KR200166973Y1 - Dust meter of vacuum cleaner - Google Patents

Abstract

The present invention relates to a dust indicator employed in a vacuum cleaner. More specifically, the assembly structure is simple, the number of components is reduced, the assembly process in the assembly line is simple, and the manufacturing cost of the vacuum cleaner is reduced, thereby improving the price competitiveness. The dust indicator of the vacuum cleaner which can be made.

The present invention is mounted on a dust cover that opens and closes the dust chamber in which the dust bag is built, the dust indicator to indicate the replacement time of the dust bag, a predetermined length from the inner side of the dust cover to the bottom continuously formed, facing Snap fittings are respectively formed on the inner side of the long side, the display window is punctured, the bottom receiving portion rectangular opening portion; A housing in which the inlet and the mounting holes are perforated on the front and rear surfaces of the cylindrical body integrally formed with the rectangular body that is caught by the lower end of the snap fit, and the outlet is drilled on one side of the boundary bottom surface of the rectangular body and the cylindrical body; A plunger assembled in the cylindrical body to be slidable and having a plurality of protruding ribs in a longitudinal direction on an outer circumferential surface thereof; And a spring interposed between the cap assembled to the mounting hole of the cylindrical body and the plunger assembled in the cylindrical body to support the plunger to one side.

Description

Dust indicator of vacuum cleaner {DUST METER OF VACUUM CLEANER}

The present invention relates to a dust indicator employed in a vacuum cleaner. More specifically, the assembly structure is simple, the number of components is reduced, the assembly process in the assembly line is simple, and the manufacturing cost of the vacuum cleaner is reduced, thereby improving the price competitiveness. The dust indicator of the vacuum cleaner which can be made.

In general, the vacuum cleaner is configured to have a function of collecting dust or other foreign matter on the floor cleaning surface as a powerful suction force generated by the motor drive, the configuration of such a vacuum cleaner as shown in FIG.

That is, the general vacuum cleaner 100 is partitioned into the dust collecting chamber 112 and the driving chamber 122 by the inner partition 118, the main body 110, which is free to move by the rear wheel, and suction to suck the dust, etc. The suction brush (not shown) consists of a flexible pipe 117 detachably attached to the front end of the multi-stage extension pipe (not shown), connected to form an air passage, and detachable to the front of the main body 110 is freely assembled. have.

The vacuum cleaner 100 having such a configuration includes external air containing dust or foreign matter through the suction brush by a strong suction force generated by the driving of the motor 120 embedded in the drive chamber 122 in the main body 110. Forced suction and continuous suction through the dust bag 125 provided in the dust collecting chamber 112 to exhaust only clean air to the outside.

In addition, when dust and foreign substances are excessively collected in the dust bag 125, the motor 120 is overloaded by receiving a considerable resistance to the air flow formed in the dust collecting chamber 112 inside the main body 110. Since there is a risk of damaging the vacuum cleaner 100, it is necessary to replace the dust bag 125 at an appropriate time, the replacement time of the dust collection chamber by a separate device provided in the dust collecting chamber (112) By detecting the pressure change in 112 and visually confirming the degree of dust collection by the user, by informing the user of the replacement time of the dust bag 125, the pressure in the dust collection chamber 112 is reduced by the inflow of external air. An attempt was made to protect the motor 120.

The conventional dust indicator 130 having such a function is provided in the inner space of the cover member 139 mounted as the screw member 138 on the inner surface of the dust collecting cover 113 for opening and closing the upper part of the dust collecting chamber 112. As shown in FIG. 2, the cover member 139 has at least two colors in the cylindrical housing 131 made of a transparent material, that is, green and red colors are painted on the surface, respectively, to collect dust and dust. Continuously assemble the display plunger (133l, 133b) indicating the expiration state, and one side of the housing 131 is in communication with the atmosphere so that the outside air can be introduced to the control plug 135 affected by the atmospheric pressure The sealing member 134a is provided in the through hole 137 of the cover member 139 so as to be in communication with the dust collecting chamber 112 in which the dust bag 125 is mounted on the other side, so as to be affected by the internal vacuum pressure. Continuous assembly with connector 134 assembled as a medium Between the display plunger (133a), (133b) with the coupling pipe 134 has been configured to support slide so via the spring 132, the indicator plunger (133a), the elasticity (133b) always in one direction. Reference numeral 136 is a packing member for sealing the assembly between the upper end of the cover member 139 and the inner surface of the dust collecting cover 113, 139a is a screw boss to which the screw member 138 is fastened.

Accordingly, when the dust bag 125 of the dust collecting chamber 112 is not filled with dust or foreign matter, the internal vacuum pressure of the dust collecting chamber 112 is smaller than the set elastic force of the spring 132 so that the green display is displayed. The plunger 133a is displayed to the outside through a display window (not shown) punched on the upper surface of the dust collecting cover 113, so that the user can recognize that the user is in a normal operating state.

On the contrary, when the dust bag 125 is filled with dust or foreign matter in the dust bag 125 of the dust collecting chamber 112, the air flow from the suction brush side receives a considerable resistance, and the house on the side of the connecting pipe 134 due to the pressure difference. As a greater vacuum pressure is applied within the truth 112, the display plungers 133a and 133b in the housing 131 move toward the connecting pipe 134 while resisting the elastic force of the spring 132, thereby providing a red color. By displaying the display plunger 133b to the outside through the display window, the user can easily recognize that the dust collecting expired state.

However, the conventional dust indicator 130 having such a function is provided in the cover member 139, and the assembly process for installing the inner surface of the dust cover 113 with the screw member 139a is complicated, and the assembly work time in the assembly line is complicated. This long and large number of components had a problem of lowering the price competitiveness of the vacuum cleaner 100.

Therefore, the present invention has been made to solve the above problems, the purpose is to simplify the assembly structure to improve the assembly productivity, reduce the manufacturing cost of the vacuum cleaner by reducing the number of components to reduce the price competitiveness It is intended to provide a dust indicator of a vacuum cleaner that can be improved.

1 is a longitudinal sectional view showing a general vacuum cleaner;

Figure 2 is an exploded perspective view showing a dust indicator of a vacuum cleaner according to the prior art,

3 is an exploded perspective view showing a dust indicator of a vacuum cleaner according to the present invention;

Figure 4 is a longitudinal sectional view showing a dust indicator of a vacuum cleaner according to the present invention,

Figure 5 is a longitudinal sectional view showing a plunger employed in the dust indicator of the vacuum cleaner according to the present invention, Figure 6 is a perspective view showing another embodiment of the plunger employed in the dust indicator of the vacuum cleaner according to the present invention.

<Detailed Description of Major Parts of Drawing>

1 ..... Dust Indicator 10 ..... Square Receptacle

11 ..... Snap Fit 20 ..... Housing

20a ..... Square Body 20b ..... Cylindrical Body

21 ..... incision edge 22 ..... inlet

23 ..... Mounting port 24 ..... Outlet

30 ..... Plunger 31 ..... Rib Rib

40 ..... Spring 41 ..... Cap

100 .... vacuum cleaner 113 .... dust cover

The present invention for achieving the above object is, in the dust indicator that is mounted on the dust cover to open and close the dust collecting chamber in which the dust bag is built, the dust indicator, the lower side from the inner surface of the dust cover Continuously formed in a predetermined length, the snap-fit is formed on each of the inner side of the long side facing each other, the display window is perforated, the rectangular receiving portion is open bottom; A housing in which the inlet and the mounting holes are perforated on the front and rear surfaces of the cylindrical body integrally formed with the rectangular body that is caught by the lower end of the snap fit, and the outlet is drilled on one side of the boundary bottom surface of the rectangular body and the cylindrical body; A plunger assembled in the cylindrical body to be slidable and having a plurality of protruding ribs in a longitudinal direction on an outer circumferential surface thereof; And a spring interposed between the cap assembled to the mounting hole of the cylindrical body and the plunger assembled in the cylindrical body to support the plunger to one side.

Hereinafter, the dust indicator of the vacuum cleaner according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is an exploded perspective view showing a dust indicator of the vacuum cleaner according to the present invention, Figure 4 is a longitudinal sectional view showing a dust indicator of the vacuum cleaner according to the present invention, Figure 5 is a dust indicator of a vacuum cleaner according to the present invention It is a longitudinal cross-sectional view which shows the plunger employ | adopted for the.

As shown in FIGS. 3 to 5, the dust indicator 1 of the vacuum cleaner according to the present invention is gradually changed depending on the degree of dust and dirt collection of the dust bag 125 mounted in the dust collecting chamber 112 during cleaning. The rectangular housing accommodated integrally provided on the inner surface of the dust collecting chamber 112 so that the user can visually check the change in the internal vacuum pressure inside the dust collecting chamber 112 to recognize the replacement time of the dust bag 125 easily. It is easy and quick to assemble to the unit 10, it is possible to improve the price competitiveness by reducing the manufacturing cost of the vacuum cleaner 100 by reducing the number of components compared to the conventional.

That is, as shown in FIGS. 3 and 4, the rectangular accommodation portion 10 continuously formed at a predetermined length from the inner side of the dust collecting cover 113 is open at the bottom and faces the long and short sides 10a. ), (10b) is provided in the form of a rectangular box (Box), the inner side of the opposite long side (10a) is formed to project a snap fit (11), respectively, the rectangular receiving portion (10) The upper surface of the dust collecting cover 113 is formed to perforate the display window 12 to a predetermined size to enable free inflow of air.

In addition, the housing 20, which is mounted in the inner space of the rectangular accommodating part 10 and is made of a transparent material so that the internal observation is easy, constitutes the rectangular body 20a and the cylindrical body 20b integrally with the snap. The square body 20a, which is fixed to the lower edge of the pit 11 and is positioned, has an incision edge cut in a vertical corner portion where adjacent sides meet so that the square body 20a can be easily assembled easily when assembling to the inner side of the square receiving portion. 21) are formed respectively, and the lower part of each side of the said rectangular body 20a which consists of a thickness of a normal light lower narrow side is provided so that it may open to some extent outside.

In addition, the cylindrical body 20b is hollow and integrally formed on the upper surface of the square body 20a. The front surface of the cylindrical body 20b perforates a predetermined size inlet 22 into which outside air is introduced, and a cap 41 on the rear surface thereof. Perforated mounting holes 23 for assembling, and the outside air introduced through the display window 12 on one side of the boundary bottom surface of the rectangular body 20a and the cylindrical body 20b through the inlet 22. A perforated outlet 24 having a predetermined size that can be guided and discharged to the dust collecting chamber 112 is provided. At this time, the cross-sectional area (A) of the inlet 22 is formed through the same size as the cross-sectional area (A ') of the outlet 24 so that it is possible to uniformly discharge the introduced air to a dust collecting chamber 112 in a uniform amount. It is desirable to.

Since the curved outer circumferential surface of the assembled cylindrical body 20b is in contact with the inner surface of the horizontal dust collecting cover 113, as shown in FIG. The outside air may naturally flow into the inlet 22 of the housing 20. The forming length of the cylindrical body 20b is shorter than the length of the rectangular body 20a to form a space portion in front and rear of the cylindrical body 20b mounted inside the rectangular receiving portion 10, thereby forming the space portion. It is possible to easily enter the inlet port 22, which is the only air passage, without blocking the outside air introduced through the display window 12, it is possible to assemble the cap 41.

In addition, the inner space of the hollow cylindrical body 20b is provided with a plunger 30 to enable sliding movement, and a plurality of protruding ribs 31 in contact with the inner circumferential surface of the cylindrical body 20b are provided on the outer circumferential surface thereof in the longitudinal direction. By forming the protrusion, the outside air introduced through the inlet 22, as shown in Figures 4 and 5, between the inner peripheral surface of the cylindrical body 20b formed by the protrusion rib 31 and the outer peripheral surface of the plunger 30 After entering the interior of the housing 20 through the gap of the, it can proceed to the outlet 24 affected by the internal vacuum pressure of the dust chamber (112). And, by having a spring 40 having a predetermined elastic restoring force between the cap 41 and the partition wall 30a of the plunger 30 assembled by the mounting holes 23 perforated on the rear surface of the cylindrical body 20b, The plunger 30 in contact with the tip is configured to be supported on one side and on the left side in the drawing.

In order to complete the assembly of the dust indicator 1 as described above to the dust cover 113 of the vacuum cleaner 100, first, the plunger 30 to the hollow side of the cylindrical body 20b constituting the housing 20; When the spring 40 is inserted in turn and the cap 41 is assembled to the mounting hole 23 of the cylindrical body 20b, the plunger 30 is moved to one side by the elastic restoring force of the spring 40 to be compressed. Some assembly is done so that it is always pushed. When the square body 20a is inserted from below so that the housing 20 in the assembled state is fitted into the square receiving portion 10, the square body 20a is opened to the outside and has an incision edge 21. While each side of the elastically fit to the inner side of the long, short side (10a), (10b) of the rectangular receiving portion 10, the lower end of the rectangular body (20a) to the long side (10a) side snap fit 11 By locking, the housing 20 can be easily fixed to the inside of the rectangular receiving portion 10 of the dust collecting cover 113, thereby completing the assembly of the dust indicator 1 without fastening the screw member 138 as in the related art.

Accordingly, when the dust bag 125 of the vacuum cleaner 100 equipped with the dust indicator 1 is not filled with dust and foreign matter, the inner circumferential vacuum pressure formed in the dust collecting chamber 112 is the plunger 30. Since the plunger 30 supported at the tip of the spring 40 is less than the set elastic restoring force of the spring 40 supporting one side, external exposure through the display window 12 is prevented by the spring 40. It is located on the left end of the cylindrical body 20b so as to be difficult, and the user can visually check that the operation state of the vacuum cleaner 100 is normal.

On the other hand, when the dust bag 125 is filled with a large amount of dust and foreign matter in the dust bag 125 for a long time cleaning, the dust bag (125) and the intake air to be exhausted to the outside while passing through the driving chamber 122, the dust bag ( Since dust and foreign matter in 125 are subjected to considerable resistance to air flow, the vacuum pressure inside the dust collecting chamber 112 is gradually increased in proportion to the degree of dust collection of the dust bag 125.

In this case, the internal vacuum pressure of the dust collecting chamber 112 that is caught at the outlet 24 of the square body 20a through which the outside air introduced through the display window 12 and the inlet 22 of the cylindrical body 20b is discharged. Since the pressure is higher than the atmospheric pressure applied to the display window 12, the plunger 30 mounted to be slidable in the cylindrical body 20b of the housing 20 due to the pressure difference is interposed between the rear end and the cap 41. In contrast to the set elastic force of the spring 40 is moved to the cap 41 side. That is, the plunger 30 is opened as a ratio when the vacuum pressure inside the spring 40 is greater than or equal to the set elastic force, so that air is introduced to the front side and retracts backward in the drawing.

At this time, the plunger 30, which is colored or configured with a color or material clearly distinguished from the dust collecting cover 113 in which the display window 12 is perforated so that a user can easily check and determine the degree of expression expressed outside. The display window 12 is gradually displayed to the outside, and the report user can know the replacement time of the dust bag 125, so that when the degree of expression of the plunger 30, which is visually confirmed, the user becomes a vacuum cleaner ( By stopping the operation of 100 and replacing the dust bag 125 with a new one, the continuous cleaning work can be performed without the motor overload.

On the other hand, the plunger 30 which slides in the cylindrical body 20b according to the change of the internal vacuum pressure of the said dust collecting chamber 112 may be comprised and employ | adopted as shown in FIG. That is, the front surface assembled to the inlet 22 is sealed, while the rear surface is opened so that the front end of the spring 40 is fitted inward, and the front outer circumferential surface of the plunger 30 having a plurality of protruding ribs 31 is formed. While forming a plurality of depressions 33 formed in a predetermined depth toward the center side, while the air introduced through the inlet port 22 passes through the surface of the containment portion 33 is discharged to the discharge port 24 side size Through holes 33a are formed.

Accordingly, according to the dust indicator 1 of the vacuum cleaner according to the present invention, the plunger 30 and the spring 40 are sequentially assembled into the cylindrical body 20a, and the cap 41 is mounted on the rear mounting opening 23. By assembling the square body (20a) of the housing 20, which is assembled to the inside of the square receiving portion 10 formed on the lower surface of the dust cover 113, the assembly structure is simpler, simpler than the conventional vacuum cleaner ( The assembly workability of 100) can be improved, and the effect of reducing the number of components and improving the price competitiveness of the vacuum cleaner 100 can be obtained.

Claims (7)

In the dust indicator that is attached to the dust collecting cover 113 for opening and closing the dust collecting chamber 112 in which the dust bag 125 is built, indicating the replacement time of the dust bag 125, the inner surface of the dust collecting cover 113 Continuously formed in a predetermined length from the bottom, the snap-fit 11 is formed on the inner side of the long side (10a) facing each other, the display window 12 is perforated, the rectangular receiving portion 10 is open bottom ; The inlet 22 and the mounting holes 23 are drilled on the front and rear surfaces of the cylindrical body 20b integrally formed with the square body 20a on the snap-fit 11, and the square body 20a. A housing 20 which has a perforated outlet 24 at one side of the boundary bottom surface of the cylindrical body 20b; A plunger 30 assembled to slide in the inner space of the cylindrical body 20b and having a plurality of protruding ribs 31 formed in a longitudinal direction on an outer circumferential surface thereof; A spring 40 interposed between the cap 41 assembled in the mounting hole 23 of the cylindrical body 20b and the plunger 30 assembled in the cylindrical body 20b to support the plunger 30 to one side. Dust indicator of the vacuum cleaner comprising a .; The method of claim 1, wherein the square body (20a) forms an incision edge (21) cut in the vertical edge portion where the adjacent sides meet so as to be elastically fitted to the inner surface of the rectangular receiving portion 10 during assembly, The dust indicator of the vacuum cleaner, characterized in that the lower portion of each side consisting of the thickness of the ordinary light is narrowly formed to spread outward. According to claim 1, The inlet 22 is a cross-sectional area (A) of the same size as the cross-sectional area (A ') of the outlet 24 so that it can be discharged in a predetermined amount toward the dust collecting chamber 112 side. Dust indicator of the vacuum cleaner, characterized in that formed through. The cylindrical body 20b is configured to allow natural inflow of air through the display window 12 drilled on the upper surface of the cylindrical body 20b by contacting the inner surface of the horizontal dust collecting cover 113. Dust bag of the vacuum cleaner, characterized in that. According to claim 1, The cylindrical body (20b) is easily introduced to the inlet port 22 side of the only air passage without blocking the outside air flowing through the display window 12, so that the cap can be assembled, The dust indicator of the vacuum cleaner, characterized in that the space formed in the front and rear of the cylindrical body (20b) formed of a shorter than the formed length of the rectangular body (20a), respectively. The front surface of the plunger 30, which is assembled to the inlet port 22, is sealed, whereas the rear surface of the plunger 30 is opened so that the front end of the spring 40 is fitted inward, and the plurality of protruding ribs 31 are formed. ) Is formed on the front outer circumferential surface is formed a plurality of depressions 33 formed in a predetermined depth toward the center side, while the air introduced through the inlet 22 is passed through the surface of the contents 33, the outlet 24 Dust indicator of the vacuum cleaner, characterized in that to form a through hole (33a) of a predetermined size to be discharged to the side. According to claim 1, The plunger 30 is made of a color or material that is clearly distinguished from the dust collecting cover 113, the display window 12 is perforated so that the user can easily check and determine the degree of expression expressed to the outside Dust indicator of a vacuum cleaner, characterized in that it is colored or constructed.