KR100346648B1 - Float Valve - Google Patents

Abstract

The present invention relates to a float valve for supplying water to a water storage device such as a water tank according to a water level change, blocking the water, and maintaining a specified water level.

The float valve of the present invention is a valve capable of opening and closing by rotating the valve shaft with an open / close lever within a predetermined angle, a link portion having a predetermined length coupled with the open / close lever, a float body having a shape different in size from the upper and lower sides, and the upper side And a float including coupling protrusions formed at both sides of the float body, a water inlet for injecting water into a predetermined portion of the upper body, and an upper and lower link coupling portions formed at the center of the upper float body upper surface and the bottom of the lower float body. An end portion of the portion and the upper or lower link engaging portion is proposed to be configured to enable float rotation within a predetermined angle.

According to the float valve of the present invention, water supply and interruption are precisely performed in a water tank by a ball valve having an open / close lever, so that loss of water can be suppressed and stable water supply and water level can be maintained.

Description

Float Valve

The present invention relates to a float valve for supplying water to a water storage device such as a water tank according to a water level change, blocking the water, and maintaining a specified water level. In particular, by combining a link member having a link length adjusting means and a float having a lower weight adjusting means to a valve which can be opened and closed by rotating the valve shaft with an opening / closing lever within a predetermined angle, it is possible to stably maintain proper water supply, shutoff, and level maintenance. The present invention relates to a float valve which can be carried out in a manner, which can suppress water loss by enhancing the precise opening of the valve and enhance durability.

Conventional float valves used in water tanks and the like are generally made of spherical floats and up-down flow valves using a plurality of link members.

1 is a schematic longitudinal cross-sectional view of the conventional float valve.

As shown in FIG. 1, a water supply pipe connecting portion 1 for screwing a water supply pipe to one end, a curved valve body 2, a valve seat 3 that is opened and closed according to vertical movement of the valve stem 13, and An outlet port 4 formed at the lower side of the valve stem 3, a link member 6 and 11, one end of which is fixed to a predetermined position of the valve body 2, and the link member 6 and 11; A link member 9 which hinges the other end at both ends, a hinge portion 5, 8, 10 and 12 for coupling the link members 6, 9 and 11 so as to interlock. One end is coupled to the float link rod coupling portion 7 formed at the end of the link member 6 coupled by the link member 6 and the hinge portion 8, and the float link rod coupling portion 7 and the other end thereof. The float link rod 14 is coupled to the spherical float 15, and the valve stem 13 is coupled to a predetermined position of the link member (11).

The conventional float of the above configuration is installed inside the tank not shown, when the water level of the water tank is lowered, the spherical float 15 floating on the water surface is lowered along the water surface and the link members 6, 9, 11 interlock with each other. When the valve stem 4 coupled to the link member 11 is lowered, the valve seat 3 is opened so that water falls through the discharge port 4 onto the water surface.

On the other hand, when the surface of the water tank rises, the spherical float 15 rises along the water surface, and the valve stem 4 rises due to the linkage of the link members 6, 9, 11. Closing the seat 3 blocks water inflow.

However, the conventional float valve is weak in the structure of the valve, a number of link members cause damage due to the frequent flow of the float, there is a problem of low structural durability, the hollow spherical float is severe due to the water surface vibration It is difficult to adjust the water level because it moves the valve stem to flow in unnecessary water, and the valve body on the hinge part 12 side and the opposite side is opened for the vertical movement of the link member 11 coupled to the valve stem. Therefore, when the water is discharged, the water is also ejected to the opened portion, which causes the wave to accelerate in the water surface of the tank.

In addition, the cylindrical valve stem 13 substantially blocks the discharge port 4, and the discharge path is formed by a plurality of discharge guide grooves (not shown) formed in the axial direction of the valve stem 13. This is drastically reduced and results in emission disturbances that delay the discharge time.

In the conventional float valve, the outlet port can be installed only in the downward direction. Therefore, when the foreign matter introduced through the pipeline accumulates on the upper surface of the valve stem 13 which is horizontally formed under the valve seat, the valve is not shut off to remove the foreign matter. There is a problem that water continues to leak until.

The present invention is to solve the problems of the prior art, an object of the present invention using a known valves that rotate the opening and closing the valve shaft to the open lever within a predetermined angle, more rigid and high precision float valve To provide.

It is another object of the present invention to provide a float valve having a float which is adaptable to water waves and which has adjustment means capable of responding to the falling weight and buoyancy of the float required to rotate the valve shaft of the known valves.

Still another object of the present invention is to provide a float valve having a preferable link angle so that the valve opening and closing due to the rise and fall of the float can be effectively operated with respect to the opening and closing lever connecting the valve shaft and the link member of the present invention. have.

It is another object of the present invention to provide a float valve having an adjusting means capable of shortening or extending a link length with respect to a link member connecting one side of the open / close lever of the present invention to a float.

As a technical concept for achieving the object of the present invention, in the present invention, a valve that can be opened and closed by an open / close lever within a predetermined angle, for example, a ball valve, a link portion having a predetermined length coupled with the open / close lever, and up and down Float body of different shape of side and coupling protrusions formed on both sides of the upper float body and a water inlet for injecting water into a predetermined portion of the upper body, and the upper and lower float body formed in the center of the upper and lower float body A configuration is provided having a float configured with a side link coupling portion, wherein the end portion of the link portion and the upper or lower link coupling portion are rotatably coupled within a predetermined angle.

1 is a schematic longitudinal cross-sectional view of a conventional float valve.

2 is a schematic perspective view of an embodiment of the present invention.

3 is a schematic cross-sectional view for explaining the configuration of an embodiment of the present invention.

Figure 4 is a perspective view of the float in different states in the embodiment of the present invention.

Figure 5 is a state diagram used by coupling the elbow to the valve outlet in the embodiment of the present invention.

6 is a front view of a state in which a ring expansion float is coupled to a float, which is a main part of the present invention.

FIG. 7 is a plan view of FIG. 6.

<Description of Major Symbols in Drawing>

1: water supply pipe connection 2: valve body

3: valve seat 4: outlet

5,8,10,12: hinge coupling part 6,9,11: link member

7: Float link rod coupling part 13: Valve stem

14: Proto Link Rod 15: Spherical Float

20: valve 21: valve body

22: inlet 23: outlet

24: opening and closing lever 25: channel nut

6: stopper 27: first locking jaw

28: second locking jaw 29: discharge pipe

30 link portion 31 link member

32: length adjusting hole 33: first fastening bolt

40: float 41: upper float body

42: lower float body 43: the first engaging projection

44: water injection hole 45: the first link coupling portion

46: second link coupling portion 50: guide wall

51: rotation limit locking jaw 52: bolt fastening

53: 2nd fastening bolt 60: elbow

70: expansion float 71: upper expansion float body

72: lower extension float body 73: the second engaging projection

74: coupling groove

Hereinafter, the configuration and operation of the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view showing the overall configuration of an embodiment of the present invention.

3 is a schematic longitudinal cross-sectional view for explaining the structure of the embodiment of the present invention shown in FIG.

As shown in FIG. 2, a valve capable of opening and closing by rotating a valve shaft (not shown) with the opening / closing lever 24 within a predetermined angle, for example, a valve 20 such as a ball valve, and a surface wave Float 40 including a water inlet 44 to suppress the unnecessary flow of the float according to the adjustment and the weight required to rotate the valve shaft (not shown), the valve 20 and the float 40 is coupled It consists of a link unit 30 for the purpose.

Referring to FIG. 3, the valve 20 includes a valve body 21 having a valve stem (not shown) and a valve seat (not shown) configured therein, and the valve body 21. A stopper (26) having an inlet port (22) for connecting a water supply pipe and an outlet port (23) for connecting a discharge pipe (29) to an upper end and a lower end of the valve body, and formed at a predetermined position outside the valve body (21). The first and second locking jaws 27 and 28 having one end of the rotation limiting function are formed in the valve shaft, and the valve shaft (not shown) can be interlocked with a valve stem (not shown) installed inside the valve body 21. When the bolt is formed at the upper end and the fastening nut 25 is fixed, the other end of the first fastening bolt 33 to one or more of the plurality of length adjusting holes 32 formed on one side of the link member 31 It consists of a locking lever 24 is formed with one or more bolting holes (not shown) to be coupled.

In addition, the link portion 30 is a link member 31 of a predetermined length, a plurality of length adjusting holes 32 formed inward from one side, and the other end of the first link coupling portion 45 to the second link coupling A bolt fastening hole (not shown) may be rotatably coupled to the portion at a predetermined angle.

In addition, the float 40 has a different size of the upper and lower float body 41, 42, for example, the upper float body 41 has a shorter height than the lower float body 42 diameter This slightly larger shape is formed so that the upper and lower float bodies are integrally formed. In the center of the upper float body 41 is formed a first link coupling portion 45 to which the link member 31 can be rotatably coupled within a predetermined angle, the lower center of the lower float body 42 The second link coupling portion 46 is provided to be coupled to the link member 31 with the float body 41 vertically. In addition, a water injection hole 44 for injecting water into the float body 41 is provided at a position spaced apart from the first link coupling portion 45 by the upper float body 41. At a predetermined position of the side, a plurality of first coupling protrusions 43 are formed.

A pipe extending from the discharge port 23 to a predetermined position may be configured to extend the discharge pipe 29 as necessary.

Shown in the dashed circle in FIG. 2 is a detailed enlarged view of the first link coupling portion for coupling the link member 31 and the float 40.

The front and rear spaced apart a predetermined distance is formed a guide wall 50 is provided with a bolt fastening hole 52 at a predetermined position, the guide wall to limit unnecessary rotation in the rise and fall of the float body 40 50 is a configuration in which the rotation limit locking jaw 51 made of 'Ｖ' shaped inclined surface along the inner surface is formed integrally.

The state in which the first link coupling portion 45 and the link member 31 of the configuration are coupled to each other is inserted into an end portion of the link member 31 between the front and rear guide walls 50 so that the rotation limit locking jaw ( The float fastening hole 52 formed in the guide wall 50 and the bolt fastening hole (not shown) of the link member are aligned with each other so that the float 40 can rotate within a predetermined angle. 2 is coupled to the fastening bolt (53).

The operation according to the configuration of the embodiment of the present invention will be described.

First, the assembly method according to the embodiment of the present invention has one end inserted into the opening and closing lever 24 of the valve shaft (not shown) having a shape almost close to an ellipse. The opening and closing lever 24 having a fastening hole (not shown) corresponding to the shape of the valve is provided between the first and second locking jaws 27 and 28 of the opening and closing lever 24. Inserted into the valve shaft (not shown) in position and coupled to the fastening nut (25).

The opening and closing lever 24 is one or more bolted fastening holes (not shown) formed at the other end and a plurality of length adjusting holes 32 formed at one side of the link member 31 of the link portion 30 in a predetermined position Combine with one or more first fastening bolts (33). In this case, the interval between the bolt fastening hole (not shown) formed in one end of the opening and closing lever 24 and the plurality of length adjusting holes 32 formed in one end of the link member 31 are configured to coincide with each other. According to the structure of the water tank and the conditions of use, the link distance between the valve 20 and the float 40 is adjusted by coupling the link member 31 to the opening and closing lever 24 by moving the length adjusting hole 32. Can be.

Coupling of the float 40 and the link portion 30 is a first link coupling portion formed on the upper surface of the float 40 to the end of the link member 31 is formed with bolt fastening holes (not shown) at one end ( The float 40 is rotatably inserted within a predetermined angle between the rotation limiting jaw 51 of the 45 and is coupled to the second fastening bolt 53.

In the assembled state as described above, when the opening / closing member 24 rotates downward as the float 40 descends, the second latching of the opening / closing lever 24 is stopped on the bottom surface of the stop protrusion 26 of the valve 20. The inner side of the jaw 28 comes into contact with it so that it can no longer be rotated. Since the valve stem (not shown) interlocked when the opening / closing lever 24 is rotated downward, the valve is opened so that water is discharged to the outlet 23 and stored in the tank.

As water flows through the open valve, the water level of the water tank is gradually increased, so that the float 40 floating on the water surface rises along the water surface, and the opening / closing lever 24 rotates upward in conjunction with the water. When the open / close lever 24 rotates upward, the valve stem (not shown) is gradually closed according to the rotational angle of the open / close lever 24 so that the first latch of the open / close lever 24 is caught on the upper surface of the stopper 26. When the jaw 27 comes into contact, the valve closes completely to stop the flow of water and to maintain it.

Since the float 40 has an upper and lower float body 41 and 42 having an upper end and a small lower end, a portion of the lower plane of the lower float body 42 is immersed below the surface of the water, so that even at the surface wave velocity It acts to maintain stability, and by injecting water through the water inlet 44 formed on the upper surface of the upper float body 41, the weight of the float body 42 in accordance with the falling rotational resistance of the valve By corresponding to the amount of water injected into the water inlet 44 can be maintained in the optimum opening and closing of the valve. In addition, since water is stored at the bottom of the lower float body 42, the center of gravity of the float is maintained at the bottom so that the flow of the float is minimized even for the water surface waves of the tank.

The valve 20 has a high durability and precision of opening and closing, and a valve capable of opening and closing by rotating the valve shaft with the opening / closing lever 24 within a predetermined angle, for example, a ball valve, a cock valve, Valves such as butterfly valves and open / close cocks for washbasins with plate seats (in this case, they are mixed for both cold and hot water but can be converted to cold water systems and float valve structures) Can be used.

In order to shorten or increase the distance between the valve 20 and the float 40 in accordance with the structure and use conditions of the water tank, the first fastening bolt 33 coupling the open / close lever 24 and the link member 31. After the separation, after adjusting the appropriate distance bolting hole (not shown) of the opening and closing lever 24 and the length adjusting hole 32 of the link member 31 is coupled to the first fastening bolt 33 This can be achieved by.

In the embodiment in which the valve 20 and the float 40 are connected, the opening and closing lever 24 coupled to the valve 20 and the separate link member 31 are used in combination, but as another embodiment of the present invention. The opening and closing lever 24 and the link member 31 having a predetermined link angle are manufactured integrally, and one end is coupled to the valve 20, and the other end is coupled to the float 40.

Further, in another embodiment of the present invention, the float 40 does not form the water inlet 44, and the weight of the float is manufactured in accordance with the falling resistance of the valve, so that the float always operates and the valve is opened and closed. Present a float valve that can be driven.

Figure 4 shows another use state for the embodiment of the present invention shown in FIG. The float 40 coupled to the link member 31 is provided in a vertical form in response to the structure and use conditions of the water tank.

That is, the link member 31 is coupled to the second link coupling portion 46 formed at the center of the lower surface of the lower float body 42. In this case, the upper surface of the float 40 is rearward when the rear surface is lowered. Is fastened to face.

5 is a further embodiment of the present invention, the valve 20 is positioned horizontally toward the ground, the discharge pipe that can extend into the elbow 60 and the water surface in the outlet port 23 of the valve 20 It is a block diagram of the state which combined (29). Embodiments of this configuration are useful when the water supply pipe from the outside needs to be horizontally connected and directly connected to the inlet port 22.

FIG. 6 relates to the portion of the float 40 in the embodiment of the present invention, which shows a state in which the expansion float 70 is coupled to the upper float body 41 and the lower pull body 42.

The expansion float 70 includes an upper expansion float body 71 having a height and an insertion diameter corresponding to an upper float body 41 of the float 40, and a height and insertion corresponding to the lower float body 42. A lower expansion float body 72 having a diameter is integrally formed, and a through hole is formed in which an inner circumferential surface is capable of receiving the outer circumferential surface of the float 40 in close proximity, and the expansion float is connected to the float body 41. A plurality of first coupling protrusions 43 are formed on the outer circumferential surface of the upper float body 41 so as to be firmly inserted into the upper float body 41, and the first coupling protrusion 43 is inserted into the inner circumferential surface of the upper expansion float 71. A plurality of coupling grooves 74 are formed at the position.

The outer circumferential surface of the upper expansion float body 71 is a structure in which a plurality of second coupling protrusions 73 are formed to be coupled to another expansion float.

The expansion float 70 may be expanded or reduced in response to the buoyancy conditions required for the float valve of the present invention. For example, the valve closing buoyancy required for the float valve of the present invention may be the float 40 of FIG. 2. If it is difficult to act with only), when the float needs to be adapted to it and configured to be large, additional expansion floats 70 can be combined to adapt to the required buoyancy. Therefore, the buoyancy of the float can be adjusted and used according to the buoyancy requirements by combining the second and third expansion floats of the same structure that can accommodate the outer circumferential surface of the expansion float 70.

In the embodiment of the float which is the main part of the present invention, the shape of the float 40 is appropriately cylindrical, and the expansion float 70 is suitably a ring shape for receiving the float 40, but is not limited to the shape. It is possible to present another type of float, such as a square, and an extended float corresponding thereto in another embodiment, and for the extended float 70 coupled to the float 40, the coupled state is a state in which the float is accommodated. Although presented in the above embodiment, a removable expansion float combining one or more at a predetermined position of the float 40 may be presented in another embodiment.

In embodiments, a plurality of first coupling protrusions 43 may be formed on an outer circumferential surface of the upper float body 41, and a plurality of first coupling protrusions 43 may be inserted into an inner circumferential surface of the upper expansion float 71. Although the coupling groove 74 is formed to provide the coupling of the float 40 and the expansion float 70, the float and the expansion float may be manufactured by a press-fit insertion structure without forming the coupling protrusion and the coupling groove in the float. It may be.

In the embodiments described above with respect to the valve 20 having a screwing inlet 22 and outlet 23, it is of course also applied to the valve for flange coupling.

The float of the present invention is applied to a ball valve, a cock valve, a butterfly valve, and a float valve applied to an open / close cock which is used for a wash basin having a plate seat type. Although described above, it can also be used in a conventional float valve for the desired buoyancy and stable operation of the float.

In addition, although the water inlet 44 is formed on the upper surface of the float as a means for adjusting the weight of the float 40 described in the embodiment of the present invention, other weight adjusting means may be added, for example, without forming the water inlet. Embodiments of floats provided with means and the like can be presented.

FIG. 7 is a plan view of FIG. 6, showing an embodiment in which the cylindrical float 40 and the circumferential ring-shaped expansion float 70 are constructed.

As described above, a valve which can be opened and closed by an opening / closing lever within a predetermined angle, for example, a valve such as a ball valve, a link portion of a predetermined length coupled to the opening / closing lever, and a shape different in size from the upper and lower sides Float provided with a float body and a coupling protrusion formed on both sides of the upper float body, and a water inlet for injecting water into a predetermined portion of the upper body, and an upper and lower link coupling portions formed at the center of the upper float body and the bottom of the lower float body. And an expansion float having a plurality of engaging grooves formed on the inner circumferential surface and a plurality of engaging projections formed on the outer circumferential surface, and allowing the end of the link portion and the upper or lower link engaging portion of the float to rotate within a predetermined angle. By presenting the float valve of the configuration coupled to the fastening bolt,

According to the float valve of the present invention, it is possible to suppress water loss by precisely supplying and blocking water to the water tank by a ball valve having an open / close lever, and to extend the discharge pipe from the valve outlet to the water surface of the water tank, Side effects of the float can be reduced, and the proper buoyancy and falling weight of the float can be easily adjusted to maintain a stable water supply and shutoff level,

In addition, since the length of the link portion connecting the valve and the float can be adjusted, it can be used to adapt to various water tanks and link driving environments.

In addition, by providing a means for coupling the link portion and the float on both sides of the upper and lower surfaces of the float, there is an effect that can be diversified in the use state of the float valve,

In addition, by forming a water inlet in the float, by injecting water in response to the valve rotation lowering resistance according to the type of valve has the effect of optimizing the operating state of the valve and the float by adjusting the weight of the float,

In addition, through the coupling protrusion formed on the outer peripheral surface of the float and the coupling groove formed on the inner peripheral surface, the expansion float can be firmly coupled to the float in multiple stages, so that the float can be easily expanded or reduced according to the buoyancy of the required valve. Depending on the buoyancy to be applied there is an effect that does not need to separately manufacture a float suitable for it.

Claims (7)

In the float valve which supplies water to the water storage device such as water tank, shuts off the water and maintains the specified water level. A valve having an opening / closing lever capable of opening and closing the valve within a predetermined angle; A link member coupled to the open / close lever and provided with means for varying the link length; A float coupled to the link member so as to be rotatable within a predetermined angle; The float is formed integrally with the upper and lower float body having a predetermined height, the float valve, characterized in that the diameter of the upper float body is configured larger than the diameter of the lower float body. The method according to claim 1, The link member and the opening and closing lever is formed at a predetermined interval a plurality of link length adjustment holes from one end is fastened with a bolt overlapping each other, The opening and closing lever is a float valve, characterized in that configured to open and close the valve in accordance with the vertical movement of the float. The method according to claim 1, The float includes a first link coupling portion for rotatably coupling the link member to a center of an upper surface of the upper float body, and a second link for coupling the link member to a center of a lower surface of the lower float body. A link coupling part, The first link coupling portion is a float valve, characterized in that the rotation limit means for preventing the float from rotating more than a predetermined angle in the state that the link member is engaged. The method according to claim 1, And said float further comprises means for injecting water therein for adjustment of the weight of said float at a predetermined position of said upper float body. In the float valve of claim 1, And an expansion float capable of receiving a coupling with the float in close proximity to an outer circumferential surface of the float. The method according to claim 5, The float has a plurality of coupling protrusions formed on at least one outer circumferential surface of the upper float body and the lower float body, and a plurality of coupling grooves and outer circumferential surfaces that can accommodate the plurality of coupling protrusions on the inner circumferential surface of the expansion float. A coupling valve is formed, the float valve, characterized in that the coupling projection of the float is inserted into the coupling groove of the expansion float is coupled. The method according to claim 1, The float valve further comprises a detachable means for attaching a weight to adjust the weight.