Cleaning appliance

Abstract

The embodiment of the utility model discloses a cleaning appliance, which comprises a first shell, a second shell and a cleaning device, the heating piece is arranged in the first shell, a liquid inlet channel is formed between the liquid inlet and the heating piece, and the heating piece is used for heating liquid to form steam; the steam channel is formed in the first shell, one end of the steam channel communicates with the heating piece, and the other end of the steam channel communicates with the external environment; and the blocking structure is arranged in the liquid inlet channel, communicates with the liquid inlet channel and is used for blocking steam generated by the heating piece from being sprayed to the liquid inlet. By means of the arrangement, liquid can be conveyed to the liquid inlet, enters the heating piece along the liquid inlet channel and is heated and evaporated by the heating piece to form steam, and the steam is output to the external environment along the steam channel to be cleaned. When the cleaning appliance is in a hot state and liquid is supplemented to the liquid inlet, steam is blocked by the blocking structure, the situation that steam is sprayed out of the liquid inlet to scald a user is reduced, and potential safety hazards are removed.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of cleaning appliances, and in particular, to a cleaning appliance. Background Art

[0002] The cleaning appliance can use high-temperature steam to clean the surface of the area to be cleaned, and is widely used to clean the surfaces such as floors, kitchens, bathrooms and windows in the home, and can effectively remove stains and kill bacteria. However, when the cleaning appliance is in a hot state, adding water will cause the steam to spray towards the water inlet, which is likely to scald the user and there is a risk in use. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To this end, the utility model provides a cleaning appliance.

[0005] In view of this, according to the embodiments of the present application, a cleaning appliance is proposed, including:

[0006] A first housing, the first housing is formed with a liquid inlet;

[0007] A heating element, disposed in the first housing, for heating a liquid to form steam;

[0008] Wherein, a cavity structure is formed between the liquid inlet and the heating element, the first housing is provided with a steam outlet, and the cavity structure communicates with the steam outlet;

[0009] A blocking structure, disposed in the cavity structure, the blocking structure is used to block the steam generated by the heating element from spraying towards the liquid inlet, and the liquid in the cavity structure can flow at the blocking structure.

[0010] In a feasible implementation manner, the cleaning appliance further includes:

[0011] A second housing, located in the cavity structure;

[0012] A third housing, covering the second housing, the third housing and the second housing cooperate to form a heating cavity for carrying a liquid, and the heating element is disposed at one end of the second housing away from the third housing;

[0013] Wherein, the third housing is provided with a flared opening at one end facing the liquid inlet.

[0014] In a feasible implementation manner, the blocking structure is disposed in the second housing near the flared opening.

[0015] In a feasible implementation manner, along the extending direction of the above cavity structure, the above blocking structure is provided with a plurality of first through holes.

[0016] In a feasible implementation manner, along the extending direction of the above cavity structure, the above blocking structure is provided with a second through hole, and the aperture of the above second through hole is larger than that of the above first through hole.

[0017] In a feasible implementation manner, along the extending direction of the above cavity structure, the contour projection of the above liquid inlet is located within the contour projection of the above blocking structure.

[0018] In a feasible implementation manner, a gap is formed between the side portion of the above blocking structure and the inner side wall of the above third housing.

[0019] In a feasible implementation manner, along the horizontal direction, the size of the above gap is less than half of the size of the above blocking structure.

[0020] In a feasible implementation manner, the outer contour of the above blocking structure abuts against the inner side wall of the above third housing.

[0021] In a feasible implementation manner, the above cleaning appliance further includes:

[0022] A fixing member for fixing the above blocking structure to the above first housing.

[0023] In a feasible implementation manner, the above blocking structure includes:

[0024] A plate body, the above first through hole and the above second through hole are provided on the above plate body, and the above second through hole is near the edge of the above plate body;

[0025] A connecting plate sleeved on the above plate body, and the above fixing member is connected to the above connecting plate.

[0026] In a feasible implementation manner, the above plate body is laid flat in the above cavity structure; or

[0027] The middle part of the above plate body bulges in a direction away from the above heating member; or

[0028] The middle part of the above plate body is recessed in a direction towards the above heating member.

[0029] In a feasible implementation manner, the above blocking structure further includes:

[0030] A surrounding plate surrounding one end of the above plate body facing the above liquid inlet, and the above surrounding plate is provided with a plurality of third through holes.

[0031] In a feasible implementation manner, the above cleaning appliance further includes:

[0032] A seal is provided between the second housing and the third housing.

[0033] In a feasible implementation, the cleaning appliance further includes:

[0034] A support member is provided inside the first housing, and the second housing is disposed on the support member.

[0035] In a feasible implementation, the cleaning appliance further includes:

[0036] A snap-action thermostat is electrically connected to the heating element and is used to detect the temperature inside the heating cavity. When the temperature inside the heating cavity is greater than or equal to a preset upper temperature limit, the snap-action thermostat controls the heating element to stop heating.

[0037] In a feasible implementation, the cleaning appliance further includes:

[0038] A nozzle is provided on the first housing and is communicated with the steam outlet.

[0039] In a feasible implementation, the cleaning appliance further includes:

[0040] A safety valve cover is provided on the liquid inlet. Wherein, when the steam pressure in the cavity structure is greater than or equal to a preset pressure, the safety valve cover is in a locked state.

[0041] In a feasible implementation, the cleaning appliance further includes: a steam valve, which is provided inside the first housing;

[0042] An operating member is provided on the first housing and is connected to the steam valve;

[0043] Wherein, when the operating member is in the first position, the steam valve is opened, and the steam in the cavity structure is discharged through the nozzle;

[0044] When the operating member is in the second position, the steam valve is closed.

[0045] In a feasible implementation, the cleaning appliance further includes:

[0046] A locking member is connected to the operating member. Wherein, when the locking member is in a locked state, the operating member is locked in the second position;

[0047] When the locking member is in an unlocked state, the operating member can be switched between the first position and the second position.

[0048] Compared with the prior art, the utility model has at least the following beneficial effects: The cleaning appliance provided in the embodiments of the present application is provided with a first housing, a heating element, and a blocking structure. Among them, the first housing is formed with a liquid inlet, the heating element can be arranged in the first housing, and a cavity structure is formed between the liquid inlet and the heating element in the first housing. The first housing can be provided with a steam outlet, and the steam outlet is communicated with the cavity structure. With such a setting, liquid can be conveyed to the liquid inlet, the liquid is conveyed along the cavity structure to the heating element, after being heated by the heating element to generate steam, the steam is conveyed along the cavity structure to the steam outlet, and is sprayed onto the surface of the object to be cleaned through the steam outlet. Stains can be effectively removed and bacteria can be killed through the high-temperature steam, ensuring the cleaning effect. The cleaning appliance can also be provided with a blocking structure. Specifically, the blocking structure can be arranged in the cavity structure, the liquid in the cavity structure can flow at the blocking structure, and the blocking structure can block the steam generated by the heater from spraying towards the liquid inlet. With such a setting, when the cleaning appliance is in a hot state and liquid is replenished from the liquid inlet, the liquid is heated to form steam, and the steam is blocked by the blocking structure, reducing the spraying of steam and / or liquid from the liquid inlet and scalding the user, reducing the use safety risk, and the user does not need to wait for the cleaning appliance to completely cool down before adding liquid, improving the cleaning efficiency and the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0050] Figure 1 Schematic structural diagram of a cleaning appliance according to an embodiment provided by the present application;

[0051] Figure 2 is Figure 1 Schematic structural diagram of the blocking structure of the cleaning appliance shown;

[0052] Figure 3 Schematic structural diagram of another cleaning appliance according to an embodiment provided by the present application;

[0053] Figure 4 is Figure 3 Schematic structural diagram of the blocking structure of the cleaning appliance shown;

[0054] Figure 5 Schematic structural diagram of still another cleaning appliance according to an embodiment provided by the present application.

[0055] Among them, Figures 1 to 5 The corresponding relationship between the reference numerals in the drawings and the component names is:

[0056] 100 Cleaning appliance, 110 First housing, 111 Liquid inlet, 112 Handle, 120 Heating element, 121 Second housing, 122 Third housing, 130 Blocking structure, 131 Plate body, 132 First through hole, 133 Second through hole, 134 Connecting plate, 135 Enclosing plate, 136 Third through hole, 137 Fixing member, 140 Support member, 150 Snap-acting thermostat, 160 Nozzle, 170 Safety valve cover, 180 Steam valve, 190 Operating member, 191 Locking member. Detailed implementation manners

[0057] To better understand the above technical solution, the technical solution of the embodiments of the present application will be described in detail below through the accompanying drawings and specific embodiments. It should be understood that the specific features in the embodiments of the present application and the embodiments are detailed descriptions of the technical solution of the embodiments of the present application, rather than limitations on the technical solution of the present application. Without conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0058] As Figures 1 to 5 shown, according to an embodiment of the present application, a cleaning appliance 100 is provided, including: a first housing 110, the first housing 110 is formed with a liquid inlet 111; a heating element 120, disposed in the first housing 110, for heating a liquid to form steam; wherein, a cavity structure is formed between the liquid inlet 111 and the heating element 120, the first housing 110 is provided with a steam outlet, and the cavity structure communicates with the steam outlet; a blocking structure 130, disposed in the cavity structure, the blocking structure 130 is used to block the steam generated by the heater from spraying towards the liquid inlet 111, and the liquid in the cavity structure can flow at the blocking structure 130.

[0059] It can be understood that the cleaning appliance 100 provided by the embodiments of the present application is provided with a first housing 110, a heating element 120, and a blocking structure 130. Among them, the first housing 110 is formed with a liquid inlet 111, the heating element 120 can be arranged in the first housing 110, and a cavity structure is formed between the liquid inlet 111 and the heating element 120 in the first housing 110. The first housing 110 can be provided with a steam outlet, and the steam outlet is communicated with the cavity structure. With such a setting, liquid can be conveyed to the liquid inlet 111, the liquid is conveyed along the cavity structure to the heating element 120, after being heated by the heating element 120 to generate steam, the steam is conveyed along the cavity structure to the steam outlet, and is sprayed onto the surface of the object to be cleaned through the steam outlet. Stains can be effectively removed and bacteria can be killed through the high-temperature steam, ensuring the cleaning effect. The cleaning appliance 100 can also be provided with a blocking structure 130. Specifically, the blocking structure 130 can be arranged in the cavity structure, the liquid in the cavity structure can flow through the blocking structure 130, and the blocking structure 130 can block the steam generated by the heater from spraying towards the liquid inlet 111. With such a setting, when the cleaning appliance 100 is in a hot state and liquid is replenished from the liquid inlet 111, the liquid is heated to form steam, and the steam is blocked by the blocking structure 130, reducing the spraying of steam and / or liquid from the liquid inlet 111 and scalding the user, reducing the use safety risk. Moreover, the user does not need to wait for the cleaning appliance 100 to completely cool down before adding liquid, improving the cleaning efficiency and the user experience.

[0060] It should be noted that after the liquid is completely conveyed from the liquid inlet 111 to the heating element 120, the liquid inlet 111 is in a closed state. The steam generated by heating the liquid by the heating element 120 can be conveyed to the cavity structure. Since the liquid inlet 111 is closed, the steam can only be conveyed to the external environment from the steam outlet. Due to the relatively high pressure of the steam, when the liquid inlet 111 is opened to replenish liquid, the steam will spray out from the liquid inlet 111. Therefore, part of the steam in the cavity structure can be discharged through the steam outlet first, so that the steam pressure in the cavity structure is within a safe range. Subsequently, the liquid inlet 111 can be opened to replenish liquid to the heating element 120. Under the action of the blocking structure 130, the liquid can be conveyed to the heating element 120 through the blocking structure 130 for heating. The generated steam is blocked by the blocking structure 130 and cannot spray out from the liquid inlet 111. And the low-temperature liquid can exchange heat with the high-temperature steam at the blocking structure 130, causing the steam to rapidly cool down and condensing the steam into water droplets that fall back to the heating element 120 again.

[0061] Exemplarily, a handle 112 can be arranged on one side of the first housing 110 relative to the steam outlet, so as to facilitate the user to grab the handle 112 to operate the cleaning appliance 100 for cleaning operations and improve the operability.

[0062] In some examples, such as Figures 1 to 5As shown, the cleaning appliance 100 further includes: a second housing 121 located in the cavity structure; a third housing 122 covering the second housing 121. The third housing 122 and the second housing 121 cooperate to form a heating cavity for holding liquid. The heating element 120 is disposed at one end of the second housing 121 away from the third housing 122. Wherein, an end of the third housing 122 facing the liquid inlet 111 is provided with a flared opening.

[0063] It can be understood that the cleaning appliance 100 may also be provided with a second housing 121 and a third housing 122. Among them, the second housing 121 may be located within the cavity structure, and the open end of the second housing 121 faces the liquid inlet 111. The third housing 122 covers the open end of the second housing 121, and the third housing 122 and the second housing 121 are combined to form a heating cavity, which can be used to hold the liquid transported from the liquid inlet 111. The heating element 120 may be disposed at one end of the second housing 121 away from the third housing 122, and the liquid in the heating cavity is heated by the heating element 120 to generate steam.

[0064] Exemplarily, the heating element 120 may be wound around the bottom of the second housing 121, or the heating element 120 may be laid on the bottom and side walls of the second housing 121 to increase the contact area with the second housing 121 and improve the heating efficiency, so as to quickly turn the liquid into steam. The heating element 120 may be a heating tube.

[0065] It can be understood that an end of the third housing 122 facing the liquid inlet 111 may be provided with a flared opening, and along the liquid transport direction, the contour projection of the liquid inlet 111 falls within the contour projection of the flared opening to ensure that the liquid can fall into the heating cavity.

[0066] In some examples, as Figures 1 to 5 shown, the blocking structure 130 is disposed in the second housing 121 near the flared opening.

[0067] It can be understood that the blocking structure 130 may be located within the second housing 121 and is disposed near the flared opening. On the one hand, it ensures that the steam has more flow space and extends the steam path. When the steam flows to the blocking structure 130, the temperature will decrease, and part of the steam will form water droplets and drip into the liquid. On the other hand, the area of the flared opening is relatively large, so that the area of the blocking structure 130 can be relatively large to ensure the blocking effect on the steam, and to prevent the blocking structure 130 from being too close to the liquid inlet 111, where liquid droplets are likely to splash when dripping onto the blocking structure 130, and since the first housing 110 at the liquid inlet 111 is constricted, the steam flow rate is relatively fast, which is likely to cause the steam to spray out of the liquid inlet 111 and scald the user. With such a setting, the position of the blocking structure 130 can be more reasonable, and the effect of reducing the steam spraying out of the liquid inlet 111 is better.

[0068] In some examples, such as Figures 1 to 5 shown, along the extending direction of the above cavity structure, a plurality of first through holes 132 are formed in the above blocking structure 130.

[0069] It can be understood that, along the extending direction of the cavity structure, a plurality of first through holes 132 may be formed in the blocking structure 130, so that the liquid can pass through the first through holes 132 of the blocking structure 130 and be conveyed into the heating cavity. The aperture of the first through hole 132 is relatively small and can cover the blocking structure 130. To ensure that there is sufficient conduction area, so that the liquid can pass through more smoothly and ensure the liquid inlet efficiency. At the same time, when the liquid inlet 111 is closed for cleaning operations, the steam can pass through the first through holes 132 and be ejected from the steam outlet. When liquid needs to be added during the cleaning operation, the liquid inlet 111 can be opened, and liquid is conveyed to the liquid inlet 111. The liquid passes through the first through holes 132 and enters the heating cavity. At the same time, due to the action of surface tension, a liquid film is formed at the first through holes 132, and heat exchange is carried out with the blocking structure 130 to reduce the temperature of the blocking structure 130 and form a low-temperature layer. When the steam flows to the blocking structure 130, the steam will be affected by the blocking structure 130, reducing the steam flow rate. At the same time, when the steam contacts the blocking structure 130, heat exchange is carried out with the low-temperature blocking structure 130 and the liquid film, so as to quickly reduce the steam temperature at the blocking structure 130, causing the steam to condense into water droplets and drip into the heating cavity. Reducing the steam ejected from the liquid inlet 111, scalding the user, reducing the use safety risk, and the user does not need to wait for the cleaning appliance 100 to completely cool down before adding liquid, improving the cleaning efficiency and the user experience.

[0070] It should be noted that since the liquid is blocked by the blocking structure 130, scattered by the first through holes 132 and falls into the heating cavity, the dripping speed of the liquid can be reduced, thereby avoiding splashing due to too fast liquid speed. At the same time, the rising speed of the steam will be reduced by the blocking of the blocking structure 130, thereby reducing the thrust of the steam on the liquid, thereby reducing the liquid splashing to the liquid inlet 111, ensuring smooth liquid replenishment, and improving the user experience.

[0071] In some examples, such as Figures 1 to 5 shown, along the extending direction of the above cavity structure, the above blocking structure 130 is provided with second through holes 133, and the aperture of the above second through holes 133 is larger than the aperture of the above first through holes 132.

[0072] It can be understood that, considering that the fine first through-holes 132 are evenly distributed on the blocking structure 130 to break up the liquid into fine and even water droplets, and the water droplets converge at the side of the blocking structure 130 facing the heating member 120 and then drip into the heating cavity, the blocking structure 130 reduces the liquid flow rate and will affect the efficiency of liquid delivery to the heating cavity. Therefore, along the conduction direction of the liquid inlet channel, the blocking structure 130 may also be provided with second through-holes 133, and the aperture of the second through-holes 133 is slightly larger than that of the first through-holes 132. To increase the speed of the liquid passing through the blocking structure 130 and ensure the efficiency of replenishing the liquid. At the same time, considering that when the cleaning appliance 100 is used for a long time, scale will form at the blocking structure 130. Since the aperture of the first through-holes 132 is small, it is easy to cause the first through-holes 132 to be blocked, resulting in difficulty for steam to spray out from the first through-holes 132 during the cleaning operation, reducing the steam flow rate and affecting the cleaning effect. The aperture of the second through-holes 133 is large, and steam can flow through the second through-holes 133, ensuring that the steam flow rate is sufficient during the cleaning operation and ensuring the cleaning effect.

[0073] It should be noted that the number of the second through-holes 133 needs to be set to be small, for example, only one is set, to avoid the aperture of the through-hole being too large and greatly increasing the steam flow rate, resulting in steam spraying out of the liquid inlet 111 and scalding the user. And the aperture of the second through-holes 133 cannot be set too large to avoid the thrust of the steam backspray on the liquid being too large and causing the liquid to splash.

[0074] In some examples, as Figures 1 to 5 shown, along the extension direction of the above cavity structure, the contour projection of the above liquid inlet 111 is located within the contour projection of the above blocking structure 130.

[0075] It can be understood that the steam in the heating cavity will spray out from the liquid inlet 111. By setting the contour area of the liquid inlet 111 to be smaller than the contour area of the blocking structure 130, when the steam flows to the blocking structure 130, most of the steam will be blocked by the blocking structure 130, reducing the amount of steam spraying out from the liquid inlet 111 and improving the reliability.

[0076] In some examples, as Figures 1 to 5 shown, a gap is formed between the side of the above blocking structure 130 and the inner side wall of the above third housing 122.

[0077] It can be understood that a gap may be formed between the side of the blocking structure 130 and the inner side wall of the third housing 122. When the liquid inlet 111 is closed and the cleaning operation is carried out, the steam can pass through the first through-holes 132 and the gap and flow to the steam outlet to spray out. To ensure the steam flow rate during the cleaning operation. Ensure the steam flow rate sprayed out from the steam outlet and improve the steam cleaning effect.

[0078] It should be noted that when the cleaning appliance 100 is used for a long time, scale will form at the blocking structure 130, blocking the first through hole 132, making it difficult for steam to spray out from the first through hole 132 and reducing the steam flow rate. By forming a gap between the side of the blocking structure 130 and the inner side wall of the third housing 122, it is ensured that steam can flow through the gap, increasing the steam flow rate, ensuring the steam flow during the cleaning operation, and improving reliability.

[0079] In some examples, along the horizontal direction, the size of the above-mentioned gap is less than half of the size of the above-mentioned blocking structure 130.

[0080] It can be understood that along the horizontal direction, if the size of the gap is too large, it will affect the blocking effect of the blocking structure 130 on steam when adding liquid during the cleaning operation. Therefore, the size of the gap is set to be less than half of the size of the blocking structure 130. While ensuring the steam flow at the gap, the blocking effect of the blocking structure 130 on steam is maintained.

[0081] In some examples, as Figure 5 shown, the outer contour of the above-mentioned blocking structure 130 abuts against the inner side wall of the above-mentioned third housing 122.

[0082] It can be understood that the outer contour of the blocking structure 130 can abut against the inner side wall of the third housing 122. During the cleaning operation, steam can pass through the first through hole 132 and spray out from the steam outlet. When adding liquid during the cleaning operation, the horizontal area of the blocking structure 130 reaches the maximum to block steam from spraying towards the liquid inlet 111 as much as possible, improving reliability and reducing the risk of scalding the user by steam spraying out from the liquid inlet 111.

[0083] In some examples, as Figure 1 、 Figure 3 and Figure 5 shown, the above-mentioned cleaning appliance 100 further includes: a fixing member 137 for fixing the above-mentioned blocking structure 130 to the above-mentioned first housing 110.

[0084] It can be understood that the cleaning appliance 100 can also be provided with a fixing member 137. By fixing the blocking structure 130 to the first housing 110 with the fixing member 137, it is avoided that during the use of the cleaning appliance 100, due to moving the cleaning appliance 100 and the impact of steam on the blocking structure 130, the blocking structure 130 shakes and is misaligned, affecting the blocking effect of steam spraying, and improving reliability.

[0085] Exemplarily, the fixing member 137 can be selected as a rod body. One end of the rod body can be hooked at the flared opening, and the other end of the rod body can be connected to the blocking structure 130 to hang the blocking structure 130 at the flared opening.

[0086] In some examples, as Figures 1 to 5As shown, the above-mentioned blocking structure 130 includes: a plate body 131, the first through hole 132 and the second through hole 133 are provided on the plate body 131, and the second through hole 133 is close to the edge of the plate body 131; a connecting plate 134, sleeved on the plate body 131, and the fixing member 137 is connected to the connecting plate 134.

[0087] It can be understood that the blocking structure 130 can be provided with a plate body 131 and a connecting plate 134. Among them, the plate body 131 can be horizontally arranged at the flared opening, and the connecting plate 134 can be sleeved on the plate body 131. By fixing the connecting plate 134 with the fixing member 137, the blocking structure 130 is fixed at the flared opening. The plate body 131 can be provided with a first through hole 132 and a second through hole 133. The first through holes 132 can be arranged at intervals on the plate body 131. Considering that when adding liquid during the cleaning operation, the steam first flows to the middle of the plate body 131, the setting position of the second through hole 133 is avoided from the middle of the plate body 131 to ensure that when adding liquid, the steam is blocked from spraying towards the liquid inlet 111.

[0088] Exemplarily, along the extending direction of the cavity structure, the contour of the blocking structure 130 is circular, the main body of the connecting plate 134 is a circular ring, sleeved on the blocking structure 130, and three lugs can be provided. The connecting plate 134 is axially symmetrically arranged with the diameter of the blocking structure 130 as the axis of symmetry. The midline of one of the lugs coincides with the axis of symmetry, and the other two lugs are respectively located on both sides of the axis of symmetry.

[0089] Exemplarily, the contour of the blocking structure 130 is circular, the connecting plate 134 is a circular ring, sleeved on the blocking structure 130. The connecting plate 134 can be provided with three connecting holes, and the three connecting holes are axially symmetrically arranged with the diameter of the blocking structure 130 as the axis of symmetry. The midline of one of the connecting holes coincides with the axis of symmetry, and the other two lugs are respectively located on both sides of the axis of symmetry. The fixing member 137 can be connected to the connecting plate 134 through the connecting holes.

[0090] In some examples, as Figures 1 to 5 shown, the above-mentioned plate body 131 is laid flat in the cavity structure; or the middle part of the plate body 131 bulges in the direction away from the heating member 120; or the middle part of the plate body 131 is recessed in the direction towards the heating member 120.

[0091] It can be understood that, along the extending direction of the cavity structure, the shape of the blocking structure 130 can be various according to actual requirements and dimensions. The blocking structure 130 can be laid flat in the cavity structure, or the blocking structure 130 can be arranged in an arch shape in the cavity structure. Specifically, the middle position of the blocking structure 130 can protrude in the direction away from the heating element 120, so as to shorten the distance between the liquid inlet 111 and the blocking structure 130, and increase the distance that the steam generated by the heating element 120 reaches the blocking structure 130. Or the middle position of the blocking structure 130 can be recessed in the direction towards the heating element 120, so as to increase the distance between the liquid inlet 111 and the blocking structure 130, and shorten the distance that the steam generated by the heating element 120 reaches the blocking structure 130. By adjusting the shape of the blocking structure 130, the contact area between the steam and the blocking structure 130, as well as the time for the steam to reach the blocking structure 130, can be changed, so as to adjust the heat exchange efficiency between the steam and the liquid at the blocking structure 130, as well as the flow rates of the liquid and the blocking structure 130.

[0092] In some examples, such as Figure 3 and Figure 4 shown, the above-mentioned cleaning appliance 100 further includes: a surrounding plate 135, which is disposed around one end of the above-mentioned plate body 131 facing the above-mentioned liquid inlet 111, and a plurality of third through holes 136 are formed in the surrounding plate 135.

[0093] It can be understood that the cleaning appliance 100 can also be provided with a surrounding plate 135. Specifically, the surrounding plate 135 is disposed around the periphery of the plate body 131 along the extending direction of the cavity structure, and the surrounding plate 135 extends in the direction away from the heating element 120. On the surrounding plate 135, third through holes 136 are formed along the radial direction of the plate body 131, and the third through holes 136 can be arranged in an array. By providing the surrounding plate 135, liquid splashing from the periphery of the blocking structure 130 can be blocked, and the liquid can flow from the third through holes 136 to the heating element 120. The liquid can be separated into fine droplets by the first through holes 132 and the third through holes 136, so as to increase the contact area between the liquid and the steam, thereby improving the heat exchange efficiency with the steam, enabling the steam near the blocking structure 130 to be quickly condensed into water droplets, and improving the effect of blocking the steam from spraying towards the liquid inlet 111. And the connecting plate 134 can be connected to one end of the surrounding plate 135 away from the blocking structure 130, and the connecting plate 134 is fixed in the liquid inlet passage by a fixing member 137, so as to fix the surrounding plate 135 and the blocking structure 130 in the liquid inlet passage.

[0094] Exemplarily, the surrounding plate 135 and the blocking structure 130 can be an integral structure, and can be made of stainless steel material, with good high-temperature resistance and corrosion resistance, and are prepared by a stamping process.

[0095] In some examples, the above-mentioned cleaning appliance 100 further includes: a sealing member, which is disposed between the above-mentioned second housing 121 and the above-mentioned third housing 122.

[0096] It is understandable that the heating member 120 may also be provided with a seal. Specifically, the seal may be provided at the connection between the second housing 121 and the third housing 122 to prevent the liquid in the heating cavity from leaking between the second housing 121 and the third housing 122 after exceeding the height of the second housing 121, thereby improving reliability.

[0097] In some examples, such as Figure 1 , Figure 3 and Figure 5 shown, the cleaning appliance 100 further includes: a support member 140 disposed within the first housing 110, and the second housing 121 is disposed on the support member 140.

[0098] It is understandable that the cleaning appliance 100 is also provided with a support member 140. Specifically, the support member 140 may be disposed within the first housing 110 and near the bottom of the first housing 110. The second housing 121 may be mounted on the support member 140, and the second housing 121 is supported by the support member 140 to ensure the stable positions of the second housing 121 and the third housing 122, reduce the shaking of the second housing 121 and the third housing 122 when the user uses the cleaning appliance 100, and improve reliability.

[0099] Exemplarily, the support member 140 may be fixed to the inner bottom wall of the first housing 110 by means of bolts.

[0100] In some examples, such as Figure 1 , Figure 3 and Figure 5 shown, the cleaning appliance 100 further includes: a nozzle 160 disposed on the first housing 110 and communicating with the steam outlet.

[0101] It is understandable that the cleaning appliance 100 may also be provided with a nozzle 160. Specifically, the nozzle 160 may be connected to the first housing 110 and communicate with the steam outlet. The nozzle 160 guides the steam in the cavity structure to spray out into the external environment, extends the steam spraying channel, reduces the amplitude of the user's movement, and can spray the high-temperature steam onto the surface of the object to be cleaned to effectively remove stains and kill bacteria, ensuring the cleaning effect. And the channel of the nozzle 160 is relatively narrow, so that the steam ejected through the nozzle 160 converges, extends the steam spraying distance, avoids the steam from diffusing and being unable to be effectively concentrated on the stains on the surface of the object to be cleaned, and improves the cleaning effect.

[0102] It should be noted that the nozzle 160 is detachably disposed on the housing, and there are various styles of the nozzle 160 to adapt to various surfaces of the objects to be cleaned. Exemplarily, the nozzle 160 may be provided with an extended rotatable nozzle, a bent nozzle, a door and window nozzle, etc.

[0103] In some examples, such as Figure 1 , Figure 3 and Figure 5 shown, the above-mentioned cleaning appliance 100 further includes: a snap-action thermostat 150, electrically connected to the above-mentioned heating element 120, for detecting the temperature inside the above-mentioned heating cavity. When the temperature inside the above-mentioned heating cavity is greater than or equal to the preset temperature upper limit, the above-mentioned snap-action thermostat 150 controls the above-mentioned heating element 120 to stop heating.

[0104] It can be understood that the cleaning appliance 100 may also be provided with a snap-action thermostat 150. Specifically, the snap-action thermostat 150 is electrically connected to the heating element 120, and the snap-action thermostat 150 can detect the temperature inside the heating cavity. During the process of the heating element 120 heating the liquid in the heating cavity, when the snap-action thermostat 150 detects that the temperature inside the heating cavity is within the preset temperature range, the snap-action thermostat 150 is in a conducting state, and the heating element 120 maintains the heating state. When the snap-action thermostat 150 detects that the temperature inside the heating cavity is greater than or equal to the preset temperature upper limit, the snap-action thermostat 150 disconnects, so that the heating element 120 stops heating. This avoids the temperature in the heating cavity from being too high, the steam temperature from being too high, reduces the risk of scalding, and improves reliability.

[0105] In some examples, such as Figure 1 , Figure 3 and Figure 5 shown, the above-mentioned cleaning appliance 100 further includes: a safety valve cover 170, covering the above-mentioned liquid inlet 111, wherein when the steam pressure in the above-mentioned liquid inlet passage is greater than or equal to the preset pressure, the above-mentioned safety valve cover 170 is in a locked state.

[0106] It can be understood that the cleaning appliance 100 may also be provided with a safety valve cover 170. Specifically, the safety valve cover 170 can be covered on the liquid inlet 111 and can adjust its working state according to the steam pressure in the liquid inlet passage. Specifically, during the preparation work, the safety valve cover 170 can be opened, and a funnel can be used or liquid can be directly added to the heating element 120 from the liquid inlet 111. After covering the safety valve, the heating element 120 is started to heat the liquid in the heating cavity to generate steam. The steam can flow in the cavity structure and flow to the steam outlet to be ejected from the nozzle 160. If the steam pressure in the cavity structure is greater than or equal to the preset pressure, the safety valve cover 170 is locked to prevent the steam from pushing open the safety valve and ejecting from the liquid inlet 111, scalding the user, thus improving safety. During the cleaning process, if the liquid in the heating element 120 is less and needs to be replenished, some steam in the cavity structure can be discharged through the nozzle 160 first to reduce the steam pressure in the cavity structure to within the preset pressure range, and the safety valve is opened so that the user can remove the safety valve and open the liquid inlet 111. The user can replenish the liquid through the liquid inlet 111. Under the action of the blocking structure 130, while ensuring that the liquid is smoothly replenished into the heating cavity, the steam is prevented from spraying towards the liquid inlet 111, and liquid splashing is reduced, ensuring the safety and reliability of liquid replenishment.

[0107] In some examples, such as Figure 1 , Figure 3 and Figure 5 shown, the above-mentioned cleaning appliance 100 further includes: a steam valve 180, arranged in the above-mentioned first housing 110; an operating member 190, arranged on the above-mentioned housing and connected to the above-mentioned steam valve 180; wherein, when the above-mentioned operating member 190 is in the first position, the above-mentioned steam valve 180 is opened, and the steam in the above-mentioned cavity structure is discharged through the above-mentioned nozzle 160; when the above-mentioned operating member 190 is in the second position, the above-mentioned steam valve 180 is closed.

[0108] It can be understood that the cleaning appliance 100 may also be provided with a steam valve 180 and an operating member 190. Among them, the steam valve 180 can be arranged in the first housing 110 to control the on or off of the steam passage, and the operating member 190 is arranged on the housing and connected to the steam valve 180 to control the state of the steam valve 180. Specifically, the operating member 190 can be provided with a first position and a second position, corresponding to the on state and the off state of the steam valve 180 respectively. After the heating element 120 heats the liquid to generate steam, the user can control the operating member 190 to be in the first position to open the steam valve 180, so that the steam in the cavity structure can be ejected through the nozzle 160 to clean the surface of the object to be cleaned. If it is necessary to pause midway or after use, the operating member 190 can be controlled to be in the second position to close the steam valve 180, and the steam in the cavity structure cannot be ejected from the nozzle 160.

[0109] It should be noted that the operating member 190 can be arranged on the side of the first housing 110 away from the nozzle 160 according to the user's usage habit, and can be located above the handle 112, so as to facilitate the user's one-handed operation and improve the operation simplicity.

[0110] Exemplarily, the operating member 190 can be selected as a push switch, so that when the user holds the handle 112, the operating member 190 can be pushed to the first position or the second position. Or a pressing member can be selected, so that when the user holds the handle 112, the operating member 190 can be pressed to be in the first position or the second position.

[0111] In some examples, such as Figure 1 、 Figure 3 and Figure 5 as shown, the cleaning appliance 100 further includes: a locking member 191, which is connected to the operating member 190. Wherein, when the locking member 191 is in the locked state, the operating member 190 is locked in the second position; when the locking member 191 is in the unlocked state, the operating member 190 can be switched between the first position and the second position.

[0112] It can be understood that the cleaning appliance 100 can also be provided with a locking member 191. Specifically, the locking member 191 can be connected to the operating member 190 to lock the operating member 190. Specifically, when the locking member 191 is in the locked state, the operating member 190 is locked in the second position, and the steam in the cavity structure cannot be ejected from the nozzle 160. When the locking member 191 is in the unlocked state, the operating member 190 can be switched from the second position to the first position, so that the steam in the cavity structure can be ejected from the nozzle 160. Or switched from the first position to the second position. By providing the locking member 191, the user's accidental operation, resulting in steam scalding the user, is reduced, and the reliability and safety are improved.

[0113] Exemplarily, when the operating member 190 is a push switch, the locking member 191 being in the locked state can prevent the push switch from being pushed from the second position to the first position.

[0114] Exemplarily, both the operating member 190 and the locking member 191 can be electric control switches, for example, both are touch buttons. A touch panel can be arranged above the handle 112 to display the operating member 190 and the locking member 191. When touching the touch panel, the locking mark of the locking member 191 can flash, and click on the locking mark to unlock the locking member 191. Click on the button of the operating member 190, and the steam in the cavity structure can be ejected from the nozzle 160. Click on the button of the operating member 190 again, and the steam in the cavity structure cannot be ejected from the nozzle 160.

[0115] In the present utility model, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "joined" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0116] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0117] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0118] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cleaning tool, characterized in that: include: a first shell, wherein the first shell is formed with a liquid inlet; A heating element, disposed in the first shell, for heating the liquid to form steam; Wherein, a cavity structure is formed between the liquid inlet and the heating element, the first shell is provided with a steam outlet, and the cavity structure is connected to the steam outlet; A blocking structure is arranged in the cavity structure, and is used to block the steam generated by the heating element from spraying toward the liquid inlet, and the liquid in the cavity structure can flow at the blocking structure.

2. The cleaning device according to claim 1, characterized in that: Also includes: A second shell is located in the cavity structure; A third shell is covered on the second shell, the third shell and the second shell cooperate to form a heating cavity for carrying liquid, and the heating element is arranged at one end of the second shell away from the third shell; Wherein, the third shell has an expansion opening at one end facing the liquid inlet.

3. The cleaning device according to claim 2, characterized in that: The blocking structure is arranged in the second shell body near the expansion opening.

4. The cleaning device according to claim 2, characterized in that: The blocking structure is provided with a plurality of first through holes along an extending direction of the cavity structure.

5. The cleaning device according to claim 4, characterized in that: The blocking structure is provided with a second through hole along the extension direction of the cavity structure, and the aperture of the second through hole is larger than the aperture of the first through hole.

6. The cleaning device according to claim 5, characterized in that: Along the extension direction of the cavity structure, the contour projection of the liquid inlet is located within the contour projection of the blocking structure.

7. The cleaning device according to claim 6, characterized in that: A gap is formed between the side portion of the blocking structure and the inner side wall of the third housing.

8. The cleaning device according to claim 7, characterized in that: In the horizontal direction, the size of the gap is less than half of the size of the blocking structure.

9. The cleaning device according to claim 6, characterized in that: The outer contour of the blocking structure abuts against the inner side wall of the third shell.

10. The cleaning device according to any one of claims 5 to 9, characterized in that Also includes: A fixing member is used to fix the blocking structure to the first shell.

11. The cleaning device according to claim 10, characterized in that: The blocking structure comprises: A plate body, wherein the first through hole and the second through hole are arranged on the plate body, and the second through hole is close to an edge of the plate body; The connecting plate is sleeved on the plate body, and the fixing member is connected to the connecting plate.

12. The cleaning device according to claim 11, characterized in that: The plate is laid flat in the cavity structure; or The middle portion of the plate body protrudes in a direction away from the heating element; or The middle portion of the plate body is recessed toward the heating element.

13. The cleaning device according to claim 11, characterized in that: The blocking structure further comprises: The enclosure plate is arranged around one end of the plate body facing the liquid inlet, and the enclosure plate is provided with a plurality of third through holes.

14. The cleaning device according to claim 2, characterized in that: Also includes: A sealing member is arranged between the second shell and the third shell.

15. The cleaning device according to claim 2, characterized in that: Also includes: The support member is arranged in the first shell, and the second shell is arranged on the support member.

16. The cleaning device according to claim 2, characterized in that: Also includes: The sudden jump thermostat is electrically connected to the heating element and is used to detect the temperature inside the heating cavity. When it is detected that the temperature inside the heating cavity is greater than or equal to a preset temperature upper limit, the sudden jump thermostat controls the heating element to stop heating.

17. The cleaning device according to claim 1, characterized in that: Also includes: The nozzle is arranged on the first shell and is connected to the steam outlet.

18. The cleaning device according to claim 17, characterized in that Also includes: The safety valve cover is arranged on the liquid inlet, wherein when the steam pressure of the cavity structure is greater than or equal to a preset pressure, the safety valve cover is in a locked state.

19. The cleaning device according to claim 17, characterized in that Also includes: a steam valve, disposed in the first shell; An operating member, disposed on the first housing and connected to the steam valve; Wherein, when the operating member is in the first position, the steam valve is opened, and the steam in the cavity structure is discharged through the nozzle; When the operating member is in the second position, the steam valve is closed.

20. The cleaning device according to claim 19, characterized in that Also includes: a locking member connected to the operating member, wherein when the locking member is in a locked state, the operating member is locked in the second position; When the locking member is in the unlocked state, the operating member can be switched between the first position and the second position.

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