CN211818746U - 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 cleaning machine using the door lock structure, the utility model has low requirement on electric control logic, when needing to lock, the lock rod moves down to press the ejection piece to move down, in the downward moving process of the ejection piece, the ejection piece drives the lock catch to rotate, the upper end of the lock catch is gradually matched with the lock hook and presses the lock hook downwards, the driving mechanism drives the limiting block to move towards the ejection piece and limit the position of the ejection piece, thus realizing locking; when the unlocking is needed, the driving mechanism drives the limiting block to move to cancel the position restriction on the ejection piece, and at the moment, the lock rod can move upwards under the driving of the door body to realize the unlocking; the whole process is simple and reliable and is convenient to realize.

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.

Therefore, further improvements are needed for the current door lock structure.

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 low, the high lock structure that is used for electrical apparatus of reliability to automatically controlled logic requirement.

The utility model discloses the second 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 this cleaning machine is convenient for the switch door and can improve safety, the reliability of cleaning process.

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;

the first elastic piece is arranged in the shell, acts on the ejection piece and enables the ejection piece to always keep the upward movement trend;

the limiting block is positioned in the shell, can be arranged beside the ejection piece in a reciprocating manner and is used for limiting the upper position and the lower position of the ejection piece; and

and the driving mechanism is positioned in the shell and used for driving the limiting block to move back and forth.

In the above scheme, the lower part of the ejector piece is provided with a convex block with a width larger than that of the ejector piece, the limiting block can be arranged on the first side of the ejector piece in a transversely moving mode, the convex block is located below the limiting block in a state, and the limiting block moves towards the direction close to the ejector piece so that the lower wall face of the limiting block is abutted against the upper wall face of the convex block. By adopting the structure, when the lower wall surface of the limiting block is abutted against the upper wall surface of the lug, the ejector piece can be limited at the locking position; when the limit block does not limit the ejector, the ejector can move upwards.

Preferably, actuating mechanism includes slider and driving piece, the slider can transversely move and locate ejecting one side and with stopper synchronous motion, the driving piece is located slider one side and is used for driving slider lateral shifting. The slider is connected and the two synchronous motion with the stopper, can drive stopper lateral shifting when driving piece drive slider lateral shifting to the realization is spacing to the ejector under the locking state, cancels spacing to the ejector under the state of unblanking.

Preferably, the slider is provided with a positioning groove capable of restricting the slider at the end position of the moving stroke, one side of the ejector is provided with a positioning needle capable of being matched with the positioning groove so as to limit the position of the slider, and one end of the positioning needle can be inserted into the positioning groove in a sliding manner. By adopting the structure, after the ejection piece moves downwards, the sliding block moves leftwards to the left end of the moving stroke of the sliding block, at the moment, the positioning needle is matched with the positioning groove to restrain the sliding block, and the limiting state of the limiting block on the ejection piece is kept, namely the locking state of the door lock structure is maintained; when the door needs to be opened, namely the ejection piece moves upwards, the sliding block moves rightwards to the right end of the moving stroke of the sliding block, at the moment, the positioning needle is matched with the positioning groove to restrain the sliding block, the limiting state of the limiting block on the ejection piece is cancelled, namely the ejection piece is allowed to move upwards, and therefore unlocking is achieved.

In each of the above schemes, the housing is provided with a third elastic element capable of keeping the slider moving towards the direction close to the ejector, the driving element is an electromagnetic assembly, the electromagnetic assembly at least comprises a coil and an iron core capable of retracting under the energized state of the coil, and the outer end of the iron core is connected with the slider and can provide a pulling force for the slider to overcome the third elastic element. Adopt above-mentioned structure, the slider right side is located to the electromagnetic component, and when the coil switched on, the iron core retracted right, can pull the slider and moved right, to the utility model discloses a lock structure, the circular telegram in the twinkling of an eye of above-mentioned electromagnetic component discontinuity not only can drive the slider and move right, and drive slider and spacing piece remove to realize spacing whether to the ejector part, can also trigger the pilot pin and remove the both ends and the constant head tank cooperation of stroke at the slider, switch the direction of sliding of pilot pin in the constant head tank, thereby realize before locking and unblock that spacing piece removes triggering whether.

Preferably, at least part of the positioning needle is arranged perpendicular to the positioning groove, the positioning groove at least has a slide way which only allows the positioning needle to slide in the positioning groove in a single direction, one end of the slide way, which is close to the ejector, is formed with a first limiting point which can be matched with the positioning needle in an unlocked state for limiting, and one end of the slide way, which is far away from the ejector, is formed with a second limiting point which can be matched with the positioning needle in a locked state for limiting. A one-way slideway is arranged in the positioning groove, so that the positioning needle can be conveniently switched between a first limiting point and a second limiting point, and the switching between unlocking and locking states is realized.

Preferably, the first limit point and the second limit point are arranged at intervals, a limit bump is arranged between the first limit point and the second limit point, the positioning groove is provided with a first slideway which bypasses the first side of the limit block and communicates the first limit point with the second limit point, and a second slideway which bypasses the second side of the limit block and communicates the first limit point with the second limit point, and the first slideway, the first limit point, the second slideway and the second limit point are connected end to jointly enclose the slideway. The structure is convenient to be matched with the positioning needle to realize the one-way sliding of the positioning needle.

Preferably, along the sliding direction of the positioning needle in the slideway, the slopes of the first slideway and the second slideway are gradually increased, and steps which can enable the slopes of the corresponding slideways to be steeply reduced are arranged at positions close to the first limit point and the second limit point. The slope setting of first slide, second slide is convenient for realize its one-way slip with the pilot pin cooperation, and the step arrangement has not only guaranteed that the pilot pin can only one-way slip, can carry out interim restraint to the position of pilot pin at first spacing point, second spacing point moreover.

Preferably, a first step which is steeply reduced is formed near the end of the first slideway, a second step which is steeply reduced is formed at the joint of the end of the first slideway and the first limit point, a third step which is steeply reduced is formed at the joint of the first limit point and the starting end of the second slideway, and a fourth step which is steeply reduced is formed at the joint of the end of the second slideway and the second limit point. The structure further ensures the unidirectional sliding track of the positioning needle and the restraining force on the positioning needle at the first limit point and the second limit point.

Preferably, the end face of the limiting block, which is close to the ejecting part, is recessed backwards to form a limiting face which can abut against the positioning pin so as to limit the position of the locking plate in the unlocking state. The structure is matched with the steps to realize the restraint effect of the first limit point on the positioning needle.

Preferably, the slide way extends from the second limit point to a direction far away from the ejection part to form a limit groove for clamping the positioning pin, and a limit table capable of abutting against the positioning pin is arranged on the outer side of the limit groove. The structure can improve the restraint force to the positioning pin in the locking state.

Preferably, the tail end of the first slide way and the starting end of the second slide way respectively extend towards the direction close to the ejection piece so as to form a Y-shaped structure together with the slide way and the limiting groove. The tail end of the first slide way and the starting end of the second slide way are horizontally arranged towards the part extending in the direction close to the ejection piece. The structure can provide a certain yielding space for the positioning needle when the track is converted, so that the motion track of the positioning needle is matched with the transverse front-back moving process of the sliding block more stably and smoothly.

In order to facilitate installation and assembly, the first end of the positioning needle extends forwards and backwards and extends into the slideway to be matched with the slideway in a guiding manner, and the second end of the positioning needle is restrained on the shell through a fourth elastic piece.

Preferably, the housing is provided with a boss arranged corresponding to a side portion of the slider, the boss is provided with a mounting hole which is through from top to bottom, the second end of the positioning pin is bent downward and inserted into the mounting hole, the first end of the fourth elastic member is buckled on the boss and presses and holds the second end of the positioning pin on the housing, and the fourth elastic member is provided with a through hole through which the positioning pin passes so as to be exposed above the fourth elastic member. The shell is provided with a strip-shaped opening located on the outer side of the mounting hole, and the first end edge of the fourth elastic piece is inserted into the strip-shaped opening. Adopt such structure, be convenient for retrain the pilot pin on the casing, and allow the first end of pilot pin to take place certain elastic deflection, with better adaptation the utility model provides a constant head tank slide.

Preferably, the second end of the fourth elastic element is bent upwards and forwards to form a spring sheet capable of abutting against the rear side of the positioning pin, and the spring sheet enables the part extending forwards and backwards on the positioning pin to always keep a trend of moving backwards. The structure is beneficial to enabling the first end of the positioning needle to be tightly matched with the slideway, so that the positioning needle is prevented from being separated from the slideway.

As an improvement, be provided with the micro-gap switch with the total controller signal of electricity connection of cleaning machine on the casing, the below of stopper is located to this micro-gap switch's trigger piece, open the bottom of stopper have can be to being close to the ejecting direction remove and with to ejecting under the spacing state support press trigger piece, its move and relieve to ejecting under the spacing state and loosen the groove of stepping down of trigger piece to keeping away from ejecting direction. By adopting the structure, only when the door body is locked and the ejecting piece is locked by the limiting block, the ejecting piece can be abutted against the trigger piece, namely the microswitch is closed, and the cleaning work is allowed to be started; when the door body is opened, the ejection piece moves upwards, the limiting block moves rightwards, and the trigger piece is positioned in the abdicating groove, namely the microswitch is not closed and the cleaning work is not allowed to be started; the structure improves the safety of the whole door lock structure and the cleaning machine.

In each scheme, the door lock structure further comprises an operating mechanism capable of manually unlocking the door lock structure in a power-off state, and the operating mechanism at least comprises a pulling piece which can be connected with the limiting block and can drive the limiting block to move in the direction away from the ejecting piece. 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.

Preferably, the operating mechanism further includes a moving block and a fifth elastic member, the moving block is disposed on the housing and connected to the limiting block so as to be capable of moving back and forth perpendicular to the moving direction of the ejector, the fifth elastic member is disposed on the housing and keeps the moving block always moving toward the ejector, the pulling member is a pull rope having a first end connected to the moving block and a second end serving as a free end. The pull rope is pulled, the limiting block can be pulled rightwards, the limitation of the ejection piece is cancelled, and after the ejection piece moves upwards, the pull rope is loosened.

Preferably, the door lock structure further comprises a second elastic piece, a torsion spring is adopted, the second elastic piece comprises a middle spiral body and extension arms at two ends, the middle spiral body is freely suspended and located on one side departing from the C-shaped opening direction of the lock catch, the tail end of the first arm is connected with the outer edge of the middle part of the lock catch, and the tail end of the second arm is restrained on the shell.

The utility model provides an use cleaning machine that has above-mentioned lock structure for electric appliance, 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 the door body rotates the edge of connecting the port on the box, the casing is located on the box and the fore shaft is arranged up, the locking lever is located on the door body and is corresponded the fore shaft and arrange.

Preferably, the edge of the upper port of the box body is formed with a horizontal outward extending tray, the tray is provided with an opening corresponding to the locking port, and the upper end of the ejector piece is basically horizontally aligned with the opening in the door opening state.

Compared with the prior art, the utility model has the advantages of: the utility model has low requirement on the electric control logic, when the lock is needed to be locked, the lock rod moves downwards to press the ejection part to move downwards, the ejection part drives the lock catch to rotate in the downward moving process of the ejection part, so that the upper end of the lock catch is gradually matched with the lock hook and the lock hook is pressed downwards, the driving mechanism drives the limiting block to move towards the ejection part and limit the position of the ejection part, and the locking is realized; when the unlocking is needed, the driving mechanism drives the limiting block to move to cancel the position restriction on the ejection piece, and at the moment, the lock rod can move upwards under the driving of the door body to realize the unlocking; the whole process is simple and reliable and is convenient to realize.

Drawings

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

fig. 4 is a schematic structural diagram of a slider in an embodiment of the present invention;

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

FIG. 8 is a schematic view of an assembly structure of the positioning pin on the housing according to the embodiment of the present invention;

fig. 9 is a schematic structural view of a fourth elastic member according to an embodiment of the present invention;

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

fig. 11 is a schematic view of a part of the structure of the cleaning machine according to the embodiment of the present invention.

Detailed Description

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

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, first elastic component 10, second elastic component 20, 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, hasp 4, second elastic component 20, 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 first elastic member 10 is disposed in the housing 1, and acts on the ejector 3 to keep the ejector 3 always moving upward, and the first elastic member 10 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 second elastic member 20 is a torsion spring, and includes a middle spiral body 201 and extension arms at two ends, wherein the middle spiral body 201 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 202 is connected with the outer edge 402 at the middle of the latch 4, and the end of the second arm 203 is constrained on the housing 1. The second elastic member 20 can provide a force for the latch 4 to deflect around the rotating shaft 41, and the latch is matched with the ejector 3 to move up and down, so that the door locking and opening actions are realized.

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 'that can abut against the front side of the positioning pin 64, and the spring 402' keeps the forward and rearward extending portion of the positioning pin 64 moving backward all the time, 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.

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 second elastic piece 20, 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.

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 (23)

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;

the first elastic piece (10) is arranged in the shell (1) and acts on the ejector piece (3) to enable the ejector piece (3) to always keep the trend of moving upwards;

the limiting block (5) is positioned in the shell (1), can be arranged beside the ejection piece (3) in a reciprocating manner and is used for limiting the upper position and the lower position of the ejection piece (3); and

the driving mechanism is positioned in the shell (1) and used for driving the limiting block (5) to move back and forth.

2. The door lock structure for electric appliances according to claim 1, wherein: the lower part of liftout (3) is provided with width and is greater than lug (32) of liftout, stopper (5) can locate the first side of liftout (3) with lateral shifting, lug (32) are located under stopper (5) below state, thereby stopper (5) move to the direction that is close to liftout (3) makes its lower wall face offset with lug (32) upper wall face.

3. The door lock structure for electric appliances according to claim 2, wherein: the driving mechanism comprises a sliding block (61) and a driving piece (63), the sliding block (61) can be arranged on one side of the ejection piece (3) in a transversely moving mode and can move synchronously with the limiting block (5), and the driving piece (63) is arranged on one side of the sliding block (61) and is used for driving the sliding block (61) to transversely move.

4. The door lock structure for electric appliances according to claim 3, wherein: the sliding block (61) is provided with a positioning groove (62) capable of limiting the sliding block at the end position of a moving stroke, one side of the ejector (3) is provided with a positioning needle (64) capable of being matched with the positioning groove (62) so as to limit the position of the sliding block (61), and one end of the positioning needle (64) can be inserted into the positioning groove (62) in a sliding manner.

5. The door lock structure for electric appliances according to claim 4, wherein: the casing (1) is provided with a third elastic part (30) which enables the sliding block (61) to always keep moving towards the direction close to the ejecting part (3), the driving part (63) is an electromagnetic assembly, the electromagnetic assembly at least comprises a coil (631) and an iron core (632) which can retract under the energized state of the coil (631), and the outer end of the iron core (632) is connected with the sliding block (61) and can provide pulling force for the sliding block (61) to overcome the third elastic part (30).

6. The door lock structure for electric appliances according to claim 4, wherein: at least part of the positioning needle (64) is arranged perpendicular to the positioning groove (62), the positioning groove (62) at least has a slide way (620) only allowing the positioning needle (64) to slide in the positioning groove (62) in a single direction, one end, close to the ejector (3), of the slide way (620) is provided with a first limiting point (621) capable of being matched and limited with the positioning needle (64) in an unlocked state, and one end, far away from the ejector (3), of the slide way (620) is provided with a second limiting point (622) capable of being matched and limited with the positioning needle (64) in a locked state.

7. The door lock structure for electric appliances according to claim 6, wherein: the first limiting point (621) and the second limiting point (622) are arranged at intervals, a limiting bump (623) is arranged between the first limiting point and the second limiting point, the positioning groove (62) is provided with a first slide way (624) which bypasses the first side of the limiting bump (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 bump (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 the slide way (620).

8. The door lock structure for electric appliances according to claim 7, wherein: along the sliding direction of the positioning needle (64) in the slideway (620), the slopes of the first slideway (624) and the second slideway (625) are gradually increased, and steps which can enable the slope of the corresponding slideway (620) to be steeply reduced are arranged at positions close to the first limiting point (621) and the second limiting point (622).

9. The door lock structure for electric appliances according to claim 8, wherein: a first step (626) which is suddenly reduced is formed at the position close to the tail end of the first slide way (624), a second step (627) which is suddenly reduced is formed at the joint of the tail end of the first slide way (624) and a first limiting point (621), a third step (628) which is suddenly reduced is formed at the joint of the first limiting point (621) and the starting end of the second slide way (625), and a fourth step (629) which is suddenly reduced is formed at the joint of the tail end of the second slide way (625) and the second limiting point (622).

10. The door lock structure for electric appliances according to claim 8, wherein: the end face of the limiting convex block (623) close to the ejector piece (3) is recessed backwards to form a limiting surface (6231) which can abut against the positioning needle (64) so as to limit the position of the slide block (61) in an unlocking state.

11. The door lock structure for electric appliances according to claim 10, wherein: the sliding way (620) extends from the second limit point (622) to the direction far away from the ejection piece (3) to form a limit groove (6221) for the positioning needle (64) to clamp, and a limit table (6222) capable of abutting against the positioning needle (64) is arranged on the outer side of the limit groove (6221).

12. The door lock structure for electric appliances according to claim 10, wherein: the tail end of the first slide way (624) and the starting end of the second slide way (625) respectively extend towards the direction close to the ejector (3) so as to form a Y-shaped structure together with the slide way (620) and the limiting groove (6221).

13. The door lock structure for electric appliances according to claim 12, wherein: the tail end of the first slide way (624) and the starting end of the second slide way (625) extend towards the direction close to the ejector (3) and are horizontally arranged.

14. The door lock structure for electric appliances according to claim 4, wherein: the first end of pilot pin (64) extends and stretches into in slide (620) and with slide (620) direction cooperation around extending, the second end of pilot pin (64) passes through fourth elastic component (40) restraint on the casing.

15. The door lock structure for electric appliances according to claim 14, wherein: the shell (1) is provided with a boss (12) arranged corresponding to the side part of the sliding block (61), the boss (12) is provided with a mounting hole (121) which penetrates through the boss up and down, the second end of the positioning needle (64) is bent downwards and inserted into the mounting hole (121), the first end of the fourth elastic piece (40) is buckled on the boss (12) and presses the second end of the positioning needle (64) on the shell, and the fourth elastic piece (40) is provided with a through hole (401) through which the positioning needle (64) penetrates and is exposed above the fourth elastic piece (40).

16. The door lock structure for electric appliances according to claim 15, wherein: the shell (1) is provided with a strip-shaped opening (13) positioned on the outer side of the mounting hole (121), and the first end edge of the fourth elastic piece (40) is inserted into the strip-shaped opening (13).

17. The door lock structure for electric appliances according to claim 15, wherein: the second end of the fourth elastic element (40) is bent upwards and forwards to form an elastic sheet (402 ') which can be abutted against the rear side of the positioning pin (64), and the elastic sheet (402') enables the part extending forwards and backwards on the positioning pin (64) to always keep the trend of moving backwards.

18. The door lock structure for electric appliances according to claim 1, wherein: be provided with micro-gap switch (7) with the total controller signal of electricity of cleaning machine connection on casing (1), the below of stopper (5) is located in triggering piece (71) of this micro-gap switch (7), the bottom of stopper (5) is opened has can be its to be close to ejector member direction removal and with support under to ejector member limit state and press trigger piece (71), move and relieve offering groove (51) of stepping down of triggering piece (71) to keeping away from ejector member direction at it.

19. The door lock structure for electric appliances according to any one of claims 1 to 13, characterized in that: the door lock further comprises an operating mechanism (72) capable of manually unlocking the door lock structure in a power-off state, wherein the operating mechanism (72) at least comprises a pulling piece (721) which can be connected with the limiting block (5) and can drive the limiting block (5) to move in the direction away from the ejecting piece (3).

20. The door lock structure for electric appliances according to claim 19, wherein: the operating mechanism (72) further comprises a moving block (722), the moving block (722) can be arranged on the shell (1) in a manner of moving back and forth in a direction perpendicular to the moving direction of the ejecting piece (3) and is connected with the limiting block (5), the pulling piece (721) is a pull rope, the first end of the pull rope is connected with the moving block (722), and the second end of the pull rope is a free end.

21. The door lock structure for electric appliances according to any one of claims 1 to 13, characterized in that: still including second elastic component (20), adopt the torsional spring, including the extension arm at middle spirochaeta (201) and both ends, wherein middle spirochaeta (201) freely is unsettled and is located and deviates from one side of hasp (4) C shape opening direction, first arm end (202) with outward flange (402) at hasp (4) middle part are connected, and the end (203) of second arm is retrained on casing (1).

22. A cleaning machine with a door lock structure for an electric appliance according to any one of claims 1 to 21, 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.

23. The cleaning machine of claim 22, wherein: the edge of the port (81) on the box body (8) is provided with a bracket (811) which extends horizontally and outwards, the bracket (811) is provided with an opening (812) which is arranged corresponding to the locking notch (11), and the upper end of the ejector (3) is basically aligned with the opening (812) horizontally in the door opening state.

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