Cleaning device applying uniform water outlet mechanism and cleaning robot thereof

Abstract

The application discloses a cleaning device with a uniform water outlet mechanism and a cleaning robot thereof, and the device comprises a cleaning cover shell which is in a hollow structure and has an inner cavity opening towards the ground; a wiping roller which is rotatably connected in the cleaning cover shell and is used for wiping the ground; and a negative pressure sewage suction pipeline which is used for sucking the sewage generated after the wiping roller wipes the ground and is used for connecting a fan group as a negative pressure power source; wherein the cleaning cover shell is provided with a sewage suction opening which is located at the front / rear side of the wiping roller and extends along the length direction of the wiping roller; and the top of the cleaning cover shell is provided with a uniform water outlet mechanism which is used for connecting a preset clean water tank and the inner cavity of the cleaning cover shell. The application has the effects of guaranteeing the wiping effect on the ground and improving the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to a cleaning robot, in particular to a cleaning device applying a uniform water outlet mechanism and a cleaning robot thereof. BACKGROUND

[0002] With the development of science and technology, people's work and life are becoming more and more convenient, among which the cleaning robot brings the simplification, convenience and high efficiency to the cleaning work, which is particularly close to people's life.

[0003] At present, there is a kind of cleaning robot which integrates the functions of wetting the ground, wiping the ground and collecting sewage; compared with the traditional sweeping robot, the above-mentioned cleaning robot has better cleaning effect on the ground, but the setting of new functions also brings problems such as how to ensure the wiping effect of the ground, so the present application provides a new technical scheme. SUMMARY

[0004] In order to ensure the wiping effect on the ground and improve the user experience, the present application provides a cleaning device applying a uniform water outlet mechanism and a cleaning robot thereof.

[0005] In the first aspect, the present application provides a cleaning device applying a uniform water outlet mechanism, which adopts the following technical scheme:

[0006] A cleaning device applying a uniform water outlet mechanism, comprising:

[0007] A cleaning cover shell which is in a hollow structure and has an inner cavity opening towards the ground;

[0008] A wiping roller which is rotationally connected in the cleaning cover shell and is used for wiping the ground;

[0009] A negative pressure sewage suction pipeline which is used for sucking the sewage generated after the wiping of the wiping roller and is used for connecting a fan group as a negative pressure power source;

[0010] Wherein, the cleaning cover shell is provided with a sewage suction port, and the sewage suction port is located on the front / rear side of the wiping roller and extends along the length direction of the wiping roller;

[0011] The top of the cleaning cover shell is provided with a uniform water outlet mechanism, and the uniform water outlet mechanism is used for connecting a pre-set clean water tank and the inner cavity of the cleaning cover shell.

[0012] Optionally, the uniform water outlet mechanism comprises a water collecting tank, a water tank cover, a water guide partition plate and a water outlet hole;

[0013] The water collecting tank is arranged on the top of the cleaning cover shell and has an upper opening structure; the water tank cover is combined with the water collecting tank and is provided with a water supplement connecting pipe;

[0014] The water diversion partitions are arranged on the water tank cover and / or the tank bottom of the water collecting tank, and are multiple; the multiple water diversion partitions cooperatively separate the inner cavity of the water collecting tank to form several tree-distributed water running channels;

[0015] The water outlet holes are arranged on the water collecting tank and penetrate the inner cavity of the water collecting tank and the cleaning cover; the water outlet holes are multiple and respectively located at the terminal positions of the several tree-distributed water running channels.

[0016] Optionally, the inner wall of the cleaning cover is upwardly protruded to form a roller groove, a side opening is arranged on the side wall of the cleaning cover, the side opening is located at one end of the roller groove, and the side opening is detachably connected to a side roller cover matched therewith; one end of the wiping roller is rotatably connected to the side roller cover, and the other end of the wiping roller is rotatably connected to the inner wall of the cleaning cover, and the upper part of the wiping roller extends into the roller groove.

[0017] Optionally, the side roller cover comprises a limiting plate and a locking plate, the limiting plate blocks the side opening, and a rotating hole matched with the rotating shaft of the wiping roller is arranged on the limiting plate;

[0018] The cleaning cover is arranged on the side of the side opening, and a matching groove matched with the locking plate is arranged on the cleaning cover; the locking plate is arranged on the upper part of the limiting plate, and the matching groove is closed;

[0019] The upper part of the inner wall of the locking plate is provided with a sliding groove, a locking block matched with the sliding groove is slidably connected in the sliding groove, and a side notch through which the locking block can enter and exit is arranged on the inner side of the sliding groove;

[0020] A guide groove is arranged on the top side edge of the cleaning cover, a retreat long hole communicating with the sliding groove is arranged on the groove bottom of the guide groove, and a round protrusion is formed on the groove bottom of the guide groove in the length direction of the retreat long hole; a trigger plate is slidably arranged in the guide groove, and a plurality of positioning grooves matched with the round protrusions are arranged on the bottom of the trigger plate in the length direction;

[0021] A self-recovery unit is fixed on the locking block, the self-recovery unit extends into the retreat long hole, and a telescopic rod is arranged in the self-recovery unit.

[0022] Optionally, the cleaning cover is provided with an empty area on the back of the matching groove, and a side part notch is arranged on the side of the matching groove away from the limiting plate.

[0023] Optionally, the negative pressure sewage suction pipeline comprises an inner box, an intermediate pipe and a fixed pipe;

[0024] The inner box has a hollow structure, and an opening is arranged on the side away from the wiping roller; the wall of the inner box close to the wiping roller is recessed on the side opposite to the back, and an inner pipe is formed on the back, and the front side serves as a sewage suction opening; the inner box is clamped into the cleaning cover, and the inner box is parallel to the wiping roller and abuts against the wall plate of the cleaning cover away from the wiping roller;

[0025] The cleaning cover has a vertical card plate on its inner side, and the inner box has card holes for fitting the card plate.

[0026] The side wall of the cleaning cover extends outward to form an outer tube, which is sleeved on the inner tube.

[0027] The fixed pipe penetrates the clean water tank, and its upper end is used to connect to the sewage tank that collects negative pressure to absorb sewage, while its lower end is connected to the middle pipe.

[0028] One end of the intermediate tube is detachably connected to the fixed tube, and the other end is inserted into the outer tube and abuts against the end of the inner tube.

[0029] Optionally, a tail plate is detachably connected to the lower part of the inner box, and a wiper blade is provided on the side of the tail plate near the wiping roller, the wiper blade extending downward.

[0030] Optionally, a tail plate two is sandwiched between the inner box and the inner wall of the cleaning cover. The tail plate two extends out of the inner box and forms a squeegee two near the side of the wiping roller. The squeegee two abuts against the roller surface of the wiping roller.

[0031] Optionally, the clear water tank for supplying water to the uniform water output mechanism is recessed and has a tank groove and a blower groove; the wastewater tank is placed in the tank groove, and the blower unit is installed in the blower groove.

[0032] The negative pressure suction pipeline also includes a negative pressure connector one and a negative pressure connector two. The negative pressure connector one passes through the wall of the sewage tank and is connected to a fixed pipe at its external end; the negative pressure connector two passes through the other wall of the sewage tank and is connected to a ventilation fan slot at its external end.

[0033] Secondly, this application provides a cleaning robot, which adopts the following technical solution:

[0034] A cleaning robot that uses a cleaning device as described above on a mobile chassis.

[0035] In summary, this application includes at least one of the following beneficial technical effects: the wiping roller can be used to wipe the ground; at the same time, the uniform water outlet mechanism replenishes water to the wiping roller more evenly, making it evenly moist, reducing ineffective dead corners during the wiping process, ensuring the wiping effect on the ground, and improving the user experience. Attached Figure Description

[0036] Figure 1 This is a longitudinal section diagram of the cleaning robot of this application;

[0037] Figure 2 This is a partial explosion diagram of the cleaning device of this application;

[0038] Figure 3This is a partial exploded view of the cleaning device of this application;

[0039] Figure 4 yes Figure 3 Another perspective on the local structural explosion diagram;

[0040] Figure 5 This application is Figure 2 A partial structural diagram after longitudinal sectioning along the inner side of the side roller cover;

[0041] Figure 6 This is a partial explosion diagram of the cleaning casing and inner box of this application;

[0042] Figure 7 yes Figure 1 Enlarged schematic diagram of part A;

[0043] Figure 8 This is a schematic diagram of the structure of the clean water tank and the wastewater tank after separation in this application;

[0044] Figure 9 This application provides a schematic diagram of the sewage tank after longitudinal sectioning along the central axis of the negative pressure inlet pipe.

[0045] Explanation of reference numerals in the attached diagram: 1. Electrical control module; 2. Sweeping module; 3. Mopping module; 4. Mobile chassis; 5. Cleaning cover; 5a. Air duct groove; 511. Roller groove; 512. Side opening; 513. Fitting groove; 513a. Edge notch; 52. Side roller cover; 521. Limiting plate; 522. Locking plate; 522a. Slide groove; 522b. End notch; 522c. Side notch; 522d. Locking block; 53. Motor; 54. Guide groove; 541. Round protrusion; 55. Touch plate; 551. Positioning groove; 56. Self-returning unit; 57. Card plate; 6. Wiping roller; 7. Negative pressure suction pipe; 71. Inner box; 711 712 Inner pipe; 713 Outer pipe; 714 Clip hole; 715 Tail plate one; 716 Pressure plate; 717 Scraper one; 718 Tail plate two; 719 Scraper two; 72 Intermediate pipe; 73 Fixed pipe; 74 Negative pressure connection one; 75 Negative pressure connection two; 8 Uniform water discharge mechanism; 81 Water collection tank; 82 Water tank cover; 821 Connecting arm; 811 Water supply connection; 83 Water inlet baffle; 911 Clean water tank; 912 Tank trough; 913 Fan trough; 914 Platform; 915 Intermediate contact trough; 916 Contact channel; 917 Sealing ring; 918 Screen plate; 919 Wastewater tank; 910 Fan unit. Detailed Implementation

[0046] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0047] It is understandable that the cleaning device with the uniform water output mechanism is ultimately used in the cleaning robot, in conjunction with other functional modules (existing functional modules) of the cleaning robot, such as: electronic control module 1, sweeping module 2, mopping module 3 and mobile chassis 4, to achieve the cleaning function required by the user. Therefore, the following embodiments are described directly from the perspective of the cleaning robot.

[0048] Reference Figure 1 A cleaning robot, in addition to the aforementioned electronic control module 1, sweeping module 2, mopping module 3 and mobile chassis 4, also includes the aforementioned cleaning device, specifically: cleaning cover 5, wiping roller 6, and negative pressure suction pipe 7.

[0049] Regarding the cleaning housing 5, it has a hollow structure and the inner cavity is open to the ground; the aforementioned wiping roller 6 is rotatably connected to the cleaning housing 5, the suction port of the negative pressure suction pipe 7 is also located inside the cleaning housing 5, and the negative pressure suction pipe 7 is connected to the fan unit 93, which serves as a negative pressure source.

[0050] It is understood that the aforementioned cleaning housing 5 can also be used to install, for example, roller brushes and dust collection boxes that work with the roller brushes; since this related structure is not the main content of this application, and is explained in another patent application of the applicant, it will not be described again.

[0051] The cleaning robot is defined as having the cleaning cover 5 facing forward and the mopping module 3 facing backward.

[0052] Reference Figure 2 and Figure 3 The inner wall of the cleaning cover 5 has an upwardly protruding roller groove 511, and a side opening 512 is opened on the side of the cleaning cover 5, located at one end of the roller groove 511. A side roller cover 52 is provided for the side opening 512.

[0053] The wiping roller 6 has a rotating shaft. One end of the rotating shaft is rotatably connected to a pre-drilled hole on the side roller cover 52, and the other end is rotatably connected to the inner side wall of the cleaning cover 5 (or inserted into a power shaft with a linkage power source). The shaft extends into the roller groove 511 to achieve installation.

[0054] Understandably, the wiping roller 6 can wipe the floor by actively rotating, which requires a motor 53 as a power source. The motor 53 can be installed on the upper part of the cleaning housing 5, and it can drive the wiping roller 6 to rotate through gears and a synchronous belt. The wiping roller 6 can be a cloth roller, a sponge roller, etc.

[0055] Since simply wiping the ground with the rotating wiping roller 6 is insufficient to clean dried dirt and may cause dust, this application incorporates a mechanism to wet the ground, which is combined with the action of the wiping roller 6. Specifically, this is achieved by a uniform water dispensing mechanism 8.

[0056] Reference Figure 1 The uniform water output mechanism 8 requires a clean water tank 91 to work with it.

[0057] In this embodiment, the clean water tank 91 is installed on the upper part of the mobile chassis 4, and the top is provided with at least one water inlet and a top cover; the side wall of the clean water tank 91 is provided with a drain hole, and a flexible hose is inserted into the drain hole. The flexible hose is connected to the above-mentioned uniform water outlet mechanism 8 to realize water supply.

[0058] It should be noted that if the drain hole is located near the bottom of the clean water tank 91, the hose can be lowered and a solenoid valve can be installed to supply water; if the drain hole is located near the top of the clean water tank 91, a small water pump can be installed to pump water to the hose section.

[0059] Reference Figure 2 and Figure 3 The uniform water outlet mechanism 8 includes: a water collection tank 81, a water tank cover 82, a water inlet baffle 83, and a water outlet hole.

[0060] The water collection tank 81 has a frame-groove structure, which is embedded in the top of the cleaning cover 5, located directly above the wiping roller 6, and extends along the length of the wiping roller 6. The water collection tank 81 has an upper opening structure, and the water tank cover 82 covers the upper opening of the water collection tank 81.

[0061] The water-guiding baffle 83 can be formed on the bottom of the water collection tank 81 or on the water tank cover 82. In this embodiment, taking the water-guiding baffle 83 formed in both places as an example, it can restrict the water-guiding baffle 83 in both places when the water tank cover 82 is closed, thereby reducing the misalignment and movement of the water tank cover 82.

[0062] A connecting arm 821 extends laterally from the upper part of the water collection tank 81, and the connecting arm 821 is fixed to the top of the cleaning cover 5 by bolts.

[0063] Multiple water supply pipes 811 are formed on the upper part of the water tank cover 82, and the water supply pipes 811 pass through the water tank cover 82; the water supply pipes 811 are used to connect with the above-mentioned hoses to communicate with the clean water tank 91.

[0064] In this application, multiple water-guiding baffles 83 cooperate with each other to divide the inner cavity of the water collection tank 81 into several tree-shaped water channels, thus dividing the water into two, four, or eight portions. Correspondingly, water outlets are opened at the end of each water channel, connecting the inner cavity of the water collection tank 81 and the cleaning cover 5, achieving a uniform water output above the wiping roller 6, evenly wetting the wiping roller, and ensuring its wiping effect.

[0065] It is understandable that the wiping roller 6 needs to be disassembled for cleaning and replacement after a period of use, therefore the following settings are made:

[0066] The side roller cover 52 includes a limiting plate 521 and a locking plate 522. The limiting plate 521 is adapted to and used to block the side opening 512. The limiting plate 521 has a rotating hole adapted to the rotating shaft of the wiping roller 6.

[0067] On the side wall of the cleaning cover 5, a mating groove 513 is provided next to the side opening 512; the locking plate 522 is formed on the upper side of the limiting plate 521, closing the mating groove 513. The locking plate 522 is provided to allow the user to hold the entire side roller cover 52, and to cooperate with other structures to lock it on the cleaning cover 5.

[0068] A groove 522a is formed on the upper part of the inner wall of the locking plate 522. The groove 522a is open and has an end notch 522b at one end away from the wiping roller 6. A side notch 522c is provided on the side of the groove 522a. Both the end notch 522b and the side notch 522c are through structures to the side away from the locking plate 522.

[0069] A locking block 522d is slidably connected in the slide groove 522a. The locking block 522d is T-shaped when viewed from above. The rod end of the T faces the end of the slide groove 522a with an end notch 522b. At least one end of the crossbar of the T extends into the side notch 522c and can be blocked by the groove wall of the slide groove 522a.

[0070] Reference Figure 4 and Figure 5 The top side of the cleaning cover 5 is provided with a guide groove 54. The bottom of the guide groove 54 is provided with a relief elongated hole that connects to the sliding groove 522a. The bottom of the guide groove 54 is formed with a round protrusion 541 extending upward along the length direction of the relief elongated hole. An actuating plate 55 slides inside the guide groove 54. The bottom of the actuating plate 55 has a number of positioning grooves 551 that are adapted to the round protrusion 541 distributed along the length direction.

[0071] A self-resetting unit 56 is fixed to the upper part of the locking block 522d, such as a self-resetting push button switch. When the button is pressed once, it sinks down; when pressed a second time, the button floats up and returns to its original position. The self-resetting unit 56 extends upward into the retraction elongated hole and has a telescopic rod that passes through and is fixed to the touch plate 55.

[0072] When using:

[0073] The side roller cover 52 is fastened to the side of the cleaning cover 5. Pressing the telescopic rod of the self-returning unit 56 causes it to spring up and move the touch plate 55 upwards, releasing the locking of a positioning groove 551 at the bottom of the touch plate 55 from the round protrusion 541. Then, push the touch plate 55 to the side away from the wiping roller 6, causing the T-shaped locking block 522d to insert into the end of the slide groove 522a away from the wiping roller 6. At this time, the side wall of the slide groove 522a restricts the movement of the locking block 522d along the central axis of the wiping roller 6. Pressing the telescopic rod of the self-returning unit 56 again causes the telescopic rod to move the touch plate 55 downwards, locking the positioning groove 551 at the bottom of the touch plate 55 with the round protrusion 541, thus locking and fixing the side roller cover 52. To open, simply reverse the operation.

[0074] To facilitate the removal of the side roller cover 52, the cleaning cover 5 has an empty area on the back of the mating groove 513, and the mating groove 513 has a side notch 513a on the side away from the limiting plate 521. Thus, when removing the side roller cover 52, a finger can be extended from the back of the mating groove 513 toward the side notch 513a to snap off the side roller cover 52.

[0075] Wastewater generated by wiping with the wiping roller 6 needs to be sucked up using the negative pressure suction pipe 7.

[0076] Reference Figure 1 In one embodiment of this application, the negative pressure suction pipe 7 includes: an inner box 71, an intermediate pipe 72, and a fixed pipe 73.

[0077] The inner box 71 has a hollow structure and an opening at the rear. The front wall of the inner box 71 is recessed towards the rear, and an inner tube 711 is formed at the rear, while the front side serves as a suction port. The end of the inner tube 711 away from the front side of the inner box is rectangular.

[0078] Reference Figure 6 The inner box 71 is inserted into the cleaning cover 5, parallel to the wiping roller 6 and fitting against the wall panel of the cleaning cover 5 away from the wiping roller 6; the cleaning cover 5 has an air duct groove 5a recessed outward on the wall panel, and the air duct groove 5a has a rectangular hole. An outer tube 712 is formed on the outside of the wall panel of the cleaning cover 5, and the outer tube 712 is directly opposite the rectangular hole.

[0079] One end of the intermediate tube 72 is inserted into the outer tube 712 and abuts against the outside of the rectangular hole.

[0080] In order to connect the cleaning cover 5 and the inner box 71, a vertical retaining plate 57 is provided inside the cleaning cover and in the air duct groove 5a; a retaining hole 713 adapted to the retaining plate 57 is provided on the inner box 71; when the inner box 71 is installed in place, the retaining plate 57 is inserted into the retaining hole 713 to fix the cleaning cover 5 and the inner box 71.

[0081] Reference Figure 6Multiple clamping plates 57 are distributed along the width of the cleaning housing 5. The clamping plates 57 are also inclined, and in the top view, they are inclined to the left or right of the cleaning housing 5. In this embodiment, it is preferable to use two clamping plates 57 as a group, with one inclined to the left and the other to the right in the same group. Multiple groups of clamping plates 57 are arranged in this way to ensure the installation stability of the cleaning housing 5 and the inner box 71.

[0082] For the dirt generated by the wiping roller 6, in order to detach it from the wiping roller 6 or from the ground and enter the inner box 71, and then be sucked back in, the negative pressure suction required by the above structure alone would be very large, and the suction effect could not be guaranteed. Therefore, this application further:

[0083] The bottom of the inner box 71 has a recessed mounting groove with openings at the front and bottom. A tail plate 714 is installed in the mounting groove, and a pressure plate 715 is installed on the tail plate 714 to abut against it. Bolts are used to fix it to the bottom of the inner box 71. A wiper blade 716 is installed on the side of the tail plate 714 near the wiping roller 6. The wiper blade 716 extends downward, either vertically downward or inclined downward and close to the wiping roller 6.

[0084] Reference Figure 7 Meanwhile, a tail plate 717 is sandwiched between the inner wall of the inner box 71 and the inner wall of the cleaning cover 5. The tail plate 717 extends out of the inner box 71 and forms a wiper blade 718 near the side of the wiping roller 6. The wiper blade 718 abuts against the roller surface of the wiping roller 6.

[0085] According to the above configuration, sewage on the ground is guided to the suction port by the first squeegee 716; sewage on the wiping roller 6 can be scraped off by the second squeegee 718, making it easier to suck it into the suction port.

[0086] Reference Figure 1 The dirt entering the suction port moves toward the intermediate pipe 72. In this embodiment, the intermediate pipe 72 is divided into an arc pipe and straight pipes formed at both ends of the arc pipe. One straight pipe is inserted into the outer pipe 712, the arc pipe is an upward arc, and the other straight pipe is inserted into the lower end of the fixed pipe 73, abutting against the ring platform formed on the inner wall of the lower end of the fixed pipe 73.

[0087] The intermediate tube 72 is a flexible tube, such as a plastic tube; therefore, it can be easily disassembled.

[0088] In one embodiment of this application, the aforementioned fixed pipe 73 is formed in the clean water tank 91 and is vertically arranged. To collect waste moving along the intermediate pipe 72 and the fixed pipe 73, this application utilizes a wastewater tank 92. The upper part of the inner cavity of the wastewater tank 92 is open and covered with a wastewater cover.

[0089] Reference Figure 8 and Figure 9In one embodiment of this application, the clean water tank 91 is recessed to form a tank groove 911 adapted to the sewage tank 92, and a fan groove 912 for placing the fan unit 93 is also recessed; the fan groove 912 is located on the side of the tank groove 911.

[0090] It should be noted that the fan trough 912 is surrounded by the liquid containment chamber of the clean water tank 91.

[0091] Based on the above,

[0092] 1) The clean water tank 91 is not only used to store clean water, but also to install the fan unit 93. With this configuration, the clean water tank 91 can use the stored clean water to reduce the noise generated by the fan unit 93 during operation.

[0093] 2) The clean water tank 91 is also integrated with the sewage tank 92.

[0094] Reference Figure 8 and Figure 9 The aforementioned negative pressure suction pipe 7 also includes negative pressure connector 1 74 and negative pressure connector 2 75.

[0095] At two corners on the same side of the tank 911, a platform 913 is formed by the clear water tank 91 protruding into the tank 911, the height of the platform 913 being less than the depth of the tank 911. The aforementioned fixing pipe 73 is vertical, with its lower end protruding from the bottom of the clear water tank 91 and connecting to the aforementioned intermediate pipe 72, and its upper end passing through the platform 913 to form a sewage tank side connector for connecting to the sewage tank 92.

[0096] To facilitate connection with the sewage tank 92, the side connector of the sewage tank is designed to be conical with the bottom of the cone facing upwards.

[0097] The sewage tank 92 has a partially formed negative pressure pipe 74 on the platform 913, which is inserted downward into the side connector of the sewage tank. A second negative pressure pipe 75 is formed on the side wall of the sewage tank 92 opposite to the first negative pressure pipe 74, and the second negative pressure pipe 75 is connected to the blower trough 912.

[0098] Reference Figure 1 To ensure the sealing between the upper ends of the negative pressure connector 74 and the fixed pipe 73, a sealing ring 1 is fitted and fixed on the lower outer side of the negative pressure connector 74. The sealing ring 1 is columnar and has multiple sealing plates on its outer wall. The multiple sealing plates are set along the height of the sealing ring 1, and the outer side of each sealing plate is raised upward to improve the sealing performance when the negative pressure connector 74 is inserted downward.

[0099] Reference Figure 9 The wastewater tank 92 is not directly connected to the fan duct 912. Due to the aforementioned structure, when the wastewater tank 92 is removed from the duct 911, one channel connecting to the fan duct 912 is open. In this scenario, small debris entering the open opening may move towards the fan duct 912. Therefore:

[0100] A middle contact groove 914 is formed in the clean water tank 91. The middle contact groove 914 is located between the blower trough 912 and the sewage tank 92, and opens on the side facing the blower trough 912.

[0101] A contact channel 915 is provided on the side of the intermediate contact groove 914 away from the blower trough 912. The contact channel 915 is inclined, and the end closer to the sewage tank 92 is positioned higher. A screen plate 916 is fixed in the intermediate contact groove 914 by bolts. The screen plate 916 is a plate structure with multiple holes, which covers the contact channel 915 to prevent dirt from moving towards the blower trough 912 under negative pressure.

[0102] Reference Figure 9 A sealing ring 9151 is provided around the outside of the contact channel 915, and part of the sealing ring 9151 is embedded in the outside of the contact channel 915.

[0103] The negative pressure connecting pipe 2 75 on the sewage tank 92 is recessed at its external port to accommodate the sealing ring 9151. The sealing ring 9151 helps to enhance the sealing performance of the connection between the sewage tank 92 and the intermediate contact groove 914.

[0104] Reference Figure 8 and Figure 9 In one embodiment of this application, in order to make it easier and more convenient to place the sewage tank 92 into the tank groove 911 from top to bottom, the side wall of the sewage tank 92 with the negative pressure pipe 2 75 is recessed, and a notch with a cross-section that gradually increases from top to bottom is formed, with the negative pressure pipe 2 75 located in the notch area.

[0105] According to the above structure, the negative pressure channel corresponding to the negative pressure suction pipe 7 passes through the clean water tank 91 and the sewage tank 92. Most of the suction channel is always surrounded by water, so while the integration is higher, it is also more conducive to reducing the noise generated by the cleaning robot during suction.

[0106] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cleaning device employing a uniform water dispensing mechanism, characterized in that, include: Cleaning cover (5), which has a hollow structure and an inner cavity that opens to the ground; Wiping roller (6) is rotatably connected inside cleaning housing (5) and is used to wipe the ground; The negative pressure suction pipe (7) is used to suck up the dirt generated after the wiping roller (6) wipes the floor, and is also used to connect the fan unit, which is the negative pressure power source. The cleaning cover (5) is provided with a suction port, which is located on the front / rear side of the wiping roller (6) and extends along the length of the wiping roller (6). The top of the cleaning cover (5) is provided with a uniform water outlet mechanism (8), which is used to connect the preset clean water tank (91) and the inner cavity of the cleaning cover (5). The inner wall of the cleaning cover (5) protrudes upward to form a roller groove (511). The side wall of the cleaning cover (5) is provided with a side opening (512). The side opening (512) is located at one end of the roller groove (511) and is detachably connected to a suitable side roller cover (52). One end of the wiping roller (6) is rotatably connected to the side roller cover (52), and the other end is rotatably connected to the inner wall of the cleaning cover (5). The upper part of the wiping roller (6) extends into the roller groove (511). The side roller cover (52) includes a limiting plate (521) and a locking plate (522). The limiting plate (521) blocks the side opening (512) and has a rotating hole adapted to the rotating shaft of the wiping roller (6). The cleaning cover (5) has a mating groove (513) adapted to the locking plate (522) on the side of the side opening (512); the locking plate (522) is provided with the upper plate side of the limiting plate (521) to close the mating groove (513). The upper part of the inner wall of the locking plate (522) is provided with a sliding groove (522a), and a matching locking block (522d) is slidably connected in the sliding groove (522a). The inner side of the sliding groove (522a) is provided with a side notch (522c) for the locking block (522d) to enter and exit. The side notch (522c) has a through structure on the side away from the locking plate (522). The top side of the cleaning cover (5) is provided with a guide groove (54), and the bottom of the guide groove (54) is provided with a retraction elongated hole that connects to the sliding groove (522a). The bottom of the guide groove (54) is formed with a round protrusion (541) upward along the length direction of the retraction elongated hole. A touch plate (55) slides in the guide groove (54), and the bottom of the touch plate (55) is provided with a number of positioning grooves (551) that are adapted to the round protrusion (541) along the length direction. A self-returning unit (56) is fixed on the locking block (522d). The self-returning unit (56) extends into the retraction elongated hole and has a telescopic rod. The telescopic rod passes through and is fixed to the touch plate (55).

2. The cleaning device using a uniform water outlet mechanism according to claim 1, characterized in that: The uniform water outlet mechanism (8) includes a water collection tank (81), a water tank cover (82), a water inlet baffle (83), and a water outlet hole; The water collection tank (81) is located on the top of the cleaning cover (5) and has an open top structure; the water tank cover (82) is closed to the water collection tank (81) and is provided with a water supply pipe (811); The water-guiding baffles (83) are provided at the bottom of the water tank cover (82) and / or the water collection tank (81), and there are multiple baffles (83); the multiple baffles (83) cooperate with each other to separate the inner cavity of the water collection tank (81) to form several tree-shaped water channels. The water outlet is opened in the water collection tank (81) and passes through the inner cavity of the water collection tank (81) and the cleaning cover (5); there are multiple water outlets, and they are located at the end of several tree-shaped water channels.

3. The cleaning device using a uniform water outlet mechanism according to claim 1, characterized in that: The cleaning cover (5) has an empty area on the back of the mating groove (513), and the mating groove (513) has a side notch (513a) on the side away from the limiting plate (521).

4. The cleaning device using a uniform water outlet mechanism according to claim 1, characterized in that: The negative pressure suction pipe (7) includes: an inner box (71), an intermediate pipe (72), and a fixed pipe (73); The inner box (71) has a hollow structure and an opening (512) on the side opposite to the back wiping roller (6); the wall of the inner box (71) near the wiping roller (6) is recessed on the opposite side, and an inner tube (711) is formed at the rear, while the front side serves as a suction port; the inner box (71) is inserted into the cleaning cover (5), parallel to the wiping roller (6) and in contact with the wall panel of the cleaning cover (5) away from the wiping roller (6); The cleaning cover (5) has a vertical card plate (57) on its inner side, and the inner box (71) has a card hole (713) adapted to the card plate (57); The side wall of the cleaning cover (5) extends outward to form an outer tube (712), which is sleeved on the inner tube (711). The fixed pipe (73) penetrates the clean water tank (91), and its upper end is used to connect to the sewage tank (92) for collecting negative pressure to absorb sewage, and its lower end is connected to the intermediate pipe (72); One end of the intermediate tube (72) is detachably connected to the fixed tube (73), and the other end is inserted into the outer tube (712) and abuts against the end of the inner tube (711).

5. The cleaning device using a uniform water outlet mechanism according to claim 4, characterized in that: The lower part of the inner box (71) is detachably connected to a tail plate (714), and a wiper blade (716) is provided on the side of the tail plate (714) near the wiping roller (6), and the wiper blade (716) extends downward.

6. The cleaning device using a uniform water outlet mechanism according to claim 4, characterized in that: A tail plate (717) is held between the inner wall of the inner box (71) and the cleaning cover (5). The tail plate (717) extends out of the inner box (71) and forms a wiper blade (718) near the side of the wiping roller (6). The wiper blade (718) abuts against the roller surface of the wiping roller (6).

7. The cleaning device using a uniform water outlet mechanism according to claim 1, characterized in that: The clean water tank (91) used to supply water to the uniform water outlet mechanism (8) has a recessed groove (911) and a blower groove (912); the wastewater tank (92) is placed in the groove (911) and the blower unit is installed in the blower groove (912); The negative pressure suction pipe (7) also includes a negative pressure connector one (74) and a negative pressure connector two (75). The negative pressure connector one (74) passes through the wall of the sewage tank (92) and is connected to a fixed pipe (73) at its external end. The negative pressure connector two (75) passes through the other wall of the sewage tank (92) and is connected to a ventilation fan slot (912) at its external end.

8. A cleaning robot, characterized in that: The cleaning device as described in any one of claims 1-7 is applied to the mobile chassis (4).

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