Water tank water outlet structure of sweeper

Abstract

The water tank water outlet structure of the sweeper comprises a main machine, a water tank assembly and an air pump assembly, and the main machine is provided with a mounting groove with an upper opening; the air pump assembly comprises a pump body and an inserting column, the inserting column is fixedly arranged on a groove bottom plate of the mounting groove, and the pump body communicates with the inserting column; the water tank assembly comprises a normally-closed valve body, a drainage part, an upper tank body and a lower tank body, the lower tank body is provided with an air inlet pipe and a drainage port, the lower end of the air inlet pipe is connected with the insertion column in an inserted mode, the normally-closed valve body is arranged at the upper end of the air inlet pipe, the drainage part is installed at the drainage port, the upper tank body is provided with a water injection port, and the upper tank body is connected with the lower tank body. When the pump body inputs gas into the water tank assembly through the inserting column and the gas inlet pipe, the normally-closed valve body is opened, liquid in the water tank assembly flows out of the drainage part, the pump body stops inputting gas, the normally-closed valve body is closed, and the liquid stops flowing out of the drainage part. The utility model aims to provide a novel structure for controlling the water outlet of the water tank through the air pump.

Description

Technical Field

[0001] The utility model relates to the field of floor sweepers, in particular to a water outlet structure of a water tank of a floor sweeper. Background Art

[0002] In the field of smart home and automatic cleaning, as an important tool to improve the quality of life, the continuous optimization of the design and function of floor sweeping robots has always been the focus of the industry. And with the improvement of floor sweeping robots, more and more floor sweeping robots have both sweeping and mopping functions. The floor sweeping robots with mopping functions are internally provided with detachable water tanks. By controlling the water flow in the water tank to the mop at the bottom of the floor sweeper, the mopping function is realized. There are two common structures for controlling the water outlet of the water tank on the market. One is to pump water from the water tank through a water pump, and the other is to inject air into the water tank through an air pump to increase the internal pressure of the water tank to discharge the water. However, for the air pump scheme, it is necessary to prevent the water in the water tank from flowing back into the air pump, and it is also difficult to design a detachable plug-in structure between the air pump and the water tank. For example, the prior art gives a scheme of connecting the air pump to the top surface of the water tank, but this scheme is likely to pour water into the air pump when the floor sweeper is in a non-horizontal state. At the same time, when the water tank is disassembled, the air pipe needs to be manually pulled out, and when reinstalled, the air pipe needs to be manually installed, which is very inconvenient to use; the prior art also gives a scheme of connecting the air pump to the side wall of the water tank. In this scheme, the air pump is connected through a capillary tube inside the water tank, but the capillary tube is extremely easy to be blocked by water molecules, resulting in poor air outlet. Moreover, for a water tank with vertical disassembly and installation, a sealing structure needs to be provided on the side wall of the water tank and the installation groove of the main body to seal the connection between the air pump and the capillary tube. However, this sealing structure will have relative friction every time the water tank is disassembled, resulting in easy deformation and aging of the sealing structure, thus leading to sealing failure; if a connection valve structure is set between the side wall of the water tank and the installation groove of the main body, it will obviously greatly increase the cost of the product, resulting in insufficient competitiveness of the floor sweeper using the air pump control scheme. Limited by this, the currently mainstream floor sweeping robots on the market adopt the control scheme of pumping water through a water pump. Content of the Utility Model

[0003] The purpose of the utility model is to solve the above technical problems and provide a water outlet structure of a water tank of a floor sweeper. This application aims to provide a new structure for controlling the water outlet of the water tank through an air pump.

[0004] A water tank water outlet structure of a floor sweeper, comprising a main body, a water tank assembly and an air pump assembly. The main body is provided with an installation groove with an upper opening; the air pump assembly includes a pump body and a plug column, the plug column is fixedly arranged on the bottom plate of the installation groove, and the pump body is communicated with the plug column; the water tank assembly includes a normally closed valve body, a drainage member, an upper box body and a lower box body. The lower box body is provided with an air inlet pipe and a drainage port. The lower end of the air inlet pipe is inserted into the plug column, the normally closed valve body is arranged at the upper end of the air inlet pipe, the drainage member is installed at the drainage port, the upper box body is provided with a water injection port, and the upper box body and the lower box body are hermetically connected or welded together, so that the normally closed valve body is pressed between the air inlet pipe and the top wall of the upper box body. When the pump body inputs gas into the water tank assembly through the plug column and the air inlet pipe, the normally closed valve body opens, and the liquid in the water tank assembly flows out through the drainage member. After the pump body stops inputting gas, the normally closed valve body automatically closes, and the liquid stops flowing out through the drainage member.

[0005] According to the water tank water outlet structure of the floor sweeper of the present application, the structure of connecting the upper box body and the lower box body is adopted. When the upper box body and the lower box body are connected, a sealed water tank is formed, and a fixed structure of the normally closed valve body and the air inlet pipe is also formed. When the water tank assembly is filled with water, it is not necessary to worry that water will leak out of the water tank assembly from the air inlet pipe, nor is it necessary to worry that the air inlet pipe will be blocked like a capillary; the water tank assembly is communicated with the air pump assembly through a plug-in structure from top to bottom, which is the same as the installation method of the existing water tank that discharges water through a water pump, and does not need to change the user's usage habits, so that the user will not have any usage obstacles; the cost of controlling the water outlet by using an air pump is relatively lower than that of controlling the water outlet by using a water pump, making the product more competitive in the market.

[0006] Further, the normally closed valve body includes a central column body and an elastic skirt. The upper end of the air inlet pipe is provided with an installation position. The lower end of the central column body is pressed against the bottom surface of the installation position, and a gap is formed between the lower end of the central column body and the bottom surface of the installation position. The elastic skirt is pressed against the side wall of the installation position to keep the normally closed valve body in a normally closed state. The elastic skirt is blown open by gas to open the normally closed valve body. The present application proposes a new valve body structure to cooperate with the air inlet pipe to form a normally closed valve. The central column body is used for clamping and installing the normally closed valve body to prevent the normally closed valve body from disengaging from the air inlet pipe during normal use, resulting in the failure of the normally closed structure. A gap is formed between the central column body and the bottom surface of the installation position to prevent the central column body from sealing the air inlet pipe. The elastic skirt is pressed against the installation position to form a normally closed structure. The elastic skirt can be blown open by the gas blown out by the air pump to generate elastic deformation, so that the normally closed valve body opens, and then the elastic skirt automatically closes after the air pump stops blowing.

[0007] Still further, the bottom surface of the installation position is provided with spaced convex platforms, and the lower end of the central column body is pressed against the convex platforms, and the gap is formed at the interval.

[0008] Furthermore, the side wall of the installation position is provided with an inclined surface, and the opening of the installation position increases in size from bottom to top, and the elastic skirt is in an umbrella shape. Setting the side wall of the installation position as an inclined surface can prevent the side wall from squeezing the elastic skirt excessively, so that the elastic skirt is not easily blown open by the air pump.

[0009] Furthermore, positioning columns are provided on the top wall of the upper box body, and the positioning columns are inserted into the upper end of the central column body for positioning. The positioning columns can prevent the normally closed valve body from detaching from the air inlet pipe during normal use, resulting in the failure of the normally closed structure.

[0010] Furthermore, the drainage member includes a rubber sleeve and a filter cotton core. A sealing groove is provided on the outer wall of the rubber sleeve, and the rubber sleeve is fixedly connected to the lower box body at the drainage port through the sealing groove. An outlet channel communicating with the inside of the water tank assembly is also provided on the rubber sleeve, and the filter cotton core is arranged in the outlet channel. The filter cotton core plays the role of preventing water from flowing out of the water tank naturally and filtering the flowing water. Under the condition that the air pump pressurizes the water tank, water can flow out of the water tank from the filter cotton core, and the rubber sleeve is used to install the filter cotton core on the drainage port.

[0011] Furthermore, a first water outlet is provided on the bottom plate of the installation groove, and a first convex ring extends upward at the first water outlet. The first convex ring presses against the bottom surface of the rubber sleeve, and the outlet channel is hermetically communicated with the first water outlet. The sealing structure formed by the first convex ring can prevent water from leaking into the installation groove from the gap between the installation groove and the water tank assembly.

[0012] Furthermore, it further includes a mounting plate and a mop. The mounting plate is installed on the lower side of the bottom plate of the groove. A second water outlet is provided on the mounting plate, and a third convex ring extends upward at the second water outlet. The bottom plate of the groove extends downward at the first water outlet to form a second convex ring. The third convex ring presses against the bottom plate of the groove, wraps the second convex ring therein, and is spaced from the second convex ring. The mop is installed on the lower side of the mounting plate. The second convex ring can guide the water flow, preventing the water from seeping out along the bottom surface of the main body and not flowing to the mop. The setting of the third convex ring can further guide the water flow. If there is liquid seeping out along the bottom surface of the main body, it can also flow along the third convex ring to the mop.

[0013] Furthermore, the inside of the water tank assembly includes a main water storage cavity and an extension cavity. The extension cavity is a cavity formed by extending the main water storage cavity to the position of the gap above the main body. Drainage ports and drainage members are correspondingly arranged in both the main water storage cavity and the extension cavity. Setting the extension cavity not only makes full use of the installation space provided by the main body for the water tank assembly, but also enables the liquid in the water tank assembly to flow more evenly onto the mop, making the mop more evenly wetted.

[0014] Furthermore, it further includes a handle which is rotatably installed on the water tank assembly. A limiting groove is provided on the side wall of the installation groove. The handle extends outward with a limiting block. The limiting block rotates with the handle. When the handle is retracted into the installation groove, the limiting block rotates into the limiting groove. When the handle is lifted, the limiting block rotates out of the limiting groove. Through the action cooperation between the limiting block and the handle, a limiting structure between the water tank assembly and the installation groove is formed. Brief Description of the Drawings

[0015] Figure 1 It is a cross-sectional view of the floor sweeping robot of the present utility model.

[0016] Figure 2 It is a cross-sectional view of the dust collection box of the present utility model.

[0017] Figure 3 It is a perspective view of the dust collection box of the present utility model.

[0018] Figure 4 It is an exploded view of the dust collection box of the present utility model.

[0019] Figure 5 It is an exploded view of the floor sweeping robot of the present utility model.

[0020] Figure 6 It is an exploded view of the dust collection box of the present utility model.

[0021] Figure 7 It is an exploded view of the floor sweeping robot of the present utility model. Detailed Description of the Preferred Embodiment

[0022] Combined with the drawings, a water tank water outlet structure of a floor sweeping machine of the present utility model is described.

[0023] Such as Figures 1 to 7The water tank outlet structure of a floor sweeper shown, which uses an air pump to control the water outlet of the water tank of the floor sweeper, is a solution that can accurately control the water outlet and has a relatively low cost. Specifically, it includes a main body 1, a water tank assembly 3, and an air pump assembly 2. The main body 1 is provided with an installation groove 11 with an upper opening; the air pump assembly 2 includes a pump body 21 and a plug-in column 22. The plug-in column 22 is fixedly arranged on the bottom plate of the installation groove 11. The pump body 21 is communicated with the plug-in column 22 through an air pipe 23. Such a structure can make the installation method of the water tank in this application the same as that of the existing water tank controlled by a water pump, without changing the user's usage habits and causing no usage obstacles to the user; at the same time, the structure of the water tank assembly 3 is improved to prevent the structure of admitting air from the bottom of the water tank from leaking water and causing the liquid in the water tank assembly 3 to leak into the air pump assembly 2. The water tank assembly 3 includes a normally closed valve body 31, a drainage member 32, an upper box body 33, and a lower box body 34. The lower box body 34 is provided with an air inlet pipe 342 and a drainage port 341. The lower end of the air inlet pipe 342 is inserted into the plug-in column 22, and a sealing ring 321 is sleeved outside the plug-in column 22 to keep the insertion structure between the plug-in column 22 and the lower end of the air inlet pipe 342 sealed. The normally closed valve body 31 is arranged at the upper end of the air inlet pipe 342. The drainage member 32 is installed at the drainage port 341. The upper box body 33 is provided with a water injection port 331, which is convenient for the user to inject water from above. The upper box body 33 and the lower box body 34 are hermetically connected or welded together. Both methods can make the upper box body 33 and the lower box body 34 connected to form a sealed water storage cavity, and at the same time, the normally closed valve body 31 is pressed between the air inlet pipe 342 and the top wall of the upper box body 33, forming the normally closed valve body 31 during the assembly of the water tank assembly 3, avoiding the subsequent installation of the normally closed valve from damaging the integrity and sealing performance of the water tank assembly 3. Moreover, when the water tank assembly 3 of this application is being filled with water, there is no need to worry about water leaking out of the water tank assembly 3 from the air inlet pipe 342, nor about the air inlet pipe 342 being blocked like a capillary tube. When the pump body 21 inputs gas into the water tank assembly 3 through the plug-in column 22 and the air inlet pipe 342, the normally closed valve body 31 opens, and the liquid in the water tank assembly 3 flows out through the drainage member 32. After the pump body 21 stops inputting gas, the normally closed valve body 31 automatically closes, and the liquid stops flowing out through the drainage member 32.

[0024] Such as Figure 2 , Figure 5 and Figure 6As shown in the figure, the present application proposes a new valve body structure to cooperate with the intake pipe 342 to form a normally closed valve. The normally closed valve body 31 includes a central cylinder 311 and an elastic skirt 312. The central cylinder 311 is used for the clamping installation of the normally closed valve body 31. Preferably, the central cylinder 311 and the elastic skirt 312 are integrally formed by a soft sealing material such as rubber or silica gel to form the structure of the normally closed valve body 31. An installation position 3421 is provided at the upper end of the intake pipe 342. The lower end of the central cylinder 311 presses against the bottom surface of the installation position 3421, and a gap is formed between the lower end of the central cylinder 311 and the bottom surface of the installation position 3421. By forming the gap, it is possible to prevent the central cylinder 311 from sealing the intake pipe 342. A positioning post 332 is provided on the top wall of the upper box body 33. The positioning post 332 is inserted into the positioning hole 313 at the upper end of the central cylinder 311 for positioning. By means of the positioning post 332, it is possible to prevent the normally closed valve body 31 from detaching from the intake pipe 342 during normal use, resulting in the failure of the normally closed structure. The elastic skirt 312 presses against the side wall of the installation position 3421 to keep the normally closed valve body 31 in a normally closed state. The elastic skirt 312 is blown open by gas to open the normally closed valve body 31. The elastic skirt 312 presses against the installation position 3421 to form a normally closed structure. The elastic skirt 312 can be blown open by the gas blown out by the air pump to undergo elastic deformation, so as to open the normally closed valve body 31. Then, after the air pump stops blowing, the elastic skirt 312 will automatically close.

[0025] As Figure 2 and Figures 5 to 7 shown, the bottom surface of the installation position 3421 is provided with spaced bosses 34211. The lower end of the central cylinder 311 presses against the bosses 34211, and the gap is formed at the interval.

[0026] As Figure 2 and Figures 5 to 7 shown, the side wall of the installation position 3421 is provided as an inclined surface, and the opening of the installation position 3421 becomes larger from bottom to top. The elastic skirt 312 is in an umbrella shape. By setting the side wall of the installation position 3421 as an inclined surface, it is possible to prevent the side wall from squeezing the elastic skirt 312 excessively, so that the elastic skirt 312 is not easily blown open by the air pump.

[0027] As Figures 2 to 5 shown, the drainage member 32 includes a rubber sleeve 321 and a filter cotton core 322. The rubber sleeve 321 is made of a soft sealing rubber material such as rubber or silica gel. A sealing groove 3211 is provided on the outer wall of the rubber sleeve 321. The rubber sleeve 321 is fixedly connected to the lower box body 34 at the drainage port 341 through the sealing groove 3211. The sealing groove 3211 can prevent the liquid in the water tank assembly 3 from leaking out through the gap between the rubber sleeve 321 and the lower box body 34. An outlet channel communicating with the inside of the water tank assembly 3 is further provided on the rubber sleeve 321. The filter cotton core 322 is arranged in the outlet channel. As Figure 4As described above, the rubber sleeve 321 extends a limiting ring 3212 towards the bottom of the water outlet channel, and the filter cotton core 322 is restricted within the water outlet channel inside the rubber sleeve 321 through the limiting ring 3212.

[0028] As Figure 1 , Figure 3 and Figure 4 As shown, a first water outlet 12 is provided on the bottom plate of the installation groove 11, and a first convex ring 12 extends upward at the first water outlet 12. The first convex ring 12 presses against the bottom surface of the rubber sleeve 321. The water outlet channel is in sealed communication with the first water outlet 12. The sealing structure formed by the first convex ring 12 can prevent water from leaking from the gap between the installation groove 11 and the water tank assembly 3 into the installation groove 11, forcing the liquid in the water tank assembly 3 to flow from the first water outlet 12 to the lower part of the main machine 1.

[0029] As Figure 1 , Figure 3 and Figure 4 As shown, it further includes a mounting plate 4 and a mop 5. The mounting plate 4 is installed on the lower side of the bottom plate of the groove. A second water outlet 41 is provided on the mounting plate 4, and a third convex ring 42 extends upward at the second water outlet 41. The bottom plate of the groove extends a second convex ring 14 downward at the first water outlet 12. The third convex ring 42 presses against the bottom plate of the groove, wraps the second convex ring 14 therein, and is spaced from the second convex ring 14. The mop 5 is installed on the lower side of the mounting plate 4. The second convex ring 14 can guide the water flow, preventing water from seeping along the bottom surface of the main machine 1 and not flowing towards the mop 5. The setting of the third convex ring 42 can further guide the water flow. If there is liquid seeping along the bottom surface of the main machine 1, it can also flow towards the mop 5 along the third convex ring 42.

[0030] As Figure 2 and Figure 3 As shown, the interior of the water tank assembly 3 includes a main water storage cavity 35 and an extension cavity 36. The extension cavity 36 is a cavity formed by the main water storage cavity extending towards the space above the main machine 1. Drainage ports 341 and drainage members 32 are correspondingly provided in both the main water storage cavity 35 and the extension cavity 36. The setting of the extension cavity 36 is used to not only make full use of the installation space provided by the main machine 1 for the water tank assembly 3, but also enable the liquid in the water tank assembly 3 to flow more evenly onto the mop 5, making the mop 5 more evenly wetted. In this application, the water tank assembly 3 and the dust collection box are integrally provided, and the extension cavity 36 extends from the water tank assembly 3 towards the space of the dust collection box, so that the water tank assembly 3 can make more full use of the space of the installation groove 11.

[0031] As Figure 1 and Figure 2As shown, it further includes a handle 6. The handle 6 is rotatably mounted on the water tank assembly 3. A limiting groove 111 is provided on the side wall of the mounting groove 11. The handle 6 extends outwardly with a limiting block 61. The limiting block 61 is an eccentric shaft body extending from the hinge shaft of the handle 6. The limiting block 61 rotates with the handle 6. When the handle 6 is received into the mounting groove 11, the limiting block 61 rotates into the limiting groove 111. When the handle 6 is lifted, the limiting block 61 rotates out of the limiting groove 111. When the user disassembles or installs the water tank assembly 3, a force will be applied through the handle 6 to facilitate the operation. For example, when disassembling, the handle 6 will be rotated first so that the handle 6 can be lifted, and the limiting block 61 also rotates with the handle 6. When the handle 6 rotates to a vertical or nearly vertical position, the limiting block 61 can be rotated out of the limiting groove 111. Conversely, the rotating block is rotated into the limiting groove 111. Through the action linkage between the limiting block 61 and the handle 6, an installation limiting structure for the water tank assembly 3 is formed.

[0032] According to the disclosure and teachings of the above specification, those skilled in the art to which the present utility model pertains can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present utility model should also fall within the protection scope of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims

1. A water tank water outlet structure of a sweeping machine, characterized in that: The evaporator is connected with the air pump via the plug-in post, and the pump body is connected with the plug-in post by the plug-in post.

2. The water tank water outlet structure of the sweeping machine according to claim 1, characterized in that: The normally closed valve body includes a central column and an elastic skirt. A mounting position is provided at the upper end of the air inlet pipe. The lower end of the central column is pressed against the bottom surface of the mounting position and a gap is formed between the lower end of the central column and the bottom surface of the mounting position. The elastic skirt is pressed against the side wall of the mounting position to keep the normally closed valve body in a normally closed state. The elastic skirt is blown open by gas to open the normally closed valve body.

3. The water tank water outlet structure of the sweeping machine according to claim 2, characterized in that: The bottom surface of the installation position is provided with bosses arranged at intervals, and the lower end of the central column is pressed against the bosses to form the gap at the intervals.

4. The water tank water outlet structure of the sweeping machine according to claim 2, characterized in that: The side wall of the installation position is arranged as an inclined surface, and the opening of the installation position increases in size from bottom to top, and the elastic skirt is umbrella-shaped.

5. The water tank water outlet structure of the sweeping machine according to claim 2, characterized in that: A positioning column is arranged on the top wall of the upper box body, and the positioning column is inserted into the upper end of the central column for positioning.

6. The water tank water outlet structure of the sweeping machine according to claim 1, characterized in that: The drainage component includes a rubber sleeve and a filter cotton core. The outer wall of the rubber sleeve is provided with a sealing groove. The rubber sleeve is fixed to the lower box body at the drain outlet through the sealing groove. The rubber sleeve is also provided with a water outlet channel connected to the interior of the water tank assembly. The filter cotton core is arranged in the water outlet channel.

7. The water tank water outlet structure of the sweeping machine according to claim 6, characterized in that: A first water outlet is provided on the bottom plate of the installation groove, and a first convex ring extends upward from the first water outlet. The first convex ring presses against the bottom surface of the rubber sleeve, and the water outlet channel is sealed and connected to the first water outlet.

8. The water tank water outlet structure of the sweeping machine according to claim 7, characterized in that: It also includes a mounting plate and a mop, wherein the mounting plate is mounted on the lower side of the trough bottom plate, a second water outlet is provided on the mounting plate, and a third convex ring extends upward at the second water outlet, a second convex ring extends downward at the first water outlet of the trough bottom plate, the third convex ring presses against the trough bottom plate and wraps the second convex ring therein, and is spaced apart from the second convex ring, and the mop is mounted on the lower side of the mounting plate.

9. The water tank water outlet structure of the sweeping machine according to claim 1, characterized in that: The water tank assembly includes a main water storage cavity and an extension cavity. The extension cavity is a cavity formed by extending the main water storage cavity toward the position of the gap on the main unit. The main water storage cavity and the extension cavity are correspondingly provided with drainage ports and drainage parts.

10. The water tank water outlet structure of the sweeping machine according to claim 1, characterized in that: It also includes a handle, which is rotatably installed on the water tank assembly. A limit groove is provided on the side wall of the installation groove. The handle extends outwardly with a limit block, and the limit block rotates with the handle. When the handle is stored in the installation groove, the limit block rotates into the limit groove. When the handle is lifted, the limit block rotates out of the limit groove.

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