KR200338623Y1 - Double side segment plug type metal seat ball valve - Google Patents

Abstract

In the double side segment plug type metal seat ball valve according to the present invention, a pair of main body seat parts of which a segment plug type valve body for opening and closing a conduit to a valve body are supported by a rotation support means and installed at both ends of a passage of the valve body. It is installed to be opened and closed automatically and manually to rotate in both directions to be alternatively pressed, the segment plug-type valve body is formed in a form in which the disk and the shaft fastening portion integrally formed by the segment plate, the rotation support means is the valve body The shaft is formed to be coupled to the shaft support portion formed on both sides of the main wall so as to prevent rotation and leakage. And the metal seat ring is coupled to the inner diameter portion of the slide coupling portion formed on one side of the valve body inward and outward, O-ring is in the annular hydraulic action groove formed by the slide coupling portion and the metal seat ring of the valve body. It is inserted into the left and right flow, the neck portion of the valve body is formed with a hydraulic pressure passage for guiding the hydraulic pressure of the inner portion of the valve body to act on the hydraulic pressure groove. And, the elastic seat ring is made of rubber material is coupled to the elastic seat ring engaging portion formed inside the neck portion of the valve body. The present invention has the advantage that the valve body is formed of a segment plug type, the configuration is simple, the material used is reduced, and the opening and closing maneuverability of the valve is smooth, and the valve body can be easily fastened to the valve body by a bolt fastening structure. When the valve body is closed, the crimping portion of the metal seating ring is strongly pressed by the metal-to-metal pressing force primarily on the seat of the valve body, so that the water leakage is within a predetermined allowable value, thereby preventing the required water leakage performance of the product. It is advantageous to provide a bidirectional compound sealing device having a performance far superior to the required reference performance since it is maintained for a long time, and furthermore, the elastic seating is completely pressed against the seat of the valve body to completely block leakage.

Description

DOUBLE SIDE SEGMENT PLUG TYPE METAL SEAT BALL VALVE}

The present invention is a double side segment plug type metal seat ball valve, in particular, the segment plug type valve body for opening and closing the conduit to the valve body is supported by the rotation support means so as to be rotatable in both directions and is installed at both ends of the passage of the valve body. The pair of body seats are alternatively compressed and installed to be opened and closed automatically and manually to block leakage, thereby rotating the segment plug type valve body in accordance with the direction of water pressure flowing in the pipeline, thereby allowing the left or right side of the passage of the valve body to be It can be closed, and the valve body is formed into a segment plug type, which not only simplifies the configuration, but also facilitates opening and closing of the valve, and allows the valve body to be easily fastened to the valve body by a bolted structure, such as water flowing in a pipeline. No matter where the pressure of the fluid Rotating the plug-shaped valve body segment in accordance with the direction in which the body of the pressure acting to close to parts of the left portion or the right side of the passage of the valve body in the alternative on the double sheet metal segment, the plug type ball valve to prevent leakage.

In general, a butterfly valve and a ball valve are rotatably coupled to a valve body such as a valve body and a valve body that open and close a pipeline in the valve body, and a rubber seat ring in which the seat surface of the valve body is compressed to the inner circumferential surface of the valve body. This is a fixed configuration.

Such a conventional valve is difficult to expect a perfect leak blocking by sealing only the rubber seat, in particular, the rubber seat is abrasion due to friction over time and water tight function is rapidly reduced. Therefore, the repair work such as repair or replacement of the sheet is frequent and there is an uneconomical problem that excessive management costs are expended accordingly.

In order to solve such a problem, Korean Utility Model Registration No. 20-0254812 discloses that a valve body assembled to both rotation shafts inside a valve body is rotated by a driving device, and rubber is formed along an outer circumference of the valve body. A butterfly valve in which a seat is fixed to the main body seat inside the valve body, the butterfly valve being assembled to the valve body at the rear of the main body seat, and having a double seat for the butterfly valve equipped with a metal auxiliary seat having a close contact plate having elastic force on the outer periphery. Sealing devices are known.

Such a conventional double sealing device is provided with a metal sheet auxiliary to assist the leakage blocking force by the rubber sheet, there is a complicated configuration, the metal sheet is installed in the rear of the valve body to provide a close contact of the metal sheet Since it is fixed at a predetermined position so as to contact the outer peripheral surface end of the valve body, there is a problem that it is difficult to maintain the leak-tight force by the metal sheet to be stable, assembly assembly and maintenance is difficult.

On the other hand, in fixing the seat ring in the inside of the valve body in the prior art, a structure for fastening the seat ring using a fastening ring and a plurality of bolts is used, such a fastening structure is, for example, Korea Utility Model Publication No. 20 As described in the butterfly valve double seat ring watertight device known from -0252351, the seat ring is inserted into the fastening groove of the seat ring mounting portion formed on the inner circumferential surface of the valve body, and the annular fastening ring is moved outward of the seat ring. It has a configuration in which a plurality of bolts are interposed therebetween.

However, the structure of fastening the seat ring by using the fastening ring and bolt is very difficult to fasten, which requires a lot of assembly time, which leads to a decrease in productivity, and a large amount of parts required to increase the cost. There was a disadvantage in terms of cost and cost.

In addition, the conventional sealing device known in the Republic of Korea Utility Model Registration No. 20-0254812, Republic of Korea Utility Model Registration No. 20-0252351 as described above relates to the butterfly valve, which is not suitable for use in ball valves There was this.

In addition, the leak blocking device of the ball valve developed by the applicant and filed in the patent application 2001-0041101, the cup-shaped valve chamber of the valve body is provided with a circular opening at the upper end, the connecting portion extends along the cylindrical region on both sides of the valve chamber It is formed, and the flange is formed in the edge part of both connection parts. In addition, the ball inserted into the valve body is formed in the orthogonal direction and the distribution portion and the blocking portion, the shaft is formed on the upper and lower ends of the ball. In addition, the lower shaft of the ball is coupled to the shaft hole of the valve body via the bush, the cover is fixed to the opening of the valve body via the fixing ring, the upper shaft of the ball is coupled to the shaft hole of the cover via the bush. In addition, a seat assembly is inserted into both connection portions of the valve chamber so as to be linearly moved left and right at predetermined intervals and is in close contact with the seat of the ball so as to block leakage, and the rubber seat is pressed against the seat of the ball. And elastic means for elastically supporting the seat assembly, wherein the seat assembly is in close contact with the seat of the ball in a configuration in which a rubber sheet is inserted between one end of a metal inner seat ring and a metal outer ring. It is configured to improve blocking.

As described above, the ball valve is known in the patent application of the ball is formed in the orthogonal direction of the distribution portion and the blocking portion, and the blocking portion and the distribution portion for actually blocking the pipe is formed in the same form, the ball and the valve body leaks Compared with the need for blocking, the size was larger than necessary, and the configuration was complicated.

The present invention was devised to solve the conventional problems and defects as described above, and the segment plug type valve body for opening and closing the conduit to the valve body is supported by the rotation support means so as to rotate in both directions, so that both sides of the passages of the valve body are supported. The pair of body seats installed at the end are alternatively compressed and installed to be opened and closed automatically and manually to block leakage, thereby rotating the segment plug type valve body in the direction of the water pressure flowing in the pipeline to The left or right side can be closed, and the valve body is formed in the segment plug shape, which not only simplifies the configuration, but also facilitates the opening and closing maneuverability of the valve, and makes it easy to fasten the valve body to the valve body by bolting structure, The pressure of the fluid, such as running water, can be Even if it is to provide a double-segment plug-type metal seat ball valve to rotate the segment plug-type valve body in accordance with the direction of the pressure of the fluid to close the left or right side of the passage of the valve body to block the leakage will be.

1 to 7 are views of the segment plug-type ball valve according to the present invention,

1 is a partially cutaway side view of a double side segment pluggable metal seat ball valve;

Figure 2 is a partially cutaway side view showing another form of a double side segment plug type metal seat ball valve.

3 is a partially cutaway front view of a double side segment pluggable metal seat ball valve;

4 and 5 are enlarged cross-sectional view of part “A” of FIG. 1 showing the enlarged configuration and operation of the leakage blocking unit.

6 is an explanatory view of a leak blocking action.

7 is a perspective view of a valve body;

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

100: valve body

101: slide coupling

101a: jamming jaw

102: neck

103: elastic seating coupling portion

110: shaft support

120: sleeve

130: packing

140: Packing Grand

141: inserting unit

142: fixed part

143: Bolt

200: segment plug type valve body

200: valve body

201: disk

202: sheet

204: segment plate

210: shaft fastening

211: fastener

212: home

213: shaft insertion groove

220: Volts

230: power transmission pin

300: rotation support means

310: axis

311: screw groove

312: home

400: body sheet portion

410: Metal Seat Ring

410a: seat portion

411,421: Tip

440,441: O-ring

412: step

413: recessed part

420: annular fastening ring

430: Elastic Seat Ring

431 fixing part

432: crimping portion

450: hydraulically actuated groove

451: hydraulic pressure passage

500: Bolt

In order to achieve the above object, the double side segment plug type metal seat ball valve according to the present invention is provided with a segment plug type valve body for opening and closing a conduit in a valve body supported by a rotation support means and installed at both ends of passages of the valve body. It is installed to be opened and closed automatically and manually so as to alternately squeeze by being rotated in both directions to block the pair of body seat portion, the segment plug type valve body is formed in the form of the disc and the shaft coupling portion integrally formed by the segment plate It is formed, the rotation support means is configured by the shaft is coupled to the shaft support formed on both sides of the main wall of the valve body so as to prevent rotation and leakage.

The shaft coupling portion of the segment plug valve body and the shaft end portion are connected to each other via a plurality of power transmission pins, and bolts inserted into the coupling holes formed in the shaft coupling portion of the valve body are formed at the inner end of the shaft. It is fastened to one screw groove, grooves are formed in the shaft fastening portion and the end of the shaft, respectively, and both ends of each of the power transmission pins are inserted into the groove, respectively, the shaft insertion groove is formed at the end of the shaft fastening portion of the valve body An end portion of the shaft is inserted into the shaft insertion groove.

In addition, by inserting the packing for the sleeve and the sealing as a lubricating member inside the shaft support portion of the valve body, the coupling gland provided with the inserting portion and the fixing portion is coupled to the inserting portion to the outside of the packing inside the shaft support portion And the fixing part is bolted to the outer end of the shaft support part.

In addition, the metal seat ring is coupled to the inner diameter portion of the slide coupling portion formed at one side of the valve body inward and outward, and a portion of the inner diameter portion of the slide coupling portion of the valve body and the stepped portion of the metal seat ring and the slide. The O-ring is inserted into the annular hydraulically acting groove formed by the engaging jaw of the coupling part so as to be movable from side to side, and the internal pressure of the valve body is formed by contacting the slide coupling part and the metal seat ring at the neck of the valve body. A hydraulic pressure passage is formed to guide a portion of the gap portion close to the O-ring to act on the hydraulic pressure acting groove, so that water leakage is blocked by bidirectional hydraulic pressure when the valve body is closed, and the front seat portion of the metal seat ring is connected to the valve. It is comprised so that it may contact with the sheet | seat of a sieve by predetermined | prescribed pressing force.

In addition, an elastic seat ring formed to have a fixed portion and a crimping portion made of rubber material is coupled to the elastic seat ring coupling portion formed inside the neck portion of the valve body, and the annular fastening ring is connected to the elastic seat ring coupling portion by a plurality of bolts. The fastening portion is fixed by the fastening, and the crimping portion is sandwiched between the metal seat ring and the distal end portion of the fastening ring, and is configured to be crimped secondary, complex, and auxiliary to the seat of the valve body.

Hereinafter, with reference to the accompanying drawings of the present invention in detail as follows.

1 to 7 are views of the segment plug-type ball valve according to the present invention, Figure 1 is a partial cutaway side view of the double side segment plug-type metal seat ball valve, Figure 3 is a double side segment plug-type metal seat A partially cutaway front view of the ball valve is shown, respectively, in FIGS. 4 and 5, an enlarged cross-sectional view of the "A" part of FIG. 7 is a perspective view of the valve body.

As shown in the drawing, the double side segment plug type metal seat ball valve according to the present invention has a segment plug type valve body 200 for opening and closing a conduit to the valve body 100 by being supported by the rotation support means 300. It is installed to be opened and closed automatically and manually by a pair of main body seat portion 400 which is installed in both ends of the passage of the valve body 100 in both directions to be alternatively compressed to block the water leakage, the segment plug type valve The sieve 200 is formed in a shape in which the disk 201 and the shaft fastening portion 210 are integrally formed by the segment plate 204, and the rotation supporting means 300 is formed at both sides of the circumferential wall of the valve body 100. The shaft 310 is coupled to the formed shaft support 110 to prevent rotation and leakage.

The segment pluggable valve body 200 is formed in a shape in which the disk 201 and the shaft fastening portion 210 are integrally connected to the segment plate 204.

The rotation support means 300 is coupled to the shaft support portion 110 formed on both sides of the main wall of the valve body 100 to prevent rotation and leakage, the segment plug type valve body 200 The shaft fastening portion 210 and the end of the shaft 310 is connected via a plurality of power transmission pins 230 and the fastening hole 211 formed in the shaft fastening portion 210 of the valve body 200 Bolt 220 is inserted into the screw groove 311 formed in the inner end of the shaft 310 is fastened to the shaft coupling portion 210 and the shaft 310 of the valve body 200 is firmly coupled to the valve The driving force for rotating the sieve 200 is transmitted reliably.

In addition, grooves 212 and 312 are formed at end portions of the shaft fastening portion 210 and the shaft 310, respectively, and both ends of the power transmission pins 230 are grooves 212 and 312. It is inserted into and coupled to, the shaft insertion groove 213 is formed at the end of the shaft fastening portion 210 of the valve body 200 in the form that the end of the shaft 310 is inserted into the shaft insertion groove 213 By being coupled, the shaft fastening portion 210 and the shaft 310 are more stably coupled to each other.

Four power transmission pins 230 are shown in the figure, but may be installed in two, four, six, eight, etc. depending on the size of the valve.

In addition, a packing gland 140 including a sleeve 120 and a seal 130 for sealing as an lubricating member, and an inserting part 141 and a fixing part 142 are inserted into the shaft support part 110 of the valve body 100. ) Is inserted so that its insertion portion 141 is inserted into the outer side of the packing 130 inside the shaft support portion 110 to fasten its fixing portion 142 to the outer end of the shaft support portion 110 with a bolt 143. do.

In addition, the metal seat ring 410 is coupled to the inner diameter portion of the slide coupling portion 101 formed on one side of the valve body 100 to be able to flow inward and outward, and the slide coupling portion of the valve body 100 ( O-ring 440 in an annular hydraulic acting groove 450 formed by a part of the inner diameter of the 101, the stepped portion 412 of the metal seat ring 410 and the locking step 101a of the slide engaging portion 101. ) Is inserted into the left and right flows, the internal pressure of the valve body 100 is formed in the neck portion 102 of the valve body 100 is in contact with the slide coupling portion 101 and the metal seat ring 410 A hydraulic pressure passage 451 is formed to guide the portion of the gap portion adjacent to the O-ring 440 to act on the hydraulic pressure groove 450 so that water leaks by bidirectional hydraulic pressure when the valve body 200 is closed. Is blocked, and the tip portion (tip crimping portion) of the metal seat ring 410 411 Teubu (410a), the valve body 200, a predetermined pressing force to the sheet 202, that is so that the leakage is constituted by the contact pressure set to be not more than the reference limit values.

In addition, the elastic seat ring coupling portion 103 formed inside the neck portion 102 of the valve body 100 has an elastic seat ring 430 formed to have the fixing portion 431 and the pressing portion 432 made of rubber material. And the fixing part 431 is fixed by fastening the annular fastening ring 420 to the elastic seating coupling part 103 with a plurality of bolts 500. The seat ring 410 and the front end portions 411 and 421 of the fastening ring 420 are sandwiched between the seat 202 of the valve body 200 is configured to be crimped secondary, complex and auxiliary.

The metal seat ring 410 has a locking jaw 415 formed at the lower end of the front end 411, and the elastic seat ring 430 has a locking jaw 434 formed at one side of the crimping portion 432 when the valve is closed. The locking jaw 415 of the metal seat ring 410 pushes the locking jaw 434 of the elastic seat ring 430 so that the crimping portion 432 of the elastic seat ring 430 is the seat 202 of the valve body 200. It is to be pressed closely to

In addition, a locking jaw 422 is formed at one side of the front end portion 421 of the fastening ring 420, and a locking groove 433 is formed at one side of the middle portion of the elastic seat ring 430 to catch the elastic seat ring 430. The groove 433 is caught by the locking jaw 422 of the fastening ring 420 so that the elastic seat ring 430 is fastened more firmly.

In addition, an O-ring insertion groove 413 is formed inside the stepped portion 412 of the metal seat ring 410, and the slide coupling portion 101 and the metal seat ring 410 are formed in the O-ring insertion groove 413. An O-ring 441 is inserted to block water pressure acting between the contact gaps from entering the inner side of the valve body 100.

At this time, the hydraulic pressure passage 451 has an inlet end is formed in the neck portion 102 of the valve body 100, the outlet end of the gap between the slide engaging portion 101 and the metal seat ring 410 It is formed in the middle portion located between the O-rings (440, 441).

In addition, at the tip of the inner diameter portion of the metal seat ring 410, a concave portion 414 is formed such that the tip compression portion 411 elastically contacts the seat 202 of the segment plug type valve body 200. It is composed.

1 and 2 are partial cutaway side views showing the valve body of the double side segment plug-type metal seat ball valve differently applied to each other. As shown in FIG. 1, the valve body 100 has a left and a right member 100 ′. , Formed by two pieces of (100 ") and assembled by fastening the flanges 105 and 106 with bolts 108, or left and right members 100 ', 100" and intermediate members as shown in FIG. Forming three pieces of 100 " 'to fasten the flanges 105, 107; 107, 106 to the bolts 108 to assemble the bolts 108 is preferable to improve assembly productivity.

As described above, the double-sided segment plug-type metal seat ball valve according to the present invention is installed in, for example, a water supply line, and in a direction in which a pressure of a fluid such as water flowing in the pipeline is applied while a fluid such as water flows in the pipeline. Accordingly, the segment plug-type valve body may be rotated to selectively close the left side or the right side of the passage of the valve body to block the leak, and the valve body 200 may be closed as shown in FIGS. 3 and 4, and FIG. 4. When the hydraulic pressure is applied from the right side to the left side on the basis of, ie, when the hydraulic pressure is applied from the right high pressure side to the left low pressure side, the metal sheeting ring 410 is pushed to the left side based on FIG. The tip crimping portion 411 of 410 is crimped to the seat 202 of the valve body 200 to block the leakage of the conduit so as to be within the standard allowable value (the prescribed value).

In this manner, the front end pressing portion 411 of the metal seat ring 410 of both main body seat portions 400 of the valve body 100 is primarily pressed onto the seat 202 of the valve body 200 and leaks. The crimping portion 432 of the elastic seat ring 430 coupled between the metal seat ring 410 and the front end portions 411 and 421 of the fastening ring 420 is blocked by the valve body 200. Secondary compression to the sheet 202 of the block so that the leak is more completely blocked than the standard allowance.

On the other hand, when the hydraulic pressure is applied from the left side of the valve body 100 to the right side as shown in Figure 4, depending on the valve installed state or the situation in which the hydraulic pressure acts on the pipeline, that is, the left side is the high pressure side and the right side is the low pressure side The hydraulic pressure acts through the hydraulic pressure passage 451 formed in the valve body 100, and acts on the hydraulic pressure groove 450 through a gap between the slide coupling portion 101 and the contact portion of the metal seat ring 410. In this case, the O-ring 440 inserted into the hydraulic acting groove 450 moves to the right to seal the right side of the hydraulic acting groove 450 and the hydraulic pressure pushes the metal sheeting ring 410 to the left. The tip crimping portion 411 of 410 is pressed against the seat 202 of the valve body 200, and is coupled between the metal seat ring 410 and the front end portions 411 and 421 of the fastening ring 420. The pressing portion 432 of the elastic seat ring 430 is pressed against the seat 202 of the valve body 200 and The derivative is completely blocked from leaking to leakage blocking effect.

When the metal seat ring 410 and the elastic seat ring 430 are compressed to the seat 202 of the valve body 200 as described above, the pressure on the cross section A of the metal seat ring 410 side as shown in FIG. Since the pressure) is larger than the cross-sectional area B on the seat 202 side of the valve body 200, a pressing force corresponding to the difference in the cross-sectional area is applied to the seat 202, which is compressed by a piston action, thereby completely preventing leakage.

As described above, the double side segment plug-type metal seat ball valve of the present invention has a front end crimping part of the metal seat ring 410 of the body seat part 400 provided in the valve body 100 when the valve body 200 is closed. 411 is strongly pressed against the seat 202 of the valve body 200 by the pressing force of metal to metal, and the leak is within a predetermined allowable value, thereby maintaining the required leak preventing performance of the product, and furthermore, the elastic seat ring Since the crimping portion 432 of 430 is secondarily pressed onto the seat 202 of the valve body 200 to completely block the leakage, the crimping portion 432 has a performance far superior to the required reference performance.

In addition, when the tip crimping portion 411 of the metal seat ring 410 of the body seat portion 400 provided in the valve body 100 comes into contact with the seat 202 of the segment plug type valve body 200. Since it is elastically crimped by the concave inlet 414 at the tip of the neck, the leakage blocking force is improved, and the service life is also extended.

And even if it uses for a long time after a valve is installed in a pipeline, even if the crimping force of the front crimping part 411 of the metal seat ring 410 with respect to the seat 202 of the valve body 200 becomes weak, the elastic seat ring 430 The compressive force acts as an auxiliary, so that the leakage blocking force better than the prescribed value is maintained for a long time.

Furthermore, the double side segment plug type metal seat ball valve according to the present invention has a segment plug type valve body 200 connected to the rotation support means 300 so as to open and close the pipeline in both directions to the valve body 100 that is connected to the pipeline. It is supported and rotated in both directions, it is alternatively compressed to a pair of main body seat portion 400 is installed in the both ends of the passage of the valve body 100 is installed to be opened and closed automatically and manually to block the water flow in the pipeline The segment plug-type valve body 200 may be rotated according to a direction in which a pressure of a fluid such as water acts to selectively close the left side or the right side of the passage of the valve body 100 to block leakage.

As described above, the double side segment plug-type metal seat ball valve has the advantage that the valve body is simplified to a segment plug type, thereby reducing the use of materials and smoothly opening and closing the valve, and bolting the valve body to the valve body. There is an advantage that can be easily fastened to the structure.

In addition, the metal seat ring is coupled to the inner diameter portion of the slide coupling portion formed in the valve body inward and outward, and is connected to the inner diameter portion of the slide coupling portion of the valve body and the stepped portion of the metal seat ring and the locking jaw of the slide coupling portion. The O-ring is inserted into the annular hydraulic acting groove formed to be movable from side to side, and the neck portion of the valve body guides the hydraulic pressure from the inner side to the outer side to the portion close to the O-ring to act on the hydraulic acting groove. A passage is formed so that leakage is blocked by bidirectional hydraulic pressure when the valve body is closed, and the tip portion of the metal seat ring is brought into contact with the seat of the valve body at a predetermined pressure such that the leakage amount is equal to or less than a standard allowable value. And the elastic seating is configured to assist the pressing of the seat of the valve body Thus, when the valve body is closed, the crimping portion of the metal seating ring is strongly compressed by the metal-to-metal pressing force primarily on the seat of the valve body, so that the water leakage is within a predetermined allowable value, so that the required leakage preventing performance of the product is maintained for a long time. Furthermore, since the elastic seating is secondarily pressed onto the seat of the valve body to completely block leakage, there is an advantage of providing a bidirectional compound sealing device having a performance far superior to the required reference performance.

In addition, the tip crimping portion of the metal seat ring is elastically crimped by the concave portion at the tip of the inner diameter part when the tip crimping portion of the metal seat ring is in contact with the seat of the segment plug-type valve element, thereby improving the leak-tightness and extending the service life.

In addition, even when the valve is used in the pipeline for a long time, even if the pressing force of the metal seat ring pressing portion against the seat surface of the valve body becomes weak, the pressing force of the elastic seat ring acts as an auxiliary function, and the leakage blocking force better than the prescribed value is maintained for a long time. There is an advantage.

In particular, the double-sided segment plug-type metal seat ball valve according to the present invention is a segment plug-type valve body is supported by the rotation support means to open and close the pipeline in both directions to the valve body piped in the pipeline to rotate in both directions of the valve body Segment plug-type valve according to the direction of the pressure of fluid such as water flowing in the pipeline because it is installed to be opened and closed automatically and manually to squeeze the pair of body seats installed at both ends of the passage to block the leakage. Rotating the sieve has the advantage of selectively closing the left side or the right side of the passage of the valve body to block leakage.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art can understand that the present invention can be variously modified and changed within the scope of the spirit and scope of the present invention described in the claims below. There will be.

Claims (11)

A pair of main body seat portions 400, which are segment plug-type valve bodies 200 for opening and closing the conduits to the valve body 100, are supported by the rotation support means 300 and are installed at both ends of the passage of the valve body 100. 2) is rotated in both directions and is alternatively compressed and installed to be opened and closed automatically and manually to block leakage. The segment pluggable valve body 200 includes a disc 201 and a shaft coupling part 210 having a segment plate ( 204 formed integrally with each other, and the rotation support means 300 is coupled to the shaft support part 110 formed at both sides of the main wall of the valve body 100 to prevent rotation and leakage. Double side segment plug type metal seat ball valve, characterized in that the configuration. According to claim 1, The shaft coupling portion 210 and the end of the shaft 310 of the segment plug-type valve body 200 is connected via a plurality of power transmission pins 230 and the valve body 200 Double side segment, characterized in that the bolt 220 is inserted into the fastening hole 211 formed in the shaft fastening portion 210 of the) is fastened to the screw groove 311 formed in the inner end of the shaft 310 Pluggable metal seat ball valve. The method of claim 1, wherein the pair of main body seat portion 400 is selectively compressed to the seat 202 of the disk 201 provided on both sides of the segment plug-type valve body 200 to block the leakage Double side segment plug-type metal seat ball valve, characterized in that the metal seat ring 410 and the elastic seat ring 430 is installed at both ends of the passage of the valve body 100. According to claim 2, wherein the shaft fastening portion 210 and the end of the shaft 310, the grooves 212, 312 are formed respectively, and both ends of each of the power transmission pins 230 are grooves 212, Inserted into the 312, the shaft insertion groove 213 is formed at the end of the shaft fastening portion 210 of the valve body 200 and the end of the shaft 310 is inserted into the shaft insertion groove 213 Double side segment plug type metal seat ball valve, characterized in that the configuration. The method of claim 2, wherein the sleeve 120 and the seal 130 for sealing as a lubricating member is inserted into the shaft support 110 of the valve body 100, the inserting portion 141 and the fixing portion 142 Is coupled to the packing gland 140, the insertion portion 141 of the inside of the shaft support 110 is inserted into the outside of the packing 130, the fixing portion 142 of the shaft support 110 Double side segment plug type metal seat ball valve characterized in that the outer end is fastened to the bolt (143). According to claim 3, The metal seat ring 410 is coupled to the inner diameter portion of the slide engaging portion 101 formed on one side of the valve body 100 inward and outward, and the valve body 100 of the An annular hydraulic action groove 450 formed by a portion of the inner diameter portion of the slide coupling portion 101, the stepped portion 412 of the metal seat ring 410, and the locking step 101a of the slide coupling portion 101. The O-ring 440 is inserted into the left and right flows, the neck portion 102 of the valve body 100 is the inner pressure of the valve body 100 is the slide coupling portion 101 and the metal seat ring 410 When the valve body 200 is closed, a hydraulic pressure passage 451 is formed to guide the portion of the gap formed in contact with the O-ring 440 to act on the hydraulic pressure groove 450. Leakage is blocked by water pressure, and the tip portion (tip compression) of the metal seat ring 410 And a seat portion 410a of the part 411 is configured to contact the seat 202 of the valve body 200 with a predetermined pressing force. The valve of claim 6, wherein the metal seat ring 410 is a metal seat ring formed of a metal material, and the elastic seat ring 430 is formed of a rubber material to have a fixing part 431 and a crimping part 432. Is coupled to the elastic seating coupling portion 103 formed inside the neck portion 102 of the main body 100, the annular fastening ring 420 to the elastic seating coupling portion 103 with a plurality of bolts (500) The fastening part 431 is fixed by the fastening, and the crimping part 432 is sandwiched between the metal seat ring 410 and the front end parts 411 and 421 of the fastening ring 420 to fasten the valve body. Double side segment plug type metal seat ball valve, characterized in that it is configured to be pressed secondary, complex, and auxiliary to the seat 202 of (200). 7. The recess 414 according to claim 6, wherein a tip crimp 411 of the inner diameter portion of the metal seat ring 410 elastically contacts the seat 202 of the segment plug type valve body 200. Double side segment plug-type metal seat ball valve, characterized in that is formed. The method of claim 6 or 7, wherein the O-ring insertion groove 413 is formed inside the step portion 412 of the metal seat ring 410, the O-ring insertion groove 413, the slide coupling portion 101 And an O-ring 441 is inserted to block the water pressure acting between the contact portion gap of the metal seat ring 410 from being introduced into the inner side of the valve body 100. The method of claim 7, wherein the metal seat ring 410 has a locking jaw 415 is formed at the lower end of the tip portion 411, the elastic seat ring 430 is a locking jaw 434 on one side of the crimping portion 432 When the valve is closed, the locking jaw 415 of the metal seat ring 410 pushes the locking jaw 434 of the elastic seat ring 430 so that the crimping portion 432 of the elastic seat ring 430 is the valve body 200. Is tightly pressed against the seat 202 of the coupling ring, and a locking jaw 422 is formed at one side of the front end portion 421 of the fastening ring 420, and a locking groove 433 is formed at one side of the middle of the elastic seat ring 430. Double side segment plug-type metal seat ball valve is characterized in that the fastening groove 433 of the elastic seat ring 430 is configured to be fastened to the engaging jaw 422 of the fastening ring 420. 10. The method of claim 9, wherein the hydraulic pressure passage 451 is the inlet end is formed in the neck portion 102 of the valve body 100, the discharge end is the slide engaging portion 101 and the metal seat ring 410 Double side segment plug-type metal seat ball valve, characterized in that formed in the intermediate portion located between the O-rings (440), 441 between the gap between.