CN216008165U

CN216008165U - Automatic slow-opening hinge and household appliance

Info

Publication number: CN216008165U
Application number: CN202120250782.XU
Authority: CN
Inventors: 杨朝伟; 莫陆坪
Original assignee: Dongguan Dingtai Electric Appliance Co ltd
Current assignee: Dongguan Dingtai Electric Appliance Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2022-03-11
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses an automatic slow-opening hinge, which comprises: the device comprises a metal shell, a tension spring and a swing arm, wherein the swing arm is connected with the tension spring through a slow opening assembly and an inner arm support; the slow-opening component comprises: the movable limiting plate, the damper and the damper bracket are arranged on the base; the inner arm support includes: a left side plate and a right side plate; the swing arm is positioned between the left side plate and the right side plate; the inner arm bracket is connected with a pulley through a rotating shaft, and the pulley slides along the side wall of the swing arm; the pulley overcomes the damping of the rotating angle point and moves along the side wall of the swing arm, and the swing arm is switched from a closed state to an open state; further comprising: a door jacking device. According to the utility model, the hinge is combined with the door jacking device, and the door body is jacked open by the door jacking device, so that the arrangement of a handle on the door body can be saved, the material is saved, the cost is reduced, the appearance of the product is simpler and more attractive, and the market competitiveness is improved.

Description

Automatic slow-opening hinge and household appliance

Technical Field

The utility model relates to the technical field of hinges, in particular to an automatic slow-opening hinge and household electrical appliance equipment.

Background

Hinges, also known as hinges, are mechanical devices used to connect two solids and allow rotation between them, and may be constructed of movable components or of foldable materials. Hinges are often used in some kitchen appliances, for example: microwave oven, oven etc. little oven in the market, little steam oven, little oven door such as microwave oven, because the furnace gate is small, it is very narrow and small to leave the installation space who gives the hinge surplus to the hinge generally includes following structure: the shell, install sliding support and head in the shell, the head has the first connecting portion of connecting in the shell and the second connecting portion of being connected with sliding support, and second connecting portion all are stamping forming's orbit groove usually to be provided with the pin joint pole in the orbit inslot, install the extension spring between sliding support's top and the top of shell, its theory of use is: when the head swings, the head rotates around the first connecting part connected with the shell, the rotating process drives the sliding support to move downwards together with the pivoting rod, the tension spring is stretched, and when the head resets, the head resets through the acting force of the tension spring.

When the hinge in the prior art is assembled on household electrical appliances, the household electrical appliances are usually additionally provided with a handle to apply force to open a door body, the additional installation of the handle causes the cost to be improved, and the attractiveness of a product is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides an automatic slow-opening hinge and a household appliance.

In order to achieve the purpose, the utility model adopts the following technical scheme: automatic slow-open hinge includes: the swing arm is rotatably connected to one end of the metal shell, the tension spring is limited at the other end of the metal shell, and the swing arm is connected with the tension spring through the slow opening assembly and the inner arm support; the slow-opening component comprises: the movable limiting plate, the damper and the damper bracket are arranged on the base; the inner arm support includes: a left side plate and a right side plate; the swing arm is positioned between the left side plate and the right side plate; the inner arm bracket is connected with a pulley through a rotating shaft, and the pulley slides along the side wall of the swing arm; the pulley overcomes the damping of the rotating angle point and moves along the side wall of the swing arm, and the swing arm is switched from a closed state to an open state; further comprising: a door jacking device.

In a preferred embodiment, the door lifter comprises: main part and ejector pin, the ejector pin is flexible relative the main part and is removed.

In the preferred technical scheme, the tension spring, the movable limit plate, the inner arm bracket and the swing arm are sequentially connected; the movable limiting plate and the inner arm bracket are integrally connected in a penetrating manner through a first pin; a strip-shaped groove used for limiting movement of the first pin is formed in the metal shell.

In the preferred technical scheme, a cavity for assembling the damper is formed in the damper support, and a groove body for the movable limiting plate to penetrate through is longitudinally formed in the damper support.

In the preferred technical scheme, the damper support is fixedly arranged in the metal shell, and the movable limiting plate triggers the damper when moving along with the swing arm.

In the preferred technical scheme, the lower end of the inner arm support is connected with the swing arm; and a torsion spring used for pressing the pulley on the side wall of the swing arm is arranged on the inner arm support.

An appliance device, comprising: the door body controls the opening/closing of the containing cavity and further comprises the automatic slow-opening hinge.

In the preferred technical scheme, the door jacking device is arranged on a box body, the metal shell is arranged on the door body, and the swing arm is connected to the box body in a limiting manner; when the door body is opened and closed relative to the box body, the swing arm swings relatively.

In the preferred technical scheme, the main body of the door jacking device is fixed in the box body, and the ejector rod of the door jacking device extends out of the box body to eject the door body.

According to the technical scheme, compared with the prior art, the utility model has the following beneficial technical effects:

according to the utility model, the hinge is combined with the door jacking device, and the door body is jacked open by the door jacking device, so that the arrangement of a handle on the door body can be saved, the material is saved, the cost is reduced, the appearance of the product is simpler and more attractive, and the market competitiveness is improved;

in addition, under the action of the slow opening assembly, the door body can be opened and closed slowly, the sound is small, and the using effect is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a schematic view of the present invention assembled to a household appliance;

FIG. 5 is a schematic view of the structure of the push rod extending out to push the door body in the present invention;

FIG. 6 is a schematic view showing the structure of the ejector pin of the present invention when retracted.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

In the description of the present application, it is to be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1-4, the automatic slow-opening hinge includes: metal casing 100, extension spring 200, swing arm 300, slow-opening subassembly 400, inner arm support 500 and top door ware 600.

The metal housing 100 is made of a metal material, and has characteristics of corrosion resistance, high hardness, and the like.

The tension spring 200 is installed in the metal shell 100, and one end of the tension spring 200 is limited at the top end of the metal shell 100, specifically, limited by a rivet.

The swing arm 300 is formed by pressing high-hardness metal, and the swing arm 300 is rotatably connected to the tail end of the metal shell 100 and can swing relative to the metal shell 100; specifically, the metal casing 100 and the swing arm 300 are integrally formed by rivets, and the rotating shaft sleeve 310 is disposed outside the rivets.

The slow opening assembly 400 includes: a movable limit plate 410, a damper 420, and a damper bracket 430; the slow opening assembly 400 is for the hinge to slowly open and slowly close during the opening/closing process. The movable limiting plate 410 is provided with an opening for accommodating the damper 420; the damper support 430 is fixedly installed in the metal casing 100, the fixed installation can be in a mode of fastening, embedding, fixing and the like, a cavity for assembling the damper 420 is formed inside the damper support 430, a groove body 431 for the movable limiting plate 410 to penetrate is longitudinally formed in the damper support 430, the damper support 430 limits the damper 420 in an opening of the movable limiting plate 410, when the movable limiting plate 410 moves along with the swing arm 300, the damper 420 moves in the groove body 431, and when the movable limiting plate 410 moves, the damper 420 is triggered.

When the movable limiting plate 410 is connected specifically, the upper end of the movable limiting plate 410 is connected with the tension spring 200 in a limiting manner, the damper bracket 420 is fixedly installed in the metal shell 100, and the damper bracket 420 can also limit the movable limiting plate 410 to deflect/swing in the metal shell; the movable limiting plate 410 and the inner arm bracket 500 are integrally connected in a penetrating manner through a first pin; a strip-shaped groove 110 for limiting movement of the first pin is arranged on the metal shell 100;

the inner arm support 500 includes: a left side plate 510 and a right side plate 520, the inner wall bracket 500 is installed in the metal casing 100, the swing arm 300 is located between the left side plate 510 and the right side plate 520, and simultaneously, the lower end of the inner wall bracket 500 is connected to the swing arm 300 through a pin.

A pulley 501 is arranged between the left side plate 510 and the right side plate 520, the pulley 501 is mounted on the inner arm support 500 through a rotating shaft 502, meanwhile, a strip-shaped pin groove 502 is formed in the inner arm support 500, and the pulley 501 is limited to have a certain moving range.

The pulley 501 moves along the side wall of the swing arm 300; meanwhile, a torsion spring 503 is arranged in the inner arm bracket 500, and the torsion spring 503 is used for providing pressure to the pulley 501, so that the pulley 501 can be pressed against the side wall of the swing arm 300.

The swing arm 300 is provided with a corner point 301, the pulley 501 overcomes the resistance of the corner point 301, and the swing arm 300 is turned from a closed state to an open state.

The top door 600 is independent of the metal casing 100, is not mounted on the wetted casing 100, and is used to assist in pushing the swing arm 300 to be unfolded with respect to the metal casing 100.

The overhead door operator 600 includes: a main body 610 and a top rod 620, wherein the top rod 620 moves telescopically relative to the main body 610.

The door lifter 600 may be a pressing rebounding device, and the push rod 620 is rebounded and retreated by pressing the push rod 620 with force, and when closed, the push rod 620 is pressed to close.

As shown in fig. 4-6, the automatic slow-opening hinge is applied to a home appliance 700, which includes: the box 710 and the door 720, constitute the appearance chamber in the box 710, door 720 controls the opening/closing that holds the chamber, still includes: the hinge is automatically slowly opened.

The top door device 600 is mounted on the box body 710, the metal casing 100 is mounted on the door body 720, the swing arm 300 is connected to the box body 710 in a limiting manner, and when the door body 720 is opened and closed relative to the box body 710, the swing arm 300 swings relative to the metal casing 100.

Referring to fig. 4, in the closed state, the top rod 620 extends into the main body 610, and the swing arm 300 is in a closed state relative to the metal casing 100; the pulley 501 is located on the left side of the corner point 301, and when the swing arm 300 is switched from the closed state to the open state, the pulley 501 needs to overcome the resistance of the corner point 301;

referring to fig. 5-6, the top rod 620 of the door lifter 600 extends out and acts on the door body 720 when extending out to push the door body 720 to rotate clockwise, when rotating, the metal shell 100 and the swing arm 300 rotate relatively, meanwhile, the pulley 501 can slide as the block of the rotation point 301, when the pulley 501 slides through the rotation point 301, the door body 720 is gradually opened clockwise due to the self-gravity of the door body 720, and the slow opening can be realized under the action of the damper 420 of the slow opening assembly 400 in the opening process;

when the door needs to be closed, the door body 720 is rotated counterclockwise by applying force, and slow closing can be realized under the action of the damper 420 of the slow opening assembly 400; when closed, push ram 620 retracts.

In the above structure, the door lifter can be operated by electric control or by pressing, and the door body 720 is pressed in the closed state to push the push rod 620 inwards, so that the push rod 620 rebounds and pops up to push the door body 720 to open.

When the door body 720 is closed counterclockwise, the push rod 620 is pushed to retract.

The household appliance can be a microwave oven, an oven and the like.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Automatic slow-open hinge includes: metal casing, extension spring and swing arm, swing arm rotatable coupling in metal casing's one end, the extension spring is spacing in metal casing's the other end, its characterized in that:

the swing arm is connected with the tension spring through the slow opening assembly and the inner arm bracket;

the slow-opening component comprises: the movable limiting plate, the damper and the damper bracket are arranged on the base;

the inner arm support includes: a left side plate and a right side plate;

the swing arm is positioned between the left side plate and the right side plate;

the inner arm bracket is connected with a pulley through a rotating shaft, and the pulley slides along the side wall of the swing arm;

the pulley overcomes the damping of the rotating angle point and moves along the side wall of the swing arm, and the swing arm is switched from a closed state to an open state;

further comprising: a door jacking device.

2. The automatic slow release hinge according to claim 1, wherein: the top door device comprises: main part and ejector pin, the ejector pin is flexible relative the main part and is removed.

3. The automatic slow release hinge according to claim 1, wherein: the tension spring, the movable limit plate, the inner arm bracket and the swing arm are sequentially connected; the movable limiting plate and the inner arm bracket are integrally connected in a penetrating manner through a first pin; a strip-shaped groove used for limiting movement of the first pin is formed in the metal shell.

4. The automatic slow release hinge according to claim 1, wherein: the damper support is internally provided with a cavity for assembling the damper, and the damper support is longitudinally provided with a groove body for the movable limiting plate to penetrate through.

5. The automatic slow release hinge according to claim 4, wherein: the damper support is fixedly arranged in the metal shell, and the movable limiting plate triggers the damper when moving along with the swing arm.

6. The automatic slow release hinge according to claim 1, wherein: the lower end of the inner arm bracket is connected with the swing arm; and a torsion spring used for pressing the pulley on the side wall of the swing arm is arranged on the inner arm support.

7. An appliance device, comprising: the refrigerator comprises a refrigerator body and a door body, wherein the refrigerator body is internally provided with a containing cavity, the door body controls the opening/closing of the containing cavity, and the refrigerator is characterized in that: further comprising a self-easing hinge according to any one of claims 1-6.

8. A home appliance according to claim 7, wherein: the door jacking device is arranged on the box body, the metal shell is arranged on the door body, and the swing arm is connected to the box body in a limiting manner; when the door body is opened and closed relative to the box body, the swing arm swings relatively.

9. A home appliance according to claim 8, wherein: the main body of the door jacking device is fixed in the box body, and the ejector rod of the door jacking device extends out of the box body to eject out the door body.