Support for stove turntable

Abstract

A support for a stove rotary table comprises a connecting frame, a plurality of wheel seats are evenly distributed on the connecting frame, an opening in the upper end of each wheel seat is downwards and inwards concavely provided with a containing cavity, an inner mounting groove is formed in the side wall, close to the center of the connecting frame, of each containing cavity, and an outer mounting groove is formed in the side wall, away from the center of the connecting frame, of each containing cavity; the outer end of the roller extends outwards to form an outer wheel shaft, the inner end of the roller extends inwards to form an inner wheel shaft, and the diameter of the inner wheel shaft is smaller than that of the outer wheel shaft; the inner wheel shaft is rotatably mounted in the inner mounting groove, and the outer wheel shaft is rotatably mounted in the outer mounting groove; and after the roller is mounted in the accommodating cavity, the outer circular surface of the roller protrudes out of the upper end surface of the roller seat. The utility model has the beneficial effects that the roller only rotates on the connecting frame, and the turntable rolls on the roller. The design avoids direct contact and rolling between the roller and the paint spraying surface at the bottom of the microwave oven, so that the abrasion of the roller to the paint surface is eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a microwave oven accessory, concretely is a support for stove turntable. BACKGROUND

[0002] As a common cooking device in modern kitchens, the turntable system inside the microwave oven plays a crucial role in ensuring uniform heating of food. The turntable system is typically composed of a turntable and a support bracket that holds the turntable. The rollers on the support bracket are the key components that enable the smooth rotation of the turntable. In existing technology, the design of the microwave oven turntable support generally adopts a simple approach, where the rollers on the support bracket directly roll on the bottom of the microwave oven. The bottom of the microwave oven is usually treated with a paint spraying process to consider both aesthetics and basic rust prevention. However, this design has exposed several significant defects in actual use, which not only affect the service life and performance of the microwave oven, but also negatively impact user experience.

[0003] In the existing design of the microwave oven turntable support, the support bracket is usually composed of a connecting frame and several rollers, which directly contact and roll on the painted surface of the microwave oven bottom. This simple design is widely used in household microwaves due to its low manufacturing cost. The microwave oven bottom is treated with a paint spraying process to improve the flatness and aesthetics of the appearance, and to prevent oxidation and corrosion of the metal material to some extent. However, long-term use of this structure has exposed some problems that cannot be ignored.

[0004] Since the rollers directly roll on the painted surface of the microwave oven bottom, the continuous friction and pressure between the rollers and the paint surface inevitably cause wear to the paint surface. After a long period of use, the painted surface will gradually peel off. Once the paint peels off, the metal material at the bottom will be directly exposed to the air, especially in the humid environment inside the microwave oven, the metal will easily rust. Rust not only damages the appearance of the microwave oven, but also weakens the structural strength of the metal, which in turn affects the overall stability and safety of the microwave oven. For example, the rusted metal may experience localized corrosion, resulting in a weak structure, and even affecting the normal operation of the microwave oven in extreme cases.

[0005] During the use of the microwave oven, food residue, oil stains, and other debris can easily fall to the bottom of the microwave oven and may enter the rolling path of the rollers. The presence of these debris can hinder the normal rolling of the rollers, causing the rollers to jam during rotation. Roller jamming not only makes the rotation of the turntable unstable, which in turn affects the uniformity of food heating, but also can cause the turntable system to emit abnormal noise, significantly reducing user experience. In addition, long-term jamming can accelerate the wear of the rollers and the support bracket, further shortening the service life of the microwave oven, so it is necessary to make further improvements. SUMMARY

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a turntable support for a microwave oven that is simple in structure, easy to use, can effectively prevent the rollers from directly abrading the paint on the bottom of the microwave oven, and reduces the impact of debris on the rollers' rolling, thereby improving the overall performance and service life of the microwave oven.

[0007] The purpose of this utility model is achieved by the following means: a stove turntable support, which includes a connecting frame, a plurality of wheel seats are evenly distributed on the connecting frame, and the upper end of the wheel seat is provided with a receiving cavity with an opening facing downward and recessed. An inner mounting groove is provided on the side wall of the receiving cavity near the center of the connecting frame, and an outer mounting groove is provided on the side wall away from the center of the connecting frame.

[0008] It also includes a roller, with an outer axle extending outward from the outer end of the roller and an inner axle extending inward from the inner end of the roller, wherein the diameter of the inner axle is smaller than the diameter of the outer axle;

[0009] The inner wheel axle is rotatably installed in the inner mounting groove, and the outer wheel axle is rotatably installed in the outer mounting groove;

[0010] After the roller is installed in the accommodating cavity, the outer circular surface of the roller protrudes from the upper end surface of the wheel seat.

[0011] Furthermore, an inner limiting shaft is provided at one end of the inner wheel shaft near the roller, and an outer limiting shaft is provided at one end of the outer wheel shaft near the roller. After the roller is installed in the accommodating cavity, the inner and outer limiting shafts contact the two side walls of the accommodating cavity to limit the axial displacement of the roller.

[0012] Furthermore, an undercut seat extends obliquely downward from the upper opening of the accommodating cavity. After the roller is installed in the accommodating cavity, the undercut seat contacts the outer circle of the inner limiting shaft and the outer limiting shaft, thereby limiting the disengagement of the roller.

[0013] Furthermore, four inverted mounting seats are provided, symmetrically distributed on both sides of the inner mounting groove and the outer mounting groove.

[0014] Furthermore, the bottom of the wheel seat extends downward to form a support base, which is distributed at both ends of the wheel seat and located near the connecting frame.

[0015] Furthermore, a reinforcing rib is provided on the side of the support base near the connecting frame, and the reinforcing rib connects the support base and the connecting frame.

[0016] Furthermore: the connecting frame is arranged in a ring, and at least three wheel seats are provided, evenly distributed on the connecting frame.

[0017] Furthermore: the connecting frame is arranged in a triangular shape, and at least three wheel seats are provided, evenly distributed at the included angle of the connecting frame.

[0018] The utility model discloses the beneficial effect is: 1, simple structure, low in production cost, improve market competitiveness.

[0019] 2, because set up the support seat, the gyro wheel movement and the furnace bottom do not produce contact. Compared with, the traditional design gyro wheel directly rolls in the microwave oven bottom, and the utility model discloses, gyro wheel only rotates on the connecting frame, and the rotating disc rolls on the gyro wheel. This design avoids the direct contact and rolling pressure of gyro wheel and the paint surface of microwave oven bottom, thereby eliminating the wear and tear of gyro wheel to the paint surface. The paint can keep intact, and the bottom metal material will not be exposed to the humid environment, effectively prevent the occurrence of rust phenomenon, significantly prolong the service life of microwave oven and strengthen the aesthetic property.

[0020] 3, the utility model discloses the linear velocity difference of inner wheel shaft and outer wheel shaft, generates the differentiating friction in the installation groove. This friction difference can effectively offset the circumferential shear stress generated by the rotation of the rotating disc, so that the stress of the gyro wheel is more balanced, thereby significantly improving the stability of the rotating disc rotation.

[0021] 4, the gyro wheel is installed in the containing cavity of the wheel seat, and is fixed through the inner installation groove and the outer installation groove. This design makes the gyro wheel part be surrounded by the wheel seat, compared with the traditional design that the gyro wheel is directly exposed to the bottom of the microwave oven, can reduce the opportunity of food residues, oil stains and other sundries entering the gyro wheel path, further improves the reliability of the rotating disc system.

[0022] 5, the design of the inverted seat and the limiting shaft makes the gyro wheel not easy to fall out and the rolling effect is good, and can still keep the initial use state after long-time use. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 、 2 It is the structure schematic diagram of the first embodiment of the utility model.

[0024] Figure 3 It is the exploded view of the first embodiment structure of the utility model.

[0025] Figure 4 It is the enlarged view of A part structure in the utility model. Figure 2

[0026] Figure 5 It is the enlarged view of B part structure in the utility model. Figure 3

[0027] Figure 6 It is the structure section view of the utility model.

[0028] Figure 7 It is the structure schematic diagram of the second embodiment of the utility model. DETAILED DESCRIPTION​​

[0029] The utility model makes further specific illustration in combination with the drawings. A kind of furnace rotary table support, it includes connecting frame 1, the connecting frame 1 is evenly distributed with several wheel seat 2, the wheel seat 2 upper end opening is inwardly recessed and is provided with accommodating cavity 3, the accommodating cavity 3 is close to the side wall of the center of connecting frame 1 and is provided with inner installation groove 4, and the side wall away from the center of connecting frame 1 is provided with outer installation groove 5;

[0030] It further includes roller 6, the outer end of roller 6 extends outwardly and has outer wheel shaft 61, the inner end of roller 6 extends inwardly and has inner wheel shaft 62, the diameter of the inner wheel shaft 62 is less than the diameter of outer wheel shaft 61;

[0031] The inner wheel shaft 62 is rotatably installed in inner installation groove 4, and outer wheel shaft 61 is rotatably installed in outer installation groove 5;

[0032] After the roller 6 is installed in the accommodating cavity 3, the outer circumferential surface of the roller 6 protrudes from the upper end surface of the wheel seat 2.

[0033] In one embodiment, the inner wheel shaft 62 is further provided with an inner limiting shaft 63 close to one end of the roller 6, the outer wheel shaft 61 is further provided with an outer limiting shaft 64 close to one end of the roller 6, and after the roller 6 is installed in the accommodating cavity 3, the inner limiting shaft 63 and the outer limiting shaft 64 are in contact with the two side walls of the accommodating cavity 3 to limit the axial displacement of the roller 6.

[0034] In one embodiment, the upper opening of the accommodating cavity 3 extends downwardly and obliquely to have a reverse buckle 7, and after the roller 6 is installed in the accommodating cavity 3, the reverse buckle 7 is in contact with the outer circle of the inner limiting shaft 63 and the outer limiting shaft 64 to limit the dislocation of the roller 6.

[0035] In one embodiment, the reverse buckle 7 is provided with four, and is symmetrically distributed on the two sides of the inner installation groove 4 and the outer installation groove 5.

[0036] In one embodiment, the bottom of the wheel seat 2 extends downwardly to have a support seat 8, the support seat 8 is distributed on the two ends of the wheel seat 2 and is close to the connecting frame 1.

[0037] In one embodiment, the support seat 8 is provided with a reinforcing rib 81 close to one side of the connecting frame 1, and the reinforcing rib 81 connects the support seat 8 and the connecting frame 1.

[0038] As shown in Figures 1-3 In one embodiment, the connecting frame 1 is annularly arranged, and the wheel seat 2 is provided with at least three, which are evenly distributed on the connecting frame 1.

[0039] As shown in Figure 7As shown, in one embodiment, the connecting frame 1 is triangularly arranged, and the wheel seats 2 are arranged at least three, evenly distributed at the corners of the connecting frame 1.

[0040] Working principle: In this case, the core structure of the microwave oven turntable support includes connecting frame 1, wheel seat 2, accommodating cavity 3, inner mounting groove 4, outer mounting groove 5 and roller 6. The connecting frame 1 is the main body of the support, and a plurality of wheel seats 2 are evenly distributed thereon. The upper end of each wheel seat 2 is downwardly recessed to form an accommodating cavity 3 for accommodating the roller 6. The side wall close to the center of the connecting frame 1 is provided with an inner mounting groove 4, and the side wall away from the center of the connecting frame 1 is provided with an outer mounting groove 5. The outer end of the roller 6 extends outwardly with an outer wheel shaft 61, and the inner end extends inwardly with an inner wheel shaft 62, and the diameter of the inner wheel shaft 62 is smaller than that of the outer wheel shaft 61. The inner wheel shaft 62 and the outer wheel shaft 61 are rotatably installed in the inner mounting groove 4 and the outer mounting groove 5, respectively. After the roller 6 is installed, the outer circular surface thereof protrudes from the upper end surface of the wheel seat 2, directly supporting the bottom of the microwave oven turntable.

[0041] When the microwave oven turntable is placed on the support, the bottom of the turntable is in contact with the outer circular surface of the roller 6. When the turntable rotates under the drive of the motor, the roller 6 is driven to rotate in the inner mounting groove 4 and the outer mounting groove 5 of the accommodating cavity 3 by friction. The rotation of the roller 6 enables the turntable to rotate smoothly, thereby ensuring that the food in the microwave oven is uniformly heated. Unlike the conventional design, the roller 6 of the present application is installed on the connecting frame 1, and the connecting frame 1 remains stationary, only the roller 6 rotates on the connecting frame 1, and the turntable rolls on the roller 6.

[0042] In the conventional design, the roller directly rolls on the paint surface on the bottom of the microwave oven, and long-time friction causes the paint to fall off and the metal to rust. In the present application, the roller 6 has no direct contact with the bottom of the microwave oven, avoiding the rolling pressure of the roller on the paint surface, fundamentally eliminating the problem of paint falling off, and prolonging the service life of the microwave oven.

[0043] Further, in this application, the inner wheel shaft 62 and the outer wheel shaft 61 of the roller 6 are designed with different diameters, which plays a key role when the turntable rotates.

[0044] Specifically, when the turntable rotates, the roller 6 is driven to rotate by friction. Since the inner wheel shaft 62 and the outer wheel shaft 61 belong to a rigid roller, they rotate at the same angular velocity. However, since the diameter of the inner wheel shaft 62 is smaller than that of the outer wheel shaft 61, according to the formula V=W*R, where V is the linear velocity, W is the angular velocity, and R is the radius, the linear velocity of the outer wheel shaft 61 is greater than that of the inner wheel shaft 62. This difference in linear velocity generates differential friction in the mounting groove, effectively counteracting the circumferential shear stress along the tangential force generated when the turntable rotates, making the roller more balanced in force.

[0045] Therefore, compared with the conventional technology, in the case, the tangential shear stress is offset by the linear speed difference, the turntable is more stable during rotation, and the shaking or deviation caused by the shear stress is avoided. This not only improves the heating uniformity, but also improves the user experience.

[0046] In addition, in the case, the inner wheel shaft 62 is provided with an inner limiting shaft 63 near one end of the roller 6, and the outer wheel shaft 61 is provided with an outer limiting shaft 64 near one end of the roller 6. After the roller 6 is installed in the accommodating cavity 3, the inner limiting shaft 63 and the outer limiting shaft 64 are in contact with the two side walls of the accommodating cavity 3, preventing the roller 6 from moving axially left and right during rotation. The upper opening of the accommodating cavity 3 extends downward and obliquely to the inverted seat 7. After the roller 6 is installed, the inverted seat 7 is in contact with the outer circle of the inner limiting shaft 63 and the outer limiting shaft 64, limiting the radial up and down displacement of the roller 6.

[0047] Through the double limiting of the axis and the radius, the roller 6 will not deviate or jump during rotation, ensuring the stability and reliability of the rotation of the turntable. This design effectively avoids the jamming problem caused by the displacement of the roller in the traditional support.

[0048] In addition, in the case, the wheel seat 2 extends downward from the bottom, and is distributed at one end of the wheel seat 2 near and away from the center of the connecting frame, enhancing the support force of the wheel seat 2 and ensuring its stability when bearing the weight of the turntable. At the same time, the support seat 8 is arranged near the connecting frame 1, connecting the support seat 8 and the connecting frame 1, improving the rigidity and stability of the overall structure. The design of the support seat 8 and the reinforcing rib 81 enables the support to withstand greater load, prolonging the service life of the support, especially in long-term use or heavy load conditions, the structural integrity is still maintained.

[0049] As shown in Figures 1-3 The connecting frame 1 in the case is annular, and at least three wheel seats 2 are arranged uniformly on the connecting frame 1, providing stable support points to ensure uniform stress on the turntable during rotation.

[0050] In addition, as shown in Figure 7 The connecting frame 1 is triangular, and the wheel seats 2 are distributed at the angles of the triangle, also achieving uniform support, suitable for microwave ovens with different design requirements. Whether annular or triangular design, the uniform distribution of the wheel seats 2 ensures the balance of the support, so that the turntable does not tilt or become unstable during rotation, improving the reliability and adaptability of the system.

[0051] In summary, the roller 6 is rotatably mounted in the wheel seat 2 of the connecting frame 1 by the inner wheel shaft 62 and the outer wheel shaft 61, supports the rotating disc and realizes stable rotation of the rotating disc. The connecting frame 1 remains stationary, avoiding direct rolling of the roller on the bottom of the microwave oven, thereby preventing paint peeling and metal rusting. At the same time, the difference in diameters of the inner wheel shaft 62 and the outer wheel shaft 61 generates a linear velocity difference, offsetting the circumferential shear stress and improving the stability of the rotating disc rotation. The inner limiting shaft 63, the outer limiting shaft 64 and the reverse buckle seat 7 ensure the axial and radial stability of the roller, the support seat 8 and the reinforcing rib 81 enhance the structural strength, the shape design of the connecting frame guarantees the overall balance, so it can be widely used.

[0052] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A support for a stove turntable, characterized in that: It include the connecting frame (1), the connecting frame (1) evenly distributed with several wheel seats (2), the wheel seat (2) upper end opening is provided with the accommodation cavity (3) to the inside concave, the accommodation cavity (3) is close to the side wall of the center of connecting frame (1) and is provided with the inner installation slot (4), and the side wall away from the center of connecting frame (1) is provided with the outer installation slot (5). It also includes a roller (6), the outer end of the roller (6) extends outwardly with an outer axle (61), and the inner end of the roller (6) extends inwardly with an inner axle (62), wherein the diameter of the inner axle (62) is smaller than the diameter of the outer axle (61). The inner axle (62) is rotatably installed in the inner installation slot (4), and the outer axle (61) is rotatably installed in the outer installation slot (5). After the roller (6) is installed in the accommodation cavity (3), the outer circular surface of the roller (6) protrudes from the upper end surface of the wheel seat (2).

2. A support for a stove turntable according to claim 1, characterised in that: The inner end of the inner axle (62) close to the roller (6) is further provided with an inner limiting shaft (63), and the inner end of the outer axle (61) close to the roller (6) is further provided with an outer limiting shaft (64), wherein, after the roller (6) is installed in the accommodation cavity (3), the inner limiting shaft (63) and the outer limiting shaft (64) are in contact with the two side walls of the accommodation cavity (3), thereby limiting the axial displacement of the roller (6).

3. A support for a stove turntable according to claim 2, characterised in that: The upper opening of the accommodation cavity (3) extends downwardly and obliquely with a reverse buckle seat (7), wherein, after the roller (6) is installed in the accommodation cavity (3), the reverse buckle seat (7) is in contact with the outer circular surface of the inner limiting shaft (63) and the outer limiting shaft (64), thereby limiting the radial displacement of the roller (6).

4. A support for a stove turntable according to claim 3, characterised in that: The reverse buckle seat (7) is provided with four, which are symmetrically distributed on the two sides of the inner installation slot (4) and the outer installation slot (5).

5. A support for a stove turntable according to claim 1, characterized in that: The bottom of the wheel seat (2) extends downwardly with a support seat (8), wherein the support seat (8) is distributed on the two ends of the wheel seat (2) and is close to the connecting frame (1).

6. A support for a stove turntable according to claim 5, characterised in that: The side of the support seat (8) close to the connecting frame (1) is provided with a reinforcing rib (81), and the reinforcing rib (81) connects the support seat (8) and the connecting frame (1).

7. A support for a rotisserie according to claim 1 wherein: The connecting frame (1) is annularly arranged, and the wheel seat (2) is provided with at least three, which are evenly distributed on the connecting frame (1).

8. A stand for a stove turntable according to claim 1, characterized in that: The connecting frame (1) is triangularly arranged, and the wheel seat (2) is provided with at least three, which are evenly distributed at the included angle of the connecting frame (1).

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