KR20110007424U - Valve for fire hydrant - Google Patents

Abstract

According to the present invention, when the rod 40 and the valve body 30 are assembled, the first threaded thread 33a of the upper rod 33 is engaged with the first threaded thread groove 40a of the rod 40. After passing through, it is positioned in the first clearance hollow groove 40b so as to complete the assembly with each other, or the second through screw thread 40c of the rod 40 is the second through screw groove 33b of the upper rod 33. After passing through while being joined to the second clearance hollow groove (33c) to be able to complete the assembly between each other, as well as the assembly and the need for a separate part, such as a snap ring, the length of the upper rod 33 is reduced The present invention relates to a fire hydrant valve which can guarantee productivity by ensuring the productivity and eliminating the mutual separation.

Description

Hydrant valve {VALVE FOR FIRE HYDRANT}

The present invention relates to a fire hydrant valve, and more particularly, to a fire hydrant valve that can simplify the assembly of the rod and the valve body, increase productivity, and ensure safety.

In general, a fire hydrant is installed in a water tank or a water tank of a high-rise building and is provided with a valve (pre-hydraulic valve) for supplying and blocking high pressure water so as to quickly extinguish fire in the event of fire.

1 is a cross-sectional view showing a pre-digestion valve disclosed in the first pre-application 20-1999-0004601. As shown in Fig. 1, the pre-digestion valve disclosed in the first preliminary application includes a valve case 4 having a valve seat 3 and an opening and closing valve valve 3 between the inlet 1 and the outlet 2. (5), a lid (6) coupled to the upper portion of the valve case (4), a valve rod (7) screwed to the lid (6) to lift the valve body (5), and a top of the valve rod (7) It comprises a handle 8 coupled to the stage to rotate the valve rod (7). The bottom of the valve body 5 is equipped with a packing 9 which is in close contact with the valve seat 3, and at this time, the valve body 5 is provided at the bottom of the valve rod 7 to prevent wear of the packing 9. Is fastened rotatably, the O-ring 10 is mounted to the upper inner diameter of the lid (6). In addition, the valve body 5 forms a locking jaw 7a at the lower end of the valve rod 7, and a female screw is formed at the upper inner diameter of the valve body 5 to assemble the connecting nut 11 to the female thread. It is done. Then, the O-ring 10 is inserted into the upper inner diameter of the lid 6, and the cap nut 13 is fastened in a state where the washer 12 is placed on the upper portion of the ion ring 10 again. In addition, the pre-digestion valve according to the first application has a structure in which the screw thread 7b of the valve rod 7 and the screw groove 6b formed in the support pipe 6a inside the lid 6 are screwed together. Fig. 2 is a cross-sectional view showing a pre-digestion valve disclosed in the second pre-application 10-2000-0073596. The pre-digestion valve disclosed in the second preliminary application includes a valve case 10, a lid 100, a valve body 200, a valve rod 300, and a handle 50, as shown in FIG. 2. The valve case 10 is provided with an inlet 1 through which the fluid can enter and exit, an outlet 3, and a valve seat 5 on which the valve body 200 is seated. Lid 100 is formed integrally with a cap 130 for mounting one or more lid body 110 and the sealing O-ring 131 screwed to the opening formed in the upper portion of the valve case 10. A support member 111 into which the valve rod 300 is inserted is formed at the lower portion of the lid body 110, and an internal thread 112 is formed inside the support member 111 and a male screw formed on the outer circumferential surface of the valve rod 300. 312 and the screw is assembled to serve to support and transfer the valve rod (300). Sealing O-ring 113 is mounted on the outer circumferential surface of the lid body 110 is screwed with the valve case 10, the cap 130 is formed on the upper portion of the lid body 110, O-ring 131 The groove 133 is formed for the secure mounting of the < RTI ID = 0.0 > 1, < / RTI > The valve body 200 is in the shape of a regular disk for opening and closing the valve seat 5, and one surface of the valve body 200 is formed with a guide member 210 extending vertically on the surface thereof, and on the other side of the valve body 200. A packing 900 such as rubber is molded and fixed. A guide groove 310 is formed at the tip of the valve rod 300 so that the guide member 210 of the valve body 200 can be inserted and slide, and the depth of the guide groove 310 is greater than the length of the guide member 210. Is formed. The rear end of the valve rod 300 is projected to the outside of the valve case 10 through the lid 100, the handle 50 for operating the lifting of the valve rod 300 is installed. Opening and closing of the valve seat 5 is made by raising and lowering the valve rod 300. However, since the guide groove 310 is formed in the pre-digestion valve disclosed in the second preliminary application so that the guide member 210 of the valve body 200 is simply inserted at the front end of the valve rod 300 so as to slide the handle 50. Even if the valve rod 300 is rotated to raise the valve rod 300, the force that the valve body 200 tries to lower in the direction of the valve seat 5 due to gravity is generated, which causes a problem of reducing the lifting force of the fluid through the inlet 1. In order to prevent the valve body 200 from escaping from the valve rod 300, the depth of the guide groove 310 should be increased while the length of the guide member 210 should be reversed so that the productivity of the guide member 210 can be relatively extended. It has the disadvantage of undermining deterioration. In addition, when the valve rod 300 and the valve body 200 are fixed to each other as a valve that is generally used, the problem that the packing 900 is rubbed on the valve seat 5 only when the handle 50 is rotated can be avoided. And [packing 900 wear], the guide member 210 of the valve body 200 should be free to move in the guide groove 310 of the valve rod 300 to prevent this phenomenon, the coupling structure gas snap ring ( (Not shown) or stopper coupling between each other (not shown), which causes problems in terms of assembly and productivity, as well as safety.

An object of the present invention is to provide a hydrant valve that can ensure the assembly, productivity and safety.

The purpose of the present invention is to assemble the rod and valve body, so that the first pass screw thread of the upper rod is placed in the first clearance hollow groove after being passed while being engaged with the first pass screw groove of the rod, It is to provide a hydrant valve to ensure the stability.

The purpose of the present invention is to assemble the rod and valve body, so that the second pass screw thread of the rod is fitted into the second pass screw groove of the upper rod and then placed in the second clearance hollow groove so that It is to provide a hydrant valve to ensure the stability.

The present invention for achieving the above object,

A housing having an upper opening, a lower inlet with a shielding jaw and a side outlet, a hollow cap coupled to the upper opening with a lifting screw groove, a valve body for opening and closing the shielding jaw, and matching with the lifting screw groove In the hydrant valve comprising a rod having a lifting screw thread to be coupled to the handle for lifting the valve body,

The rod in turn comprises a first through-screw groove and the first clearance hollow groove in the upward direction from the bottom center,

The valve body has a disk having a disc-shaped packing detachably attached to the shielding jaw, and a first passage which is positioned in the first clearance hollow groove after being passed while being extended from an upper portion of the disk to be engaged with the first passage screw groove. Including the upper rod provided with a thread is a basic feature of the technical configuration.

The present invention for achieving the above object,

A housing having an upper opening, a lower inlet with a shielding jaw and a side outlet, a hollow cap coupled to the upper opening with a lifting screw groove, a valve body for opening and closing the shielding jaw, and matching with the lifting screw groove In the hydrant valve comprising a rod having a lifting screw thread to be coupled to the handle for lifting the valve body,

The valve body includes a disk having a disc-shaped packing detachably attached to the shielding jaw, and an upper rod extending upwardly from an upper portion of the disk and having a second through screw groove and a second clearance hollow groove in a downward direction from a center of an upper end thereof. Including,

The rod is characterized in that it comprises a second passage thread which is positioned in the second clearance hollow groove after being passed while being engaged with the second passage thread groove on the lower outer periphery thereof.

The present invention is to assemble the rod and the valve body, the first pass screw thread of the upper rod is fitted into the first pass screw groove of the rod and then placed in the first clearance hollow groove so as to complete assembly with each other. By doing so, as well as assembling, there is no need for a separate part, such as a snap ring, and the length of the upper rod can be reduced, thereby ensuring productivity and securing safety by eliminating separation between each other.

The present invention has the effect that the diameter of the first clearance hollow groove is relatively larger than the diameter of the first passage thread groove to ensure free movement when the first passage thread is positioned in the first clearance hollow groove.

The present invention is to assemble the rod and the valve body, so that the second pass screw thread of the rod is engaged with the second pass screw groove of the upper rod and then placed in the second clearance hollow groove so as to complete assembly with each other. By doing so, as well as assembling, there is no need for a separate part, such as a snap ring, and the length of the upper rod can be reduced, thereby ensuring productivity and securing safety by eliminating separation between each other.

The present invention has the effect of ensuring a free movement when the diameter of the second clearance hollow groove is relatively larger than the diameter of the second clearance screw groove when the second passage thread is located in the second clearance hollow groove.

The present invention has an effect of preventing the deformation of the disk in advance even if the pressure of the fluid through the lower inlet is increased by providing a reinforcement protrusion on the upper portion of the disk.

1 is a cross-sectional view showing a hydrant valve disclosed in the first application.
2 is a cross-sectional view showing a hydrant valve disclosed in the second prior application.
3 is an exploded perspective view showing a hydrant valve according to the first embodiment of the present invention.
4 is a cross-sectional view showing a hydrant valve according to a first embodiment of the present invention.
Figures 5a and 5b is an exploded perspective view and main part cross-sectional view showing the hydrant valve according to the first embodiment of the present invention.
6a and 6b is an exploded perspective view and main part cross-sectional view showing a hydrant valve according to a second embodiment of the present invention.

Preferred embodiments of the hydrant valve according to the present invention will be described with reference to the drawings, there may be a plurality of embodiments, through such embodiments to better understand the purpose, features and advantages of the present invention do.

The hydrant valve according to the first embodiment of the present invention has a housing having an upper opening 11, a lower inlet 12 having a shielding jaw 12a, and a side outlet 13, as shown in FIGS. 3 to 5b. 10, a hollow cap 20 coupled to the upper opening 11 and having a lifting screw groove 21, a valve body 30 for opening and closing the shielding jaw 12a, and a lifting screw groove 21 And a rod 40 coupled to the handle 50 to elevate the valve body 30 while having an elevating thread 41 corresponding thereto.

By such a configuration, the rod 40 is supported by the hollow cap 20 in accordance with the forward and reverse rotation of the handle 50, and is interlocked with the engagement of the lifting screw groove 21 and the lifting screw thread 41 so that the valve body 30 is supported. By raising and lowering the opening and closing the shielding jaw (12a) to control the passage of the fluid through the lower inlet 12 to determine whether to discharge to the side outlet (13).

At this time, the rod 40 includes the first through screw groove 40a and the first clearance hollow groove 40b in the upward direction from the bottom center thereof, and the valve body 30 is attached to and removed from the shielding jaw 12a. And a disk 31 having a disc-shaped packing 32, which extends from an upper portion of the disk 31 and is engaged with the first through-screw groove 40a and then positioned in the first play hole hollow groove 40b. The upper rod 33 provided with the 1st threaded thread 33a is included.

When the rod 40 and the valve body 30 are to be assembled, the first through screw thread 33a of the upper rod 33 passes through while being engaged with the first through screw groove 40a of the rod 40. Located in the first clearance hollow groove (40b) to be able to complete the assembly between each other, once the first through-thread thread (33a) is located in the first clearance hollow groove (40b), the first passage screw groove (40a) is By acting as a kind of stopper, it is possible to thoroughly prevent the phenomenon of the upper rod 33 and the rod 40 to be separated, and furthermore, the first threaded thread 33a is free to move in the first clearance hollow groove 40b. (Because they are not engaged with each other), even when the rod 40 is interlocked with each other in the forward and reverse rotation of the handle 50, the valve body 30 is not given any rotational force so that the friction between the shielding jaw 12a and the valve body 30 can be reduced. The phenomenon such as this can be eliminated.

Here, when the diameter of the first clearance hollow groove 40b is made larger than the diameter of the first passage thread groove 40a, the first passage thread 33a is positioned in the first clearance hollow groove 40b. It is desirable to ensure free movement.

The hydrant valve according to the second embodiment of the present invention has an upper opening 11, a lower inlet 12 having a shielding jaw 12a, and a side surface as shown in FIGS. 6A and 6B (see FIGS. 3 and 4). A housing 10 having an outlet 13, a hollow cap 20 coupled to the upper opening 11, and having a lifting screw groove 21, and a valve body 30 for opening and closing the shielding jaw 12a. And a rod 40 coupled to the handle 50 to elevate the valve body 30 while having the elevating screw thread 41 corresponding to the elevating screw groove 21.

By such a configuration, the rod 40 is supported by the hollow cap 20 in accordance with the forward and reverse rotation of the handle 50, and is interlocked with the engagement of the lifting screw groove 21 and the lifting screw thread 41 so that the valve body 30 is supported. By raising and lowering the opening and closing the shielding jaw (12a) to control the passage of the fluid through the lower inlet 12 to determine whether to discharge to the side outlet (13).

At this time, the valve body 30 extends from the upper portion of the disk 31 having a disk-shaped packing 32 detachable to the shielding jaw (12a), and the upper portion of the disk 31 in a downward direction from the center of the upper end And an upper rod 33 which has a screw groove 33b and a second clearance hollow groove 33c in turn, and the rod 40 is passed through while being engaged with the second through screw groove 33b at its lower periphery. And a second through screw thread 40c positioned in the second clearance hollow groove 33c.

When assembling the rod 40 and the valve body 30, after passing through the second threaded thread 40c of the rod 40 to the second threaded thread groove 33b of the upper rod 33, Located in the second clearance hollow groove 33c to be able to complete the assembly between each other, once the second through-thread thread 40c is located in the second clearance hollow groove 33c, the second passage screw groove 33b is By acting as a kind of stopper, it is possible to thoroughly prevent the phenomenon of the rod 40 and the upper rod 33 to be separated, and furthermore, the second threaded thread 40c can freely move in the second clearance hollow groove 33c. (Because they are not engaged with each other), even when the rod 40 is interlocked with each other in the forward and reverse rotation of the handle 50, the valve body 30 is not given any rotational force so that the friction between the shielding jaw 12a and the valve body 30 can be reduced. The phenomenon such as this can be eliminated.

Here, the diameter of the second clearance hollow groove 33c is made larger than the diameter of the second passage thread groove 33b so that the second passage thread 40c is free when the second clearance hollow groove 33c is positioned in the second clearance hollow groove 33c. It is desirable to ensure movement.

On the other hand, it may include a reinforcing projection (31a) protruding radially on the top of the disk 31.

When the reinforcing protrusion 31a is provided on the upper portion of the disk 31, even if the pressure of the fluid through the lower inlet 12 is increased, the deformation of the disk 31 may be prevented.

Furthermore, the disk 31 includes a bolted under rod 34 extending downward from its lower center, and the disc-shaped packing 32 includes a coupling hole 32a fitted to the bolted under rod 34. And a washer 36 and nut 35, which are assembled to the bolted under rod 34 to fix the disc-shaped packing 32 to the disc 31.

Disc-shaped packing 32 can be freely assembled to the lower portion of the disk 31, as well as the coupling hole 32a of the disc-shaped packing 32 to the bolt-shaped under rod 34 as in the present invention And assembling with the washer 36 and the nut 35.

The present invention is utilized in the field of fire hydrant valve to supply and shut off the high pressure water in case of fire.

10 housing 11 upper opening
12: lower inlet 12a: shielding jaw
13: side outlet 20: hollow cap
21: lifting screw groove 30: valve body
31 disc 31a reinforcement protrusion
32: disc packing 32a: coupling hole
33: upper rod 33a: first thread passing
33b: 2nd through thread groove 33c: 2nd clearance hollow groove
34: bolt type under rod 35: nut
36: washer 40: rod
40a: 1st through thread groove 40b: 1st clearance hollow groove
40c: 2nd through thread 41: Lifting thread
50: handle

Claims (6)

A housing (10) having an upper opening (11), a lower inlet (12) with a shielding jaw (12a), and a side outlet (13), and a lifting screw groove (21) coupled to the upper opening (11). It is coupled to the handle 50 while having a hollow cap 20, the valve body 30 for opening and closing the shielding jaw (12a), and the elevating screw thread 41 is matched with the elevating screw groove 21 In the hydrant valve comprising a rod 40 for elevating the valve body 30,
The rod 40 sequentially includes a first through screw groove 40a and a first clearance hollow groove 40b in an upward direction from the bottom center thereof.
The valve body 30 has a disk 31 having a disc-shaped packing 32 attached to and detached from the shielding jaw 12a, and extends upwardly from an upper portion of the disk 31 so that the first through screw groove 40a. A hydrant valve comprising an upper rod (33) having a first threaded thread (33a) positioned in the first clearance hollow groove (40b) after being passed through the fitting. The method of claim 1,
The diameter of the first clearance hollow groove (40b) is a hydrant valve, characterized in that larger than the diameter of the first through-screw groove (40a). A housing (10) having an upper opening (11), a lower inlet (12) with a shielding jaw (12a), and a side outlet (13), and a lifting screw groove (21) coupled to the upper opening (11). It is coupled to the handle 50 while having a hollow cap 20, the valve body 30 for opening and closing the shielding jaw (12a), and the elevating screw thread 41 is matched with the elevating screw groove 21 In the hydrant valve comprising a rod 40 for elevating the valve body 30,
The valve body 30 has a disk 31 having a disc-shaped packing 32 attached to and detached from the shielding jaw 12a, and extends upwardly from an upper portion of the disk 31 and moves downwardly from a center of an upper end thereof. An upper rod 33 which sequentially has a passing screw groove 33b and a second clearance hollow groove 33c,
The rod 40 includes a second pass screw thread 40c positioned in the second clearance hollow groove 33c after being passed through the second pass screw groove 33b on the outer circumferential edge thereof. Fire hydrant valve. The method of claim 3, wherein
The fire hydrant valve, characterized in that the diameter of the second clearance hollow groove (33c) is relatively larger than the diameter of the second through screw groove (33b). The method according to any one of claims 1 to 4,
Hydrant valve, characterized in that it comprises a reinforcing projection (31a) protruding radially on top of the disk (31). The method according to any one of claims 1 to 4,
The disk 31 includes a bolted under rod 34 extending downward from its lower center,
The disc-shaped packing 32 includes a coupling hole (32a) that is fitted to the bolt-shaped under rod 34,
And a washer (36) and a nut (35) which are assembled to the bolted under rod (34) to secure the disc-shaped packing (32) to the disc (31).

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