CN220208815U

CN220208815U - Key structure and cooking utensil

Info

Publication number: CN220208815U
Application number: CN202321780593.9U
Authority: CN
Inventors: 向和金; 熊光东; 周建湘
Original assignee: Foshan Haishi Intelligent Electrical Appliance Co ltd
Current assignee: Foshan Haishi Intelligent Electrical Appliance Co ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2023-12-19
Anticipated expiration: 2033-07-07

Abstract

The utility model relates to the technical field of keys, in particular to a key structure and a cooking utensil. A key structure comprises a reset piece, a key support and a key seat; the middle part of the key support is movably connected with the key seat, the key support is provided with a first end and a second end which are opposite, and key contacts are respectively corresponding to the bottoms of the first end and the second end; the reset piece is limited between the first end and the key contact and between the second end and the key contact respectively; when one of the first end and the second end is pressed downwards by external force, the other end is upwards far away from the corresponding key contact around the movable center of the middle part. The key structure has the effect of preventing false touch, and the key is more reliable to use. The cooking utensil adopts foretell button structure, reaches the effect that prevents the mistake and touches, and user's safety in utilization is higher and experience better.

Description

Key structure and cooking utensil

Technical Field

The utility model relates to the technical field of cooking devices for food materials, in particular to a key structure and a cooking appliance.

Background

The button is a commonly used electrical control element, and is used for switching on or off an electrical circuit, thereby achieving the purpose of controlling the operation of the oven or other electrical equipment.

An oven is an electric appliance for baking food or drying products, and an electric oven is an electric appliance for baking food by using radiant heat emitted from an electric heating element. The oven can be used for processing wheaten food, making roast chicken, roast duck, baking bread, cake, etc.

The oven can operate the electric control board through the keys, and a user can operate the electric control board by touching the keys, so that the user can operate the oven conveniently. For example, the Chinese patent with publication number of CN201163954Y and named as "embedded oven key device" is mainly composed of a spring, a support and a support seat, wherein the support seat is slidably mounted on the support seat, the support seat positions the support seat, the support seat is mounted corresponding to the electric control board, the spring is sleeved on the support seat, the spring is used for resetting the support seat, a user presses the support seat to trigger the switch of the electric control board, and after the user releases the support seat, the spring can jack the support seat to be separated from the switch touching the electric control board, so that the operation on the electric control board is realized.

In the structure of the embedded oven key device, one key structure corresponds to one contact of the electric control board, and in the using process, a user easily touches and presses the two key structures at the same time by mistaken touch, so that other functions of the oven are mistakenly touched, and normal use of the oven is affected.

Disclosure of Invention

Aiming at the defects, the utility model aims to provide a key structure which has the effect of preventing false touch and is more reliable in use.

The utility model also aims to provide a cooking utensil which adopts the key structure to achieve the effect of preventing false touch, and has higher use safety and better experience for users.

To achieve the purpose, the utility model adopts the following technical scheme:

a key structure comprises a reset piece, a key support and a key seat;

the middle part of the key support is movably connected with the key seat, the key support is provided with a first end and a second end which are opposite, and key contacts are respectively corresponding to the bottoms of the first end and the second end;

the reset piece is limited between the first end and the key contact and between the second end and the key contact respectively;

when one of the first end and the second end is pressed downwards by external force, the other end is upwards far away from the corresponding key contact around the movable center of the middle part.

Further, the reset piece is a rubber ring, one end of the rubber ring is sleeved on the key contact, and the other end of the rubber ring abuts against the first end or the second end.

Further, pressing blocks are respectively arranged at one side of the first end and one side of the second end, facing the key contacts, and the pressing blocks are aligned with the key contacts;

the pressing block moves downwards along with the first end or the second end to the rubber ring to press the key contact.

Further, one end of the reset piece is abutted against the key contact, and the other end of the reset piece is abutted against the first end or the second end.

Further, the key structure further comprises an electric control plate and a positioning plate, and the key contacts are arranged on the electric control plate; the key seat is detachably arranged on the electric control board;

the locating plate is provided with a first limiting hole and a second limiting hole, the locating plate is located between the key support and the electric control plate, the reset piece penetrates through the first limiting hole, and the key base penetrates through the second limiting hole.

Further, the key seat is provided with a clamping groove, a connecting rod is arranged in the middle of the key support, and the connecting rod is rotatably limited in the clamping groove.

Further, the key seat comprises a base, a positioning pin is arranged on one side, facing the electric control plate, of the base, and clamping hooks are respectively connected to two sides of the base;

the electric control plate is provided with a mounting hole and a positioning hole, the positioning pin is inserted into the positioning hole, and the clamping hooks on two sides penetrate through the mounting hole to be buckled with the mounting hole.

Further, two sides of the base extend outwards along the center to form a limiting part, the limiting part is propped against the electric control plate, and the limiting part is arranged above and/or below the clamping hook along the vertical direction of the base; and the tail end of the clamping hook is arranged behind the tail end of the limiting part along the longitudinal direction of the base.

Further, a decorative sheet is arranged on one side of the key support away from the key seat.

The utility model provides a cooking utensil, includes utensil main part and foretell button structure, the utensil main part includes the baking chamber of toasting edible material, and seals the door body of baking chamber, button structure locates one side of door body.

The technical scheme provided by the utility model can comprise the following beneficial effects:

according to the utility model, one key support is designed to correspond to two key contacts, and the middle part of the key support is movably connected with the key seat, so that the key support can swing around the key seat, therefore, only one of the two key contacts corresponding to two ends of the key support can be operated, the misoperation of the adjacent key contacts when one key contact is operated is effectively prevented, and the reliability of key use is improved.

Drawings

FIG. 1 is a schematic diagram of a key structure according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of the key structure of FIG. 1;

FIG. 3 is a schematic diagram of a key frame of the key structure shown in FIG. 1;

FIG. 4 is a schematic diagram of a key pad of the key structure shown in FIG. 1;

FIG. 5 is an enlarged view of portion A of the key structure of FIG. 1;

wherein: reset piece 1, button support 2, first end 21, second end 22, briquetting 23, connecting rod 24, decorative piece 25, button seat 3, draw-in groove 31, base 32, locating pin 33, pothook 34, spacing portion 35, button contact 4, automatically controlled board 5, mounting hole 51, locating hole 52, locating plate 6, first spacing hole 61, second spacing hole 62.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

A key structure and a cooking appliance according to an embodiment of the present utility model are described below with reference to fig. 1 to 5.

The utility model relates to a key structure, which comprises a reset piece 1, a key support 2 and a key seat 3; in this embodiment, the middle portion of the key support 2 is a middle area of the key support 2 away from the end portion, and is not strictly limited to the center line of the key support 2, and it can be known that the middle portion may deviate from the center line by a certain distance. In addition, the key support 2 is movably connected to the key base 3, where the movable connection manner may have a plurality of manners such as a rotation shaft, a pin shaft, and a hinge, which is not particularly limited in this embodiment. The key holder 2 has opposite first and second ends 21, 22, and referring to fig. 3, the first end 21 is located near the left end in the drawing, the second end 22 is located near the right end in the drawing, and key contacts 4 are located below the first and second ends 21, 22. In one mode of this embodiment, the key contacts 4 corresponding to the first end 21 and the second end 22 are close in size, and at this time, the key support 2 is movably connected to the key base 3 at a position close to the center line; in other variations of this embodiment, the size difference of the key contacts 4 corresponding to the first end 21 and the second end 22 is obvious, and at this time, the positions of the movable connection of the key support 2 and the key base 3 can be adjusted to adapt to the size of the key contacts 4.

The reset piece 1 is limited between the first end 21 and the key contact 4 and between the second end 22 and the key contact 4 respectively, specifically, the reset piece 1 has a certain elasticity, and after the key contact 4 is pressed in use, rebound reset can be realized by means of the elasticity of the reset piece 1.

When one of the first end 21 and the second end 22 presses the key contact 4 downward under the action of an external force, the other end is away from the corresponding key contact 4 upward around the movable center of the middle part.

Based on the defect that a plurality of keys are independently arranged and easy to be touched by mistake in the prior art, the utility model provides a key structure, wherein two keys are integrated into one swingable key support 2, and only one end of the key support 2 can be pressed when being operated, so that only one of two key contacts 4 corresponding to two ends of the key support 2 can be operated, thereby effectively preventing misoperation on adjacent key contacts when one key contact is operated and improving the reliability of key use. For example, the two ends of the key support 2 may correspond to the temperature raising and lowering contacts, respectively, or to the time raising and lowering contacts, for example, in the oven, the key contacts 4 under the first end 21 and the second end 22 of the key support 2 may correspond to the temperature raising or lowering of the upper heating pipe, the temperature raising or lowering of the lower heating pipe, or the baking time is prolonged or shortened, respectively.

Specifically, the two opposite ends of the key support 2 are respectively corresponding to the key contacts 4, so that when one end is pressed, the key contacts 4 corresponding to the other end are reset, and the effect of preventing false touch is achieved. The key seat 3 is used for supporting the key support 2, so that the middle part of the key support 2 is movably connected with the key seat 3, the first end 21 and the second end 22 of the key support 2 can have the same swing stroke, and the user experience of operating the key support 2 is better.

The reset member 1 is provided to reset the key holder 2 after releasing the pressing force to the key holder 2. Preferably, the reset state of the key holder 2 is a state parallel to the plane in which the two key contacts 4 lie.

In some embodiments, the resetting member 1 is a rubber ring, one end of the rubber ring is sleeved on the key contact 4, and the other end of the rubber ring abuts against the first end 21 or the second end 22. The key contact 4 plays a role in positioning a rubber ring, and specifically, the rubber ring is positioned at the bottom end of the key contact 4 so as to prevent the rubber ring from interfering when the key support 2 presses the key contact 4. It can be understood that the touch effect of the key support 2 on the key contact 4 can be achieved only by designing a smaller distance between the first end 21 or the second end 22 and the key contact 4, and the rubber ring can better maintain the distance between the key support 2 and the key contact 4. Compared with a spring, the rubber ring is adopted as the reset piece 1, so that the reset piece has better insulating property and the electric shock prevention effect of the key support 2 is achieved. And the rubber ring has more consistent deformation quantity, when a plurality of key structures are arranged side by side, the surfaces of the adjacent key structures are flush, and the experience of the end user in the appearance and the quality is improved.

Further, a pressing block 23 is respectively arranged at one side of the first end 21 and the second end 22 facing the key contact 4, and the pressing block 23 is aligned with the key contact 4; when the user presses the key support 2, the pressing block 23 moves downwards along with the first end 21 or the second end 22 to the rubber ring to press the key contact 4.

In some embodiments of the present utility model, the reliability of the key support 2 touching the key contacts 4 is improved by providing the pressing blocks 23 at the sides of the first end 21 and the second end 22 facing the key contacts 4, respectively. Preferably, the key holder 2 and the pressing block 23 are of an integral structure. Specifically, the pressing block 23 is columnar, and the diameter of the pressing block 23 is smaller than the inner diameter of the rubber ring, so that the pressing block 23 is positioned in the rubber ring, and when the first end 21 or the second end 22 is pressed, the pressing block 23 can approach and touch the key contact 4.

In other embodiments, one end of the reset element 1 abuts against the key contact 4, and the other end of the reset element 1 abuts against the first end 21 or the second end 22. When the first end 21 or the second end 22 is pressed, the reset element 1 is compressed, and the key contact 4 is touched when the reset element 1 is compressed to a certain extent, and when the pressing force to the first end 21 or the second end 22 is released, the key contact 4 is reset, and at the same time, the reset element 1 is restored to the original state, thereby resetting the end of the key holder 2. Preferably, the reset piece 1 is an elastic rubber pad, and the elastic rubber pad has good insulation effect, so that the key support 2 has electric shock prevention effect.

Further, the key structure further comprises an electric control board 5 and a positioning board 6, and the key contact 4 is arranged on the electric control board 5; the key seat 3 is detachably mounted on the electric control board 5, and particularly, the modes of buckling, clamping, screwing and the like can be adopted, so that the installation is convenient, the key seat 3 can be independently replaced after being damaged, and the later maintenance cost is reduced.

The locating plate 6 is provided with a first limit hole 61 and a second limit hole 62, the locating plate 6 is positioned between the key support 2 and the electric control plate 5, the reset piece 1 penetrates through the first limit hole 61, and the key seat 3 penetrates through the second limit hole 62. It will be appreciated that the key contacts 4 are operated to effect control of the electrical device, and that the key contacts 4 are typically mounted on an electronic control board 5 to control the electrical circuit. In some embodiments of the present utility model, the key base 3 is also mounted on the electric control board 5 in a snap-fit manner, which not only simplifies the structure of the electrical apparatus, but also facilitates the assembly of the key structure. The locating plate 6 is used for limiting the reset piece 1 and the key seat 3 and preventing the reset piece and the key seat from shaking.

Further, the key seat 3 is provided with a clamping groove 31, the middle part of the key support 2 is provided with a connecting rod 24, and the connecting rod 24 is rotatably limited in the clamping groove 31. In some embodiments of the present utility model, the key support 2 is preferably rotatably mounted to the key base 3 by a snap-fit manner. Specifically, the clamping groove 31 of the key seat 3 has an opening, and when the connecting rod 24 is limited in the clamping groove 31, the opening of the clamping groove 31 is not parallel to the connecting rod 24, so as to ensure that the connecting rod 24 can be smoothly pressed and clamped into the clamping groove 31. Preferably, the connecting rod 24 is a round rod, and the cross section of the clamping groove 31 is annular, so as to ensure that the connecting rod 24 can rotate in the clamping groove 31. Further specifically, two ends of the connecting rod 24 are connected with the key support 2 through connecting blocks, a clearance for letting down the clamping groove 31 is formed between the connecting rod 24 and the side face of the key support 2, and the connecting rod 24, the connecting blocks and the case support can adopt an integrated structure.

Further, the key base 3 includes a base 32, a positioning pin 33 is disposed on one side of the base 32 facing the electric control board 5, and hooks 34 are respectively connected to two sides of the base 32; the electric control board 5 is provided with a mounting hole 51 and a positioning hole 52, the positioning pin 33 is inserted into the positioning hole 52, and the hooks 34 on two sides penetrate through the mounting hole 51 and are buckled with the mounting hole 51.

In some embodiments of the present utility model, the base 32 of the key base 3 is fastened to the mounting hole 51 of the electronic control board 5 by the hook 34, so that the assembly of the key base 3 is very simple, and the positioning pin 33 is inserted into the positioning hole, so that the key base 3 is mounted on the electronic control board 5 with a better positioning effect, thus realizing the anti-shake of the key base 3, and further improving the reliability of the installation of the key support 2. Preferably, the base 32, the positioning pin 33 and the hook 34 are of an integral structure. It will be appreciated that in other embodiments, the key base 3 may be fixed to the electronic control board 5 by screwing or riveting.

In order to further improve the installation stability of the key seat 3, two sides of the base 32 extend outwards along the center to form limit parts 35, the limit parts 35 are propped against the electric control board 5, and the limit parts 35 are arranged above and/or below the clamping hooks 34 along the vertical direction of the base 32; and, along the longitudinal direction of the base 32, the tail end of the hook 34 is arranged behind the tail end of the limit part 35, namely, near one side of the electric control board 5. After the hook 34 passes through the mounting hole 51 and is buckled on two sides of the mounting hole 51, the side portion of the mounting hole 51 is located between the limiting portion 35 and the hook portion of the hook 34, so that the base 32 can be firmly positioned on the electric control board 5.

Further, a decorative sheet 25 is provided on the side of the key frame 2 away from the key pad 3. In some embodiments of the present utility model, the aesthetic effect and easy cleaning effect of the key holder 2 are enhanced by the decorative sheet 25. Furthermore, functional marks on the key contacts 4 may be added to the decorative sheet 25 so that the user can know the key functions. Preferably, the decorative sheet 25 is installed on the front side of the key support 2 in a clamping manner, so that the assembly is more convenient.

Correspondingly, the utility model also provides a cooking appliance, which comprises an appliance main body (not shown in the figure) and the key structure, wherein the appliance main body is provided with a baking chamber for baking food materials, and a door body capable of closing or opening the baking chamber. The key structure is arranged on one side of the door body, namely, can be arranged on the left side, the right side, the upper side or the lower side of the door body. For example, if the door body is a right-opening door structure, the key structure may be disposed on the right side of the door body; alternatively, the door body is an upper door opening structure, and the key structure may be disposed at the lower side of the door body, it should be understood that the above is only an example, and the location of the door body and the key structure is not particularly limited. It should be noted that the key structure of the present utility model can be applied to any electronic product with keys, and preferably, to a cooking appliance.

Other structures, etc. and operations of a key structure and a cooking appliance according to an embodiment of the present utility model are known to those skilled in the art, and will not be described in detail herein.

In the description herein, reference to the term "embodiment," "example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A key structure, characterized in that: comprises a reset piece, a key support and a key seat;

2. A key structure according to claim 1, wherein: the reset piece is a rubber ring, one end of the rubber ring is sleeved on the key contact, and the other end of the rubber ring abuts against the first end or the second end.

3. A key structure according to claim 2, wherein: the first end and the second end are respectively provided with a pressing block towards one side of the key contact, and the pressing blocks are aligned with the key contact;

4. A key structure according to claim 1, wherein: one end of the reset piece is propped against the key contact, and the other end of the reset piece is propped against the first end or the second end.

5. A key structure according to claim 1, wherein: the electronic control device also comprises an electronic control board and a positioning board, wherein the key contacts are arranged on the electronic control board; the key seat is detachably arranged on the electric control board;

6. A key structure according to claim 1, wherein: the key seat is provided with a clamping groove, a connecting rod is arranged in the middle of the key support, and the connecting rod is rotatably limited in the clamping groove.

7. A key structure according to claim 5, wherein: the key seat comprises a base, a positioning pin is arranged on one side, facing the electric control plate, of the base, and clamping hooks are connected to two sides of the base;

8. The key structure of claim 7, wherein: the two sides of the base extend outwards along the center to form a limiting part, the limiting part is propped against the electric control plate, and the limiting part is arranged above and/or below the clamping hook along the vertical direction of the base; and the tail end of the clamping hook is arranged behind the tail end of the limiting part along the longitudinal direction of the base.

9. A key structure according to claim 1, wherein: and a decorative sheet is arranged on one side of the key support, which is far away from the key seat.

10. A cooking appliance characterized by comprising an appliance body and the key structure of any one of claims 1 to 9, wherein the appliance body comprises a baking chamber for baking food materials, and a door body for closing the baking chamber, and the key structure is arranged on one side of the door body.