CN1104969A

CN1104969A - Flexible pipe jointing valve for railway vehicle brake

Info

Publication number: CN1104969A
Application number: CN 94100218
Authority: CN
Inventors: 左庆华
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-04
Filing date: 1994-01-04
Publication date: 1995-07-12

Abstract

The invented valve relates to a kind of conical valve on whose small end there is a through hole and there is a valve on the other end. One end of the valve rod of the large side of the valve core is sleeved with a spring, the other end is pierced out from the central hole of the valve cover and is connected with circular pin to the valve holder. The screw in the threaded hole of the other end of the valve holder holds down the spring and steel balls, and locates in the locating hole on outside of the valve body. When connecting two valves the valve holder of each valve body is held in the holding slot of the other valve body, but turning two valve bodys, the two valves are opened simultaneously. After two valves are connected, their holders are clipped by the holding slot of the other part. The interlocking property avoids that the valve is closed by mispulling the valve holder and prevents the travelling accident.

Description

Flexible pipe jointing valve for railway vehicle brake

The present invention is a kind of flexible pipe jointing valve for railway vehicle brake.

At present, China railways vehicle braked flexible pipe connects and is made up of two parts: the one, and angle cock, the 2nd, hose coupling, both separately use.After the vehicle hitch connects, earlier hose coupling is connected, again the angle cock handle wrench to the valve open position.When angle cock is opened valve handle position be with train forward, because the angle cock handle does not have blocking device, often closed or the people that climbed onto a slow-going train is not intended to pull to the off position horizontal with train as handgrip by the person of destroying purposely, cause braking to be cut off with wind, make braking out of control, lose the powerful inertia and the impulsive force of train of control of braking itself, rapidly rush at the place ahead, cause train colliding, derailing is overturned, and the people is dead, car is ruined, goods is died, circuit and electrified equipment and circuit both sides building are destroyed, lose residual heavyly, a causality loss reaches millions of units unexpectedly, even several ten million yuan.

The objective of the invention is to design a kind of angle cock and hose coupling is one, connects two valves and opens two valves; Win two valves and close two valves and once finish respectively, after two valves connect, the valve handle interlocking, valve handle can not be pulled by the people, ensures that train braking is not closed with wind, can make the brake hose of train safe stopping-down connect valve.

Realize that technical scheme of the present invention is: the brake hose of being made up of the two large divisions connects valve, and an end is the flexible pipe adapter sleeve, and the other end is a valve.The valve body taper hole of band tapering has a valve in flexible pipe adapter sleeve one side, the big first end negative thread of its taper hole has the valve gap outside thread in hole, garden to be connected with the center, the garden platform shape spool that the outer garden tapering of packing in the valve body taper hole is consistent with the valve body taper hole, center spool is and its consistent hole of tapering, outer garden, microcephaly's one end in hole is a through hole, big first end sealing, spool has a spool valve the same with the valve body valve in flexible pipe adapter sleeve one side, it is the garden shape valve rod thin with the thick end of an end of spool one that the spool major part seals an end center, a thick end overlaps a spring, a thin end passes from hole, garden, valve gap center, be connected with the garden pin with valve handle one end, the valve handle other end bends towards the valve body outside, bend towards again perpendicular to the center spool direction, garden cylindricality screw in compression one spring and a steel ball in this end tapped bore, this steel ball is located with opening in the valve knock hole at the valve-off in the valve body outside; Valve body taper hole microcephaly one end, flexible pipe adapter sleeve direction has a draw-in groove, when two valves connect or win, blocks the other side's valve handle mutually, and drives spool with valve open or close; Two valve handles are locking mutually in draw-in groove, can prevent that valve handle from being pulled by the human hand.

Fig. 1 is a structural representation of the present invention; Fig. 2 is the front elevation of draw-in groove.

Describe structure of the present invention and using method in detail below in conjunction with accompanying drawing.

Connect valve and be made up of the two large divisions, an end is the flexible pipe adapter sleeve 13 that connects brake hose, and the other end is a valve body 1, one taper hole is arranged in the valve body 1, taper hole microcephaly one end has a circular groove, and the big first end of taper hole has negative thread, and taper hole has a valve body valve 12 by flexible pipe adapter sleeve 13 1 sides; The garden platform shape spool 2 of packing in valve body 1 taper hole, spool 2 outer garden taperings are consistent with valve body 1 taper hole, spool 2 centers have one with the consistent hole of tapering, spool 2 outer garden, microcephaly's one end in hole is a through hole, big first end sealing, spool 2 has a spool valve 11 the same with valve body valve 12 in flexible pipe adapter sleeve 13 1 sides; Spool 2 seals an end center, and valve rod 3 is the thin garden oblique crank Z of the thick end of an end, and a thin end has parallel plane, relative both sides, in the middle of the plane garden shaped pin hole is arranged, and a thick end is with spring 4; The one side of valve gap 5 is the plane, another side is one less than the garden shape cover of valve gap external diameter perpendicular to the valve gap plane, the external diameter of garden shape cover has outside thread, be connected with the big first end negative thread of valve body 1 taper hole, there is hole, a garden at valve gap 5 centers, from then on valve rod 3 holds carefully that the hole passes, and there is the square opening of 4 even cloth at the edge of valve gap 5, uses when keeping supplying valve gap 5; Valve handle 6 one ends have holes that match with the thin end of valve rod 3 shapes, laterally there is a garden shaped pin hole in this hole, this pin-and-hole runs through mutually with valve rod 3 thin end pin-and-holes, with garden pin 14 valve rod 3 thin ends are connected with valve handle 6 one ends, 14 two rivetings are sold in the garden, valve handle 6 other ends bend towards valve body 1 lateral surface, bend towards again perpendicular to spool 2 center positions, this end has a tapped bore, tapped bore is adorned a steel ball 7 by valve body 1 outside one end, and a spring 8 is adorned in the centre, and a garden post screw 9 is arranged on the other end, screw 9 holddown springs 8 and steel ball 7, this steel ball is located with opening in the valve knock hole at the valve-off in valve body 1 outside; Valve body 1 taper hole microcephaly one end has a draw-in groove 10 in flexible pipe adapter sleeve 13 1 sides, as accompanying drawing Fig. 2.The bounce that spring 4 utilizes the one end to withstand valve gap 5 inner planes makes the spool 2 outer garden conical surfaces combine closely with valve body 1 taper hole face.Garden, valve gap 5 center borehole jack is gone into shape position, valve rod 3 thin end garden, blocks the shaft shoulder of the thick end of valve rod 3, makes spool 2 not have bigger end float misalignment in valve body 1 taper hole.Inner hexagonal hole is adopted at the center, outer end of screw 9, makes common tool be difficult for turning screw 9.

Using method: when connecting two braking hose connection valves, two hands lift two valves simultaneously, two valve bodies, 1 taper hole microcephaly, one end is drawn close mutually, valve handle 6 with each My World snaps in the other side's draw-in groove 10 simultaneously, transfer two valves then, this moment, two valve bodies 1 were that the garden heart is done relative rotation with spool 2 centers, valve body 1 rotates to a side, the valve rod 6 that connects spool 2 is driven by the other side's draw-in groove 10 and rotates to the opposing party, when valve handle 6 be driven to rotate to steel ball 7 when opening the valve knock hole,

valve body valve

12 and 11 alignment of spool valve, two valves are opened simultaneously; When winning two braking hose connection valves, two hands are gone up simultaneously and are lifted two valves, this moment, two valve bodies 1 were that the garden heart is done relative rotation with spool 2 centers, the direction of rotation is opposite with the hand of rotation in when connection, valve body 1 rotates to a side, the valve handle 6 that connects spool 2 is driven by the other side's draw-in groove 10 and rotates to the opposing party, when valve handle 6 is driven to rotate to steel ball 7 to the valve-off knock hole, valve body valve 12 and spool valve 11 stagger, two valves are closed simultaneously, two valve bodies 1 draw back when valve handle 6 leaves the other side's draw-in groove 10 to each My World then, and two valve bodies are decomposed.Seldom the combined train of Fen Xieing can connect final section car tailstock portion brake hose on valve valve handle 6 one end screws 8 and be screwed into, and spring 8 and steel ball 7 are killed in the knock hole of valve-off, can prevent to be pulled valve handle 6 and open valve by the people.After two valves decomposed, valve just was in close valve state, and when needs were opened valve, available hand was pulled valve handle 6 and opened valve.

The present invention makes each car save 2 angle cocks, after two braking flexible pipe attachment valve are decomposed, can pull valve handle with hand and make valve closing, also can open, but after two braking hose connection valves connected, the valve handle that connects spool was blocked by the draw-in groove on the other side's valve body mutually, has interlocking capability, can do not pulled valve handle and valve-off, guarantee that train braking is unimpeded with air pipe line, can avoid because of closed the angle cock train braking railways train operation grave accident that causes out of control by the people by the human hand.

Claims

1, a kind of flexible pipe jointing valve for railway vehicle brake, it is characterized in that valve body (1) taper hole with tapering has a valve body valve (12) in flexible pipe adapter sleeve (13) one sides, the big first end negative thread of its taper hole has valve gap (5) outside thread in hole, garden to be connected with the center, the garden platform shape spool (2) that the outer garden tapering of packing in valve body (1) taper hole is consistent with valve body (1) taper hole, spool (2) center is and its consistent hole of tapering, outer garden, microcephaly's one end in hole is a through hole, big first end sealing, spool (2) has a spool valve (11) the same with valve body valve (12) in flexible pipe adapter sleeve (13) one sides, spool (2) major part seals an end center, a thick end overlaps a spring (4), a thin end passes from hole, valve gap (5) garden, center, be connected with garden pin (14) with valve handle (6) one ends, the other end of valve rod (6) bends towards valve body (1) outside, bend towards again perpendicular to spool (2) center position, garden cylindricality screw (9) holddown spring (8) and steel ball (7) in this end tapped bore, steel ball (7) is located with opening in the valve knock hole at the valve-off in valve body (1) outside; Valve body (1) taper hole microcephaly one end flexible pipe adapter sleeve (13) one sides have a draw-in groove (10), and valve body valve (12) one sides are flexible pipe adapter sleeves (13) of connection hose.

2, flexible pipe jointing valve for railway vehicle brake as claimed in claim 1, it is characterized in that said valve body valve (12) and spool valve (11) flexible pipe adapter sleeve (13) one sides that coexist, when valve handle (6) goes to the knock hole of opening valve, valve body valve (12) and spool valve (11) align, and constitute a passage jointly with flexible pipe adapter sleeve (13), spool (2) microcephaly one end through hole.