CN112112495B - Door lock structure and cleaning machine with same - Google Patents
Door lock structure and cleaning machine with same Download PDFInfo
- Publication number
- CN112112495B CN112112495B CN201910541295.6A CN201910541295A CN112112495B CN 112112495 B CN112112495 B CN 112112495B CN 201910541295 A CN201910541295 A CN 201910541295A CN 112112495 B CN112112495 B CN 112112495B
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- locking plate
- opening
- hook
- swing arm
- door lock
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- 238000004140 cleaning Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 14
- 230000001960 triggered effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 238000004851 dishwashing Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4251—Details of the casing
- A47L15/4257—Details of the loading door
- A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
The invention relates to a door lock structure and a cleaning machine applying the door lock structure, wherein the locking structure can be realized by a pure mechanical matching structure, and the requirement on electric control logic is low; when the locking is needed, the upper end of the ejector rod moves upwards and applies force to the sliding block, the sliding block can drive the locking plate to move backwards, the second hook of the swing arm is separated from the first hook on the locking plate, the swing arm swings rightwards under the action of the second elastic element, when the ejector rod moves downwards, the force applied to the sliding block is cancelled, the locking plate moves forwards under the action of the first elastic element, and the lock tongue is inserted into the lock opening of the ejector rod, so that the locking is completed; when the lock needs to be unlocked, the ejector rod moves upwards, the locking plate is driven to move backwards through the sliding block, the swinging arm keeps the tendency of swinging leftwards under the action of the second elastic piece until the first hook and the second hook are hung and buckled together, the position of the locking plate is limited, and at the moment, the lock rod can downwards exit from the lock hole to complete the unlocking; the whole process is simple and reliable and is convenient to realize.
Description
Technical Field
The invention relates to a door lock structure and a cleaning machine applying the same.
Background
For the box body with the functional inner cavity, due to functional requirements, a door body capable of opening or covering the port is usually arranged at the port of the box body, and the door body needs to be locked relative to the box body in the using process of the box body.
For example, Chinese patent application No. CN200410043122.5, door opening and closing mechanism and dish washer having the same (application publication No. CN1550202A) discloses a structure comprising: a door rotatably disposed for opening and closing a dish inlet provided in the dish washing machine, and a rotation assisting mechanism for applying a rotation assisting force to the door in accordance with a rotation operation of the door; the rotation assisting mechanism applies a rotation assisting force to the door in a closing direction when the door is in a predetermined angle range from a closed state. Although the door body can be locked on the dish washing machine, the locking structure is complex, the dependence on electric parts and control modes is high, the action logic of the door lock is complex, faults are easy to occur, and the reliability is low.
Therefore, further improvements are needed for the current door lock structure.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a door lock structure with low requirement on electric control logic and high reliability, aiming at the current situation of the prior art.
The second technical problem to be solved by the present invention is to provide a cleaning machine with the above door lock structure, aiming at the current situation of the prior art, the cleaning machine is convenient for opening and closing the door and improves the safety and reliability of the cleaning process.
The technical scheme adopted by the invention for solving the technical problems is as follows: a door lock structure characterized in that: comprises that
The mounting plate is provided with a lock hole;
the ejector rod is arranged below the mounting plate in a vertically movable manner, can penetrate through the lock hole when moving upwards, and is provided with a lock opening on the rear side wall;
the locking plate is arranged on the mounting plate and positioned on the rear side of the locking hole in a manner of moving back and forth relative to the locking hole, and a lock tongue capable of being inserted into the lock opening in a forward moving state of the locking plate is arranged at the front end of the locking plate;
the first elastic piece is arranged on the mounting plate and enables the locking plate to always keep a trend of moving towards the locking hole;
the locking plate is provided with a mounting opening which extends forwards and backwards and is used for mounting the swinging arm, the swinging arm can move forwards and backwards and can be arranged in the mounting opening in a left-right swinging mode in the moving process, a first hook is arranged on a first side wall, close to the swinging arm, of the mounting opening, and a second hook capable of being hung, buckled and limited with the first hook is correspondingly arranged on the first side wall of the swinging arm;
the second elastic piece is connected between the locking plate and the swing arm, the swing arm keeps a rightward swing trend by the second elastic piece under the state that the first hook and the second hook are mutually hooked, and the swing arm keeps a leftward swing trend by the second elastic piece under the state that the first hook and the second hook are mutually separated; and
the sliding block is arranged on the mounting plate in a left-right moving mode and can drive the locking plate to move back and forth under the driving of the ejector rod.
In the above scheme, the sliding block is located in front of the locking plate and at the side part of the locking hole, the bottom of the sliding block is provided with an inclined surface which can be in sliding fit with the upper end of the ejector rod, the rear part of the sliding block is provided with a vertically arranged guide shaft, correspondingly, the locking plate is provided with a sliding groove which is used for inserting the guide shaft and is in guiding fit with the guide shaft, and the sliding groove is at least provided with a first guide part extending leftwards and rightwards and a second guide part which is connected with the end part of the first guide part and gradually extends forwards. By adopting the structure, when the upper end of the ejector rod pushes the sliding block upwards, the sliding block slides towards the side part of the lock hole, the guide shaft moves towards the front end of the second guide part along the first guide part, and the sliding block cannot move forwards and backwards, so that the locking plate moves backwards under the action of the guide shaft; when the ejector rod cancels the force application on the sliding block, the locking plate moves forwards under the action of the first elastic piece, the guide shaft gradually moves from the second guide part to the inner part of the first guide part to drive the sliding block to move towards the direction close to the lock hole so as to meet the condition of unlocking and unlocking interchange, and the sliding block moves to play a role in triggering the unlocking and unlocking.
Preferably, the two sliding blocks are symmetrically arranged at the left side and the right side of the lock hole, and the inclined planes on the two sliding blocks are symmetrically arranged relative to the lock hole and extend outwards and downwards gradually from the positions close to the lock hole. By adopting the structure, as long as the ejector rod can be matched with one of the sliding blocks, the locking structure can be smoothly triggered, so that the reliability of the mechanical matching structure of the door lock is improved.
In order to be matched with the two sliding blocks in a guiding mode, the sliding groove comprises a first guiding portion and two second guiding portions, the two second guiding portions are connected to two ends of the first guiding portion respectively, and the first guiding portion and the two second guiding portions are spliced together to form a U-shaped structure with an opening arranged in advance and gradually enlarged.
In each of the above solutions, the mounting plate is provided with a first limiting member located in the mounting opening and disposed close to a first side wall of the mounting opening, and a second limiting member disposed close to a second side wall, the swing arm is constrained between the first limiting member and the second limiting member in a manner of moving back and forth and swinging left and right, and the first hook is located at the front side of the first limiting member. The first limiting part and the second limiting part are arranged to enable the swing arm to move back and forth and swing left and right stably.
Preferably, the rear end of the swing arm has a first connecting arm gradually extending from front to back to the second limiting member, and correspondingly, a first assembling opening capable of being rotatably matched with the first connecting arm is formed in a side wall of the second limiting member. The first assembling opening is inwards inclined from front to back from the opening, the end part of the first connecting arm forms a semi-cylindrical shape in the vertical direction, correspondingly, the inner end wall of the first assembling opening is also formed into an arc-shaped structure matched with the end part of the first connecting arm, and the width of the first assembling opening is larger than that of the first connecting arm. With this structure, the swing arm can swing with the joint of the first connecting arm and the first fitting opening as a fulcrum when swinging leftward.
Preferably, a second connecting arm extending towards the first limiting member is disposed on the first side wall of the swing arm, and correspondingly, a second assembling opening capable of being rotationally matched with the second connecting arm is disposed on the side wall of the first limiting member. The end part of the second connecting arm forms a semi-cylindrical shape in the vertical direction, and correspondingly, the inner end wall of the second assembling port is also formed into an arc-shaped structure matched with the end part of the second connecting arm. With the structure, the swing arm can swing with the matching position of the second connecting arm and the second assembling port as a fulcrum when swinging rightwards.
Preferably, a guide block extending in the direction of the second limiting member is disposed on a second side wall of the swing arm, and correspondingly, a slide way capable of being inserted by the guide block and being guided and matched back and forth, left and right is disposed on a side wall of the second limiting member. By adopting the structure, the swing arm can play a role in restraining and guiding when moving forwards and backwards and swinging leftwards and rightwards, so that the swing arm can be stably transited from one state to another state.
Preferably, the upper wall surface of the swing arm is provided with a first limiting column arranged close to the front end, correspondingly, the locking plate is provided with a second limiting column located behind the mounting opening, the second limiting column is located between the first limiting piece and the second limiting piece, and two ends of the second elastic piece are respectively constrained on the first limiting column and the second limiting column. The structure is used for providing the swing arm with the power of swinging left and right by the second elastic piece in the locking and unlocking switching state.
In order to facilitate assembly, an assembly opening for installing a first elastic piece is formed in the locking plate, a convex block which is inserted into the assembly opening and is in guide fit with the assembly opening is arranged on the installation plate, and two ends of the first elastic piece are respectively abutted against the front end wall of the assembly opening and the convex block.
Preferably, the lower end surface of the locking tongue is formed into an arc surface which smoothly transits downwards from front to back gradually. When the upper end of the ejector rod is contacted with the lock tongue, the arc-shaped structure can prevent the lock tongue from interfering the upward moving state of the ejector rod.
The cleaning machine comprises a box body and a door body, wherein the box body is provided with a washing cavity and an upper port communicated with the top of the washing cavity, one edge of the door body is rotatably connected to the edge of the upper port of the box body, an ejector rod can be arranged on the side wall of the box body in a vertically moving mode, the upper end of the ejector rod penetrates through the edge of the box body, and the mounting plate is arranged on the door body. The push rod moves up and down through a push rod motor or other driving components.
As an improvement, the back part of the mounting plate is provided with a photoelectric switch, and the back end of the locking plate is provided with a pin which extends backwards and can trigger the photoelectric switch. The photoelectric switch and the cleaning machine are controlled by the same control program, when the plug pins are inserted at the photoelectric switch, the door body is in an unlocking state, the cleaning program of the cleaning machine is not started, when the plug pins are separated from the photoelectric switch, the door body is in a locking state, and the cleaning program of the cleaning machine is allowed to be started.
Preferably, the mounting plate is provided with a micro switch disposed adjacent to a side portion of the locking plate, and the side portion of the locking plate is provided with a protrusion capable of triggering the micro switch in a state where the locking plate is moved forward. The micro switch and the cleaning machine are controlled by the same control program, when the locking plate moves forwards to lock the door body, the micro switch is triggered, the cleaning program of the cleaning machine is allowed to be started, when the locking plate moves backwards to unlock the door body, the micro switch cancels the trigger, and the cleaning program of the cleaning machine is not allowed to be started.
Compared with the prior art, the invention has the advantages that: the locking structure can be realized by a pure mechanical matching structure, and has low requirement on electric control logic; when the locking is needed, the upper end of the ejector rod moves upwards and applies force to the sliding block, the sliding block can drive the locking plate to move backwards, the second hook of the swing arm is separated from the first hook on the locking plate, the swing arm swings rightwards under the action of the second elastic element, when the ejector rod moves downwards, the force applied to the sliding block is cancelled, the locking plate moves forwards under the action of the first elastic element, and the lock tongue is inserted into the lock opening of the ejector rod, so that the locking is completed; when the lock needs to be unlocked, the ejector rod moves upwards, the locking plate is driven to move backwards through the sliding block, the swinging arm keeps the tendency of swinging leftwards under the action of the second elastic piece until the first hook and the second hook are hung and buckled together, the position of the locking plate is limited, and at the moment, the lock rod can downwards exit from the lock hole to complete the unlocking; the whole process is simple and reliable and is convenient to realize.
Drawings
FIG. 1 is a schematic diagram of a cleaning machine according to an embodiment of the present invention;
FIG. 2 is a schematic view of a door lock structure (not including a push rod) according to an embodiment of the present invention;
FIG. 3 is a schematic view of the back structure of FIG. 2;
FIG. 4 is a schematic structural diagram of a carrier rod according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a mounting plate according to an embodiment of the present invention;
FIG. 6 is a schematic view of a locking plate according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a slider according to an embodiment of the present invention;
FIG. 8 is a schematic view of a swing arm according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of the door lock structure in an unlocked state according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of the door lock structure in a locked state according to the embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 10, the door lock structure of the present embodiment is used for locking any door body and any box body, and the present embodiment is described by taking a cleaning machine as an example. The cleaning machine of this embodiment includes box 8 and door 9, and box 8 has the washing chamber and communicates in the last port 81 at this washing chamber top, and the edge of door 9 rotates the edge of connecting at box 8 last port 81.
The door lock structure of this embodiment includes mounting panel 1, ejector pin 2, lockplate 3, first elastic component 4, swing arm 5, second elastic component 6 and slider 7, and ejector pin 2 can be located on 1 lateral wall of box with reciprocating and the upper end passes 1 edge of box and arranges, and ejector pin 2 realizes reciprocating and location through push rod motor 20 or other actuating mechanism, and mounting panel 1, lockplate 3, first elastic component 4, swing arm 5, second elastic component 6 and slider 7 are all installed on the door body 9. Specifically, the mounting plate 1 is horizontally mounted on the door body 9, the mounting plate 1 may also be a mounting box with an inner cavity, and the front portion of the mounting plate 1 is provided with a lock hole 11. The top rod 2 is vertically arranged, the upper end of the top rod is arranged corresponding to the lock hole 11, the upper end of the top rod 2 can penetrate through the lock hole 11 when moving upwards, and the rear side wall of the top rod 2 is provided with a lock opening 21. The lock plate 3 is provided on the mounting plate 1 to be movable back and forth with respect to the lock hole 11 and located on the rear side of the lock hole 11, and the lock plate 3 has a tongue 31 at the front end thereof to be inserted into the lock hole 21 in a state where the lock plate 3 is advanced. The first elastic member 4 is provided on the mounting plate 1 and keeps the lock plate 3 always moving toward the lock hole 11. The lock plate 3 is provided with a mounting opening 32 extending in the front-rear direction for mounting the swing arm 5, the swing arm 5 is provided in the mounting opening 32 so as to be movable forward and backward, and the swing arm 5 is also capable of swinging left and right in the mounting opening 32. The mounting hole 32 is provided with a first hook 321 on a first side wall close to the swing arm 5, correspondingly, a second hook 51 capable of being hung and buckled with the first hook 321 for limiting is arranged on the first side wall of the swing arm 5, the outer side wall of the first hook 321 and the outer side wall of the second hook 51 can be parallel to each other and can be guided back and forth in a mutually close state, the mutually buckled surfaces of the first hook 321 and the second hook 51 are in inclined surface fit, and the inclined surface on the first hook 321 and the inclined surface on the second hook 51 are both inclined forwards from left to right. The second elastic member 6 is connected between the lock plate 3 and the swing arm 5, and when the first hook 321 and the second hook 51 are engaged with each other, the second elastic member 6 keeps the swing arm 5 in a rightward swing tendency, and when the first hook 321 and the second hook 51 are separated from each other, the second elastic member 6 keeps the swing arm 5 in a leftward swing tendency. The slide block 7 is arranged on the mounting plate 1 in a manner of moving left and right and can drive the locking plate 3 to move back and forth under the driving of the mandril 2.
Specifically, the slider 7 is positioned in front of the lock plate 3 and at the side of the lock hole 11, and slide rails 73, 100 capable of guiding left and right are correspondingly provided on the bottom of the slider 7 and the upper wall surface of the mounting plate 1. The bottom of the sliding block 7 is provided with a slope 71 which can be in sliding fit with the upper end of the mandril 2 at a position close to the lock hole 11, the rear part of the sliding block 7 is provided with a guide shaft 72 which is vertically arranged, correspondingly, the locking plate 3 is provided with a sliding chute 33 which is used for inserting the guide shaft 72 and is in guiding fit with the guide shaft 72, and the sliding chute 33 is provided with a first guide part 331 which extends leftwards and rightwards and a second guide part 332 which is connected with the end part of the first guide part 331 and gradually extends forwards. The two sliders 7 in this embodiment are symmetrically arranged at the left and right sides of the lock hole 11, and the inclined surfaces 71 on the two sliders 7 are symmetrically arranged relative to the lock hole 11 and both extend outwards and downwards gradually from the positions close to the lock hole 11. The sliding slot 33 includes a first guiding portion 331 and two second guiding portions 332, the two second guiding portions 332 are respectively connected to two ends of the first guiding portion 331, and the first guiding portion 331 and the two second guiding portions 332 are jointly spliced to form a U-shaped structure with an opening arranged in advance and gradually enlarged. When the upper end of the top rod 2 pushes up the slider 7, the slider 7 slides to the side of the lock hole 11, the guide shaft 72 moves along the first guide part 331 to the front end of the second guide part 332, and the slider 7 cannot displace back and forth, so that the lock plate 3 moves back under the action of the guide shaft 72; when the ejector rod 2 cancels the application of force to the sliding block 7, the locking plate 3 moves forward under the action of the first elastic piece 4, the guide shaft 72 gradually moves from the second guide portion 332 to the middle of the first guide portion 331, and drives the sliding block 7 to move towards the direction close to the lock hole 11, so that the state exchange between unlocking and unlocking is met, and the sliding block 7 of the embodiment moves to play a role in triggering the unlocking and the unlocking.
In the present embodiment, the mounting plate 1 is provided with a first limiting member 34 located in the mounting opening 32 and arranged near the first side wall of the mounting opening 32 and a second limiting member 35 arranged near the second side wall, the swing arm 5 is constrained between the first limiting member 34 and the second limiting member 35 in a manner of moving back and forth and swinging left and right, and the first hook 321 is located at the front side of the first limiting member 34. The rear end of the swing arm 5 has a first connecting arm 52 extending from front to back gradually toward the second limiting member 35, and correspondingly, a first assembling hole 351 capable of rotatably matching with the first connecting arm 52 is formed on a side wall of the second limiting member 35. The first assembling hole 351 is inclined from front to back from the opening inwards, the end part of the first connecting arm 52 forms a semi-cylindrical shape in the vertical direction, correspondingly, the inner end wall of the first assembling hole 351 is also formed into an arc-shaped structure matched with the end part of the first connecting arm 52, the width of the first assembling hole 351 is larger than that of the first connecting arm 52, and the swinging arm 5 can swing by taking the matching part of the first connecting arm 52 and the first assembling hole 351 as a fulcrum when swinging leftwards. The swing arm 5 has a second connecting arm 53 extending toward the first limiting member 34 on a first sidewall thereof, and correspondingly, a second assembling opening 341 capable of rotatably engaging with the second connecting arm 53 is formed on a sidewall of the first limiting member 34. The end of the second connecting arm 53 is formed in a semi-cylindrical shape in the vertical direction, correspondingly, the inner end wall of the second assembling port 341 is also formed into an arc-shaped structure matched with the end of the second connecting arm 53, and the swing arm 5 can swing with the matching position of the second connecting arm 53 and the second assembling port 341 as a fulcrum when swinging to the right. A guide block 54 extending toward the second limiting member 35 is disposed on a second sidewall of the swing arm 5, and correspondingly, a slide 352 capable of inserting the guide block 54 therein and guiding and matching back and forth, left and right is disposed on the sidewall of the second limiting member 35. The guide block 54 cooperates with the slide 352 to restrain and guide the swing arm 5 during forward and backward movement and side-to-side movement, so that the swing arm can be stably transited from one state to another.
The upper wall surface of the swing arm 5 is provided with a first limit post 55 arranged close to the front end, the first limit post 55 is located on the central line of the swing arm 5, correspondingly, the locking plate 3 is provided with a second limit post 36 located behind the mounting port 32, the second limit post 36 is located between the first limit part 34 and the second limit part 35, the second elastic part 6 is a spring, two ends of the second elastic part 6 are respectively constrained on the first limit post 55 and the second limit post 36, and under the locking and unlocking conversion state, the second elastic part 6 can provide corresponding power for the swing arm 5 to swing left and right. For the convenience of assembly, the locking plate 3 is provided with an assembly opening 37 for installing the first elastic element 4, the installation plate 1 is provided with a projection 12 which is inserted into the assembly opening 37 and is in guiding fit with the assembly opening 37, the first elastic element 4 is a spring, and two ends of the first elastic element 4 respectively abut against the front end wall of the assembly opening 37 and the projection 12. The lower end surface of the bolt 31 is formed into a cambered surface which smoothly transits from front to back gradually and downwards, and when the upper end of the ejector rod 2 is contacted with the bolt 31, the cambered surface structure can avoid the interference of the bolt 31 on the upward moving state of the ejector rod 2.
In this embodiment, the rear portion of the mounting plate 1 is provided with the photoelectric switch 10, and the rear end of the locking plate 3 is provided with a prong 39 extending rearward and capable of activating the photoelectric switch 10. The photoelectric switch 10 and the cleaning machine are controlled by the same control program, when the pin 39 is inserted at the photoelectric switch 10, the door body 9 is in an unlocking state, the cleaning program of the cleaning machine is not started, and when the pin 39 is separated from the photoelectric switch 10, the door body 9 is in a locking state, and the cleaning program of the cleaning machine is allowed to be started. The mounting plate 1 is provided with a microswitch 20 arranged close to the side of the locking plate 3, and the side of the locking plate 3 is provided with a projection 38 capable of triggering the microswitch 20 in a state where the locking plate 3 is moved forward. The micro switch 20 and the cleaning machine are controlled by the same control program, when the locking plate 3 moves forwards to the door body 9 to be locked, the micro switch 20 is triggered, the cleaning program of the cleaning machine is allowed to be started, when the locking plate 3 moves backwards to the door body 9 to be unlocked, the micro switch 20 is not triggered, and the cleaning program of the cleaning machine is not allowed to be started.
When the door lock structure and the cleaning machine of the embodiment are used, when locking is needed, the upper end of the push rod 2 moves upwards and applies force to the slider 7, the slider 7 slides towards the side part of the lock hole 11, the guide shaft 72 moves towards the front end of the second guide part 332 along the first guide part 331, because the slider 7 cannot displace forwards and backwards, the locking plate 3 moves backwards under the action of the guide shaft 72 until the first hook 321 is separated from the second hook 51 of the swing arm 5, at this time, the second elastic element 6 gives a swinging force and a pulling force to the right of the swing arm 5, the swing arm 5 swings to the right by taking the matching part of the second connecting arm 53 and the second assembling hole 341 as a fulcrum, when the push rod 2 moves downwards, the force applied to the slider 7 is cancelled, the locking plate 3 moves forwards under the action of the first elastic element 4 and the bolt 31 is inserted into the lock hole 21 of the push rod 2, and locking is completed, the guide shaft 72 gradually moves from the second guide portion 332 toward the middle of the first guide portion 331 with the first connecting arm 52 of the swing arm 5 inserted in the first fitting opening 351; in the locking state, the micro switch 20 is triggered, the photoelectric switch 10 is not triggered, and the washing machine program is allowed to be started; when the lock needs to be unlocked, the ejector rod 2 moves upwards, the locking plate 3 is driven to move backwards through the sliding block 7 again, the swing arm 5 keeps a tendency of swinging leftwards under the action of the second elastic piece 6, when the front end of the first hook 321 is aligned with the rear end of the second hook 51, the swing arm 5 swings leftwards by taking the matching position of the first connecting arm 52 and the first assembling hole 351 as a fulcrum until the first hook 321 is hung and buckled with the second hook 51 to limit the position of the locking plate 3, and at the moment, the locking rod 2 can downwards withdraw from the locking hole 11 to complete the unlocking; in the unlocked state, the microswitch 20 is not triggered, the photoelectric switch 10 is triggered, and the washer program is not allowed to be started.
Claims (15)
1. A door lock structure characterized in that: comprises that
The mounting plate (1), the mounting plate (1) is provided with a lock hole (11);
the ejector rod (2) is arranged below the mounting plate (1) in a vertically movable manner, the ejector rod (2) moves upwards and can penetrate through the lock hole (11), and a lock opening (21) is formed in the rear side wall of the ejector rod (2);
the locking plate (3) is arranged on the mounting plate (1) and positioned at the rear side of the locking hole (11) in a manner of moving back and forth relative to the locking hole (11), and the front end of the locking plate (3) is provided with a bolt (31) which can be inserted into the lock opening (21) in a state that the locking plate (3) moves forward;
a first elastic member (4) which is provided on the mounting plate (1) and keeps the locking plate (3) always moving towards the locking hole (11);
the swing arm (5), a mounting opening (32) which extends forwards and backwards and is used for mounting the swing arm (5) is formed in the locking plate (3), the swing arm (5) can move forwards and backwards and can be arranged in the mounting opening (32) in a left-right swinging mode in the moving process, a first hook (321) is arranged on a first side wall, close to the swing arm (5), of the mounting opening (32), and correspondingly, a second hook (51) which can be in hanging and buckling limit with the first hook (321) is arranged on the first side wall of the swing arm (5);
the second elastic piece (6) is connected between the locking plate (3) and the swinging arm (5), the swinging arm (5) keeps a swinging trend towards the right by the second elastic piece (6) under the state that the first hook (321) and the second hook (51) are mutually buckled, and the swinging arm (5) keeps a swinging trend towards the left by the second elastic piece (6) under the state that the first hook (321) and the second hook (51) are mutually separated; and
the sliding block (7) is arranged on the mounting plate (1) in a left-right moving manner and can drive the locking plate (3) to move back and forth under the driving of the ejector rod (2);
the sliding block (7) is located in front of the locking plate (3) and on the side of the locking hole (11), the bottom of the sliding block (7) is provided with an inclined surface (71) which can be in sliding fit with the upper end of the ejector rod (2), the rear part of the sliding block (7) is provided with a vertically arranged guide shaft (72), correspondingly, the locking plate (3) is provided with a sliding groove (33) into which the guide shaft (72) is inserted and which is in guide fit with the guide shaft (72), and the sliding groove (33) is at least provided with a first guide part (331) which extends leftwards and rightwards and a second guide part (332) which is connected to the end part of the first guide part (331) and extends forwards gradually.
2. The door lock structure according to claim 1, wherein: the two sliding blocks (7) are symmetrically arranged at the left side and the right side of the lock hole (11), and the inclined planes (71) on the two sliding blocks (7) are symmetrically arranged relative to the lock hole (11) and extend outwards and gradually downwards from the positions close to the lock hole (11).
3. The door lock structure according to claim 2, wherein: the sliding groove (33) comprises a first guide portion (331) and two second guide portions (332), the two second guide portions (332) are connected to two ends of the first guide portion (331) respectively, and the first guide portion (331) and the two second guide portions (332) are spliced together to form a U-shaped structure with an opening arranged in advance and gradually enlarged.
4. The door lock structure according to claim 1, wherein: the mounting plate (1) is provided with a first limiting part (34) located in the mounting opening (32) and close to a first side wall of the mounting opening (32) and a second limiting part (35) close to a second side wall, the swing arm (5) can move back and forth and is constrained between the first limiting part (34) and the second limiting part (35) in a left-right swinging mode, and the first hook (321) is located on the front side of the first limiting part (34).
5. The door lock structure according to claim 4, wherein: the rear end of the swing arm (5) is provided with a first connecting arm (52) which gradually extends towards the second limiting part (35) from front to back, and correspondingly, a first assembling opening (351) which can be in running fit with the first connecting arm (52) is formed in the side wall of the second limiting part (35).
6. The door lock structure according to claim 5, wherein: the first assembling opening (351) is inwards inclined from front to back from the opening, the end part of the first connecting arm (52) is vertically formed into a semi-cylindrical shape, correspondingly, the inner end wall of the first assembling opening (351) is also formed into an arc-shaped structure matched with the end part of the first connecting arm (52), and the width of the first assembling opening (351) is larger than that of the first connecting arm (52).
7. The door lock structure according to claim 4, wherein: and a second connecting arm (53) extending towards the first limiting part (34) is arranged on a first side wall of the swing arm (5), and correspondingly, a second assembling opening (341) capable of being in running fit with the second connecting arm (53) is formed in the side wall of the first limiting part (34).
8. The door lock structure according to claim 7, wherein: the end part of the second connecting arm (53) is vertically formed into a semi-cylindrical shape, and correspondingly, the inner end wall of the second assembling opening (341) is also formed into an arc-shaped structure matched with the end part of the second connecting arm (53).
9. The door lock structure according to claim 4, wherein: a guide block (54) extending towards the second limiting part (35) is arranged on a second side wall of the swing arm (5), and correspondingly, a slide way (352) which can be inserted by the guide block (54) and is matched with the guide block in a front-back, left-right guiding manner is arranged on the side wall of the second limiting part (35).
10. The door lock structure according to claim 4, wherein: be provided with first spacing post (55) that is close to the front end and arranges on the upper wall of swing arm (5), it is corresponding, be provided with on lockplate (3) and be located second spacing post (36) of installing port (32) rear side, and this second spacing post (36) are located between first locating part (34) and second locating part (35), the both ends of second elastic component (6) are retrained respectively on first spacing post (55), second spacing post (36).
11. The door lock structure according to any one of claims 1 to 10, wherein: the locking plate (3) is provided with an assembly opening (37) for installing the first elastic piece (4), the installation plate (1) is provided with a convex block (12) which is inserted into the assembly opening (37) and is in guide fit with the assembly opening, and two ends of the first elastic piece (4) are respectively abutted against the front end wall of the assembly opening (37) and the convex block (12).
12. The door lock structure according to any one of claims 1 to 10, wherein: the lower end face of the lock tongue (31) is formed into a cambered surface which smoothly transits downwards gradually from front to back.
13. A cleaning machine with the door lock structure of any one of claims 1 to 12, comprising a box body (8) and a door body (9), wherein the box body (8) is provided with a washing cavity and an upper port (81) communicated with the top of the washing cavity, one edge of the door body (9) is rotatably connected to the edge of the upper port (81) of the box body (8), the ejector rod (2) can be arranged on the side wall of the box body (8) in a vertically movable mode, the upper end of the ejector rod penetrates through the edge of the box body (8), and the mounting plate (1) is arranged on the door body (9).
14. The cleaning machine of claim 13, wherein: the rear part of the mounting plate (1) is provided with a photoelectric switch (10), and the rear end of the locking plate (3) is provided with a pin (39) which extends backwards and can trigger the photoelectric switch (10).
15. The cleaning machine of claim 13, wherein: the installation plate (1) is provided with a microswitch (20) which is arranged close to the side part of the locking plate (3), and the side part of the locking plate (3) is provided with a convex part (38) which can trigger the microswitch (20) under the state that the locking plate (3) moves forwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541295.6A CN112112495B (en) | 2019-06-21 | 2019-06-21 | Door lock structure and cleaning machine with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541295.6A CN112112495B (en) | 2019-06-21 | 2019-06-21 | Door lock structure and cleaning machine with same |
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| Publication Number | Publication Date |
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| CN112112495A CN112112495A (en) | 2020-12-22 |
| CN112112495B true CN112112495B (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910541295.6A Active CN112112495B (en) | 2019-06-21 | 2019-06-21 | Door lock structure and cleaning machine with same |
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| CN (1) | CN112112495B (en) |
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| CN202430510U (en) * | 2011-12-29 | 2012-09-12 | 合肥日上电器有限公司 | Manually-driven pull rod unlocking device for electric door lock of washing machine |
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| Publication number | Publication date |
|---|---|
| CN112112495A (en) | 2020-12-22 |
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