KR200192357Y1 - Strainer valve - Google Patents

Abstract

The present invention relates to a valve, and a strainer mounting portion for preventing the back flow of the fluid and the strainer mounting portion to enable the installation of the strainer on the circular first through hole and the shaft hole perpendicular to the first through hole and the flow path of the fluid. A body having a check valve installation portion for allowing a check valve to be installed therein; a ring having a second through hole and a shaft hole, which can be fixed and inserted into the first through hole, and coupled along an inner circumferential surface of the second through hole and having a shaft hole. A valve body inserted through a rubber packing and a shaft hole to be rotated in place, and installed inside the rubber packing to be rotatable and rotated according to the rotation angle of the shaft to determine the opening and closing degree of the through hole according to the degree of contact with the rubber packing, and one side of the shaft. It is attached to the end of the handle and the check valve installation that allows the user to easily rotate the shaft to the desired angle. It is installed so that it can be rotated at an angle, and includes a check valve body that can be rotated in one direction in a closed state and an elastic member that exerts a force in a closing direction to the check valve body. Not only does this make it easier to see, but it also prevents fluid from flowing back even when the valve is open.

Description

Strainer valve

The present invention relates to a valve, and in particular, installed in a heating pipe or a fire water supply pipe of a large apartment complex to open and close a flow path of a fluid such as water, and a strainer for filtering impurities contained in the water is installed. It is about a valve.

In general, any one side of the fluid moving tube, such as heating tube is provided with a valve to control the supply of fluid by blocking or opening the inner passage of the tube as needed. When it is necessary to filter out impurities among these valves, a strainer is installed on the flow path of the fluid. A conventional strainer valve will be described with reference to FIGS. 1 and 2 attached to such a strainer valve.

1 is a perspective view showing an example of a conventional strainer valve, Figure 2 is a cross-sectional view of the strainer valve of FIG.

As can be seen in Figures 1 and 2, the conventional strainer valve 100 has a body (110). The body 110 is installed between two pipes, and has a circular through hole 111 through which fluid such as water passes. The valve mechanism installation part 112 is formed in a direction inclined at a predetermined angle in one side through hole 111 of the body 110, and in a direction inclined at a predetermined angle in the lower through hole 111 of the body 110. A strainer mounting portion 114 is formed.

As shown, the valve seat 121 is installed at one side of the internal valve mechanism mounting part 112 of the body 110, and the disk 123 coupled to the spindle 122 and the spindle 122 at the upper side thereof. The valve mechanism 120 is formed of a handle 124 that allows the spindle 122 to be rotated by hand, and a bonnet 125 that is coupled to the body 110 to support the spindle 122. have. The bonnet 125 is coupled near the inlet of the valve mechanism mounting portion 112 via a plurality of bolts 126 and nuts 127.

Moreover, the strainer installation part 114 is provided with the strainer 130. As shown in FIG. The strainer 130 is used to filter out impurities contained in the fluid passing therethrough and blocks one passage. The lid 132 for preventing the strainer 130 from being detached and preventing the leakage of water and the like through the strainer mounting portion 114 is provided near the entrance through the plurality of bolts 133 and the nuts 134. Are combined.

The conventional strainer valve 100 as shown in Figs. 1 and 2 has a body 110 formed in four directions, which is complicated in shape, difficult to make, and has a large number of sharp bends. I have a problem that is broken. In addition, since the bonnet (bonnet, 125) must be firmly coupled to the body 110 using a plurality of bolts 126 and the like when the valve mechanism 120 is installed, it takes a lot of parts and takes a lot of time. have. In addition, the conventional one has a large fluid resistance because the internal path is squiggly, it is difficult to check the opening and closing degree, and also takes a lot of time because the handle has to be rotated several times to open and close the valve. In addition, if a pressure reversal occurs while the valve is open, a reverse flow of the fluid occurs, but a conventional valve does not prevent this.

The purpose of the present invention is to make the shape of the body simple and easy to assemble, and in particular, to eliminate the process of coupling the bonnet with several bolts on the body, so that the number of parts, labor and work time can be drastically shortened. In addition, the present invention provides a strainer valve that prevents fluid from flowing back even if the valve is left open.

1 is a perspective view showing an example of a conventional strainer valve,

2 is a cross-sectional view of the strainer valve of FIG.

3 is a perspective view showing a strainer valve according to the present invention,

4 is a longitudinal sectional view of the strainer valve of FIG. 3,

5 is a cross-sectional view according to FIG. 4 I-I;

6 is a perspective view showing an axis,

7 is a perspective view of a valve body coupled to the axis of FIG. 6,

8 is a plan view of the valve body of FIG. 7;

9 is a front view of the ring,

10 is a cross-sectional view of the ring,

11 is a front view of the rubber packing,

12 is a sectional view of the rubber packing.

Explanation of symbols on the main parts of the drawings

200: strainer valve 210: body

211: first through-hole 212, 234, 241, 262: shaft hole

213: shaft support portion 214: strainer mounting portion

217: check valve mounting portion 218: step

220: strainer 222: stopper

230: ring 240: rubber packing

250, 250a: axis 252: non-circular cross section

260, 260a: valve body 264, 264a: polygon groove

269: third through-hole 270: handle

280: stopper 290: check valve body

291: rotating shaft 292: elastic member

293: Fastener

An object of the present invention is to provide a strainer valve installed on a movement path of a predetermined fluid to filter impurities contained in the fluid and to open and close the movement path of the fluid, if necessary, wherein the first round tube is provided. A body having a checker mounting portion for installing a strainer mounting portion for installing a strainer on a shaft hole and a fluid moving path perpendicular to the sphere and the first through hole, and a check valve for preventing backflow of the fluid. A ring which can be fixed by being inserted into the first through hole and has a second through hole and an axial hole, a rubber packing coupled along the inner circumferential surface of the second through hole and having a axial hole, an axis inserted through the axial hole to be installed in a rotatable position, and inside the rubber packing It is installed to be rotatable and rotated according to the rotation angle of the shaft, opening and closing of the through hole according to the degree of contact with the rubber packing Valve body to determine the degree, the handle is coupled to one end of the shaft to allow the user to easily rotate the shaft to the desired angle, the check valve mounting portion is installed to be rotated at a predetermined angle, check valve that can be rotated in one direction in the closed state A strainer valve comprising a sieve and an elastic member for exerting a force in a direction closed to the check valve body.

It is preferable that the above check valve bodies have a configuration in which two are installed in the same plane in the form of a semicircle.

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

Figure 3 is a perspective view showing a strainer valve according to the present invention, Figure 4 is a longitudinal cross-sectional view of the strainer valve of Figure 3, Figure 5 is a cross-sectional view according to Figure 4 I-I.

3 to 5, the valve 200 according to the present invention includes a body 210. The body 210 is installed between two pipes, the inside of which is provided with a circular first through hole 211, the shaft hole 212 in the direction perpendicular to the first through hole 211 inside It has a shaft support portion 213 formed along. One side of the body 210 is formed with a strainer mounting portion 214 to allow the strainer 220 to be installed on the movement path of the fluid. In addition, each end of the body 210 is formed with a flange 216 having a bolt hole 215 for coupling to the pipe, respectively.

As shown, the check valve installation portion 217 is formed near the opposite end of the handle 270 of the body 210. The check valve mounting portion 217 is provided with a step 218 to allow the check valve body 290 to be described later to be rotated only in one direction in a closed state, and to prevent the reverse flow by preventing the check valve body 290 from being opened on the other side. It is to make it possible.

As shown in the drawing, the check valve mounting portion 217 is provided with a check valve body 290 as shown in FIG. The check valve body 290 has a semicircle shape, and is installed to face each side and open only in one direction. The check valve body 290 is supported by the rotating shaft 291 provided through the fastener 293, and receives a force in the direction of closing by the elastic member 292. When the check valve body 290 is closed under the force of the elastic member 292, when the valve body 260 is opened, fluid flows in and pushes the two check valve bodies 290 to rotate to open the check valve body 290. To do that. The check valve body 290 opens when the moment the fluid exerts on the check valve body 290 is greater than the moment caused by the elastic member 292. When the fluid flows back while the valve body 260 is open, the check valve body 290 is caught by the step 218 so that the fluid does not open on the opposite side.

As shown, the strainer valve 200 according to the present invention is provided with a ring 230. The ring 230 is inserted near the inlet of the first through hole 211 and is fixed by the head 232 of the bolt 231, and a second through hole 233 is formed therein. The ring hole 234 is formed in the ring 230 in the vertical direction. In addition, the packing departure preventing groove 235 is formed along the inner circumferential surface of the second through hole 234 of the ring 230, and the packing wing seating portions 236 are formed along the edges thereof. This ring 230 can be found in more detail with reference to FIGS. 9 and 10.

Strainer valve 200 according to the present invention is provided with a rubber packing (240). The rubber packing 240 is coupled to the second through hole 233 of the ring 230, which also has a shaft hole 241. The rubber packing 241 is for maintaining watertightness between the pipes to be connected and for preventing water or the like from passing through at all with the valve closed. The rubber packing 240 protrudes outward from both ends of the cylindrical body 242 and the body 242 disposed along the inner circumferential surface of the second through hole 233 to maintain watertightness with the neighboring pipe 243. And an escape prevention jaw 244 that protrudes outward on an outer circumferential surface between the two wings 243 and is coupled to the packing removal prevention groove 235. This rubber packing 240 can be seen in more detail with reference to FIGS. 11 and 12.

Strainer valve 200 according to the present invention is provided with a shaft (250). The shaft 250 is inserted through the shaft hole 212 to cross the first and second through holes 211 and 233 so that the shaft 250 can be rotated in place, and the valve body 260 is coupled thereto. That is, the shaft 250 is for enabling the valve body 260 to rotate. This axis 250 can be found in detail with reference to FIG. 6.

The valve body 260 is installed to be rotatable inside the rubber packing 240 and is rotated according to the rotation angle of the shaft 250 to determine the opening and closing degree according to the degree of contact with the rubber packing 240. This valve body 260 can be understood in detail with reference to FIGS. 7 and 8.

As shown, the handle 270 is coupled to the upper end of the shaft 250, and the handle 270 is provided with the teeth 281 formed along the edge of the upper body of the lower body 210 of the handle 270. A disk-shaped stopper 280 is installed to maintain a predetermined angle. The handle 270 is for allowing the shaft 250 to rotate even with a small force. The handle 270 is rotatably installed, and the end of the auxiliary handle 272 is interposed between the handles 272 via a spring 273 therebetween. In order to be hung on the tooth 281, and to rotate the shaft 250 for the opening and closing operation, grab the auxiliary handle 272 so that the end is separated from the tooth 281, and then the handle 270 by the required angle ) Can be rotated.

As shown, the strainer mounting portion 214 is provided with a strainer 220, the stopper 222 is coupled to the body 210 by the bolt 223 at the inlet.

That is, by holding the auxiliary handle 272 so that the end thereof is separated from the teeth 281, and then rotates the handle 270, the shaft 250 coupled thereto is rotated, and thus is coupled to the shaft 250 The valve body 260 which is present also rotates. Accordingly, the valve 200 is opened, and fluid such as water passes through the strainer 220 along the first through hole 211 inside the body 210. When the valve 200 is to be closed, the reverse process may be performed. Reference numeral 254 is a screw for preventing the shaft 250 from coming off.

3 to 5, the strainer valve 200 according to the present invention has a body 210 formed only in three directions, and its shape is simple and easy to make. In addition, since it is not necessary to use several large bolts and nuts to install a valve mechanism including the valve body 260, the shaft 250, the handle 270, and the like, the number of parts is small. Moreover, the check valve body 290 of the half moon shape is provided and the back flow is prevented even in the state in which the valve body 260 is open.

FIG. 6 is a perspective view of an axis, FIG. 7 is a perspective view of a valve body coupled to the FIG. 6 axis, and FIG. 8 is a plan view of the valve body of FIG. 7.

As can be seen in Figure 6, the shaft 250 is inserted through the shaft hole 212 described above and coupled to the valve body 260 and the rubber packing 240, respectively, near the lower end of the non-circular cross-section 252 ) Is formed. This is to be coupled to the valve body 260 without the bolt 8 to transmit the rotational force to the valve body 260. Of course, in some cases, without forming the non-circular cross section 252 in the shaft 250, a bolt hole is formed in the shaft 250 at a position corresponding to the vicinity of the center of the valve body 260 to couple the bolts It is a matter of course that the shaft 250 does not fall out and can also be configured to transmit rotational force toward the valve body 260. If not, a groove 253 is formed near the upper end of the shaft 250 to be coupled with a small screw 254 on the side of the shaft support 213 to prevent the shaft 250 from falling out. The hole above it is for engaging the handle 270. The handle 270 is coupled to the upper end of the shaft 250.

The valve body 260 is coupled to the inside of the rubber packing 240 is opened and closed according to the degree of rotation of the shaft 250, that is, for opening and closing the flow path of the fluid, such as water. A shaft hole 262 is formed in the valve body 260 up and down, and as shown in FIG. 7, a non-circular cross-sectional groove 264 is formed in one side of the shaft hole 262 as shown in FIG. 8. It is. This is a portion to which the non-circular cross section 252 of the shaft 250 is coupled, so that the rotational force of the shaft 250 can be transmitted without a bolt. That is, the valve body 260 is rotated according to the rotation angle of the shaft 250. At the upper end and the lower end of the valve body 260, a gushing tooth 266 is formed along the edge thereof. This is to make the water tightness of the upper and lower ends of the valve body 260 more secure. The valve body 260 determines the degree of contact between its edge and the rubber packing 240 according to the degree of rotation thereof. That is, when the valve body 260 is sufficiently rotated to one side, the valve 200 is opened as much as possible. On the contrary, when the valve body 260 is sufficiently rotated to the other side, the valve 200 is closed to prevent fluid such as water from flowing.

9 is a front view of the ring, and FIG. 10 is a sectional view of the ring.

The ring 230 is inserted into the vicinity of the inlet of the first through hole 211 of the body 210 described above and fixed with a bolt head, and has a second through hole 233 and a shaft hole 234. A packing separation preventing groove 235 is formed along the inner circumferential surface of the second through hole 233, and packing wing seating portions 236 are formed along the edges thereof. A step 237 is formed along the edge of the outer circumferential surface thereof. This is to prevent the ring 230 from being separated from the body 210 by being caught by the head 232 of the bolt 231 coupled to the body 210. The ring 230 is coupled to the body 210 in a state in which the rubber packing 240 is inserted therein, which is configured separately from the body 210 to facilitate the coupling of the rubber packing 240. .

11 is a front view of the rubber packing, and FIG. 12 is a sectional view of the rubber packing.

As shown, the rubber packing 240 is disposed along the inner circumferential surface of the second through hole 233 of the ring 230 and protrudes outward from both ends of the cylindrical body 242 and the body 242 to be watertight with neighboring pipes. Protruding outward on the outer circumferential surface between the two wings (243) and the two wings (243) for maintaining the separation is provided with a separation prevention jaw 244 coupled to the packing departure prevention groove 235, near the shaft hole 241 Reinforcement teeth 246 are formed, respectively.

In addition, the valve body 260 may be configured using a ball valve in some cases, and related matters can be seen in the specification and drawings of the patent application No. 1999-45637 filed on October 20, 1999 of the present applicant. have.

As can be seen from the above description, the strainer valve according to the present invention has a three-way shape of the body, and does not require a plurality of bolts for fastening the valve mechanism to the body. The assembly process is also relatively short. In addition, the watertight force is further excellent due to the addition of the upper and lower valve bodies. In addition, the rubber bumps prevent the rubber packing from falling off even under high water pressure, thereby providing easy maintenance.

In addition, the strainer valve according to the present invention has a small internal fluid path, so the resistance to the fluid passing through is not only small, but also easy to open and close the valve, it is easy to check the degree of opening and closing, even if the valve is open It also provides the effect of preventing the backflow of the fluid.

Claims (2)

A strainer valve provided on a movement path of a predetermined fluid and provided with a strainer for filtering impurities contained in the fluid, and opening and closing the movement path of the fluid as necessary. A checker for installing a circular first through hole, a shaft hole perpendicular to the first through hole, and a strainer mounting portion for allowing the strainer to be installed on a flow path of the fluid, and a check valve for preventing backflow of the fluid. Body in which the valve installation portion is formed; A ring which is inserted into the first through hole and is fixed and has a second through hole and an axial hole; A rubber packing coupled along an inner circumferential surface of the second through hole and having a shaft hole; A shaft inserted through the shaft hole and installed to rotate in place; A valve body rotatably installed in the rubber packing and pivoted according to a rotation angle of the shaft to determine the opening and closing degree of the through hole according to the degree of contact with the rubber packing; A handle coupled to one end of the shaft to allow the user to easily rotate the shaft to a desired angle; A check valve body installed at the check valve installation unit so as to be rotated at a predetermined angle and capable of rotating in one direction in a closed state; And And an elastic member for applying a force to the check valve body in a closing direction. 2. The strainer valve according to claim 1, wherein two check valve bodies are provided in the same plane in the form of a semicircle.