KR20060087339A - Large diameter manual valve made of resin - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-diameter resin manual valve, and in more detail, in a resin-operated valve used in a semiconductor manufacturing facility piping line or the like, a large diameter having a diameter of 2.54 cm or more in a diameter of a flow passage through which chemicals are passed It relates to a resin manual valve.

The large-diameter resin manual valve includes a lower body having one or more inlets and outlets of a solution formed on both sides thereof, a diaphragm for controlling the flow of fluid by opening and closing a flow path formed in the lower body, and a fluid pressure applied to the diaphragm. In order to disperse, the lower surface protrudes convexly, and a plurality of protrusions are formed on the circumference to fix the male gear-shaped compressor and the diaphragm tightly between the lower body and the male gear-shaped compressor up and down. An upper body having an arm gear shape formed therein so as to be moved inward, and connected to the diaphragm by a shaft, and a handle capable of opening and closing a flow path formed in the valve by the diaphragm by moving the diaphragm up and down by rotation. Contains wealth.

Large diameter, manual valve, resin piping, compressor, auxiliary ring for eye care, connection pipe fitting structure

Description

Large Diameter Resin Manual Valve {LARGE DIAMETER MANUAL VALVE MADE OF RESIN}

1 is a perspective view showing a large-diameter resin manual valve according to an embodiment of the present invention,

FIG. 2 is a sectional view of a manual valve made of a large diameter resin shown in FIG. 1;

3 is an exploded perspective view showing in detail the components of the handle portion of the large-diameter resin valve shown in FIG.

4 is an exploded perspective view showing in detail the components of the valve body portion of the large-diameter resin manual valve shown in FIG. 1;

5 is a perspective view showing in detail the structure of the resin pipe connecting portion of the large-diameter resin manual valve shown in FIG.

6 is a partial cross-sectional perspective view showing in detail the structure of the resin pipe connecting portion shown in FIG.

7 is a cross-sectional view showing the structure of a conventional large-diameter resin manual valve;

8A is a perspective view of a conventional resin manual valve,

8B is a cross-sectional view of FIG. 8A,

8C is a perspective view of the diaphragm used in FIG. 8A.

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

300: valve lower body

400: diaphragm 450: compressor

500: valve upper body 700: handle portion

800: valve opening and closing display device 900: resin pipe connection

1000: Large Diameter Resin Manual Valve

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large-diameter resin manual valve. More specifically, the present invention relates to a resin-operated resin made of a fluorine resin widely used in a semiconductor manufacturing facility piping line, a food production facility piping line, or a chemical production facility piping line. The valve relates to a large-diameter resin manual valve having a diameter of at least 2.54 cm (1 inch) and preferably at least 3.84 cm (3/2 inch) in diameter of a flow passage through which chemicals are passed.

Currently, the semiconductor manufacturing equipment piping line, the food manufacturing equipment piping line, or the chemical manufacturing equipment piping line is an unsaturated poly having excellent heat resistance, chemical resistance, formability, and low shrinkage as piping for supplying chemicals to the manufacturing equipment. In other words, pipes made of fluorine resin are widely used.

For most semiconductor manufacturing facility piping lines, pipes of less than one inch have been widely used. However, as the size of LCD panels, TFT panels, and the like become larger, more chemicals are required than current chemicals, and thus, the necessity of increasing the size of pipes has been raised to improve the efficiency of manufacturing operations.

In accordance with such a requirement, the developed large diameter resin valve has a structure as shown in FIG. As shown in FIG. 7, the structure is similar to that of the conventional resin manual valve 100. However, it can be seen that such a conventional large-diameter resin manual valve 100 is replaced with a cylindrical sled portion 8 by replacing a diaphragm of a general manual valve.

Here, a general manual valve (not shown) has a diaphragm connected to the handle portion by a shaft, and the center portion of the diaphragm is moved up and down by the rotation of the handle portion to perform an operation of opening or closing the flow path. On the other hand, in the large-diameter resin manual valve 100 shown in FIG. 6, the cylindrical spindle 8 is connected by an axis instead of the diaphragm, and the cylindrical spindle 8 moves up and down as the handle part is rotated. To open or close the flow path formed in the lower main body 1 of the valve 100.

The conventional large-diameter resin manual valve adopts a sleeve instead of a diaphragm, and in the case of a chemical solution flowing through a large-diameter resin pipe, it is considerably higher than the internal pressure of the conventional manual valve. This can lead to problems in life. In other words, if a certain pressure is applied to the diaphragm made of a thin film, the diaphragm will be torn, resulting in a significant problem in the function of the valve. For this reason, the conventional large-diameter resin manual valve axially connects the cylindrical sleeve 8 to the handle portion 9 instead of the diaphragm, thereby rotating the handle portion 9 so that the sleeve 8 moves up and down. It can be seen that the lower portion of the sleeve 8 has a structure for blocking the flow path.

In the case of such a conventional large-diameter resin manual valve, it can be seen that instead of the diaphragm, a V-packing airtight structure is formed by the sleeve structure. The airtight structure of the V-packing shape by the sleeve structure adopted in the conventional large-diameter resin manual valve 100 has a disadvantage in that it is very difficult to operate the handle. In addition, the sleeve is generally made of PTFE, PCTFE, NEW PTFE, which has a problem of relatively poor chemical resistance in the case of PCTFE, and gas contamination remaining in the O-ring and Bonnet material in the airtight structure of the sleeve There is a problem that there is a possibility.

In addition, in the case of a general resin manual valve, a chemical solution inlet and an outlet are included in the valve body, and a fitting structure for connecting a resin pipe (RESIN PIPE or RESIN TUBE) is provided at the inlet or outlet. It can be seen that the connection fastening pipe structure is made of the same material as that of the resin pipe. In general, it can be seen that the internal pressure of the chemical solution flowing in the large-diameter resin manual valve and the resin pipe is considerably higher than that of the small-diameter resin manual valve. On the other hand, when such a high pressure of the chemical solution is applied, due to the high internal pressure, the pipe fastened to the connection fastening pipe structure formed in the inlet and outlet of the manual valve gradually slips out, and eventually the connection fastening structure is released. Problems such as this occur.

The large-diameter resin manual valve according to the embodiment of the present invention made in view of the above-described disadvantages adopts a diaphragm to facilitate handle operation, and effectively disperses the internal pressure applied to the diaphragm, that is, the airtightness of the valve and It is to provide a large-diameter resin manual valve having a structure for improving performance.

In addition, the large-diameter resin manual valve according to the embodiment of the present invention provides a compressor and its associated structure for efficiently damping the hydraulic pressure of the chemical solution generated in the valve, thereby making it possible to adopt a conventional diaphragm structure To provide a manual valve.

In addition, the large-diameter resin manual valve according to the embodiment of the present invention is a handle of a large-diameter resin manual valve having a valve opening / closing amount display device which visually knows the opening / closing amount of the valve in the handle portion by improving the internal structure of the handle portion. It is to provide wealth.

In addition, the large-diameter resin manual valve according to the embodiment of the present invention provides a connection fastening pipe by providing a sleeve made of a material different from that of the main body in the connection fastening pipe of the handmade valve in order to prevent slippage of the pipe in the connection fastening pipe structure. It is an object to provide a large-diameter resin manual valve capable of tightly and tightly connecting a resin pipe to a resin pipe.

The large-diameter resin manual valve according to the embodiment of the present invention,

A lower body having at least one inlet and outlet of the solution formed on both sides,

Diaphragm for regulating the flow of fluid by opening and closing the flow path formed in the lower body,

In order to disperse the fluid pressure applied to the diaphragm, the lower surface is convex, and a plurality of protrusions are formed on the circumference to form a male gear compressor.

An upper main body in which the diaphragm is hermetically fixed between the lower main body and the female gear shape is formed therein so that the compressor of the male gear shape can be moved up and down inside; and

It is connected to the diaphragm by a shaft and consists of a handle part which can open and close the flow path formed in the valve by the diaphragm by moving the diaphragm up and down by rotation.

In the large-diameter resin manual valve according to the embodiment of the present invention, it is preferable that the handle part comprises a circular handle part main body capable of accommodating the open / close amount display device and the open / close amount display device.

In the large-diameter resin manual valve according to the embodiment of the present invention, the opening and closing amount display device,

Guide disc with a spiral groove on the top for guiding according to the opening and closing degree of the valve,

Two recesses formed slightly apart from the center of the disc and formed at about 60 degrees so that the opening / closing amount display bar for displaying the opening / closing amount can be moved in a straight line according to the rotation amount of the valve

Opening / closing amount display disc with arrow direction indicating valve opening / closing direction,

It is fastened to the two recesses formed on the opening and closing amount display disk, the projection is formed in the lower portion is inserted into the spiral groove formed in the guide disk, and the opening and closing amount display bar corresponding to the rotation amount of the handle portion, and

The opening and closing amount display plate can be distinguished from the opening and closing amount display plate, and comprises a transparent cap having a protrusion formed to prevent any rotation of the opening and closing amount display plate.

In the large-diameter resin manual valve according to the embodiment of the present invention, the compressor is disposed to be movable up and down on a flow portion formed of a thin membrane portion of the diaphragm, and the diaphragm moves up and down to open and close the flow path. It moves along with the flow part to distribute the pressure of the fluid applied to the diaphragm.

In the large-diameter resin manual valve according to the embodiment of the present invention, each of the inlet and the outlet includes a connection fastening portion for connecting the resin pipe, wherein the connection fastening portions of the resin pipe are respectively connected to the lower body of the valve. The formed connector, the resin pipe, the circular ring shape, the sleeve having a wedge-shaped cross-section structure, and a nut can be connected to the valve body tightly and firmly, and the resin pipe is connected from the valve body. Prevent slipping.

In the large-diameter resin manual valve according to the embodiment of the present invention, the sleeve is made of the resin pipe and the connection fastening portion, in order to prevent the resin pipe from slipping from the connection fastening portion formed in the valve body by frictional force. It is made of a different material and is inserted inside the nut when the resin pipe is fastened.

In the large-diameter resin manual valve according to the embodiment of the present invention, the connection fastening portion of the resin pipe may be detachably attached to the circumferential portion of the connector after the resin pipe is completely fastened to the connection fastening portion formed on the lower body of the valve. And a second auxiliary ring, which can be attached to and detached from the nut circumference, to visually monitor the connection state of the pipe connection pipe.

In the large-diameter resin manual valve according to the embodiment of the present invention, each of the first auxiliary ring and the second auxiliary ring includes an arrow mark portion marked in red at a vertex of the circumference, and the arrow mark portion has an optimal pipe condition. After being connected in, they are attached so as to be arranged in a straight line with each other, so that the nut loosening can be easily identified by vibration or the like.

(Example)

Hereinafter, a large diameter resin manual valve according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5.

1 is a perspective view showing a large-diameter resin manual valve according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the large-diameter resin manual valve shown in Figure 1, Figure 3 is a large-diameter resin manual shown in Figure 1 4 is an exploded perspective view showing in detail the components of the handle portion of the valve, Figure 4 is an exploded perspective view showing in detail the components of the valve body portion of the large-diameter resin manual valve shown in Figure 1, Figure 5 is a large diameter shown in Figure 1 It is a perspective view showing the structure of the resin piping connection part of a resin manual valve in detail, and FIG. 6 is a partial cross-sectional perspective view showing the structure of the resin piping connection part shown in FIG. 5 in detail.

In Fig. 1, the large-diameter resin manual valve 1000 has been filed on October 02, 10003 by the present applicant for the resin manual valve shown in Figs. 8A to 8C, as described above in the prior art. It has a structure as described in Korean application No. 10-10003-0068928 entitled "Structure of valve body and diaphragm of manual valve".

Such a resin manual valve 100 generally can be seen that no problem occurs when the inlet and outlet diameter of the valve is generally 2,54 cm (1 inch) or less. However, as already described in the related art, the screens of computer monitors, HDTVs, and digital TVs, and TFT TVs are gradually increasing, and HDTVs of 254 cm (100 inches) or more are being produced. have.

In order to produce such a large LCD panel and TFT panel, it can be seen that productivity is low due to insufficient chemicals in the existing piping equipment. There is an absolute demand for a large-capacity resin piping and a piping line through which a large amount of chemicals can flow, as in the present invention.

However, it is not sufficient to simply increase the diameters of the inlet and outlet of the resin manual valve as shown in Figs. 8A to 8C. This is because, in the case of semiconductor piping lines, high-purity, highly toxic chemicals have to be transported, so that leakage of chemicals not only results in fatal damage to the human life but also significantly affects the productivity of the product.

Accordingly, it can be seen that the large-diameter resin manual valve according to the embodiment of the present invention has improved the airtightness, ease of operation, durability of the valve, and the like to meet such a demand.

In view of this, a large diameter manual valve according to an embodiment of the present invention is generally used for pipes having a diameter of 2.54 cm (1 inch) or more, preferably 3.84 cm (3/2 inch) or more. It can be seen that it refers to a resin manual valve installed in the piping line.

As shown in FIG. 1, the large-diameter resin manual valve 1000 has a lower main body 300 and a diaphragm 400 and FIG. 4 similarly to the configuration of the manual valve shown in FIGS. 8A to 8C which are currently widely used. Reference), a compressor 450 (see FIG. 4), an upper main body 500, a handle part 700, and a pipe connection coupling part 900.

The lower main body 300 has a structure similar to the resin manual valve shown in FIG. 8, and includes inlets and outlets 900 of the solution on both sides, and the inlets and outlets 900 are made of resin, as will be described later. A pipe connection fitting structure is formed for connecting and connecting pipes.

The diaphragm 400 has the same structure as the resin manual valve shown in FIG. 8C, but since the diameter of the pipe flow path through which the chemical flows is large, it is recognized that the size of the diaphragm 40 increases in proportion to the diameter of the flow path. shall.

When the diaphragm 400 becomes large, when the internal pressure of the chemical solution flowing in the valve rises, the thin membrane portion 440 of the diaphragm 400 does not endure the internal pressure of the fluid and is torn, that is, the valve is closed. As a result, the internal pressure of the chemical solution is increased, and the internal pressure of the chemical solution is not tolerated and torn. If such diaphragms are torn, problems arise that have a significant adverse effect on the product produced and fail to produce a normal product. Therefore, the airtightness of the large diameter resin manual valve 1000 depends on the performance of the diaphragm 400. FIG. This problem can be solved by a method of manufacturing the diaphragm 400 itself or by dispersing the internal pressure applied to the diaphragm 400. However, in reality, the manufacture of the diaphragm 400 firmly has considerable difficulty with current materials.

Therefore, the large-diameter resin manual valve 1000 according to the present invention has been adopted to reduce the internal pressure by effectively dispersing the internal pressure applied to the diaphragm 400, which is the above problem. In the large-diameter resin manual valve 1000 according to the embodiment of the present invention, by dispersing the internal pressure of the fluid applied to the diaphragm 400 by about 60% or more by the compressor 450, the existing diaphragm 400 is used as it is. Can be. The large-diameter resin manual valve 1000 employing the diaphragm 400 having such a structure is easier to open and close than the conventional large-diameter resin manual valve 100 employing the cylindrical spindle structure shown in FIG. 7. Can be.

The compressor 450 for effectively dispersing the internal pressure of the fluid applied to the diaphragm 400 will be described later in detail with reference to FIG. 4.

The upper main body 500 of the large-diameter resin manual valve 1000 according to the present invention firmly fixes the diaphragm 400 between the lower main body, and also accommodates the compressor 450, and has a shaft in the center thereof. It consists of a structure including a hole that can penetrate, which will be described later with reference to FIG.

The diaphragm 400 is connected to the handle portion 700 by the shaft 720, and the center portion of the diaphragm 400 moves up and down by the shaft connected thereto by the rotation of the handle portion 700 to open and close the valve. It can be seen that.

Since the handle part 700 of the large-diameter resin manual valve 1000 according to the exemplary embodiment of the present invention includes the opening / closing amount display device 800 of the valve, an arrow mark indicating the opening / closing direction is displayed on the handle part 700. And an opening / closing amount display bar 770 for displaying the opening / closing amount, it is possible to easily determine the opening / closing amount of the valve at the time of operation of the valve. The opening / closing amount display device 800 will be described in detail with reference to an exploded perspective view of the handle part 700 illustrated in FIG. 3.

It can be seen that the inlet and outlet ports 900 of the large-diameter resin manual valve 1000 are formed with resin pipe connection fastening portions 900 as described above with reference to FIG. 8. However, as described above, as the internal pressure applied to the large-diameter resin manual valve 1000 is increased and maintained continuously, the resin pipe or tube made of the same material as the resin pipe connection fastening part 900 of the valve is allowed to maintain its time. As a result of this elapsed, a phenomenon of slipping gradually occurred, resulting in a problem in that the connection was finally released. In order to prevent such a problem, a sleeve 640 having a circular ring shape between the connector and the nut forming the resin pipe connection coupling part 900, having a wedge shape in cross section, and made of a material different from that of the resin pipe or tube. ) Is inserted into the inside of the nut. Since the sleeve 640 is made of a material having a high friction rate, for example, TVFE, ECDFE, or the like, among the engineering plastics different from the resin connection coupling part 900 and the resin pipe or tube, the resin pipe or tube is made of resin. It can be seen that the sliding phenomenon can be prevented. In addition, the resin pipe connection coupling part 900 further includes a pair of auxiliary rings 610 and 620 for visually identifying that the nut 650 is loosened due to vibration or the like.

The structure of the resin pipe connection coupling part 900 will be described in detail with reference to FIGS. 5 and 6.

1 and 2, the structure of the manual valve portion of the large-diameter resin manual valve 1000 is named "Structure of the valve body and diaphragm of the manual valve" filed by the applicant on October 2, 10003. And in patent application 10-2004-0057455 filed on July 23, 2004 and filed on July 23, 2004. In addition, it can be seen that the conventional technology of the present invention has the same function and structure as the manual valve 20 shown in FIG. 8.

The manual valve portion 900 rotates the handle portion 700 so that the flow of chemicals is opened or blocked by the diaphragm 400 axially supported by the handle portion 700. Here, the structure of the diaphragm 400 is shown in detail in the patent application filed by the applicant of the present invention, and has the structure shown in FIGS. 8B to 8C presented as the prior art of the present invention, which is different from the prior art. It can be seen that the diameter of the diaphragm is much larger than the conventional diaphragm.

As shown in FIG. 3, the handle part 700 of the large-diameter resin manual valve 1000 includes a circular handle part body 710, a guide disc 730, a disc 750 for displaying an opening / closing amount, The opening / closing amount display bar 770 and the opening / closing amount display device 800 of the valve formed of the transparent cap 7900 correspond to the amount of rotation of the handle part.

The handle body 710 is formed to accommodate each component of the opening / closing amount display device 800 for visually indicating the opening / closing amount of the valve formed in the handle part 700, and is easily rotated outside. In order to achieve this, a plurality of concave grooves are formed. In addition, the handle part main body 710 is rotatably supported by the upper main body of the valve.

The opening / closing amount display device 800 may include a guide disc 730 having a spiral groove formed thereon to guide the opening / closing amount of the valve, and an opening / closing amount display bar for displaying the opening / closing amount in a straight line according to the rotation amount of the valve. It includes two recesses (753) formed slightly away from the center of the disc so as to be radially formed at about 60 degrees, the opening and closing amount display disc 750 printed at the time of the arrow indicating the opening and closing direction of the valve, the opening and closing Opening / closing amount indication corresponding to the amount of rotation of the handle part 700 is fastened to two recesses formed on the amount display disk 750 and a protrusion is formed at the bottom thereof to be inserted into a spiral groove formed in the guide disk 730. On the bar 770, the opening and closing amount display disk 750 can be identified by the opening and closing amount display, it is composed of a transparent cap 790 is formed with a projection to prevent any rotation of the opening and closing amount display disk.

Hereinafter, referring to an exploded perspective view of the large-diameter resin manual valve 1000 shown in FIG. 4, the compressor for dispersing internal pressure applied to the upper body 500, the diaphragm 400, and the diaphragm of the large-diameter resin manual valve 1000. 450 will be described in detail.

In FIG. 4, the structure of the diaphragm 400 has a shape as shown in FIGS. 8B and 8C, and a fastening portion 33 that is firmly fixed between the upper body and the lower body and the upper body of the valve is thin. It consists of the membrane part 35 and the central flow path closure part 37 formed in the lower body of the valve.

As described above, the large-diameter resin manual valve 1000 according to the embodiment of the present invention is an important point of how to inject the internal pressure applied to the diaphragm 400, and thus, a fastening part (circular rim portion of the diaphragm 400). 33 is configured to be hermetically fixed between the upper body 500 and the lower body 300 of the valve. On the thin film portion 35 of the diaphragm 400 a compressor 450 having the same diameter as this is arranged. Compressor 450 is configured as a male gear (male gear) having a plurality of protrusions as shown in FIG. The upper plane has a flat structure and the lower side is inclined downward. The lower part is formed to coincide with the thin film part 35 which is the flow part of a diaphragm as a whole. The compressor 450 includes a hole in the center of the compressor 450 so as to be moved up and down along the axis fixed to the diaphragm 400. When the compressor 450 hermetically closes the flow path of the valve by its own weight, the compressor 450 descends like the thin membrane portion 35 of the diaphragm, and when the flow path of the valve is opened, the diaphragm 400 rises. Accordingly, it is inserted into the groove 550 of the arm gear form formed inside the upper body. Here, the upper body of the valve is formed with a groove 550 in the form of a female gear having the same shape to accommodate the compressor 450 in FIG. 4.

The groove portion 550 of the female gear shape formed inside the upper body of the valve is characterized in that the compressor 450 is slightly large enough to be free to move up and down.

The compressor 450 is for dispersing the internal pressure of a fluid such as a chemical solution applied to the diaphragm 450. When the compressor 450 is used, the internal pressure of the fluid applied to the diaphragm is not used. By dispersing about 60 to 70%, the diaphragm 450 serves to prevent the diaphragm 450 from being torn or broken by the internal pressure of the fluid, thereby improving the product reliability of the large-diameter resin valve.

Hereinafter, the resin pipe connection coupling part 900 formed in the lower main body of the large diameter resin valve will be described in detail with reference to FIGS. 5 and 6.

5 and 6, a pipe connection coupling part 900 for hermetically fastening the resin pipe 630 to each of the inlets and outlets 900 formed on both sides of the lower main body of the large-diameter resin manual valve 1000. Include. The pipe connection coupling part 900 formed on the large-diameter resin manual valve 1000 includes a connector 660 integrally protruding from the valve body, and a nut for connecting and fastening the resin pipe 630 to the connector 660. 650, an annular ring inserted into the nut to prevent slipping of the resin pipe, and having a wedge shape in its cross section, a sleeve 640 having a cross section, a first auxiliary ring 610 inserted into the connector, and the nut 650 It consists of a second auxiliary ring 620 is inserted into.

First, the resin pipe 630 is expanded and inserted into the connector 660, and then tightly and tightly fastened by the nut 650. At this time, when the sleeve 640 made of a material different from the connection coupling part and the resin pipe is completely inserted into the nut, the resin pipe 630 tends to slide gradually due to the internal pressure acting in the valve. This is because the connection coupling part 900 and the resin pipe 630 are made of the same material. Therefore, a resin pipe in which a sleeve 640 having a ring shape having a ring shape and having a wedge shape in a cross section is made of a material different from the connection coupling part 900 and the resin pipe 630, for example, engineering plastic and material. By inserting in the connector, when the connector and the nut are connected to each other, the resin pipe is prevented from slipping out by the sleeve having different frictional force, thereby improving the reliability of the connection coupling in the connection coupling portion 900. Can be improved.

Then, the first auxiliary ring 610 and the nut 650 at the circumference of the connector 660 in the best tightening state in which the connector 660, the resin pipe 630, the sleeve 640 and the nut 650 are hermetically fastened. The second auxiliary ring 620 is mounted on the circumference of the) to visually monitor the state of the fastening. In other words, the first and second auxiliary rings 610 and 620 have arrow marks coated in red or the like so as to be clearly distinguished by the eyes so as to face each other. Accordingly, the first and second auxiliary rings 610 and 620 are fitted to match the arrow marks formed on the first and second auxiliary rings 610 and 620 in the state where the connection fastening tube is in the best connection fastening state. When the nut 650 of the connection fastening pipe is loosened due to vibration or the like, the arrow indicators are shifted from each other to visually monitor the fastening state of the connection fastening pipe.

The large-diameter resin manual valve according to the embodiment of the present invention has a merit of adopting a diaphragm and having a structure for improving the durability of the diaphragm, that is, a structure including a compressor, so that handle operation is easy.

In addition, the large-diameter resin manual valve according to the embodiment of the present invention, by providing a compressor and its associated structure for effectively damping the hydraulic pressure of the chemical solution generated in the valve, there is an effect that can adopt the conventional diaphragm structure have.

In addition, the large-diameter resin manual valve according to the embodiment of the present invention has an advantage that the opening and closing amount of the valve can be visually easily identified by improving the internal structure of the handle portion.                     

In addition, the large-diameter resin manual valve according to the embodiment of the present invention is a ring made of a material different from the material of the valve body and the resin piping in the nut of the connection coupling portion of the resin valve in order to prevent the sliding of the pipe in the connection coupling pipe structure. By providing a sleeve having a shape and having a wedge-shaped cross section, there is an advantage that the resin pipe can be hermetically and firmly connected to the connection coupling pipe.

Embodiments of the invention shown in detail in the drawings and described in detail in the above embodiments should not be construed as limiting the technical spirit of the invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change the technical spirit of the present invention in various forms. Accordingly, such improvements and modifications will fall within the protection scope of the present invention, which will be apparent to those skilled in the art.

Claims (8)

In the large-diameter resin manual valve installed in the piping line to provide a large amount of chemical solution to the manufacturing facility, A lower body having at least one inlet and outlet of the solution formed on both sides, Diaphragm for controlling the flow of fluid by opening and closing the flow path formed in the lower body, In order to disperse the fluid pressure applied to the diaphragm, the lower surface is convex, and a plurality of protrusions are formed on the circumference to form a male gear compressor. An upper main body having the female gear shape formed therein so as to hermetically fix the diaphragm between the lower main body and to allow the male-shaped compressor to move up and down inside; A handle portion connected to the diaphragm by a shaft and capable of opening and closing a flow path formed in the valve by the diaphragm by moving the diaphragm up and down by rotation. Large diameter resin manual valve comprising a. The method of claim 1, wherein the handle portion, A large-diameter resin manual valve comprising a circular handle portion body capable of accommodating an opening / closing amount display device and an opening / closing amount display device. The method according to claim 2, wherein the opening and closing amount display device, Guide disc with a spiral groove on the top for guiding according to the opening and closing degree of the valve, Two recesses formed slightly away from the center of the disc and formed at about 60 degrees so that the opening / closing amount display bar for displaying the opening / closing amount can be moved in a straight line according to the rotation amount of the valve, Opening / closing amount display disc with arrow direction indicating valve opening / closing direction, It is fastened to two recesses formed on the opening and closing amount display disc, and a protrusion is formed at the bottom thereof and inserted into a spiral groove formed in the guide disc to correspond to the rotation amount of the handle part, and Transparent cap that can identify the opening and closing amount indication on the opening and closing amount display disc, and has a protrusion formed to prevent any rotation of the opening and closing amount indication disc. Manual valve made of a large diameter resin, characterized in that consisting of. The diaphragm of claim 1, wherein the compressor is disposed to be movable up and down on a flow portion formed of a thin film portion of the diaphragm, and when the diaphragm moves up and down for opening and closing the flow path, the compressor moves together with the flow portion to the diaphragm. A large-diameter resin manual valve which performs a function of dispersing a pressure of an applied fluid. 2. The connector of claim 1, wherein each of the inlet and the outlet includes a connection fastening portion capable of connecting a resin pipe, wherein the connection fastening portion of the resin pipe is a connector, a resin pipe, and a circular ring formed on the lower body of the valve, respectively. And a sleeve having a wedge-shaped cross-sectional structure and a nut, the resin pipe can be hermetically and firmly connected to the valve body, and the resin pipe is prevented from slipping from the valve body. Large Diameter Resin Manual Valve. 6. The sleeve according to claim 5, wherein the sleeve is made of a material different from that of the resin pipe and the connection fastening part so as to prevent the resin pipe from slipping from the connection fastening part formed in the valve body by frictional force. Large diameter resin manual valve, characterized in that inserted into the inside of the nut when tightening the pipe. 6. The connecting fastening portion of the resin pipe according to claim 5, wherein the connection fastening part of the resin pipe comprises: a first auxiliary ring which can be attached to and detached from the circumferential portion of the connector after the resin pipe is completely fastened to the connection fastening part formed on the lower body of the valve; A TS valve for a resin pipe line comprising a second auxiliary ring which can be attached to and detached from a nut circumference to visually monitor a connection state of the pipe connecting pipe. 6. The apparatus of claim 5, wherein the first auxiliary ring and the second auxiliary ring each include an arrow mark portion marked in red at a vertex of the circumference, and the arrow mark portions are aligned with each other after the pipe is connected in an optimal state. A TS valve for a resin piping line, which is attached to be disposed.

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