CN215169012U - Lock mechanism and dish washing machine - Google Patents

Abstract

The utility model relates to a tool to lock mechanism and dish washer includes the guide, the slider, trip and locking unit, the trip is including the first cooperation position and the second cooperation position of mutual dislocation, first cooperation position and slider swing joint, make the trip can follow the slider removal and can rotate for the slider, the guide is equipped with the first guide rail of arranging along the moving direction of slider, second cooperation position and first guide rail sliding fit, first guide rail is including the first direction section and the second direction section that communicate in proper order on the unblock direction, the trip can promptly the spring bolt in the inboard of trip under the locking state, the second direction section is located the inboard position of keeping away from the trip for first direction section, locking unit and slider cooperation are used for preventing the slider to remove along the unblock direction under the locking state. In the locking or unlocking process, the state of the clamping hook is guided by the first guide rail, so that the state is stable. After long-time use, the rotation angle of the clamping hook is still stable, and the convenience in the switching process is kept.

Description

Lock mechanism and dish washing machine

Technical Field

The utility model relates to a tool to lock technical field especially relates to tool to lock mechanism and dish washer.

Background

In a kitchen ware such as a dish washer or a steam oven, a lock is generally required to be arranged between a door body and a kitchen ware body, and the door body is controlled to be opened and closed by the lock. In the process of opening and closing the door each time, the lockset needs to complete the switching between the locking state and the unlocking state. Through long-time use, the condition that the door body cannot be locked or the resistance is large after the door body is locked exists, so that the door opening and closing process is not convenient enough, and the user experience is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to long-time after using, the not convenient technical problem of switch door in-process locker switch has provided a tool to lock mechanism and dish washer inadequately to ensure still can keep the convenience of switch in-process after using for a long time.

A lock mechanism is provided with an unlocking state and a locking state and comprises a guide part, a sliding block, a clamping hook and a locking unit, wherein the guide part is provided with a first guide rail arranged along the moving direction of the sliding block, the clamping hook comprises a first matching position and a second matching position which are staggered with each other, the first matching position of the clamping hook is movably connected with the sliding block, so that the clamping hook can move along with the sliding block and can rotate relative to the sliding block, and the second matching position is in sliding fit with the first guide rail;

the first guide rail comprises a first guide section and a second guide section which are sequentially communicated in the unlocking direction, and the second guide section is positioned far away from the inner side of the clamping hook relative to the first guide section; the trip can grasp the spring bolt in the inboard of trip under the locking state, the locking unit with the slider cooperation is used for preventing under the locking state the slider is along unblock direction removes.

Above-mentioned scheme provides a tool to lock mechanism, when switching between locking state and unblock state the slider removes, the trip follows the slider removes. The hook moves in the first guide rail based on the second matching position in the moving process, so that the hook can rotate relative to the sliding block. Specifically, when the unlocking state is switched to the locking state, the second matching position of the hook slides to the first guide section through the second guide section, and the hook is biased to a position, far away from the inner side of the hook, of the first guide section based on the second guide section, so that the hook rotates to the locking state along the first direction. When the locking unit is in a locking state, the locking unit is matched with the sliding block to prevent the clamping hook and the sliding block from moving, so that the locking purpose is achieved. When the unlocking is needed, the locking process of the sliding block by the locking unit is firstly released, so that the sliding block can move, then the clamping hook can move along with the sliding block, the second matching position moves to the second guide section from the first guide section, under the guide effect of the second guide section, the clamping hook rotates to the unlocking state along the reverse direction of the first steering, and then the lock tongue can be separated from the clamping hook and pulled out. In the locking and unlocking processes, the state of the clamping hook is guided by the first guide rail, so that the state is stable. And then even through long-time use, the turned angle of trip is stable, and turned angle when the unblock state to and turned angle when locking state can both be more accurate, keep the convenience of switch in-process.

In one embodiment, the guide member is provided with two first guide rails, the two first guide rails are arranged at intervals, the number of the hooks is two, the second matching position of one of the hooks is in sliding fit with one of the first guide rails, the second matching position of the other hook is in sliding fit with the other first guide rail, and the lock tongue is clamped between the two hooks in a locked state.

In one embodiment, a second guide rail is further arranged on the guide part, the second guide rail is located between the two first guide rails, the guide direction of the second guide rail is consistent with the sliding direction of the sliding block, and the sliding block is in sliding fit with the second guide rail.

In one embodiment, the hook is hinged to the slider at the first mating position.

In one embodiment, the sliding block slides on the guide piece, the locking unit comprises a guide hook and an elastic pressing piece, a guide path is arranged on the surface, deviating from the guide piece, of the sliding block, a hook portion of the guide hook is located in the guide path, the elastic pressing piece is arranged on the guide piece, the elastic pressing piece is located on one side, deviating from the lock tongue, of the sliding block, the elastic pressing piece is connected with the guide hook and used for providing elastic force for the guide hook to enable the hook portion of the guide hook to be pressed in the guide path, the guide path comprises a first position, when the hook portion of the guide hook is located in the first position, the guide hook can be tensioned between the guide path and the elastic pressing piece, and a second matching position of the clamping hook is located in the first guide section.

In one embodiment, an elastic resetting piece is arranged between the sliding block and the guide piece, and the elastic resetting piece can provide elastic force for the sliding block to move in the direction away from the elastic pressing piece.

In one embodiment, the guide path is a closed path which is communicated end to end, the guide path further includes a second position, the second position is located at one side of the first position close to the elastic pressing piece, when the hook portion of the guide hook is located at the second position, the guide hook can be tensioned between the guide path and the elastic pressing piece, the second matching position of the clamping hook is located in the second guide section, path sections on two sides of the first position on the guide path are communicated to form a V-shaped section, and an opening of the V-shaped section faces a direction away from the elastic pressing piece.

In one embodiment, a plurality of inclined platforms are arranged in the guide path, the inclined platforms are sequentially arranged along the guide direction of the guide path, and the retaining surface of each inclined platform faces the advancing direction of the hook part of the guide hook, so that the hook part of the guide hook moves along a set direction in the guide path.

In one embodiment, the guide part comprises a bottom plate and a side plate which are connected with each other, the first guide rail is arranged on a surface, facing the sliding block, of the bottom plate, the side plate and the sliding block are arranged oppositely, the elastic resetting part is pressed between the side plate and the sliding block, the elastic pressing part is arranged on the side plate, and the guide path is arranged on a surface, facing away from the bottom plate, of the sliding block.

A dish washing machine comprises a body provided with an inner container and a door body used for sealing the inner container, wherein one of the body and the door body is provided with the lock mechanism, the other one of the body and the door body is provided with a lock tongue, the lock tongue and the lock mechanism are arranged oppositely, when the door body is closed, the lock tongue pushes a sliding block, a second matching of a clamping hook is enabled to be moved to a first guiding section through a second guiding section, and the clamping hook rotates to enable the lock tongue to be clamped tightly.

The scheme provides a dishwasher, by adopting the lock mechanism in any embodiment, the door body can be locked on the body by utilizing the matching between the lock mechanism and the lock tongue. In addition, no matter in the door opening or closing process, the state of a clamping hook in the lock mechanism is controlled by the first guide rail, so that the locking state and the unlocking state of the lock mechanism are still stable even after long-time use, and the state switching is smooth. And then make the switch door in-process, the great condition of resistance takes place when the spring bolt can't lock in the tool to lock or open after locking, ensures the convenience of switch door.

In one embodiment, a microswitch is arranged on the hook and is electrically connected with a controller of the dish-washing machine.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of the lock mechanism of this embodiment in an unlocked state;

FIG. 2 is a schematic view of the locking mechanism of this embodiment in a locked position;

FIG. 3 is a schematic structural view of the guide member according to the present embodiment;

fig. 4 is a schematic structural diagram of the slider according to this embodiment.

Description of reference numerals:

10. a lock mechanism; 11. a guide member; 111. a first guide rail; 1111. a first guide section; 1112. a second guide section; 112. a second guide rail; 113. a base plate; 114. a side plate; 12. a slider; 121. a guide path; 1211. a first position; 1212. a second position; 1213. a V-shaped section; 1214. a straight path; 1215. a curved path; 13. a hook is clamped; 131. a first mating location; 132. a second mating location; 14. a locking unit; 141. a guide hook; 142. an elastic pressing member; 15. an elastic reset member; 16. and a lock tongue.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

As shown in fig. 1 and 2, in one embodiment, a latch mechanism 10 is provided, the latch mechanism 10 having an unlocked state and a locked state. The lock mechanism 10 includes a guide 11, a slider 12, a hook 13, and a locking unit 14. The hook 13 comprises a first matching position 131 and a second matching position 132 which are staggered with each other, and the first matching position 131 of the hook 13 is movably connected with the slider 12, so that the hook 13 can move along with the slider 12 and can rotate relative to the slider 12. The guide member 11 is provided with a first guide rail 111 arranged along the moving direction of the slider 12, and the second engagement portion 132 is slidably engaged with the first guide rail 111. When the lock mechanism 10 is switched to the unlocking state, the moving direction of the slider 12 is the unlocking direction, as shown in fig. 3, in the unlocking direction, the first guide rail 111 includes a first guide section 1111 and a second guide section 1112 which are sequentially communicated, and the second guide section 1112 is located at a position far away from the inner side of the hook 13 relative to the first guide section 1111; the hook 13 can grasp the bolt 16 at the inner side of the hook 13 in the locking state. The locking unit 14 cooperates with the slider 12 for preventing the slider 12 from moving in the unlocking direction in the locked state.

According to the lockset mechanism 10 provided by the scheme, when the lockset mechanism is switched between the locking state and the unlocking state, the sliding block 12 moves, and the clamping hook 13 moves along with the sliding block 12. During the movement, the hook 13 moves in the first guide rail 111 based on the second mating position 132, so that the hook 13 can rotate relative to the slider 12. Specifically, when the unlocking state shown in fig. 1 is switched to the locking state shown in fig. 2, as the bolt 16 gradually moves to the inner side of the hook 13, the bolt 16 contacts the slider 12, and the bolt 16 moves the slider 12 forward. The second engagement portion 132 of the hook 13 slides from the second guide segment 1112 to the first guide segment 1111, and based on the second guide segment 1112 being biased to a position where the first guide segment 1111 is far away from the inner side of the hook 13, the hook 13 rotates to a locking state in the first direction, as shown in fig. 2, the hook 13 grips the lock tongue 16 at the inner side. When the locking device is in a locking state, the locking unit 14 cooperates with the sliding block 12 to prevent the hook 13 and the sliding block 12 from moving, so that the locking purpose is achieved. When unlocking is needed, the locking process of the sliding block 12 by the locking unit 14 is firstly released, so that the sliding block 12 can move. Then, when the latch tongue 16 moves away from the slider 12, the latch tongue 16 pulls the slider 12 in the unlocking direction at the beginning, the hook 13 follows the slider 12, and the second engagement portion 132 gradually moves from the first guide section 1111 to the second guide section 1112. Under the guiding action of the second guiding segment 1112, the hook 13 rotates in the opposite direction of the first direction to the unlocking state, and then the hook 13 releases the bolt 16, so that the bolt 16 can be pulled out from the hook 13.

During the locking and unlocking processes, the state of the hook 13 is guided by the first guide rail 111, so that the state is stabilized. Even long-time use is passed through, the turned angle of trip 13 is stable, and turned angle when the unlocked state and turned angle when the locked state can both be more accurate, keep the convenience of switch in-process. The situation that the bolt 16 cannot be inserted into the locking device due to the fact that the opening angle of the hook 13 is insufficient in the unlocking state can not occur.

Specifically, the number of the hooks 13 may be one, the lock tongue 16 is hooked at the inner side by one of the hooks 13 in a locked state, and the lock tongue 16 is locked at one side. Specifically trip 13 can be located the upside, downside, left side or the right side of spring bolt 16, as long as spring bolt 16 quilt when trip 13 hugs closely in the inboard, spring bolt 16 can't remove to the unblock direction.

Alternatively, there may be two hooks 13. For example, as shown in fig. 3, in one embodiment, the guide member 11 is provided with two first guide rails 111, and the two first guide rails 111 are arranged at intervals. The number of the hooks 13 is two, wherein the second matching position 132 of one of the hooks 13 is in sliding fit with one of the first guide rails 111, and the second matching position 132 of the other hook 13 is in sliding fit with the other first guide rail 111. The bolt 16 is gripped between the two hooks 13 in the locked state.

In the unlocked state, as shown in fig. 1, the latch 16 is opposite to the opening between the two hooks 13 in the open state. When the bolt 16 is close to the slider 12, the bolt 16 is located between the two hooks 13. As the bolt 16 moves further to move the slider 12, the two hooks 13 rotate relatively close to each other, and the bolt 16 is locked between the two hooks.

As shown in fig. 3, the distance between the two second guide segments 1112 is greater than the distance between the two first guide segments 1111. When the second engagement positions 132 of the two hooks 13 are both moved into the corresponding second guide sections 1112, as shown in fig. 1, the two hooks 13 are in an open state, and the opening faces the lock tongue 16. When the second engagement portions 132 of the two hooks 13 move into the corresponding first guide sections 1111, as shown in fig. 2, the distance between the second engagement portions 132 of the two hooks 13 is small, so as to lock the lock tongue 16 between the two hooks 13.

Further specifically, as shown in fig. 2, the distance between the first engagement portions 131 of the two hooks 13 is not greater than the distance between the two second guide sections 1112.

Further, as shown in fig. 3, in an embodiment, a second guide rail 112 is further disposed on the guide member 11, a guiding direction of the second guide rail 112 is consistent with a sliding direction of the slider 12, and the slider 12 is slidably engaged with the second guide rail 112. The sliding block 12 is guided by the second guide rail 112 on the guide member 11, and the sliding process is more accurate and smooth.

Further specifically, as shown in fig. 3, the second guide rail 112 is located between the two first guide rails 111. As shown in fig. 4, the positions of the slider 12, which are engaged with the first engaging positions 131 of the two hooks 13, are respectively located at two sides of the second guide rail 112. The slider 12 is stressed in a balanced manner in the moving process, and the locking and unlocking processes are smooth.

Further, as shown in fig. 3, the guiding direction of the second guide rail 112 is parallel to the guiding direction of the first guiding section 1111. The two first guide rails 111 are symmetrically distributed on two sides of the second guide rail 112, the two hooks 13 are symmetrically distributed on two sides of the second guide rail 112, and two sides of the bolt 16 are symmetrically held tightly by the two hooks 13 in the locking process.

In particular, as shown in fig. 1 and 2, in one embodiment, the hook 13 is hinged to the slider 12 at the first mating location 131. When the sliding block 12 is slidably fitted on the guide 11, the rotation axis of the first fitting position 131 hinged to the sliding block 12 is perpendicular to the guide 11, and the hook 13 rotates on a plane parallel to the guide 11. As shown in fig. 1 and 2, the locking tongue 16 has a plate-shaped structure, and a rotating shaft of the hook 13 when rotating is parallel to the thickness direction of the locking tongue 16. In other words, the two hooks 13 are respectively located on the left side and the right side of the lock tongue 16, and the thickness direction of the lock tongue 16 is the up-down direction, so that the thickness of the lock mechanism 10 is small.

Further, in an embodiment, the force of the sliding block 12 moving in the unlocking direction during unlocking may be such that the bolt 16 pushes out the hook 13 to receive the pulling force exerted on the sliding block 12, or may be derived from the restoring force exerted by the elastic member on the sliding block 12.

For example, as shown in fig. 1 and 2, an elastic restoring member 15 is disposed between the sliding block 12 and the guiding member 11, and the elastic restoring member 15 can provide an elastic force to the sliding block 12 to move in a direction approaching the latch 16.

Specifically, as shown in fig. 2, when the sliding block 12 moves to the lock mechanism 10 in the locked state, the elastic restoring member 15 is in a compressed state, and at this time, if the locking unit 14 is not operated, the elastic restoring member 15 will push the sliding block 12 to a direction close to the latch 16. In other words, when the lock unit 14 unlocks the slide block 12, the slide block 12 moves under the action of the reset force of the elastic reset piece 15, the hook 13 moves along with the slide block, so that the lock tongue 16 is separated from the constraint of the hook 13, and the lock tongue 16 can be pulled out of the hook 13.

Further specifically, as shown in fig. 1 and 2, in an embodiment, the locking unit 14 includes a guiding hook 141, a guiding path 121 is disposed on the slider 12, the guiding hook 141 is connected to the guiding element 11, a hook of the guiding hook 141 is located in the guiding path 121, the guiding path 121 includes a first position 1211, when the hook of the guiding hook 141 is located in the first position 1211, the guiding hook 141 is tensioned between the guiding path 121 and the guiding element 11, and an end of the guiding hook 141 connected to the guiding element 11 is located on a side of the slider 12 facing away from the locking tongue 16. The second mating portion 132 of the hook 13 is located in the first guiding portion 1111. At this time, the slider 12 cannot move in a direction approaching the latch 16 under the interference of the guide hook 141, so that the latch 16 is grasped by the hook 13 and held in the locked state.

When unlocking is required, the hook of the guide hook 141 is moved out of the first position 1211, the hook of the guide hook 141 moves in the guide path 121, and the slider 12 can move in a direction approaching the latch 16, and then move to the unlocked state.

Further, as shown in fig. 1, 2 and 4, the guide path 121 is located on a surface of the slider 12 facing away from the guide 11. The locking unit 14 further includes an elastic pressing member 142, the elastic pressing member 142 is disposed on the guide 11, and the elastic pressing member 142 is connected to the guide hook 141 and configured to provide the guide hook 141 with an elastic force for pressing the hook portion of the guide hook 141 in the guide path 121. The elastic pressing member 142 is located on a side of the slider 12 away from the tongue 16, and the guiding hook 141 can be pulled between the guiding path 121 and the elastic pressing member 142 when the hook portion of the guiding hook 141 is located at the first position 1211.

The sliding block 12 can be reliably pressed on the guide 11 and slide along the guide 11 by the elastic pressing part 142. Thereby indirectly enabling the second engaging portion 132 of the hook 13 to be stably slidably engaged with the first guiding rail 111.

Specifically, as shown in fig. 1 and 2, in one embodiment, the elastic restoring member 15 can provide the slider 12 with an elastic force away from the elastic pressing member 142.

Further, as shown in fig. 4, in one embodiment, the guide path 121 is a closed path that communicates end to end. The guide path 121 further includes a second position 1212, and the second position 1212 is located at a side of the first position 1211 close to the elastic pressing member 142. Under the action of the elastic reset element 15, when the hook portion of the guiding hook 141 is located at the second position 1212, the guiding hook 141 can be pulled between the guiding path 121 and the elastic pressing element 142, and the second matching position 132 of the hook 13 is located in the second guiding section 1112. When the hook portion of the guiding hook 141 moves between the first position 1211 and the second position 1212, the second engaging portion 132 of the hook 13 moves between the first guiding portion 1111 and the second guiding portion 1112.

Further, as shown in fig. 1, 2 and 4, path sections on both sides of the first position 1211 on the guide path 121 are communicated to form a V-shaped section 1213, and an opening of the V-shaped section 1213 faces away from the elastic pressing member 142.

When the hook portion of the guiding hook 141 is hooked at the first position 1211, the hook portion of the guiding hook 141 cannot move out of the first position 1211 under the absence of an external force, as shown in fig. 2, the relative position between the guiding hook 141 and the slider 12 is fixed, the slider 12 cannot move, and the latch 16 and the hook 13 are locked together.

When unlocking is needed, the slider 12 or the lock tongue 16 is pushed to move the slider 12 a small distance in a direction close to the elastic pressing piece 142, the hook part of the guide hook 141 is disengaged from the V-shaped section 1213 and moves to a path between the V-shaped section 1213 and the second position 1212 in the guide path 121, and then the slider 12 moves in the unlocking direction, and the hook part of the guide hook 141 moves to the second position 1212, so that the unlocking process is completed.

Further, in one embodiment, a plurality of ramps are disposed in the guide path 121, the ramps are sequentially disposed along the guide direction of the guide path 121, and the stop surface of each ramp faces the direction in which the hook portion of the guide hook 141 advances, so that the hook portion of the guide hook 141 moves in the guide path 121 in a predetermined direction without moving back in the opposite direction.

Specifically, as shown in fig. 4, the guide path 121 further includes a straight path 1214 and a curved path 1215 between the V-shaped section 1213 and the second position 1212. When locked in the unlocked state, the hook portion of the guiding hook 141 moves along the linear path 1214 from the second position 1212 into the V-shaped section 1213 and then reaches the first position 1211. When it is desired to unlock from the locked state, the hook portion of the guide hook 141 moves from the first position 1211 to the curved path 1215 along the V-shaped section 1213, and then to the second position 1212. The inclined table is arranged, so that when the hook part of the guide hook 141 moves to the boundary of the V-shaped section 1213 along the linear path 1214 and the external force is removed, the hook part of the guide hook 141 continues to move to the first position 1211 along the V-shaped section 1213 instead of moving back to the second position 1212 along the linear path 1214; it is also ensured that when unlocking, the hook portion of the guide hook 141 continues to move forward into the curved path 1215 and finally returns to the second position 1212, rather than returning to the first position 1211 from the intersection of the V-shaped section 1213 and the curved path 1215, as the hook portion of the guide hook 141 moves from the first position 1211 along the V-shaped section 1213 to the intersection of the V-shaped section 1213 and the curved path 1215.

Further, as shown in fig. 3, in one embodiment, the guide 11 includes a bottom plate 113 and a side plate 114 connected to each other. The first guide rail 111 is arranged on a surface of the base plate 113 facing the slider 12, and the guide path 121 is arranged on a surface of the slider 12 facing away from the base plate 113. The side plate 114 is arranged opposite to the sliding block 12, the elastic restoring member 15 is pressed between the side plate 114 and the sliding block 12, and the elastic pressing member 142 is disposed on the side plate 114.

The slide block 12 moves on the side plate 114 toward the side of the slide block 12, and the slide block 12 does not move away from a predetermined position under the limit action of the bottom plate 113, the side plate 114 and the elastic pressing member 142. When assembled, the end of the bottom plate 113 remote from the side plate 114 is disposed adjacent to the latch 16.

Further, in another embodiment, a dishwasher is provided, which comprises a body provided with an inner container and a door body used for closing the inner container. One of the lock body and the door body is provided with the lock mechanism 10, the other one is provided with a lock tongue 16, the lock tongue 16 is arranged opposite to the lock mechanism 10, when the door body is closed, the lock tongue 16 pushes the sliding block 12, so that the second matching of the hook 13 is moved to the first guiding section 1111 from the second guiding section 1112, and the hook 13 rotates to grasp the lock tongue 16.

The scheme provides a dishwasher, and by adopting the lock mechanism 10 in any embodiment, the door body can be locked on the body by utilizing the matching between the lock mechanism 10 and the bolt 16. Moreover, the state of the hook 13 in the lock mechanism 10 is controlled by the first rail 111 during the door opening or closing process, so that the locking state and the unlocking state of the lock mechanism 10 are kept stable and the state switching is smooth even after a long time use. And then make the in-process of opening and shutting the door, the condition that the resistance is great when can't appear in 16 spring bolts lock to the tool to lock or open after locking takes place, ensures the convenience of opening and shutting the door.

Moreover, the locking state and the unlocking state of the lock mechanism 10 are switched independently of electric devices such as a motor, so that the door body can be normally opened and closed even if power is cut off.

Preferably, the lock mechanism 10 is mounted on the body, and the latch 16 is mounted on the door body.

Further, in one embodiment, a micro switch is disposed on the hook 13, and the micro switch is electrically connected to the controller of the dishwasher.

Therefore, the on-off state of the microswitch reflects the motion state of the hook 13, when the hook 13 moves to the unlocking state, the microswitch is switched on, and the controller controls the dish washing machine to stop the washing process according to the on-off state, so that the safety problem is avoided. When the hook 13 moves to the unlocking state, the microswitch is switched off, and the door body is proved to be locked on the body at the moment, so that the controller controls the dish-washing machine to enter the washing process.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (11)

1. A lock mechanism is characterized by having an unlocking state and a locking state and comprising a guide part, a sliding block, a clamping hook and a locking unit, wherein the guide part is provided with a first guide rail arranged along the sliding direction of the sliding block, the clamping hook comprises a first matching position and a second matching position which are staggered with each other, the first matching position of the clamping hook is movably connected with the sliding block, so that the clamping hook can move along with the sliding block and can rotate relative to the sliding block, and the second matching position is in sliding fit with the first guide rail;

the first guide rail comprises a first guide section and a second guide section which are sequentially communicated in the unlocking direction, and the second guide section is positioned far away from the inner side of the clamping hook relative to the first guide section; the trip can grasp the spring bolt in the inboard of trip under the locking state, the locking unit with the slider cooperation is used for preventing under the locking state the slider is along unblock direction removes.

2. The lock mechanism as claimed in claim 1, wherein the guide member has two first guide rails, the two first guide rails are spaced apart from each other, the two hooks are two, the second engaging portion of one of the hooks is slidably engaged with one of the first guide rails, the second engaging portion of the other hook is slidably engaged with the other of the first guide rails, and the lock tongue is gripped between the two hooks in the locked state.

3. The lock mechanism as claimed in claim 2, wherein a second guide rail is further provided on the guide member, the second guide rail is located between the two first guide rails, the guide direction of the second guide rail is the same as the sliding direction of the slider, and the slider is slidably engaged with the second guide rail.

4. The lock mechanism as claimed in any one of claims 1 to 3, wherein the catch is hingedly connected to the slider at the first engagement location.

5. The lock mechanism as claimed in any one of claims 1 to 3, wherein the slider slides on the guide, the locking unit comprises a guide hook and an elastic pressing piece, a guide path is arranged on the surface of the sliding block departing from the guide piece, the hook part of the guide hook is positioned in the guide path, the elastic pressing piece is arranged on the guide piece, the elastic pressing piece is positioned on one side of the sliding block, which is far away from the lock tongue, the elastic pressing piece is connected with the guide hook, for providing the guide hook with a resilient force for pressing the hook portion of the guide hook in the guide path, the guide path comprising a first position, when the hook part of the guide hook is located at the first position, the guide hook can be tensioned between the guide path and the elastic pressing piece, and the second matching position of the clamping hook is located in the first guide section.

6. The latch mechanism according to claim 5, wherein a resilient return member is provided between the slider and the guide member, the resilient return member being capable of providing the slider with a resilient force to move in a direction away from the resilient hold down member.

7. The lock mechanism as claimed in claim 6, wherein the guide path is a closed path that communicates end to end, the guide path further comprising a second position located on a side of the first position that is close to the resilient biasing member, the guide hook being able to be tensioned between the guide path and the resilient biasing member when the hook portion of the guide hook is in the second position, the second engagement portion of the hook being located in the second guide section, the path sections on the guide path on both sides of the first position communicating to form a V-shaped section, the opening of the V-shaped section facing away from the resilient biasing member.

8. The lock mechanism as claimed in claim 7, wherein a plurality of ramps are disposed in the guide path, the ramps being arranged in sequence along a guide direction of the guide path, the stop surface of each ramp facing in a direction in which the hook portion of the guide hook advances, such that the hook portion of the guide hook moves in a predetermined direction in the guide path.

9. The lock mechanism as claimed in claim 6, wherein the guide member comprises a bottom plate and a side plate connected to each other, the first guide rail is disposed on a surface of the bottom plate facing the slider, the side plate is disposed opposite to the slider, the elastic restoring member is pressed between the side plate and the slider, the elastic pressing member is disposed on the side plate, and the guide path is disposed on a surface of the slider facing away from the bottom plate.

10. A dish washing machine is characterized by comprising a body provided with an inner container and a door body used for sealing the inner container, wherein one of the body and the door body is provided with the lock mechanism according to any one of claims 1 to 9, the other one of the body and the door body is provided with a lock tongue, the lock tongue and the lock mechanism are arranged oppositely, when the door body is closed, the lock tongue pushes the sliding block, so that the second matching of the clamping hook is moved to the first guide section through the second guide section, and the clamping hook rotates to tightly grasp the lock tongue.

11. The dishwasher of claim 10, wherein the hook is provided with a micro switch, and the micro switch is electrically connected with a controller of the dishwasher.

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