CN112112494B - Door lock structure and cleaning machine with same - Google Patents
Door lock structure and cleaning machine with same Download PDFInfo
- Publication number
- CN112112494B CN112112494B CN201910541294.1A CN201910541294A CN112112494B CN 112112494 B CN112112494 B CN 112112494B CN 201910541294 A CN201910541294 A CN 201910541294A CN 112112494 B CN112112494 B CN 112112494B
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- locking
- locking plate
- door lock
- positioning
- lock structure
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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
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- Lock And Its Accessories (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 drives the locking plate to move backwards through the trigger assembly, the positioning needle is driven to leave the position corresponding to the unlocking state in the positioning groove, the constraint effect on the locking plate is cancelled, the locking plate moves forwards under the action of the first elastic piece, and the lock tongue is inserted into the lock opening of the ejector rod to complete the locking; when the lock needs to be unlocked, the ejector rod moves upwards, the trigger assembly drives the locking plate to move backwards to drive the positioning needle to leave the position corresponding to the locking state in the positioning groove, the positioning needle gradually moves to the position corresponding to the unlocking state in the positioning groove along with the backward movement of the locking plate to restrain the position of the locking plate, and at the moment, the locking rod can downwards withdraw from the locking 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 reciprocating manner relative to the locking hole, a bolt which can be inserted into the locking notch in a forward moving state of the locking plate is arranged at the front end of the locking plate, and a positioning groove for limiting the position of the locking plate is formed in 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 positioning needle can be inserted in the positioning groove in a sliding manner and is matched with the positioning groove to limit the position of the locking plate in a locking and unlocking state; and
the trigger assembly is movably arranged on the mounting plate and can drive the locking plate to move backwards under the jacking force of the ejector rod, so that the locking and unlocking positions of the positioning needle in the positioning groove are switched.
In the scheme, the positioning needles are vertically arranged, the positioning grooves are at least provided with slideways which only allow the positioning needles to slide in the positioning grooves in a single direction, the front parts of the slideways are provided with first limiting points which can be matched and limited with the positioning needles in an unlocking state, and the rear parts of the slideways are provided with second limiting points which can be matched and limited with the positioning needles in a locking state. 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 a front-back interval, a limit block is arranged between the first limit point and the second limit point, the positioning groove is provided with a first slideway which bypasses a first side of the limit block and communicates the first limit point with the second limit point, and a second slideway which bypasses a 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 front end face of the limiting block 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 slideway extends backwards from the second limit point to form a limit groove which can be clamped by the positioning needle so as to limit the position of the locking plate in a locking state. The structure can improve the restraint force to the positioning pin in the locking state.
Preferably, the tail end of the first slideway and the starting end of the second slideway respectively extend forwards to form a Y-shaped structure together with the slideway and the limiting groove. The tail end of the first slide way and the part of the second slide way extending forwards are horizontally arranged. The structure can provide a certain yielding space for the positioning needle when the track is converted, so that the matching of the motion track of the positioning needle and the back-and-forth movement process of the locking plate is more stable and smooth.
In order to facilitate installation and assembly, the first end of the positioning needle is vertically arranged 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 mounting plate through the second elastic piece.
Preferably, the mounting plate is provided with a boss arranged corresponding to the lower wall surface of the locking plate, the boss is provided with a mounting hole which is penetrated through from top to bottom, the second end of the positioning pin is bent downwards and inserted into the mounting hole, the first end of the second elastic member is buckled on the boss and presses and holds the second end of the positioning pin at the lower part, and the second elastic member is provided with a through hole through which the positioning pin passes so as to be exposed above the second elastic member. The second elastic piece is provided with a clamping groove near the first end, the boss can be embedded in the clamping groove, the mounting plate is provided with a strip-shaped opening located on the front side of the mounting hole, and the edge of the first end of the second elastic piece is inserted into the strip-shaped opening. By adopting the structure, the positioning needle is convenient to be restrained on the mounting plate, and the first end of the positioning needle is allowed to generate certain elastic deflection so as to be better matched with the positioning groove slideway in the invention.
Preferably, the second end of the second elastic element is bent upwards and forwards to form an elastic sheet capable of abutting against the lower side of the positioning pin, and the elastic sheet enables the part vertically arranged on the positioning pin to always keep a trend of moving upwards. 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.
In each scheme, the trigger assembly comprises a swing arm and a sliding block, the swing arm is rotatably arranged on the mounting plate and is respectively and rotatably connected with the locking plate and the sliding block, the sliding block is movably arranged on the mounting plate in a front-back mode, and the front end of the sliding block is provided with an inclined surface which can be matched with the upper end of the ejector rod to slide. By adopting the structure, when the ejector rod moves upwards, the upper end of the ejector rod generates ejecting force on the inclined surface of the sliding block, and the sliding block cannot move upwards and downwards, so that the ejecting force applied to the sliding block is converted into force for moving forwards and backwards through the inclined surface, the sliding block is enabled to move forwards and backwards, the swing arm is driven to swing, and the locking plate is driven to move forwards and backwards, so that the positioning needle moves in the slide way, and the locking state and the unlocking state are switched.
Preferably, the swing arm has a first connecting arm arranged towards the locking plate and a second connecting arm arranged opposite to the first connecting arm, an end of the first connecting arm is rotatably connected with the locking plate, the slider comprises a first slider and a second slider, a rear end of the first slider is rotatably connected with a middle portion of the first connecting arm, a front end of the first slider is located above the locking hole and has a first inclined surface arranged corresponding to a rear portion of the locking hole, a rear end of the second slider is rotatably connected with the second connecting arm, and a front end of the second slider is located above the locking hole and has a second inclined surface arranged corresponding to a front portion of the locking hole. Preferably, the first inclined plane is inclined gradually backward from top to bottom, and the second inclined plane is inclined gradually forward from top to bottom. The first slider and the second slider are arranged, when the ejector rod moves upwards, the first slider and the second slider can be driven to move backwards and move forwards at the same time, so that the swinging arm is ensured to swing in a required direction, and the locking plate is driven to move backwards; and 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.
Preferably, the first sliding block is arranged in an L shape, a transverse part of the L-shaped first sliding block abuts against the front end face of the locking plate, and the locking tongue is located below the first inclined surface and the second inclined surface. With this structure, the backward force applied to the locking plate by the front lateral part of the first slider can be used, and the reliability of the mechanical matching structure of the door lock can be further improved.
In order to facilitate connection and assembly, the middle part of the swing arm is rotatably connected to the mounting plate through a rotating shaft, a first connecting shaft which is vertically arranged and is positioned at the end part and a second connecting shaft which is positioned at the middle part are arranged on the first connecting arm, a first positioning hole for the first connecting shaft to be rotatably inserted into is formed in the side wall of the locking plate, a second positioning hole which transversely extends and is used for the second connecting shaft to be rotatably inserted into is formed in the rear end of the first sliding block, a third connecting shaft which is vertically arranged is arranged on the second connecting arm, and a third positioning hole which transversely extends and is used for the third connecting shaft to be rotatably inserted into is formed in the rear end of the second sliding 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.
In order to facilitate installation, a clamping groove for installing a first elastic piece is formed in the installation plate, the first elastic piece is a spring, the first end of the first elastic piece abuts against the rear edge of the locking plate, and the second end of the first elastic piece abuts against the rear edge of the clamping groove.
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.
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 photoelectric blocking rod 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 locking plate is pushed backwards to the rearmost end by the ejector rod, the photoelectric stop rod is inserted at the photoelectric switch and feeds back a signal to the controller, and in the invention, the ejector rod can push the locking plate to the rearmost end when the locking state is converted to the unlocking state and the unlocking state is converted to the locking state, namely: the photoelectric switch can send a signal under the condition that the ejector rod pushes the locking plate backwards to smoothly complete the conversion of the positioning state of the positioning pin, so that the condition that the door body is pushed out too high when being unlocked to be converted into the locking state is avoided, and the hand clamping is caused.
Preferably, the side wall of the box body is provided with a driving piece capable of driving the ejector rod to move up and down and a microswitch arranged close to the driving piece, and the driving piece is provided with a shifting piece capable of triggering the microswitch when the ejector rod moves up. The micro switch and the cleaning machine are controlled by the same control program, when the door body is locked, the micro switch is triggered, the cleaning program of the cleaning machine is allowed to be started, when the door body is unlocked, the micro switch is cancelled, 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 drives the locking plate to move backwards through the trigger assembly, the positioning needle is driven to leave the position corresponding to the unlocking state in the positioning groove, the constraint effect on the locking plate is cancelled, the locking plate moves forwards under the action of the first elastic piece, and the lock tongue is inserted into the lock opening of the ejector rod to complete the locking; when the lock needs to be unlocked, the ejector rod moves upwards, the trigger assembly drives the locking plate to move backwards to drive the positioning needle to leave the position corresponding to the locking state in the positioning groove, the positioning needle gradually moves to the position corresponding to the unlocking state in the positioning groove along with the backward movement of the locking plate to restrain the position of the locking plate, and at the moment, the locking rod can downwards withdraw from the locking 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 according to an embodiment of the present invention (not including a push rod, unlocked state);
FIG. 3 is a schematic bottom view of FIG. 2;
FIG. 4 is a schematic structural view (unlocked state) of the hidden mounting plate shown in FIG. 3;
FIG. 5 is a schematic view of a hidden part of the component shown in FIG. 2;
FIG. 6 is a schematic view of a fitting structure of the positioning pin and the slide way in the locked state according to the embodiment of the present invention;
FIG. 7 is a schematic structural view of a chute according to an embodiment of the present invention;
FIG. 8 is a schematic view of the structure of FIG. 7 at another angle;
FIG. 9 is a schematic structural diagram illustrating an unlocked state of the door lock structure according to an embodiment of the present invention;
FIG. 10 is a schematic structural view of a door lock in a locked state in accordance with an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a carrier rod in the embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 11, 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, pilot pin 5 and trigger subassembly 6, and ejector pin 2 can be located on 1 lateral wall of box and the upper end passes 1 edge of box and arranges with reciprocating, 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, pilot pin 5 and trigger subassembly 6 are all installed on a 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 rear part of the lower wall surface of the locking plate 3 is provided with a positioning groove 32 for limiting the position of the locking plate 3, and the positioning needle 5 can be inserted in the positioning groove 32 in a sliding way and is matched with the positioning groove 32 to limit the position of the locking plate 3 in a locking and unlocking state. The trigger assembly 6 is movably arranged on the mounting plate 1 and can drive the locking plate 3 to move backwards under the jacking force of the mandril 2 so as to switch the locking and unlocking positions of the positioning needle 5 in the positioning groove 32.
Specifically, the positioning needle 5 is vertically arranged, the positioning slot 32 is provided with a slide way 320 which only allows the positioning needle 5 to slide in the positioning slot 32 in a single direction, a first limit point 321 which can be matched with the positioning needle 5 in a limiting manner in an unlocked state is formed at the front part of the slide way 320, and a second limit point 322 which can be matched with the positioning needle 5 in a limiting manner in a locked state is formed at the rear part of the slide way 320. A one-way slide 320 is arranged in the positioning groove 32 to facilitate the switching of the positioning needle 5 between the first limit point 321 and the second limit point 322, so as to realize the switching of the unlocking state and the locking state. The first limiting point 321 and the second limiting point 322 are arranged at intervals in a front-back manner, a limiting block 323 is arranged between the first limiting point 321 and the second limiting point 322, the limiting block 323 is shaped like a peach-heart, the tip of the limiting block 323 faces backwards, the positioning groove 32 is provided with a first slide way 324 bypassing the first side of the limiting block 323 and communicating the first limiting point 321 with the second limiting point 322, a second slide way 325 bypassing the second side of the limiting block 323 and communicating the first limiting point 321 with the second limiting point 322, the first slide way 324, the first limiting point 321, the second slide way 325 and the second limiting point 322 are connected end to jointly enclose the slide way 320, and the structure is convenient for being matched with the positioning needle 5 to realize the unidirectional sliding of the positioning needle 5. The slopes of the first slideway 324 and the second slideway 325 are gradually increased along the sliding direction of the positioning pin 5 in the slideway 320, and steps which can enable the slope of the corresponding slideway 320 to be steeply reduced are arranged at the positions close to the first limiting point 321 and the second limiting point 322. A first steeply decreasing step 326 is formed near the end of the first slide way 324, a second steeply decreasing step 327 is formed at the junction of the end of the first slide way 324 and the first limit point 321, a third steeply decreasing step 328 is formed at the junction of the first limit point 321 and the starting end of the second slide way 325, and a fourth steeply decreasing step 329 is formed at the junction of the end of the second slide way 325 and the second limit point 322. The slope of the first slide way 324 and the second slide way 325 is set to facilitate the unidirectional sliding of the positioning needle 5 in cooperation, and the step arrangement not only ensures that the positioning needle 5 can only slide in one direction, but also temporarily restricts the position of the positioning needle 5 at the first limit point 321 and the second limit point 322. The front end face of the limiting block 323 is concavely provided with a limiting face 3231 which can abut against the positioning needle 5 to limit the position of the locking plate 3 in an unlocked state, and the structure is matched with the step to realize the restraining effect of the first limiting point 321 on the positioning needle 5. The slide way 320 extends backwards from the second limiting point 322 to form a limiting groove 3221 for the positioning pin 5 to clamp therein to limit the position of the locking plate 3 in the locked state, and this structure can improve the restraining force of the positioning pin 5 in the locked state. The end of the first slide way 324 and the beginning of the second slide way 325 respectively extend forward to form a Y-shaped structure together with the slide way 320 and the limiting groove 32. The end of the first slide way 324 and the forward extending part of the start end of the second slide way 325 are horizontally arranged, and the structure can provide a certain yielding space for the positioning pin 5 during track conversion, so that the motion track of the positioning pin 5 is matched with the forward and backward movement process of the locking plate 3 more stably and smoothly.
In order to facilitate the installation and assembly of the positioning pin 5, a first end of the positioning pin 5 is vertically arranged and extends into the slideway 320 to be matched with the slideway 320 in a guiding manner, and a second end of the positioning pin 5 is restrained on the mounting plate 1 through a second elastic piece 10. The mounting plate 1 is provided with a boss 12 arranged corresponding to the lower wall surface of the locking plate 3, the boss 12 is provided with a mounting hole 121 which penetrates through the boss 12 from top to bottom, the second end of the positioning pin 5 is bent downwards and inserted into the mounting hole 121, the second elastic element 10 is a metal sheet, the first end of the second elastic element 10 is buckled on the boss 12 and presses the second end of the positioning pin 5 to the lower side, and the second elastic element 10 is provided with a through hole 101 through which the positioning pin 5 passes so as to be exposed above the second elastic element 10. The second elastic member 10 is formed with a slot 102 near the first end for the boss 12 to be inserted into, the mounting plate 1 is provided with a strip-shaped opening 13 located at the front side of the mounting hole 121, and the edge of the first end of the second elastic member 10 is bent downward and inserted into the strip-shaped opening 13. The second end of the second elastic element 10 is bent upwards and forwards to form an elastic sheet 103 which can be abutted against the lower side of the positioning pin 5, and the elastic sheet 103 enables the vertically arranged part on the positioning pin 5 to always keep the trend of moving upwards, so that the first end of the positioning pin 5 is favorably matched with the slide way 320 compactly, and the positioning pin 5 is prevented from being separated from the slide way.
In this embodiment, the triggering component 6 includes a swing arm 61 and a slider, the swing arm 61 is rotatably disposed on the mounting plate 1 and rotatably connected with the locking plate 3 and the slider, the slider is movably disposed on the mounting plate 1 back and forth, and the front end of the slider forms an inclined surface capable of sliding in cooperation with the upper end of the ejector rod 2. When the ejector rod 2 moves upwards, the upper end of the ejector rod 2 generates ejecting force on the inclined surface of the slider, and the slider cannot move up and down and can only move back and forth, so that the ejecting force applied to the slider is converted into force moving back and forth through the inclined surface, the slider moves back and forth, the swing arm 61 is driven to swing, and the locking plate 3 is driven to move back and forth, so that the positioning needle 5 moves in the slide way 320 to switch the locking state and the unlocking state.
The swing arm 61 has a first link arm 611 disposed toward the lock plate 3 and a second link arm 612 disposed opposite to the first link arm 611, an end portion of the first link arm 611 is rotatably connected to the lock plate 3, the slider includes a first slider 62 and a second slider 63, a rear end of the first slider 62 is rotatably connected to a middle portion of the first link arm 611, a front end of the first slider 62 is located above the lock hole 11 and has a first inclined surface 621 disposed corresponding to a rear portion of the lock hole 11, a rear end of the second slider 63 is rotatably connected to the second link arm 612, and a front end of the second slider 63 is located above the lock hole 11 and has a second inclined surface 631 disposed corresponding to a front portion of the lock hole 11. The first inclined surface 621 gradually inclines backward from top to bottom, and the second inclined surface 631 gradually inclines forward from top to bottom. When the ejector rod 2 moves upwards, the first sliding block 62 can be driven to move backwards and the second sliding block 63 can be driven to move forwards at the same time, so that the swinging arm 61 is ensured to swing in a required direction, and the locking plate 3 is driven to move backwards; and as long as the ejector rod 2 can be matched with one of the slide blocks, the locking structure can be smoothly triggered, so that the reliability of the mechanical matching structure of the door lock is improved. The first slide block 62 is arranged in an L shape, and a transverse portion 622 of the L-shaped first slide block 62 abuts on a front end surface of the lock plate 3, and the latch tongue 31 is located below the first inclined surface 621 and the second inclined surface 631. The front lateral portion 622 of the first slider 62 can apply a backward force to the locking plate 3, further improving the reliability of the mechanical engagement structure of the door lock. For convenience of connection and assembly, the middle portion of the swing arm 61 is rotatably connected to the mounting plate 1 through the rotating shaft 610, the first connecting arm 611 is provided with a first connecting shaft 6111 which is vertically arranged and located at the end portion and a second connecting shaft 6112 which is located at the middle portion, the side wall of the locking plate 3 is provided with a first positioning hole 33 for the first connecting shaft 6111 to be rotatably inserted therein, the rear end of the first slider 62 is provided with a second positioning hole 623 which extends transversely and for the second connecting shaft 6112 to be rotatably inserted therein, the second connecting arm 612 is provided with a third connecting shaft 6121 which is vertically arranged, and the rear end of the second slider 63 is provided with a third positioning hole 632 which extends transversely and for the third connecting shaft 6121 to be rotatably inserted therein.
The lower end surface of the latch bolt 31 of this embodiment is formed into an arc surface 311 which smoothly transits from front to back gradually and downwards, and when the upper end of the jack rod 2 contacts with the latch bolt 31, the arc surface structure can prevent the latch bolt 31 from interfering with the upward moving state of the jack rod 2. For the convenience of installation, the mounting plate 1 is provided with a slot 14 for mounting the first elastic element 4, the first elastic element 4 is a spring, and a first end of the first elastic element abuts against the rear edge of the locking plate 3, and a second end of the first elastic element abuts against the rear edge of the slot 14.
The back of the mounting plate 1 of the present embodiment is provided with a photoelectric switch 30, and the back end of the locking plate 3 is provided with a photoelectric bar 34 extending backward and capable of triggering the photoelectric switch 30. This photoelectric switch 30 is controlled by same control program with the cleaning machine, and only when locking plate 3 is pushed back to the rearmost by ejector pin 2, photoelectric bar 34 will insert at photoelectric switch 30 and feed back the signal to the controller, and in this embodiment, ejector pin 2 will push locking plate 3 to the rearmost when locking to the state of unlocking transition, unblock to the state of locking transition, promptly: the photoelectric switch 30 can send a signal when the ejector rod 2 pushes the locking plate 3 backwards until the conversion of the positioning state of the positioning needle 5 can be completed smoothly, and the photoelectric switch 30 has the function of giving an action instruction to the push rod motor 20 through the controller at a proper time so as to drive the ejector rod 2 to move upwards or downwards, so that the phenomenon that the door body 9 is pushed out too high to cause hand clamping when the unlocking state is converted into the locking state is avoided. . The side wall of the box body 8 is provided with a microswitch 40 which is arranged close to the push rod motor 20, and the push rod motor 20 is provided with a shifting piece 201 which can trigger the microswitch 40 under the state that the push rod 2 moves up and down. When the door body 9 needs to be locked or unlocked, the upper end of the ejector rod 2 penetrates through the lock hole 11 and jacks up the door body 9, the poking piece 201 is positioned above a contact of the micro switch 40, and the micro switch 40 is in a disconnected state; when the mandril 2 moves downwards and the locking notch 21 on the mandril 2 is inserted and matched with the bolt 31 of the locking plate 3 to lock the door body 9 on the box body 8, the plectrum 201 is just propped against the contact of the micro switch 40, and the micro switch 40 is in a communicated state; when the door body 9 is opened, the lock rod 2 moves downwards and completely exits the lock hole 11, at this time, the plectrum 201 is positioned below the contact of the micro switch 40, and the micro switch 40 is in an off state. The microswitch 40 and the cleaning machine are controlled by the same control program, when the door body 9 is locked, the microswitch 40 is triggered, the cleaning program of the cleaning machine is allowed to be started, when the door body 9 is unlocked, the microswitch 40 cancels the triggering, the cleaning program of the cleaning machine is not allowed to be started, and the microswitch 40 and the photoelectric switch 30 act together to further improve the safety and the reliability of the cleaning machine.
When the door lock structure and the cleaning machine of the embodiment are used and needs to be locked, the upper end of the ejector rod 2 moves upwards and applies force to the first slider 62 and the second slider 63, the first slider 62 moves backwards and the third slider 63 moves forwards to drive the first connecting arm 611 of the swing arm 61 to swing backwards around the rotating shaft 610 as a center, so as to drive the locking plate 3 to move backwards, the positioning pin 5 enters the second slideway 325 from the first limit point 321 under the pushing of the locking plate 3, the limit of the locking plate 3 in the unlocked state is cancelled, the locking plate 3 moves forwards under the elastic force of the first elastic element 4, the positioning pin 5 slides backwards along the second slideway 325 until the bolt 31 at the front end of the locking plate 3 is inserted into the lock opening 21 of the ejector rod 2, at the moment, the positioning pin 5 just moves to the second limit point 322, and the position of the locking plate 3 in the locked state is limited; in the locked state, the microswitch 40 is triggered, and the washer program is allowed to turn on; when the lock needs to be unlocked, the top rod 2 moves upwards to apply force to the first slider 62 and the second slider 63, the first slider 62 moves backwards, the third slider 63 moves forwards, the first connecting arm 611 of the swing arm 61 swings backwards around the rotating shaft 610 as a center, so that the locking plate 3 is driven to move backwards, the positioning pin 5 is separated from the second limiting point 322 and slides into the first slide way 324, the position limitation of the locking plate 3 in a locking state is cancelled, and along with the backward movement of the locking plate 3, the positioning pin 5 gradually reaches the first limiting point 321 along the first slide way 324 to limit the position of the locking plate 3, at the moment, the lock tongue 31 is completely separated from the lock opening 21 on the lock rod 2 and retreats to the rear side of the lock hole 11, and the lock rod 2 can retreat from the lock hole 11 downwards to complete unlocking; in the unlocked state, the microswitch 40 is not triggered and the washer program is not allowed to turn on.
Claims (22)
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 located on the rear side of the locking hole (11) in a reciprocating mode relative to the locking hole (11), a locking tongue (31) capable of being inserted into the locking notch (21) in the forward moving state of the locking plate (3) is arranged at the front end of the locking plate (3), and a positioning groove (32) used for limiting the position of the locking plate (3) is formed in the locking plate (3);
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 positioning needle (5) can be inserted in the positioning groove (32) in a sliding manner and is matched with the positioning groove (32) to limit the position of the locking plate (3) in a locking and unlocking state; and
the trigger assembly (6) is movably arranged on the mounting plate (1) and can drive the locking plate (3) to move backwards under the jacking force of the jacking rod (2) so as to switch the locking and unlocking positions of the positioning needle (5) in the positioning groove (32);
the positioning needle (5) is vertically arranged, the positioning groove (32) at least has a slide way (320) only allowing the positioning needle (5) to slide in the positioning groove (32) in a single direction, a first limiting point (321) capable of being matched and limited with the positioning needle (5) in an unlocking state is formed at the front part of the slide way (320), and a second limiting point (322) capable of being matched and limited with the positioning needle (5) in a locking state is formed at the rear part of the slide way (320).
2. The door lock structure according to claim 1, wherein: the first limiting point (321) and the second limiting point (322) are arranged at intervals in a front-back mode, a limiting block (323) is arranged between the first limiting point and the second limiting point, the positioning groove (32) is provided with a first slide way (324) which bypasses the first side of the limiting block (323) and is used for communicating the first limiting point (321) with the second limiting point (322), and a second slide way (325) which bypasses the second side of the limiting block (323) and is used for communicating the first limiting point (321) with the second limiting point (322), and the first slide way (324), the first limiting point (321), the second slide way (325) and the second limiting point (322) are connected end to jointly enclose the slide way (320).
3. The door lock structure according to claim 2, wherein: along the slip direction of pilot pin (5) in slide (320), the slope of first slide (324), second slide (325) all increases gradually, and is being close to first limit point (321), second limit point (322) department is provided with the step that enables the slope of corresponding slide (320) precipitously descend.
4. The door lock structure according to claim 3, wherein: a first step (326) which is steeply reduced is formed at the position close to the tail end of the first slide way (324), a second step (327) which is steeply reduced is formed at the joint of the tail end of the first slide way (324) and the first limiting point (321), a third step (328) which is steeply reduced is formed at the joint of the first limiting point (321) and the starting end of the second slide way (325), and a fourth step (329) which is steeply reduced is formed at the joint of the tail end of the second slide way (325) and the second limiting point (322).
5. The door lock structure according to claim 3, wherein: the front end face of the limiting block (323) is concave backwards to form a limiting face (3231) which can abut against the positioning needle (5) so as to limit the position of the locking plate (3) in an unlocked state.
6. The door lock structure according to claim 3, wherein: the slide way (320) extends backwards from the second limit point (322) to form a limit groove (3221) which can be clamped by a positioning needle (5) so as to limit the position of the locking plate (3) in a locking state.
7. The door lock structure according to claim 6, wherein: the tail end of the first slide way (324) and the starting end of the second slide way (325) respectively extend forwards so as to form a Y-shaped structure together with the slide way (320) and the limiting groove (3221).
8. The door lock structure according to claim 7, wherein: the tail end of the first slide way (324) and the part extending forwards from the starting end of the second slide way (325) are horizontally arranged.
9. The door lock structure according to any one of claims 1 to 8, wherein: the first end vertical arrangement of pilot pin (5) and stretch into in slide (320) with slide (320) direction cooperation, the second end of pilot pin (5) is retrained on mounting panel (1) through second elastic component (10).
10. The door lock structure according to claim 9, wherein: the mounting plate (1) is provided with a boss (12) arranged corresponding to the lower wall surface of the locking plate (3), the boss (12) is provided with a mounting hole (121) which is penetrated up and down, the second end of the positioning needle (5) is bent downwards and inserted into the mounting hole (121), the first end of the second elastic piece (10) is buckled on the boss (12) and presses and holds the second end of the positioning needle (5) below, and the second elastic piece (10) is provided with a through hole (101) through which the positioning needle (5) passes so as to be exposed above the second elastic piece (10).
11. The door lock structure according to claim 10, wherein: the second elastic piece (10) is provided with a groove (102) which is used for embedding the boss (12) at a position close to the first end, the mounting plate (1) is provided with a strip-shaped opening (13) positioned at the front side of the mounting hole (121), and the edge of the first end of the second elastic piece (10) is inserted into the strip-shaped opening (13).
12. The door lock structure according to claim 10, wherein: the second end of the second elastic piece (10) is bent upwards and forwards to form an elastic piece (103) capable of abutting against the lower side of the positioning needle (5), and the elastic piece (103) enables the part vertically arranged on the positioning needle (5) to always keep a trend of moving upwards.
13. The door lock structure according to any one of claims 1 to 8, wherein: trigger subassembly (6) include swing arm (61) and slider, swing arm (61) can be located on mounting panel (1) with rotating and be connected with lockplate (3) and slider rotation respectively, the slider can be located mounting panel (1) with the back-and-forth movement and the front end is formed with the inclined plane that can cooperate the slip with ejector pin (2) upper end.
14. The door lock structure according to claim 13, wherein: the swing arm (61) is provided with a first connecting arm (611) arranged towards the locking plate (3) and a second connecting arm (612) arranged opposite to the first connecting arm (611), the end part of the first connecting arm (611) is rotatably connected with the locking plate (3), the slider comprises a first slider (62) and a second slider (63), the rear end of the first slider (62) is rotatably connected with the middle part of the first connecting arm (611), the front end of the first slider (62) is positioned above the locking hole (11) and is provided with a first inclined surface (621) arranged corresponding to the rear part of the locking hole (11), the rear end of the second slider (63) is rotatably connected with the second connecting arm (612), and the front end of the second slider (63) is positioned above the locking hole (11) and is provided with a second inclined surface (631) arranged corresponding to the front part of the locking hole (11).
15. The door lock structure according to claim 14, wherein: the first inclined plane (621) is gradually inclined backwards from top to bottom, and the second inclined plane (631) is gradually inclined forwards from top to bottom.
16. The door lock structure according to claim 14, wherein: the first sliding block (62) is arranged in an L shape, a transverse part (622) of the L-shaped first sliding block (62) abuts against the front end face of the locking plate (3), and the lock tongue (31) is located below the first inclined surface (621) and the second inclined surface (631).
17. The door lock structure according to claim 14, wherein: the middle of the swing arm (61) is rotatably connected to the mounting plate (1) through a rotating shaft (610), a first connecting shaft (6111) which is vertically arranged and located at the end portion and a second connecting shaft (6112) located at the middle portion are arranged on the first connecting arm (611), a first positioning hole (33) for the first connecting shaft (6111) to be inserted in a rotating mode is formed in the side wall of the locking plate (3), a second positioning hole (623) which extends transversely and is used for the second connecting shaft (6112) to be inserted in a rotating mode is formed in the rear end of the first sliding block (62), a third connecting shaft (6121) which is vertically arranged is arranged on the second connecting arm (612), and a third positioning hole (632) which extends transversely and is used for the third connecting shaft (6121) to be inserted in a rotating mode is formed in the rear end of the second sliding block (63).
18. The door lock structure according to any one of claims 1 to 8, wherein: the lower end surface of the bolt (31) is formed into an arc surface (311) which is smoothly transited from front to back gradually downwards.
19. The door lock structure according to any one of claims 1 to 8, wherein: the mounting plate (1) is provided with a clamping groove (14) used for mounting the first elastic piece (4), the first elastic piece (4) is a spring, the first end of the first elastic piece is abutted against the rear edge of the locking plate (3), and the second end of the first elastic piece is abutted against the rear edge of the clamping groove (14).
20. A cleaning machine with the door lock structure of any one of claims 1 to 19, 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).
21. The cleaning machine of claim 20, wherein: the rear part of the mounting plate (1) is provided with a photoelectric switch (30), and the rear end of the locking plate (3) is provided with a photoelectric blocking rod (34) which extends backwards and can trigger the photoelectric switch (30).
22. The cleaning machine of claim 21, wherein: the side wall of the box body (8) is provided with a driving piece capable of driving the ejector rod (2) to move up and down and a microswitch (40) arranged close to the driving piece, and the driving piece is provided with a shifting piece (201) capable of triggering the microswitch (40) in a state that the ejector rod (2) moves up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541294.1A CN112112494B (en) | 2019-06-21 | 2019-06-21 | Door lock structure and cleaning machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541294.1A CN112112494B (en) | 2019-06-21 | 2019-06-21 | Door lock structure and cleaning machine with same |
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| CN112112494A CN112112494A (en) | 2020-12-22 |
| CN112112494B true CN112112494B (en) | 2022-01-21 |
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| CN201910541294.1A Active CN112112494B (en) | 2019-06-21 | 2019-06-21 | Door lock structure and cleaning machine with same |
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| CN (1) | CN112112494B (en) |
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| CN112112494A (en) | 2020-12-22 |
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