KR101142197B1 - Bellows valve of button type - Google Patents

Abstract

A button-type bellows valve is disclosed in which the drive mechanism of the handle is improved such that the flow of fluid is blocked in a check valve manner and the flow of fluid proceeds through manipulation of the handle. The button-type bellows valve has a body having a flow path formed therein, a lower surface formed with an inflow passage through which the fluid flowing in the flow path and a discharge member for discharging the fluid flowing into the inflow passage, A stem that is connected to the stem, a stem bed that closes or opens the flow path by lifting and lowering the stem, a bellows formed on the outer periphery of the stem, and a button and a button which are combined with and lifted up and down integrally with the stem. It includes a locking member for fixing the lowered state of the button when descending. Thus, opening and closing of the valve can be performed only by simple operation of the handle, and only an authorized operator can operate the valve.

Bellows, Valve

Description

Bellows valve of button type

This technology relates to a bellows valve, and more particularly to a button-type bellows valve in which the drive mechanism of the handle is improved so that the flow of the fluid is blocked in a check valve manner and the flow of the fluid proceeds through manipulation of the handle.

Generally, a bellows valve is an opening and closing device for controlling the flow of fluid flowing in a flow path, and means a valve having a bellows therein to improve airtightness. Such a bellows valve is mainly used for pipes through which toxic fluids, steels with a constant viscosity, high temperature steam, and the like are transported in steel mills and chemical plants.

1 is a perspective view of a conventional bellows valve, and FIG. 2 is a sectional view of a conventional bellows valve.

As shown in FIGS. 1 and 2, the conventional bellows valve 500 opens and closes as the stem 520, which is lowered and lowered in the body 509, opens and closes a flow path 513 formed in the body 509. It is made of a structure. Flange portions 501 are formed at both sides of the body 509 to be coupled to other flanges, and the flow path 513 connects the inlet 511 and the outlet 512 of the body 509.

The shaft member 550 is screwed to the upper portion of the stem 520, the operation handle 560 for the user's operation is fixed to the upper portion of the shaft member 550. Accordingly, the shaft member 550 is rotated by the rotation of the operation handle 560, and the stem 520 screwed with the shaft member 550 is moved in the vertical direction. The stem bed 530 is fixed to the lower portion of the stem 520 to open and close the flow path 513 as the stem 520 moves up and down. An outer periphery of the stem 520 is formed with a bellows 540 which is airtight, and a bonnet 580 is provided outside the bellows 540.

The conventional bellows valve 500 having such a configuration has the stem 520 descending when the operating handle 560 is rotated clockwise to close the valve, and the stem 520 when the operating handle 560 is rotated counterclockwise. ) Rises and the valve opens. Therefore, in order to open and close the valve, the user must perform the operation of rotating the operation handle 560 clockwise or counterclockwise.

However, in order to open and close the conventional bellows valve, the user must be inconvenient to perform the operation to rotate the operation handle.

In addition, the conventional bellows valve could not confirm whether the valve is opened or closed through the appearance state of the operation handle. That is, since the operation handle was formed in a circular shape with a radial handle and the valve was opened and closed through rotation, the user could not identify whether the valve is currently fully open, fully closed, or only partially open.

If the user wants to check the open / closed state of the valve, an additional operation must be performed to check whether rotation is possible by rotating the operation handle clockwise or counterclockwise.

In addition, the conventional bellows valve has a problem of low reliability of opening and closing the valve because there is no locking device for keeping the flow path open or closed.

Meanwhile, the conventional bellows valve has a structure in which the stem bed and the body face each other and are formed to be in close contact with each other, so that the stem bed is closed every time the valve is closed by rotating the handle clockwise. There was a problem that it is not properly sealed by seating at different positions of the body every time.

In order to solve such a conventional problem, it provides a bellows valve having a lever-type handle that can be opened and closed through a simple operation of the operation handle and can easily identify whether the valve is opened or closed.

In addition, the present invention provides a bellows valve having improved reliability by having locking means for holding the valve in an open or closed state.

In addition, improving the shape of the opposite side of the stem bed and the body provides a bellows valve that improves airtightness as the stem bed is seated exactly in the same position on the opposite side of the body at every closure.

The button-type bellows valve has a body having a flow path formed therein, a lower surface formed with an inflow passage through which the fluid flowing in the flow path and a discharge member for discharging the fluid flowing into the inflow passage, A stem that is connected to the stem, a stem bed that closes or opens the flow path by lifting and lowering the stem, a bellows formed on the outer periphery of the stem, and a button and a button which are combined with and lifted up and down integrally with the stem. It includes a locking member for fixing the falling state or the rising state of the button when the lower or rising.

In addition, the button is formed in a cylindrical shape, the notch portion is formed in one side concave, the locking member is rotatable around the button, the inside of the rotating portion is installed in the notch portion is fixed to the holder and the holder to hold the button of the button It is preferable to provide the support part which elastically presses in a lateral direction.

In this case, the notch portion may be composed of a first parallel portion formed in parallel to orthogonal to the longitudinal direction of the button, an inclined portion extending obliquely from the first parallel portion, and a second parallel portion extending from the inclined portion parallel to the first parallel portion. Can be.

In addition, the stem bed is formed to be inclined so as to decrease in diameter toward the top, it is preferable that the lower surface of the pipe member is also formed to be inclined corresponding to the inclined portion of the stem bed.

In addition, the inside of the body may be provided with an elastic member for pressing the stem in the upward direction to block the flow path.

In addition, a color display unit may be formed at the outer circumference of the button to easily identify whether the valve is opened or closed from the outside without additional manipulation.

Therefore, the handle is driven by a push operation in the form of a button, so that opening and closing of the valve can be performed only by simple operation of the handle. As a result, the user opens and closes the valve without applying great force.

In addition, the operability is excellent because it is possible to immediately identify whether the valve is opened or closed without additional operation.

In addition, it is provided with a locking means for holding the valve in the open and closed state, so that only authorized personnel can operate the valve and reduce the malfunction of the valve.

In addition, since the opening and closing airtightness of the flow path is improved, the safety and reliability of the valve can be enhanced.

Hereinafter, the technical configuration of the button-type bellows valve according to the accompanying drawings in detail.

3 is a perspective view of a bellows valve according to an embodiment, FIG. 4 is an exploded perspective view of the bellows valve according to an embodiment, and FIG. 5 is a cross-sectional view of the bellows valve according to an embodiment.

6 and 7 are cross-sectional views of the bellows valve showing the operation example of FIG. 5, and FIG. 8 is an enlarged cross-sectional view of "A" of FIG. 6.

3 to 8, the button-type bellows valve 1 includes a body 11, a tubular member 17, a stem 12, a stem bed 13, a bellows 14, And a button 15 and a locking member 16.

The body 11 has a flow path 111 therein. The flow path 111 is formed in an S-shape inside the body 11 and connects the inlet 112 and the outlet 113 of the valve. And, the center line of the inlet 112 and the outlet 113 is located on the same line. Thus, the bellows valve 1 takes the form of a globe valve. In this case, both sides of the body 11 may be formed with a flange portion 114 for coupling with the other flange.

The pipe member 17 is interposed on the flow path 111 of the body 11. An inflow passage 171 is formed on the lower surface of the pipe member 17. The fluid flowing through the flow path 111 of the body 11 through the inflow passage 171 flows into the pipe member 17. In addition, the discharge passage 172 is formed on the side of the tube member (17). The fluid in the pipe member 17 is discharged to the flow path 111 through the discharge passage 172.

The stem 12 is connected to the tubular member 17 so as to be lifted and lowered. The stem 12 may have a catching member 121 at the bottom thereof. The locking member 121 is formed in a “┸” shape, and is coupled to the lower portion of the stem 12 to be raised and lowered together with the stem 12. That is, the locking member 121 is inserted into the inflow passage 171 formed on the lower surface of the tube member 17, the stem 12 is inserted into the upper portion of the tube member 17 is fastened to the upper end of the locking member 121 do.

The stem bed 13 closes or opens the flow path 111 by raising and lowering the stem 12. That is, the stem bed 13 is fixed to the upper surface of the "-" portion of the locking member 121. Therefore, as the stem 12 moves up and down, the upper surface of the stem bed 13 is in close contact or spaced apart from the lower surface of the tube member 17. In this way, the opening and closing of the fluid flowing through the flow path 111 is performed. In this case, the stem bed 13 may be made of a polytetrafluoroethylene (PTFE) -based fluorine resin having a low coefficient of friction and excellent chemical resistance.

The bellows 14 is formed on the outer circumference of the stem 12 to perform a sealing function. That is, the bellows 14 prevents the fluid flowing through the flow path 111 from flowing upward through the micro gaps between the stem 12 and the body 11.

The button 15 is coupled to the top of the stem 12 and raised and lowered integrally with the stem 12. That is, when the user presses the button 15 downward, the button 15, the stem 12, the locking member 121, and the stem bed 13 are integrally moved downward. Therefore, the user can simply open the flow path 111 even by performing only the operation of pressing the button 15.

The locking member 16 serves to fix the lowered or raised state of the button 15 when the button 15 is lowered or raised. Thus, the user can easily keep the valve open or closed.

According to a preferred embodiment, the button 15 has a cylindrical shape and has a notch 151. The notch 151 is recessed in one side of the button 15. In addition, the locking member 16 includes a rotating part 161, a holder 162 and a support part 163.

The rotating part 161 is connected to the supporting member 118 fastened to the upper portion of the body 11 and rotated about the button 15. The cover 165 may be coupled to the upper portion of the rotating part 161.

The holder 162 is installed inside the rotating part 161, and a support part 163 is formed at one side of the holder 162. The holder 162 is fitted to the notch 151 to function to fix the button 15.

The support 163 elastically presses the holder 162 in the lateral direction of the button 15. The support 163 may be composed of a compression spring or the like.

The operation of the bellows valve having such a structure will be described with reference to FIGS. 3 to 8.

5 shows the valve closed. In this case, no external force is applied to the button 15, and the locking member 16 is in a state in which the holder 162 is rotated in a direction not facing the notch 151.

Therefore, as the fluid introduced into the inlet 112 presses the locking member 121 coupled to the lower portion of the stem 12, the stem bed 13 is in close contact with the bottom surface of the tubular member 17. As a result, the flow of the fluid introduced into the inlet 112 is blocked so that the fluid does not flow to the outlet 113 side. As such, the bellows valve 1 is automatically shut off in a check valve type manner.

6 shows a state in which a button is pressed. When the button 15 is pressed downward, the button 15, the stem 12, the locking member 121 and the stem bed 13 are all lowered together integrally. Accordingly, the stem bed 13 in close contact with the lower surface of the tube member 17 is spaced apart from the lower surface of the tube member 17.

Therefore, the fluid introduced into the inlet 112 flows through the inlet passage 171 and the outlet passage 172 of the pipe member 17 toward the outlet 113 side of the body 11. In this case, when the external force of pressing the button 15 downward is released, the fluid introduced into the inlet 112 pressurizes the locking member 121 so that the button 15 is moved upward again as shown in FIG. 5. Is moved.

In addition, Figure 7 shows a state in which the locking member is rotated in one direction. When the button 15 is pushed downward in the state in which the lock member 16 is rotated in one direction, or the lock member 16 is rotated in one direction while the button 15 is pushed in the downward direction, the lock mode is performed. In this case, the holder 162 is rotated in a direction facing the notch 151 of the button 15.

That is, when the button 15 is moved downward while the holder 162 faces the notch 151, the holder 162 is notched by the support 163 which elastically supports the holder 162. 151). Therefore, even if the external force of pressing the button 15 downward is released, the button 15 is fixed without moving upward.

In summary, the user can perform opening and closing of the valve by simply pressing the button 15, and can easily identify whether the valve is opened or closed from the outside. In addition, the user can easily keep the valve open.

9 is a side view of a button according to a modification of FIG. 5. As shown in FIG. 9, the notch may include a first parallel portion 152, an inclined portion 153, and a second parallel portion 154.

The first parallel portion 152 is formed in parallel in the direction orthogonal to the longitudinal direction of the button 15. That is, the first parallel portion 152 is formed in the left and right lateral direction as shown. In addition, the inclined portion 153 is formed to be inclined downward from the first parallel portion 152. The second parallel portion 154 extends from the inclined portion 153, and is formed in parallel with the first parallel portion 152.

Through the notch configured as described above, the bellows valve 1 may perform a locking function for maintaining a closed state as well as a locking function for maintaining an open state.

That is, when the button 15 is raised and the locking member 16 is rotated so that the holder 162 is fitted to the first parallel portion 152 of the notch 151, the button 15 is lowered. The button 15 is fixed without being moved downward even when an external force is pressed.

In addition, when the button 15 is lowered and the locking member 16 is rotated so that the holder 162 is fitted to the second parallel portion 154 of the notch 151, the button 15 is fluid. It is fixed without being moved upward by the pressing force of. In this state, when the locking member 16 is rotated in one direction, the holder 162 is guided toward the first parallel portion 152 through the inclined portion 153 of the notch portion 151 and the button 15 gradually rises. do.

In addition, as shown in Figure 8, the stem bed 13 is preferably formed to be inclined so that the diameter becomes smaller toward the top. In addition, the lower surface of the pipe member 17 is also inclined to correspond to the inclined portion of the stem bed (13). That is, the inclined surface 131 is formed on the upper portion of the stem bed 13, and the inclined surface 173 corresponding to the inclined surface 131 of the stem bed 13 is formed on the lower surface of the tubular member 17.

Therefore, when the stem 12 is raised to bring the stem bed 13 into close contact with the tubular member 17, the inclined surface 131 of the stem bed 13 is drawn into the inclined surface 173 of the tubular member 17. It will be in close contact. As a result, the airtightness of the valve is further improved, and the lifting and lowering system bed 13 of the stem bed 13 can always be in close contact with the correct position of the pipe member 17.

10 is a cross-sectional view of a bellows valve according to another exemplary embodiment. As shown in FIG. 10, an elastic member 19 may be further provided below the stem 12. That is, the elastic member 19 is disposed below the locking member 121 fastened to the lower portion of the stem 12. The elastic member 19 elastically supports the locking member 121 in a direction in which the stem bed 13 blocks the flow path 111, that is, in an upper direction. Therefore, when the stem bed 13 closes the flow path 111, more stable operation can be ensured.

In addition, a color display unit may be formed on the outer circumference of the button 15. The color display part is made of a color distinct from the color of the locking member 16, so that it can be easily identified without opening or closing the valve from the outside.

The button-type bellows valve has been described with reference to the embodiment shown in the drawings, but this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope should be defined by the technical spirit of the appended claims.

1 is a perspective view of a conventional bellows valve.

2 is a cross-sectional view of a conventional bellows valve.

3 is a perspective view of a bellows valve according to one embodiment;

4 is an exploded perspective view of the bellows valve according to one embodiment;

5 is a cross-sectional view of the bellows valve according to one embodiment.

6 and 7 are cross-sectional views of the bellows valve showing an example of the operation of FIG.

8 is an enlarged cross-sectional view of "A" in FIG.

9 is a side view of a button according to a modification of FIG. 5.

10 is a sectional view of a bellows valve according to another embodiment;

<Description of the symbols for the main parts of the drawings>

1: bellows valve 11: body

111: Euro 12: stem

13: stem bed 14: bellows

15: button 151: notch

152: first parallel portion 153: inclined portion

154: second parallel portion 16: locking member

161: rotating part 162: holder

163: support

Claims (6)

A body having a flow path formed therein and an inflow path interposed on the flow path of the body and having a flow path through which the fluid flowing in the flow path is formed, and a discharge path for discharging the fluid introduced into the inflow path at the side surface. And a stem connected to the elevable inside of the pipe member, a stem bed closing or opening the inflow passage by the elevating and descending of the stem, a bellows formed at an outer periphery of the stem, and In the bellows valve comprising a button coupled to the upper and lowered integrally with the stem and a locking member for fixing the lowered or raised state of the button when the button is raised or lowered, The button is formed in a cylindrical shape and the notch portion is formed in one side concave, The locking member includes a rotating part rotatable about the button, a holder installed inside the rotating part and fixed to the notch part to fix the button, and a support part elastically pressing the holder in a lateral direction of the button. A bellows valve characterized by the above-mentioned. delete The method of claim 1, The notch part, A first parallel portion formed in parallel to be orthogonal to the longitudinal direction of the button, An inclined portion extending obliquely from the first parallel portion; And a second parallel portion extending from the inclined portion in parallel with the first parallel portion. The method of claim 1, The stem bed is formed to be inclined so as to be smaller in diameter toward the top, the lower surface of the pipe member is characterized in that the bellows valve is formed to be inclined corresponding to the inclined portion of the stem bed. The method of claim 1, And an elastic member for pressurizing the stem in an upward direction to block the flow path inside the body. The method of claim 1, Bellows valve, characterized in that formed on the outer periphery of the button to easily identify whether the valve is opened or closed from the outside without additional manipulation.

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