CN108104642B

CN108104642B - Hinge structure, box structure and dish washer

Info

Publication number: CN108104642B
Application number: CN201810018286.4A
Authority: CN
Inventors: 易敏
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2018-01-09
Filing date: 2018-01-09
Publication date: 2023-05-23
Anticipated expiration: 2038-01-09
Also published as: CN108104642A

Abstract

The invention relates to a hinge structure, a box body structure and a dish washer, wherein the hinge structure comprises a hinge seat, and an installation cavity is arranged on the hinge seat; the anti-wear piece is arranged in the mounting cavity and is provided with a pivot hole; the anti-wear part is provided with an opening, the hinge pivot is extruded and clamped into the pivot hole through the opening, and the diameter of the pivot hole is not larger than that of the hinge pivot before the hinge pivot is not clamped into the pivot hole. The hinge structure not only can reduce loss and noise, but also can facilitate the installation and the disassembly of the hinge shaft from the pivot hole, and more importantly, the coaxiality is high.

Description

Hinge structure, box structure and dish washer

Technical Field

The invention relates to the field of household appliances, in particular to a hinge structure, a box structure and a dish washer.

Background

At present, dish washer includes the inner bag, install the door body on the inner bag through hinge structure, and put the bowl basket of tableware, wherein be equipped with the inner bag guide rail plane in the inner bag, be equipped with door body guide rail plane on the door body, be equipped with the gyro wheel on the bowl basket, the gyro wheel can slide along inner bag guide rail plane and door body guide rail face, the difference in height that exists between inner bag guide rail plane and the door body guide rail plane in current dish washer is great, therefore, when the bowl basket was pulled out to the guide rail face of the door body from the guide rail face of inner bag, or the bowl basket pushes into the guide rail face of inner bag like there is obvious the sense of feeling of being just on rolling down on the step from the guide rail face of the door body, more importantly, hinge pivot in the hinge structure and hinge seat are the sheet metal component, and when hinge seat is pivoted around the hinge, the mutual contact between sheet metal component and the sheet metal component, the mutual motion can produce great frictional force, thereby not only arouse the noise, there is the sense of being pause, and two mutual friction still can lead to the material wearing and tearing to failure. This not only affects the user experience, but also affects the lifetime of the hinge structure.

Chinese patent document CN204212574U discloses a door hinge, which comprises a first base, a first plastic bushing, a rotating shaft, a second plastic bushing, and a second base, wherein the first plastic bushing is located on the first base, the second plastic bushing is located on the second base, one end of the rotating shaft is located on the second base with the first plastic bushing, one end of the rotating shaft is connected with the first plastic bushing, and the other end of the rotating shaft is connected with the second plastic bushing.

The door hinge disclosed in this patent document can reduce loss and noise, but has the following problems: because machining errors are unavoidable, coaxiality between the rotating shaft and the plastic bushing is not easy to be ensured, and in addition, because the rotating shaft is respectively inserted into the first plastic bushing and the second plastic bushing through two ends, the installation and the disassembly are inconvenient.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is that the hinge structure in the prior art has the defects that the coaxiality between the rotating shaft and the plastic bushing is not easy to ensure and the mounting and dismounting of the rotating shaft are inconvenient, so that the hinge structure, the box body structure and the dish washing machine which are low in friction, noiseless, high in coaxiality, convenient to mount and good in user experience are provided.

In order to solve the technical problems, the hinge structure of the invention comprises

A hinge provided with an installation cavity;

the anti-wear piece is arranged in the mounting cavity and is provided with a pivot hole;

the hinge seat is provided with a hinge pivot, and the hinge pivot is rotatably arranged in the pivot hole;

the anti-wear part is provided with an opening, the hinge pivot is extruded and clamped into the pivot hole through the opening, and the diameter of the pivot hole is not larger than that of the hinge pivot before the hinge pivot is not clamped into the pivot hole.

The wear member includes

The body is provided with an open inner cavity;

the pivot hole part is arranged in the inner cavity, a gap which allows the aperture of the pivot hole on the pivot hole part to expand or shrink is reserved between the pivot hole part and the inner cavity, and the opening is arranged towards the opening direction.

The anti-wear piece further comprises a guide structure which is arranged at the opening and guides the hinge pivot to be clamped into the pivot hole.

The guide structure comprises two guide ribs which are respectively connected with two ends of the opening, and the two guide ribs are arranged in an expanding mode from a narrow width to a wide width from the opening to a direction far away from the opening.

One ends of the two guide ribs, which are not connected with the opening, are respectively connected to the side wall of the inner cavity of the body.

The wear-resistant piece is a plastic piece.

The plastic piece is made of POM or nylon.

The body is arranged into a U-shaped structure, the pivot hole part is arranged into a circular arc structure, and the part of the pivot hole part opposite to the opening is connected with the bottom of the inner side of the U-shaped structure.

The wear prevention piece is integrally formed.

The box body structure comprises an open box body and a box door which is rotatably arranged on the box body through a hinge structure and is used for opening or closing the open opening of the box body, wherein the hinge structure is the hinge structure.

The box body is internally provided with a box guide surface;

the inner side of the box door is provided with a box door guide surface, and when the box door rotates to an open state, the box body guide surface is parallel to the box door guide surface and is suitable for sliding on the box door guide surface and the box door guide surface in a reciprocating manner by a sliding structure; the distance between the hinge pivot axis of the hinge structure and the guide surface of the box body is A, and when the box door rotates to an open state, the distance between the hinge pivot axis and the guide surface of the box door is B, and the absolute value of the difference between the distance A and the distance B is smaller than 1mm.

When the box door is in a closed state, the distance between the axis of the hinge pivot and the guide surface of the box door is C, and the distance C is equal to the distance B.

The hinge seat is installed on the box body, and the hinge is installed on the box door.

The hinge seat is rigidly connected to the box body or connected to the box body through a threaded fastener.

The hinge is connected to the door by a threaded fastener.

The dishwasher of the invention is provided with the box body structure, wherein

The box body is an inner container of the dish washer, and the guide surface of the box body is an inner container guide surface;

the door is a door body of the dish washer, and the guide surface of the door is a guide surface of the door body;

the sliding structure is a bowl basket and is arranged in the inner container.

The technical scheme of the invention has the following advantages:

in the invention, the anti-abrasion piece is arranged, so that the direct contact between the hinge pivot and the pivot hole is avoided when the door is opened or closed, the noise caused by friction can be reduced, the material abrasion and failure caused by friction are reduced, and the frustration is also reduced correspondingly. More importantly, as the pivot hole is provided with the opening, the hinge pivot can be clamped into the pivot hole from the opening when being installed, and can be conveniently taken out from the pivot hole from the opening, so that the hinge pivot is very convenient to install and detach. And after the hinge pivot is clamped into the pivot hole, the pivot hole automatically contracts, so that the hinge pivot can be tightly contacted with the hinge pivot, the proper aperture can be finely and automatically adjusted, and the coaxiality of the hinge pivot and the hinge pivot is ensured. 2. In the invention, the distance between the hinge pivot axis of the hinge structure and the guide surface of the box body is B, and the absolute value of the difference between the distance A and the distance B is smaller than 1mm when the box door rotates to an open state. When the absolute value of the difference between the distance A and the distance B is limited to be smaller than 1mm, the sliding structure can freely move on the guide surface of the box body and the guide surface of the box door, and the height difference between the two guide surfaces is very small, so that the pause and contusion generated when the sliding structure is pulled can be reduced, and the user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing a structure of a door body of a dishwasher in a closed state;

FIG. 2 is a schematic view showing a structure in which a door body of a dishwasher of the present invention is opened;

FIG. 3 is an enlarged view of a portion of FIG. 2E;

FIG. 4 is a schematic view of the hinge pivot of FIG. 3 not yet snapped into the pivot hole;

reference numerals illustrate:

1-a hinge base; 2-hinge pivot; 3-a hinge; 5-door body; 6, a door body guide rail surface; 7, a roller; 8-bowl basket; 9-an inner container frame; 10-an inner container; 12-distance B; 13-hinge pivot axis position; 14-distance C; 15-distance a; 16-the guide surface of the inner container; 17-an anti-wear member; 171-pivot hole; 172-body; 173-guiding ribs.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Example 1

As shown in fig. 1 to 4, a hinge structure of the present invention includes

A hinge 3 on which an installation cavity is provided;

an anti-wear member 17 disposed within the mounting cavity and having a pivot hole 171 thereon;

a hinge base 1 on which a hinge pivot 2 is provided, the hinge pivot 2 being rotatably provided in the pivot hole 171;

at least the portion of the wear-preventing member 17 where the pivot hole 171 is formed has elasticity, and the pivot hole 171 is provided with an opening, the opening is suitable for the hinge pivot 2 to be pressed and clamped into the pivot hole 171 through the opening, and the diameter of the pivot hole 171 is not larger than the diameter of the hinge pivot 2 before the hinge pivot 2 is not clamped into the pivot hole 171.

The anti-abrasion piece is arranged, so that when the door is opened or closed, the hinge pivot 2 is prevented from being in direct contact with the pivot hole 171, noise caused by friction can be reduced, material abrasion and failure caused by friction are reduced, and the pause and frustration feeling is correspondingly reduced. More importantly, since the pivot hole 171 is provided with an opening, the hinge pivot 2 can be clamped into the pivot hole 171 from the opening when being installed, and the hinge pivot 2 can be conveniently taken out of the pivot hole 171 from the opening, so that the hinge pivot 2 is convenient to install and detach. And because the hinge pivot 2 is clamped into the pivot hole 171, the pivot hole 171 automatically contracts, so that the hinge pivot 2 can be closely contacted, the proper aperture can be finely and automatically adjusted, and the coaxiality of the hinge pivot 2 and the hinge pivot is ensured.

The wear member 17 may be of a variety of constructions, and in this embodiment, it is preferred that the wear member 17 comprises

A body 172 having an open interior cavity formed therein;

the pivot hole part is arranged in the inner cavity, a gap allowing the aperture of the pivot hole 171 on the pivot hole part to expand or contract is reserved between the pivot hole part and the inner cavity, and the opening is arranged towards the opening direction. Such wear member 17 is simple in construction and convenient to install.

Specifically, the body 172 is configured as a U-shaped structure, the pivot hole portion is configured as a circular arc structure, and a portion of the pivot hole portion opposite to the opening is connected to the bottom of the inner side of the U-shaped structure.

Further, in order to enable the hinge pivot to smoothly pass through the opening, the wear prevention member 17 further includes a guide structure disposed at the opening for guiding the hinge pivot 2 to be locked into the pivot hole 171.

In this embodiment, the guiding structure includes two guiding ribs 173 connected to two ends of the opening, and the two guiding ribs 173 are disposed in an expanding manner from the opening to a direction away from the opening from a narrow width. The hinge pivot 2 slides along the guide rib 173 between them to slide into the opening.

Preferably, the wear member 17 is integrally formed.

Preferably, the wear-proof piece 17 is a plastic piece, which is low in cost and good in wear-proof effect.

The plastic piece is made of POM or nylon. The two materials have good wear resistance, and the situation that the parts are disabled after being worn can not occur, so that the hinge is properly used between the hinge pivot and the hinge.

The box body structure comprises an open box body 172 and a box door rotatably mounted on the box body 172 through a hinge structure, wherein the box door is used for opening or closing the opening of the box body 172, and the hinge structure is the hinge structure.

The box body is internally provided with a box guide surface;

the inner side of the box door is provided with a box door guide surface, and when the box door rotates to an open state, the box body guide surface is parallel to the box door guide surface and is suitable for sliding on the box door guide surface and the box door guide surface in a reciprocating manner by a sliding structure;

the distance between the hinge pivot axis 13 of the hinge structure and the guide surface of the box body is A, and when the box door rotates to an open state, the distance between the hinge pivot axis 13 and the guide surface of the box door is B, and the absolute value of the difference between the distance A15 and the distance B12 is smaller than 1mm.

The above scheme is a core scheme of the invention, when the absolute value of the difference between the distance A15 and the distance B12 is limited to be smaller than 1mm, the sliding structure can freely move on the guide surface of the box body and the guide surface of the box door, and the height difference between the two guide surfaces is very small, so that the frustration feeling generated when the sliding structure is pulled can be reduced, and the user experience is improved.

Further, in order to ensure that the guide surface of the door is kept in a vertical direction when the door is closed, the distance between the hinge pivot axis 16 and the guide surface of the door is C, and the distance C14 is equal to the distance B12 when the door is in a closed state. When the box door is in a closed state, the guide surface of the box body is perpendicular to the guide surface of the box door.

The hinge structure comprises a hinge seat 1 arranged on the box body and a hinge 3 arranged on the box door and hinged with the hinge seat 1 in a matched mode, a hinge pivot 2 is arranged on the hinge seat 1, and a pivot hole pivoted with the hinge pivot 2 is arranged on the hinge 3. Of course, in other embodiments, the hinge base 1 may be provided on the door, and the hinge 3 may be provided on the cabinet.

The hinge base 1 is connected to the box body rigidly or by a threaded fastener.

The hinge 3 is connected to the door by a threaded fastener.

In this embodiment, the threaded fastener is preferably a screw.

The housing structure of the present invention can be applied to various devices, particularly household appliances, and the present invention is described by taking a dishwasher as an example, and the dishwasher of the present invention has the housing structure, wherein

The box body is a liner 10 of the dish washer, and the guide surface of the box body is a liner guide surface 16;

the door is a door body 5 of the dish washer, and the guide surface of the door is a guide surface 6 of the door body;

the sliding structure is a bowl basket 8 and is arranged in the inner container 10.

In order to facilitate the bowl basket 8 to slide smoothly on the two guide surfaces, the bottom of the bowl basket 8 is provided with rollers 7 which are contacted with the inner container guide surface 16 or the door guide surface 6.

An inner container frame 9 is arranged at the opening of the inner container 10, and the door body is matched with the inner container frame 9 when being closed.

When the door body is opened by 90 degrees, the height difference of the guide surface of the inner container and the guide surface of the door body is small, so that the degree of setback is low in the push-pull process, a bowl basket in the inner container can be directly processed to be smoothly pulled onto the guide surface of the door body from the guide surface of the inner container, and the bowl basket can be smoothly pushed into the guide surface of the inner container from the guide surface of the door body, so that the experience is very comfortable.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims

1. A hinge structure includes

A hinge (3) provided with an installation cavity;

the wear-resistant piece (17) is arranged in the mounting cavity and is provided with a pivot hole (171);

a hinge base (1) on which a hinge pivot (2) is provided, the hinge pivot (2) being rotatably provided in the pivot hole (171);

it is characterized in that the method comprises the steps of,

at least the part of the wear-resistant piece (17) where the pivot hole (171) is formed is elastic, the pivot hole (171) is provided with an opening, the opening is suitable for the hinge pivot (2) to be pressed and clamped into the pivot hole (171) through the opening, and the diameter of the pivot hole (171) is not larger than the diameter of the hinge pivot (2) before the hinge pivot (2) is not clamped into the pivot hole (171);

the wear part (17) comprises a body (172) provided with an open inner cavity;

the pivot hole part is arranged in the inner cavity, the body (172) is of a U-shaped structure, the pivot hole part is of a circular arc structure, a gap which allows the aperture of the pivot hole (171) on the pivot hole part to expand or shrink is reserved between the pivot hole part and the inner cavity, and the opening is arranged towards the opening direction;

the part of the pivot hole part opposite to the opening is connected with the bottom of the inner side of the U-shaped structure, and the wear-resistant piece (17) is integrally formed.

2. The hinge construction according to claim 1, characterized in that the wear part (17) further comprises a guide structure arranged at the opening for guiding the hinge pivot (2) into the pivot hole (171).

3. The hinge structure according to claim 2, wherein the guide structure comprises two guide ribs (173) connected to both ends of the opening, and the two guide ribs (173) are formed in an expanded shape from the opening to a direction away from the opening.

4. Hinge structure according to claim 1, characterized in that the ends of the two guide ribs (173) not connected to the opening are respectively connected to the side walls of the cavity of the body (172).

5. Hinge construction according to any one of claims 1-4, characterized in that the wear part (17) is a plastic part.

6. The hinge structure of claim 5, wherein the plastic member is POM or nylon.

7. A box structure comprising an open box body (172), and a box door rotatably mounted on the box body (172) through a hinge structure to open or close the opening of the box body (172), characterized in that the hinge structure is the hinge structure according to any one of claims 1 to 6.

8. A box structure according to claim 7, wherein a box guide surface is provided in the box body;

the distance between the hinge pivot axis (13) of the hinge structure and the guide surface of the box body is A, and when the box door rotates to an open state, the distance between the hinge pivot axis (13) and the guide surface of the box door is B, and the absolute value of the difference between the distance A (15) and the distance B (12) is smaller than 1mm.

9. The cabinet structure according to claim 8, wherein when the door is in a closed state, a distance between the hinge pivot shaft center (16) and the door guide surface is C, and a distance C (14) is equal to the distance B (12).

10. The box structure according to claim 8, characterized in that the hinge base (1) is mounted on the box body, and the hinge (3) is mounted on the box door.

11. A box structure according to claim 10, characterized in that the hinge base (1) is connected to the box body rigidly or by means of threaded fasteners.

12. The box structure according to claim 10, characterized in that the hinge (3) is connected to the box door by means of a threaded fastener.

13. A dishwasher, characterized by a tank structure according to any one of claims 8-12, wherein the tank body is a dishwasher liner (10) and the tank body guide surface is a liner guide surface (16);

the door is a door body (5) of the dish washer, and the guide surface of the door is a guide surface (6) of the door body;

the sliding structure is a bowl basket (8) and is arranged in the inner container (10).