Roller support and microwave oven

Abstract

The utility model provides a roller support and a microwave oven, the microwave oven comprises a cavity, and a glass turntable is arranged in the cavity and used for placing food; the roller bracket is arranged between a bottom plate of the cavity and the glass turntable and comprises a bracket and a roller, and a mounting structure is arranged on the bracket and is used for limiting and assembling the roller and enabling the roller not to be in contact with the cavity; the highest point of the rolling wheel protrudes out of the installation structure and abuts against the glass rotating disc. According to the utility model, the highest point of the roller is abutted against the glass turntable, and a gap is formed between the lowest point and the cavity, so that the roller is effectively prevented from directly contacting with the bottom of the cavity and even a powder spraying layer is prevented from falling off; the friction noise between the roller and the cavity is reduced, and the service life of the whole machine is greatly prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household appliances, specifically relates to a roller support and microwave oven. BACKGROUND

[0002] The microwave oven has become one of indispensable cooking appliances in modern families by using the heat generated by the high-speed movement and friction of water molecules to rapidly heat food.

[0003] In order to make the food evenly heated, a motor is generally arranged at the bottom of the microwave oven cavity for driving the glass turntable to rotate; in order to ensure that the circular glass plate is placed stably in the cavity, a support structure such as a Y-shaped, O-shaped roller support is usually arranged for assistance, and a circular roller is arranged on the roller support to realize the stable rotation of the glass plate. The roller support disclosed in the prior application with the application number 201922182925.3 includes a support body, a plurality of fixed shafts are arranged on the support body, a connecting strip is formed between adjacent two fixed shafts, at least one connecting strip is provided with a buffer part, and the buffer part includes an outer buffer surface and / or an inner buffer. This scheme can effectively prevent the roller support from breaking or being damaged, and the metal surface will be continuously worn when the roller rolls in the cavity, which will cause rust on the bottom of the cavity and seriously affect the customer experience.

[0004] Therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0005] The utility model solves the problem that the existing microwave oven rotating support structure is easy to wear the metal surface of the cavity bottom plate and even rust.

[0006] To solve the above problems, the utility model provides a roller support for a microwave oven, wherein the microwave oven includes a cavity, a glass turntable is arranged in the cavity for placing food; the roller support is arranged between the bottom plate of the cavity and the glass turntable and includes a support and a roller, an installation structure is arranged on the support for limiting assembly of the roller and making the roller not contact the cavity; the highest point of the roller protrudes from the installation structure and abuts against the glass turntable.

[0007] This arrangement can ensure that the highest point of the roller abuts against the glass turntable, while the lowest point does not contact the lower bottom surface of the cavity, thereby effectively avoiding direct contact between the roller and the bottom of the cavity and even the peeling of the powder layer; the friction noise between the roller and the cavity is reduced, and the service life of the whole machine is greatly improved.

[0008] Preferably, the mounting structure comprises vertically arranged and spaced apart first and second side walls, the first and / or second side wall is provided with a limiting groove, at least one side of the roller is provided with a rotating shaft, and the rotating shaft is limitedly assembled into the limiting groove. This arrangement is simple in structure and high in production efficiency.

[0009] Preferably, the first and second side walls are respectively provided with limiting grooves, both sides of the roller are respectively provided with rotating shafts, and the rotating shafts are in a horizontal state and are limitedly assembled into the limiting grooves. This arrangement can realize quick disassembly and assembly of the roller, and the roller and the glass turntable are in linear contact, so that the support of the glass turntable is more stable.

[0010] Preferably, the limiting groove comprises a receiving portion, the receiving portion is arc-shaped and the value of the arc is (1.05-1.2)*pi, the corresponding diameter of the receiving portion is D1, the diameter of the rotating shaft is D2, and D1=(1.0-1.1)*D2. This arrangement can make the upper part of the receiving portion gradually shrink, and the rotating shaft is located at the opening of the receiving portion during installation. By pressing downward, the opening of the receiving portion is deformed, so that the rotating shaft is limitedly assembled into the receiving portion. The roller only contacts the limiting groove, and the frictional resistance during use is small.

[0011] Preferably, the limiting groove further comprises a guide portion, the guide portion is communicated with the receiving portion through a limiting portion, the guide portion comprises oppositely arranged first and second inclined surfaces, the first and second inclined surfaces are respectively located on both sides of the limiting portion, the diameter of the receiving portion is W1, the minimum distance of the limiting portion is W2, and W1W2. This arrangement can lower the requirement for the initial position of the rotating shaft. The rotating shaft can be located directly above the receiving portion through the guide portion, and can be assembled into the receiving portion by applying a downward force, so that the installation efficiency is high.

[0012] Preferably, the mounting structure further comprises a connecting plate, both ends of the connecting plate are respectively connected with the first and second side walls; and the connecting plate is two and respectively located at both ends of the first or second side wall. This arrangement can improve the overall mechanical strength of the mounting structure, and shield the roller from the side to improve the overall appearance.

[0013] Preferably, the bracket is in a "ring" shape and is separately arranged or integrally formed with the mounting structure, and the mounting structure is multiple and is distributed at equal intervals along the outer circumferential side of the bracket. This arrangement can improve the overall mechanical strength of the mounting structure, and shield the roller from the side to improve the overall appearance.

[0014] Preferably, the cross section of the bracket is in the shape of "H", and the lower end surface of the bracket is in the same plane as the lower end surface of the mounting structure. This arrangement not only saves raw materials, but also enables the bracket and the mounting structure to be in contact with the cavity bottom plate, further increases the contact area, and effectively prevents the rolling wheel bracket from shaking during use.

[0015] The utility model also provides a microwave oven, including above-mentioned rolling wheel bracket, the cavity still includes cavity bottom plate, be provided with recess portion on the cavity bottom plate, the rolling wheel bracket limit assembly is in recess portion. This arrangement can reduce the overall installation height of the rolling wheel bracket, and the overall structure is more compact while enabling the cavity to have a large space, and the user experience is good.

[0016] Preferably, the microwave oven further comprises a connector, and the recess portion is partially protruded towards the side close to the glass turntable to form a support table, and the connector is partially penetrated through the support table and connected with the motor drive for driving the glass turntable to rotate. This arrangement can increase the mechanical strength of the cavity bottom plate by using the support table, and provides installation space for the assembly of the motor, ensuring that the overall occupied space of the driving device of the microwave oven is small and the structure is more compact.

[0017] Compared with the prior art, the rolling wheel bracket and the microwave oven have the following beneficial effects: 1) the rolling wheel bracket can avoid direct contact with the bottom of the cavity and even prevent the powder layer from falling off; the rolling wheel bracket does not rotate during use, which can further reduce the friction noise of the rolling wheel bracket; 2) the rolling wheel is provided with a rotating shaft on each side and is limit assembled with the mounting structure, so that the rolling wheel is more balanced in stress, effectively avoiding the tilting of the rolling wheel; 3) simple structure, easy to produce and process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the existing microwave oven;

[0019] Figure 2 It is a schematic diagram of the structure of the rolling wheel bracket in the existing microwave oven;

[0020] Figure 3 It is a schematic diagram of the structure of the microwave oven according to the embodiment of the utility model;

[0021] Figure 4 It is a front view of the rolling wheel bracket according to the embodiment of the utility model;

[0022] Figure 5 It is a cross-sectional view of the rolling wheel bracket according to the embodiment of the utility model;

[0023] Figure 6 It is an exploded view of the rolling wheel bracket according to the embodiment of the utility model;

[0024] Figure 7 The structure schematic view of the support is described in the embodiment of the utility model.

[0025] Mark explanation:

[0026] 1-door assembly;2-control panel;3-cavity;31-cavity bottom plate;311-recess;312-supporting table;4-connector;5-roller support;51-support;52-roller;521-rotation shaft;53-mounting structure;531-first side wall;532-second side wall;533-connection plate;534-limiting groove;5341-receiving part;5342-limiting part;5343-guiding part;6-glass turntable. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in combination with the drawings. On the premise of no conflict, the technical features of the embodiments of the utility model can be combined with each other.

[0028] It should be noted that all the terms for indicating direction and position in the utility model, such as "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer", "top", "low", "transverse", "longitudinal", "center" and the like, are only used to explain the relative position relationship, connection condition and the like between components in a certain state (as shown in the drawings), and are only for the convenience of describing the utility model, and do not require the utility model to be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model. In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features.

[0029] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected;It can be mechanical connection;It can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0030] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] As a common household appliance, microwave ovens are favored by people because of their convenience, fast heating and easy operation. The traditional microwave oven is provided with a glass turntable 6 for placing food and a roller support 5 for supporting the glass turntable 6 in the heating cavity, and the glass turntable 6 is driven to rotate by a motor 8 arranged at the bottom of the heating cavity. The roller support 5 includes a support 51 and a roller 52 rotatably arranged at the edge of the support 51, as shown in Figures 1-2 However, the following disadvantages exist: 1) the roller 52 is in contact with the lower surface of the cavity 3 for a long time, which can cause the powder layer on the surface of the metal material to fall off; 2) if the roller is skewed, the force on the rotating glass will be uneven. Therefore, the applicant proposes the following technical solution:

[0032] As shown in Figures 3-7 A roller support 5 for a microwave oven, the microwave oven includes a cavity 3, a glass turntable 6 is arranged in the cavity 3 for placing food; the roller support 5 includes a support 51 and a roller 52, the support 51 is provided with a mounting structure 53 for limiting assembly of the roller 52, and the roller 52 is rotatably assembled to the mounting structure 53; the highest point of the roller 52 protrudes from the mounting structure 53 and abuts against the glass turntable 6, and there is a gap between the roller 52 and the cavity 3.

[0033] This arrangement can ensure that the highest point of the roller 52 abuts against the glass turntable 9, while the lowest point does not contact the lower bottom surface of the cavity 3, thereby effectively avoiding direct contact between the roller 52 and the bottom of the cavity 3 and even the situation of powder layer falling off; reducing the friction noise between the roller 52 and the cavity 3, greatly improving the service life of the whole machine.

[0034] As an example of the utility model, the installation structure 53 includes vertically arranged and mutually spaced first side wall 531, second side wall 532, the first side wall 531 and / or second side wall 532 are provided with limiting groove 534, at least one side of the roller 52 is provided with rotating shaft 521, the rotating shaft 521 is limitedly assembled into the limiting groove 534. As an example of the utility model, the first side wall 531 is provided with limiting groove 534, the second side wall 532 is provided with limiting hole, both sides of the roller 52 are provided with rotating shaft 521 respectively, one side of rotating shaft 521 is inserted into the limiting hole, and the rotating shaft 521 of the other side is limitedly assembled into the limiting groove 534.

[0035] Preferably, the first side wall 531, second side wall 532 are provided with limiting groove 534 respectively, both sides of the roller 52 are provided with rotating shaft 521 respectively, the rotating shaft 521 is limitedly assembled into the limiting groove 534 and is in horizontal state. This setting can realize the quick disassembly and assembly of the roller 52, and the roller 52 and the glass turntable 6 are in linear contact, so that the support to the glass turntable 6 is more stable.

[0036] As an example of the utility model, the installation structure 53 further includes connecting plate 533, both ends of the connecting plate 533 are connected with the first side wall 531 and the second side wall 532 respectively. This setting can improve the overall mechanical strength of the installation structure 53, and the roller 52 is shielded from the side, improving the overall appearance. Preferably, the connecting plate 533 is two and is located at both ends of the first side wall 531 or the second side wall 532 respectively. This setting can further improve the overall mechanical strength of the installation structure 53, and the structure is simple and the appearance is beautiful.

[0037] As an example of the utility model, the support 51 is in the shape of "ring" as a whole, and the installation structure 53 is multiple and is distributed along the outer circumferential side of the support 51 at equal intervals. This setting can improve the contact points of the roller support 5 and the glass turntable 6 to disperse the stress, so that the rotation of the glass turntable 6 is more stable and reliable. Preferably, the installation structure 53 and the support 51 are integrally formed. This setting can simplify the assembly difficulty, and improve the overall mechanical strength of the installation structure 53.

[0038] Preferably, the limiting groove 534 comprises a containing portion 5341, the containing portion 5341 is arc-shaped and the arc value is (1.05-1.2)*pi, the corresponding diameter of the containing portion 5341 is D1, the diameter of the rotating shaft 521 is D2, wherein D1=(1.0-1.1)*D2. This arrangement can make the upper part of the containing portion 5341 gradually shrink, and when installing, the rotating shaft 521 is placed at the opening of the containing portion 5341, and the opening of the containing portion 5341 is deformed by pressing downward, so that the rotating shaft 521 is limitedly assembled into the containing portion 5341; the roller 52 only contacts with the limiting groove 534, and the friction resistance in use is small.

[0039] As an example of the utility model, the limiting groove 534 further comprises a guide portion 5343, the guide portion 5343 is communicated with the containing portion 5341 through a limiting portion 5342, the guide portion 5343 comprises oppositely arranged first and second inclined surfaces, the first and second inclined surfaces are respectively located on the two sides of the limiting portion 5342, the diameter of the containing portion 5341 is W1, and the minimum distance of the limiting portion 5342 is W2, wherein W1W2. This arrangement can reduce the initial position requirement of the rotating shaft 521, the rotating shaft 521 can be above the containing portion 5341 through the guide portion 5343, and the rotating shaft 521 can be assembled into the containing portion 5341 by applying force downward, so that the installation efficiency is high.

[0040] As an example of the utility model, the cross section of the support 51 is "H" type, and the lowest point of the support 51 is in the same plane as the lowest point of the mounting structure 53. This arrangement not only saves raw materials, but also makes the support 51 and the mounting structure 53 contact with the cavity bottom plate 31, further increases the contact area, and effectively prevents the roller support 5 from shaking in use.

[0041] The utility model also provides a microwave oven, which comprises the above-mentioned roller support 5, and the microwave oven further comprises a cavity bottom plate 31 arranged on the cavity bottom plate 31, a recess 311 is arranged on the cavity bottom plate 31, and the roller support 5 is limitedly assembled into the recess 311. This arrangement can reduce the overall installation height of the roller support 5, make the overall structure more compact, and make the cavity 3 have a large space, so that the user experience is good.

[0042] The microwave oven further comprises a connector 4, the recess 311 is partially protruded towards the side close to the glass turntable 6 to form a support table 312, and the connector 4 is partially penetrated through the support table 312 and connected with a motor drive, which is used for driving the glass turntable 6 to rotate. This arrangement can make the cavity 3 have a larger internal space; and the support table 312 can limit the assembly of the connector 4, so that the assembly is stable and reliable.

[0043] The microwave oven further comprises a door assembly 1 and a control panel 2, one side of the cavity 3 forms a first opening, and the door assembly 1 is arranged at the first opening in an openable and closable mode; the control panel 2 is located at one side of the door assembly 1, and the specific structure and assembly relationship thereof are all prior art and will not be described herein.

[0044] Although the utility model discloses as above, the utility model is not limited to this. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model should be limited by the range defined in the claims.

Claims

1. A roller support for a microwave oven, said microwave oven comprising a cavity (3) inside which a glass turntable (6) is arranged for placing food; characterized in that, The roller support (5) is arranged between the bottom plate of the cavity (3) and the glass turntable (6) and comprises a support (51) and rollers (52), the support (51) is provided with a mounting structure (53) for limiting assembly of the rollers (52) and making the rollers (52) not in contact with the bottom plate of the cavity (3), the highest point of the roller (52) protrudes from the mounting structure (53) and abuts against the glass turntable (6).

2. The roller holder of claim 1, wherein The mounting structure (53) comprises vertically arranged and mutually spaced first side walls (531) and second side walls (532), the first side wall (531) and / or the second side wall (532) is provided with a limiting groove (534), at least one side of the roller (52) is provided with a rotating shaft (521), and the rotating shaft (521) is limitedly assembled into the limiting groove (534).

3. The roller support of claim 2, wherein, The first side wall (531) and the second side wall (532) are respectively provided with limiting grooves (534), and both sides of the roller (52) are respectively provided with rotating shafts (521), the rotating shafts (521) are in a horizontal state and are limitedly assembled into the limiting grooves (534).

4. The roller holder of claim 3, wherein The limiting groove (534) comprises a containing portion (5341), the containing portion (5341) is arc-shaped and the value of the arc is (1.05-1.2)*pi, the corresponding diameter of the containing portion (5341) is D1, the diameter of the rotating shaft (521) is D2, and D1=(1.0-1.1)*D2.

5. The roller support of claim 4, wherein, The limiting groove (534) further comprises a guide portion (5343) in communication with the containing portion (5341) through a limiting portion (5342), the guide portion (5343) comprises oppositely arranged first and second inclined surfaces, the first and second inclined surfaces are respectively located on both sides of the limiting portion (5342), the diameter of the containing portion (5341) is W1, and the minimum distance of the limiting portion (5342) is W2, wherein W1>W2.

6. The roller holder of claim 2, wherein The mounting structure (53) further comprises a connecting plate (533), both ends of the connecting plate (533) are connected with the first side wall (531) and the second side wall (532) respectively, and the connecting plate (533) has two and is located at both ends of the first side wall (531) or the second side wall (532) respectively.

7. The roller holder of claim 1, wherein The support (51) is in the shape of a ring as a whole and is arranged in a separate or integrated mode with the mounting structure (53), and the mounting structure (53) has a plurality of structures and is distributed at equal intervals along the outer circumferential side of the support (51).

8. The roller support of claim 7, wherein, The cross section of the support (51) is in the shape of "H", and the lower end surface of the support (51) is in the same plane as the lower end surface of the mounting structure (53).

9. A microwave oven characterized by comprising: The roller support (5) comprises the roller support (5) of any one of claims 1-8, the cavity (3) comprises a cavity bottom plate (31), the cavity bottom plate (31) is provided with a recess (311), and the roller support (5) is limitedly assembled into the recess (311).

10. The microwave oven as claimed in claim 9, wherein The microwave oven further comprises a connector (4), the recess (311) is partially protruded to the side close to the glass turntable (6) to form a support table (312), the connector (4) is partially penetrated through the support table (312) and connected with a motor drive, for driving the glass turntable (6) to rotate.

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