KR102172920B1 - Sealing ability reinforced type valve - Google Patents

Abstract

The present invention relates to a valve with reinforced sealing power. An objective of the present invention is to apply airtight power multiple times to prevent fluid flowing through a fluid passage from leaking to the outside of a valve and completely prevent the fluid from flowing into a rotary shaft which rotates a valve disk. According to the present invention, the valve with reinforced sealing power comprises: a valve body unit having a fluid passage to allow fluid to flow; a valve disk to open and close the fluid passage by the operation of a rotary shaft provided on the valve body unit; a flange mounted on the outer circumference of the valve body unit and provided with rotary guide holes formed therein to face each other, wherein the rotary guide holes are connected to the fluid passage and guide the rotation of the rotary shaft; and a packing unit mounted on the outer circumference of the rotary shaft at the entrance side of the rotation guide hole into which the rotary shaft is inserted.

Description

Sealing force reinforced valve {SEALING ABILITY REINFORCED TYPE VALVE}

The present invention relates to a sealing force reinforcing valve, and more particularly, by applying multiple airtight forces to prevent the fluid flowing through the fluid passage from leaking out of the valve, while preventing the fluid from flowing into the rotating shaft that rotates the valve disk. It relates to a sealing force reinforced valve that can prevent deterioration of the life or function of the product by blocking it with

In general, a valve is installed on a passage through which a fluid, for example, water, oil, or gas, flows, and is used to open or close the flow of the fluid, and has a feature of occupying less installation space than other valves.

These valves include a valve body having a fluid passage through which fluid can flow, a valve shaft connected to and controlling the valve disk, a seat fixing part that fixes it to the valve body, and a valve disk located between the seat fixing part and the valve body. There is one consisting of a sheet that controls the movement and flow of fluid according to the position of.

In addition, the conventional valve includes a packing or sealing to prevent leakage of the fluid to the outside while allowing the fluid to flow only through the fluid passage.

However, since the conventional valve has a very simple and simple packing structure or sealing structure, there is a problem in that it cannot prevent the fluid flowing through the fluid passage from flowing into the valve shaft or the friction reducing bushing mounted on the valve shaft.

In particular, when a fluid having a hardening property at room temperature, such as sugar powder, is deposited on the valve shaft and then hardens, there is a problem in that the valve shaft does not operate normally or completely stops the operation of the valve shaft.

For this reason, conventional valves are used by replacing the valve shaft every about 3 months or removing fluid from the valve body and then combining the valve shaft with the valve body, which incurs unnecessary maintenance costs and There is a problem that the discomfort of the person increases.

In addition, since the conventional valve has a very simple and simple packing structure or sealing structure as described above, there is a problem in that it is not possible to completely block a phenomenon in which fluid leaks out of the valve body. In addition, when the fluid is a toxic chemical substance, there is a problem in that it causes corrosion by contacting various components of the valve in the process of leaking out of the valve body.

In addition, when a fluid of a chemical substance leaks out of the valve body and the worker inhales it, life is endangered, so it is urgent to develop a valve having excellent packing power or sealing power.

Registration Utility Model No. 20-0358253 (2004. 08. 05. Announcement)

The present invention was conceived to solve the problems of the prior art, and the fluid flowing through the fluid passage is prevented from leaking to the outside of the valve by applying multiple airtight forces, while the fluid is introduced to the rotating shaft rotating the valve disk. Its purpose is to provide a sealing force reinforced valve that can prevent deterioration of the life or function of the product by fundamentally blocking the product and protect the safety of workers.

The sealing force reinforcing type valve according to the present invention includes a valve body portion in which a fluid passage is formed so that a fluid flows, a valve disk capable of opening and closing the fluid passage by operation of a rotation shaft provided in the valve body portion, and the valve body portion. A flange mounted on the outer periphery and connected to the fluid passage inside and formed so that the rotation guide holes for guiding the rotation of the rotation shaft face each other, and a packing mounted on the outer circumference of the rotation shaft at the entrance side of the rotation guide hole into which the rotation shaft is inserted Part, a base in which an inner mounting groove and an outer mounting groove are formed in close contact with the packing part while surrounding the outer periphery of the rotating shaft and located diagonally to each other on the inner periphery and outer periphery, and the receiving groove is formed at the inner periphery of the end, Each of the mounting grooves and the external mounting grooves are attached to the rotation shaft or the inner wall surface of the rotation guide hole, and consists of a pair of additional sealing parts, so that both ends of the accommodation groove are in contact with each other so that the entire body is accommodated to prevent separation that surrounds the rotation shaft. A portion, a pressing portion for pressing the base toward the packing portion, and an additional packing portion respectively mounted on the outer periphery of the rotating shaft at the ends of both rotation guide holes facing the valve disk, the packing portion and the additional packing portion Applied, stacked in multiple stages with each other, or arranged to be lined up.

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The sealing force reinforcement type valve according to the present invention can be used semi-permanently by fundamentally blocking the inflow of a fluid having a property of hardening at room temperature such as sugar powder into the rotating shaft, and preventing the product's life from deteriorating. There is.

In addition, by applying and securing airtightness multiple times, it is possible to block the fluid from leaking to the outside of the valve at all, and when the fluid is applied as a toxic chemical, it is possible to prevent corrosion by preventing contact with each component. , There is an effect that can protect safety by preventing workers from inhaling toxic chemicals.

1 is a cross-sectional view showing a sealing force reinforcing valve according to the present invention.
2 is an enlarged view of part A of FIG. 1.
3 is an enlarged view of part B of FIG. 1.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only these embodiments make the disclosure of the present invention complete, and are common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. The same reference numerals are assigned to similar parts throughout the specification.

1 is a cross-sectional view showing a sealing force reinforcing valve according to the present invention, FIG. 2 is an enlarged view of part A of FIG. 1, and FIG. 3 is an enlarged view of part B of FIG. 1.

The sealing force reinforcing valve 1 according to the present invention can selectively freely control the transfer of fluid, and in particular, by preventing the fluid from leaking out of the fluid passage 10a of the valve or out of the valve, defects and failures in the product It can be prevented from occurring, and can provide an effect that can protect the safety of workers.

The sealing force reinforcing type valve 1 according to the present invention may include a valve body part, a valve disk 20, a flange 30, and a packing part 40 to provide the above-described effect.

The valve body portion 10 has a fluid passage 10a through which various types of fluids such as various powders, sludge, and toxic chemical substances such as nitric acid may pass, and between the pipe passages D of the fluid line. It is fixed.

On the inner periphery of the valve body portion 10, a sealing seat 12 that contacts the edge surface of the valve disk 20 when the valve disk 20 opens and closes the fluid passage 10a is fixed by a retainer.

In addition, the valve body portion 10 may further include a rotation shaft 11 for controlling the operation of the valve disk 20.

The valve disk 20 is disposed in the fluid passage 10a of the valve body 10 and is connected to the rotating shaft 11.

The valve disk 20 is rotated by the operation of the rotation shaft 11 to open the fluid passage 10a to allow the fluid to flow, or close the fluid passage 10a to block the flow of the fluid.

The flange 30 is formed on the outer periphery of the valve body 10.

The flange is connected to the fluid passage 10a and has a rotation guide hole 31 that guides the rotation of the rotation shaft 11.

The rotation guide hole 31 is formed to face each other with a fluid passage 10a therebetween, and FIG. 1 shows an example in which the rotation guide hole 31 is formed to face each other in a vertical direction.

And, the aforementioned rotation shaft 11 is accommodated in the rotation guide hole 31 through the upper inlet 31a of the rotation guide hole 31, and the lower end of the upper portion 11a is fixed to the upper end of the valve disk 20 And, the upper end of the lower part (11b) may be fixed to the lower end of the valve disk (20).

As another example, the rotation shaft 11 may be fixed in such a way that it is not divided into an upper portion 11a and a lower portion 11b but is integrally formed and penetrates the valve disk 20.

In addition, a friction reducing bushing 100 for smoothly rotating the rotating shaft 11 is mounted on the upper and lower sides of the rotating shaft 11, respectively.

The packing part 40 is mounted on the outer periphery of the rotation shaft 11 at the inlet 31a side of the rotation guide hole 31 into which the rotation shaft 11 is first inserted, and the fluid flowing through the fluid passage 10a is located on the upper side. Even if it rises through the space between the flange 30 and the friction reducing bushing 100 or between the flange 30 and the rotation shaft 11, it does not leak out to the outside.

At this time, the packing portion 40 is applied in plural and disposed to be stacked in multiple stages on the upper side of the friction reducing bushing 100 positioned on the upper side.

That is, since the rotation guide hole 31 can be sealed in multiple numbers through the plurality of packing parts 40, the loss of fluid can be efficiently prevented.

At this time, the packing portion 40 may be formed of a material that can be stretched, and a widening guide groove 41 is formed on the bottom surface in a shape whose width gradually narrows from the top to the bottom.

The packing part 40 having such a structure completely seals between the rotation shaft 11 and the inner wall surface of the rotation guide hole 31 while being pressed and opened by the base 50 and the pressing part 80 to be described later. Therefore, it is possible to efficiently prevent the fluid from leaking out through the rotation guide hole 31.

The base 50 is accommodated on the inlet 31a side of the rotation guide hole 31 and is seated on the upper surface of the packing portion 40 located at the top while surrounding the outer periphery of the rotation shaft 11.

And, the inner and outer periphery of the base 50 is formed with an inner mounting groove and an outer mounting groove, respectively, and the upper inner periphery is formed with a receiving groove.

In this case, as shown in FIG. 2, the inner mounting groove is located lower than the outer mounting groove, and the inner mounting groove and the outer mounting groove are located diagonally to each other.

Additional sealing portions 60 formed of a material having excellent sealing power such as rubber, graphite, and Teflon are mounted in the inner and outer mounting grooves, respectively.

The additional sealing part 60 mounted in the inner mounting groove prevents fluid from leaking through the space between the base 50 and the rotation shaft 11 in contact with the outer periphery of the rotation shaft 11, and is mounted in the outer mounting groove. The additional sealing part 60 contacts the inner wall surface of the rotation guide hole 31 and prevents fluid from leaking through the space between the base 50 and the inner wall surface of the rotation guide hole 31.

In addition, a separation preventing portion 70 for preventing separation of the rotation shaft 11 is accommodated in the receiving groove.

The separation prevention part 70 is composed of two pairs, and the receiving groove is formed in a semicircular shape by being formed in a circular cross-sectional shape.

The separation prevention part 70 wraps the outer periphery of the rotation shaft 11 in a state accommodated and supported in the receiving groove so that both ends contact each other so that the rotation guide hole 31 does not deviate from the rotation guide hole 31 and is stably fixed.

In this case, the departure prevention part 70 may be formed of a metal material having excellent rigidity so as to stably fix the rotation shaft 11.

The pressing unit 80 is to press the above-described base 50, is accommodated in the stepped groove 31b formed in the inner periphery of the rotation guide hole 31, and contacts the upper surface of the base 50.

At this time, the pressing part 80 is accommodated in the stepped groove 31b in a force-fitting manner, and as the base 50 is pressed in the direction of the packing part 40, the packing part 40 is widened by the guide groove 41. It is to be in close contact with the inner wall surface of the rotation shaft 11 and the rotation guide hole 31 while being built.

On the other hand, the sealing force reinforcing valve 1 according to the present invention includes the above-described packing part 40, the base 50 part, and the rotation shaft 11 and the friction reducing bushing 100 located below the fluid in the fluid passage 10a. ) It may further include an additional packing portion 90 for fundamentally blocking leakage to the side.

Specifically, the friction reducing bushing 100 is not located on the lower side of the rotation guide hole 31 located at the top of the valve disk 20 and the rotation guide hole 31 located at the bottom of the valve disk 20. Unless free spaces 31c and 31d are respectively formed, and the additional packing part 90 is mounted on the outer periphery of the rotation shaft 11 while being accommodated in the free spaces 31c and 31d, respectively.

At this time, the additional packing unit 90 is applied in a plurality so as to perform the same function as the packing unit 40 described above, and is stacked in multiple stages.

In addition, the additional packing part 90 may be formed of a material that can be stretched and contracted in the same way as the packing part 40, and a widening guide groove 91 formed in a shape whose width gradually narrows from the top to the bottom is formed on the bottom surface. Is formed.

Therefore, the additional packing parts 90 accommodated in the free space 31c located on the upper part of the valve disk 20 are pressed and opened by the friction reducing bushing 100 located at the upper part, and the lower part of the valve disk 20 The additional packing parts 90 accommodated in the free space 31d located at are pressed and opened by the friction reducing bushing 100 located at the bottom.

Accordingly, the additional packing parts 90 completely seal each of the free spaces 31c and 31d so that the fluid flows into the rotation guide hole 31 so that the rotation shaft 11, the friction reduction bushing 100, and the base 50 Prevent it from flowing to your back.

In particular, when a fluid having a property of hardening at room temperature such as sugar powder flows into the rotation guide hole 31 and is buried on the rotation shaft 11, it interferes or stops the rotational operation of the rotation shaft 11, so that the conventional valve is about 3 Although the rotation shaft 11 was replaced every month or the cumbersome operation of removing the sugar powder solidified on the rotation shaft 11 was performed, the sealing force reinforcing valve 1 according to the present invention is provided with a fluid through the additional packing part 90. As the fluid flowing through the passage 10a flows into the rotation guide hole 31 to be prevented from being hardened by being buried on the rotation shaft 11, it is possible to use it semi-permanently and improve convenience in use.

Further, the sealing force reinforcing type valve 1 according to the present invention has multiple applications and securing airtightness through the above-described packing part 40, additional sealing part 60, and additional packing part 90, so that the fluid It can be completely blocked so as not to leak to the outside, and in particular, even if the fluid is applied as a toxic chemical, it is possible to fundamentally block the inflow of the fluid into the rotation guide hole 31 through the additional packing part 90, so the rotation shaft 11, friction The reduction bushing 100, the additional sealing part 60, the separation prevention part 70, the pressurization part 80, etc. can be prevented from being corroded, and the safety is protected by preventing workers from inhaling toxic chemicals. It can also provide advantages that can be given.

Those of ordinary skill in the art to which the present invention pertains will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting. The scope of the present invention is indicated by the scope of the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. Must be interpreted.

1: sealing force reinforced valve 10: valve body part
10a: fluid passage 11: rotating shaft
11a: upper part 11b: lower part
12: sealing seat 20: valve disk
30: flange 31: rotation guide hole
31a: entrance 31b: stepped groove
31c, 31d: free space 40: packing part
41,91: widening guide groove 50: base
60: additional sealing part 70: separation prevention part
80: pressure part 90: additional packing part

Claims (5)

A valve body portion in which a fluid passage is formed so that fluid flows,
A valve disk capable of opening and closing the fluid passage by an operation of a rotating shaft provided in the valve body portion,
A flange mounted on the outer periphery of the valve body portion and connected to the fluid passage therein and formed to face each other with rotation guide holes guiding the rotation of the rotation shaft;
A packing part mounted on the outer periphery of the rotation shaft at the inner entrance side of the rotation guide hole into which the rotation shaft is inserted,
In the rotation guide hole, the base is in close contact with the packing part while surrounding the outer periphery of the rotating shaft, the inner and outer mounting grooves are formed diagonally to each other on the inner and outer peripheries, and the receiving groove is formed at the inner periphery of the end,
An additional sealing portion mounted in the inner mounting groove and the outer mounting groove, respectively, in contact with the inner wall surface of the rotating shaft or the rotating guide hole,
It is composed of a pair of two, while the whole is accommodated so that both ends of the receiving groove are in contact with each other, a separation prevention unit surrounding the rotation shaft,
A pressing part that presses the base in the direction of the packing part in the rotation guide hole,
Including an additional packing portion respectively mounted on the outer periphery of the rotation shaft at the ends of both rotation guide holes facing the valve disk,
The packing part and the additional packing part are applied in a plurality, and are stacked in multiple stages with each other, or a sealing force reinforced valve arranged to be arranged.
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