CN212565909U

CN212565909U - Door opening limiting mechanism and cooking appliance

Info

Publication number: CN212565909U
Application number: CN202020915844.XU
Authority: CN
Inventors: 陈堪鑫; 李丰; 梁兆邦
Original assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Electric Manufacturing Co Ltd
Current assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Electric Manufacturing Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-19
Anticipated expiration: 2030-05-27

Abstract

The utility model relates to a restriction mechanism of opening door and cooking device, restriction mechanism of opening door include limit structure, and limit structure is used for setting up on cooking device's box. The door body of the cooking appliance is provided with a clamping groove. The limiting structure comprises a driving piece and a clamping piece, wherein the driving piece is connected with the clamping piece and used for driving the clamping piece to rotate. When the door body is in a closed state, the clamping piece is embedded in the clamping groove. The driving piece can drive the clamping piece to rotate so as to enable the clamping piece to be separated from the clamping groove. When the door body of cooking device is opened to needs, need use driving piece drive joint spare earlier rotatory, make the draw-in groove separation on joint spare and the door body, stimulate the handle or press the button after that, can open the door body. The difficulty that the door body was opened has been increased to above-mentioned mode, and the user needs two steps of operations just can open the door to reduced the risk that the user was scalded by high temperature article in the cooking electrical apparatus, and then improved the safety in utilization of cooking electrical apparatus product.

Description

Door opening limiting mechanism and cooking appliance

Technical Field

The utility model relates to a cooking appliance technical field especially relates to a restriction mechanism of opening door and cooking appliance.

Background

The door opening modes of the cooking appliances on the market, such as microwave ovens, include a handle type and a button type, namely, a user can open the door in one step by pulling the handle or pressing a door opening button, and the user can directly close the oven door after using the door. However, the door opening mode which can be realized by only one step is unsafe for users, and when the users open the door by mistake, the users may be scalded by the high-temperature food inside the doors, which causes safety accidents.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a door opening limiting mechanism and a cooking appliance for solving the above technical problems, so that a user can be effectively prevented from easily opening a door body, and the improvement of the use safety of the cooking appliance is facilitated.

A door opening limiting mechanism is applied to a handle type cooking electric appliance or a button type cooking electric appliance and comprises a limiting structure, wherein the limiting structure is arranged on a box body of the cooking electric appliance, and a door body of the cooking electric appliance is provided with a clamping groove; the limiting structure comprises a driving piece and a clamping piece, and the driving piece is connected to the clamping piece and is used for driving the clamping piece to rotate; when the door body is in a closed state, the clamping piece is embedded in the clamping groove; the driving piece can drive the clamping piece to rotate so that the clamping piece can be separated from the clamping groove.

The technical solution is further explained below:

in one embodiment, the limiting structure further includes a first switch and a control module, the control module is electrically connected to the first switch and the driving member, the control module supplies power to the driving member according to the action of the first switch, and when the driving member supplies power for more than a first time period, the control module controls the driving member to be powered off.

In one embodiment, the first period of time is greater than one second and less than ten seconds.

In one embodiment, one end of the clamping member is connected to the rotating shaft of the driving member, the cross section of the rotating shaft is square, the clamping member is provided with a square hole, and the rotating shaft is inserted into the square hole.

In one embodiment, the limiting structure further comprises a first elastic resetting piece, one end of the first elastic resetting piece is connected to the clamping piece, and the other end of the first elastic resetting piece is used for being installed on the box body; the first reset elastic piece is used for driving the clamping piece to recover to the position clamped with the clamping groove.

In one embodiment, the clamping piece comprises a clamping portion and an ear folding portion connected to the clamping portion, and the ear folding portion and the clamping portion form an included angle; the driving piece is connected to the clamping portion, and one end of the first reset elastic piece is connected to the ear folding portion.

In one embodiment, the cooking appliance comprises a box body, a door body and the door opening limiting mechanism according to any one of the above embodiments, wherein the door body is connected with the box body in an opening and closing manner, the limiting structure is arranged on the box body, and the clamping groove is arranged on the door body.

In one embodiment, a door hook is arranged on the door body, the door hook comprises a connecting section and a hook section, one end of the connecting section is mounted on the door body, the other end of the connecting section is connected to the hook section, and the clamping groove is arranged on the connecting section; the driving piece is a motor, and the motor is screwed or clamped and connected to the box body.

In one embodiment, the clip member is provided with a first guide surface, and the hook section is provided with a second guide surface, and the second guide surface is arranged towards the first guide surface for guiding the clip member into the slot.

In one embodiment, the box body further comprises a control box, a switch bracket, a cavity and a cavity front plate located on the front side of the cavity, the control box is arranged on the front side of the cavity front plate, the switch bracket is arranged on one side, deviating from the door body, of the cavity front plate, the limiting structure is arranged on the control box or on the switch bracket, and the door hook is clamped on the switch bracket.

Above-mentioned restriction mechanism of opening a door and cooking device have following beneficial effect at least:

the door opening limiting mechanism provided by the embodiment is arranged on a handle type cooking appliance or a button type cooking appliance. When the door body of cooking device is opened to needs, need use driving piece drive joint spare earlier rotatory, make the draw-in groove separation on joint spare and the door body, stimulate the handle or press the button after that, can open the door body. The difficulty that the door body was opened has been increased to above-mentioned mode, and the user needs two steps of operations just can open the door to reduced the risk that the user was scalded by high temperature article in the cooking electrical apparatus, and then improved the safety in utilization of cooking electrical apparatus product. In addition, the structure is reliable and reasonable, the manufacturing cost is low, and the operation is simple and convenient.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

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

Fig. 1 is a schematic structural diagram of a cooking appliance according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a door opening limiting mechanism provided in the control box according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the limited opening mechanism of FIG. 2;

fig. 4 is a schematic structural view illustrating a clip member separated from a clip groove according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a door opening limiting mechanism provided on a switch bracket according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a clip according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a door hook according to an embodiment of the present invention.

Description of reference numerals: 100. a confinement structure; 110. a drive member; 111. a rotating shaft; 112. connecting sheets; 120. a clamping piece; 121. a clamping part; 1211. a first guide surface; 1212. a square hole; 122. folding the ear part; 130. a first switch; 140. a first return spring; 200. a box body; 210. a control box; 220. a switch bracket; 221. a limiting block; 230. mounting a column; 240. a cavity; 250. a cavity front plate; 300. a door body; 310. a door hook; 311. a connecting section; 3111. a card slot; 312. a hook section; 3121. a second guide surface.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

The embodiment provides a door opening limiting mechanism and a cooking appliance, which have the advantages that a user is effectively prevented from easily opening the door 300, and the use safety of the cooking appliance is improved, and the following detailed description is provided with reference to the accompanying drawings.

In one embodiment, referring to fig. 1 to 3, a door opening limiting mechanism is applied to a handle-type cooking appliance or a button-type cooking appliance. The door opening restriction mechanism includes a restriction structure 100. The limiting structure 100 is arranged on the box 200 of the cooking appliance, and the door 300 of the cooking appliance is provided with a slot 3111 (the slot 3111 is shown in fig. 4 and 7). The limiting structure 100 includes a driving member 110 and a catching member 120. The driving member 110 is connected to the engaging member 120 for driving the engaging member 120 to rotate. When the door 300 is in a closed state, the engaging member 120 is embedded in the engaging groove 3111. The driving member 110 can drive the engaging member 120 to rotate for disengaging the engaging member 120 from the engaging slot 3111. The cooking appliance may be a microwave oven, an oven, or the like. The driver 110 may be a small motor or the like driver 110.

The door opening limiting mechanism provided by the embodiment is arranged on a handle type cooking appliance or a button type cooking appliance. When the door 300 of the cooking appliance needs to be opened, the driving part 110 needs to be used for driving the clamping part 120 to rotate, so that the clamping part 120 is separated from the clamping groove 3111 on the door 300, and then the handle is pulled or the button is pressed, so that the door 300 can be opened. The difficulty that door body 300 opened has been increased to above-mentioned mode, and the user needs two steps of operations just can open the door to reduced the risk that the user is scalded by high temperature article in the cooking appliance, and then improved the safety in utilization of cooking appliance product. In addition, the structure is reliable and reasonable, the manufacturing cost is low, and the operation is simple and convenient.

In one embodiment, referring to fig. 1 to 3, the limiting structure 100 further includes a first switch 130 and a control module (not shown). The control module is electrically connected to the first switch 130 and the driving member 110, respectively. The control module powers the driver 110 in response to actuation of the first switch 130. When the driver 110 is powered for more than a first period of time, the control module controls the driver 110 to be powered off. Specifically, the first time period is greater than one second and less than ten seconds. For example, the first time period may be three seconds, five seconds, six seconds, etc. The process of opening the door 300 is described with the first time period as five seconds: firstly, pressing the first switch 130, the control module enters a working state, and the control module controls a power supply (not shown) to supply power to the driving member 110; secondly, the driving part 110 is powered on for five seconds, and in the five seconds, the driving part 110 drives the clamping part 120 to rotate, so that the clamping part 120 is separated from the clamping groove 3111, and the first-step unlocking of the door body 300 is realized; an action in which the human hand does not have to keep pressing the first switch 130 for the five seconds; and thirdly, the user needs to pull the handle or press a button of the cooking appliance within the five-second time period to unlock the door body 300 in the second step, so that the door body 300 can be opened. After five seconds, the control module controls driver 110 to be powered off.

It can be understood that when the control module does not set the first time period, the user only needs to keep pressing the first switch 130, and the other hand quickly pulls the handle or presses the button to open the door 300, and then releases the first switch 130.

In one embodiment, referring to fig. 4 and 6, one end of the locking member 120 is connected to the rotating shaft 111 of the driving member 110. The cross section of the rotating shaft 111 is square, a square hole 1212 is formed in the clamping piece 120, and the rotating shaft 111 is inserted into the square hole 1212. Specifically, when the rotating shaft 111 rotates, the rotating shaft 111 is clamped in the square hole 1212, and the square hole 1212 rotates along with the rotating shaft 111, so that the clamping member 120 also rotates.

In one embodiment, referring to fig. 1 to 4, the limiting structure 100 further includes a first elastic restoring element 140. One end of the first elastic restoring member 140 is connected to the clamping member 120, and the other end of the first elastic restoring member 140 is used for being mounted on the box body 200. The first elastic reset element 140 is used to drive the locking element 120 to return to the position engaged with the slot 3111. Specifically, the first return elastic member 140 is a spiral return spring or a wave return spring. One end of the first return elastic member 140 is hooked on the catching member 120, and the other end of the first return elastic member 140 is hooked on the switch bracket 220 of the case 200 or the control box 210 of the case 200. When the door 300 is in a closed state, the engaging member 120 is inserted into the engaging groove 3111. When the door body 300 needs to be opened, the driving part 110 drives the clamping part 120 to rotate, so that the clamping part 120 is separated from the clamping groove 3111, at the moment, the first reset elastic part 140 deforms to generate restoring force, then the user pulls the handle or presses the button to open the door body 300, and the clamping part 120 returns to the position clamped with the clamping groove 3111 under the action of the restoring force of the first reset elastic part 140. When the door 300 is closed again, the door 300 rotates towards the direction of the closed box 200, the clamping groove 3111 of the door 300 firstly abuts against the clamping piece 120, and a user applies force to the door 300, so that the clamping piece 120 is clamped into the clamping groove 3111.

In one embodiment, referring to fig. 4 to 6, the clip member 120 includes a clip portion 121 and a tab portion 122 connected to the clip portion 121. The included angle between the ear bending part 122 and the clamping part 121 is set. The driving member 110 is connected to the clamping portion 121, and one end of the first elastic resetting member 140 is connected to the bending portion 122. Specifically, the tab portion 122 is perpendicular to the clamping portion 121, one end of the first elastic reset element 140 is hooked on the tab portion 122, the clamping portion 121 is provided with a square hole 1212, and the rotating shaft 111 of the driving element 110 is inserted into the square hole 1212 of the clamping portion 121.

In one embodiment, referring to fig. 1 to 3, an electric cooking appliance includes a cabinet 200, a door 300, and a door opening limiting mechanism according to any of the above embodiments. The door 300 is connected to the box 200 in an openable or closable manner, the limiting structure 100 is disposed on the box 200, and the slot 3111 is disposed on the door 300. Specifically, as shown in fig. 7, a door hook 310 is disposed on the door body 300, and the door hook 310 includes a connecting section 311 and a hook section 312. One end of the connection section 311 is installed on the door body 300, and the other end of the connection section 311 is connected to the hook section 312. The card slot 3111 is disposed in the connection section 311. The driving member 110 is a motor, and the motor is screwed or fastened to the case 200. Further, referring to fig. 3, two mounting posts 230 are disposed on the box 200, a connecting plate 112 is disposed at one end of the driving member 110 where the rotating shaft 111 is disposed, two through holes are disposed on the connecting plate 112, and the two mounting posts 230 are respectively disposed in the two through holes, so that the driving member 110 and the box 200 can be connected. Further, the case 200 further includes a control box 210, a switch bracket 220, a cavity 240, and a cavity front plate 250 located at a front side of the cavity 240. The control box 210 is disposed on the front side of the cavity front plate 250, and the switch bracket 220 is disposed on the side of the cavity front plate 250 away from the door 300. The limiting structure 100 is disposed on the control box 210 (as shown in fig. 3) or on the switch bracket 220 (as shown in fig. 5), and the door hook 310 is engaged with the switch bracket 220. Specifically, the switch bracket 220 is provided with a stopper 221, and the door hook 310 is hooked on the stopper 221 to achieve one-time locking of the door body 300. After the door hook 310 is hooked on the stop block 221, the first reset elastic member 140 drives the fastening member 120 to be fastened in the fastening slot 3111 of the door hook 310 under the action of elastic force, so as to realize double locking of the door body 300.

In one embodiment, referring to fig. 3, 4, 6 and 7, the locking member 120 is provided with a first guide surface 1211, the hook section 312 is provided with a second guide surface 3121, and the second guide surface 3121 faces the first guide surface 1211 for guiding the locking member 120 into the slot 3111. Specifically, when the door body 300 needs to be opened, the driving part 110 drives the clamping part 120 to rotate, so that the clamping part 120 is separated from the clamping groove 3111, at the moment, the first reset elastic part 140 deforms, restoring force is generated, then the user pulls the handle or presses the button to open the door body 300, and the clamping part 120 returns to the position clamped with the clamping groove 3111 under the action of the restoring force of the first reset elastic part 140. When the door 300 is closed again, the door 300 rotates toward the direction of the enclosed cabinet 200, the notch 3111 of the door hook 310 first abuts against the fastening member 120, so that the second guide surface 3121 abuts against the first guide surface 1211, and then the user continues to apply force to the door 300, and the first guide surface 1211 slides along the second guide surface 3121 until the fastening member 120 slides into the notch 3111, and the door hook 310 is hooked on the stopper 221.

In one embodiment, referring to fig. 1 to 3, a cooking appliance includes a door opening limiting mechanism according to any one of the above embodiments. Because the cooking appliance comprises the door opening limiting mechanism, the technical effect is brought by the door opening limiting mechanism, and the beneficial effects comprise the beneficial effects of the door opening limiting mechanism, so that the description is omitted.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

It should be noted that the "first convex body" may be "a part of the first mounting component", that is, the "first convex body" is integrally formed with "the other part of the first mounting component"; or a separate member which can be separated from the other parts of the first mounting part, namely the first convex body can be manufactured separately and then combined with the other parts of the first mounting part into a whole.

It should be noted that the "first mounting part" may be one of the parts of the "mounting unit" module, that is, the "mounting unit is modularly assembled with the" other members of the mounting unit "; or may be relatively independent from the "other components of the mounting unit", separable, i.e. modularly assembled with the "other components of the mounting unit" in the present device.

Equivalently, the components included in the unit, the assembly, the mechanism and the device can be flexibly combined, and can be produced in a modularized mode according to actual needs, so that the modularized assembly is convenient. The division of the above-mentioned components in the present application is only one example, which is convenient for reading and is not a limitation to the protection scope of the present application, and the same functions as the above-mentioned components should be understood as equivalent technical solutions in the present application.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A door opening limiting mechanism applied to a handle type cooking appliance or a button type cooking appliance, the door opening limiting mechanism comprising:

the limiting structure is arranged on a box body of the cooking appliance, and a door body of the cooking appliance is provided with a clamping groove; the limiting structure comprises a driving piece and a clamping piece, and the driving piece is connected to the clamping piece and is used for driving the clamping piece to rotate; when the door body is in a closed state, the clamping piece is embedded in the clamping groove; the driving piece can drive the clamping piece to rotate so that the clamping piece can be separated from the clamping groove.

2. The door opening limiting mechanism of claim 1, wherein the limiting structure further comprises a first switch and a control module, the control module is electrically connected to the first switch and the driving member, the control module supplies power to the driving member according to the action of the first switch, and when the driving member supplies power for more than a first time period, the control module controls the driving member to be powered off.

3. The limited opening mechanism of claim 2, wherein the first period of time is greater than one second and less than ten seconds.

4. The door opening limiting mechanism of claim 1, wherein one end of the engaging member is connected to a rotating shaft of the driving member, the rotating shaft has a square cross section, the engaging member has a square hole, and the rotating shaft is inserted into the square hole.

5. The door opening limiting mechanism according to claim 1, wherein the limiting structure further comprises a first resetting elastic member, one end of the first resetting elastic member is connected to the clamping member, and the other end of the first resetting elastic member is used for being mounted on the box body; the first reset elastic piece is used for driving the clamping piece to recover to the position clamped with the clamping groove.

6. The door opening limiting mechanism according to claim 5, wherein the clamping member comprises a clamping portion and an ear folding portion connected to the clamping portion, and the ear folding portion and the clamping portion are arranged at an included angle; the driving piece is connected to the clamping portion, and one end of the first reset elastic piece is connected to the ear folding portion.

7. An electric cooking appliance, characterized by comprising a box body, a door body and the door opening limiting mechanism according to any one of claims 1 to 6, wherein the door body is connected with the box body in an opening or closing manner, the limiting structure is arranged on the box body, and the clamping groove is arranged on the door body.

8. The cooking appliance according to claim 7, wherein a door hook is arranged on the door body, the door hook comprises a connecting section and a hook section, one end of the connecting section is mounted on the door body, the other end of the connecting section is connected to the hook section, and the clamping groove is arranged on the connecting section; the driving piece is a motor, and the motor is screwed or clamped and connected to the box body.

9. The electrical cooking appliance according to claim 8, wherein the snap-in member is provided with a first guide surface and the hook section is provided with a second guide surface, the second guide surface being arranged towards the first guide surface for guiding the snap-in member into the snap-in groove.

10. The cooking appliance according to claim 8, wherein the box further comprises a control box, a switch bracket, a cavity and a cavity front plate located at the front side of the cavity, the control box is arranged at the front side of the cavity front plate, the switch bracket is arranged at one side of the cavity front plate, which is far away from the door body, the limiting structure is arranged on the control box or on the switch bracket, and the door hook is clamped on the switch bracket.