KR102441478B1 - manufacturing method of valve having unitary valve stem with handle spindle cap - Google Patents

Abstract

According to the present invention, a manufacturing method of a valve having a handle spindle cap-integrated valve rod comprises: a step of preparing a valve body; a step of preparing a disk; a step of preparing a cover; a step of preparing an integrated valve rod; a step of preparing a division assembly type press; a step of coupling a disk and a lower end of a bar of the integrated valve rod; a step of installing the disk; a step of coupling the cover; and a step of assembling the division assembly type press. Provided is the manufacturing method of a valve having a handle spindle cap-integrated valve rod, which can reduce maintenance and management costs.

Description

Manufacturing method of valve having unitary valve stem with handle spindle cap

The present invention relates to a method of manufacturing a valve having a handle spindle cap-integrated valve stem, and more particularly, frequent rotation operation when rotating the valve by inserting the handle spindle from the ground to the valve stem of a valve installed underground. The handle spindle cap on the upper part of the existing valve stem is easily separated from the valve stem, which prevents easy failure or loss of the handle spindle cap in advance. It can eliminate the need for construction such as re-construction of ground digging or repair or replacement of the entire valve due to the The present invention relates to a method for manufacturing a valve having an integrated handle and spindle cap valve stem that can be miniaturized with a compact configuration and can be easily disassembled and reassembled to facilitate maintenance work and reduce maintenance costs. .

In general, a water drain valve is installed in a water pipe to temporarily control the water flowing from the inside in order to maintain the water pipe.

Such a water drain valve is a type of gate valve installed in a pipe line, etc., and is also called a slew valve, and an air discharge valve is installed on one side to remove the air contained in the water and the air introduced during maintenance work, and the water draining valve is installed on one side. A packing is interposed and installed in the connection part of the valve and the water supply pipe to prevent water leakage.

The water drain valve has a valve body formed at the center of a flow path pipe through which a fluid flows, and a valve stem for opening and closing the conduit while moving up and down is installed at the center of the valve body.

In addition, a protection cylinder is installed on the outer side of the water drain valve, and an upper surface of the protection cylinder is installed so as to be in contact with the ground.

At this time, the handle spindle is inserted into the inner portion of the protection cylinder, coupled to the head portion of the valve stem and moved up and down by rotating the valve stem to open and close the conduit.

However, the shape of the head of the valve stem formed as described above is a general structure of a water valve, and it has a rectangular shape, so it can be used by the general public. There was a problem that caused a setback and caused great inconvenience to the residents.

On the other hand, in order to solve the above problems, the technology of assembling the spindle cap on the head formed at the top of the valve stem and using it is disclosed in Republic of Korea Utility Model Publication No. 20-0168586 (Registered on November 11, 1999, hereinafter 'Patent Document 1') ') is disclosed.

In the disclosed spindle cap, a cap head is formed in a triangular shape rather than a general rectangular shape at the upper end, the spindle cap is coupled to the head of the valve stem, and a handle spindle having a fixing pin is coupled to the cap head. It is made to operate by rotating it.

However, in the case of using the spindle cap on the upper part of the valve stem as above, the installation work is difficult and complicated because the spindle cap must be fixed by fastening the bolt to the head of the valve stem, and the spindle cap is easily removed and lost. , to find the spindle cap lost due to this, dig all the ground around the valve using separate equipment, and after finding the spindle cap, there is a problem such as having to fill the circumference of the valve with soil again.

As such, there are problems in that consumption costs are excessively used due to the loss of the spindle cap, equipment must be mobilized, and workers must be separately input.

In addition, when the valve seat is used for a long period of time, there is a problem in that the operation becomes difficult due to aging or wear of the square corner of the head, making it difficult to rotate.

Republic of Korea Utility Model Publication No. 20-0168586 (registered on November 11, 1999)

An object of the present invention is to easily separate and detach the handle spindle cap from the existing valve stem by frequent rotational operation, etc. It prevents easy breakdown or loss of the handle spindle cap in advance, so there is no need for construction such as digging the ground or repairing or replacing the entire valve due to the handle spindle cap lost during use after completion of the underground installation or breakdown, etc. It has a simpler structure than the existing valve stem, which reduces the weight, making installation and assembly easier, reducing production cost and construction cost cost, making it possible to miniaturize the overall compact configuration, and easy disassembly and reassembly and installation It is an object of the present invention to provide a method of manufacturing a valve having a handle spindle cap-integrated valve stem capable of reducing maintenance costs by making maintenance work more convenient.

In order to achieve the above object, a method for manufacturing a valve having a handle spindle cap-integrated valve stem according to the present invention includes: a conduit passing through the upper and lower sides in the transverse direction, and an upper portion communicating with the conduit from the middle portion of the conduit to the upper side. providing a valve body to have an inverted 'T' shape as a whole, including a disk lifting unit that protrudes and extends into the furnace; providing a disc for opening and closing the conduit by a vertical lifting operation through the inside of the disc lifting unit; providing a cover covering the upper portion of the valve body and having a portion penetrating vertically from the center; A step of providing an integral valve seat integrally formed with a handle spindle cap on which a handle spindle operated on the ground is inserted into an upper portion and integrally formed with a bar with a reduced diameter at a lower portion of the handle spindle cap extending downward. ; providing a split assembly type press provided between the handle spindle cap of the integrated valve stem and the cover, and which can be divided and assembled from left to right to surround the integrated valve stem bar; coupling the lower end of the bar and the disk of the integral valve stem; installing the disk to the disk lifting unit of the valve body; inserting the cover into the integrated valve stem so that the integrated valve stem coupled to the lower end of the disk passes through the through portion of the cover, and coupling the cover to an upper portion of the valve body; and assembling the split assembly type press on the upper part of the cover so that the split assembly type press wraps around the bar of the integral valve stem between the lower part of the handle spindle cap of the integral valve stem and the cover. do it with

Here, the step of providing the split assembly type presser is a step of providing a first presser body in which half of the part through which the bar of the integral valve stem passes is formed in any one of the split assembly type presses provided to be symmetrical to each other left and right And, forming the other one of the split assembly type presser provided symmetrically to the left and right and providing a second presser body in which the other half of the part through which the integral valve stem is penetrated is formed on the inside, the first presser body and It is preferable to include the step of providing a presser flange that is respectively formed on the outer lower end of the second presser body coupled to the cover.

And, the method for manufacturing a valve having a handle spindle cap integrated valve stem according to the present invention is installed inside the divided assembly type press between the coupling step of the valve body and the cover and the divided assembly type press assembly step. Preferably, the method further comprises installing a split thrust washer which is provided to be split left and right so as to surround the bar of the valve stem and supports the integral valve stem to prevent separation and separation.

According to the present invention, the handle spindle cap of the existing valve stem is easily separated from the valve stem by frequent rotation operation, etc. By preventing easy failure or loss of the handle spindle cap in advance, there is no need for construction such as digging and re-construction or repair or replacement of the entire valve due to the handle spindle cap lost during use after completion of the underground installation or breakdown. It has a simpler structure than the existing valve stem, which reduces the weight, making installation and assembly easier, reducing production cost and construction cost cost, making it possible to miniaturize the overall compact configuration, and easy disassembly and reassembly and installation It is possible to provide a method of manufacturing a valve having a handle spindle cap integrated valve stem, which can make maintenance work more convenient and reduce maintenance costs.

1 is a process flow diagram showing a method of manufacturing a valve having a handle spindle cap integrated valve seat according to the present invention;
2 is a side cross-sectional view showing an example of use of a valve having a handle spindle cap integrated valve seat manufactured according to the present invention;
3 is an exploded side cross-sectional view of a valve having a handle spindle cap integrated valve seat manufactured according to the present invention;
4 is a front cross-sectional view of a valve having a handle spindle cap integrated valve seat manufactured according to the present invention;
5 is a partially cutaway perspective view of a valve having a handle spindle cap-integrated valve seat manufactured according to the present invention;
6 is an exploded perspective view of a valve having a handle spindle cap integrated valve seat manufactured according to the present invention;
7 is a side view of the handle spindle cap integrated valve seat according to the present invention;
8 is a side view of a handle spindle cap integrated valve seat according to another embodiment of the present invention;
9 is a side cross-sectional view of the split assembly type presser according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

A method of manufacturing a valve having a handle spindle cap integrated valve seat according to the present invention, as shown in Figs. Providing a cover (S30), providing an integrated valve stem (S40), providing a split assembly type press (S50), combining the integrated valve stem and the disk (S60), and the valve It includes a step of installing the disk to the body (S70), coupling the cover to the valve body (S80), and assembling the split assembly type press on the upper part of the cover (S90).

In the step (S10) of preparing the valve body, as shown in FIGS. 2 to 4, the conduit 110 passing through the upper and lower sides in the transverse direction, and the conduit from the middle of the conduit 110 to the upper side ( The valve body 100 is provided to have an inverted 'T' shape as a whole, including the disk lifting unit 120 protruding upward to communicate with the 110 .

Here, the step (S10) of providing the valve body includes the steps of forming the pipe flanges 111 at both ends of the pipe line 110, and forming the body flange 121 at the outer upper end of the disk lifting unit 120. It is preferable to include a step to make it happen.

1 to 4, in the step of preparing the disk (S20), the disk 200 for opening and closing the conduit 110 is provided by a vertical lifting operation through the inside of the disk lifting unit 120. .

3 to 6 , in the step of providing the cover ( S30 ), the cover 300 covering the upper portion of the valve body 100 and having a portion penetrating up and down from the center is provided.

Here, the step of providing the cover (S30) is a step of forming the cover lower flange 310 coupled to the body flange 121 so that the cover 300 covers the upper portion of the valve body 100 is formed outside the lower end. And, it is preferable to include the step of forming a cover upper flange 320 on the outer side of the upper end.

In the step (S40) of providing the integral valve seat, as shown in FIGS. 1 to 7 , the handle spindle cap is fitted with the handle spindle 10 extending downward from the center of the handle, which is rotated on the ground, and is fitted to the top. A 510 is integrally formed on the upper portion, and a bar 520 with a reduced diameter is provided at the lower portion of the handle spindle cap 510 to provide an integrally formed valve seat 500 integrally formed to extend downward.

Accordingly, in the prior art, the handle spindle cap is manufactured separately from the valve stem and is assembled to the upper part of the valve stem. Unlike the loss of the handle spindle cap, according to the present invention, the handle spindle cap is lost during use after completion of the underground installation by providing the valve stem with the integral valve stem 500 having the handle spindle cap 510 integrally formed thereon. It can be prevented fundamentally, and it is possible to eliminate the need for construction such as re-grounding due to a failure in the connection part of the handle spindle cap or the repair or replacement of the entire valve.

More specifically, as shown in Figures 4 to 6, the lower outer circumferential surface of the bar 520 of the integral valve seat 500 is formed with a male screw so that the female screw shim 400 is engaged with the female screw on the inner circumferential surface. When the integral valve seat 500 is rotated by a handle operation on the ground as possible, the Anna screw shim 400 and the disk 200 are lifted up and down on the male screw of the bar 520 to open and close the conduit 110 .

Here, as shown in FIGS. 6 and 7, the handle spindle cap 510 of the integrated valve stem 500 is preferably formed in the shape of a quadrangular truncated cone having an inclined surface inclined by approximately 2 to 4° on the side cross-section. .

Accordingly, once the handle is inserted from the ground to the upper side of the integrated valve stem 500 so that the handle spindle cap 510 is inserted into the handle spindle 10, the handle spindle 10 is rotated while the handle is rotated. By preventing the handle spindle cap 510 from being inserted into the inner side of the disk 200 to be firmly maintained and not easily removed, the opening and closing operation of the conduit 110 by elevating the disk 200 can be facilitated.

At this time, if the inclination of the outer surface of the handle spindle cap 510 is less than 2°, it can be detached too easily even after the handle spindle 10 is inserted, and if the inclination of the outer surface of the handle spindle cap 510 exceeds 4°, the handle spindle (10) may not be able to fit smoothly.

As an embodiment of the present invention, as shown in FIG. 7 , the outer diameter of the handle spindle cap 510 and the bar 520 is between the handle spindle cap 510 and the bar 520 in the integrated valve seat 500 . It is preferable to form the valve stem flange 530 to have a certain thickness in a more expanded form.

Accordingly, when the integrated valve stem 500 is rotated by the rotation operation of the handle spindle 10 , it is possible to prevent the integrated valve stem 500 from being easily separated and separated downward from the handle spindle 10 .

At this time, the thickness of the valve stem flange 530 is preferably provided to be about 1/3 to 1/4 of the diameter of the bar 520 to ensure structural strength, and the outer diameter of the valve stem flange 530 is the bar ( 520) It is preferable to be provided so as to be 1.30 to 1.50 times the outer diameter.

Accordingly, in the prior art, as the handle spindle cap manufactured separately from the valve stem had to be assembled on the upper part of the valve stem, the valve seat had to be provided so that the outer diameter of the portion corresponding to the lower part of the handle spindle cap was secured more than necessary, but according to the present invention By allowing the lower part of the valve stem flange 530 to extend directly to the bar 520, more than necessary flesh can be omitted, thereby reducing the use of raw materials, reducing the manufacturing cost, and reducing the overall weight, thereby reducing the weight, all-in-one The length of the valve stem 500 can be further reduced, so that the overall size of the valve can be reduced.

As an embodiment of the present invention, the integral valve seat 500 is preferably manufactured by injection molding using a stainless material.

Accordingly, in contrast to the conventional valve seat simply made of cast iron, which is heavy and easily cracked or damaged, according to the integral valve seat 500 according to the present invention, it is lightweight with stainless material, corrosion is minimized, and the handle spindle cap 510 is formed integrally, so that there is no risk of breakage or breakage at all, durability is further improved by the ductility of the stainless material, and mass production is possible by the injection mold molding method, so that the production cost is greatly reduced. can

In the step (S50) of providing the split assembly type press, as shown in FIGS. 3 and 6, it is provided between the handle spindle cap 510 and the cover 300 of the integral valve stem 500, and is integrated. A split assembly type presser 600 is provided in which two parts can be divided and assembled from side to side so as to surround the bar 520 of the valve stem 500 .

Accordingly, after the bar 520 is inserted into the cover 300 , the state coupled to the disk 200 can be supported from the top of the cover 300 by the split assembly type press 600 .

The step (S60) of combining the integral valve seat and the disk includes a step of combining the lower end of the bar 520 and the disk 200 of the integral valve seat 500, as shown in FIGS. 1 to 6 . .

Here, the step (S60) of combining the integrated valve stem and the disk is coupled to the upper portion of the disk 200 between the integrated valve stem 500 and the disk 200 to enable lifting operation together with the disk 200 It is preferable to include the step of coupling the screw shim 400 to the upper portion of the disk 200 by providing the screw shim 400 to be used.

That is, in the step (S60) of combining the integrated valve stem and the disk, the integrated valve stem 500 is rotated together by the rotation operation of the handle spindle 10 and the lower end of the bar 520 is raised and lowered to the disk 200. This is a step to be inserted through the through portion of the cover 300 and coupled to the disk 200 through the Anna screw shim 400 .

In the step (S70) of installing the disk on the valve body, as shown in FIGS. 1 to 6 , the disk 200 in which the integral valve stem 500 is coupled to the disk lifting unit 120 of the valve body 100 . ) to insert and install.

In the step of coupling the cover to the valve body (S80), as shown in FIGS. 1 to 6 , the integrated valve stem 500 to which the disk 200 is coupled to the lower end is formed through the through portion of the cover 300 . It includes the step of inserting the cover 300 into the integral valve seat 500 so as to be penetrated, and coupling the cover 300 to the upper portion of the valve body 100 .

The step (S90) of assembling the split assembly type press on the upper part of the cover is, as shown in FIGS. 1 to 6 , between the lower handle spindle cap 510 of the integral valve seat 500 and the cover 300 . It includes the step of assembling the split assembly type press 600 in the upper part of the cover 300 so that the split assembly type press 600 surrounds the bar 520 of the integral valve seat 500 .

Accordingly, when the handle spindle is inserted from the ground to the valve stem of the valve installed underground and rotated to open and close the valve, the handle spindle cap on the existing valve stem is easily separated from the valve stem due to frequent rotation operations, etc. By preventing easy occurrence or loss of the handle spindle cap in advance, it is possible to eliminate the need for construction such as digging and re-construction or repair or replacement of the entire valve due to the handle spindle cap that is lost during use after completion of the underground installation or breakdown. It has a simpler structure than the existing valve stem, which reduces the weight and makes installation and assembly easier, reduces production costs and construction cost costs, enables miniaturization with a compact configuration as a whole, and facilitates disassembly and reassembly and installation. Accordingly, it is possible to provide a method of manufacturing a valve having a handle spindle cap integrated valve stem that can make maintenance work convenient and reduce maintenance costs.

On the other hand, the divided assembly type press providing step (S50), as shown in FIGS. 3 and 6, forms any one of the divided assembly type press 600 provided symmetrically to the left and right of the integral valve stem 500 The step of providing the first press body 610 formed inside the half of the portion through which the bar 520 passes, and the other one of the split assembly type press 600 provided symmetrically to the left and right, the integral valve seat 500 ) of the step of providing a second presser body 620 formed inside the other half of the portion through which the bar 520 passes, the first presser body 610 and the second presser body 620 at the outer lower end, respectively It is formed and preferably comprising the step of providing a press flange 640 coupled to the cover upper flange 320 of the cover (300).

Here, the step of assembling the split assembly type press on the upper part of the cover (S90) is a presser fastening member 650 made of a bolt and a nut in the fastening holes formed at equal intervals radially on the presser flange 640 and the cover upper flange 320. ) through the bolt and fastening the nut to the opposite side to the direction in which the bolt is inserted so that the first press body 610 and the second press body 620 are respectively fixed to the upper part of the cover 300 in a state in close contact with each other. It is preferable to include the step of

Accordingly, the split assembly type press 600 is provided on the upper portion of the cover 300 to be mutually divided and assembled from left to right instead of as a single body, so that even if the integrated valve seat 500 is applied, the handle spindle cap 510 and The split assembly type press 600 can be easily installed between the cover 300 .

On the other hand, the method of manufacturing a valve having a handle spindle cap integrated valve stem according to the present invention, as shown in Figs. 3 to 6, the coupling step (S80) of the valve body and the cover and the split assembly type presser assembly step Installed on the inside of the split assembly type press 600 between (S90), it is provided so as to be split left and right to surround the bar 520 of the integrated valve stem 500, and prevents separation and departure of the integrated valve stem 500 It is preferable to further include the step of installing a split thrust washer 700 to support it as much as possible.

Accordingly, when the integrated valve stem 500 is rotated together when the handle spindle 10 is rotated on the ground, the bar 520 is supported by the split thrust washer 700 and the integrated valve stem 500 is divided. It is possible to ensure that only the rotational operation is performed stably without lifting and retracting from the assembled press 600 and the cover 300, the static and dynamic loads applied to the integral valve seat 500 are effectively distributed, and the contact wear loss is minimized. The split thrust washer 700 is provided to be divided into two parts inside the split assembly type press 600 so that the split thrust washer 700 can be easily installed.

To this end, as shown in FIGS. 3 and 4, when assembling from the bar 520 of the integrated valve seat 500, the split thrust washer 700 is at a height corresponding to the inner lower end of the split assembly type press 600. The washer engagement groove 521 is recessed inward so that the inner circumferential part of It is preferable that the washer insertion groove 630 is formed so that the outer peripheral portion of the 700 is fitted.

Accordingly, the split thrust washer 700 is not displaced by the washer engagement groove 521 and the washer insertion groove 630 to stably support the integral valve seat 500 .

Meanwhile, as shown in FIGS. 4 and 7 , a bar 520 in the lower portion of the bar 520 of the integrated valve seat 500 in which the washer engagement groove 521 to which the split thrust washer 700 is engaged is formed. ) passes through the center of the cover 300, a bar packing 523 provided to form an O-ring shape with an elastic material such as rubber or plastic wraps around the outer circumferential surface of the bar 520 and covers the cover 300 ) and the bar 520, it is preferable to provide a plurality of up and down so as to block direct contact.

Accordingly, the airtight state in the gap between the integral valve seat 500 and the cover 300 may be firmly maintained by the bar packing 523 .

Meanwhile, as shown in FIGS. 4 to 6 , in the bar 520 of the integral valve seat 500 , the part in which the washer engagement groove 521 to which the split thrust washer 700 is engaged is formed and the bar packing 523 . It is preferable that a bushing 800 made of a synthetic resin material such as PE (polyethylene) is provided to surround the bar 520 between the provided portions.

Accordingly, the bushing 800 is provided between the bar 520 and the cover 300 of the integral valve seat 500 so that direct contact between the integral valve seat 500 and the cover 300 is blocked, so that the integral It is possible to minimize wear loss during rotation of the valve seat 500 .

To this end, as shown in FIGS. 4 to 6 , an inner diameter corresponding to the outer diameter of the bushing 800 is formed in the upper portion of the central portion of the cover 300 through which the bar 520 of the integral valve seat 500 passes. It is preferable that the bushing seating portion 330 is formed so that the bushing 800 through which the bar 520 passes is seated and installed.

In addition, as shown in FIGS. 4 to 6, between the split thrust washer 700 and the bushing 800 in the bar 520 of the integral valve seat 500, the O-ring is made of an elastic material such as rubber or plastic. It is preferable that a plurality of washer packings 900 provided to form a shape surround the outer circumferential surface of the bar 520 and are provided vertically.

Accordingly, in the bar 520 of the integral valve seat 500, the airtight state between the portion surrounded by the bushing 800 and the split thrust washer 700 is firmly maintained by the washer packing 900. and the split thrust washer 700 and the bushing 800 may be elastically supported by the washer packing 900 .

On the other hand, as shown in FIGS. 3 to 5 , between the body flange 121 of the valve body 100 and the cover lower flange 310 of the cover 300 that is in surface contact with and coupled to the body flange 121 , It is preferable that the cover gasket 340 made of an elastic material such as ethylene propylene rubber (EPDM) is provided.

Accordingly, the airtight state in the coupling portion between the valve body 100 and the cover 300 can be firmly maintained by the cover gasket 340 , and as a coupling portion between the valve body 100 and the cover 300 . Even if the water pressure is high, the bonding state is firmly maintained and the parts can be protected from being damaged, and the occurrence and propagation of corrosion at the coupling portion between the valve body 100 and the cover 300 can be blocked. .

On the other hand, as another embodiment of the present invention, as shown in FIG. 8 , the step (S40) of providing the integrated valve stem is in a form in which the handle spindle cap 510 of the integrated valve stem 500 is filled. It may include a step of forming the hollow part 511 which is a hollow space therein so that the inside is provided in an empty form.

Accordingly, the overall weight of the integrated valve stem 500 can be reduced by the hollow portion 511, and the required amount of raw materials can be saved during the molding and manufacturing of the integrated valve stem 500, thereby further reducing the manufacturing cost. can

Here, the thickness from the outer surface of the handle spindle cap 510 forming the handle spindle cap 510 to the inner surface of the hollow portion 511 is preferably 0.20 to 0.35 times the maximum diameter of the bar 520 .

At this time, if the thickness of the flesh from the handle spindle cap 510 to the inside forming the hollow portion 511 is less than 0.20 times the maximum diameter of the bar 520 , the structural strength is somewhat weakened, so that the fitting and rotation of the handle spindle 10 . When torsional deformation or breakage may occur easily, when it exceeds 0.35 times the maximum diameter of the bar 520, the structural strength is reinforced, but the consumption of raw materials increases, thereby reducing the effect of reducing the manufacturing cost.

Accordingly, by designing and shaping the flesh thickness from the handle spindle cap 510 to the inside forming the hollow part 511 to be optimized, the manufacturing cost of the integral valve seat 500 is reduced while the structural strength is sufficiently ensured can make it happen

On the other hand, as another embodiment of the present invention, as shown in FIG. 9 , the split assembly type press providing step (S50) is a valve seat flange 530 of the integral valve seat 500 in the split assembly type press 600 . ) assembling the valve seat buffer part 660 so that the upper part facing it is replaced by the valve seat buffer part 660 separately made of PAN (Poly-Acrylonitrile)-based carbon nanofiber material, which is a high-strength and highly elastic material. Steps may be included.

Accordingly, even if the integral valve seat 500 is rotated in an excessively lowered state by any chance, the wear damage or breakage of the split assembly type press 600 by contact with the valve seat flange 530 is prevented by the valve seat buffer unit 660 . can be prevented as much as possible, and even if the valve seat buffer 660 is damaged, it can be easily replaced with a new one so that the valve can be operated in a repaired state.

Although the technical aspects have been described in the accompanying drawings and described above, the technical idea of the present invention is for the description, and does not limit the invention, and those of ordinary skill in the art It will be understood that various modifications and changes of the present invention can be made without departing from the technical scope of the present invention described in the following claims.

100: valve body 110: pipeline
111: pipe flange 120: disk lifting part
121: body flange 200: disk
300: cover 310: cover lower flange
320: cover upper flange 330: bushing seating part
340: cover gasket 400: annasa shim
500: integral valve seat 510: handle spindle cap
511: hollow part 520: bar
521: washer engagement groove 523: bar packing
530: valve seat flange 600: split assembly type press
610: first presser body 620: second presser body
630: washer insert groove 640: press flange
650: presser fastening member 700: split thrust washer
800: bushing 900: washer packing

Claims (3)

Including a conduit 110 penetrating in the transverse direction on the upper and lower sides of the conduit 110 and a disk lifting unit 120 protruding upward to communicate with the conduit 110 upward from the middle portion of the conduit 110, as a whole, providing the valve body 100 to have an inverted 'T' shape (S10);
providing a disk 200 that opens and closes the conduit 110 by a vertical lifting operation through the inside of the disk lifting unit 120 (S20);
providing a cover 300 covering the upper portion of the valve body 100 and having a portion penetrating vertically from the center (S30);
A handle spindle cap 510 into which the handle spindle 10, which is rotated on the ground, is fitted upward, is integrally formed on the upper portion, and a bar 520 with a reduced diameter at the lower portion of the handle spindle cap 510 moves downward. providing an integral valve seat 500 integrally formed to extend (S40);
It is provided between the handle spindle cap 510 of the integral valve seat 500 and the cover 300, and is provided so as to be able to divide and assemble left and right to surround the bar 520 of the integral valve seat 500 providing a split assembly type press 600 (S50);
coupling the lower end of the bar 520 and the disk 200 of the integral valve seat 500 (S60);
Installing the disk 200 to the disk lifting unit 120 of the valve body 100 (S70);
The cover 300 is inserted into the integral valve stem 500 so that the integrated valve stem 500 coupled to the lower end of the disk 200 is penetrated through the through portion of the cover 300, and the valve body (S80) coupling the cover 300 to the upper portion of (100); and
The split assembly type presser 600 surrounds the bar 520 of the integral valve seat 500 between the lower part of the handle spindle cap 510 of the integral valve seat 500 and the cover 300 . Assembling the assembled press 600 on the top of the cover 300 (S90);
including,
In the split assembly type press providing step (S50), half of the part through which the bar 520 of the integral valve seat 500 passes is formed in any one of the split assembly type press 600 provided symmetrically to the left and right. The step of providing the first press body 610 formed on the inside, and forming the other of the split assembly type press 600 provided symmetrically left and right, the bar 520 of the integral valve seat 500 is penetrated The other half of the portion is formed on the outer lower end of each of the steps of providing a second press body 620 formed on the inside, the first press body 610 and the second press body 620, respectively, to the cover (300) Including the step of providing a press flange 640 to be coupled,
The bar 520 of the integral valve stand 500 is installed inside the split assembly type press 600 between the coupling step (S80) of the valve body and the cover and the split assembly type press assembly step (S90). Further comprising the step of installing a split thrust washer 700 which is provided to be split left and right to surround the integral valve seat 500 and supports to prevent separation and departure,
The handle spindle cap 510 of the integral valve seat 500 is formed in the shape of a quadrangular truncated pyramid having an inclined surface inclined at 2 to 4 ° on the side cross-section,
In the integral valve seat 500 , between the handle spindle cap 510 and the bar 520 , a valve seat flange 530 is larger than the outer diameters of the handle spindle cap 510 and the bar 520 . is formed to have a certain thickness,
The thickness of the valve stem flange 530 is provided to be 1/3 to 1/4 of the diameter of the bar 520 , and the outer diameter of the valve stem flange 530 is 1.30 to 1.50 times the outer diameter of the bar 520 . prepared to be
The integral valve seat 500 is made of stainless steel and manufactured by injection molding,
In the bar 520 of the integral valve seat 500 , the bar 520 among the lower portions of the portion in which the washer engagement groove 521 to which the split thrust washer 700 engages is formed is the central portion of the cover 300 . A bar packing 523 provided in the form of an O-ring made of an elastic material at a portion penetrating through the bar wraps the outer circumferential surface of the bar 520 and vertically so as to block direct contact between the cover 300 and the bar 520 . Many are available,
In the bar 520 of the integral valve seat 500, a portion in which the washer engagement groove 521 to which the split thrust washer 700 is engaged is formed and a portion in which the bar packing 523 is provided. A bushing 800 made of a synthetic resin material such as is provided to surround the bar 520,
A bushing seating portion 330 having an inner diameter corresponding to the outer diameter of the bushing 800 is formed in the upper portion of the central portion of the cover 300 through which the bar 520 of the integral valve seat 500 passes. The bushing 800 through which the bar 520 passes is seated and installed,
Between the split thrust washer 700 and the bushing 800 in the bar 520 of the integral valve seat 500, a washer packing 900 made of an elastic material to form an O-ring is the bar 520. ) surrounding the outer circumferential surface and provided with a number of
A cover gasket made of an elastic material such as ethylene propylene rubber between the body flange 121 of the valve body 100 and the cover lower flange 310 of the cover 300 that is in surface contact with the body flange 121 and is coupled. (340) A method of manufacturing a valve having a handle spindle cap integrated valve stem, characterized in that it is provided.

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