Drawer-type cooking apparatus

Abstract

The utility model provides a kind of drawer type cooking device, including cavity, drawer, the cavity inside has cooking cavity, the drawer is connected with the cavity in the way of being able to move back and forth in cooking cavity, the left and right sides of the drawer are respectively provided with gyro wheel, the gyro wheel is in rolling contact with the bottom wall of cavity, and can be in clearance fit or rolling contact with the side wall of cavity;The included angle of the rotation center axis of the gyro wheel and horizontal plane is 0 °-60 °;The utility model can effectively reduce the setting number of gyro wheel, reduce the structural complexity of moving component on drawer compared with prior art on the basis of also can solve drawer left and right shaking problem, facilitate to reduce the assembly difficulty of drawer in cooking cavity.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a drawer-type cooking device. Background Technology

[0002] Cooking appliances, such as electric ovens and microwave ovens, are equipped with a cooking cavity and a door assembly. After cooking, the user opens the door assembly and reaches into the cooking cavity to remove the heated food. Since the door assembly of existing cooking appliances is mostly located on the front and is hinged to the cooking cavity, after opening the door assembly, the user needs to hold the food and move it horizontally a certain distance before reaching upwards to remove it, making food removal inconvenient. At the same time, if the temperature inside the cooking cavity is high, the user may suffer burns when reaching into the cooking cavity to remove food, affecting the user experience.

[0003] Drawer-type cooking appliances allow food to be pulled out of the cooking cavity along with the drawer, making it easy for users to take out the cooked food directly from the drawer. Due to their convenience, drawer-type cooking appliances have gradually begun to dominate the market.

[0004] In drawer-type cooking appliances, the drawer inevitably wobbles from side to side during the pulling and pulling process. To address this, existing technologies often incorporate multiple sets of rollers with different rolling axes, especially vertically oriented rollers. This ensures smooth drawer operation while also limiting the drawer's movement in the lateral direction. However, this structural design also makes the drawer's movement-related components more complex, increasing the difficulty of assembling the drawer within the cooking cavity. Utility Model Content

[0005] In view of this, the present invention aims to propose a drawer-type cooking device to solve the problem that the structure related to movement on the drawer in the prior art is relatively complex, which makes the assembly of the drawer in the cooking cavity difficult.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A drawer-type cooking device includes a cavity and a drawer. The cavity has a cooking chamber inside. The drawer is connected to the cavity in a manner that allows it to move back and forth within the cooking chamber. Rollers are respectively provided on the left and right sides of the drawer. The rollers make rolling contact with the bottom wall of the cavity and can also make clearance fit or rolling contact with the side wall of the cavity. The rotation center axis of the rollers has an angle of 0°-60° with the horizontal plane.

[0008] Furthermore, in the direction of the rotation center axis of the roller, a first conical surface is provided on one side of the roller and a second conical surface is provided on the other side. The first conical surface makes rolling contact with the side wall, and the second conical surface makes clearance fit or rolling contact with the bottom wall.

[0009] Furthermore, the sum of the half-cone angle of the first cone and the half-cone angle of the second cone is 90°.

[0010] Furthermore, the angle between the rotation center axis of the roller and the horizontal plane is 30°-60°.

[0011] Furthermore, a transition slope is provided between the bottom wall and the side wall, and the circumferential surface of the roller makes rolling contact with the transition slope. The transition slope is parallel to the rotation center axis of the roller.

[0012] Furthermore, the circumferential surface of the roller makes rolling contact with the bottom wall, and the side surface of the roller makes clearance fit or rolling contact with the side wall; the angle between the rotation center axis of the roller and the horizontal plane is 0°, and the axial width K of the roller is greater than or equal to the radial diameter of the roller.

[0013] Furthermore, the ratio of K to the radial diameter of the roller is 1.5-3.5.

[0014] Furthermore, the roller is provided with balls on its side, which are located between the roller and the side wall and are rotatable relative to the roller and the side wall.

[0015] Furthermore, the drawer includes a door, a support frame, and a slide rail assembly. The front of the support frame is connected to the door, and rollers are respectively provided on both sides of the rear of the support frame. The drawer is slidably connected to the cavity through the slide rail assembly.

[0016] Furthermore, the support frame is provided with an assembly plate, and the rollers are rotatably connected to the assembly plate.

[0017] Compared with the prior art, the drawer-type cooking device of this utility model has the following advantages:

[0018] The present invention discloses a drawer-type cooking device, which, based on the existing drawer-type cooking device, only has two rollers and does not require any modification to the existing cavity structure. Only the setting of the rollers needs to be adjusted so that the rollers can make rolling contact with the bottom wall and also have gap cooperation or rolling contact with the side wall. On the one hand, this ensures the normal drawing and pulling process of the drawer, and on the other hand, the cavity itself can provide a limiting effect on the rollers and the drawer in the left and right directions. Compared with the prior art, it eliminates the need for rollers with vertical rolling axes, reduces the number of rollers, and can also limit the drawer in the left and right directions, preventing the drawer from wobbling from side to side during the drawing and pulling process.

[0019] Correspondingly, while also solving the problem of drawer wobbling, this application, compared with the prior art, can effectively reduce the number of rollers and reduce the structural complexity of moving parts on the drawer, which helps to reduce the difficulty of assembling the drawer in the cooking cavity. Attached Figure Description

[0020] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0021] Figure 1 This is a schematic diagram of the drawer-type cooking device described in an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of the drawer-type cooking device described in an embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional schematic diagram of the drawer-type cooking device described in this embodiment of the invention, inside the cavity.

[0024] Figure 4 For the embodiments of this utility model in Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 This is a partial schematic diagram (exploded state) of the connection between the roller and the bottom and side walls of the cavity in an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the drawer structure described in an embodiment of the present utility model;

[0027] Figure 7 This is a schematic diagram of another structure of the drawer described in an embodiment of the present utility model;

[0028] Figure 8 This is an exploded view of the drawer-type cooking device described in an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the structure between the front panel, outer shell, and cavity as described in an embodiment of the present utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Outer shell; 11. Left side panel; 12. Right side panel; 13. Bottom plate; 101. First space; 102. Second space; 103. Third space; 2. Cavity; 21. Bottom wall; 22. Side wall; 23. Transition slope; 3. Front panel; 31. First opening; 32. Second opening; 33. Third opening; 4. Drawer; 41. First slide rail assembly; 412. First movable rail; 413. First connecting rail; 42. Second slide rail assembly; 421. Second fixed rail; 422. Second movable rail; 423. Second connecting rail; 43. Third slide rail assembly; 431. Third fixed rail; 432. Third movable rail; 433. Third connecting rail; 44. Door; 45. Support frame; 451. Assembly plate; 46. Roller; 461. First conical surface; 462. Second conical surface; 463. Wheel circumference. Detailed Implementation

[0032] The inventive concepts of this disclosure will be described below using terminology commonly used by those skilled in the art to convey the essence of their work to others skilled in the art. However, these inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments described herein.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The directional terms used in this application refer to the conventional orientation of the cooking device in its normal assembly and placement state, and can be found in the appendix. Figure 1 The coordinates in the diagram.

[0034] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] To address the problem that the complex structure related to movement on the drawer in existing technologies makes assembly of the drawer within the cooking cavity difficult, this embodiment proposes a drawer-type cooking device, as shown in the attached figure. Figure 1-9 As shown, the drawer-type cooking device includes a cavity 2 and a drawer 4. The cavity 2 has a cooking chamber inside. The drawer 4 is connected to the cavity 2 in a manner that allows it to move back and forth within the cooking chamber. Rollers 46 are respectively provided on the left and right sides of the drawer 4. The rollers 46 make rolling contact with the bottom wall 21 of the cavity 2 and can make clearance fit or rolling contact with the side wall 22 of the cavity 2. The angle between the rotation center axis (i.e., the rolling axis) of the roller 46 and the horizontal plane is 0°-60°.

[0036] It should be noted that, in order to avoid ambiguity, the cavity 2 is often provided with two side walls 22 on the left and right sides. Correspondingly, the drawer 4 is provided with corresponding rollers 46 on the left and right sides. In this application, the rollers 46 can contact the side wall 22, which means that the rollers 46 can contact the side wall 22 adjacent to them, such as the left roller contacting the left side wall.

[0037] Therefore, this application, based on the existing drawer-type cooking device, only sets two rollers 46, and does not require any modification to the existing cavity structure. It only needs to adjust the setting of the rollers 46 so that the rollers 46 can make rolling contact with the bottom wall 21 while also making clearance contact or rolling contact with the side wall 22. On the one hand, it ensures the normal drawing process of the drawer, and on the other hand, the cavity 2 itself can provide a limiting effect on the rollers 46 and the drawer 4 in the left and right directions. Compared with the prior art, it eliminates the need for rollers with vertical rolling axes, reduces the number of rollers, and can also achieve the limiting effect on the drawer in the left and right directions, preventing the drawer from wobbling left and right during the drawing process.

[0038] Correspondingly, while also solving the problem of drawer wobbling, this application, compared with the prior art, can effectively reduce the number of rollers and reduce the structural complexity of moving parts on the drawer, which helps to reduce the difficulty of assembling the drawer in the cooking cavity.

[0039] The drawer 4 includes a door 44, a support frame 45, and a slide rail assembly. The front of the support frame 45 is connected to the door 44, and rollers 46 are respectively provided on both sides of the rear of the support frame 45. The drawer 4 is slidably connected to the cavity 2 through the slide rail assembly, thereby further improving the smoothness of the drawer during the pulling process.

[0040] The rear of the support frame 45 is provided with an assembly plate 451, and the rollers 46 are rotatably connected to the assembly plate 451. The assembly plate 451 can be integrally stamped during the processing of the support frame 45, without the need for additional setting or assembly, which helps to simplify the overall structure of the support frame 45 and the drawer 4.

[0041] Regarding the specific configuration of the roller 46, this application proposes the following forms.

[0042] Form 1

[0043] As attached Figure 4 As shown, in the direction of the rotation center axis of the roller 46, a first conical surface 461 is provided on one side of the roller 46 and a second conical surface 462 is provided on the other side. The first conical surface 461 is in rolling contact with the side wall 22, and the second conical surface 462 is in clearance fit or rolling contact with the bottom wall 21. The sum of the cone angle of the first conical surface 461 and the cone angle of the second conical surface 462 is 180°, or in other words, the sum of the slope angle (half cone angle) of the first conical surface 461 and the slope angle (half cone angle) of the second conical surface 462 is 90°.

[0044] In order to avoid unnecessary spatial interference, both the first conical surface 461 and the second conical surface 462 are flat-topped conical shapes. Of course, if the space is set properly, they can also be conventional conical shapes.

[0045] Preferably, in Form 1, the angle between the rotation center axis (i.e., the rolling axis) of the roller 46 and the horizontal plane is 30°-60°, preferably 45°, to avoid the roller 46 being too tilted, so as to ensure the stability of the roller 46 during operation, and at the same time avoid generating excessive force on the roller itself and the corresponding roller assembly structure (bearing frame 45, assembly plate 451).

[0046] Based on this, as attached Figure 5 As shown, this application makes structural improvements to the connection between the bottom wall 21 and the side wall 22.

[0047] A transition slope 23 is provided between the bottom wall 21 and the side wall 22. The circumferential surface 463 of the roller 46 rolls in contact with the transition slope 23. Correspondingly, the transition slope 23 is parallel to the rotation center axis of the roller 46. Thus, based on the cooperation between the two conical surfaces of the roller 46 and the bottom wall 21 and the side wall 22, the further provision of the transition slope 23 supports the circumferential surface 463 of the roller 46. On the one hand, this prevents part of the roller 46 from being in a suspended state, which helps to improve the force distribution of the roller 46. On the other hand, it increases the contact area between the roller 46 and the cavity 2, which helps to ensure the smooth rolling of the roller 46 and improves the smoothness of the drawer 4 during the pulling and retracting process.

[0048] Form Two

[0049] As attached Figure 7 As shown, the rotation center axis (i.e., rolling axis) of the roller 46 makes an angle of 0° with the horizontal plane, and the axial width K of the roller 46 is greater than or equal to the radial diameter of the roller 46; the circumferential surface 463 of the roller 46 rolls in contact with the bottom wall 21, and the side of the roller 46 adjacent to the side wall 22 has a clearance fit or rolls in contact with the side wall 22. Accordingly, the roller 46 can be widened based on a conventional roller, for example, the ratio of K to the radial diameter of the roller 46 is 1.5-3.5 for reference, and it is recommended to use the actual space dimensions as the standard.

[0050] That is, in Form 2, the rolling axis of the roller 46 is set horizontally and the roller 46 is made wider. On the one hand, this increases the contact area between the roller 46 and the bottom wall 21, improving the smoothness of the movement of the roller 46 and the drawer 4. On the other hand, it allows the roller 46 to get close to the side wall 22, or even have a certain degree of contact with the side wall 22, ensuring that the cavity 2 limits the roller 46 and the drawer 4 in the left and right directions, and preventing the drawer from wobbling left and right during the pulling process.

[0051] In the second form, since the side of the roller 46 may come into contact with the side wall 22, causing excessive friction, preferably, a ball bearing (not shown) is provided on the side of the roller 46 near the side wall 22. The ball bearing is connected to the roller 46 and can rotate relative to the roller 46 and the side wall 22, so that even if the roller 46 and the side wall 22 come into contact, only rolling friction will be generated (similar to the function of bearing balls), and no sliding friction will be generated between surfaces. This helps to reduce resistance and ensure the smoothness of the drawer during the pulling process.

[0052] For the assembly between drawer 4, slide rail assembly, and cavity 2, the slide rail assembly includes a fixed rail and a movable rail. Both the fixed rail and the movable rail are arranged in the front-to-back direction. The fixed rail is connected to the cavity 2, and the movable rail is connected to the door 44 and / or the support frame 45. The movable rail is connected to the fixed rail and can slide along the fixed rail.

[0053] The fixed rail has a groove structure, and the movable rail can slide within the groove. The rail assembly includes a connecting rail, which is disposed between the fixed rail and the movable rail. The width of the connecting rail does not exceed the width of the groove of the fixed rail, so that the connecting rail is located within the groove. The movable rail is wrapped around the connecting rail and is driven to slide by the connecting rail.

[0054] To further improve the connection stability of the fixed rail, the drawer-type cooking device includes a front panel 3, which is connected to the front side of the cavity 2. While the main body of the fixed rail is connected to the cavity 2, one end of the fixed rail is connected to the front panel 3, and the other end is connected to the rear panel of the cavity 2. This allows the entire fixed rail to be more securely fixed inside the cooking device, providing a stable support for the movable rail and preventing unnecessary displacement or loosening of the movable rail during sliding.

[0055] To improve the smoothness of the drawer's operation during pulling out, this application provides three slide rail assemblies, designated as the first slide rail assembly 41, the second slide rail assembly 42, and the third slide rail assembly 43. Specifically, the drawer-type cooking device includes a front panel 3 and a housing 1. The front panel 3 is connected to the front side of the housing 1 and the cavity 2. The first slide rail assembly 41 is located on the left side of the drawer 4, the second slide rail assembly 42 is located on the right side of the drawer 4, and the third slide rail assembly 43 is located at the bottom of the drawer 4. Any one of the slide rail assemblies can extend or retract relative to the front panel 3. Thus, by using the three connecting surfaces and three slide rails of the drawer, the direction of the drawer's pulling out is limited, ensuring smooth operation and preventing unnecessary jamming during the process.

[0056] A first space 101, a second space 102, and a third space 103 are provided between the outer shell 1 and the cavity 2. The first space 101 and the second space 102 are located on the left and right sides of the cavity 2, respectively, and the third space 103 is located at the bottom of the cavity 2. Specifically, the first space 101 is formed between the left side wall of the cavity 2 and the left side plate 11 of the outer shell 1, the second space 102 is formed between the right side wall of the cavity 2 and the right side plate 12 of the outer shell 1, and the third space 103 is formed between the bottom wall 21 of the cavity 2 and the bottom plate 13 of the outer shell 1.

[0057] The first slide rail assembly 41 is disposed inside the first space 101, the second slide rail assembly 42 is disposed inside the second space 102, the third slide rail assembly 43 is disposed inside the third space 103, and the front plate 3 covers the front side of the first space 101, the second space 102 and the third space 103.

[0058] The front plate 3 is provided with a first opening 31, a second opening 32, and a third opening 33. The first slide rail assembly 41 passes through the first opening 31, the second slide rail assembly 42 passes through the second opening 32, and the third slide rail assembly 43 passes through the third opening 33.

[0059] The first slide rail assembly 41 includes a first fixed rail (not shown), a first movable rail 412, and a first connecting rail 413. The first fixed rail is connected to the cavity 2, the first movable rail 412 is slidably connected to the first fixed rail, and the first connecting rail 413 is fixedly connected to the first movable rail 412, preferably by fasteners. Correspondingly, the first opening 31 is provided with a clearance notch to allow space for the fasteners of the first connecting rail 413 and the first movable rail 412.

[0060] The second slide rail assembly 42 includes a second fixed rail 421, a second movable rail 422, and a second connecting rail 423. The second fixed rail 421 is connected to the cavity 2, the second movable rail 422 is slidably connected to the second fixed rail 421, and the second connecting rail 423 is fixedly connected to the second movable rail 422, preferably by fasteners. Correspondingly, the second opening 32 is provided with a clearance notch to allow space for the fasteners of the second connecting rail 423 and the second movable rail 422.

[0061] The third slide rail assembly 43 includes a third fixed rail 431, a third movable rail 432, and a third connecting rail 433. The third fixed rail 431 is connected to the cavity 2, the third movable rail 432 is slidably connected to the third fixed rail 431, and the third connecting rail 433 is fixedly connected to the third movable rail 432, preferably by fasteners. Correspondingly, the third opening 33 is provided with a clearance notch to allow space for the fasteners of the third connecting rail 433 and the third movable rail 432.

[0062] The drawer-type cooking device described in this embodiment can be a microwave oven, electric oven, electric steamer, etc.

[0063] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drawer-type cooking device, characterized in that, The drawer-type cooking device includes a cavity (2) and a drawer (4). The cavity (2) has a cooking chamber inside. The drawer (4) is connected to the cavity (2) in a way that it can move back and forth in the cooking chamber. Rollers (46) are respectively provided on the left and right sides of the drawer (4). The rollers (46) roll in contact with the bottom wall (21) of the cavity (2) and can be in clearance fit or roll in contact with the side wall (22) of the cavity (2). The angle between the rotation center axis of the roller (46) and the horizontal plane is 0°-60°.

2. The drawer-type cooking device according to claim 1, characterized in that, In the direction of the rotation center axis of the roller (46), a first conical surface (461) is provided on one side of the roller (46) and a second conical surface (462) is provided on the other side. The first conical surface (461) rolls in contact with the side wall (22), and the second conical surface (462) has a clearance fit or rolls in contact with the bottom wall (21).

3. A drawer-type cooking device according to claim 2, characterized in that, The sum of the half-cone angle of the first cone (461) and the half-cone angle of the second cone (462) is 90°.

4. A drawer-type cooking device according to claim 2, characterized in that, The rotation center axis of the roller (46) is at an angle of 30°-60° with the horizontal plane.

5. A drawer-type cooking device according to claim 2, characterized in that, A transition slope (23) is provided between the bottom wall (21) and the side wall (22). The circumferential surface (463) of the roller (46) is in rolling contact with the transition slope (23). The transition slope (23) is parallel to the rotation center axis of the roller (46).

6. A drawer-type cooking device according to claim 1, characterized in that, The circumferential surface (463) of the roller (46) rolls in contact with the bottom wall (21), and the side of the roller (46) is in clearance fit or rolling contact with the side wall (22); the rotation center axis of the roller (46) is at an angle of 0° with the horizontal plane, and the axial width K of the roller (46) is greater than or equal to the radial diameter of the roller (46).

7. A drawer-type cooking device according to claim 6, characterized in that, The ratio of K to the radial diameter of the roller (46) is 1.5-3.

5.

8. A drawer-type cooking device according to claim 6, characterized in that, The roller (46) has balls on its side, which are located between the roller (46) and the side wall (22) and can rotate relative to the roller (46) and the side wall (22).

9. A drawer-type cooking device according to claim 1, characterized in that, The drawer (4) includes a door (44), a support frame (45), and a slide rail assembly. The front part of the support frame (45) is connected to the door (44), and rollers (46) are respectively provided on both sides of the rear part of the support frame (45). The drawer (4) is slidably connected to the cavity (2) through the slide rail assembly.

10. A drawer-type cooking device according to claim 9, characterized in that, The support frame (45) is provided with an assembly plate (451), and the rollers (46) are rotatably connected to the assembly plate (451).

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