CN217602391U

CN217602391U - Door hinge structure of household appliance

Info

Publication number: CN217602391U
Application number: CN202123305870.4U
Authority: CN
Inventors: 余光成; 陈世光; 刘英骥
Original assignee: Guangdong Canbo Electrical Co ltd
Current assignee: Guangdong Canbo Electrical Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-10-18
Anticipated expiration: 2031-12-24

Abstract

A door hinge structure of a household appliance comprises a box body, a fixed seat and a door body arranged on the front side of the box body, wherein a hinge assembly is arranged between the box body and the door body, the door body is rotatably connected with the box body through the hinge assembly, the hinge assembly comprises a rotating part, a fixed part and a rotating shaft, the rotating part is arranged on the door body, the fixed part is arranged on the fixed seat, and the rotating part and the fixed part are hinged through the rotating shaft; so that the door body can realize closing and opening the inner cavity and can stay at any position. The door body is provided with a positioning seat fixedly connected with the rotating part, the rotating part comprises a connecting arm, and the connecting arm is provided with a limiting part close to the rotating center of the connecting arm so as to realize the limiting of the rotation of the door body. The utility model has the characteristics of structural design is reasonable, low in manufacturing cost, security height and good reliability etc.

Description

Door hinge structure of household appliance

Technical Field

The utility model relates to a household electrical appliances technical field especially relates to a household electrical appliances's hinge structure.

Background

The door body opening mode of the household appliance in the market at present is a side opening door mode and a pull-down door opening mode, the side opening door mode uses a single-shaft hinge, the door body does circular motion around a fixed point of the hinge, the opening angle of the door body can be larger, however, when the door body is opened, the transverse side edge of the door body needs to occupy a certain space, and the door body is very inconvenient for an embedded electric appliance or a user with a narrow space; for the pull-down type door opening mode, when a user uses the pull-down door to close the door, the problem that the pull-down door collides with the box body exists; the problem that the door body can not stop at any position in the middle and is inconvenient to use is solved.

Chinese patent document No. CN211863407U discloses a vertical desktop disinfection cabinet with a lower opening in 11/2020 and 06/specifically discloses a disinfection cabinet comprising a cabinet body and a cabinet door, wherein the cabinet body comprises a shell and an inner container, the inner container is arranged inside the shell, a heating tube is arranged in the inner container, and the lower end part of the cabinet door is connected with the front lower part of the cabinet body through a limit hinge. However, the structure of the limit hinge is complicated and the manufacturing cost is high.

Therefore, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a structural design is reasonable, low in manufacturing cost, high and the strong domestic appliance's of reliability hinge structure of security to overcome the weak point among the prior art.

According to the door hinge structure of this purpose design's domestic appliance, domestic appliance includes box, fixing base and installs the door body at the box front side, its characterized in that: the door body is provided with a hinge assembly, the door body is rotatably connected with the box body through the hinge assembly, the hinge assembly comprises a rotating part, a fixing part and a rotating shaft, the rotating part is arranged on the door body, the fixing part is arranged on the fixing seat, and the rotating part is hinged with the fixing part through the rotating shaft.

The door body is provided with a positioning seat fixedly connected with the rotating part, the rotating part comprises a connecting arm, and a limiting part is arranged on the connecting arm close to the rotating center of the connecting arm so as to realize the limiting of the rotation of the door body.

The limiting part is of a semicircular arc shape.

The fixing seat is provided with a mounting groove for fixing the fixing part, the fixing part is at least provided with two fixing parts, and the fixing parts are respectively aligned and arranged on the mounting groove.

The fixing part comprises a first support and a first support, and the first support is arranged on one side of the first support in an upward bending mode.

The first support and the first support are of an integrated structure.

And a friction washer is arranged between the rotating shaft and one side of the first support.

The door body is parallel to the front side of the box body when being closed, and the door body rotates 90 degrees relative to the front side of the box body when being opened.

And a door handle for pulling the door body is arranged at the top of the door body.

The top of the box body is provided with a first magnetic part, the top of the door body is provided with a second magnetic part corresponding to the position of the first magnetic part, and after the door body is closed, the first magnetic part and the second magnetic part attract each other to realize the sealing between the box body and the door body.

The utility model discloses a domestic appliance's hinge structure, be equipped with the hinge subassembly between the box and the door body, the hinge subassembly is articulated through the axis of rotation between rotation portion, fixed part and the axis of rotation including rotation portion, fixed part and the fixed part to make the door body can realize closing and open the inner chamber, can make the door body stop in any position, rotation portion includes the linking arm, and the linking arm is close to its center of rotation and is equipped with the locating part, with the realization door body pivoted spacing. The novel safety valve has the characteristics of reasonable structural design, low manufacturing cost, high safety, high reliability and the like.

Drawings

Fig. 1 is a schematic view of a closed state of a door according to an embodiment of the present invention.

Fig. 2 is a schematic view of an open state of a door body according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a fixing seat, a door body and a hinge assembly according to an embodiment of the present invention.

Fig. 4 is an enlarged schematic view of a point a in fig. 3.

Fig. 5 is a schematic structural view of a rotating portion and a fixing portion according to an embodiment of the present invention.

Fig. 6 is a schematic view (cross section) of the overall structure according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 6 is:

1-box, 1.1-first magnetic component, 1.2-cavity, 2-fixing seat, 3-door, 3.1-positioning seat, 3.2-second magnetic component, 3.3-door handle, 4-hinge component, 4.1-rotating part, 4.11-connecting arm, 4.12-limiting part, 4.2-fixing part, 4.21-first support, 4.22-first support, 4.3-rotating shaft and 5-friction washer.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 to 6, in one embodiment, a door hinge structure of a household appliance is provided, the household appliance includes a box 1, a fixing seat 2 and a door body 3 installed at the front side of the box 1, a hinge assembly 4 is provided between the box 1 and the door body 3, the door body 3 is rotatably connected to the box 1 through the hinge assembly 4, the hinge assembly 4 includes a rotating portion 4.1, a fixing portion 4.2 and a rotating shaft 4.3, the rotating portion 4.1 is installed on the door body 3, the fixing portion 4.2 is installed on the fixing seat 2, and the rotating portion 4.1 and the fixing portion 4.2 are hinged through the rotating shaft 4.3.

It should be noted that the household appliance may be a disinfection cabinet, a microwave oven, a steam box, a steaming and baking integrated machine, but is not limited to the above household appliance, and other more suitable household appliances may also be selected according to actual requirements.

Specifically, the box 1 is provided with an open-ended inner cavity 1.2, the inner cavity 401 is used for placing tableware, the rotating part 4.1 is arranged on the door body 3, the fixing part 4.2 is arranged on the fixing seat 2, and the rotating part 4.1 on the door body 3 is connected to the fixing part 4.2 on the fixing seat 2 through the rotating shaft 4.3, so that the door body can close and open the inner cavity 1.2, and the door body 3 can stay at any position.

It should be noted that, the box body 1 and the fixing seat 2 are connected by a fastener (such as a screw or a bolt), the connection structure has high connection strength and stability, and can avoid the problem of looseness between the box body 1 and the fixing seat 2, of course, in some other embodiments, the box body 1 and the fixing seat 2 may also adopt other matching manners, such as riveting, buckling or welding, to implement the above functions, and the specific matching manner of the box body 1 and the fixing seat 2 is not limited herein.

Referring to fig. 2 and 5, a positioning seat 3.1 fixedly connected with the rotating portion 4.1 is arranged on the door body 3, the rotating portion 4.1 includes a connecting arm 4.11, and the connecting arm 4.11 is provided with a limiting member 4.12 near the rotating center thereof, so as to limit the rotation of the door body 3.

Specifically, the rotating part 4.1 and the positioning seat 3.1 are connected by fasteners (such as screws or bolts), so that the operation such as maintenance is facilitated; in order to limit the opening angle of the door body 3 and prevent the door body from colliding with other parts, the connecting arm 4.11 is provided with a limiting piece 4.12 close to the rotating center.

Referring to fig. 5, the limiting member 4.12 is of a semi-circular arc type.

It should be noted that the shape of the limiting member 4.12 can also be designed to be rectangular, square, circular, polygonal or other shapes as long as the rotation angle of the door 3 can be limited.

Referring to fig. 4, the fixing base 2 is provided with two mounting grooves 2.1 for fixing the fixing portions 4.2, and the fixing portions 4.2 are at least arranged, and the at least two fixing portions 4.2 are respectively aligned on the mounting grooves 2.1.

Referring to fig. 4, the fixing portion 4.2 includes a first support 4.21 and a first bracket 4.22, and the first bracket 4.22 is bent upward and disposed on one side of the first support 4.21.

In particular, the first support 4.21 and the mounting groove 2.1 are fixed by a fastener (such as a screw or a bolt) or welded.

The first support 4.21 and the first support 4.22 are of one-piece construction. By adopting the design, the production process of the fixing part 4.2 is simple, the production efficiency of the fixing part 4.2 can be improved, and the production cost of the fixing part 4.2 can be reduced; typically, the fixing portion 4.2 is a sheet metal part, which is formed by blanking and bending.

Referring to fig. 4, a friction washer 5 is provided between the rotational shaft 4.3 and one side of the first bracket 4.22.

Referring to fig. 1 and 2, the door 3 is parallel to the front side of the cabinet 1 when closed, and the door 3 is rotated by 90 ° with respect to the front side of the cabinet 1 when opened.

Referring to fig. 2, the top of the door body 3 is provided with a door handle 3.3 for pulling the door body 3. The door body 3 can be opened by pulling the door handle 3 downwards forcibly by hands.

Referring to fig. 6, a first magnetic component 1.1 is arranged at the top of the box body 1, a second magnetic component 3.2 is arranged at the top of the door body 3 corresponding to the first magnetic component 1.1, and the first magnetic component 1.1 and the second magnetic component 3.2 attract each other after the door body 3 is closed, so as to realize the sealing between the box body 1 and the door body 3.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a domestic appliance's door hinge structure, domestic appliance include box (1), fixing base (2) and install door body (3) at box (1) front side, its characterized in that: the refrigerator body (1) with be equipped with hinge subassembly (4) between the door body (3), door body (3) pass through hinge subassembly (4) rotationally connect box body (1), hinge subassembly (4) are including rotating portion (4.1), fixed part (4.2) and axis of rotation (4.3), rotating portion (4.1) install in on the door body (3), fixed part (4.2) install in on fixing base (2), rotating portion (4.1) with pass through between fixed part (4.2) axis of rotation (4.3) are articulated.

2. A door hinge structure of a home appliance according to claim 1, wherein: be equipped with on door body (3) with rotation portion (4.1) fixed connection's positioning seat (3.1), rotation portion (4.1) includes linking arm (4.11), linking arm (4.11) are close to its rotation center and are equipped with locating part (4.12), in order to realize door body (3) pivoted is spacing.

3. A door hinge structure of a home appliance according to claim 2, wherein: the limiting piece (4.12) is of a semi-circular arc shape.

4. A door hinge structure of a home appliance according to claim 1, wherein: be equipped with on fixing base (2) and be used for fixing mounting groove (2.1) of fixed part (4.2), fixed part (4.2) are equipped with two at least, two at least fixed part (4.2) align respectively and set up on mounting groove (2.1).

5. A door hinge structure of a home appliance according to claim 4, wherein: the fixing part (4.2) comprises a first support (4.21) and a first support (4.22), and the first support (4.22) is bent upwards and arranged on one side of the first support (4.21).

6. A door hinge structure of a home appliance according to claim 5, wherein: the first support (4.21) and the first support (4.22) are of an integral structure.

7. A door hinge structure of a home appliance according to claim 6, wherein: and a friction washer (5) is arranged between the rotating shaft (4.3) and one side of the first bracket (4.22).

8. A door hinge structure of a home appliance according to claim 1, wherein: the door body (3) is parallel to the front side of the box body (1) when being closed, and the door body (3) rotates by 90 degrees relative to the front side of the box body (1) when being opened.

9. A door hinge structure of a home appliance according to claim 8, wherein: the top of the door body (3) is provided with a door handle (3.3) used for pulling the door body (3).

10. A door hinge structure of a home appliance according to claim 1, wherein: the top of box (1) is equipped with first magnetic part (1.1), door body (3) top corresponds to the position of first magnetic part (1.1) is equipped with second magnetic part (3.2), the back is closed in door body (3), first magnetic part (1.1) with second magnetic part (3.2) actuation each other, in order to realize box (1) with sealed between the door body (3).