CN217525039U

CN217525039U - Automatic door opening and closing device for dish washing machine and dish washing machine

Info

Publication number: CN217525039U
Application number: CN202220470882.8U
Authority: CN
Inventors: 孔成; 杨林; 潘显杰; 解婷; 公彦波; 李华; 孙立文
Original assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Dishwasher Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-10-04
Anticipated expiration: 2032-03-04

Abstract

The utility model discloses an automatic switch door gear and dish washer for dish washer, automatic switch door gear includes: the lock catch is provided with a lock tongue groove; one end of the lock tongue close to the lock catch can be clamped in the lock tongue groove or moved out of the lock tongue groove; and the position detection device is respectively connected with the lock tongue and the lock catch and is used for detecting the relative position information between the lock tongue and the lock catch. The utility model discloses in, if the door body is in the open mode, through whether phase separation of position detection device detection spring bolt and hasp, the direction motion that the control spring bolt is deviating from the door body avoids the user to bump because of leading to the door body and automatic switch door gear hard too big when the manual body of opening or closing, guarantees automatic switch door gear steady operation.

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

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 more and more high, and automatic door opening and closing device has begun to use on the dish washer, and the automatic control door body is opened or is closed, makes the dish washer use more convenient, improves the intelligence of dish washer.

If china patent discloses a dish washer, including the door body, door frame and door lock device, but door lock device is including the flexible moving element, the door frame corresponds the moving element and is equipped with the concave part so that establish the moving element embedding on the door body, realize a body buckle on the door frame, dish washer still includes a body position determination device, a body position determination device includes signal transmitter and signal receiver, the first party among signal transmitter and the signal receiver is installed in the door body fixed part of the door body, the second party is installed the door frame fixed part of door frame, but unable accurate definite door body switch door position and switch door time and control moving element's elasticity flexible, more can't judge whether there is the automation of the barrier influence door body in door body place ahead and open.

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 is to overcome the not enough of prior art, provide an automatic switch door gear for dish washer to the realization detects, improves the purpose of automatic switch door gear stability to relative position information between spring bolt and the hasp.

In order to solve the technical problem, the utility model adopts the following basic concept:

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

the lock catch is provided with a lock tongue groove;

one end of the lock tongue close to the lock catch can be clamped in the lock tongue groove or moved out of the lock tongue groove;

and the position detection device is respectively connected with the lock tongue and the lock catch and is used for detecting the relative position information between the lock tongue and the lock catch.

Further, the position detection device comprises a signal emitting piece and a signal receiving piece, one of the signal emitting piece and the signal receiving piece is arranged on the lock tongue, the other one of the signal emitting piece and the signal receiving piece is arranged on the lock catch, the lock tongue is clamped in the lock tongue groove, then the signal emitting piece triggers the signal receiving piece and enables the signal receiving piece to be in a receiving state, and when the lock tongue moves out of the lock tongue groove, the signal emitting piece releases the signal receiving piece and enables the signal receiving piece to be in a normal state.

Furthermore, the lock tongue groove has a gap towards one end of the lock tongue, the lock catch is positioned on two sides and the lower side of the gap and is provided with an insertion groove which is communicated up and down and is opened outwards, and the signal receiving part is arranged in the insertion groove.

Furthermore, one side of the lock catch facing the lock tongue is provided with a first wall which extends downwards in a downward inclined mode, the first wall is integrally connected with the end portion, located on two sides of the opening, of the side wall of the lock catch, second walls which protrude in the radial direction are arranged on the two side walls respectively, and the insertion groove is formed by the first wall and the second walls in an enclosing mode.

Furthermore, the side walls of the lock catch, which are positioned at two sides of the opening, are respectively provided with a plurality of reinforcing ribs extending outwards horizontally, and one side of each reinforcing rib, which faces the lock tongue, is integrally connected with the second wall of the corresponding side.

Furthermore, one end of the lock tongue, which is close to the lock tongue groove, is provided with a hook part which protrudes and extends downwards, the hook part extends into or moves out of the lock tongue groove through the opening, and the signal emitting part is arranged on the hook part.

Furthermore, the signal transmitting piece is a magnet, the signal receiving piece is a reed pipe, the spring bolt is clamped in the lock tongue groove, then a magnetic field generated by the magnet enables a normally open contact of the reed pipe to be attracted, and the spring bolt moves out from the lock tongue groove, then the normally open contact of the reed pipe springs open.

The utility model also provides a dish washer to the realization prevents that the inner bag from being pushed into the shell in with the purpose that the shell bumps.

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;

according to the automatic door opening and closing device, the lock catch is mounted on the door body, and the lock tongue is mounted on the machine body;

and the controller is connected with the position detection device and used for receiving the relative position information detected by the position detection device and judging whether to control the spring bolt to move towards the direction departing from the door body.

Furthermore, the position detection device comprises a signal emitting piece and a signal receiving piece, one of the signal emitting piece and the signal receiving piece is arranged on the bolt, the other one of the signal emitting piece and the signal receiving piece is arranged on the lock catch, and the signal receiving piece is connected with the controller.

Furthermore, the top end of the door body is provided with an avoiding opening at a position opposite to the lock catch, the lock catch is provided with an insertion groove matched with the avoiding opening, and the edge of the avoiding opening is inserted and installed in the insertion groove along the vertical direction.

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

1. In the utility model, the position detection device detects whether the lock tongue is separated from the lock catch, the control drive device drives the lock tongue to move towards the direction departing from the door body, the collision between the door body and the automatic door opening and closing device caused by excessive force applied by a user when the door body is manually opened or closed is avoided, and the stable operation of the automatic door opening and closing device is ensured.

2. The utility model discloses in, mutually support the state information in order to acquire the spring bolt through signal transmission spare and signal receiving spare, and then judge whether the spring bolt is in order to confirm to set for the target operating time period with the hasp, guarantee that the door body is opened to the position of opening the door, avoid the barrier to prevent the door body to open, improve security and the reliability that dish washer used.

3. The utility model discloses in, at the in-process that the door body was opened to the automatic door opening and closing device, through the positional information who acquires the spring bolt, confirm whether the spring bolt is moved to the position of opening the door by initial position, and then the degree that the accurate control door body was opened, the degree of avoiding the door body to open is too big and causes tableware secondary pollution, or the degree undersize that the door body was opened and can't realize the rapid draing of tableware.

The following describes embodiments of the present invention in further detail with reference to the accompanying 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 an 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 a connection structure between the door body and the latch according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of the lock catch in the embodiment of the present invention;

fig. 8 is a top view of a latch in an embodiment of the invention.

In the figure:

1. automatically opening and closing the door device; 11. a protective case; 12. a latch bolt; 121. a hook portion; 13. a push-pull rod; 14. a signal emitting member; 15. locking; 151. a lock tongue groove; 152. a signal receiving part; 153. inserting grooves; 154. reinforcing ribs; 155. opening the gap; 156. a first wall; 157. a second wall;

2. a door body; 21. avoiding the mouth.

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 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 as a specific case by those skilled in the art.

Example one

As shown in fig. 1 to 8, an embodiment of the present invention provides an automatic door opening and closing device 1 for a dishwasher, including: the lock catch 15 is provided with a lock tongue groove 151; the end, close to the buckle 15, of the lock tongue 12 can be clamped in the lock tongue groove 151 or moved out of the lock tongue groove 151; and the position detection device is respectively connected with the bolt 12 and the lock catch 15, and is used for detecting the relative position information between the bolt 12 and the lock catch 15.

In this embodiment, the position detection device is respectively connected with the lock tongue 12 and the lock catch 15, and the relative position information between the lock tongue 12 and the lock catch 15 can be obtained through the position detection device, so that whether the lock tongue 12 is separated from the lock catch 15 or not to control the lock tongue 12 to move in a direction away from the door body 2 is judged according to the obtained relative position information, and the collision between the door body 2 and the automatic door opening and closing device 1 caused by too large force when the user manually opens or closes the door body 2 is avoided.

In this embodiment, at the in-process that automatic switch door gear 1 opened a body 2, through the positional information who acquires spring bolt 12, confirm whether spring bolt 12 is moved to the position of opening the door by initial position, and then the degree that the accurate control door body 2 was opened, the degree of avoiding the body 2 to open is too big and causes tableware secondary pollution, or the degree that the body 2 door body 2 was opened is undersize and can't realize the rapid draing of tableware.

As shown in fig. 5 and 7, in this embodiment, the position detecting device includes a signal emitting element 14 and a signal receiving element 152, one of the signal emitting element 14 and the signal receiving element 152 is disposed on the latch tongue 12, and the other is disposed on the latch catch 15, when the latch tongue 12 is engaged in the latch tongue groove 151, the signal emitting element 14 triggers the signal receiving element 152 and makes the signal receiving element 152 in a receiving state, and when the latch tongue 12 is removed from the latch tongue groove 151, the signal emitting element 14 releases the signal receiving element 152 and makes the signal receiving element 152 in a normal state.

In this embodiment, when the latch 12 is engaged in the latch groove 151, the signal transmitter 14 triggers the signal receiver 152 and makes the signal receiver 152 in a receiving state, and the controller of the dishwasher can obtain a signal indicating that the latch 12 is engaged with the latch 15; when the latch bolt 12 moves out of the latch bolt slot 151, the signal emitting element 14 releases the signal receiving element 152 and makes the signal receiving element 152 in a normal state, so as to determine that the door body 2 is in a closed state, and control the latch bolt 12 to move in a direction away from the door body 2.

As shown in fig. 1 to 5, in the present embodiment, the automatic door opening and closing device 1 includes a protective box 11, a push-pull rod 13 and a driving device are disposed in the protective box 11, and the push-pull rod 13 can extend out of the protective box 11 in a horizontal direction under the action of the driving device.

As shown in fig. 1 to 5, in this embodiment, one end of the latch 12 is connected to the telescopic end of the push-pull rod 13 through a rotating shaft structure, and the other end protrudes out of the telescopic end of the push-pull rod 13 and is provided with a hook 121, so that the latch 12 can rotate up and down relative to the telescopic end and can reciprocate under the driving of the push-pull rod 13.

In this embodiment, the driving device includes a motor, a driving gear and a driven gear set, the driving gear is mounted on an output shaft of the motor, a rack is disposed on one 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.

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.

As shown in fig. 1 to 5, in this embodiment, a notch 155 is formed at one end of the lock tongue groove 151 facing the lock tongue 12, insertion grooves 153 which are vertically communicated and open outwards are formed at two sides and lower sides of the notch 155 of the lock catch 15, and the signal receiving part 152 is disposed in the insertion groove 153.

In this embodiment, the latch 12 is inserted into or moved out of the latch groove 151 through the opening 155 at one end of the latch 12, so that the latch 12 is clamped and fixed to or separated from the latch 15, and the door 2 is controlled to be automatically opened or closed to a specific position by the automatic door opening and closing device 1.

In this embodiment, in the process of controlling the automatic door opening and closing device 1 to open and close the door, the latch 12 is fastened and fixed or separated with the latch 15, the signal receiving device 152 is installed in the insertion groove 153, and the signal emitting device 14 and the signal receiving device 152 are not in direct contact, so that the damage of the signal receiving device 152 caused by collision or friction when the latch 12 is fastened with the latch 15 is avoided, and the service life of the automatic door opening and closing device 1 is prolonged.

As shown in fig. 1 to 5, in this embodiment, a side of the lock catch 15 facing the lock tongue 12 has a first wall 156 extending downward, the first wall 156 is integrally connected to end portions of side walls of the lock catch 15 located at two sides of the opening 155, the two side walls are respectively provided with a second wall 157 protruding in a radial direction, and the first wall 156 and the second wall 157 enclose the insertion groove 153.

In the embodiment, as shown in fig. 6 and 7, the side walls of the lock catch 15 on both sides of the opening 155 are respectively provided with a plurality of horizontally outwardly extending reinforcing ribs 154, and one side of the reinforcing ribs 154 facing the lock tongue 12 is integrally connected with the second wall 157 on the corresponding side to enhance the strength of the lock catch 15.

As shown in fig. 4 and 5, in this embodiment, a hook 121 protruding downward is disposed at one end of the locking bolt 12 close to the locking bolt groove 151, the hook 121 extends into or moves out of the locking bolt groove 151 through the notch 155, and the signal emitter 14 is disposed on the hook 121.

As shown in fig. 1 to 5, in this embodiment, the hook portion 121 can be engaged with the latch groove 151 or moved out from the latch groove 151, so as to realize the engagement between the latch 12 and the latch 15, and further precisely control the opening or closing of the door 2 of the dishwasher through the automatic door opening and closing device 1.

Through foretell an automatic door opening and closing device 1 for dish washer, position detection device detects spring bolt 12 and hasp 15 phase separation whether, and control drive arrangement drive spring bolt 12 moves to the direction that is kept away from the door body 2, avoids the user to open or close the door body 2 when manual and leads to the door body 2 and the automatic door opening and closing device 1 to bump because of exerting oneself too greatly, guarantees automatic door opening and closing device 1 steady operation.

Example two

The present embodiment is further limited by the first embodiment, the signal emitting element 14 is a magnet, the signal receiving element 152 is a reed pipe, the latch 12 is engaged with the latch groove 151, then a magnetic field generated by the magnet attracts a normally open contact of the reed pipe, and the latch 12 moves out of the latch groove 151, then the normally open contact of the reed pipe springs open.

In this embodiment, the signal emitting element 14 is a magnet, and the signal receiving element 152 is a reed switch; the relative position of the magnet and the reed switch is configured as follows: when the door of the dish washer is closed to the final position, the normally open contact of the reed switch can be attracted by the magnetic field generated by the magnetic field generator; and the normally open contact of the reed switch springs open once the dishwasher door leaves said final position.

EXAMPLE III

As shown in fig. 1 to 8, 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; according to the automatic door opening and closing device 1, the lock catch 15 is mounted on the door body 2, and the lock tongue 12 is mounted on the machine body; and the controller is connected with the position detection device and is used for receiving the relative position information detected by the position detection device and judging whether to control the bolt 12 to move towards the direction departing from the door body 2.

As shown in fig. 5 and 7, in the present embodiment, the position detecting device includes a signal emitting element 14 and a signal receiving element 152, one of the signal emitting element 14 and the signal receiving element 152 is disposed on the lock tongue 12, the other is disposed on the lock catch 15, and the signal receiving element 152 is connected to the controller.

As shown in fig. 1 to 5, in this embodiment, one end of the latch 12 is connected to the telescopic end of the push-pull rod 13 through a rotating shaft structure, and the other end protrudes out of the telescopic end of the push-pull rod 13 and is provided with a hook 121, the latch 12 can rotate up and down relative to the telescopic end and is driven by the push-pull rod 13 to reciprocate, and if it is determined that the door 2 is in a closed state, the controller controls the driving device to drive the push-pull rod 13 to retract into the protective box 11 so as to move the latch 12 in a direction away from the door 2.

As shown in fig. 1 to 5, in this embodiment, an avoiding opening 21 is formed at a position of the top end of the door body 2 opposite to the lock tongue 12, an insertion groove 153 adapted to the avoiding opening 21 is formed in the lock tongue 12, and an edge of the avoiding opening 21 is inserted into the insertion groove 153 in a vertical direction.

Through the dishwasher, the bolt 12 can rotate up and down relative to the push-pull rod 13, so that the bolt 12 is buckled with the lock catch 15 under the thrust action of the push-pull rod 13 or separated from the lock catch 15 under the tension action of the push-pull rod 13, the automatic opening or closing of the door body 2 is further realized, and the door body 2 is accurately controlled to be opened to a designated position.

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

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

the lock catch is provided with a lock tongue groove;

2. The automatic door opening and closing device for the dish washing machine as claimed in claim 1, wherein the position detecting device comprises a signal emitting element and a signal receiving element, one of the signal emitting element and the signal receiving element is disposed on the latch tongue, the other is disposed on the latch catch, the latch tongue is engaged in the latch tongue groove, the signal emitting element triggers the signal receiving element and makes the signal receiving element in a receiving state, and the latch tongue is removed from the latch tongue groove, the signal emitting element releases the signal receiving element and makes the signal receiving element in a normal state.

3. The automatic door opening and closing device of claim 2, wherein the latch groove has a notch at an end facing the latch, the latch is provided with insertion grooves which are vertically communicated and open outwards at two sides and a lower side of the notch, and the signal receiving member is disposed in the insertion groove.

4. The automatic door opening and closing device for the dish washer as claimed in claim 3, wherein a first wall extending downward is formed on a side of the latch facing the latch, the first wall is integrally connected to end portions of side walls of the latch located at both sides of the opening, second walls protruding in a radial direction are respectively formed on the two side walls, and the insertion groove is defined by the first wall and the second wall.

5. The automatic door opening and closing device for the dish washing machine as claimed in claim 4, wherein the side walls of the lock catch located at both sides of the opening are respectively provided with a plurality of horizontally outwardly extending reinforcing ribs, and one side of the reinforcing rib facing the latch is integrally connected with the second wall at the corresponding side.

6. The automatic door opening and closing device of claim 3, wherein the latch has a hook portion protruding downward from an end thereof adjacent to the latch groove, the hook portion extends into or out of the latch groove through the opening, and the signal emitter is disposed on the hook portion.

7. The automatic door opening and closing device for the dish washing machine as claimed in any one of claims 2 to 6, wherein the signal emitting member is a magnet, the signal receiving member is a reed pipe, the latch is engaged with the latch groove, and the magnetic field generated by the magnet attracts the normally open contact of the reed pipe, and the normally open contact of the reed pipe is sprung out when the latch is moved out from the latch groove.

8. A dishwasher, comprising:

a body having a washing chamber;

the automatic door opening and closing device as claimed in any one of claims 1 to 7, wherein the latch is mounted on the door body, and the latch is mounted on the body;

9. The dishwasher of claim 8, wherein the position detecting means comprises a signal emitting element and a signal receiving element, one of the signal emitting element and the signal receiving element is provided on the latch tongue, the other one of the signal emitting element and the signal receiving element is provided on the latch catch, and the signal receiving element is connected to the controller.

10. The dishwasher of claim 8, wherein an avoiding opening is formed at a position of the top end of the door body opposite to the lock catch, the lock catch is provided with an insertion groove matched with the avoiding opening, and an edge of the avoiding opening is inserted into the insertion groove along a vertical direction.