KR101641633B1

KR101641633B1 - Vacuum Pump

Info

Publication number: KR101641633B1
Application number: KR1020140168544A
Authority: KR
Inventors: 김현진
Original assignee: 김현진
Priority date: 2014-11-28
Filing date: 2014-11-28
Publication date: 2016-07-22
Also published as: WO2016085309A1; KR20160064666A

Abstract

The present invention relates to a vacuum pump installed in a vacuum container, including a cylinder body having a space and a moving hole provided therein; A cover coupled to the cylinder body to provide a receiving space therein; A piston portion installed in the accommodation space so that one region is exposed to the outside through the moving hole; And an elastic member provided on one side to support the lower portion of the cover and the other side to support the piston portion, wherein the piston portion divides the accommodation space into a first space in the upper portion and a second space in the lower portion, A partition plate provided to support an inner circumferential surface of the cylinder body when the cylinder body is moved, a tubular rod provided between the partition plate and the bottom of the partition plate, the tubular rod being provided with a through hole, And a pedestal detachably installed at a lower end of the rod, the pedestal having a communication hole communicating with the inside of the rod. Accordingly, the structure is simple, the production cost is low, the production is easy, and the maintenance is easy at the time of breakage.

Description

Vacuum Pump

The present invention relates to a vacuum pump. And more particularly, to a vacuum pump for discharging air inside a vacuum container that receives and closes a predetermined food to make the interior of the container into a vacuum state.

In general, a vacuum container accommodates predetermined foods and closes them, so that they can be safely stored in a vacuum for a longer period of time.

The air inside the container is discharged to the outside by using a vacuum device integrally connected to the body of the vacuum container or a vacuum pump separately provided from the container. Accordingly, the interior of the container is maintained in a vacuum state or a low pressure state, so that the food or the like contained in the container is prevented from being easily decayed by the oxidizing action of the air.

Particularly, there is a vacuum evacuation apparatus of Korean Registered Patent No. 10-1144500 (2012.05.02) in relation to a vacuum pump so as to discharge and seal the inside air.

However, the vacuum evacuation apparatus has a complicated structure, which makes it difficult to manufacture the vacuum evacuation apparatus, thereby increasing the production cost.

In addition, the vacuuming apparatus does not provide an air intake port separately, but uses a gap of mechanical coupling in a complicated structure to move the air, so that the air flow is not smooth, The powder, dust, or liquid in the contents may be sucked up to block the air hole and cause a failure.

Especially, as the vacuum suction force is increased while pumping rapidly, the air resistance is generated and the force is hard to press, and the vacuum pressure is not generated as much as the force.

In addition, the conventional technique has a problem in that holes are formed in the injection structure during the manufacturing process, so that bonding between the parts is difficult, so that it is inevitable to use an adhesive such as a bond. This not only increases the complexity of the process, but also causes problems in use in environments where environmental hygiene is important, such as food containers, and causes malfunctions.

On the other hand, in the case of a flat-type cover, since it is difficult to completely cover the force of the palm, the cover is wrapped around the entire hand so as to protect the air inlet, It interferes with operation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a vacuum pump having a simple structure while improving the air suction force inside the vessel.

According to a preferred embodiment of the present invention, there is provided a vacuum pump installed in a vacuum container, comprising: a cylinder body having a space and a moving hole provided therein; A cover coupled to the cylinder body to provide a receiving space therein; A piston portion installed in the accommodation space so that one region is exposed to the outside through the moving hole; And an elastic member provided on one side to support the lower portion of the cover and the other side to support the piston portion, wherein the piston portion divides the accommodation space into a first space in the upper portion and a second space in the lower portion, A partition plate provided to support an inner circumferential surface of the cylinder body when the cylinder body is moved, a tubular rod provided between the partition plate and the bottom of the partition plate, the tubular rod being provided with a through hole, And a pedestal detachably installed at a lower end of the rod, the pedestal having a communication hole communicating with the inside of the rod.

The cover may include a hemispherical pressure plate and a support portion protruding downward from the lower surface of the pressure plate.

The piston may be provided with an O-ring mounting groove formed at an upper edge of the partition plate, a protrusion provided with a through hole at one side, and an O-ring installed in the O-ring mounting groove.

The apparatus may further include a load chamber installed along the circumference of the moving hole formed in the lower portion of the cylinder body, and a second O-ring disposed between the lower portion of the cylinder body and the load chamber.

And the size of the second space in the accommodating space increases as the cover and the cylinder body are guided and moved downward by the rod when the cover is pressed.

In addition, when the cover is pressed, the air inside the vacuum container moves in the order of the communication hole, the rod, and the through hole, and moves to the second space.

In addition, when the cover is released from pressure, the air in the second space moves in the order of the clearance between the inner circumferential surface of the cylinder body and the partition plate, the O-ring mounting groove, .

The vacuum pump according to a preferred embodiment of the present invention having the above-described structure is simple in structure, low in production cost, easy to manufacture, and easy to maintain and repair at the time of breakage.

In addition, it is possible to make the inside of the container into a vacuum state with a small amount of force within a short time, and after the inside of the container is made into a vacuum state, the vacuum pump can be separated and used in other containers.

In addition, the hemispherical cover utilizes a kind of arcuate structure principle, so that the transmission direction of the force is straightened without pressing the center, so that the peg and the check valve keep pivoting force during pumping.

In the conventional technology, since the coupling force between the pedestal and the check valve is shaken and the vacuum pump does not operate, the user is cautioned and caught in the center, thereby blocking the air hole in the upper part of the cover. It falls into a contradiction that is not smooth.

In addition, the hemispherical cover is not contracted to a maximum value so that the spring used as the inner elastic member is almost attached to the hemispherical cover as in the conventional technique, but has a free space when contracted by the vertical height of the hemispherical cover. This dramatically increases the service life of elastic members such as springs, thereby increasing the service life of the vacuum pump and lowering the failure rate.

In addition, the hemispherical cover is naturally wrapped around the palm of the hand when used, and this creates an effect that the portion other than the palm of the hand falls off the cover, thereby preventing the pores from being blocked.

1 and 2 are an exploded perspective view and an exploded perspective view showing a vacuum pump according to a preferred embodiment of the present invention,
3 is an exploded sectional view of a vacuum pump according to a preferred embodiment of the present invention,
4 is a view showing a process of closing a vacuum pump according to a preferred embodiment of the present invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant description thereof will be omitted.

The vacuum pump 1 according to the preferred embodiment of the present invention allows the inside air of the vacuum container 10, which receives and closes a predetermined food, to be discharged and stored in a vacuum state. That is, the vacuum pump 1 is attached to a vacuum container 10 provided with a check valve 11 to suck the air inside the vacuum container 10 and discharge it to the outside, thereby increasing the degree of vacuum inside the vacuum container 10 .

1 to 4, a vacuum pump 1 according to a preferred embodiment of the present invention includes a cover 100, a cylinder body 200, a piston unit 400, and an elastic member 500 . Here, as the elastic member 500, a spring can be used.

The vacuum pump 1 discharges the air inside the vacuum container 10 while the cover 100 and the cylinder body 200 move along the piston 400 as shown in FIG.

That is, the cover 100 and the cylinder main body 200 are moved downward along the piston 400 by the pressure so as to discharge the air in the vacuum container 10 and the elastic restoring force of the elastic member 500, And the vacuum container 10 is evacuated.

The cover 100 is coupled to the upper side of the cylinder body 200 to seal the upper end of the cylinder body 200. Accordingly, a receiving space 300 is formed between the cover 100 and the cylinder body 200.

Here, the cover 100 can be engaged with the cylinder body 200 in a fitting manner. For example, the cover 100 may be coupled to the cylinder body 200 in a fitting manner by forming grooves on the inner surface of the cover 100 and forming protrusions on the outer circumferential surface of the cylinder body.

In addition, a screw thread may be formed on the inner surface of the cover 100 and the outer peripheral surface of the cylinder body 200 to perform screwing.

A sealing material such as an O-ring may be used between the inner surface of the cover 100 and the outer peripheral surface of the cylinder body 200 to prevent air from leaking to reinforce the sealing force.

The cover 100 may include a pressure plate 110, a support 120 installed at a lower portion of the pressure plate 100, and a vent hole 130.

The pressure plate 110 may be hemispherical. Accordingly, by increasing the contact area when the pressing plate 110 is pressed, force transmission is facilitated. That is, even if pressure is applied in any direction of the pressure plate 100, force transmission is facilitated downward.

Further, since the pressure plate 110 is formed in a hemispherical shape, the area is increased compared with the flat plate type, and various designs can be formed, thereby improving the degree of design freedom.

The supporting part 120 may be provided so as to protrude downward from the lower surface of the pressure plate 110. For example, the support 120 may have various shapes such as a cylindrical shape, a cylindrical shape, and the like.

Since the support portion 120 is installed inside the spring, it is possible to prevent the position of the spring from being separated from the central axis even if the cover 100 and the cylinder body 200 move between the standby position and the vacuum position do.

That is, the support 120 supports one side of the spring.

A plurality of ventilation holes 130 may be formed in the pressure plate 100 so as to communicate with the inside of the cover body 100 when the cover 100 and the cylinder body 200 are coupled.

The vent hole 130 is preferably formed along the edge of the press plate 110 so as not to be blocked when the press plate 110 is pressed.

The cylinder body 200 may be formed in a cylindrical shape so as to have a space therein. 1 and 2, the cylinder body 200 is formed in a cylindrical shape, but it is not limited thereto. The cylinder body 200 may be formed in a shape of a rectangular tube, a hexagonal tube, or the like Of course.

That is, the cylinder body 200 may include a side wall 210, a lower wall 220 provided below the side wall 210, and a moving hole 230 formed in the lower wall 220.

Here, the moving hole 230 allows one region of the piston 400 to be exposed to the outside.

The piston unit 400 may include a partition plate 410, a protrusion 420 installed on an upper surface 411 of the partition plate 410, an O-ring 430, a rod 440, and a pedestal 450.

The partition plate 410 may be formed in a plate shape so that it can be formed with the inner circumferential surface of the cylinder body 200. Accordingly, the partition plate 410 serves as a guide when the cylinder body 200 is moved.

Here, when the partitioning plate 410 is formed with the inner peripheral surface of the cylinder main body 200, the partitioning plate 410 is fitted with a predetermined clearance. Accordingly, the tolerance serves as a passage through which the air in the second space 320 moves to the first space 310. [

The partition plate 410 divides the accommodation space 300 into the first space 310 and the second space 320, as shown in FIG.

The protrusion 420 may protrude from the vertical protrusion 421 and the vertical protrusion 421 protruding vertically from the upper surface 411 toward the inner surface of the cylinder body 200, And a through hole 423 formed in the horizontal protrusion 422 and the horizontal protrusion 422 formed in the horizontal protrusion 422. 3, the O-ring mounting groove 424 can be formed by the upper surface 411, the vertical protrusions 421, and the horizontal protrusions 422. As shown in FIG.

The first O-ring 430 can be installed in the O-ring mounting groove 424 so as to be movable in accordance with the movement of the partition plate 410 while being in contact with the inner circumferential surface of the cylinder body 200.

Here, it is preferable that the up-and-down height of the O-ring mounting groove 424 is formed to be larger than the diameter of the first O-ring 430 so that the first O-ring 430 can move up and down. The O-ring mounting groove 424 may be connected to the first space 310 through the through hole 423.

Therefore, the first O-ring 430 functions to block the first space 310 and the second space 320 only when the cylinder body 200 is moved in one direction.

The rod 440 is installed at the lower part of the partition plate 410. The rod 440 may be formed in a cylindrical shape and one region of the rod 440 may be repeatedly moved into or out of the cylinder body 200 as the cover 100 is pressed or released .

On the other hand, a through hole 441 may be formed on the upper side of the rod 440.

The through hole 441 serves as a passageway for allowing the air introduced into the rod 440 to flow into the second space 320 when the vacuum container 10 is evacuated.

The pedestal 450 may be removably installed at the lower end of the rod 440.

Here, the pedestal 450 can be engaged with the rod 440 in a fitting manner. For example, a coupling groove 451 may be formed on the upper side of the pedestal 450 and the lower end of the rod 440 may be fitted to the coupling groove 451 to be coupled.

Accordingly, the pedestal 450 having various shapes can be applied according to the structure around the check valve 11. [

The pedestal 450 may be formed in a shape radially extending from the lower end peripheral surface of the rod 440.

The pedestal 450 may include a vacuum projection 452 formed to extend downward along the menopause from the bottom surface and a communication hole 453 formed to communicate the inside and the outside of the rod 440.

The pedestal 450 and the vacuum protrusion 452 are provided to close the peripheral space of the check valve 11 mounted on the vacuum container 10 and can be variously changed according to the structure around the check valve 11 .

The elastic member 500 is installed in the first space 310. More specifically, one side of the elastic member 500 is installed to be supported by the lower part of the cover 100, and the other side is installed to be supported by the upper surface of the partition plate 410.

Accordingly, as the cover 100 is pressed, the elastic member 500 is contracted, and the elastic member 500 is relaxed by the elastic restoring force as the pressurization is released.

Since the pressure plate 110 is formed in a hemispherical shape, a space is formed in which the elastic member 500 can exist when the elastic member 500 is compressed. Since the elastic member 500 is compressed so as not to reach the threshold value by the hemispherical pressure plate 110, the life of the elastic member 500 is improved. That is, since the elastic member 500 is incompletely compressed, the life of the elastic member 500 is improved.

The rod body 600 may further include a rod chamber 600 and a second O-ring 700 disposed under the lower wall 230 of the cylinder body 200.

The load chamber 600 is installed below the lower wall 230 with the second O-ring 700 interposed therebetween to prevent the second O-ring 700 from being deviated to the outside.

The second O-ring 700 is installed between the lower wall 230 and the rod chamber 600 and is installed to be coupled to the outer circumferential surface of the rod 440. Therefore, 240).

Hereinafter, the sealing process of the vacuum pump 1 will be described with reference to FIG.

4 (a), the cover 100 of the vacuum pump 1 and the cylinder body 200 are positioned at the standby position. Then, as the pressure plate 110 is pressed, it is moved to the vacuum position as shown in FIG. 4 (b).

That is, as the pressure plate 110 is pressed, the cover 100 and the cylinder body 200 descend along the piston 400, and the size of the second space 320 of the accommodation space 300 increases do.

The inner air of the vacuum container 10 flows into the inside of the rod 440 through the communication hole 453 and then moves to the second space 320 through the through hole 441. [

When the pressure is released, the size of the first space 310 of the accommodation space 300 increases due to the elastic restoring force of the elastic member 500.

The air present in the second space 320 passes between the inner circumferential surface of the cylinder body 200 and the partition plate 410 and then moves to the first space 310 through the through hole 423.

The vacuum pump 1 according to the preferred embodiment of the present invention discharges the air inside the vacuum container 10 by using the cover 100 and the cylinder body 200 moving along the piston 400, Thereby causing the vacuum container 10 to be in a vacuum state.

As used in this embodiment, the term " portion " refers to a hardware component such as software or an FPGA (field-programmable gate array) or ASIC, and 'part' performs certain roles. However, 'part' is not meant to be limited to software or hardware. &Quot; to " may be configured to reside on an addressable storage medium and may be configured to play one or more processors. Thus, by way of example, 'parts' may refer to components such as software components, object-oriented software components, class components and task components, and processes, functions, , Subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and components may be further combined with a smaller number of components and components or further components and components. In addition, the components and components may be implemented to play back one or more CPUs in a device or a secure multimedia card.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

1: Vacuum pump 10: Vacuum container
100: cover 200: cylinder body
300: accommodation space 400: piston part
500: elastic member 600: rod seal
700: Second O-ring

Claims

In a vacuum pump provided in a vacuum container,
A cylinder body having a space provided therein and a moving hole;
A cover coupled to the cylinder body to provide a receiving space therein;
A piston portion installed in the accommodation space so that one region is exposed to the outside through the moving hole; And
And an elastic member provided on one side for supporting the lower portion of the cover and the other side for supporting the piston portion,
The piston
A partition plate that divides the accommodation space into a first space at an upper portion and a second space at a lower portion and supports the inner circumferential surface of the cylinder body when the cylinder body is moved;
A tubular rod provided at a lower portion of the partition plate and partially exposed through the moving hole, the tubular rod having a through hole; And
And a pedestal detachably installed at a lower end of the rod and having a communication hole communicated with the inside of the rod,
As the cylinder body is guided and lowered by the outer peripheral surface of the piston portion by the pressing of the cover,
Wherein air in the vacuum container is sucked through the communication hole and then moves along the inside of the rod to move to the second space through the through hole.

The method according to claim 1,
The cover
A semi-spherical press plate having a vent hole formed therein and a support portion protruding downward from the lower surface of the press plate,
Wherein when the pressure plate is pressed, the elastic member is incompletely compressed.

The method according to claim 1,
Wherein,
The vacuum pump according to claim 1, further comprising an O-ring mounted on an upper edge of the partition plate so as to form an O-ring mounting groove, the O-ring mounting groove having a through hole formed at one side thereof.

The method of claim 3,
And a second O-ring disposed between the lower portion of the cylinder body and the load chamber, the second O-ring being disposed along the circumference of the moving hole formed in the lower portion of the cylinder body.

The method of claim 3,
Wherein when the cover is pressed, the size of the second space in the accommodating space increases as the cover and the cylinder body are guided and moved downward by the rod.

delete

6. The method of claim 5,
The air in the second space moves in the order of the gap between the inner circumferential surface of the cylinder body and the partition plate, the O-ring mounting groove, the through hole, and moves to the first space when the cover is released from pressure. Vacuum pump.