CN113915596A - Steam boiler and steam mop with same - Google Patents
Steam boiler and steam mop with same Download PDFInfo
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- CN113915596A CN113915596A CN202111015986.6A CN202111015986A CN113915596A CN 113915596 A CN113915596 A CN 113915596A CN 202111015986 A CN202111015986 A CN 202111015986A CN 113915596 A CN113915596 A CN 113915596A
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- water area
- boiler body
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- hot water
- boiler
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/20—Mops
- A47L13/22—Mops with liquid-feeding devices
- A47L13/225—Steam mops
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Medical Bathing And Washing (AREA)
Abstract
The invention relates to a steam boiler and a steam mop with the same, wherein the steam boiler comprises a boiler body and a water flow adjusting device, wherein a water feeding port and an air outlet are arranged on the boiler body; the boiler body is internally divided into a cold water area and a hot water area, the cold water area is communicated with the water filling port, the hot water area is communicated with the air outlet, and a heating device is arranged in the hot water area; a channel for communicating the cold water area with the hot water area is arranged between the cold water area and the hot water area, and the channel is provided with the water flow adjusting device; according to the internal temperature change of the hot water area, the water flow adjusting device enables the channel to be switched from a sealing state to a fully opening state and vice versa. According to the steam boiler and the steam mop with the steam boiler, the required amount of cold water is automatically provided according to the requirement to form steam for use, all cold water in the boiler does not need to be heated to boiling and vaporizing to provide steam outwards, and energy is saved.
Description
Technical Field
The invention relates to the technical field of steam mops, in particular to a steam boiler and a steam mop with the steam boiler.
Background
The steam mop has the principle that water is heated to generate pressure and high temperature, and high-temperature and high-pressure steam is directly used for disinfection and sterilization to clean the home environment. The steam mop generally has the functions of high-temperature sterilization, oil stain removal and the like. The steam is generated by high pressure, so that the cleaning and sterilization can be realized, and the dirt which is difficult to wind can be easily and loosely treated. No matter oil dirt which is difficult to clear in a kitchen range hood, mold breeding in a wet bathroom, or an automobile engine, an interior decoration and the like, the steam mop can quickly clear the dirt, is time-saving and labor-saving, is economical and practical, does not need to add any cleaning agent, and completely accords with the economic principle.
The steam mop mainly generates high-temperature and high-pressure steam through a steam boiler structure, and the existing steam boiler has the general structure that: generally comprises an upper boiler body, a lower boiler body, a heating pipe and the like. The existing method is that cold water is added once directly in the whole boiler body, and when steam is required to be discharged, the steam can be supplied outwards only when water in the boiler is heated to boiling and vaporization. The waiting time is long after water is added, and the power consumption time is long after one-time heating. The time is wasted seriously, and the energy is not saved.
The foregoing description is provided for general background information and is not admitted to be prior art.
Disclosure of Invention
The invention aims to provide a steam boiler and a steam mop with the steam boiler, wherein the steam boiler can provide required cold water according to needs to form steam for use, and can provide the steam to the outside without heating all cold water in the boiler to boiling and vaporizing, thereby saving energy.
The invention provides a steam boiler which comprises a boiler body and a water flow adjusting device, wherein a water feeding port and an air outlet are formed in the boiler body; the boiler body is internally divided into a cold water area and a hot water area, the cold water area is communicated with the water filling port, the hot water area is communicated with the air outlet, and a heating device is arranged in the hot water area; a channel for communicating the cold water area with the hot water area is arranged between the cold water area and the hot water area, and the channel is provided with the water flow adjusting device; the water flow regulating device switches the channel from a sealing state to a fully open state and vice versa.
Furthermore, a partition board is arranged inside the boiler body, the partition board divides the inside of the boiler body into the cold water area and the hot water area, and a channel communicated with the cold water area and the hot water area is arranged on the partition board.
Furthermore, the cross section of the partition board is generally cylindrical, the partition board comprises a bottom board, a first side board and a second side board, the first side board and the second side board are formed by bending from the bottom board, the bottom board is positioned above the bottom board of the boiler body, and a channel is arranged on the bottom board.
Further, the bottom plate is spaced apart from the bottom plate of the boiler body by a certain distance, and the first side plate and the second side plate are located inside and spaced apart from the side wall of the boiler body by a certain distance.
Further, the water flow adjusting device comprises an upper cover, a blocking cover, a connecting pipe and a second elastic piece; the upper cover is connected with the connecting pipe, an opening is formed in the connection position of the upper cover and the connecting pipe, and the blocking cover is arranged at the opening of the connecting pipe and used for blocking the opening of the connecting pipe; the second elastic component one end with the shutoff lid is connected, the other end with the connecting pipe is connected, the second elastic component is used for providing the shutoff lid is kept away from connecting pipe open-ended power. The connecting pipe is connected with the channel, the opening at the joint of the upper cover and the connecting pipe is positioned in the cold water area, and the bottom end of the connecting pipe is positioned in the hot water area.
Furthermore, the water flow adjusting device further comprises a first elastic piece, one end of the first elastic piece is connected with the upper cover, the other end of the first elastic piece is connected with the blocking cover, and the first elastic piece is used for providing a force for pressing the blocking cover to the opening of the connecting pipe.
Furthermore, the whole plugging cover is in a cross shape, one end of the plugging cover is provided with a first connecting column, and the other end of the plugging cover is provided with a second connecting column; the second elastic piece is a spiral spring, one end of the spiral spring is sleeved on the first connecting column, and the other end of the spiral spring abuts against the inner wall of the upper cover; the first elastic part is a thermosensitive spiral spring made of thermosensitive materials, one end of the thermosensitive spiral spring is sleeved on the second connecting column, and the other end of the thermosensitive spiral spring abuts against the inner wall of the connecting pipe.
Further, the channel on the partition is adjacent to the heating device.
Furthermore, the boiler body comprises an upper boiler body and a lower boiler body, and the lower end opening of the upper boiler body is hermetically connected with the upper end opening of the lower boiler body; the water filling port and the air outlet are arranged on the upper boiler body, and the heating device is arranged on the lower boiler body.
The invention also provides a steam mop, which comprises the steam boiler.
In the steam boiler and the steam mop provided by the invention, under the control of the water flow regulating device, the opening of the channel is continuously circulated from the maximum to the maximum from the maximum to the seal, and cold water is automatically controlled to enter a hot water area for heating to form steam; the required amount of cold water is automatically provided according to the requirement to form steam for use, and the steam can be provided outwards without heating all cold water in the boiler to boiling and vaporizing, so that the energy is saved.
Drawings
Fig. 1 is a schematic cross-sectional view of a steam boiler according to an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of a boiler body of the steam boiler of FIG. 1.
FIG. 3 is a schematic cross-sectional view illustrating a water flow regulating device of the steam boiler of FIG. 1.
FIG. 4 is a schematic cross-sectional view of the water flow regulating device of the steam boiler of FIG. 1 when closed.
FIG. 5 is a schematic cross-sectional view of the steam boiler of FIG. 1 with the water flow regulating device open.
The reference numerals and components referred to in the drawings are as follows:
1. boiler body
11. Water filling opening
12. Air outlet
13. Cold water region
14. Hot water zone
15. Heating device
16. Channel
17. Partition board
171. Base plate
172. First side plate
173. Second side plate
18. Upper boiler body
19. Lower boiler body
2. Water flow adjusting device
21. Upper cover
22. Opening of the container
23. Plugging cover
24. First connecting post
25. Second connecting column
26. Connecting pipe
27. First elastic member
28. Second elastic member
3. Sealing ring
4. Cold water
5. Steam generating device
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The terms first, second, third, fourth and the like in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Fig. 1 is a schematic cross-sectional structure view of a steam boiler according to an embodiment of the present invention, and fig. 2 is a schematic cross-sectional structure view of a boiler body of the steam boiler in fig. 1. The steam boiler provided by the embodiment of the invention comprises a boiler body 1 and a water flow adjusting device 2, wherein a water filling port 11 and an air outlet 12 are arranged on the boiler body 1; the interior of the boiler body 1 is divided into a cold water area 13 and a hot water area 14, the cold water area 13 is communicated with a water filling port 11, the hot water area 14 is communicated with an air outlet 12, and a heating device 15 is arranged in the hot water area 14; specifically, the heating device 15 may be a heating pipe; a channel 16 for communicating the cold water region 13 with the hot water region 14 is arranged between the cold water region 13 and the hot water region 14, and a water flow adjusting device 2 is arranged on the channel 16; the water flow regulating device 2 switches the passage 16 between the sealed state to the open state in accordance with a temperature change inside the hot water region 14.
FIG. 4 is a schematic cross-sectional view illustrating a water flow regulating device of the steam boiler of FIG. 1 closed, and FIG. 5 is a schematic cross-sectional view illustrating a water flow regulating device of the steam boiler of FIG. 1 opened. Referring to fig. 4 and 5, when a user adds cold water 4 into the cold water region 13 through the water inlet 11, the temperature in the hot water region 14 is low, and the channel 16 is in a sealed state; at the moment, the heating device 15 starts to heat, and because the hot water area 14 is not provided with the cold water 4 and the hot water area 14 is provided with less water, the hot water area 14 is heated to a certain temperature quickly, at the moment, the temperature in the hot water area 14 is continuously increased under the continuous heating of the heating device 15, and the control channel 16 is gradually opened from a sealing state to a maximum opening state under the continuous temperature increase of the water flow regulating device 2 in the hot water area 14; when the channel 16 is opened, the cold water 4 in the cold water area 13 enters the hot water area 14 from the channel 16 and is scattered on the boiler surface of the heated hot water area 14, the steam is rapidly vaporized, and the formed steam 5 can be sprayed out from the air outlet 12; after the cold water 4 enters the hot water area 14, the temperature inside the hot water area 14 gradually decreases, and the water flow regulating device 2 controls the channel 16 to gradually decrease from the maximum opening state until the opening of the channel 16 is closed.
Under the control of the water flow adjusting device 2, the opening of the channel 16 is continuously circulated from the maximum to the maximum from the sealing, and the cold water 4 is automatically controlled to enter the hot water area 14 to be heated to form steam. The required amount of the cold water 4 is automatically provided according to the requirement to form steam for use, and the steam can be provided outwards without heating all the cold water 4 in the boiler to boiling and vaporizing, thereby saving energy.
As shown in fig. 2, a partition 17 is provided inside the boiler body 1, the partition 17 divides the inside of the boiler body 1 into a cold water region 13 and a hot water region 14, and a passage 16 communicating the cold water region 13 and the hot water region 14 is provided in the partition 17, so that the cold water 4 in the cold water region 13 flows into the hot water region 14 through the passage 16. The partition 17 may be made of a heat insulating material, and the partition 17 made of the heat insulating material prevents heat conduction between the cold water region 13 and the hot water region 14, thereby reducing energy loss and saving energy.
Specifically, the partition 17 has a substantially cylindrical cross section, the partition 17 includes a bottom plate 171, and a first side plate 172 and a second side plate 173 bent from the bottom plate 171, the bottom plate 171 is located above the bottom plate of the boiler body 1, and the bottom plate 171 is provided with the channel 16. The bottom plate 171 is spaced apart from the bottom plate of the boiler body 1, and the first and second side plates 172 and 173 are located inside the side walls of the boiler body 1 and spaced apart from the side walls of the boiler body 1.
It should be noted that, due to the design that the water filling port 11 and the air outlet 12 on the boiler body 1 are positioned on the same side, the winding of the internal pipeline of the steam mop is not needed, and the internal pipeline is convenient to arrange; therefore, the partition 17 having a substantially cylindrical cross section allows the filler 11 and the outlet 12 to be located on the same side, and also allows the cold water region 13 and the hot water region 14 to be partitioned.
FIG. 3 is a schematic cross-sectional view illustrating a water flow regulating device of the steam boiler of FIG. 1. Referring to fig. 3, the water flow adjusting device 2 according to the embodiment of the present invention includes an upper cover 21, a blocking cover 23, a connecting pipe 26, and a second elastic member 28, wherein the second elastic member 28 is made of a thermosensitive material; the upper cover 21 is connected with the connecting pipe 26, an opening 22 is arranged at the connection position of the upper cover 21 and the connecting pipe 26, and the blocking cover 23 is arranged at the opening of the connecting pipe 26 and used for blocking the opening of the connecting pipe 26; the second elastic member 28 has one end connected to the blocking cap 23 and the other end connected to the connection pipe 26, and the second elastic member 28 is used to provide a force for moving the blocking cap 23 away from the opening of the connection pipe 26. The connecting pipe 26 is connected with the channel 16, the opening 22 at the connection of the upper cover 21 and the connecting pipe 26 is positioned in the cold water area 13, and the bottom end of the connecting pipe 26 is positioned in the hot water area 14. The water flow adjusting device 2 further comprises a first elastic member 27, one end of the first elastic member 27 is connected with the upper cover 21, and the other end is connected with the blocking cover 23, and the first elastic member 27 is used for providing a force for pressing the blocking cover 23 against the opening of the connecting pipe 26.
Specifically, the upper cover 21 and the connection pipe 26 may be one body, which is fixed with respect to the partition 17. It is understood that the first elastic member 27 may be omitted and the blocking cover 23 is moved downward by the gravity of the blocking cover 23 to close the opening of the connection pipe 26 when the temperature is lowered.
Under the heating of the heating device 15, the temperature in the hot water region 14 gradually increases, the second elastic member 28 stretches after being heated, the elastic force provided to the blocking cover 23 gradually increases, when the temperature in the hot water region 14 reaches the temperature at which the cold water 4 can be vaporized, the elastic force of the second elastic member 28 is greater than the sum of the elastic force of the first elastic member 27 and the gravity of the blocking cover 23, the second elastic member 28 pushes the blocking cover 23 away from the opening of the connecting pipe 26, at this time, the cold water 4 flows into the hot water region 14 from the opening 22 at the connection between the upper cover 21 and the connecting pipe 26 through the connecting pipe 26 and is scattered on the heated boiler surface to be rapidly vaporized, when the cold water 4 passes through the surface of the second elastic member 28, the second elastic member 28 starts to cool, the elastic force gradually decreases, at this time, the elastic force of the second elastic member 28 is less than the sum of the elastic force of the first elastic member 27 and the gravity of the blocking cover 23, under the elastic force of the first elastic member 27, the blocking cover 23 gradually presses down the opening of the connection tube 26 until the opening of the connection tube 26 is closed.
It should be noted that the first elastic member 27 for providing the force for pressing the blocking cover 23 against the opening of the connecting pipe 26 can make the temperature in the hot water region 14 reach a certain temperature to make the cold water 4 flow into the hot water region 14. Thereby ensuring that the cold water 4 flowing into the hot water zone 14 is not so excessive as to overcool and neutralize the existing hot water and fail to reach the vaporization temperature. In the normal temperature state, the elastic force of the first elastic member 27 is greater than the elastic force of the second elastic member 28, so that the blocking cover 23 is pressed against the opening of the connection pipe 26.
As shown in fig. 1 and 2, the connecting pipe 26 is connected to the channel 16, the notch 22 of the upper cover 21 is located in the cold water region 13, and the bottom end of the connecting pipe 26 is located in the hot water region 14.
As shown in fig. 3, the blocking cover 23 is in a cross shape as a whole, and a first connecting column 24 is arranged at one end of the blocking cover 23, and a second connecting column 25 is arranged at the other end; the elastic element 27 is a spiral spring, one end of the spiral spring is sleeved on the first connecting column 24, and the other end of the spiral spring is propped against the inner wall of the upper cover 21; one end of the heat-sensitive spring 28 is sleeved on the second connecting pole 25, and the other end is propped against the inner wall of the connecting pipe 26.
It is understood that the water flow regulating device 2 may be other structural devices, such as an electric control valve, and specifically, when the temperature in the hot water region 14 reaches a certain temperature, an electric signal is input to the electric control valve to control the electric control valve to open, so that the cold water 4 in the cooling region 13 enters the hot water region 14, and at this time, the temperature in the hot water region 14 decreases again, and then an electric signal is input to the electric control valve to control the electric control valve to close.
As shown in fig. 1 and 2, the passage 16 of the partition 17 is close to the heating device 15. Thereby bringing the water flow regulating device 2 mounted on the passage 16 closer to the heating device 15, thereby better sensing the temperature change inside the hot water zone 14 and increasing the sensitivity of the water flow regulating device 2.
As shown in fig. 1, the boiler body 1 comprises an upper boiler body 18 and a lower boiler body 19, wherein the lower end opening of the upper boiler body 18 is hermetically connected with the upper end opening of the lower boiler body 19; the water adding port 11 and the air outlet 12 are arranged on the upper boiler body 18, so that the water adding port 11 and the air outlet 12 are positioned on the same side, the winding of an internal pipeline of the steam mop is not needed, and the arrangement of the internal pipeline is convenient; the heating device 15 is provided on the lower boiler body 19. The joint of the upper boiler body 18 and the lower boiler body 19 is provided with a sealing ring 3. For maintaining the air tightness of the joint of the upper boiler body 18 and the lower boiler body 19.
As shown in fig. 2, a flange is disposed on an edge of the first side plate 172 of the partition 17, and the flange is interposed between the upper boiler body 18 and the lower boiler body 19 to further fix the partition 17 and prevent the partition 17 from moving inside the boiler body 1. The second side plate 173 top portion of the partition 17 extends to the top of the upper boiler body 18 so as to communicate the hot water region 14 with the air outlet 12.
Based on the above description, the present invention has the following advantages:
1. the invention provides a steam boiler, under the control of a water flow adjusting device 2, the opening of a channel 16 is continuously circulated from the maximum to the maximum from the maximum to the seal, and cold water 4 is automatically controlled to enter a hot water area 14 to be heated to form steam. The required amount of the cold water 4 is automatically provided according to the requirement to form steam for use, and the steam can be provided outwards without heating all the cold water 4 in the boiler to boiling and vaporizing, thereby saving energy.
The embodiment of the invention also provides the steam mop, which comprises the steam boiler.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A steam boiler, characterized in that: the boiler comprises a boiler body (1) and a water flow adjusting device (2), wherein a water filling port (11) and an air outlet (12) are formed in the boiler body (1); the boiler body (1) is internally divided into a cold water area (13) and a hot water area (14), the cold water area (13) is communicated with the water filling port (11), the hot water area (14) is communicated with the air outlet (12), and a heating device (15) is installed in the hot water area (14);
a channel (16) for communicating the cold water area (13) with the hot water area (14) is arranged between the cold water area (13) and the hot water area (14), and the channel (16) is provided with the water flow adjusting device (2); the water flow regulating device (2) switches the passage (16) between a sealed state and an open state.
2. A steam boiler according to claim 1, characterized in that: the water flow adjusting device (2) is used for opening or sealing the channel (16) according to the temperature change in the hot water area (14).
3. A steam boiler according to claim 1, characterized in that: the boiler body (1) is provided with a partition board (17) inside, the partition board (17) divides the boiler body (1) inside into a cold water area (13) and a hot water area (14), and the partition board (17) is provided with a channel (16) for communicating the cold water area (13) with the hot water area (14).
4. A steam boiler according to claim 3, characterized in that: the cross section of the partition plate (17) is generally cylindrical, the partition plate (17) comprises a bottom plate (171), a first side plate (172) and a second side plate (173) which are formed by bending from the bottom plate (171), the bottom plate (171) is positioned above the bottom plate of the boiler body (1), and the channel (16) is arranged on the bottom plate (171).
5. A steam boiler according to claim 4, characterized in that: the bottom plate (171) is spaced from the bottom plate of the boiler body (1) by a certain distance, and the first side plate (172) and the second side plate (173) are located on the inner side of the side wall of the boiler body (1) and spaced from the side wall of the boiler body (1) by a certain distance.
6. A steam boiler according to claim 1, characterized in that: the water flow adjusting device (2) comprises an upper cover (21), a blocking cover (23), a connecting pipe (26) and a second elastic piece (28); the upper cover (21) is connected with the connecting pipe (26), an opening (22) is formed in the connection position of the upper cover (21) and the connecting pipe (26), and the blocking cover (23) is arranged at the opening of the connecting pipe (26) and used for blocking the opening of the connecting pipe (26);
one end of the second elastic piece (28) is connected with the blocking cover (23), the other end of the second elastic piece is connected with the connecting pipe (26), and the second elastic piece (28) is used for providing a force for keeping the blocking cover (23) away from the opening of the connecting pipe (26).
The connecting pipe (26) is connected with the channel (16), the opening (22) at the joint of the upper cover (21) and the connecting pipe (26) is positioned in the cold water area (13), and the bottom end of the connecting pipe (26) is positioned in the hot water area (14).
7. A steam boiler according to claim 6, characterized in that: the water flow adjusting device (2) further comprises a first elastic piece (27), one end of the first elastic piece (27) is connected with the upper cover (21), the other end of the first elastic piece is connected with the blocking cover (23), and the first elastic piece (27) is used for providing a force for pressing the blocking cover (23) to compress the opening of the connecting pipe (26).
8. A steam boiler according to claim 7, characterized in that: the blocking cover (23) is integrally in a cross shape, one end of the blocking cover (23) is provided with a first connecting column (24), and the other end of the blocking cover is provided with a second connecting column (25); the second elastic piece (28) is a spiral spring, one end of the spiral spring is sleeved on the first connecting column (24), and the other end of the spiral spring is propped against the inner wall of the upper cover (21); the first elastic part (27) is a thermosensitive spiral spring made of thermosensitive materials, one end of the thermosensitive spiral spring is sleeved on the second connecting column (25), and the other end of the thermosensitive spiral spring is propped against the inner wall of the connecting tube (26).
9. A steam boiler according to claim 1, characterized in that: the boiler body (1) comprises an upper boiler body (18) and a lower boiler body (19), and the lower end opening of the upper boiler body (18) is hermetically connected with the upper end opening of the lower boiler body (19); the water filling port (11) and the air outlet (12) are arranged on the upper boiler body (18), and the heating device (15) is arranged on the lower boiler body (19).
10. A steam mop is characterized in that: a steam boiler comprising any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111015986.6A CN113915596A (en) | 2021-08-31 | 2021-08-31 | Steam boiler and steam mop with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111015986.6A CN113915596A (en) | 2021-08-31 | 2021-08-31 | Steam boiler and steam mop with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113915596A true CN113915596A (en) | 2022-01-11 |
Family
ID=79233542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111015986.6A Pending CN113915596A (en) | 2021-08-31 | 2021-08-31 | Steam boiler and steam mop with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113915596A (en) |
-
2021
- 2021-08-31 CN CN202111015986.6A patent/CN113915596A/en active Pending
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