Hinge structure and cooking equipment

Abstract

The utility model provides a hinge structure and cooking equipment, including door subassembly and hinge subassembly, wherein door subassembly is provided in front of door frame and is used for sealing cooking chamber, hinge subassembly is provided on the door frame, door subassembly passes through the hinge subassembly and is articulated with the door frame, hinge subassembly includes door hinge, hinge support and solenoid valve, wherein the hinge support is arranged on the door frame, one end of the door hinge penetrates through the door frame to be connected with the door assembly, and the other end of the door hinge penetrates into the door frame to be connected with the electromagnetic valve. When the door handle is pulled outwards, the electromagnetic valve needs to be controlled firstly to enable the telescopic rod to be changed from the longest to the shortest, the telescopic rod leaves the door hinge, the locking effect on the door hinge is relieved, then the door assembly is pulled downwards, and the door can be opened through two-step operation. Children or personnel who cannot use the equipment can be effectively prevented from opening the door by mistake, and the safety of operators is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen electrical appliances technical field, specifically, relate to a hinge structure and cooking equipment. BACKGROUND

[0002] In the existing cooking electrical appliances, for example, microwave oven, oven, steamer and the like, the door assembly is generally set as a pull-down type, the ordinary pull-down door pulls the door handle outward and downward, and the door assembly is opened outward with the door hinge rotating shaft, so as to open the door assembly and take or place food samples in the cooking cavity.

[0003] The patent with the publication number CN111023181B discloses a cooking electrical appliance and a door body thereof. The door body of the cooking electrical appliance includes a door frame, a door framework for preventing microwave leakage, a door hook assembly, and a limiting piece. During the opening process, when the door frame is opened to a preset position, the limiting piece and the door framework are in mutual contact and drive the door framework to open synchronously. During the opening operation, since the door frame and the door framework are movably connected, the door frame is slightly opened, and the door framework is not opened at the same time. The door framework is still blocked at the opening part of the box to prevent microwave leakage. The existing technology drives the door hook assembly to move correspondingly when the door frame is slightly opened. The door hook assembly is separated from the micro switch to disconnect the microwave circuit. After the microwave circuit is disconnected, the limiting piece and the door framework are in mutual contact and drive the door framework to open synchronously during the continuous opening process of the door frame. In this way, the leakage of microwaves is prevented at the moment of opening the door. However, the pull-down switch structure of the existing technology has only one restriction, and only one step is needed to open the door, i.e., the door handle can be pulled outward to open the door. For the electrical appliance being used, the temperature in the cooking cavity is relatively high at this time. If a child pulls down the door assembly, the cooking cavity can be opened, which has a potential risk of scalding. SUMMARY

[0004] Therefore, the utility model aims at providing a hinge structure and cooking equipment to solve the problem of simple door assembly switch structure, easy to be opened by mistake, and potential risk of scalding in the prior art.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] A hinge structure includes a door assembly and a hinge assembly. The door assembly is arranged in front of a door frame to seal a cooking cavity. The hinge assembly is arranged on the door frame. The door assembly is hinged to the door frame through the hinge assembly. The hinge assembly includes a door hinge, a hinge bracket, and an electromagnetic valve. One end of the door hinge passes through the door frame and is connected to the door assembly. The other end of the door hinge passes through the door frame to the inside of the door frame and is connected to the electromagnetic valve.

[0007] Further, the electromagnetic valve is provided with a telescopic rod, and the telescopic direction of the telescopic rod is perpendicular to the rotating plane of the door hinge.

[0008] Further, the hinge assembly is arranged on at least one side of the lower part of the door frame, a hinge support is arranged on the side of the door frame away from the door assembly, the fixed end of the door hinge passes through the hinge support and is fixed on the door assembly, and the connecting end of the door hinge passes through the hinge support and is selectively connected with or disconnected from the electromagnetic valve.

[0009] Further, the connecting end comprises a guide hook and a lock hole, the guide hook is arranged in a hook structure which is bent upward, and the lock hole is arranged on the guide hook, and the telescopic rod of the electromagnetic valve is connected with the lock hole or the guide hook.

[0010] Further, the hinge support comprises a fixed plate and a protection plate, the fixed plate is parallel to the plane where the door frame is arranged, and the fixed plate is fixedly connected with the door frame, the protection plate is perpendicular to the fixed plate, the protection plate extends to the rear side, and the protection plate is arranged in a structure which is parallel to the rotating plane of the door hinge.

[0011] Further, a shell is arranged on the outer side of the cooking cavity, a bottom plate is arranged on the bottom of the cooking cavity, the lower part of the door frame is connected with the front side of the bottom plate, and the electromagnetic valve is arranged on the bottom plate or the side wall of the shell and close to the lower part.

[0012] Further, the electromagnetic valve is arranged on the bottom plate, and the electromagnetic valve is arranged on the bottom plate close to the edge, and the telescopic rod of the electromagnetic valve is arranged on the side of the electromagnetic valve close to the cooking cavity.

[0013] Further, the bottom plate comprises a body and a side edge, the side edge is arranged in a folded edge which is folded upward, the electromagnetic valve is arranged on the body and abuts against the side edge, the telescopic rod of the electromagnetic valve is arranged on the side away from the side edge, and the telescopic rod is elongated in a direction away from the side edge and perpendicular to the side edge.

[0014] Further, the hinge assembly is arranged on at least one side of the lower part of the door frame.

[0015] Compared with the prior art, the hinge structure has the following advantages:

[0016] On the basis of the traditional door opening structure, an electromagnetic valve is added on the bottom plate, the electromagnetic valve locks the hinge by extending the telescopic rod of the electromagnetic valve into the hinge, thereby locking the door assembly, and the door handle cannot be pulled outwards to open the door.

[0017] The utility model further provides a cooking equipment, including above-mentioned hinge structure, the hinge structure is used for controlling the locking and unlocking of door assembly and cooking equipment.

[0018] The cooking equipment has the same advantages as the hinge structure described above relative to the prior art, and will not be described again here. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A cooking equipment door closing state schematic view is described in the embodiments of the utility model;

[0020] Figure 1a A Figure 1 Partial enlarged view of middle frame selected part;

[0021] Figure 2 A cooking equipment door opening state schematic view is described in the embodiments of the utility model;

[0022] Figure 2a A Figure 2 Partial enlarged view of middle frame selected part.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] 1-door assembly, 2-hinge assembly, 21-door hinge, 22-hinge support, 23-connection end, 231-lock hole, 232-guide hook, 24-electromagnetic valve, 25-telescopic rod, 3-bottom plate, 31-body, 32-side, 4-cooking cavity, 41-side plate, 42-top plate, 5-door frame, 6-door lock assembly, 61-second door hook DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings. In addition, the directions or position relationships mentioned in the embodiments, such as "front", "back", "up", "down", "left", "right", "top end" and "bottom end", refer to the directions or position relationships shown in the drawings. The term "on" means that the components are directly or indirectly supported by each other.

[0026] It should be noted that in the description of the present application, except for explicit provision and limitation, the terms "mount", "connect", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] As shown in Figures 1-2 A hinge structure, comprising a door assembly 1 and a hinge assembly 2, wherein the door assembly 1 is arranged in front of the door frame 5 for sealing the cooking cavity 4 through the door frame 5, the hinge assembly 2 is arranged on the door frame 5, and the door assembly 1 is hinged with the door frame 5 through the hinge assembly 2. The hinge assembly 2 comprises a door hinge 21, a hinge bracket 22 and a solenoid valve 24, wherein the hinge bracket 22 is arranged on the door frame 5, one end of the door hinge 21 is connected with the door assembly 1 through the door frame 5, and the other end of the door hinge 21 is connected with the solenoid valve 24 through the door frame 5 to the inside of the door frame 5. When it is needed to open the door assembly 1, the solenoid valve 24 needs to be removed from the door hinge 21 first, and then the door assembly can be opened by pulling down. Compared with the prior art which only needs one step of pulling down operation to open the door assembly, the solenoid valve is added in the door hinge structure, which can prevent the door assembly from being opened by mistake and increase the safety of the equipment.

[0028] Specifically, the hinge assembly 2 is arranged at least on one side of the lower part of the door frame 5, the hinge bracket 22 is arranged on the side of the door frame 5 away from the door assembly 1, the fixed end of the door hinge 21 is fixed on the door assembly 1 through the hinge bracket 22, and the connecting end 23 of the door hinge 21 is selectively connected with or disconnected from the solenoid valve 24 through the hinge bracket 22. Wherein the end of the door hinge 21 inside the door frame 5 rotates upward with the opening of the door assembly, and rotates downward with the closing of the door assembly and further locks with the solenoid valve 24.

[0029] Wherein the hinge bracket 22 comprises a fixed plate 221 and a protection plate 222, the fixed plate 221 is parallel to the plane where the door frame 5 is located, and the fixed plate 221 is fixedly connected with the door frame 5 through screws or other connecting members. The protection plate 222 is perpendicular to the fixed plate 221, the protection plate 222 extends to the rear side, and the protection plate 222 is arranged in a structure parallel to the rotation plane of the door hinge 21 to protect the rotation of the door hinge 21. Further, the protection plate 222 can be connected and fixed with the side wall of the shell (not shown in the figure) to limit and guide the fixing of the installation position of the hinge bracket 22. Preferably, the hinge bracket 22 in the embodiment is arranged in an integrally formed structure, which is convenient for processing and installation, and can ensure the working stability.

[0030] In the embodiment, the connecting end 23 is provided as a door hook structure, which is locked with the electromagnetic valve 24 when the electromagnetic valve 24 is in the extended state, and is unlocked with the electromagnetic valve 24 when the electromagnetic valve 24 is in the unlocked state. The electromagnetic valve 24 is provided with a telescopic rod 25, the telescopic direction of the telescopic rod 25 is perpendicular to the rotation plane of the door hinge 21, the telescopic rod 25 is fixedly connected with the connecting end 23 when the telescopic rod 25 is in the extended state, and the connection between the telescopic rod 25 and the connecting end 23 is disconnected when the telescopic rod 25 is in the retracted state.

[0031] Further, the connecting end 23 comprises a guide hook 232 and a lock hole 231, wherein the guide hook 232 is provided as an upwardly curved hook structure, the lock hole 231 is provided on the guide hook 232, and the telescopic rod 25 can be connected with the lock hole 231 or the guide hook 232. Preferably, the telescopic rod 25 is connected with the lock hole 231 to ensure the accuracy of the locking and avoid the shaking of the door assembly 1.

[0032] In the embodiment, the cooking cavity 4 comprises a side plate 41, a top plate 42 and a back plate 43, and the space surrounded by the side plate 41, the top plate 42 and the back plate 43 is used for placing food. A heating assembly is arranged on the outer side of the side plate 41 and / or the back plate 43, and the food in the cooking cavity 4 is heated by the heating assembly. Preferably, the heating assembly can be provided as a magnetron assembly, which is connected with the top plate 42 through a waveguide box, and then emits microwaves to the inside of the cooking cavity 3 to heat the food.

[0033] A shell (not shown in the figure) is arranged on the outer side of the cooking cavity 4, and a bottom plate 3 is arranged at the bottom of the cooking cavity 4, and a certain accommodating space is formed between the bottom plate 3 and the bottom wall of the cooking cavity 4, which can be used for installing electrical elements such as heat dissipation components and rotating components. The lower part of the door frame 5 is connected with the front side of the bottom plate 3 to fix the door frame 5.

[0034] The electromagnetic valve 24 is installed on the bottom plate 3 or the side wall (not shown in the figure) of the shell near the lower part, which can realize the connection and fixation with the door hinge 21. Preferably, the electromagnetic valve 24 is installed on the bottom plate 3, and the electromagnetic valve 24 is arranged near the edge of the bottom plate 3, and the telescopic rod 25 is arranged on one side of the electromagnetic valve 24 close to the cooking cavity 4, so that the telescopic direction of the telescopic rod 25 is perpendicular to the rotation direction of the door hinge 21.

[0035] Specifically, the bottom plate 3 comprises a body 41 and a side edge 32, wherein the side edge 32 is provided as a folded edge folded upward, the electromagnetic valve 24 is arranged on the body 41 and abuts against the side edge 32, and the telescopic rod 25 is arranged on a side away from the side edge 32 and extends away from the side edge 32 perpendicularly to the side edge 32. The side edge 32 is arranged in a direction opposite to the extending direction of the telescopic rod, thereby fixing the electromagnetic valve and avoiding dislocation of the electromagnetic valve during telescopic movement of the telescopic rod.

[0036] As an embodiment of the present application, the hinge assembly 2 is arranged on at least one side of the lower part of the door frame 5, for example, can be arranged on both sides of the lower part of the door frame 5, or the hinge assembly 2 can be arranged on both sides of the lower part of the door frame 5, thereby achieving balanced fixation of the door assembly 1 on both sides.

[0037] In the present embodiment, the hinge assembly 2 is arranged at a position close to a corner of the door assembly 1, and optionally, a mechanical rotary locking structure is further arranged at a position close to the corner of the door assembly 1, and the mechanical rotary locking structure can be opened by pulling down the door assembly. When the door assembly needs to be opened, the electromagnetic valve is first released, and then the door assembly is pulled down to open the mechanical rotary locking structure, thereby opening the door assembly.

[0038] Optionally, the mechanical rotary locking structure can be arranged at any position around the door assembly 1, and can achieve locking of the door assembly. Preferably, the mechanical rotary locking structure is arranged at a position opposite to the hinge assembly 1. For example, in the present embodiment, a second door hook 61 is further arranged at a position close to the upper part of the door assembly 1, and a door lock assembly 6 is further arranged on the inner side of the door frame 5 close to the upper part, and the second door hook is optionally connected and fixed with the door lock assembly 6.

[0039] As part of the present application, a cooking device is also provided, which comprises the hinge structure described above, and the hinge structure is used to control locking and unlocking of the door assembly and the cooking device. The cooking device of the present application can be a microwave oven, an electric oven, an electric steamer, etc.

[0040] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various modifications and changes without departing from the spirit and scope of the present application, and therefore the protection scope of the present application should be subject to the scope defined by the claims.

Claims

1. A hinge structure comprising a door assembly (1) and a hinge assembly (2), wherein the door assembly (1) is arranged in front of a door frame (5) for sealing a cooking cavity (4), the hinge assembly (2) is arranged on the door frame (5), the door assembly (1) is hinged with the door frame (5) through the hinge assembly (2), characterized in that, The hinge assembly (2) comprises a door hinge (21), a hinge support (22) and a solenoid valve (24), wherein the hinge support (22) is arranged on the door frame (5), one end of the door hinge (21) is connected with the door assembly (1) through the door frame (5), and the other end of the door hinge (21) is connected with the solenoid valve (24) through the door frame (5) to the inside of the door frame (5).

2. The hinge structure according to claim 1, characterized in that The solenoid valve (24) is provided with a telescopic rod (25), and the telescopic direction of the telescopic rod (25) is perpendicular to the rotation plane of the door hinge (21).

3. The hinge structure according to claim 1, characterized in that, The hinge assembly (2) is arranged at least on one side of the lower part of the door frame (5), the hinge support (22) is arranged on the side of the door frame (5) away from the door assembly (1), the fixed end of the door hinge (21) is fixed on the door assembly (1) through the hinge support (22), and the connecting end (23) of the door hinge (21) is selectively connected or disconnected with the solenoid valve (24) through the hinge support (22).

4. The hinge structure according to claim 3, characterized in that The connecting end (23) comprises a guide hook (232) and a lock hole (231), the guide hook (232) is arranged in a hook-shaped structure bent upward, the lock hole (231) is arranged on the guide hook (232), and the telescopic rod (25) of the solenoid valve (24) is connected with the lock hole (231) or the guide hook (232).

5. The hinge structure according to claim 3, wherein The hinge support (22) comprises a fixed plate (221) and a protection plate (222), the fixed plate (221) is parallel to the plane where the door frame (5) is located, and the fixed plate (221) is fixedly connected with the door frame (5), the protection plate (222) is perpendicular to the fixed plate (221), the protection plate (222) extends to the rear side, and the protection plate (222) is arranged in a structure parallel to the rotation plane of the door hinge (21).

6. The hinge structure according to claim 1, wherein A housing is arranged outside the cooking cavity (4), a bottom plate (3) is arranged at the bottom of the cooking cavity (4), the lower part of the door frame (5) is connected with the front side of the bottom plate (3), and the solenoid valve (24) is installed at the position close to the lower part of the side wall of the bottom plate (3) or the housing.

7. The hinge structure according to claim 6, characterized in that The solenoid valve (24) is installed on the bottom plate (3), and the solenoid valve (24) is arranged at the position close to the edge of the bottom plate (3), and the telescopic rod (25) of the solenoid valve (24) is arranged on the side of the solenoid valve (24) close to the cooking cavity (4).

8. The hinge structure according to claim 6, characterized in that The bottom plate (3) comprises a body (41) and a side edge (32), wherein the side edge (32) is arranged in a folded edge folded upward, the solenoid valve (24) is arranged on the body (41) and abuts against the side edge (32), the telescopic rod (25) of the solenoid valve (24) is arranged on the side away from the side edge (32), and the telescopic rod (25) is perpendicular to the side edge (32) and extends away from the side edge (32).

9. The hinge structure according to claim 1, wherein The hinge assembly (2) is arranged at least on one side of the lower part of the door frame (5).

10. A cooking apparatus, characterized by, A hinge structure as claimed in any one of claims 1 to 9 for controlling the locking and unlocking of a door assembly with a cooking appliance.

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