CN111980498A

CN111980498A - Locking mechanical system and clothing treatment facility

Info

Publication number: CN111980498A
Application number: CN201910425953.5A
Authority: CN
Inventors: 杨乐; 李峰; 姜永富; 吴建新
Original assignee: Qingdao Haier Washing Machine Co Ltd; Qingdao Haier Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Qingdao Haier Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-11-24
Anticipated expiration: 2039-05-21
Also published as: CN111980498B

Abstract

The invention discloses a locking mechanism and a clothes treatment device. The locking mechanism is used for locking the first fixing piece and the second fixing piece and comprises a lock tongue, a locking groove and a driving assembly, and the lock tongue is arranged on the first fixing piece; the locking groove is arranged on the second fixing piece; the driving assembly is configured to drive the lock tongue to slide into the second fixing piece and rotate into the locking groove to lock the first fixing piece and the second fixing piece. This locking mechanical system is at the locking in-process, and the spring bolt slides in the second mounting earlier, later changes over into locking groove cooperation for required space reduces when the spring bolt rotates, is favorable to reducing the size of second mounting.

Description

Locking mechanical system and clothing treatment facility

Technical Field

The invention relates to the technical field of household appliances, in particular to a locking mechanism and clothes treatment equipment.

Background

A washing machine is a cleaning appliance that washes laundry using mechanical action generated by electric energy. The washing machine includes a washing chamber in which laundry is placed, the laundry, water and detergent are placed in the washing chamber, and the laundry is washed by a mechanical action.

During the washing process of the clothes, the opening of the washing cavity is closed by the upper cover. In order to avoid safety accidents caused by the fact that the upper cover is opened during washing and a user stretches his hand into the rotating washing machine, the upper cover needs to be locked on the washing machine main body through a locking mechanism during the operation of the washing machine. Among the current locking mechanical system, the hasp stretches into the upper cover through the mode of upwards rotating, and the hasp is at a vertical plane internal rotation promptly for the thickness of upper cover needs to be greater than the radius of rotation of hasp, leads to the thickness of upper cover great, can't realize frivolous design.

Disclosure of Invention

An object of the present invention is to provide a lock mechanism that facilitates reduction in thickness of an upper cover.

In order to achieve the purpose, the invention adopts the following technical scheme:

a locking mechanism for locking a first fixture to a second fixture, comprising:

the lock tongue is arranged on the first fixing piece;

the locking groove is arranged on the second fixing piece; and

a driving assembly configured to drive the locking bolt to slide into the second fixing piece and to rotate into the locking groove to lock the first fixing piece and the second fixing piece.

The first fixing piece is provided with a containing groove used for containing the lock tongue, and the cross section shape and the size of the containing groove are the same as those of the lock tongue.

The second fixing piece faces one side of the first fixing piece and is provided with an avoiding groove, the driving assembly drives the spring bolt to slide into the avoiding groove, and the locking groove is formed in the side wall of the avoiding groove.

Wherein, dodge inslot elastic connection and have the clamp plate, the cross sectional shape and the size of clamp plate are the same with the open-ended cross sectional shape and the size of dodging the groove the spring bolt does not get into when dodging the groove, the clamp plate orientation the surface of first mounting be configured into with the second mounting orientation the surface parallel and level of first mounting.

Wherein the drive assembly comprises:

the movable rod penetrates through the first fixing piece in a sliding mode and can rotate relative to the first fixing piece, and one end of the movable rod is connected with the spring bolt.

Wherein the drive assembly further comprises:

the guide groove is arranged on the movable rod and forms an included angle with the sliding direction of the movable rod; and

the guide block can slide along the guide groove, and the guide block drives the movable rod to slide when sliding along the guide groove.

Wherein the drive assembly further comprises:

The guide block is arranged on the sliding part, and a rack is arranged on the sliding part; and

the gear, the gear set up in the movable rod, work as the spring bolt slide to with the locking groove is just to the time, the guide block breaks away from the guide way, just the rack with gear engagement.

Wherein the drive assembly further comprises:

an electromagnetic coil;

the iron core penetrates through the electromagnetic coil and is connected with the sliding piece; and

an elastic reset member configured to drive the iron core to reset.

Wherein the locking mechanism further comprises:

the box body, drive assembly set up in the box body, the movable rod is connected the one end of spring bolt stretches out outside the box body.

Another object of the present invention is to propose a laundry treating apparatus in which a locking mechanism facilitates reduction in thickness of an upper cover.

the clothes treatment equipment comprises a disk seat and an upper cover arranged on the disk seat, and further comprises the locking mechanism, wherein the disk seat and the upper cover are locked through the locking mechanism.

Has the advantages that: the invention provides a locking mechanism and a clothes treatment device. This locking mechanical system is at the locking in-process, and the spring bolt slides in the second mounting earlier, later changes over into locking groove cooperation for required space reduces when the spring bolt rotates, is favorable to reducing the size of second mounting.

Drawings

FIG. 1 is a schematic structural view of the assembled upper cover and tray provided by the present invention;

FIG. 2 is a schematic structural diagram of a disk seat provided by the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a partial cross-sectional view of the upper cover, tray and locking mechanism of the present invention shown assembled;

FIG. 5 is a schematic structural view of a locking mechanism provided by the present invention;

FIG. 6 is an exploded view of the locking mechanism provided by the present invention;

FIG. 7 is an exploded view of the locking mechanism provided by the present invention;

fig. 8 is a first structural schematic diagram of the assembled driving assembly and the bolt provided by the invention;

fig. 9 is a second structural schematic diagram of the lock mechanism and the bolt provided by the invention after assembly.

Wherein:

1. an upper cover; 11. a locking groove; 12. an avoidance groove; 2. a tray seat; 21. a throwing port; 3. a latch bolt; 4. a drive assembly; 41. a movable rod; 411. a guide groove; 421. an electromagnetic coil; 422. an iron core; 43. a slider; 431. a clamping groove; 432. a guide block; 433. a guide hole; 44. an elastic reset member; 45. a gear; 46. a rack; 5. a box body; 51. an upper shell; 52. a lower case; 521. a guide bar; 6. pressing a plate; 7. a first spring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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. Wherein the terms "first position" and "second position" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The present embodiment provides a laundry treating apparatus, such as a washing machine. The washing machine comprises a main body and an upper cover, wherein a cleaning cavity is arranged in the main body, and the upper cover is used for closing an opening of the cleaning cavity. When the washing machine works, clothes, water, detergent and the like are placed in the cleaning cavity to complete washing, rinsing and/or dewatering operations.

Specifically, the main body includes a housing and a tub provided in the housing, the tub forming a washing chamber therein. As shown in fig. 1 and 2, the main body further includes a tray 2, the tray 2 is disposed at the upper end of the casing, the tray 2 is provided with a feeding opening 21, the feeding opening 21 is opposite to an opening of the washing tub, the outer peripheral surface of the tray 2 is connected with the casing to isolate the rotatable washing tub inside the casing, so as to play a role of safety protection, and meanwhile, the tray 2 is provided with a washing machine operation panel for controlling the washing machine to complete washing, rinsing and/or dewatering operations.

In this embodiment, the upper cover 1 is covered above the tray base 2, and one end of the upper cover 1 is rotatably connected to the tray base 2 so as to open or close the opening of the washing tub. In order to ensure the use safety, the clothes treatment equipment also comprises a locking mechanism, when the washing machine works, the locking mechanism locks the upper cover 1 on the tray seat 2, and the safety accident caused by the fact that a user stretches a hand into the washing tub when the washing tub rotates is avoided. The locking mechanism comprises a bolt 3, a locking groove 11 and a driving assembly 4. Spring bolt 3 and drive assembly 4 set up in the main part, and locking groove 11 sets up on upper cover 1, and drive assembly 4 drive spring bolt 3 removes to spring bolt 3 and locking groove 11 cooperation realize the locking of upper cover 1 and main part.

Among the prior art, the spring bolt stretches into in the upper cover and the locking groove cooperation through the mode of upwards rotating, and for satisfying the rotatory required space of spring bolt, the thickness of upper cover needs to be greater than the turning radius of spring bolt, leads to the thickness of upper cover great, can't realize frivolous design.

In order to solve the above problem, in this embodiment, as shown in fig. 3, the latch 3 is disposed on the tray seat 2 (i.e., the first fixing element), and the latch 3 firstly slides into the upper cover 1 (i.e., the second fixing element) by sliding, and then rotates into the locking groove 11 by rotating, so as to lock the upper cover 1 and the tray seat 2. Compare among the prior art, the spring bolt is direct through rotating with locking groove 11 cooperations, and this embodiment can reduce the turning radius of spring bolt 3 through sliding and pivoted cooperation, and upper cover 1 only need can hold spring bolt 3 can, be favorable to reducing the size of upper cover 1.

As shown in fig. 2 and 3, in the present embodiment, the latch 3 is a horizontally disposed plate-shaped structure, the upper cover 1 is stacked on the tray base 2, and the latch 3 slides in the up-down direction shown in fig. 3. When locking upper cover 1, spring bolt 3 upwards slides in upper cover 1, later in horizontal plane rotation with locking groove 11 cooperation for upper cover 1's thickness (along the size of upper and lower direction) only need be greater than spring bolt 3's thickness (along the size of upper and lower direction) can, can further reduce upper cover 1's size, realize frivolous design.

In order to ensure the normal covering of the upper cover 1, the height of the lock tongue 3 in the vertical direction in the unlocked state should not exceed the upper surface of the disk seat 2, so that the upper cover 1 can be fully contacted with the disk seat 2. In this embodiment, be provided with the holding tank that can hold spring bolt 3 on the disk seat 2, during the unblock state, spring bolt 3 is located the holding tank, and the upper surface of spring bolt 3 is not higher than the upper surface of disk seat 2 to guarantee that upper cover 1 normally closes.

When upper cover 1 was opened, the upper surface of dish seat 2 was washing machine's outward appearance face, and in order to improve washing machine's pleasing to the eye degree, the space of holding tank can with 3 looks adaptations of spring bolt, the upper surface of spring bolt 3 can with the upper surface parallel and level of dish seat 2. Under the unblock state, 3 insets of spring bolt in the dish seat 2, shelters from the holding tank on the dish seat 2 for the upper surface of dish seat 2 does not have the hole, can make dish seat 2 more pleasing to the eye.

In addition, the bolt 3 can be embedded into the disk seat 2, so that the installation space required by the whole locking mechanism can be reduced, and the reasonable utilization of the space inside the washing machine is facilitated.

As shown in fig. 4, an avoiding groove 12 is formed on one side of the upper cover 1 facing the tray 2, that is, the lower surface of the upper cover 1, and the driving assembly 4 drives the latch tongue 3 to slide upwards and into the avoiding groove 12, so that the latch tongue 3 is embedded into the upper cover 1. The locking groove 11 is arranged on the side surface of the avoiding groove 12, and when the driving assembly 4 drives the bolt 3 to rotate, at least part of the bolt 3 enters the locking groove 11. After the spring bolt 3 got into locking groove 11 in, because the upper and lower both ends of locking groove 11 are the confining surface, spacing through spring bolt 3 can restrict relative dish seat 2 of upper cover 1 and rotate to reach and lock the purpose on dish seat 2 with upper cover 1.

In this embodiment, the driving assembly 4 is installed in the tray base 2, i.e. in the space between the upper end of the washing tub and the casing, so that the internal space of the washing machine can be reasonably utilized, and the utilization rate of the space is improved.

Optionally, the locking mechanism further comprises a box body 5, the driving assembly 4 is arranged in the box body 5, and one end of the driving assembly 4 extends out of the box body 5 and is connected with the bolt 3. Through setting up box body 5, can make locking mechanical system realize the modularization, make things convenient for locking mechanical system's dismouting.

Optionally, in order to improve the aesthetic measure of the upper cover 1, a pressing plate 6 is elastically connected in the avoiding groove 12, the pressing plate 6 is adapted to the opening of the avoiding groove 12, and the pressing plate 6 faces one surface of the tray base 2, that is, the lower surface of the pressing plate 6 can be flush with the lower surface of the upper cover 1. When the upper cover 1 is not locked with the disk seat 2, the pressing plate 6 blocks the opening of the avoiding groove 12, so that the lower surface of the upper cover 1 has no hole, and the upper cover 1 is more attractive. Alternatively, the pressing plate 6 may be connected to the top surface of the escape groove 12 by the first spring 7, and the pressing plate 6 is driven to move downward by the elastic force of the first spring 7 so as to shield the opening of the escape groove 12.

As shown in fig. 5, the case 5 includes an upper case 51 and a lower case 52, and the upper case 51 and the lower case 52 are detachably connected to facilitate opening the case 5 and disassembling the driving assembly 4 therein. Alternatively, the upper shell 51 and the lower shell 52 may be connected by a fastener such as a screw, or may be fixedly connected in a snap-fit manner. The upper case 51 is provided with lugs provided with mounting holes for fixing the cartridge body 5 to the tray 2.

In order to connect the driving assembly 4 in the disk seat 2 with the latch bolt 3 so as to drive the latch bolt 3 to move, as shown in fig. 6 and 7, the driving assembly 4 comprises a movable rod 41, the movable rod 41 is slidably arranged in the box body 5, and one end of the movable rod 41 extends out of the box body 5 and extends into the accommodating groove on the disk seat 2 to be connected with the latch bolt 3. The movable rod 41 can slide up and down relative to the tray 2 and can rotate relative to the tray 2 so as to drive the latch 3 to slide and rotate.

In order to facilitate the installation of the locking mechanism and the disk seat 2, the movable rod 41 is detachably connected with the latch bolt 3. Alternatively, the latch bolt 3 may be fixedly connected with the movable rod 41 by a screw. When the locking mechanism is installed, the driving component 4 can be firstly installed in the box body 5; then the box body 5 is fixed with the disk seat 2, and the upper end of the movable rod 41 extends into the accommodating groove; finally, the bolt 3 is fixedly connected with the movable rod 41.

The driving assembly 4 further includes a driving member which can drive the movable rod 41 to slide in the up-and-down direction so that the latch 3 is inserted into the upper cover 1 or separated from the upper cover 1. Alternatively, the driving member may be a linear driving structure such as a cylinder, a linear motor, or the like. The output end of the driving member can be vertically placed and connected with the movable rod 41, so that the movable rod 41 is driven to slide by the extension and contraction of the output end.

In order to reduce the installation space of the driving assembly 4 in the vertical direction and avoid the interference between the driving assembly 4 and other structures in the housing, in this embodiment, the driving assembly 4 further includes a guide block 432 and a guide slot 411. The guide slot 411 is disposed on the movable rod 41, and the driving member drives the guide block 432 to slide in the guide slot 411, so as to drive the movable rod 41 to slide up and down. The driving member can drive the guide block 432 to horizontally slide, and the horizontal motion is converted into the vertical motion of the movable rod 41 through the matching of the guide block 432 and the guide slot 411, so that the structure of the driving assembly 4 is more compact, and the size is favorably reduced.

Specifically, as shown in fig. 6, the guide slot 411 is disposed obliquely so as to be angled from the vertical direction. When the locking mechanism is in the unlocking state, the guide block 432 slides to the upper end of the guide slot 411, the height of the upper end of the guide slot 411 is enabled to be flush with the guide block 432 through the limiting of the guide block 432, the movable rod 41 is located at the lowest end, and the bolt 3 is embedded into the accommodating slot. When it is required to lock the upper cover 1, the driving member drives the guide block 432 to slide, so that the guide block 432 slides toward the lower end of the guide slot 411. In the sliding process, because the height of the guide block 432 in the vertical direction is not changed, the movable rod 41 is pushed to slide upwards, so that the bolt 3 extends out of the accommodating groove to abut against the pressing plate 6, the pressing plate 6 is pushed, and the bolt extends into the avoiding groove 12.

Optionally, the driving assembly 4 further comprises a sliding member 43, the sliding member 43 is disposed in the box body 5 and can slide along the horizontal direction, a guide block 432 is disposed on the sliding member 43, and the driving member is connected with the sliding member 43, so as to realize the sliding of the guide block 432. The driving member includes an electromagnetic coil 421 and an iron core 422, the electromagnetic coil 421 is sleeved outside the iron core 422, and the iron core 422 is connected with the sliding plate 43. When the solenoid 421 is energized, the driving core 422 is retracted, and the sliding plate 43 is slid. In this embodiment, the electromagnetic coil 421 and the iron core 422 are matched to slide the movable rod 41, so as to improve the response speed of the locking mechanism, and the driving member has a smaller size, which is beneficial to reducing the overall size of the locking mechanism.

As shown in fig. 6 and 7, one end of the sliding member 43 close to the driving member is provided with a clamping groove 431 with an open upper end, and the clamping groove 431 extends to one end close to the driving member to form a through hole, and the through hole extends upwards to form a notch. The end of the iron core 422 extending out of the electromagnetic coil 421 is provided with a connecting shaft and a clamping end, the clamping end is clamped into the clamping groove 431 through an opening at the upper end of the clamping groove 431, and the connecting shaft is located in the notch, so that the iron core 422 is connected with the sliding piece 43. In this embodiment, the iron core 422 and the sliding member 43 are connected in a clamping manner, and are not fixed by an additional connecting member, which is beneficial to simplifying the structure of the driving assembly 4.

In order to ensure the sliding stability of the sliding member 43, a guide rod 521 may be further disposed in the box body 5, a guide hole 433 is disposed on the sliding member 43, and the guide rod 521 is disposed through the guide hole 433 so as to guide the sliding direction of the sliding member 43, thereby preventing the guide block 432 from being deflected in the direction to block the guide slot 411.

In order to retract the iron core 422 after the electromagnetic coil 421 is powered off, the driving member further includes an elastic restoring member 44, and the elastic restoring member 44 can drive the iron core 422 to extend out of the electromagnetic coil 421, so as to drive the sliding member 43 to slide, so that the guide block 432 slides to the upper end of the guide slot 411, and thus the lock tongue 3 is retracted into the receiving slot. Alternatively, the elastic restoring element 44 may be a second spring, and the second spring is sleeved outside the iron core 422 and is located between the electromagnetic coil 421 and the sliding element 43.

After the bolt 3 stretches into and dodges in the groove 12, drive assembly 4 can rotate through drive movable rod 41 and realize that bolt 3 rotates to make bolt 3 and locking groove 11 cooperate. Alternatively, the driving assembly 4 may further include a rotation driving structure for driving the movable rod 41 to rotate, and the rotation driving structure may be provided with a power source independently or may share the same power source with the sliding of the movable rod 41.

In order to simplify the structure of the driving assembly 4, in the present embodiment, as shown in fig. 7, the rotation of the movable lever 41 is also achieved by the driving member. Specifically, in order to convert the sliding of the slider 43 into the rotation of the movable lever 41, a rack 46 is provided on the slider 43 in the sliding direction thereof, and a gear 45 is provided on the movable lever 41, and the gear 45 may be engaged with the rack 46, thereby converting the horizontal sliding into the rotation.

To avoid the engagement of the guide block 432 with the guide slot 411 interfering with the rotation of the movable lever 41, the guide block 432 is positioned between the driver and the rack gear 46. As shown in fig. 8 and 9, when the locking mechanism locks the upper cover 1, the electromagnetic coil 421 is energized to drive the iron core 422 to retract into the electromagnetic coil 421 against the elastic force of the elastic restoring member 44, and the sliding member 43 is driven to slide, so that the guide block 432 slides to the lower end of the guide slot 411. As the plunger 422 retracts, the guide block 432 slides out from the lower end of the guide slot 411, and at the same time, the rack 46 of the slider 43 engages with the gear 45 of the movable rod 41, and the movable rod 41 is restricted from falling by the engagement of the gear 45 and the rack 46. The plunger 422 is further retracted and the rack 46 will rotate the gear 45, thereby rotating the movable rod 41 to extend the bolt 3 into the locking slot 11.

When the locking of the upper cover 1 needs to be released, the electromagnetic coil 421 is de-energized, and the iron core 422 will be driven by the elastic reset piece 44 to extend out of the electromagnetic coil 421. At this time, the rack 46 is engaged with the gear 45, and the gear 45 rotates in the reverse direction, so that the latch tongue 3 is retracted from the locking groove 11 into the escape groove 12. The plunger 422 continues to extend outward, the pinion 45 is disengaged from the rack 46, and the guide block 432 enters the guide slot 411. The guide block 432 slides along the guide slot 411 to the upper end of the guide slot 411, so that the movable rod 41 slides downward, the latch tongue 3 retracts into the receiving slot, and the locking of the upper cover 1 is released.

Alternatively, the gear 45 on the movable lever 41 may be a partial gear 45. The central angle of the incomplete gear 45 may be an angle required for the latch tongue 3 to be rotated into the locking groove 11. By reducing the central angle of the gear 45, interference between the gear 45 and the position of the slider 43 where the rack 46 is not provided can be avoided, and normal operation of the driving assembly 4 can be ensured.

Optionally, the rotation angle of the locking tongue 3 may be 90 °, and this rotation angle may avoid interference between the gear 45 and the sliding member 43 or the guide block 432 after the gear 45 is disengaged from the rack 46 on the basis of ensuring that the locking tongue 3 and the locking groove 11 have a good locking effect, so as to ensure that the driving assembly 4 works normally.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A locking mechanism for locking a first fastener to a second fastener, comprising:

the bolt (3) is arranged on the first fixing piece;

a locking groove (11) arranged on the second fixing piece; and

a driving assembly (4), wherein the driving assembly (4) is configured to drive the lock bolt (3) to slide into the second fixing piece and rotate into the locking groove (11) so as to lock the first fixing piece and the second fixing piece.

2. The locking mechanism according to claim 1, characterized in that the first fixing member is provided with a receiving groove for receiving the locking tongue (3), and the cross-sectional shape and size of the receiving groove are the same as the cross-sectional shape and size of the locking tongue (3).

3. The locking mechanism according to claim 1, characterized in that the second fixing piece is provided with an evasion groove (12) on the side facing the first fixing piece, the driving element (4) drives the bolt (3) to slide into the evasion groove (12), and the locking groove (11) is provided on the side wall of the evasion groove (12).

4. The locking mechanism according to claim 3, wherein a pressing plate (6) is elastically connected in the avoiding groove (12), the cross-sectional shape and size of the pressing plate (6) are the same as those of the opening of the avoiding groove (12), and when the bolt (3) does not enter the avoiding groove (12), the surface of the pressing plate (6) facing the first fixing member is configured to be flush with the surface of the second fixing member facing the first fixing member.

5. The locking mechanism according to any one of claims 1 to 4, characterized in that the drive assembly (4) comprises:

the movable rod (41), the movable rod (41) slides and wears to locate first mounting, and can be relative first mounting rotation, the one end of movable rod (41) is connected spring bolt (3).

6. The locking mechanism according to claim 5, characterized in that the drive assembly (4) further comprises:

the guide groove (411) is arranged on the movable rod (41) and forms an included angle with the sliding direction of the movable rod (41); and

the guide block (432), the guide block (432) can slide along the guide slot (411), and when the guide block (432) slides along the guide slot (411), the movable rod (41) is driven to slide.

7. The locking mechanism according to claim 6, characterized in that the drive assembly (4) further comprises:

the guide block (432) is arranged on the sliding piece (43), and a rack (46) is arranged on the sliding piece (43); and

a gear (45), gear (45) set up in movable rod (41), when spring bolt (3) slide to with locking groove (11) are just to the time, guide block (432) break away from guide way (411), just rack (46) with gear (45) meshing.

8. The locking mechanism of claim 7, wherein the drive assembly (4) further comprises:

an electromagnetic coil (421);

the iron core (422) is arranged in the electromagnetic coil (421) in a penetrating mode, and the iron core (422) is connected with the sliding piece (43); and

an elastic restoring member (44), wherein the elastic restoring member (44) is configured to drive the iron core (422) to restore.

9. The locking mechanism of claim 5, further comprising:

box body (5), drive assembly (4) set up in box body (5), movable rod (41) are connected the one end of spring bolt (3) is stretched out outside box body (5).

10. A laundry treatment apparatus comprising a cabinet (2) and an upper cover (1) provided on said cabinet (2), characterized by further comprising a locking mechanism according to any one of claims 1-9 for locking said cabinet (2) and said upper cover (1).