CN211397120U

CN211397120U - Door opening and closing device and kitchen appliance

Info

Publication number: CN211397120U
Application number: CN201922206782.5U
Authority: CN
Inventors: 王庚辉; 李金龙; 朱丽珊; 梁少棠; 王大维
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-09-01
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses a door opening and closing device, which is used for driving a door body to open and close an opening of a shell, wherein the door body is provided with a swing arm, and the shell is provided with a slide block, a connecting rod and a driver; one end of the swing arm is provided with a crank part, and the crank part, the connecting rod and the sliding block form a crank-sliding block mechanism; the driver drives the sliding block to repeatedly translate, so that the door body is opened and closed along with the swinging of the swinging arm. Kitchen appliance, through setting up the switch door gear, realize automatic switch door.

Description

Door opening and closing device and kitchen appliance

Technical Field

The utility model belongs to switch door field especially relates to a switch door gear and kitchen appliance.

Background

With the improvement of living standard of people, various electric appliances begin to enter people's lives, such as embedded ovens, embedded dish washers and other high-end large kitchen appliances, the cabinet door often has a heavy structure, and when people hold bowls or food, the door is not convenient to open manually.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a door opening and closing device and kitchen appliance to realize automatic switch door.

In order to achieve the above object, the utility model discloses a switch door gear and kitchen appliance's concrete technical scheme as follows:

a door opening and closing device is used for driving a door body to open and close an opening of a shell, the door body is provided with a swing arm, and the shell is provided with a slide block, a connecting rod and a driver; one end of the swing arm is provided with a crank part, and the crank part, the connecting rod and the sliding block form a crank-sliding block mechanism; the driver drives the sliding block to repeatedly translate, so that the door body is opened and closed along with the swinging of the swinging arm.

Furthermore, the door opening and closing device also comprises a hinge seat; the slider is connected with the hinge base in a sliding manner, and the crank part is connected with the hinge base in a rotating manner through the central shaft.

Furthermore, the connecting rod comprises a front rod and a rear rod, the front end of the front rod is hinged to the tail end of the sliding block through a front shaft, the front end of the rear rod is hinged to the rear end of the front rod through a rear shaft, and the rear end of the rear rod is hinged to the crank portion through an eccentric shaft.

Furthermore, a rear track which is obliquely arranged is formed on the hinge seat; the rear shaft is connected with the rear rail in a sliding manner.

Further, a front rail horizontally arranged is formed on the hinge seat; the front shaft is connected with the front rail in a sliding mode.

Furthermore, a limiting slide way is arranged on the front rod, and a limiting rod penetrating through the limiting slide way is fixedly connected with the hinge seat.

Furthermore, the hinge seat is provided with a mounting plate, the mounting plate is provided with a through hole, and the sliding block penetrates through the through hole.

Furthermore, the slider overcoat is equipped with reset spring, and the slider is equipped with spacing end keeping away from mounting panel one end, and reset spring centre gripping is between mounting panel and spacing end.

Furthermore, the driving mechanism comprises a push rod motor, and the push rod motor comprises a motor, a transmission screw rod and a transmission block; the motor drives the transmission screw to rotate, the transmission screw and the transmission block form a screw nut pair, and the transmission block is abutted to the sliding block.

A kitchen appliance comprises a shell, a door body and the door opening and closing device; the door body is driven to swing through the door opening and closing device, so that the door body is automatically opened and closed.

The utility model discloses a door opening and closing device and kitchen appliance have following advantage: the electric appliance door body can be automatically opened, the problem that the door body is difficult to open for thin and weak groups such as women and the like is solved, and the situation that oil stains are distributed on hands, the operation is inconvenient and the like during cooking is solved.

Drawings

FIG. 1 is a schematic view of the connection structure between the door body and the shell of the present invention;

fig. 2 is a sectional view of the opening/closing door apparatus according to the present invention in a closed state;

fig. 3 is a sectional view of the door opening and closing device of the present invention in the door opening state;

fig. 4 is a schematic view of the door opening and closing device of the present invention.

The notation in the figure is:

1. a housing; 2. a door body; 3. a hinge mount; 31. a central shaft; 32. a rear rail; 33. a front rail; 34. a limiting rod; 35. mounting a plate; 4. swinging arms; 41. a crank portion; 5. a slider; 51. a limiting end; 6. a connecting rod; 61. a front bar; 62. a rear bar; 63. a front axle; 64. a rear axle; 65. an eccentric shaft; 66. a limiting slide way; 7. a push rod motor; 71. an electric motor; 72. a drive screw; 73. a transmission block; 8. a return spring.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.

As shown in fig. 1, the kitchen appliances of the present invention, such as an oven, a steam box and a dishwasher, all include a housing 1 and a door 2 hinged on the housing 1. Because the door body 2 is relatively thick and heavy, in order to facilitate the opening and closing of the door body 2, the kitchen appliance also comprises a door opening and closing device, and the door opening and closing device drives the door body 2 to swing, so that the automatic opening and closing of the door body 2 are realized.

As shown in fig. 2 and 3, the opening and closing door apparatus includes a hinge base 3, a swing arm 4, a slider 5, a link 6, and an actuator. The hinge base 3 is installed on the installation groove of the base of the shell 1, the slide block 5 and the connecting rod 6 are both installed on the hinge base 3, and the swing arm 4 is installed on the door body 2. One end of the swing arm 4 is provided with a crank part 41, and the crank-slider mechanism is composed of the crank part 41, the connecting rod 6 and the slider 5. The driver drives the sliding block 5 to repeatedly translate, so that the door body 2 can be automatically opened and closed along with the swinging of the swinging arm 3.

In order to adapt to the scarce design space of the shell 1, the connecting rod 6 comprises a front rod 61 and a rear rod 62, the front end of the front rod 61 is hinged at the tail end of the sliding block 5 through a front shaft 63, the front end of the rear rod 62 is hinged at the rear end of the front rod 61 through a rear shaft 64, the rear end of the rear rod 62 is hinged on the crank part 41 through an eccentric shaft 65, and the rear end of the crank part 41 is hinged on the hinge base through a central shaft 31, so that the swing arm 4 is driven by the eccentric shaft 65 to rotate around the central shaft 31 through the pushing of the sliding block 5.

Referring to fig. 4, the hinge base 3 is formed with a rear rail 32 disposed obliquely. The rear axle 64 is mounted on the rear rail 32 at both ends thereof and slidably connected to the rear rail 32. The hinge base 3 is also formed with a horizontally disposed front rail 33. The front axle 63 is mounted on the front rail 33 at both ends thereof and slidably connected to the front rail 33. Thereby ensuring that the force is effectively transmitted from the driver to the swing arm 3 by limiting the moving relation of the front shaft 63 and the rear shaft 64.

In addition, in order to further limit the moving path of the connecting rod 6, a limit slide way 66 is opened on the front rod 61, and a limit rod 34 penetrating through the limit slide way 66 is fixedly connected to the hinge base 3. Similarly, a limit slide 66 may be provided on the rear bar 62.

In order to ensure the translation of the sliding block 5, the hinge base 3 is provided with a mounting plate 35, the mounting plate 35 is provided with a through hole, and the sliding block 5 penetrates through the through hole, so that the sliding block 5 is connected with the hinge base 3 in a sliding manner.

The drive mechanism includes a driver and a reset member. The driver is push rod motor 7, and the driver includes motor 71, drive screw 72 and driving block 73, and the motor drives drive screw 72 and rotates, and drive screw 72 and driving block 73 constitute lead screw nut pair, rotates the rotary motion who conveys screw and turns into the linear motion of driving block 73, and conveying block butt slider 5 to drive slider 5 translation.

And the piece that resets is reset spring 8, and reset spring 8 cover is established outside slider 5, and slider 5 is being kept away from mounting panel 35 one end and is being equipped with spacing end 51, and reset spring 8 centre gripping is between mounting panel 35 and spacing end 51 to reset spring 8 drives slider 5 and resets, the migration of being convenient for next time.

In order to ensure the stability of opening and closing of the door body 2, at least one door opening and closing device is respectively arranged on two sides of the shell 1, and the door opening and closing devices on the two sides are symmetrically arranged about the central line of the door body 2, so that the door body 2 is stably opened and closed due to the same force arm.

In order to fix the swing arm 4 and the door body 2, various fixing methods may be adopted. As shown in fig. 1, the door body 2 is formed with slots at both sides, and the swing arms 4 at both sides are respectively inserted into the two slots and respectively connected with the door body 2 by bolts. In addition, the method can be realized by single practical insertion or bolt connection, or welding and the like.

Therefore, the door body 2 is driven to rotate by only pressing the switch or through the voice recognition system and the door opening and closing device, the door body 2 does not need to be manually closed, and the door opening and closing device is convenient and fast.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. A door opening and closing device is used for driving a door body (2) to open and close an opening of a shell (1), and is characterized in that the door body (2) is provided with a swing arm (4), and the shell (1) is provided with a slide block (5), a connecting rod (6) and a driver; one end of the swing arm (4) is provided with a crank part (41), and the crank part (41), the connecting rod (6) and the sliding block (5) form a crank sliding block mechanism; the driver drives the sliding block (5) to repeatedly translate, so that the door body (2) is opened and closed along with the swinging of the swinging arm (4).

2. A door opening and closing device according to claim 1, characterized by further comprising a hinge base (3); the sliding block (5) is connected with the hinge seat (3) in a sliding way, and the crank part (41) is connected with the hinge seat (3) in a rotating way through the central shaft (31).

3. Door opening and closing device according to claim 2, characterized in that the connecting rod (6) comprises a front rod (61) and a rear rod (62), the front end of the front rod (61) is hinged at the end of the slider (5) by a front shaft (63), the front end of the rear rod (62) is hinged at the rear end of the front rod (61) by a rear shaft (64), and the rear end of the rear rod (62) is hinged at the crank portion (41) by an eccentric shaft (65).

4. Door opening and closing device according to claim 3, characterized in that the hinge base (3) is formed with a rear rail (32) disposed obliquely; the rear shaft (64) is connected with the rear rail (32) in a sliding manner.

5. Door opening and closing device according to claim 3, characterized in that the hinge base (3) is formed with a horizontally arranged front rail (33); the front shaft (63) is connected with the front rail (33) in a sliding way.

6. The door opening and closing device as claimed in claim 3, wherein the front rod (61) is provided with a limiting slide way (66), and the hinge base (3) is fixedly connected with a limiting rod (34) penetrating through the limiting slide way (66).

7. A door opening and closing device as claimed in claim 2, wherein the hinge base (3) is provided with a mounting plate (35), the mounting plate (35) is provided with a through hole, and the slider (5) penetrates through the through hole.

8. Door opening and closing device according to claim 7, characterized in that the slide (5) is provided with a return spring (8) around it, the slide (5) being provided with a limit stop (51) at the end remote from the mounting plate (35), the return spring (8) being clamped between the mounting plate (35) and the limit stop (51).

9. Door opening and closing device according to claim 1, characterized in that the drive mechanism comprises a push rod motor (7), the push rod motor (7) comprising an electric motor (71), a drive screw (72) and a drive block (73); the motor drives the transmission screw rod (72) to rotate, the transmission screw rod (72) and the transmission block (73) form a screw rod nut pair, and the transmission block is abutted to the sliding block (5).

10. A kitchen appliance, characterized by comprising a housing (1) and a door body (2), and a door opening and closing device according to any one of claims 1-9; the door opening and closing device drives the door body (2) to swing, so that the door body (2) is automatically opened and closed.