KR101708117B1 - Possible backflow check valve - Google Patents

Possible backflow check valve Download PDF

Info

Publication number
KR101708117B1
KR101708117B1 KR1020150087112A KR20150087112A KR101708117B1 KR 101708117 B1 KR101708117 B1 KR 101708117B1 KR 1020150087112 A KR1020150087112 A KR 1020150087112A KR 20150087112 A KR20150087112 A KR 20150087112A KR 101708117 B1 KR101708117 B1 KR 101708117B1
Authority
KR
South Korea
Prior art keywords
opening
flow
flow rate
check valve
rate adjusting
Prior art date
Application number
KR1020150087112A
Other languages
Korean (ko)
Other versions
KR20160149658A (en
Inventor
최희식
Original Assignee
최희식
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 최희식 filed Critical 최희식
Priority to KR1020150087112A priority Critical patent/KR101708117B1/en
Publication of KR20160149658A publication Critical patent/KR20160149658A/en
Application granted granted Critical
Publication of KR101708117B1 publication Critical patent/KR101708117B1/en

Links

Images

Classifications

    • 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
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • 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
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • F16K31/504—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating means being rotable, rising, and having internal threads which co-operate with threads on the outside of the valve body

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a check valve capable of counterflow, and more particularly, to a check valve allowing flow of fluid in one direction in a flow path formed at a right angle, will be.
The check valve according to the present invention comprises a body portion having a through hole formed therein in the longitudinal direction thereof, a first portion protruding outwardly from the one end portion of the through hole, A flow rate adjusting bolt portion inserted into the other end portion of the through hole and having one end coupled to the other end portion of the opening and closing portion and the other end portion protruding outside the through hole; And a fixing nut portion for fixing the position of the flow rate adjusting bolt portion, wherein the flow rate adjusting bolt portion is engaged with the opening / closing portion to maintain the flow path in an opened state, And a flow control state in which the flow path can be opened and closed according to the flow direction of the fluid by the opening / closing part .
The counterflow check valve according to the present invention has the effect of selectively allowing the flow of fluid in both directions.
Further, the check valve which can be reversely flowed according to the present invention has an effect of facilitating the flow rate control.

Description

Possible backflow check valve < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a check valve capable of counterflow, and more particularly, to a check valve allowing flow of fluid in one direction in a flow path formed at a right angle, will be.

In general, the check valve is a valve that allows the flow of fluid only to one side and prevents the reverse flow of the fluid by blocking the flow in the opposite direction, and flows only in one direction. A dehumidifying device for removing moisture in high pressure or low pressure air supplied to a production line of a production line or an instrument and various industrial facilities for controlling the flow of various fluids (water, oil, chemical, gas, etc.) in one direction And the like.

However, there is a need for a check valve capable of gradually moving the fluid in both directions as needed.

In the related art, a check valve having a check release button is disclosed in Korean Patent No. 10-1474711. However, the check valve has a complicated structure and a high probability of occurrence of a residue, There is a problem that it is difficult to fine-tune.

Korean Patent No. 10-1474711 (December 22, 2014)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a check valve capable of selectively permitting the flow of fluid in both directions.

Another object of the present invention is to make it possible to easily adjust the flow rate by using a check valve.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems to be solved by the present invention, which are not mentioned here, As will be appreciated by those skilled in the art.

The check valve according to the present invention comprises a body portion having a through hole formed therein in the longitudinal direction thereof, a first portion protruding outwardly from the one end portion of the through hole, A flow rate adjusting bolt portion inserted into the other end portion of the through hole and having one end coupled to the other end portion of the opening and closing portion and the other end portion protruding outside the through hole; And a fixing nut portion for fixing the position of the flow rate adjusting bolt portion, wherein the flow rate adjusting bolt portion is engaged with the opening / closing portion to maintain the flow path in an opened state, And a flow control state in which the flow path can be opened and closed according to the flow direction of the fluid by the opening / closing part .

The counterflow check valve according to the present invention has the effect of selectively allowing the flow of fluid in both directions.

Further, the check valve which can be reversely flowed according to the present invention has an effect of facilitating the flow rate control.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a check valve capable of flowing backward in the form of a flow path opened in a forward direction according to the present invention; FIG.
FIG. 2 is a plan view of a check valve capable of reversing flow in the case where fluid flows in a reverse direction according to the present invention. FIG.
FIG. 3 is a plan view of a check valve capable of reversing flow, in which a flow control bolt portion is coupled to an opening and closing portion to maintain the channel open state according to the present invention.
FIG. 4 is a plan view of a check valve capable of flowing backward, showing a state in which a flow control bolt portion is connected to an opening and closing portion to form a flow path open state according to the present invention, and then the flow path is opened.
FIG. 5 is a plan view of a check valve capable of reversing flow, showing a process of releasing the opening and closing part and the flow rate adjusting bolt part in order to switch from the channel opening state to the flow adjusting state according to the present invention.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings.

The check valve according to the present invention not only permits the flow of fluid in one direction but also permits the flow of the fluid in a reverse direction as necessary. Referring to FIG. 1, the check valve has a through hole formed therein in the longitudinal direction A body portion; an opening / closing portion inserted into one end portion of the through hole and configured so that one end protruding outwardly can open / close one side of the flow path; And the other end of the flow control bolt portion is connected to the other end of the flow control bolt portion to fix the position of the flow control bolt portion, Wherein the control bolt portion is engaged with the opening / closing portion to maintain the flow path in an opened state, and the flow rate adjusting bolt portion is separated from the opening / That can be converted by any one of the flow control state capable of opening and closing the flow path is formed by the features according to the direction of flow of the fluid by opening and closing group.

First, a through hole is formed in the body part 100 in the longitudinal direction.

Specifically, the body part 100 is a part to be a body of the check valve for prevention of backflow according to the present invention. The body part 100 is provided at an orthogonal part of the flow path formed in a shape and has one end formed inside the flow path, And the end portion is protruded to the outside of the flow path.

At this time, the body 100 has a through hole formed therein in the longitudinal direction. A part of the opening and closing part 200 described below is inserted into the through-hole, and the opening and closing part 200 described below moves along the through-hole, thereby opening and closing the passage.

In addition, the body 100 may further include an O-ring groove 110 on the outer circumferential surface of the intermediate portion of the body 100 to allow an O-ring to be attached thereto. This is to prevent the fluid from leaking into a clearance between the body part 100 and the flow path because the other end of the body part 100 is exposed to the outside of the flow path.

Next, the opening / closing part 200 is inserted into one end of the through hole, and one end protruding outward is configured to open / close one side of the flow path.

Specifically, the opening / closing part 200 is formed in a disc shape in which one end portion protrudes out of the through hole formed in the body part 100 to block a part of the flow path, and one end of the opening / It is preferable to be configured in the same shape as the cross-section of the flow path.

It is preferable that the other end of the opening / closing part is formed in a structure capable of being engaged with and detachable from one end of the following flow rate adjusting bolt part. Specifically, the other end of the opening / closing portion is formed with a screw receiving portion provided with a female-threaded groove on the vertical central axis of the opening / closing portion.

This is for facilitating the connection with the one end of the flow control bolt portion described below, and it is advantageous in that it can be easily engaged and disengaged by forming a screw-shaped coupling portion, and a stable coupling force can be formed.

When the fluid flows from a to b in the flow rate control state in which the opening / closing portion is not engaged with the flow rate adjusting bolt portion described below, as shown in Fig. 1, by the flow pressure of the fluid, When the fluid flows from the direction b to the direction a (opposite direction), the flow pressure of the fluid disappears, as shown in FIG. 2, and the opening / closing part 200, The opening and closing part 200 is moved in the one end direction from the other end of the through hole by the spring 500 provided between the one end of the opening part 200 and the hook part 120 of the body part 100, The flow path formed at one end in the direction a can be blocked.

More specifically, when the fluid moving through the flow path moves from a to b direction, the opening / closing part 200 is moved in the direction of the other end of the body part 100 along the through hole by the flow pressure, One end of the opening and closing part 200 formed in the form of a disk is inserted into the one end of the body part 100 by the spring 500 when the fluid moves from direction b to direction a, So that the flow path formed in the direction a of the flow path is naturally blocked, so that it is possible to prevent the fluid from flowing back in the direction a from b to the direction a.

Next, the flow control bolt portion 300 is inserted into the other end portion of the through-hole so that one end of the flow control bolt portion 300 can be coupled to the other end portion of the opening / closing portion 200 and the other end portion is protruded outside the through- .

Specifically, the flow control bolt portion 300 is formed with a first screw portion 310 in the form of a male screw, which is inserted into the other end portion of the through hole and one end of which can be received in the screw receiving portion 210, And a second threaded portion 320 is formed on the outer circumferential surface and protruded to the other end of the through hole.

More specifically, the flow control bolt (300) is an apparatus for allowing the fluid to flow backward by fixing the opening / closing part (200) in an opened state regardless of the flow of the fluid, The first screw portion 310 provided at one end of the opening 300 and the screw receiving portion 210 provided at the opening and closing portion 200 are screwed together to form a passage opening state, The opening / closing part 200 can be fixed.

The flow path opening state means a state in which the flow path is always opened by coupling the opening / closing part and the flow rate adjusting bolt part.

At this time, a screw adjusting groove 330 is provided at the other end of the flow adjusting bolt 300 so that the flow adjusting bolt 300 can be easily rotated to be screwed into the screw receiving portion 210 in the form of a male screw. . Preferably, the screw adjusting groove 330 forms a groove into which the head of the driver or the hexagonal wrench can be received.

The second screw portion 320 provided at the other end of the flow rate adjusting bolt portion 300 has a thread formed on the outer circumferential surface thereof and is screwed to the following fixing nut portion 400 so that the opening / It is possible to fix the flow path in an open state without moving.

The first screw portion 310 formed at one end of the flow rate adjusting bolt portion is formed with a protrusion that can be received in the other end portion of the opening and closing portion 200. The protrusion portion has a length of 1/4 It is preferable that a thread is formed on the outer circumferential surface to a point of 1/3 point.

This is because when the opening / closing part 200 is not coupled to the flow control bolt part 300, the opening / closing part 200 is opened so that the flow path can be closed by the flow of fluid naturally, The thread formed on the outer circumferential surface of the first screw portion 310 of the flow rate adjusting bolt portion 300 is set to 1/3 of the height at which the protruded portion is formed in order to secure a greater clearance that can be moved in the through- The opening and closing part 200 may be continuously in contact with the first screw part 310 of the flow rate adjusting bolt part 300 or may be difficult to form a sufficient flow path because the opening and closing part can move, And a thread formed on an outer circumferential surface of the first screw portion 310 of the flow rate adjusting bolt portion 300 is formed to be lower than a quarter of a height of the protrusion portion, It is preferable to form the screw thread of the first threaded portion 310, under the conditions as described above, since four bonds yi yi down, screwed upon the flow control bolt portion position adjustment for the adjustment of the flow path section can be detachable.

Next, the fixing nut part 400 is coupled to the other end of the flow control bolt part 300 to fix the position of the flow control bolt part 300.

The fixing nut part 400 is formed in the shape of a nut coupled to the second screw part 320 and capable of adjusting the insertion depth of the flow control bolt part 300. The fixing nut part 400 has a shape And a nut that can be engaged with the second screw portion 320. The flow control bolt portion 300 serves to fix the flow control bolt portion 300 so that the flow control bolt portion 300 is not further inserted into the through hole or out of the through hole.

When the fixing nut portion 400 is tightened clockwise, the flow adjusting bolt portion 300 is tightly coupled with the body portion in a natural screw tightening manner, and the position is fixed. In order to release the coupling between the flow rate adjusting bolt part 300 and the opening and closing part 200, the flow rate adjusting bolt part 300 is rotated by the counterclockwise pulling operation, As shown in FIG.

Hereinafter, the operation of the invention constructed as described above will be described.

1 and 2, when the check valve is used as a check valve to prevent the backflow of the fluid, the flow rate control bolt part 300 and the opening / closing part 200 are separated from each other, The flow control bolt portion 300 is allowed to protrude to the other end of the through hole as much as possible. Therefore, when the fluid flows from a to b, the opening / closing part 200 is naturally opened, and when the fluid flows from b to b, When the fluid flows in the direction a (reverse direction), the opening / closing part 200 naturally closes the flow path in the direction a, thereby preventing the fluid from flowing backward.

The flow control bolt portion 300 may be rotated clockwise to secure the screw receiving portion 210 of the opening and closing portion 200 after the fixing nut portion 400 is fixed, The flow control bolt portion 300 is rotated in a counterclockwise direction so that the flow control bolt portion 300 protrudes from the other end portion of the through hole, So as to be fixed in the channel open state in which the channel is opened. Further, due to the operation of tightening the fixing nut part 400 in the clockwise direction, the connection between the flow rate adjusting bolt part 300 and the body part 100 is secured. Therefore, the flow path can be opened regardless of the flow of the fluid. Further, the degree of opening of the flow path can be adjusted by adjusting the position of the flow rate adjusting bolt part 300, so that the flow rate can be adjusted.

As described above, it is to be understood that the technical structure of the present invention can be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, All changes or modifications that come within the scope of the equivalent concept are to be construed as being included within the scope of the present invention.

100: Body part 110: O-ring groove
120: latching part 200: opening /
210: screw receiving part 300: flow adjusting bolt part
310: first screw portion 320: second screw portion
330: screw adjusting groove 400: fixing nut part
500: spring

Claims (5)

A body portion having a through hole formed therein in the longitudinal direction;
An opening / closing part inserted into one end of the through hole and configured so that one end protruding outwardly can open / close one side of the flow path;
A flow control bolt inserted into the other end of the through hole and having one end coupled to the other end of the opening and closing part and the other end protruding outside the through hole;
And a fixing nut portion coupled to the other end of the flow rate adjusting bolt portion to fix the position of the flow rate adjusting bolt portion,
One end of the flow rate adjusting bolt is engageable with the other end of the opening and closing part in a screwed manner,
A flow path opening state in which the flow rate adjusting bolt portion and the opening and closing portion are coupled to each other and the flow rate adjusting bolt portion is moved in the direction of the other end and then fixed through the fixing nut portion,
Wherein the flow control bolt portion and the opening / closing portion are released, the opening / closing portion can be switched to any one of a flow control state in which the flow path can be opened and closed in accordance with the flow of the fluid inside the flow path. Check valve. The method according to claim 1,
The opening /
And a screw receiving portion provided at the other end in the form of a female screw. The method according to claim 1,
Wherein the flow control bolt portion includes:
A first screw portion protruding in the form of a male screw at one end; And
And a second screw portion provided at the other end with a thread formed on an outer circumferential surface thereof. The method of claim 3,
Wherein the first threaded portion comprises:
A protrusion is formed in a shape that can be received at the other end of the opening /
Wherein the projecting portion is formed with a thread on the outer peripheral surface to a point of 1/4 to 1/3 of the height of the formed check valve. The method according to claim 1,
At the other end of the flow rate adjusting bolt portion,
And a screw adjusting groove into which a head of a hexagonal wrench or a phillips screwdriver can be accommodated.
KR1020150087112A 2015-06-19 2015-06-19 Possible backflow check valve KR101708117B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150087112A KR101708117B1 (en) 2015-06-19 2015-06-19 Possible backflow check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150087112A KR101708117B1 (en) 2015-06-19 2015-06-19 Possible backflow check valve

Publications (2)

Publication Number Publication Date
KR20160149658A KR20160149658A (en) 2016-12-28
KR101708117B1 true KR101708117B1 (en) 2017-02-20

Family

ID=57724445

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150087112A KR101708117B1 (en) 2015-06-19 2015-06-19 Possible backflow check valve

Country Status (1)

Country Link
KR (1) KR101708117B1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090039304A1 (en) * 2005-12-02 2009-02-12 Ckd Corporation Flow Control Valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146663U (en) * 1983-03-19 1984-10-01 三菱重工業株式会社 Bypass passage check valve
JPH0634158U (en) * 1992-10-01 1994-05-06 ダイハツ工業株式会社 Exhaust gas recirculation system for engine
KR101474711B1 (en) 2014-02-17 2014-12-22 손형모 Check valve have check cancellation button

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090039304A1 (en) * 2005-12-02 2009-02-12 Ckd Corporation Flow Control Valve

Also Published As

Publication number Publication date
KR20160149658A (en) 2016-12-28

Similar Documents

Publication Publication Date Title
ATE393366T1 (en) COMBINATION VALVE
KR101085452B1 (en) Opening and shutting device for supplying water
KR101708117B1 (en) Possible backflow check valve
KR101534212B1 (en) Screw connector for valve
US20160091111A1 (en) Lock Device and Valve Device
US7185877B2 (en) Quick-connect coupling for a gas appliance
US8037558B1 (en) Wash basin drain structure
KR101127361B1 (en) A valve for temperature and flow controlling
US20180372242A1 (en) Fluid Control
US9334973B2 (en) Trim of check valve
CA2526885A1 (en) Quick coupling unit with integrated check valve
US20170016219A1 (en) Sink Drain Stopper Assembly
US6446935B1 (en) Valve device with elevated mounting pads
JP2005140182A (en) Water shut off valve with backflow preventive function
US3406942A (en) Fluid flow controlling connector
KR102029998B1 (en) Pipe connecting apparatus with cam
US20160223114A1 (en) Easy connect liquid flow control system
US7168450B2 (en) Valve adapter
US5125625A (en) Quick vent closure assembly for pressurized water reactor
US963152A (en) Valve.
KR200461766Y1 (en) One Touch Type Tap Water Valve
JP6030967B2 (en) Stop cock and faucet device provided with the same
KR101688692B1 (en) Separable type valve apparatus and air conditioner
KR20160002153U (en) Stopper for pipe
US20090045369A1 (en) Plumbing Fitting

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
FPAY Annual fee payment

Payment date: 20191130

Year of fee payment: 4