CN209990308U

CN209990308U - Bidirectional damping hinge, door body structure and household appliance

Info

Publication number: CN209990308U
Application number: CN201920182520.7U
Authority: CN
Inventors: 冯浩; 韩照华; 刘文涛; 王友为; 尚波; 杨爱军
Original assignee: Qingdao Haier Intelligent Cooking Appliances Co Ltd; Qingdao Haier Co Ltd
Current assignee: Qingdao Haier Intelligent Cooking Appliances Co Ltd; Qingdao Haier Co Ltd
Priority date: 2019-02-01
Filing date: 2019-02-01
Publication date: 2020-01-24
Anticipated expiration: 2029-02-01

Abstract

The utility model relates to a bidirectional damping hinge, which comprises a base, a swing arm rotatably arranged at one end of the base, and a bidirectional damping component arranged on the base, wherein one end of the bidirectional damping component is connected with the swing arm in a sliding way through a sliding shaft, and the other end of the bidirectional damping component is connected with the base through an elastic element; the bidirectional damping assembly has two extreme positions and has a damping effect when the two-way damping assembly is close to the extreme positions, and the two-way damping assembly can be driven to move between the two extreme positions by rotating the swing arm. The utility model discloses still relate to a door body mechanism who has above-mentioned two-way damping hinge to and a domestic appliance who has above-mentioned door body structure. The utility model discloses open at the hinge or close the in-process and all have the damping effect, the silence is effectual, can effectively avoid a body to bump.

Description

Bidirectional damping hinge, door body structure and household appliance

Technical Field

The utility model relates to a the hinge mechanism, especially a two-way damping hinge, door body structure and domestic appliance.

Background

The hinge is generally commonly used for being connected on a door body or a window body, and along with the improvement of the life quality of people, the function of the hinge is more and more abundant. The existing hinges with the self-closing function can automatically close a door body or a window body after the door body or the window body is opened, but the hinges often generate larger noise when the door body or the window body is closed, in order to reduce the noise when the door is closed, a damper is added to advanced hinges to enable the door body or the window body to be slowly closed, but the advanced hinges generally can only realize one-way damping, have damping effect only when the door body or the window body is closed completely, but do not have damping effect in the process of opening the door or the window, so that when the door is opened with larger force, the door body is easy to collide to generate larger noise, the hinges are easy to damage, the hand feeling of opening the door is not good, particularly for high-end household appliances, good hand feeling of opening the door is very important, and before the user opens the door to the maximum angle, the user is reminded to be very important by changing the hand feeling of opening the door, the existing hinge can not meet the use requirement.

The present invention is provided in view of this point.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a first aim at overcomes prior art's is not enough, provides a two-way damping hinge, opens at the hinge or closes the in-process and all has the damping effect, and the silence is effectual, can effectively avoid a body to bump.

A second object of the present invention is to provide a door structure with the above two-way damping hinge.

A third object of the present invention is to provide a household appliance with the door structure.

In order to realize the purpose of the first utility model, the utility model adopts the following technical scheme:

a bidirectional damping hinge comprises a base, a swing arm rotatably mounted at one end of the base and a bidirectional damping assembly mounted on the base, wherein one end of the bidirectional damping assembly is slidably connected with the swing arm through a sliding shaft, and the other end of the bidirectional damping assembly is connected with the base through an elastic element; the bidirectional damping assembly has two extreme positions and has a damping effect when the two-way damping assembly is close to the extreme positions, and the two-way damping assembly can be driven to move between the two extreme positions by rotating the swing arm.

Further, the bidirectional damping assembly comprises a sliding part which is slidably arranged on the base, a connecting rod which is hinged with one end of the sliding part, and a damper which is arranged on the base; the other end of connecting rod passes through sliding shaft and swing arm sliding connection, the other end of slider passes through elastic element and is connected with the base, and elastic element configuration for with the slider to keeping away from the one side pulling of swing arm, is equipped with a length and is greater than the spacing groove of attenuator on the slider, spacing groove cover is on the attenuator, when the swing arm rotates, drive the slider through the connecting rod and slide, and the slider is sliding when being close extreme position, and the tip and the attenuator emergence contact of spacing groove to compress the attenuator.

Further, the motion range of the swing arm is divided into a first motion area, a second motion area and a third motion area, and in the first motion area and the third motion area, the end part of the limit groove is in contact with the damper; in the second motion area, the end of the limiting groove is separated from the damper.

Further, when the swing arm is in the first motion region, the included angle between the swing arm and the connecting rod is 85-105 degrees, when the swing arm is in the second motion region, the included angle between the swing arm and the connecting rod is 105-160 degrees, and when the swing arm is in the third motion region, the included angle between the swing arm and the connecting rod is 160-177 degrees.

Further, a sliding groove is arranged on the swing arm, and the sliding groove is eccentrically arranged on one side of the swing arm; the sliding shaft is installed in the sliding groove and slides along the sliding groove when the swing arm rotates, and the length of the sliding groove limits the rotating range of the swing arm.

Furthermore, the sliding groove is an arc-shaped groove, one side of the sliding groove, which is close to the bidirectional damping assembly, is provided with a limiting bulge, the limiting bulge enables the curvature of the sliding groove to change, and when the sliding shaft passes through the limiting bulge, the resistance of the sliding shaft is increased.

Furthermore, the bidirectional damping assembly also comprises a clamping seat, the damper is arranged on the base through the clamping seat, and clamping jaws are arranged on two sides of the clamping seat and clamped with the base; the damper is sleeved with a return spring, and a certain gap is reserved between the end part of the damper and the clamping seat, so that the damper can move relatively in the clamping seat.

Further, the sliding part is a long strip-shaped metal plate, the clamping seat is provided with a groove for the sliding part to pass through, the limiting groove is a square through hole formed in the middle of the sliding part, and the damper is located in the square through hole and is compressed when the sliding part slides to a certain position.

Furthermore, still be connected with a spacing jack catch on the swing arm, spacing jack catch rotates through a articulated shaft and is connected with the swing arm, rotates spacing jack catch and can make its card on the connecting rod to the turned angle of restriction swing arm.

In order to realize the purpose of the second utility model, the utility model adopts the following technical scheme:

the door body structure is provided with the bidirectional damping hinge, the bidirectional damping hinge is at least arranged on one side of the door body, and the swinging arm rotates relative to the base when the door body is opened and closed.

a household appliance provided with the door body structure is provided.

Adopt technical scheme after, bring following beneficial effect:

the utility model discloses a two-way damping hinge all has the damping effect opening with closed in-process, can effectively avoid opening the door or closing the door the great noise that produces, and when opening the door, when reaching great angle of opening the door, the user can be reminded to the damping effect of hinge, avoids opening the door the angle too big and causes the impact to door body and hinge, is favorable to prolonging the life of the door body, promotes user's use impression, reaches better result of use, the utility model discloses a door body structure and domestic appliance have had better use owing to used above-mentioned two-way damping hinge, have better use experience, can be better satisfy user's user demand.

Drawings

FIG. 1: the structure diagram of the bidirectional damping hinge of the utility model;

FIG. 2: the explosion diagram of the bidirectional damping hinge of the utility model;

FIG. 3: the utility model discloses a front view of a bidirectional damping hinge;

FIG. 4: is a longitudinal cross-sectional view of fig. 3;

FIG. 5: is a partial enlarged view of fig. 4;

FIG. 6: the swing arm of the two-way damping hinge of the present invention is shown in a first motion zone;

FIG. 7: the swing arm of the two-way damping hinge of the present invention is shown in the second motion zone;

FIG. 8: the swing arm of the two-way damping hinge of the present invention is shown in a third motion zone;

FIG. 9: the structure chart of the damper and the clamping seat of the bidirectional damping hinge of the utility model;

FIG. 10: the utility model discloses a top view of an automatic door opening and closing mechanism;

FIG. 11: the utility model discloses a front view of an automatic door opening and closing mechanism;

FIG. 12: the utility model discloses a general phantom view of an automatic door opening and closing mechanism;

FIG. 13: the structure diagram of the household appliance of the utility model;

wherein: 1. the device comprises a fixed seat 2, a rotating arm 3, a first fixed shaft 4, a transmission piece 5, an elastic piece 6, a connecting piece 7, a second fixed shaft 8, a sliding shaft 9, a limiting hole 10, a third fixed shaft 11, a sliding block 12, a motor driving mechanism 13, a gear box speed reducing structure 14 and a transmission piece driving structure;

100. the device comprises a base 101, a swing arm 102, an elastic element 103, a sliding shaft 104, a limiting claw 105, a sliding part 106, a connecting rod 107, a damper 108, a clamping seat 109, a hinge shaft 101a, a sliding groove 101b, a limiting protrusion 105a, a limiting groove 107a, a return spring 108a and claws.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a bidirectional damping hinge includes a base 100, a swing arm 101, a bidirectional damping assembly, an elastic member 102, a sliding shaft 103, and a restricting pawl 104. The base 100 is a sheet metal member having a shape of a long groove, the swing arm 101 is rotatably mounted at one end of the base 100, and specifically, the swing arm 101 is connected to the base 100 through a hinge shaft 109. The bidirectional damping component is arranged on the base 100, one end of the bidirectional damping component is connected with the swing arm 101 in a sliding mode through a sliding shaft 103, and the other end of the bidirectional damping component is connected with the base 100 through an elastic element 102; the bi-directional damping assembly has two extreme positions and has a damping effect when approaching the extreme positions, and the bi-directional damping assembly is moved between the extreme positions by rotating the swing arm 101.

As shown in fig. 3 and 4, in particular, the bidirectional damping assembly includes a slider 105, a connecting rod 106, a damper 107, and a clamp 108. The sliding part 105 is slidably arranged on the base 100, one end of the sliding part 105 is hinged with the connecting rod 106, and the other end of the sliding part 105 is connected with the base 100 through the elastic element 102; the other end of the connecting rod 106 is slidably connected to the swing arm 101 via a sliding shaft 103. The damper 107 is mounted on the base 100 through a clip 108. Said elastic element 102 is configured to pull the slider 105 to a side away from the swing arm 101, the elastic element 102 being used to reposition the swing arm 101. A limiting groove 105a with a length larger than that of the damper 107 is formed in the sliding part 105, the limiting groove 105a is sleeved on the damper 107, when the swing arm 101 rotates, the connecting rod 106 drives the sliding part 105 to slide, and when the sliding part 105 slides to a position close to a limit position, the end part of the limiting groove 105a is in contact with the damper 107 and compresses the damper 107 to generate a damping effect, so that the rotating speed of the swing arm 101 is reduced.

Preferably, the elastic element 102 is a tension spring, one end of which is hooked on the sliding member 105, and the other end of which is hooked on the base 100. The swing arm 101 needs to be rotated against the force of the tension spring.

As shown in fig. 9, the center axis of the damper 107 is parallel to the sliding direction of the slider 105. Specifically, the clamping seat 108 is a plastic member and has a mounting groove, the damper 107 is placed in the mounting groove, the width of the mounting groove is the same as the outer diameter of the damper 107, the clamping jaws 108a are disposed on two sides of the clamping seat 108 and clamped with the base 100, and the position of the clamping seat 108 is fixed relative to the base 100. A certain gap is left between the end of the damper 107 and the clamping seat 108, so that the damper 107 can move slightly in the clamping seat 108, a return spring 107a is sleeved on the damper 107, the damper 107 can automatically return, and a certain damping effect is generated when the damper 107 is compressed.

As shown in fig. 6, 7, and 8, the range of motion of the swing arm 101 is divided into a first motion region, a second motion region, and a third motion region. In the first motion area and the third motion area, the end of the limit groove 105a is in contact with the damper 107 and generates a squeezing action; in the second motion region, the end of the limiting groove 105a is disengaged from the damper 107, the damper 107 is in a fully extended state, and the swing arm 101 has no damping effect when rotating in the second motion region.

Preferably, when the swing arm 101 is in the first motion region, the included angle between the swing arm 101 and the connecting rod 106 is 85-105 °; when the swing arm 101 is in the second motion area, the included angle between the swing arm 101 and the connecting rod 106 is 105-160 degrees; when the swing arm 101 is in the third motion area, the included angle between the swing arm 101 and the connecting rod 106 is 160-177 °.

The ranges of the first motion area, the second motion area and the third motion area can be adjusted according to requirements.

Referring to fig. 5, in order to avoid the connecting rod 106 from being largely inclined when the swing arm 101 rotates, so that the connecting rod 106 and the slider 105 are kept on the same straight line, a sliding slot 101a is formed on the swing arm 101, the sliding slot 101a is eccentrically disposed on one side of the swing arm 101, the sliding shaft 103 is installed in the sliding slot 101a, and when the swing arm 101 rotates, the sliding shaft 103 slides along the sliding slot 101a, and the length of the sliding slot 101a defines the rotation range of the swing arm 101.

Preferably, the sliding groove 101a is an arc-shaped groove, a limiting protrusion 101b is disposed on a side of the sliding groove 101a close to the connecting rod 106, the limiting protrusion 101b changes a curvature of the sliding groove 101a, and a concave groove for accommodating the sliding shaft 103 is formed on one side of the limiting protrusion 101b, so that the sliding shaft 103 is not easily separated from the concave groove, and a positioning function is achieved. When the sliding shaft 103 passes through the limiting protrusion 101b, the resistance of the sliding shaft 103 increases suddenly, so that the process needs to apply a larger force to the swing arm 101 to enable the sliding shaft 103 to pass through the limiting protrusion 101b, and the action of the limiting protrusion 101b enables the hinge to receive a larger resistance when just opening, so that a better closing effect can be maintained.

Preferably, the slider 105 is an elongated metal plate, the clamping seat 108 is provided with a groove for the slider 105 to pass through, the limiting groove 105a is a square through hole formed in the middle of the slider 105, the damper 107 is located in the square through hole, and when the slider 105 slides to a certain position towards two sides, the end of the damper 107 contacts with the square through hole and generates an acting force to compress the damper 107.

Referring to fig. 6 and 7, the limiting jaw 104 is rotatably connected to the swing arm 101 through a hinge shaft, and when the limiting jaw 104 is rotated, one end of the limiting jaw 104 is clamped between the swing arm 101 and the connecting rod 106, so that an included angle between the swing arm 101 and the connecting rod 106 cannot be further reduced, and thus a rotation angle of the swing arm 101 is limited, and the swing arm 101 stops at a certain fixed position.

The utility model discloses still relate to a door body structure who has above-mentioned two-way damping hinge, two-way damping hinge installs the one side at the door body at least to when the door body is opened and is closed, swing arm 101 takes place to rotate relative base 100, opens and rotates to being close the biggest angle that opens and shuts at the door body, and attenuator 107 will exert the damping effect, and when the door body is close the closed position, attenuator 107 also can exert the damping effect, reduces the closed speed of the door body, noise when reducing the closure.

In one embodiment, the bidirectional damping hinge is installed on one side of the door body, and the other side of the door body is provided with an automatic door opening and closing mechanism.

As shown in fig. 10 to 12, specifically, the automatic door opening mechanism includes a fixed seat 1 and a rotating arm 2, the rotating arm 2 is hinged on the fixed seat 1 through a first fixed shaft 3, and the fixed seat 1 is provided with a switch transmission assembly having an automatic switch function.

The switch transmission assembly comprises a transmission piece 4 and a power assembly, and the power assembly is used for providing power for the transmission piece 4 to enable the transmission piece to slide back and forth. The front end of the transmission piece 4 is fixed with the rotating arm 2, and the rear end of the transmission piece 4 is fixed with the power component. The power component drives the transmission piece 4 to slide back and forth, so that the rotating arm 2 swings along with the sliding of the transmission piece 4, and the opening and closing of the door body are completed. Through this switch door mechanism, but the door body automatic switch need not to set up handle structure, can effectively reduce and occupy the kitchen space, guarantees the whole outward appearance of product, improves the manipulation travelling comfort of complete machine.

The switch transmission assembly further comprises an elastic piece 5, the front end of the elastic piece 5 is connected with the fixing seat 1 in a sliding mode, and the rear end of the elastic piece 5 is fixedly connected with the fixing seat 1.

The front end of the elastic piece 5 is connected to the fixed seat 1 through a sliding shaft 8, and the front end of the elastic piece 5 is hung and buckled on the sliding shaft 8. The fixed seat 1 is provided with a limit hole 9 for limiting the sliding position of the sliding shaft 8. The limiting holes 9 are formed in two side faces of the fixing seat 1, and two ends of the sliding shaft 8 are fixed in the limiting holes 9 respectively.

The rear end of the elastic element 5 is connected to the fixed seat 1 through a third fixed shaft 10, the rear end of the elastic element 5 is hung and buckled on the third fixed shaft 10, and two ends of the third fixed shaft 10 are fixed with two side surfaces of the fixed seat 1.

The rotating arm 2 is connected to the front end of the elastic member 5. Further, the rotating arm 2 is connected to the front end of the elastic member 5 through a connecting member 6, the front end of the connecting member 6 is connected to the rotating arm 2 through a second fixing shaft 7, and the rear end of the connecting member 6 is fixed to the front end of the elastic member 5. The connecting piece 6 is hinged with the rotating arm 2 through a second fixed shaft 7, and when the connecting piece 6 slides along with the transmission piece 4, the rotating arm 2 is pushed to swing. In order to improve the stability, the connecting piece 6 adopts a U-shaped structure.

The rear end of the connecting piece 6 is fixed at the front end of the elastic piece 5 through a sliding block 11, and the front end and the rear end of the sliding block 11 are respectively hinged with the connecting piece 6 and the sliding shaft 8. The sliding block 11 adopts a herringbone structure, the front end of the sliding block is inserted into a U-shaped structure groove of the connecting piece 6 and is hinged with the U-shaped structure groove, and two side surfaces of the rear end of the sliding block are respectively provided with a through hole which is hinged with the sliding shaft 8. The sliding block 11 adopts a structure in the shape of a Chinese character 'ren', which not only completes the connection of the connecting piece 6 and the elastic piece 5, but also avoids the influence on the hanging buckle at the front end of the elastic piece 5, and additionally provides a fixed surface for the fixation between the transmission piece 4 and the sliding block 11.

The front end of the transmission member 4 is fixed to the front end of the elastic member 5, and specifically, the front end of the transmission member 4 is fixedly connected to the sliding block 11. The transmission member 4 is disposed on top of the elastic member 5, penetrates the entire elastic member 5, and has its front end fixed on top of the sliding block 11.

Through setting up connecting piece 6, sliding block 11 can be with the stable transmission to rotor arm 2 of power of driving medium 4, make rotor arm 2 swing more steady.

When the door body needs to be opened, the power component provides power to the transmission part 4, the transmission part 4 slides backwards, the transmission part 4 drives the sliding block 11, the sliding shaft 8 and the connecting piece 6 to slide backwards, and the rotating arm 2 swings the door body to be opened. In the swinging process of the rotating arm 2, the elastic piece 5 is pressed to provide elastic force forwards, the elastic force provided by the elastic piece 5 keeps balance with the gravity of the door body, and the door body can be suspended. And the elasticity provided by the elastic part 5 also reduces the overlarge stress burden on the transmission part 4 and the power assembly due to the overlarge gravity of the door body, and avoids the damage to the door opening and closing mechanism, the door body and the human body of a user due to the fact that the door body is knocked down due to the failure of the power assembly.

When the door body needs to be closed, the power component provides power to the transmission part 4, the transmission part 4 slides forwards, the transmission part 4 drives the sliding block 11, the sliding shaft 8 and the connecting piece 6 to slide forwards, and the rotating arm 2 swings the door body to be closed. The elastic force provided by the elastic piece 5 is combined in the closing process, so that the power provided by the power assembly can be reduced, and the door body is more stable when being closed.

The power assembly comprises a motor driving mechanism 12, a gear box speed reducing structure 13 and a transmission part driving structure 14, wherein a power shaft of the motor driving mechanism 12 is connected with the gear box speed reducing structure 13, a power output end of the gear box speed reducing structure 13 is connected with the transmission part driving structure 14, and the transmission part driving structure 14 is fixed on the fixed seat 1.

The gear box reduction mechanism 13 is connected to the motor drive mechanism 12 to reduce the speed of the high speed rotation provided by the motor. The transmission member driving structure 14 is used for converting the rotational mechanical force into a transverse acting force, and in this embodiment, the transmission member driving structure is a screw structure, and the output end of the transmission member driving structure 14 is connected with the rear end of the transmission member 4.

As shown in fig. 13, the present invention also relates to a household appliance, such as a steam box, an oven, etc., equipped with the door structure.

The above description is an embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and this should also be regarded as the protection scope of the present invention.

Claims

1. A two-way damped hinge, characterized by: the damping device comprises a base, a swinging arm and a bidirectional damping assembly, wherein the swinging arm is rotatably arranged at one end of the base; the bidirectional damping assembly has two extreme positions and has a damping effect when the two-way damping assembly is close to the extreme positions, and the two-way damping assembly can be driven to move between the two extreme positions by rotating the swing arm.

2. The two-way damped hinge according to claim 1, wherein: the bidirectional damping assembly comprises a sliding part, a connecting rod and a damper, wherein the sliding part is slidably arranged on the base; the other end of connecting rod passes through sliding shaft and swing arm sliding connection, the other end of slider passes through elastic element and is connected with the base, and elastic element configuration for with the slider to keeping away from the one side pulling of swing arm, is equipped with a length and is greater than the spacing groove of attenuator on the slider, spacing groove cover is on the attenuator, when the swing arm rotates, drive the slider through the connecting rod and slide, and the slider is sliding when being close extreme position, and the tip and the attenuator emergence contact of spacing groove to compress the attenuator.

3. A two-way damped hinge according to claim 2, wherein: the motion range of the swing arm is divided into a first motion area, a second motion area and a third motion area, and the end part of the limiting groove is contacted with the damper in the first motion area and the third motion area; in the second motion area, the end of the limiting groove is separated from the damper.

4. A two-way damped hinge according to claim 3, wherein: when the swing arm is in the first motion region, the included angle between the swing arm and the connecting rod is 85-105 degrees, when the swing arm is in the second motion region, the included angle between the swing arm and the connecting rod is 105-160 degrees, and when the swing arm is in the third motion region, the included angle between the swing arm and the connecting rod is 160-177 degrees.

5. The two-way damped hinge according to claim 1, wherein: the swing arm is provided with a sliding groove which is eccentrically arranged on one side of the swing arm; the sliding shaft is installed in the sliding groove and slides along the sliding groove when the swing arm rotates, and the length of the sliding groove limits the rotating range of the swing arm.

6. The two-way damped hinge according to claim 5, wherein: the sliding groove is an arc-shaped groove, a limiting bulge is arranged on one side, close to the bidirectional damping assembly, of the sliding groove, the limiting bulge enables the curvature of the sliding groove to change, and when the sliding shaft passes through the limiting bulge, the resistance of the sliding shaft is increased.

7. A two-way damped hinge according to claim 2, wherein: the bidirectional damping assembly also comprises a clamping seat, the damper is arranged on the base through the clamping seat, and clamping jaws are arranged on two sides of the clamping seat and clamped with the base; the damper is sleeved with a return spring, and a certain gap is reserved between the end part of the damper and the clamping seat, so that the damper can move relatively in the clamping seat.

8. The two-way damped hinge according to claim 7, wherein: the sliding part is a long strip-shaped metal plate, the clamping seat is provided with a groove for the sliding part to pass through, the limiting groove is a square through hole arranged in the middle of the sliding part, and the damper is located in the square through hole and is compressed when the sliding part slides to a certain position.

9. A two-way damped hinge according to claim 2, wherein: the swing arm is further connected with a limiting clamping jaw, the limiting clamping jaw is rotatably connected with the swing arm through a hinge shaft, and the limiting clamping jaw can be clamped on the connecting rod by rotating to limit the rotating angle of the swing arm.

10. A door body structure having a two-way damped hinge according to any one of claims 1-9, characterized in that: the two-way damping hinge is at least arranged on one side of the door body, and when the door body is opened and closed, the swinging arm rotates relative to the base.

11. A household appliance, characterized by: the door body structure of claim 10 is configured.