CN107815822A - A kind of door hinge components and washing machine - Google Patents

Abstract

The invention belongs to the related field of washing machines, and discloses a door hinge assembly and a washing machine, wherein the door hinge assembly includes a first hinge reinforcement plate, a second hinge reinforcement plate and a hinge, the first hinge reinforcement plate and the second hinge reinforcement plate are connected to each other and Both ends are fixedly connected to the inner frame of the door, and the two ends of the hinge are respectively rotatably connected to the first hinge reinforcement plate and the second hinge reinforcement plate. By fixing the interconnected first hinge reinforcement plate and the second hinge reinforcement plate on the inner frame of the door, and connecting the hinge to the first hinge reinforcement plate and the second hinge reinforcement plate in rotation, the wear of the washing machine door body can be reduced, When the hinge bears an external force, the first hinge reinforcement plate and the second hinge reinforcement plate can share the force they bear on the inner frame of the door, because the contact area between the first hinge reinforcement plate and the second hinge reinforcement plate and the inner frame of the door is smaller Larger, can better reduce the damage of the washing machine door caused by stress concentration, and improve the bearing capacity of the washing machine door when it is impacted by external forces.

Description

A door hinge assembly and washing machine

technical field

The invention relates to the related field of washing machines, in particular to a door hinge assembly and a washing machine.

Background technique

As a product frequently used by users, the door module of the drum washing machine has a high degree of reliability requirements. The door module of the drum washing machine is mostly connected and fixed by the hinge made of metal material to the washing machine cabinet. If it is used repeatedly, it is easy to wear and tear at the contact position, resulting in poor fit. In this case, the overall sinking of the door module will affect the cooperation of the inner parts of the door lock, thereby affecting the door lock of the drum washing machine. During transportation, the washing machine is vulnerable to unexpected strong vibration and impact, and the door module, as an important module at the front of the drum, has a high probability of being damaged by impact. The door module of the drum washing machine is assembled by the window screen, the outer frame, the middle frame, the inner frame, the door hinge, and the glass basin through fixing screws. The door hinge is fixed on the cabinet of the washing machine, and the weight of the entire door module is borne on the door hinge. Usually, the connection with the door hinge is squeezed and fixed together by the inner and outer frames, so that when the observation window is subjected to external force, there will be an inner and outer frame. Under stress, a strong impact will cause the rupture of the inner and outer frames of the plastic material and affect the normal use of the washing machine.

Contents of the invention

The object of the present invention is to provide a door hinge assembly to solve the problems of wear and impact damage of the door body of the washing machine caused by the existing hinge connection method.

Another object of the present invention is to provide a washing machine, comprising the above door hinge assembly.

For reaching this purpose, the present invention adopts following technical scheme:

A door hinge assembly, comprising a first hinge reinforcement plate, a second hinge reinforcement plate and a hinge, the first hinge reinforcement plate and the second hinge reinforcement plate are connected to each other and fixed on the inner frame of the door, the The two ends of the hinge are respectively rotatably connected to the first hinge reinforcing plate and the second hinge reinforcing plate.

As a preference, a hinge sleeve is provided at the unconnected ends of the first hinge reinforcement plate and the second hinge reinforcement plate, the axes of the two hinge sleeves are located on the same straight line, and the two ends of the hinge are respectively rotatably connected to the two hinge sleeves. inside a hinge sleeve.

Preferably, accommodating cavities are formed between the first hinge reinforcement plate and the second hinge reinforcement plate and the inner frame of the door, the hinge includes hinge arms located at both ends, and the hinge arms are rotatably placed in the accommodating cavity.

Preferably, a hinge shaft is fixedly connected to one end of the hinge arm, and the hinge shaft is rotatably arranged in the hinge sleeve.

Preferably, both the first hinge reinforcement plate and the second hinge reinforcement plate are provided with connecting parts, and the two connecting parts are connected to each other and fixedly connected to the inner frame of the door.

Preferably, the two connecting parts are connected to each other through screws, and are fixed on the inner frame of the door through the screws.

Preferably, both the first hinge reinforcement plate and the second hinge reinforcement plate are provided with a limiting structure, and when the hinge rotates relative to the first hinge reinforcement plate and the second hinge reinforcement plate, it is limited by the limiting structure .

Preferably, the inner frame of the door is provided with reticulated reinforcing ribs, and the reticulated reinforcing ribs include reinforcing ribs and meshes surrounded by reinforcing ribs, and the shape of the meshes is triangle, quadrangle or other polygons.

Preferably, the hinge sleeve is made of wear-resistant non-metallic material.

The present invention also provides a washing machine, which includes a door inner frame and a box body, and the above-mentioned door hinge assembly is arranged between the door inner frame and the box body.

By fixing the interconnected first hinge reinforcement plate and the second hinge reinforcement plate on the inner frame of the door, and connecting the hinge to the first hinge reinforcement plate and the second hinge reinforcement plate in rotation, the wear of the washing machine door body can be reduced, And when the hinge is subjected to an external force, the first hinge reinforcement plate and the second hinge reinforcement plate can share the force they bear on the inner frame of the door, and because the first hinge reinforcement plate and the second hinge reinforcement plate are in contact with the inner frame of the door The larger area can better reduce the damage of the washing machine door caused by stress concentration, and greatly improve the bearing capacity of the washing machine door when it is impacted by external forces.

Through the local reinforcement structure of the first hinge reinforcement plate and the second hinge reinforcement plate, the overall bearing capacity of the washing machine door body can be better strengthened, and the requirement of using high-strength engineering plastics for large parts such as the inner frame of the door is avoided. Reduce costs and improve economic benefits.

Description of drawings

Fig. 1 is a schematic diagram of the assembly structure of the door hinge assembly and the door inner frame of the present invention;

Fig. 2 is the enlarged schematic diagram of A place of Fig. 1 of the present invention;

Fig. 3 is a structural cross-sectional view of the connection between the door hinge assembly and the door inner frame of the present invention;

Fig. 4 is a three-dimensional schematic diagram of the connection between the hinge of the present invention and the first hinge reinforcement plate and the second hinge reinforcement plate;

Fig. 5 is a schematic structural view of the first hinge reinforcement plate of the present invention.

In the picture:

1. The first hinge reinforcement plate; 2. The second hinge reinforcement plate; 3. The hinge; 4. The inner frame of the door; 5. The hinge sleeve; 6. The accommodation cavity; 7. The hinge arm; 8. The hinge shaft; 9. Connecting part; 10. Limiting structure; 11. Mesh reinforcing rib.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

The present invention provides a door hinge assembly. In this embodiment, it is mainly used for the connection between the door body and the box body of the washing machine. As shown in Figures 1-3, the door hinge assembly includes a first hinge reinforcement plate 1. The second hinge reinforcement plate 2 and the hinge 3, wherein the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 are connected to each other and fixed on the inner frame 4 of the door of the washing machine, and the two ends of the hinge 3 are respectively connected to the The first hinge reinforcement plate 1 and the second hinge reinforcement plate 2, by setting the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 on the inner frame 4 of the door, can reduce the wear of the door body of the washing machine, and the hinge 3 can bear the external force , the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 can share the force borne by the hinge 3 on the inner frame 4 of the door, and the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 and the inner frame 4 of the door The larger contact area can better reduce the damage of the washing machine door body caused by stress concentration, and improve the bearing capacity of the washing machine door body when it is impacted by external forces.

In this embodiment, as shown in Figure 3, accommodating cavities 6 are formed between the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 and the inner frame 4 of the door, and the hinge 3 includes hinge arms located at both ends. 7 (shown in FIG. 4 ), the above-mentioned hinge arm 7 is rotatably placed in the accommodating cavity 6, and the above-mentioned accommodating cavity 6 is formed so that the hinge arm 7 of the hinge 3 has a room to rotate. In this embodiment, the upper surfaces of the two accommodating cavities 6 are in the same plane and have the same depth, so as to ensure that the two hinged arms 7 have sufficient rotation space when they rotate synchronously.

A hinge shaft 8 is fixedly connected to one end of each hinge arm 7 , and the two hinge shafts 8 are respectively rotatably connected to the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 . In this embodiment, since the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 themselves become part of the accommodation chamber 6, the wear between the hinge shaft 8 of the above-mentioned hinge 3 and the accommodation chamber 6 is reduced, thereby making the washing machine door The body and the box can maintain a good fit for a long time.

Specifically, the above-mentioned first hinge reinforcement plate 1 and second hinge reinforcement plate 2 can be made of sheet metal or high-strength engineering plastics, as shown in Figure 2-4, the first hinge reinforcement plate 1 and the second hinge reinforcement plate The ends of the reinforcing plates 2 that are not connected to each other are provided with hinge sleeves 5 , the axes of the above two hinge sleeves 5 are located on the same straight line, and the two hinge shafts 8 of the hinge 3 are respectively rotatably connected in the two hinge sleeves 5 . The wear between the hinge shaft 8 and the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 can be further reduced by providing the hinge sleeve 5 . Preferably, the above-mentioned hinge cover 5 can be integrally formed with the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2, or can be made of wear-resistant non-metallic material, such as nylon, to improve its wear resistance and buffer the friction generated and external shocks.

Referring to FIG. 5 , a connecting portion 9 is provided on the first hinge reinforcing plate 1 and the second hinge reinforcing plate 2 , specifically, the connecting portion 9 is arranged on the first hinge reinforcing plate 1 and the second hinge reinforcing plate 2 . One end of the hinge sleeve 5 is provided, and the above-mentioned first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 are connected to each other through the respective connection parts 9 by screws, and after the above-mentioned screws pass through the two connection parts 9, they are screwed on the door In vivo frame 4 on. Through holes are also provided on the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2, and the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 can be further fixed on the inner frame of the door by passing through the through holes. 4 on.

Of course, in this embodiment, the connection between the above-mentioned first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 and the door inner frame 4 and the connection between the connecting parts 9 are not limited to the above-mentioned screw connection, and other connections are fixed. The methods are all within the scope of protection of this embodiment, for example, other fastener connections may be used, and methods such as welding or high-strength adhesive may also be used.

In this embodiment, as shown in FIG. 4 and FIG. 5 , both the above-mentioned first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 are provided with a limit structure 10 , and the limit structure 10 is specifically arranged on the first hinge reinforcement plate 1 And the second hinge reinforcement plate 2 is close to the edge side of the door inner frame 4, and the limiting structure 10 is a protruding structure facing the hinge arm 7 of the above-mentioned hinge 3, which is used to limit the hinge arm 7 relative to the first hinge. The rotation angles of the reinforcing plate 1 and the second hinge reinforcing plate 2 further define the opening angle of the washing machine door. Specifically, when the washing machine door is opened, as the opening angle increases, the distance between the limiting structure 10 and the hinge arm 7 becomes closer and closer. When the opening angle of the washing machine door is the largest, the limiting structure 10 can abut against the On the hinge arm 7.

As a preferred technical solution, the present embodiment is also provided with a reticular reinforcing rib 11 on the above-mentioned door inner frame 4, referring to FIG. The shape of the hole is triangle, quadrilateral or other polygons. By setting the mesh reinforcing rib 11, it has the advantages of being able to resist impact and withstand the pull/compression transmitted from the outside. Moreover, the design of the first hinge reinforcement plate 1 and the second hinge reinforcement plate 2 with the mesh reinforcement rib 11 can disperse the force transmitted by the hinge 3 and prevent component failure and damage caused by force concentration.

The present invention also provides a washing machine, including a door inner frame and a box body (not shown in the figure), the above-mentioned door hinge assembly is arranged between the door inner frame and the box body, and the door hinge assembly can strengthen The load-bearing performance of the entire washing machine door body can avoid damage to the washing machine door body due to impact.

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. A door hinge assembly, characterized in that it comprises a first hinge reinforcement plate (1), a second hinge reinforcement plate (2) and a hinge (3), the first hinge reinforcement plate (1) and the second hinge The reinforcement plates (2) are connected to each other and are fixedly connected to the inner frame (4) of the door, and the two ends of the hinge (3) are respectively connected to the first hinge reinforcement plate (1) and the second hinge reinforcement plate (2) in rotation. ). 2. The door hinge assembly according to claim 1, characterized in that a hinge sleeve (5) is provided at the ends of the first hinge reinforcement plate (1) and the second hinge reinforcement plate (2) that are not connected to each other, The axes of the two hinge sleeves (5) are located on the same straight line, and the two ends of the hinge (3) are respectively rotatably connected in the two hinge sleeves (5). 3. The door hinge assembly according to claim 2, characterized in that, the first hinge reinforcement plate (1) and the second hinge reinforcement plate (2) and the door inner frame (4) are each formed with accommodating cavity (6), the hinge (3) includes hinge arms (7) at both ends, and the hinge arms (7) are rotatably placed in the accommodating cavity (6). 4. The door hinge assembly according to claim 3, characterized in that, one end of the hinge arm (7) is fixedly connected with a hinge shaft (8), and the hinge shaft (8) is rotatably arranged on the hinge sleeve (5) inside. 5. The door hinge assembly according to claim 4, characterized in that, the first hinge reinforcing plate (1) and the second hinge reinforcing plate (2) are provided with connecting parts (9), and the two connecting parts (9) are connected with each other and fixedly connected on the door inner frame (4). 6. The door hinge assembly according to claim 5, characterized in that the two connecting parts (9) are connected to each other by screws, and are fixed on the inner frame (4) of the door by the screws. 7. The door hinge assembly according to claim 1, characterized in that, both the first hinge reinforcement plate (1) and the second hinge reinforcement plate (2) are provided with limiting structures (10), and the hinge ( 3) When rotating relative to the first hinge reinforcing plate (1) and the second hinge reinforcing plate (2), it is limited by the limiting structure (10). 8. The door hinge assembly according to claim 1, characterized in that, the inner frame (4) of the door is provided with a mesh reinforcing rib (11), and the mesh reinforcing rib (11) includes reinforcing ribs and reinforcing ribs A mesh surrounded by ribs, the shape of the mesh is triangle, quadrilateral or other polygons. 9. The door hinge assembly according to claim 2, characterized in that, the hinge sleeve (5) is made of wear-resistant non-metallic material. 10. A washing machine, comprising a door inner frame and a box body, characterized in that the door hinge assembly according to any one of claims 1-9 is arranged between the door inner frame and the box body.