CN214104191U

CN214104191U - Air oven with double doors

Info

Publication number: CN214104191U
Application number: CN202021704902.0U
Authority: CN
Inventors: 程晓
Original assignee: Foshan Shunde Kufu Electrical Appliance Co ltd
Current assignee: Foshan Shunde Kufu Electrical Appliance Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-09-03
Anticipated expiration: 2030-08-14

Abstract

The utility model provides a two air ovens that open door, which comprises a housin, two oven doors and two spring application of force-return link gear, two spring application of force-return link gear include the gyration dish, first connecting rod, the second connecting rod, application of force spring and return force spring, wherein the gyration dish rotationally sets up in the bottom of casing, first connecting rod respectively with the gyration dish, one of them oven door is articulated, the second connecting rod respectively with the gyration dish, another oven door is articulated, application of force spring respectively with the casing, first connecting rod is connected, return force spring respectively with the casing, the second connecting rod is connected, two oven doors are through first connecting rod, the synchronous switching of linkage realization of second connecting rod. The utility model discloses spacing at the biggest angular position that opens the door with two oven doors through force application spring when opening the door, when closing the door through return spring with force application spring with the taut closed front opening part at the casing of two oven doors, have that the linkage process is smooth and easy, advantage that stability is good, promote user's experience and feel.

Description

Air oven with double doors

Technical Field

The utility model relates to a domestic cooking equipment, concretely relates to adopt two spring application of force-return force linkage in order to carry out the air oven of two doors of opening and close in step.

Background

Oven among the prior art adopts the structure of singly opening the door more, generally adopts under to open or the side is opened and is carried out opening or closing of a body, and the structure of singly opening the door generally need take off the body, and the opening and closing range of the body is big, occupies great oven space.

In view of the above problems, the oven with the double door structure is currently provided on the market, however, the conventional double door structure needs to open the left and right door bodies respectively, and the two door bodies cannot be synchronized with each other, and when a user needs to perform a one-handed operation (for example, when there is food in the other hand), the double door structure becomes very inconvenient. Therefore, a double-door linkage structure is needed to solve the problem of synchronous opening or closing of double doors.

Chinese patent 201821906961.9 discloses a double door oven and a linkage structure that opens door of the double door oven, it includes: the left box door is arranged on the oven shell and is hinged with one end of the left pull arm; the right box door is arranged on the oven shell and is hinged with one end of the right pull arm; the guide seat is arranged on the oven liner; one end of the left pull arm, which is far away from the left box door, is hinged with one end of the right pull arm, which is far away from the right box door, so as to form a hinge joint; the hinge joint is located in the guide seat and moves back and forth along the length direction of the guide seat, so that the left box door and the right box door can be opened and closed synchronously.

However, in the prior art, the double-door structure is not smooth enough in linkage between the two oven doors, and the opening and closing processes of the two oven doors are required to be completed by manpower, and when the two oven doors are opened at the maximum angle position, the two oven doors are easy to shake, so that the user experience is poor.

SUMMERY OF THE UTILITY MODEL

To prior art's defect, the utility model provides a two air ovens that open door, on the one hand open the door through application of force spring with two oven doors spacing at the biggest angular position that opens the door, on the other hand close the door through return spring with application of force spring with the taut closed front opening part at the casing of two oven doors, have that the linkage process is smooth and easy, stable good advantage, promote user's experience and feel.

The utility model discloses a concrete technical scheme is:

a double-door air oven comprises a shell, two oven doors and a double-spring force application-return force linkage mechanism for opening or closing the two oven doors simultaneously, wherein the oven doors are rotatably arranged at the front opening of the shell at an opening angle not less than 90 degrees, the double-spring force application-return force linkage mechanism comprises a rotary disc, a first connecting rod, a second connecting rod, a force application spring which is stretched to be longest in the door opening process and then shortened, and a return force spring which is stretched all the time in the door opening process, the rotary disc is rotatably arranged at the bottom of the shell, the first connecting rod is respectively hinged with the rotary disc and one oven door, the second connecting rod is respectively hinged with the rotary disc and the other oven door, the force application spring is respectively connected with the shell and the first connecting rod, the return force spring is respectively connected with the shell and the second connecting rod, the two oven doors are synchronously opened and closed through the linkage of the first connecting rod and the second connecting rod, when the door is opened, the two oven doors are limited at the maximum opening angle position through the force application spring, and when the door is closed, the two oven doors are tensioned and closed at the front opening of the shell through the return spring and the force application spring.

The above technical scheme of the utility model, force application spring is stretched to the longest gradually when opening the door (oven door opens 90 ° just this moment), then continue to open the door to the maximum angle position, force application spring shortens certain length, this moment owing to striden the articulated shaft that oven door and casing are connected, force application spring and the atress dead point position that first connecting rod formed (oven door opens 90 when just), under force application spring's effect, the oven door of opening bears the effort that continues to move to the outside and with this oven door pulling pressure on the casing in order to form the atress spacing, under no exogenic action, the oven door can not self-closing.

Further, the return spring is elongated all the time at the in-process that opens the door, so it plays the effort that restraines the oven door and open at the in-process that opens the door, however when closing the oven door, should restrain the effort that the oven door was opened and can effectively play the effect of automatic closed oven door for the oven door is automatic closed on the one hand, and on the other hand can be with the taut closure of oven door at the preceding opening part of casing, realizes the automatic function of closing the oven door in place.

According to another embodiment of the present invention, the bottom of the housing is recessed downward to form a mounting groove for placing the dual spring force-return linkage mechanism, so as to save space, and specifically, a cover plate for covering the mounting groove is provided at the bottom of the housing to form a hidden structure design.

According to the utility model discloses a another kind of embodiment is equipped with the breach groove on the gyration dish, is equipped with the stopper that is used for injecing two oven door maximum angle positions that open door in the mounting groove, and when two oven doors were opened, looks butt between the cell wall in stopper and breach groove.

According to another embodiment of the present invention, the maximum opening angle of the two oven doors ranges from 93 ° to 100 °.

According to another embodiment of the present invention, the length of the force application spring exceeds the length of the return spring.

According to the utility model discloses a another kind of embodiment, application of force spring sets up in the left and right sides of gyration dish with return spring.

The utility model discloses possess following beneficial effect:

the utility model discloses two air ovens that open the door can realize the linkage cooperation of two oven doors in order to open in step and close, and the door is spacing with two oven doors at the maximum angular position that opens the door through application of force spring when opening the door, through return spring and application of force spring with the taut closed preceding opening part at the casing of two oven doors when closing the door, simple structure, oven door open with close the process smoothly, the stationarity is good.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a double-door air oven of the present invention;

FIG. 2 is a schematic view of the dual spring apply-return linkage of the present invention, showing the closed position of two oven doors;

fig. 3 is a schematic diagram of the dual spring force-return linkage of the present invention, showing the open position of two oven doors.

Detailed Description

A double door air oven, as shown in FIGS. 1-3, comprises a housing 10, two oven doors 20 and a double spring biasing-returning linkage mechanism 30, wherein the double spring biasing-returning linkage mechanism 30 is used for simultaneously opening or closing the two oven doors 20, wherein the oven doors 20 are rotatably disposed at a front opening of the housing 10 at a door opening angle not less than 90 °, for example, in the case that the maximum door opening angle of the oven door 20 shown in FIG. 3 is 95 °, and a mounting groove 11 for placing the double spring biasing-returning linkage mechanism 30 is formed in a downward recess of the bottom of the housing 10, so as to save the mounting space.

The dual-spring force application-return linkage mechanism 30 includes a rotary disc 31, a first link 32, a second link 33, a force application spring 34, and a return spring 35, wherein the force application spring 34 is stretched to the longest length in the door opening process and then shortened by a certain distance, and the return spring 35 is stretched all the time in the door opening process.

As shown in fig. 2, the bottom of the housing 10 is schematically illustrated, the rotary disk 31 is rotatably disposed at the bottom center of the housing 10, one end of the first link 32 is hinged to the rotary disk 31, the other end of the first link 32 is hinged to the right oven door 20, one end of the second link 33 is hinged to the rotary disk 31, the other end of the second link 33 is hinged to the left oven door 20, the force applying spring 34 is located at the right side of the rotary disk 31, one end of the force applying spring 34 is fixed at the bottom of the housing 10, the other end of the force applying spring 34 is connected to the first link 32, the return spring 35 is located at the left side of the rotary disk 31, one end of the return spring 35 is fixed at the bottom of the housing 10, and the other end of the return spring 35 is connected to the second link 33.

The two oven doors 20 are synchronously opened and closed through the linkage of the first link 32 and the second link 33, the two oven doors 20 are limited at the maximum opening angle position through the force application spring 34 when the door is opened, and the two oven doors 20 are tensioned and closed at the front opening of the shell 10 through the return spring 35 and the force application spring 34 when the door is closed.

The force applying spring 34 in this embodiment is a long spring, and during the opening process of the oven door 20, the state of the force applying spring 34 changes to extend to the longest position (at this time, the oven door 20 is opened by 90 °), and then the force applying spring 34 retracts a small distance as the oven door 20 continues to be opened to the maximum angle position; the return spring 35 is a short spring, and the state of the return spring 35 is gradually elongated until the oven door 20 is at the maximum angle position during the opening of the oven door 20.

Further, in the process of closing the oven door 20, after the oven door 20 is closed to an angle position smaller than 90 ° by means of an external force (for example, a human hand), the two oven doors 20 can complete the automatic closing process under the action of the force application spring 34 and the return spring 35, and since the return spring 35 is a short spring, it can provide a more sufficient force in the process of closing the oven door 20, so as to directly close the oven door 20 in place and not loosen in the process of closing the oven door 20.

The utility model provides a gyration dish 31 can adopt circular disk or cam disc, is equipped with breach groove 32 on gyration dish 31, is equipped with stopper 12 as injecing two oven doors 20 and opening the biggest angular position that opens door in the mounting groove 11, and when two oven doors 20 opened to the biggest angular position, looks butt between the cell wall in stopper 12 and breach groove 32 to carry on spacingly.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. Any person skilled in the art can make some modifications without departing from the scope of the invention, i.e. all equivalent modifications made according to the invention shall be covered by the scope of the invention.

Claims

1. A double-door air oven is characterized by comprising a shell, two oven doors and a double-spring force application-return force linkage mechanism for opening or closing the two oven doors simultaneously, wherein the oven doors are arranged at the front opening of the shell in a rotating manner at an opening angle not less than 90 degrees, the double-spring force application-return force linkage mechanism comprises a rotary disc, a first connecting rod, a second connecting rod, a force application spring which is stretched to the longest in the door opening process and then shortened, and a return force spring which is stretched all the time in the door opening process, the rotary disc is rotatably arranged at the bottom of the shell, the first connecting rod is respectively hinged with the rotary disc and one of the oven doors, the second connecting rod is respectively hinged with the rotary disc and the other oven door, and the force application spring is respectively connected with the shell and the first connecting rod, the return spring is respectively connected with the shell and the second connecting rod, the two oven doors are synchronously opened and closed through linkage of the first connecting rod and the second connecting rod, the two oven doors are limited at the maximum opening angle position through the force application spring when the door is opened, and the two oven doors are tensioned and closed through the return spring and the force application spring when the door is closed.

2. A double door air oven as claimed in claim 1 wherein said housing is recessed downwardly at the bottom thereof to form a mounting groove for receiving said dual spring apply-return linkage.

3. A double door air oven as claimed in claim 2, wherein said rotary plate is provided with a notched groove, and said mounting groove is provided with a stopper for limiting the maximum opening angle of two of said oven doors, and said stopper abuts against the groove wall of said notched groove when two of said oven doors are opened.

4. A double door air oven as claimed in claim 1 wherein the maximum opening angle of both said oven doors is in the range of 93 ° to 100 °.

5. A double door air oven as claimed in claim 1 wherein said force spring is of a length exceeding the length of said return spring.

6. A double door air oven as claimed in claim 1 wherein said biasing spring and said return spring are disposed on left and right sides of said turntable.