CN107334294B

CN107334294B - Drawer opening mechanism

Info

Publication number: CN107334294B
Application number: CN201710150283.1A
Authority: CN
Inventors: 陈松军; 陈明; 茅忠群; 诸永定; 李斌
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2017-03-14
Filing date: 2017-03-14
Publication date: 2022-10-21
Anticipated expiration: 2037-03-14
Also published as: CN107334294A

Abstract

The invention relates to a drawer opening mechanism, which comprises a drawer (1); the method is characterized in that: the automatic stirring device is characterized by also comprising a stirring mechanism (2), wherein the stirring mechanism (2) is arranged on the base (3); a guide hole (32) is formed in the base (3); the toggle mechanism (2) comprises: a driving device (21) which is a power source for opening the drawer (1); the push rod (22) is arranged in the guide hole (32) of the base (3) in a sliding penetrating mode, and the first end portion of the push rod (22) can be abutted against the drawer (1); and the transmission assembly (23) is connected between the driving device (21) and the second end part of the push rod (22) and is used for transmitting the power of the driving device (21) to the push rod (22) to drive the push rod (22) to move back and forth along the length direction and reset after the drawer (1) is pushed out.

Description

Drawer opening mechanism

Technical Field

The invention relates to the field of furniture or household appliances, in particular to a drawer opening mechanism of the furniture or the household appliances.

Background

The drawer is widely applied to the field of furniture or household appliances, and the conventional drawer opening mode is that a handle is arranged on a panel of the drawer, and the drawer is opened or closed through the handle. Especially when the drawer is pulled out, the handle is a necessary component.

There are generally two types of existing pull handle structures. One is the so-called open handle, i.e. the handle protrudes out of the drawer panel; the other is a hidden handle which is embedded in the drawer panel or a pull groove arranged on the drawer panel.

For the open handle, on one hand, the integral aesthetic property of the surface of the product is damaged, and on the other hand, the open handle protrudes out of the drawer panel and can touch the human body carelessly, so that the open handle is harmful to the human body, and especially for children, the open handle has potential safety hazards. The hidden handle is embedded on the drawer panel, so that dust is easily accumulated in the handle, and the cleaning is difficult.

Disclosure of Invention

The invention aims to solve the technical problem of providing a drawer opening mechanism capable of automatically opening a drawer aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the drawer opening mechanism comprises a drawer; the method is characterized in that: the stirring mechanism is arranged on the base;

the base is provided with a guide hole;

the toggle mechanism comprises:

the driving device is a power source for opening the drawer;

the push rod is slidably arranged in the guide hole of the base in a penetrating way, and the first end part of the push rod can be abutted against the drawer at least when the drawer is in a closed state;

and the transmission assembly is connected between the driving device and the second end part of the push rod and is used for transmitting the power of the driving device to the push rod, driving the push rod to move back and forth along the length direction and reset after the drawer is pushed out.

The transmission assembly capable of changing direction and transmitting torque has various modes, and preferably, the transmission assembly can comprise a first deflector rod and a second deflector rod;

the first end of the first driving lever is connected with the driving device and can rotate under the driving of the driving device; the second end part of the first deflector rod can be in sliding contact with the second deflector rod and can drive the second deflector rod to rotate;

the second driving lever is rotatably connected to the base through a connecting shaft;

the second end of the push rod can be limited on the second shift lever in a sliding mode.

In order to facilitate the connection of the push rod, a sliding hole or a sliding groove can be arranged on the second push rod, and the second end part of the push rod can be limited in the sliding hole or the sliding groove in a sliding manner.

In each scheme, the reset of the push rod can be completed by adopting the reverse rotation of a bidirectional motor, and preferably, the second driving lever can be divided into two parts by taking the connecting shaft as a boundary; the sliding hole or the sliding groove is arranged on the first part of the second driving lever; the first side wall of the second part of the second driving lever is connected with the second side wall of the first part in a turning way, and a concave part is formed between the first side wall and the second side wall; the shortest distance between the first side wall and the straight line of the length direction of the sliding hole is gradually reduced from the outside to the direction of the connecting shaft, and the shortest distance between the second side wall and the straight line of the length direction of the sliding hole is gradually reduced from the outside to the direction of the connecting shaft;

the second end of the first deflector rod is abutted against the first side wall or the second side wall of the concave part. This scheme adopts one-way motor, reduces the cost of motor to the whole cost of opening drawer mechanism has been reduced.

Preferably, the maximum displacement of the push rod is less than or equal to one half of the maximum stroke of the drawer. The scheme enables the drawer part to be automatically opened, the rest part can be manually opened according to needs, and the drawer part is particularly suitable for being applied to the field of household appliances such as disinfection cabinets, dish washing machines, electric steam boxes and the like; in addition, the scheme can endow the household appliance with new functions, so that the household appliance can also partially open the drawer automatically to inspect the contents in the drawer during working; this is not allowed in the prior art due to the security requirements; the partial opening function in the scheme can automatically open the drawer in the working process of the electric appliance on the premise of ensuring the use safety.

Compared with the prior art, the drawer opening mechanism provided by the invention can automatically open the drawer without arranging a handle on the drawer, so that the appearance of the drawer is cleaner, the processing and cleaning of a drawer panel are convenient, the assembly efficiency of the drawer is improved, and unsafe factors caused by the installation of the handle in the prior art are avoided. This application is particularly suitable for using domestic appliance on, for example sterilizer, electric steamer, dish washer, etc. can avoid opening the drawer, and the high temperature steam in the drawer dashes out and scalds the user, has improved domestic appliance's safety in utilization greatly.

Drawings

Fig. 1 is a perspective view illustrating a door opened state in embodiment 1 of the present invention;

FIG. 2 is a schematic perspective view of the embodiment 1 of the present invention after the toggle mechanism is reset after the door is closed or opened;

FIG. 3 is a longitudinal cross-sectional view of FIG. 1;

FIG. 4 is a longitudinal cross-sectional view of FIG. 2;

fig. 5 is a schematic perspective view of embodiment 2 of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Example 1

As shown in fig. 1 to 3, the automatic door opening mechanism includes:

the drawer 1 is provided on a frame (not shown).

The base 3 is provided with a limiting hole 32 and a connecting shaft 31.

The toggle mechanism 2 is arranged on the base 3, is connected with the drawer 1 and is used for pushing the drawer 1 so as to open or partially open the drawer 1; the method comprises the following steps:

the driving device 21, which is a motor in this embodiment, is a power source for opening the drawer 1, and the motor 1 is fixed on the base 3.

The push rod 22 is slidably inserted into the limiting hole 32 of the base 3, and a first end of the push rod 22 faces the drawer 1 and can push the drawer 1 to rotate by abutting against the drawer 1 under the action of an external force, so that the drawer 1 is opened or partially opened.

The transmission assembly 23 is connected between the driving device 21 and the push rod 22 and is used for converting the output torque direction of the driving device, transmitting the kinetic energy of the driving device to the push rod 22 and driving the push rod 22 to move along the length direction of the push rod; including a first lever 231 and a second lever 232.

An output shaft of the motor is drivingly connected to a first end of the first driving lever 231, and a second end of the first driving lever 231 abuts against the second driving lever 232.

The second shift lever 232 is rotatably connected to the base 3 through a connecting shaft 31; the second shift lever 232 is divided into two parts by taking the connecting shaft 31 as a boundary; a slide hole 233 is arranged on the first part 237 of the second shift lever 232; the first side wall 234 of the second portion 238 of the second lever 232 is hinged to the second side wall 235 of the first portion 237, forming a "V" shaped recess 236 therebetween; the shortest distance between the first side wall 234 and the sliding hole 233 gradually decreases from the outside to the connecting shaft 31, and the shortest distance between the second side wall 235 and the sliding hole 233 gradually decreases from the outside to the connecting shaft 31;

the second end of the first lever 231 slidably abuts against the wall of the recess 236, and the second lever 232 is driven to rotate along the connecting shaft 31 by changing the abutting position.

The sliding hole can be replaced by a sliding groove to adapt to push rods with different structures.

When the drawer opening mechanism works, the motor rotates to drive the second driving lever to rotate around the output shaft of the motor, and when the second end part of the second driving lever slides on the first side wall, the second driving lever is pushed to rotate around the connecting shaft in a reverse direction to drive the push rod which is slidably hinged in the sliding hole to axially move relative to the limiting hole, so that the drawer is pushed open.

The motor continues to work to drive the first deflector rod to continue rotating, the second end part of the first deflector rod slides to the second side wall of the second deflector rod, the second deflector rod is driven to rotate forwards around the connecting shaft, the push rod is enabled to retreat relative to the limiting hole, the push rod leaves the drawer, the conflict on the drawer is cancelled, and a user can conveniently and manually close the drawer; and the motor continues to rotate, the second end of the second shifting rod leaves the groove, and the second shifting rod returns to the initial position to wait for a working instruction.

Or the motor can also rotate reversely, the second end part of the first deflector rod rotates reversely, when the second end part slides on the second side wall, the second deflector rod does not act, when the second end part slides on the first side wall, the first deflector rod is pushed to rotate reversely around the connecting shaft to drive the push rod to retreat, and the first end part of the push rod cancels the conflict of the drawer.

Example 2

As shown in fig. 1 to 5, the present embodiment applies the drawer opening mechanism of embodiment 1 to a disinfection cabinet 4. The drawer 1 is a drawer of the disinfection cabinet, the disinfection cabinet is provided with two drawers, the automatic door opening mechanisms are two groups, and each drawer corresponds to one automatic door opening mechanism.

The base 3 and the toggle mechanism 2 are arranged in a cavity between the inner container 41 and the outer shell (not shown in the figure) of the disinfection cabinet, the first end of the push rod faces the back plate frame 11 of the drawer, and the maximum displacement of the push rod 22 is equal to the stroke of the disinfection cabinet when the drawer is opened by half.

The rest is the same as in example 1.

Claims

1. A drawer opening mechanism comprises a drawer (1); the method is characterized in that: the automatic stirring device is characterized by also comprising a stirring mechanism (2), wherein the stirring mechanism (2) is arranged on the base (3);

a guide hole (32) is formed in the base (3);

the toggle mechanism (2) comprises:

a driving device (21) which is a power source for opening the drawer (1);

the push rod (22) is arranged in the guide hole (32) of the base (3) in a sliding mode in a penetrating mode, and the first end portion of the push rod (22) can abut against the drawer (1) at least when the drawer (1) is in a closed state;

and the transmission assembly (23) is connected between the driving device (21) and the second end part of the push rod (22) and is used for transmitting the power of the driving device (21) to the push rod (22) to drive the push rod (22) to move back and forth along the length direction and reset after the drawer (1) is pushed out.

2. The drawer opening mechanism according to claim 1, characterized in that the transmission assembly (23) comprises a first lever (231) and a second lever (232);

the first end part of the first driving lever (231) is connected with the driving device (21) and can rotate under the driving of the driving device (21); the second end part of the first deflector rod (231) can be in sliding contact with the second deflector rod (232) and can drive the second deflector rod (232) to rotate;

the second driving lever (232) is rotatably connected to the base (3) through a connecting shaft (31);

the second end of the push rod (22) can be limited on the second driving lever (232) in a sliding mode.

3. The drawer opening mechanism according to claim 2, wherein the second lever (232) is provided with a sliding hole (233) or a sliding slot, and the second end of the push rod (22) is slidably limited in the sliding hole (233) or the sliding slot.

4. The drawer opening mechanism according to claim 3, wherein the second lever (232) is divided into two parts by the connecting shaft (31); the slide hole (233) or the slide groove is arranged on a first part (237) of the second shifting lever (232); a first side wall (234) on the second part (238) of the second shift lever (232) is connected with a second side wall (235) of the first part (237) in a turning way, and a concave part (236) is formed between the first side wall and the second side wall; the shortest distance between the first side wall (234) and a straight line of the length direction of the sliding hole (233) is gradually reduced from the outside to the direction of the connecting shaft (31), and the shortest distance between the second side wall (235) and the straight line of the length direction of the sliding hole (233) is gradually reduced from the outside to the direction of the connecting shaft (31);

the second end of the first lever (231) abuts against the first side wall (234) or the second side wall (235) of the recess (236).

5. The drawer opening mechanism according to any of claims 1 to 4, wherein the maximum displacement of the push rod (22) is less than or equal to one half of the maximum travel of the drawer.