KR100827400B1 - Water meter structured having countercurrent preventioon cap and pipe coupling - Google Patents

Abstract

A water meter and a manufacturing method thereof are provided to easily connect the water meter to a water pipe using a simple coupling member for pipe connection instead of a screw. A water meter having a pipe connection includes a receiving part, a packing member(21), an elastic member(22), a jaw coupling(20), a snap ring(25), and coupling members. The receiving part has a locking protrusion, a snap ring insertion groove, and a sloped protrusion for receiving the coupling member inside a water inlet and a water outlet. The jaw coupling is inserted to the receiving part after the packing member and the elastic member are inserted in the receiving part. The snap ring is fitted to the exterior of the jaw coupling. Coupling holes are formed on the exterior of the jaw coupling so that jaws(26) are coupled into the coupling holes.

Description

Water meter structured having a pipe connection and a manufacturing method thereof {water meter structured having countercurrent preventioon cap and pipe coupling}

Figure 1a is a perspective view showing the internal structure of the water meter in the form of dividing the circular middle of the water meter by ½ before interpolating the coupling member.

Figure 1b is a cross-sectional view showing the internal structure of the water meter before interpolating the coupling member.

Figure 2a is a cross-sectional view showing the structure of the coupling member is inserted into the inlet and outlet of the water meter.

FIG. 2B is a top plan view of FIG. 2A;

Figure 3a is an enlarged view of the water intake portion 10 of the water meter, Figure 2a is a cross-sectional view showing the internal structure of the coupling member is inserted.

Figure 3b is an exploded perspective view showing the coupling structure of the coupling member of the water inlet 10 of Figure 3a water meter.

4 shows a water meter having a structure in which a backflow prevention cap is additionally inserted,

Figure 4a is a perspective view of the water meter in the form of a ½ circle configured to interpolate the backflow prevention cap before interpolating the coupling member.

4b is a cross-sectional view of a water meter in a ½ circle configuration configured to interpolate a backflow prevention cap prior to interpolating its coupling member;

Figure 4c is a plan view showing a water meter in the form of a ½ circle configured to interpolate the backflow prevention cap before interpolating the coupling member.

Figure 4d is an exemplary view showing the flow of water in the forward direction in the water meter with the coupling member and the backflow prevention cap interpolated.

Figure 4e is an exemplary view showing the flow of water coming in the reverse direction in the water meter interpolating the coupling member and the backflow prevention cap.

Figure 5a is a perspective view showing the configuration of the non-return cap.

Figure 5b is a perspective view showing another configuration of the non-return cap.

Figure 6 is a process diagram showing a manufacturing method for easily manufacturing a water meter of the structure having the pipe coupling member and the backflow prevention jaw.

******** Description of the main signs in the drawings ********

10: Water meter inlet (outlet) 11: Jam jaw

12: snap ring insertion groove 13: inclined jaw

15: receiving part

20: jaw coupling 21: packing member

22: elastic member 23: snap ring seating groove

24: splice 25: snap ring

26: fixed jaw 30: water pipe (connection pipe)

40: backflow prevention cap 41: support

42: prevention cap 43: convex portion

50: water meter 51: bottom plate

52: meter support jaw 53: inlet partition wall

54: exit partition

The present invention relates to a structure of a water meter circular core, provided with a receiving portion for accommodating the coupling member by the inner diameter of the water meter inlet and outlet, the receiving portion is provided with a coupling member for forming a watertight structure A stainless steel water meter prototype core and a method for manufacturing the same.

The conventional water meter has been generally used as a casting product made of alloy brass mainly composed of copper (Cu) and zinc (Zn) or alloy bronze mainly composed of copper (Cu) and tin (Sn). Castings made of bronze or bronze contained trace amounts of lead (Pb) and antimony (Sb), which are harmful to humans.

Looking at the casting process for manufacturing a brass or bronze water meter, it has been manufactured as a circular weighted article by vacuum precision casting method, it has a tap water inlet, bottom plate, a measuring jaw and rotates the meter reading part inside the water meter. First, a complex mold is formed to form an internal structure through which the water is discharged through the water extraction groove, and the element is formed in a circle by melting and injecting and solidifying the element. Put the wax back between the outer mold and the urea core, and after the wax is hardened, it takes a process of melting the urea by dissolving the urea in the article. It was a fair.

Particularly, in order to connect the water meter with the water pipe, most of the water meter is cut into the water inlet and the water outlet by screwing the screw into the water pipe, and the coupling part is sealed by using a packing means such as an O-ring. If it is different from the standard of the pipe provided by the water meter, the process of adding the connecting pipe in the middle, combining the water pipe and the connecting pipe, and combining the connecting pipe and the water meter requires a lot of work and double the additional effort and cost. This had a problem of being exhausted.

In other words, if the water inlet or outlet of the water meter has a different diameter from the water pipe, it is not possible to directly seal the connection, but additionally install a connection pipe that can be adapted to each other in the middle. Due to the underground work, there have been many difficulties in the task of combining the water pipe and the pipe and recombining the pipe and the water meter.

In addition, the water meter is a device for measuring the amount of use of tap water, there was also a problem that some unscrupulous users can not check the actual amount of the water back to the water meter.

Therefore, in the present application, a water meter and a pipe pipe are easily sealed in order to solve the problem of combining the water pipe and the connecting pipe and combining the connecting pipe and the water meter with a lot of work and costly additional effort and cost. The invention started with the technical problem to provide a water meter having a coupling structure capable of forming a watertight structure by combining.

Accordingly, the present invention provides a water meter circular middle structure provided to measure the amount of water flowing by using a metering means built into the water meter while flowing water into and out of the inlet, the inlet and outlet of the water meter circular middle An accommodation part is provided for accommodating the coupling member with an inner diameter, and the accommodation part has an object of providing a water meter circular core having a coupling member for forming a watertight structure.

In addition, the present application to provide a stainless steel product to fundamentally block the contamination of the water meter, and provides a method of manufacturing a water meter in which the coupling member is integrally provided on the inlet side and the outlet side of the water meter.

In addition, the water meter structure, has a purpose to provide a water meter structure further provided with a backflow prevention cap and the coupling member is integrally provided on the inlet side and the outlet side of the water meter.

The present invention is a water meter circular middle structure provided to measure the amount of water flowing by using a metering means built in the water meter while flowing water into and out of the inlet, the inner diameter of the inlet and outlet of the water meter circular middle An accommodation part for accommodating a coupling member is provided and provided, and the accommodation part has a problem to provide a water meter circular core provided with a coupling member for forming a watertight structure.

Various means may be mobilized to perform the above task, as an embodiment, the receiving portion for accommodating the coupling member by the inner diameter of the water inlet and outlet of the water meter circular core, snap ring recess and inclined jaw And a locking jaw is formed, and a packing member and an elastic member are introduced into the locking jaw, and a jaw coupling is inserted into a pipe inner diameter, and an end portion is bent to the outer circumferential surface of the jaw coupling so as to be spaced apart. The snap ring is provided to be fitted into the snap ring seating groove, and a plurality of coupling holes formed on the outer surface are provided with a coupling member having a structure in which a fixed jaw is coupled and positioned on an inclined jaw. The invention is completed by confirming that the middle character can be obtained.

In addition, it is possible to add a backflow prevention function by embedding a backflow prevention cap toward the outlet in the water meter.

Herein is provided with a receiving portion for accommodating the coupling member in the inner diameter of the inlet and outlet of the water meter circular core of the water meter, the receiving portion is a method of manufacturing a stainless steel water meter circular core of the water meter is provided so that the coupling member is built By dividing the mold for the water meter weight meter into a ½ circle, and injecting the wax into the inlet, the outlet, the bottom plate, the measuring support jaw, the inlet partition and the outlet partition, and the receiver for inserting the coupling member in a symmetrical structure. Injecting the product; Integrally bonding circular wax by forming a space in which a coupling member is embedded in a receiving part in a process of bonding the 1/2 products having a symmetrical structure against each other; Preparing a mold using the circular wax product, removing the wax, baking the mold, and dissolving the stainless alloy to obtain a stainless circular core including a casting operation step; A stainless steel water meter circular core with a coupling member may be obtained by interpolating a coupling member manufactured by a separate process into a stainless circular core.

Therefore, the present application is a connection structure that can easily and easily hermetically couple the water meter and the water pipe (pipe) to a new connection structure of the water meter which is easily hermetically coupled without screwing when the water pipe pipe and the water meter are combined as in the related art. Is initiated.

More specifically, a technical idea of a water meter provided with a coupling member integrally formed on the inlet side and the outlet side of the water meter so as to be easily coupled between the water meter and the water pipe is disclosed, and into the water meter Disclosed is a technical idea of a water meter having a structure in which a backflow prevention cap is further embedded, and a technical idea of a method of manufacturing a water meter having the above complicated structure.

The method of forming the coupling member on the inlet side and the outlet side of the water meter may be applied in various ways, but in this application, the receiving portion is formed by the inlet of the inlet and the outlet of the outlet, and the jaw couples by the inner diameter of the inlet or outlet. A ring is inserted, and a packing member and an elastic member are provided between the locking jaws and the jaw coupling by the outer circumferential surface of the jaw coupling to provide a ring shape, and the snap ring is inserted into the snap ring insertion groove by the circumferential surface of the jaw coupling. The watertight structure could be achieved by combining the fixed jaws with the plurality of coupling holes.

The packing member used in the coupling member is a ring-shaped packing member made of a flexible material such as V-packing and O-ring, and prevents tap water from escaping to the outer circumferential surface of the jaw coupling. Between the coupling and the packing member, in addition to pushing the packing member, the jaw coupling is pushed out of the inlet and outlet of the water meter when the pipe is not connected, and the snap ring is spaced apart from the snap ring insertion groove of the coupling member. It can be bent in a state that can handle the function of tightening or releasing the jaw coupling in accordance with the change in the diameter of the locking jaw.

In addition, when the backflow prevention cap is to be incorporated into the water meter having the coupling part, a structure in which a backflow prevention cap selected from a stainless steel plate or a natural buthyl rubber (NBR) material, a silicon material, a ceramic material, and other new materials is provided. Can provide.

Hereinafter, a preferred configuration example showing the water meter structure of the present application and a manufacturing method will be described in detail with the accompanying drawings.

Figure 1 shows the structure of the water meter of the present application, Figure 1a is a perspective view showing the structure of the water meter separated into ½ circle, Figure 1b is a sectional view thereof.

It has a water inlet 10 and a water outlet 10 ', the inner core is provided with a bottom plate 51, meter support jaw 52, water inlet partition 53, water outlet partition 54, In the half-circular water meter structure having a structure for measuring the flow rate of tap water by entering the inlet part, passing through the inlet partition wall, and passing through the inlet partition wall to the outlet part, it is accommodated in the inlet part 10 and the outlet part 10 '. The water meter structure provided with the part 15 is shown.

FIG. 2A is a cross-sectional view illustrating a structure in which the coupling member is inserted into the water receiving portion 10 and the water receiving portion 10 'of the water receiving portion 10' of FIG. 1, and FIG. 2B is a top plan view thereof. The coupling member is inserted in the water inlet part and the water outlet part of the meter.

The interpolated structure of the coupling member is shown in detail in FIG. 3. FIG. 3A is an enlarged view of the coupling member interpolated in the inlet portion of FIG. 2A, and FIG. 3B shows the coupling member of FIG. 3A. An exploded perspective view is shown.

A snap ring insertion groove 12, an inclined jaw 13, and a locking jaw 11 are provided as an accommodating part 10 in the inlet 10 of the water meter. The accommodating part 15 in the inlet is a packing member 21 and an elastic member. The member 22 and the jaw coupling 20 are sequentially inserted, and the snap ring 25 is fitted into the snap ring seating groove 23 of the jaw coupling 20, and the fixed jaw ( A coupling coupling structure in which 26 is fitted is shown.

Referring to FIG. 3b in more detail, the packing member 21 is first introduced into the catching jaw 11 inside the inlet or outlet of the water meter, and the other connecting pipe is the inlet of the water meter. And watertight structure of the connecting pipe and water metering period when drawn into the outlet, and the packing member is made of V-packing, backup ring, O-ring, etc. It may be made of a laminated configuration, it is preferable to protrude to some extent to engage the diameter of the pipe as shown in Figure 3a.

After the packing member 21 is drawn in, the elastic member 22 is drawn in to fix the packing member and to push the jaw coupling to the free end of the water inlet or outlet of the water meter. The packing member may use a general spring, it is preferable that a support member for supporting the spring at both ends of the spring is installed, in Figure 3 is installed a support member for supporting the spring only to the packing member and jaw coupling (20) ) Can take the structure of supporting the spring of the packing member.

The snap ring 25 is bent at both ends and positioned in the seating groove 23 of the jaw coupling 20, and is formed in a structure that is caught by the insertion groove 12 of the inlet or outlet of the water meter, and the water pipe 30 is connected to the pipe. When the coupling to the water meter (coupling), and then want to remove the connection pipe again by pressing both ends of the snap ring 25 using a work tool is provided to easily remove the connection pipe.

The fixed jaw (26) is engaged with the connecting pipe when the water pipe (30) connecting pipe is inserted into the jaw coupling to function to fix the water pipe (30) connecting pipe, the inclined jaw (13) of the inlet 10 When the water pipe 30 is connected to the insertion pipe is inserted to facilitate the insertion of the connection pipe, and when removing the connection pipe, the fixing jaw that was spaced apart to press the surface of the connection pipe in various directions so that it can be firmly fixed. It is provided to function.

4 shows a water meter having a structure in which a backflow prevention cap is additionally inserted into a water meter of a structure in which a coupling coupling member is installed, and FIG. 4A is configured to interpolate the backflow prevention cap before inserting the coupling member. Fig. 4B is a sectional view, Fig. 4C is a plan view, and Figs. 4D and 4E show the flow of water in the water meter in which the coupling member and the backflow prevention cap are inserted. have.

That is, by additionally configuring a backflow prevention cap in the water outlet of the water meter to allow the tap water to flow in the forward direction as shown in Figure 4d, it is blocked by the backflow prevention cap in the reverse direction as shown in Figure 4e to prevent the tap water from flowing. It is shown.

5a and 5b is a perspective view showing the configuration of the backflow prevention cap, consisting of a support portion 41 caught on the support jaw of the water meter to the top and a prevention cap 42 to block the hole of the outlet portion partition wall to the bottom, As in 5b, it is preferable that the prevention cap has a convex portion 43.

FIG. 6 is a schematic process diagram illustrating an embodiment of a manufacturing method for easily manufacturing a water meter having a structure having a pipe coupling member and a backflow prevention jaw.

Design / manufacture the wax model mold according to the requirements and installation specifications of the customer, but it is a concrete element for rotating the meter reading part and preventing backflow while inducing tap water flow. It has a bottom plate, a meter support jaw, an inlet partition wall, a water outlet partition wall, a latching jaw to which a coupling member is caught, a support jaw supporting a backflow prevention cap, and a watertight lid part to be symmetrical in a ½ circle to form an inner core part. Design the mold to get a wax product

After forming a space to form the locking step and the support jaw inside the wax product of the symmetrical structure, a predetermined space is formed in the locking step and the support jaw in the process of abutting the wax products having the symmetrical structure with each other in a symmetrical structure. To form a space so that the coupling member and the backflow prevention cap are built, and then integrally joined in a circular shape,

After the mold is manufactured by using the circular wax product, the wax is removed, the mold is fired, the stainless alloy is melted and cast to obtain a stainless circular core, and then the coupling member and the backflow prevention cap manufactured in a separate process are made of stainless steel. It is shown briefly that the water meter of the structure having the coupling member and the backflow prevention jaw can be manufactured by interpolating the ruler.

The water meter provided herein requires a lot of hands and a lot of hands to screw the water pipes into separate inlets and outlets in order to couple with the water pipes, and to seal the water by using a packing means such as an O-ring. Coupling coupling part is formed in inlet and outlet of water meter to solve the problem of costly effort and cost, and it is possible to easily connect water meter and water pipe by providing the structure that pipe can be easily connected to coupling member without screwing. Provide the effect.

In addition, by providing a water meter having a coupling coupling portion and a backflow prevention jaw in the water meter provided as a stainless steel circular middle, it has the effect of providing a structure to prevent the reverse rotation of the meter reading part while reducing one hand. .

In addition, in order to provide a water meter having a structure with a coupling coupling part and a backflow prevention jaw in a stainless steel round core, a mold of a wax model can be designed / manufactured according to the requirements of the designer according to the requirements of the customer and the installation standard. In order to induce the flow of tap water, and to prevent the reverse flow of the meter reading part, the tap water inlet and outlet, bottom plate, meter support jaw, inlet partition wall, outlet partition wall, engaging jaw that the coupling member is caught, The mold is designed to obtain a wax product symmetrically in a ½ circle to form an inner core part with a structure having a support jaw and a watertight lid part for supporting the backflow prevention cap,

After forming a space to form the locking step and the support jaw inside the wax product of the symmetrical structure, a predetermined space is formed in the locking step and the support jaw in the process of abutting the wax products having the symmetrical structure with each other in a symmetrical structure. To form a space so that the coupling member and the backflow prevention cap are built, and then integrally joined in a circular shape,

After the mold is manufactured by using the circular wax product, the wax is removed, the mold is fired, the stainless alloy is melted and cast to obtain a stainless circular core, and then the coupling member and the backflow prevention cap manufactured in a separate process are made of stainless steel. By interpolating in the ruler, there is an effect of providing a manufacturing method capable of manufacturing a water meter of a structure having a coupling member and a backflow prevention jaw.

Claims (5)

In a water meter structure provided to measure the amount of water flowing by using the metering means built in the water meter, Receiving portion 15 for receiving the coupling member in the inner diameter of the inlet and outlet of the water meter is provided with a structure having a locking jaw 11, the snap ring recess groove 12 and the inclined jaw (13), The jaw coupling 20 is inserted after the packing member 21 and the elastic member 22 are inserted into 15, and the jaw coupling is formed by bending an end portion to the outer circumferential surface of the snap ring 25 spaced apart from the seating groove. A plurality of coupling holes 24 fitted into the 23 and formed on the outer circumferential surface thereof are provided with a coupling member having a structure in which the fixed jaw 26 is coupled to the water pipe 30 without screwing. Water meter. delete delete delete In the connection method of the water inlet and outlet, the inner diameter of the water pipe using a water meter with a coupling member, The water meter has an accommodating portion 15 for receiving the coupling member inwardly of the inlet and the outlet opening diameters, and after the packing member 21 and the elastic member 22 are inserted into the accommodating portion, the jaw coupling 20 is interpolated. The jaw coupling is configured such that the end ring is bent to the outer circumferential surface so that the snap ring 25 having a spaced shape is fitted into the seating groove 23, and the fixing jaw 26 is coupled to the plurality of coupling holes 24 formed as the outer circumferential surface. The coupling member of the water supply connection method, characterized in that the coupling structure is formed without a screw coupling portion when connecting with the water pipe.

Images