CN2382613Y - Safety leakless water supply device for railway passenger carriage - Google Patents

Abstract

The utility model relates to a safety leakless water supply device for railway passenger carriages. A flow blocking valve is additionally arranged at the front end of a water supply rubber pipe; a water supply system of the carriage is largely improved. When the utility model supplies water, the water supply rubber pipe automatically falls off after a water tank is full of water; pipe openings at two positions are sealed; retained water in the water supply pipe, under the action of siphon enter the water tank. In the whole process of supplying water, phenomena of overflow and leakage do not appear. If the water supply rubber pipe does not fall off and a train starts, the flow blocking valve is forced to pull to disassemble so that the water supply rubber pipe is separated from the train. The flow blocking valve made of non-metal materials is even pressed under wheels, which can not cause harm to the traveling train. The improvement which can save water is favorable to safety of the traveling train.

Description

Railway transport of passengers compartment safety does not have the leakage water-supply apparatus

The utility model relates to wetting system in a kind of railway transport of passengers, and the passenger vehicle with safety precaution usefulness does not have the leakage water-supply apparatus.

Present railway transport of passengers compartment all is to use elevated tank water storage.According to introducing in " car construction and maintenance " book chapter 7 " passenger vehicle feed water rigging ": the elevated tank that interconnects is established in both sides, one end top in the compartment, and respectively is provided with Upper hose following introducing from the compartment.When replenishing water storage, the surface water supply leather hose is received on the Upper hose that the compartment deviates from platform one side, the tap of fetching boiling water is to the water tank water filling.Show when treating the overflow pipe water outlet that water fills it up with, close the stagnant water tap and pull out leather hose, just finished last water process.At this moment, the water that is detained in compartment Upper hose and the surface water supply leather hose has all poured off in vain.Well imagine that the water yield that the china railway system wastes thus is surprising certainly.In addition, because the passenger vehicle speed-raising dwell time generally shortens, the incident that last water leather hose following and that pull out is dragged away during driving also takes place once in a while, and this has just brought serious threat to traffic safety.

The purpose of this utility model is: provide a kind of railway transport of passengers compartment safety not have the leakage water-supply apparatus.Set up stifled stream valve at former water supply leather hose front end, the valve hat connects Upper hose, automatically come off after the topped up with water, water route, two places is stopped up automatically simultaneously and is prevented to run off and that leather hose that train pulled that does not come off as yet and promptly be activated, and also can be haled to disintegrate because of stifled stream valve to break away from train.In addition, the resident water in the compartment Upper hose can also all be inhaled into water tank.The purpose of so just reached safety, economizing on water.

The purpose of this utility model is achieved in that at surface water supply leather hose front end, the stifled stream of the hydraulic pressure valve that a non-metallic material is made is installed, and its conduit saddle and valve body are fastened on simultaneously with special bolt, and the valve body chamber includes water blocking, conduit saddle connects the water supply leather hose, and the valve body bizet is a tubulose plasticity joint.In addition, blow off valve is installed separately, is removed original spilling water freeing pipe at osed top elevated tank top, compartment.Tank top is only established a total water inlet, and the buoyancy that is connecting below the total water inlet in the water tank revolves heart valve, is connecting coolant inlet pipe above, and the coolant inlet pipe upper end is connecting the threeway plunger valve, and these valve two ends are connecting the combined siphon valve separately.Contain negative pressure inlet valve, pressure flood valve on the valve body of combined siphon valve and crossing water passage and two plugs.Pressure flood valve lower end is connecting Upper hose, and the Upper hose lower end is provided with boiler check valve.Boiler check valve upper end is a water outlet, has siphon being communicated with the siphon valve on the tube wall that closes on, its lower end is a water inlet, and a bit of Upper hose mouth that is attached thereto has the inlet opening on the tube wall bottom.

Owing to adopt such scheme, when the utility model railway transport of passengers compartment safety does not have the use of the water-supply apparatus of leakage, can receive the effect of anticipation.When train dwelling adds water, the water supply leather hose is blocked up the tubulose plasticity fitting sleeve of stream valve on compartment Upper hose mouth, the Upper hose mouth heads on water blocking and has left valve port, penstock is gushed out by this valve and is pierced the Upper hose mouth, plow earlier boiler check valve along the pipe and on, back down the pressure flood valve again, change the threeway plunger valve over to through connection pipe, hydraulic pressure will be slidably the plunger other end of shifting this valve onto stopped up path over there, penstock just passes water inlet through coolant inlet pipe, and revolves heart valve by the buoyancy of opening and entered water tank.In water tank water intake, the air in the case is discharged by the blow off valve at top.When water level reach a certain height, the ball float (respectively establishing to increase buoyancy in the valve body both sides) that buoyancy revolves heart valve floated, and floating ball handle drives the valve core rotation valve cuts out.Because water inlet blocked, cause the hydraulic pressure in the watering pipeline to raise rapidly, will soon collapse and take off being enclosed within plasticity joint on the Upper hose mouth, stifled stream valve blocks the water route at once, is through with and goes up the water process.Because of train starts when pulling the plasticity joint, stifled stream valve can dam equally.When the plasticity joint comes off, the closure of check ring of Upper hose lower end, compartment with hydropexis in pipe.When fetching boiling water leading water, water level descends in the water tank, and ball float falls to making valve opening.When water level drops to a certain degree, (two ends, old-fashioned compartment that have all are provided with elevated tank and with being communicated with communicating pipe because of negative pressure appears in no intake channel at the top, this kind structure should be installed a boiler check valve on communicating pipe, prevent that water storage from refluxing, in order to avoid the negative pressure intensity in the weakening main water box), air has just backed down the negative pressure inlet valve, and the resident water that barometric pressure is directly oppressed in the Upper hose has entered water tank by siphon.After treating that the interior water of Upper hose exhausts, this path has just become simple intake channel.The pressure flood valve makes this valve can only pass through head water, and can not leak into air by rotation pressure regulation plug regulating spring pressure.Must be noted that: must not pass the pressure flood valve by negative pressure inlet valve suction air, the then siphon of herein leaking gas was lost efficacy.In addition, in case run into that train starts and situation that the plasticity joint takes off not open, the tensile stress that increases severely can make the non-metal bolt of stifled stream valve special use all break, conduit saddle is promptly left together with the water supply leather hose, though this has destroyed a stifled stream valve and a lot of water that can pour off, but compare with traffic safety, this some loss still is worth.If stifled stream valve unexpectedly is crushed under the wheel of rolling,, can not work the mischief to driving because of itself does not have metal.In addition, in the winter time ice period, placing outdoor water supply leather hose all is to lean on the method for thin water permanent current to prevent to freeze in the pipe, at this moment the water blocking that blocks up the stream valve should be replaced with the special-purpose water blocking in winter that the surface has groove.

Below in conjunction with accompanying drawing, the utility model is further specified.

Fig. 1 is that the utility model railway transport of passengers compartment safety does not have the scheme drawing of revealing water-supply apparatus.

Fig. 2 is the stifled cutaway view that flows valve A-A position in Fig. 1 of hydraulic pressure that the surface water supply device is set up.

1. water supply leather hoses, 2. conduit saddles, 3. special bolts, 4. water blockings, 5. stifled stream valve body 6. Upper hose mouths 7. boiler check valve 8. Upper hoses 9. siphons 10. negative pressure inlet valves 11. plugs 12. siphon valve bodies 13. pressure flood valves 14. springs 15. pressure regulation plugs 16. connection pipes 17. threeway plunger valves 18. sliding spools 19. coolants inlet pipe 20. water inlets 21. buoyancy revolve heart valve 22. ball floats 23. one-way exhaust valves 24. water tanks 25. water cocks among the figure

In Fig. 1, surface water supply leather hose (1) is glued simultaneously with the conduit saddle (2) of the stifled stream of hydraulic pressure valve, stifled stream valve body (5) is fastened on simultaneously with full dog point socket set (3) with the conduit saddle flange, Upper hose mouth (6) is inserted in the tubulose plasticity joint of stifled stream valve body, and head on water blocking (4) and left the valve port place, penstock just passes the gap of geing out of the way between water blocking and the valve port, pierce from the circular hole of Upper hose mouth lower end, plow boiler check valve (7) along the pipe and on, back down pressure flood valve (13) again,, enter threeway plunger valve (17) through connection pipe (16), (this plunger can only be promoted by penstock to shift sliding spool (18) onto that end, the water tank negative pressure can not be inhaled it), path is blocked over there, turn to down by coolant inlet pipe (19), enter water inlet (20), and pass lower end bonded assembly buoyancy and revolve heart valve (21) and entered osed top water tank (24).In water tank water intake, air is discharged from one-way exhaust valve (23) in the case.Behind water level rising and picking-up ball float (22) in the water tank, the cylindrical valve core radially having the limber hole that floating ball handle drive buoyancy revolves heart valve (21) rotates, and makes the limber hole dislocation and this valve cuts out the then rising rapidly of hydraulic pressure that suction culvert is interior.When having reached certain pressure, the joint of stifled stream valve plasticity joint and Upper hose mouth is opened by distension, and the water blocking of stifled stream valve has been withstood on the valve port by water at once, and the current in the water supply leather hose have been stopped.Meanwhile, Upper hose lower end boiler check valve (7) cuts out, and the resident water in the pipe is retained.When the tap of fetching boiling water (25) water, water level descends in the water tank, and ball float just drives the valve core rotation that buoyancy revolves heart valve (21), and the limber hole is aligned, and has opened the path of coolant inlet pipe to water tank.When continuing to discharge water, tank top has formed zone of negative pressure, this negative pressure can be not influential to the sliding spool (18) and the Upper hose boiler check valve (7) of one-way exhaust valve (23), pressure flood valve (13), threeway plunger valve, negative pressure inlet valve (10) can only be opened, outside air is inhaled into thus, resident water in the atmosphere compressing Upper hose is by the siphon siphon valve of flowing through, again after connection pipe, plunger valve, coolant inlet pipe, water inlet and buoyancy revolve heart valve, entered water tank, the water that this part originally can only be dropped is recycled.In addition, the plug (11) on the siphon valve body (12) is just established in order to block the processing technology hole, not has it and uses.Moreover, there is several valves to draw ball in this scheme drawing and represents valve core, further design is definite after testing and valve core shape in kind awaits.

Stifled as can be seen stream valve body (5) transverse shape herein in Fig. 2.Water blocking (4) is placed in the middle, and the flakes space around it is to walk water passage.Special-purpose non-metal bolt (3) should have special requirement of strength, the effect of hydraulic pressure strength during normal water flowing that it can bear the certain safety factor of affix but (when being pulled by train) then must be disrumpent feelings with guarantee driving safety under superpower pulling force, this bolt is evenly distributed on the circumference of flange.

Claims (6)

1. water-supply apparatus that is used for the railway transport of passengers compartment, it is characterized in that having adopted a cover brand new structure, water supply pipe plug stream valve, compartment Upper hose, boiler check valve, siphon, siphon valve, threeway plunger valve, one-way exhaust valve, buoyancy are revolved heart valve and osed top elevated tank be combined into one in an orderly manner and put the water device.

2. railway transport of passengers according to claim 1 compartment safety does not have the leakage water-supply apparatus, it is characterized in that the stifled stream of the hydraulic pressure valve that a non-metallic material is made being installed at surface water supply leather hose front end, the assembly set of this valve is fastening with the non-metal bolted connection with certain intensity, leave the water supply path in the valve body chamber, its bizet is a tubulose plasticity joint, adopt water blocking formula valve core, valve core is not withstood on by penstock and is normally off on the valve port when going up water.

3. railway transport of passengers according to claim 1 compartment safety does not have the leakage water-supply apparatus, the Upper hose lower end that it is characterized in that the both sides, compartment is provided with boiler check valve, Upper hose is communicated with water tank by the siphoning installation that a cover that is connecting has the combined siphon valve, containing negative pressure inlet valve, pressure flood valve on the valve body of combined siphon valve, with mistake water passage and two plugs, the pressure flood valve is made of valve port, valve core, spring and a plug that is used for regulating spring pressure of being included on the siphon valve body.

4. railway transport of passengers according to claim 1 compartment safety does not have the leakage water-supply apparatus, it is characterized in that having carried out totally-enclosed to the elevated tank that is interconnected on the compartment, only a total water inlet is set at a main water box top, each tank top is equipped with outside one-way exhaust valve, and water tank bottom is established the dewatering outlet.

5. railway transport of passengers according to claim 1 compartment safety does not have the leakage water-supply apparatus, it is characterized in that the water inlet manifold top that is connected with the elevated tank total water inlet, be provided with a threeway plunger valve, respectively there are one and siphon valve bonded assembly water inlet in these valve two ends, middle one section is piston cylinder, water outlet is located at the piston cylinder middle part, and a sliding spool is housed in the piston cylinder.

6. railway transport of passengers according to claim 1 compartment safety does not have the leakage water-supply apparatus, it is characterized in that connecting a buoyancy in elevated tank water inlet lower end revolves heart valve, this valve by ball float, floating ball handle, floating ball handle afterbody captive nut, had and radially crossed water passage and revolution valve core, up/down perforation and middle valve body, valve body end cap, the end cap fix screw that has the rotary space that matches with the valve core shape that cut off the water supply pipe valve structure and two ends have a controlled rotating shaft are formed.