KR101880461B1 - A Degassing Apparatus - Google Patents

A Degassing Apparatus Download PDF

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Publication number
KR101880461B1
KR101880461B1 KR1020160015520A KR20160015520A KR101880461B1 KR 101880461 B1 KR101880461 B1 KR 101880461B1 KR 1020160015520 A KR1020160015520 A KR 1020160015520A KR 20160015520 A KR20160015520 A KR 20160015520A KR 101880461 B1 KR101880461 B1 KR 101880461B1
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KR
South Korea
Prior art keywords
pump case
circumferential surface
shaft
case
outer circumferential
Prior art date
Application number
KR1020160015520A
Other languages
Korean (ko)
Other versions
KR20170094595A (en
Inventor
박현우
김형일
장헌재
Original Assignee
엘지전자 주식회사
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Priority to KR1020160015520A priority Critical patent/KR101880461B1/en
Publication of KR20170094595A publication Critical patent/KR20170094595A/en
Application granted granted Critical
Publication of KR101880461B1 publication Critical patent/KR101880461B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2038—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum with means for establishing or improving vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
    • B65D51/1683—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element by actuating a separate element in the container or closure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/02—Collars or rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
    • F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/10—Spiral springs with turns lying substantially in plane surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2205/00—Venting means
    • B65D2205/02—Venting holes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

A deaerator according to an embodiment of the present invention includes a pump case including a side wall portion and an upper wall portion integrally formed on an upper surface of the side wall portion and having a plurality of exhaust holes, and an upper portion is slid on an inner circumferential surface of the pump case A piston unit which is partitioned into upper and lower parts of an inner space of the pump case and which is seated on a lid such that a lower end thereof surrounds a check valve provided in a lid of the hermetically sealed container, An elastic member mounted between the pump case and the piston unit to provide a restoring force for pushing the pump case upward when the pump case is lowered, And a plurality of exhaust holes formed in the upper wall portion of the housing It includes a cap cover.

Description

A Degassing Apparatus

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a degassing apparatus, and more particularly, to a degassing apparatus which is detachably mounted on a lid of a hermetically sealed container to discharge air inside the hermetically sealed container to the outside.

Generally, foodstuffs such as various vegetables and fish have a problem that they are easily oxidized and corrupted due to contact with microorganisms contained in the air or other harmful substances such as oxygen when they come into contact with the outside air.

In addition, in the case of fermented foods, the propagation of the microorganisms is further activated, and the fermentation and aging speed of the food is promoted too quickly, and thus there is a poor shelf life.

On the other hand, in order to delay the fermentation and decay of food, it is most preferable to block the inside of the container filled with the contents from the outside, and to keep the inside of the container in a vacuum state.

To this end, it has been developed to provide a degassing device capable of extracting air inside the sealed container.

As an example of such a hermetically sealed container, Japanese Patent Application Laid-Open No. 10-1144500 discloses a vacuuming device that removes the air inside the vacuum container to make it into a vacuum state.

The vacuum cosmetic comprises a cylinder member having a guide shaft disposed at a central portion of an inner space, a first O-ring for opening and closing the first space and the second space while being vertically moved in accordance with a moving direction of the cylinder member And a piston rod having a hollow rod portion extending downward from a central portion of the split opening and closing portion and having a guide groove for guiding the lifting and lowering of the guide shaft, wherein the cylinder member is provided with a first And a second air hole communicating the second space with the outside is formed in the hollow rod portion.

In addition, a second O-ring is provided at an edge of the through-hole to block the outer surface of the rod portion and the cylinder member, and the first space is elastically supported between the upper inner surface of the cylinder member and the divided opening / Spring is installed.

The guide shaft extending downward from the upper wall of the cylinder member is guided so as to be moved up and down in the hollow shaft portion of the split opening and closing portion.

A protrusion is formed at a lower end portion of the guide shaft so that the cylinder member can be held in a state of being not raised at the maximum lowering position by being caught by the engagement protrusion formed at the lower end portion of the hollow shaft portion.

However, since the length of the piston mechanism is determined according to the length of the guide shaft, and the diameter of the hollow shaft portion is enlarged so that the guide shaft can be inserted, the amount of air that can be degassed by one pumping This is a problem that is limited.

In addition, since the first vent hole is formed in the upper wall of the cylinder member, there is a high possibility that the small hole is clogged, and when the user pums the first vent hole, the device may not be operated. The air is discharged upward toward the user's hand, which may give a bad feeling to the user.

Further, after the vacuum evaporator is assembled, it is difficult for the user to disassemble the vacuum evaporator, so that the inside of the vacuum cleaner can not be cleaned.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a deaerator which can be detachably attached to a lid of a container, And it is an object of the present invention to provide a degassing apparatus which is insufficient.

It is another object of the present invention to provide a deaerator capable of maintaining a maximum falling state of a pump case without providing a guide shaft.

It is another object of the present invention to provide a deaerator having an exhaust hole formed in an upper wall of a pump case to allow air to be discharged smoothly while discharging air to the outside.

Further, it is an object of the present invention to provide a degassing apparatus that can be easily disassembled and assembled by a user, thereby enabling internal cleaning from time to time.

According to an aspect of the present invention, there is provided a deaerator comprising: a pump case having a side wall part and an upper wall part integrally formed on an upper surface of the side wall part and having a plurality of exhaust holes; A piston unit that slides on an inner circumferential surface of the case to divide the inner space of the pump case into upper and lower portions and which is seated on a lid such that a lower end thereof surrounds a check valve provided in a lid of the hermetically sealed container, A lower cover coupled to the lower surface of the piston unit and having a shaft hole slidable on an outer circumferential surface of the piston unit, a lower cover mounted between the pump case and the piston unit to provide a resilient force for pushing the pump case upward when the pump case is lowered And a plurality of exhaust holes formed in the upper wall portion of the pump case, And a cap cover for guiding to be discharged laterally.

The exhaust hole is formed in the upper wall portion of the pump case, but the cap cover is mounted thereon to guide the air to be discharged laterally, so that the air inside the sealed container is directly discharged by the user's hand to prevent discomfort.

Further, since the lower cover is detachably fastened to the inside of the lower end portion of the piston unit, the user can easily disassemble and assemble the degassing apparatus.

Wherein the piston unit includes a lower case including a bottom plate seated on a lid to surround the check valve and a cylinder portion extending upward from the bottom plate, And a shaft including a plate portion integrally formed at an upper end of the shaft portion.

The outer circumferential surface of the plate portion of the shaft provides a sliding support surface with respect to the inner circumferential surface of the piston unit and the outer circumferential surface of the cylinder portion of the lower case provides a sliding support surface with respect to the inner circumferential surface of the lower cover.

In addition, a gap may be formed between the inner peripheral surface of the cylinder portion of the lower case and the outer peripheral surface of the shaft portion of the shaft to provide an air flow path.

The deaerator includes an upper o-ring mounted on an outer circumferential surface of a plate portion of the shaft and selectively opening and closing a gap between an outer circumferential surface of the plate portion and an inner circumferential surface of the pump case, And a lower O-ring for sealing the gap between the outer peripheral surface and the inner peripheral surface of the lower cover.

The upper O-ring not only hermetically closes the plate portion sliding relative to the pump case, but also selectively opens a gap therebetween to form a passage through which the air moves.

On the other hand, the lower O-ring slides on the outer circumferential surface of the cylinder portion of the lower case together with the lower cover, and always seals the gap therebetween.

Preferably, the cap cover has a plurality of hooks extending downward from an outer circumferential portion of the lower surface thereof, and the upper wall portion of the pump case has a plurality of hook insertion holes into which the plurality of hooks are inserted and coupled.

Since the hook is elastically deformed and coupled only by inserting the hook of the cap cover into the hook inserting hole, the cap cover can be assembled very easily to the upper wall portion of the pump case. At this time, a predetermined gap is formed between the lower end of the cap cover and the upper wall portion of the pump case, and air can be discharged laterally through the gap.

Preferably, the shaft further includes a plurality of locking protrusions formed upwardly protruding from the upper surface of the plate portion, and the plurality of locking protrusions are inserted and fixed to the plurality of exhaust holes to maintain the pump case in a lowered state .

The exhaust hole may be formed larger than the hook insertion hole. The exhaust hole is used as a passage through which air in the pump case is discharged when the degassing apparatus is used. However, when the degassing apparatus is stored, the height of the degassing apparatus can be maintained in a contracted state by rotating the stopping projection of the shaft by inserting the exhaust hole.

The lower cover is preferably formed with a thread on the outer circumferential surface thereof and coupled with a thread formed on the inner circumferential surface of the lower end of the pump case.

Accordingly, the user can very easily engage with the lower cover by fitting the lower cover to the lower end of the pump case.

Preferably, the inner diameter of the inner circumference of the pump case is increased to form a stepped portion, and a protruding rib formed with a larger outer diameter at the lower end of the outer circumference of the lower cover is inserted into the stepped portion of the pump case.

A gap is formed between the thread of the lower cover and the thread of the pump case so that the possibility of air leakage is low. However, since the stepped portion of the lower cover is closely attached to the stepped portion of the pump case, .

And an O-ring holder inserted into a step formed in the lower portion of the shaft of the lower cover to support the lower O-ring.

It is easier to assemble the lower o-ring when the lower o-ring is mounted using the o-ring holder, and the lower o-ring can be closely contacted, as compared with the case where the groove is formed in the inner circumferential surface of the lower cover, The gap can be sealed more securely.

It is preferable that the lower cover includes a mounting rib on an inner circumferential surface of the step portion, and the O-ring holder has a mounting groove on the outer circumferential surface thereof for inserting the mounting rib.

The mounting ribs of the lower cover and the mounting grooves of the O-ring holder can prevent the O-ring holder from being easily mounted on the lower cover and falling down from the lower cover.

And the shaft portion of the shaft is fastened to the bottom plate of the lower case by a screw.

The shaft and the lower case can be firmly coupled by screwing, and can be easily disassembled and assembled.

The lower case may further include a plurality of vent grooves formed in an upper end portion of the cylinder portion.

The air rising from the lower side through the plurality of vent grooves can be easily introduced into the space formed below the plate portion.

The shaft may further include a locking protrusion provided at an upper end of an outer circumferential surface of the shaft portion and inserted into at least one of the plurality of vent grooves.

Since the engaging projection is engaged to be inserted into the ventilation groove, it is possible to prevent the shaft from rotating relative to the lower case while the degassing apparatus is in use and the screw being loosened.

It is preferable that the elastic member is a conical spring whose diameter gradually decreases toward the upper side.

Since the elastic member is formed by the conical spring, when the elastic member is contracted, the upper end can be disposed inside the lower end thereof, so that the elastic member can be contracted very small, The lower surface can be lowered to such a degree that it is almost in contact with the upper end of the plate portion of the shaft, so that the stroke of the piston can become very large.

The lower case may further include a cylindrical rib extending downward from a bottom surface of the bottom plate and having a space surrounding the check valve therein.

The cylindrical rib serves to guide its seating position when the user places the deaerator on the lid so as to surround the check valve.

According to the deaerator of the present invention, since there is no guide shaft in the pump case, the amount of air that can be degassed by one pumping can be increased accordingly.

Further, even without the guide shaft, the pump case can be fixed at the position where it is maximally lowered, and the pump case can be smoothly moved up and down.

In addition, since the exhaust hole of the deaerator is formed largely in the upper wall of the pump case, the exhaust air is smoothly discharged, and further, the cap cover for covering the exhaust hole is further provided so that air discharged through the exhaust hole is discharged to the outside .

And, the user can easily disassemble and assemble the degassing apparatus, so that the inside can be cleaned from time to time.

1 is a perspective view showing a degassing apparatus of the present invention.
Fig. 2 is a cross-sectional view showing a check valve provided in a lid of the hermetically sealed container and the deaerator of Fig. 1;
3 is an exploded perspective view showing a degassing apparatus.
4 is a perspective view (a), a front view (b), and a bottom view (c) showing the cap cover.
5 is a perspective view (a) and a top view (b) showing the pump case.
6 is a perspective view (a), a front view (b), a sectional view (c) showing a shaft and a perspective view (d) showing a deaerator in a contracted state.
7 is a sectional view (a) of the pump case and a perspective view (b) of the lower cover.
8 is a sectional view (a) of the pump case and a perspective view (b) showing the lower o-ring and o-ring holder.
9 is a view showing an operating state when the degassing apparatus is depressed.
10 is a view showing an operating state when the degassing apparatus is depressed and restored.

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

1, a degassing apparatus 100 according to an embodiment of the present invention includes a pump case 180 and a piston unit sliding on an inner circumferential surface of a pump case. The piston unit may include a lower case 110 and a shaft 150 as described later. In FIG. 1, only the lower case 110 is shown.

A cap cover 190 is mounted on the upper surface of the pump case 180. Air can be discharged through the gap between the cap cover 190 and the pump case 180 when the degassing apparatus 100 is operated.

A specific structure of the degassing apparatus 100 will be described with reference to Figs. 2 to 8. Fig.

The pump case 180 may include a side wall portion 181 and an upper wall portion 183 integrally formed on an upper surface of the side wall portion and having a plurality of exhaust holes 189.

Therefore, the pump case 180 may be formed in the shape of a cylindrical cylinder having a lower surface opened.

The inner space of the pump case 180 is vertically partitioned by a piston unit that slides on the inner circumferential surface of the pump case 180.

The upper portion of the piston unit slides on the inner circumferential surface of the pump case 180 to partition the inner space of the pump case vertically and the lower end of the piston unit is seated on the lid to surround the check valve 10 provided in the lid of the closed container. The piston unit has an air passage (C) formed up and down from a lower end to a vicinity of an upper end.

Specifically, the piston unit may include a lower case 110 constituting a lower end portion and an intermediate portion outer side surface, and a shaft 150 constituting an inner side surface and an upper end portion of the intermediate portion.

The lower case 110 may include a bottom plate 111 seated on the lid to surround the check valve 10 and a cylinder portion 116 extending upward from the bottom plate.

The cylinder portion 116 may be formed in a hollow pipe shape so that the shaft portion 151 of the shaft 150 may be inserted therein.

The shaft 150 includes a shaft portion 151 inserted into the cylinder portion 116 and a plate portion 155 integrally formed at an upper end of the shaft portion.

The outer diameter of the shaft portion 151 is smaller than the inner diameter of the cylinder portion 116 so that a gap C may be formed between the outer circumferential surface of the shaft portion 151 and the inner circumferential surface of the cylinder portion 116. The clearance C can form an air flow path through which the air sucked into the deaerator is moved from the inside of the closed container.

The shaft portion 151 of the shaft 150 is preferably fastened to the bottom plate 111 of the lower case 110 by a screw S. [ Accordingly, the inside of the deaerator 100 is sealed and the shaft 150 and the lower case 110 are firmly fixed, and the user can easily disassemble the same.

2, a screw coupling hole 153 is formed at a lower end of the shaft 150 so that the screw S is inserted through a hole formed in the bottom plate 111 of the lower case 110 And can be inserted and fastened.

As shown in FIGS. 3 and 6, the shaft portion 151 has a smaller outer diameter as it goes downward, and has a screw engagement portion 152 May be provided.

In addition, a center hole 154 is formed in the shaft portion 151, so that the material of the shaft 150 manufactured by injection molding can be saved.

The shaft portion 151 of the shaft 150 may have a constant thickness. However, the outer circumferential surface of the shaft portion 151 may be slightly inclined so that the outer diameter gradually decreases as the shaft portion 151 goes downward.

The lower end of the shaft portion 151 is fixed to the bottom plate 111 by the screw S because the upper end of the outer circumferential surface of the shaft portion 151 is formed so as to substantially contact the upper end of the inner circumferential surface of the cylinder portion 116 The upper end portion of the shaft portion 151 can also be supported at the upper end of the inner circumferential surface of the cylinder portion 116.

The threaded portion 152 of the shaft portion 151 is formed thicker than the portion where the center hole 154 is formed so that the threaded portion 152 is screwed onto the bottom plate 111 by the screw S. [ It can be fastened with high strength.

At this time, if the upper end of the threaded fastening part 152 is not formed to be stepped, the thickness of the side wall of the threaded fastening part 152 is rapidly increased to shrink and deform during injection molding.

Therefore, as described above, the screw fastening portion 152 is prevented from being deformed after injection molding because the upper end of the screw fastening portion 152 is formed to be stepped so that the thickness of the side wall is uniform.

The plate portion 155 of the shaft 150 is formed in the shape of a circular plate extending horizontally at the upper end of the shaft portion 151.

When the pump case 180 slides on the outer circumferential surface of the plate portion 155, the plate portion 155 divides the space inside the pump case 180 up and down.

The check valve 10 includes a mounting shaft portion 12 inserted into a through hole formed in a lid (not shown) of a hermetic container (not shown), and a valve body 12 integrally formed in the form of a parachute at the upper end of the mounting shaft portion 12. And may include a body portion 14.

The mounting shaft portion 12 may be formed such that its middle portion is reduced in diameter to a size corresponding to the inner diameter of the through-hole of the lid, and then enlarged again, and inserted into the through hole of the lid.

Since the check valve 10 is made of a material that can be elastically deformed like rubber, the lower portion of the mounting shaft portion 12, which is larger than the through-hole, can be inserted into the through-hole.

The outer circumferential portion of the valve body portion 14 is in close contact with the upper surface of the lid of the hermetically sealed container. When the pressure inside the hermetically sealed container is larger than the external pressure above the valve body portion 14, At least a part of the outer peripheral portion is lifted up, and the air inside the sealed container can be discharged to the outside through the vent hole formed in the lid.

The bottom plate 111 of the lower case 110 may be provided with a cylindrical rib 114 extending downward from the bottom surface thereof and provided with a space surrounding the check valve 10 therein.

The lid of the hermetically sealed container may be provided with a concave portion at a portion where the check valve 10 is mounted, and the cylindrical rib 114 may be disposed inside the concave portion of the lid.

The cylindrical rib 114 informs the user of the position where the degassing apparatus 100 is in close contact with the user and allows the user to closely contact the precise position of the lid 100 when the user uses the degassing apparatus 100. That is, the user has to place the cylindrical rib 114 on the lid so that the check valve 10 is disposed inside the cylindrical rib 114. When the cylindrical rib 114 is disposed inside the recess of the lid, 10 may be arranged inside the cylindrical rib 114. [

At this time, since the cylindrical rib 114 is formed to have a length smaller than the depth of the concave portion of the lid, the cylindrical rib 114 does not contact the concave bottom surface of the lid.

Instead, the bottom surface of the bottom plate 111 and the top surface of the lid are in surface contact with each other outside the cylindrical ribs 114.

When the user depresses the cap cover 190 to lower the pump case 180, the check valve 10 is opened so that the air inside the closed container flows into the degassing apparatus 100. In this case, the degassing apparatus 100, Sealing is necessary.

At this time, if the bottom surface of the bottom plate 111 and the top surface of the lid are smoothly formed, the bottom surface of the bottom plate 111 or the bottom of the cylindrical rib 114 is made of an elastic material such as rubber The gap between the bottom plate 111 and the lid can be sufficiently sealed even if a gasket is not separately provided.

The lower cover 140 is coupled to the lower end of the side wall portion 181 of the pump case 180. The lower cover 140 has a shaft hole 142 slidably moved on the outer circumferential surface of the cylinder portion 116 at the center of a circular plate portion 141 having a predetermined thickness.

The lower cover 140 is preferably formed with a thread 144 on its outer circumferential surface and coupled with a thread 182 formed on the inner circumferential surface of the lower end of the pump case 180.

Accordingly, the pump case 180 and the lower cover 140 are hermetically sealed, tightly fastened, and easily disassembled or assembled.

A space is formed between the plate portion 155 of the shaft 150 and the lower cover 140 when the user pushes down the cap cover 190 to lower the pump case 180, The space also becomes larger as the temperature is lowered further.

2, a plurality of air holes (not shown) communicating with a gap C formed outside the shaft portion 151 of the shaft 150 are formed in a central portion of the bottom plate 111 of the lower case 110, 112 are formed in the vertical direction.

Two or four vent holes 112 may be formed in contact with the inner circumferential surface of the cylinder portion 116.

2 and 3, a plurality of ventilation grooves 117 cut in a semicircular shape may be formed at the upper end of the cylinder portion 116 of the lower case 110. As shown in FIG.

When the check valve 10 mounted on the lid of the hermetically sealed container is opened to discharge the air inside the container, the air flows upward along the gap C through the plurality of vent holes 112, And may be introduced into the space between the plate portion 155 of the shaft 150 and the lower cover 140 through the ventilation groove 117.

The shaft 150 may further include a locking protrusion 151a provided at an upper end of the outer circumferential surface of the shaft portion 151 and inserted into at least one of the plurality of ventilation grooves 117.

For example, four vent holes 112 may be formed and two locking protrusions 151a may be formed. In this case, when the shaft 150 is fastened to the lower case 110 with the screws S, Two locking projections 151a can be inserted into two of the four vent holes 112 to be engaged.

Then, during the use of the degassing apparatus, the shaft 150 may rotate relative to the lower case 110 to prevent the screw S from being released.

The pump case 180 is disposed between the plate portion 155 of the shaft 150 and the upper wall portion 183 of the pump case 180. The pump case 180 is elastically deformed to provide a resilient force to push the pump case upward when the pump case 180 is lowered. Member 170 is mounted.

A recessed portion for supporting the upper end of the elastic member 170 is formed on the lower surface of the upper wall portion 183 of the pump case 180 to prevent the elastic member 170 from being detached from its mounting position when the elastic member 170 contracts or expands. And a recessed portion for supporting a lower end of the elastic member 170 may be formed on an upper surface of the plate portion 155 of the shaft 150.

The concave portion of the upper wall portion 183 and the concave portion of the plate portion 155 can prevent the elastic member 170 from being detached from the mounted position even if the elastic member 170 repeatedly shrinks and expands.

It is preferable that the elastic member 170 is a conical spring whose contour diameter gradually decreases toward the upper side.

In the case of a cylindrical spring having the same diameter, since it is continuously stacked when compressed, the maximum height of the pump case 180 can be limited even if it is contracted to its maximum.

On the other hand, in the case of the conical spring, since the upper end can be arranged at the same height as the lower end inside the lower end when compressed, the height of the spring at the time of maximum compression can be very small. The elastic member 170 can be compressed until the upper wall portion 183 of the pump case 180 is very close to the upper end of the plate portion 155 of the shaft 150, May be very large.

Since the elastic member 170 is a conical spring, the concave diameter of the upper wall portion 183 into which the upper end of the elastic member 170 is inserted is smaller than that of the plate portion 155 into which the lower end of the elastic member 170 is inserted And may be formed smaller than the concave portion.

An upper O-ring 160 is mounted on the outer circumferential surface of the plate portion 155 of the shaft 150 to selectively open and close a gap between the outer circumferential surface of the plate portion 155 and the inner circumferential surface of the pump case 180.

The upper O-ring 160 is mounted on an O-ring groove 157 formed on an outer circumferential surface of the plate portion 155. The O-ring groove 157 has a vertical height that is slightly larger than a vertical height of the upper O-

The outer circumferential surface of the upper O-ring 160 is formed to be slightly larger than the inner diameter of the pump case 180 so as to be pressed on the inner circumferential surface of the pump case 180.

Thus, when the pump case 80 is lowered, the upper O-ring 160 moves downward to close the gap between the outer circumferential surface of the plate portion 155 and the inner circumferential surface of the pump case 180.

On the contrary, when the pump case 80 rises, the upper o-ring 160 is also lifted up to open the gap, and the air in the lower space of the plate portion 155 can flow into the upper space through the gap .

2, 3, and 6, the O-ring groove 157 is formed between the plate portion 155 of the shaft 150 and the upper surface of the plate portion 155, The upper rib 156 may be integrally formed.

The upper rib 156 may include a cylindrical vertical portion extending upward from the upper surface of the plate portion 155 and a horizontal portion extending outward from the upper end of the vertical portion.

A plurality of vent holes 158 may be formed in the horizontal portion of the upper rib 156. When the pump case 80 rises, the upper O-ring 160 moves up to close the gap above the pump case 80, so that the air coming through the lower gap can be moved up through the plurality of air holes 158 .

A lower o-ring 130 is mounted on the inner circumferential surface of the lower cover 140 to seal the gap between the outer circumferential surface of the cylinder portion 116 of the lower case 110 and the inner circumferential surface of the lower cover 140.

Unlike the upper O-ring 160, the lower O-ring 130 always blocks a gap between the outer circumferential surface of the cylinder portion 116 of the lower case 110 and the inner circumferential surface of the lower cover 140, .

The lower cover 140 may be integrally formed with an O-ring groove on the inner circumferential surface of the lower cover 140. However, for convenience of assembly and reliability of the hermetic seal, an O-ring holder 120 ) Is more preferable.

2, 3, and 8, the O-ring holder 120 is inserted into a step 146 formed below the shaft hole 142 of the lower cover 140, .

The O-ring holder 120 may be formed in the shape of a ring formed at the center of the shaft hole through which the cylinder portion 116 passes, and may have one end face in the shape of a letter "B".

That is, the O-ring holder 120 may include a bottom wall portion 122 formed with the shaft hole and a side wall portion 124 extending upward from an edge of the bottom wall portion 122.

The lower o-ring 130 may be mounted so as to be pressed into a groove formed between the bottom wall portion 122 and the side wall portion 124 and the upper surface of the step portion 146 of the lower cover 140.

The lower cover 140 includes a mounting rib 147 protruding inward from the inner circumferential surface of the step portion 146. The O-ring holder 120 has a mounting groove 147 on which the mounting rib 147 is inserted, (125).

The mounting rib 147 is inserted into the mounting groove 125 when the O-ring holder 120 is mounted on the step 146 of the lower cover 140, so that the lower cover 140 is moved up and down The O-ring holder 120 can be fixed without falling downward.

The cap cover 190 is coupled to cover a plurality of exhaust holes 189 formed in the upper wall portion 183 of the pump case 180.

The cap cover 190 includes a plurality of hooks 195 extending downward from the outer circumferential surface of the lower surface of the cap cover 190 to mount the cap cover 190 on the upper wall portion 183 of the pump case 180, The upper wall portion 183 of the pump case 180 may have a plurality of hook insertion holes 185 into which the plurality of hooks are inserted and coupled.

As shown in FIGS. 2 to 5, the hooks 195 and the hook insertion holes 185 may be formed in four, but the number is not limited thereto.

The central portion of the upper wall portion 183 of the pump case 180 is formed higher than the rim portion and the recess 184 may be formed between the central portion and the rim portion to have a height lower than the circumference.

The central portion of the upper wall portion 183 may correspond to the concave portion where the upper end portion of the elastic member 170 is inserted.

The plurality of exhaust holes 189 and the hook inserting holes 185 are formed to be spaced apart from each other in the concave portion 184 and the exhaust holes 189 are disposed between the two hook inserting holes 185. [ Respectively.

The hook 195 protrudes from the lower end of the hook 195 to the outside of the hook so that the hook 195 is caught by the lower surface of the recess 184 after passing through the hook insertion hole 185.

The plurality of exhaust holes 189 are formed to be larger in length and width than the hook insertion holes 185, so that air can be smoothly discharged.

The cap cover 190 may include a circular disc portion 191 and a side wall portion 192 extending downward from a bottom edge portion of the disc portion 191.

The plurality of hooks 195 may be spaced apart from each other on a lower surface of the side wall portion 192.

A plurality of support ribs 193 may be integrally formed on the lower surface of the side wall 192 of the cap cover 190 beside the plurality of hooks 195.

The plurality of support ribs 193 are supported on the upper surface of the concave portion 184 when the cap cover 190 is mounted on the upper wall portion 183 of the pump case 180.

The lower surface of the side wall portion 192 of the cap cover 190 is spaced apart from the upper surface of the recess 184 by a predetermined distance from the support ribs 193, A gap can be formed so as to be spaced apart by a height, and air can be discharged through this gap.

Since the cap cover 190 is coupled to the upper surface of the pump case 180 so as to cover the plurality of exhaust holes 189, even if the size of the exhaust hole is large, the cap cover 190 is not exposed to the outside.

Since the cap cover 190 is mounted on the upper surface of the pump case 180 so as to be spaced from the upper surface of the pump case 180 and air is discharged laterally through the gap therebetween, the air is discharged upward toward the user's hand. Can be prevented.

The shaft 150 may further include a plurality of locking protrusions 159 protruding upward from the upper surface of the plate portion 155.

The plurality of latching protrusions 159 may extend upward from the upper ribs 156 of the plate portion 155 and may be bent in a tangential direction.

That is, the plurality of locking protrusions 159 may have a ring shape in which a groove is formed on one side.

In this embodiment, the number of the engagement protrusions 159 is the same as the number of the exhaust holes 189, but the number of the engagement protrusions 159 varies depending on the number of the exhaust holes 189. And may be formed to be equal to or less than the exhaust hole 189.

The plurality of locking protrusions 159 are respectively hooked to one side of the plurality of exhaust holes 189 by passing the plurality of exhaust holes 189 from below to after rotating so that the elastic member 170 The pump case 180 is lowered even if the restoring force for raising the case 180 is applied, so that the deaerator can be maintained in a contracted state.

The user may cause the plurality of locking projections 159 to enter the plurality of exhaust holes 189 when the pump case 180 is fully lowered and then rotate the pump case 180 by a predetermined angle, (159) is caught on one side of the exhaust hole (189).

6 (d), the pump case 180 can be fixed to maintain the lowered state. Therefore, when the degassing apparatus 100 is stored, Can be made very small.

The operating relationship of the degassing apparatus of the present invention will be described with reference to Figs. 9 and 10. Fig.

First, the user places the deaerator 100 on the check valve 10 mounted on the lid of the closed container.

9 (a), when the user presses the cap cover 190, the pump case 180 descends and the lower case 110, the lower cover 140, And the space enclosed by the pump case 180 becomes larger.

A space above the lower cover 140 in the pump case 180 is referred to as a first space S1 and a space below the lower cover 140 in the pump case 180 The space is referred to as a second space S1.

When the pump case 180 is lowered, the first space S1 becomes smaller and the second space S1 becomes larger.

At this time, the upper O-ring 160 is pushed downward by the pump case 180 to seal the gap therebetween.

As the second space S1 becomes larger, the pressure inside the second space S1 becomes lower, so that the check valve 10 is opened.

Then, the air in the container is discharged and flows into the second space S2 through the vent hole 112, the gap C, and the vent groove 117 in order.

At the same time, since the first space S1 becomes smaller, the air inside the first space S1 is discharged to the outside through the exhaust hole 189 of the pump case 180. [

When the pump case 180 is lowered to the bottom dead center, the state shown in FIG. 10 (a) is obtained.

Next, when the user depresses the force pressing the cap cover 190, the elastic member 170 pushes the pump case 180 upward.

At this time, as shown in FIG. 10 (b), the upper O-ring 160 is pushed upward by the pump case 180 to open a gap below it.

Also, as the pump case 180 rises, the first space S1 becomes larger and the second space S2 becomes smaller.

Since the pressure inside the second space S2 becomes smaller as the second space S2 becomes smaller, the air inside the first space S1 flows through the gap below the upper O-ring 160 and the vent hole 158, .

Then, since the exhaust hole 189 is always open, air in the first space S1 can be discharged until the pressure becomes equal to the outside of the degassing apparatus.

The deaerator 100 of the present invention allows the air inside the closed container to be introduced into the deaerator when the user depresses the device. Therefore, the pressing force between the bottom plate 111 of the lower case 110 and the lid of the closed container, So that the space between the bottom plate 111 and the lid can be sealed.

Therefore, in order to seal the space between the bottom plate 111 and the lid, air can be sufficiently sealed so as not to leak even without a separate structure such as a gasket.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Changes will be possible.

10: check valve 100: degassing device
110: lower case 111: bottom plate
116: cylinder part 120: o-ring holder
130: Lower O-ring 140: Lower cover
150: shaft 151: shaft
155: plate portion 160: upper o-
170: elastic member 180: pump case
190: cap cover

Claims (14)

A pump case including a side wall part and an upper wall part integrally formed on an upper surface of the side wall part and having a plurality of exhaust holes;
The upper part of which is slid up and down on the inner circumferential surface of the pump case to divide the inner space of the pump case into upper and lower parts and the lower end part of which is seated on the lid so as to surround the check valve provided on the lid of the hermetically sealed container, ;
A lower cover coupled to an opened lower surface of the pump case and having a shaft hole slidable on an outer circumferential surface of the piston unit;
An elastic member mounted between the pump case and the piston unit to provide a restoring force for pushing the pump case upward when the pump case is lowered; And
And a cap cover coupled to cover a plurality of exhaust holes formed in an upper wall portion of the pump case to guide air to be discharged laterally,
Wherein the piston unit comprises:
A lower case including a bottom plate seated on the lid to surround the check valve, and a cylinder portion extending upward from the bottom plate;
A shaft inserted into the cylinder so as to form a gap between the shaft and the inner surface of the cylinder, and a plate integrally formed at an upper end of the shaft; And
And one or more locking protrusions protruded upward from the upper surface of the plate portion,
Wherein the locking protrusions are formed in the exhaust hole when the pump case is lowered with respect to the piston unit and the upper portion is bent in the circumferential direction so as to be fixed to one side of the exhaust hole when the pump case is rotated Degassing device. delete The method according to claim 1,
The degassing apparatus includes:
An upper o-ring mounted on an outer circumferential surface of a plate portion of the shaft to selectively open and close a gap between an outer circumferential surface of the plate portion and an inner circumferential surface of the pump case; And
And a lower o-ring mounted on an inner circumferential surface of the lower cover to seal a gap between an outer circumferential surface of the cylinder portion of the lower case and an inner circumferential surface of the lower cover. The method according to claim 1,
Wherein the cap cover has a plurality of hooks extending downward from an outer peripheral portion of the lower surface thereof,
Wherein the upper wall portion of the pump case has a plurality of hook insertion holes into which the plurality of hooks are inserted and coupled. delete The method according to claim 1,
Wherein the lower cover is formed with a thread on the outer circumferential surface thereof and is coupled with a thread formed on the inner circumferential surface of the lower end of the pump case. The method according to claim 6,
An inner diameter of the inner circumferential surface of the pump case is increased to form a stepped portion,
Wherein a protruding rib formed with a larger outer diameter at the lower end of the outer circumferential surface of the lower cover is inserted into the stepped portion of the pump case. The method of claim 3,
Further comprising an O-ring holder inserted in a step formed in a lower portion of the shaft hole of the lower cover to support the lower O-ring. 9. The method of claim 8,
Wherein the lower cover has a mounting rib on an inner circumferential surface of the step portion,
Wherein the o-ring holder has a mounting groove on the outer circumferential surface thereof, into which the mounting rib is inserted. The method according to claim 1,
And the shaft portion of the shaft is fastened to the bottom plate of the lower case by a screw. The method according to claim 1,
Wherein the lower case further includes a plurality of vent grooves formed in an upper end portion of the cylinder portion. 12. The method of claim 11,
Wherein the shaft further comprises a stopper provided at an upper end of an outer circumferential surface of the shaft portion and inserted into at least one of the plurality of vent grooves. The method according to claim 1,
Wherein the elastic member is a conical spring whose diameter gradually decreases toward the upper side. The method according to claim 1,
Wherein the lower case further includes a cylindrical rib extending downward from a lower surface of the bottom plate and having a space surrounding the check valve therein.
KR1020160015520A 2016-02-11 2016-02-11 A Degassing Apparatus KR101880461B1 (en)

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KR101974540B1 (en) * 2017-11-24 2019-05-02 씨티엠(주) Portable evacuator
US10526116B1 (en) * 2018-09-28 2020-01-07 Auto Cleaning Toilet Seat USA L.L.C Pressure-reducing bottle cover

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110110127A (en) * 2008-12-23 2011-10-06 캡테크 엘티디. Improved pump lid and containers employing such
KR101144500B1 (en) * 2012-03-16 2012-05-11 김상영 Vacuum apparatus
KR20140002773U (en) * 2012-10-29 2014-05-09 손재봉 Bottle capping device
KR101520077B1 (en) * 2014-04-07 2015-05-13 임준영 The vacuum container

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110110127A (en) * 2008-12-23 2011-10-06 캡테크 엘티디. Improved pump lid and containers employing such
KR101144500B1 (en) * 2012-03-16 2012-05-11 김상영 Vacuum apparatus
KR20140002773U (en) * 2012-10-29 2014-05-09 손재봉 Bottle capping device
KR101520077B1 (en) * 2014-04-07 2015-05-13 임준영 The vacuum container

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