CN1061725A

CN1061725A - Fast coupling hydrant

Info

Publication number: CN1061725A
Application number: CN 90109418
Authority: CN
Inventors: 赵军
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-11-21
Filing date: 1990-11-21
Publication date: 1992-06-10

Abstract

The fast coupling hydrant that relates to fire interface device, form by valve body, flap, two interfaces, spring, seal ring etc., it is characterized in that inner chamber at valve body and interface I has the flap of an oval tubular, flap has the cylindrical body of skirt section, valve and elongation, and the cylindrical body of elongation stretches out outside the end face of interface I.When fire alarm took place, two hermaphroditic couplings engaged one another, and the hose connection end face promotes the cylindrical body of flap elongation, and flap is endwisely slipped, and when the mouth on valve on the flap and the valve body communicates, connected fire water supply, rapidly fire fighting.

Description

Fast coupling hydrant

The present invention relates to the fire interface device in the fire main.

It is 89 2 208716 utility model patent-fast general formula wall hydrant that the patent No. is arranged, by valve body, valve seat, flap, spring, seal ring, two interfaces, very pipe, guide pin bushing etc. are formed.The two ends of valve seat are connected with valve body, an interface respectively with screw thread.At valve base cavity flap is arranged, flap can move at the valve base cavity between centers, at body cavity pressure spring is arranged, and it is supporting the end of flap.Because the effect of pressure spring is sealed valve base cavity by the flap port, blocks fire water supply.The another interface is arranged, at the interface inner chamber very pipe is housed, endure the direction reeve that pipe is taken ear by interface, very the Guan Youqi omoplate props up interface internal diameter omoplate place.Interface is the internal fastening type Fire coupling, is the standard piece of fire-fighting equipment.Take ear when two interfaces by two pairs and connect by internal fastening type, the pipe that very has elongation on the pipe will insert valve base cavity, promote flap by very managing, and pressure spring makes the flap end face be shifted onto the inner chamber position of valve body by sealed up valve seat bore position.Flap is a tube that the end is arranged, and has 2～6 valves on flap cylindrical shell position.The fire-fighting current flow into the flap inner chamber by body cavity by valve on the flap, flow into fire-extinguisher water hose by enduring tube cavity again.This fire hydrant has the advantage of quick connection fire water supply, but because the very pipe of UNICOM's fire-extinguisher water hose is the pipe with elongation, is special the manufacturing, can not utilize existing hose connection standard piece.The fire hydrant of this structure, when fire alarm not taking place, tap water is full of body cavity, and spring is had action of rust.

The objective of the invention is provides a kind of fast coupling hydrant in order to overcome above-mentioned deficiency, can make full use of present interfaces and hose connection standard piece, just flap is extended.When fire alarm not taking place, seal fire water supply by the skirt section of flap, body cavity does not have the corrosion of water.

Description of the present invention is as follows, fast coupling hydrant is made up of end cap, valve body, flap, spring, two interfaces, hose connection, guide sleeve, seal ring etc., the valve body two ends are connected with end cap and interface I respectively with screw thread, have mouth at valve body external diameter position, be connected with fire water supply with pipe thread.At body cavity flap is arranged, flap is a long cylindrical body, can endwisely slip at body cavity.The cylindrical shell that skirt section, valve and elongation are arranged on the flap, the cylindrical shell of elongation stretch out outside the interface I end face.Between the inner chamber of flap and end cap, pressure spring is housed.When not having fire alarm, by the skirt section of flap seal on the valve body the mouth, stop fire water supply.Another interface II is arranged, in the interface II hose connection is housed, water hose is housed on the joint.When fire alarm takes place when, two hermaphroditic couplings engage one another, by the cylindrical shell that extends on the hose connection promotion flap, make flap overcome the pressure spring effect, endwisely slip along body cavity, when the mouth on valve on the flap and the valve body when communicating, fire water supply will by the mouth on the valve body, on the flap valve, flow to water hose through hose connection, be used for the fire-fighting fire fighting.Engage one another for ease of two hermaphroditic couplings, on the cylindrical shell external diameter of the elongation of flap, guide sleeve is arranged.For preventing that two interfaces from leaking at jointing, is equipped with lip-type packing in the end of hose connection.

Be described in further detail below in conjunction with drawings and Examples.

Figure is the sectional view of fast coupling hydrant of the present invention.1-exhaust port among the figure, 2-end cap, 3-spring, 4-seal ring, 5-valve body, 6-flap, 7-valve, 8-interface I, 9-sealing gasket, 10-guide sleeve, 11-lip-type packing, 12-interface II, 13-hose connection, 14-running water pipe joint, 15-mouth.

Embodiment makes like this, and fast coupling hydrant is made up of two big parts, and parts are the fire-fighting equipment standard piece by dress hose connection (13) in the interface II (12).Hose connection (13) has a side of taking ear supporting omoplate on the interface II internal diameter in interface II (12).The another parts are made up of valve body (5), end cap (2), flap (6), interface I (8), guide sleeve (10) and seal ring etc.It is relative that the interface of two parts is taken ear, and the water source is connected in the connection by hermaphroditic coupling or separately during connection, in the time of separately by the water source.Have screw thread to be connected with end cap (2), interface I (8) respectively at valve body (5) two ends, valve body (5) and interface I (8) have sealing gasket (9) in the junction.At the inner chamber of valve body (5) and interface I (8) flap (6) of an oval tubular is arranged, the chamber endwisely slips within it.Flap (6) has the cylindrical body of skirt section, valve (7) and elongation, and the cylindrical body of elongation stretches out outside the end face of interface I (8).Between flap (6) skirt section inner chamber and end cap (2), spring (3) is arranged, have omoplate and valve body (5) inner chamber omoplate to offset at flap (6) skirt section end face.When fire alarm not taking place, seal mouth (15) on the valve body (5), stop the water of running water pipe joint (14) lining by flap (6) skirt section.Running water pipe joint (14) is 2 ".For preventing that the running water pipe joint from leaking, mouth (15) both sides on valve body are added with seal ring (4).When fire alarm takes place when, interface I (8) is connected by internal fastening type with interface II (12), the end face of hose connection (13) promotes the cylindrical body of the elongation of flap (6), overcome the effect of spring (3), make flap (6) to the end cap aspect distance that endwisely slips, stroke is 30 millimeters, makes valve (7) on the flap (6) and the mouth (15) on the valve body (5) communicate, and tap water through port (15), valve (7), flap inner chamber, hose connection inner chamber flow to water hose.In order to fire fighting.For preventing that interface I (8) and interface II (12) from leaking at junction point, lip-type packing (11) is arranged at the end face of hose connection (13).Engage one another for ease of interface I and interface II, on the external diameter of the cylindrical body of the elongation of flap (6), guide sleeve (10) is arranged.The external diameter and the interface internal diameter of guide sleeve (10) have certain interval.End face at end cap (2) has exhaust port (1).

Advantage of the present invention: two interfaces connect by internal fastening type, and energy quick-make water source especially shows superiority of the present invention for fire control. In when, fire alarm not taking place, by the flap skirt section seal on the valve body the mouth, block the water source. The present invention can utilize the standard component of existing fire-fighting equipment, compact conformation.

Claims

1, the fast coupling hydrant that relates to fire interface device, form by valve body, flap, two interfaces, spring, seal ring etc., it is characterized in that inner chamber in valve body (5) and interface I (8) has the flap (6) of an oval tubular, flap (6) has the cylindrical body of skirt section, valve (7) and elongation.

2, fast coupling hydrant according to claim 1, it is characterized in that by the skirt section of flap (6) seal on the valve body (5) the mouth (15).

3, fast coupling hydrant according to claim 1 is characterized in that on the external diameter of the cylindrical body that flap (6) extends guide sleeve (10) being arranged.

4, fast coupling hydrant according to claim 1 is characterized in that at the end face of end cap (2) exhaust port (1) being arranged.

5, fast coupling hydrant according to claim 1 is characterized in that mouth (15) both sides on valve body are added with seal ring (4).

6, fast coupling hydrant according to claim 1 is characterized in that being added with lip-type packing (11) at the end face of hose connection (13).