KR102572010B1 - Sand sterilizer for playground - Google Patents

Abstract

The present invention relates to a playground sand sterilization device, and for this purpose, a table to which a handle frame is coupled; a coupled caster coupled to a lower surface of the table; and UV light coupled to one side of the table to irradiate the surface of the sand. a UV irradiation unit for sterilization; and a chemical liquid spraying unit extending from the bottom surface of the table and spraying the chemical liquid in the chemical liquid tank while moving through the sand, wherein the table includes a pair of first support frames connected in a diagonal direction toward the bottom of the table; It further includes a second support frame horizontally coupled to the end of the first support frame and an advancing plate having a ">" shape in cross section coupled to the end of each second support frame so as to facilitate movement in the sand. The injection unit is characterized in that it consists of a chemical liquid injection pipe fixed between the second support frame, and a plurality of chemical liquid injection nozzles coupled to an outer circumferential surface of the chemical liquid injection pipe.

Description

Playground sand sterilizer {SAND STERILIZER FOR PLAYGROUND}

The present invention relates to a playground sand sterilization device, and more particularly, to sterilizes the surface of sand and the inside of sand, as well as selectively injects a liquid chemical or steam into the sand, and also rotates a steam spraying rotating body by steam pressure. It relates to a playground sand sterilization device that provides moving force by doing so, while disturbing the inside of the sand by wings protruding in the form of teeth on a steam spraying rotating body so that the chemical solution can be uniformly sprayed into the sand.

In general, sand is naturally finely crumbled stone crumbs that can be commonly seen around us. This sand is mainly used for building buildings and is also widely used in fields that come in direct contact with people.

For example, it is a widely known fact that it is used in athletes' training grounds (ssireumjang), sand saunas, and playgrounds.

Sand used in general training grounds serves to prevent injury to athletes, and sand used in sand baths serves to improve the health of users.

In addition, the sand provided in the playground can be used as a useful play tool contributing to the improvement of creativity, the development of motor skills and sense of balance, as well as preventing children's injuries, and also plays a role in fostering nature-friendly emotions.

At this time, it is more important than anything else to prevent safety accidents caused by sanitation and foreign substances in the sand used in the above fields.

In particular, since management of sand provided in playgrounds mainly used by infants and children is exposed to the outside, it is natural that periodic management is required.

Currently, school playgrounds and indoor playgrounds are made of sand for the safety of children.

However, sand in these playgrounds sometimes hardens over time, and various foreign substances such as brick fragments, metal pieces, cigarette butts, and glass fragments are discarded and contaminated.

These foreign substances cause accidents such as children being cut on their hands, and there is a concern that unsanitary foreign substances mixed with sand may cause problems with children's health.

In view of these problems, a device capable of sterilizing sand has been applied for and registered (Korean Patent Registration No. 10-1041562).

However, this prior art has problems in that the device is very large and expensive, is not suitable for indoor use, and fine dust is generated by sterilizing by scooping up sand.

Republic of Korea Patent No. 10-1041562

The present invention has been made in view of the above problems, and a first object of the present invention is to provide a playground sand sterilization device having a very simple structure and capable of simultaneously sterilizing the surface and inside of sand.

A second object of the present invention is to selectively inject chemical solution or steam into the sand, and provide a moving force by rotating the steam spraying rotating body by steam pressure, while protruding in the form of sawtooth on the steam spraying rotating body. It is to provide a playground sand sterilization device that disturbs the sand by wings so that the chemical solution can be sprayed uniformly into the sand.

According to a feature for achieving the above object, the first invention relates to a playground sand sterilization device, for which a table to which a handle frame is coupled; and a coupled caster coupled to the bottom surface of the table; and, a UV irradiation unit that is coupled to one side of the table and sterilizes the surface of the sand by irradiating UV light; and a chemical liquid spraying unit extending from the bottom surface of the table and spraying the chemical liquid in the chemical liquid tank while moving through the sand, wherein the table includes a pair of first support frames connected in a diagonal direction toward the bottom of the table; It further includes a second support frame horizontally coupled to the end of the first support frame and an advancing plate having a ">" shape in cross section coupled to the end of each second support frame so as to facilitate movement in the sand. The injection unit is composed of a chemical liquid injection pipe fixed between the second support frames and a plurality of chemical liquid injection nozzles coupled to an outer circumferential surface of the chemical liquid injection pipe, a steam supply means is further mounted on the table, and the forward plate; A steam pipe fixed to the second support frame is connected to a steam supply means between the chemical liquid injection pipes, and a plurality of steam injection rotating bodies rotatably coupled to the steam pipe via a bearing are coupled at regular intervals, The steam spraying rotating body is characterized in that it performs an additional function of spraying steam by being rotated by the steam spraying pressure and at the same time disturbing the inside of the sand so that the chemical liquid of the chemical liquid spraying pipe can be uniformly distributed in the sand.

The second invention, in the first invention, is characterized in that a chemical solution supply means capable of supplying chemical solution to the chemical solution spraying unit and a secondary battery for supplying power to the UV irradiation unit are mounted on the upper part of the table.

In the third invention, in the first invention, the UV irradiation unit includes a frame frame coupled to one side of the table, a reflector fixed to the frame frame, and a reflector fixed to the inside of the reflector to irradiate UV light toward the ground. It is characterized in that it consists of a UV lamp.

In the fourth invention, in the second invention, a net for filtering out foreign substances in the sand is further coupled between each of the first support frames, and a scraper for aligning the sand surface at a uniform height is further coupled to the bottom surface of the table. characterized by being

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In the sixth invention, in the first invention, the steam pipe is further formed with a plurality of steam inlet holes in the first annular groove recessed at regular intervals, and the inner circumferential surface of the steam spraying rotating body corresponds to the first annular groove A second annular rim groove is formed, and the outer circumferential surface has a wing protruding in a sawtooth shape in a clockwise direction, and a steam injection hole that is in line with the second annular rim groove is formed on the wing.

According to the playground sand sterilization device according to the present invention, there is an effect of simultaneously sterilizing the surface of the sand and the inside of the sand while suppressing scattering of the sand.

In addition, the structure is very simple, and the operation is convenient.

In addition, it is possible to selectively inject chemical solution or steam into the sand, and provide a moving force by rotating the steam spraying rotating body with steam pressure, while disturbing the sand by protruding wings in the form of teeth on the steam spraying rotating body. The chemical solution is sprayed uniformly into the sand, and the sterilization effect is further increased.

1 is a configuration diagram of a playground sand sterilization device according to a first embodiment of the present invention;
2 is a plan view showing an advancing plate coupled to a second support frame in FIG. 1 and a chemical liquid spraying unit;
3 is a configuration diagram of a playground sand sterilization device according to a second embodiment of the present invention;
4 is a plan view showing a steam pipe and a steam spraying rotating body coupled to a second support frame in FIG. 3;
5 is a front view and a cross-sectional view of a steam pipe and a steam spraying rotating body taken from FIG. 3 .

Objects, other objects, features and advantages of the present invention below will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete and the spirit of the present invention will be sufficiently conveyed to those skilled in the art.

Embodiments described and illustrated herein also include complementary embodiments thereof.

In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. The terms 'comprise' and/or 'comprising' used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details have been prepared to more specifically describe the invention and aid understanding. However, readers who have knowledge in this field to the extent that they can understand the present invention can recognize that it can be used without these various specific details. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not greatly related to the invention are not described in order to prevent confusion in describing the present invention.

Hereinafter, the playground sand sterilization device according to the present invention will be described in detail together with the accompanying drawings.

[First Embodiment]

1 is a configuration diagram of a playground sand sterilization device according to a first embodiment of the present invention, and FIG. 2 is a plan view showing an advancing plate coupled to a second support frame in FIG. 1 and a chemical liquid spraying unit.

As shown in FIGS. 1 and 2, the present invention relates to a playground sand sterilization device capable of sterilizing the surface of the sand and at the same time spraying a chemical solution into the sand to sterilize the inside of the sand.

In the present invention, the playground sand sterilization device 100 to minimize scattering of sand is largely composed of four parts, which are composed of a table 10, a UV irradiation unit 30, and a chemical spray unit 60. do.

The table 10 is equipped with a chemical liquid supply means 50 and a secondary battery 40, and a handle frame 11 is coupled to the other side.

At this time, a caster 20 is coupled to the bottom surface of the table 10 so as to be movable on the ground so that the user can move through the caster 20 after gripping the handle frame 11.

Here, the caster 20 is configured in the form of an endless track or a roller, so that it can be easily moved on the sand surface. In an embodiment of the present invention, it has the form of a roller.

In addition, the caster 20 is in the form of being rotated by human power, but in another embodiment, a motor (not shown) driven by a mounted secondary battery may be connected.

In addition, the chemical solution supply unit 50 may include a chemical solution tank 51 storing a sterilizing solution and a pump 52 pumping the chemical solution in the chemical solution tank 51 .

The UV irradiation unit 30 is fixed to a frame frame 31 coupled to one side of the table 10, a reflector 32 fixed to the frame frame 31, and the inside of the reflector 32. It consists of a UV lamp 33 that irradiates UV light toward the ground.

Here, the UV lamp 33 is supplied with power by the secondary battery 40 mounted on the table 10 and irradiates UV light, and the UV light is diffused through the reflector 32 to sterilize the surface of the sand. is configured so that

In addition, the chemical liquid spraying unit 60 is located in the sand, and serves to spray the chemical liquid in the chemical liquid tank 51 while advancing on the bottom surface of the table 10 and moving through the sand. Here, it is preferable that the chemical solution is composed of ozone water.

The chemical liquid spraying unit 60 functions to sterilize the sand by spraying the chemical liquid into the sand.

To this end, the table 10 includes a pair of first support frames 12 connected in a diagonal direction toward the bottom, a second support frame 13 horizontally coupled to an end of the first support frame 12, The cross section coupled to the end of each of the second support frames 13 is configured to further include a forward plate 14 having a ">" shape so as to facilitate movement in the sand.

Here, the second support frame 13 is located in the sand through the first support frame 12, and the advancement plate 14 is at the end of the second support frame 13 so that it can move forward by digging into the sand. are combined

At this time, the chemical liquid spraying unit 60 includes a chemical liquid spraying pipe 61 fixed between the second support frame 13, and a plurality of chemical liquid spraying pipes 61 coupled to the outer circumferential surface of the chemical liquid spraying nozzle 611 consists of

Here, one end of the first support frame 12 extends relatively lower than the position of the caster 20 and is located in the sand.

In addition, the second support frame 13 is horizontally coupled to the end of the first support frame 12 extending into the sand, and functions to couple the chemical liquid injection pipe 61.

The forward plate 14 is coupled to the end of the second support frame 13 and functions to facilitate movement by digging into the sand.

At this time, a sliding plate 141 horizontally extended to the other side is further extended at the bottom of the advancing plate 14 so that it can be advanced as if sliding in the sand.

In addition, the chemical liquid injection pipe 61 functions to sterilize by spraying the chemical liquid in the chemical liquid tank 51 into the sand through the chemical liquid spray nozzle 611 while moving along with the forward plate 14 while being buried in the sand.

Therefore, the present invention sterilizes the surface of the sand through the UV lamp 33, and simultaneously sterilizes the surface layer and the inside of the sand by spraying the chemical liquid into the sand at the same time.

On the other hand, a net 121 for filtering out foreign substances in the sand is further coupled between each of the first support frames 12 inclined along the diagonal direction, and the net 121 passes sand particles and other than sand It is configured to filter out the foreign substances of the sand and to remove the foreign substances together with the sterilization of the sand.

In addition, a scraper 15 for aligning the surface of sand to a uniform height is further coupled to the lower part of the table 10, and the sand whose surface is unevenly raised by the advancing plate moving into the sand can be evenly aligned.

[Second Embodiment]

3 is a block diagram of a playground sand sterilization device according to a second embodiment of the present invention, FIG. 4 is a plan view showing a steam tube and a steam spraying rotating body coupled to the second support frame in FIG. 3, and FIG. It is a front view and cross-sectional view of the steam pipe and the steam spray rotating body extracted from 3.

As shown in FIGS. 3 and 5, the second embodiment includes the first embodiment, but a steam supply means 70 is further mounted on the table 10, the forward plate 14 and the chemical liquid injection pipe ( 61), a steam pipe 80 fixed to the second support frame 13 is installed to be connected to the steam supply means 70.

This second embodiment is configured to further increase the sterilization effect by spraying steam into the sand at the same time as the chemical solution.

Here, the steam supply means 70 is composed of a steam tank 71 that generates steam. At this time, the steam tank 71 has a built-in heating element (not shown) generating heat by the secondary battery 40 therein. Or, it may be configured to include a burner (not shown) for heating the steam tank 71 from the outside.

At this time, the pressure gauge 72 is further included in the steam tank 71, and the pressure in the steam tank 71 is checked through the pressure gauge 72 to control whether or not the built-in heating element (not shown) is heated. .

In addition, the steam tank 71 may be provided with a valve (not shown), through which steam in the steam tank 71 may be discharged through the steam pipe 80 at a certain pressure.

The steam pipe 80 is composed of a plurality of steam spraying rotors 90 rotatably coupled to each other at regular intervals through a bearing 81.

Here, in the steam pipe 80, a plurality of steam inlet holes 821 are further formed in the first annular groove 82 recessed at regular intervals. In addition, the steam spraying rotating body 90 is rotatably coupled to each of the first annular grooves 82 through a bearing.

The steam spraying rotating body 90 is rotated by the steam spraying pressure to spray steam and simultaneously disturbs the inside of the sand so that the chemical solution of the chemical liquid spraying pipe 61 can be uniformly distributed in the sand. do.

To this end, a second annular groove 91 corresponding to the first annular groove 82 is formed on the inner circumferential surface of the steam spray rotating body 90, and wings 92 protruding in a sawtooth shape along the clockwise direction on the outer circumferential surface However, the wing 92 is formed with a steam injection hole 921 that communicates with the second annular groove 91.

Accordingly, the steam spraying rotating body 90 is rotated by the steam discharge pressure of the steam spraying hole 921 formed on each wing 92, and each wing 92 disturbs the inside of the sand by rotation, so that the chemical liquid The injection pipe 61 allows the chemical solution to be uniformly sprayed to the disturbed sand.

In the above, steam in the steam tank 71 is supplied to the steam pipe 80 through a connecting hose (not shown), and the steam supplied to the steam pipe 80 passes through the steam inlet hole 821 to the first and second rings. It is supplied to the tehoms 82 and 91, and the steam in the first and second ring tehoms 82 and 91 is injected through the steam injection hole 921 communicating with the second ring tehom 91.

At this time, the steam spraying hole 921 is sprayed clockwise along the radial direction by the angle of the blade 92, so that the steam spraying rotating body 90 can be automatically rotated in the sand by the steam spraying pressure. is provided

In addition, the steam spraying rotating body 90 is rotated in the moving direction of the table 10 to provide a moving force, and thus serves as an additional function to move the sterilization device 100 more conveniently.

As such, the second embodiment can selectively inject chemical solution or steam into the sand as well as the function of the first embodiment of sterilizing the sand surface and inside the sand, and also rotates the steam spraying rotating body 90 by steam pressure. While providing a moving force, the inside of the sand is disturbed by the blades 92 protruding in the form of teeth on the steam spraying rotating body 90 so that the chemical solution can be sprayed uniformly into the sand, thereby increasing the sterilizing power.

In addition, the chemical solution in the chemical tank 51 and the steam in the steam tank 71 are supplied to the chemical liquid injection pipe 61 and the steam pipe 80 through a connection hose (not shown). The first support frame 12 and the second support frame 13 may be connected via the inside.

Since the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various equivalents that can replace them at the time of this application It should be understood that there may be variations and examples.

10: table 11: handle frame 12: first support frame
121: mesh 13: second support frame
14: forward plate 141: sliding plate
15: scraper
20: Caster
30: UV irradiation unit 31: frame frame 32: reflector
33: UV lamp
40: secondary battery
50: chemical liquid supply means 51: chemical liquid tank 52: pump
60: chemical liquid injection unit 61: liquid medicine injection pipe 611: chemical liquid injection nozzle
70: steam supply means 71: steam tank 72: pressure gauge
80: steam pipe 81: bearing 82: first ring tehom
821: steam inlet hole
90: steam injection rotating body 91: second ring tehom 92: wing
921: steam blower
100: playground sand sterilizer

Claims (6)

Table 10 to which the handle frame 11 is coupled;
A coupled caster 20 coupled to the bottom surface of the table 10;
A UV irradiation unit 30 coupled to one side of the table and irradiating UV light to the surface of the sand to sterilize it; and
A chemical liquid spraying unit 60 that sprays the chemical liquid in the chemical liquid tank 51 while advancing on the bottom surface of the table 10 and moving through the sand,
The table has a pair of first support frames 12 connected in a diagonal direction toward the bottom, a second support frame 13 horizontally coupled to the end of the first support frame 12, and movement in the sand. For ease of use, the cross section coupled to the end of each second support frame 13 further includes an advancing plate 14 having a ">" shape,
The chemical liquid injection unit is composed of a chemical liquid injection pipe 61 fixed between the second support frame 13 and a plurality of chemical liquid injection nozzles 611 coupled to an outer circumferential surface of the chemical liquid injection pipe 61,
A steam supply means 70 is further mounted on the table 10,
Between the forward plate 14 and the chemical liquid injection pipe 61, a steam pipe 80 fixed to the second support frame 13 is connected to the steam supply means 70,
A plurality of steam spraying rotating bodies 90 rotatably coupled to the steam tube 80 via a bearing 81 are coupled at regular intervals,
The steam spraying rotating body 90 is rotated by the steam spraying pressure to spray steam and simultaneously disturbs the inside of the sand so that the chemical liquid of the chemical liquid spraying pipe 61 can be uniformly distributed in the sand. A featured playground sand sterilizer.
According to claim 1,
A chemical solution supply means 50 capable of supplying chemical solution to the chemical solution injection unit 60 and a secondary battery 40 for supplying power to the UV irradiation unit 30 are mounted on the top of the table 10. Playground sand sterilizer with
According to claim 1,
The UV irradiation unit 30 is fixed to a frame frame 31 coupled to one side of the table 10, a reflector 32 fixed to the frame frame 31, and the inside of the reflector 32. Playground sand sterilization device, characterized in that composed of a UV lamp (33) for irradiating UV light toward the ground.
According to claim 2,
A net 121 for filtering out foreign substances in the sand is further coupled between each of the first support frames 12,
Playground sand sterilization device, characterized in that the lower surface of the table (10) is further coupled to the scraper (15) for aligning the sand surface to a uniform height.
delete According to claim 1,
The steam pipe 80 is further formed with a plurality of steam inlet holes 821 in the first annular groove 82 recessed at regular intervals,
A second annular groove 91 corresponding to the first annular groove 82 is formed on the inner circumferential surface of the steam spray rotating body 90, and the outer circumferential surface has wings 92 protruding in a sawtooth shape in a clockwise direction. , Playground sand sterilization device, characterized in that the wing 92 is formed with a steam injection hole 921 that communicates with the second annular groove 91.