CN108361764B - Heating cooker - Google Patents

Abstract

The present invention provides a heating cooker, including: a base; the cavity is arranged on the base, a heating cavity for placing food is formed in the cavity, and an opening for the food to enter and exit is formed in one side of the heating cavity; the door body is arranged on the cavity and used for closing or opening the opening; the upper cover is arranged on the cavity in a covering manner; the door body includes: a semi-cylindrical door surface forming a see-through part; a lower movable guide rail formed in an annular shape, which fixes the door surface from below; and an upper movable guide rail formed in an annular shape, which fixes the door surface from the upper side, and the door surface, the lower movable guide rail and the upper movable guide rail are integrally connected. Through the technical scheme of the invention, the rapid sliding abrasion and the overlarge sliding friction resistance of the door body can be avoided, the tight contact of the sliding part relative to the non-sliding part can be ensured, and the moderate loose contact of the sliding part relative to the non-sliding part can be ensured, so that the door body can be ensured to be stable in the sliding process.

Description

heating cooker

technical field

The present invention relates to the technical field of household appliances, in particular, to a heating cooker.

Background technique

Generally, as shown in FIG. 1 , a heating cooker such as a microwave oven has a rectangular parallelepiped shape, and includes a heating chamber for placing food to be heated and a door that can close the cooking chamber from an opening in front of the heating chamber. This kind of door body is generally a side-pull or pull-down door structure, that is, the door body can be opened sideways or downwards with the side or lower side of the opening as the axis.

In addition to the traditional rectangular parallelepiped-shaped heating cooker, cylindrical heating cookers have also appeared in the prior art. The cylindrical heating cooker is popular with users because of its unique appearance that can provide users with a new experience. The cylindrical heating cooker can be provided with a side-pull door opening method as described above, and can also be adapted to a cylindrical cavity, so that the door can slide sideways relative to the cavity to open and close the door.

In the process of realizing the above-mentioned side sliding door opening and closing method, the inventor found that, on the one hand, in order to ensure that the door body is relatively stable during the sliding process, the sliding parts of the door body need to be in close contact with other non-sliding parts; On the one hand, in order to prevent the sliding wear of the door body from being too fast and the sliding frictional resistance being too large, it is necessary to make the sliding parts of the door body loose in contact with other non-sliding parts.

SUMMARY OF THE INVENTION

The present invention aims to provide a heating cooker, which can prevent the door body from sliding and wearing too fast and the sliding frictional resistance from being too large while ensuring the door body is relatively stable during the sliding process.

In order to achieve the above purpose, the technical solution of the present invention provides a heating cooker, comprising: a base; a cavity, which is arranged on the base, and a heating cavity for placing food is formed inside, and one side of the heating cavity is formed for food to enter and exit The door body, which is arranged on the cavity, is used to close or open the opening; the upper cover, which is covered on the cavity; the door body includes: a semi-cylindrical door surface that constitutes a perspective part; The lower side movable guide rail in the shape of a ring, which fixes the door surface from the lower side; the upper side movable guide rail formed as a circular ring, which fixes the door surface from the upper side, and the door surface, the lower side movable guide rail and the upper side movable guide rail are connected into one overall.

In this technical solution, the door surface, the lower movable guide rail and the upper movable guide rail are connected as a whole, and the integral structure is constructed as the sliding part of the door body. When opening or closing the opening, the sliding part of the door body not only avoids The door surface is in direct contact with other non-sliding parts, avoiding the problem of excessive sliding wear and sliding friction resistance of the door body, and can ensure that the sliding parts are in close contact with the non-sliding parts, and can also ensure that the sliding parts are in relatively loose contact with the non-sliding parts. , so it can ensure that the door body is relatively stable during the sliding process.

In addition, the heating cooker in the above technical solutions provided by the present invention may also have the following additional technical features:

In the above technical solution, preferably, the door surface comprises: an outer see-through layer formed in a semi-cylindrical shape; an inner see-through layer adapted to the outer see-through layer and also formed in a semi-cylindrical shape; The metal mesh layer also formed in a semi-cylindrical shape in between, and a plurality of through holes are formed on its surface.

In the above technical solution, preferably, the door body further comprises: a lower fixed guide rail, which is formed into a ring shape adapted to the lower movable guide rail, and used to support the lower movable guide rail from the lower side and/or the outer side, And the lower side movable guide rail can slide relative to the lower side fixed guide rail or roll through a plurality of rollers arranged between the two; The upper side and/or the outer side support the upper side movable guide rail, and the upper side movable guide rail can slide relative to the upper side fixed guide rail or roll through a plurality of rollers arranged therebetween.

In any of the above technical solutions, preferably, a first rack is formed on the door body, a door body driving mechanism is installed in the base, and the door body driving mechanism can engage with the first rack to drive the door body to rotate.

In the above technical solution, preferably, the first rack is formed on the inner wall surface of the lower movable guide rail, and the door driving mechanism can extend to the inner wall surface of the lower movable guide rail and engage with the first rack.

In the above technical solution, preferably, the first rack is formed on the bottom surface of the lower movable guide rail, and the door driving mechanism can extend to the bottom surface of the lower movable guide rail and engage with the first rack.

In the above technical solution, preferably, the first rack is formed on the inner wall surface of the door surface, and the door body driving mechanism can extend to the inner wall surface of the door surface and engage with the first rack.

In the above technical solution, preferably, the door body driving mechanism includes: a door body drive motor, a door body drive gear is arranged at the upper end of the door body drive gear, and the first rack is meshed with the door body drive gear, so that the door surface is driven by the door body drive motor. turn.

In the above technical solution, preferably, the lower fixed guide rail is provided with a lower groove for the lower movable guide rail to slide.

In the above technical solution, preferably, the lower movable guide rail is formed with an annular groove, and the door face is inserted into the groove.

Additional aspects and advantages of the present invention will become apparent in the description section that follows, or will be learned by practice of the present invention.

Description of drawings

Fig. 1 shows the structure diagram of the conventional heating cooker;

Fig. 2 shows a closed state diagram of the heating cooker according to the embodiment of the present invention;

FIG. 3 shows an open state diagram of the heating cooker according to the embodiment of the present invention;

FIG. 4 shows a structural diagram of a cavity according to an embodiment of the present invention;

5 shows a structural diagram of a door body and a guide rail structure according to an embodiment of the present invention;

6 shows an exploded structural view of a door body and a guide rail structure according to an embodiment of the present invention;

FIG. 7 shows a structural diagram of a lower movable guide rail according to an embodiment of the present invention;

Fig. 8 shows the enlarged view of part A in Fig. 7;

9 shows an exploded structural view of a door body and a guide rail structure according to yet another embodiment of the present invention;

The corresponding relationship between the reference numerals and the component names in Fig. 2 to Fig. 9 is:

10 base, 20 cavity, 21 bottom wall, 22 top wall, 23 rear wall, 34 heating cavity, 50 door body, 50a door face, 51 outer perspective layer, 52 inner perspective layer, 54 lower movable guide rail, 541 first Rack, 543 inner wall surface, 546 groove, 55 lower fixed guide rail, 552 lower groove, 56 roller, 57 upper movable guide rail, 58 upper fixed guide rail, 59 door drive motor, 60 door drive Gear, 70 cover.

Detailed ways

In order to understand the above objects, features and advantages of the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific details disclosed below. Example limitations.

As shown in FIGS. 2 to 9 , wherein, FIG. 2 is a schematic diagram of the heating cooker according to the embodiment of the present invention. FIG. 3 is a perspective view of the door body 50 in an open state. As shown in FIG. 2 and FIG. 3 , the heating cooker mainly includes a base 10, in which a lower electrical room (not shown) for installing electrical components such as a power supply board, a magnetron, and an inverter can be formed; a cavity 20, which Set on the base 10, a heating cavity 34 for placing food is formed inside, and one side of the heating cavity 34 is formed as an opening for food to enter and exit; a door 50, which is set on the cavity 20, is used to close or open the heating cavity 34. The upper cover 70 is placed on the cavity 20, and an upper electrical room (not shown) for the installation of electrical components such as fans and voice control modules can be formed inside.

FIG. 4 is an assembly diagram of the cavity 20 and its associated structure according to an embodiment of the present invention. As shown in FIG. 4 , the cavity 20 mainly includes: a bottom wall 21 , a top wall 22 and a rear wall 23 surrounding the heating cavity 34 . Corresponding to the above-mentioned base 10 may be circular, quasi-circular or rounded rectangle, etc., and the cavity 20 may be cylindrical, quasi-cylindrical or a cylinder with a rounded rectangular cross-section. The cavity 20 is a cylindrical shape as an example for description.

In this embodiment, the bottom wall 21 is in the shape of a circular plate, the rear wall 23 is in the shape of a substantially semicircular arc, and is arranged along the outer circumference of the bottom wall 21 , and the top wall 22 is also in the shape of a circular plate, and the outer circumference and the rear wall 23 are also in the shape of a circular plate. Thus, the bottom wall 21, the top wall 22 and the rear wall 23 are formed as the heating chamber 34 with the front side (the side facing the user operating the heating cooker) open and the rear side closed, the opening can be closed by the door body 50 or Open.

FIG. 5 is an assembly diagram of the door body 50 and its associated structure according to an embodiment of the present invention. FIG. 6 is an exploded schematic view of some components in FIG. 5 . As shown in FIG. 5 and FIG. 6 , the door body 50 mainly includes: an outer see-through layer 51 formed into a substantially semi-cylindrical shape; an inner see-through layer 52 adapted to the outer see-through layer 51 and also formed into a substantially semi-cylindrical shape; The metal mesh layer, which is also formed into a substantially semi-cylindrical shape and is disposed between the outer see-through layer 51 and the inner see-through layer 52, has many through holes formed on its surface to prevent microwaves from passing through the outer see-through layer from the heating cavity 34 under the microwave heating function. 51 and the inner see-through layer 52 are transmitted through, and together with the outer see-through layer 51 and the inner see-through layer 52 constitute the door surface 50a.

The lower side movable guide rail 54, which is formed as a substantially circular ring, is used for fixing the door surface 50a formed by the above-mentioned outer see-through layer 51, the inner see-through layer 52 and the metal mesh layer from the lower side; the lower side fixed guide rail 55 is formed as The ring shape adapted to the lower movable guide rail 54 is used to support the lower movable guide rail 54 from the lower side and/or the outer side. The lower fixed guide rail 55 is provided with a lower side recess for the lower side movable guide rail 54 to slide. The groove 552, the lower movable guide rail 54 is slidably arranged in the lower groove 552; and the lower movable guide rail 54 can slide relative to the lower fixed guide rail 55 or roll through a plurality of rollers 56 arranged between the two. ; The upper side movable guide rail 57 which is formed as a substantially circular ring, which is used to fix the above-mentioned door surface 50a from the upper side; The upper movable guide rail 57 is supported from the upper side and/or the outer side, the upper fixed guide rail 58 is provided with an upper groove (not shown) for the upper side movable guide rail 57 to slide, and the upper side movable guide rail 57 is slidable. The upper movable guide rail 57 can slide relative to the upper fixed guide rail 58 or roll through a plurality of rollers (not shown) arranged between the two.

Among them, the door surface 50a, the lower movable guide rail 54 and the upper movable guide rail 57 are connected as a whole.

It should be noted that, in the figure, since the metal mesh layer is closely attached to the outer see-through layer 51 and the inner see-through layer 52, its structure is not specifically shown in the figure.

In this embodiment, the sliding part of the door body composed of the door surface 50a, the lower side movable guide rail 54 and the upper side movable guide rail 57 can be formed by the lower side fixed guide rail 55 and the upper side fixed guide rail 58 (the door body non-sliding part) When opening or closing the opening, the sliding part of the door body not only avoids the direct contact between the door surface 50a and other non-sliding parts, but also avoids the problems of fast sliding wear and excessive sliding friction resistance of the door body 50, and can It is ensured that the sliding part is in close contact with the non-sliding part, and the sliding part is also moderately loose relative to the non-sliding part, so that the door body can be guaranteed to be relatively stable during the sliding process.

In addition, optionally, as shown in FIG. 6 , a door body driving mechanism can also be installed in the base 10 , and the door body driving mechanism includes a door body driving motor 59 , and a door body driving gear 60 is arranged at the upper end of the door body driving gear. 60 can be engaged with the first rack 541 formed on the door body 50 , so that the door body 50 can be automatically rotated under the driving of the door body driving motor 59 .

In an embodiment of the present invention, as shown in FIGS. 5 to 8 , the first rack 541 is formed on the inner wall surface 543 of the lower movable guide rail 54 , and the door driving mechanism can extend to the lower movable guide rail 54 The inner wall surface 543 is engaged with the first rack 541 .

In this embodiment, the door body driving motor 59 utilizes the meshed first rack 541 and the door body driving gear 60 so that the door body 50 can automatically open or close the opening, which increases the convenience for the user to use the heating cooker and improves the In addition, the first rack 541 is arranged on the inner wall surface 543 of the lower movable guide rail 54. When designing the installation position of the door driving mechanism, the door driving mechanism is arranged in the base 10 corresponding to the lower side movable The inner side of the guide rail 54 is sufficient, which provides more possibilities for rational layout of electrical components installed in the base 10, reduces the internal space of the heating cooker occupied by the door drive mechanism, and realizes miniaturization.

In another embodiment of the present invention, the first rack 541 is formed on the bottom surface of the lower movable guide rail 54 (not shown), and the door driving mechanism can extend to the bottom surface of the lower movable guide rail 54, and is connected with the bottom surface of the lower movable guide rail 54. The first rack 541 meshes.

In this embodiment, the first rack 541 is arranged on the bottom surface of the lower movable guide rail 54. When designing the installation position of the door driving mechanism, the door driving mechanism can be placed horizontally in the base 10, so that the door driving mechanism The height of the heating cooker is controlled within a certain range, and the height of the base 10 is reduced to a certain extent, thereby reducing the height of the heating cooker and realizing miniaturization; in addition, the heating cooker with a lower height operates more smoothly and has less noise.

As shown in FIG. 9 , in another embodiment of the present invention, the first rack 541 is formed on the inner wall surface of the door surface 50a, and the door driving mechanism can protrude to the inner wall surface of the door surface 50a, and is connected with the first rack 541 mesh.

In this embodiment, the first rack 541 is arranged on the door surface 50a. When the door body 50 is subjected to a large external force, the first rack 541 will not be separated from the door surface 50a, which improves the opening and closing process of the door body 50. stability.

It can be understood that the door surface 50a and the first rack 541 can be integrally formed or fixed together by welding, riveting or screw connection. This connection method is simple and easy to operate. When maintenance is required, it can be quickly It is easy to disassemble and re-install quickly after the maintenance is completed, which improves the convenience of use.

In any of the above embodiments, preferably, as shown in FIG. 8 , the lower movable guide rail 54 is formed with an annular groove 546 , and the door surface 50 a is inserted into the groove 546 .

In this embodiment, the door surface 50a is inserted into the groove 546 to realize the detachable connection between the door body 50 and the lower movable guide rail 54, which not only satisfies the requirements of the door surface 50a, the lower movable guide rail 54 and the upper movable guide rail 54 The overall sliding of the guide rail 57 facilitates the disassembly and assembly of the door surface 50a.

In any of the above embodiments, according to the different operating modes of the door body driving motor 59 when the door body 50 is controlled to open and close the opening, the first racks 541 with different lengths are provided, and the forward and reverse rotation of the door body drive motor 59 is used. To drive the sliding of the door body 50, only the first rack 541 can be set as a half ring to control the door body to open or close the opening; It is necessary to set the first rack 541 to the entire circumference, so that the door body 50 can open or close the opening.

In the present invention, the terms "first", "second" and "third" are only used for the purpose of description, and cannot be construed as indicating or implying relative importance; the term "multiple" refers to two or two above, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be It is directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the orientations shown in the accompanying drawings Or the positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or unit must have a specific direction, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiment", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in the present invention at least one embodiment or example of . In this specification, schematic representations of the above terms do not necessarily refer to the same implementation or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. A heating cooker, characterized by comprising:

a base (10);

the cavity (20) is arranged on the base (10), a heating cavity (34) for placing food is formed in the cavity, and one side of the heating cavity (34) is formed as an opening for the food to enter and exit;

the door body (50) is arranged on the cavity (20) and is used for closing or opening the opening;

an upper cover (70) which is arranged above the cavity (20);

the door body (50) includes:

a semi-cylindrical door surface (50a) constituting a see-through part;

a lower movable guide rail (54) formed in an annular shape, which fixes the door surface (50a) from below;

an upper movable guide rail (57) formed in an annular shape and fixing the door surface (50a) from the upper side,

the door surface (50a), the lower movable guide rail (54) and the upper movable guide rail (57) are connected into a whole;

a lower fixed rail (55) formed in a ring shape fitted to the lower movable rail (54) for supporting the lower movable rail (54) from the lower side and/or the outside, and the lower movable rail (54) being slidable with respect to the lower fixed rail (55) or rollable by a plurality of rollers (56) provided therebetween;

an upper fixed rail (58) formed in a ring shape fitted to the upper movable rail (57) for supporting the upper movable rail (57) from the upper side and/or the outer side, and the upper movable rail (57) is slidable with respect to the upper fixed rail (58) or rollable by a plurality of rollers provided therebetween.

2. The heating cooker according to claim 1, wherein the door face (50a) includes:

an outer see-through layer (51) formed in a semi-cylindrical shape;

an inner see-through layer (52) formed in a semi-cylindrical shape fitted to the outer see-through layer (51);

a metal mesh layer formed in a semi-cylindrical shape disposed between the outer see-through layer (51) and the inner see-through layer (52), and having a plurality of through holes formed on the surface thereof.

3. The heating cooker according to claim 1 or 2,

a first rack (541) is formed on the door body (50),

a door body driving mechanism is installed in the base (10), and the door body driving mechanism is meshed with the first rack (541) to drive the door body (50) to rotate.

4. The heating cooker according to claim 3, wherein the first rack (541) is formed on an inner wall surface (543) of the lower movable rail (54), and the door driving mechanism is capable of protruding to the inner wall surface (543) of the lower movable rail (54) and meshing with the first rack (541).

5. The heating cooker according to claim 3, wherein the first rack (541) is formed on a bottom surface of the lower movable rail (54), and the door driving mechanism is protruded to the bottom surface of the lower movable rail (54) and engaged with the first rack (541).

6. The heating cooker according to claim 3, wherein the first rack (541) is formed on an inner wall surface of the door surface (50a), and the door driving mechanism is extendable to the inner wall surface of the door surface (50a) and engaged with the first rack (541).

7. The heating cooker according to claim 4, wherein the door driving mechanism includes:

and the upper end of the door body driving motor (59) is provided with a door body driving gear (60), and the first rack (541) is meshed with the door body driving gear (60) to enable the door surface (50a) to rotate under the driving of the door body driving motor (59).

8. The heating cooker according to claim 1, wherein the lower fixed rail (55) is provided with a lower groove (552) in which the lower movable rail (54) slides.

9. The heating cooker according to claim 1, wherein the lower movable rail (54) is formed with an annular groove (546), and the door face (50a) is inserted in the groove (546).

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