阅读说明：本技术 一种铰链组件及安装有该铰链组件的器具 (Hinge assembly and appliance provided with same ) 是由 张磊 刘国荣 何文华 郭国新 毕云龙 王德智 于 2017-02-23 设计创作，主要内容包括：本发明涉及一种铰链组件及安装有该铰链组件的器具,包括固定在本体上的铰链座,在铰链座上设有第一铰链轴,第一铰链轴通过铰链臂与第二铰链轴连接,门体与第二铰链轴转动连接,铰链臂绕第一铰链轴转动,在铰链座和门体之间设置有由第三铰链轴和驱动槽组成的运动副,第三铰链轴位于本体,驱动槽位于门体,驱动槽包括相对设置的第一端及第二端,第一端相较于第二端靠近门体的侧边,当第三铰链轴滑动至第一端后,第三铰链轴在驱动槽内朝向第二端滑动,第二铰链轴靠近第三铰链轴运动。本发明的铰链组件结构简单,使门体开闭更加方便,方便用户使用。(The invention relates to a hinge assembly and an appliance provided with the hinge assembly, and the hinge assembly comprises a hinge seat fixed on a body, wherein a first hinge shaft is arranged on the hinge seat and is connected with a second hinge shaft through a hinge arm, a door body is rotationally connected with the second hinge shaft, the hinge arm rotates around the first hinge shaft, a kinematic pair consisting of a third hinge shaft and a driving groove is arranged between the hinge seat and the door body, the third hinge shaft is positioned on the body, the driving groove is positioned on the door body and comprises a first end and a second end which are oppositely arranged, the first end is close to the side edge of the door body compared with the second end, when the third hinge shaft slides to the first end, the third hinge shaft slides towards the second end in the driving groove, and the second hinge shaft moves close to the third hinge shaft. The hinge assembly provided by the invention has a simple structure, so that the door body can be opened and closed more conveniently, and the hinge assembly is convenient for users to use.)

1. A hinge assembly, characterized by: the door body is characterized by comprising a hinge seat fixed on the body, a first hinge shaft is arranged on the hinge seat and connected with a second hinge shaft through a hinge arm, a door body is rotationally connected with the second hinge shaft, the hinge arm rotates around the first hinge shaft, a kinematic pair consisting of a third hinge shaft and a driving groove is arranged between the hinge seat and the door body, the third hinge shaft is located on the body, the driving groove is located on the door body and comprises a first end and a second end which are oppositely arranged, the first end is close to the side edge of the door body compared with the second end, when the third hinge shaft slides to the first end, the third hinge shaft slides towards the second end in the driving groove, and the second hinge shaft moves close to the third hinge shaft.

2. The hinge assembly of claim 1, wherein the third hinge shaft slides progressively within the drive slot to the first end of the drive slot as the door opens from an initial closed position to a threshold state, and wherein the third hinge shaft slides within the drive slot toward the second end as the door opens to a threshold-crossing state.

3. The hinge assembly of claim 2, wherein the first hinge axis, the second hinge axis, and the third hinge axis are collinear when the door body is in the critical point state.

4. The hinge assembly of claim 1, wherein when the door body is opened from an initial closed position to an initial open position, the third hinge shaft slides within the driving slot toward an end near a side edge of the door body, and the door body is displaced in a first direction parallel to the body and away from an obstacle on the side of the body.

5. The hinge assembly of claim 1, wherein the third hinge shaft slides within the driving slot toward the first end when the door body is opened from an initial closed position to a preliminary opened position, and the door body is displaced within an included angle between a first direction parallel to the body and away from an obstacle on a side of the body and a second direction parallel to the obstacle and away from the body.

6. The hinge assembly of claim 1, wherein a diamond-shaped portion is formed between a transverse edge of a plane of the door body, which is close to a door body front panel of the hinge assembly, and a side edge perpendicular to the transverse edge, an obstacle is disposed on one side of the body, when the door body is opened from an initial closed position to a critical point state, the third hinge shaft gradually slides in the driving groove to the first end, and the diamond-shaped portion moves away from the obstacle.

7. The hinge assembly of claim 6, wherein the third hinge shaft slides toward the second end and the diamond-shaped portion moves toward the obstacle as the door body continues to open up to 90 ° beyond the threshold point.

8. The hinge assembly of claim 7, wherein as the door body continues to open greater than 90 °, the third hinge shaft continues to slide in the drive slot toward the second end and the diamond-shaped portion moves away from the obstruction.

9. The hinge assembly of claim 1, wherein the drive slot is a linear slot, or a curvilinear slot, or a dogleg slot.

10. An utensil, includes body and the door body that connects through the hinge subassembly, its characterized in that: the hinge assembly is as claimed in any one of claims 1 to 9.

Technical Field

The present invention relates to a hinge assembly and also to an appliance fitted with such a hinge assembly.

Background

With the gradual improvement of living standard, users have higher and higher requirements for household appliances such as washing machines, dish washing machines, refrigerators, freezers and the like. Like the most commonly used refrigerators in life, conventional refrigerator doors are all configured as single-shaft structures that rotate around a fixed rotating shaft. The hinge is not only single in structure, but also in the opening process of the door body, the water caltrop part formed between the transverse edge of the plane where the door body front panel of the door body close to the hinge is located and the side edge vertical to the transverse edge can move outwards, the edge of the water caltrop part exceeds the vertical plane where the side wall of the refrigerator body is located, the hinge is not suitable for being installed on an embedded refrigerator or a refrigerator with a small gap between the refrigerator body and a wall body, and the opening angle of the refrigerator door body is limited by the design of the hinge.

Disclosure of Invention

The invention mainly aims to provide a hinge assembly and an appliance provided with the hinge assembly.

In order to accomplish the above objects, an embodiment of the present invention provides a hinge assembly, including a hinge base fixed to a body, the hinge seat is provided with a first hinge shaft, the first hinge shaft is connected with a second hinge shaft through a hinge arm, the door body is rotationally connected with the second hinge shaft, the hinge arm rotates around the first hinge shaft, a kinematic pair consisting of a third hinge shaft and a driving groove is arranged between the hinge seat and the door body, the third hinge shaft is positioned on the body, the driving groove is positioned on the door body and comprises a first end and a second end which are oppositely arranged, the first end is close to the side edge of the door body compared with the second end, after the third hinge shaft slides to the first end, the third hinge shaft slides in the driving groove towards the second end, and the second hinge shaft moves close to the third hinge shaft.

As a further improvement of an embodiment of the present invention, when the door body is opened from the initial closed position to the critical point state, the third hinge shaft gradually slides in the driving groove to the first end of the driving groove, and when the door body is opened to the state of crossing the critical point, the third hinge shaft slides in the driving groove toward the second end.

As a further improvement of an embodiment of the present invention, when the door body is in the critical point state, the first hinge shaft, the second hinge shaft, and the third hinge shaft are located on the same straight line.

As a further improvement of an embodiment of the present invention, when the door body is opened from the initial closed position to the initial opened state, the third hinge shaft slides toward one end close to a side edge of the door body in the driving groove, and the door body is displaced in a first direction, where the first direction is parallel to the body and is away from the obstacle on the side of the body.

As a further improvement of an embodiment of the present invention, when the door body is opened from the initial closed position to the initial opened state, the third hinge shaft slides in the driving groove toward the first end, and the door body is displaced within an included angle range between a first direction and a second direction, where the first direction is parallel to the body and is away from the obstacle on the side of the body, and the second direction is parallel to the obstacle and is away from the body.

As a further improvement of an embodiment of the present invention, a diamond-shaped portion is formed between a lateral side of the door body close to a plane of a door body front panel of the hinge assembly and a lateral side perpendicular to the lateral side, an obstacle is disposed on one side of the body, when the door body is opened from an initial closed position to a critical point state, the third hinge shaft gradually slides to the first end in the driving groove, and the diamond-shaped portion moves in a direction away from the obstacle.

As a further improvement of one embodiment of the present invention, when the door body is opened to 90 ° beyond the critical point, the third hinge shaft slides toward the second end, and the diamond-shaped part moves toward the direction approaching the obstacle.

As a further improvement of one embodiment of the present invention, when the door body is opened further to greater than 90 °, the third hinge shaft slides further toward the second end in the driving groove, and the diamond-shaped part moves away from the obstacle.

As a further improvement of an embodiment of the present invention, the driving groove is a linear groove, a curved groove, or a polygonal groove.

In order to achieve the above object, an embodiment of the present invention provides an appliance, including a body and a door body connected by a hinge assembly, where the hinge assembly is the hinge assembly according to any one of the above technical solutions.

In summary, the hinge assembly and the appliance provided with the hinge assembly provided by the invention have simple structures, and the three hinge shafts are respectively arranged on the body and the door body, and the kinematic pair consisting of the driving groove and the hinge shafts is correspondingly arranged between the door body and the hinge seat, so that the third hinge shaft rotates in the driving groove and slides to provide driving force for the door body while rotating around the first hinge shaft in the opening and closing process of the door body, and the door body generates certain displacement on the horizontal plane, so that the door body does not interfere with an obstacle on one side in the opening process, and a door sealing strip between the body and the door body is not compressed, therefore, the opening and closing of the door body are more convenient, and the function of freely embedding appliances such as a refrigerator and the like can be realized, namely, a user can embed and independently use a common appliance.

The hinge assembly can be installed on household appliances with door bodies, such as washing machines, dish washing machines, refrigerators, freezers and the like, can also be installed on furniture with door bodies, and can also be used for other articles which are mutually rotated to be opened and closed through hinge connection.

Drawings

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

FIG. 2 is a schematic structural view of the hinge assembly of the present invention with the door body in the initial closed position;

FIG. 3 is a schematic structural view of a hinge assembly when the door body of the present invention is in a preliminary open state;

FIG. 4 is a schematic view of the hinge assembly configuration of the door body of the present invention at a threshold point of closest approach to an obstacle;

FIG. 5 is a schematic view of the hinge assembly configuration after the door body of the present invention has crossed a critical point;

FIG. 6 is a schematic view of the hinge assembly structure of the door of the present invention as it opens to 90 degrees;

FIG. 7 is a schematic view of the hinge assembly configuration of the present invention with the door body opened at greater than 90;

fig. 8 is a schematic view of the hinge assembly structure when the door body of the present invention is opened to the maximum angle.

As shown in fig. 1 to 8, a body 1, a door body 2, a hinge assembly 3, a hinge base 4, a vertical plate 4a, a horizontal plate 4b, a first hinge shaft 5, a third hinge shaft 6, a hinge arm 7, a second hinge shaft 8, a driving groove 9, an obstacle 10, and a diamond-shaped part 11.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

as shown in fig. 1, the present invention provides a hinge assembly, which is installed between a body 1 and a door 2, and in this embodiment, the hinge assembly 3 is described in detail by taking a double-door refrigerator as an example, wherein the body 1 refers to a cabinet of the refrigerator, the refrigerator is placed against an obstacle 10, and the obstacle 10 may be a cabinet body when being embedded and a wall body when being arranged close to a wall.

As shown in fig. 2, the hinge assembly 3 includes a hinge base 4 fixed to the body 1, and the hinge base 4 serves to support the entire hinge assembly 3. The hinge base 4 is composed of a vertical plate 4a and a horizontal plate 4b, and the vertical plate 4a and the horizontal plate 4b are integrally formed by bending metal plates or are connected by welding. Wherein the vertical plate 4a is fixed to the body 1 by a fastener such as a screw, and the horizontal plate 4b is parallel to the bottom surface of the door body 2.

A first hinge shaft 5 is vertically fixed on the horizontal plate 4b, the first hinge shaft 5 is connected with a second hinge shaft 8 through a hinge arm 7, the hinge arm 7 is parallel to the bottom surface of the door body 2, the second hinge shaft 8 is vertically and fixedly connected with the hinge arm 7, the hinge arm 7 can rotate 360 degrees around the first hinge shaft 5, a shaft hole (not shown in the figure) is arranged on the bottom surface of the door body 2, and the top of the second hinge shaft 8 is inserted into the shaft hole to realize the 360-degree rotation between the door body 2 and the second hinge shaft 8. A damper (not shown in the figure) can be further arranged between the second hinge shaft 8 and the door body 2, so that the opening and closing process of the door body 2 is more stable, and the door body 2 cannot be damaged due to overlarge door opening and closing force.

A kinematic pair consisting of a third hinge shaft 6 and a driving groove 9 is further disposed between the hinge base 4 and the door body 2, in this embodiment, the third hinge shaft 6 is preferably vertically fixed on the horizontal plate 4b of the hinge base 4, the driving groove 9 is disposed on the bottom surface of the door body 2, and the top of the third hinge shaft 6 is inserted into the driving groove 9.

The driving groove 9 can be a linear groove formed by two parallel edges and two semicircular arcs as shown in fig. 2, the width between the two parallel edges and the radius of the semicircular arc are matched with the third hinge shaft 6, so that the third hinge shaft 6 can slide and rotate smoothly in the driving groove 9, and the phenomenon of large shaking cannot be generated. The driving groove 9 can also adopt a curved groove or a broken line groove, the curved groove can be a section of arc or an S-shaped curve and the like, and the broken line groove can be L-shaped, V-shaped, U-shaped and the like.

When the driving groove 9 is a straight groove, the driving groove is inclined relative to the plane where the front panel of the door body 2 is located, that is, an included angle is formed between the central line of the driving groove 9 and the plane where the front panel of the door body 2 is located.

As shown in fig. 2, when the door 2 is in the initial closing position, the second hinge axis 8 is located on a side of the first hinge axis 5 facing the body 1, and the third hinge axis 6 is located on a side of the first hinge axis 5 facing the obstacle 10. An included angle is formed between the central line of the driving groove 9 and the central line of the hinge arm 7, at this time, the third hinge shaft 6 is positioned at one end of the driving groove 9 far away from the side edge of the door body 2 and has a certain distance from the end part of the end, namely, the third hinge shaft 6 is positioned at a position close to the middle. When the door body 2 is positioned at the initial closing position, a water caltrop part 11 formed between the transverse edge of the plane of the door body front panel of the hinge assembly 3 and the side edge vertical to the transverse edge of the door body 2 contacts with an obstacle 10 at one side.

As shown in fig. 2, in the process of opening and closing the door body 2, when the door body 2 rotates around the first hinge shaft 5, the door body 2 also rotates around the second hinge shaft 8, and simultaneously, the third hinge shaft 6 rotates and slides in the driving groove 9, a driving force is given to the door body 2, so that the door body 2 generates reciprocating displacement in the included angle range (C direction in the figure) between the direction a (the direction parallel to the body 1) and the direction B (the direction parallel to the obstacle 10) shown in fig. 2, and the reciprocating motion of the door body 2 in the direction C and the compound motion of rotating around the first hinge shaft 5 are realized. In the process of opening the door body 2, through the above-mentioned compound motion, the door body 2 generates displacement inward (in the direction away from the barrier 10) in the a direction, and simultaneously the door body 2 generates displacement in the B direction toward the direction away from the body 1, that is, the water caltrop part 11 of the door body 2 also moves outward (in the B direction away from the body 1) while moving in the direction (the a direction) away from the barrier 10, so that the door body 2 does not interfere with the barrier 10 on one side in the opening process, and a door sealing strip (not shown in the figure) between the door body 2 and the body 1 can be effectively prevented from being compressed in the process of opening and closing the door body 2, and further the service life of the door sealing strip can be effectively prolonged.

In order to make the third hinge shaft 6 slide and rotate more smoothly in the driving groove 9, a bearing (not shown) is connected between the end of the third hinge shaft 6 and the driving groove 9.

As shown in fig. 3, when the door body 2 is in the initial opening state, the hinge arm 7 rotates counterclockwise around the first hinge shaft 5 as an axis to drive the door body 2 to rotate around the first hinge shaft 5, at this time, the third hinge shaft 6 slides in the driving slot 9 and rotates at the same time, in the sliding process, the third hinge shaft 6 gives a driving force to the door body 2, the position of the third hinge shaft 6 in the driving slot 9 slides from the initial position close to the middle to the end close to the side edge of the door body 2, so that the door body 2 generates displacement in the range of the included angle between the a direction and the B direction (C direction in the drawing) while rotating around the first hinge shaft 5, and even if the door body 2 generates inward displacement in the a direction (direction away from the obstacle 10) and simultaneously generates displacement in the B direction away from the body 1. At this moment, the water caltrop part 11 of the door body 2 is gradually far away from the barrier 10, and the outermost end of the water caltrop part 11 does not exceed the plane of the outer wall of the body 1 in the opening process, so that the door body 2 does not interfere with the barrier 10 on one side in the opening process, and meanwhile, the door body 2 does not compress a door sealing strip between the door body 2 and the body 1. In this process, although the door body 2 is displaced inward in the horizontal direction, the entire door body 2 does not interfere with the other door body 2 facing thereto.

As shown in fig. 4, the door body 2 is opened to a critical point state, where the water caltrop portion 11 is at a position away from the obstacle 10 by a maximum distance, and the third hinge shaft 6 slides continuously in the driving groove 9 from the middle position in fig. 3 to the end of the other end of the driving groove 9 (i.e. the end close to the side edge of the door body 2), at which time, the driving groove 9 coincides with or is parallel to the hinge arm 7. If a curved slot is used for the drive slot 9, the tangent of the drive slot 9 coincides or is parallel with the hinge arm 7 at this time.

As shown in fig. 5, after the door 2 is opened beyond the critical point, the diamond-shaped portion 11 starts to move from a position far away from the obstacle 10 to a direction close to the obstacle 10, at this time, the third hinge shaft 6 slides back in the driving slot 9, i.e. slides in a direction far away from the side edge of the door 2, and the door 2 continues to rotate around the first hinge shaft 5.

As shown in fig. 6, when the door 2 is opened to 90 °, the door 2 rotates around the first hinge shaft 5, the third hinge shaft 6 slides back to a certain distance in the driving slot 9, and the front panel of the door 2 is parallel to and close to the obstacle 10. At this time, the diamond portion 11 contacts or is closest to the obstacle 10 depending on the size of the hinge assembly 3 itself and the size of the door body 2, and the mounting position of the hinge assembly 3 on the door body 2.

As shown in fig. 7, when the door 2 is opened further to more than 90 °, the door 2 continues to rotate around the first hinge shaft 5, and the third hinge shaft 6 slides back in the driving slot 9 and continues to slide towards the end far away from the side edge of the door 2 through the middle position. In the process, the diamond-shaped part 11 starts to move from a position close to the obstacle 10 to a direction away from the obstacle 10.

As shown in fig. 8, when the door 2 is opened to a maximum angle of 135 °, the door 2 rotates around the first hinge shaft 5, and the third hinge shaft 6 slides back in the driving slot 9 to the end away from the end of the door 2. At this time, the diamond-shaped portions 11 are located farthest from the obstacle 10.

The hinge assembly 3 is simple in structure, the three hinge shafts are respectively arranged on the body 1 and the door body 2, the driving groove 9 is correspondingly arranged on the door body 2, the third hinge shaft 6 rotates and slides in the driving groove 9 to drive the door body 2 to displace on the horizontal plane in the opening and closing process of the door body 2, so that the door body 2 does not interfere with the obstacle 10 on one side in the opening process, the door body 2 is more convenient to open and close, and the function of freely embedding household appliances such as a refrigerator and furniture can be realized, namely, a user can embed and use an ordinary refrigerator and can also independently use the refrigerator.

The invention also provides a device, as shown in fig. 1, the device can be a household appliance including a washing machine, a dish washing machine, a refrigerator and a freezer, the household appliance comprises a body 1 and a door body 2, a hinge assembly 3 is arranged between the body 1 and the door body 2, an upper group of hinge assembly 3 and a lower group of hinge assembly 3 are arranged on one side edge of the door body 2, the gravity centers of the two groups of hinge assemblies 3 are overlapped, and the door body 2 is ensured to be opened and closed stably. The appliance can also be furniture with a door body, such as various cabinets, book cabinets, wardrobes, writing desks, office tables and the like.

Similar solutions can be derived from the solution given in the figures, as described above. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.