CN219012251U - Dish-washing machine - Google Patents

Abstract

The application belongs to life electrical apparatus technical field, provides a dish washer, include: the door lock mechanism comprises a triggering component, a linkage component and a lock catch, wherein the triggering component is arranged on the inner container, the linkage component comprises a connecting rod, a push rod and a traction piece which are sequentially connected, the connecting rod is connected with the triggering component, and the lock catch is movably arranged on the inner container and is connected with the traction piece; when the trigger component moves, the connecting rod is driven to rotate, and the connecting rod drives the lock catch to move sequentially through the push rod and the traction piece, so that the lock catch is separated from or locks the door body. The trigger assembly is connected with the lock catch through the linkage assembly, the linkage assembly can realize remote linkage action, and each part of the door lock mechanism can be arranged on the liner in a more scattered manner, so that when part of the parts of the door lock mechanism are damaged, a user can conveniently and independently replace and maintain the damaged parts, the whole door lock mechanism is not required to be replaced, and the waste of resources and the cost are reduced.

Description

Dish-washing machine

Technical Field

The application belongs to the technical field of household appliances, and more specifically relates to a dish washer.

Background

Along with the continuous improvement of the living standard of people, the requirements of people on the living quality are higher and higher, and the dish washer is used as equipment capable of automatically cleaning dishes such as bowls, chopsticks, plates, dishes, knives and forks, so that the labor intensity of people can be reduced, a better cleaning effect can be achieved, and the dish washer is gradually accepted and approved by the masses and becomes one of kitchen household appliances necessary for a modern intelligent kitchen.

The dish washer mainly comprises an inner container for placing tableware, an opening for taking and placing the tableware is formed in the inner container, an openable door body is arranged at the opening of the inner container, and in order to ensure smooth and safe process of the dish washer, the door body of the dish washer is usually locked on the inner container by a door lock mechanism. At present, most parts of a door lock mechanism of a dish washer are integrated into a whole, so that the disassembly and assembly work of single parts is inconvenient, and when part of the parts of the door lock mechanism are damaged, the door lock mechanism of the assembly needs to be replaced in a whole set, thereby causing resource waste and high cost.

Disclosure of Invention

An object of the embodiment of the application is to provide a dish washer to solve the most dish washer door lock mechanism's that exists among the prior art each part integration as an organic whole, be inconvenient for carrying out the dismouting work of single part, thereby after door lock mechanism's part damage, then need change assembly door lock mechanism whole set, cause the wasting of resources, technical problem with high costs.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: provided is a dish washer, including: the door lock mechanism is arranged on the inner container and comprises a triggering component, a linkage component and a lock catch, wherein the triggering component is arranged on the inner container, the linkage component comprises a connecting rod, a push rod and a traction piece which are sequentially connected, the connecting rod is connected with the triggering component, and the lock catch is movably arranged on the inner container and is connected with the traction piece; the trigger assembly drives the connecting rod to rotate when moving, and the connecting rod drives the lock catch to move sequentially through the push rod and the traction piece, so that the lock catch is separated from or locked with the door body.

Optionally, the trigger assembly includes button and button, the button with the connecting rod is connected, the button activity sets up on the inner bag, and with the button butt.

Optionally, the number of push rods, traction pieces and locking catches is at least two, at least two push rods are respectively connected with two ends of the connecting rod, at least two traction pieces are respectively connected with at least two push rods, at least two locking catches are respectively connected with at least two traction pieces, and at least two locking catches are respectively located on two opposite sides of the liner.

Optionally, the traction member is a flexible structure; or, the traction piece is of a rigid structure, and two ends of the traction piece are respectively connected with the push rod and the lock catch in a rotating way.

Optionally, when the traction member is of a flexible structure, the linkage assembly further comprises a guide member, the guide member is arranged on the liner, and the traction member is wound around the guide member.

Optionally, the door lock mechanism further comprises a first reset member for driving the trigger assembly to reset; and/or, the door lock mechanism further comprises a second reset piece for driving the lock catch to reset.

Optionally, the lock catch is rotationally connected with the inner container; or the lock catch is in sliding connection with the inner container.

Optionally, a limiting seat is arranged on the inner container, the limiting seat is arranged on the inner container, and the connecting rod penetrates through the limiting seat and can rotate relative to the limiting seat.

Optionally, the dishwasher further comprises a detection switch, wherein the detection switch is arranged on the liner and is used for detecting the opening and closing states of the door body.

Optionally, be provided with on the door body be used for with hasp looks lock joint the depression bar on the dish washer still includes rotatable setting up the inner bag, the both ends of depression bar respectively with detecting switch reaches the latch hook corresponds the setting, when the door body is closed, the latch hook can the butt the one end of depression bar, and drive the depression bar is rotatory, makes the other end butt of depression bar detecting switch, in order to trigger detecting switch.

The beneficial effect of dish washer that this application provided lies in: compared with the prior art, during the use, the user triggers the subassembly motion through the effect, drives the connecting rod rotatory when triggering the subassembly motion, drives the push rod and swings when the connecting rod is rotatory, passes through during the push rod swing the traction element drives the hasp motion, so that the hasp breaks away from or locks the door body, trigger the subassembly and be connected with the hasp through the linkage subassembly, the linkage subassembly can realize the remote linkage action, thereby can arrange door lock mechanism's each part more dispersedly on the inner bag, when door lock mechanism's partial part damages, the user can conveniently carry out individual change and maintenance to damaged part, need not to change whole door lock mechanism, be favorable to reducing the waste of resource and save cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a dishwasher according to an embodiment of the present application;

fig. 2 is a schematic perspective view of a dishwasher according to an embodiment of the present application;

FIG. 3 is an enlarged schematic view of a portion A of the dishwasher of FIG. 2;

FIG. 4 is an enlarged schematic view of a portion B of the dishwasher of FIG. 2;

fig. 5 is a schematic view of a part of a structure of a dishwasher according to an embodiment of the present application.

Wherein, each reference sign in the figure:

10. an inner container; 11. a fixing seat; 12. a rotating shaft; 13. a limit seat; 14. a protrusion; 15. a limiting block; 20. a door body; 21. a latch hook; 30. a door lock mechanism; 31. a trigger assembly; 311. a pressing member; 312. a key; 32. a linkage assembly; 321. a connecting rod; 322. a push rod; 323. a traction member; 324. a guide member; 325. a first connector; 326. a second connector; 33. locking; 331. a shaft hole; 40. a detection switch; 50. and (5) pressing the rod.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 5, a dishwasher according to an embodiment of the present application will be described.

Referring to fig. 1 and 2, the dishwasher provided in the embodiment of the present application includes a liner 10, a door body 20 and a door lock mechanism 30, wherein the door lock mechanism 30 is disposed on the liner 10, the door lock mechanism 30 includes a trigger assembly 31, a linkage assembly 32 and a latch 33, the trigger assembly 31 is disposed on the liner 10, the linkage assembly 32 includes a connecting rod 321, a push rod 322 and a traction member 323 which are sequentially connected, the connecting rod 321 is connected with the trigger assembly 31, and the latch 33 is movably disposed on the liner 10 and is connected with the traction member 323; when the trigger assembly 31 moves, the connecting rod 321 is driven to rotate, and the connecting rod 321 drives the lock catch 33 to move sequentially through the push rod 322 and the traction piece 323, so that the lock catch 33 is separated from or locks the door body 20.

Compared with the prior art, during the use, the user drives connecting rod 321 when triggering subassembly 31 motion through the effect, drive the push rod 322 swing when connecting rod 321 is rotatory, drive hasp 33 motion through traction piece 323 when the push rod 322 swings, so that hasp 33 breaks away from or locks the door body 20, trigger subassembly 31 is connected with hasp 33 through linkage subassembly 32, linkage subassembly 32 can realize the linkage action of remote, thereby can arrange each part of lock mechanism 30 more dispersedly on inner bag 10, when the part of lock mechanism 30 damages, the user can conveniently carry out the individual change and maintenance to the part of damage, need not to change whole lock mechanism 30, be favorable to reducing the waste of resource and save the cost.

In this application, please refer to fig. 1 and 2, be equipped with the holding chamber that is used for placing tableware in the inner bag 10, the opening has been seted up on the inner bag 10, opening and holding chamber intercommunication, door body 20 sets up on the inner bag 10, door body 20 can move in order to open or close the opening with respect to inner bag 10, door body 20 when door body 20 closed opening, door lock mechanism 30 automatic locking door body 20, in order to lock door body 20 on inner bag 10, effectively avoid door body 20 carelessly to be opened, guarantee the security, and when opening door body 20, through controlling trigger assembly 31, make linkage assembly 32 produce the linkage, the separation door body 20 of control hasp 33, in order to unlock between door body 20 and the inner bag 10, control process is simple.

The door body 20 includes a first door body, a second door body and a connection assembly, wherein the first door body and the second door body are connected through the connection assembly, and when one of the first door body and the second door body moves relative to the inner container 10, the other of the first door body and the second door body can be driven to move relative to the inner container 10 through the connection assembly. The cooperation through first door body portion and second door body portion can realize two opening the door, can make the first door body portion and the second door body portion between linkage each other through coupling assembling's setting, and overall structure is more stable, opening and closed opening that can be better can make the door body 20 more stable simultaneously.

In one embodiment of the present application, referring to fig. 1, 4 and 5, a latch hook 21 is disposed on the door 20, and the latch hook 21 is used for fastening the latch 33. Specifically, when the lock catch 33 is located at the fourth position, the lock catch 33 is fastened to the lock hook 21, so as to lock the door body 20 by the door lock mechanism 30, i.e. lock the door body 20 to the liner 10.

The trigger assembly 31 has a first position and a second position when moving, and the latch 33 has a third position and a fourth position when moving. When the lock catch 33 is located at the third position, the lock catch 33 locks the door body 20, that is, the door body 20 and the liner 10 are in a locked state, and at this time, the door body 20 cannot be opened or closed. When the lock catch 33 is at the fourth position, the lock catch 33 is separated from the door body 20, and the door body 20 and the liner 10 are in an unlocked state, and at this time, the door body 20 can be opened and closed. Specifically, when the trigger assembly 31 moves from the first position toward the second position, the trigger assembly 31 drives the lock catch 33 to move from the third position toward the fourth position through the linkage assembly 32, so that the lock catch 33 is separated from the door body 20, and the door body 20 and the liner 10 are unlocked.

In the present application, the specific positions of the trigger assembly 31, the linkage assembly 32, and the lock catch 33 disposed on the liner 10 are not limited. For example, in the present embodiment, the trigger assembly 31 is provided on the top of the liner 10, the lock catch 33 is provided on the peripheral side portion of the liner 10, and the link assembly 32 extends through the top of the liner 10 to the peripheral side portion of the liner 10. Of course, in some embodiments, the trigger assembly 31 may be disposed on the bottom, the latch 33 disposed on the peripheral side of the liner 10, and the linkage assembly 32 extending through the bottom of the liner 10 to the peripheral side of the liner 10. In other embodiments, the trigger assembly 31 may be disposed on the peripheral side, the latch 33 may be disposed on the top of the liner 10 or the bottom of the liner 10, and the linkage assembly 32 may extend through the peripheral side of the liner 10 to the top of the liner 10 or the bottom of the liner 10.

In an embodiment of the present application, referring to fig. 1 and 3, the triggering component 31 includes a pressing piece 311 and a key 312, the pressing piece 311 is connected with a connecting rod 321, the key 312 is movably disposed on the liner 10 and is abutted with the pressing piece 311, and when the key 312 is pressed, the key 312 presses the pressing piece 311 to rotate, so as to drive the connecting rod 321 to rotate. The cooperation of the key 312 and the pressing piece 311 can make the whole structure more reliable and the use is convenient.

Alternatively, the number of the pressing pieces 311 may be plural, and the plurality of pressing pieces 311 may be disposed at intervals along the length direction of the link 321. By providing the plurality of pressing pieces 311, the area of the pressing pieces 311 and the link 321 can be increased, and the link 321 can be rotated more stably. In the present embodiment, the number of the pressing pieces 311 is two.

In one embodiment of the present application, referring to fig. 3, the key 312 is rotatably connected to the liner 10. Specifically, a fixed seat 11 is disposed on the liner 10, and one end of a key 312 is rotatably connected with the fixed seat 11 through a rotating shaft 12. When the key 312 is pressed, the key 312 rotates from the first position toward the second position, and drives the pressing member 311 to rotate synchronously, so that the connecting rod 321 rotates synchronously.

It should be noted that, the user may manually press the key 312, and the user may use a smaller pressing force to press the key 312, so that the pressing piece 311, the connecting rod 321 and the linkage mechanism drive the lock catch 33 to move, which is beneficial to improving the use experience of the user. Of course, a driver such as an air cylinder may be used to automatically press the key 312, so as to realize automatic control and more intelligent.

In one embodiment of the present application, the door lock mechanism 30 further includes a first reset member (not shown) for driving the trigger assembly 31 to reset. One end of the first reset element is abutted against the trigger assembly 31, the other end of the first reset element is abutted against the liner 10, when the trigger assembly 31 is pressed to move from the first position to the second position, the first reset element enables the trigger assembly 31 to have a trend of moving from the second position to the first position, so that when the trigger assembly 31 moves to the second position and the pressing force on the trigger assembly 31 is withdrawn, the trigger assembly 31 is reset under the action of the first reset element to return to the first position. By providing the first reset member, the trigger assembly 31 can be quickly reset, and the use is facilitated.

Optionally, the first restoring member is a torsion spring, and is sleeved on the rotating shaft 12 for realizing the rotational connection between the key 312 and the fixing seat 11, and one end of the first restoring member is elastically abutted to the key 312, and the other end of the first restoring member is elastically abutted to the liner 10 or the fixing seat 11.

In an embodiment of the present application, referring to fig. 1 and 2, the number of push rods 322, traction members 323 and locking catches 33 is at least two, at least two push rods 322 are respectively connected with two ends of the connecting rod 321, at least two traction members 323 are respectively connected with at least two push rods 322, at least two locking catches 33 are respectively connected with at least two traction members 323, and at least two locking catches 33 are respectively located at two opposite sides of the liner 10. By providing at least two catches 33, the door body 20 can be locked to the liner 10 more stably. Through setting up two at least push rods 322 and two at least traction members 323, make trigger assembly 31 can carry out motion control to two at least hasp 33 simultaneously, specifically, through acting on trigger assembly 31, can carry out synchronous unblock to two at least hasp 33, be favorable to reducing manufacturing and use cost, the reliability is good simultaneously.

Optionally, the number of push rods 322, traction members 323 and locking catches 33 is two, the two push rods 322 are respectively located at two opposite sides of the inner container 10, the two traction members 323 are respectively located at two opposite sides of the inner container 10, and the two locking catches 33 are respectively located at two opposite sides of the inner container 10 for locking two opposite sides of the door body 20.

In an embodiment of the present application, please continue to refer to fig. 1 and 2, the liner 10 is provided with a limiting seat 13, and the connecting rod 321 is disposed through the limiting seat 13 and can rotate relative to the limiting seat 13. Through setting up spacing seat 13, can be more convenient support connecting rod 321, make connecting rod 321 rotate more steadily.

Further, the number of the limiting seats 13 is plural, and the plurality of limiting seats 13 are arranged at intervals along the length direction of the connecting rod 321. Alternatively, the number of the limiting seats 13 is two, two ends of the connecting rod 321 are respectively arranged on the two limiting seats 13 in a penetrating manner, and the triggering component 31 is arranged between the two limiting seats 13.

In one embodiment of the present application, two ends of the transmission member are respectively connected to the connecting rod 321 and the traction member 323, and when the triggering assembly 31 drives the connecting rod 321 to rotate, the connecting rod 321 drives the push rod 322 to swing so as to pull the traction member 323 to move.

In one embodiment of the present application, referring to fig. 1 and 5, the traction member 323 is a flexible structure. The traction member 323 adopts a flexible structure, so that force transmission can be facilitated.

In one embodiment of the present application, the traction member 323 is a rigid structure, and two ends of the traction member 323 are respectively rotatably connected with the push rod 322 and the lock catch 33. The traction member 323 adopts a rigid structure, so that force transmission can be more stable.

In one embodiment of the present application, referring to fig. 1 and 5, when the traction member 323 is of a flexible structure, the linkage assembly 32 further includes a guiding member 324, the guiding member 324 is disposed on the liner 10, and the traction member 323 is wound around the guiding member 324. Through setting up the guide 324, can change the direction of traction piece 323, in addition, set up on the different positions of inner bag 10 through the guide 324, can realize different guiding effect, can also carry out better guide to traction piece 323 by a plurality of guide 324 complex mode.

In one embodiment of the present application, referring to fig. 5, the linkage assembly 32 further includes a first connecting member 325 and a second connecting member 326, wherein the first connecting member 325 and the second connecting member 326 are connected to two ends of the traction member 323 respectively, the first connecting member 325 is connected to the push rod 322, and the second connecting member 326 is connected to the lock catch 33. Alternatively, the first link 325 is rotatably coupled to the push rod 322 and the second link 326 is rotatably coupled to the latch 33.

In one embodiment of the present application, referring to fig. 4 and 5, the lock 33 is rotatably connected to the liner 10, that is, the lock 33 can rotate between a third position and a fourth position relative to the liner 10. Specifically, the liner 10 is provided with a protruding shaft, one end of the lock catch 33 is provided with a shaft hole 331, the lock catch 33 is movably sleeved on the protruding shaft through the shaft hole 331, and the other end of the lock catch 33 is connected with one end of the traction piece 323 far away from the push rod 322 and used for locking the door body 20. By rotationally connecting the lock catch 33 with the liner 10, the overall structure can be simplified, and the movement of the lock catch 33 can be controlled conveniently.

In another embodiment of the present application, the lock 33 is slidably connected to the liner 10, i.e. the lock 33 is capable of sliding between a third position and a fourth position relative to the liner 10. For example, a sliding groove may be provided on the liner 10, a sliding rail may be provided on the lock catch 33, and the lock catch 33 slides on the liner 10 through matching of the sliding rail and the sliding groove. By slidably connecting the lock catch 33 to the liner 10, the movement of the lock catch 33 can be stabilized.

In one embodiment of the present application, the door lock mechanism 30 further includes a second reset member (not shown) for driving the latch 33 to reset. One end of the second reset piece is abutted with the lock catch 33, the other end of the second reset piece is abutted with the liner 10, when the trigger assembly 31 is pressed to move from the first position to the second position, the trigger assembly 31 drives the lock catch 33 to move from the third position to the fourth position through the linkage assembly 32, the second reset piece enables the trigger assembly 31 to have a trend of moving from the fourth position to the third position, and accordingly when the lock catch 33 moves to the fourth position and the pressing force on the trigger assembly 31 is removed, the lock catch 33 resets under the action of the second reset piece to return to the third position. By providing the second restoring member, the lock catch 33 can be quickly restored, and the door body 20 can be automatically locked.

Optionally, referring to fig. 5, an abutment limiting block 15 is disposed on the liner 10, the limiting block 15 is disposed corresponding to the protrusion 14 and located below the protrusion 14, the second restoring member is a torsion spring, the second restoring member is sleeved on the protrusion 14, one end of the second restoring member is elastically abutted to the lock catch 33, and the other end of the second restoring member is abutted to the limiting block 15.

In one embodiment of the present application, referring to fig. 4 and 5, the dishwasher further includes a detection switch 40, wherein the detection switch 40 is disposed on the liner 10 and electrically connected to the electrical circuit components for detecting the open and closed states of the door 20.

Specifically, the dishwasher further includes a pressing rod 50, the pressing rod 50 is rotatably disposed on the liner 10, two ends of the pressing rod 50 are respectively disposed corresponding to the detection switch 40 and the latch hook 21, and when the door body 20 is closed, the latch hook 21 can abut against one end of the pressing rod 50 to drive the pressing rod 50 to rotate, so that the other end of the pressing rod 50 abuts against the detection switch 40, so as to trigger the detection switch 40. The arrangement of the pressure lever 50 can be used for propping against the lock hook 21 on the door body 20 when the door body 20 is closed, the pressure lever 50 is driven to rotate when the door body 20 is propped against the pressure lever 50, and the pressure lever 50 is propped against the detection switch 40 when rotating, so that the state of the door body 20 is detected, and the detection mode is simple and reliable.

Optionally, the detection switch 40 is a micro switch.

Of course, in another embodiment of the present application, the detection switch 40 may also be a proximity switch, such as a hall, and by disposing a magnet on the door body 20, the detection switch 40 detects the open and closed states of the door body 20 through the magnetic field of the induction magnet.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (10)

1. The dish washer is characterized by comprising an inner container, a door body and a door lock mechanism, wherein the door lock mechanism is arranged on the inner container and comprises a trigger assembly, a linkage assembly and a lock catch, the trigger assembly is arranged on the inner container, the linkage assembly comprises a connecting rod, a push rod and a traction piece which are sequentially connected, the connecting rod is connected with the trigger assembly, and the lock catch is movably arranged on the inner container and is connected with the traction piece; the trigger assembly drives the connecting rod to rotate when moving, and the connecting rod drives the lock catch to move sequentially through the push rod and the traction piece, so that the lock catch is separated from or locked with the door body.

2. A dishwasher as in claim 1, wherein: the trigger assembly comprises a pressing piece and a key, wherein the pressing piece is connected with the connecting rod, and the key is movably arranged on the inner container and is abutted to the pressing piece.

3. A dishwasher as in claim 1, wherein: the number of push rods, the number of traction pieces and the number of catches are at least two, at least two push rods are respectively connected with two ends of the connecting rod, at least two traction pieces are respectively connected with at least two push rods, at least two catches are respectively connected with at least two traction pieces, and at least two catches are respectively located on two opposite sides of the liner.

4. A dishwasher as in claim 1, wherein: the traction piece is of a flexible structure; or, the traction piece is of a rigid structure, and two ends of the traction piece are respectively connected with the push rod and the lock catch in a rotating way.

5. The dishwasher of claim 4, wherein: when the traction piece is of a flexible structure, the linkage assembly further comprises a guide piece, the guide piece is arranged on the inner container, and the traction piece is wound on the guide piece.

6. A dishwasher as in claim 1, wherein: the door lock mechanism further comprises a first reset piece for driving the trigger assembly to reset; and/or, the door lock mechanism further comprises a second reset piece for driving the lock catch to reset.

7. A dishwasher as in claim 1, wherein: the lock catch is rotationally connected with the inner container; or the lock catch is in sliding connection with the inner container.

8. A dishwasher as in claim 1, wherein: the liner is provided with a limiting seat, and the connecting rod penetrates through the limiting seat and can rotate relative to the limiting seat.

9. A dishwasher as in claim 1, wherein: the door is characterized by further comprising a detection switch, wherein the detection switch is arranged on the inner container and is used for detecting the opening and closing states of the door body.

10. The dishwasher of claim 9, wherein: the door body is provided with the latch hook that is used for with hasp looks lock joint, dish washer still includes rotatable depression bar that sets up on the inner bag, the both ends of depression bar respectively with detecting switch reaches the latch hook corresponds the setting, when the door body is closed, the latch hook can the butt the one end of depression bar, and drive the depression bar is rotatory, makes the other end butt of depression bar detecting switch, in order to trigger detecting switch.

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