CN216984837U

CN216984837U - Door body connecting structure for household appliance and household appliance

Info

Publication number: CN216984837U
Application number: CN202123009697.3U
Authority: CN
Inventors: 何小磊
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-07-19
Anticipated expiration: 2031-11-30

Abstract

The utility model relates to a door body connecting structure for a household appliance and the household appliance, wherein the door body connecting structure for the household appliance comprises a rotating piece which is vertically arranged, a position adjacent to the middle is used for being rotationally connected with the lower edge of an opening at the front side of a box body, and the upper end of the rotating piece is fixedly connected with the corresponding position of a door body of the household appliance; the first end of the pull rope is connected with the lower end of the rotating piece; the elastic piece acts on the second end of the pull rope, and the lower end of the rotating piece always has the tendency of moving backwards to position the rotating angle of the door body in the energy storage state; and the adjusting mechanism is connected with one end of the elastic piece, which is far away from the pull rope, and is used for driving the elastic piece to move along the stretching direction of the elastic piece. The pretightening force of the elastic piece is adjusted to realize hovering in the rotating process of the door body, and the balance between the elastic piece and the self weight of the door body is broken to control the opening and closing of the door body.

Description

Door body connecting structure for household appliance and household appliance

Technical Field

The utility model belongs to the field of household appliances, and particularly relates to a door body connecting structure for a household appliance and the household appliance.

Background

In the existing electric appliances, such as a steam box, a steam oven, a cleaning machine and the like, the electric appliances comprise a box body with a functional inner cavity and a door body which is arranged at an opening of the box body and can open or close the opening.

For example, the chinese utility model patent "dish washer", its patent number ZL201520248676.2 (the publication number is CN204618145U) discloses a dish washer includes: the device comprises a machine body, a first clamping piece and a second clamping piece, wherein a cavity with an open front end is defined in the machine body; the door body is arranged at the opening of the chamber, and the lower end of the door body is pivotally connected with the machine body so as to open and close the chamber; the door lock is arranged on the machine body and connected with the upper end of the door body so as to lock and unlock the door body; the electric control board is connected with the door lock and controls the door lock to lock and unlock the door body; the connecting piece is arranged between the machine body and the door body, one part of the connecting piece is connected with the machine body, the other part of the connecting piece is detachably connected with the door body, and the connecting piece limits the opening angle of the door body relative to the machine body when being connected with the door body. The door body is locked or unlocked by controlling the door lock through the electric control plate, the connecting piece adopts a pull rope, the pull rope is connected with the machine body through a tension spring, a stop block and an adjusting rod, and the door body is opened at a certain angle through the pull rope and the tension spring to be positioned. But the pretightening force of the tension spring (elastic piece) cannot be adjusted, the suspension in the opening process of the door bodies with different weights cannot be matched, and the opening and closing of the door bodies cannot be controlled.

Therefore, further improvements to the existing door body connecting structure and cleaning machine are required.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide a door connection structure for a household appliance, in which the pretightening force of an elastic element is adjustable, in view of the current situation of the prior art.

The utility model aims to solve the second technical problem of providing a stable door body connecting structure in the door body opening process.

The third technical problem to be solved by the utility model is to provide a household appliance with the door body connecting structure.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a door body connection structure for household appliances is used for realizing the rotary connection of a box body and a door body of the household appliances, and comprises:

the rotating piece is vertically arranged, the position of the rotating piece, which is close to the middle, is used for being rotationally connected with the lower edge of the front opening of the box body, and the upper end of the rotating piece is used for being fixedly connected with the corresponding position of the door body of the household appliance;

a pull rope, the first end of which is connected with the lower end of the rotating piece;

the elastic piece acts on the second end of the pull rope and always enables the lower end of the rotating piece to have the tendency of moving backwards to position the rotating angle of the door body in an energy storage state;

it is characterized by also comprising:

and the adjusting mechanism is connected with one end of the elastic piece, which is far away from the pull rope, and is used for driving the elastic piece to move along the stretching direction of the elastic piece.

The structure form of the adjusting mechanism is various, and can adopt the form of a cylinder, and also can adopt the form of a push rod motor, but preferably, the adjusting mechanism comprises:

the connecting piece is connected with one end of the elastic piece, which is far away from the pull rope, and a threaded hole is formed in the connecting piece;

the adjusting rod extends along the telescopic direction of the elastic piece, is in threaded connection with the threaded hole of the connecting piece, and is arranged to rotate around the axis of the adjusting rod relative to the connecting piece so as to drive the connecting piece to move along the telescopic direction of the elastic piece.

The rotation of the adjusting rod can be realized by adopting a manual adjusting mode, the requirement of active driving adjustment of a driving mechanism can also be adopted, the adjusting rod mechanism further comprises a driving mechanism for driving the adjusting rod to rotate, and the power output end of the driving mechanism is connected with the adjusting rod in a driving mode.

The technical scheme adopted by the utility model for solving the second technical problem is as follows: the driving mechanism comprises a motor, a first transmission gear and a second transmission gear, the power output end of the motor is connected with the first transmission gear in a driving mode, the rotating axis of the first transmission gear extends along the length direction of the adjusting rod, and the second transmission gear is installed on the adjusting rod and meshed with the first transmission gear.

In order to improve the stability of the rotation of the adjusting rod, the driving mechanism further comprises a worm extending along the up-down direction, the power output end of the motor is connected with the worm in a driving mode, the first transmission gear is a duplicate gear, the worm is meshed with a small gear of the duplicate gear, and a large gear of the duplicate gear is meshed with the second transmission gear.

The pull rope support device comprises a box body, a pull rope, a roller, a support device and a control device, wherein the roller is used for being rotatably arranged on the box body, the pull rope is wound on the roller, and the support device is used for supporting the pull rope and prolonging the service life of the pull rope.

The elastic member may be in the form of a tension spring or a spring, but preferably, the elastic member is a tension spring located behind the pulling rope, and a rear end of the tension spring is connected to the connecting member.

Preferably, the rotation piece is the connection piece that is the V-arrangement, the corner of connection piece is installed on the connecting seat through the pivot, the pivot is arranged along left right direction, the connecting seat is used for fixing on the box, the connection piece is including the rake that is used for connecting the vertical portion on a door body rear surface and top-down slope gradually backward, vertical portion extends along upper and lower direction, the upper end of rake is connected with the lower extreme of vertical portion, the first end of stay cord with the lower extreme of rake is connected.

The adjusting lever may be disposed to be gradually inclined leftward or rightward from front to rear and may also extend in the front-rear direction, but preferably, the adjusting lever extends in the front-rear direction.

The technical scheme adopted by the utility model for solving the third technical problem is as follows: the household appliance with the door body connecting structure is characterized in that: including the box and the door body, the front side of box is uncovered, the downside of the door body can set up through a body connection structure with rotating the uncovered department of front side of box.

In order to improve the rotating reliability of the door body, the lower parts of the left side and the right side of the door body are connected to the box body through the door body connecting structure.

In order to lock the door body on the refrigerator body in a door closing state, a door lock structure capable of locking the door body on the refrigerator body in the door closing state is arranged at a position, close to the center, of the upper side of the opening at the front side of the refrigerator body.

The household appliance may be a steaming oven, an oven, or a washing machine, etc., but preferably, the household appliance is a washing machine.

Compared with the prior art, the utility model has the advantages that: drive the elastic component through adjustment mechanism among this domestic appliance's the door body connection structure and move along its flexible direction, adjust the pretightning force of elastic component then to do not receive the restriction of door body weight, can realize rotating hovering of in-process to the door body, in addition, still can break the balance between the dead weight of elastic component and the door body, and then the opening and closing of the control door body.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

fig. 3 is a schematic view of the structure of fig. 2 at another angle.

Detailed Description

The utility model is described in further detail below with reference to the following examples of the drawings.

As shown in fig. 1, the household appliance of the present embodiment is a washing machine for washing kitchen utensils (such as dishes) or fruits and vegetables. The cleaning machine comprises a box body 1, a door body 2 and a door body connecting structure 01. Wherein the front side of the box body 1 is open, and the lower parts of the left and right sides of the door body 2 are respectively and rotatably arranged at the front side open of the box body 1 through a group of door body connecting structures 01 and are used for opening or closing the front side open of the box body 1. A door lock structure 12 capable of locking the door body 2 on the box body 1 in a door closing state is arranged at a position adjacent to the center of the upper side of the front opening of the box body 1, and the door lock structure 12 can also unlock the door body 2. The door lock structure in this embodiment adopts any structure in the prior art, as long as the locking and unlocking of the door body can be realized, and details will not be described in detail in this embodiment.

The two door connecting structures 01 have the same structural form, and the door connecting structure on the left side will be described as an example.

As shown in fig. 2, the door body connecting structure 01 includes a rotating member, a connecting seat 11, a pulling rope 4, an elastic member, an adjusting mechanism, a driving mechanism 7 and a roller 8. Wherein, rotate piece and be the connection piece 3 of V-arrangement for vertical layout, the corner of connection piece 3 is installed on connecting seat 11 through pivot 13, aforementioned pivot 13 is arranged along left right direction, connecting seat 11 is fixed on the left surface of box 1, connection piece 3 is including connecting vertical portion 31 and the slope 32 that top-down inclined backward gradually on the door body 2 rear surface, vertical portion 31 extends along upper and lower direction, the upper end of slope 32 is connected with the lower extreme of vertical portion 31.

As shown in fig. 2, the rope 4 is arranged in the front-rear direction, and a first end (front end) of the rope 4 is connected to a lower end of the inclined portion 32, the rope 4 is wound around the roller 8 at a position near the middle, and the roller 8 is rotatably provided on the left side surface of the box body 1. The elastic part is a tension spring 9 positioned behind the pull rope 4, the front end of the tension spring 9 is connected with the rear end of the pull rope 4, the rear end of the tension spring 9 is connected with an adjusting mechanism, and the adjusting mechanism drives the tension spring 9 to move back and forth along the stretching direction of the tension spring. The adjusting mechanism of the present embodiment comprises a connecting piece 5 and an adjusting rod 6, wherein the rear end of a tension spring 9 is connected with the connecting piece 5. The connecting member 5 in this embodiment is in the shape of a sheet, and a threaded hole 51 is formed in the connecting member 5. The adjustment lever 6 extends in the front-rear direction, the front end of the adjustment lever 6 is screwed into the screw hole 51, and the rear end of the adjustment lever 6 is driven by the drive mechanism 7 to rotate around its axis.

As shown in fig. 3, the driving mechanism 7 includes a motor 71, a first transmission gear, a second transmission gear 73, and a worm 74. The worm 74 extends in the up-down direction. The motor 71 is installed at the rear side of the case 1, and the worm 74 is installed at the power output end of the motor 71. The first transmission gear is a duplicate gear 72, the duplicate gear 72 is mounted on the box 1 through a mounting shaft 75, and the mounting shaft 75 is spaced apart from the adjustment lever 6, that is, the mounting shaft extends along the extending direction of the adjustment lever 6. The worm 74 is engaged with the small gear 721 of the duplicate gear 72, the large gear 722 of the duplicate gear 72 is engaged with the second transmission gear 73, and the second transmission gear 73 is installed on the adjusting lever 6. Thus, under the driving of the motor 71, the adjusting rod 6 is driven to rotate by the transmission of the worm 74, the dual gear 72 and the second transmission gear 73, and at this time, the connecting member 5 drives the rear end of the tension spring 9 to move back and forth along the front-back direction (i.e. the extension direction of the tension spring) so as to adjust the pretightening force of the tension spring 9, thereby matching the hovering (positioning) of the door bodies with different weights in the opening process. The tension spring 9 always enables the lower end of the connecting sheet 3 to have the tendency of moving backwards and then positioning the rotation angle of the door body 2 in the energy storage state.

Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the utility model, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

Claims

1. A door body connecting structure for household appliances is used for realizing the rotating connection of a box body (1) and a door body (2) of the household appliances, and comprises the following components:

the rotating piece is vertically arranged, the position of the rotating piece, which is close to the middle, is used for being rotationally connected with the lower edge of the front opening of the box body (1), and the upper end of the rotating piece is used for being fixedly connected with the corresponding position of the door body (2) of the household appliance;

a pull rope (4) having a first end connected to a lower end of the rotating member;

the elastic piece acts on the second end of the pull rope (4), and always enables the lower end of the rotating piece to have the tendency of moving backwards and then positioning the rotating angle of the door body (2) in an energy storage state;

it is characterized by also comprising:

and the adjusting mechanism is connected with one end of the elastic piece, which is far away from the pull rope (4), and is used for driving the elastic piece to move along the telescopic direction of the elastic piece.

2. The door body connecting structure according to claim 1, wherein: the adjustment mechanism comprises:

the connecting piece (5) is connected with one end of the elastic piece, which is far away from the pull rope (4), and a threaded hole (51) is formed in the connecting piece;

the adjusting rod (6) extends along the telescopic direction of the elastic piece, is in threaded connection with the threaded hole (51) of the connecting piece (5), and is arranged to rotate around the axis of the adjusting rod relative to the connecting piece (5) so as to drive the connecting piece (5) to move along the telescopic direction of the elastic piece.

3. The door body connecting structure according to claim 2, wherein: the device is characterized by further comprising a driving mechanism (7) for driving the adjusting rod (6) to rotate, wherein the power output end of the driving mechanism (7) is connected with the adjusting rod (6) in a driving mode.

4. The door body connecting structure according to claim 3, wherein: actuating mechanism (7) including motor (71), first drive gear and second drive gear (73), the power take off end of motor (71) with first drive gear drive links to each other, the axis of rotation of first drive gear is along the length direction who adjusts pole (6) extends, second drive gear (73) are installed adjust pole (6) go up and with first drive gear meshes mutually.

5. The door body connecting structure according to claim 4, wherein: the driving mechanism (7) further comprises a worm (74) extending along the up-down direction, the power output end of the motor (71) is connected with the worm (74) in a driving mode, the first transmission gear is a duplicate gear (72), the worm (74) is meshed with a small gear (721) of the duplicate gear (72), and a large gear (722) of the duplicate gear (72) is meshed with the second transmission gear (73).

6. The door body connecting structure according to claim 1, wherein: the pull rope is characterized by further comprising a roller (8) which is rotatably arranged on the box body (1), and the pull rope (4) is wound on the roller (8).

7. The door body connecting structure according to claim 2, wherein: the elastic part is a tension spring (9) positioned behind the pull rope (4), and the rear end of the tension spring (9) is connected with the connecting piece (5).

8. The door body connecting structure according to claim 1, wherein: the utility model discloses a refrigerator door, including a door body (2), rotate piece, connecting seat (1), connecting piece (3) are for being the connection of V-arrangement, the corner of connecting piece (3) is installed on connecting seat (11) through pivot (13), pivot (13) are arranged along left right direction, connecting seat (11) are used for fixing on box (1), connecting piece (3) are including vertical portion (31) and top-down slope (32) that are used for connecting on door body (2) rear surface gradually, vertical portion (31) extend along upper and lower direction, the upper end of slope (32) is connected with the lower extreme of vertical portion (31), the first end of stay cord (4) with the lower extreme of slope (32) is connected.

9. The door body connecting structure according to any one of claims 2 to 5, wherein: the adjustment lever (6) extends in the front-rear direction.

10. A home appliance having the door body coupling structure according to any one of claims 1 to 9, wherein: including box (1) and door body (2), the front side of box (1) is uncovered, the downside of door body (2) can set up through door body connection structure (01) with rotating the uncovered department of front side of box (1).

11. A household appliance as claimed in claim 10, characterized in that: the lower parts of the left side and the right side of the door body (2) are connected to the box body (1) through the door body connecting structure (01).

12. A household appliance as claimed in claim 10, characterized in that: a door lock structure (12) capable of locking the door body (2) on the box body (1) in a door closing state is arranged at a position, close to the center, of the upper side of the front opening of the box body (1).

13. The household appliance according to claim 10, wherein: the household appliance is a cleaning machine.