Door body assembly of cooking utensil and cooking utensil with door body assembly

Abstract

The utility model provides a door body assembly of a cooking utensil and the cooking utensil with the door body assembly. The door body assembly comprises a door body; the door body hinge assembly comprises a fixed part and a rotating assembly. Tabletting is performed; the contact switch is arranged on the door body and located in the moving range of the pressing piece. One end of the rotating assembly comprises a rolling piece and a first elastic component, the rolling piece extends from one side of the protruding part of the fixing piece to the other side of the protruding part along the surface, the elastic component deforms, and the door body is switched between the closed state and the open state. The opening and closing of the switch and the door body are linked, the cooker is simplified, the structure is simplified, the buffering force and the pre-tightening force are provided when the door body is closed by arranging the first elastic component and the second elastic component, the buffering force buffers the impact generated when the pressing piece makes contact with the contact switch, the service life of the contact switch is prolonged, and the service life of the cooker is prolonged. And the pre-tightening force enables the user not to open the door body at will, so that the user is prevented from being scalded by high-temperature steam in the oven.

Description

Technical Field

[0001] The present application relates to the field of cooking technology, and in particular to a door assembly of a cooking utensil and a cooking utensil having the same. Background Art

[0002] As people's living standards continue to improve, people's requirements for the safety and convenience of using electrical appliances have also greatly increased. When using an oven, people often expect the oven to start automatically when the door is closed, and to stop automatically when the door is opened.

[0003] Most of the current ovens have the door opening detection switch mostly set on the cavity assembly. For example, when the user opens or closes the door, the switch on the cavity assembly detects the opening and closing action of the door body and sends the action to the main control board of the oven. The main control board controls the heating device of the oven to turn on or off according to the opening and closing of the door body, thereby realizing the start and stop of the oven. This type of oven has a complex structure and high cost, and cannot safely and effectively ensure that the oven can start and stop normally when the door is opened and closed, which poses safety risks and hidden dangers.

[0004] If the switch is set on the door body, and the switch is linked to the opening and closing of the door body, this can simplify the structure of the oven, and at the same time safely and effectively ensure that the oven can be started and stopped normally when the door is opened and closed. In an oven where the switch is set on the door body, because the heating device is powered off when the door body is opened, and the heating device is powered on when the door body is closed, it is particularly important to ensure that the door body will not be easily opened when the heating device is powered on. If the heating device is powered on, for example, the user's slight touch (misoperation) causes the door body to open or partially open, the user will be scalded by the high-temperature steam in the oven. In addition, in the method of starting the oven by contacting the pressing plate and the contact switch, there is no buffering force when the pressing plate and the contact switch are in contact, which can easily damage the contact switch, thereby reducing the life of the contact switch.

[0005] Therefore, it is necessary to propose a new technical solution to overcome the problems existing in the prior art. Utility Model Content

[0006] The present application provides a cooking utensil to solve the problems in the prior art that when a heating device is turned on, a door may be easily opened due to a slight touch (misoperation) by a user and the life of the contact switch is short.

[0007] The present application adopts the following technical solution: a door assembly of a cooking appliance, comprising:

[0008] A door body, including a door body mounting tube, the door body being rotatably connected to a housing of the cooking appliance;

[0009] A door hinge assembly, comprising a fixing member and a rotating assembly, wherein the fixing member is mounted on the box of the cooking appliance, and one end of the rotating assembly is rotatably connected to the fixing member;

[0010] A pressing plate, disposed at the other end of the rotating assembly, and the rotating assembly drives the pressing plate to move on the door body; and

[0011] A contact switch, arranged on the door body and located within the moving range of the pressing sheet;

[0012] Wherein, the one end of the rotating assembly includes a rolling member that cooperates with the surface of the raised portion of the fixing member and a first elastic component that cooperates with the rolling member, and the rolling member and the first elastic component are linked with the rotation of the door body.

[0013] Preferably, when the rolling element moves from one side of the protrusion along the surface to the other side of the protrusion, the elastic member is deformed and the door body switches between a closed state and an open state.

[0014] Preferably, the fixing member includes a first rotating shaft and a second rotating shaft arranged at an interval, the first rotating shaft is farther away from the box body than the second rotating shaft, the door body is connected to the fixing member through the first rotating shaft, and the rotating assembly is connected to the fixing member through the second rotating shaft.

[0015] Preferably, the rotating assembly includes a first rotating plate and a second rotating plate rotatably connected, the pressing plate is fixed to an end of the first rotating plate away from the second rotating plate, and the second rotating plate is connected to the fixing member via the second rotating shaft.

[0016] Preferably, the first rotating plate includes a first slide groove, a first slide rod is arranged in the first slide groove, the first slide groove extends along the moving direction of the pressing sheet, the first rotating plate and the second rotating plate are connected by a connecting shaft, and a second elastic component is connected between the first slide rod and the connecting shaft.

[0017] Preferably, the door body mounting tube includes a second slide groove and a third slide groove, the connecting shaft is arranged in the second slide groove, the third slide rod is arranged in the third slide groove, and the rolling element and the first elastic component are linked with the movement of the third slide rod along the third slide groove.

[0018] Preferably, the rolling element is arranged on the third sliding rod, the first elastic member is arranged on an elastic member retaining seat, the elastic member retaining seat is connected to the third sliding rod, and an elastic member stopper is arranged at one end of the first elastic member away from the third sliding rod.

[0019] Preferably, the first elastic member comprises a compression spring, and the second elastic member comprises a tension spring.

[0020] Preferably, the pressing sheet comprises an inclined guide portion

[0021] The present application adopts the following technical solution: a cooking utensil, comprising:

[0022] The housing; and

[0023] A door assembly for a cooking appliance according to any one of the above items.

[0024] The door assembly of the cooking utensil provided by the present application and the cooking utensil having the same, the switch is arranged on the door body, the switch is linked with the opening and closing of the door body, the cooking utensil has a simplified structure, by arranging the first elastic member and the second elastic member, the first elastic member B1 and the second elastic member B2 provide a buffering force and a pre-tightening force when the door body is closed, the buffering force cushions the impact when the pressing piece and the contact switch contact, and prolongs the life of the contact switch, the pre-tightening force prevents the user from opening the door body at will, thus preventing the door body from being easily opened when the heating device is turned on, causing the user to be scalded by the high-temperature steam in the oven, the cooking utensil of the present application has a simplified structure and low cost, and at the same time safely and effectively ensures that the oven can be started and stopped normally when the door is opened and closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.

[0026] Figure 1 It is a side view of the cooking appliance of the present application, wherein the door is in a closed state, the pressing piece is in contact with the contact switch, and the cooking appliance is started.

[0027] Figure 2 It is a side view of the cooking appliance of the present application, wherein the door is in an open state, the pressing piece is disconnected from the contact switch, and the cooking appliance stops working.

[0028] Figure 3 It is a stereoscopic view of the door assembly of the cooking appliance of the present application, wherein the door hinge assembly is detached from the door mounting tube.

[0029] Figure 4 It is an enlarged view of the fixing part of the cooking appliance of the present application when the door is in a closed state.

[0030] Explanation of the reference numerals: 100-oven; 110-box; 120-door assembly; 121-door; 122-door hinge assembly; 123-pressing sheet; 124-contact switch; A-door mounting tube; 1221-fixing member; 1222-rotating assembly; 1221'-first rotating shaft; 1221"-second rotating shaft; 1222'-first rotating plate; 1222"-second rotating plate; 1-first slide groove; 11-first slide rod; 2-second slide groove; 3-third slide groove; H-connecting shaft; C-rolling member; 33-third slide rod; B'-elastic member retaining seat; B"-elastic member stopper; B1-first elastic member; B2-second elastic member. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various configurations. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] Unless otherwise defined, the technical terms or scientific terms used in this patent document shall have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the patent specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one", "one" or "the" do not indicate a quantitative limitation, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0036] See also Figures 1 to 4 As shown, the present application relates to a cooking appliance. In one example, the cooking appliance is an oven, a steamer or a microwave oven. In the present application, we take an oven as an example for explanation.

[0037] like Figure 1 and Figure 2 As shown, the oven 100 includes a cabinet 110 and a door assembly 120, wherein the door assembly 120 is disposed on the side of the cabinet 110 and (except for the fixing member) can rotate relative to the cabinet 110 around a rotation axis. In one example, the lower portion of the door assembly 120 is rotatably connected to the fixing member near the bottom of the cabinet 110, and the door assembly 120 rotates up and down around the rotation axis to realize the opening and closing of the door assembly 120.

[0038] like Figure 3 As shown, the door body assembly 120 includes a door body 121 , a door body hinge assembly 122 , a pressing sheet 123 and a contact switch 124 .

[0039] The door body 121 is rotatably connected to the cabinet 110 of the oven 100. The door body 121 includes a door body mounting tube A. The door body hinge assembly 122 is disposed in the door body mounting tube A of the door body 121. The door body 121 is rotatably mounted to the cabinet 110 through the door body mounting tube A. In one example, the cross section of the door body mounting tube A is square. Of course, it can also be other shapes.

[0040] The door hinge assembly 122 includes a fixing member 1221 and a rotating assembly 1222 , wherein the fixing member 1221 is mounted on the cabinet 110 of the oven 100 . One end of the rotating assembly 1222 is rotatably connected to the fixing member 1221 .

[0041] The fixing member 1221 includes a first rotating shaft 1221' and a second rotating shaft 1221". In an example, the first rotating shaft 1221' is farther away from the box body than the second rotating shaft 1221". The door body 121 is connected to the fixing member 1221 via the first rotating shaft 1221', and the door body 121 can rotate relative to the fixing member 1221 via the first rotating shaft 1221'. The rotating component 1222 is connected to the fixing member 1221 via the second rotating shaft 1221", and the rotating component 1222 can rotate relative to the fixing member 1221 via the second rotating shaft 1221". The door body 121 and the rotating assembly 1222 are connected to the fixed part 1221 through the first rotating shaft 1221' and the second rotating shaft 1221" arranged at intervals. The rotating shafts of the door body 121 and the rotating assembly 122 are arranged at intervals so that when the door body 121 rotates around the axis, there will be a radial distance difference between the door body 121 and the rotating assembly 1222, so that the rotating assembly 1222 can move or slide on the door body 121 in the radial direction, thereby realizing the connection or disconnection of the switch.

[0042] The moving assembly 1222 includes a first rotating plate 1222' and a second rotating plate 1222" that are rotatably connected. The pressing piece 123 is fixed to an end of the first rotating plate 1222' away from the second rotating plate 1222", and the second rotating plate 1222" is rotatably connected to the fixing member 1221 through the second rotating shaft 1221".

[0043] The first rotating plate 1222' includes a first slide groove 1, a first slide bar 11 is arranged in the first slide groove 1, the first slide groove 1 extends along the moving direction of the pressing plate 123, and the two ends of the first slide bar 11 are fixed to the two side surfaces of the door body mounting tube A. During the rotation of the rotating assembly 1222, the first slide bar 11 does not move, and the first slide groove 1 moves relative to the first slide bar 11. The first rotating plate 1222' and the second rotating plate 1222" are connected by a connecting shaft H, and the two ends of the second elastic member B2 are connected to the first slide bar 11 and the connecting shaft H, respectively.

[0044] The door body mounting tube A includes a second slide groove 2 and a third slide groove 3. The connecting shaft H is arranged in the second slide groove 2, and the third slide rod 33 is arranged in the third slide groove 3. The rolling element C and the first elastic member B1 are linked with the movement of the third slide rod 33 along the third slide groove 3.

[0045] like Figure 4As shown, the one end of the rotating assembly 1222 includes a rolling member C that cooperates with the surface of the raised portion of the fixing member 1221 and a first elastic member B1 that cooperates with the rolling member C, and the rolling member C and the first elastic member B1 are linked with the rotation of the door body 121. The rolling member C passes along the surface from one side of the raised portion to the other side of the raised portion, the elastic member is deformed, and the door body 121 switches between a closed state and an open state.

[0046] The rolling element C is arranged on the third sliding rod 33, the first elastic member B1 is arranged on an elastic member retaining seat B', the elastic member retaining seat B' is connected to the third sliding rod 33, and an elastic member stopper B" is arranged at one end of the first elastic member B1 away from the third sliding rod 33.

[0047] In one example, a protrusion is provided on the side of the second rotating plate 1222", which abuts against the door body mounting tube A. The abutment between the protrusion and the door body mounting tube A can increase the damping force when the second rotating plate 1222" rotates, so that the door body 121 can stop at a certain angle.

[0048] The pressing piece 123 is arranged at the other end of the rotating component 1222, that is, the end of the rotating component 1222 away from the fixing member 1221. The pressing piece 123 is linked with the rotating component 1222. As the rotating component 1222 rotates, the pressing piece 123 can move or slide in the door body 121.

[0049] The contact switch 124 is disposed on the door body 121 and is located within the moving or sliding range of the pressing sheet 123 in the door body 121. As the pressing sheet 123 moves or slides in the door body 121, the pressing sheet 123 can contact the contact switch 124. When the pressing sheet 123 contacts the contact switch 124, the contact switch 124 is turned on, the oven 100 is started, and the oven 100 starts to work. As the pressing sheet 123 moves or slides in the door body 121, the pressing sheet 123 can be disconnected from the contact switch 124. When the pressing sheet 123 is disconnected from the contact switch 124, the oven 100 is turned off, and the oven 100 stops working.

[0050] In one example, the pressing piece 123 is installed at the opening of the door body mounting tube A. After the pressing piece 123 extends out of the door body mounting tube A, it contacts the contact switch 124. After the pressing piece 123 retracts into the door body mounting tube A, it disconnects from the contact switch 124.

[0051] In one example, the first elastic member B1 includes a compression spring, and the second elastic member B2 includes a tension spring.

[0052] When the door body 121 rotates to close, the rolling element C at one end of the rotating component 1222 cooperates with the surface of the raised portion of the fixed component 1221, and the rolling element C passes along the surface from one side of the raised portion to the other side of the raised portion, and the second elastic member B2 changes from a free state to a compressed state; when the door body 121 rotates to open, the rolling element C at one end of the rotating component 1222 cooperates with the surface of the raised portion of the fixed component 1221, and the rolling element C passes along the surface from the other side of the raised portion to the one side of the raised portion, and the second elastic member B2 changes from a compressed state to a free state.

[0053] Specifically, when the door body 121 rotates to close, the rolling member C at one end of the rotating assembly 1222 cooperates with the surface of the raised portion of the fixing member 1221, and the rolling member C moves from one side of the raised portion along the surface to the other side of the raised portion. The rolling member C is compressed in the process, and the rolling member C drives the third slide bar 33 to move upward, and the upward movement of the third slide bar 33 drives the elastic member retaining seat B' to move upward. The upward movement of the elastic member retaining seat B' causes the second elastic member B2 located between the elastic member retaining seat B' and the elastic member stopper B" to be compressed. When the door body 121 rotates to open, the rolling member C at one end of the rotating assembly 1222 Cooperating with the surface of the raised portion of the fixing member 1221, the rolling member C moves from the other side of the raised portion along the surface to the one side of the raised portion (opposite to the path when the door body is closed as mentioned above). After reaching the one side of the raised portion, the rolling member C is disengaged from the surface of the raised portion, and the rolling member C no longer abuts against the surface of the raised portion. The surface of the raised portion no longer applies an upward force to the rolling member C, and the rolling member C moves downward to a certain extent. The downward movement of the rolling member C drives the third sliding rod 33 to move downward, and the downward movement of the third sliding rod 33 drives the elastic component retaining seat B' to move downward. The downward movement of the elastic component retaining seat B' causes the first elastic member B1 to gradually change from a compressed state to a free state.

[0054] In addition to the effect of the radial distance difference between the door body 121 and the rotating assembly 1222 due to their different axis rotation, the movement of the pressing piece 123 also contributes to the effect of the first elastic member B1 and the second elastic member B2 below. The effects of the first elastic member B1 and the second elastic member B2 are as follows:

[0055] Referring to the above, when the door body 121 rotates to close, the second elastic component B2 changes from a free state to a compressed state, and the compressed second elastic component B2 applies upward pressure to the elastic component stopper B". Since the elastic component stopper B" is arranged on the second rotating plate 1222", the second rotating plate 1222" will move upward, and the upward movement of the second rotating plate 1222" drives the first rotating plate 1222' to move upward. The pressing plate 123 is arranged at the end of the first rotating plate 1222'. Therefore, the upward movement of the first rotating plate 1222' will drive the pressing plate 123 to move upward.

[0056] Referring to the above, when the door body 121 rotates to open, the second elastic component B2 changes from a compressed state to a free state. During this process, the upward force of the first elastic component B1 on the elastic component stopper B" gradually decreases to 0, and the elastic component stopper B" gradually decreases. Since the elastic component stopper B" is arranged on the second rotating plate 1222", the second rotating plate 1222" will move downward, and the downward movement of the second rotating plate 1222" drives the first rotating plate 1222' to move downward. The pressing plate 123 is arranged at the end of the first rotating plate 1222'. Therefore, the upward movement of the first rotating plate 1222' will drive the pressing plate 123 to move downward.

[0057] The first elastic member B1 provides a buffering force when the door body is closed, and the buffering force buffers the impact when the pressing piece and the contact switch contact each other, thereby extending the service life of the contact switch.

[0058] The first elastic component B1 and the second elastic component B2, or the first elastic component B1, provide a pre-tightening force for the closed state of the door body, which prevents the user from opening the door body at will. This can prevent the door body from being easily opened when the heating device is turned on, causing the user to be scalded by the high-temperature steam in the oven.

[0059] In summary, the present application sets the contact switch on the door body, and links the switch with the opening and closing of the door body, thereby simplifying the structure of the cooker. By setting the first elastic member and the second elastic member, the first elastic member B1 and the first elastic member B2 provide a buffering force and a pre-tightening force when the door body is closed. The buffering force buffers the impact of the contact between the pressing plate and the contact switch, and extends the life of the contact switch. The pre-tightening force prevents the user from opening the door body at will, thereby preventing the door body from being easily opened when the heating device is turned on, causing the user to be scalded by the high-temperature steam in the oven. The cooker of the present application has a simplified structure and low cost, and at the same time safely and effectively ensures that the oven can be started and stopped normally when the door is opened and closed.

[0060] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A door assembly for a cooking appliance, characterized in that: include: a door body rotatably connected to a housing of the cooking appliance; A door hinge assembly, comprising a fixing member and a rotating assembly, wherein the fixing member is mounted on the box of the cooking appliance, and one end of the rotating assembly is rotatably connected to the fixing member; A pressing plate, arranged at the other end of the rotating assembly, and the rotating assembly drives the pressing plate to move on the door body; as well as A contact switch, arranged on the door body and located within the moving range of the pressing sheet; Wherein, the one end of the rotating assembly includes a rolling member that cooperates with the surface of the raised portion of the fixing member and a first elastic component that cooperates with the rolling member, and the rolling member and the first elastic component are linked with the rotation of the door body.

2. The door assembly of the cooking appliance according to claim 1, characterized in that: The rolling element moves along the surface from one side of the protrusion to the other side of the protrusion, the elastic member is deformed, and the door body switches between a closed state and an open state.

3. The door assembly of the cooking appliance according to claim 1, characterized in that: The fixing member includes a first rotating shaft and a second rotating shaft arranged at an interval, the first rotating shaft is farther away from the box body than the second rotating shaft, the door body is connected to the fixing member through the first rotating shaft, and the rotating assembly is connected to the fixing member through the second rotating shaft.

4. The door assembly of the cooking appliance according to claim 3, characterized in that: The rotating assembly includes a first rotating plate and a second rotating plate which are rotatably connected, the pressing plate is fixed to an end of the first rotating plate away from the second rotating plate, and the second rotating plate is connected to the fixing member via the second rotating shaft.

5. The door assembly of the cooking appliance according to claim 4, characterized in that: The first rotating plate includes a first slide groove, a first slide rod is arranged in the first slide groove, the first slide groove extends along the moving direction of the pressing sheet, the first rotating plate and the second rotating plate are connected by a connecting shaft, and a second elastic component is connected between the first slide rod and the connecting shaft.

6. The door assembly of the cooking appliance according to claim 5, characterized in that: The door body includes a door body mounting tube, the door body mounting tube includes a second slide groove and a third slide groove, the connecting shaft is arranged in the second slide groove, a third slide rod is arranged in the third slide groove, and the rolling element and the first elastic component are linked with the movement of the third slide rod along the third slide groove.

7. The door assembly of the cooking appliance according to claim 6, characterized in that: The rolling element is arranged on the third sliding rod, the first elastic member is arranged on an elastic member retaining seat, the elastic member retaining seat is connected to the third sliding rod, and an elastic member stopper is arranged at one end of the first elastic member away from the third sliding rod.

8. The door assembly of the cooking appliance according to claim 5, characterized in that: The first elastic member includes a compression spring, and the second elastic member includes a tension spring.

9. The door assembly of a cooking appliance according to claim 1, characterized in that: The pressing piece includes an inclined guide portion.

10. A cooking utensil, characterized in that: include: Box; as well as A door assembly for a cooking appliance according to any one of claims 1 to 9.

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