CN211818747U - Door lock structure for electric appliance and cleaning machine with door lock structure - Google Patents

Abstract

The utility model relates to a door lock structure for electric appliance and a cleaning machine applying the door lock structure, wherein the door lock structure comprises a shell, a lock rod, an ejection piece, a lock catch and a driving mechanism, when the door body of the utility model is closed, the ejection piece can be pressed downwards, the ejection piece drives the lower end of the lock catch to move downwards, so that the upper end of the lock catch of a C-shaped structure deflects towards the upper part of the ejection piece to be buckled with a C-shaped lock hook at the lower end of the lock rod, thereby realizing the self-locking of the door body; just the utility model discloses the structure relies on mechanical structure to realize, requires low, the reliability is high to automatically controlled logic, also is convenient for extend on utility model's basis design other functions, and the practicality is good.

Description

Door lock structure for electric appliance and cleaning machine with door lock structure

Technical Field

The utility model relates to a cleaning machine that is used for lock structure of electrical apparatus and uses to have this lock structure.

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.

Chinese patent "door lock device of a dish washer" with publication number CN208363855U discloses a structure, which is provided with a bolt jack at the front end of a lock body, a tongue piece of the bolt is inserted into the lock body from the bolt jack, grooves are provided on the left and right sides of the tongue piece, a micro switch is provided at the position opposite to the bolt in the lock body, a mandril of the micro switch is inserted into a mandril sliding groove and extends towards the bolt direction, and can contact with the tongue piece of the bolt; the left and right sides of the tongue piece of the lock body, which are positioned on the lock tongue, are respectively provided with a slide block, the end surface of the slide block, which is opposite to the tongue piece, is a bending surface, the bending surface of the slide block is mutually adaptive to the groove of the lock tongue, the other end of the slide block is a slide rod, and the slide rod is sleeved with a spring. When the door body and the dishwasher box body are relatively closed, the lock tongue is slidingly inserted into the groove formed at the end parts of the two sliding blocks, so that the door body is locked on the box body. Although the structure realizes the locking of the door body relative to the box body, the locking is realized only by the mutual limiting of the lock tongue and the sliding block, the pressing force which continuously exists between the door body and the box body does not exist, and when the temperature of an inner cavity of the dishwasher is higher in the use process, steam or high-temperature water can leak.

Chinese patent application publication No. CN109620090A, entitled "door opening and closing structure for dish washer, dish washer with the same, and door opening and closing method for dish washer," discloses a structure, the door locking assembly of which includes a first part and a second part, the first part is disposed on the sink, the second part is disposed on the door assembly, one of the first part and the second part is an electromagnet, and the other is an electromagnetic coil. When the dishwasher is in operation, the electromagnetic coil operates and attracts each other with the electromagnet, and when the dishwasher is out of operation, the electromagnetic coil stops operating or the electromagnetic coil operates and repels each other with the electromagnet. Although the structure enables the door body to be tightly sucked with the box body all the time in the running state, the structure depends on an electric control structure, if the dishwasher is powered off suddenly in the running process, heated steam and high-temperature water can overflow rapidly, and the stability is poor.

Therefore, the structure of the door lock used in the current cleaning machine is to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is to prior art's current situation, provides a lock structure for electrical apparatus that can realize the auto-lock when electrical apparatus closes the door.

The utility model discloses the second technical problem that will solve is to prior art's current situation, provides one kind and can make the door body compress tightly the lock structure that is used for the electrical apparatus to the electrical apparatus main part direction all the time after closing the door to effectively reduce the requirement to automatically controlled logic under the prerequisite of guaranteeing the reliability.

The utility model discloses the third technical problem that will solve is to prior art's current situation, provides an use the cleaning machine that has above-mentioned lock structure, and the sealing performance of this cleaning machine door body and box is good, stability is high.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a door lock structure for an electric appliance, characterized in that: comprises that

The shell is used for being connected with the electric appliance main body, and the top wall of the shell is provided with a lock port which is communicated up and down;

the upper end of the lock rod is used for being connected with the electric appliance door body, the lower end of the lock rod is provided with a C-shaped lock hook which can penetrate through the lock opening on the shell in a vertically moving mode, and can penetrate through the lock opening on the shell to be positioned in the shell in a door locking state, and can penetrate out of the lock opening and be positioned on the shell in an unlocking state;

the ejection piece is positioned in the shell, can be arranged below the locking port in a vertically moving mode, and has the top opposite to the lower end of the locking rod;

the lock catch is positioned in the shell, is of a C-shaped structure, and has an opening direction opposite to the opening direction of the C-shaped lock hook of the lock rod; the middle part of the lock catch can be rotatably arranged on the shell; the lower end of the lock catch is restrained on the side wall of the ejection piece; the upper end of the lock catch is positioned beside the ejection piece in the unlocking state, and under the action that the lock rod downwards presses the ejection piece in the door locking state, the upper end of the lock catch gradually deflects towards the lock rod along with the downward movement of the ejection piece until the upper end of the lock catch enters the opening of the C-shaped lock hook and is mutually buckled; and

and the driving mechanism acts on the ejecting piece or/and the lock catch and provides power for the cooperative action of the ejecting piece and/or the lock catch.

In the above scheme, the driving mechanism acts on the ejector to drive the ejector to move up and down, and the ejector further comprises a limiting mechanism to perform upper limiting or/and lower limiting on the ejector. By adopting the structure, the ejection piece can be conveniently driven to move upwards to open the door, and after the ejection piece moves downwards, the position of the ejection piece is limited by the limiting mechanism, so that the reliability after locking can be improved, and the door body is prevented from being opened.

Preferably, the drive mechanism comprises a spring disposed in the housing and resiliently compressed between the lower end of the ejector and the lower wall of the housing. This spring can provide the power that moves up for the liftout piece, and the convenience is convenient for realize opening the door, and on the other hand is favorable to stabilizing liftout piece upper end in the fore shaft, avoids water to pass through in the fore shaft splash shell.

As an improvement, the driving mechanism includes a first torsion spring acting on the latch, the first torsion spring includes a middle spiral body and extension arms at two ends, the middle spiral body of the first torsion spring is freely suspended and located at one side departing from the direction of the C-shaped opening of the latch, the tail end of the first arm of the first torsion spring is connected with the outer edge of the middle part of the latch, and the tail end of the second arm of the first torsion spring is constrained on the casing. By adopting the structure, under the door locking state, the upper end of the lock catch can be driven by the first torsion spring to always apply downward pressure to the lock hook, so that the door body is always pressed against the box body, and the sealing performance is improved.

In order to facilitate assembly, a rotating shaft which is close to the inner edge of the C-shaped structure is arranged on the side wall of the lock catch, and correspondingly, a shaft hole which can contain the rotating shaft in a rotating fit mode is arranged on the inner wall of the shell.

And the driving mechanism is further improved, the driving mechanism comprises a second torsion spring acting on the ejection piece, the second torsion spring comprises a middle spiral body and extension arms at two ends, the middle spiral body of the second torsion spring is freely suspended, the tail end of a first arm of the second torsion spring is constrained on the shell at the side part of the ejection piece, and the tail end of a second arm of the second torsion spring is constrained on the lower part of the ejection piece. If the second torsion spring is not arranged, when the door is opened, at the moment that the force applied to the lock catch by the first torsion spring is changed from downward overturning to upward overturning, upward impulsive force is given to the lock rod through the ejecting piece, so that the door body shakes, and the user experience is seriously influenced; and the second torsion spring is arranged, at the moment that the force applied to the lock catch by the first torsion spring is changed from downward overturning to upward overturning, the second torsion spring provides downward force to the ejecting piece, and most of the buffer force can be buffered, so that the door body is prevented from shaking. Above-mentioned second torsional spring has not only realized the elimination to the impulsive force that makes progress in the twinkling of an eye to first torsional spring power direction conversion, can also be under the state that the liftout piece moved down completely at door body locking state promptly, exert decurrent pulling force to the liftout piece, thereby with first elastic component cooperation, improve the door body and to the degree of compression of box, and then improve sealed effect, under the state that the liftout piece moved up completely is opened to the door body, exert ascending thrust to the liftout piece, with first elastic component cooperation, improve the leakproofness between liftout piece upper end and the fore shaft.

Preferably, the upper end of the ejector has an insert block which can be inserted into the locking notch, and the upper end face of the insert block is basically aligned with the upper edge of the locking notch in the fully upward moving state of the ejector; the periphery of the lower edge of the insert block is provided with a sealing ring which can be matched and sealed with the lower edge of the locking opening. The structure can effectively improve the sealing performance of the lock opening under the opening state of the door body, and avoids the adverse effect on the door lock component caused by the water splashed into the shell from the lock opening.

In each of the above solutions, the sidewall of the upper portion of the ejector is provided with a notch into which the lower end of the C-shaped structure of the lock catch can be inserted, and the lower end of the C-shaped structure of the lock catch abuts against the upper wall surface of the notch. Adopt such structure, can retrain the first end of hasp in the breach, because the inward flange of hasp rotates through the pivot to be connected on the casing, and the outward flange of hasp is connected with first elastic component and can take place the swing around the pivot, consequently, when the ejecting piece moves down, the wall can support and press the first end of hasp to move down on the breach to make the second end of hasp overturn to ejecting piece top, and then with the latch hook lock.

The utility model discloses in, the lower part of liftout is provided with the lug, one side of liftout is provided with can round trip movement and can be to the stopper that liftout moving state offset with the lug upside down. The movement of the limiting block can be realized by various driving mechanisms, and the limiting block can move towards the direction of the ejection piece and abut against the upper side of the convex block when the door body is closed relative to the box body, namely the ejection piece moves downwards completely, so that the door body is locked and is not allowed to be opened; after the cleaning process is finished, the limiting block can move away from the ejection piece, the limiting of the convex block is cancelled, and at the moment, the ejection piece can move upwards to allow the door body to be opened.

The utility model provides an use cleaning machine that has above-mentioned lock structure, includes the box and the door body, the box has the washing chamber and communicates in the last port at this washing chamber top, the edge of door body rotates the edge of connecting port on the box, its characterized in that: the shell is arranged on the box body, the locking opening is arranged upwards, and the locking rod is arranged on the door body and corresponds to the locking opening.

Preferably, the side wall of the box body is provided with a vertically arranged ejector rod and a motor capable of driving the ejector rod to move up and down, the upper end of the ejector rod is arranged corresponding to the lower wall surface of the door body, and the motor drives the ejector rod to move upwards to provide upward thrust for the door body in a door opening state. The structure can realize automatic door opening.

Compared with the prior art, the utility model has the advantages of: when the door body of the utility model is closed, the ejecting piece can be pressed downwards, the ejecting piece drives the lower end of the lock catch to move downwards, so that the upper end of the lock catch of the C-shaped structure deflects towards the upper part of the ejecting piece and is buckled with the C-shaped lock hook at the lower end of the lock rod, and the self-locking of the door body is realized; just the utility model discloses the structure relies on mechanical structure to realize, requires low, the reliability is high to automatically controlled logic, also is convenient for extend on utility model's basis design other functions, and the practicality is good.

Drawings

Fig. 1 is a schematic view (unlocked state) of a door lock structure according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of the hidden portion of the housing and the fourth elastic member shown in FIG. 1;

fig. 3 is a schematic view (locked state) of the door lock structure according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a slider in embodiment 1 of the present invention;

fig. 5 is a schematic structural view of the slider at another angle in embodiment 1 of the present invention;

fig. 6 is a schematic view of the matching state of the positioning pin and the slider in the unlocking state of embodiment 1 of the present invention;

fig. 7 is a schematic view of the fitting state of the positioning pin and the slider in the locked state according to embodiment 1 of the present invention;

fig. 8 is a schematic view of an assembly structure of the positioning pin on the housing in embodiment 1 of the present invention;

fig. 9 is a schematic structural view of a fourth elastic member in embodiment 1 of the present invention;

fig. 10 is a schematic view of a matching structure of the operating mechanism and the slider in embodiment 1 of the present invention;

fig. 11 is a schematic view of a part of the structure of a cleaning machine in embodiment 1 of the present invention;

fig. 12 is a schematic structural view (door unlocked state) of embodiment 2 of the present invention;

fig. 13 is a schematic structural view (door locking state) of embodiment 2 of the present invention;

fig. 14 is a schematic structural view of embodiment 2 of the present invention (the door body is switched from the locked state to the unlocked state);

fig. 15 is a schematic structural view of the ejector according to embodiment 2 of the present invention;

fig. 16 is a schematic view of a part of the structure of a cleaning machine according to embodiment 2 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1:

the door lock structure of the present embodiment is used for locking any door body and any box body, and the present embodiment takes a water tank type cleaning machine as an example for description. As shown in fig. 11, the cleaning machine of the present embodiment includes a box 8 and a door 9, the box 8 has a washing chamber and an upper port 81 communicating with the top of the washing chamber, and an edge of the door 9 is rotatably connected to an edge of the upper port 81 of the box 8.

This embodiment is used for door lock structure of electrical apparatus includes casing 1, locking lever 2, ejecting 3, hasp 4, second elastic component 20, first elastic component 10, stopper 5 and actuating mechanism, locking lever 2 is vertical to be installed on the lower wall of a body 9 and near the edge and arranges, casing 1, ejecting 3, first elastic component 10, second elastic component 20, hasp 4, stopper 5 and actuating mechanism etc. all install on the lateral wall of box 8 and be close to the top edge arrangement of box 8. The top wall of the shell 1 is provided with a lock port 11 which is communicated up and down; the locking lever 2 has a C-shaped locking hook 21 at the lower end, the locking hook 21 can move up and down to pass through the locking opening 11 on the housing 1, and can pass through the locking opening 11 on the housing 1 to be located in the housing 1 in the door locking state, and can pass through the locking opening 11 and be located on the housing 1 in the unlocking state. The ejector 3 is located in the housing 1 and can be vertically moved under the locking notch 11, a bracket 811 horizontally extending outwards is formed at the edge of the port 81 on the box 8, an opening 812 corresponding to the locking notch 11 is formed on the bracket 811, and the upper end of the ejector 3 is basically horizontally aligned with the opening 812 in the door opening state. The top of the ejector 3 is opposite to the lower end of the lock rod 2. The lock catch 4 is positioned in the shell 1, is of a C-shaped structure, and has an opening direction opposite to the opening direction of the C-shaped lock hook 21 of the lock rod 2; the middle part of the lock catch 4 is rotatably arranged on the shell 1. The lower end of the catch 4 is constrained to the side wall of the ejector 3. The upper end of the lock catch 4 is located beside the ejector 3 in the unlocking state, and under the action that the lock rod 2 downwardly presses the ejector 3 in the door locking state, the upper end of the lock catch 4 gradually deflects towards the lock rod 2 along with the downward movement of the ejector 3 until entering the opening of the C-shaped lock hook 21 and being mutually buckled. The second elastic member 20 is disposed in the housing 1, and acts on the ejector 3 to keep the ejector 3 always moving upward, and the second elastic member 20 of the present embodiment is a spring and is disposed below the ejector 3. The limiting block 5 is located in the shell 2, can be movably arranged on the side of the ejection part 3 to limit the upper position and the lower position of the ejection part 3. The driving mechanism is positioned in the shell 1 and used for driving the limiting block 5 to move back and forth.

The front side wall of the latch 4 is provided with a rotating shaft 41 arranged near the inner edge 401 of the C-shaped structure, and correspondingly, the inner wall of the housing 1 is provided with a shaft hole 12 capable of rotatably matching with the rotating shaft 41. The rear side wall or the right side wall of the upper part of the ejector 3 is provided with a notch 31 into which the lower end 410 of the C-shaped structure of the lock catch 4 can be inserted, and the lower end 410 of the C-shaped structure of the lock catch 4 is abutted against the upper wall surface of the notch 31. With such a structure, the lower end 410 of the latch 4 can be restrained in the notch 31, because the inner edge 401 of the latch 4 is rotatably connected to the housing 1 through the rotating shaft 41, and the outer edge 402 of the latch 4 can swing around the rotating shaft 41, when the ejector 3 moves downward, the upper wall surface of the notch 31 can press against the lower end 410 of the latch 4 to move downward, so that the upper end 420 of the latch 4 deflects upward from the ejector 3, and is engaged with the latch hook 21.

The first elastic member 10 is a torsion spring, and includes a middle spiral body 101 and extension arms at two ends, wherein the middle spiral body 101 is freely suspended and located at one side departing from the C-shaped opening direction of the latch 4, the end of the first arm 102 is connected with the outer edge 402 at the middle of the latch 4, and the end of the second arm 103 is constrained on the housing 1. The first elastic member 10 provides a force for the latch 4 to deflect around the rotating shaft 41, and cooperates with the ejector 3 to move up and down, so as to lock and unlock the door.

The 3 lower parts of liftout of this embodiment are provided with the lug 32 that the width is greater than the liftout, and stopper 5 can locate the right side of liftout 3 with lateral shifting, and lug 32 is located under the 5 below states of stopper, thereby stopper 5 moves to the direction that is close to liftout 3 and makes its lower wall face offset with lug 32 upper wall face, with the locking of liftout 3 in this position, the door body 9 is in unable open mode. The actuating mechanism of this embodiment includes slider 61 and driving piece 63, and 3 right sides, the 5 upsides of stopper of liftout piece are located to slider 61 with lateral shifting, are connected through the structure of joining in marriage of inserting of projection and recess between the lower wall of slider 61 and the stopper 5 upper wall to make slider 61 and stopper 5 realize synchronous movement when moving about. The driving member 63 is disposed at the right side of the slider 61 and connected to the right sidewall of the slider 61, thereby driving the slider 61 to move laterally left and right. Slider 61 is connected and the two synchronous motion with stopper 5, can drive stopper 5 lateral shifting when driving piece 63 drive slider 61 lateral shifting to it is spacing to ejector 3 to realize under the locking state, cancels spacing to ejector 3 under the state of unblanking.

Specifically, the slider 61 is provided with a positioning groove 62 capable of restraining the slider at an end position of a movement stroke, a positioning pin 64 capable of engaging with the positioning groove 62 to position the slider 61 is provided on the right side of the ejector 3 and the front side of the slider 61, and one end of the positioning pin 64 is slidably inserted into the positioning groove 62. The housing 1 is provided with a third elastic member 30 that can always keep the slider 61 moving toward the ejector 3, and the third elastic member 30 in this embodiment is a spring whose end abuts against the driving member 63 and the slider 61, respectively. The driving member 63 is an electromagnetic assembly having a coil 631 and an iron core 632 capable of retracting when the coil 631 is in an energized state, and the specific structure and operation principle of the electromagnetic assembly are the prior art and are not described herein. The outer end of the iron core 632 is connected to the right side wall of the sliding block 61, and when the coil 631 is energized, the iron core 632 retracts to provide a pulling force for the sliding block 61 to overcome the third elastic member 30 so as to move to the right.

In the present embodiment, a part of the positioning pin 64 is arranged perpendicular to the positioning slot 62, the positioning slot 62 has a slide 620 that only allows the positioning pin 64 to slide in one direction in the positioning slot 62, the left end of the slide 620 is formed with a first limit point 621 capable of cooperating with the positioning pin 64 in the unlocked state for limiting, and the right end of the slide 620 is formed with a second limit point 622 capable of cooperating with the positioning pin 64 in the locked state for limiting. A one-way slide 620 is provided in the positioning slot 62 to facilitate the switching of the positioning needle 64 between the first limit point 621 and the second limit point 622, thereby achieving the switching of the unlocking and locking states. The first limiting point 621 and the second limiting point 622 are arranged at left and right intervals, a limiting convex block 623 is arranged between the first limiting point 621 and the second limiting point 622, the limiting convex block 623 is shaped like a peach-heart, the tip of the limiting convex block 623 faces to the right, the positioning groove 62 is provided with a first slide way 624 which bypasses the first side of the limiting convex block 623 and communicates the first limiting point 621 with the second limiting point 622 and a second slide way 625 which bypasses the second side of the limiting convex block 623 and communicates the first limiting point 621 with the second limiting point 622, and the first slide way 624, the first limiting point 621, the second slide way 625 and the second limiting point 622 are connected end to jointly enclose a slide way 620. Along the sliding direction of the positioning needle 64 in the sliding channel 620, the slopes of the first sliding channel 624 and the second sliding channel 625 are gradually increased along the sliding direction of the positioning needle 64, and steps enabling the slopes of the corresponding sliding channels to drop steeply are arranged at positions close to the first limiting point 621 and the second limiting point 622. A first step 626 with a steep decrease is formed near the end of the first slide way 624, a second step 627 with a steep decrease is formed at the junction of the end of the first slide way 624 and the first limit point 621, a third step 628 with a steep decrease is formed at the junction of the first limit point 621 and the beginning of the second slide way 625, and a fourth step 629 with a steep decrease is formed at the junction of the end of the second slide way 625 and the second limit point 622. The slope of the first slide way 624 and the second slide way 625 facilitates the unidirectional sliding of the positioning pin 64 in cooperation, and the step arrangement not only ensures that the positioning pin 64 can only slide in one direction, but also temporarily restricts the positions of the positioning pin 64 at the first limit point 621 and the second limit point 622. The front end face of the limiting convex block 623 is recessed backwards to form a limiting face 6231 which can abut against the positioning pin 64 so as to limit the position of the slide block 61 in the unlocking state, and the structure and the steps are matched with each other to realize the constraint effect of the first limiting point 621 on the positioning pin 64. The slide 620 extends rightwards from the second limit point 622 to form a limit groove 6221 which can be clamped by the positioning pin 64 so as to limit the position of the slide block 61 in the locking state, and the right side of the limit groove 6221 is provided with a limit table 6222 which can be abutted against the positioning pin 64, so that the structure can improve the constraint force of the positioning pin 64 in the locking state. The end of the first sliding track 624 and the beginning of the second sliding track 625 respectively extend leftwards to form a Y-shaped structure together with the sliding track 620 and the limiting groove 6221. The end of the first slide channel 624 and the forward extending part of the start end of the second slide channel 625 are horizontally arranged, and the structure can provide a certain yielding space for the positioning pin 64 during track conversion, so that the motion track of the positioning pin 64 is more stably and smoothly matched with the forward and backward moving process of the sliding block 61.

In order to facilitate the installation and assembly of the positioning pin 64, a first end of the positioning pin 64 extends forwards and backwards and extends into the slide 620 to be in guiding fit with the slide 620, and a second end of the positioning pin 64 is constrained on the housing 1 through the fourth elastic member 40. The housing 1 is provided with a boss 12 ' disposed corresponding to the front wall surface of the slider 61, the boss 12 ' is provided with a mounting hole 121 ' penetrating in the front-rear direction, the second end of the positioning pin 64 is bent forward and inserted into the mounting hole 121 ', the fourth elastic member 40 is a metal sheet, the first end of the fourth elastic member 40 is buckled on the boss 12 ' and presses the second end of the positioning pin 64 in the front direction, and the fourth elastic member 40 is provided with a through hole 401 through which the positioning pin 64 passes and is exposed to the rear of the fourth elastic member 10. The housing 1 is formed with a strip-shaped opening 13 ' at a front side of the mounting hole 121 ', and the first end 403 of the fourth elastic member 40 is bent forward and inserted into the strip-shaped opening 13 '. The second end of the fourth elastic element 40 is bent rightward and rearward to form a spring 402 capable of abutting against the front side of the positioning pin 64, and the spring 402 keeps the front and rear extending portions of the positioning pin 64 always moving rearward, which is beneficial to make the first end of the positioning pin 64 and the slide 620 tightly fit to avoid the positioning pin 64 separating from the slide.

The casing 1 of this embodiment is provided with the micro-gap switch 7 that is connected with the total controller signal of cleaning machine, and the below of stopper 5 is located to this micro-gap switch 7's trigger piece 71, and the bottom of stopper 5 is opened has can move left and with to propping against under the ejector 3 spacing state and press trigger piece 71, move right and relieve to unclamp the groove 51 of stepping down of trigger piece 71 under the ejector 3 spacing state. The door lock structure further comprises an operating mechanism 72 capable of manually unlocking the door lock structure in a power-off state, wherein the operating mechanism 72 comprises a pulling member 721 capable of being connected with the limiting block 5 and driving the limiting block 5 to move rightwards. By adopting the structure, even if the power is cut off in the cleaning process or after the cleaning is finished, the door lock can be opened by utilizing the operating mechanism. The operating mechanism 72 further includes a moving block 722, the moving block 722 is movably disposed on the housing 1 to move left and right and back and forth and is connected to the limiting block 5 through the matching manner of the insertion column and the sliding groove, the pulling member 721 is a pulling rope having a first end connected to the moving block 722 and a second end pulling a free end. The pull rope is pulled, the limiting block 5 can be pulled rightwards, the limitation of the ejection piece 3 is cancelled, and after the ejection piece 3 moves upwards, the pull rope is loosened. The housing 1 may be further provided with a spring 723 for keeping the moving block 722 in a moving direction toward the ejector 3, so that the moving block 722 is kept in a reset state, thereby improving the overall compactness.

The door 9 is provided with a switch which can be connected with the controller through electric signals so as to control the action of the driving piece 63.

In the embodiment, the second elastic member 20 constitutes a driving mechanism for providing power to the ejector 3 and the latch 4, the second elastic member 20 can drive the ejector 3 to move up, and the hand door 9 can drive the ejector 3 to move down. The limiting block 5, the sliding block 61 and the driving piece 63 form a limiting mechanism for limiting the ejection piece 3 downwards.

When the door lock structure and the cleaning machine of the embodiment are used, when the door lock structure and the cleaning machine are in an unlocking state and need to be locked, the door is pressed downwards to be closed, the lock rod 2 is pressed downwards to press the ejection piece 3, the upper wall of the notch 31 is gradually pressed against the lower end 410 of the C-shaped structure to enable the lock catch 4 to rotate in the downward moving process of the ejection piece 3, and when the ejection piece 3 moves downwards to the lowest position, namely the door body 9 is closed completely, the upper end 420 of the C-shaped structure is matched with the lock hook 21 at the lower end of the lock rod 2 under the action of the first elastic piece 10, so that the lock rod 2 cannot; when a switch on the door body 9 is pressed, the coil 631 of the driving part 63 is instantly electrified, the iron core 632 retracts to enable the sliding block 61 to move rightwards, the positioning pin 64 enters the second slide way 625 from the first limit point 621 under the pushing of the sliding block 61, the limit of the sliding block 61 in an unlocking state is cancelled, the sliding block 61 moves leftwards under the elastic force of the third elastic part 30, the positioning pin 64 slides rightwards along the second slide way 625 until the limit block 5 limits the ejector 3, and at the moment, the positioning pin 64 just moves to the second limit point 622 to limit the position of the sliding block 61 in a locking state; in the locking state, the cleaning machine program is allowed to be started under the condition that the micro switch 7 is also triggered; after the cleaning procedure is completed, the coil 631 of the driving part 63 is instantly electrified, the iron core 632 retracts to enable the sliding block 61 to move rightwards, the positioning needle 64 is separated from the second limiting point 622 and slides into the first slide way 624, the limiting block 5 moves rightwards along with the sliding block 61, the positioning needle 64 gradually reaches the first limiting point 621 along the first slide way 624 to limit the position of the sliding block 61, at the moment, the limiting block 5 cancels the limiting of the ejection part 3, and the door body 9 is turned upwards to realize unlocking; in the unlocked state, the microswitch 7 is not triggered and the washer program is not allowed to turn on.

Example 2:

as shown in fig. 12 to 16, the present embodiment is different from the present embodiment in that:

the first elastic member of this embodiment is a first torsion spring 5 ', the first torsion spring 5 ' includes a middle spiral body 51 ' and extension arms at two ends, the middle spiral body 51 ' of the first torsion spring 5 ' is freely suspended and located at a side away from the C-shaped opening direction of the latch 4, the end of a first arm 52 ' of the first torsion spring 5 ' is connected with an outer edge 402 at the middle of the latch 4, and the end of a second arm 53 ' of the first torsion spring 5 ' is constrained on the housing 1. In the state where the C-shaped structure upper end 420 is located at the side of the ejector 3, the first torsion spring 5' keeps the lock catch 4 in a tendency of rotating clockwise about the rotating shaft 41; the first torsion spring 5' maintains the latch 4 in a counterclockwise rotation tendency about the rotating shaft 41 in a state where the C-shaped structure upper end 420 is located above the ejector 3 and engaged with the latch hook 21.

Specifically, as shown in fig. 13 and 14, a connecting portion 403 protruding from the latch 4 is disposed at an outer edge 402 of the middle portion of the latch 4, and the connecting portion 403 is provided with a connecting hole 404 inserted and connected with the end of the first arm 52 'of the first torsion spring 5'. The housing 1 is provided with a positioning hole 13 at a right side spaced from the outer edge 402 of the latch 4, the end of the second arm 53 'of the first torsion spring 5' is inserted into the positioning hole 13, and the middle spiral 51 'of the first torsion spring 5' is located above the right side of the latch 4. The center of the rotating shaft 41 is a, the joint of the tail end of the first arm 52 ' of the first torsion spring 5 ' and the latch 4 is B, the joint of the tail end of the second arm 53 ' of the first torsion spring 5 ' and the housing 1 is C, and B is located at the lower side of the straight line AC, so that the first torsion spring 5 ' keeps the upper end 420 of the latch 4 to deflect upwards; b is located on the upper side of the straight line AC, the first torsion spring 5' keeps the upper end 420 of the latch 4 to have a tendency to deflect to the side of the ejector 3; when ABC is located on a straight line, it is the critical state for the direction of force applied by the first torsion spring 5' to the latch 4 to be switched. By adopting the structure, the first torsion spring 5' applies forces in different directions to the locking body 4, the door body 9 and the box body 8 are kept to be compressed tightly in the door locking state, the sealing performance is improved, the door body 9 is provided with upward overturning force in the door opening state, and the user experience is improved.

The rear side wall or the right side wall of the upper part of the ejector 3 is provided with a notch 32 'into which the lower end 410 of the C-shaped structure of the lock catch 4 can be inserted, and the lower end 410 of the C-shaped structure of the lock catch 4 is abutted against the upper wall surface of the notch 32'. With such a structure, the lower end 410 of the latch 4 can be restrained in the notch 32 ', because the inner edge 401 of the latch 4 is rotatably connected to the housing 1 through the rotating shaft 41, and the outer edge 402 of the latch 4 is connected to the first torsion spring 5 ' and can swing around the rotating shaft 41, when the ejector 3 moves downward, the upper wall surface of the notch 32 ' can press the lower end 410 of the latch 4 to move downward, so that the upper end 420 of the latch 4 is turned over the ejector 3 and is further buckled with the latch hook 21.

In this embodiment, the second elastic member is a second torsion spring 6 ', the second torsion spring 6 ' includes a middle spiral body 61 ' and extension arms at two ends, the middle spiral body 61 ' of the second torsion spring 6 ' is freely suspended, the end of the first arm 62 ' of the second torsion spring 6 ' is constrained on the housing 1 at the side of the ejector 3, and the end of the second arm 63 ' of the second torsion spring 6 ' is constrained at the lower part of the ejector 3. The second torsion springs 6' are two and symmetrically arranged on both sides of the ejector 3. If the second torsion spring 6 'is not arranged, at the moment that the force applied to the lock catch 4 by the first torsion spring 5' is changed from downward overturning to upward overturning during door opening, the upward impact force is given to the lock rod 2 through the ejection piece 3, so that the door body 9 shakes, and the user experience is seriously influenced; after the second torsion spring 6 ' is provided, at the moment that the force applied to the latch 4 by the first torsion spring 5 ' is changed from downward turning to upward turning, the second torsion spring 6 ' applies a downward force to the ejector 3, and the force can buffer most of the buffer force, so that the door body 9 is prevented from shaking. Above-mentioned second torsional spring 6 'can not only realize the elimination to the impulsive force that makes progress in the twinkling of an eye to first torsional spring 5' power direction conversion, can also be in door body 9 locking state promptly under the state that the liftout piece 3 moved down completely, apply decurrent pulling force to the liftout piece 3, thereby with first torsional spring 5 'cooperation, improve the door body 9 and to the degree of compressing tightly of box 8, and then improve sealed effect, under the door body 9 open state promptly the liftout piece 3 completely shifts up the state, upward thrust is applied to the liftout piece 3, with first torsional spring 5' cooperation, improve the leakproofness between liftout piece 3 upper end and fore shaft 11.

As shown in fig. 14 and 15, the ejector 3 of this embodiment has an insert 31 'at its upper end that can be inserted into the locking notch 11, and in the fully upward-moving state of the ejector 3, the upper end face of the insert 31' is substantially aligned with the upper edge of the locking notch 11, and the periphery of the lower edge of the insert 31 'is provided with a sealing ring 311' that can be cooperatively sealed with the lower edge of the locking notch 11. The structure can effectively improve the sealing performance of the locking notch 11 under the opening state of the door body 9, and avoids the adverse effect on the door lock component caused by the water splashed into the shell 1 from the locking notch 11.

The side wall of the box body 8 of the embodiment is provided with a vertically arranged mandril 7 'and a motor 71' capable of driving the mandril 7 'to move up and down, the upper end of the mandril 7' is arranged corresponding to the lower wall surface of the door body 9, and the motor 71 'drives the mandril 7' to move upwards to provide upward thrust for the door body 9 in a door opening state.

In the housing 1 of this embodiment, a plurality of partition boards capable of dividing the space in the housing 1 into a plurality of independent cavities are disposed, for example, as shown in fig. 1, a first partition board 103 ' for dividing an upper cavity 101 ' and a lower cavity 102 ' is disposed in the middle of the housing 1, the locking opening 11 is communicated with the upper cavity 101 ', the locking buckle 4 and the first torsion spring 5 ' are disposed in the upper cavity 101 ', an opening for the ejection member 3 to pass through is formed in the first partition board 103 ', the upper portion of the ejection member 3 is located in the upper cavity 101 ', and the lower portion of the ejection member 3 is located in the lower cavity 102 '. The second torsion spring 6 ' and the sliding block 61 are positioned in the lower cavity 102 ', a drainage port 14 for draining accumulated water is formed in the lower wall surface of the shell 1, and the drainage port 14 is communicated with the lower cavity 102 '. The right part of the lower cavity 102 ' is provided with a second partition plate 104 ' which is basically vertically arranged, and the second partition plate 104 ' divides an independent small cavity 105 ' at the right side of the lower cavity 102 ' for installing a circuit control part structure of the driving mechanism so as to avoid water damage. Such structure provides better leakproofness for the lock structure part to avoid water stain to cause harmful effects to the lock.

The embodiment of the present invention is exemplified by a cleaning machine having a top-opening door, and therefore, the present invention uses the orientation words such as "up", "down", "left", "right", "side" in the specification and claims, but these orientation words only represent the relative position relationship, and are not limited to the absolute direction, such as "up" and "down" are not limited to the direction opposite to or consistent with the direction of gravity, but mainly to the direction of movement of the door.

In fact, the structure of the present invention can be applied to a cleaning machine having a side-opening door body and other electrical appliances, and at this time, the directional word in the text should be understood as an adaptive adaptation.

Claims (11)

1. A door lock structure for an electric appliance, characterized in that: comprises that

A shell (1) which is used for connecting with the main body of the electric appliance and the top wall of which is provided with a lock port (11) which is communicated up and down;

the upper end of the lock rod (2) is used for being connected with the electric appliance door body, the lower end of the lock rod is provided with a C-shaped lock hook (21) which can penetrate through a lock opening (11) on the shell in a vertically moving mode and can penetrate through the lock opening (11) on the shell to be positioned in the shell in a door locking state, and the lock rod can penetrate through the lock opening (11) to be positioned on the shell (1) in an unlocking state;

the ejection piece (3) is positioned in the shell (1), can be arranged below the locking port (11) in a vertically moving mode, and has the top opposite to the lower end of the locking rod (2);

the lock catch (4) is positioned in the shell (1), is of a C-shaped structure, and has an opening direction opposite to that of the C-shaped lock hook (21) of the lock rod; the middle part of the lock catch (4) can be rotatably arranged on the shell (1); the lower end (410) of the lock catch (4) is restrained on the side wall of the ejector (3); the upper end (420) of the lock catch (4) is positioned beside the ejector (3) in an unlocking state, and under the action that the lock rod (2) downwards presses the ejector (3) in a door locking state, the upper end (420) of the lock catch (4) gradually deflects towards the lock rod (2) along with the downward movement of the ejector (3) until entering the opening of the C-shaped lock hook (21) and being mutually buckled; and

and the driving mechanism acts on the ejector (3) or/and the lock catch (4) and provides power for the cooperative action of the ejector and the lock catch.

2. The door lock structure for electric appliances according to claim 1, wherein: the driving mechanism acts on the ejection piece (3) to drive the ejection piece (3) to move up and down, and the ejection mechanism further comprises a limiting mechanism to carry out upper limiting or/and lower limiting on the ejection piece (3).

3. The door lock structure for electric appliances according to claim 2, wherein: the driving mechanism comprises a spring which is arranged in the shell (1) and elastically compressed between the lower end of the ejector (3) and the lower wall of the shell (1).

4. The door lock structure for electric appliances according to claim 1, wherein: the driving mechanism comprises a first torsion spring (5 ') acting on the lock catch (4), the first torsion spring (5 ') comprises a middle spiral body (51 ') and extension arms at two ends, the middle spiral body (51 ') of the first torsion spring (5 ') is freely suspended and is positioned on one side away from the C-shaped opening direction of the lock catch (4), the tail end of a first arm (52 ') of the first torsion spring (5 ') is connected with an outer edge (402) of the middle part of the lock catch (4), and the tail end of a second arm (53 ') of the first torsion spring (5 ') is restrained on the shell (1).

5. The door lock structure for electric appliances according to claim 4, wherein: the side wall of the lock catch (4) is provided with a rotating shaft (41) which is arranged close to the inner edge (401) of the C-shaped structure, and correspondingly, the inner wall of the shell (1) is provided with a shaft hole (12) which can accommodate the rotating shaft (41) in a running fit manner.

6. The door lock structure for electric appliances according to claim 4, wherein: the driving mechanism comprises a second torsion spring (6 ') acting on the ejection piece (3), the second torsion spring (6 ') comprises a middle spiral body (61 ') and extension arms at two ends, the middle spiral body (61 ') of the second torsion spring (6 ') is freely suspended, the tail end of a first arm (62 ') of the second torsion spring (6 ') is restrained on the shell (1) at the side part of the ejection piece (3), and the tail end of a second arm (63 ') of the second torsion spring (6 ') is restrained at the lower part of the ejection piece (3).

7. The door lock structure for electric appliances according to any one of claims 1 to 5, characterized in that: the upper end of the ejector (3) is provided with an insertion block (31 ') which can be inserted into the lock opening (11), and the upper end surface of the insertion block (31') is basically aligned with the upper edge of the lock opening (11) when the ejector (3) is completely moved upwards; the periphery of the lower edge of the insert block (31 ') is provided with a sealing ring (311') which can be matched and sealed with the lower edge of the locking opening (11).

8. The door lock structure for electric appliances according to any one of claims 1 to 5, characterized in that: the side wall of the upper part of the ejector (3) is provided with a notch (32 ') into which the lower end (410) of the C-shaped structure of the lock catch (4) can be inserted, and the lower end (410) of the C-shaped structure of the lock catch (4) is propped against the upper wall surface of the notch (32').

9. The door lock structure for electric appliances according to any one of claims 1 to 5, characterized in that: the lower part of the ejection piece (3) is provided with a convex block (32), and one side of the ejection piece (3) is provided with a limiting block (5) which can move back and forth and can be abutted against the upper side of the convex block (32) in a moving state towards the ejection piece (3).

10. A cleaning machine with a door lock structure for an electric appliance according to any one of claims 1 to 9, comprising a box (8) and a door (9), wherein the box (8) has a washing chamber and an upper port (81) communicated with the top of the washing chamber, and an edge of the door (9) is rotatably connected to an edge of the upper port (81) of the box (8), characterized in that: casing (1) is located on box (8) and fore shaft (11) and arranges up, locking lever (2) are located on the door body (9) and correspond fore shaft (11) and arrange.

11. The cleaning machine of claim 10, wherein: the side wall of the box body (8) is provided with a vertically arranged ejector rod (7 ') and a motor (71') capable of driving the ejector rod (7 ') to move up and down, the upper end of the ejector rod (7') is arranged corresponding to the lower wall surface of the door body (9), and the motor (71 ') drives the ejector rod (7') to move up to provide upward thrust for the door body (9) in a door opening state.

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