A closed structure for a cleaning tank

Abstract

The present invention belongs to the technical field of device cleaning, and discloses a sealing structure of a cleaning chamber. The sealing structure of the cleaning chamber is used to seal the hatch provided at the end of the cleaning chamber. The sealing structure of the cleaning chamber includes a sealing groove, a sealing door and an air valve. The sealing groove is arranged at the end of the cleaning chamber and surrounds the outer periphery of the hatch. The opening direction of the sealing groove is the same as the opening direction of the hatch. A sealing ring is accommodated in the sealing groove. The sealing door can move along a direction parallel to the end face of the cleaning chamber, and has a first working position facing the hatch and a second working position away from the hatch. The air valve is communicated with the sealing groove and can blow air to the side of the sealing ring close to the bottom of the sealing groove, so that the side of the sealing ring away from the bottom of the sealing groove abuts against the sealing door located at the first working position. The present invention can ensure that the liquid or gas in the cleaning chamber will not leak during the cleaning operation.

Description

Technical Field

[0001] The present invention relates to the technical field of device cleaning, and particularly to a sealing structure of a cleaning chamber. Background Art

[0002] Currently, general device cleaners usually perform cleaning operations on devices through processes such as leak detection, rinsing, cleaning, rinsing, disinfection, and drying. In the prior art, the above cleaning operations are generally carried out in a cleaning chamber. To ensure the normal progress of the cleaning operations, after the device to be cleaned is placed into the cleaning chamber through the hatch, the hatch of the cleaning chamber needs to be closed. In the prior art, the hatch of the cleaning chamber is generally opened or closed through a hinged door, but the sealing performance between the hinged door and the cleaning chamber is poor, resulting in easy leakage of liquid or gas in the cleaning chamber during the cleaning operation.

[0003] Therefore, the above problems need to be solved urgently. Summary of the Invention

[0004] The purpose of the present invention is to provide a sealing structure of a cleaning chamber to solve the problem of easy leakage of liquid or gas in the cleaning chamber during the cleaning operation.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A sealing structure of a cleaning chamber, used to seal the hatch provided at the end of the cleaning chamber, the sealing structure of the cleaning chamber includes:

[0007] A sealing groove, provided at the end of the cleaning chamber and surrounding the outer periphery of the hatch, the opening direction of the sealing groove is the same as the opening direction of the hatch, and a sealing ring is accommodated in the sealing groove;

[0008] A sealing door, capable of moving in a direction parallel to the end face of the cleaning chamber, and having a first working position facing the hatch and a second working position away from the hatch; and

[0009] An air valve, communicating with the sealing groove and capable of blowing air to the side of the sealing ring close to the bottom of the sealing groove, so that the side of the sealing ring away from the bottom of the sealing groove abuts against the sealing door located at the first working position.

[0010] Preferably, the sealing structure of the cleaning chamber further includes a guiding member, and the guiding member is configured to guide the sealing door to move in a direction parallel to the end face of the cleaning chamber.

[0011] Preferably, the guiding member includes:

[0012] A sliding groove, opened on the cleaning chamber and extending in a direction parallel to the end face of the cleaning chamber; and

[0013] The roller is arranged on the sealing door, accommodated in the chute and capable of rolling along the chute wall.

[0014] Preferably, an avoidance groove is formed in the chute wall on the side of the chute away from the sealing door along the opening direction of the hatch. When the cleaning chamber is in a negative pressure state, the roller on the sealing door at the first working position is aligned with the avoidance groove, and the roller can move into the avoidance groove.

[0015] Preferably, the length of the avoidance groove along the extension direction of the chute gradually decreases from the side close to the sealing door to the side away from the sealing door.

[0016] Preferably, the opening direction of the chute is perpendicular to the opening direction of the hatch.

[0017] Preferably, the closed structure of the cleaning chamber further includes:

[0018] Two transmission wheels, which are arranged at intervals along the direction parallel to the end face of the cleaning chamber; and

[0019] A transmission belt is wound between the two transmission wheels, and the sealing door is fixedly connected to the transmission belt through a connecting block.

[0020] Preferably, the closed structure of the cleaning chamber further includes a position detection component, which is configured to detect the position of the sealing door.

[0021] Preferably, the closed structure of the cleaning chamber further includes a pressure prevention member, which is configured to detect whether the sealing door bears the pressure from the first working position towards the second working position when the sealing door is at the first working position.

[0022] Preferably, the pressure prevention member includes a first mounting plate, a second mounting plate, a spring, a light shielding plate and a groove type photoelectric switch. The first mounting plate is mounted on the sealing door and located on the side of the sealing door close to the downstream of its moving path from the second working position to the first working position. A first mounting post is arranged on the first mounting plate, and a mounting groove is arranged on the first mounting post. A second mounting post is arranged on the second mounting plate. The first mounting post is sleeved on the outer periphery of the second mounting post through the mounting groove. The spring is sleeved on the outer peripheries of the first mounting post and the second mounting post and abuts between the first mounting plate and the second mounting plate. The light shielding plate and the groove type photoelectric switch are alternatively arranged on the opposite sides of the first mounting plate and the second mounting plate, and the light shielding plate can extend into the detection groove of the groove type photoelectric switch.

[0023] Advantages of the present invention: In the present invention, the sealing door moved to the first working position can close the hatch of the cleaning chamber, and the sealing ring can be abutted against the sealing door under the action of the air valve to closely adhere to the sealing door, thereby realizing the sealing between the cleaning chamber and the sealing door, and further ensuring that the liquid or gas in the cleaning chamber will not leak during the cleaning operation. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the cleaning chamber and the closing structure of the cleaning chamber in an embodiment of the present invention;

[0025] Figure 2 is a schematic structural diagram of the cleaning chamber and the closing structure of the cleaning chamber except for the mounting block in an embodiment of the present invention;

[0026] Figure 3 is along Figure 1 the sectional view taken along line A-A in

[0027] Figure 4 is Figure 1 the partial enlarged view at B in

[0028] Figure 5 is Figure 2 the partial enlarged view at C in

[0029] Figure 6 is Figure 3 the partial enlarged view at D in

[0030] Figure 7 is a schematic structural diagram of the pressure prevention member in an embodiment of the present invention.

[0031] In the figure:

[0032] 100. Cleaning chamber; 110. Hatch;

[0033] 210. Sealing groove;

[0034] 220. Sealing ring;

[0035] 230. Sealing door; 231. Connecting block;

[0036] 240. Air valve;

[0037] 250. Guide member; 251. Sliding groove; 2511. Avoidance groove; 252. Roller; 253. Mounting shaft; 254. Mounting block;

[0038] 261. Driving wheel; 262. Transmission belt;

[0039] 271. Travel switch; 272. Stopper;

[0040] 280. Anti-pressure member; 281. First mounting plate; 2811. First mounting post; 282. Second mounting plate; 2821. Second mounting post; 283. Spring; 284. Light-shielding plate; 285. Groove-type photoelectric switch. Detailed implementation mode

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only the parts related to the present invention are shown in the drawings, rather than all the structures.

[0042] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0044] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0045] Based on the foregoing, current device cleaners generally perform cleaning operations on devices through processes such as leak detection, rinsing, cleaning, rinsing, disinfection, and drying. Among them, during the rinsing, cleaning, rinsing, and disinfection processes, the cleaning chamber is filled with liquid for washing or disinfecting the devices, and during the leak detection and drying processes, the cleaning chamber is filled with gas. Due to the poor sealing performance between the hinged door for closing the hatch of the cleaning chamber and the cleaning chamber in the prior art, the liquid or gas in the cleaning chamber is likely to leak during the cleaning operation.

[0046] To solve the above problems, please refer to Figures 1 to 7 , this embodiment provides a closing structure for a cleaning chamber. The closing structure of the cleaning chamber is used to close the hatch 110 provided at the end of the cleaning chamber 100. The closing structure of the cleaning chamber includes a sealing groove 210, a sealing door 230, and a gas valve 240. The sealing groove 210 is provided at the end of the cleaning chamber 100 and is arranged around the outer periphery of the hatch 110. The opening direction of the sealing groove 210 is the same as the opening direction of the hatch 110. A sealing ring 220 is accommodated in the sealing groove 210. The sealing door 230 can move in a direction parallel to the end face of the cleaning chamber 100 and has a first working position facing the hatch 110 and a second working position away from the hatch 110. The gas valve 240 is communicated with the sealing groove 210 and can blow air to the side of the sealing ring 220 close to the bottom of the sealing groove 210, so that the side of the sealing ring 220 away from the bottom of the sealing groove 210 abuts against the sealing door 230 located at the first working position.

[0047] In this embodiment, the sealing door 230 moved to the first working position can close the hatch 110 of the cleaning chamber 100, and the sealing ring 220 can abut against the sealing door 230 under the action of the gas valve 240 to closely adhere to the sealing door 230, thereby realizing the sealing between the cleaning chamber 100 and the sealing door 230, and further ensuring that the liquid or gas in the cleaning chamber 100 will not leak during the cleaning operation.

[0048] Specifically, the hatch 110 of the cleaning chamber 100 in this embodiment is opened in the horizontal direction. Correspondingly, the sealing door 230 can move in the vertical direction. The following examples are all based on this. When the sealing door 230 is in the second working position, the hatch 110 of the cleaning chamber 100 is opened, and the staff can place the devices to be cleaned into the cleaning chamber 100 through the hatch 110. When the sealing door 230 moves from the second working position to the first working position in the vertical direction, the gas valve 240 blows air into the sealing groove 210 to apply a thrust to the sealing ring 220 and make the sealing ring 220 abut against the sealing door 230. The gas valve 240 always blows air into the sealing groove 210 during the cleaning process to keep the sealing ring 220 closely adhered to the sealing door 230, thereby ensuring that the liquid or gas in the cleaning chamber 100 will not leak during the cleaning operation.

[0049] It is understandable that, for the convenience of the sealing door 230 to be able to move vertically to the second working position after the cleaning operation, there is a spacing between the sealing door 230 and the cleaning chamber 100 in the horizontal direction in this embodiment. When the sealing door 230 moves vertically from the second working position to the first working position, the sealing ring 220 can be pushed by the air valve 240 and move towards the sealing door 230 to abut against the sealing door 230. After the cleaning operation is completed, the air valve 240 can suck air from the sealing groove 210, so that the sealing ring 220 moves away from the sealing door 230, thereby separating from the sealing door 230, so as to avoid hindering the movement of the sealing door 230 due to friction when the sealing door 230 moves from the first working position to the second working position.

[0050] To ensure that the sealing door 230 can accurately move from the second working position to the first working position, the closing structure of the cleaning chamber in this embodiment further includes a guiding member 250, and the guiding member 250 is configured to guide the sealing door 230 to move along a direction parallel to the end face of the cleaning chamber 100.

[0051] In this embodiment, the guiding member 250 preferably includes a sliding groove 251 and a roller 252. The sliding groove 251 is opened on the cleaning chamber 100 and extends along a direction parallel to the end face of the cleaning chamber 100. The roller 252 is arranged on the sealing door 230. In this embodiment, the roller 252 is installed on the mounting block 254 through the mounting shaft 253, and the mounting block 254 is fixedly connected to the sealing door 230. The roller 252 is received in the sliding groove 251 and can roll along the groove wall of the sliding groove 251. The groove wall of the sliding groove 251 can provide a guiding effect for the roller 252, and further provide a guiding effect for the movement of the sealing door 230.

[0052] Preferably, in this embodiment, the opening direction of the sliding groove 251 is perpendicular to the opening direction of the hatch 110. The groove wall of the sliding groove 251 along the opening direction of the hatch 110 can limit the position of the roller 252, so as to avoid driving the sealing door 230 to move towards the side away from the sealing groove 210 together when the sealing ring 220 abuts against the sealing door 230 under the action of the air valve 240, thereby avoiding the sealing ring 220 separating from the sealing groove 210. At the same time, it further ensures that the sealing ring 220 can keep closely attached to the sealing door 230, thereby further ensuring that the liquid or gas in the cleaning chamber 100 does not leak during the cleaning operation.

[0053] Furthermore, the closing structure of the cleaning chamber in this embodiment further includes two transmission wheels 261 and a transmission belt 262. The two transmission wheels 261 are arranged at intervals in a direction parallel to the end face of the cleaning chamber 100. The transmission belt 262 is wound between the two transmission wheels 261. The sealing door 230 is fixedly connected to the transmission belt 262 through a connecting block 231. The transmission belt 262 can drive the sealing door 230 to move up and down in the vertical direction under the action of the two transmission wheels 261.

[0054] To ensure that the sealing door 230 can be accurately maintained at the first working position, the closing structure of the cleaning chamber in this embodiment further includes a position detection component. The position detection component is configured to detect the position of the sealing door 230 and is electrically connected to a driving member (not shown in the figure) for controlling the operation of the transmission wheel 261. When the sealing door 230 moves to the first working position, the position detection component controls the driving member to stop driving.

[0055] In this embodiment, the position detection component includes a stop block 272 and a travel switch 271. The stop block 272 is fixedly connected to the sealing door 230. The travel switch 271 is located on the moving path of the stop block 272. When the sealing door 230 moves to the first working position, the travel switch 271 is triggered and the driving member stops driving. It can be understood that two travel switches 271 are provided in this embodiment. One travel switch 271 can be triggered when the sealing door 230 moves to the first working position, and the other travel switch 271 can be triggered when the sealing door 230 moves to the second working position.

[0056] Of course, in other alternative embodiments, the position detection component can also be set as a photoelectric switch, etc. This embodiment does not make specific restrictions on this.

[0057] During the cleaning operation, the interior of the cleaning chamber 100 has three states: negative pressure, normal pressure, and positive pressure. In this embodiment, an avoidance groove 2511 is formed on the groove wall of the chute 251 on the side away from the sealing door 230 along the opening direction of the hatch 110. Based on the content described above, there is a spacing between the sealing door 230 and the cleaning chamber 100 in the horizontal direction in this embodiment. When the cleaning chamber 100 is in a negative pressure state, a thrust force towards the interior of the cleaning chamber 100 is applied to the sealing door 230. In this embodiment, the extending direction of the axis of the roller 252 is parallel to the opening direction of the chute 251. The roller 252 on the sealing door 230 located at the first working position is aligned with the avoidance groove 2511. At the same time, since the sealing door 230 is driven to move up and down by the transmission belt 262 in this embodiment, the parts of the transmission belt 262 on both sides of the transmission wheel 261 can approach each other when pressure is applied. Therefore, the roller 252 can move into the avoidance groove 2511 when a thrust force towards the interior of the cleaning chamber 100 is applied, that is, when the interior of the cleaning chamber 100 is in a negative pressure state, the sealing door 230 can move towards the cleaning chamber 100, and the sealing ring 220 can be squeezed and confined between the bottom of the sealing groove 210 and the sealing door 230, thereby further ensuring the sealing performance between the cleaning chamber 100 in the negative pressure state and the sealing door 230.

[0058] It can be understood that when the cleaning chamber 100 is in a normal pressure or positive pressure state, due to the limiting effect of the groove wall of the chute 251, the sealing door 230 will not move towards the side away from the cleaning chamber 100, and the sealing ring 220 can be pushed by the air valve 240 and move towards the sealing door 230 to abut against the sealing door 230, thereby achieving sealing.

[0059] Furthermore, the length of the avoidance groove 2511 along the extending direction of the chute 251 gradually decreases from the side close to the sealing door 230 to the side away from the sealing door 230. When the roller 252 moves into the avoidance groove 2511, the roller 252 can move along the groove wall of the avoidance groove 2511, that is, the groove wall of the avoidance groove 2511 can guide the roller 252. Based on the content described above, in this embodiment, the parts of the transmission belt 262 on both sides of the transmission wheel 261 are made to approach each other so that the roller 252 can move into the avoidance groove 2511. When the parts of the transmission belt 262 on both sides of the transmission wheel 261 approach each other, the vertical position of the sealing door 230 may change slightly. In this embodiment, by setting the avoidance groove 2511, the sealing door 230 can generate a displacement in the vertical direction when the roller 252 moves along the groove wall of the avoidance groove 2511, thereby correcting the position of the sealing door 230, ensuring that the sealing door 230 is accurately located at the first working position, and further ensuring that the sealing ring 220 can be fully attached to the sealing door 230 to further ensure the sealing performance between the cleaning chamber 100 in the negative pressure state and the sealing door 230.

[0060] If there is an obstacle at the top of the sealing door 230 in the first working position, the gravity of the obstacle may cause the sealing door 230 to deviate from the first working position, resulting in ineffective sealing between the sealing door 230 and the cleaning chamber 100. To solve the above problems, the closing structure of the cleaning chamber in this embodiment further includes a pressure prevention member 280, which is configured to detect whether the sealing door 230 bears the pressure from the first working position towards the second working position when the sealing door 230 is in the first working position, that is, the pressure prevention member 280 can detect whether the sealing door 230 bears downward pressure when the sealing door 230 is in the first working position. If the sealing door 230 bears downward pressure when it is in the first working position, an alarm signal is sent to the staff to remind the staff to remove the obstacle, thereby further ensuring the sealing performance between the cleaning chamber 100 and the sealing door 230.

[0061] In this embodiment, the pressure prevention member 280 includes a first mounting plate 281, a second mounting plate 282, a spring 283, a light shielding plate 284 and a groove type photoelectric switch 285. The first mounting plate 281 is mounted on the sealing door 230 and is located on the side of the sealing door 230 close to the downstream of its moving path from the second working position to the first working position, that is, the first mounting plate 281 is located at the top of the sealing door 230. A first mounting post 2811 is provided on the first mounting plate 281, and an installation groove (not shown in the figure) is provided on the first mounting post 2811. A second mounting post 2821 is provided on the second mounting plate 282. The first mounting post 2811 is sleeved on the outer periphery of the second mounting post 2821 through the installation groove. The first mounting plate 281 and the second mounting plate 282 are arranged oppositely. The spring 283 is sleeved on the outer peripheries of the first mounting post 2811 and the second mounting post 2821 and abuts between the first mounting plate 281 and the second mounting plate 282. The light shielding plate 284 and the groove type photoelectric switch 285 are alternatively arranged on the opposite sides of the first mounting plate 281 and the second mounting plate 282. When the second mounting plate 282 bears downward pressure, the light shielding plate 284 can extend into the detection groove of the groove type photoelectric switch 285.

[0062] It can be understood that the pressure prevention member 280 in this embodiment can also detect whether there is an obstacle on the moving path of the sealing door 230 when the sealing door 230 moves from the second working position to the first working position, so as to ensure that the sealing door 230 can move from the second working position to the first working position. Moreover, if the obstacle is the hand of the staff, the pressure prevention member 280 in this embodiment can also prevent the staff from being in danger.

[0063] It can be understood that hatches 110 are provided at both ends of the cleaning chamber 100 in this embodiment. Correspondingly, sealing doors 230 are provided on both sides of the cleaning chamber 100, and sealing rings 220 are provided at both ends of the cleaning chamber 100. Of course, in other alternative embodiments, a hatch 110 may be provided only at one end of the cleaning chamber 100, and a sealing door 230 may be provided on the side of the hatch 110 away from the interior of the cleaning chamber 100. No specific limitation is made in this embodiment.

[0064] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A closed structure for a cleaning chamber, which is used to close a hatch (110) disposed at the end of the cleaning chamber (100), and is characterized in that, The closed structure of the cleaning chamber includes: A sealing groove (210) is provided at the end of the cleaning chamber (100) and is disposed around the outer periphery of the hatch (110). The opening direction of the sealing groove (210) is the same as the opening direction of the hatch (110), and a sealing ring (220) is disposed in the sealing groove (210); A sealing door (230) that can move in a direction parallel to the end face of the cleaning chamber (100) and has a first working position facing the hatch (110) and a second working position away from the hatch (110); and An air valve (240) that communicates with the sealing groove (210) and can blow air to the side of the sealing ring (220) close to the bottom of the sealing groove (210), so that the side of the sealing ring (220) away from the bottom of the sealing groove (210) abuts against the sealing door (230) in the first working position; The closed structure of the cleaning chamber further includes a guiding member (250); The guiding member (250) includes: A sliding groove (251) is formed on the cleaning chamber (100) and extends in a direction parallel to the end face of the cleaning chamber (100); and A roller (252) is provided on the sealing door (230). The roller (252) is received in the sliding groove (251) and can roll along the groove wall of the sliding groove (251); An avoidance groove (2511) is formed on the groove wall of the sliding groove (251) on the side away from the sealing door (230) along the opening direction of the hatch (110); The length of the avoidance groove (2511) in the extending direction of the sliding groove (251) gradually decreases from the side close to the sealing door (230) to the side away from the sealing door (230); The closed structure of the cleaning chamber further includes a pressure prevention member (280). The pressure prevention member (280) is configured to detect whether the sealing door (230) bears pressure from the first working position towards the second working position when the sealing door (230) is in the first working position; The anti-pressure member (280) includes a first mounting plate (281), a second mounting plate (282), a spring (283), a light-shielding plate (284) and a groove-type photoelectric switch (285). The first mounting plate (281) is mounted on the sealing door (230) and is located on one side of the sealing door (230) close to the downstream of its moving path from the second working position to the first working position. A first mounting post (2811) is provided on the first mounting plate (281), and a mounting groove is provided on the first mounting post (2811). A second mounting post (2821) is provided on the second mounting plate (282). The first mounting post (2811) is sleeved on the outer periphery of the second mounting post (2821) through the mounting groove. The spring (283) is sleeved on the outer peripheries of the first mounting post (2811) and the second mounting post (2821) and abuts between the first mounting plate (281) and the second mounting plate (282). The light-shielding plate (284) and the groove-type photoelectric switch (285) are alternatively provided on the opposite sides of the first mounting plate (281) and the second mounting plate (282), and the light-shielding plate (284) can extend into the detection groove of the groove-type photoelectric switch (285).

2. The closed structure of the cleaning tank according to claim 1, wherein, The guiding member (250) is configured to guide the sealing door (230) to move in a direction parallel to the end face of the cleaning chamber (100).

3. The closed structure of the cleaning tank according to claim 1, characterized in that, When the cleaning chamber (100) is in a negative pressure state, the roller (252) on the sealing door (230) at the first working position is aligned with the avoidance groove (2511), and the roller (252) can move into the avoidance groove (2511).

4. The closed structure of the cleaning tank according to claim 1, characterized in that, The opening direction of the chute (251) is perpendicular to the opening direction of the hatch (110).

5. The closed structure of the cleaning tank according to claim 1, characterized in that The closed structure of the cleaning chamber further includes: Two transmission wheels (261) which are arranged at intervals in a direction parallel to the end face of the cleaning chamber (100); and A transmission belt (262) wound between the two transmission wheels (261), and the sealing door (230) is fixedly connected to the transmission belt (262) through a connecting block (231).

6. The enclosed structure of the cleaning tank according to claim 5, characterized in that, The closed structure of the cleaning chamber further includes a position detection component which is configured to detect the position of the sealing door (230).

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