CN218684276U - Cleaning machine - Google Patents

Abstract

The utility model relates to a cleaning machine, which comprises a box body; the partition plate assembly comprises a fixing plate; moving the plate; the cleaning machine further comprises a positioning piece movably arranged on the fixed plate, the positioning piece is provided with a positioning part, and the positioning part is inserted into the positioning groove when the upper space and the lower space of the movable plate are communicated; the driving assembly is in driving connection with the positioning piece and is used for driving the positioning piece to move so that the positioning part is separated from the positioning groove or positioned in the positioning groove; the first elastic piece is connected with the moving plate, so that the moving plate always has a tendency of moving along the first direction. Therefore, the first elastic piece is used as a power source for driving the moving plate to reset, namely, the moving plate does not completely depend on the power of the driving assembly when moving along the first direction and the second direction, so that the power required to be output by the driving assembly can be reduced, and the energy is saved.

Description

Cleaning machine

Technical Field

The utility model relates to a dish washer technical field, concretely relates to cleaning machine.

Background

At present, the conventional dish washing machine on the market generally comprises a box body and a spraying device arranged in the box body, wherein the spraying device is used for drawing water at the bottom of the box body into a water spraying part and spraying the water into a washing cavity to wash dishes. The volume of the washing chamber of most dishwashers is fixed and cannot be changed according to the quantity of the washed dishes. When the quantity of the tableware to be cleaned is less, the tableware is placed in a larger washing cavity for cleaning, so that the cleaning effect is influenced, and the waste of water resources is caused.

In addition, in some dish washing machines with large capacity, users are used to store the dishes in the dish washing machine after the dish washing is finished, and in this case, if the number of the dishes used per meal is small, the dishes need to be washed together with the stored dishes when the dishes are washed next time, which also causes waste of water and electric resources.

In view of the above problems, the "dish washer" disclosed in the chinese utility model patent with patent number CN202023348649.2 (publication number CN 215383808U) includes: a box body having an inner cavity; the baffle plate assembly is arranged in the inner cavity of the box body and is used for dividing the inner cavity of the box body into an upper space and a lower space which are relatively independent; the baffle plate assembly includes: the fixing plate is transversely arranged in the middle of the box body and is connected with the inner side wall of the box body; a moving plate movably disposed on the fixed plate for cooperating with the fixed plate to separate the upper space from the lower space or to communicate the upper space with the lower space; further comprising: the coaming is arranged on the lower wall surface of the fixed plate, and a relatively independent mounting bin is formed between the coaming and the inner wall of the box body; the driving piece is arranged in the mounting bin, and the power output shaft penetrates through the enclosing plate to be connected with the moving plate.

When the number of the tableware to be cleaned is less, the movable plate of the partition plate assembly moves relative to the fixed plate to separate an upper space from a lower space, the upper space can be used for placing the cleaned tableware, and the lower space can be independently sprayed and cleaned, so that the box space is fully utilized, and the energy sources such as water, electricity and the like are saved; when the tableware to be cleaned is more, the moving plate of the partition plate assembly moves relative to the fixed plate to communicate the upper space with the lower space, and simultaneously, the tableware in the upper space and the lower space is cleaned.

In the above patent, at least the front part of the power output shaft is a screw, and the moving plate is connected with the screw through a nut pair, so that the length of the power output shaft is longer to meet the requirement of the moving stroke of the moving plate, which results in larger occupied space of the power output shaft.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that is to provide a cleaning machine that can wash the space according to the quantity adjustment of waiting to wash the tableware to the current situation of prior art.

The utility model discloses the second technical problem that will solve is to prior art's current situation, provides the lower cleaning machine of energy consumption that a drive movable plate removed.

The utility model provides a technical scheme that above-mentioned first and second technical problem adopted is: a cleaning machine comprises

A box body having an inner cavity;

the baffle plate assembly is arranged in the inner cavity of the box body, the baffle plate assembly can divide the inner cavity of the box body into an upper space and a lower space which are relatively independent, and the baffle plate assembly comprises

The fixing plate is transversely arranged in the middle of the box body and is connected with the inner side wall of the box body;

a moving plate disposed to be movable in a horizontal direction with respect to the fixed plate for partitioning or communicating an upper space from a lower space in cooperation with the fixed plate, the moving direction of the moving plate partitioning the upper space from the lower space being defined as a first direction, and the moving direction of the moving plate communicating the upper space with the lower space being defined as a second direction;

it is characterized in that the moving plate is provided with a positioning groove, and the cleaning machine further comprises

The positioning part is movably arranged on the fixed plate and provided with a positioning part, and the positioning part is inserted into the positioning groove in a state that the upper space and the lower space of the movable plate are communicated;

the driving assembly is in driving connection with the positioning piece and is used for driving the positioning piece to move so that the positioning part is separated from the positioning groove or positioned in the positioning groove;

the first elastic piece is connected with the moving plate, so that the moving plate always has a tendency of moving along the first direction.

In order to facilitate the matching of the fixed plate and the moving plate to separate or communicate the upper space and the lower space, the fixed plate is arranged close to the rear side of the box body, a notch for communicating the upper space with the lower space is formed between the fixed plate and the front side wall of the box body, the moving plate can be arranged on the fixed plate in a front-back sliding mode and used for opening or closing the notch, the first direction is forward, and the second direction is backward.

For convenience of assembly, the moving plate is arranged above or below the fixed plate, the moving plate is overlapped on the upper side or the lower side of the fixed plate when the notch is opened, and at least part of the moving plate is staggered with the fixed plate and covers the notch when the notch is closed.

For the ease of drive assembly drive setting element for location portion breaks away from or fixes a position in the constant head tank from the constant head tank, the setting element is the pilot pin, the front portion of pilot pin is equipped with location portion, the position at the neighbouring rear portion of pilot pin has the installation department, the shaft hole has been seted up on the installation department, be equipped with the round pin axle that extends along left right direction on the fixed plate, the round pin axle passes the shaft hole, the pilot pin can rotate for the round pin axle, drive assembly links to each other with the rear portion drive of pilot pin to make the rear portion of pilot pin to reciprocate, the notch of constant head tank up. The positioning needle is driven by the driving component to deflect up and down by taking the pin shaft as a rotating center so as to realize that the positioning part is separated from the positioning groove or positioned in the positioning groove.

The driving assembly can have various structural forms, such as a motor and a push rod connected with the motor in a driving mode, the push rod pushes the rear portion of the positioning needle to move up and down, but the positioning rod needs to be driven by the motor to move up and down, the energy consumption of the motor is high, so the driving assembly preferably comprises the motor, a shift lever and a second elastic piece, the second elastic piece acts on the portion, located on the rear side of the mounting portion, of the positioning needle to enable the rear portion of the positioning needle to keep the trend of moving upwards, and the shift lever is connected with the motor in a driving mode, so that the rear portion of the positioning needle is driven to move downwards. Therefore, the positioning needle can move upwards under the power of the second elastic piece, the power of the motor is not relied on, and the energy consumption is low.

The deflector rod can move up and down to push the positioning needle, but the positioning needle needs to have a certain installation height to occupy a space of a washing cavity of the cleaning machine in the vertical direction, and the washing cavity generally needs to be provided with components such as a bowl rack and the like in the vertical direction, so the structure is compact. Therefore, the deflector rod moves in the left and right directions to push the positioning needle, and the space of the washing cavity in the vertical direction cannot be greatly influenced.

In order to reduce the moving distance of the positioning portion, a fixed block is arranged on the top wall surface of the front portion of the moving plate, the positioning grooves are formed in the fixed block, and the positioning portions move downwards by a small distance to be inserted into the positioning grooves relative to the fact that the positioning grooves are directly arranged on the moving plate.

In order to guide the moving track of the positioning part, a sliding groove in sliding fit with the positioning part is arranged on the top wall surface of the fixed block, the rear end of the sliding groove penetrates through the top wall surface of the fixed block, and the front end of the sliding groove is communicated with the positioning groove.

Because the fixed block can move along with the moving plate, in order to prevent the positioning from interfering with the forward and backward movement of the fixed block and further influencing the movement of the moving plate, the rear wall surface of the fixed block is inclined backwards from top to bottom to form a first inclined surface. When the positioning part of the positioning needle is abutted to the first inclined plane, the front part of the positioning needle deflects upwards and enters the sliding groove until the moving plate moves to the position where the positioning needle is inserted into the positioning groove.

In the above scheme, the first elastic member is a spring and extends in the front-rear direction, one end of the first elastic member is connected with the moving plate, and the other end of the first elastic member is connected with the fixed plate. The working reliability of the spring is high, and the service life is long.

In the above aspect, preferably, the two first elastic members are disposed adjacent to the left and right sides of the moving plate, respectively, and the driving assembly is located between the two first elastic members to improve the motion stability of the moving plate.

In order to guide the moving track of the moving plate, a sliding rail extending forwards and backwards is fixedly arranged in the box body, a guide part is arranged on the moving plate, the sliding rail penetrates through the guide part, and the guide part can slide along the sliding rail. The movable plate can thus be moved along a predetermined trajectory to reliably cooperate with the fixed plate to separate or communicate the upper space from or with the lower space.

In order to improve the working reliability of the cleaning machine, a first trigger piece is arranged on the movable plate, a first microswitch is arranged on the fixed plate, and the first trigger piece triggers the first microswitch under the condition that the upper space and the lower space of the inner cavity of the box body are communicated; or the fixed plate is provided with a first trigger piece, the movable plate is provided with a first microswitch, and the first trigger piece triggers the first microswitch when the upper space and the lower space of the inner cavity of the box body are communicated. When the first microswitch is triggered, the moving plate moves to the right position, the upper space is communicated with the lower space, and the cleaning machine can be controlled to carry out full-cavity cleaning.

In order to further improve the working reliability of the cleaning machine, a second trigger piece is arranged on the movable plate, a second microswitch is arranged on the fixed plate, and the second trigger piece triggers the second microswitch in a state that the positioning part is inserted in the positioning groove; or, a second trigger piece is arranged on the fixed plate, a second microswitch is arranged on the movable plate, and the second trigger piece triggers the second microswitch when the positioning part is inserted in the positioning groove. When the second microswitch is triggered, the moving plate is fixed by the positioning needle, the moving plate cannot move forwards under the action of the first elastic piece, the upper space is communicated with the lower space, and the cleaning machine can be controlled to perform full-cavity cleaning.

Compared with the prior art, the utility model has the advantages that: 1. the cleaning machine of the utility model can adjust the cleaning space according to the number of the tableware, when the number of the tableware to be cleaned is less, the movable plate of the clapboard component moves relative to the fixed plate to separate the upper space from the lower space, the upper space can be used for placing the cleaned tableware, the lower space can be independently sprayed and cleaned, the space of the box body is fully utilized, and the energy sources such as water, electricity and the like are saved; when more tableware is needed to be cleaned, the movable plate of the partition plate assembly moves relative to the fixed plate to enable the upper space and the lower space to be communicated, and meanwhile, the tableware in the upper space and the lower space is cleaned; 2. the driving mechanism of the utility model comprises a driving component and a first elastic component, so that the first elastic component is used as a power source for driving the movable plate to reset, namely, the movable plate moves along the first direction and the second direction without completely depending on the power of the driving component, the power required to be output by the driving component can be reduced, and the energy is saved; 3. the utility model discloses a set up the setting element on the fixed plate, set up the constant head tank on the movable plate, cooperate with the state that is linked together upper portion space and lower part space at the movable plate under, location portion cartridge is in the constant head tank, guarantees that movable plate and fixed plate connect reliably, and the movable plate can not move towards the first direction under the effect of first elastic component.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention (the upper space is separated from the lower space);

FIG. 2 is a schematic structural view of the baffle plate assembly of FIG. 1;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a schematic view of the structure of FIG. 3 in another direction;

FIG. 5 is a schematic structural diagram of the fixing block in FIG. 2;

fig. 6 is a schematic structural diagram of an embodiment of the present invention (the upper space and the lower space are communicated);

FIG. 7 is a schematic structural view of the baffle plate assembly of FIG. 6;

FIG. 8 is an enlarged view of FIG. 7 at B;

fig. 9 is an enlarged view of fig. 7 at C.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 9, the cleaning machine of the preferred embodiment includes a tank 1, a partition plate assembly, and a driving mechanism.

As shown in fig. 1, the casing 1 has an inner cavity 11, and a partition plate assembly is provided in the inner cavity 11 of the casing 1, and the partition plate assembly can partition the inner cavity 11 of the casing 1 into an upper space 11a and a lower space 11b which are relatively independent.

As shown in fig. 2, the partition assembly includes a fixed plate 2 and a moving plate 3, the fixed plate 2 is disposed at a middle portion of the case 1 and fixedly connected to an inner sidewall of the case 1, the moving plate 3 is disposed to be movable in a horizontal direction with respect to the fixed plate 2 for partitioning the upper space 11a from the lower space 11b or communicating the upper space 11a with the lower space 11b in cooperation with the fixed plate 2, a moving direction of the moving plate 3 toward the upper space 11a from the lower space 11b is defined as a first direction, and a moving direction of the moving plate 3 toward the lower space 11b is defined as a second direction.

As shown in fig. 1 and 6, in the present embodiment, the fixed plate 2 is disposed close to the rear side of the case 1, a notch 11c for communicating the upper space 11a with the lower space 11b is formed between the fixed plate 2 and the front side wall of the case 1, the moving plate 3 is disposed below the fixed plate 2, and the moving plate 3 is slidably disposed on the fixed plate 2 in the front-back direction for opening or closing the notch 11 c.

As shown in fig. 6, in a state where the notch 11c is opened, the moving plate 3 is overlapped on the lower side of the fixed plate 2; as shown in fig. 1, in a state where the notch 11c is closed, at least a portion of the moving plate 3 is staggered with the fixed plate 2 and covers the notch 11 c. As can be seen from the above, the first direction is a forward direction, and the second direction is a backward direction.

Of course, the moving plate 3 may be disposed above the fixed plate 2, the moving plate 3 may overlap the upper side of the fixed plate 2 in a state where the notch 11c is opened, and at least a part of the moving plate 3 may overlap the fixed plate 2 and cover the notch 11c in a state where the notch 11c is closed.

As shown in fig. 2, a slide rail 12 extending forward and backward is fixedly disposed in the case 1, a guide portion 31 is disposed on the moving plate 3, the slide rail 12 passes through the guide portion 31, and the guide portion 31 can slide along the slide rail 12. The moving plate 3 can thus move along a predetermined trajectory to reliably engage with the fixed plate 2, separating or communicating the upper space 11a and the lower space 11b. In this embodiment, the slide rail 12 is fixedly disposed on the fixed plate 2, the slide rails 12 are disposed on both left and right sides of the fixed plate 2, and the guide portions 31 are correspondingly disposed on both left and right sides of the moving plate 3.

The driving mechanism is arranged in the inner cavity 11 of the box body 1 and is connected with the moving plate 3 in a driving mode, so that the moving plate 3 moves forwards and backwards to separate or communicate the upper space 11a and the lower space 11b.

The driving mechanism comprises a driving assembly and a first elastic element 4, wherein the first elastic element 4 is connected with the moving plate 3, so that the moving plate 3 always has a tendency of moving forwards, and under the condition that the driving assembly unlocks the moving plate 3, the moving plate 3 moves forwards under the action of the first elastic element 4 and is matched with the fixed plate 2 to separate the upper space 11a from the lower space 11b.

As shown in fig. 2 to 5 and 9, in this embodiment, the fixing plate 2 is provided with a positioning element capable of rotating relative to the fixing plate, the positioning element is a positioning pin 5, the front portion of the positioning pin 5 is provided with a positioning portion 51, a position of the positioning pin 5 adjacent to the rear portion is provided with a mounting portion 52, the mounting portion 52 is provided with a shaft hole 521, the fixing plate 2 is provided with a pin shaft 21 extending along the left-right direction, the pin shaft 21 penetrates through the shaft hole 521, and the positioning pin 5 can rotate relative to the pin shaft 21.

The top wall surface of the front part of the moving plate 3 is provided with a fixed block 6, the fixed block 6 is provided with a positioning groove 61, the notch of the positioning groove 61 faces upwards, the top wall surface of the fixed block 6 is provided with a sliding groove 62 in sliding fit with the positioning part 51, the rear end of the sliding groove 62 penetrates through the top wall surface of the fixed block 6, the front end of the sliding groove 62 is communicated with the positioning groove 61, and the rear wall surface of the fixed block 6 inclines backwards from top to bottom to form a first inclined surface 63.

The driving assembly is drivingly connected to the rear portion of the pilot pin 5 so that the rear portion of the pilot pin 5 can move up and down to disengage the position fixing portion 51 from the position fixing groove 61 or to position the position fixing portion in the position fixing groove 61.

In this embodiment, the driving assembly includes a motor 7, a shift lever 71 and a second elastic member 8, the second elastic member 8 acts on the rear portion of the positioning needle 5 at the mounting portion 52 to keep the rear portion of the positioning needle 5 moving upward, so that the front portion of the positioning needle 5 keeps moving downward, and the positioning portion 51 keeps inserting in the positioning groove 61. In this embodiment, the second elastic member 8 is a spring, and has a lower end abutting against the fixed plate 2 and a rear end abutting against the rear portion of the positioning pin 5.

The shifting rod 71 is in driving connection with the motor 7, so as to drive the rear part of the positioning needle 5 to move downwards, in the embodiment, the shifting rod 71 is connected with the motor 7 through a sliding block 72.

The shifting lever 71 is arranged at the side of the rear part of the positioning needle 5, the shifting lever 71 can move towards or away from the positioning needle 5, namely, the shifting lever 71 can move left and right, the end part of the shifting lever 71 facing the positioning needle 5 is a second inclined surface 711 which is inclined towards the direction away from the positioning needle 5 from top to bottom, and the second inclined surface 711 can abut against the rear part of the positioning needle 5 so as to force the rear part of the positioning needle 5 to move downwards.

As shown in fig. 2 and 3, in the present embodiment, the first elastic member 4 is a spring and extends in the front-rear direction, and one end of the first elastic member 4 is connected to the moving plate 3 and the other end is connected to the fixed plate 2. The first elastic members 4 are provided in two and adjacent to the left and right sides of the moving plate 3, respectively, and the driving assembly is located between the two first elastic members 4. The front portion of the fixing plate 2 is provided with a receiving groove 24, and the driving assembly is disposed in the receiving groove 24.

As shown in fig. 5 and 9, the moving plate 3 is provided with a second trigger 33, the fixed plate 2 is provided with a second microswitch 22, and the second trigger 33 triggers the second microswitch 22 in a state where the positioning portion 51 is inserted in the positioning groove 61. In this embodiment, the second trigger 33 is disposed on the fixed block 6, the second trigger 33 has a third inclined surface 331 inclined from front to back in a direction away from the second microswitch 22, the second microswitch 22 is provided with a spring piece 221, and the spring piece 221 triggers the contact 222 of the second microswitch 22 when being pressed by the third inclined surface 331.

Of course, the second trigger 33 may be provided on the fixed plate 2, the second microswitch 22 may be provided on the moving plate 3, and the second trigger 33 may trigger the second microswitch 22 in a state where the positioning portion 51 is inserted in the positioning groove 61. When the second microswitch 22 is triggered, the moving plate 3 is fixed by the positioning needle 5, the moving plate 3 does not move forward under the action of the first elastic element 4, the upper space 11a is communicated with the lower space 11b, and the cleaning machine can be controlled to perform full-cavity cleaning.

In order to further improve the safety, as shown in fig. 8, a fixed member 30 is disposed on the moving plate 3, a first trigger 32 is disposed on the fixed member 30, and a first microswitch 23 is further disposed on the fixed plate 2, and in a state where the upper space 11a and the lower space 11b of the inner cavity 11 of the case 1 are communicated, the first elastic member 4 is compressed to a limit state, and the first microswitch 23 is triggered by the first trigger 32. Of course, the first trigger 32 may be provided on the fixed plate 2, the first microswitch 23 may be provided on the movable plate 3, and the first trigger 32 may trigger the first microswitch 23 in a state where the upper space 11a and the lower space 11b of the inner cavity 11 of the case 1 communicate with each other. When the first microswitch 23 is triggered, the moving plate 3 is moved to the right position, the upper space 11a is communicated with the lower space 11b, and the cleaning machine can be controlled to carry out full-cavity cleaning. The first trigger 32 may be a signal magnet.

The working process of the cleaning machine of the embodiment is as follows:

when a half-cavity wash is required: the motor 7 works to drive the shift lever 71 to move towards the rear part of the positioning needle 5, when the second inclined surface 711 of the shift lever 71 abuts against the positioning needle 5, the shift lever 71 continues to move towards the positioning needle 5, the rear part of the positioning needle 5 is forced to move downwards, the front part of the positioning needle 5 moves upwards, the positioning part 51 is separated from the positioning groove 61, the moving plate 3 is unlocked, the moving plate 3 moves forwards under the action of the first elastic element 4 until the moving plate cooperates with the fixed plate 2 to separate the upper space 11a from the lower space 11b, as shown in fig. 1.

When full-cavity washing is required: and manually pushing the movable plate 3 backwards until the positioning part 51 of the positioning needle 5 contacts the second inclined surface 711 of the fixed block 6, continuing to push the movable plate 3 backwards, enabling the positioning part 51 to enter the sliding groove 62 from the first inclined surface 63 until the movable plate 3 is pushed backwards until the positioning part 51 is clamped in the positioning groove 61, locking the movable plate 3, enabling the movable plate 3 to be matched with the fixed plate 2 to communicate the upper space 11a with the lower space 11b, and enabling the first trigger 32 to trigger the first microswitch 23 and the second trigger 33 to trigger the second microswitch 22 as shown in fig. 6.

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", etc. indicate the orientation or positional relationship indicated 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, since the disclosed embodiments of the invention can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims (14)

1. A cleaning machine comprises

A box body (1) having an inner cavity (11);

the baffle plate assembly is arranged in the inner cavity (11) of the box body (1), the baffle plate assembly can separate the inner cavity (11) of the box body (1) into an upper space (11 a) and a lower space (11 b) which are relatively independent, and the baffle plate assembly comprises

The fixing plate (2) is transversely arranged in the middle of the box body (1) and is connected with the inner side wall of the box body (1);

a moving plate (3) arranged to be movable in a horizontal direction relative to the fixed plate (2) for partitioning an upper space (11 a) from a lower space (11 b) or communicating the upper space (11 a) with the lower space (11 b) in cooperation with the fixed plate (2), a moving direction of the moving plate (3) toward the upper space (11 a) from the lower space (11 b) being defined as a first direction, and a moving direction of the moving plate (3) toward the upper space (11 a) from the lower space (11 b) being defined as a second direction;

characterized in that the moving plate (3) is provided with a positioning groove (61), and the cleaning machine further comprises

The positioning piece is movably arranged on the fixed plate (2) and provided with a positioning part (51), and the positioning part (51) is inserted into the positioning groove (61) in the state that the upper space (11 a) and the lower space (11 b) are communicated with each other by the moving plate (3);

the driving assembly is in driving connection with the positioning piece and is used for driving the positioning piece to move, so that the positioning part (51) is separated from the positioning groove (61) or positioned in the positioning groove (61);

and the first elastic piece (4) is connected with the moving plate (3) so that the moving plate (3) always has a tendency of moving along the first direction.

2. The cleaning machine of claim 1, wherein: the fixed plate (2) is arranged close to the rear side of the box body (1), a notch (11 c) for communicating the upper space (11 a) with the lower space (11 b) is formed between the fixed plate (2) and the front side wall of the box body (1), the movable plate (3) can slide back and forth and is arranged on the fixed plate (2) and used for opening or closing the notch (11 c), the first direction is forward, and the second direction is backward.

3. The washing machine as claimed in claim 2, wherein: the movable plate (3) is arranged above or below the fixed plate (2), the movable plate (3) is overlapped on the upper side or the lower side of the fixed plate (2) when the notch (11 c) is opened, and at least part of the movable plate (3) is staggered with the fixed plate (2) and covers the notch (11 c) when the notch (11 c) is closed.

4. The cleaning machine of claim 2, wherein: the setting element is pilot pin (5), the front portion of pilot pin (5) is equipped with location portion (51), the position that pilot pin (5) are close to the rear portion has installation department (52), shaft hole (521) have been seted up on installation department (52), be equipped with round pin axle (21) that extend along left right direction on fixed plate (2), round pin axle (21) pass shaft hole (521), pilot pin (5) can rotate for round pin axle (21), drive assembly links to each other with the rear portion drive of pilot pin (5) to make the rear portion of pilot pin (5) can reciprocate, the notch of constant head tank (61) is up.

5. The washing machine as claimed in claim 4, wherein: the driving assembly comprises a motor (7), a shifting rod (71) and a second elastic piece (8), the second elastic piece (8) acts on the rear side of the mounting portion (52) of the positioning needle (5), the rear portion of the positioning needle (5) keeps the trend of moving upwards, and the shifting rod (71) is connected with the motor (7) in a driving mode, so that the rear portion of the positioning needle (5) is driven to move downwards.

6. The cleaning machine of claim 5, wherein: the shifting lever (71) is arranged on the side of the rear part of the positioning needle (5), the shifting lever (71) can move towards or away from the positioning needle (5), the end part of the shifting lever (71) facing the positioning needle (5) is a second inclined surface (711) which inclines from top to bottom towards the direction away from the positioning needle (5), and the second inclined surface (711) can abut against the rear part of the positioning needle (5) so as to force the rear part of the positioning needle (5) to move downwards.

7. The cleaning machine of claim 5, wherein: the top wall face of the front part of the moving plate (3) is provided with a fixed block (6), and the fixed block (6) is provided with the positioning groove (61).

8. The cleaning machine of claim 7, wherein: the top wall surface of the fixed block (6) is provided with a sliding groove (62) in sliding fit with the positioning part (51), the rear end of the sliding groove (62) penetrates through the top wall surface of the fixed block (6), and the front end of the sliding groove (62) is communicated with the positioning groove (61).

9. The cleaning machine of claim 8, wherein: the rear wall surface of the fixed block (6) is inclined backwards from top to bottom to form a first inclined surface (63).

10. The washing machine as claimed in claim 2, wherein: the first elastic piece (4) is a spring and extends in the front-back direction, one end of the first elastic piece (4) is connected with the moving plate (3), and the other end of the first elastic piece is connected with the fixed plate (2).

11. The cleaning machine of claim 10, wherein: the two first elastic pieces (4) are respectively arranged adjacent to the left side and the right side of the moving plate (3), and the driving assembly is positioned between the two first elastic pieces (4).

12. The washing machine as claimed in claim 2, wherein: slide rail (12) that extend around fixed being equipped with in box (1), be equipped with guide part (31) on movable plate (3), guide part (31) are passed in slide rail (12), slide rail (12) can be followed in guide part (31) and slide.

13. The cleaning machine according to any one of claims 1 to 12, characterized in that: a first trigger piece (32) is arranged on the movable plate (3), a first microswitch (23) is arranged on the fixed plate (2), and the first microswitch (23) is triggered by the first trigger piece (32) under the condition that the upper space (11 a) and the lower space (11 b) of the inner cavity (11) of the box body (1) are communicated; or, be equipped with first trigger (32) on fixed plate (2), be equipped with first micro-gap switch (23) on movable plate (3), under the state that upper portion space (11 a) and lower part space (11 b) of inner chamber (11) of box (1) are linked together, first micro-gap switch (23) are triggered in first trigger (32).

14. The cleaning machine according to any one of claims 1 to 12, characterized in that: a second trigger piece (33) is arranged on the moving plate (3), a second microswitch (22) is arranged on the fixed plate (2), and the second trigger piece (33) triggers the second microswitch (22) under the condition that the positioning part (51) is inserted in the positioning groove (61); or, be equipped with second trigger (33) on fixed plate (2), be equipped with second micro-gap switch (22) on movable plate (3), under the state that location portion (51) were inserted and are established in constant head tank (61), second trigger (33) trigger second micro-gap switch (22).

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