KR102185188B1 - Rotatable ground type outdoor hydrant - Google Patents

Abstract

The present invention relates to a rotatable above-ground outdoor fire hydrant, allowing a direction of an outlet to which a fire hose is connected to be freely changed to prevent the fire hose from being bent. The fire hydrant comprises a fire hydrant body, a disk valve (60), a valve support, and a lifting controller.

Description

Rotatable ground type outdoor fire hydrant{ROTATABLE GROUND TYPE OUTDOOR HYDRANT}

The present invention relates to a rotatable ground type outdoor fire hydrant that prevents the fire hose from bending because the direction of the discharge port to which the fire hose is connected is free.

As a ground-type outdoor fire hydrant having a discharge port to which a conventional fire hose is connected, a known patent document (Korean Patent Publication No. 10-2013-0016486) is proposed.

As shown in Figs. 7 to 9, the above-ground outdoor fire hydrant in the patent document is vertically connected to the water supply pipe buried underground, the connection pipe 101 and the valve housing 102, and a part of it is open to the ground. Will be maintained.

That is, the ground type outdoor fire hydrant is composed of a valve housing 102 connected to the connection pipe 101 and a vertical drain pipe 103 installed in a vertical direction to the valve housing 102, and the valve housing 102 Inside the valve 100 is installed by the guide ring 200, and at the same time, in the vertical drain pipe 103, a rod-shaped valve seat 104 that opens and closes the valve 100 to the outside is longitudinally It is installed as.

In addition, a connector 105 for connecting a fire hose is formed at the top of the vertical drainage pipe 103 to be in communication with the inside and is configured to be opened and closed by a stopper 106, and connected to the upper end of the valve seat 104 at the center of the upper end. It is installed in a form that is protected by the protective cap 108 for the operation lever 107 to rotate it.

As shown in FIGS. 8 and 9, the valve 100 is formed in a disc body, and a guide stand 110 is integrated with the guide ring 200 on both sides to protrude upwardly. A shaft hole 120 to which the valve stem 104 is fastened and fixed is formed in the center, and a fastening groove 130 to which the packing 300 is fastened is formed on the outer periphery.

The guide ring 200 has a screw formed on the outer periphery and is screwed into the valve housing 102, and guide protrusions 210 are formed to protrude inwardly on both sides thereof, and the guide base 110 of the valve 100 ) Has a configuration in which the guide groove 111 is combined and assembled.

In addition, a separate packing 300 made of a rubber material is fastened to the fastening groove 130 formed on the outer periphery of the valve 100.

These conventional ground-type outdoor fire hydrants have the following problems.

First, since the vertical drain pipe 103 is fixed, the connector 105 is also fixed, and when attempting to change the direction, there are many difficulties in the fire suppression work due to bending of the fire hose.

For this reason, in the vertical drainage pipe 103 composed of the middle body and the upper body, there is a frequent problem of leakage due to packing damage during the direction change process of loosening and tightening the flange joint of the upper body with respect to the middle body.

Second, since the guide ring 200 is screwed to the valve housing 102, to maintain the valve 100, unfasten and lift the vertical drain pipe 103 from the valve housing 102 by digging the ground and maintain it. You have to pay for it. Therefore, it takes a lot of cost and time.

Korean Patent Application Publication No. 10-2013-0016486

In order to solve the above-described problem, the present invention is to provide a ground type outdoor fire hydrant that can be rotated not only to prevent the fire hose from being bent due to the freedom to change the direction of the discharge port to which the fire hose is connected, but also to quickly extinguish the fire. have.

Another object of the present invention is to provide a ground-type outdoor fire hydrant capable of maintenance of a disk valve without digging the ground.

In order to achieve the above object, the rotatable ground type outdoor fire hydrant according to claim 1 of the present invention includes a lower body disposed underground, a heavy body flange-joined with the lower body such that a part is exposed to the ground, and the middle body and flange joint And a fire hydrant body including an upper body having a discharge port to which the fire hose is connected; A disc valve including an on-off valve for opening and closing the lower body; A valve seat having a lower end connected to the on/off valve; Including, the upper body is a first upper body flange-connected to the middle body, a second upper body having the discharge port, and the first upper body while being rotatably installed on the upper body It includes a rotation support member for the upper body rotatably supporting the second upper body, and the rotation support member for the upper body is installed along the circumference therebetween while the inner surface of the second upper body is fitted to the outer surface of the first upper body Includes ball and O-rings.

In the rotatable ground type outdoor fire hydrant according to claim 2 of the present invention, a positioning knob for determining the position of the second upper body with respect to the first upper body is included.

In the rotatable ground type outdoor fire extinguisher according to claim 3 of the present invention, the disk valve includes a seat ring screwed to the lower body, the opening/closing valve disposed to be guided upward and downward to the seat ring, and the circumference of the opening/closing valve. It includes a packing ring that seals the inner surface of the lower body while being installed, and a tool holding protrusion is formed on the upper end of the seat ring.

According to the present invention, there are the following effects.

Compared to the existing ground type outdoor fire hydrant, it is free to change the direction of the discharge port to prevent the fire hose from bending, and to extinguish the fire quickly by turning the direction to the desired fire place.

When maintaining the disk valve after digging the ground type outdoor fire hydrant, it is possible to take out the disk valve to the outside and repair it without digging the ground.

In other words, by separating only the upper body from the middle body, inserting the tool into the middle body, grabbing the gripping protrusion of the seat ring and rotating it, unscrewing the screw with the lower body and pulling the valve seat upward, the seat ring and the disc valve can be pulled out. .

1 and 2 are a perspective view and a cross-sectional view showing a rotatable ground type outdoor fire hydrant according to a preferred embodiment of the present invention.
3A and 3B are a cross-sectional view showing an enlarged view of the rotating support member for the upper body of FIG. 2 and a perspective cross-sectional view thereof.
4A and 4B are an enlarged cross-sectional view of the disk valve for an upper body of FIG. 2 and a perspective cross-sectional view thereof.
5 is a perspective view showing the disc valve separated.
6 is a cross-sectional view illustrating a repair process of a disk valve.
7 is a configuration diagram of a conventional ground-type outdoor fire hydrant.
8 is an enlarged view showing the main part of FIG. 7.
9 is an exploded perspective view of the valve of FIG. 8.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, but the same reference numerals are assigned to the same parts as those of the prior art, and detailed descriptions will be omitted.

1 and 2 are a perspective view and a cross-sectional view showing a rotatable ground type outdoor fire hydrant according to a preferred embodiment of the present invention, and FIGS. 3A and 3B are an enlarged cross-sectional view of the upper body rotation support member of FIG. 2 and a perspective view thereof 4A and 4B are an enlarged cross-sectional view of the disk valve for the upper body of FIG. 2 and a perspective cross-sectional view thereof, FIG. 5 is a perspective view showing the disc valve separated, and FIG. 6 is a diagram illustrating a repair process of the disk valve It is a cross-sectional view.

1 and 2, the rotatable ground type outdoor fire hydrant 1 according to this embodiment includes a fire hydrant body 10 forming an external appearance, and an opening/closing valve assembly for opening and closing the fire hydrant body 10, It includes a rotation support member 50 for the upper body, the second upper body 40b is rotatably supported with respect to the first upper body 40a of the hydrant body 10.

The fire hydrant body 10 includes a lower body 20, a middle body 30, and an upper body 40, as shown in FIG. 1.

The lower body 20 is an elbow type in which a connection pipe such as a water supply and a sewage pipe is flange-joined in the horizontal direction, and the middle body 30 is flange-joined in the vertical direction.

The middle body 30 is a vertical cylindrical body connecting the lower body 20 and the upper body 40 by a flange joint, and an indicator line 31 indicating how far underground is buried is formed on the upper outer circumferential surface.

The upper body 40 is a vertical cylinder with its upper end blocked, and a discharge port 41 to which a fire hose is connected protrudes in the horizontal direction on the upper side thereof.

In particular, the upper body 40 includes a first upper body 40a that is fixed by flange connection with the middle body 30, and a second upper body 40b that is rotatably fitted to the outer circumferential surface of the first upper body 40a.

A portion of the second upper body 40b that is fitted into the first upper body 40a has a larger tube shape than the remaining upper portion (ie, a portion in which a discharge port is formed).

As shown in Figs. 3a and 3b, the upper body rotation support member 50 is a ball installed along the circumference between the inner circumferential surfaces of the second upper body 40b and the outer circumferential surface of the first upper body 40a ( 51) and O-ring (53).

The balls 51 are arranged in two rows up and down, and the O-rings 53 are provided above and below the balls 51.

The ball 51 and the O-ring 53 are installed between the semicircular groove of the outer circumferential surface of the first upper body 40a and the half groove of the inner circumferential surface of the second upper body 40b.

Of course, instead of the ball 51, a rotatable rolling element, for example, a C-ring such as a snap ring may be used.

Due to the rotation support member 50 for the upper body, it is possible to freely change the direction of the discharge port 31.

In addition, after changing the direction of the discharge port 31, it is preferable that the positioning knob 55 is installed as shown in FIG. 3B so that it does not move arbitrarily at that position.

The positioning knob 55 includes a female threaded hole 55a formed in the second upper body 40b, a male threaded rod 55b fastened to the female threaded hole 55a, and a knob 55c for turning the male threaded rod 55b. do.

Therefore, the position is determined when the end of the male threaded rod 55b touches the outer peripheral surface of the first upper body 40a, and if it does not touch, it is in a loosened state that can be rotated in a desired direction.

The on-off valve assembly is rotatably installed on the upper body of the upper body 40 and the disk valve 60 for opening and closing the lower body 20, the lower side of the valve seat 70 installed on the disk valve 60, and the valve seat It includes a lifting control unit (80) for lifting (70).

As shown in FIGS. 4A, 4B and 5, the disc valve 60 includes an on-off valve 60a for opening and closing the lower body 20, a seat ring 60b screwed to the lower body 20, and opening and closing It includes a packing ring 60c that seals the inner surface of the lower body 20 while being installed around the valve 60a.

The on-off valve 60a opens the seat of the lower body 20 when it goes down, and closes the seat when it goes up.

The seat ring 60b has a male screw 61b formed on the outer circumferential surface thereof, and is in a state that is fastened to the female screw 21 formed on the inner circumferential surface of the lower body 20 and blocks the on/off valve 60a from above.

Packing ring (60c) is mounted in the mounting groove (61a) of the on-off valve (60a).

On the edge of the mounting groove (61a) is formed with a locking projection (63a) that takes part of the lower side of the packing ring (60c) as shown in Figure 4b.

Therefore, after the packing ring 60c is fitted into the mounting groove 61a, the locking projection 63a is prevented from being arbitrarily separated as much as possible.

In addition, in order to accurately guide the elevation of the on/off valve (60a), a guide projection (65a) protruding upward is formed on the upper surface of the on/off valve (60a), and a guide projection (65a) is raised on the inner circumferential surface of the seat ring (60b). A guide groove 65b to guide is formed.

On the other hand, as shown in Figs. 4B and 5, a tool gripping protrusion 90 is formed on the upper surface of the seat ring 60b.

Two tool gripping protrusions 90 are provided at intervals of 180 degrees.

This tool holding protrusion 90 is for maintenance by removing the fastening of the seat ring 60b from the lower body 20 using a tool or jig, and then removing the opening/closing valve assembly to the outside as shown in FIG. 6.

In other words, it is not necessary to dig the ground to loosen and maintain the flange joint of the middle body 30 from the lower body 20, but to allow maintenance after removing only the upper body 40 without digging the ground.

6(a) shows that when the adjustment bolt 83 is continuously turned in the loosening direction, the fastening of the adjustment bolt 83 with respect to the connecting rod 81 is released. In this state, the flange joint between the middle body 30 and the first upper body 40b is released and the upper body 40 is separated.

When the upper body 40 is separated, insert a dedicated tool or a dedicated jig into the interior of the middle body 30 and turn it in the unwinding direction while holding the tool gripping protrusion 90, the seat ring 60b rises up and the lower body 20 ) Of the screw is released, the fixed state as shown in Figure 6 (b) is released. This tool gripping protrusion 90 is similar to the butterfly part of the butterfly nut, and is similar to when the butterfly nut is loosened and tightened.

When the screwing of the seat ring 60b is released, as shown in Fig. 6(c), grab the valve seat 70 and pull it upward to take out the on/off valve assembly to the outside, and then perform maintenance, and reverse assembly.

In this way, the outer diameter of the seat ring 60b is formed smaller than the inner diameter of the middle body 30 (see FIGS. 4A and 4B), so that maintenance and repair of the disk valve 60a is possible without excavating the middle body 30.

The valve seat 70 is a long shaft, and an on-off valve 60a is fastened to the lower side thereof, and a connecting rod 81 is connected to the upper side by a pin.

The lifting control unit 80 is rotatably installed on a cover 45 installed on the upper end of the upper body 40.

In other words, the lifting control unit 80 is a lower side screwed to the upper end of the valve seat 70 serves to lift the valve seat 70 according to the rotational drive of the operator, and the lower end of the valve seat 70 It includes a connecting rod 81 to be coupled, and an adjustment bolt 83 coupled to the connecting rod 91 and rotatably coupled to the cover 45.

The present invention is not limited to the specific preferred embodiments described above, and any person of ordinary skill in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims can implement various modifications. Of course, it is added that such changes will fall within the scope of the claims description.

1: Rotatable ground type outdoor fire hydrant
10: fire hydrant body 20: lower body
30: middle body 40: upper body
40a, 40b: first, second upper body 50: upper body rotation support member
51: ball 53: O-ring
55: positioning knob 60: disc valve
60a: on/off valve 60b: seat ring
60c: packing ring 70: valve seat
80: lifting control device 90: tool holding protrusion

Claims (3)

An upper body having a lower body 20 disposed underground, a middle body 30 that is flange-connected to the lower body 20 so that a part of it is exposed to the ground, and a discharge port that is flange-connected to the middle body 30 and to which a fire hose is connected ( A fire hydrant body including 40); A disk valve 60 including an on/off valve 60a for opening and closing the lower body 20; A valve seat having a lower end connected to the on/off valve 60a; Including; a lift control unit for elevating the valve seat 70 while being rotatably installed on the upper body 40,
The upper body 40 includes a first upper body 40a that is flange-connected to the middle body 30, a second upper body 40b having the discharge port, and the second upper body 40b with respect to the first upper body 40a. ), including a rotation support member 50 for the upper body rotatably supporting,
The disk valve 60 includes an on/off valve 60a for opening and closing the lower body 20, a seat ring 60b screwed to the lower body 20, and the valve 60a while being installed around the on/off valve 60a. Including a packing ring (60c) sealing the inner surface of the lower body (20),
The seat ring (60b) is formed with a male screw (61b) on the outer circumferential surface, is fastened to the female screw (21) formed on the inner circumferential surface of the lower body (20),
A tool holding protrusion 90 such as a butterfly nut is formed on the upper surface of the seat ring 60b,
Including a positioning knob 55 for determining the position of the second upper body (40b) with respect to the first upper body (40a),
The positioning knob 55 includes a female threaded hole 55a formed in the second upper body 40b, a male threaded rod 55b fastened to the female threaded hole 55a, and a knob 55c for turning the male threaded rod 55b. Including ),
When the end of the male threaded rod (55b) touches the outer circumferential surface of the first upper body (40a), the position is determined, and if not, a rotatable ground type outdoor fire hydrant capable of rotating in a desired direction.
delete The method according to claim 1,
The upper body rotation support member 50 includes a ball 51 and an O-ring 53 installed along the circumference therebetween while the inner surface of the second upper body 40b is fitted to the outer surface of the first upper body 40a. Rotatable ground type outdoor fire hydrant that includes.

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