Anti-scald structure, boiler using same and steam cleaning machine of boiler

Abstract

The utility model relates to an anti-scald structure, a boiler applying the structure and a steam cleaning machine of the boiler, the anti-scald structure is arranged in the boiler and located below a water inlet in the top of the boiler, the anti-scald structure comprises a horizontally-arranged punching net plate, a plurality of through holes are formed in the punching net plate, the diameter of each through hole is 0.5-0.7 mm, and the diameter of each through hole is 0.5-0.7 mm. The distance between the centers of every two adjacent through holes ranges from 2.5 mm to 4 mm. A perforated mesh plate is arranged below a water inlet of the boiler, and after water is added into the water inlet, the added water forms a layer of water film on the perforated mesh plate and then overflows from the side edge of the perforated mesh plate; the water film serves as a cooling medium and can cool water vapor generated in the boiler so that the water vapor can be liquefied into water, then the density of the water vapor is reduced, meanwhile, water overflowing from the side edge of the punching net plate is dispersed, and the water vapor can be cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of steam cleaners, in particular to an anti-scalding structure in a boiler for a steam cleaner, a boiler applying the structure, and a steam cleaner applying the boiler. Background Art

[0002] A steam cleaner is a device that uses high-temperature steam to clean the surface of an object. It generates steam by heating water and then releases it through a nozzle to achieve the purpose of cleaning and disinfection. Steam cleaners can be used not only for household cleaning but also for various occasions such as commercial cleaning and industrial cleaning. For example, high-temperature steam can quickly decompose grease and dirt, and the cleaning effect is remarkable, especially suitable for heavily soiled areas such as kitchens and bathrooms; the high temperature of steam can kill bacteria and viruses, providing an additional disinfection effect, suitable for places such as hospitals and clinics that require high hygiene standards.

[0003] The steam cleaner uses water as a cleaning agent. The volume of the steam cleaner is relatively small, and the rated water storage capacity is between 150 and 270 milliliters. Such a capacity can support continuous steam spraying for about 10 to 15 minutes, and water needs to be replenished frequently during use.

[0004] Moreover, during actual use, some users do not strictly follow the instructions in the manual to add water after the steam cleaner is turned off and cooled. Instead, they directly introduce water into the water inlet of the boiler through a funnel when the temperature inside the boiler of the steam cleaner is relatively high or the boiler electric heating is turned on. In this case, the added water will be heated by the boiler to generate steam and escape from the water inlet or the neck of the funnel, thus scalding the user. In order to prevent users from being scalded by misoperation and shorten the waiting time for the steam cleaner to cool, the existing boilers of steam cleaners need to be further improved. Summary of the Utility Model

[0005] The first technical problem to be solved by the utility model is to provide an anti-scalding structure that can prevent users from being scalded in case of misoperation according to the current situation of the prior art.

[0006] The second technical problem to be solved by the utility model is to provide a boiler applying the above anti-scalding structure according to the current situation of the prior art.

[0007] The third technical problem to be solved by the utility model is to provide a steam cleaner applying the above boiler according to the current situation of the prior art.

[0008] The technical solution adopted by the present utility model to solve the first above-mentioned technical problem is: an anti-scalding structure, which is arranged inside the boiler and below the water inlet at the top of the boiler. The anti-scalding structure includes a horizontally arranged punched mesh plate, and a number of through holes are provided on the punched mesh plate. The aperture of the through holes is 0.5 - 0.7 mm, and the distance between the centers of adjacent through holes is 2.5 - 4 mm.

[0009] Preferably, the aperture of the through holes is 0.6 mm, and the distance between the centers of adjacent through holes is 3 mm.

[0010] In order to facilitate the formation of a water film on the punched mesh plate, the through holes on the punched mesh plate are arranged in a straight staggered arrangement, a rectangular arrangement or a circular arrangement. The straight staggered arrangement means that the through holes in each row are arranged in a straight line at equal distances, and the through holes in the next row are staggered from those in the previous row; the rectangular arrangement means that the through holes in each row are arranged in a straight line at equal distances, and the through holes in the next row are aligned with those in the previous row; the circular arrangement means that with a certain through hole as the center, the other through holes form a concentric circle pattern around this center.

[0011] In order to facilitate the connection of the anti-scalding structure to the boiler, a connecting plate extends radially outward along the periphery of the punched mesh plate, and connection holes for connecting with the boiler are provided on the connecting plate.

[0012] Preferably, a number of connecting convex plates extend radially outward along the connecting plate, and the connection holes are provided on each connecting convex plate.

[0013] In order to improve the connection stability between the anti-scalding structure and the boiler, there are three connecting convex plates, and the connecting convex plates are equally spaced in the circumferential direction of the connecting plate.

[0014] In order to increase the thickness of the water film, a water baffle extends upward first along the periphery of the punched mesh plate, and the connecting plate extends radially outward along the water baffle.

[0015] The technical solution adopted by the present utility model to solve the second above-mentioned technical problem is: a boiler, which is arranged inside a steam cleaner and includes an upper furnace body and a lower furnace body connected to each other. The upper furnace body and the lower furnace body enclose a heating chamber for heating cold water. An inlet is provided at the top of the upper furnace body, and the above-mentioned anti-scalding structure is horizontally arranged in the heating chamber.

[0016] In order to facilitate the connection of the anti-scalding structure to the boiler, the upper furnace body is provided with a number of connecting columns extending downward, and connection holes are provided on the punched mesh plate. The connecting columns are connected to the connection holes. The connecting columns and the connection holes are welded to each other, or the connecting columns and the connection holes are connected by studs.

[0017] The technical solution adopted by the present utility model to solve the above-mentioned third technical problem is as follows: A steam cleaner is provided with the above-mentioned boiler.

[0018] Compared with the prior art, the advantages of the present utility model are as follows: A punching mesh plate is provided below the water inlet of the boiler. After adding water to the water inlet, the added water first forms a water film on the punching mesh plate and then overflows from the side of the punching mesh plate; the water film, as a cooling medium, can cool the water vapor generated in the boiler, causing the water vapor to liquefy into water, thereby reducing the density of the water vapor. At the same time, the water overflowing from the side of the punching mesh plate is relatively dispersed and can also play a role in cooling the water vapor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the boiler in the embodiment of the present utility model;

[0020] Figure 2 is Figure 1 a cross-sectional view of the boiler in

[0021] Figure 3 is Figure 2 a schematic structural diagram of the anti-scalding structure in

[0022] Figure 4 is Figure 3 a cross-sectional view of the anti-scalding structure in

[0023] Figure 5 is a schematic structural diagram of another punching mesh plate in the embodiment of the present utility model;

[0024] Figure 6 is a schematic structural diagram of yet another punching mesh plate in the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] As Figures 1 to 6 shown, a preferred embodiment of the boiler 100 with the anti-scalding structure 1 of the present utility model is applied. The anti-scalding structure 1 is arranged inside the boiler 100 of the steam cleaner and is located below the water inlet 101 at the top of the boiler 100.

[0027] The anti-scalding structure 1 includes a horizontally arranged circular punching mesh plate 11. The area of the punching mesh plate 11 is larger than the area of the water inlet 101. A number of through holes 12 are provided on the punching mesh plate 11. The aperture of the through holes 12 is 0.6 mm, and the distance between the centers of adjacent through holes 12 is 2.5 - 4 mm. As Figure 3 shown, taking the through hole at the center of the punching mesh plate 11 as the center of the circle, the other through holes form a concentric circle A pattern around this center of the circle. The aperture of the through holes 12 and the distance between the centers of adjacent through holes 12 are set to be able to form a stable water film as the standard.

[0028] When the internal temperature of the boiler of the steam cleaner is relatively high or the electric heating wire 31 in the boiler is working, if the user replenishes water by mistake at the water inlet 101 at the top of the boiler 100, the downward water flow is blocked by the punching mesh plate 11 and forms a water film on the punching mesh plate 11, and then flows downward along the edge of the punching mesh plate 11 into the bottom of the boiler 100. Since water has a large specific heat capacity and can absorb more heat, and there are through holes 12 below the water film, when the water flow flows into the bottom of the boiler 100 to generate water vapor, the water vapor will be cooled when it encounters the water film during the upward escape process, and the water vapor will condense into water, thereby reducing the density of the water vapor and reducing the risk of the water vapor escaping from the water inlet 101 and scalding the user. The utility model can not only prevent scalding the user in case of misoperation, but also save the time for the user to wait for the steam cleaner to cool down. For example, when the temperature of the boiler in the steam cleaner drops to half or one-third of the maximum temperature, water can be added.

[0029] In addition, a water retaining plate 13 with a height of 3-6 mm extends upward from the periphery of the punching mesh plate 11, and a connecting plate 14 extends radially outward along the punching mesh plate 11 from the water retaining plate 13; the connecting plate 14 continues to extend radially outward along the punching mesh plate 11 with 3 connecting convex plates 15, and the connecting convex plates 15 are equidistantly arranged in the circumferential direction of the connecting plate 14; connection holes 16 for connecting with the boiler 100 are provided on each connecting convex plate 15. Among them, setting the water retaining plate 13 with a certain height can maintain the thickness of the water film and improve the stability of the water film. The water film with a certain thickness can absorb more heat of the water vapor and increase the cooling effect on the water vapor; the number of the connecting convex plates 15 and the connection holes 16 are both set to 3, and the stability of the triangle can be used to enhance the connection between the anti-scalding structure 1 and the boiler 100.

[0030] In other embodiments, the through holes 12 on the punching mesh plate 11 can also be arranged in a rectangular pattern, and the through holes 12 in each row are arranged in a straight line at equal distances, and the through holes 12 in the next row are aligned with the through holes 12 in the previous row; as Figure 5 shown, the through holes 12 can be regarded as being repeatedly arranged in units of a rectangle B, wherein the aperture of the through hole 12 is 0.6 mm, and the rectangle B is a square with a side length of 3 mm.

[0031] In other embodiments, the through holes 12 on the punching mesh plate 11 are arranged in a straight staggered pattern, and the through holes 12 in each row are arranged in a straight line at equal distances, and the through holes 12 in the next row are staggered from the through holes 12 in the previous row; as Figure 6 shown, the through holes 12 can be regarded as being repeatedly arranged in units of a parallelogram C, wherein the aperture of the through hole 12 is 0.6 mm, and the parallelogram C is a rhombus with an included angle of 60 degrees, and the side length of the rhombus is 3 mm.

[0032] As Figure 1and 2 As shown in 2 , the present utility model also protects a boiler disposed in a steam cleaner. The boiler includes an upper furnace body 2 and a lower furnace body 3 which are connected to each other. The upper furnace body 2 and the lower furnace body 3 enclose a heating chamber 100a for heating cold water. An electric heating wire 31 for heating cold water is provided inside the lower furnace body 3. An inlet 101 is opened at the top of the upper furnace body 2. The upper furnace body 2 is provided with three connecting columns 21 extending downward. The connecting columns 21 are connected to the connecting holes 16 on the above-mentioned anti-scalding structure 1. The connecting columns 21 and the connecting holes 16 are welded, or the connecting columns 21 and the connecting holes 16 are connected by studs.

[0033] The present utility model also protects a steam cleaner which applies the above-mentioned boiler 100.

Claims

1. A scalding prevention structure, arranged inside a boiler (100) and below a water inlet (101) at the top of the boiler (100), characterized in that: The scald prevention structure (1) comprises a horizontally arranged perforated mesh plate (11), on which a plurality of through holes (12) are arranged, wherein the aperture of the through holes (12) is 0.5 to 0.7 mm, and the spacing between the centers of adjacent through holes (12) is 2.5 to 4 mm.

2. The anti-scalding structure according to claim 1, characterized in that: The aperture of the through hole (12) is 0.6 mm, and the distance between the centers of adjacent through holes (12) is 3 mm.

3. The anti-scalding structure according to claim 1, characterized in that: The through holes (12) on the perforated mesh plate (11) are arranged in a staggered straight line, in a rectangular arrangement, or in a circular arrangement.

4. The scald protection structure according to any one of claims 1 to 3, characterized in that: A connecting plate (14) is provided on the periphery of the perforated mesh plate (11) extending outwardly in the radial direction of the perforated mesh plate (11), and a connecting hole (16) connected to the boiler (100) is provided on the connecting plate (14).

5. The anti-scalding structure according to claim 4, characterized in that: The connection plate (14) has a plurality of connection protrusions (15) extending outwardly along the radial direction of the perforated mesh plate (11), and each of the connection protrusions (15) is provided with the connection hole (16).

6. The anti-scalding structure according to claim 5, characterized in that: There are three connecting protrusions (15), and the connecting protrusions (15) are arranged at equal intervals in the circumferential direction of the connecting plate (14).

7. The scald protection structure according to claim 4, characterized in that: A water retaining plate (13) first extends upward from the periphery of the perforated mesh plate (11), and the water retaining plate (13) extends outward from the connecting plate (14) along the radial direction of the perforated mesh plate (11).

8. A boiler, arranged in a steam cleaning machine, comprising an upper furnace body (2) and a lower furnace body (3) connected to each other, the upper furnace body (2) and the lower furnace body (3) enclosing a heating chamber (100a) for heating cold water, a water inlet (101) being provided at the top of the upper furnace body (2), characterized in that: The anti-scalding structure (1) according to any one of claims 1 to 7 is horizontally arranged in the heating chamber (100a).

9. The boiler according to claim 8, characterized in that: The upper furnace body (2) is provided with a plurality of connection columns (21) extending downwards, the perforated mesh plate (11) is provided with connection holes (16), and the connection columns (21) are connected to the connection holes (16).

10. A steam cleaning machine, characterized in that: A boiler (100) as claimed in claim 8 or 9 is used.

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