KR200437332Y1 - Separated union typed connection valve for preventing flowing backward - Google Patents

Abstract

Discrete union type backflow prevention connecting valve is disclosed. According to an embodiment of the present invention, a separate union type backflow prevention connection valve installed between a water meter and a “a” shaped connecting valve includes a plurality of unions including at least one cartridge to prevent backflow of tap water. The plurality of unions may include the same cartridge, and each of the unions may include: a first fixing jaw in which one end of the first cartridge is fixed to a first union that is screwed to the water meter and the meter; A second fixing jaw formed along the inner circumferential surface of one end and connected to the “a” shaped connecting valve and screwed with a second fixing jaw to which one end of the second cartridge is held is fixed to the second union. It is formed along the inner peripheral surface of one end. The present invention replaces only the union when the cartridge is to be installed in the existing water pipe by arranging the union between the water meter and the “-“ valve connecting valve connecting the water meter and the water supply pipe. Since it is easy to replace and the replacement cost is low.

Cartridge, Union, Check Valve, Retaining Jaw

Description

Separate type union type backflow prevention valve {SEPARATED UNION TYPED CONNECTION VALVE FOR PREVENTING FLOWING BACKWARD}

A brief description of each drawing is provided to more fully understand the drawings, which are incorporated in the detailed description of the invention.

1 is a cross-sectional view showing a state in which a separate union type backflow prevention connecting valve according to the present invention is coupled between a water meter and a "a" shaped connecting valve.

Figure 2 is an external view of the detachable union type backflow prevention connecting valve according to an embodiment of the present invention.

Figure 3 is an exploded view of the detachable union type backflow prevention connecting valve according to an embodiment of the present invention

Figure 4 is a cross-sectional view of the detachable union type backflow prevention connection valve according to an embodiment of the present invention

5 is an exploded view of a detachable union type backflow prevention connecting valve according to another embodiment of the present invention;

6 is a perspective view of the fixing cap of FIG.

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

100: Separate type union type check valve

10: first union 20: second union

30: first cartridge 40: second cartridge

31: first fixed jaw 41: second fixed jaw

31: fixing cap 33: coupling groove

22: fixture

The present invention relates to a separate union type backflow prevention connection valve, and more particularly, in a separate union type backflow prevention connection valve which is screwed and installed between a water meter and an a-shaped connection valve. It relates to a structure of a non-return connection valve having a structure in which a plurality of unions with cartridge housings ("cartridges") for preventing a pressure drop are coupled.

In general, a non-return valve is a type of valve that is installed on a pipe line of a fluid to allow one-way flow of the fluid but restrict the reverse flow.

On the other hand, according to the Water Supply Facility Standard of the Ministry of Environment in 2004, two backflow check valves are to be installed, so that the water meter continuously connects the backflow check valve of the same structure to the connection valve installed inside the protection vessel having a narrow standard size. Therefore, by providing a multi-stage to overcome the limitations of the space according to the installation is the limit of the space for installation more.

However, conventionally, by inserting the cartridge into the "b" shaped connection valve is implemented, there is a problem in piping and replacement due to replacement of the cartridge.

The technical problem to be achieved by the present invention is a structure in which a plurality of unions with cartridges to prevent backflow of tap water are combined in a backflow preventing connection valve that is installed by screwing between a water meter meter and a “a” shaped connecting valve. Branch is to provide a structure of the separate union type backflow prevention connecting valve.

In one embodiment of the present invention for achieving the above technical problem, in the separate union type backflow prevention connection valve installed between the water meter meter and the "b" shaped connection valve, at least one cartridge to prevent backflow of tap water It includes a plurality of unions including, the unions provide a separate union type backflow prevention connection valve each containing the same cartridge.

The first union, which is screwed to the water meter and the meter, is formed with a first fixing jaw fixed to one end of the first cartridge along an inner circumferential surface of the first cartridge, the connecting valve having the “a” shape and The second union to be screwed is formed along the inner circumferential surface on which the second fixing jaw to which one end of the second cartridge is caught and fixed is located.

The other end of the second cartridge in the second union is coupled with a fixing cap for fixing to prevent movement of the second cartridge.

The securing cap is engaged with the other end of the second cartridge.

The fixing cap is formed with at least one coupling groove in the coupling portion of the fixing cap coupled to the second cartridge.

The cap is made of a plastic material.

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In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the drawings.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a cross-sectional view showing a state in which the separate union type backflow prevention connection valve 100 of the present invention is fastened between the water meter and the "a" shaped connection valve.

Referring to Figure 1, the separate union type backflow prevention connection valve 100 is connected to the water supply pipe (3) which is supplied to the room through the water meter (1) of the water meter through the inlet pipe (2) of the water meter The tap water supplied through the meter 1 is prevented from flowing back to the meter 1 and the inlet pipe 2 again.

According to the Ministry of Environment's 2004 Water Supply Standard, two non-return valves are required to be installed, so that a cartridge (not shown) is generally inserted into the "a" female connecting valve 15 or the "a" female connecting valve (15). ) Is provided inside the connection pipe combined with the (), so if there is a problem in the cartridge (not shown), there is a piping problem by replacing the "a" shaped connection valve 15, and also the problem of flow loss Also implicated.

2 to 4 is an external view, an exploded view and a cross-sectional view of the detachable union type backflow prevention connecting valve according to the present invention.

2 to 4, the separate union type backflow prevention connection valve 100 according to the present invention is a thread formed on both sides of the outer, the two unions 10, 20 and the hollow is provided in the longitudinal direction inside the union Cartridges 30 and 40 are provided in the hollows of the fields 10 and 20 to prevent backflow of the fluid introduced through the water meter.

Threads are formed on both outer ends of the union 10 so that the nut 22 is coupled to the left thread and the nut 22 is coupled to a meter (not shown). The inner thread of the union 20 is coupled to the right thread of the union 10. The right thread of the union 20 is the "a" shaped connection valve 15 is coupled.

3 and 4, the cartridges 30 and 40 are positioned inside the unions 10 and 20 where the cartridges 30 and 40 are inserted, and the entrances of the cartridges 30 and 40 are inserted. A portion along the inner circumferential surface of the unions 10 and 20 is cut to a portion so as to have a wider inner diameter than the inner circumferential surface of the unions 10 and 20 where the cartridges 30 and 40 are not located. Accordingly, the interface automatically has fixing jaws 31 and 41 as shown in the drawing.

The cartridges 30 and 40 are fixedly supported by the fixing jaws 31 and 41 no longer moving, and the inlet side of the union 10 into which the cartridge 30 is inserted is coupled with a meter (not shown) and the cartridge ( Since the outlet side of the union 20 into which the 40 is inserted is coupled with the “a” shaped connection valve 15, the cartridges 30 and 40 may be fixed inside the unions 10 and 20.

In the present embodiment, but illustrated as including only one cartridge in one union, it can be configured to include two cartridges.

5 is an exploded view of a detachable union type backflow prevention connecting valve according to another embodiment of the present invention.

Referring to FIG. 5, in order to insert the second cartridge 40 from the right side of the second union 20, the inner jaw of the right side of the second union 20 is cut to place the fixing jaw 41 in the same manner as described above. At this time, one end of the second cartridge 40 is supported by the second fixing jaw 41.

And, in order to secure the other end of the second cartridge 40, the present invention is provided with a fixing cap 50 to fix the second cartridge 40. The fixing cap 50 is formed to have at least one or more coupling grooves 35 at one end of the fixing cap 50 to be coupled to one end of the second cartridge 40 as shown in FIG. 6.

Accordingly, even if the pressure acts on the left side of the second cartridge 40 so that the second cartridge 40 is pushed to the right, the fixing cap 50 is engaged with the second cartridge 40 and located inside the second union 20. Of the coupling groove 35 is opened, and when the outer surface of the second cartridge 40 touches the inner circumferential surface of the second union 20, the inner circumferential surface of the second union 20 serves as a supporting role and the second The cartridge 40 no longer moves and is fixed.

6 is a perspective view of the fixing cap of FIG. 5.

The fixing cap 50 is formed to have at least one or more coupling grooves 35 at one end of the fixing cap 50 so as to be fitted to one end of the second cartridge 40. In the present invention, the ribs (not shown) are coupled to the cartridge 40 by using three coupling grooves 35 for the cartridge 40 consisting of three, but the coupling groove 35 is a rib of the cartridge 40 to be coupled. It can be configured to match the number. In addition, the fixing cap 50 is made of a plastic material.

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As described above, optimal embodiments have been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not intended to limit the scope of the invention as defined in the meaning or utility model claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention should be defined by the technical spirit of the appended utility model claims.

As described above, the present invention requires a cartridge to be installed in an existing water pipe by arranging unions that are inserted into and fixed between the “a” shaped connecting valves connecting the water meter and the water supply pipe, and which may be separated or combined with each other. Since only the union needs to be replaced, the replacement is easy and the replacement cost is low.

Claims (7)

In the detachable union type backflow prevention connecting valve installed between the water meter (1) and the “a” shaped connecting valve (15), A plurality of unions (10, 20) comprising at least one cartridge to prevent backflow of tap water, The union type backflow prevention connection valve, characterized in that the plurality of unions each comprise the same cartridge (30, 40). The method of claim 1, A first fixing jaw 31 having one end of the first cartridge 30 secured to the first union 10, which is screwed to the water meter meter and includes a first cartridge 30, has the first cartridge ( 30 is formed along an inner circumferential surface, and the second cartridge 40 is screwed to the connection valve 15 of the “-” shape and includes a second cartridge 40. Removable union type backflow prevention connection valve, characterized in that the second fixing jaw 41 is fixed to one end is formed along the inner peripheral surface where the second cartridge (40) is located. The method of claim 2, Removable union type backflow prevention, characterized in that the other end of the second cartridge 40 in the second union 20 is coupled to the fixing cap 50 for fixing to suppress the movement of the second cartridge 40 Connecting valve. The method of claim 3, wherein Removable union type backflow prevention connection valve, characterized in that the fixed cap 50 is coupled to the other end of the second cartridge (40). The method of claim 3, wherein Separation union type backflow prevention connection valve, characterized in that at least one coupling groove (35) is formed in the coupling portion of the fixing cap (50) coupled to the second cartridge (40). The method of claim 3, wherein The fixed cap 50 is a detachable union type backflow prevention connection valve, characterized in that made of a plastic material. delete

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