CN113568297B

CN113568297B - Timing device for air fryer

Info

Publication number: CN113568297B
Application number: CN202110802701.7A
Authority: CN
Inventors: 王云岗; 董禄友
Original assignee: Shandong Shengning Electric Appliance Co ltd
Current assignee: Shandong Shengning Electric Appliance Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-09-06
Anticipated expiration: 2041-07-15
Also published as: CN113568297A

Abstract

The invention discloses a timing device for an air fryer, which has the following structure: the shell is provided with an inner cavity, the upper end of the inner cavity is opened, the inner cavity is semicircular, and the center of the bottom surface of the inner cavity protrudes upwards to form an arc convex surface. The panel is connected to the upper port of the shell in a sealing way; the potentiometer is fixed on the panel and is positioned in the inner cavity of the shell. The timing knob is connected on the top surface of the potentiometer, and the timing knob is positioned outside the panel. The back bell is connected to the bottom surface of the potentiometer and has a hammer therein driven by an escapement mechanism in the potentiometer. The side wall of the potentiometer and the outer wall of the back bell are both arc-shaped structures and form a semicircular outer wall, the semicircular outer wall and the inner cavity surface of the shell form a reflection channel, and the semicircular outer wall surface and the inner cavity surface are both in a smooth state. The timing device of the invention not only can improve the sound, but also can reduce the vibration transmitted by the timer to the outside, and reduce the problem that the timer is easy to cause the falling off or the damage of the timer and other components after long-term use.

Description

Timing device for air fryer

Technical Field

The invention relates to the technical field of air fryer, in particular to a timing device for an air fryer.

Background

An air fryer is a machine capable of frying by using air, and is characterized by that it utilizes the heat pipe in the high-temp heating machine to produce hot air, then uses a fan to blow the high-temp air into the interior of said fryer to heat food, and makes the hot air circulate in the closed space, and utilizes the oil and fat of the food to fry the food so as to dehydrate the food, and make its surface become golden and crisp, so that it can obtain the effect of frying. When the air fryer is used for frying food, the frying time needs to be set, and the timer is just a main device for realizing the purpose, and the timer makes a sound to remind after the set time is reached. At present, because the back bell in the timer on the air fryer is buried in the timer, the sound is less, and the problem that the sound cannot be effectively reminded exists under the condition that some external noises are larger, in addition, components such as a hammering piece (used for knocking the back bell to produce sound) in the timer have larger vibration during operation, and the vibration is transmitted to other components in the air fryer, so that the back bell easily falls off or is damaged in the past, and the service life of the air fryer is influenced.

Disclosure of Invention

In view of the above problems, the present invention provides a timing device for an air fryer, which not only can improve the sound emitted, but also can reduce the vibration transmitted from a timer to the outside of the timer, and is helpful for reducing the problem that the timer is easy to fall off or damage other components after long-term use. In order to achieve the above object, the technical solution of the present invention is as follows.

A timing device for an air fryer comprising: shell, panel, potentiometre, timing knob and back bell, wherein: the shell is provided with an inner cavity and an upper end opening, the inner cavity is semicircular, and the center of the bottom surface of the inner cavity protrudes upwards to form an arc-shaped convex surface. The panel is hermetically connected to the upper port of the shell; the potentiometer is fixed on the panel and is positioned in the inner cavity of the shell. The timing knob is connected on the top surface of the potentiometer, is located outside the panel, is provided with time scales, and is provided with a time indication mark. The back bell is connected to the bottom surface of the potentiometer, and the hammer driven by an escapement mechanism in the potentiometer is arranged in the back bell, so that the back bell can be struck to sound after the set time is reached. The side wall of the potentiometer and the outer wall of the back bell are both arc-shaped structures and form a semicircular outer wall, the semicircular outer wall and the inner cavity surface of the shell form an arc-shaped reflection channel, and the semicircular outer wall surface and the inner cavity surface are both in a smooth state.

Furthermore, the position of the panel corresponding to the reflection channel is provided with a sounding hole, so that the sound of the back bell can be better transmitted.

Furthermore, the surfaces of the semicircular outer wall and the inner cavity of the shell are both provided with a layer of aluminizer, so that a smooth reflecting layer is formed, and the sound emitted by the back bell can be reflected conveniently.

Furthermore, the shell of the back bell is of a spherical crown structure, and the side wall of the outer shell of the potentiometer and the shell of the back bell of the spherical crown structure form a semicircular outer wall so as to be adapted to the inner cavity structure of the outer shell and form a reflection channel with the same width at each position.

Furthermore, the shell is made of stainless steel, has high surface hardness, can effectively reduce vibration caused by sound waves, is favorable for reducing the attenuation of the sound waves in the transmission process, and is convenient for reflecting the sound emitted by the back bell.

Furthermore, the shock absorption device further comprises a shock absorption shell and a cover body, the upper part of the outer wall of the shell protrudes outwards to form a step, and a vertical first shock absorption part is fixed on the step. The bottom surface of the damping shell is fixedly provided with a vertical second damping part, the shell is supported on the second damping part, the cover body is fastened on the upper port of the damping shell, the top end of the first damping part is abutted against the lower surface of the cover body, and the upper part of the shell is positioned outside the cover body after passing through the cover body.

Furthermore, the cover body is of an annular plate-shaped structure, a through hole is formed in the plate surface of the cover body, the through hole can enable the part above the step of the shell to pass through but cannot enable the step to pass through, and therefore the step on the shell is restrained in the shock absorption shell.

Furthermore, the first damping part and the second damping part are metal springs, so that the metal springs have the functions of buffering and damping, and can bear the high-temperature environment of the air fryer.

Furthermore, a connecting hole is formed in the cover body, and the fixing bolt is in threaded connection with the upper end face of the damping shell after passing through the connecting hole, so that the cover body is fastened on the damping shell.

Furthermore, the outer surfaces of the outer shell and the shock absorption shell are respectively provided with a layer of heat insulation layer so as to protect components such as a potentiometer and the like.

Compared with the prior art, the invention has the following beneficial effects:

(1) the inner cavity of the shell is of a semicircular structure, and furthermore, the side wall of the shell of the potentiometer and the shell of the back bell of the spherical crown structure form a semicircular outer wall which can form an arc-shaped reflection channel with the surface of the inner cavity of the shell. When the back bell makes a sound, the sound waves are reflected in the reflecting channel in order and intensively, so that the loss caused by scattering and mutual offset of the sound waves in the shell with the common shape is avoided, and the sound loss is larger due to the blocking of the sound waves caused by the fact that the back bell is positioned in the shell of the air fryer. In addition, the shell made of stainless steel has high surface hardness, vibration caused by sound waves can be effectively reduced, weakening of the sound waves in the transmission process is reduced, and sound emitted by the back bell is reflected better.

(2) The timing device provided with the damping shell and restrained in the damping shell by the step on the cover body shell can reduce the problem that the timing device and other components in the air fryer shell are easy to fall off or be damaged due to high-frequency vibration caused by a hammer piece and other parts on a potentiometer during working in the using process, because the timing device is suspended in the damping shell through the first damping part and the second damping part and is mainly contacted with other parts through the damping part, so that the vibration transmission is reduced to the maximum extent through the damping part.

(3) In addition, since the tip end of the first damping member abuts against the lower surface of the cover body, that is, the first damping member is in a compressed state, and further the second damping member is in a compressed state, the pre-pressure is generated, and when the timing device vibrates, the pre-pressure can offset the vibration force, thereby further reducing the transmission of the vibration.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic diagram of a timing device for an air fryer in accordance with an embodiment of the present invention.

FIG. 2 is a top view of a timing device for an air fryer in an embodiment of the present invention.

FIG. 3 is a schematic diagram of a timing device for an air fryer in accordance with another embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a cover body in an embodiment of the invention.

The symbols in the figures represent: 1-shell, 2-panel, 3-potentiometer, 4-timing knob, 5-back bell, 6-arc convex surface, 7-reflection channel, 8-sounding hole, 9-damping shell, 10-cover body, 11-step, 12-first damping part, 13-second damping part, 14-through hole and 15-connecting hole.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

In the description of the present invention, the terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings, and not for structural limitations, but merely for convenience in describing the invention, and do not indicate or imply that the referenced devices or elements need to have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention. The technical scheme of the invention is further explained by combining the drawings and the embodiment of the specification.

Referring to fig. 1 and 2, there is illustrated a timing device for an air fryer, which basically comprises: shell 1, panel 2, potentiometre 3, timing knob 4 and back bell 5, wherein:

the shell 1 is made of stainless steel, the shell 1 is cylindrical, the shell is provided with a semicircular inner cavity, an upper port of the shell is in an opening shape, and the center of the bottom surface of the inner cavity protrudes upwards to form an arc-shaped convex surface 6. The outer surface of the shell 1 is provided with a layer of heat insulation layer to protect components such as the potentiometer 3 and the like.

The panel 2 is a circular plate-shaped structure and is fastened on an upper port of the shell 1 through bolts, so that water, dust, food residues and the like are prevented from entering an inner cavity of the shell 1 and damaging the potentiometer 3 in the inner cavity, specifically, the potentiometer 3 is vertically fixed on the inner surface of the panel 2, a gear shaft of the potentiometer 3 penetrates through a hole in the panel 2 and then is connected with the timing knob 4, the timing knob 4 is located outside the panel 2, time scales are arranged on the panel 2, and the timing knob 4 is provided with a time indication mark. The setting of different time can be selected and set by rotating the timing knob 4, the main function of the potentiometer 3 is to realize the timing striking of the back bell 5 according to the setting of the timing knob 4 so as to remind the user of the air fryer, and specifically, the structure of the potentiometer 3 can be directly referred to the existing mechanical timer and other devices.

The back bell 5 is connected to the bottom surface of the potentiometer 3 and the back bell 5 has a hammer driven by an escapement in the potentiometer 3 to strike the back bell 5 to sound after a set time has been reached. The shell of the back bell 5 is of a spherical crown structure, the side wall of the outer shell of the potentiometer 3 and the shell of the back bell of the spherical crown structure form a semicircular outer wall so as to be matched with the inner cavity structure of the outer shell 1, the semicircular outer wall and the inner cavity surface of the outer shell 1 form a reflection channel 7, and the surfaces of the semicircular outer wall and the inner cavity are polished surfaces. In addition, the surfaces of the semicircular outer wall and the inner cavity of the shell 1 are both provided with an aluminizer, so that a smooth reflecting layer is formed, the sound emitted by the back bell 5 can be reflected, and the user can be better reminded.

With reference to fig. 2, in other embodiments, a sound emitting hole 8 is disposed at a position of the panel 2 corresponding to the reflection channel 7, sound emitted by the back bell 5 is reflected by the arc-shaped convex surface 6 and the reflection channel 7 and then can be transmitted to the outside of the air fryer through the sound emitting hole 8, and the arrangement of the through hole helps to reduce obstruction of sound waves, so that the sound transmitted by the back bell 5 is increased, and particularly, when external noise is high, a user can be better reminded.

The timing device for the air fryer has the following characteristics: the inner cavity of the shell 1 is firstly arranged into a semicircular structure, and further, the side wall of the shell of the potentiometer 3 and the shell of the back bell 5 with a spherical crown structure form a semicircular outer wall which can form an arc-shaped reflecting channel 7 with the surface of the inner cavity of the shell 1. When the back bell 5 makes a sound, the sound waves are reflected in the reflecting channel 7 in order and intensively, so that the loss caused by the scattering and mutual cancellation of the sound waves in a shell with a common shape is avoided, and the sound loss is larger due to the blocking of the sound waves caused by the back bell positioned in the shell of the air fryer. In addition, the shell 1 made of stainless steel has high surface hardness, vibration caused by sound waves can be effectively reduced, attenuation of the sound waves in the transmission process in the reflection channel 7 is reduced, and sound emitted by the back bell 5 is reflected better.

Referring to fig. 3 and 4, further, the timing device for an air fryer in the above embodiment further includes a shock-absorbing housing 9 and a cover 10, and an upper portion of an outer wall of the outer casing 1 is protruded outward to form a step 11, and a vertical first shock-absorbing member 12 is fixed to the step 1. A vertical second damping part 13 is fixed on the bottom surface of the damping shell 9, the housing 1 is supported on the second damping part 13, the cover 10 is fastened on the upper port of the damping shell 9, the top end of the first damping part 12 abuts against the lower surface of the cover 10, the cover 10 is of an annular plate-shaped structure, a through hole 14 is formed in the plate surface of the cover 10, the through hole 14 can enable the part above the step 11 of the housing 1 to pass through, but cannot enable the step 11 to pass through, so that the step 11 on the housing 1 is restrained in the damping shell 9. The first damping part 12 and the second damping part 13 are metal springs, which not only have the function of buffering and damping, but also can bear the high-temperature environment of the air fryer. The cover body 10 is provided with a connecting hole 15, and a fixing bolt is in threaded connection with the upper end surface of the shock absorption shell 9 after passing through the connecting hole 15, so that the cover body 10 is fastened on the shock absorption shell 9. And a heat insulation layer is arranged on the outer surface of the shock absorption shell 9 to protect the potentiometer 3 and other components.

The timing device having the damper housing 9 and constrained in the damper housing 9 by the step 11 on the housing 1 of the cover 10 can reduce the problem that the timing device itself and other components in the air fryer housing are easily detached or damaged due to high-frequency vibration caused by the components such as the hammer on the potentiometer and the like during operation, because the timing device is suspended in the damper housing 9 by the first damper member 12 and the second damper member 13, and the timing device is mainly in contact with other components through the damper members, so that the transmission of vibration is reduced most significantly through the damper members. In addition, since the top end of the first shock absorbing member 12 abuts on the lower surface of the cover 10, that is, the first shock absorbing member 12 is in a compressed state, and further the second shock absorbing member 13 is in a compressed state, a pre-pressure is generated, and when the timing device vibrates, the pre-pressure can counteract the vibration force, thereby further reducing the transmission of the vibration.

Finally, it should be understood that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. A timing device for an air fryer comprising:

the shell is provided with an inner cavity, the upper end of the outer shell is opened, the inner cavity is semicircular, and the center of the bottom surface of the inner cavity protrudes upwards to form an arc convex surface;

the panel is connected to the upper port of the shell in a sealing mode, and time scales are arranged on the panel;

the potentiometer is fixed on the panel and is positioned in the inner cavity of the shell;

the timing knob is connected to the top surface of the potentiometer, is positioned outside the panel and is provided with a time indication mark;

a back bell connected to the bottom surface of the potentiometer and having a hammer member therein driven by an escapement mechanism in the potentiometer;

the side wall of the potentiometer and the outer wall of the back bell are both arc-shaped structures, and the side wall and the outer wall form a semicircular outer wall;

the semicircular outer wall and the inner cavity surface of the shell form an arc-shaped reflection channel, and the semicircular outer wall surface and the inner cavity surface are both in a smooth state;

the damping device further comprises a damping shell and a cover body, wherein the upper part of the outer wall of the shell protrudes outwards to form a step, and a vertical first damping part is fixed on the step; the bottom surface of the damping shell is fixedly provided with a vertical second damping part, the shell is supported on the second damping part, the cover body is fastened on the upper port of the damping shell, the top end of the first damping part is abutted against the lower surface of the cover body, and the upper part of the shell is positioned outside the cover body after passing through the cover body.

2. A timing device for an air fryer according to claim 1 wherein said panel is provided with sound emitting holes at locations corresponding to said reflective channels.

3. A timing device for an air fryer according to claim 1, wherein the semi-circular outer wall and the inner cavity surface of the outer shell are both provided with an aluminized coating to provide a smooth reflective coating.

4. A timing device for an air fryer according to claim 1, wherein the back bell housing is of a spherical crown configuration and the potentiometer housing sidewall and the back bell housing of the spherical crown configuration form a semi-circular outer wall.

5. A timing device for an air fryer according to claim 1, wherein the material of said housing is stainless steel.

6. A timing device for an air fryer according to claim 5, wherein an insulating layer is provided on the outer surface of the outer shell.

7. A timing device for an air fryer according to claim 1, wherein the cover is an annular plate-like structure having a through hole formed in a plate surface thereof, the through hole being capable of passing a portion of the casing above the step but not the step, thereby restraining the step in the casing in the damper housing.

8. The timing device for an air fryer according to claim 1, wherein the first and second dampening members are metal springs.

9. The timing device for an air fryer according to claim 1, wherein the cover body is provided with a coupling hole through which a fixing bolt is threadedly coupled to the upper end surface of the damper housing, thereby fastening the cover body to the damper housing.

10. A timing device for an air fryer according to claim 1, wherein an insulating layer is provided on the outer surface of the shock absorbing shell.