CN112806937B - Door lock structure and cleaning machine with same - Google Patents

Abstract

The invention relates to a door lock structure and a cleaning machine applying the same, wherein the door lock structure comprises a shell with a lock hole; the top rod moves upwards and can penetrate through the lock hole, a lock opening is formed in the upper portion of the top rod, and the top of the top rod, which is located above the lock opening, is columnar; the lock catch can be rotatably arranged in the shell, is positioned above the lock hole and is provided with a lock groove, and the lock groove can limit the top of the ejector rod in the lock groove to lock the ejector rod; the first elastic piece keeps the locking groove in a downward trend; the locking plate can be arranged in the shell in a manner of moving back and forth relative to the lock hole, and a limiting structure is arranged between the locking plate and the lock catch; the second elastic piece keeps the locking plate always in the trend of moving forwards; and the driving mechanism is used for driving the locking plate to move backwards against the elastic force of the second elastic piece, so that the locking state of the lock catch and the ejector rod is released. The door lock structure has low dependence on electric control logic.

Description

Door lock structure and cleaning machine with same

Technical Field

The invention relates to a door lock structure and a cleaning machine applying the same.

Background

For the box body with the functional inner cavity, due to functional requirements, a door body capable of opening or covering the port is usually arranged at the port of the box body, and the door body needs to be locked relative to the box body in the using process of the box body.

For example, Chinese patent application No. CN200410043122.5, door opening and closing mechanism and dish washer having the same (application publication No. CN1550202A) discloses a structure comprising: a door rotatably disposed for opening and closing a dish inlet provided in the dish washing machine, and a rotation assisting mechanism for applying a rotation assisting force to the door in accordance with a rotation operation of the door; the rotation assisting mechanism applies a rotation assisting force to the door in a closing direction when the door is in a predetermined angle range from a closed state. Although the door body can be locked on the dish washing machine, the locking structure is complex, the dependence on electric parts and control modes is high, the action logic of the door lock is complex, faults are easy to occur, and the reliability is low.

As shown in the door lock device of the dish washer disclosed in the chinese utility model patent No. ZL201820198270.1 (publication No. CN 208551722U), the door lock device of the dish washer comprises a door lock component and a door lock bolt arranged on the inner door component of the dish washer; the door lock assembly is arranged on the door liner assembly; the door lock assembly is provided with a locking mechanism and a touch mechanism; the door lock bolt penetrates through the locking mechanism and is contacted with or separated from the trigger mechanism to transmit a door opening and closing signal.

However, the door lock device has the risk of untight door closing, because the bolt is inserted, when the door is in a closed state, the door lock spring is in a compressed state, and in a closed state, the bolt is in contact with the door lock switch rod, the force of the spring can be transmitted to the bolt, so that the bolt has the tendency of moving towards the direction away from the door lock induction support, and because the two sides of the door lock bolt are provided with the round-angle bosses, after external force is applied, the door lock bolt can be pulled out, even if the force applied by the spring is not enough to enable the door lock bolt to be completely separated, the tendency of moving the bolt towards the outside of the door lock induction support also exists, and the possibility of untight door closing is caused.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a door lock structure capable of ensuring the door to be tightly closed, aiming at the current situation of the prior art.

The second technical problem to be solved by the present invention is to provide a door lock structure with low requirement on electric control logic and high reliability, aiming at the current situation of the prior art.

The third technical problem to be solved by the invention is to provide a cleaning machine applying the door lock structure, which can ensure that a door is tightly closed, aiming at the current situation of the prior art.

In order to solve the first and second technical problems, the invention adopts the technical scheme that: a door lock structure characterized in that: comprises that

A lock hole penetrating the wall thickness is formed in the bottom wall of the shell;

the top rod can move up and down and is arranged below the shell, the top rod can move up and can penetrate through the lock hole, the upper part of the top rod is positioned in the shell, a lock opening is formed in the upper part of the top rod, and the top of the top rod, which is positioned above the lock opening, is columnar;

the lock catch is provided with a locking groove with a C-shaped opening, can be rotatably arranged in the shell and is positioned above the locking hole, and the locking groove can limit the top of the ejector rod in the locking groove so as to lock the ejector rod;

the first elastic piece acts on the lock catch to enable the locking groove to keep the downward trend of the C-shaped opening of the locking groove, so that the top of the ejector rod is allowed to be separated from the locking groove;

the locking plate is arranged in the shell in a manner of moving back and forth relative to the lock hole and is positioned at the rear side of the lock hole, and a limiting structure which can limit the rotating position of the lock catch under the forward moving state of the locking plate so as to keep the lock catch and the ejector rod in a locking state is arranged between the locking plate and the lock catch;

the second elastic piece is arranged in the shell and keeps the locking plate always in a trend of moving forwards; and

and the driving mechanism is arranged on the shell and used for driving the locking plate to move backwards against the elastic force of the second elastic piece, so that the locking state of the lock catch and the ejector rod is released.

In order to enable the driving mechanism to drive the locking plate to move backwards, the driving mechanism has a structure form that: the drive mechanism includes:

a power assembly;

the movable rod is arranged outside the shell or in the shell, extends along the front-back direction and can move back and forth relative to the shell, and the front part of the movable rod is connected with the output end of the power assembly in a driving way;

the swing arm extends in the left-right direction, the middle part of the swing arm is rotatably installed on a vertical first positioning shaft arranged in the shell, and two ends of the swing arm are respectively and rotatably connected with the rear part of the locking plate and the rear part of the movable rod;

the swing arm rotates under the action of forward or backward movement of the moving rod, so that the locking plate is driven to move backward or forward. Thus, when the movable rod moves backwards, the swinging arm can be driven to move backwards.

The power assembly can have various structural forms, for example, the power assembly is an electric push rod which drives the moving rod to move back and forth, although a non-electric control component can also be adopted, and preferably, the power assembly comprises

The driving shaft is positioned outside the shell and can rotate relative to the shell;

the first sliding block is arranged on a sliding way which is fixedly arranged relative to the shell and extends forwards and backwards in a sliding way and is connected with the front part of the movable rod;

and the connecting structure is connected between the driving shaft and the first sliding block and is used for converting the rotary motion of the driving shaft into the front and back translational motion of the first sliding block. Therefore, when the driving shaft rotates, the first sliding block can move back and forth through the connecting structure, and the first sliding block is connected with the moving rod to drive the moving rod to move back and forth.

The connecting structure can have various structural forms, preferably, the driving shaft extends along the left-right direction, the connecting structure comprises a rotating disc and a connecting rod, the rotating disc is coaxially connected with the driving shaft, a pivot shaft parallel to the driving shaft is eccentrically arranged on the end surface of the rotating disc, the connecting rod extends along the front-back direction, a pivot hole for inserting the pivot shaft is formed in the side surface of one end of the connecting rod, and the other end of the connecting rod is connected with the first sliding block. Because the rotating disc is eccentrically provided with the pin shaft, the connecting rod is connected with the pin shaft, and therefore the rotating disc can drive the connecting rod to move back and forth when rotating circumferentially, and further drive the first sliding block to move back and forth.

In order to ensure that the locking plate can move backwards under the driving of the driving mechanism, two sets of driving mechanisms are respectively arranged on the opposite sides of the shell. So even if one set of actuating mechanism became invalid, another set can also work, improves the reliability.

The other structural form of the driving mechanism is as follows: the driving mechanism is a driving rod extending in the front-back direction, the driving rod is connected with the locking plate, and the front end of the driving rod penetrates out of the shell to be used as a manual driving end. This actuating mechanism simple structure to in the unusual state such as drive shaft jamming or motor card are dead, outage, make to unblank safer, reliable.

In order to enable the ejector rod to move up and down without manual operation, the door lock structure further comprises a driving assembly capable of driving the ejector rod to move up and down, and the driving assembly is connected with the ejector rod in a driving mode.

The trigger assembly can have multiple structural forms, preferably, the trigger assembly further comprises a trigger assembly capable of enabling the driving assembly to drive the ejector rod to move downwards, the trigger assembly comprises a second sliding block, a third elastic piece and a trigger switch, the second sliding block can be transversely movably arranged on one side of the lock catch, an inclined surface which can gradually incline towards the lock catch from top to bottom and can be matched with the top edge of the ejector rod in a guiding mode is formed on the lower wall face of the first end of the second sliding block, the third elastic piece is arranged in the shell and enables the second sliding block to always keep a trend of moving towards the lock catch, the trigger switch is arranged at the second end of the second sliding block and is triggered when the second sliding block deviates from the lock catch in a moving state, and the trigger switch and the driving mechanism are in electrical signal connection with the same control unit. When the door is closed, the trigger assembly sends a signal to the driving assembly, so that the driving assembly drives the ejector rod to move downwards to tightly close the door.

In order to ensure that the ejector rod and the second sliding block can be in good guiding fit, the end surface of the ejector rod, which is abutted to the inclined surface of the second sliding block, is also an inclined surface, and the inclined surfaces of the ejector rod and the second sliding block are matched.

Preferably, the trigger switch comprises a magnetic control switch and a magnet, the magnet is embedded in the second sliding block, and the magnetic control switch is arranged on one side of the second sliding block.

Limit structure can have multiple structural style, preferably, the lockplate has the gag lever post that extends towards the hasp, corresponds, be equipped with on the hasp and support the stopper that presses the front end at the gag lever post of antedisplacement state, the terminal surface top-down that offsets with the gag lever post of stopper inclines towards the direction of keeping away from the gag lever post, stopper and gag lever post constitute jointly can prevent the limit structure of the C shape opening upset downwards of locking groove. Adopt above-mentioned structure to carry out spacingly to the position of hasp under the state of closing the door, prevent that it from taking place to rotate to keep the locking to the ejector pin, improve the reliability under the state of closing the door.

In order to guide and limit the back-and-forth movement track of the locking plate, a guide groove and a guide strip which are in sliding fit are arranged between the locking plate and the shell, and the guide strip extends along the front-and-back direction.

In order to facilitate the assembly of the lock catch, a transversely extending rotating shaft is arranged on the lock catch, and a shaft hole which can restrict the rotating shaft to rotate is formed in the shell.

Preferably, the pivot rear side is provided with the linking arm of backward extension, first elastic component is the torsional spring, torsional spring one end is retrained on the casing, the other end with the linking arm of hasp is connected. The structure can provide driving force for the lock catch to overturn downwards, and after the limit rod cancels the limit of the overturning position of the lock catch, the lock catch overturns downwards, so that the ejector rod is allowed to move downwards to realize the action of opening the door.

In order to solve the third technical problem, the technical scheme adopted by the invention is as follows: the cleaning machine comprises a box body and a door body, wherein the box body is provided with a washing cavity and an upper port communicated with the top of the washing cavity, one edge of the door body is rotatably connected to the edge of the upper port of the box body, an ejector rod can be arranged on the side wall of the box body in a vertically moving mode, the upper end of the ejector rod can penetrate through the edge of the box body, and the shell is arranged on the door body.

In the scheme, the side wall of the box body is also provided with a driving assembly capable of driving the ejector rod to move up and down.

Compared with the prior art, the invention has the advantages that: according to the door lock structure, the automatic locking and manual unlocking of the door lock structure can be realized through the matching of the ejector rod, the lock catch and other parts, when the door is closed, the ejector rod firstly moves upwards to be buckled with the lock catch and then moves downwards until the door body is completely closed, so that the risk of untight door closing is avoided; when the door is opened, the locking state of the door lock structure can be released only by pressing the button and lifting the door body upwards, the operation is easy, and the door lock structure almost adopts a purely mechanical structure, so that the requirement on electric control logic is low, and the reliability is high.

Drawings

Fig. 1 is a schematic structural diagram (in an unlocked state) of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in another direction (with the upper cover removed);

FIG. 3 is a schematic structural view (in a locked state) of an embodiment of the present invention;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of the latch of FIG. 3;

FIG. 6 is a schematic view of the locking plate of FIG. 3;

FIG. 7 is a schematic structural diagram of the first slider shown in FIG. 3;

FIG. 8 is a schematic view of the structure of the ejector pin and the lock catch in FIG. 3;

FIG. 9 is a schematic view of the door latch structure of FIG. 3 applied to a washing machine;

fig. 10 is a schematic view of the latch structure of fig. 9 engaged with a door body.

Detailed Description

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

As shown in fig. 1 to 10, the door lock structure of the present embodiment is used for locking any door body and any box body, and the present embodiment is described by taking a washing machine (such as a dishwasher) as an example. The cleaning machine of this embodiment includes box 8 and door 9, and box 8 has the washing chamber and communicates in the last port 81 at this washing chamber top, and the edge of door 9 rotates the edge of connecting at box 8 last port 81.

The door lock structure of the present embodiment includes a housing 1, a jack 2, a striker 4, a first elastic member 41, a lock plate 3, a second elastic member 30, a drive mechanism, a drive assembly 20, and a trigger assembly 7. The casing 1 is arranged on the door body 9, the casing 1 is formed by covering an upper cover 1a and a lower cover 1b, and a lock hole 11 penetrating through the wall thickness is formed in the bottom wall of the lower cover 1 b. The ejector rod 2 can be arranged on the side wall of the box body 8 in a vertically moving mode, and the upper end of the ejector rod 2 can penetrate through the edge of the box body 8 to be arranged.

The ejector rod 2 can be arranged below the shell 1 in a vertically moving mode, the ejector rod 2 can penetrate through the lock hole 11 in a vertically moving mode, the upper portion of the ejector rod 2 is located in the shell 1, a lock opening 21 is formed in the upper portion of the ejector rod 2, and the top portion 23, located above the lock opening 21, of the ejector rod 2 is columnar; the lock catch 4 is provided with a locking groove 40 with a C-shaped opening, the lock catch 4 can be rotatably arranged in the shell 1 and is positioned above the locking hole 11, and the C-shaped opening of the locking groove 40 can limit the top part 23 of the ejector rod in the locking groove to lock the ejector rod 2 so as to lock the door; the first elastic element 41 is a torsion spring arranged in the shell 1, and the torsion spring acts on the lock catch 4 to enable the locking groove 40 to keep the trend that the C-shaped opening of the locking groove faces downwards, so that the top part 23 of the mandril 2 is allowed to be separated from the locking groove 40; the locking plate 3 is arranged in the shell 1 and positioned at the rear side of the locking hole 11 in a manner of moving back and forth relative to the locking hole 11, and a limiting structure which can limit the rotating position of the lock catch 4 under the forward moving state of the locking plate 3 so as to keep the lock catch 4 and the ejector rod 2 in a locking state is arranged between the locking plate 3 and the lock catch 4; a second elastic member 30 provided in the housing 1 and keeping the lock plate 3 always in a tendency to move forward; the driving mechanism is provided on the housing 1 and drives the locking plate 3 to move backward against the elastic force of the second elastic member 30, so that the locked state of the striker 4 and the ejector 2 is released. The driving component 20 (such as a push rod motor and the like) is connected with the top rod 2 in a driving way and can drive the top rod 2 to move up and down and position; the trigger component 7 can output an operation signal to the driving component 20 under the door closing state to enable the mandril 2 to move up and down.

As shown in fig. 2 and 6, a guide groove 33 is provided on the lower end surface of the lock plate 3, a guide bar 14 extending in the front-rear direction is provided on the bottom wall of the lower cover 1b, the guide bar 14 is accommodated in the guide groove 33, and the sliding track of the lock plate 3 is guided and limited by the sliding engagement of the guide bar 14 and the guide groove 33.

As shown in fig. 4 and 6, the locking plate 3 has a limiting rod 31 extending towards the lock catch 4, correspondingly, a limiting block 44 is arranged on the lock catch 4, the locking plate 3 moves forward to the position below the limiting block 44 corresponding to the front end of the limiting rod 31, the limiting block 44 abuts against the limiting rod 31, the end face of the limiting block 44 abutting against the limiting rod 31 inclines from top to bottom towards the direction away from the limiting rod 31, and the limiting block 44 and the limiting rod 31 jointly form a limiting structure capable of preventing the locking groove 40 of the lock catch 4 from overturning (i.e. overturning downwards) towards the lock hole 11. The structure can limit the position of the lock catch 4 in a door closing state, and prevent the lock catch 4 from rotating, so that the locking of the locking notch 21 of the ejector rod 2 is kept, and the reliability in the door closing state is improved.

As shown in fig. 3, 4 and 5, for the convenience of assembly, the latch 4 has a laterally extending shaft 42 at the rear, and the housing 1 is provided with a shaft hole for rotatably restraining the shaft 42 therein. The rear side of the rotating shaft 42 is provided with a connecting arm 43 extending backwards, the first elastic element 41 comprises a middle spiral body and extending arms at two ends, wherein the middle spiral body is freely suspended and transversely arranged at one side departing from the direction of the C-shaped opening of the latch 4, the first arm 411 is constrained on the casing 1, and the tail end of the second arm 412 is connected with the connecting arm 43 of the latch 4. The structure can provide driving force for the lock catch 4 to overturn downwards, and after the locking piece 3 cancels the limitation of the overturning position of the lock catch 4, the lock catch 4 overturns downwards, so that the ejector rod 2 is allowed to move downwards to realize the door opening action.

As shown in fig. 2, 3 and 4, the driving mechanism includes a driving shaft 53, a connecting structure, a first slider 54, a moving rod 51 and a swing arm 52, the driving shaft 53 extends in the left-right direction, the driving shaft 53 is located outside the housing 1 and can rotate relative to the housing 1, and a poking piece 531 for poking the driving shaft 53 to rotate is formed on the outer peripheral wall of the driving shaft 53.

The connecting structure comprises a rotating disc 55 and a connecting rod 56, wherein the rotating disc 55 is coaxially connected with the driving shaft 53, a pivot 551 parallel to the driving shaft 53 is eccentrically arranged on the end surface of the rotating disc 55, the connecting rod 56 extends along the front-back direction, the front end side surface of the connecting rod 56 is provided with a pivot hole 561 for inserting the pivot 551 into, and the rear end of the connecting rod 56 is connected with the first slide block 54 so as to convert the rotating motion of the driving shaft 53 into the front-back translation motion of the first slide block 54.

The outer side of the shell 1 is provided with a slideway 13 extending in the front-back direction, a first slider 54 is slidably arranged on the slideway 13, a movable rod 51 is arranged on the outer side of the shell 1, the movable rod 51 extends in the front-back direction and can move back and forth relative to the shell 1, the first slider 54 is connected with the front part of the movable rod 51, a swing arm 52 extends in the left-right direction, the middle part of the swing arm 52 is rotatably arranged on a first vertical positioning shaft 12 arranged in the shell 1, two ends of the swing arm 52 are respectively rotatably connected with the rear part of the locking plate 3 and the rear part of the movable rod 51, and the swing arm 52 rotates under the action of the forward or backward movement of the movable rod 51, so that the locking plate 3 is driven to move backward or forward.

The user manually stirs the driving shaft 53 to rotate, so as to drive the rotating disc 55 to rotate, and further to enable the connecting rod 56 to move forward, in the process, the first slider 54 moves forward along with the connecting rod 56 synchronously, so that the moving rod 51 moves forward, and further the swing arm 52 rotates, so that the swing arm 52 pulls the locking plate 3 to move backward, and further, the limit of the limiting rod 31 of the locking plate 3 on the limiting block 44 of the locking buckle 4 is released.

As shown in fig. 3 and 6, in the present embodiment, the locking plate 3 is formed with a driving rod 57 extending in the front-back direction, a front end of the driving rod 57 penetrates through the housing 1 to be used as a manual driving end, and the driving rod can also be used as a driving mechanism, so that when the driving shaft is stuck or the motor is stuck or powered off, the driving rod 57 can be pushed backward to move the locking plate 3 backward, which is equivalent to an alternative scheme, so that the door lock structure is more reliable.

As shown in fig. 2, 3 and 4, the triggering assembly 7 includes a second slider 71, a third elastic member 72 and a triggering switch 73, the second slider 71 is disposed on one side of the latch 4 in a laterally movable manner, a slope 711 is formed on a lower wall surface of a right end of the second slider 71 and is gradually inclined toward an edge of the locking hole 11 from top to bottom, the slope 711 can be in guiding fit with a top edge of the top bar 2, the third elastic member 72 is a spring disposed in the housing 1 and keeps the second slider 71 always moving toward the latch 4, and the triggering switch 73 is disposed at a left end of the second slider 71 and is triggered when the second slider 71 moves away from the latch 4. In this embodiment, the end surface 22 of the push rod 2 that abuts against the inclined surface 711 of the second slider 71 is also inclined.

As shown in fig. 2 and 3, the trigger switch 73 of the present embodiment includes a magnetic switch 731 and a magnet 732, the magnet 732 is embedded in the second slider 71, and the magnetic switch 731 is disposed on the second slider 71 side. In the door opening state, the magnet 732 is dislocated from the magnetic control switch 731 and is located on the right side of the magnetic control switch 731, and in the door closing state, the magnet 732 moves to the left along with the second slider 71 and is opposite to the magnetic control switch 731, so that the magnetic control switch 731 is triggered to send a signal to the driving assembly 20.

The trigger switch 73 may also be an electro-optical switch, and both the trigger switch 73 and the driving assembly 20 are electrically or communicatively connected to a control unit of the washing machine (the control unit is a control circuit board of the washing machine).

When the door lock structure and the cleaning machine of the embodiment are used, when the door is opened and the door lock needs to be closed, the control unit controls the driving assembly 20 to work and drives the ejector rod 2 to move upwards, when the ejector rod 2 initially contacts the lock catch 4, the lock catch 4 is pushed to rotate upwards for a certain angle until the locking groove 40 limits the top 23 of the ejector rod 2 in the lock catch, and at the moment, the lock notch 21 and the ejector rod 2 are buckled with each other; in the process, the locking plate 3 moves forward under the elastic force of the second elastic element 30, the limiting rod 31 abuts against the limiting block 44, and in the process of moving the top rod 2 upward, the second slider 71 moves leftward under the pushing action of the top rod 2, when the locking notch 21 and the locking groove 40 of the lock catch 4 are mutually buckled, the trigger switch 73 is triggered, a signal is transmitted to the driving assembly 20, the driving assembly 20 drives the top rod 2 to move downward, and the door body 9 is locked, as shown in fig. 3 and 4;

when the door body 9 needs to be opened, the driving shaft 53 is rotated by pressing the shifting piece 531 on the driving shaft 53, the swinging arm 52 finally drives the locking plate 3 to move backwards through the driving of the connecting structure and the moving rod 51, the limiting rod 31 releases the limiting on the latch 4, at this time, the latch 4 can be turned downwards by a certain angle under the action of the first elastic piece 41, but the ejector rod 2 and the latch 4 are still in an un-separated state, then the door body 9 is lifted upwards, and the latch 4 can be turned downwards by a certain angle relative to the shell 1 until the ejector rod 2 is separated from the latch 4, so that unlocking is realized, as shown in fig. 1 and 2; in the process of disengaging the push rod 2 from the latch 4, the first sliding block 71 moves rightwards to reset under the action of the third elastic piece 72, the magnet 732 and the magnetic control switch 731 are dislocated, the signal transmitted to the driving assembly 20 by the trigger switch 73 disappears, and the driving assembly 20 drives the push rod 2 to move downwards.

Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Although the disclosed embodiments of the present invention are directed to a top opening sink washer, the structure of the present invention is also applicable to side opening sink washers and other appliances, and therefore these directional terms are intended to be illustrative only and should not be construed as limiting.

Claims (14)

1. A door lock structure characterized in that: comprises that

A shell (1), wherein a lock hole (11) penetrating the wall thickness is formed on the bottom wall of the shell;

the ejector rod (2) is arranged below the shell (1) in a vertically movable mode, the ejector rod (2) moves upwards and can penetrate through the lock hole (11) and the upper portion of the ejector rod (2) is located in the shell (1), a lock opening (21) is formed in the upper portion of the ejector rod (2), and the top (23), located above the lock opening (21), of the ejector rod (2) is columnar;

the lock catch (4) is provided with a locking groove (40) with a C-shaped opening, can be rotatably arranged in the shell (1) and is positioned above the locking hole (11), and the locking groove (40) can limit the top (23) of the ejector rod in the locking groove to lock the ejector rod (2);

a first elastic piece (41) acting on the lock catch (4) to enable the locking groove (40) to keep the trend that the C-shaped opening of the locking groove faces downwards, so that the top part (23) of the ejector rod (2) is allowed to be separated from the locking groove (40);

the locking plate (3) is arranged in the shell (1) and positioned at the rear side of the locking hole (11) in a manner of moving back and forth relative to the locking hole (11), and a limiting structure capable of limiting the rotating position of the lock catch (4) under the forward movement state of the locking plate (3) so as to keep the lock catch (4) and the ejector rod (2) in a locking state is arranged between the locking plate (3) and the lock catch (4);

a second elastic element (30) which is arranged in the shell (1) and keeps the locking plate (3) always moving forward; and

and the driving mechanism is arranged on the shell (1) and is used for driving the locking plate (3) to move backwards against the elastic force of the second elastic piece (30), so that the locking state of the lock catch (4) and the ejector rod (2) is released.

2. The door lock structure according to claim 1, wherein: the drive mechanism includes:

a power assembly;

the moving rod (51) is arranged on the outer side of the shell (1) or in the shell (1), extends along the front-back direction and can move back and forth relative to the shell (1), and the front part of the moving rod (51) is connected with the output end of the power assembly in a driving way;

the swing arm (52) extends in the left-right direction, the middle part of the swing arm is rotatably installed on a first vertical positioning shaft (12) arranged in the shell (1), and two ends of the swing arm (52) are respectively and rotatably connected with the rear part of the locking plate (3) and the rear part of the movable rod (51);

the swing arm (52) rotates under the action of forward or backward movement of the moving rod (51), so that the locking plate (3) is driven to move backward or forward.

3. The door lock structure according to claim 2, wherein: the power assembly comprises

A drive shaft (53) which is located outside the housing (1) and can rotate relative to the housing (1);

a first slider (54) slidably provided on a slide (13) fixedly provided with respect to the housing (1) and extending forward and backward, and connected to a front portion of the movable rod (51);

and a connecting structure connected between the driving shaft (53) and the first slider (54) for converting the rotational motion of the driving shaft (53) into the back and forth translational motion of the first slider (54).

4. The door lock structure according to claim 3, wherein: the connecting structure comprises a rotating disc (55) and a connecting rod (56), the rotating disc (55) is coaxially connected with the driving shaft (53), a pivot (551) parallel to the driving shaft (53) is eccentrically arranged on the end surface of the rotating disc (55), the connecting rod (56) extends in the front-back direction, one end side surface of the connecting rod (56) is provided with a pivot hole (561) for the pivot (551) to insert, and the other end of the connecting rod is connected with the first sliding block (54).

5. The door lock structure according to claim 2, wherein: the two sets of driving mechanisms are respectively arranged on the opposite sides of the shell (1).

6. The door lock structure according to claim 1, wherein: the driving mechanism is a driving rod (57) extending in the front-back direction, the driving rod (57) is connected with the locking plate (3), and the front end of the driving rod (57) penetrates through the shell (1) to be used as a manual driving end.

7. The door lock structure according to any one of claims 1 to 6, wherein: the device also comprises a driving component (20) capable of driving the ejector rod (2) to move up and down, wherein the driving component (20) is connected with the ejector rod (2) in a driving way.

8. The door lock structure according to claim 7, wherein: also comprises a trigger component (7) which can drive the mandril (2) to move downwards by the driving component, the trigger component (7) comprises a second sliding block (71), a third elastic piece (72) and a trigger switch (73), the second sliding block (71) can be transversely movably arranged on one side of the lock catch (4), an inclined surface (711) which can gradually incline to the direction far away from the lock catch (4) from top to bottom and can be in guiding fit with the top edge of the ejector rod (2) is formed on the lower wall surface of the first end of the second sliding block (71), the third elastic piece (72) is arranged in the shell (1) and enables the second sliding block (71) to always keep the trend of moving towards the direction of the lock catch (4), the trigger switch (73) is arranged at the second end of the second sliding block (71) and is triggered when the second sliding block (71) deviates from the lock catch (4) in a moving state, the trigger switch (73) and the driving mechanism (6) are in electric signal connection with the same control unit.

9. The door lock structure according to claim 8, wherein: the end face (22) of the ejector rod (2) which is abutted to the inclined face (711) of the second sliding block (71) is also an inclined face, and the inclined face are matched.

10. The door lock structure according to claim 8, wherein: the trigger switch (73) comprises a magnetic control switch (731) and a magnet (732), the magnet (732) is embedded in the second sliding block (71), and the magnetic control switch (731) is arranged on one side of the second sliding block (71).

11. The door lock structure according to any one of claims 1 to 6, wherein: lockplate (3) have gag lever post (31) that extend towards hasp (4), correspond, be equipped with on hasp (4) and support stopper (44) that press the front end at gag lever post (31) of antedisplacement state, the terminal surface top-down that offsets with gag lever post (31) of stopper (44) is towards the direction slope of keeping away from gag lever post (31), stopper (44) and gag lever post (31) constitute jointly and can prevent the C shape opening of locking groove (40) upset downwards limit structure.

12. The door lock structure according to any one of claims 1 to 6, wherein: a guide groove (33) and a guide strip (14) which are in sliding fit are arranged between the locking plate (3) and the shell (1), and the guide strip (14) extends in the front-back direction.

13. A cleaning machine applying the door lock structure according to any one of claims 1 to 12, comprising a box body (8) and a door body (9), wherein the box body (8) is provided with a washing cavity and an upper port communicated with the top of the washing cavity, one edge of the door body (9) is rotatably connected to the edge of the upper port of the box body (8), the ejector rod (2) is arranged on the side wall of the box body (8) in a vertically movable manner, the upper end of the ejector rod can penetrate through the edge of the box body (8), and the shell (1) is arranged on the door body (9).

14. The cleaning machine of claim 13, wherein: and the side wall of the box body (8) is also provided with a driving component (20) which can drive the mandril (2) to move up and down.

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