KR102523697B1 - Waste box with non-powered negative pressure - Google Patents

Abstract

The present invention relates to a non-powered negative pressure wastebasket capable of preventing the release of foul odors and leakage of pathogens by generating negative pressure when a user opens a lid of the wastebasket and forming the negative pressure without using a power source by rotating a fan by the power of stepping on a pedal. The non-powered negative pressure wastebasket includes: an outer container including the opened and closed lid in the upper part; an inner container accommodated in the outer container and having a pair of opening units on the upper side, wherein waste is put into the inner container; a negative pressure generating unit installed in the outer container to generate the negative pressure in the inner container by using rotation of the fan; the pedal opening the opened and closed lid by being connected to the opened and closed lid by a link member and simultaneously forming the negative pressure in the negative pressure generating unit; and a fan driving unit converting pedal effort into torque of the fan by including a train of gears with a large gear ratio.

Description

Non-Powered Negative Pressure Trash Can {WASTE BOX WITH NON-POWERED NEGATIVE PRESSURE}

The present invention relates to a non-powered negative pressure trash can, and more particularly, when the lid of the trash can is opened, negative pressure is generated inside the trash can to prevent the emission of odors and viruses from leaking to the outside, as well as the power of stepping on the pedal without using power. It relates to a non-powered negative pressure dustbin in which negative pressure is formed while the fan rotates.

In general, a trash can is composed of a body having an open upper part and a space for receiving garbage therein, and a lid sealing the upper part of the open body. Therefore, in order to put garbage into the trash can, the user must open the lid, open the upper part of the sealed body, and then insert the garbage, and after putting the garbage, close the lid again to seal the upper part of the body. do.

However, the above-described conventional trash can has a cumbersome problem in use because the upper part of the body must be opened or sealed by holding the lid directly after putting the trash therein or putting it therein.

Therefore, in order to solve this problem, a pedal-type trash can has been proposed in which a lid is rotatably coupled to an upper portion of the body and the lid can be opened using a pedal provided on the lower surface of the body. These pedal-type trash cans can be opened and closed without holding the lid by hand, so it is convenient to use and prevents hand contamination.

However, even if it is a pedal-type trash can, the odor inside the trash can emits to the outside as soon as the lid is opened, which can cause discomfort to the user, and in some cases, bacteria or viruses inside the trash can leak to the outside and cause infection. .

Accordingly, a method of maintaining the pressure inside the trash can at negative pressure to prevent odor from dissipating when the lid is opened and preventing the leakage of bacteria or viruses has been proposed, but in this case, a separate negative pressure generating means and There is a problem that the unit price of the product rises rapidly because the driving means is required.

In this regard, Korean Patent Publication No. 10-2009-0117375 discloses a body with an open top and a space formed therein; a lid coupled to the body to open and close the upper part; Support portion coupled to the bottom surface of the body; a horizontal axis coupled to the supporting portion; A scaffold coupled to one end of the horizontal axis; and a vertical axis having a lower end coupled to the other end of the horizontal axis and an upper end coupled to the lid, and using a pedal to rotate the lid up or down to move the upper part of the open body conveniently when garbage is put into the trash can. A pedal-type trash can has been proposed and disclosed that can be opened and closed stably to conveniently insert trash into the trash can, but this is not a negative pressure structure, so odors are released to the outside the moment the lid is opened, and bacteria or viruses are released. There are disadvantages that can leak out.

In addition, Patent Registration No. 10-2368578 includes an inner cylinder for storing garbage; an outer cylinder in which the inner cylinder is internally accommodated, the top lid opens when the pedal unit provided at the front lower side is operated, and the inner cylinder protrudes at an angle so that garbage can be conveniently inserted into the inner cylinder; and an opening/closing means installed inside the outer cylinder body and performing an opening/closing motion of opening and closing the top lid in association with the operation of the pedal unit, wherein garbage is put in and stored by simply stepping on the pedal without touching the top lid. In addition to this possibility, a pedal-type trash can has been proposed and disclosed to make the process of putting in and storing the garbage easier, but this is also not a negative pressure structure, so odors are emitted to the outside the moment the lid is opened, and germs or viruses There is a disadvantage that may leak to the outside.

In addition, in Korean Patent Registration No. 10-1040199, in a trash can in which a garbage bag is inserted between a cylindrical body and an inner cylinder, a pair of bar entrances are formed to correspond on both sides of the lid covering the upper part of the inner cylinder, and the lid A handle that rotates forward and backward is provided on the upper part, and a pair of eccentric grooves are formed on the bottom surface of the handle, into which protrusions formed on the upper ends of the pair of reciprocating rods inserted into the respective rod entrances are inserted, and the ends of the respective reciprocating rods are rotated. When a coaxial shaft is formed and the handle is rotated forward and backward, the reciprocating rods move away or narrow, and the pivot shafts are inserted into or removed from the auxiliary shaft formed at the top of the inner cylinder. Although a usable multifunctional trash can has been proposed and disclosed, it also has a disadvantage in that odor is emitted to the outside and bacteria or viruses may leak to the outside the moment the lid is opened.

Republic of Korea Patent Publication No. 10-2009-0117375 Republic of Korea Patent Registration No. 10-2368578 Republic of Korea Patent Registration No. 10-1040199

Therefore, the present invention has been devised in consideration of and solving the above-mentioned problems, and the lid of the trash can can be safely opened and closed using a pedal, and when the lid of the trash can is opened, negative pressure is generated inside, thereby dissipating odors and preventing viruses. An object of the present invention is to provide a convenient non-powered negative pressure dustbin that prevents external leakage and generates negative pressure while a fan rotates by the power of stepping on a pedal without using power.

According to the non-powered negative pressure trash can of the present invention for achieving the above object, the outer cylinder is provided with a retractable lid rotatably on the top; An inner cylinder into which garbage is put and accommodated inside the outer cylinder, and a pair of openings formed on the upper side; A negative pressure generating unit provided in the outer cylinder to generate negative pressure inside the inner cylinder by using rotation of the fan; a pedal connected to the retractable lid by a link member to open the retractable lid and simultaneously form a negative pressure in the negative pressure generating unit; and a fan driving unit having a gear train having a large gear ratio to convert pedal effort into rotational force of the fan.

Here, the negative pressure generator includes a fan that discharges air from the inner cylinder to the outside using rotational force, a fan housing formed to a size corresponding to the opening of the inner cylinder to protect the fan, and a filter member that filters the air flowing out to the outside. , It may include a filter cover provided outside the outer cylinder to accommodate the filter member and a fan belt that transmits rotational force of the belt pulley rotated by the fan driver to the fan.

Here, the filter member is made of a HEPA filter capable of removing odorous components and bacteria, and can be slidably coupled to the filter cover for replacement.

Here, the middle portion of the pedal is hingedly fixed to the pedal bracket and elastically supported by the pedal spring provided at the distal end side, and the link member may be rotatably connected to the distal end.

Here, the fan drive unit rotatably supports a drive shaft rotated in a forward or reverse direction to drive the fan, a pair of drums provided on the drive shaft so that a drive wire having one end connected to a pedal is wound, and the drive shaft rotatably and elastically A pair of gearboxes equipped with a spring that rotates the driveshaft in the reverse direction at the moment the pedal is released and a gear train that can obtain a high gear ratio by using a gear combination, and connecting the driveshaft and the input shaft of the gearbox A pair of one-way clutches may be included, and the one-way clutch may transmit rotational force to the input shaft only when the drive shaft rotates in a forward direction and prevent rotational force from being transmitted to the input shaft when the drive shaft rotates in a reverse direction.

Here, each gear forming the gear train of both gearboxes is connected to each other by a first transmission shaft, a second transmission shaft, and an output shaft, and a belt pulley for rotating the fan belt may be provided on the output shaft.

In the non-powered negative pressure trash can according to the present invention, the lid can be easily closed and closed using a pedal, and negative pressure is generated in the negative pressure generating unit while the lid is opened to prevent odors from being emitted or bacteria from leaking out. And as the negative pressure generator is operated by the force of stepping on the pedal without using power, it is possible to achieve useful effects that are convenient to use.

According to the present invention, a negative pressure can be formed inside by using the rotational force of the fan, and a useful effect of only purified air being discharged to the outside can be achieved as the filter member filters the air discharged to the outside. .

According to the present invention, since the filter member is made of a HEPA filter and is slidably coupled to the filter cover, it is possible to achieve useful effects such as prevention of odor emission and external leakage of bacteria and the like, and enabling easy replacement of the filter member.

According to the present invention, when the pedal is stepped on, the lid is naturally opened by the principle of leverage, and when the pedal is released, the pedal returns to its initial position by the weight of the lid and the elastic force of the pedal spring.

According to the present invention, since the one-way clutch is provided in the fan driving part, the rotational force of the driving shaft is transmitted to the fan through the gearbox only when the pedal is depressed, and the fan rotates. When the pedal returns to the initial position, the fan does not operate. Only the drive shaft can be reversed to achieve the useful effect of winding the drive wire around the drum.

According to the present invention, as the gears of the gearboxes on both sides are connected to each other by the transmission shaft and the output shaft, it is possible to achieve a useful effect of generating negative pressure by rotating the fans of the negative pressure generating units on both sides at the same speed.

1 is an external perspective view showing a non-powered negative pressure trash can according to the present invention.
2 is an exploded perspective view showing a non-powered negative pressure dustbin according to the present invention by partially cutting it.
3 is an enlarged view showing a negative pressure generating unit of a non-powered negative pressure trash can according to the present invention.
4 is a view for explaining an operating form of a non-powered negative pressure dustbin according to the present invention.
5 is a perspective view showing a fan driving unit of a non-powered negative pressure dustbin according to the present invention.
6 is a cross-sectional side view of a non-powered negative pressure dustbin according to the present invention.
7 is a front cross-sectional view of a non-powered negative pressure dustbin according to the present invention.
8 is a cross-sectional view showing a non-powered negative pressure trash can before opening the lid according to the present invention.
9 is a cross-sectional view showing a state when the lid is opened in the non-powered negative pressure trash can according to the present invention.
10 is a reference diagram for explaining the operation form of the fan drive unit in the non-powered negative pressure dustbin according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The terms used in the present invention are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user or operator, so the definitions of these terms are meanings consistent with the technical details of the present invention. and should be interpreted as a concept.

1 to 10 of the accompanying drawings are diagrams shown to explain a non-powered negative pressure dustbin according to an embodiment of the present invention.

As shown in FIGS. 1 to 10, the non-powered negative pressure dustbin according to the present invention includes an outer cylinder 10 and an inner cylinder 20, a negative pressure generating unit 30, a pedal 40, and a fan driving unit 50, It is done.

The outer cylinder 10 forms an external shape of a square shape, and an open/close type lid 15 is rotatably provided thereon. Specifically, as the outer cylinder bracket 13 is provided on one side of the upper end of the outer cylinder 10 and the lid bracket 17 is provided on the openable lid 15 and connected by a hinge, the openable lid 15 rotates around the hinge You can do it.

The inner cylinder 20 has an open top so that garbage can be put therein, and is accommodated inside the outer cylinder 10, and a pair of openings 25 for air outlet are symmetrically formed on the upper side. And, as shown in FIG. 6, the inner lower part of the outer cylinder 10 is provided with a support part 11 for supporting the inner cylinder 20, and the lower part of the support part 11 has a pedal 40 and a fan driving part (50) is placed.

The negative pressure generator 30 is provided in the outer cylinder 10 to generate negative pressure inside the inner cylinder 20 by using rotation of the fan 31 . Specifically, as shown in FIGS. 2 and 3 , the negative pressure generator 30 includes a fan 31 for discharging air from the inner cylinder 20 to the outside using rotational force, and an opening 25 of the inner cylinder 20 A fan housing 32 formed to a size corresponding to the fan 31 to protect the fan 31, a filter member 33 filtering the air flowing out to the outside, and a filter member 33 provided on the outside of the outer cylinder 10 ) and a fan belt 35 that transmits the rotational force of the belt pulley 35' rotated by the fan driving unit 50 and the filter cover 34 accommodating the fan 31.

At this time, the fan housing 32 is disposed between the inner cylinder 20 and the outer cylinder 10, and is preferably fitted into the opening 25 of the inner cylinder 20 to prevent air from leaking.

In addition, the filter member 33 is preferably made of a HEPA filter capable of removing odorous components and bacteria and viruses, and more preferably is easily replaced by being slidably coupled to the filter cover 34.

The pedal 40 is provided on the lower side of the outer cylinder 10 and is connected to the openable lid 15 by a link member 45 to open the openable lid 15 . In addition, the pedal 40 simultaneously functions to operate the fan driving unit 50 so that the negative pressure is formed in the negative pressure generating unit 30 . To this end, the middle part of the pedal 40 is hingedly fixed to the pedal bracket 41 and is elastically supported by the pedal spring 43 provided at the front end side, and the link member 45 is rotatably connected to the end. .

Therefore, when the pedal 40 is stepped on, the link member moves upward by the principle of a lever, and at the same time, the openable cover 15 is rotated around the hinge to open.

The fan driving unit 50 is operated by the pedal 40 and has a gear train 55' with a large gear ratio to convert pedal effort into rotational force of the fan 31. To this end, as shown in FIGS. 4 to 6 , the fan drive unit 50 includes a drive shaft 51 rotated in a forward or reverse direction to drive the fan 31, and a drive wire having one end connected to the pedal 40 ( A pair of drums 52 provided on the drive shaft 51 so that 52') is wound, and the drive shaft 51 at the moment when the pedal 40 is released by using elastic force while supporting the drive shaft 51 rotatably A pair of gearboxes 55 having a mainspring 52 that rotates in the reverse direction and a gear train 55' that can obtain a high gear ratio by using a gear combination, a drive shaft 51 and a gearbox ( It includes a pair of one-way clutches 54 connecting the input shaft 56 of 55).

At this time, the mainspring 53 is supported by the spring support 53' installed on the bottom of the outer cylinder 10, and the one-way clutch 54 is also supported by the clutch support 54' installed on the bottom of the outer cylinder 10. This allows the drive shaft 51 and the input shaft 56 to rotate without sagging. Of course, a plurality of gears forming the gear train 55' are also rotatably coupled to the gearbox 55.

Accordingly, when the pedal 40 is stepped on, the drive wire 52' is released to rotate the drum 52, and the drive shaft 51 to which the drum 52 is coupled rotates forward to release the mainspring 53. .

When the foot is released from the pedal 40, the drive shaft 51 reversely rotates by the elastic force of the spring spring 53, and the drive wire 52' is wound around the drum 52, and the pedal 40 is driven by the pedal spring. Return to the initial position by (43).

At this time, the one-way clutch 54 transmits rotational force to the input shaft 56 of the gearbox 55 only when the drive shaft 51 rotates in the forward direction, and when the drive shaft 51 rotates in the reverse direction, the gearbox 55 ) It is configured so that rotational force is not transmitted to the input shaft 56.

Therefore, while the pedal 40 returns to the initial position, power is not transmitted to the gearbox 55, and the fan 31 connected to the output shaft 59 by the fan belt 35 also maintains a stopped state, so that air from the outside is supplied. will not infiltrate.

And the gear train 55 'of the gear box 55 is formed by combining a plurality of gears, and it is preferable to form a gear ratio of at least 100 or more. For example, three pairs of spur gears with a gear ratio of 5:1 may be combined in pairs to form a gear ratio of 125:1.

At this time, each gear forming the gear train 55' of both gearboxes 55 is connected to each other by the first transmission shaft 57, the second transmission shaft 58, and the output shaft 59, thereby forming a pair of fans. A belt pulley (35') for rotating the fan belt (35) and allowing the (31) to be operated simultaneously is provided on the output shaft (59).

Accordingly, the treatment of garbage using the non-powered negative pressure garbage bean of the present invention having the above-described configuration will be described as follows.

When the user steps on the pedal 40 to put the trash, the link member 45 moves up and down by the principle of leverage to open the openable lid 15 so that the trash can be put into the inner container 20. At the same time, as shown in (a) of FIG. 10, since the drive wire 52' connected to the pedal 40 is released from the drum 52, the drive shaft 51 to which the drum 52 is coupled moves in the forward direction. At the same time as it rotates, the main spring 53 provided on the driving shaft 51 is released.

And the input shaft 56 of the gearbox 55 connected to the drive shaft 51 by the one-way clutch 54 rotates, and the first transmission shaft 57 and the second transmission shaft 58 are geared to the input shaft 56 And the output shaft 59 rotates in turn. When the output shaft 59 rotates, the fan belt 35 coupled to the belt pulley 35' of the output shaft 59 moves to rotate the fan 31. In addition, as the fan 31 rotates, air inside the inner cylinder is discharged to the outside so that the inside of the inner cylinder 20 maintains a negative pressure state.

Therefore, odors, bacteria, and viruses do not escape through the upper part of the open inner cylinder 20, and odors, bacteria, and viruses in the air discharged to the outside by the fan 31 are removed by the filter member 33 made of a HEPA filter. Only clean air is discharged to the outside.

Then, as shown in (b) of FIG. 10, when the force acting on the pedal 40 is removed, the force acting on the openable lid 15 is removed, and the openable lid 15 descends by its own weight. At the same time as closing, the link member 45 descends.

At the same time, since the elastic force of the pedal spring 43 acts on the pedal 40, the pedal 40 returns to its initial position by the principle of leverage and the elastic force.

At this time, since the mainspring 53 is provided on the driving shaft 51, the driving shaft 51 reversely rotates by the elastic force of the mainspring 53, and the driving wire is connected to the drum 52 provided on the driving shaft 51. (52') is wound.

However, since the drive shaft 51 and the input shaft 56 of the gearbox 55 are connected by the one-way clutch 54, when the drive shaft 51 rotates in reverse, the input shaft 56 of the gearbox 55 does not rotate. will not be Therefore, the fan 31 of the negative pressure generating device 30 also maintains a stopped state so that air from the outside is not introduced.

So far, it has been described that the mainspring 53 is unwound by the driving shaft 51 rotating forward as the pedal 40 descends, but as the pedal 40 descends, the mainspring 53 is wound and the wound spring 53 ) may be configured so that the drive shaft 51 reversely rotates according to the loosening.

The embodiments described above are merely those of the preferred embodiments of the present invention, and are not extremely limited to these embodiments, and various modifications and variations, etc. It will be said that this can be done, and it will be said that it belongs to the technical scope of the present invention.

10: outer cylinder 11: supporting part
13: outer tube bracket 15: retractable lid
17: lid bracket 20: inner cylinder
25: opening 30: negative pressure generating unit
31: fan 32: fan housing
33: filter member 34: filter cover
35: fan belt 35': belt pulley
40: pedal 41: pedal bracket
43: pedal spring 45: link member
50: fan drive unit 51: drive shaft
52: drum 52': drive wire
53: spring spring 53': spring support
54: one-way clutch 54': clutch support
55: gearbox 55': gear train
56: input shaft 57: first transmission shaft
58: second transmission shaft 59: output shaft

Claims (6)

An outer cylinder provided with a rotatably openable lid on the top;
An inner cylinder into which garbage is put and accommodated inside the outer cylinder, and a pair of openings formed on the upper side;
A negative pressure generating unit provided in the outer cylinder to generate negative pressure inside the inner cylinder by using rotation of the fan;
a pedal connected to the retractable lid by a link member to open the retractable lid and simultaneously form a negative pressure in the negative pressure generating unit; and
A non-powered negative pressure dustbin comprising a; fan driving unit having a gear train having a large gear ratio to convert pedal effort into rotational force of the fan.
The method of claim 1,
The negative pressure generator includes a fan that discharges air from the inner cylinder to the outside using rotational force, a fan housing formed in a size corresponding to the opening of the inner cylinder to protect the fan, a filter member that filters the air flowing out to the outside, and A non-powered negative pressure dustbin comprising a filter cover provided outside and accommodating the filter member, and a fan belt that transmits rotational force of the belt pulley rotated by the fan driving unit to the fan.
The method of claim 2,
The filter member is made of a HEPA filter capable of removing odorous components and germs, and is slidingly coupled to the filter cover for replacement.
The method of claim 1,
The pedal is a non-powered sound pressure trash can, characterized in that the middle part is hingedly fixed to the pedal bracket, elastically supported by the pedal spring provided at the front end side, and the link member is rotatably connected to the end end.
The method of claim 1,
The fan drive unit rotatably supports a drive shaft that rotates in the forward or reverse direction to drive the fan, a pair of drums provided on the drive shaft so that the drive wire, one end of which is connected to the pedal, is wound, and the drive shaft rotatably and using elastic force. A pair of gearboxes equipped with a mainspring that rotates the driveshaft in the opposite direction the moment the pedal is released, a gear train that can obtain a high gear ratio by using a gear combination, and a pair of gearboxes that connect the driveshaft and the input shaft of the gearbox Includes a one-way clutch;
The one-way clutch transmits rotational force to the input shaft only when the drive shaft rotates in the forward direction and prevents rotational force from being transmitted to the input shaft when the drive shaft rotates in the reverse direction.
The method of claim 5,
Each gear forming the gear train of both gearboxes is connected to each other by a first transmission shaft, a second transmission shaft, and an output shaft,
A non-powered negative pressure trash can, characterized in that the belt pulley for rotating the fan belt is provided on the output shaft.

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