KR20070076185A - Nozzle for cleaner - Google Patents

Abstract

A nozzle for a cleaner is provided to suck foreign substances through a suction hole and remove the foreign substance attached to the bottom floor secondarily by a steam-contained floorcloth. A nozzle for a cleaner includes a steam generating unit, a suction passage pipe, and a pressure regulating unit(250). The steam generating unit supplies steam by heating water. The suction passage pipe is provided on one side of the steam generating unit to guide the air introduced from outside and foreign substances. The pressure regulating unit regulates the steam pressure generated in the steam generating unit. The pressure regulating unit includes an injection hole valve(152) selectively interrupting a water introduction opening through which water is introduced into the nozzle. The injection hole valve includes an inner valve(220) and an outer valve(240). The inner valve is inserted into and coupled with the injection hole valve. The outer valve is provided at an upper side of the inner valve, and forms an outer appearance.

Description

Nozzle for Cleaner}

1 is an external perspective view of a steam combined vacuum cleaner in which a preferred embodiment of the nozzle according to the present invention is employed.

Figure 2 is an external perspective view of a preferred embodiment of the vacuum cleaner nozzle according to the present invention.

3 is a partial cutaway perspective view of a preferred embodiment of a vacuum cleaner nozzle according to the present invention;

Figure 4 is an exploded perspective view of a preferred embodiment of a vacuum cleaner nozzle according to the present invention.

5 is a side cross-sectional view of a preferred embodiment of the vacuum cleaner nozzle according to the present invention.

6 is a front sectional view of a preferred embodiment of a vacuum cleaner nozzle according to the present invention.

7 is a bottom perspective view of a preferred embodiment of the vacuum cleaner nozzle of the present invention.

Figure 8 is a perspective view showing the configuration of the inlet valve constituting the vacuum cleaner nozzle according to the present invention.

Figure 9 is a cross-sectional view showing the internal configuration of the inlet valve constituting the vacuum cleaner nozzle according to the present invention.

Figure 10 is an exploded perspective view showing the configuration of the inlet valve constituting the vacuum cleaner nozzle according to the present invention.

11 is a use state showing a state that the steam is discharged through the inlet valve constituting the vacuum cleaner nozzle according to the present invention.

<Explanation of symbols for the main parts of the drawings>

50. Body 60. Extension tube

70. Hose 80. Handle

100.Nozzle 110.Base Pan

112. Suction port 114. Moving wheel

116. Connectors 118. Shock Absorbers

120. Steam generator 130. Steam case

132. Steam base 134. Steam cover

136. Steam generator 138. Water reservoir

140. Heater 142. Heater support

144. Steam Guide 146. Absorption Filter

150. Water inlet 152. Inlet valve

160. Suction channel 170. Plate receiving part

172. Steam guide member 174. Steam jet hole

180. Mop plate 182. Mop attachment

184. Exposures 190. Mop

200. Outer case 210. Center cover

212.Display unit 220.Inner valve

222. Member receiving hole 224. Member guide

230. Steam passage hole 240. Outer valve

250. Pressure regulating means 252. Flow member

254. Elastic members

The present invention relates to a cleaner, and more particularly, to a nozzle of a cleaner having a pressure regulating means for preventing excessive pressure rise of water vapor generated by heating of water.

The vacuum cleaner is a device to reduce human labor by cleaning with the power of a machine. A vacuum cleaner using suction force and a water cleaner that injects water and air at the same time by spraying water, as well as foreign matters on the floor by spraying steam recently. Various types of steam cleaners for removing oil have emerged.

A general vacuum cleaner is designed to inhale various dusts and dirts on the carpet, furniture or floor in a short time by the suction force generated by the difference in air pressure through the driving of the motor mounted inside the main body, and to remove them.

However, these vacuum cleaners are designed and used only to inhale dust from the floor to fit the Western residential culture using carpets or furniture, so our country lives directly on the floor without using furniture. It is not suitable for the ondol sedentary living culture, and there is a problem of double cleaning. In other words, in our traditional style, floor coverings or ondol are usually laid without furniture or carpeting. Therefore, when cleaning the floor, the floor must be cleaned by water and finally the cleaning is completed.

Therefore, firstly, a general vacuum cleaner removes visible garbage and various dirts, and secondly, a moist-containing mop or a steam cleaner exemplified above wipes the bottom surface to perform cleaning. There is a problem that the operation is quite cumbersome, there is a problem that must be provided by the type of cleaner.

In addition, steam cleaners, in which steam is generated by heating water and built in a nozzle, are installed in a nozzle to be cleaned by steam in recent years, but in these steam cleaners, when the steam pressure of steam rises, the internal pressure increases. There is a problem that the product is broken (exploded) due to the increase.

SUMMARY OF THE INVENTION An object of the present invention for solving the conventional problems as described above is to provide a nozzle of a cleaner that can perform vacuum cleaning and steam cleaning at the same time.

Another object of the present invention is to provide a nozzle of a cleaner provided with a pressure regulating means capable of adjusting the steam pressure of steam.

The nozzle of the cleaner according to the present invention for achieving the above object comprises a steam generator for supplying water vapor by heating water; It is provided on one side of the steam generating device, and the suction flow passage that guides the air and foreign matter introduced from the outside; And a pressure regulating means for regulating the steam pressure generated by the steam generator.

According to the present invention configured as described above, there is an advantage that the damage caused by the pressure increase of the steam is prevented.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The nozzle according to the present invention can be applied to various types of vacuum cleaners regardless of the type and name of the vacuum cleaner. However, for convenience of description, the following description will be given by taking a case where it is applied to a steam combined vacuum cleaner as an example.

1 shows a perspective view of a combined steam cleaner employing a nozzle according to the present invention.

As shown in the drawing, the vacuum cleaner according to the present invention includes a main body 50 in which a plurality of parts are built, an extension pipe 60 configured to be adjustable in length, and an extension pipe 60 connected to air and foreign matter. The connecting hose 70 of the elastic material for guiding, and the nozzle 100 for guiding the suction of air and foreign matter while moving in a state close to the bottom surface.

In more detail, the nozzle 100 and the main body 50 are spaced apart, and the extension pipe 60 and the connection hose 70 are provided between the nozzle 100 and the main body 50 to provide air and foreign matter. Will guide the flow. That is, one end (front end) of the extension pipe 60 is connected to the nozzle 100, and one end (back end) of the connection hose 70 is coupled to the front end of the main body 50.

The other end (rear end) of the extension pipe 60 is provided with an operation handle (80). The operation handle 80 is a part for the user to easily grip the cleaning operation, the front of the operation handle 80 is formed with an operation unit 82 to enable the user to operate the vacuum cleaner.

Therefore, the user manipulates the operation unit 82 while holding the operation handle 80 with one hand to turn on / off the operation of the cleaner and the strength or weakness of the vacuum cleaner 120 to be described below. (off) can be controlled.

The main body 50 is provided with a plurality of parts such as a motor assembly (not shown) that rotates by the power supplied from the outside to generate a suction force, and a dust collecting unit 52 in which foreign substances in the air are filtered and stacked.

Therefore, when power is applied from the outside and a suction force is generated, external air and foreign matter are sucked through the nozzle 100 and introduced into the main body 50 via the extension pipe 60 and the connection hose 70. The foreign material introduced into the main body 50 is filtered by a filter (not shown) provided inside the dust collecting unit 52 and accumulated in the dust collecting unit 52.

2 to 7 show the configuration of the nozzle 100 in detail. That is, FIGS. 2 and 3 show an external perspective view and a partial cutaway perspective view of the nozzle 100, respectively, and FIG. 4 shows an exploded perspective view of the nozzle 100. 5 and 6 illustrate side and front cross-sections of the nozzle 100, respectively, and FIG. 7 illustrates the bottom surface of the nozzle 100.

The nozzle 100 guides the foreign material of the bottom surface to be sucked into the main body 50 together with the air, and the base fan 110 forming the bottom surface as shown, and the base fan 110 of the base fan 110. The overall appearance is formed by the outer case 200 coupled to the upper side.

The base fan 110 has a quadrangular shape, and a suction port 112 through which external air and foreign matter flows is formed in the center portion of the distal end up and down. That is, the air and the foreign matter under the base fan 110 are moved to the upper side of the base fan 110 through the suction port 112.

A rear wheel 114 is installed at the rear end of the base fan 110. The moving wheel 114 is to facilitate the movement of the nozzle 100, a pair is installed on the left and right. A pair of auxiliary wheels 114 ′ are installed at left and right ends of the base pan 110 to assist the movement of the nozzle 100.

The rear end of the central portion of the base fan 110 is connected to the connecting pipe 116 is installed. The connecting pipe 116 guides the extension pipe 60 and the nozzle 100 to be coupled. Therefore, the front end of the connecting pipe 116 is connected to the rear end of the nozzle 100, the rear end is coupled to the front end of the extension pipe (60). In addition, the connecting pipe 116 is formed in a cylindrical shape guides the air and foreign substances introduced into the nozzle 100 to the extension pipe (60).

The buffer member 118 is attached to the edge of the base pan 110. More specifically, the shock absorbing member 118 made of an elastic material such as rubber is attached to the front and left and right sides of the base pan 110. The buffer member 118 serves to prevent damage to the nozzle 100 and to mitigate an impact when the nozzle 100 collides with an external object such as a wall surface.

Inside the nozzle 100, a steam generator 120 is provided to heat water to supply water vapor.

The steam generator 120 has a rough appearance is formed by the steam case 130 as shown. The steam case 130 includes a steam base 132 formed of a flat plate and a steam cover 134 coupled to an upper side of the steam base 132. Therefore, a predetermined space is formed between the steam base 132 and the steam cover 134.

In the space between the steam base 132 and the steam cover 134, a steam generator 136 for heating water to form water vapor, and water storage for supplying water to the steam generator 136 A portion 138 is formed. That is, the space between the steam base 132 and the steam cover 134 is divided into left and right, and the steam generator 136 is formed on the left side and the water storage unit 138 is formed on the right side.

Looking in more detail, the steam generator 136 is formed long before and after the left end of the nozzle 100, the water storage unit 138 is formed to extend left and right through the central portion of the nozzle 100 The steam generator 136 and the water storage unit 138 are formed to communicate with each other.

Accordingly, the steam generator 136 has a front and rear length larger than the length of the water storage unit 138, and the left and right lengths are smaller than the length of the water storage unit 138. In addition, the height of the steam generating unit 136 is formed larger than the height of the water storage unit 138. This is because the steam generating unit 136 should be provided with a sufficient space for the formation of water vapor (水蒸氣), and also to accommodate the heater 140 to be described below.

The steam generator 136 is provided with a heater 140. The heater 140 generates heat by power applied from the outside, thereby converting the water of the steam generator 136 into steam. The heater 140 is preferably formed in a 'U' shape (viewed from above) as shown.

A heater support 142 is formed at the rear end of the steam generator 136. The heater support 142 protrudes upward from the steam base 132 to fix and support both ends of the heater 140.

A steam guide 144 is formed near the center of the steam generator 136. The steam guide 144 is formed to protrude upward from the steam base 132 by a predetermined height, and comprises a hollow shaft having a flow path therein. Therefore, steam is moved through the steam guide 144. That is, water vapor formed in the steam generator 136 is moved below the steam base 132 through the steam guide 144.

Meanwhile, an absorption filter 146 is provided at the bottom of the steam generator 136. The absorption filter 146 is preferably formed in a square shape corresponding to the bottom size of the steam generating unit 136, it is located below the heater 140.

More specifically, the lower surface of the absorption filter 146 is in contact with the steam base 132, and the upper surface is in contact with the heater 140. In addition, the absorption filter 146 is preferably made of a material that easily absorbs water and has high heat resistance. That is, the absorption filter 146 is made of a material capable of holding water, such as a sponge, and is formed of a material having high heat resistance that does not burn even in contact with the heater 140. For example, it is made of a material such as asbestos.

Accordingly, the water of the water storage unit 138 as well as the steam generator 136 is absorbed into the absorption filter 146. That is, the water of the water storage unit 138 also moves to the steam generator 136 to seep into the absorption filter 146. The moisture absorbed by the absorption filter 146 is converted into water vapor by heating and evaporating by the heater 140.

The steam cover 134 is formed stepped. That is, as shown, the steam cover 134 includes a steam cover 134 ′ covering an upper side of the steam generator 136 and a storage cover 134 ″ covering an upper side of the water storage 138. The steam cover 134 ′ on the left side and the storage cover 134 ″ on the right side are formed stepwise so that the height of the steam cover 134 ′ is higher than the height of the storage cover 134 ″. As big as.

The water inlet 150 is formed in the steam cover 134. That is, a water inlet 150 penetrates up and down is formed at the right end of the steam cover 134. The water inlet 150 protrudes a predetermined portion upward as a portion into which water is input. And a screw surface is formed inside the water inlet 150.

The water inlet 150 is selectively shielded by the inlet valve 152. That is, as shown, when the inlet valve 152 of the circular threaded surface formed on the bottom screwed to the water inlet 150, the water inlet 150 is shielded.

The suction flow passage 160 is installed above the water storage unit 138 of the steam generator 120. That is, the suction flow channel 160 is installed above the storage cover 134 ″ of the steam cover 134. The suction flow channel 160 is configured to move air and foreign substances from the outside to the rear of the nozzle 100. To guide.

The suction channel 160 is installed across the center of the nozzle 100 back and forth, the front end is coupled to the suction port 112. That is, the front end of the suction flow pipe 160 is vertically bent downward and coupled to the upper end of the suction port 112.

The lower portion of the base pan 110 is formed such that the rectangular plate receiving portion 170 is recessed upward. The plate accommodating part 170 is a part in which the mop plate 180 described below is accommodated, and the plate accommodating part 170 is made of a metal material so that the mop plate 180 to be described below can be attached by magnetic force. This is preferred.

In the central portion of the plate receiving portion 170, the steam guide member 172 is formed long left and right. A flow path is formed inside the steam guide member 172 to guide the water vapor moved to the lower side of the base fan 110 through the steam guide 144 to be distributed to the left and right.

On the lower surface of the steam guide member 172, a plurality of steam jet holes 174 are formed to penetrate up and down. Therefore, water vapor guided by the steam guide member 172 is discharged downward through the steam jet hole 174.

The plate accommodating part 170 is equipped with a square plate-shaped mop plate 180. The mop plate 180 is a plate to which the mop 190 is attached, and a mop attachment part 182 for attaching the mop 190 is formed at a bottom thereof. That is, as shown in FIG. 7, the first and second half portions of the bottom surface of the mop plate 180 are provided with mop attachment parts 182 extending from side to side.

The mop attaching portion 182 is preferably made of Velcro, or magic tape, also referred to as 'sticky'. Therefore, although not shown, a mop 190 having a velcro corresponding to the mop attaching part 182 is attached to the bottom of the mop plate 180.

On the other hand, although not shown, the permanent magnet is installed to the left and right in the interior of the mop plate 180. This permanent magnet is for the mop plate 180 to be easily attached to the plate receiving portion 170. That is, the plate accommodating part 170 is formed of a metal material, and since the permanent magnet is embedded in the mop plate 180, the mop plate 180 is brought to the vicinity of the plate accommodating part 170. 180 is spontaneously attached to the plate receiving portion 170.

In the center portion of the mop plate 180, the exposure port 184 is formed to penetrate up and down. That is, the exposed portion 184 of the size corresponding to the left and right length of the steam guide member 172 is formed in the central portion of the mop plate 180 long to the left and right. Therefore, the bottom surface of the steam guide member 172 is exposed to the lower portion of the mop plate 180 through the exposure opening 184.

The outer case 200 is coupled to the base fan 110 to form the front and rear, as well as the left and right and the top appearance of the nozzle 100. Near the right end of the outer case 200, the valve seat 202 on which the inlet valve 152 is seated is formed to be recessed downward. In addition, a valve through hole 204 through which the lower end of the inlet valve 152 penetrates is formed at the center of the valve seat 202.

A central cover 210 is further provided at the center of the outer case 200 to cross the front and rear sides. In addition, the display unit 212 is further formed on the central cover 210. The display unit 212 serves to display the operation state of the steam generator 120 to the outside, and mainly displays whether power is supplied and whether water is insufficient (water replenishment).

8 to 10 show the configuration of the inlet valve 152 in more detail. That is, FIG. 8 illustrates an appearance of the inlet valve 152, and FIG. 9 is a cross-sectional view of the inlet valve 152. 10 is an exploded perspective view of the inlet valve 152.

As shown in these figures, the inlet valve 152, the inner valve 220 is inserted into the water inlet 150 and fastened, the outer side provided on the upper side of the inner valve 220 to form an appearance Valve 240 or the like.

Inside the inner valve 220 is formed a member receiving groove 222 which is a space having a predetermined size. The member accommodating groove 222 accommodates the flow member 252 to be described below to flow up and down. In addition, the member guide 224 is formed up and down in the central portion of the member accommodating groove 222. The member guide 224 is formed in a cylindrical shape having a diameter smaller than the inner diameter of the member receiving groove 222, to guide the vertical movement of the flow member 252 to be described below. Inside the member guide 224, a fastening guide 244 to be described below is inserted and accommodated.

A valve barrier 226 is formed at the central portion of the inner valve 220. The valve barrier 226 divides the space inside the inner valve 220 up and down, and the member receiving groove 222 described above is formed on the upper side, and the steam flow hole 228 is formed on the lower side.

The valve barrier 226 is formed with a steam passage hole 230 penetrates up and down. The steam passage hole 230 guides the steam generated by the steam generator 120 to move upward of the valve barrier 226 via the steam flow hole 228. The steam passage hole 230 is selectively shielded by the flow member 252 to be described below, and consists of one or a plurality of holes.

On the outer circumferential surface of the inner valve 220, a screw thread 232 is formed in a spiral direction to be screwed to the water inlet 150. A discharge groove 236 is formed in the edge portion 234 formed at the upper end of the inner valve 220. That is, four discharge grooves 236 are formed on the front, rear, left, and right sides of the edge portion 234, and the discharge grooves 236 move upwardly through the valve barrier 226 through the steam passage hole 230. It is the part that guides the discharge of steam.

A plurality of fixing protrusions 238 are further formed at the edge portion 234. The fixing protrusion 238 is inserted into the protrusion accommodating part 242 of the outer valve 240 to be described below to facilitate the coupling of the inner valve 220 and the outer valve 240.

On the outer circumferential surface of the outer valve 240, a plurality of protrusion accommodating parts 242 are formed to protrude outward. A plurality of grooves (not shown) are formed in the protrusion accommodating part 242 to accommodate the fixing protrusion 238 of the inner valve 220.

The fastening guide 244 is protruded downward from the center of the bottom surface of the outer valve 240. The fastening guide 244 is inserted into the member guide 224 of the inner valve 220, and a fastening bolt groove 244 'to which the fastening bolt 246 is fastened is formed.

The inlet valve 152 is further provided with a pressure regulating means 250 for adjusting the steam pressure generated by the steam generating device 120. That is, when the pressure of steam generated by the steam generator 120 is increased between the inner valve 220 and the outer valve 240, a part of the steam (water vapor) is discharged to the outside. Pressure control means 250 to be provided is provided.

The pressure regulating means 250 is a flow member 252 is installed to flow in accordance with the steam pressure in the steam generator 120, and an elastic member 254, etc. to block the movement of the flow member 252 It is composed.

As illustrated, the flow member 252 has an annular annular shape and is made of a heat resistant material. The flow member 252 is accommodated in the member receiving groove 222. Accordingly, as shown in FIG. 9, the bottom surface of the flow member 252 is in contact with the top surface of the valve barrier 226 to shield the steam passage hole 230 formed in the valve barrier 226.

A support groove 252 ′ is recessed downward in an upper surface of the flow member 252. The support groove 252 ′ is formed in a ring shape corresponding to the lower end of the elastic member 254, and is a portion in which the lower end of the elastic member 254 is accommodated.

The elastic member 254 is provided on the upper side of the flow member 252, to block the upward movement of the flow member 252, preferably made of a compression spring. Therefore, the lower end of the elastic member 254 made of such a compression spring is inserted into the support groove 252 'and fixed.

Hereinafter, the operation of the nozzle having the above configuration and the steam combined vacuum cleaner employing the nozzle will be described.

First, the user opens the water inlet 150 by rotating the inlet valve 152, and then supplies water from the outside through the water inlet 150. And when the appropriate amount of water is accommodated in the water storage unit 138, the water inlet 150 is shielded again by using the inlet valve 152.

Next, when power is applied from the outside, such power is supplied to the main body 50 and the nozzle 100. Therefore, a motor assembly (not shown) provided inside the main body 50 rotates to generate a suction force.

In this case, as illustrated in FIG. 5, foreign matter is sucked with air through the suction port 112 of the nozzle 100 and passes through the suction flow channel 160 to extend the extension pipe 60 and the connection hose. It is introduced into the main body 50 through the 70. The foreign matter in the air introduced into the main body 50 is collected by the filter assembly (not shown) provided in the dust collecting unit 52, the foreign matter filtered air is the motor assembly (not shown) It is discharged to outside.

On the other hand, the steam generator 120 is operated by the power applied from the outside. That is, external power is supplied to the heater 140 to heat the heater 140. Of course, at this time, water is supplied to the water storage unit 138 from the outside through the water inlet 150, and the water absorbing filter 146 is sufficiently absorbed.

Therefore, when the heater 140 is heated, the water absorbed by the absorption filter 146 in contact with the heater 140 is heated to form water vapor. In this case, the water heated by the heater 140 is not water in the whole stored in the steam case 130, but water around the heater 140 absorbed by the absorption filter 146. .

More specifically, since the bottom of the heater 140 is installed on the upper surface of the absorption filter 146, when the heater 140 is heated, water located around the heater 140, that is, the absorption The water contained in the filter 146 is preferentially heated and converted to water vapor. Therefore, water evaporates and vaporizes within a short time (by experiment, within about 10 to 20 seconds).

The water vapor generated by the heater 140 moves downward through the steam guide 144 and flows into the steam guide member 172 as shown in FIG. 6. At this time, since the steam guide member 172 is formed long to the left and right, the water vapor in the steam guide member 172 is distributed to the left and right and discharged downward through the plurality of steam jet holes 174. .

Water vapor (水蒸氣) discharged to the outside through the steam jet hole 174 is introduced into the mop 190. Therefore, the mop 190 contains hot steam and becomes a mop. When the bottom surface is cleaned in this state, foreign matter attached to the bottom surface is easily separated and removed by the mop 190. .

In addition, when the amount of steam (water vapor) generated by the steam generator 120 is increased and the steam pressure inside the nozzle 100 is increased to a predetermined pressure or more, a part of steam is discharged to the outside. It is made by the adjusting means 250.

In more detail, when the amount of steam generated by the steam generator 120 increases in the state as shown in FIG. Is increased.

Therefore, when the pressure of the steam (water vapor) is greater than the elastic force of the elastic member 254, the flow member 252 rises upward by the pressure inside the steam flow hole 228. In this case, a gap is formed between the bottom surface of the flow member 252 and the top surface of the valve barrier 226, and the steam passage hole 230 is opened.

11, the steam passage hole 230 is opened and steam (water vapor) is discharged to the outside.

Looking in more detail, the steam (vapor) inside the steam flow hole 228 by the opening of the steam passage hole 230 is moved to the upper side of the valve barrier 226 through the steam passage hole 230, The steam (vapor) moved upwards of the valve barrier 226 is guided to the upper side of the member receiving groove 222 and discharged to the outside through the plurality of discharge grooves 236.

When the steam (water vapor) inside the nozzle 100 is discharged to the outside by the above process, the steam (water vapor) pressure inside the nozzle 100 is reduced, the pressure of the steam is the elastic member ( When less than the elastic force of 254, the flow member 252 again blocks the steam passage hole 230.

That is, when the steam (water vapor) pressure inside the steam flow hole 228 is reduced in the state as shown in FIG. 11, the flow member 252 again moves downward by the force and the load of the elastic member 254. 9, the steam flow hole 228 is blocked by the original position as shown in FIG. 9. In this case, the external discharge of steam (water vapor) is again blocked.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

In the nozzle of the cleaner according to the present invention as described above, the foreign material attached to the bottom surface is wiped off with a mop while at the same time sucking the foreign material. That is, a suction port through which foreign matter is sucked is formed at the front end of the nozzle, and at the same time as the mop is mounted, steam is injected into the mop.

Therefore, when the user performs cleaning while pushing the nozzle forward, foreign matter is first sucked in and removed through the suction port, and the foreign matter attached to the bottom surface is removed by a mop containing steam secondaryly. Vacuum cleaning and mop cleaning is effected at the same time.

In addition, in the present invention, the pressure adjusting means is provided inside the nozzle, and when the pressure inside the nozzle is increased, a part of steam is configured to be discharged to the outside through the water inlet. Therefore, since the steam (water vapor) pressure inside the nozzle is properly maintained, the breakage (explosion) of the nozzle due to the internal pressure rise is prevented, and the safety accident caused by the steam (water vapor) suddenly leaking into the gap between the parts is reduced. It works.

Claims (7)

A steam generator (120) for heating water and supplying water vapor; It is provided on one side of the steam generating device 120, the suction flow path pipe 160 to guide the air and foreign matter introduced from the outside; The nozzle of the cleaner having a configuration comprising a; pressure control means for regulating the steam pressure generated by the steam generator (120). According to claim 1, wherein the pressure adjusting means 250, The nozzle of the cleaner, characterized in that provided in the inlet valve (152) for selectively shielding the water inlet (150) for introducing water into the nozzle. According to claim 2, wherein the pressure adjusting means 250, A flow member 252 installed to flow according to the steam pressure inside the steam generator 120; It is provided on one side of the flow member 252, the elastic member (254) for preventing the movement of the flow member 252; nozzle of the cleaner having a configuration comprising a. The method of claim 3, wherein the inlet valve 152, An inner valve 220 inserted into the water inlet 150 and fastened; The nozzle of the cleaner, characterized in that it comprises a; provided on the upper side of the inner valve 220, the outer valve to form an appearance; The steam passage hole 230 for guiding the movement of the steam generated by the steam generator 120 is formed in the inner valve 220, and the steam passage hole 230 is formed in the inner valve 220. Nozzle of the cleaner, characterized in that selectively shielded by the flow member (252). The nozzle of claim 5, wherein a discharge groove 236 is formed at an upper end of the inner valve 220 to guide the steam passing through the steam passage hole 230 to the outside. The method according to any one of claims 3 to 6, The flow member 252 is made of a heat resistant material, The elastic member 254 is a nozzle of the cleaner, characterized in that the compression spring.

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