials is reduced.

Of course, it can be understood by those skilled in the art that in the above-described embodiment, the tip end of the axial center of the retaining connection structure is formed as the tip end caulking portion 31 by caulking, but the present invention is not limited thereto, and the retaining connection structure may be formed as another embodiment, for example, the tip end of the axial center of the retaining connection structure may be directly processed so that the axial center tip end expanded diameter portion is stopped on the top surface of the mounting plate (not shown in the figure). In addition, the connecting sleeve can also only comprise the top end internal thread part 21 in addition to the top end internal thread part 21 and the middle external thread connecting part 22, in this case, the adjusting foot body 1 can be directly screwed with the axle center thread connecting part 32 of the axle center 3 for effective length adjustment, and an anti-dropping structure (not shown in the figure) can be arranged at the bottom end of the axle center 3, and the invention is not limited to this.

Optionally, as shown in fig. 3 and 4, the connection sleeve 2 may further include a bottom-end anti-disengaging portion connected to the middle external thread connection portion 22 and configured to prevent the adjustment foot body 1 from disengaging, the adjustment foot body 1 further includes a bottom-end adjustment foot hole 12 extending downward from the internal thread adjustment hole 11 and penetrating through the adjustment foot body 1, a hole diameter of the bottom-end adjustment foot hole 12 is larger than a hole diameter of the internal thread adjustment hole 11, and the bottom-end anti-disengaging portion is located in the bottom-end adjustment foot hole 12. Thus, the bottom end anti-dropping part can achieve the anti-dropping purpose of the adjusting pin body 1 in the bottom end adjusting pin hole 12 through self-stopping or combining with other parts to stop in the bottom end adjusting pin hole 12.

In some embodiments, as shown in fig. 3, 5 and 6, the bottom-end-retaining-portion may be formed as a bottom-end-expanding-piece portion 23, the bottom-end-expanding-piece portion 23 includes a plurality of expanding pieces 231 extending from the middle external-thread connecting portion 22 to the bottom, the expanding pieces 231 are arranged at intervals along the circumferential direction of the middle external-thread connecting portion 22 and surround and form a rounded-frustum cavity 232, the axle center 3 further includes a bottom-end-expanding-piece matching portion 33 extending from the axle-center threaded connecting portion 32 to the bottom, the bottom-end-expanding-piece matching portion 33 extends into the rounded-frustum cavity 232 and expands the expanding pieces 231 radially outward, and the outer diameter of the expanded bottom-end-expanding-piece portion 23 is larger than the aperture of the internal-thread adjusting hole 11, so that the bottom-end-expanding-piece portion 23 can be stopped in the bottom-end-adjusting foot-expanding hole 12 to prevent the adjusting foot body 1 from falling downward.

Alternatively, different opening sizes can be adjusted by adjusting the fitting position and the fitting diameter of the bottom-end expansion piece fitting portion 33 and the bottom-end expansion piece portion 23, and in order to prevent the expansion piece 231 from being excessively expanded to be broken by a unit displacement amount of the shaft center 3, the peripheral wall extension vertex angle α of the rounded off table cavity 232 may be not more than 120 °.

Alternatively, as shown in fig. 5, in order to prevent the root connecting portion 233 between two expansion pieces 231 from being cracked due to stress concentration when the expansion pieces 231 expand, the root connecting portion 233 between any two expansion pieces 231 adjacent in the circumferential direction may be formed to be smoothly transited. As shown in fig. 5, the root connecting portion 233 uses a rounded transition similar to a circular arc, but the invention is not limited thereto, and the root connecting portion 233 may use a hole similar to a U-shaped hole or a V-shaped hole.

Further, in order to prevent the lower end of the shaft core 3 from exceeding the bottom end adjusting foot hole 12 and causing unstable refrigerator support, the bottom end expansion piece matching part 33 does not penetrate out of the bottom end adjusting foot hole 12.

Of course, it can be understood by those skilled in the art that the bottom end anti-slip part can be formed as a snap-fit connection part, besides the bottom end expansion piece part 23, and the anti-slip connection structure can further include a snap-fit connection part (not shown in the figure) snap-fit connected with the snap-fit connection part, so that the bottom end anti-slip part can also be stopped in the bottom end adjustment foot hole 12 to prevent the adjustment foot body 1 from falling off downwards.

Furthermore, in order to ensure the tight fit between the connection position of the connection sleeve 2 and the adjustment leg body 1 and the axle center 3 and avoid the connection sleeve 2 from being easily broken due to too thin wall thickness, the axle center threaded connection portion 32 and the inner hole of the middle external threaded connection portion 22 can form a tightly fitted hole-axle fit or a slightly interference hole-axle fit, so that the axle center 3 can play a role of supporting the connection sleeve 2 to prevent the connection sleeve 2 from being deformed and broken.

Alternatively, the top end female screw portion 21 may be formed with an enlarged diameter bearing portion 211 extending radially outward, so that the bearing area of the connecting sleeve 2 and the hinge plate 100 is increased and the bearing structure is more stable and reliable.

In conclusion, the invention provides a novel adjusting foot assembly, a door body lower hinge structure and a refrigerator, wherein the adjusting foot assembly is reasonable in structure and stable in connection, the adjusting foot can be prevented from falling off in the using process, and material waste caused by unqualified processing can be reduced in the production process.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An adjustment foot assembly disposed below a mounting plate, the adjustment foot assembly comprising:

an adjusting foot body; and

the adjusting pin body is connected with the mounting plate through the anti-falling connecting structure, and the anti-falling connecting structure and the mounting plate form detachable installation;

the mounting panel is equipped with the axle center mounting hole, anticreep connection structure includes connecting sleeve and wears to establish axle center in connecting sleeve's barrel cavity, wear out on the top in axle center mounting hole on the mounting panel and form the backstop and be in top riveting portion on the top surface of mounting panel, the axle center still include with the axle center threaded connection portion that top riveting portion connects, the connecting sleeve include with axle center threaded connection portion threaded connection's top internal thread portion and with the middle external screw thread connecting portion that top internal thread portion connects, the regulation script body is equipped with the internal thread regulation hole, middle external screw thread connecting portion wear to establish in the internal thread regulation hole with internal thread regulation hole threaded connection.

2. The adjustment foot assembly according to claim 1, wherein the connection sleeve further comprises a bottom-end anti-disengagement portion connected to the intermediate male threaded connection portion for preventing the adjustment foot body from disengaging, the adjustment foot body further comprises a bottom-end adjustment foot counterbore extending downward from the female threaded adjustment hole and penetrating through the adjustment foot body, the bottom-end adjustment foot counterbore has a diameter larger than that of the female threaded adjustment hole, and the bottom-end anti-disengagement portion is located in the bottom-end adjustment foot counterbore.

3. The adjusting foot assembly according to claim 2, wherein the bottom-end detachment preventing portion is formed as a bottom-end expansion piece portion, the bottom-end expansion piece portion includes a plurality of expansion pieces extending from the middle external thread connecting portion to the bottom, the expansion pieces are arranged at intervals along the circumferential direction of the middle external thread connecting portion and surround to form an inverted circular truncated cone cavity, the axle center further includes a bottom-end expansion piece matching portion extending from the axle center thread connecting portion to the bottom, and the bottom-end expansion piece matching portion extends into the inverted circular truncated cone cavity and radially expands and expands the expansion pieces outwards, and the outer diameter of the bottom-end expansion piece portion after expansion is larger than the aperture of the internal thread adjusting hole.

4. The adjustment foot assembly according to claim 3, characterized in that the root connecting portion between any two circumferentially adjacent expansion tabs is formed as a rounded transition.

5. The tuning pin assembly of claim 3, wherein said bottom expansion tab engaging portion does not extend out of said bottom tuning pin counterbore.

6. The adjustment foot assembly according to claim 1, characterized in that said axial threaded connection forms an interference hole-shaft fit with an inner hole of said intermediate external threaded connection.

7. The assembly according to any one of claims 1 to 6, wherein the apical female screw portion is formed with an enlarged diameter boss portion extending radially outward.

8. A hinge structure under door body, its characterized in that hinge structure includes under the door body:

a hinge plate; and

the adjusting foot assembly according to any one of claims 1 to 7, wherein the adjusting foot body is connected to the hinge plate through the anti-dropping connecting structure, and the anti-dropping connecting structure is detachably mounted to the hinge plate.

9. A refrigerator, characterized in that the refrigerator comprises:

a refrigerator body; and

the door lower hinge structure according to claim 8, mounted below the refrigerator body.