KR100726444B1 - Butterfly valve - Google Patents

Abstract

The present invention relates to a butterfly valve, wherein a ring-shaped valve seat (13) comprising a ring core (11) and a ring-type valve packing (12) is inserted into an inner diameter of a ring-type valve housing (10), and a disc-shaped valve (14) is valved. In mounting to the inner diameter of the ring-shaped valve packing 12 with the shaft 15, the center portion is formed at the inner diameter of the ring-shaped core 11, and plastically molded to the inner diameter of the ring-shaped core 11 Pipe blocking means having a closed ridge portion 121 formed on the inner surface of the ring-shaped valve packing (12); Pipe block means for plastic-molding the ring-shaped valve pad T (12) having the inner diameter ridge portion 122 in the inner diameter of the ring-shaped core body (11); The one-way serrations 112 and 113 are arranged on the left and right sides of the ring-shaped core 11 each having a bilateral width, and the ring-shaped valve packing 12 is formed on the inner diameter of the ring-shaped body 11. Loosening preventing means which is plastically molded to match the grooves of the 112 and 113; The entire circumference of the disk-shaped valve 14 is formed into a circular circumference 142, and the annular ribs 125 and 126 are formed at the inner end of the shaft holes 123 and 124 of the ring-shaped valve packing 12. The annular ribs 125 and 126 are inserted into upper and lower ends of the long shaft hole 142 of the valve 14, and then the valve shaft 15 is inserted into the long shaft hole 142.

Ring-shaped core. Ring valve packing. Pipeline blocking means. Relaxation measures. Fluid leak prevention means.

Description

Butterfly valve {Butterfly valve}

1 is an exploded perspective view of the present invention.

Figure 2 is a perspective view of a ring valve seat of the main portion of the present invention.

3 is a cross-sectional view taken along the line A-A of FIG. 1 with the disc valve open.

Fig. 4 is a sectional view taken along the line A-A in Fig. 1 with the disc valve closed.

5 is a cross-sectional view of another embodiment of a ring valve seat which is an aspect of the present invention.

6 is a cross-sectional view of yet another embodiment of the ring valve seat of the present invention.

7 is a partially enlarged cross-sectional view of FIG. 6.

8 is a cross-sectional view of another embodiment of the ring valve seat of the present invention.

9 is a cross-sectional view of FIG. 8.

10 and 11 are enlarged cross-sectional views of a part of a conventional ring valve seat.

12 is a perspective view of a disk valve which is an essential part of the present invention.

13 is a front view of FIG. 12.

14 is a longitudinal cross-sectional view of the butterfly valve of FIG. 13.

Fig. 15 is a cross sectional view of another embodiment of the ring valve seat of the present invention.

Figure 16 is a perspective view showing another embodiment of the inserting means of the present invention.

17 is a front view of a conventional disc valve.

** Description of symbols for the main parts of the drawing **

10 ............... Ring valve housing. 11 .............. Ring core.

12 ............... Ring valve packing. 13 ........... Ring valve seat.

14 .............. Disc valve. 15 ........... Valve shaft.

111 ..... Bumps. 112, 113 ..... Unidirectional toothed projections.

114 ............. Outer ring turning. 121 .......... the sealed ridge.

122 .......... Inner bulge section. 123, 124 .....

125, 126 ..... annular ribs. 141 .......... circular circumference.

142 .......... long axes. 10a .....

127 .......... cover.

The present invention relates to a butterfly valve for fastening the flow of fluid by fastening to a pipeline for conveying fluid, and more particularly, inserting a ring valve seat into an inner diameter of a ring valve housing and inserting a disc valve into an inner diameter of the ring valve seat. A valve connected to the valve shaft to adjust the disk-shaped valve with a handle connected to the outer end of the valve shaft to open and close the pipeline, wherein the channel blocking means is formed by forming a ridge in the middle of the inner diameter of the ring valve seat; The one-way serpentine is formed in the forward and backward direction from the left and right starting from the middle of the inner diameter of the ring-shaped core that constitutes the valve to form the ring-shaped core and the ring-type valve packing integrally. To prevent the ring-type valve packing loosening prevention, and the outer diameter of the ring-shaped core or the inner diameter of the ring-type valve housing Fluid leaks through ring valve inserting means for forming a number of outer diameter or inner ring protrusions so that the ring valve seat can be stably inserted into the ring-type bell housing inner diameter, and the long shaft hole into which the valve shaft for rotating the disc valve is inserted. It is an object of the present invention to provide a butterfly valve having a fluid leakage preventing means for preventing the filling.

In general, a butterfly valve inserts a ring valve seat inserted into an inner diameter of a ring valve housing having a constant width, and is connected to a valve shaft controlled by an external handle in a long shaft hole of a disk-shaped valve mounted on the inner diameter of the ring valve seat. It has been widely known that the ring valve is rotated as the valve shaft rotates to open and close the pipe through the ring valve seat. In the conventional butterfly valve is configured in the ring valve seat 100, as shown in Figure 10 and 11 to form a dovetail 102 in the inner diameter of the ring-shaped core 101, ring-shaped valve packing ( By forming the dovetail groove 104 in the outer diameter of the 103, the dovetail 102 is artificially inserted into the dovetail groove 104 to bind the ring core 101 to the outer diameter of the valve packing 103 to form a ring valve The sheet was formed. However, the conventional ring-shaped valve seat as described above is formed by artificially combining the dovetail 102 and the dovetail groove 104 by separately forming the ring-shaped core body 101 and the valve packing 103, and thus, a disc-shaped valve ( The inner periphery of the ring-shaped valve packing 102 in the direction in which the circular valve 105 is closed, as shown in FIG. 10, is circumferentially close to the inner surface of the valve packing 102. By causing a strong friction on the ring-type valve packing 102 will be closed while being pushed in the chewed state. Therefore, when used to some extent, the ring-shaped valve packing 102 relaxes and expands to form a space, as shown in FIG. 11, between the dovetail 102 and the dovetail groove 104, thereby forming a conduit within the space 106. There is a problem that the fluid flowing through the disc-shaped valve 105 is not closed.

In the related art, the upper and lower ends of the long shaft hole 106 of the disk-shaped valve 105 are formed into straight lines 107 and 108, and the inner side of the shaft hole of the ring-shaped valve packing 102 to which the long shaft hole 106 abuts is flat. Since it is formed in the form of a straight line 107, 108 is also a problem that the fluid flowing through the pipe leaks through the shaft hole to the outside.

The present invention has been made to solve the above-mentioned problems, ring-shaped valve packing that is integrally fired with the ring-shaped core by forming a ridge to be gradually inclined to the intermediate point from the inlet side and the drainage side of the inner diameter of the ring-shaped core The circumference of the disk-shaped valve which is closed when the pipeline is closed to block the pipeline by forming the closed ridge in the form of the ridge as described above, and the pipe blocking means for tightly sealing the closed ridge to the closed ridge, or the plate-shaped ring core Pipe line blocking means formed by forming an inner diameter ridge at an intermediate point of the ring-type valve packing inner diameter which is fired integrally, and a one-way serrated protrusion formed in both directions divided into two parts of the inner diameter of the ring-shaped core in the inlet side and the draining side in the forward and reverse directions. The valve packing is fired in the form of meshing with the one-way serrated protrusion Ring-type valve packing relaxation prevention means for preventing the inner surface of the ring-type valve packing from being chewed and pushed by friction of the disc-shaped valve in the tongue process, and the periphery of the disc-shaped valve is formed around the garden, and the valve shaft is inserted. Is formed by the annular rib inside the shaft hole of the ring-shaped valve packing, the fluid leakage prevention means for preventing the leakage of fluid by the annular rib by inserting the valve shaft in the state in which the annular rib is inserted into the long shaft hole of the disc-shaped valve, It includes a ring valve inserting means for forming an annular projection in the outer diameter of the ring-shaped core or the inner diameter of the ring-shaped valve housing to firmly insert the ring-shaped valve sheet to the inner diameter of the ring-shaped valve housing.

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

Figure 1 is an exploded perspective view of the present invention, Figure 2 is a perspective view of the ring-shaped valve seat of the main portion of the present invention, Figure 3 is a cross-sectional view taken along line AA of Figure 1 with the valve plate open, Figure 4 is a view showing the valve plate closed state. A cross-sectional view taken along line AA of FIG. 1, FIG. 5 is a cross sectional view of another embodiment of a ring valve seat which is an essential part of the present invention, FIG. 6 is a cross sectional view of another embodiment of the ring valve seat of the present invention, and FIG. 8 is a cross-sectional view of still another embodiment of the ring valve seat of the present invention, FIG. 9 is a cross-sectional view of FIG. 8, FIGS. 10 and 11 are enlarged cross-sectional views of a portion of a conventional ring valve seat, and FIG. 12 is a circle which is an essential part of the present invention. Figure 13 is a perspective view of the plate valve, Figure 13 is a front view of Figure 12, Figure 14 is a longitudinal sectional view of a butterfly valve fastening Figure 13, Figure 15 is a yellow cross-sectional view of another embodiment of the ring valve seat of the present invention, Figure 16 is the present invention Another embodiment of inserting means 17 is a front view of a conventional disc valve. Referring to this, a ring valve seat 13 including a ring core 11 and a ring valve packing 12 is inserted into an inner diameter of a ring valve housing 10. The disk-shaped valve 14 is mounted on the inner diameter of the ring-shaped valve packing 12 of the ring-shaped valve seat 13 so as to be rotated by the valve shaft 15 and connected to the outer end of the valve shaft 15. 14) In the intermittent operation of the fluid flowing in the conduit, the ring-shaped valve is formed by gradually forming a raised portion 111 inclined in an inclined half in the middle of the inner diameter of the ring-shaped core 11 in the inlet side and the drainage side. The packing 12 is heated and fired in a mold to form a closed ridge 121 having the same shape as the ridge 111 in the middle of the ring-shaped valve packing 12, and the disc-shaped valve 14 is closed. The circumference of the disk-shaped valve 14 is in close contact with the hermetic ridge 121 to close the pipeline. Flowing the fluid conduit to have a cut-off means to be blocked completely.

In addition, in another embodiment of the above pipe blocking means, the inner diameter ridge portion 122 in the middle of the inner diameter of the ring-shaped valve packing 12 is formed integrally with the inner diameter of the ring-shaped core 11 that does not form the ridge 111 It may be formed so that the outer diameter of the disk-shaped valve 14 is in close contact with the inner diameter ridge portion 122 to completely block the fluid flowing through the conduit.

The ring-shaped valve packing 12 of the present invention forms the cover 127 slightly larger than the diameter of the ring-type valve packing 12 on the inlet side and the drainage side, as shown in FIG. 15, before and after the ring-shaped valve housing 10. When the ring-type valve seat 13 is inserted into the cover, the lid 127 is brought into close contact with the inlet and drain sides of the ring-type valve housing 10 to prevent leakage of fluid flowing through the pipe when the pipe is connected. You can do that.

In addition, the present invention divides the one-way protrusions 112 and 113 of one-way serrated shape in the cross-section on the both sides of the inner diameter of the ring-shaped core 11 into the inlet side and the drainage side in a cross-section on the inclined line and the vertical line on the left and right sides. To form, the vertical line and the inclined line of the one-way protrusion 112, 113 is formed to be opposite to each other. As described above, the ring-shaped valve packing 12 formed integrally with the inner diameter of the ring-shaped core 11 in which the one-way protrusions 112 and 113 are formed in the forward and reverse directions is formed in an interlocked form according to the grooves of the one-way protrusions 112 and 113. So. The ring-shaped valve packing 12 is pushed while being chewed as shown in FIGS. 10 and 11, even though the circular valve 14 that blocks the pipeline closes while strongly rubbing the inner surface of the valve valve packing 12. (11) and the relaxation prevention means to prevent the relaxation.

In addition, the present invention forms a plurality of outer diameter ring projections 114 on the outer circumferential surface of the ring core 11 integral with the ring-type valve packing 12 as shown in Figure 8 and 9 the inner diameter of the ring-type valve housing 10 When the ring-shaped valve seat 13 is forcibly inserted, the means for inserting the ring-shaped valve housing 10 is securely inserted into the ring-shaped valve housing 10 in the state in which the outer diameter ring projection 114 is pressed slightly.

In addition, the insertion means is formed in the inner diameter of the ring-shaped valve housing 10 a plurality of inner diameter ring projection (10a) as shown in Figure 1 and 16 to form a ring-shaped valve seat 13 ring-shaped valve housing (10) When forcibly inserted into the inner diameter of the inner ring projection (10a) may be to be firmly inserted while being slightly pressed.

In addition, the present invention is formed in the circumference of the disk-shaped valve 14 as a circular circumference 141, as shown in Figure 1 and 12, 13 and 14, the inner diameter side shaft hole of the ring-shaped valve packing 12 Annular ribs 126 and 127 are formed in the upper and lower inner diameters of the disc-shaped valve 14 and the long shaft hole 142 in which the valve shaft 15 is inserted by forming the annular ribs 125 and 126 in the 123 and 124. Then, the valve shaft 15 is inserted into the long shaft hole 142 so that the one-shaped ribs 126 and 127 are in close contact with the upper and lower outer diameters of the valve shaft 15, so that the fluid flowing through the pipe line passes through the long shaft hole 142. It is to constitute a fluid leak prevention means to prevent leakage to the outside.

According to the present invention as described above, the disc-shaped valve 14 is completely closed in the pipeline blocking means of the closed ridge portion 121 or the inner ridge portion 122 at the inner diameter of the ring-type valve packing 12, and thus the butterfly valve portion of the related art. Rather, the effect of blocking the pipeline is superior.

 In addition, the present invention is a circle of the process of blocking the pipeline by the relaxation preventing means formed by the ring-shaped valve packing 12 to match the groove of the one-way protrusions 112, 113 formed on the inner surface of the ring-shaped core (11) The ring-shaped valve packing 12 is retained in the original state without being pushed back while being chewed by frictional force around the plate-shaped valve 14, so that the long-term use can be performed without failure.

In addition, the present invention is provided with an insertion means consisting of an outer diameter ring protrusion (114) formed on the outer peripheral surface of the ring core 11, or an inner diameter ring protrusion (10a) formed in the inner diameter of the ring-type valve housing 10, the ring valve There is also an effect that the ring-shaped valve seat 13 is firmly inserted into the inner diameter of the housing 10.

In the present invention, the inner diameter of the disk-shaped valve packing 12 and the outer diameter of the disk-shaped valve 14 are formed in a circular shape, and the annular ribs 125 and 126 formed inside the shaft holes 123 and 124 are disk-shaped. In addition, the fluid flowing through the pipe is prevented from leaking to the outside through the long shaft hole 142 by a fluid leakage preventing means in close contact with the upper and lower outer diameters of the valve shaft 15 inserted into the long shaft hole 142 of the valve 14. will be.

Claims (4)

      Insert the ring valve seat 13 into which the ring-shaped valve packing 12 is fitted in the inner diameter of the ring-shaped core 11 into the ring-type valve housing 10, and connect the valve shaft 15 to the inner diameter of the ring-type valve seat 13. In installing one disk-shaped valve 14, The airtight portion 111 formed on the inner diameter of the ring-shaped core 11 and the inner diameter of the ring-shaped valve packing 12 integrally formed with the inner diameter of the ring-shaped core 11 is formed by the raised portion 111. By having a pipe blocking means of the), the outer diameter of the closed disk-shaped valve 14 is in close contact with the closed ridge 121 to block the pipe, Although the outer diameter of the disk-shaped valve 14 to block the pipeline is applied to the inner surface of the ring-type valve packing 12, the ring-type valve packing 12 is provided with a relaxation preventing means so that the ring-shaped core 11 does not relax from the ring-shaped core 11, The anti-relaxation means forms one-way protrusions 112 and 113 in the forward and reverse directions on both sides of the ring-shaped core 11 in which the inner diameter of the ring is divided into two, and the ring-shaped valve packing 12 in the inner diameter of the ring-shaped core 11. Butterfly valve, characterized in that formed integrally to be joined in the form of engaging with the groove of the one-way protrusion (112, 113). The method of claim 1, The outer diameter of the disk-shaped valve 14 for mounting the valve shaft 15 to the inner diameter of the ring-shaped valve packing 12 of the ring-shaped valve seat 13 is formed with a circular circumference 141, and the shaft hole of the ring-type valve packing 12 is formed. The annular ribs 125 and 126 are formed at the inner ends of the 123 and 124 to insert the annular ribs 125 and 126 into the upper and lower inner diameters of the long shaft holes 142 of the disc valve 14, and then the valve shafts. Butterfly (15) is characterized in that the butterfly is provided with a fluid leakage preventing means for preventing the leakage to the outside through the valve shaft 15 and the long shaft hole 142 flowing through the pipe by inserting the long shaft hole (142) valve. delete delete

Images