CN112796589A

CN112796589A - Door lock structure, cleaning machine applying door lock structure and door locking method

Info

Publication number: CN112796589A
Application number: CN201911112095.5A
Authority: CN
Inventors: 王式兴; 徐慧; 朱开杰; 李帅; 黄兆钱; 黎子兵; 顾洪良; 郑峰; 王吉
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2021-05-14
Anticipated expiration: 2039-11-14
Also published as: CN112796589B

Abstract

The invention relates to a door lock structure, a cleaning machine applying the door lock structure and a door locking method. The door lock structure can be integrally arranged on the box body, does not occupy the space on the door body, only needs to arrange the locking notch on the door body, and has reasonable structure and convenient assembly; when the door lock structure is used for locking a door, the upper end of the lock rod penetrates through a lock opening in the door body, then the lock rod rotates by a moving angle relative to the lock opening, and the lock rod is pulled downwards to be locked with the lock opening of the door body in a staggered mode, so that the reliability of the locked process is better.

Description

Door lock structure, cleaning machine applying door lock structure and door locking method

Technical Field

The invention relates to a door lock structure, a cleaning machine applying the door lock structure and a door locking method.

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 tableware washing machine by the structure, the locking structure is complex and the reliability is low; moreover, when the lock is used for locking a door on a box body with an inner cavity, a part of the structure of the door needs to be installed on the door body, and the lock has the problem of inconvenient assembly for the structure that the door body is thinner.

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

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a door lock structure which is reasonable in structural matching and convenient to assemble, aiming at the current situation of the prior art.

The second technical problem to be solved by the invention is to provide a cleaning machine applying the door lock structure, aiming at the current situation of the prior art, the cleaning machine can completely install the door lock structure on the box body without occupying the space of the door body, and is convenient to assemble.

The third technical problem to be solved by the invention is to provide a door locking method of the cleaning machine, aiming at the current situation of the prior art, the method realizes dislocation locking by rotating the lock rod relative to the door body, and has good reliability.

The technical scheme adopted by the invention for solving the technical problems is as follows: a door lock structure characterized in that: comprises a bracket which is used for connecting with a box body;

the lock rod can be vertically lifted and rotationally constrained on the bracket, and the upper end of the lock rod is provided with a limiting block which can penetrate through a locking notch on the door body;

the first driving assembly is arranged on the bracket and used for driving the locking rod to lift up and down; and

the second driving assembly is arranged on the support and used for driving the lock rod to rotate relative to the lock opening so that the limiting blocks and the upper side of the lock opening are staggered and limited.

In the above scheme, first drive assembly includes first driving piece, screw rod, nut pair and lock tube, screw rod vertical arrangement, first driving piece is used for driving the screw rod and rotates, the nut pair can be put outside the screw rod with the cover of rotating and rotate along with the screw rod and reciprocate, the lock tube is connected with the nut pair, locking lever sub-unit connection is on the lock tube and along with lock tube simultaneous movement. Through such a structure, the locking rod can be driven to stably move up and down conveniently.

Preferably, the output end of the first driving piece is provided with a speed reducing mechanism, the output end of the speed reducing mechanism is connected with the screw rod, a first shell sleeved outside the nut pair is arranged outside the speed reducing mechanism, and the lower part of the lock sleeve is inserted into the first shell from the upper end of the first shell and is in axial limit connection with the nut pair. The speed reducing mechanism adopts a worm and gear matched speed reducing mechanism, and the transmission is stable. The inner wall epirelief of first shell is equipped with along the first gib block of axial extension, and is corresponding, it has the first spout with this first gib block direction complex to open on the vice periphery wall of nut. The first shell can limit the nut pair in the radial direction, only allows the nut pair to move up and down, and prevents the nut pair from rotating in the circumferential direction.

Preferably, the peripheral wall of the upper part of the nut pair is provided with an annular groove arranged along the circumferential direction, correspondingly, the inner wall of the lock sleeve is convexly provided with a limiting piece capable of being inserted into the annular groove, and the limiting piece can simply adopt a screw structure. The lock sleeve and the nut pair can be axially limited in the matching mode, namely, the lock sleeve is allowed to rotate circumferentially relative to the nut pair, so that the lock sleeve moves synchronously along with the axial movement of the nut pair, the lock rod is driven to move up and down, and interference is not caused on the circumferential rotation of the lock rod.

In each scheme, the second driving assembly comprises a twisting ring, a connecting rod, a sliding piece and a second driving piece, the twisting ring is sleeved outside the lock sleeve and is in radial limiting connection with the lock sleeve, the first end of the connecting rod is in rotary connection with the twisting ring, the second end of the connecting rod is in rotary connection with the first end of the sliding piece, the sliding piece can be arranged on the support in a manner of being perpendicular to the axial reciprocating movement of the lock sleeve, and the second driving piece is used for driving the sliding piece to reciprocate. The structure is convenient for driving the lock rod to rotate in the circumferential direction, so that the limiting block at the upper end of the lock rod can be staggered and limited with the lock opening.

Preferably, the outer wall of the lock sleeve is convexly provided with a second guide strip extending along the axial direction, and correspondingly, the inner wall of the twisting ring is provided with a second sliding groove for inserting the second guide strip and guiding and matching with the second guide strip. The structure is to drive the lock sleeve to rotate when the twisting ring rotates, so that the lock rod can rotate without influencing the up-and-down movement of the lock rod.

In order to facilitate the assembly and realize the rotation of twisting the ring, the lock sleeve periphery cover has been put and can carry out the spacing second shell of axial to twisting the ring, the wrench movement arm that outwards extends has on twisting the periphery wall of ring, it has the hole of stepping down that supplies this wrench movement arm to stretch out to open on the second shell, and should step down the hole and extend the formation along second shell circumference and allow the wobbling slot hole of wrench movement arm, twisting the arm and rotating with the first end of connecting rod and being connected.

The door body is provided with the photoelectric switch which can send signals to the control system when the lock rod penetrates through the lock opening and send signals to the control system when the limiting block on the lock rod and the upper edge of the lock opening are staggered, and the side part of the second driving component is provided with the microswitch which can send signals to the control system when the second driving component drives the lock rod to twist for a certain angle. By adopting the arrangement, the door locking process can be controlled more strictly, and the door locking process is more reliable and stable.

The utility model provides an use cleaning machine that has above-mentioned lock mechanism, includes the box and the door body, the corresponding edge of port on the box is connected in the edge rotation of the door body, its characterized in that: the door lock structure is arranged on the outer side wall of the box body, the lock rod is vertically arranged, a lock opening through which the upper end of the lock rod penetrates is formed in the door body, and the photoelectric switch is arranged above the lock opening and close to the edge of the lock opening. The cleaning machine can completely install the door lock structure on the box body without occupying the space of the door body, and is convenient to assemble.

A door locking method of the cleaning machine is characterized in that:

when the door body is closed relative to the box body, the first driving assembly drives the lock rod to move upwards, and when the limiting block at the upper end of the lock rod penetrates through the lock opening in the door body and triggers the photoelectric switch, the photoelectric switch sends a limiting number to the control system, and the first driving assembly stops running;

the control system sends a signal to the second driving assembly, the second driving assembly drives the lock rod to rotate, when the lock rod rotates until a limiting block at the upper end of the lock rod is staggered with the lock notch, the photoelectric switch is cancelled, the photoelectric switch sends a signal to the control system again, and the second driving assembly stops running;

the control system sends a signal to the first driving assembly, the first driving assembly drives the lock rod to move downwards, and the limiting block at the upper end of the lock rod presses the door body downwards to the upper port of the door body and the upper port of the box body to be locked, so that the door locking process is completed.

Compared with the prior art, the invention has the advantages that: the door lock structure can be integrally arranged on the box body, does not occupy the space on the door body, only needs to arrange the locking notch on the door body, and has reasonable structure and convenient assembly; when the door lock structure is used for locking a door, the upper end of the lock rod penetrates through a lock opening in the door body, then the lock rod rotates by a moving angle relative to the lock opening, and the lock rod is pulled downwards to be locked with the lock opening of the door body in a staggered mode, so that the reliability of the locked process is better.

Drawings

FIG. 1 is a schematic view of a door lock according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a partially exploded view of FIG. 2;

FIG. 4 is a schematic structural diagram of a cleaning machine according to an embodiment of the present invention;

fig. 5 is an enlarged schematic view of a portion a in fig. 4.

Detailed Description

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

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.

As shown in fig. 1-5, the door lock structure of this embodiment includes support 1, locking lever 2, first drive assembly 3 and second drive assembly 4, and on the lateral wall of box 5 was established to support 1, be used for installing above-mentioned locking lever 2, first drive assembly 3 and second drive assembly 4, locking lever 2 can oscilaltion and retrain on support 1 with rotating, and locking lever 2 vertical arrangement and upper end have can pass the stopper 21 of fore shaft 91 on the door body 9. The first driving assembly 3 is arranged on the support 1 and used for driving the locking rod 2 to ascend and descend, and the second driving assembly 4 is arranged on the support 1 and used for driving the locking rod 2 to rotate relative to the locking notch 91 so that the limiting block 21 and the door body 9 on the upper side of the locking notch 91 are partially staggered and limited.

As shown in fig. 2 and 3, the first driving assembly 3 includes a first driving member 31, a screw rod 32, a nut pair 33, a lock sleeve 34 and a first housing 35, the screw rod 32 is vertically disposed, the first driving member 31 is a motor for driving the screw rod 32 to rotate, the nut pair 33 is rotatably sleeved outside the screw rod 32 and moves up and down with the rotation of the screw rod 32, the lock sleeve 34 is connected with the nut pair 33, and the lower portion of the lock rod 2 is connected to the lock sleeve 34 and moves synchronously with the lock sleeve 34. With this structure, the lock lever 2 can be driven to move up and down stably. The output end 311 of the first driving member 31 is provided with a speed reducing mechanism 312, the speed reducing mechanism 312 adopts a worm and gear matched speed reducing structure, the output end of the speed reducing mechanism 312 is connected with the screw rod 32, a first outer shell 35 sleeved outside the nut pair 33 is arranged outside the speed reducing mechanism 312, and the lower part of the lock sleeve 34 is inserted into the first outer shell 35 from the upper end thereof and is in axial limit connection with the nut pair 33. The inner wall of the first housing 35 is convexly provided with a first guide bar 351 extending along the axial direction, and correspondingly, the outer peripheral wall of the nut pair 33 is provided with a first sliding groove 331 which is in guiding fit with the first guide bar 351. The first housing 35 may provide a radial stop for the nut pair 33, allowing only the nut pair 33 to move up and down while preventing circumferential rotation of the nut pair 33. An annular groove 332 arranged along the circumferential direction is formed in the outer circumferential wall of the upper portion of the nut pair 33, correspondingly, a limiting member 341 capable of being inserted into the annular groove 332 is convexly arranged on the inner wall of the lock sleeve 34, and the limiting member 341 can simply adopt a screw structure. The lock sleeve 34 and the nut pair 33 can be axially limited in such a matching manner, that is, the lock sleeve 34 is allowed to rotate circumferentially relative to the nut pair 33, so that the lock sleeve 34 moves synchronously with the axial movement of the nut pair 33, and the lock rod 2 is driven to move up and down without interfering with the circumferential rotation of the lock rod 2.

As shown in fig. 1 and 2, the second driving assembly 4 includes a twisting ring 41, a connecting rod 42, a sliding member 43, and a second driving member 44, the twisting ring 41 is disposed outside the lock sleeve 34 and is connected to the lock sleeve 34 in a radial limiting manner, a first end of the connecting rod 42 is connected to the twisting ring 41 in a rotating manner, a second end of the connecting rod 42 is connected to a first end of the sliding member 43 in a rotating manner, the sliding member 43 is disposed on the bracket 1 in a manner of being capable of axially reciprocating in a direction perpendicular to the lock sleeve 34, the second driving member 44 is configured to drive the sliding member 43 to reciprocate, and the second driving member 44 may be a solenoid driving mechanism or a motor. The structure is convenient for driving the lock rod 2 to rotate in the circumferential direction, so that the limiting block 21 at the upper end of the lock rod 2 can be staggered and limited with the locking notch 91. The outer wall of the lock sleeve 34 is convexly provided with a second guiding strip 342 extending along the axial direction, and correspondingly, the inner wall of the twisting ring 41 is provided with a second sliding groove 411 for the second guiding strip 342 to insert and be in guiding fit with. This structure is to enable the twisting ring 41 to rotate the lock sleeve 34 when rotating, thereby rotating the lock lever 2 without affecting the up-and-down movement of the lock lever 2.

In order to facilitate the assembly and the rotation of the twist ring 41, a second housing 45 capable of axially limiting the twist ring 41 is disposed around the lock sleeve 34, and the lower end of the second housing 45 is fixed to the upper end of the first housing 35 by screws. The outer peripheral wall of the twisting ring 41 is provided with a twisting arm 412 extending outwards, an abdicating hole 451 for the twisting arm 412 to extend out is formed between the lower end of the second casing 45 and the upper end of the first casing 35, the abdicating hole 451 extends along the circumferential direction of the second casing 45 to form a long hole for allowing the twisting arm 412 to swing, and the twisting arm 412 is rotatably connected with the first end of the connecting rod 42.

In this embodiment, the door 9 is provided with a photoelectric switch 100 which can send a signal to the control system when the lock rod 2 passes through the lock opening 91, and send a signal to the control system when the stop block 21 on the lock rod 2 and the upper edge of the lock opening 91 are staggered. The bracket 1 is provided with a microswitch 200 which can send a signal to a control system when the second driving component 4 drives the lock rod 2 to twist a certain angle. The microswitch 200 is arranged on one side of the sliding piece 43, and the sliding piece 43 forms a slope 431 which can be matched with the trigger piece 201 of the microswitch 43 on the side wall close to the microswitch 200. By adopting the arrangement, the door locking process can be controlled more strictly, and the door locking process is more reliable and stable.

As shown in fig. 4 and 5, the cleaning machine applied with the door lock mechanism in this embodiment includes a box 8 and a door 9, and one edge of the door 9 is rotatably connected to a corresponding edge of an upper port of the box 8. Door lock structure a locates on the lateral wall of box 8 and locking lever 2 vertical layout, and it has the fore shaft 91 that supplies locking lever 2 upper end to pass to open on the door body 9, and photoelectric switch 100 locates the fore shaft 91 top and is close to the fore shaft 91 edge and arranges.

When the cleaning machine is used and a door needs to be locked:

when the door body 9 is closed relative to the box body 8, the first driving component 3 drives the lock rod 2 to move upwards through the matching of the screw rod 32 and the nut pair 33, when the limiting block 21 at the upper end of the lock rod 2 penetrates through the lock opening 91 on the door body 9 and triggers the photoelectric switch 100, the photoelectric switch 100 sends a limiting number to the control system, and the first driving component 3 stops running;

the control system sends a signal to the second driving assembly 4, the second driving assembly 4 drives the locking rod 2 to rotate through the twisting of the twisting ring 41, when the locking rod 2 rotates until the limiting block 21 at the upper end of the locking rod 2 is dislocated with the locking notch 91, the photoelectric switch 100 cancels the triggering on the photoelectric switch 100, the photoelectric switch 100 sends a signal to the control system again, and the second driving assembly 4 stops running;

the control system sends a signal to the first driving assembly 3, the first driving assembly 3 drives the lock rod 2 to move downwards, and the limit block 21 at the upper end of the lock rod 2 presses the door body 9 downwards until the door body 9 is locked with the upper port of the box body 8, so that the door locking process is completed;

when the door needs to be opened:

an unlocking switch on the door body 9 is pressed, the first driving assembly 3 drives the locking rod 2 to move upwards through the matching of the screw rod 32 and the nut pair 33, and the locking of the door body 9 and the box body 8 is cancelled;

the second driving component 4 drives the locking rod 2 to rotate through the twisting of the twisting ring 41, when the locking rod 2 rotates until the limiting block 21 at the upper end of the locking rod is aligned with the locking notch 91, the photoelectric switch 100 is triggered, the photoelectric switch 100 sends a limit number to the control system, and the second driving component 4 stops running;

the control system sends a signal to the first driving component 3, the first driving component 3 drives the locking rod 2 to move downwards through the matching of the screw rod 32 and the nut pair 33, when the locking rod 2 exits the locking notch 91 downwards, the triggering on the photoelectric switch 100 is cancelled, the photoelectric switch 100 sends a limit signal to the control system, and the first driving component 3 stops running;

at this time, the door 9 can be opened with respect to the box 8.

The embodiment of the present invention is exemplified by a washing machine having a top-opening door body, and therefore, in the description and claims of the present embodiment, directional terms such as "upper", "lower", "left", "right", "side" and the like are used, but these directional terms merely indicate relative positional relationships and are not limited to absolute directions, for example, "upper" and "lower" are not limited to directions opposite to or coincident with the direction of gravity, but are mainly relative to the direction of movement of the door body.

In fact, the structure of the present invention is equally applicable to cleaning machines with side-opening doors and other electrical appliances, and the directional terms in this document should be understood as adaptive adaptation.

Claims

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

The bracket (1) is used for being connected with the box body (8);

the lock rod (2) can be vertically lifted and rotationally constrained on the support (1), and the upper end of the lock rod (2) is provided with a limiting block (21) which can penetrate through an upper lock opening (91) of the door body (9);

the first driving assembly (3) is arranged on the bracket (1) and is used for driving the locking rod (2) to lift up and down; and

the second driving assembly (4) is arranged on the support (1) and used for driving the lock rod (2) to rotate relative to the lock opening (91) so that the limiting block (21) and the lock opening (91) are limited in an upper-side staggered mode.

2. The door lock structure according to claim 1, wherein: first drive assembly (3) include first driving piece (31), screw rod (32), the nut is vice (33) and lock sleeve (34), screw rod (32) vertical arrangement, first driving piece (31) are used for driving screw rod (32) and rotate, nut is vice (33) can be rotationally set outside screw rod (32) and rotate and reciprocate along with screw rod (32), lock sleeve (34) are vice (33) with the nut and are connected, locking lever (2) sub-unit connection is on lock sleeve (34) and along with lock sleeve (34) synchronous motion.

3. The door lock structure according to claim 2, wherein: the output end (311) of the first driving piece (31) is provided with a speed reducing mechanism (312), the output end of the speed reducing mechanism (312) is connected with the screw (32), a first shell (35) sleeved outside the nut pair (33) is arranged outside the speed reducing mechanism (312), and the lower part of the lock sleeve (34) is inserted into the first shell (35) from the upper end of the first shell and is axially limited and connected with the nut pair (33).

4. The door lock structure according to claim 3, wherein: an annular groove (332) arranged along the circumferential direction is formed in the outer circumferential wall of the upper portion of the nut pair (33), and correspondingly, a limiting piece (341) capable of being inserted into the annular groove (332) is arranged on the inner wall of the lock sleeve (34) in a protruding mode.

5. The door lock structure according to claim 3, wherein: the inner wall of the first shell (35) is convexly provided with a first guide strip (351) extending along the axial direction, and correspondingly, the peripheral wall of the nut pair (33) is provided with a first sliding groove (331) matched with the first guide strip (351) in a guiding way.

6. The door lock structure according to any one of claims 2 to 5, wherein: the second driving assembly (4) comprises a twisting ring (41), a connecting rod (42), a sliding piece (43) and a second driving piece (44), the twisting ring (41) is sleeved outside the lock sleeve (34) and is radially limited and connected with the lock sleeve (34), the first end of the connecting rod (42) is rotatably connected with the twisting ring (41), the second end of the connecting rod (42) is rotatably connected with the first end of the sliding piece (43), the sliding piece (43) can be arranged on the support (1) in a manner of being perpendicular to the axial reciprocating movement of the lock sleeve (34), and the second driving piece (44) is used for driving the sliding piece (43) to reciprocate.

7. The door lock structure according to claim 6, wherein: the outer wall of the lock sleeve (34) is convexly provided with a second guide strip (342) extending along the axial direction, and correspondingly, the inner wall of the twisting ring (41) is provided with a second sliding groove (411) for the second guide strip (342) to insert and to be in guide fit with.

8. The door lock structure according to claim 6, wherein: the utility model discloses a swing arm's (412) swing arm, including first shell (41), the lock sleeve (34) periphery cover has been put and can be carried out the spacing second shell (45) of axial to twisting ring (41), twisting ring (41) peripheral wall is gone up to have outwards extended twisting arm (412), it has the hole of stepping down (451) that supplies this twisting arm (412) to stretch out to open on second shell (45), and this hole of stepping down (451) form along second shell (45) circumference extension and allow the slot hole of twisting arm (412) wobbling, twisting arm (412) and connecting rod (42) first end rotation connection.

9. The door lock structure according to any one of claims 2 to 5, wherein: the door body (9) is provided with a photoelectric switch (100) which can send a signal to a control system when the lock rod (2) passes through the lock opening (91) and send a signal to the control system when a limiting block (21) on the lock rod (2) and the upper edge of the lock opening (91) are staggered, and the side part of the second driving component (4) is provided with a microswitch (200) which can send a signal to the control system when the locking rod (2) is driven to twist by a certain angle.

10. A cleaning machine using the door lock mechanism according to claim 9, comprising a box body (8) and a door body (9), wherein one edge of the door body (9) is rotatably connected to the corresponding edge of the upper port of the box body (8), and the cleaning machine is characterized in that: the door lock structure is arranged on the outer side wall of the box body (8) and the lock rod (2) is vertically arranged, a lock opening (91) through which the upper end of the lock rod (2) penetrates is formed in the door body (9), and the photoelectric switch (100) is arranged above the lock opening (91) and close to the edge of the lock opening (91).

11. A method of locking a door of a washing machine according to claim 10, wherein:

when the door body (9) is closed relative to the box body (8), the first driving component (3) drives the lock rod (2) to move upwards, when a limiting block (21) at the upper end of the lock rod (2) penetrates through a lock opening (91) in the door body (9) and triggers the photoelectric switch (100), the photoelectric switch (100) sends a limiting signal to the control system, and the first driving component (3) stops running;

the control system sends a signal to the second driving assembly (4), the second driving assembly (4) drives the lock rod (2) to rotate, when the lock rod (2) rotates to the state that the limiting block (21) at the upper end of the lock rod is staggered with the lock notch (91), the photoelectric switch (100) cancels the triggering on the photoelectric switch (100), the photoelectric switch (100) sends a signal to the control system again, and the second driving assembly (4) stops running;

the control system sends a signal to the first driving assembly (3), the first driving assembly (3) drives the lock rod (2) to move downwards, and the limiting block (21) at the upper end of the lock rod (2) presses the door body (9) downwards to the upper port of the door body (9) and the upper port of the box body (8) to be locked, so that the door locking process is completed.