CN221060576U - Surface cleaning device capable of cleaning by steam - Google Patents

Abstract

The utility model discloses a surface cleaning device capable of cleaning steam, which belongs to the technical field of cleaning equipment and comprises a cleaning piece, a clean water tank and a steam generating device communicated with the clean water tank, wherein the steam generating device comprises a preheating cavity with a fluid inlet and a vaporizing cavity for heating fluid to generate steam, the preheating cavity is positioned below the vaporizing cavity and is longitudinally communicated with the vaporizing cavity through a first communication port, and the cross section area S1 of the fluid inlet is smaller than the cross section area S2 of the first communication port so that fluid can smoothly flow into the vaporizing cavity from the preheating cavity. The size relation between the sectional area S1 of the fluid inlet and the sectional area S2 of the first communication port is reasonably set, so that liquid flowing into the preheating cavity can flow into the vaporization cavity quickly and sufficiently after being fully heated, and therefore, enough high-temperature liquid in the vaporization cavity can be vaporized quickly after being heated, the vaporization rate in the vaporization cavity is improved, and saturated steam can be stably generated in the vaporization cavity.

Description

Surface cleaning device capable of cleaning by steam

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a surface cleaning device capable of cleaning a surface by steam.

Background

Because high-temperature steam has the characteristics of better stain softening, sterilization, disinfection and the like, the conventional household floor washing machine has the conventional water washing function, the steam supply function is also overlapped, the stubborn stains on the ground can be softened by utilizing steam, the roller brush or the ground can be sterilized, the cleaning force of the floor washing machine on the ground is improved, and the use experience of a user is improved. In order to obtain steam, the existing floor washing machine is provided with a heating device which heats the introduced liquid to generate steam, and then outputs the steam to the floor or the roller brush through a pipe. The existing heating device generally has two chambers, and the liquid generates steam after being heated twice. However, the existing heating device applied to the floor washing machine has the defects of low steam temperature and large temperature loss in the process of spraying the steam to the ground, and has an unsatisfactory softening effect on stubborn stains. In addition, the existing heating device applied to the floor washing machine has the defect that steam is unstable, the spraying amount of the steam is large and small, and the sprayed steam is easy to mix with liquid, so that the cleaning requirement is not met.

Disclosure of utility model

In order to solve the defects and shortcomings in the prior art, the utility model provides a surface cleaning device capable of cleaning steam, and the size relation between the sectional area S1 of a fluid inlet and the sectional area S2 of a first communication port is reasonably set, so that liquid flowing into a preheating cavity can flow into a vaporizing cavity quickly and sufficiently after being fully heated, and therefore, enough high-temperature liquid in the vaporizing cavity can be vaporized quickly after being heated, the vaporization rate in the vaporizing cavity is improved, and saturated steam can be stably generated in the vaporizing cavity.

In order to achieve the above technical purpose, the surface cleaning device capable of being cleaned by steam provided by the utility model comprises a cleaning piece, a clean water tank and a steam generating device communicated with the clean water tank, wherein the steam generating device comprises a preheating cavity with a fluid inlet and a vaporizing cavity for heating fluid to generate steam, the preheating cavity is positioned below the vaporizing cavity and is longitudinally communicated with the vaporizing cavity through a first communication port, and the cross section area S1 of the fluid inlet is smaller than the cross section area S2 of the first communication port, so that fluid can smoothly flow into the vaporizing cavity from the preheating cavity.

Preferably, the flow rate of the fluid inlet is Q, Q is more than or equal to 20mL/min and less than or equal to 30mL/min, and S1/S2 is more than or equal to 0.2 and less than or equal to 0.4.

Preferably, the steam generating device further comprises a steam heating cavity which is used for heating steam and is provided with a fluid outlet, the steam heating cavity is arranged above the vaporization cavity and is longitudinally communicated with the vaporization cavity through a second communication port, the cross section area of the second communication port is S3, and S3/S2 is less than or equal to 2 and less than or equal to 3.

Preferably, the cross-sectional area of the fluid outlet is S4, and S4/S3 is more than or equal to 0.1 and less than or equal to 0.3.

Preferably, the volume of the preheating cavity is V1, and the volume of the vaporization cavity is V2, wherein V1/V2 is more than or equal to 0.4 and less than or equal to 0.6.

Preferably, the steam generating device is provided with a heat conducting plate for separating the preheating cavity and the vaporizing cavity, and the first communication port is arranged on the heat conducting plate.

Preferably, the first heating body for simultaneously heating the preheating cavity and the vaporizing cavity is embedded in the heat conducting plate, the height of the preheating cavity is H1, the height of the vaporizing cavity is H2, the height of the first heating body extending into the preheating cavity is H3, the height of the first heating body extending into the vaporizing cavity is H4, H2/H1 is more than or equal to 1.5 and less than or equal to 3,1.5 and less than or equal to H4/H3 and less than or equal to 2.

Preferably, the heat conducting plate is provided with a preheating heating body for heating the preheating cavity and a vaporization heating body for heating the vaporization cavity, and the preheating heating body is positioned below the vaporization heating body.

Preferably, the lower part of the vaporization cavity is provided with a liquid guide plate, the height of the liquid guide plate is smaller than that of the vaporization cavity so as to divide the vaporization cavity into a liquid flow passage positioned at the lower part and a steam flow passage positioned at the upper part, the height of the liquid flow passage is H5, and the height of the steam flow passage is H6, and H5/H6 is more than or equal to 1.5 and less than or equal to 2.5.

Preferably, the steam generating device comprises a middle shell, a lower cover fixed at the bottom of the middle shell, an upper cover fixed at the top of the middle shell, and a partition plate arranged between the top side of the middle shell and the upper cover, wherein the preheating cavity is formed by enclosing the lower part of the middle shell and the lower cover, the vaporizing cavity is formed by enclosing the upper part of the middle shell and the partition plate, the steam heating cavity is formed by enclosing the partition plate and the upper cover, the first communication port and the second communication port are respectively positioned at two ends of the length direction of the middle shell, and the second communication port is arranged on the partition plate or formed by a gap between the partition plate and the inner wall of the middle shell.

After the technical scheme is adopted, the utility model has the following advantages:

1. According to the surface cleaning device provided by the utility model, the vaporization cavity and the preheating cavity are vertically distributed and longitudinally communicated through the first communication port, the preheating cavity heats Cheng Gaowen liquid flowing in through the fluid inlet and then flows into the vaporization cavity through the first communication port, the vaporization cavity further heats the high-temperature liquid to generate saturated steam, and the preheating cavity has higher heating efficiency on the liquid because the sectional area S1 of the fluid inlet is smaller than the sectional area S2 of the first communication port, so that the liquid flowing into the preheating cavity flows into the vaporization cavity through the first communication port quickly and sufficiently after being fully heated, thereby ensuring that the vaporization cavity has enough high-temperature liquid which can be heated to form saturated steam, improving the vaporization rate of the vaporization cavity, ensuring that the vaporization cavity can stably generate saturated steam, improving the stability of steam supply and avoiding the condition of large time or liquid inclusion when the steam is sprayed. The distribution relation of the preheating cavity and the vaporization cavity is reasonably arranged, the distance between the two cavities is shortened, the smoothness of the high-temperature liquid flowing from the preheating cavity to the vaporization cavity is improved, and the stability of steam supply is improved.

2. The ratio of the flow Q of the fluid inlet to the flow S1/S2 is reasonably set, so that normal-temperature liquid flowing into the preheating cavity through the fluid inlet can be heated to a certain temperature quickly and continuously, the phenomenon that more scale is generated in the preheating cavity while the liquid is directly heated into steam in the preheating cavity is avoided, meanwhile, the liquid flowing into the vaporizing cavity through the first communication port is guaranteed to have a higher temperature, the high-temperature liquid can be vaporized quickly in the vaporizing cavity, and the steam generating device can be guaranteed to supply steam stably.

If Q is smaller than 20mL/min or S1/S2 is smaller than 0.2, the volume of the liquid flowing into the preheating cavity through the fluid inlet is smaller, and the liquid is easily heated and vaporized directly in the preheating cavity. If Q is greater than 30mL/min or S1/S2 is greater than 0.4, the volume of the liquid flowing into the preheating cavity through the fluid inlet is larger, and more scale is easily generated when the liquid is heated in the preheating cavity.

3. Because steam is lighter and can upwards flow, steam generating device sets up the steam heating chamber that is located vaporization chamber top, the saturated steam that vaporization intracavity produced upwards flows into the steam heating intracavity through the second intercommunication mouth, steam heating chamber is further heated to saturated steam and is formed superheated steam, superheated steam exports through the fluid export, rationally arrange steam heating chamber and vaporization chamber's distribution relation, improve the smoothness of steam flow from vaporization chamber to steam heating chamber when shortening the distance between two cavities, can improve the atmospheric pressure in the steam heating chamber, be favorable to improving the velocity of flow and the pressure of superheated steam that flows through the fluid export, thereby rationally reduce the temperature loss of steam in the flow process, guarantee the steam temperature of flow direction ground or cleaning member, improve the softening effect of steam to the intractable spot and to the disinfection ability of disinfecting of cleaning member. The secondary heating of the steam through the steam heating cavity can improve the temperature of the steam output by the steam generating device, avoid the output steam to be mixed with liquid, and enable the output steam to better meet the use requirement.

The ratio between the sectional area S3 of the second communication port and the sectional area S2 of the first communication port is reasonably set, so that the supply efficiency of the superheated steam is ensured. If S3/S2 is less than 2, the sectional area S3 of the second communication port is smaller, saturated steam generated in the vaporization cavity cannot flow into the steam heating cavity rapidly through the second communication port, and the efficiency of heating the saturated steam by the steam heating cavity to generate superheated steam is not guaranteed. If S3/S2 is greater than 3, the sectional area S2 of the first communication port is smaller, and the high-temperature liquid flowing into the vaporization cavity through the first communication port is less, so that the efficiency of heating the high-temperature liquid by the vaporization cavity to generate saturated steam is not guaranteed.

4. The ratio of the sectional area S4 of the fluid outlet to the second communication port S3 is reasonably set, so that the flow speed and the pressure of steam flowing out through the fluid outlet are improved, and the condition that the steam heating cavity is subjected to self-explosion due to overlarge air pressure is avoided. If S4/S3 is smaller than 0.1, the fluid outlet is too small, superheated steam in the steam heating cavity cannot be timely output through the fluid outlet, and the steam heating cavity can be subjected to self-explosion due to overlarge air pressure, so that stability of the steam generating device is not guaranteed. If S4/S3 is larger than 0.4, the fluid outlet is too large, so that the flow speed and the pressure of steam flowing out through the fluid outlet are not guaranteed, and the softening effect of the steam on stubborn stains is not guaranteed.

5. The ratio of the volume V1 of the preheating cavity to the volume V2 of the vaporizing cavity is reasonably set, so that the vaporizing cavity can provide sufficient steam for the steam heating cavity. If V1/V2 is smaller than 0.4, the volume of the preheating cavity is too small, liquid is easy to vaporize in the preheating cavity too early, and the heat loss is more, so that the reasonable control of heating energy consumption is not facilitated. If V1/V2 is larger than 0.6, the volume of the preheating cavity is too large, the temperature of the liquid heated by the preheating cavity cannot meet the requirement, the steam quantity generated by heating the preheated liquid in the vaporization cavity is not guaranteed, the flow speed and the pressure of the superheated steam flowing out through the fluid outlet are not guaranteed, and more scale is easily generated in the preheating cavity.

6. The preheating cavity and the vaporizing cavity are separated by the heat conducting plate, the first communication port is arranged on the heat conducting plate, and the forming modes of the preheating cavity, the vaporizing cavity and the first communication port are reasonably arranged, so that the internal structure of the steam generating device is reasonably simplified. Because mineral substances in the liquid are easy to deposit and form scale at 60-70 ℃, a heating body for heating the preheating cavity can be arranged in the heat-conducting plate, the scale formed by heating the liquid in the preheating cavity falls down to the bottom of the preheating cavity under the action of dead weight, the condition that the scale is accumulated outside the heating body to cause the overheating of the heating body to cause self-explosion is avoided, and the service life of the steam generating device is guaranteed.

7. The ratio of H2/H1 and the ratio of H4/H3 are reasonably set, so that the heat loss is reduced, and meanwhile, the liquid can generate saturated steam after being heated by the preheating cavity and the vaporizing cavity. If H2/H1 is less than 1.5, the preheating cavity is too high, the temperature of the liquid after being heated by the preheating cavity is low, and the steam quantity generated by heating the preheated liquid in the vaporization cavity is not guaranteed. If H2/H1 is more than 3, the preheating cavity is too short, the liquid is easy to vaporize in the preheating cavity too early, and the heat loss is more.

If H4/H3 is smaller than 1.5, the heating intensity of the first heating body to the preheating cavity is larger than that to the vaporization cavity, liquid is easy to be vaporized in the preheating cavity too early, and the heat loss is more. If H4/H3 is more than 2, the heating intensity of the first heating body to the preheating cavity is insufficient, the temperature of the liquid after being heated by the preheating cavity cannot meet the requirement, and the steam amount generated by heating the preheated liquid in the vaporization cavity is not guaranteed.

8. The preheating heating body for heating the preheating cavity and the vaporizing heating body for heating the vaporizing cavity can be arranged separately, so that the heating temperatures of the preheating cavity and the vaporizing cavity can be controlled conveniently, the liquid is prevented from being vaporized in the preheating cavity too early, and the high-temperature liquid can be ensured to generate sufficient steam after being heated by the vaporizing cavity.

9. The vaporization cavity is divided into a liquid flow channel and a steam flow channel by the liquid guide plate, so that steam generated in the vaporization cavity can smoothly flow into the steam heating cavity through the steam flow channel and the second communication port. The ratio of the height H5 of the liquid flow channel to the height H6 of the steam flow channel is reasonably set, and meanwhile, the flow requirements of liquid and steam are met. If the H5/H6 is smaller than 1.5, the height H5 of the liquid flow channel is too short, the liquid in the vaporization cavity possibly upwards flows through the liquid guide plate, the liquid guide plate cannot effectively guide the liquid, and the heating effect of the vaporization cavity on the liquid is not improved. If the H5/H6 is larger than 2.5, the height H6 of the steam flow channel is too short, steam in the vaporization cavity cannot flow to the steam heating cavity in time through the steam flow channel and the second communication port, and the situation that liquid in the vaporization cavity flows back to the preheating cavity under the pressure of the steam possibly occurs.

10. The preheating cavity is formed by enclosing the lower part of the middle shell with the lower cover, the vaporization cavity is formed by enclosing the upper part of the middle shell with the partition plate, the steam heating cavity is formed by enclosing the partition plate with the upper cover, and the forming structure of each cavity is reasonably arranged, so that the structural difficulty of the steam generating device is reasonably simplified. The first communication port and the second communication port are respectively positioned at two ends of the length direction of the middle shell, so that the length of a flow path of the high-temperature liquid in the vaporization cavity can be reasonably increased, and the vaporization cavity can fully heat the high-temperature liquid. The second communication port can be arranged on the partition board, the second communication port can be formed by a gap between the partition board and the inner wall of the middle shell, the forming structure of the second communication port is reasonably arranged, the setting difficulty of the second communication port is reduced, and the cleaning of each cavity is also facilitated.

Drawings

FIG. 1 is a schematic diagram of a surface cleaning apparatus according to an embodiment;

FIG. 2 is a block diagram of a floor brush in a surface cleaning apparatus according to an embodiment;

FIG. 3 is a schematic view showing the connection of components such as a clean water tank, a water dividing member, a steam generating device, etc. in a surface cleaning apparatus according to an embodiment;

FIG. 4 is a structural view of a steam generating device according to an embodiment;

FIG. 5 is an internal construction view of a steam generating device according to an embodiment;

FIG. 6 is an exploded view of a steam generator according to an embodiment;

FIG. 7 is a cross-sectional view of a steam generating device according to an embodiment;

FIG. 8 is a first view of a structure of a middle case of a steam generating device according to an embodiment;

FIG. 9 is a view showing a second view angle of a middle case of a steam generating device according to an embodiment;

FIG. 10 is an internal construction view of a steam generating device according to the second embodiment;

FIG. 11 is an internal construction view of a third steam generating device according to the embodiment;

Fig. 12 is an internal structural view of a fourth steam generating device of the embodiment;

fig. 13 is an internal structural view of the fifth steam generating device of the embodiment.

In the figure, 100-cleaning member, 200-steam generator, 211-fluid inlet, 212-first communication port, 213-second communication port, 214-fluid outlet, 220-steam generation chamber, 221-preheating chamber, 222-vaporization chamber, 222 a-liquid flow path, 222 b-steam flow path, 231-first heating member, 232-second heating member, 233-electric needle, 2341-preheating heating member, 2342-vaporization heating member, 240-steam heating chamber, 251-heat-conducting plate, 2511-lower heat-conducting shell, 2512-upper heat-conducting shell, 252-middle shell, 253-lower cover, 254-upper cover, 255-partition plate, 256-lower boss, 257-upper boss, 258-drainage plate, 259-liquid flow-guiding plate, 310-water purifying tank, 320-water dividing member, 330-piping, 340-pump, 350-electromagnetic valve, 360-spraying member, 400-main body, 410-handle, 500-floor brush, 510-floor brush main body, 520-front cover, 530-receiving chamber.

Detailed Description

The utility model will be further described with reference to the drawings and the specific examples. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the utility model.

It should be noted that, the dust collector in the embodiment of the present utility model may be a hand-held cleaner with a handle and manually operated by a user, such as a hand-held floor cleaner, a hand-held dust collector, etc.; there may be a cleaning robot having a driving wheel capable of controlling the driving wheel to travel according to a pre-written program and controlling the cleaning roller to clean the floor.

Example 1

Referring to fig. 1 to 9, a steam cleanable surface cleaning apparatus according to an embodiment of the present utility model includes a cleaning member 100, a clean water tank 310, and a steam generating device 200 in communication with the clean water tank 310, the steam generating device 200 including a preheating chamber 221 having a fluid inlet 211 and a vaporizing chamber 222 for heating a fluid to generate steam, the preheating chamber 221 being located below the vaporizing chamber 222 and being in longitudinal communication with the vaporizing chamber through a first communication port 212, a sectional area S1 of the fluid inlet 211 being smaller than a sectional area S2 of the first communication port 212 so that the fluid smoothly flows from the preheating chamber 221 into the vaporizing chamber 222.

The vaporization cavity 222 and the preheating cavity 221 are vertically distributed and longitudinally communicated through the first communication port 212, the preheating cavity 221 heats Cheng Gaowen liquid which flows in through the fluid inlet 211 and flows into the vaporization cavity 222 through the first communication port 212, the vaporization cavity 222 is further heated to generate saturated steam for high-temperature liquid, the cross section area S1 of the fluid inlet 211 is smaller than the cross section area S2 of the first communication port 212, the heating efficiency of the preheating cavity 221 for the liquid is higher, so that the liquid flowing into the preheating cavity 221 can flow into the vaporization cavity 222 through the first communication port 212 after being sufficiently heated, the vaporization cavity 222 is ensured to have enough high-temperature liquid which can be heated to form saturated steam, the vaporization rate of the vaporization cavity 222 is improved, the saturated steam can be stably generated by the vaporization cavity 222, the steam supply stability is improved, and the situation of big time or the situation of liquid inclusion during the steam ejection is avoided. The distribution relation of the preheating cavity 221 and the vaporization cavity 222 is reasonably set, the distance between the two cavities is shortened, and meanwhile, the smoothness of high-temperature liquid flowing from the preheating cavity 221 to the vaporization cavity 222 is improved, so that the stability of steam supply is improved.

Referring to fig. 5, in this embodiment, the preheating chamber 221 and the vaporizing chamber 222 together form a steam generating chamber 220, in order to increase the supply temperature of steam, the steam generating apparatus further includes a steam heating chamber 240 for heating steam, the preheating chamber 221, the vaporizing chamber 222 and the steam heating chamber 240 are distributed from bottom to top, the vaporizing chamber 222 is longitudinally communicated with the steam generating chamber 220 through the second communication port 213, and the steam heating chamber 240 has the fluid outlet 214. The steam generating device 200 adopts a three-stage heating structure, so that the heating uniformity of each chamber can be improved, the heating temperature of each chamber can be better controlled, and the liquid can form superheated steam with larger flow velocity and pressure after being heated for three times. Specifically, when steam is required to be supplied, the preheating chamber 221 heats the liquid to a high temperature of 60 ℃ to 80 ℃, the vaporizing chamber 222 heats the high temperature liquid to generate saturated steam, the saturated steam is heated by the steam heating chamber 240 to form superheated steam, and the superheated steam is output through the fluid outlet 214.

Referring to fig. 5, the steam generating device 200 is provided with a heat conductive plate 251 for dividing the steam generating chamber 220 into a preheating chamber 221 located below and a vaporizing chamber 222 located above. Referring to fig. 6 and 7, in the present embodiment, the steam generating device 200 includes a middle case 252, a lower cover 253 fixed to the bottom of the middle case 252, an upper cover 254 fixed to the top of the middle case 252, a partition 255 provided between the top side of the middle case 252 and the upper cover 254, a heat conductive plate 251 provided in the middle case 252, a lower cavity extending upward from the bottom surface to the heat conductive plate 251 provided at the lower part of the middle case 252, and an upper cavity extending downward from the top surface to the heat conductive plate 251 provided at the upper part of the middle case 252. The preheating chamber 221 is defined by a lower portion of the middle case 252, the heat conductive plate 251 and the lower cover 253, the partition plate 255 is fixed to a top side of the middle case 252, the vaporization chamber 222 is defined by an upper portion of the middle case 252, the heat conductive plate 251 and the partition plate 255, and the steam heating chamber 240 is defined by the upper cover 254 and the partition plate 255. It is understood that the heat conducting plate 251 may be integrally formed with the middle case 252, or may be independently formed and then fixed in the middle case 252.

Referring to fig. 6, one end of the lower cover 253 is provided with a lower protrusion 256 protruding outward, and the fluid inlet 211 is provided on the lower protrusion 256 and communicates with the preheating chamber 221. The first communication port 212 is disposed on the heat conducting plate 251, the first communication port 212 and the fluid inlet 211 are respectively disposed at the left and right ends of the steam generating device 200, so that the distance between the fluid inlet 211 and the first communication port 212 is reasonably increased, the flow path length of the liquid in the preheating chamber 221 can be reasonably increased, and the heating effect of the preheating chamber 221 on the liquid is improved. Referring to fig. 7, the length of the partition 255 is smaller than that of the upper concave cavity, and a gap between the partition 255 and the upper inner wall of the middle case 252 forms the second communication port 213, and the second communication port 213 and the first communication port 212 are respectively located at the left and right ends of the steam generating device 200, so that the distance between the second communication port 213 and the first communication port 212 is reasonably increased, and the length of the flow path of the high-temperature liquid in the vaporization chamber 222 can be reasonably increased, so that the vaporization chamber 222 can generate sufficient saturated steam after heating the high-temperature liquid. The upper cover 254 is provided with an upper convex column 257 protruding outwards, the fluid outlet 214 is arranged on the upper convex column 257, the fluid outlet 214 and the second communication port 213 are respectively arranged at the left end and the right end of the steam generating device 200, the flow path length of saturated steam in the steam heating cavity 240 is reasonably increased, and the temperature of superheated steam flowing out through the fluid outlet 214 can be increased. It will be appreciated that lower boss 256 may also be provided at one end of the lower portion of middle housing 252.

Referring to fig. 5 and 7, the heat conductive plate 251 is embedded with the first heating body 231 for simultaneously heating the preheating chamber 221 and the vaporizing chamber 222, and the first heating body 231 is disposed in an S-shape in the left-right direction, so that the length of the first heating body 231 can be reasonably increased, and the heating effect of the first heating body 231 on the liquid can be improved. Both ends of the first heating body 231 protrude out of the heat conductive plate 251 and are electrically connected to a power supply circuit. Because the mineral substances in the liquid are easy to deposit and form scale at 60-70 ℃, the scale formed by heating the liquid in the preheating cavity 221 falls down on the lower cover 253 under the action of dead weight, the lower cover 253 can be disassembled to clean the scale, the condition that the scale is accumulated outside the first heating body 231 to cause the overheating of the first heating body 231 to cause self-explosion is avoided, and the service life of the steam generating device is guaranteed.

Referring to fig. 5 and 7, the second heating body 232 is disposed in the steam heating chamber 240, and the second heating body 232 is spirally disposed in a left-right direction, so that the length of the second heating body 232 can be reasonably increased, and the heating effect of the second heating body 232 on steam can be improved. The two ends of the second heating body 232 are provided with electric connection pins 233 extending from the upper cover 254 to the steam generating device 200, and the electric connection pins 233 are electrically connected with a power supply circuit.

In this embodiment, the flow rate of the fluid inlet 211 is Q, Q is 20 mL/min.ltoreq.Q.ltoreq.30mL/min, and S1/S2 is 0.2.ltoreq.S 1/S2 is 0.4. The cross-sectional area of the second communication port 213 is S3, and S3/S2 is 2.ltoreq.3. The cross-sectional area of the fluid outlet 214 is S4, 0.1.ltoreq.S4/S3.ltoreq.0.3. Specifically, the flow rate Q of the fluid inlet 211 is preferably set to 25mL/min, the cross-sectional area S1 of the fluid inlet 211 is about 3.2mm ², the cross-sectional area S2 of the first communication port 212 is about 10mm ², the cross-sectional area S3 of the second communication port 213 is about 25mm ², and the cross-sectional area S4 of the fluid outlet 214 is about 3.2mm ². Correspondingly, S1/S2 is about 0.32, S3/S2 is about 2.5, and S4/S3 is about 0.128. It is understood that the flow rate Q of the fluid inlet 211 may be set to be 20mL/min, 22mL/min, 24mL/min, 26mL/min, 28mL/min, 30mL/min, etc. It is understood that the cross-sectional area S1 of the fluid inlet 211, the cross-sectional area S2 of the first communication port 212, the cross-sectional area S3 of the second communication port 213, and the cross-sectional area S4 of the fluid outlet 214 may be set to other reasonable sizes, and accordingly, S1/S2 may be set to other reasonable sizes such as 0.2, 0.22, 0.25, 0.27, 0.3, 0.31, 0.33, 0.35, 0.37, 0.4, and the like, and S3/S2 may be set to other reasonable sizes such as 2, 2.1, 2.2, 2.3, 2.4, 2.6, 2.7, 2.8, 2.9, 3, and the like, and S4/S3 may be set to other reasonable sizes such as 0.1, 0.15, 0.18, 0.2, 0.22, 0.25, 0.27, and 0.3.

The volume of the preheating chamber 221 is V1, the volume of the vaporizing chamber 222 is V2, the volume of the steam heating chamber 240 is V3, and in order to enable the steam generating chamber 220 to supply sufficient saturated steam to the steam heating chamber 240 and ensure the temperature and the flow rate of the superheated steam output through the fluid outlet 214, the relationship among the volume V1 of the preheating chamber 221, the volume V2 of the vaporizing chamber 222 and the volume V3 of the steam heating chamber 240 is required to be reasonably set, and the volume V1/V2 is more than or equal to 0.4 and less than or equal to 0.6,0.65 and the volume V3/V2 is more than or equal to 0.8. In this embodiment, the volume V1 of the preheating chamber 221 is about 4756mm ³, the volume V2 of the vaporization chamber 222 is about 9867mm ³, the volume V3 of the steam heating chamber 240 is about 7064mm ³, and accordingly, V1/V2 is about 0.482 and V3/V2 is about 0.716. It will be appreciated that the volume V1 of the preheating chamber 221, the volume V2 of the vaporizing chamber 222, and the volume V3 of the steam heating chamber 240 may be set to other reasonable sizes, and accordingly, V1/V2 may be set to other reasonable sizes such as 0.4, 0.45, 0.5, 0.55, and 0.6, and V3/V2 may be set to other reasonable sizes such as 0.65, 0.7, 0.75, and 0.8.

Referring to FIG. 7, the preheating chamber 221 has a height H1, the vaporizing chamber 222 has a height H2, the first heating body 231 extends into the preheating chamber 221 has a height H3, the first heating body 231 extends into the vaporizing chamber 222 has a height H4, and in order to reduce heat loss and simultaneously enable liquid to generate saturated steam after being heated by the preheating chamber 221 and the vaporizing chamber 222, the ratio of H2/H1 to H4/H3 and the ratio of H2/H1 to H4/H3 are reasonably set to be 1.5 to or less than or equal to 3,1.5 to or less than or equal to H4/H3 to or less than or equal to 2. In this embodiment, the height H1 of the preheating chamber 221 is about 3mm, the height H2 of the vaporization chamber 222 is about 7.5mm, and H2/H1 is about 2.5. The lower portion of the first heating body 231 protrudes downward with respect to the bottom surface of the heat conductive plate 251, the upper portion of the first heating body 231 protrudes upward with respect to the top surface of the heat conductive plate 251, the bottom surface of the heat conductive plate 251 is provided with a lower heat conductive shell 2511 protruding downward and covering the lower portion of the first heating body 231, the top surface of the heat conductive plate 251 is provided with an upper heat conductive shell 2512 protruding upward and covering the upper portion of the first heating body 231, and the lower heat conductive shell 2511 and the upper heat conductive shell 2512 are preferably integrally formed with the heat conductive plate 251. The height of the lower thermally conductive case 2511 protruding downward with respect to the bottom surface of the thermally conductive plate 251 is H3, the height of the upper thermally conductive case 2512 protruding upward with respect to the top surface of the thermally conductive plate 251 is H4, H3 is about 2mm, H4 is about 3.5mm, and H4/H3 is about 1.75. It will be appreciated that H2/H1 may be set to other reasonable sizes of 1.5, 1.7, 2, 2.3, 2.6, 2.8, 3, etc., and H4/H3 may be set to other reasonable sizes of 1.5, 1.6, 1.7, 1.8, 1.9, 2, etc.

Referring to fig. 7 and 8, a series of drainage plates 258 for guiding the liquid are disposed in the preheating chamber 221, and the drainage plates 258 guide the liquid flowing in through the fluid inlet 211, so that the liquid can flow to the first communication port 212 along the bending direction of the first heating body 231, which is beneficial to improving the heating effect of the first heating body 231 on the liquid in the preheating chamber 221.

Referring to fig. 7 and 9, a series of liquid deflectors 259 for guiding the high-temperature liquid are disposed at the lower portion of the vaporization chamber 222, and the liquid deflectors 259 guide the high-temperature liquid flowing in through the first communication port 212, so that the high-temperature liquid can flow to the second communication port 213 along the bending direction of the first heating body 231, which is beneficial to improving the heating effect of the first heating body 231 on the high-temperature liquid, and sufficient saturated steam can be generated after the high-temperature liquid flows through the vaporization chamber 222. The height of the liquid deflector 259 is smaller than that of the vaporizing chamber 222, the vaporizing chamber 222 is divided into a liquid flow passage 222a at the lower part and a steam flow passage 222b at the upper part by the liquid deflector 259, and the steam flow passage 222b and the liquid flow passage 222a are vertically distributed, so that steam generated in the vaporizing chamber 222 can smoothly flow into the steam heating chamber 240 through the steam flow passage 222b and the second communication port 213.

In order to meet the flow requirements of high temperature liquid and vapor in the vaporization chamber 222 at the same time, the heights of the liquid flow channel 222a and the vapor flow channel 222b are set reasonably. The height of the liquid flow channel 222a is H5, and the height of the steam flow channel 222b is H6, wherein H5/H6 is more than or equal to 1.5 and less than or equal to 2.5. In this embodiment, the liquid deflector 259 forms an interface between the liquid flow channel 222a and the vapor flow channel 222b, the height H5 of the liquid flow channel 222a is about 5mm, the height H6 of the vapor flow channel 222b is about 2.5mm, and the height H5/H6 is about 2. It will be appreciated that H5/H6 may also be provided in other reasonable sizes of 1.5, 1.6, 1.7, 1.8, 1.9, 2.1, 2.2, 2.3, 2.4, 2.5, etc.

Referring to fig. 1 and 2, the surface cleaning apparatus of the present embodiment further includes a main body 400 and a floor brush 500, the floor brush 500 includes a floor brush body 510 and a front cover 520, a handle 410 is disposed at a top end of the main body 400, a bottom end of the main body 400 is pivotally connected to the floor brush body 510 via a joint, and the main body 400 can swing up and down relative to the floor brush 500. The front cover 520 is detachably mounted on the front side of the floor brush main body 510, and when the front cover 520 is mounted on the front side of the floor brush main body 510, the front cover 520 and the floor brush main body 510 are enclosed to form a containing cavity 530, and the cleaning member 100 is detachably disposed in the containing cavity 530. The cleaning member 100 may be of a single-roll brush structure, a double-roll brush structure, or a crawler-type mop structure, without being excessively limited. The brush body 510 or the cleaning member 100 is provided with a driving assembly for driving the cleaning member 100 to rotate, and the structure of the driving assembly can refer to the prior art and will not be described herein in detail.

Referring to fig. 3, a water dividing member 320 for supplying the cleaning member 100 with liquid is provided in a front side or a front cover 520 of the floor brush main body 510, the water dividing member 320 is connected to the fresh water tank 310 through a pipe 330, and a pump 340 is provided in the pipe 330. In order to expand the supply object of the steam, the steam generating device 200 is provided on the pipe 330 downstream of the pump 340, the pipe 330 is further provided with a solenoid valve 350 downstream of the steam generating device 200, the solenoid valve 350 has one inlet and two outlets, the floor brush 500 is provided with a spraying member 360 disposed toward the floor, and the spraying member 360 and the water dividing member 320 are respectively connected to the two outlets of the solenoid valve 350. The superheated steam generated by heating the steam generating device 200 can only flow to the spraying part 360, can only flow to the water diversion part 320 through the switching of the electromagnetic valve 350, can also flow to the spraying part 360 and the water diversion part 320 at the same time, the steam sprayed from the spraying part 360 flows to the ground to soften stubborn stains on the ground, and the steam sprayed from the water diversion part 320 flows to the cleaning part 100 to sterilize and disinfect the cleaning part 100. Switching of the steam supply object by the solenoid valve 350 may be performed according to a program written in advance, or may be performed according to a manual operation by a user. In addition, the steam generating device 200 may heat only the normal temperature liquid to Cheng Gaowen liquid according to the operation requirement of the surface cleaning device, instead of heating the normal temperature liquid to Cheng Gaowen steam.

Other structures of the surface cleaning apparatus may refer to the prior art, for example, the floor brush body 510 is provided with a scraping portion for scraping the cleaning member 100, the floor brush 500 is provided with an illumination structure, and the surface cleaning apparatus is further provided with a dirt collecting assembly including a dirt collecting fan, a dirt tank, a dirt collecting channel, etc., which will not be described herein.

When the surface cleaning apparatus works, liquid in the clean water tank 310 flows into the steam generating apparatus 200 from the fluid inlet 211 under the pumping action of the pump 340, the first heating body 231 heats the liquid in the preheating chamber 221, the heated high-temperature liquid flows upwards into the vaporizing chamber 222 through the first communication port 212, the first heating body 231 heats the high-temperature liquid in the vaporizing chamber 222 to generate saturated steam, the saturated steam flows upwards into the steam heating chamber 240 through the second communication port 213, the second heating body 232 in the steam heating chamber 240 heats the saturated steam to generate superheated steam, and the superheated steam is output through the fluid outlet 214 and can be sprayed onto the ground through the spraying member 360 or can be sprayed onto the cleaning member 100 through the water dividing member 320. When the surface cleaning apparatus needs only the high temperature liquid without using the steam, the steam generating apparatus 200 heats Cheng Gaowen the normal temperature liquid, and the high temperature liquid may be sprayed onto the floor through the spraying member 360 or may be sprayed onto the cleaning member 100 through the water dividing member 320.

It will be appreciated that steam generator 200 may also be connected to clean water tank 310 via additional piping.

Example two

Referring to fig. 10, in the present embodiment, a preheating heating body 2341 for heating the preheating chamber 221 and a vaporizing heating body 2342 for heating the vaporizing chamber 222 are embedded in the heat conductive plate 251, and the preheating heating body 2341 is located below the vaporizing heating body 2342. The heating body for heating the preheating chamber 221 and the heating body for heating the vaporizing chamber 222 are separately arranged, so that the heating temperatures of the preheating chamber 221 and the vaporizing chamber 222 are controlled conveniently, the liquid is prevented from being vaporized prematurely in the preheating chamber 221, and the high-temperature liquid is ensured to generate sufficient saturated steam after being heated by the vaporizing chamber 222.

It is understood that the preheating body 2341 may be fixed to the bottom of the heat conductive plate 251 by welding or the like.

It is understood that vaporization heating body 2342 may be fixed to the top of heat-conductive plate 251 by welding or the like.

Other structures of the second embodiment are the same as those of the first embodiment, and will not be described in detail here.

Example III

Referring to fig. 11, in the present embodiment, the steam generating device 200 is provided with two chambers, namely, a steam generating chamber 220 and a steam heating chamber 240, the steam generating chamber 220 is formed by enclosing a lower portion of a middle shell 252 with a lower cover 253, the steam heating chamber 240 is formed by enclosing an upper portion of the middle shell 252 with an upper cover 254, a heat conducting plate 251 of the middle shell 252 is provided with a first communication port 212, a fluid inlet 211 is communicated with the steam generating chamber 220, the fluid inlet 211 and the first communication port 212 are respectively arranged at left and right ends of the steam generating device 200, and the first communication port 213 and the fluid outlet 214 are respectively arranged at left and right ends of the steam generating device 200.

Other structures of the third embodiment are the same as those of the first embodiment, and will not be described in detail here.

Example IV

Referring to fig. 12, in the present embodiment, the length of the heat conductive plate 251 is smaller than the inner length of the middle case 252, and the first communication port 212 is formed by a gap between the end of the heat conductive plate 251 and the inner wall of the middle case 252.

Other structures of the fourth embodiment are the same as those of the first embodiment, and will not be described in detail here.

It will be appreciated that the fourth embodiment may be combined with the second embodiment.

Example five

Referring to fig. 13, in this embodiment, the length of the partition 255 is identical to the inner length of the upper portion of the middle case 252, and the partition 255 is provided with a plurality of small holes spaced apart from one end of the second communication port 213, and the second communication port 213 is formed of a plurality of small holes.

Other structures of the fifth embodiment are the same as those of the first embodiment, and will not be described in detail here.

It will be appreciated that the fifth embodiment may be combined with either the second embodiment or the fourth embodiment.

In addition to the above preferred embodiments, the present utility model has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the utility model, which shall fall within the scope of the utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a but clean surface cleaning device of steam, includes cleaning member, clean water tank, the steam generating device with clean water tank intercommunication, steam generating device includes the preheating chamber that has the fluid entry and is used for heating the vaporization chamber that the fluid produced steam, its characterized in that, the preheating chamber is located the below of vaporization chamber and both vertically communicate through first intercommunication mouth, and the sectional area S1 of fluid entry is less than the sectional area S2 of first intercommunication mouth to make the steady inflow vaporization chamber of fluid from the preheating chamber.

2. The steam cleanable surface cleaning device of claim 1, wherein the fluid inlet has a flow rate Q of 20mL/min +.q +.30ml/min, and 0.2 +.s 1/S2 +.0.4.

3. A steam cleanable surface cleaning apparatus according to claim 1 or 2 further comprising a steam heating chamber for heating steam and having a fluid outlet, the steam heating chamber being disposed above the vaporisation chamber and communicating longitudinally through a second communication port having a cross-sectional area S3, 2.ltoreq.s3/S2.ltoreq.3.

4. A steam cleanable surface cleaning device according to claim 3 wherein the cross-sectional area of the fluid outlet is S4,0.1 ∈s4/s3 ∈0.3.

5. The steam cleanable surface cleaning apparatus of claim 1, wherein the preheating chamber has a volume V1 and the vaporization chamber has a volume V2, 0.4V 1/V2 0.6.

6. A steam cleanable surface cleaning apparatus according to claim 1 wherein the steam generating means is provided with a thermally conductive plate for separating the preheating chamber from the vaporisation chamber, the first communication port being provided in the thermally conductive plate.

7. The steam cleanable surface cleaning apparatus of claim 6, wherein the heat conducting plate is embedded with a first heating body for simultaneously heating the preheating cavity and the vaporizing cavity, the preheating cavity is H1, the vaporizing cavity is H2, the first heating body extends into the preheating cavity to be H3, the first heating body extends into the vaporizing cavity to be H4, and 1.5H 2/H1 is not less than 3,1.5 and not more than H4/H3 is not less than 2.

8. The steam cleanable surface cleaning apparatus of claim 6, wherein the heat transfer plate is provided with a preheating heating body for heating the preheating chamber and a vaporizing heating body for heating the vaporizing chamber, the preheating heating body being located below the vaporizing heating body.

9. A steam cleanable surface cleaning apparatus according to claim 3 wherein the lower portion of the vaporization chamber is provided with a liquid deflector having a height less than the height of the vaporization chamber to divide the vaporization chamber into a liquid flow path at the lower portion and a steam flow path at the upper portion, the liquid flow path having a height H5 and the steam flow path having a height H6, 1.5.ltoreq.h5/h6.ltoreq.2.5.

10. A steam cleanable surface cleaning apparatus according to claim 3, wherein the steam generating apparatus comprises a middle shell, a lower cover fixed to the bottom of the middle shell, an upper cover fixed to the top of the middle shell, a partition plate provided between the top side of the middle shell and the upper cover, the preheating chamber is formed by enclosing the lower part of the middle shell with the lower cover, the vaporizing chamber is formed by enclosing the upper part of the middle shell with the partition plate, the steam heating chamber is formed by enclosing the partition plate with the upper cover, the first communication port and the second communication port are respectively positioned at both ends of the middle shell in the length direction, and the second communication port is provided on the partition plate or is formed by a gap between the partition plate and the inner wall of the middle shell.