CN114938932B

CN114938932B - Steam cleaning equipment

Info

Publication number: CN114938932B
Application number: CN202210876416.4A
Authority: CN
Inventors: 黄鹤敏; 胡文强; 马娟娟
Original assignee: Kingclean Electric Co Ltd; Lexy Electric Green Energy Technology Suzhou Co Ltd
Current assignee: Kingclean Electric Co Ltd; Lexy Electric Green Energy Technology Suzhou Co Ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2022-10-04
Anticipated expiration: 2042-07-25
Also published as: CN114938932A

Abstract

The invention belongs to the technical field of cleaning equipment, and discloses steam cleaning equipment. The steam cleaning equipment comprises a supporting mechanism and a steam engine, wherein the supporting mechanism comprises a ground brush component; the steam engine is detachably arranged on the supporting mechanism and used for providing steam for the floor brush component; the steam engine comprises a heating pot, wherein the heating pot comprises a shell, a heating piece and a heating piece arranged in the heating piece; the outer shell is sleeved outside at least part of the heating element and is arranged with at least part of the heating element at intervals to form a cavity; a water inlet channel and an exhaust channel are arranged in the heating element, the lower end of the water inlet channel is a water inlet, the upper end of the water inlet channel is communicated with the cavity, the lower end of the exhaust channel is communicated with the cavity, and the upper end of the exhaust channel is an air supply port; the circumferential outer wall of the heating part is provided with a circular arc-shaped groove, so that at least part of water entering the cavity from the water inlet channel enters the exhaust channel through the groove. The heating pot body in the steam cleaning equipment provided by the invention is small in size and low in cost, and the steam cleaning equipment can be prevented from spraying water when in use.

Description

Steam cleaning equipment

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to steam cleaning equipment.

Background

The steam cleaning device is a cleaning device which is used for sterilizing and disinfecting through high-temperature steam generated by heating water. The steam cleaning equipment comprises a machine body, a floor brush connected with the lower end of the machine body and a steam engine arranged on the machine body, wherein the steam engine is used for providing steam.

The steam engine generates steam through the heating pan. Because the volume requirement of the whole steam cleaning equipment is limited, a miniaturized heating pot is needed. However, after the heating pan is miniaturized, the heating to the water is insufficient, which causes the phenomenon of spraying water from the air outlet of the floor brush. At present, the prior art discloses a plurality of heating pots which are designed with complicated liquid flow paths, but the processing is complicated, the cost is increased, and the problems of more or less water spraying from an air outlet, air outlet blockage caused by scale and the like still exist.

Disclosure of Invention

The invention aims to provide steam cleaning equipment to solve the problems that in the prior art, a heating pot is complex in structure and high in cost, and water is sprayed from an air outlet.

In order to achieve the purpose, the invention adopts the following technical scheme:

a steam cleaning device comprising:

a support mechanism including a floor brush assembly;

the steam engine is detachably arranged on the supporting mechanism and is used for providing steam for the floor brush component;

the steam engine comprises a heating pot, wherein the heating pot comprises a shell, a heating part and a heating part arranged in the heating part;

the outer shell is sleeved outside at least part of the heating piece and is arranged with at least part of the heating piece at intervals to form a cavity;

a water inlet channel and an exhaust channel are arranged in the heating element, the lower end of the water inlet channel is a water inlet, the upper end of the water inlet channel is communicated with the cavity, the lower end of the exhaust channel is communicated with the cavity, and the upper end of the exhaust channel is an air supply port;

the heating element is U-shaped and is positioned between the water inlet channel and the exhaust channel, two extension arms of the heating element vertically extend, the two extension arms are arranged along a first direction, the water inlet channel and the exhaust channel are arranged along a second direction, and an included angle is formed between the first direction and the second direction;

the circumference outer wall that generates heat the piece is provided with convex recess, every the extension arm with adjacent intake passage and/or set up between the exhaust passage the recess, at least one the recess by intake passage's upper end downwardly extending, so that by intake passage's upper end gets into at least some fluid processes of cavity the recess gets into in the exhaust passage.

As an alternative to the above steam cleaning device, the heat generating member integrally forms the water inlet passage and the air discharge passage, both of which extend vertically.

As an alternative of the above steam cleaning device, the water inlet channel penetrates through the heat generating member, and the upper end of the water inlet channel is spaced from the top surface of the housing;

the distance between the upper end of the water inlet channel and the top surface of the shell is 0.5mm-1.5mm.

As an alternative to the above steam cleaning device, the cross-sectional area of the water inlet passage and/or the air discharge passage gradually increases from bottom to top;

the width of the water inlet channel is 7mm-12mm.

As an alternative of the above steam cleaning device, the top of the circumferential side wall of the heat generating member is provided with a notch communicated with the water inlet channel;

the width of the notch is 2mm-3.5mm, and the height is 6mm-9mm.

As an alternative to the above-mentioned steam cleaning device, the indentation is provided with at least two.

As an alternative to the above steam cleaning device, the heat generating member includes:

the base is fixed with the shell, and a cavity is enclosed by the base and the shell;

the body generates heat, with the pedestal connection is located in the cavity, the circumference lateral wall of the body that generates heat with the shell interval sets up, the heating member set up in it is internal to generate heat, the recess set up in on the outer wall of the body that generates heat, in order to reduce the outer wall of the body that generates heat with distance between the heating member.

As an alternative of the above steam cleaning device, the grooves are provided on both sides of the exhaust passage, and heating ribs are convexly provided in two of the grooves adjacent to the exhaust passage.

As an alternative of the above steam cleaning device, a plurality of the heating ribs are arranged at intervals in the vertical direction in two of the grooves adjacent to the exhaust passage.

As an alternative of the above steam cleaning device, the heating element is injection molded, a mold for injection molding the heating element has a thimble, the heating rib has an abutting plane perpendicular to an ejecting direction of the thimble, and the abutting plane abuts against the thimble.

As an alternative to the above steam cleaning device, the radius of the groove is 7mm-9mm.

As an alternative of the above steam cleaning device, the heat generating member is provided with a first through hole and a second through hole, the second through hole is located above the first through hole, and the first through hole and the second through hole communicate the exhaust passage and the cavity.

As an alternative to the above steam cleaning device, the first through hole has a larger aperture than the second through hole;

the ratio of the cross-sectional area of the first through-hole to the cross-sectional area of the second through-hole is 1.5-3.

As an alternative of the above steam cleaning device, the distance between the first through hole and the bottom surface of the cavity is 1/5-2/5 of the height of the heat generating member;

the distance between the second through hole and the bottom surface of the heating element is 4/5-1 of the height of the cavity.

The invention has the beneficial effects that:

according to the steam cleaning equipment provided by the invention, the water inlet channel and the exhaust channel are arranged in the heating part, and the heating part is arranged in the heating part, so that on one hand, the structure is compact, the internal space of the heating part can be reasonably utilized, the overall volume of the heating pot is reduced, the requirement of the steam cleaning equipment on the volume is met, and the steam cleaning equipment is more portable and flexible when being used by a user. On the other hand, the heating element is closer to the water inlet channel and the exhaust channel, so that the heat generated by the heating element can be more quickly contacted with the water in the water inlet channel and the gas in the exhaust channel, and the heating is more sufficient;

the fluids in the water inlet channel and the air exhaust channel move from bottom to top, and the flowing speed of the fluids can be slowed down under the action of the gravity of the fluids, so that the staying time of the fluids in the water inlet channel and the air exhaust channel is prolonged, and the fluids can be fully heated;

through setting up the recess, can reduce the distance between water and the heating member in the cavity, further guarantee to fully heat water, avoid steam cleaning equipment the problem of water spray to appear when using.

Drawings

FIG. 1 is a schematic view of a steam cleaning apparatus provided in the present invention;

FIG. 2 is a first schematic structural diagram of a steam engine provided in the present invention;

FIG. 3 is a schematic structural diagram II of the steam engine provided by the present invention;

FIG. 4 is a schematic view of the steam engine of the present invention shown without a portion of the housing;

FIG. 5 is a schematic structural view of a heating pan provided by the present invention;

FIG. 6 is a front view of the heating pan provided by the present invention;

FIG. 7 isbase:Sub>A sectional view taken along line A-A of FIG. 6;

FIG. 8 is a first schematic structural view of a heat generating member provided by the present invention;

FIG. 9 is a side view of a heat-generating pan provided by the present invention;

FIG. 10 is a sectional view taken along line B-B of FIG. 9;

FIG. 11 is a top view of the heat generating member provided by the present invention;

FIG. 12 is a second schematic structural view of the heat generating component provided by the present invention;

fig. 13 is a front view of the heat generating member provided by the present invention.

In the figure:

10. a support mechanism; 11. a floor brush assembly; 12. a saddle; 13. a shaft body; 20. a steam engine; 21. a housing; 211. a handle; 212. a butt joint port; 22. an operation section; 23. a nozzle; 24. a heating pot; 241. a housing; 242. a heat generating member; 2421. a base; 2422. a heating body; 2423. a water inlet channel; 2424. an exhaust passage; 2425. a notch; 2426. heating the ribs; 2427. a groove; 2428. a first through hole; 2429. a second through hole; 243. an air outlet joint; 244. a water inlet joint; 245. a heating member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The present embodiment provides a steam cleaning apparatus. As shown in fig. 1, the steam cleaning device includes a support mechanism 10 and a steamer 20. The support mechanism 10 includes a shaft 13 and a floor brush assembly 11. The top of pole body 13 is provided with the handle, and scrubbing brush subassembly 11 is connected to the bottom of pole body 13, and steam engine 20 sets up on supporting mechanism 10 for provide steam to scrubbing brush subassembly 11, be provided with the steam outlet on the scrubbing brush subassembly 11, scrubbing brush subassembly 11 realizes cleaning in the relative ground removal in-process.

In order to make the appearance of the steam cleaning device simpler, the fluid channel is arranged in the rod body 13, the steam engine 20 provides steam for the floor brush component 11 through the fluid channel in the rod body 13, and an air supply pipeline is not required to be arranged outside, so that the structure of the steam cleaning device is simplified, and the attractiveness of the steam cleaning device is improved.

In order to make the steam cleaning device more flexible to use, a support table 12 is arranged on the shaft 13, the support table 12 supports the steam engine 20 from the bottom, so that the cross section size of the shaft 13 can be basically consistent along the length direction, and the shaft 13 is of an elongated structure, and the length of the shaft is far larger than the radial size of the shaft. Therefore, the flexibility of the steam cleaning equipment is greatly improved on the whole, and the steam cleaning equipment is more convenient to use.

When the user uses the steam cleaning device, the user drives the rod body 13 and the floor brush assembly 11 to move integrally by holding the handle, so that the floor brush assembly 11 moves and cleans on the ground to be cleaned. The steam engine 20 starts and produces steam, and steam passes through in the fluid passage gets into the scrubbing brush subassembly 11 to steam outlet through on the scrubbing brush subassembly 11 discharges, in order spouting to ground, through steam pasteurization, get rid of the greasy dirt, further improve clean effect.

To better meet the user's needs, the steam engine 20 is removably connected to the support mechanism 10 such that the steam engine 20 can be removed from the support mechanism 10 and both the steam engine 20 and the support mechanism 10 can be used independently. As shown in fig. 2 and 3, the steam engine 20 includes a housing 21, and a handle 211 is formed on the housing 21, so that an operator can mount or dismount the steam engine 20 through the handle 211.

Further, the steam engine 20 is provided with an operation part 22 for a user to input instructions, so that the user can control the operation parameters or the operation mode of the steam engine 20 as required. Alternatively, the operation section 22 may include a touch panel and/or control keys.

In order to improve the stability of the steam engine 20 assembled with the support mechanism 10, as shown in fig. 3, the casing 21 is provided with a docking port 212, and the docking port 212 is provided with a nozzle 23. When the steamer 20 is connected with the rod 13, the corresponding butt joint part on the rod 13 can be inserted into the butt joint port 212 and fixed, at the moment, the bottom of the steamer 20 is supported by the tray 12, the upper end of the steamer is fixed with the rod 13 through the butt joint port 212, the fixing effect is good, and the steamer 20 is more stable in use.

When the steamer 20 is secured to the shaft 13, the nozzle 23 communicates with the fluid passageway in the shaft 13 so that steam passes through the nozzle 23 into the fluid passageway to be supplied to the floor brush assembly 11.

As shown in fig. 4, the steamer 20 further includes a heating pan 24 disposed in the cabinet 21, and the heating pan 24 is a steam generating structure for heating water and generating steam.

As shown in fig. 5 to 7, the heating pan 24 includes a housing 241, a heating member 242, and a heating member 245. The housing 241 is disposed outside a portion of the heating element 242 and fixed to the heating element 242. The heating element 242 and the housing 241 are disposed at intervals around the fitting portion to form a cavity. The heating element 245 is arranged in the heating element 242, a water inlet channel 2423 and an air exhaust channel 2424 are arranged in the heating element 242, the lower end of the water inlet channel 2423 is a water inlet, the upper end of the water inlet channel 2423 is communicated with the cavity, the lower end of the air exhaust channel 2424 is communicated with the cavity, and the upper end of the air exhaust channel 2424 is an air supply port. When the heating pan 24 works, the heating element 245 is electrified and then heated, water enters the water inlet passage 2423 from the water inlet, and heat generated by the heating element 245 and the heating element 242 are in heat conduction to heat the water in the water inlet passage 2423, so that the temperature of the water is increased. The water in the water inlet passage 2423 continues to flow upward through the upper end of the water inlet passage 2423 into the cavity. The water is collected at the bottom of the cavity by gravity, at which time the water in the cavity is continuously heated by contact with the heat generating member 242, and the formed steam enters the vent passage 2424 to be continuously heated and flows upward to be discharged through the air supply port at the upper end of the vent passage 2424 to flow toward the floor brush assembly 11.

In this embodiment, as shown in fig. 7, a water inlet passage 2423 and an air exhaust passage 2424 are formed in the heat generating element 242, and the heating element 245 is disposed in the heat generating element 242, on one hand, the structure is compact, the internal space of the heat generating element 242 can be reasonably utilized, the overall volume of the heat generating pot 24 is reduced, so as to meet the requirement of the steam cleaning device for volume, and the steam cleaning device is more portable and flexible when being used by a user. On the other hand, the heating element 245 is closer to the water inlet passage 2423 and the air exhaust passage 2424, and heat generated by the heating element 245 can be quickly contacted with water in the water inlet passage 2423 and air in the air exhaust passage 2424, so that the heating effect on the water is improved, and the problem of water spraying when the steam cleaning device is used is avoided.

Further, the water intake passage 2423 and the air exhaust passage 2424 each extend in the vertical direction. The water flows from bottom to top in the water inlet channel 2423, the gravity of the water needs to be overcome, the retention time of the water in the water inlet channel 2423 is prolonged, the water is fully heated, and the problem that the water cannot be fully heated due to the fact that the size of the heating pot 24 is reduced can be solved. Similarly, the generated steam flows from bottom to top in the exhaust passage 2424, which can prolong the stay time of the steam in the exhaust passage 2424 to further heat the steam, thereby ensuring the temperature of the steam supplied to the inside of the floor brush assembly 11 and improving the cleaning effect.

In this embodiment, the heat generating member 242 is integrally formed with the water inlet passage 2423 and the air outlet passage 2424, so that the number of parts in the heat generating pan 24 can be reduced, and the purposes of simplifying the structure and reducing the cost can be achieved.

In this embodiment, the water inlet 2423 penetrates through the heating element 242 in the vertical direction, which is beneficial to extending the length of the water inlet 2423, so as to improve the heating effect on the water in the water inlet 2423. In this embodiment, water is fed from bottom to top, so that the retention time of water in the water inlet passage 2423 can be prolonged, water can be sufficiently heated, the retention time of fluid in the flow passage is not required to be prolonged by arranging a complicated flow passage, the structure of the heating element 242 is simplified, and the processing difficulty and cost are reduced.

The bottom end of the water inlet passage 2423 is connected with a water inlet joint 244, and the water inlet joint 244 is used for connecting a pipeline so as to lead water into the water inlet passage 2423.

Further, the cross-sectional area of the water inlet passage 2423 gradually increases from bottom to top. The lower portion of the water inlet passage 2423 is narrow, and the upper portion of the water inlet passage 2423 is wide, so that the water flowing into the water inlet passage 2423 can be decelerated, and meanwhile, the flow velocity of the water can be further slowed down under the action of the gravity of the water, the time of the water in the water inlet passage 2423 can be prolonged, and the water in the water inlet passage 2423 can be heated more fully. Optionally, the width of the water inlet 2423 is 7mm to 12mm, e.g., 8mm, 9mm, 10mm or 11mm.

Likewise, the sectional area of the vent passages 2424 gradually increases from bottom to top, which can increase the flow rate of the supplied steam on the one hand, and can slow down the flow velocity of the steam in the vent passages 2424 on the other hand, thereby prolonging the time of the steam in the vent passages 2424 so that the steam can be further sufficiently heated. An air outlet joint 243 is connected to the top end of the exhaust passage 2424, and the air outlet joint 243 is used for connecting a pipeline to supply steam to the nozzle 23.

In order to enable water in the water inlet passage 2423 to smoothly enter the cavity for further heating, the top end of the water inlet passage 2423 is spaced from the top surface of the shell 241. The water introduced into the water inlet passage 2423 may be introduced into the cavity through a gap between the heat generating member 242 and the top surface of the case 241.

Optionally, the distance between the top end of the water inlet channel 2423 and the top surface of the housing 241 is 0.5mm-1.5mm. For example 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, 1.2mm, 1.3mm or 1.4mm.

In order to avoid that water cannot enter the cavity in time due to overlarge water flow, the top of the circumferential side wall of the heating piece 242 is provided with a notch 2425 communicated with the water inlet passage 2423. When the inflow rate is large, water in the water inlet passage 2423 can overflow into the cavity through the notch 2425. In this embodiment, the notch 2425 extends to the top end of the heat generating element 242, so that the water in the water inlet 2423 can enter the cavity through the notch 2425 only after flowing upwards to the upper end of the water inlet 2423, thereby ensuring the flowing stroke and time of the water in the water inlet 2423.

In this embodiment, two notches 2425 are provided, and the two notches 2425 are arranged along the circumferential direction of the water inlet channel 2423, so that the water flow entering the cavity can be increased.

Optionally, notch 2425 is 2mm to 3.5mm wide to ensure water output. For example, notch 2425 may be 2.5mm, 2.6mm, 2.84mm, or 3mm wide; the height of the notch 2425 is 6mm-9mm, so that on the basis of ensuring that water flow can enter the cavity in time, the flowing stroke of the water flow in the water inlet channel 2423 is prolonged, and the heating effect on water is ensured. For example, notch 2425 may be 7mm or 8mm in height.

In some embodiments, only one notch 2425 may be provided, or three or more notches may be provided, and the specific number of notches 2425 and the size of each notch 2425 may be adjusted as desired.

In some embodiments, water in the water inlet passage 2423 may enter the cavity only through the gap between the top end thereof and the top surface of the housing 241, i.e., no notch 2425 is provided. In some embodiments, the water in the water inlet passage 2423 may enter the cavity only through the notch 2425, i.e. the top surface of the water inlet passage 2423 abuts against the housing 241 and the top end of the water inlet passage 2423 is closed.

In this embodiment, as shown in fig. 7 and 8, the heat generating member 242 includes a base 2421 and a heat generating body 2422. The base 2421 is fixed with the housing 241, and the housing 241 is buckled on the base 2421, so that the base 2421 and the housing 241 enclose a cavity. It should be noted here that the heat generating body 2422 is located in the casing 241, and the top and the circumferential side wall of the heat generating body 2422 are spaced from the casing 241.

Alternatively, the base 2421 and the housing 241 may be fixed by a fastener such as a screw, and a sealing member may be disposed between the base 2421 and the housing 241 to improve sealability. Wherein, the sealing element can be a sealing ring.

To extend the length of the vent 2424, the top of the vent 2424 penetrates the top surface of the heat generating body 2422, and the bottom end extends to the top surface of the base 2421, so as to extend the fluid flow path in the vent 2424 and ensure sufficient heating.

Because the water in the water inlet channel 2423 flows downwards after being heated and enters the cavity for further heating, in order to improve the heating effect on the water in the cavity, the circumferential outer wall of the heating body 2422 is provided with a groove 2427. The circumference outer wall of body 2422 that generates heat indent formation recess 2427 can reduce the circumference outer wall of body 2422 that generates heat and the distance between the heating member 245 in the piece 242 that generates heat to the water in the cavity can be heated to the shorter distance of heat conduction that makes heating member 245 produce, so that fully heat the water in the cavity, avoid because of the insufficient steam cleaning equipment that leads to of water heating in the cavity water spray phenomenon appears.

In addition, by providing the groove 2427, the volume of the cavity can be increased, so that the water volume which can be accommodated by the cavity is increased.

Further, at least one groove 2427 extends downwards from the upper end of the water inlet passage 2423, so that at least part of water entering the cavity from the upper end of the water inlet passage 2423 can flow downwards along the groove 2427 to reach the bottom of the cavity, and then enters the air exhaust passage 2424 from the cavity. When water flows in the groove 2427, the wall of the groove 2427 is close to the heating member 245, so that the water can be more sufficiently heated, and the heating effect is better.

In addition, the groove 2427 extends in the vertical direction, and the distance between the outer wall of the lower heating body 2422 and the heating member 245 at an arbitrary height can be reduced.

Optionally, the grooves 2427 may be provided in a plurality to further increase the amount of water that can be accommodated by the cavity, which is beneficial to further ensure sufficient heating and heating efficiency of the heating element 245 for the water in the cavity.

In order to reasonably utilize the space in the heating element 242, as shown in fig. 9 and 10, in the present embodiment, the heating element 245 is U-shaped, the opening of the heating element 245 is disposed downward, two extending arms of the heating element 245 are extended vertically, and the ends of the extending arms extend out of the heating element 242 for power supply. By setting the heating member 245 to the U-shape, it is advantageous to reduce the space occupied by the heating member 245 compared to setting the heating member 245 to a spiral structure, thereby reducing the volume of the heat generating member 242, so that the steam engine 20 has a smaller volume and is lighter and more flexible to use. The extension arms, the water inlet channel 2423 and the air exhaust channel 2424 all extend vertically, so that heat generated by the extension arms can be fully contacted with fluid in the water inlet channel 2423 and the air exhaust channel 2424, and full heating is guaranteed.

Further, as shown in fig. 10 and 11, the two extension arms are located at two opposite ends of the heat generating member 242 along the first direction Y, the water inlet channel 2423 and the air outlet channel 2424 are located at two opposite ends of the heat generating member 242 along the second direction X, and the first direction Y and the second direction X are arranged at an included angle. In such an arrangement, the water inlet passage 2423, the air exhaust passage 2424 and the two extension arms are arranged alternately, and the two extension arms are closer to the water inlet passage 2423 and the air exhaust passage 2424, so as to improve the heating effect on the fluid therein. In this embodiment, the first direction Y is perpendicular to the second direction X.

In order to more fully heat the water within the cavity, grooves 2427 are provided between each extension arm and the adjacent exhaust channels 2424 and/or water inlet channels 2423, i.e., grooves 2427 are provided on at least one side of each extension arm.

In this embodiment, grooves 2427 are provided on both sides of each extension arm. As shown in fig. 11, a groove 2427 is provided between each extension arm and the adjacent water inlet passage 2423 and air outlet passage 2424, and four grooves 2427 are provided on the heat generating element 242. With the arrangement, the distance between the extension arm and the outer wall of the heating element 242 is shortened, so that water in the cavity can be fully heated; and grooves 2427 are formed on both sides of the water inlet passage 2423 and the air exhaust passage 2424, so that the thickness of the heat generating member 242 between the extension arms and the water inlet passage 2423 (the air exhaust passage 2424) can be reduced, and the water in the water inlet passage 2423 and the fluid in the air exhaust passage 2424 can be sufficiently heated.

Alternatively, the groove 2427 is an arc groove, and the depth of the arc groove varies with a certain gradient, so that the heating element 245 can be installed in the heating element 242 and the water inlet passage 2423 and the air exhaust passage 2424 can be formed on the basis of ensuring the concave depth to sufficiently heat the water in the cavity. Illustratively, the radius R of the circular arc groove is 7mm to 9mm, for example, the radius of the circular arc groove may be 8mm. Alternatively, the central angle a of the circular arc groove may be 65 degrees to 80 degrees, such as 66 degrees, 68 degrees, 70 degrees, 72 degrees, 74 degrees, 75 degrees, 76 degrees, or 78 degrees.

As shown in fig. 12, water enters the cavity through the upper end of the inlet passage 2423 and collects at the bottom end of the cavity under the force of gravity. Steam is generated by continuing to heat water in the cavity, and the steam enters the exhaust passage 2424 through the through hole on the heat generating member 242 to be exhausted through the air supply port at the top end of the exhaust passage 2424. Because the bottom of the cavity is provided with water, scale is easily generated in the use process of the heating pot 24, and the through hole is easily blocked, thereby influencing the steam supply.

In order to solve the above problem, in the present embodiment, two through holes are provided, that is, a first through hole 2428 and a second through hole 2429, and the second through hole 2429 is located above the first through hole 2428. The first through hole 2428 and the second through hole 2429 each serve to communicate the cavity with the exhaust passage 2424. With this arrangement, the first through hole 2428 is located downward as a main communication hole, and most of the steam enters the exhaust passage 2424 through the first through hole 2428. The second through hole 2429 serves as a spare through hole capable of securing a steam supply amount after the first through hole 2428 is clogged.

Further, the first through holes 2428 have a larger aperture than the second through holes 2429 to ensure that steam preferentially enters the vent passages 2424 through the lower first through holes 2428 and to ensure a flow path of gas in the vent passages 2424 to be sufficiently heated.

Optionally, a ratio of the cross-sectional area of the first throughbore 2428 to the cross-sectional area of the second throughbore 2429 is 1.5-3. For example, the area ratio of the first and second through

holes

2428 and 2429 may be 1.7, 1.9, 1.96, 2, 2.2, 2.5, 2.7, or 2.9.

Alternatively, the aperture of the first through-hole 2428 may be 5mm to 7mm, for example, 6mm; the second through hole 2429 may have a hole diameter of 2mm to 5mm, for example 3mm or 4mm.

It can be appreciated that the closer the first through holes 2428 to the bottom surface of the cavity is, the more easily the first through holes are blocked, and the farther away from the bottom surface of the cavity, the shorter the stroke of the gas flowing after entering the exhaust passages 2424, the insufficient heating time, and the problem of water spraying of the steam cleaning apparatus when in use are likely to occur. In general, in this embodiment, as shown in FIG. 13, the distance H of the first through-hole 2428 from the bottom surface of the cavity is 1/5-2/5 of the height of the cavity. This range can reduce the chance of the first through holes 2428 being clogged and ensure the stroke of the gas after entering the exhaust passage 2424 to ensure sufficient heating. Illustratively, the height H of the first through-hole 2428 from the cavity floor is 13mm-20mm, such as 14mm, 15mm, 16mm, 17mm, 18mm, or 19mm.

Optionally, the distance L of the second through hole 2429 from the cavity floor is 4/5-1 of the cavity height. In this range, the second through holes 2429 can be prevented from being clogged to ensure that the steam can be discharged after the first through holes 2428 are clogged. Illustratively, the height L of the second through-hole 2429 from the cavity floor is 45mm to 55mm, such as 46mm, 47mm, 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, or 54mm.

Further, in order to increase the contact area between the heat generating member 242 and the water in the cavity, a heating rib 2426 is further disposed on the circumferential outer wall of the heat generating member 242, and the heating rib 2426 is convexly disposed on the circumferential outer wall of the heat generating member 242, so that the surface area of the heat generating member 242 can be increased, and thus the heat exchange area between the water and the heat generating member 242 is increased.

In the present embodiment, the heating ribs 2426 are provided in two grooves 2427 adjacent to the air vent passages 2424. By utilizing the concave area of the groove 2427 to accommodate the heating rib 2426, the size of the heating element 242 can be reduced, and the heating pan 24 is small in size.

A plurality of heating ribs 2426 may be provided in the vertical direction in each groove 2427 adjacent to the vent passage 2424. When the water in the cavity is heated to generate steam, the steam flows upwards and can be blocked by the heating ribs 2426, and the retention time of the steam is prolonged, so that the heated time is prolonged, and the phenomenon of water spraying of the steam cleaning equipment is avoided.

In some embodiments, a heating rib 2426 may be disposed within each groove 2427.

In this embodiment, the heat generating member 242 is integrally formed, and may be formed by injection molding. The mold for injection molding the heating member 242 comprises a front mold, a rear mold, a side-drawing slide block of a molding hole groove and a thimble for demolding. After the heating element 242 is formed, the front mold and the rear mold are away from each other to open the cavity after the side-pulling slider is pulled out, the heating element 242 is located on the rear mold, and the heating element 242 needs to be ejected out of the rear mold through an ejector pin so as to realize demolding. The heat generating member 242 is provided with the grooves 2427, so that the wall thickness of part of the side walls of the water inlet passage 2423 and the air exhaust passage 2424 is thin, and the heat generating member is easy to deform under force and collapse during demoulding.

In order to solve the above problem, the rear mold forming heat generating member 242 is provided with a heating rib 2426 and one side surface of the air vent 2424, and the heating rib 2426 is provided with an abutting plane for contacting the ejector pin. During demolding, the ejector pins push the heating ribs 2426 to realize demolding of the heating piece 242, and the ejector pins cannot be directly contacted with the position with the thinner wall thickness of the exhaust channel 2424, so that deformation such as collapse of the heating piece 242 is avoided.

In order to ensure the demolding effect, the abutting plane is perpendicular to the pushing direction of the ejector pin, so that the force applied by the ejector pin to the heating rib 2426 is completely used for demolding the heating element 242, and the demolding effect is good.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A steam cleaning device, comprising:

a support mechanism (10) comprising a floor brush assembly (11);

the steam engine (20) is detachably arranged on the supporting mechanism (10), and the steam engine (20) is used for providing steam for the floor brush assembly (11);

the steamer (20) comprises a heating pan (24), wherein the heating pan (24) comprises a shell (241), a heating element (242) and a heating element (245) arranged in the heating element (242);

the shell (241) is sleeved outside at least part of the heating piece (242) and is arranged with at least part of the heating piece (242) at intervals to form a cavity;

a water inlet channel (2423) and an air exhaust channel (2424) are arranged in the heating element (242), the lower end of the water inlet channel (2423) is a water inlet, the upper end of the water inlet channel (2423) is communicated with the cavity, the lower end of the air exhaust channel (2424) is communicated with the cavity, and the upper end of the air exhaust channel (2424) is an air supply port;

the heating element (245) is U-shaped and is positioned between the water inlet channel (2423) and the air exhaust channel (2424), two extension arms of the heating element (245) vertically extend, the two extension arms are arranged along a first direction, the water inlet channel (2423) and the air exhaust channel (2424) are arranged along a second direction, and an included angle is formed between the first direction and the second direction;

the circumferential outer wall of the heating element (242) is provided with circular arc-shaped grooves (2427), the grooves (2427) are arranged between each extension arm and the adjacent water inlet channel (2423) and/or the air exhaust channel (2424), at least one groove (2427) extends downwards from the upper end of the water inlet channel (2423), so that at least part of fluid entering the cavity from the upper end of the water inlet channel (2423) enters the air exhaust channel (2424) through the grooves (2427).

2. The steam cleaning apparatus according to claim 1, wherein the heat generating member (242) integrally forms the water inlet passage (2423) and the air vent passage (2424), and the water inlet passage (2423) and the air vent passage (2424) each vertically extend.

3. The steam cleaning apparatus of claim 1, wherein the water inlet passage (2423) penetrates the heat generating member (242), and an upper end of the water inlet passage (2423) is spaced apart from a top surface of the housing (241);

the distance between the upper end of the water inlet channel (2423) and the top surface of the shell (241) is 0.5mm-1.5mm.

4. The steam cleaning device as recited in claim 1, characterized in that the cross-sectional area of the water inlet passage (2423) and/or the air outlet passage (2424) is gradually increased from bottom to top;

the width of the water inlet channel (2423) is 7-12 mm.

5. The steam cleaning device as claimed in any of claims 1 to 4, wherein the top of the circumferential side wall of the heat generating member (242) is provided with a notch (2425) communicating with the water inlet passage (2423);

the width of the notch (2425) is 2mm-3.5mm, and the height is 6mm-9mm.

6. A steam cleaning device according to claim 5, characterized in that the indentation (2425) is provided with at least two.

7. The steam cleaning apparatus according to any one of claims 1 to 4, wherein the heat generating member (242) includes:

the base (2421) is fixed with the shell (241), and a cavity is enclosed by the base (2421) and the shell (241);

the heating body (2422) is connected with the base (2421) and located in the cavity, the circumferential side wall of the heating body (2422) and the shell (241) are arranged at intervals, the heating element (245) is arranged in the heating body (2422), and the groove (2427) is arranged on the outer wall of the heating body (2422) so as to reduce the distance between the outer wall of the heating body (2422) and the heating element (245).

8. The steam cleaning device according to any one of claims 1 to 4, wherein the grooves (2427) are provided on both sides of the vent passage (2424), and heating ribs (2426) are provided in two grooves (2427) adjacent to the vent passage (2424) in a protruding manner.

9. The steam cleaning apparatus according to claim 8, wherein a plurality of the heating ribs (2426) are arrayed at intervals in a vertical direction in two of the grooves (2427) adjacent to the air vent passage (2424).

10. The steam cleaning apparatus of claim 8, wherein the heat generating member (242) is injection molded, a mold for injection molding the heat generating member (242) has ejector pins, and the heating rib (2426) has an abutting plane perpendicular to an ejecting direction of the ejector pins, the abutting plane abutting against the ejector pins.

11. A steam cleaning device according to any one of claims 1-4, characterized in that the radius of the groove (2427) is 7-9 mm.

12. The steam cleaning apparatus according to any one of claims 1 to 4, wherein a first through hole (2428) and a second through hole (2429) are provided on the heat generating member (242), the second through hole (2429) is located above the first through hole (2428), and the first through hole (2428) and the second through hole (2429) communicate the air vent passage (2424) and the cavity.

13. A steam cleaning device according to claim 12, characterized in that the aperture of the first through hole (2428) is larger than the aperture of the second through hole (2429);

the ratio of the cross-sectional area of the first through-hole (2428) to the cross-sectional area of the second through-hole (2429) is 1.5-3.

14. The steam cleaning apparatus according to claim 12, wherein a distance between the first through hole (2428) and the bottom surface of the cavity is 1/5-2/5 of a height of the heat generating part (242);

the distance between the second through hole (2429) and the bottom surface of the heating piece (242) is 4/5-1 of the height of the cavity.