Door hinge device of oven and oven

Abstract

The utility model provides a door hinge device of an oven and the oven. A door fixing piece of the door hinge device is arranged on the lower side of a door of the oven. The positioning wedge is arranged on a frame of an oven body of the oven, and the positioning wedge is provided with an inclined surface which is inclined downwards; the cavity connecting piece is located below the positioning wedge, one end of the cavity connecting piece is connected with the door fixing piece, and a positioning groove is formed in the lower portion of the middle of the cavity connecting piece; the positioning plate is arranged on the frame, and the vertical position of the positioning plate on the frame can be adjusted, so that the top of the positioning plate can extend into the positioning groove, the cavity connecting piece is jacked upwards, the top of the cavity connecting piece is in contact with the inclined surface of the positioning wedge, and the cavity connecting piece deflects; and the door fixing piece and the door of the oven are further driven to deflect and cling to the oven body of the oven. The problem that electric appliance doors with cavities such as ovens and microwave ovens are not easy to close tightly or have no closing force after being closed is solved, and leakage of energy such as hot air and microwaves is prevented.

Description

Technical Field

[0001] This utility model relates to the field of oven accessories technology, and in particular to an oven door hinge device and an oven. Background Technology

[0002] In appliances with cavities such as ovens and microwave ovens, hinges are typically used to open and close the doors. There are many types of hinges, including... Figure 1 One type shown is a hinge structure that is easy to assemble and disassemble. When the hinge is assembled onto the front panel of the oven cavity, because this type of hinge has only one support point with the cavity, there will be an angle between the hinge's door fixing component and the front panel of the cavity, resulting in the door not closing tightly. For example, patent application CN217327340U discloses a full-coverage bottom-opening door appliance hinge, including a J-shaped limiting plate to limit the maximum opening angle of the swing arm, ensuring the opening angle is less than 90°. The full cover protects the main compression spring, and by adding mounting holes in the full cover, the connection points between the hinge housing and the oven body are increased, improving the installation stability and safety of the bottom-opening door appliance hinge. However, it cannot solve the problem of the oven door not closing tightly. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide an oven door hinge device and an oven.

[0004] The embodiments of this utility model adopt the following technical solution: a door hinge device for an oven, characterized in that it includes:

[0005] A door fastener is provided on the underside of the oven door;

[0006] A positioning wedge is disposed on the side frame of the oven body, the positioning wedge having a downwardly inclined slope;

[0007] A cavity connector is located below the positioning wedge. One end of the cavity connector is connected to the door fixing member, and a positioning groove is provided in the lower middle part of the cavity connector.

[0008] A positioning plate is disposed on the frame, and the upper and lower positions of the positioning plate on the frame can be adjusted so that the top of the positioning plate can extend into the positioning groove and push the cavity connector upward so that the top of the cavity connector contacts the inclined surface of the positioning wedge, and the cavity connector deflects, thereby causing the door fixing member and the oven door to deflect and fit tightly against the oven body.

[0009] The height position of the cavity connecting piece is adjusted by the up and down movement of the positioning plate, and meanwhile, the up movement distance of the cavity connecting piece is limited by the positioning wedge, so that the cavity connecting piece is deflected, and then the door fixing piece and the door of the oven can be tightly attached to the cabinet when the door of the oven is closed.

[0010] In some embodiments, the door hinge device further comprises a positioning screw;

[0011] The positioning plate is provided with a first positioning hole, the frame is provided with a second positioning hole, and the positioning screw fixes the positioning plate to the frame through the first positioning hole and the second positioning hole.

[0012] After the position of the positioning plate is adjusted to the right position, the positioning plate is fixed to the frame of the cabinet through the cooperation of the positioning screw, the first positioning hole and the second positioning hole.

[0013] In some embodiments, the positioning plate has a protruding part protruding outward along one surface of the positioning plate, and the first positioning hole is arranged on the protruding part.

[0014] The protruding part can enhance the rigidity of the positioning, and facilitate the arrangement of the first positioning hole and the cooperation of the first positioning hole and the second positioning hole.

[0015] In some embodiments, the first positioning hole comprises one and the second positioning hole comprises a plurality, or the first positioning hole comprises a plurality and the second positioning hole comprises one or more, and in the case that the first positioning hole comprises a plurality, the first positioning hole is arranged along the height direction of the protruding part, and in the case that the second positioning hole comprises a plurality, the second positioning hole is arranged along the height direction of the frame.

[0016] The arrangement of a plurality of first positioning holes or second positioning holes can enable the position of the positioning plate to be adjusted in the height direction of the cabinet.

[0017] In some embodiments, one end of the positioning wedge is fixed to the frame, the other end of the positioning wedge extends to the inside of the cabinet, and the other end of the positioning wedge has the inclined surface.

[0018] The inclined surface is arranged at the other end of the positioning wedge, so that the end of the cavity connecting piece cooperating with the inclined surface can be deflected downward during the upward movement of the cavity connecting piece, and then the other side of the cavity connecting piece can be deflected upward, and then the door of the oven can be tightly attached to the cabinet.

[0019] In some embodiments, the top of the cavity connecting piece has an avoidance structure for avoiding the positioning wedge. During the upward pushing of the cavity connecting piece by the positioning plate, the avoidance structure can avoid the interference between the positioning wedge and the cavity connecting piece.

[0020] In some embodiments, the door fixing member is an elongated plate or rod, which extends upward from the bottom of the oven door to the inside of the oven door, and the bottom of the door fixing member is connected to one end of the cavity connecting member. By setting the door fixing member as an elongated plate or rod, the force generated by the deflection of the cavity connecting member can be better transmitted to the oven door, so that the top of the oven door can better fit the cabinet.

[0021] In some embodiments, the positioning slot has a gap between the positioning plate, so that the cavity connecting member can be deflected after being blocked upward by the inclined surface.

[0022] In some embodiments, the positioning slot has a top surface, a first side surface and a second side surface, the first side surface is close to the door fixing member, and the second side surface is close to the cabinet. When the second side surface is attached to the plate surface of the positioning plate on the side of the cabinet, the top of the oven door is tightly attached to the cabinet. When the second side surface is attached to the plate surface of the positioning plate, the cavity connecting member completes the maximum angle deflection, and at this time, the oven door can be tightly attached to the cabinet, avoiding excessive deflection of the cavity connecting member to cause the positioning plate to be extruded and deformed.

[0023] The embodiments of the present application also disclose an oven, which comprises the oven door hinge device according to any one of the above embodiments.

[0024] The embodiments of the present application have the following beneficial effects:

[0025] By adjusting the height position of the cavity connecting member through the up-down movement of the positioning plate, and limiting the upward movement distance of the cavity connecting member through the positioning wedge, the cavity connecting member is deflected, and the door fixing member and the oven door are driven to be tightly attached to the cabinet when the oven door is closed. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technical solutions, the following will briefly introduce the drawings needed to be used in the embodiments or related technical solution descriptions. Obviously, the drawings in the following description are only some embodiments in the present application, and other drawings can also be obtained by those skilled in the art without any creative labor.

[0027] Figure 1 It is a structural schematic diagram of an existing hinge;

[0028] Figure 2 It is a sectional structural schematic diagram of the hinge device of the present application installed on the cabinet of the oven and the positioning plate located at the lowermost position;

[0029] Figure 3 It is the sectional structure schematic view when the hinge device of the utility model is installed on the box body of the oven;

[0030] Figure 4 It is the sectional structure schematic view when the hinge device of the utility model is installed on the box body of the oven and the positioning plate is moved upward;

[0031] Figure 5 It is the side surface structure schematic view of the positioning plate;

[0032] Figure 6 It is the structure schematic view of the positioning plate under another angle;

[0033] Figure 7 It is the top view structure schematic view of Figure 5 ;

[0034] Figure 8 It is the local enlarged view of the cooperation position of the positioning groove and the positioning plate.

[0035] Reference signs: 1, door fixing part; 2, positioning wedge; 201, inclined surface; 3, cavity connecting part; 301, positioning groove; 3011, top surface; 3012, first side surface; 3013, second side surface; 302, avoiding position groove; 4, positioning plate; 401, first positioning hole; 402, convex part; 5, spring; 6, hook fin; 7, rotating shaft; 8, frame; 801, second positioning hole; 9, cavity front plate. DETAILED DESCRIPTION

[0036] The various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0037] It is to be understood that various alterations and modifications can be made to the embodiments disclosed herein. Thus, the foregoing description is to be considered as merely illustrative of the principles of the application and not in limitation thereof. Various modifications of the application will be apparent to the skilled person, without departing from the scope and spirit of the application.

[0038] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the present application and, together with the description given above and the detailed description of the embodiments given below, serve to explain principles of the present application.

[0039] These and other characteristics of the present application will become apparent from the following description of the preferred forms given, by way of non-limiting example only, with reference to the attached drawings.

[0040] It is also to be understood that even though numerous forms of the application have been described specifically that only a few other equivalents will be apparent to those skilled in the art.

[0041] The above and other aspects, features, and advantages of the present application will become more apparent when viewed in connection with the following detailed description, taken in conjunction with the accompanying drawings.

[0042] Specific embodiments of the present application are described hereinbelow with reference to the accompanying drawings; however, it is to be understood that the embodiments described are merely examples of the present application, which can be embodied in various ways. Well-known and / or redundant functions and structures are not described in detail to avoid obscuring the present application needlessly. Therefore, specific structural and functional details disclosed herein are not intended to limit the present application, but merely as a basis for the claims and a representative basis for teaching one skilled in the art to variously employ the present application in virtually any appropriate detailed structure.

[0043] The present specification can use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which can refer to one or more of the same or different embodiments of the application.

[0044] To solve the problems in the background art, the present application provides a door hinge device of an oven. Of course, it can be understood that the door hinge device can also be applied to microwave ovens, light wave ovens, and other household appliances. The present application takes an oven as an example for description. In the present application, the door of the oven is hinged to the lower part of the oven body by the hinge device, that is, the door of the oven can be flipped outward along the position of the hinge device to pull the door of the oven from top to bottom; similarly, when the door of the oven needs to be closed, the door of the oven can be pushed inward from top to bottom. Of course, the door hinge device disclosed in the present application can also be applied to the structure of an oven, microwave oven, light wave oven, and other household appliances with a side-opening door. The present application takes the oven door with a top-and-bottom opening as an example for description.

[0045] Figure 2 、 Figure 3 and Figure 4 As shown in the drawings, the door hinge device of the oven includes a door fixing member 1, a positioning wedge 2, a cavity connecting member 3, and a positioning plate 4.

[0046] The door fixing member 1 is arranged on the lower side of the door of the oven. The door fixing member 1 is fixed together with the door of the oven. As shown in the drawings, a spring 5, a hook fin 6, a rotating shaft 7, and other structural members can also be arranged on the door fixing member 1. One end of the hook fin 6 is connected to the door fixing member 1 through the rotating shaft 7. Through the spring 5, the hook fin 6, and the rotating shaft 7, the opening and closing of the door of the oven can be realized. The opening and closing mode of the door of the oven can adopt the existing structure, which will not be described here. Figure 1 The positioning wedge 2 is arranged on the frame 8 of the oven body. Here, the frame 8 of the oven body can specifically refer to the frame 8 of the lower part of the oven body. As shown in the drawings, the positioning wedge 2 is arranged on the frame 8 of the lower part of the oven body.

[0047] Figure 3 and Figure 4 ​As shown, the positioning wedge 2 has a downwardly inclined slope 201 for limiting the upward movement of the cavity connecting piece 3, while also enabling the cavity connecting piece 3 to deflect downwardly.

[0048] The cavity connecting piece 3 is located below the positioning wedge 2, one end of the cavity connecting piece 3 is connected with the door fixing piece 1, and the other end of the cavity connecting piece 3 can extend into the cabinet through the frame 8 of the cabinet. The middle part of the cavity connecting piece 3 has a positioning groove 301 below, here, the middle part of the cavity connecting piece 3 is not the absolute middle position of the cavity connecting piece 3, but refers to the middle part of the cavity connecting piece 3. Specifically, the positioning groove 301 is located on the inner side of the frame 8, that is, the side of the frame 8 facing the cabinet, so that the positioning plate 4 located on the inner side of the frame 8 can cooperate with the positioning groove 301.

[0049] For example, the positioning plate 4 can also be arranged on the frame 8, and the positioning plate 4 can be adjusted in the up-down position of the frame 8, so that the top of the positioning plate 4 can extend into the positioning groove 301, and the position where the positioning groove 301 and the positioning plate 4 are connected serves as the fulcrum of the hinge device. The positioning plate 4 can push the cavity connecting piece 3 upward, so that the top of the cavity connecting piece 3 is in contact with the slope 201 of the positioning wedge 2, and the cavity connecting piece 3 is deflected, thereby driving the door fixing piece 1 and the door of the oven to deflect and tightly adhere to the cabinet of the oven. Specifically, the front side of the cabinet has a cavity front plate 9, which is part of the cabinet frame 8. In the case of using the above-mentioned hinge device, the door of the oven can tightly adhere to the cavity front plate 9.

[0050] Specifically, when installing the positioning plate 4, the top of the positioning plate 4 is extended into the positioning groove 301 of the cavity connecting piece 3, and the positioning plate 4 is continuously pushed upward, which pushes the cavity connecting piece 3 to move upward, but the cavity connecting piece 3 cannot continue to move upward due to the limitation of the positioning wedge 2. At the same time, when the positioning plate 4 is continuously pushed upward, the cavity connecting piece 3 will be subjected to the force of the slope 201 of the positioning wedge 2, which causes the cavity connecting piece 3 to deflect. Specifically, the end of the cavity connecting piece 3 in contact with the slope 201 deflects downwardly, and the end of the cavity connecting piece 3 connected with the door fixing piece 1 deflects upwardly, thereby driving the door fixing piece 1 and the door of the oven to deflect towards the cabinet of the oven until the door of the oven can tightly adhere to the cabinet of the oven. At this time, the installation position of the positioning plate 4 can be determined, and the positioning plate 4 can be fixed on the frame 8 of the cabinet of the oven.

[0051] The hinge device is used in a pivot structure. By limiting and forcing the cavity connector 3 at one end of the hinge pivot to deflect in a slanting downward direction, and at the same time, the cavity connector 3 at the other end of the hinge pivot to deflect in a slanting upward direction, the hinge device and the oven door are closed towards the oven body, and a tight closing force is generated. The tight closing force is determined by the height of the hinge pivot. The height of the hinge pivot is determined by the height of the positioning plate 4. It should be noted that the slanting downward direction is slanting downward along the direction perpendicular to the inclined surface 201 of the positioning wedge 2.

[0052] The height of the cavity connector 3 is adjusted by the up and down movement of the positioning plate 4. At the same time, the up movement distance of the cavity connector 3 is limited by the positioning wedge 2, so that the cavity connector 3 deflects, and the door fixing member 1 and the oven door are tightly closed to the oven body when the oven door is closed. The problem that the oven door of the oven, microwave oven or other electrical appliances with a cavity is not easy to close tightly, or there is no tight closing force after being closed, is solved, and the leakage of hot air, microwaves and other energy is prevented.

[0053] In some embodiments, the door hinge device further comprises a positioning screw or a positioning pin (not shown in the figure). Taking the positioning screw as an example, as shown in Figure 3 、 Figure 5 、 Figure 6 and Figure 7 , the first positioning hole 401 is arranged on the positioning plate 4, and the second positioning hole 801 is arranged on the frame 8. The positioning screw fixes the positioning plate 4 on the frame 8 through the first positioning hole 401 and the second positioning hole 801. After the position of the positioning plate 4 is adjusted to the right position, the positioning plate 4 is fixed on the frame 8 of the oven body through the cooperation of the positioning screw, the first positioning hole 401 and the second positioning hole 801. The positioning plate 4 has a protruding part 402 protruding outward along one surface of the positioning plate 4, and the first positioning hole 401 is arranged on the protruding part 402. Specifically, the protruding part 402 can be arranged on the surface of the positioning plate 4 facing the oven body, and the protruding part 402 can include two, and the two protruding parts 402 have a certain spacing, so that the hook fin 6 of the hinge device can be arranged between the two protruding parts 402. In addition, the arrangement of the two protruding parts 402 can enhance the rigidity of the positioning plate 4, and facilitate the arrangement of the first positioning hole 401 and the cooperation of the first positioning hole 401 and the second positioning hole 801.

[0054] In order to facilitate adjustment, the height of the positioning plate 4 can be realized by the first positioning hole 401 or other fastening structures with free adjustment position located thereon. Since the hole position on the positioning plate 4 can be freely designed, the size of the door closing force can also be freely designed.

[0055] In some embodiments, the first positioning hole 401 comprises one and the second positioning hole 801 comprises multiple, or the first positioning hole 401 comprises multiple and the second positioning hole 801 comprises one or multiple. In the case that the first positioning hole 401 comprises multiple, the first positioning hole 401 is arranged along the height direction of the protrusion 402, and in the case that the second positioning hole 801 comprises multiple, the second positioning hole 801 is arranged along the height direction of the frame 8. The arrangement of the multiple first positioning holes 401 or the second positioning holes 801 can enable the position of the positioning plate 4 to be adjusted in the height direction of the cabinet. The positioning screw can pass through one first positioning hole 401 on the positioning plate 4 and one second positioning hole 801 on the frame 8 to fix the positioning plate 4 on the frame 8.

[0056] The first positioning hole 401 and the second positioning hole 801 can both be round holes, and further, the second positioning hole 801 can be a threaded hole, and the external thread of the positioning screw can cooperate with the threaded hole.

[0057] The first positioning hole 401 and the second positioning hole 801 can also be arranged as long strip holes, so that one first positioning hole 401 arranged along the height direction of the positioning plate 4 can be arranged on the positioning plate 4, and one second positioning hole 801 arranged in the same direction can be arranged on the frame 8. The positioning screw can pass through the first positioning hole 401 and the second positioning hole 801 after the installation position of the positioning plate 4 is determined, and the positioning plate 4 is fixed on the frame 8 by cooperating with the nut.

[0058] Of course, it can be understood that the up and down position of the positioning plate 4 can also be positioned in other ways, which are only examples and do not limit the scope of protection of the claims.

[0059] In some embodiments, one end of the positioning wedge 2 is fixed on the frame 8, the other end of the positioning wedge 2 extends to the inside of the cabinet, and the other end of the positioning wedge 2 has an inclined surface 201. The inclined surface 201 arranged at the other end of the positioning wedge 2 enables the end of the cavity connecting piece 3 cooperating with the inclined surface 201 to be deflected downward during the upward movement of the cavity connecting piece 3, so that the other side of the cavity connecting piece 3 can be deflected upward, thereby enabling the door of the oven to be tightly attached to the cabinet.

[0060] In some embodiments, the top of the cavity connecting piece 3 has an avoidance structure, and the shape and size of the avoidance structure can be adapted to the outer shape of the positioning wedge 2. The avoidance structure is used to avoid the positioning wedge 2 when the positioning plate 4 pushes the cavity connecting piece 3 to move upward. During the upward pushing of the cavity connecting piece 3 by the positioning plate 4, the avoidance structure can avoid the positioning wedge 2 to avoid interference between the two. For example, as shown in Figure 3 the avoidance structure can be an avoidance groove 302.

[0061] In some embodiments, the door fixing member 1 is an elongated plate or rod, which extends upward from the bottom of the door of the oven to the inside of the door of the oven, and the door of the oven has a cavity capable of accommodating the door fixing member 1. The bottom of the door fixing member 1 is connected to one end of the cavity connecting member 3. By arranging the door fixing member 1 as an elongated plate or rod, the force acting on the cavity connecting member 3 when it is deflected can be better transmitted to the door of the oven, so that the top of the door can better fit the cabinet.

[0062] In some embodiments, the positioning groove 301 has a gap with the positioning plate 4, so that the cavity connecting member 3 can be deflected after being blocked upward by the inclined surface 201. Specifically, as shown in Figure 8 The positioning groove 301 has a top surface 3011, a first side surface 3012 and a second side surface 3013, the first side surface 3012 is close to the door fixing member 1, and the second side surface 3013 is close to the cabinet. When the second side surface 3013 is attached to the plate surface of the positioning plate 4 towards the side of the cabinet, the top of the door of the oven is tightly attached to the cabinet. When the second side surface 3013 is attached to the plate surface of the positioning plate 4, the cavity connecting member 3 completes the maximum angle deflection, at this time, the door of the oven can be tightly attached to the cabinet, and the excessive deflection of the cavity connecting member 3 to the positioning plate 4 can be avoided.

[0063] The embodiments of the present application also disclose an oven comprising the door hinge device of any one of the above embodiments.

[0064] The oven, microwave oven or light wave oven etc. adopting the door hinge device can realize the close closing of the door body, and prevent the leakage of hot air, microwaves and other energy.

[0065] The above describes the multiple embodiments of the present application in detail, but the present application is not limited to these specific embodiments. Based on the concept of the present application, those skilled in the art can make various modifications and embodiments, and these modifications and embodiments should fall within the scope of the present application.

Claims

1. A door hinge device of an oven, characterized in that, The door hinge device comprises: a door fixing member (1) arranged on the lower side of the door of the oven; a positioning wedge (2) arranged on the frame (8) of the oven body, the positioning wedge (2) having a downwardly inclined slope (201); a cavity connecting member (3) located below the positioning wedge (2), one end of the cavity connecting member (3) being connected with the door fixing member (1), and the lower part of the middle part of the cavity connecting member (3) having a positioning groove (301); a positioning plate (4) arranged on the frame (8), the positioning plate (4) being adjustable in the up-down position of the frame (8) so that the top part of the positioning plate (4) can extend into the positioning groove (301) and lift the cavity connecting member (3) upward, the top part of the cavity connecting member (3) being in contact with the slope (201) of the positioning wedge (2), and the cavity connecting member (3) being deflected, thereby driving the door fixing member (1) and the door of the oven to be deflected and closely attached to the oven body.

2. The door hinge device of the oven according to claim 1, characterized in that, The door hinge device further comprises a positioning screw; the positioning plate (4) is provided with a first positioning hole (401), the frame (8) is provided with a second positioning hole (801), and the positioning screw fixes the positioning plate (4) on the frame (8) through the first positioning hole (401) and the second positioning hole (801).

3. The door hinge device of the oven according to claim 2, characterized in that, The positioning plate (4) has a protruding part (402) protruding outward along one plate surface of the positioning plate (4), and the first positioning hole (401) is arranged on the protruding part (402).

4. The door hinge device of the oven according to claim 3, characterized in that, The first positioning hole (401) comprises one and the second positioning hole (801) comprises a plurality, or the first positioning hole (401) comprises a plurality and the second positioning hole (801) comprises one or more, in the case that the first positioning hole (401) comprises a plurality, the first positioning hole (401) is arranged along the height direction of the protruding part (402), and in the case that the second positioning hole (801) comprises a plurality, the second positioning hole (801) is arranged along the height direction of the frame (8).

5. The door hinge apparatus of the oven according to claim 1, characterized in that, One end of the positioning wedge (2) is fixed on the frame (8), the other end of the positioning wedge (2) extends to the inside of the oven body, and the other end of the positioning wedge (2) has the slope (201).

6. The door hinge apparatus of the oven according to claim 1, characterized in that, The top part of the cavity connecting member (3) has a position-avoiding structure for avoiding the positioning wedge (2).

7. The door hinge apparatus of the oven according to claim 1, characterized in that, The door fixing member (1) is an elongated plate or rod, the door fixing member (1) extends upward from the bottom of the door of the oven to the inside of the door of the oven, and the bottom of the door fixing member (1) is connected with one end of the cavity connecting member (3).

8. The door hinge apparatus of the oven according to claim 1, characterized in that, The positioning groove (301) and the positioning plate (4) have a gap, so that the cavity connecting member (3) can be flipped after being blocked upward by the slope (201).

9. The door hinge device of an oven according to claim 1 or 8, characterized in that, The positioning slot (301) has a top surface (3011), a first side surface (3012) and a second side surface (3013), the first side surface (3012) is close to the door fixing part (1), the second side surface (3013) is close to the box body, when the second side surface (3013) is attached to the plate surface of the positioning plate (4) on the side facing the box body, the top of the door of the oven is tightly attached to the box body.

10. An oven, characterized in that The door hinge device of the oven comprises the door hinge device of the oven as claimed in any one of claims 1 to 9.

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