CN112878828B - Hinge assembly and appliance provided with same - Google Patents

Abstract

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, when the door body is opened from an initial closing position to an initial opening state, the third hinge shaft slides in the driving groove, and the second hinge shaft moves away from the third hinge shaft. The invention has simple structure, and the door body does not interfere with an obstacle on one side in the opening process, so that the door body is more convenient to open and close, and the function of freely embedding appliances such as household appliances, furniture and the like can be realized, thereby being convenient for users to use.

Description

A hinge assembly and an appliance equipped with the hinge assembly

technical field

The invention relates to a hinge assembly and an appliance equipped with the hinge assembly.

Background technique

With the gradual improvement of living standards, users have higher and higher requirements for household appliances such as washing machines, dishwashers, refrigerators, and freezers. Like the most commonly used refrigerators in daily life, the traditional refrigerator doors are all arranged in a single-axis structure that rotates around a fixed rotating shaft. This kind of hinge not only has a single structure, but also during the opening process of the door body, the water chestnut part formed between the horizontal side of the plane where the door body front panel of the door body is close to the hinge and the side perpendicular to the horizontal side will move out to the outside. The edge exceeds the vertical plane where the side wall of the box is located. This situation is not suitable for installation on a built-in refrigerator or a refrigerator with a small gap between the box and the wall. This hinge design makes the door of the refrigerator The opening angle is limited.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a hinge assembly and an appliance equipped with the hinge assembly.

In order to achieve the above object, one embodiment of the present invention provides a hinge assembly, including a hinge base fixed on the body, a first hinge shaft is fixed on the hinge base, and the first hinge shaft passes through the hinge arm and the second hinge shaft. connection, the door body is rotatably connected with the second hinge shaft, and the hinge arm rotates around the first hinge shaft. The hinge shaft is located on the body, the driving groove is located on the door body, and when the door body is in the initial closed position, the third hinge shaft is closer to the side of the door body than the second hinge shaft On the other hand, the third hinge shaft rotates and slides in the drive slot to give the door a driving force to cause displacement of the door on the horizontal plane. When the door is opened from the initial closed position to the critical point state, the first The three hinge shafts slide gradually in the drive slot to the end of the drive slot near the side of the door body; when the door body continues to open and crosses the critical point, the third hinge shaft moves outwards in the drive slot. sliding back; when the door body is opened from the initial closed position to the initial open state, the second hinge axis moves away from the third hinge axis in the first direction, the first direction is parallel to the body, when When the door continues to be opened from the initial opening state, the second hinge axis moves close to the third hinge axis in the first direction.

As a further improvement of an embodiment of the present invention, when the door body is at the initial closed position, the third hinge axis is closer to the front panel of the door body than the second hinge axis.

As a further improvement of an embodiment of the present invention, when the door body is opened from the initial closed position to the preliminary open state, the third hinge shaft slides in the drive groove toward the end close to the side of the door body, and the The door body is displaced within an angle range between a first direction and a second direction, the first direction is parallel to the body and away from obstacles on one side of the body, and the second direction is parallel to the obstacles And away from the body.

As a further improvement of an embodiment of the present invention, a water chestnut portion is formed between the lateral edge of the door body near the plane where the door front panel of the hinge assembly is located and the side perpendicular to the lateral edge, and a water chestnut portion is formed on one side of the body. When there is an obstacle, when the door body is opened from the initial closed position to the critical point state, the third hinge shaft gradually slides in the drive slot to the end of the drive slot near the side of the door body, and the The water chestnut portion moves away from the obstacle.

As a further improvement of an embodiment of the present invention, when the door body continues to open beyond the critical point to 90°, the third hinge shaft slides back in the drive groove, and the water chestnut part faces toward the obstacle direction of the object to move.

As a further improvement of an embodiment of the present invention, when the door body continues to open to more than 90°, the third hinge shaft slides in the drive groove to the end away from the side of the door body, and the water chestnut portion Move in a direction away from the obstacle.

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

To achieve the above object, an embodiment of the present invention provides an appliance, comprising a body and a door connected by a hinge assembly, the hinge assembly being the hinge assembly described in any one of the above technical solutions.

In summary, the present invention provides a hinge assembly and an appliance equipped with the hinge assembly, which has a simple structure. Three hinge shafts are respectively arranged on the body and the door body, and correspondingly set between the door body and the hinge seat. The kinematic pair composed of the driving groove and the hinge shaft makes the door body rotate around the first hinge shaft while the third hinge shaft rotates and slides in the driving groove to give the door body a driving force during the opening and closing process, making the door The body produces a certain displacement on the horizontal plane, so that the door body does not interfere with obstacles on one side during the opening process, and at the same time does not compress the door sealing strip between the body and the door body, which not only makes the door body open and close more convenient , and can realize the function that refrigerators and other appliances can be freely embedded, that is, users can buy an ordinary appliance that can be embedded and used independently, and can also be used independently.

The hinge assembly can be installed on household appliances with doors such as washing machines, dishwashers, refrigerators, and freezers, and can also be installed on furniture with doors, and can also be used for other items that can be opened and closed by mutual rotation through hinge connections superior.

Description of drawings

Fig. 1 is a structural schematic diagram of a refrigerator of the present invention;

Fig. 2 is a structural schematic diagram of the hinge assembly when the door body of the present invention is in the initial closed position;

Fig. 3 is a structural schematic diagram of the hinge assembly when the door body of the present invention is in a preliminary opening state;

Fig. 4 is a schematic structural diagram of the hinge assembly when the door body of the present invention is at the critical point closest to the obstacle;

Fig. 5 is a structural schematic diagram of the hinge assembly after the door body of the present invention has crossed the critical point;

Fig. 6 is a structural schematic diagram of the hinge assembly when the door body of the present invention is opened to 90°;

Fig. 7 is a structural schematic diagram of the hinge assembly when the door body of the present invention is opened to more than 90°;

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

As shown in Figures 1 to 8, the body 1, the door body 2, the hinge assembly 3, the hinge seat 4, the vertical plate 4a, the horizontal plate 4b, the first hinge shaft 5, the third hinge shaft 6, the hinge arm 7, the second Hinge shaft 8, drive groove 9, obstacle 10, water chestnut part 11.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

As shown in Figure 1, the present invention provides a hinge assembly installed between the body 1 and the door body 2. In this embodiment, taking a double-door refrigerator as an example, the hinge assembly 3 is described in detail, wherein the body 1 refers to What is shown is the cabinet of the refrigerator, and the refrigerator is placed close to the obstacle 10. The obstacle 10 can be a cabinet when it is embedded and installed or a wall when it is installed against the wall.

As shown in FIG. 2 , the hinge assembly 3 includes a hinge seat 4 fixed on the body 1 , and the hinge seat 4 is used to support the entire hinge assembly 3 . The hinge seat 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 connected by welding. The vertical plate 4a is fixed on the body 1 by fasteners such as screws, and the horizontal plate 4b is parallel to the bottom surface of the door body 2 .

The first hinge shaft 5 is vertically fixed on the horizontal plate 4b, the first hinge shaft 5 is connected with the second hinge shaft 8 through the hinge arm 7, the hinge arm 7 is parallel to the bottom surface of the door body 2, and the second hinge shaft 8 is connected to the hinge shaft 8. The arm 7 is vertically fixedly connected, the hinge arm 7 can rotate 360° around the first hinge axis 5, and an axis hole (not shown in the figure) is provided on the bottom surface of the door body 2, and the top of the second hinge axis 8 is inserted into the axis hole The 360° rotation between the door body 2 and the second hinge axis 8 is realized inside. A damper (not shown) can be further arranged between the second hinge shaft 8 and the door body 2, so that the process of opening and closing the door body 2 is more stable, and the door body 2 will not be damaged due to excessive force of opening and closing the door. .

A kinematic pair consisting of a third hinge shaft 6 and a drive groove 9 is also provided 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. Above, the drive slot 9 is set on the bottom surface of the door body 2 , and the top of the third hinge shaft 6 is inserted into the drive slot 9 .

The driving groove 9 can be a linear groove surrounded by two parallel sides and semicircular arcs at both ends as shown in Figure 2, and the width between the two parallel sides and the radius of the semicircular arc match the third hinge axis 6 , to ensure that the third hinge shaft 6 slides and rotates smoothly in the driving groove 9 without causing large shaking. Drive groove 9 also can adopt curved groove or folding line groove, and curved groove can be a section of arc or S-shaped curve etc., and folding line groove can be shapes such as L shape, V shape, U shape.

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

As shown in Figure 2, when the door body 2 is in the initial closed position, the second hinge axis 8 is located on the side of the first hinge axis 5 facing the body 1, and the third hinge axis 6 is located on the side of the first hinge axis 5 facing the obstacle 10. side. There is an included angle between the centerline of the driving groove 9 and the centerline of the hinge arm 7. At this time, the third hinge shaft 6 is located at the end of the driving groove 9 away from the side of the door body 2 and has a certain distance from the end, namely At this time, the third hinge axis 6 is close to the middle position. When the door body 2 is in the initial closed position, the water chestnut portion 11 formed between the horizontal side of the plane where the front panel of the door body of the door body 2 is close to the hinge assembly 3 and the side perpendicular to the horizontal side contacts the obstacle 10 on one side.

As shown in Figure 2, during the opening and closing process of the door body 2, when the door body 2 rotates around the first hinge shaft 5, it also rotates around the second hinge shaft 8, and at the same time, the third hinge shaft 6 rotates in the drive slot 9 and Slide to give the door body 2 a driving force, so that the door body 2 is within the angle range of the A direction (the direction parallel to the body 1) and the B direction (the direction parallel to the obstacle 10) shown in Figure 2 (Fig. The C direction) produces reciprocal displacement, realizing the reciprocating motion of the door body 2 in the C direction and the compound motion of rotating around the first hinge axis 5 . During the opening process of the door body 2, through the above-mentioned compound movement, the door body 2 is displaced inwardly (a direction away from the obstacle 10) in the direction A, and at the same time, the door body 2 is moved away from the main body 1 in the direction B Displacement occurs, that is, the water chestnut portion 11 of the door body 2 moves outward (direction B away from the main body 1) while moving away from the obstacle 10 (direction A), so that the door body 2 does not interfere with the opening process. The interference of the obstacle 10 on one side can also effectively avoid compressing the door sealing strip (not shown in the figure) between the door body 2 and the body 1 during the process of opening and closing the door body 2, thereby effectively increasing the sealing performance of the door sealing strip. service life.

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

As shown in Figure 3, when the door body 2 is in the initial opening state, the hinge arm 7 rotates counterclockwise around the first hinge axis 5, driving the door body 2 to rotate around the first hinge axis 5. At this time, the third hinge The shaft 6 slides in the drive slot 9 and rotates simultaneously. During the sliding process, the third hinge shaft 6 gives a driving force to the door body 2, and the position of the third hinge shaft 6 in the drive slot 9 changes from the initial position close to the middle to One end close to the side of the door body 2 slides, so that the door body 2 is displaced in the angle range between the A direction and the B direction (direction C in the figure) while the door body 2 rotates around the first hinge axis 5, even if the door body 2 While the inward displacement (direction away from the obstacle 10 ) occurs in the A direction, the displacement also occurs in the B direction away from the main body 1 . Now, the water chestnut part 11 of the door body 2 is gradually away from the obstacle 10, and the outermost end of the water chestnut part 11 will not exceed the plane where the outer wall of the body 1 is in the process of opening, so that the door body 2 will not be in contact with the door body 2 in the process of opening. The obstacle 10 on one side interferes, and at the same time, the door body 2 will not compress the door sealing strip between the door body 2 and the body 1 . During this process, although the door body 2 is displaced inward in the horizontal direction, the entire door body 2 will not interfere with another door body 2 on the opposite side.

As shown in Figure 4, the door body 2 is opened to the critical point state, and this critical point state is that the water chestnut part 11 is in the position of the maximum distance away from the obstacle 10, and the third hinge shaft 6 is in the middle position in Figure 3 in the drive groove 9. Continue to slide to the other end (that is, the end near the side of the door body 2) end of the drive groove 9, at this time, the drive groove 9 coincides with the hinge arm 7 or is parallel. If the driving groove 9 adopts a curved groove, the tangent of the driving groove 9 coincides with or is parallel to the hinge arm 7 at this moment.

As shown in Figure 5, after the door body 2 continued to open and crossed the critical point, the water chestnut portion 11 began to move from a position away from the obstacle 10 to a direction close to the obstacle 10. At this time, the third hinge shaft 6 returned in the driving groove 9. Sliding, that is, sliding in a direction away from the side of the door body 2 , the door body 2 continues to rotate around the first hinge axis 5 .

As shown in Figure 6, when the door body 2 continues to open to 90°, the door body 2 continues to rotate around the first hinge shaft 5, and the third hinge shaft 6 slides back to a certain distance in the drive groove 9, and the front panel of the door body 2 Parallel to and close to the obstacle 10. At this time, the water chestnut portion 11 contacts the obstacle 10 or is closest to the obstacle 10, which depends on the size of the hinge assembly 3 itself, the size of the door body 2, and the installation position of the hinge assembly 3 on the door body 2.

As shown in Figure 7, when the door body 2 continues to open to more than 90°, the door body 2 continues to rotate around the first hinge shaft 5, and the third hinge shaft 6 slides back in the drive groove 9 and continues to move away from the door body 2 through the middle position. One end of the side slides. During this process, the water chestnut portion 11 starts to move from a position close to the obstacle 10 to a direction away from the obstacle 10 .

As shown in Figure 8, when the door body 2 continues to open to a maximum angle of 135°, the door body 2 continues to rotate around the first hinge shaft 5, and the third hinge shaft 6 slides back in the drive groove 9 to a position away from the side of the door body 2. end of one end. At this time, the water chestnut portion 11 is at the farthest position from the obstacle 10 .

The above-mentioned hinge assembly 3 has a simple structure. By setting three hinge shafts on the body 1 and the door body 2 respectively, and setting the driving groove 9 on the door body 2 correspondingly, during the opening and closing process of the door body 2, the third hinge shaft 6 Rotating and sliding in the driving slot 9 gives the door body 2 a driving force to cause the door body 2 to be displaced on the horizontal plane, so that the door body 2 does not interfere with the obstacle 10 on one side during the opening process, not only the door body 2 opens It is more convenient to close, and it can realize the function that refrigerators and other household appliances and furniture can be freely embedded, that is, when users buy an ordinary refrigerator, they can be embedded and used, or used independently.

The present invention also provides an appliance. As shown in FIG. 1, the appliance can be a household appliance including a washing machine, a dishwasher, a refrigerator, and a freezer. The appliance includes a body 1 and a door body 2, and the body 1 and the door Hinge assemblies 3 are installed between the body 2, and upper and lower two groups of hinge assemblies 3 are installed on one side of the door body 2, and the centers of gravity of the two groups of hinge assemblies 3 coincide to ensure that the door body 2 is opened and closed smoothly. The appliance can also be furniture with a door body, such as various cabinets, bookcases, wardrobes, writing desks, office desks and the like.

As mentioned above, a similar technical solution can be derived in combination with the content of the solution given in the accompanying drawings. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still within the scope of the technical solutions of the present invention.

Claims (8)

1. A hinge assembly, characterized by: the door body driving mechanism comprises a hinge seat fixed on a body, wherein a first hinge shaft is fixed on the hinge seat, the first hinge shaft 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, when the door body is in an initial closing position, the third hinge shaft is close to the side edge of the door body compared with the second hinge shaft, the third hinge shaft rotates in the driving groove and slides to drive the door body to enable the door body to generate displacement on the horizontal plane, and when the door body is opened from the initial closing position to a critical point state, the third hinge shaft gradually slides to the end part of one end, close to the side edge of the door body, of the driving groove in the driving groove; when the door body is continuously opened and crosses a critical point, the third hinge shaft slides back in the driving groove; when the door body is opened from an initial closing state to a preliminary opening state, the second hinge shaft moves away from the third hinge shaft in a first direction, the first direction is parallel to the body, and when the door body is continuously opened from the preliminary opening state, the second hinge shaft moves close to the third hinge shaft in the first direction.

2. The hinge assembly of claim 1, wherein the third hinge axis is closer to the front panel of the door body than the second hinge axis when the door body is in the initial closed position.

3. The hinge assembly of claim 1, wherein when the door body is opened from an initial closed position to a preliminary opened position, the third hinge shaft slides within the driving groove toward an end near a side edge of the door body, and the door body is displaced within an included angle range 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.

4. The hinge assembly of claim 1, wherein a diamond-shaped portion is formed between a transverse edge of a plane where the door body is close to a door body front panel of the hinge assembly and a side edge perpendicular to the transverse edge, an obstacle is arranged 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 an end portion of the driving groove close to one end of the door body side edge, and the diamond-shaped portion moves towards a direction away from the obstacle.

5. The hinge assembly as claimed in claim 4, wherein when the door body is opened to 90 ° beyond the critical point, the third hinge shaft slides back in the driving groove, and the diamond portion moves toward the direction approaching the obstacle.

6. The hinge assembly of claim 5, wherein when the door body continues to open more than 90 °, the third hinge shaft slides at an end of the driving slot away from the side edge of the door body, and the diamond-shaped portion moves away from the obstacle.

7. The hinge assembly of claim 1, wherein the drive slot is a linear slot, or a curvilinear slot, or a broken line slot.

8. 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 7.

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