CN217525041U - Automatic door opening and closing device for dish washing machine and dish washing machine - Google Patents

Abstract

The utility model discloses an automatic switch door gear and dish washer for dish washer, dish washer includes the washing chamber and is used for sealing the door body in washing chamber, automatic switch door gear includes: the push-pull rod can generate reciprocating motion under the action of the driving device; one end of the lock tongue is connected with the telescopic end of the push-pull rod through a rotating shaft, and the other end of the lock tongue protrudes out of the telescopic end of the push-pull rod and is provided with a hook part; the rotating shaft structure comprises a supporting rotating shaft, the limiting elastic piece is sleeved on the supporting rotating shaft, one end of the limiting elastic piece is connected with the push-pull rod, and the other end of the limiting elastic piece is connected with the lock tongue. The utility model discloses in, the spring bolt can be relatively push-and-pull rod tilting, and spacing elastic component restriction spring bolt rotation degree makes the spring bolt under the thrust effect of push-and-pull rod with hasp looks lock joint or under the pulling force effect of push-and-pull rod with the hasp phase separation, realizes that the automation of the door body is opened or is closed to the assigned position is opened or is closed to the accurate control door body.

Description

Automatic door opening and closing device for dish washing machine and dish washing machine

Technical Field

The utility model belongs to kitchen domestic appliance field, specifically speaking relates to an automatic switch door gear and dish washer for dish washer.

Background

Along with the continuous improvement of the living standard of people, the requirements of people on the living quality are higher and higher, the dish washing machine is gradually accepted and accepted by the public, becomes one of necessary kitchen household appliances of modern intelligent kitchens, can save manpower and material resources to a greater degree, and can achieve a better cleaning effect.

The door body of traditional dish washer is opened or is closed through artifical hand power, needs the user to bend down the operation, and especially when the handheld tableware of user need open dish washer door again, operation dish washer is very difficult, and dish washer can't independently control, and degree of automation is lower, and user experience is poor. Along with the development of technology, kitchen appliance's intelligent degree is higher and higher, and automatic door opening and closing device has begun to use on dish washer, and automatic door opening and closing device can control the door body and open or close automatically, makes dish washer use more convenient.

For example, the Chinese patent discloses an automatic door opening device and a dish washing machine, wherein a door comprises a fixed part and a rotating part, and comprises a door lock arranged on the rotating part, a door hook arranged on the fixed part and clamped with the door lock, and a pushing device arranged on the fixed part; the pushing device comprises a motor, a speed reducing mechanism driven by the motor and a push rod driven by the speed reducing mechanism to apply thrust to the rotating part, the door lock and the door hook are clamped, and when the separating force provided by the push rod reaches a certain value, the door lock and the door hook are separated from each other, but the door body cannot be accurately controlled to be opened to a specified position.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming the not enough of prior art, provides an automatic switch door gear for dish washer to realize improving the purpose of automatic switch door gear stability.

In order to solve the technical problem, the utility model adopts the technical scheme that:

an automatic door opening and closing apparatus for a dishwasher, comprising:

the push-pull rod can generate reciprocating motion under the action of the driving device;

one end of the lock tongue is connected with the telescopic end of the push-pull rod through a rotating shaft structure, the other end of the lock tongue protrudes out of the telescopic end of the push-pull rod and is provided with a hook part, and the lock tongue can rotate up and down relative to the telescopic end;

the rotating shaft structure comprises a supporting rotating shaft, the limiting elastic piece is sleeved on the supporting rotating shaft, one end of the limiting elastic piece is connected with the push-pull rod, and the other end of the limiting elastic piece is connected with the lock tongue.

Furthermore, the limiting elastic part comprises a first spring body and a second spring body, a U-shaped connecting part is arranged between the first spring body and the second spring body, connecting arms protruding in the radial direction are respectively arranged on two sides of the telescopic end, and the first spring body and the second spring body are connected with the connecting arms on the opposite sides through supporting rotating shafts;

first spring body and second spring body locate the both sides of spring bolt, the spring bolt bottom is equipped with the confession the spacing groove of U-shaped connecting portion embedding.

Furthermore, the first spring body is provided with a first limiting arm, the second spring body is provided with a second limiting arm, and the telescopic end is provided with a containing groove for the first limiting arm and the second limiting arm to be embedded into.

Furthermore, the rotating shaft structure further comprises a limiting rotating shaft, two connecting arms and the spring bolt are respectively provided with a limiting hole for the limiting shaft to pass through, and one side of the spring bolt, which is perpendicular to the moving direction of the push-pull rod, is provided with a notch communicated with the limiting hole.

Furthermore, the hook part is provided with a limiting surface and a rotating surface which incline downwards relatively, and the included angle between the rotating surface and the horizontal plane is smaller than that between the rotating surface and the horizontal plane.

The utility model also provides a dish washer to realize opening or closing the purpose of a body through the automatic switch door gear is automatic.

A dishwasher, comprising:

a body having a washing chamber;

the door body is pivotally arranged on the machine body and is used for opening or closing the washing cavity;

the lock catch is arranged on the door body and provided with a lock tongue groove;

in the automatic door opening and closing device according to any of the above claims, the hook portion may be engaged with the locking tongue groove or moved out of the locking tongue groove.

Furthermore, the partial area of the top end of the lock tongue is recessed downwards to form a lock tongue groove with a notch facing one end of the lock tongue, and the hook part extends into or moves out of the lock tongue groove through the notch.

Furthermore, one side of the lock catch, which is close to the lock tongue, is provided with a pushing surface which extends downwards, the pushing surface is communicated with the opening, and the rotating surface is matched with the pushing surface so that the hook part rotates upwards along the pushing surface.

Furthermore, the lock tongue groove has the joint face that the downward sloping extends, with spacing face closely laminates, the joint face with the transition connection is buckled to the ejection face, and the contained angle between joint face and the ejection face is the acute angle.

Furthermore, the lock catch is positioned on two sides and the lower side of the opening and is provided with insertion grooves which are communicated up and down and open outwards, the top end of the door body is provided with a dodging opening, and the edge of the dodging opening is inserted into the insertion grooves along the vertical direction.

After the technical proposal is adopted, the utility model has the advantages that, compared with the prior art, the utility model following beneficial effect has.

1. The utility model discloses in, the spring bolt can be relatively push-and-pull rod tilting, and spacing elastic component restriction spring bolt degree of rotation makes the spring bolt under the thrust effect of push-and-pull rod with hasp looks lock joint or under the pulling force effect of push-and-pull rod with the hasp phase separation, realizes that the automation of the door body is opened or is closed to the assigned position is opened or is closed to the accurate control door body.

2. The utility model discloses in, the storage tank that spacing elastic component's first spacing arm and the spacing arm of second were embedded respectively, the spacing groove of spacing elastic component's U-shaped connecting portion embedding makes spacing elastic component twist reverse around supporting shaft, and then makes spring bolt and hasp joint fastening under spacing elastic component's the reset action.

The following describes embodiments of the present invention in further detail with reference to the attached drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived on the basis of these drawings without inventive effort. In the drawings:

fig. 1 is a schematic connection diagram of an automatic door opening and closing device and a door body in the embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a top view of the automatic door opening and closing device and the door body in the embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

fig. 6 is a schematic view of the connection between the automatic door opening and closing device and the inner container in the embodiment of the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6 at D;

fig. 8 is a schematic view of the connection between the push-pull rod and the latch bolt according to the embodiment of the present invention;

FIG. 9 is a cross-sectional view taken along line E-E of FIG. 8;

fig. 10 is an exploded view of the push-pull rod and locking bolt in an embodiment of the invention;

fig. 11 is a schematic structural diagram of a lock tongue at another angle in an embodiment of the present invention;

fig. 12 is a bottom view of the latch bolt in an embodiment of the present invention.

In the figure:

1. automatically opening and closing the door device; 11. a protective case; 111. a box body; 112. a cover body; 12. a latch bolt; 121. a hook portion; 1211. a limiting surface; 1212. a rotating surface; 122. a limiting groove; 123. connecting holes; 124. a limiting hole; 125. a notch; 13. a push-pull rod; 131. a connecting arm; 1311. connecting holes; 1312. a limiting hole; 132. a containing groove; 133. a rack; 14. a limiting elastic part; 141. a first spring body; 1411. a first limit arm; 142. a second spring body; 1421. a second limiting arm; 143. a U-shaped connecting portion; 15. a support shaft; 16. a limiting rotating shaft;

2. a door body;

3. locking; 31. a lock tongue groove; 32. opening the gap; 33. pushing the top surface; 34. a clamping surface; 35. inserting grooves;

4. an inner container; 41. a top plate; 42. flanging the inner container;

5. a support frame; 51. a support body; 52. and supporting the flanging.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "longitudinal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 to 12, an embodiment of the present invention provides an automatic door opening and closing device 1 for a dishwasher, including: a push-pull rod 13 capable of reciprocating under the action of a driving device; one end of the bolt 12 is connected with the telescopic end of the push-pull rod 13 through a rotating shaft structure, the other end of the bolt 12 protrudes out of the telescopic end of the push-pull rod 13 and is provided with a hook part 121, and the bolt 12 can rotate up and down relative to the telescopic end; the rotating shaft structure comprises a supporting rotating shaft 15, the limiting elastic part 14 is sleeved on the supporting rotating shaft 15, one end of the limiting elastic part 14 is connected with the push-pull rod 13, and the other end of the limiting elastic part is connected with the lock tongue 12.

In this embodiment, the push-pull rod 13 can move back and forth under the action of the driving device, so that the push-pull rod 13 drives the bolt 12 to move back and forth, and meanwhile, the bolt 12 can rotate up and down relative to the telescopic end to be clamped or separated with the latch 3 arranged on the door body 2 of the dishwasher, so as to automatically open or close the door body 2 of the dishwasher, and the limiting elastic component 14 generates elastic deformation to control the rotation degree of the bolt 12 in the process of interaction between the bolt 12 and the latch 3.

As shown in fig. 1 to 7, in the present embodiment, the automatic door opening and closing device 1 further includes a protective box 11 mounted on the machine body, a push-pull rod 13 and a driving device are disposed in the protective box 11, and a telescopic end of the push-pull rod 13 extends out of or moves into the protective box 11.

As shown in fig. 1 to 7, in this embodiment, the protection box 11 has a cover 112 and a box 111, the motor is fixed in the box 111, the push-pull rod 13 is slidably connected to the cover 112 and/or the box 111, and an extension direction of an output shaft of the motor is perpendicular to a moving direction of the push-pull rod 13.

As shown in fig. 7 and 8, in the present embodiment, the driving device includes a motor, a driving gear mounted on an output shaft of the motor, and a driven gear set, wherein a rack 133 is provided on a side of the push-pull rod 13 close to the driven gear set, an input end of the driven gear set is engaged with the driving gear, and an output end of the driven gear set is engaged with the rack 133.

In the embodiment, the motor rotates forward to drive the driving gear and the driven gear set to rotate synchronously, and the output end of the driven gear set drives the push-pull rod 13 to move towards the direction of the door body 2 so as to push the door body 2 to open automatically; the motor rotates reversely to drive the driving gear and the driven gear set to rotate synchronously, and the output end of the driven gear set drives the push-pull rod 13 to move towards the machine body so as to pull the door body 2 to close automatically.

In this embodiment, the push-pull rod 13 is slidably connected to the cover 112 and/or the box 111, so that the push-pull rod 13 is driven by the driven gear set to extend out of the protection box 11 and move into the protection box 11, thereby ensuring that the push-pull rod 13 can more smoothly complete the whole moving process and improving the output efficiency of the motor.

As shown in fig. 8 to 10, in this embodiment, the elastic limiting element 14 includes a first spring body 141 and a second spring body 142, a U-shaped connecting portion 143 is disposed between the first spring body 141 and the second spring body 142, radially protruding connecting arms 131 are respectively disposed on two sides of the telescopic end, and the first spring body 141 and the second spring body 142 are connected to the connecting arms 131 on the opposite sides via the supporting rotating shaft 15.

As shown in fig. 7 and 9 to 11, in the present embodiment, connection holes 1311 and 123 through which the support rotation shaft 15 passes are respectively formed at positions corresponding to the connection arm 131 and the latch 12 on both sides.

As shown in fig. 8 to 12, in this embodiment, the first spring body 141 and the second spring body 142 are disposed at two sides of the lock tongue 12, and the bottom end of the lock tongue 12 is provided with a limiting groove 122 for the U-shaped connecting portion 143 to be inserted into.

As shown in fig. 8 to 12, in the embodiment, the first spring body 141 has a first limiting arm 1411, the second spring body 142 has a second limiting arm 1421, and the telescopic end is provided with a receiving groove 132 for the first limiting arm 1411 and the second limiting arm 1421 to be inserted into.

In this embodiment, the accommodating groove 132 into which the first limiting arm 1411 and the second limiting arm 1421 of the limiting elastic member 14 are respectively inserted and the limiting groove 122 into which the U-shaped connecting portion 143 of the limiting elastic member 14 is inserted enable the limiting elastic member 14 to be twisted around the supporting rotating shaft 15, so that the latch 12 is fastened to the latch 3 under the restoring action of the limiting elastic member 14.

As shown in fig. 8 to 12, in this embodiment, the rotating shaft structure further includes a limiting rotating shaft 16, two connecting arms 131 and the lock tongue 12 are respectively provided with limiting holes 1312 and 124 for the limiting shaft to pass through, and one side of the lock tongue 12 perpendicular to the moving direction of the push-pull rod 13 is provided with a notch 125 communicated with the limiting hole 124 to limit the distance of the lock tongue 12 rotating up and down relative to the push-pull rod 13, so as to form a seesaw-like structure.

As shown in fig. 1 to 7, in the embodiment, a door body 2 of the dishwasher is provided with a latch 3, a bolt 12 is clamped with the latch 3, and when a separating force reaches a certain value, the two are separated from each other; the structure that can realize above-mentioned joint has a lot, for example spring bolt 12 adopts inclined plane and 3 cooperations of hasp, and the effect of going on power between the two, and power make when separating after reaching a definite value both.

As shown in fig. 1 to 7, in this embodiment, the hook portion 121 has a limiting surface 1211 and a rotating surface 1212 which are inclined downward, and an included angle between the rotating surface 1212 and a horizontal plane is smaller than an included angle between the rotating surface 1212 and the horizontal plane, so that the lock tongue 12 is engaged with or separated from the lock catch 3.

Through the automatic door opening and closing device 1 for the dish washing machine, the bolt 12 can rotate up and down relative to the push-pull rod 13, and the limiting elastic piece 14 limits the rotation degree of the bolt 12, so that the bolt 12 is buckled with the lock catch 3 under the thrust action of the push-pull rod 13 or separated from the lock catch 3 under the tension action of the push-pull rod 13, the automatic opening or closing of the door body 2 is realized, and the door body 2 is accurately controlled to be opened or closed to a designated position.

Example two

As shown in fig. 1 to 12, the embodiment of the present invention further provides a dishwasher, including: a body having a washing chamber; the door body 2 is pivotally arranged on the machine body, and the door body 2 is used for opening or closing the washing cavity; the lock catch 3 is arranged on the door body 2, and the lock catch 3 is provided with a lock tongue groove 31; in the automatic door opening and closing device 1 according to any of the above embodiments, the hook portion 121 may be engaged with the latch groove 31 or may be removed from the latch groove 31.

In this embodiment, the dishwasher includes a body and a door body 2 pivotally installed on the body, the body has a washing chamber, the door body 2 is used for opening or closing the washing chamber, an automatic door opening and closing device 1 is installed on the body, and the automatic door opening and closing device 1 is used for opening or closing the door body 2.

In this embodiment, the organism includes inner bag 4, and inner bag 4 has the washing chamber to the fore-opening, and inner bag 4 is including enclosing the roof 41 of establishing out the washing chamber, and the opening is opened or closed automatically to the automatic switch door gear 1 control door body 2, makes dish washer have the automatic switch door function, strengthens the market competition of product, promotes user's use and experiences.

As shown in fig. 6 and 7, in the present embodiment, a support frame 5 is provided at the front end of the inner container 4, and the automatic door opening and closing device 1 is detachably mounted on the top of the support frame 5 via a snap-in structure.

As shown in fig. 6 and 7, in this embodiment, the supporting frame 5 includes a supporting body 51 adapted to the front end of the inner container 4 and a supporting flange 52 perpendicular to the supporting body 51 and extending in a direction away from the inner container 4, the front end of the top of the inner container 4 is bent upward to form an inner container flange 42, and the supporting flange 52 and the inner container flange 42 are respectively provided at opposite positions with a hollow portion for the push-pull rod 13 to penetrate through.

In this embodiment, the push-pull rod 13 can move in the opening or closing direction of the door body 2, and then the push-pull rod 13 can move back and forth in the front-back direction, so that one end of the push-pull rod 13 passes through the hollow-out portions of the support flange 52 and the liner flange 42 to push the door body 2 open to the door opening position or pull the door body back to the door closing position.

In this embodiment, through buckle formula structure with automatic switch door gear 1 and 5 fixed connection of braced frame, realize automatic switch door gear 1's fast assembly and dismantlement, improve the packaging efficiency of dish washer, reduce the manufacturing cost of dish washer, the automatic switch door gear 1's of being convenient for maintenance and maintenance.

As shown in fig. 1 to 7, in this embodiment, a partial area of the top end of the lock tongue 12 is recessed downward to form a lock tongue groove 31 having a notch 32 facing one end of the lock tongue 12, and the hook portion 121 extends into or moves out of the lock tongue groove 31 through the notch 32, so that the lock tongue 12 is clamped with the latch 3 to drive the door body 2 to be automatically opened or closed to a specific position, meanwhile, the door body 2 is closed to the specific position, and the push-pull rod 13 can drive the lock tongue 12 and the latch 3 to be separated and retracted into the protective box 11 under the action of the driving device.

As shown in fig. 1 to fig. 7, in this embodiment, a side of the buckle 3 close to the lock tongue 12 is provided with a pushing surface 33 extending downward, the pushing surface 33 is communicated with the notch 32, and the rotating surface 1212 and the pushing surface 33 cooperate to rotate the hook portion 121 upward along the pushing surface 33.

As shown in fig. 1 to 7, in the present embodiment, the latch groove 31 has a downwardly inclined clamping surface 34 closely attached to the limiting surface 1211, the clamping surface 34 is bent and transitionally connected to the pushing surface 33, and an included angle between the clamping surface 34 and the pushing surface 33 is an acute angle.

As shown in fig. 1 to 7, in this embodiment, the latch 3 is provided with insertion grooves 35 which are vertically communicated and open outwards, and are located on two sides and a lower side of the opening 32, the top end of the door body 2 is provided with an avoiding opening, and an edge of the avoiding opening is inserted into the insertion groove 35 along a vertical direction, so as to realize the fixed connection between the latch 3 and the door body 2, and the connection structure is simple and the assembly efficiency is high.

Through the dish washing machine, the hook part 121 can be clamped in the lock tongue groove 31 or moved out of the lock tongue groove 31, so that the lock tongue 12 is clamped with the lock catch 3, and the door body 2 of the dish washing machine is accurately controlled to be opened or closed through the automatic door opening and closing device 1.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims (10)

1. An automatic door opening and closing apparatus for a dishwasher, comprising:

the push-pull rod can generate reciprocating motion under the action of the driving device;

it is characterized in that the preparation method is characterized in that,

one end of the lock tongue is connected with the telescopic end of the push-pull rod through a rotating shaft structure, the other end of the lock tongue protrudes out of the telescopic end of the push-pull rod and is provided with a hook part, and the lock tongue can rotate up and down relative to the telescopic end;

the rotating shaft structure comprises a supporting rotating shaft, the limiting elastic piece is sleeved on the supporting rotating shaft, one end of the limiting elastic piece is connected with the push-pull rod, and the other end of the limiting elastic piece is connected with the lock tongue.

2. The automatic door opening and closing device for the dishwasher of claim 1, wherein the position limiting elastic member comprises a first spring body and a second spring body, a U-shaped connecting portion is provided between the first spring body and the second spring body, radially protruding connecting arms are respectively provided at both sides of the expansion end, and the first spring body and the second spring body are connected to the connecting arms at opposite sides via a supporting rotation shaft;

first spring body and second spring body locate the both sides of spring bolt, the spring bolt bottom is equipped with the confession the spacing groove of U-shaped connecting portion embedding.

3. An automatic door opening and closing device for a dishwasher according to claim 2, wherein the first spring body has a first stopper arm, the second spring body has a second stopper arm, and the extendable end is provided with a receiving groove into which the first stopper arm and the second stopper arm are inserted.

4. The automatic door opening and closing device of a dishwasher of claim 2, wherein the rotating shaft structure further comprises a limiting rotating shaft, two connecting arms and the locking tongue are respectively provided with a limiting hole for the limiting shaft to pass through, and one side of the locking tongue perpendicular to the moving direction of the push-pull rod is provided with a notch communicated with the limiting hole.

5. The automatic door opening and closing device for the dishwasher of any one of claims 1 to 4, wherein the hook portion has a limiting surface and a rotating surface which are relatively inclined downward, and an included angle between the rotating surface and a horizontal plane is smaller than an included angle between the rotating surface and the horizontal plane.

6. A dishwasher, comprising:

a body having a washing chamber;

the door body is pivotally arranged on the machine body and is used for opening or closing the washing cavity;

the lock catch is arranged on the door body and provided with a lock tongue groove;

the automatic door opening and closing device according to any one of claims 1 to 5, wherein the hook portion is engageable with or removable from the latch groove.

7. The dishwasher of claim 6, wherein a partial area of the top end of the locking tongue is recessed downward to form a locking tongue groove having a notch toward one end of the locking tongue, and the hook portion is extended into or removed from the locking tongue groove through the notch.

8. The dishwasher of claim 7, wherein the side of the latch close to the latch tongue is provided with a push top surface extending downwards, the push top surface is communicated with the notch, and the rotating surface is matched with the push top surface to enable the hook part to rotate upwards along the push top surface.

9. The dishwasher of claim 8, wherein the latch groove has a downwardly inclined engaging surface closely attached to the limiting surface, the engaging surface is bent and transitionally connected to the ejecting surface, and an included angle between the engaging surface and the ejecting surface is an acute angle.

10. The dishwasher of claim 7, wherein the lock catch is provided with insertion grooves which are communicated up and down and open outwards at two sides and lower sides of the opening, the top end of the door body is provided with an avoiding opening, and the edge of the avoiding opening is inserted into the insertion grooves along the vertical direction.

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