Door opening device, cooker and integrated cooker

Abstract

The utility model discloses a door opening device, which comprises a door opening piece, a door locking piece and a door locking piece, and the driving mechanism is used for driving the door opening piece to do linear reciprocating motion and limiting the moving stroke of the door opening piece, so that the box door is opened to a preset angle. The utility model further discloses a cooker and an integrated cooker. The steam box has the advantages that steam is prevented from burning a user when the box door is opened, and the requirement for steam dissipation can be met by customizing the door opening angle.

Description

Technical Field

[0001] The utility model relates to a door opening device, a cooking device and an integrated stove, belonging to the technical field of kitchen appliances. Background Art

[0002] At present, built-in cooking appliances (such as steamers and ovens), especially those configured as lower units of integrated stoves, generally have doors that are rotatably connected to the opening of the cooking box by hinges. After cooking is completed, the user pulls a handle on the door to open the door, so that the door rotates from a vertical state of the closed cooking box to a horizontal state, and then takes out the tray containing the objects in the cooking box. This way of opening the door will cause the steam in the cooking box to directly rush towards the user, resulting in a poor user experience and even causing the user to be burned by the steam, posing certain safety hazards. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a door opening device, a cooker and an integrated stove, so as to prevent the steam from burning the user when the door is opened, and to enable the door opening angle to be customized to match the need for dissipated steam.

[0004] The utility model is realized through the following technical solutions.

[0005] A door opening device, comprising:

[0006] The door opening member can move back and forth in a straight line to push the door open;

[0007] The driving mechanism is used to drive the door opening member to move back and forth in a straight line and limit the moving stroke of the door opening member, so that the box door opens to a preset angle.

[0008] As a further improvement of the utility model, the driving mechanism includes a driver, a rotating shaft driven by the driver, and a crank-connecting rod assembly that transmission-connects the rotating shaft and the door opening member.

[0009] As a further improvement of the utility model, it also includes an induction switch for sensing that the drive is closed when the door opening member moves to a minimum movement stroke.

[0010] As a further improvement of the present invention, the induction switch has an induction sheet, and the arrangement position of the induction sheet is suitable for contacting the door opening member or the crank connecting rod assembly when the door opening member moves to a minimum movement stroke.

[0011] As a further improvement of the present invention, the crank-connecting rod assembly includes a first connecting rod rotatably connected to the rotating shaft, a second connecting rod rotatably connected to the door opening member, and a rotating connection part between the first connecting rod and the second connecting rod, and the setting position of the sensor plate is suitable for the door opening member to contact the rotating connection part when it moves to the minimum moving stroke.

[0012] As a further improvement of the utility model, it also includes a guiding structure for guiding the door opening member to move in a straight line direction.

[0013] As a further improvement of the present invention, the guide structure includes a guide member extending along the moving direction of the door opening member, and the guide member and the door opening member are slidably connected.

[0014] As a further improvement of the present invention, the door opening member has a guide groove extending along its moving direction, and the guide member is slidably assembled in the guide groove, or the guide member has a guide groove extending along the moving direction of the door opening member, and the door opening member is slidably assembled in the guide groove.

[0015] As a further improvement of the present invention, the guide structure comprises a guide sleeve, and the guide sleeve is slidably sleeved on the door opening member.

[0016] As a further improvement of the present invention, the door opening member has a plurality of connection points arranged at intervals along its moving direction, which are used for transmission connection with the crank-connecting rod assembly.

[0017] As a further improvement of the utility model, it also includes a shell, the driver is arranged outside the shell, the rotating shaft extends into the shell, the shell has a space for accommodating the crank connecting rod assembly and the door opening member, and the shell is provided with a window allowing the door opening member to extend out.

[0018] A cooking device comprises a cooking box, a rotatably connected box door, and a door opening device, wherein the door opening device is used to open the box door.

[0019] As a further improvement of the utility model, it also includes a bracket arranged outside the cooking box, the size of the box door is larger than the opening of the cooking box, and the door opening device is arranged on the bracket.

[0020] An integrated stove comprises the cooking device.

[0021] Beneficial effects of the utility model:

[0022] 1. By setting a door opening piece, the door can be automatically pushed open, so that the steam in the cooker can escape through the gap of the door, preventing the steam from directly rushing towards the user when the user manually opens the door, causing burns to the user, thereby eliminating safety hazards;

[0023] 2. Since the movement stroke of the door opening member is controlled by the driver, that is, the driver can customize the movement distance of the door opening member in the linear direction, so as to open the door to a preset angle, the opening angle of the door can be set according to different cooking conditions in the cooker to match different requirements for dissipated steam;

[0024] 3. The crank-connecting rod assembly can realize the linear reciprocating movement of the door opening member and ensure the continuous and smooth rotation of the shaft, thereby providing a stable power output for the door opening member to push the door open. The crank-connecting rod assembly has a simple and compact structure and can realize its transmission function in a limited space;

[0025] 4. Due to the induction switch, when the door opening part moves to the minimum travel distance, it can be sensed by the induction switch and the driver can be turned off. Each reset of the door opening part is equivalent to completing a position correction without the need for a timed drive, thus avoiding errors.

[0026] 5. The guide structure is used to guide the door opening member to move in a straight line to prevent the crank connecting rod assembly from deflecting when driving the door opening member to move, so as to ensure the accuracy of the preset angle of the door opening;

[0027] 6. The crank-connecting rod assembly is connected to different connection points, so that the door opening piece can have different maximum movement strokes, thereby adjusting the maximum opening angle of the door. Users can adjust it according to their needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following is a detailed description of the preferred implementation examples of the present invention with reference to the accompanying drawings to help understand the purpose and advantages of the present invention, wherein:

[0029] Figure 1 This is a schematic diagram of the structure of the door opening device for implementing Case 1;

[0030] Figure 2 It is a schematic diagram of the explosion of the door opening device of the implementation case 1 from a viewing angle;

[0031] Figure 3 It is a schematic diagram of the explosion of the door opening device of the implementation case 1 from another perspective;

[0032] Figure 4 Schematic diagram of a cooking device according to Example 2. DETAILED DESCRIPTION

[0033] The utility model is further described in detail below based on the accompanying drawings and implementation cases.

[0034] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0035] Implementation Case 1:

[0036] A door opening device is mainly used in cooking appliances, such as ovens, steamers, etc., and its function is to open the door of the oven. Figure 1-3 , including a door opening member 31 and a driving mechanism, wherein the door opening member 31 is a long strip structure, which can move back and forth in a straight line direction, and the door opening member 31 is used to push open the rotatably connected door so that steam can escape from the cooker; the driving mechanism is used to drive the door opening member 31 to move back and forth in a straight line, and limits the moving stroke of the door opening member 31, so that the door is opened to a preset angle.

[0037] In this embodiment, firstly, by setting the door opening member 31, the door can be automatically pushed open, so that the steam in the cooker can escape through the gap of the door opening, so as to prevent the steam from directly rushing to the user when the user manually opens the door, causing burns to the user, thereby eliminating safety hazards. Secondly, since the movement stroke of the door opening member 31 is controlled by the driver 32, that is, the driver 32 can customize the movement distance of the door opening member 31 in the straight line direction, so as to open the door to a preset angle, the door opening angle can be set according to different cooking conditions in the cooker to match different requirements for dissipating steam. For example, when a large amount of steam is generated in the cooker, a larger door opening angle can be preset, and when a small amount of steam is generated, a smaller door opening angle can be preset.

[0038] In this embodiment, the driving mechanism includes a driver 32, a rotating shaft 321 and a crank-connecting rod assembly 33, wherein the rotating shaft 321 is driven directly or indirectly by the driver 32, and the driver 32 can be specifically configured as a bidirectional reduction motor, and the crank-connecting rod assembly 33 is connected to the rotating shaft 321 and the door opening member 31. The crank-connecting rod assembly 33 can realize the linear reciprocating movement of the door opening member 31, and can ensure that the rotating shaft 321 rotates continuously and smoothly, thereby providing a stable power output for the door opening member 31 to push open the door. The crank-connecting rod assembly 33 has a simple and compact structure and can realize its transmission function in a limited space, which is very suitable for the installation configuration of the door opening device. In addition, by controlling the start-up time of the driver 32, the crank-connecting rod assembly 33 can be controlled to drive the movement stroke of the door opening member 31 to match the preset angle of the door opening, and the control logic is relatively simple and reliable.

[0039] The door opening device of this embodiment also includes a shell 37, and the driver 32 is arranged outside the shell 37, specifically, it can be fixedly mounted on the outer wall of the shell 37, and the rotating shaft 321 passes through the shell 37 and extends into the inside of the shell 37. The inside of the shell 37 is hollow, and the crank connecting rod assembly 33 and the door opening member 31 are both arranged inside the shell 37. More specifically, the internal space of the shell 37 includes a disc-shaped chamber and a linear channel, wherein most of the crank connecting rod assembly 33 is located in the chamber, and the chamber provides a rotatable space for the crank connecting rod assembly 33, and the door opening member 31 and a small part of the crank connecting rod assembly 33 are located in the channel, and the channel provides a linear reciprocating space for the door opening member 31. The shell 37 is provided with a window 37a at the end of the corresponding channel to allow the door opening member 31 to extend out of the window 37a to push open the door.

[0040] In addition, the shell 37 includes two half-shell structures 371, and the two half-shell structures 371 are detachably connected by fasteners. During assembly, the crank-connecting rod assembly 33 and the door opening member 31 can be installed into one of the half-shell structures 371, and then the other half-shell structure 371 can be assembled to obtain a complete shell 37.

[0041] The door opening device of this embodiment also includes a sensor switch 34, which can sense that the door opening member 31 moves to the minimum travel and close the driver 32. When the cooker finishes cooking and needs to open the door to dissipate steam, the driver 32 is turned on and drives the shaft 321 to rotate forward for several seconds, driving the crank connecting rod assembly 33 to drive the door opening member 31 to move along a straight line for a predetermined travel, so that the door opening member 31 opens the door. In theory, when the door needs to be closed, the driver 32 drives the shaft 321 to rotate in the opposite direction for the same time, so that the door opening member 31 can move to the minimum travel to complete the reset. However, there will be certain errors in actual use, especially after long-term use. The accumulation of errors will cause the door opening member 31 to deviate from the minimum travel distance after reset, thereby causing the predetermined travel of the door opening member 31 to deviate, and then causing the preset angle of the door to open to deviate. In this embodiment, since the sensing switch 34 is provided, when the door opening member 31 moves to the minimum moving stroke, it can be sensed by the sensing switch 34 and the driver 32 is turned off. Each reset of the door opening member 31 is equivalent to completing a position correction without the need for timed driving of the driver 32, thereby avoiding errors.

[0042] As for the induction switch 34, in this embodiment, the induction switch 34 has an induction sheet 341. The setting position of the induction sheet 341 in the door opening device is suitable for contacting the door opening member 31 or the crank connecting rod assembly 33 when the door opening member 31 moves to the minimum movement stroke. The minimum movement stroke of the door opening member 31 is sensed by contacting the induction sheet 341, which is more reliable and stable than other sensing methods.

[0043] More specifically, the crank connecting rod assembly 33 includes a first connecting rod 331 connected to the rotating shaft 321, a second connecting rod 332 rotatably connected to the door opening member 31, and a rotating connecting portion 333 of the first connecting rod 331 and the second connecting rod 332. The induction switch 34 and the induction sheet 341 are arranged in the cavity in the housing 37, and the arrangement position of the induction sheet 341 is suitable for contacting with the rotating connecting portion 333 when the door opening member 31 moves to the minimum movement stroke. In the space in the housing 37, the space of the cavity is larger than that of the channel, so it is the best solution to arrange the induction sheet 341 in the cavity and contact with the rotating connecting portion 333.

[0044] The door opening device of this embodiment also includes a guide structure, which is used to guide the door opening member 31 to move in a straight line to avoid the crank connecting rod assembly 33 from deflecting when driving the door opening member 31 to move, so as to ensure the accuracy of the preset angle of the door opening.

[0045] As for the guiding structure, in the present embodiment, the guiding structure includes a guiding member 35, which is a linear structure and extends along the moving direction of the door opening member 31. The guiding member 35 is arranged in a channel in the shell 37 and is slidingly connected to the door opening member 31, thereby playing a guiding role for the door opening member 31.

[0046] Furthermore, in this embodiment, the door opening member 31 has a guide groove 311 extending along the moving direction thereof, and the guide member 35 is slidably assembled in the guide groove 311, thereby realizing the sliding connection between the guide member 35 and the door opening member 31. The guide groove 311 can also be set on the guide member 35, and the door opening member 31 is slidably assembled in the guide groove 311 on the guide member 35.

[0047] In this embodiment, the guide structure also includes a guide sleeve 36 , which is disposed in a channel in the shell 37 . The guide sleeve 36 is slidably sleeved on the door opening member 31 , and also plays a guiding role for the door opening member 31 .

[0048] In this embodiment, the door opening member 31 has a plurality of connection points 31a arranged at intervals along its moving direction, which are used for transmission connection with the crank-connecting rod assembly 33. The crank-connecting rod assembly 33 is connected to different connection points 31a, so that the door opening member 31 can have different maximum movement strokes, thereby adjusting the maximum opening angle of the door, and the user can adjust it according to needs.

[0049] In addition, a long strip-shaped adjustment slot 37b is provided at a corresponding position of the housing 37, and the user can use a tool to reach into the adjustment slot 37b to connect the crank connecting rod assembly 33 to different connection points without disassembling the housing 37, which is convenient to use. More specifically, the second connecting rod 331 and the connection point 31a of the door opening member 31 are detachably connected by a detachable fastener such as a screw, and the second connecting rod 331 can be detachably connected by using a screwdriver to reach into the adjustment slot 37b.

[0050] Implementation Case 2:

[0051] A cooking device, referring to Figure 4 Combined with Figure 1-Figure 3 , comprising a cooking box 11, a rotatably connected box door 12, and a door opening device 3, wherein the door opening device 3 is as shown in implementation case 1, and the door opening device 3 is used to open the box door 12.

[0052] In this embodiment, the cooker also includes a bracket 13 arranged outside the cooking box 11, the size of the box door 12 is larger than the opening of the cooking box 11, and the door opening device is arranged on the bracket 13. The door opening piece 31 of the door opening device 3 presses against the part of the box door 12 corresponding to the outside of the cooking box 11 to complete the opening of the box door 12. Disposing the door opening device 3 outside the cooking box 11 can avoid the influence of the high temperature environment in the cooking box 11 on the door opening device 3.

[0053] Implementation Case 3:

[0054] An integrated stove includes a cooker. The cooker is as shown in Implementation Example 2, and the cooker is configured as a lower machine of the integrated stove.

[0055] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation cases of the utility model.

Claims

1. A door opening device, characterized in that: include: The door opening member (31) can move back and forth in a straight line and is used to push the door open; The driving mechanism is used to drive the door opening member (31) to move back and forth in a straight line and to limit the moving stroke of the door opening member (31), so that the box door is opened to a preset angle.

2. The door opening device according to claim 1, characterized in that: The driving mechanism comprises a driver (32), a rotating shaft (321) driven by the driver (32), and a crank-connecting rod assembly (33) drivingly connecting the rotating shaft (321) and the door opening member (31).

3. The door opening device according to claim 2, characterized in that: It also includes a sensing switch (34) for sensing that the door opening member (31) moves to a minimum movement stroke and then closes the driver (32).

4. The door opening device according to claim 3, characterized in that: The induction switch (34) has an induction sheet (341), and the setting position of the induction sheet (341) is suitable for contacting the door opening member (31) or the crank connecting rod assembly (33) when the door opening member (31) moves to the minimum movement stroke.

5. The door opening device according to claim 4, characterized in that: The crank-connecting rod assembly (33) includes a first connecting rod (331) rotatably connected to the rotating shaft (321), a second connecting rod (332) rotatably connected to the door opening member (31), and a rotating connecting portion (333) rotatably connected to the first connecting rod (331) and the second connecting rod (332), and the setting position of the sensing plate (341) is suitable for contacting the rotating connecting portion (333) when the door opening member (31) moves to the minimum moving stroke.

6. The door opening device according to claim 2, characterized in that: It also comprises a guiding structure for guiding the door opening member (31) to move in a straight line direction.

7. The door opening device according to claim 6, characterized in that: The guide structure comprises a guide member (35) extending along the moving direction of the door opening member (31), and the guide member (35) and the door opening member (31) are slidably connected.

8. The door opening device according to claim 7, characterized in that: The door opening member (31) has a guide groove (311) extending along its moving direction, and the guide member (35) is slidably assembled in the guide groove (311); or, the guide member (35) has a guide groove (311) extending along the moving direction of the door opening member (31), and the door opening member (31) is slidably assembled in the guide groove (311).

9. The door opening device according to claim 6, characterized in that: The guide structure comprises a guide sleeve (36), and the guide sleeve (36) is slidably sleeved on the door opening member (31).

10. The door opening device according to claim 2, characterized in that: The door opening member (31) has a plurality of connection points (31a) arranged at intervals along its moving direction, and is used for transmission connection with the crank connecting rod assembly (33).

11. The door opening device according to claim 2, characterized in that: The invention also comprises a shell (37), wherein the driver (32) is arranged outside the shell (37), the rotating shaft (321) extends into the shell (37), the shell (37) has a space for accommodating the crank connecting rod assembly (33) and the door opening member (31), and the shell (37) is provided with a window (37a) for allowing the door opening member (31) to extend out.

12. A cooking device, characterized in that: The cooking box comprises a cooking box (11) and a rotatably connected box door. (12) The door opening device (3) according to any one of claims 1 to 11, wherein the door opening device (3) is used to open the cabinet door (12).

13. The cooking device according to claim 12, characterized in that It also comprises a bracket (13) arranged outside the cooking box (11), the size of the box door (12) is larger than the opening of the cooking box (11), and the door opening device (3) is arranged on the bracket (13).

14. An integrated stove, characterized in that: Comprising a cooking device as claimed in claim 12 or 13.

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