CN211432758U

CN211432758U - Dish washing machine

Info

Publication number: CN211432758U
Application number: CN201921638354.3U
Authority: CN
Inventors: 朱泽春; 胡鹏; 陈宁涛; 王猛
Original assignee: Joyoung Co Ltd
Current assignee: Hangzhou Jiuchuang Home Appliances Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-09-08
Anticipated expiration: 2029-09-29

Abstract

The utility model provides a dish washing machine, which comprises a machine body and a water tank, wherein a washing cavity with an open upper end is arranged in the water tank, an opening cover of the washing cavity is provided with a door body capable of being opened and closed, the dish washing machine also comprises a linkage mechanism for realizing linkage when the door body is opened and closed and a door body switch detection device for detecting the on-off state of the door body, the linkage mechanism is arranged on the cavity wall of the washing cavity, the linkage mechanism comprises a motion input part matched with the door body and a motion output part matched with the door body switch detection device, and the motion stroke of the motion output part is larger than that of the motion input part; the door body opening and closing detection device is installed below the water tank and is used for being matched with the motion output part of the linkage mechanism to detect the opening and closing state of the door body. The utility model discloses can use kitchen utensil technical field, the link gear has the stroke and enlarges the function, has improved the detection precision with the door body switch detection device of the link gear cooperation in order to detect door body on-off state.

Description

Dish washing machine

Technical Field

The utility model relates to the technical field of kitchen utensils, in particular to dish washing machine.

Background

With the development of society, the pursuit of health is becoming stronger due to the improvement of living standard and the enhancement of health consciousness of people, and the attention of people is paid to dish washing machines more and more, especially to water tank type dish washing machines. However, in the water tank type dishwasher, when the opening and closing state of the door body covering the water tank is detected, the door body is usually required to be opened by a large angle to be detected to be in the opening state, and the detection precision is not high.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above-mentioned technical problem, the utility model provides an among the dish washer, the link gear who realizes the linkage with the door body has the stroke and enlarges the function, has improved the detection precision with the door body switch detection device of the on-off state of the link gear cooperation in order to detect the door body.

In order to achieve the purpose of the utility model, the utility model discloses the technical scheme who takes as follows:

a dish-washing machine comprises a machine body and a water tank, wherein a washing cavity with an opening at the upper end is arranged in the water tank, a door body capable of being opened and closed is covered at the opening of the washing cavity, the dish-washing machine also comprises a linkage mechanism for realizing linkage when the door body is opened and closed and a door body opening and closing detection device for detecting the opening and closing state of the door body,

the linkage mechanism is arranged on the wall of the cleaning cavity and comprises a motion input part matched with the door body and a motion output part matched with the door body switch detection device, and the motion stroke of the motion output part is larger than that of the motion input part;

the door body switch detection device is installed below the water tank and is used for being matched with the motion output part of the linkage mechanism to detect the switch state of the door body.

Optionally, the motion input means and the motion output means are longitudinally movable means which are longitudinally movable;

the linkage mechanism further comprises a telescopic multi-stage connecting rod device, a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are connected to two ends of the multi-stage connecting rod device, the first end of the first connecting rod is hinged to the motion input component, the second end of the first connecting rod is hinged to the first end of the multi-stage connecting rod device, the first end of the second connecting rod is hinged to the second end of the multi-stage connecting rod device, and the second end of the second connecting rod is hinged to the motion output component.

Optionally, the multistage connecting rod device is composed of two connecting rod assemblies hinged to each other, each connecting rod assembly is formed by hinging a plurality of connecting rods end to end, and the first connecting rod is connected with the cavity wall of the cleaning cavity through a sliding column and a sliding groove in sliding fit.

the linkage mechanism further comprises a rotating connecting rod, the rotating connecting rod is hinged to the cavity wall of the cleaning cavity through a hinge shaft, the motion input component and the motion output component are both connected with the rotating connecting rod, and the distance between the motion output component and the hinge shaft is larger than the distance between the motion input component and the hinge shaft.

Optionally, the linkage mechanism further includes a reset piece, the motion input component can move towards the first direction under the action of the door body, and the reset piece enables the motion input component and the motion output component to move reversely and reset.

Optionally, the reset member comprises an elastic reset member, wherein:

a first limiting block is fixed on the wall of the cleaning cavity, and the elastic resetting piece is arranged between the first limiting block and the motion input part;

or a second limiting block is fixed on the wall of the cleaning cavity, and the elastic resetting piece is arranged between the second limiting block and the motion output part.

Optionally, a first magnetic member is arranged on the motion output component, the first magnetic member is a magnet, the door body switch detection device is a magnetic control switch, the magnetic control switch includes a reed switch arranged on the upper portion of the machine body, and the reed switch is arranged to sense the magnet when the door body is in one of the open state and the closed state, and not sense the magnet when the door body is in the other of the open state and the closed state.

Optionally, the reset element includes the first magnetic element and a second magnetic element fixed on a wall of the washing chamber, and the movement output element is reset by a magnetic force between the first magnetic element and the second magnetic element.

Optionally, a cover covering the linkage mechanism is fixed on the cleaning cavity;

or a mounting seat is fixed on the cleaning cavity, the linkage mechanism is mounted on the mounting seat, and a housing covering the linkage mechanism is fixed on the mounting seat.

Optionally, a cleaning shell is arranged in the water tank, the cleaning cavity is formed in the cleaning shell, the door body covers the cleaning shell, and the linkage mechanism is installed on the cleaning shell; the door body is provided with a third magnetic part, the motion input part of the linkage mechanism is provided with a fourth magnetic part, and when the door body is opened and closed, the motion input part acts through the magnetic acting force between the third magnetic part and the fourth magnetic part.

After the technical scheme is adopted, the utility model discloses following beneficial effect has:

1. in the dish washing machine, the linkage mechanism is installed in the cleaning cavity and can be linked with the door body of the switch, the door body switch detection device is installed below the outside of the water tank, and the door body switch detection device can be matched with the linkage mechanism to detect and know the switch state of the door body. Specifically, the linkage mechanism comprises a motion input part and a motion output part, when the door body rotates to be opened and closed, the motion input part can be linked with the door body and drive the motion output part to move, and the motion stroke of the motion output part is larger than that of the motion input part, so that the linkage mechanism has a stroke amplification function, and therefore when the door body rotates by a small angle, the door body opening and closing detection device can acquire the opening and closing state of the door body by detecting the motion of the motion output part.

The split type installation of link gear and door body switch detection device, door body switch detection device installs outside the basin, link gear installs on wasing the chamber, and need not the power supply, water and electricity separation has been realized, consequently under the unable wired power supply's of realization in the basin of dish washer the condition, still can realize the detection of switch door, the problem of line design or change on wasing the chamber has been avoided simultaneously, the repacking cost of basin formula dish washer when having reduced set up door body switch detection device, and the security performance of dish washer has been improved. In addition, the linkage mechanism has a stroke amplification function, and the detection precision of the door body opening and closing detection device which is matched with the motion output part of the linkage mechanism to detect the opening and closing state of the door body is improved.

2. In an exemplary linkage mechanism, a first end of a multi-stage connecting rod device is connected with a motion input part through a first connecting rod, a second end of the multi-stage connecting rod device is connected with a motion output part through a second connecting rod, and the first connecting rod is connected with the cavity wall of a cleaning cavity through a sliding column and a sliding chute which are in sliding fit, so that when a door body acts, the motion input part moves longitudinally upwards or downwards and drives the first connecting rod to rotate around the first end of the motion input part, meanwhile, the first connecting rod slides under the matching of the sliding column and the sliding chute, so that the second end of the first connecting rod is opened or closed, the first connecting rod drives the multi-stage connecting rod device to rotate and retract or extend, the multi-stage connecting rod device drives the motion output part to move longitudinally upwards or downwards, the longitudinal displacement of the motion output part is larger than that of the motion input part, and the stroke amplification, so as to improve the detection precision of the door body opening and closing detection device.

3. In another exemplary linkage mechanism, the motion input component and the motion output component are both connected with a rotation connecting rod, the rotation connecting rod is hinged with the cavity wall of the cleaning cavity through a hinge shaft, and the distance between the motion output component and the hinge shaft is greater than the distance between the motion input component and the hinge shaft, so that when the door body acts, the longitudinal displacement of the motion output component is greater than that of the motion input component, and the detection precision of the door body switch detection device is improved.

4. The linkage mechanism also comprises a reset piece, when the door body is closed (or opened), the door body can drive the motion input part to be linked, and further drive the motion output part to move towards a first direction; when the door body is opened (or closed), the reset piece can drive the motion input part and the motion output part to move reversely to reset.

The reset part can comprise a reset elastic part, the reset elastic part can be arranged between the motion input part and a first limiting block fixed on the cavity wall of the cleaning cavity, and the reset elastic part can reset by driving the motion input part to move so as to drive the motion output part to reset; or the reset elastic part can be arranged between the motion output part and a second limiting block fixed on the cavity wall of the cleaning cavity, and the reset elastic part can drive the motion output part to move and reset so as to drive the motion input part to move and reset.

Furthermore, the reset piece can comprise a first magnetic piece arranged on the motion output part and a second magnetic piece fixed on the wall of the cleaning cavity, and the motion output part is reset through the magnetic acting force between the first magnetic piece and the second magnetic piece so as to drive the motion input part to move and reset.

Through the elastic piece that resets, first magnetic part and second magnetic part, make motion input part and motion output part can reset completely, eliminated because of displacement volume error that tolerance and assembly error etc. lead to, help improving link gear's motion precision and door body switch detection device's detection precision.

The first magnetic part on the motion output part can be a magnet, the door body switch detection device is a magnetic control switch, the magnetic control switch comprises a reed switch arranged on the upper portion of the machine body, the reed switch senses the magnet when the door body is in one of an opening state and a closing state, and the magnet cannot be sensed when the door body is in the other of the opening state and the closing state. Therefore, the magnet can be sensed through the reed switch to know the opening and closing state of the door body.

5. The door body is provided with a third magnetic part, the motion input part of the linkage mechanism is provided with a fourth magnetic part, and when the door body is opened and closed, the motion input part acts through the magnetic acting force between the third magnetic part and the fourth magnetic part. Therefore, the door body does not need to be in contact with the linkage mechanism, and the linkage mechanism can be driven to act, so that the linkage mechanism is covered by the housing, and the influence on the smoothness of the movement of the linkage mechanism caused by the entering of foreign matters such as dust and the like into the linkage mechanism is avoided.

6. Be equipped with the washing casing in the basin, the door body lid closes and forms the washing chamber on wasing the casing, and link gear installs on wasing the casing, has avoided the inconvenience that installation link gear brought on the basin for the repacking convenient operation of basin formula dish washer has reduced the repacking cost of basin formula dish washer.

Other features and advantages of the present invention will be set forth in the description that follows.

Drawings

The accompanying drawings are included to provide a further understanding of the technical solutions of the present invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the present invention for explaining the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

FIG. 1 is a schematic structural diagram of a dishwasher according to a first embodiment of the present invention;

FIG. 2 is a schematic view of an assembly structure of a washing housing, a door body and a linkage mechanism of the dishwasher shown in FIG. 1;

FIG. 3 is an exploded view of the linkage mechanism of the dishwasher shown in FIG. 1;

FIG. 4 is a schematic structural view of the mounting base of FIG. 3;

FIG. 5 is a schematic diagram of the motion-input section of FIG. 3;

FIG. 6 is a schematic view of the motion output member of FIG. 3;

FIG. 7 is a structural diagram of the first connecting rod in FIG. 3;

FIGS. 8-10 are schematic views of the linkage mechanism of the dishwasher of FIG. 1 in different states;

fig. 11 and 12 are schematic structural views of linkage mechanisms of a dishwasher according to a second embodiment of the present invention in different states;

fig. 13 is an exploded schematic view of a door, a washing case and a linkage mechanism of a dishwasher according to a third embodiment of the present invention;

FIG. 14 is another perspective exploded view of the door, wash housing and linkage of FIG. 13;

FIG. 15 is a cross-sectional schematic view of the assembled structure of the door, wash housing and linkage shown in FIG. 14, with the door in an open position;

FIG. 16 is a partial schematic view of the structure of portion A of FIG. 15;

FIG. 17 is a cross-sectional schematic view of the assembled structure of the door, wash housing and linkage shown in FIG. 13, with the door in a closed position;

FIG. 18 is another cross-sectional schematic view of the assembled structure of the door, wash housing and linkage shown in FIG. 13, with the door in a closed condition;

fig. 19 is an exploded view of a door, a washing case and a linkage mechanism of a dishwasher according to the fourth embodiment of the present invention;

FIG. 20 is a cross-sectional schematic view of the assembled structure of the door, wash housing and linkage shown in FIG. 19, with the door in a closed position;

fig. 21 is a partial schematic view of the structure of portion B in fig. 20.

Reference numerals:

1-machine body, 11-door body switch detection device, 2-water tank,

3-cleaning shell, 30-cleaning cavity, 301-guide rod guide groove, 302-second spring fixing part, 31-mounting seat, 311-sliding column, 312-limiting groove, 313-limiting rib, 314-spring limiting column, 315-end wall, 32-housing, 33-third hinge shaft, 34-waterproof cover,

4-door body, 41-rotating connecting part, 42-third magnetic piece, 43-gear, 44-rotating pressing part,

5-linkage mechanism, 50-fourth magnetic member, 51-motion input member, 511-first hinge shaft, 512-limit end face, 513-first fixing groove, 514-spring limit hole, 52-motion output member, 521-second hinge shaft, 522-second fixing groove, 53-first connecting rod, 531-first shaft hole, 532-second shaft hole, 533-sliding groove, 54-first connecting rod member, 540-first connecting rod, 55-second connecting rod member, 550-second connecting rod, 56-second connecting rod, 57-return spring, 58-first magnetic member, 59-second magnetic member,

51 ' -guide rod, 510 ' -bending part, 52 ' -return spring, 53 ' -first magnetic part, 54 ' -magnet fixing seat, 55 ' -rotating connecting rod, 551 ' -shaft hole, 552 ' -guide cylinder, 553 ' -guide rod mounting hole, 554 ' -first spring fixing part, 56 ' -magnet fixing cover, 57 ' -transmission rod, 58 ' -stop washer.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, however, the present disclosure may be practiced otherwise than as specifically described herein, and thus the scope of the present disclosure is not limited by the specific embodiments disclosed below.

The first embodiment is as follows:

as shown in fig. 1 and 2, the present embodiment provides a dishwasher including a body 1 and a tub 2, the body 1 being located below the tub 2.

A cleaning cavity 30 with an open upper end is arranged in the water tank 2, and a door body 4 capable of being opened and closed is arranged at the opening of the cleaning cavity 30. Specifically, the rear side of the door body 4 may be provided with a rotational connection portion through which the door body 4 and the washing chamber 30 may be rotatably connected. When the door body 4 is opened, the tableware can be conveniently placed in the cleaning cavity 30 or taken out from the cleaning cavity 30; when the door 4 is closed, the tableware in the cleaning cavity 30 can be cleaned by spraying.

The dishwasher further comprises a linkage mechanism 5 and a door body opening and closing detection device 11.

The linkage mechanism 5 is arranged on the wall of the cleaning cavity 30 and can realize linkage when the door body 4 is opened and closed. Specifically, as shown in fig. 3, the linkage mechanism 5 includes a motion input member 51 engaged with the door 4 and a motion output member 52 engaged with the door opening and closing detection device 11, and a motion stroke of the motion output member 52 is larger than that of the motion input member 51.

The door opening/closing detection device 11 is installed below the water tub 2, and is configured to detect an opening/closing state of the door 4 by cooperating with the movement output part 52 of the linkage 5.

In the process of opening and closing the door body 4, the motion input part 51 of the linkage mechanism 5 moves along with the door body 4 and drives the motion output part 52 to move, and the motion stroke of the motion output part 52 is larger than that of the motion input part 51, so that the linkage mechanism 5 has a stroke amplification function, and therefore, when the door body 4 rotates by a small angle, the door body opening and closing detection device 11 can acquire the opening and closing state of the door body 4 by detecting the motion of the motion output part 52, and the detection precision of the door body opening and closing detection device 11 is improved.

In addition, link gear 5 and the split type installation of door body switch detection device 11, door body switch detection device 11 is installed outside basin 2, link gear 5 is installed on wasing chamber 30, and need not the power supply, water and electricity separation has been realized, consequently under the unable wired power supply's of realization condition in basin 2 of dish washer, still can realize the detection of switch door, the problem of line design or change on wasing chamber 30 has been avoided simultaneously, the repacking cost of basin formula dish washer when setting up door body switch detection device 11 has been reduced, and the security performance of dish washer has been improved.

Alternatively, as shown in fig. 1 and 3, the motion output part 52 is provided with a first magnetic member 58, the first magnetic member 58 is a magnet, the door body switch detection device 11 is a magnetic switch, the magnetic switch includes a reed switch disposed at an upper portion of the machine body 1, and the reed switch is configured to sense the magnet when the door body 4 is in one of the open state and the closed state, and not sense the magnet when the door body 4 is in the other of the open state and the closed state.

Specifically, as shown in fig. 3 and 6, the lower end of the movement output part 52 is provided with a second fixing groove 522, and the first magnetic member 58 is fixed in the second fixing groove 522.

When the door 4 is in a closed state, the magnet on the motion output part 52 is close (or far) to the reed pipe, and the reed pipe senses (or cannot sense) the magnet (the first magnetic part 58); when the door 4 is in the open state, the magnet on the motion output part 52 is far (or close) to the reed switch, and the reed switch cannot sense (or sense) the magnet. The electric control module in the dishwasher can know the detection state of the reed switch and know the opening and closing state of the door body 4.

The magnet is matched with the reed switch to detect the opening and closing state of the door body 4, the magnet does not need to be in contact with the reed switch, a through hole for the movement output part 52 and the magnet to penetrate through does not need to be formed in the water tank 2, the water tank 2 is ensured not to leak water, and the refitting operation when the door body opening and closing detection device 11 is arranged is simplified.

It should be noted that the door switch detection device 11 may be not only a magnetic switch, but also other types, such as: the door body switch detection device 11 may include a micro switch or other piezoelectric switch, and the motion output part 52 may contact and trigger the micro switch or other piezoelectric switch or be separated from the micro switch or other piezoelectric switch; or, the door switch detecting device 11 may include a photoelectric switch, the movement output part 52 may be provided with a light shielding sheet, and the movement output part 52 drives the light shielding sheet to move so as to block the light emitted by the emitting element of the photoelectric switch from propagating to the receiving element, or not block the light emitted by the emitting element of the photoelectric switch from propagating to the receiving element.

Alternatively, as shown in fig. 2 and 3, a mounting seat 31 is fixed to the cleaning chamber 30, the linkage mechanism 5 is mounted on the mounting seat 31, and a cover 32 covering the linkage mechanism 5 is fixed to the mounting seat 31.

The mounting seat 31 and the housing 32 are matched to form a closed cavity, and the linkage mechanism 5 is located in the closed wall, so that foreign matters such as dust are prevented from entering and the movement smoothness of the linkage mechanism 5 is prevented from being influenced.

Of course, the cleaning chamber 30 may be provided without the mounting seat 31, the linkage mechanism 5 may be directly mounted on the chamber wall of the cleaning chamber 30, and then the cover 32 covering the linkage mechanism 5 may be fixed to the cleaning chamber 30.

Alternatively, the motion input member 51 and the motion output member 52 are longitudinally movable members that are longitudinally movable. During the process of turning on and off the door 4, the motion input member 51 and the motion output member 52 move longitudinally upward or longitudinally downward.

Of course, the motion input member 51 and the motion output member 52 may also be rotatable rotating members, and the motion input member 51 and the motion output member 52 may be reciprocally rotated in the process of rotating the door body 4 to open and close. Such as: the linkage mechanism 5 can be a gear mechanism or a worm and gear mechanism and the like.

As shown in fig. 3, 8-10, the linkage mechanism 5 further includes a telescopic multi-stage linkage, and a first connecting rod 53 and a second connecting rod 56 connected to both ends of the multi-stage linkage, wherein a first end of the first connecting rod 53 is hinged to the motion input part 51, a second end of the first connecting rod 53 is hinged to a first end of the multi-stage linkage, a first end of the second connecting rod 56 is hinged to a second end of the multi-stage linkage, and a second end of the second connecting rod 56 is hinged to the motion output part 52.

The multistage connecting rod device is composed of two connecting rod assemblies which are hinged to each other, each connecting rod assembly is formed by hinging a plurality of connecting rods end to end, and the first connecting rod 53 is connected with the cavity wall of the cleaning cavity 30 through a sliding column 311 and a sliding groove 533 in sliding fit.

Specifically, as shown in fig. 3, 8-10, the mounting seat 31 is longitudinally arranged, the upper end (i.e., the left end in the figures) thereof is provided with a longitudinally movable motion input part 51, the lower end (i.e., the right end in the figures) thereof is provided with a longitudinally movable motion output part 52, and the motion input part 51 and the motion output part 52 are connected by a multi-stage linkage and a first connecting rod 53 and a second connecting rod 56 connected to both ends of the multi-stage linkage.

As shown in fig. 4 and 5, the upper end of the mounting seat 31 is provided with a limiting rib 313, the motion input component 51 is provided with a limiting end surface 512, and the limiting end surface 512 is engaged with the limiting rib 313 and is used for the lowest position of the motion input component 51 moving longitudinally and downwards. As shown in fig. 4, the lower end of the mounting seat 31 is provided with a limiting groove 312 for limiting the movement output component 52 to make it only move in the vertical direction, so that the movement position of the first magnetic component 58 is more accurate, and the detection of the door body opening and closing detection device 11 is facilitated.

As shown in fig. 3 to 5 and 7 to 10, the first connecting rod 53 is provided with two, a first end (i.e., an upper end) and a second end (i.e., a lower end) of the first connecting rod 53 are respectively provided with a first shaft hole 531 and a second shaft hole 532, and a sliding groove 533 is provided in the middle. The first hinge shaft 511 at the lower end of the motion input member 51 passes through the first shaft hole 531 and the second shaft hole 532, and the two first connecting rods 53 are hinged to the motion input member 51. Two sliding columns 311 are arranged on the mounting seat 31 fixed on the cleaning cavity 30, and the two sliding columns 311 respectively extend into the sliding grooves 533 of the two first connecting rods 53.

As shown in fig. 3 and 8-10, two mutually hinged connecting rod assemblies of the multi-stage connecting rod device are respectively a first connecting rod assembly 54 and a second connecting rod assembly 55, the first connecting rod assembly 54 includes a plurality of first connecting rods 540 sequentially hinged end to end, the second connecting rod assembly 55 includes a plurality of second connecting rods 550 sequentially hinged end to end, and the middle portions of the first connecting rods 540 and the second connecting rods 550 are hinged to form an X shape, so as to form a one-stage connecting rod device in the multi-stage connecting rod device. The first connecting rod 540 is hinged to the second connecting rod 550, and the first connecting rod 540 and the second connecting rod 550 are hinged to each other through the matching of the shaft and the shaft hole.

The first link 540 at the first end (i.e., the upper end) of the first link assembly 54 and the second link 550 at the first end (i.e., the upper end) of the second link assembly 55 are respectively provided with a hinge shaft, which is respectively hinged with the second shaft holes 532 of the two first link rods 53.

Hinge shafts are respectively provided on the first link 540 at the second end (i.e., the lower end) of the first link assembly 54 and the second link 550 at the second end (i.e., the lower end) of the second link assembly 55, and are respectively hinged to shaft holes at the first ends (i.e., the upper ends) of the two second links 56, and shaft holes at the second ends (i.e., the lower ends) of the two second links 56 are respectively hinged to the second hinge shaft 521 at the upper end of the movement output part 52.

When the door body 4 is actuated, the motion input member 51 moves longitudinally upward or downward. As shown in fig. 9, when the moving part moves longitudinally downward, the first connecting rod 53 is driven to rotate around the first hinge axis 511, and at the same time, the first connecting rod 53 slides under the cooperation of the sliding column 311 and the sliding groove 533, so that the second end of the first connecting rod 53 is opened, and the first connecting rod 53 drives the multi-stage linkage to rotate and retract, thereby driving the moving output part 52 longitudinally upward (in the direction shown by the arrow on the right side in fig. 9). As shown in fig. 8, when the moving member moves longitudinally upward, the first connecting rod 53 is driven to rotate around the first hinge axis 511, and at the same time, the first connecting rod 53 slides under the cooperation of the sliding post 311 and the sliding groove 533, so that the second end of the first connecting rod 53 is folded, and the first connecting rod 53 drives the multi-stage link device to rotate and extend, thereby driving the movement output member 52 longitudinally downward (in the direction indicated by the arrow on the right side in fig. 8).

In the movement process of the linkage mechanism 5, each level of the linkage device in the multi-level linkage device can amplify the stroke, and the linkage mechanism 5 is small in size and large in transmission ratio through the multi-level linkage device, so that the longitudinal displacement of the movement output part 52 is larger than that of the movement input part 51, the stroke is amplified, and the detection precision of the door body switch detection device 11 is improved.

It should be understood that the stroke amplification function of the linkage mechanism 5 can be realized not only by the multi-stage link device described above, but also by a rack and pinion mechanism or a sprocket chain mechanism. Such as: the linkage 5 may include two gears having different diameters mounted on the same rotation shaft and two racks engaged with the two gears, respectively, and connected to the motion input part 51 and the motion output part 52, respectively. Alternatively, the linkage mechanism 5 may comprise two sets of chain wheel and chain structures, two chain wheels are mounted on the same rotating shaft and have different diameters, and two chains are respectively connected with the motion input part 51 and the motion output part 52.

Optionally, the linkage mechanism 5 further includes a reset member, the motion input member 51 is movable toward the first direction by the door 4, and the reset member resets the motion input member 51 and the motion output member 52 in a reverse motion. Of course, the reset member may not be provided, and the door 4 may be used to drive the motion input member 51 to move in the first direction and the reverse direction.

Optionally, the reset element comprises an elastic reset element for the reverse kinematic reset of the motion input element 51 and the motion output element 52. Wherein, a first limit block is fixed on the cavity wall of the cleaning cavity 30, and the elastic reset piece is arranged between the first limit block and the motion input part 51.

Specifically, as shown in fig. 3 and 4, the elastic restoring member may be a restoring spring 57. The first limiting block is an end wall 315 of the mounting seat 31 fixed on the cleaning cavity 30, a spring limiting column 314 is further arranged on the end wall 315 of the mounting seat 31, the return spring 57 is sleeved outside the spring limiting column 314 and abutted against the end wall 315, and the spring limiting column 314 is used for limiting the return spring 57 and preventing the return spring 57 from being forced and dislocated. As shown in fig. 3 and 5, the upper end of the motion-input part 51 is provided with a spring stopper hole 514. The other end of the return spring 57 extends into the spring retention hole 514.

Optionally, as shown in fig. 3, the resetting member further includes the first magnetic member 58 and a second magnetic member 59 fixed on the wall of the washing chamber 30, and the movement output part 52 is reset by the magnetic force between the first magnetic member 58 and the second magnetic member 59.

Specifically, the first magnetic member 58 is a magnet, and the second magnetic member 59 is a magnetic member, such as a magnet or an iron product, and is disposed on the mounting seat 31, so that the movement output component 52 is reset by the magnetic attraction between the first magnetic member 58 and the second magnetic member 59. Of course, a magnetic repulsion force may also exist between the first magnetic member 58 and the second magnetic member 59, and the movement output member 52 is reset by the magnetic repulsion force.

When the link mechanism 5 is reset, the movement input member 51 is driven to move by the elastic force of the reset spring 57, and the movement output member 52 is reset by the first connecting rod 53, the multi-stage link device, and the second connecting rod 56. Due to the weight, assembly tolerance, and the like of the link mechanism 5 itself, when the return spring 57 brings the motion-input member 51 to be completely returned, the multi-stage link device and the second connecting rod 56 cannot be completely returned, resulting in a gap H between the first magnetic member 58 and the second magnetic member 59 mounted on the motion-output member 52, as shown in fig. 10. At this time, the magnetic attraction force between the first magnetic member 58 and the second magnetic member 59 is larger than the gravity of the link mechanism 5 itself, and the movement output member 52 is completely returned to the state shown in fig. 8 by the magnetic attraction force.

Alternatively, as shown in fig. 2 and 3, the door 4 is provided with a third magnetic member 42, and the motion input member 51 of the linkage mechanism 5 is provided with a fourth magnetic member 50. When the door 4 is opened or closed, the movement input member 51 is operated by the magnetic force between the third magnetic member 42 and the fourth magnetic member 50.

Specifically, as shown in fig. 2 and 3, the third magnetic member 42 is disposed on the front side of the door 4, and the linkage mechanism 5 is mounted on the mounting seat 31 fixed on the chamber wall on the front side of the cleaning chamber 30. As shown in fig. 3 and 6, the motion input part 51 is provided at an upper end thereof with a first fixing groove 513 for receiving the fourth magnetic member 50. The motion input member 51 is operated by the magnetic attraction force between the third magnetic member 42 of the door 4 and the fourth magnetic member 50 of the motion input member 51. Like this, the door body 4 need not to contact with link gear 5, can drive the action of link gear 5 to cover, seal with link gear 5 through housing 32, avoid foreign matters such as dust or steam to get into link gear 5, influence the smoothness nature of link gear 5 motion, make the durability of link gear 5 good, can work under the complicated operating mode.

After the stroke is enlarged by the multi-stage link device, in the case where the stroke of the motion output member 52 and the magnet is constant, the stroke of the motion input member 51 is reduced, so that the operation stroke between the third magnetic member 42 and the fourth magnetic member 50 is also small, the magnetic force requirement between the third magnetic member 42 and the fourth magnetic member 50 is also small, and the requirements for the size, the magnetic field strength, and the like of the third magnetic member 42 and the fourth magnetic member 50 are reduced.

Of course, there may be a magnetic repulsive force between the third magnetic member 42 and the fourth magnetic member 50, and the motion input member 51 is operated by the magnetic repulsive force.

Optionally, as shown in fig. 1 and 2, a cleaning housing 3 is disposed in the water tank 2, a cleaning chamber 30 is formed in the cleaning housing 3, the door 4 covers the cleaning housing 3, and the linkage mechanism 5 is mounted on the cleaning housing 3.

The linkage mechanism 5 is arranged on the cleaning shell 3, so that the inconvenience caused by the arrangement of the linkage mechanism 5 on the water tank 2 is avoided, the refitting operation of the water tank type dish washing machine is convenient, and the refitting cost of the water tank type dish washing machine is further reduced.

Of course, the washing tub 2 may be directly attached to the link mechanism 5 without providing the washing case 3.

The following describes the dishwasher provided in the present embodiment in detail.

As shown in fig. 1 and 2, the dishwasher of the present embodiment is a sink type dishwasher having a linkage mechanism 5 and a door opening and closing detecting device 11. The water tank type dish washer includes a conventional normal water tank 2 in a user's home, a washing case 3 placed in the tank of the normal water tank 2, a machine body 1 below the water tank 2, and a hanging connection module for connecting the machine body 1 and the water tank 2.

The cleaning shell 3 and the water tank 2 are of a separable structure, the cleaning shell 3 is provided with a rotatable door body 4, the cleaning shell 3 and the door body 4 are matched to form a five-surface closed cleaning space, and other structures such as a bowl rack and the like can be arranged in the cleaning space. A linkage mechanism 5 is arranged on one side wall (such as the front side wall or other side walls) of the cleaning shell 3, a door body switch detection device 11 is arranged on the machine body 1, and the door body switch detection device 11 can comprise a reed switch and can also be of other structures. The door opening/closing detection device 11 is located below the magnet provided on the motion output member 52 of the link mechanism 5, and may be located in the projection plane of the magnet, for example.

The door body 4 is rotatably arranged on the cleaning shell 3, the rotating angle of the door body 4 can be 0-110 degrees, and the third magnetic part 42 is arranged on the door body 4.

When the door 4 is fully opened, the linkage mechanism 5 in the cleaning case 3 is not acted by the magnetic action force between the third magnetic member 42 and the fourth magnetic member 50, and the state of the linkage mechanism 5 is as shown in fig. 8. At this time, the magnet (first magnetic member 58) is located outside the detection range of the reed switch of the door opening and closing detection device 11.

As shown in fig. 8, the linkage 5 is in the non-triggered rotation state, the return spring 57 is partially compressed at this time, the multi-stage link device is in the contracted rotation state under the elastic force of the return spring 57, the magnet mounted on the motion output member 52 is located at the upper position and is tightly attached to the second magnetic member 59, and the limit end surface 512 of the motion input member 51 is tightly attached to the limit rib 313 of the mounting seat 31. The slide groove 533 of the first connecting rod 53 contacts the slide post 311 on the mount 31 at an upper position.

When the door 4 is rotated and closed, the angle between the door 4 and the cleaning housing 3 is reduced, the third magnetic member 42 gradually approaches the fourth magnetic member 50 (as shown by the left arrow in fig. 8), the distance between the third magnetic member and the fourth magnetic member is gradually reduced, the magnetic attraction force between the third magnetic member and the fourth magnetic member is gradually increased, and the smaller the distance, the larger the magnetic attraction force. When the angle between the door 4 and the cleaning casing 3 is reduced to theta (theta may be less than or equal to 10 degrees), and the distance between the third magnetic member 42 and the fourth magnetic member 50 reaches a certain value D1, the magnetic attraction between the third magnetic member 42 and the fourth magnetic member 50 is large enough to be greater than the sum of the elastic force of the return spring 57 and the magnetic attraction between the magnet and the second magnetic member 59, and the fourth magnetic member 50 drives the motion input part 51 to move upward, to approach the third magnetic member 42, to compress the return spring 57, and to drive the multi-stage link device and the motion output part 52 to move.

Specifically, when the motion input component 51 moves upward, the sliding slot 533 of the first connecting rod 53 slides relative to the sliding column 311 of the mounting seat 31, and the first shaft hole 531 of the first connecting rod 53 rotates relative to the first hinge shaft 511 of the motion input component 51, the first connecting rod 53 drives the multi-stage linkage to gradually extend, and further drives the motion output component 52 to move downward (as shown by the arrow on the right side in fig. 8), and the magnet on the motion output component 52 synchronously moves downward until reaching the bottom position of the mounting seat 31 (as shown in fig. 9). At this time, the return spring 57 is fully compressed, and the distance between the fourth magnetic member 50 and the third magnetic member 42 is ≦ D1.

As shown in fig. 9, when the door 4 is completely closed, the third magnetic member 42 faces the fourth magnetic member 50 inside the linkage mechanism 5. At this time, the magnet is located in the detection range of the reed pipe of the door body switch detection device 11, the door body switch detection device 11 detects the magnet, and the dishwasher can be started or operated.

When the door 4 is opened, the third magnetic member 42 is gradually separated from the fourth magnetic member 50 (as shown by the left arrow in fig. 9), the distance between the third magnetic member 42 and the fourth magnetic member 50 is increased, and the magnetic attraction force between the third magnetic member 42 and the fourth magnetic member 50 is gradually decreased. When the door 4 is opened to β (β may be > 10 °), and the distance between the third magnetic member 42 and the fourth magnetic member 50 reaches a certain value D2, when the sum of the magnetic attraction between the third magnetic member 42 and the fourth magnetic member 50 and the magnetic attraction between the magnet and the second magnetic member 59 is smaller than the elastic force of the return spring 57, the return spring 57 starts to bounce, and drives the motion input member 51 to move, so as to drive the motion output member 52 to move up and return (in the direction indicated by the right arrow in fig. 9) through the multi-stage link device. At the same time, the movement output member 52 is completely returned to the state shown in fig. 8 by the magnetic attraction force between the second magnetic member 59 and the magnet.

The movement output part 52 moves upwards to drive the magnet to move upwards, so that the magnet gradually leaves the sensing range of the door body switch detection device 11 until the magnet completely leaves the sensing range of the door body switch detection device 11. The door body switch detection device 11 cannot detect the magnet, so that the dishwasher stops working or cannot enter the working.

In summary, in the dishwasher provided in this embodiment, the linkage mechanism 5 is a completely sealed structure, and can transmit the motion without direct contact, and has a stroke amplifying function, small tolerance, and can be used under complicated working conditions.

Example two:

the embodiment provides a dishwasher, which is mainly different from the first embodiment in the arrangement position of an elastic reset piece.

In this embodiment, as shown in fig. 11 and 12, the elastic reset element is disposed at the lower part of the linkage mechanism 5, wherein a second stopper is fixed on the cavity wall of the cleaning cavity 30, and the elastic reset element is disposed between the second stopper and the movement output part 52.

Specifically, as shown in fig. 11 and 12, the elastic restoring member may be a restoring spring 57. The second stopper is provided on the mounting seat 31 fixed to the cleaning chamber 30, and one end of the return spring 57 abuts against the second stopper and the other end abuts against the movement output member 52.

When the third magnetic member 42 is not close, the state of the link mechanism 5 is as shown in fig. 11; when the third magnetic member 42 approaches, a magnetic attraction force is generated between the third magnetic member and the fourth magnetic member 50, the motion input member 51 moves upward, the motion output member 52 is driven by the multi-stage linkage to move downward, and the motion output member 52 compresses the return spring 57 downward, as shown in fig. 12. When the third magnetic member 42 is far away from the fourth magnetic member 50, the magnetic attraction between the third magnetic member 42 and the fourth magnetic member 50 is reduced, and the return spring 57 rebounds to drive the motion input member 51, the motion output member 52, and the multi-stage link device to return to the state shown in fig. 11.

In the present embodiment, since the return spring 57 is located below the interlocking mechanism 5, the movement output member 52 can be returned only by the elastic force of the return spring 57 without the magnetic attraction force between the magnet and the second magnetic member 59. Of course, a second magnetic member 59 may be provided to cooperate with the magnet to reset the motion output member 52.

Example three:

the embodiment provides a dishwasher, which is mainly different from the first embodiment in the structure of a linkage mechanism.

In the present embodiment, as shown in fig. 13 and 14, the link mechanism includes a rotation connecting rod 55' in addition to the motion input member and the motion output member.

The motion input component and the motion output component are longitudinally movable components, the rotating connecting rod 55 'is hinged with the cavity wall of the cleaning cavity 30 through a third hinge shaft 33, the motion input component and the motion output component are both connected with the rotating connecting rod 55', and the distance between the motion output component and the hinge shaft is larger than the distance between the motion input component and the hinge shaft.

Specifically, as shown in fig. 13 to 18, a gear 43 is provided on the rotation connecting portion 41 at the rear side of the door body 4, and the rotation center of the gear 43 may coincide with the rotation center of the door body 4. The motion input means comprises a transmission rod 57 'provided with a rack gear engaged with the gear 43 at one end and connected with the rotation connecting rod 55' at the other end.

The motion output part comprises a guide rod 51 ', a bent part 510 ' is arranged at the upper end of the guide rod 51 ', a guide rod guide groove 301 is arranged on the rear side wall of the cleaning shell 3, and the bent part 510 ' penetrates through the guide rod guide groove 301, extends out of the cleaning shell 3 and is connected with a rotating connecting rod 55 '. A waterproof cover 34 covering the guide bar guide groove 301 is fixed in the cleaning case 3. The lower end of the guide rod 51 'is fixed with a magnet fixing seat 54', the magnet fixing seat 54 'is fixed with a first magnetic member 53', and the first magnetic member 53 'is sealed by a magnet fixing cover 56'.

The rotation link 55' is located outside the cleaning housing 3 and is hinged to the rear sidewall of the cleaning housing 3. Wherein, the rear side wall surface of the cleaning housing 3 is provided with a third hinge shaft 33, one end of the rotating connecting rod 55 'is provided with a shaft hole 551', and the third hinge shaft 33 passes through the shaft hole 551 ', so that the rotating connecting rod 55' can rotate along the third hinge shaft 33. The other end of the rotation link 55 'is provided with a guide bar mounting hole 553', the guide bar mounting hole 553 'is a long bar-shaped hole, and the bent portion 510' of the guide bar 51 'passes through the guide bar mounting hole 553'. The third hinge shaft 33 and the bending portion 510 ' are both provided with circular ring slots, and the stop washer 58 ' is installed in the circular ring slots of the third hinge shaft 33 and the guide rod 51 ', so as to play a role in positioning the rotating connecting rod 55 ' and prevent the rotating connecting rod 55 ' from falling off.

The rotation link 55 'is provided at the middle thereof with a guide cylinder 552', and the lower end of the transmission rod 57 'is inserted into the guide cylinder 552'. When the door body 4 is rotated and closed, the gear 43 rotates along with the door body, and the transmission rod 57 'is driven to move downwards through the transmission of the gear 43 and the rack, the transmission rod 57' drives the guide cylinder 552 'to move downwards, so that the rotating connecting rod 55' rotates around the third hinge shaft 33 at one end, and the other end of the rotating connecting rod 55 'rotates downwards, and drives the guide rod 51' and the first magnetic member 53 'fixed on the guide rod 51' to move downwards.

The rotation link 55 ' is provided with a first spring fixing portion 554 ', and the first spring fixing portion 554 ' is located between the shaft hole 551 ' and the guide bar mounting hole 553 '. The cleaning case 3 is provided with a second spring fixing portion 302, and one end of the return spring 52 ' is fixed to the first spring fixing portion 554 ' of the rotation connecting rod 55 ' and the other end is fixed to the second spring fixing portion 302 of the cleaning case 3. The return spring 52 ' is constantly kept in a stretched state, and when the door 4 is opened, the rotating link 55 ' is rotated upward around the third hinge shaft 33 by the tensile force of the return spring 52 ', and the guide rod 51 ' and the first magnetic member 53 ' are pulled back upward to a proper position.

As shown in fig. 13, 14 and 18, the distance from the guide rod mounting hole 553 'to the third hinge shaft 33 of the rotating link 55' is greater than the distance from the guide cylinder 552 'to the third hinge shaft 33 of the rotating link 55', and therefore, the longitudinal displacement of the guide rod 51 'is amplified relative to the longitudinal displacement of the transmission rod 57', so that the guide rod 51 'can drive the first magnetic member 53' to be separated from the detection range of the reed switch when the door 4 is opened by a small angle, and the detection sensitivity and accuracy of the door switch detection device 11 are improved. The position of the guide cylinder 552 'on the rotating connecting rod 55' may depend on the stroke magnification.

Example four:

the present embodiment provides a dishwasher, which is mainly different from the third embodiment in a transmission structure between the door 4 and the rotating connecting rod 55'.

In this embodiment, as shown in fig. 19 to 21, the motion input means includes a transmission lever 57 ', and the transmission lever 57 ' is connected to the rotating link 55 '. The rotating connection portion 41 of the door body 4 is provided with a rotating pressing portion 44, and the rotating pressing portion 44 is located at the upper end of the transmission rod 57'.

During the process of rotating and closing the door body 4, the rotating pressing portion 44 can rotate downward under the driving of the rotating connection portion 41, and press the transmission rod 57 ' downward, the transmission rod 57 ' can drive the rotating connection rod 55 ' to rotate downward around the third hinge shaft 33, and the rotating connection rod 55 ' drives the guide rod 51 ' and the first magnetic member 53 ' on the guide rod 51 ' to displace downward. In the process of opening the door body 4 by rotation, the rotation pressing portion 44 can rotate upward under the driving of the rotation connecting portion 41, and under the elastic force of the return spring 52 ', the rotation connecting rod 55 ' rotates upward around the third hinge shaft 33, so that the transmission rod 57 ' moves upward, and at the same time, the rotation connecting rod 55 ' drives the guide rod 51 ' and the first magnetic member 53 ' on the guide rod 51 ' to move upward.

The distance of the transmission rod 57 ' from the third hinge axis 33 of the swivel connection rod 55 ' is smaller than the distance of the guide rod 51 ' from the third hinge axis 33, so that the longitudinal displacement of the guide rod 51 ' is amplified relative to the longitudinal displacement of the transmission rod 57 '. Therefore, when the door body 4 is opened at a small angle, the guide rod 51 'can drive the first magnetic part 53' to be separated from the detection range of the reed switch, and the detection sensitivity and accuracy of the door body switch detection device 11 are improved.

In the description of the present invention, the terms "mounted", "fixed", etc. should be understood in a broad sense, for example, "fixed" may be non-detachably fixed, may also be detachably fixed, or may be integrally fixed; the fixation can be direct or indirect through an intermediate medium. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.

The above embodiments are merely exemplary embodiments of the present invention, which are described in detail and specific, and the content is only the embodiments adopted for the understanding of the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A dish washer comprises a machine body and a water tank, wherein a cleaning cavity with an opening at the upper end is arranged in the water tank, a door body capable of being opened and closed is covered at the opening of the cleaning cavity, the dish washer is characterized by further comprising a linkage mechanism for realizing linkage when the door body is opened and closed and a door body opening and closing detection device for detecting the opening and closing state of the door body,

2. The dishwasher of claim 1, wherein the motion input component and the motion output component are longitudinally movable longitudinally moving components;

3. The dishwasher of claim 2, wherein the multi-stage linkage arrangement is comprised of two articulated linkage assemblies, each articulated end-to-end by a plurality of linkages, the first linkage being connected to the wall of the wash chamber by a sliding fit of a strut and a chute.

4. The dishwasher of claim 1, wherein the motion input component and the motion output component are longitudinally movable longitudinally moving components;

5. The dishwasher of claim 1, wherein the linkage mechanism further comprises a reset member, the motion input member is movable in a first direction by the door body, and the reset member resets the motion input member and the motion output member in a reverse motion.

6. The dishwasher of claim 5, wherein the reset element comprises a resilient reset element, wherein:

7. The dishwasher according to claim 5, wherein the movement output part is provided with a first magnetic member, the first magnetic member is a magnet, the door body switch detection device is a magnetic control switch, the magnetic control switch comprises a reed switch arranged at an upper portion of the machine body, and the reed switch is arranged to sense the magnet when the door body is in one of the open state and the closed state, and not to sense the magnet when the door body is in the other of the open state and the closed state.

8. The dishwasher of claim 7, wherein the reset member comprises the first magnetic member and a second magnetic member fixed to a wall of the washing chamber, and the movement output part is reset by a magnetic force between the first magnetic member and the second magnetic member.

9. The dishwasher of any one of claims 1 to 8, wherein a casing covering the linkage is fixed to the wash chamber;

10. The dishwasher according to any one of claims 1 to 8, wherein a washing housing is provided in the sump, the washing chamber is formed in the washing housing, the door body is covered on the washing housing, and the linkage mechanism is mounted on the washing housing; the door body is provided with a third magnetic part, the motion input part of the linkage mechanism is provided with a fourth magnetic part, and when the door body is opened and closed, the motion input part acts through the magnetic acting force between the third magnetic part and the fourth magnetic part.