CN215369310U - Microwave oven hinge - Google Patents

Abstract

The utility model discloses a microwave oven hinge, comprising: the upper end of the inner support is connected into a linear groove at the upper end of the hinge shell through a first rivet, and the first rivet can move along the linear groove; the tail end of the inner support is rotatably connected with the swing head through a second rivet, and meanwhile, the second rivet penetrates through the first arc-shaped groove at the lower end of the hinge shell and can move along the first arc-shaped groove; a second arc-shaped groove is formed in the inner support close to the tail end, the pulley assembly is installed inside the inner support, and the pulley assembly penetrates through the second arc-shaped groove and the hinge shell through a third rivet; the hinge in the prior art is improved, the space required by movement of the inner support during swinging head operation is reduced, and the volume of a product is further saved; meanwhile, the pressure spring assembly and the pulley assembly are both arranged in the inner support, so that the space is saved; the hinge product of the utility model has small volume and is suitable for miniature household appliances, such as microwave ovens and the like.

Description

Microwave oven hinge

Technical Field

The utility model relates to the technical field of hinges, in particular to a microwave oven hinge.

Background

The hinge is a structure for completing the connection between two objects (components) so that the two objects (components) can be opened and closed relatively, the hinge is of various types, and the connection between different objects (components) adopts hinges of different structures. Hinges are applied to small household appliances in the market, such as ovens, steam boxes, microwave ovens and other structures, but the hinges are basically applied to large ovens, microwave ovens and other appliances, and meanwhile, the size (length) of the hinges is large, and small-size hinges are not suitable for small microwave ovens and the like; for example, chinese patent 202020699934.X discloses an enhanced door hinge, comprising: the inner support is provided with a convex part, and when the inner support moves in the shell, the convex part is supported against the inside of the shell; the pressure spring guide rod component acts on the swing arm, the pressure spring guide rod component is connected with the inner support through a first pin, the first pin is connected with the pressure spring guide rod component and a first pin groove penetrating through the inner support, and the first pin moves along the first pin groove; the inner support moves linearly, and the whole hinge has larger volume, so that the hinge is not suitable for products such as microwave ovens, ovens and the like with smaller volume.

SUMMERY OF THE UTILITY MODEL

Accordingly, the present invention is directed to a microwave oven hinge.

In order to achieve the purpose, the utility model adopts the following technical scheme: a microwave oven hinge, comprising: the upper end of the inner support is connected into a linear groove at the upper end of the hinge shell through a first rivet, and the first rivet can move along the linear groove; the tail end of the inner support is rotatably connected with the swing head through a second rivet, and meanwhile, the second rivet penetrates through the first arc-shaped groove at the lower end of the hinge shell and can move along the first arc-shaped groove; the inner support is provided with a second arc-shaped groove close to the tail end, the pulley assembly is installed inside the inner support, and the pulley assembly penetrates through the second arc-shaped groove and the hinge shell through a third rivet; the first arc-shaped groove and the second arc-shaped groove are approximately opposite in direction; when the swing head swings, the second rivet moves along the first arc-shaped groove, the third rivet moves along the second arc-shaped groove, and the swing head drives the inner support to obliquely move in the hinge shell.

In a further technical scheme, the pressure spring assembly comprises: a pressure spring and a pressure spring guide rod; the pulley assembly comprises: pulley block and assemble in the pulley of pulley block.

In a further technical scheme, the pulley seat is arranged in the inner support, and the pulley seat is connected to the second arc-shaped groove of the inner support through the third rivet.

In a further technical scheme, in the swinging process of the swinging head, the pulley slides for a certain distance at least along the end surface of the swinging head.

In a further technical scheme, the one end that the yaw is connected with hinge shell be connecting portion, connecting portion utensil first terminal surface, second terminal surface and third terminal surface, first terminal surface, second terminal surface and third terminal surface are connected in proper order, and are provided with spacing angle between the adjacent terminal surface, when the yaw closed, the pulley conflict in spacing angle.

In a further technical scheme, the upper end of the pressure spring guide rod is limited on the inner support, and the lower end of the pressure spring guide rod is supported on a fourth rivet of the pulley seat; the pulley is arranged on the pulley seat through a fifth rivet.

In a further technical scheme, the third rivet, the fourth rivet and the fifth rivet are in triangular stress distribution, and the pressure spring guide rod is subjected to pressure of the pressure spring and transmits the pressure to the pulley assembly.

In a further technical scheme, a lock catch is arranged on the swinging head.

According to the technical scheme, compared with the prior art, the utility model has the following beneficial technical effects: the hinge in the prior art is improved, the inner support moves obliquely or in a curve when moving in the hinge shell, and compared with linear movement, the hinge can reduce the space required by the movement of the inner support when the swing head moves, thereby saving the volume of a product; meanwhile, the pressure spring assembly and the pulley assembly are both arranged in the inner support, so that the space is saved; the hinge product of the utility model has small volume and is suitable for miniature household appliances, such as a pull-down door body of a microwave oven, an oven, a steam oven and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

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

FIG. 2 is a schematic cross-sectional view of the closed state of the present invention;

FIG. 3 is a schematic cross-sectional view of the expanded state of the present invention;

FIG. 4 is a schematic structural view of the present invention;

FIG. 5 is a block diagram of the hinge in a disassembled position;

fig. 6 is an exploded view of the present invention.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

In the description of the present application, it is to be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

A microwave oven hinge, comprising: the hinge comprises a hinge housing 100, a swing head 200, an inner bracket 300, a pressure spring assembly 400 and a pulley assembly 500.

The hinge housing 100 is made of a high-hardness metal material through pressing, the swing head 200 is also made of a high-hardness metal through pressing, and one end of the swing head 200 is rotatably connected to the tail end of the hinge housing 100 through a rivet;

the inner bracket 300 is installed inside the outer shell 100, and the inner bracket 300 includes: the left side board 301 and the right side board 302 that bilateral symmetry set up to and end panel 303, formed the appearance chamber between left side board 301 and the right side board 302, pressure spring assembly 400 and loose pulley assembly 500 are all installed in the appearance chamber to save hinge housing 100's assembly space, shorten hinge housing 100's length, with the whole volume that reduces the product.

The upper end of the inner bracket 300 is connected to the linear groove 110 at the upper end of the hinge housing 100 by a first rivet 610, and the first rivet 610 can move along the linear groove 110;

the end of the inner bracket 300 is rotatably connected with the swing head 200 through a second rivet 620, and the second rivet 620 is inserted into the first arc-shaped groove 120 at the lower end of the hinge housing 100 and can move along the first arc-shaped groove 120;

the inner bracket 300 is provided with a second arc-shaped groove 310 near the end, the pulley assembly 500 is installed inside the inner bracket 300, and the pulley assembly 500 is arranged on the second arc-shaped groove 310 and the hinge housing 100 through a third rivet 630; the first and second arcuate slots 120 and 310 are oriented in generally opposite directions.

As shown in fig. 2, in the closed state, the swing head 200 forms an angle of approximately 90 ° with the hinge housing 100, and the upper end of the inner bracket 300 is close to the upper end of the hinge housing 100; as shown in fig. 3, in the unfolded state, the swing head 200 unfolds and swings to drive the inner bracket 300 to move downwards, when the inner bracket 300 moves downwards, the first pin 610 moves downwards along the linear slot 110, the second pin 620 moves from the upper end to the lower end of the first arc-shaped slot 120, and the third pin 630 moves from the lower end to the upper end of the second arc-shaped slot 310; since the first arc-shaped slot 120 and the second arc-shaped slot 310 are arranged in an arc shape and have approximately opposite directions, the inner bracket 300 moves linearly when moving up and down in the hinge housing 100, and swings obliquely or moves in a curved track; the tilting and swinging of the inner bracket 300 requires less linear distance than the linear up and down movement of the inner bracket of the hinge of the conventional structure, and further saves the space required by the hinge housing 100, thereby reducing the volume of the product.

The pressure spring assembly 400 includes: the compression spring 410 is sleeved on the compression spring guide rod 420, the upper end of the compression spring guide rod 420 penetrates through the end face plate 303 of the inner support 300 and is limited, a through hole 3031 is formed in the end face plate 303, the upper half section of the compression spring guide rod 420 is smaller than the lower half section in diameter, and the size of the through hole 3031 is smaller than that of the lower half section, so that after the compression spring guide rod 420 penetrates through the bottom of the end face plate 303, the upper half section of the compression spring guide rod 420 can move up and down in the through hole 3031; the end of the pressure spring guide rod 420 forms a support portion 421, the upper end of the pressure spring 410 is limited by the end plate 303 of the inner bracket 300, the lower end is limited by the support portion 421, and when the inner bracket 300 moves downwards, the pressure spring 410 is compressed.

The sheave assembly 500 includes: a pulley seat 510 and a pulley 520 assembled to the pulley seat 510, wherein the pulley seat 510 is installed in the inner bracket 300, and the pulley seat 510 is connected to the second arc-shaped groove 310 of the inner bracket 300 by the third rivet 630.

During the swinging process of the swinging head 200, the pulley 520 slides for a certain distance at least along the end surface of the swinging head 200.

As shown in fig. 6, an installation space is provided in the pulley seat 510, the upper end of the pressure spring guide rod 420 is limited to the inner support, the lower end of the pressure spring guide rod 420 is supported on the fourth rivet 640 of the pulley seat 510, an insertion hole 511 is formed in the end surface of the pulley seat 510, and the support portion 421 of the pressure spring guide rod 420 passes through the insertion hole 511 and presses against the fourth rivet 640; meanwhile, an arc-shaped groove is formed at the bottom of the supporting part 421, and the fourth rivet 640 is clamped in the arc-shaped groove; the pulley 520 is mounted to the pulley holder 510 by a fifth rivet 650, and the pulley 520 is rotatable.

As shown in fig. 2, in the closed state, the pulley 520 is pressed against the end face of the connecting portion 210 of the swing head 200 by the acting force provided by the compression spring 410, and under the condition of no external force, the swing head 200 is hard to rotate against the resistance of the pulley 520, so as to play a role in limiting, and prevent the swing head 200 from automatically swinging, i.e. prevent the door body from self-opening; under the action of external force, when the swing head 200 rotates anticlockwise in the direction of fig. 2, the pulley 520 rotates against the pressure of the pulley 520, and the pulley 520 moves along the end face of the swing head 200; in fig. 2, the third rivet 630, the fourth rivet 640 and the fifth rivet 650 are distributed in a triangular shape, the third rivet 630 is fixed to the hinge housing 100, and when the swing head 200 rotates, the pulley 520 receives a reverse acting force from the swing head 200, and rotates clockwise by a certain distance with the third rivet 630 as a supporting point, so as to provide a space required by the rotation of the swing head 200, and at the same time, the elastic force of the pressure spring 410 acts on the swing head 200 through the pulley 520.

The swing head 200 rotates anticlockwise to pull the inner support 300 to move downwards, and the pulley seat 510 does not move downwards along with the inner support 300, and the position is limited; as shown in fig. 3, it is apparent that after the swing head 200 is unfolded and the inner bracket 300 is moved down, the inner bracket 300 is tilted in the hinge housing 100; after the swing head 200 is unfolded, the pulley 520 is separated from the end face of the swing head 200, and when the swing head 200 is closed, the inner support 300 moves upwards, and the swing head 200 is in contact with the pulley 520 again.

Further, the end of the swing head 200 connected to the hinge housing 100 is a connecting portion 210, the connecting portion 210 has a first end surface 211, a second end surface 212, and a third end surface 213, the first end surface 211, the second end surface 212, and the third end surface 213 are sequentially connected, a limit angle is disposed between adjacent end surfaces, and when the swing head 200 is closed, the pulley 520 abuts against the limit angle.

Through above-mentioned structure, can reduce the whole volume of product.

Further, the swing head 200 is provided with a lock catch 220, one end of the lock catch 220 is rotatably connected to the swing head 200, and the other end of the lock catch 220 forms a contact end 221, so that when a product needs to be disassembled and assembled, as shown in fig. 5, the lock catch 220 can be rotatably abutted to the hinge housing 100, and the swing head 200 is kept in a half-open state, thereby facilitating the disassembly and assembly.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A microwave oven hinge, comprising: hinge shell (100), assemble in the swingable yaw (200) of hinge shell (100) one end, inner support (300), pressure spring subassembly (400) and loose pulley assembly (500), its characterized in that:

the upper end of the inner support (300) is connected to the linear groove (110) at the upper end of the hinge shell (100) through a first rivet (610), and the first rivet (610) can move along the linear groove (110);

the tail end of the inner support (300) is rotatably connected with the swing head (200) through a second rivet (620), and meanwhile, the second rivet (620) penetrates through the first arc-shaped groove (120) at the lower end of the hinge shell (100) and can move along the first arc-shaped groove (120);

a second arc-shaped groove (310) is formed in the inner support (300) close to the tail end, the pulley assembly (500) is installed inside the inner support (300), and the pulley assembly (500) penetrates through the second arc-shaped groove (310) and the hinge shell (100) through a third rivet (630);

the first arc-shaped groove (120) and the second arc-shaped groove (310) are in approximately opposite directions;

when the swing head (200) swings, the second rivet (620) moves along the first arc-shaped groove (120), the third rivet (630) moves along the second arc-shaped groove (310), and the swing head (200) drives the inner support (300) to obliquely move in the hinge shell (100).

2. The microwave oven hinge according to claim 1, wherein: the pressure spring assembly (400) comprises: a compression spring (410) and a compression spring guide rod (420);

the pulley assembly (500) comprises: a pulley seat (510) and a pulley (520) assembled to the pulley seat (510).

3. The microwave oven hinge according to claim 2, wherein: the pulley seat (510) is arranged in the inner bracket (300), and the pulley seat (510) is connected to the second arc-shaped groove (310) of the inner bracket (300) through the third rivet (630).

4. The microwave oven hinge according to claim 2, wherein: during the swinging process of the swinging head (200), the pulley (520) slides for a certain distance at least along the end surface of the swinging head (200).

5. The microwave oven hinge according to claim 4, wherein: one end that pendulum head (200) and hinge shell (100) be connected is connecting portion (210), connecting portion (210) have first terminal surface (211), second terminal surface (212) and third terminal surface (213), first terminal surface (211), second terminal surface (212) and third terminal surface (213) are connected in proper order, and are provided with the spacing angle between the adjacent terminal surface, pendulum head (200) when closing, pulley (520) contradict in the spacing angle.

6. The microwave oven hinge according to claim 2, wherein: the upper end of the pressure spring guide rod (420) is limited in the inner support, and the lower end of the pressure spring guide rod (420) is supported on a fourth rivet (640) of the pulley seat (510); the pulley (520) is arranged on the pulley seat (510) through a fifth rivet (650).

7. The microwave oven hinge according to claim 6, wherein: triangular stress distribution is formed among the third rivet (630), the fourth rivet (640) and the fifth rivet (650), and the pressure spring guide rod (420) is pressed by the pressure spring (410) and transmits the pressure to the pulley assembly (500).

8. The microwave oven hinge according to claim 1, wherein: the swing head (200) is provided with a lock catch (220).

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