WO2009058050A1

WO2009058050A1 - Locking device for a water-supply system

Info

Publication number: WO2009058050A1
Application number: PCT/RU2008/000604
Authority: WO
Inventors: Eduard Petrovich Dergachev; Viktor Ivanovich Zavgorodny; Eduard Eduardovich Dergachev; Alexey Nikolaevich Kuznetsov
Original assignee: Eduard Petrovich Dergachev; Viktor Ivanovich Zavgorodny; Eduard Eduardovich Dergachev; Alexey Nikolaevich Kuznetsov
Priority date: 2007-11-01
Filing date: 2008-09-19
Publication date: 2009-05-07

Abstract

The invention relates to systems for supplying water to different containers, in particular to a passenger coach water tank. The inventive locking device comprises a body (1) connectable to a water-filling pipe, a valve (5) connected to a float (17) and a unit for signalling that the required water level is reached. The inventive device is characterised in that the body is provided with holes (13) communicating with the cavity thereof and in that the valve (5) is located in the body in such a way that it is displaceable between the valve support and thrust seats. In order to prevent the float (17) and connecting elements thereof from being effected by the water flow, the float (17) is coupled to the top part of the valve rod which is designed in such a way that water is able to pass therethrough to the signalling unit. In the second variant, for providing the actuating stability of the valve, the float (17) is connected to the valve rod by means of a linkage mechanism.

Description

The locking device of the water supply system (options).

FIELD OF TECHNOLOGY

The invention relates primarily to the field of railway transport and is intended to shut off the water supply to the water supply system of a passenger car after filling it with water, and can also be used in any field of the national economy where water flow control in water supply systems is required, as well as for installation in systems supply of the current medium, for example, for refueling aircraft with liquid fuel.

BACKGROUND

Known locking device of the water supply system of a passenger car (see RF patent Ш 2117595 from 08.20.1998), containing a housing connected to a water filling pipe, a valve connected to the float, a device for signaling the completion of filling the tank with water.

A disadvantage of the known device is the design complexity and instability of operation, due to the presence of turbulence.

SUMMARY OF THE INVENTION

The technical result to which the invention is directed is to simplify the design, to increase the stability of the shut-off device at various pressures in the filling lines.

The specified result in the invention according to the first embodiment is achieved by the fact that in the shut-off device comprising a housing connected to a water filling pipe connected to a float valve, a device for signaling the end of filling the tank with water in the housing, holes are made that communicate with its cavity, the valve is located in the housing with the ability to move between the support and persistent seats, and its stem is connected with the float with its upper part and is configured to receive water through it to the channel of the signal device made in the housing.

In one of the modifications of the first variant of the device, it is equipped with a reflector mounted on the body, covering it in the area of the holes, the base of the float is directly connected to the valve stem, and its inner side surface is connected to the outer surface of the reflector or is located at a distance from it, while the channel the signal device is in communication with a curved fitting located between the housing and the reflector or the float and the reflector.

A design of the first modification is possible, in which the device is equipped with a reflector mounted on the body, covering it in the area of the holes, the float is made with a sleeve sliding on the reflector, and connected to the valve stem directly with its base or through an intermediate element, while the channel of the signal device is in communication with curved fitting located between the housing and the reflector. In the second modification of the device, the openings in the housing are located on the side of the bottom of the filled tank, the float with its base is directly connected to the valve stem, and its inner side surface is paired with the outer the surface of the housing or located at a distance from it, while the channel of the signaling device is in communication with the fitting, passed through one of the holes of the housing.

In another design of the second modification of the device, the openings in the housing are located on the bottom side of the filled tank, the float is made with a sleeve sliding on the housing and connected to the valve stem directly with its base or through an intermediate element, while the channel of the signaling device is in communication with the fitting passed through one of housing holes.

In the third modification of the device, the float is located under the openings of the housing, connected to the valve stem with a bracket and is made with a sleeve sliding over the housing.

In the device according to any of the modifications, the valve stem can be made hollow to communicate with the body cavity communicated with the channel of the signaling device and the body cavity bounded by the lower surface of the valve.

In the body cavity in communication with the channel, a piston can be placed, mounted on the muffled end of the rod, made with an opening for communication of the shaft cavity with the rod part of the body cavity in communication with the channel.

In the device according to any of the modifications, the valve stem may consist of a telescopically connected tubular guide open at the bottom and a rod connected to the float directly or through an intermediate element, and the guide and rod are interconnected to seal the annular gap between them to exclude water flowing out of it into the body cavity in communication with the channel the specified device, with the maximum extension of the rod from the guide and the intermediate position of the valve, while the rod is passed through the upper opening of the housing with the possibility of sealing it when the required water level is reached and water enters the cavity in communication with the channel of the signaling device through the specified annular gap.

The thrust can be made integral, while one part is mated with a guide, and the other part is passed through the upper hole of the housing and is connected by an intermediate element made, for example, in the form of a bracket.

It is advisable to carry out the casing in the form of one part, through an adapter mating with a water filling pipe, while the valve seat can be fixed between the casing and the adapter.

The specified result in the invention according to the second embodiment is achieved by the fact that in the shut-off device comprising a housing connected to the water filling pipe, a valve connected to the float, a device for signaling the completion of filling the tank with water, openings are made in the housing communicating with its cavity, the valve is arranged in the housing with movement between the supporting and persistent saddles, and its rod with its upper part, at least one lever mechanism connected to the float and made with the possibility of entering through it into rows in the housing configured to channel the signaling device. The lever mechanism may consist of a lever connected by the middle part to the rod with one end to the body, and the other end through a hinged link with a float.

The valve stem may be hollow to communicate the body cavity communicated with the channel of the signaling device and the body cavity bounded by the lower surface of the valve.

The valve stem may consist of a telescopically connected tubular guide open at the bottom and a rod connected to the float directly or through an intermediate element, the guide and rod being interconnected to seal an annular gap between them to prevent water from flowing out of it into the body cavity communicated with the channel of the specified device, with the maximum extension of the rod from the guide and the intermediate position of the valve, while the rod is passed through the upper hole of the housing with the possibility of its compaction when the required water level is reached and water enters the cavity in communication with the channel of the signaling device through the indicated annular gap. The thrust can be made integral, while one part is mated with a guide, and the other part is passed through the upper opening of the housing and connected to the lever. It is advisable to carry out the casing in the form of a single part, through the adapter mating with the water filling pipe, while the valve seat can be fixed between the casing and the adapter. LIST OF DRAWINGS

The invention is illustrated by drawings.

In Fig.l - shows the first modification of the first embodiment of the locking device; figure 2 is another design of the first modification of the first embodiment of the device; in Fig.3 - the third structure of the first modification of the first embodiment of the device; figure 4 - the fourth design of the first modification of the first embodiment of the device; figure 5 is a second modification of the first embodiment of the locking device; Fig.6 is a second design of a second modification of the first embodiment of the device; 7 is a third construction of a second modification of the first embodiment of the device; on Fig - shows the fourth modification of the first embodiment of the locking device at the beginning of filling the tank with water; figure 9 is the same, with a certain initial level of water in the tank; figure 10 - the same, with one of the intermediate positions of the valve; figure 11 is the same, at the end of the flow of water into the tank.

On Fig - shows the first modification of the second variant of the locking device; on Fig is a second modification of the second variant of the device.

EXAMPLE OF IMPLEMENTATION OF THE INVENTION The locking device consists of a hollow detachable or solid body 1 with a thrust seat 2. Inside the hollow body 1 there is a support seat 3 with channels 4 for water passage. A valve 5 with a hollow stem 6 having the muffled end with a piston 7 or with a rod consisting of telescopically connected tubular guide 8 and a rod made of parts 9 and 10. Below the piston 7, a hole 11 is provided in the hollow rod 6, connecting the cavity of the stem 6 with the cavity 12. The housing 1 holes 13 are provided for draining water into the tank. In the upper part of the housing 1 in the area of the cavity 12, a fitting 14 with a flexible hose is installed to signal the end of the filling of the tank with water. The device is mounted on the water filling pipe 15 of the tank. In the locking device according to the first embodiment, in its first modification, a reflector 16 is used, mounted on the end or side surface of the housing with the formation of space between it and the housing for supplying water to the tank.

A feature of the second modification of the first embodiment of the locking device is the implementation of holes 13 on the inner annular protrusion of the housing 1 from the bottom of the tank.

The float 17 in the first and second modifications of the first embodiment can have the most diverse design. Its specific design and the choice of material for its manufacture is determined by the type of specific water supply system and its features.

The float can be directly fixed to the upper end of the stem 6 or part 10 of the rod with another modification of the execution of the valve. The inner surface of the float may be located with a gap relative to the housing 1 or the reflector 16 for the formation of air space between them or mate with them. In the second case, the housing and the reflector act as a guide for the float. A third modification of the first embodiment of the float with a sleeve 18, sliding along the housing 1 or the reflector 16 and restricting the air cavity in the float, is possible. When using the third modification of the implementation of the float to connect it and the rod, an intermediate element 19 is used, for example, a bracket or a traverse.

A feature of the second embodiment of the locking device is that the float 17 is connected to the rod via a lever mechanism, which may consist of a pivot link 28 pivotally connected to the lever 29 (Fig. 12). The lever 29 in the middle part is pivotally connected to the rod, and the free end is movably in the thrust element 30.

To apply the lifting force strictly along the rod, it is advisable to use two linkage mechanisms (Fig. 3.4).

The float is made with a sleeve 18, sliding on the housing 1 and restricting the air cavity in the float.

The locking device in the first modification of the valve as follows. When water is supplied to the tank 15 filling pipe, water through the channels 4 of the support seat 3, through the holes 13 enters the tank. Upon reaching the water level of the float 17 and its further growth, the float 17 together with the stem 6 and valve 5 rises somewhat relative to the support seat 3. After the contact between the lower part of the valve 5 and the surface of the support seat 3 is broken, pressure water will flow through the cavity of the stem 6 and hole 11 for the piston 7 in the rod part of the cavity 12. The piston 7 with the stem 6 and valve 5 will rise up to the contact of the latter with the seat 2. The water supply to the tank will stop.

Water from the cavity 12, when the piston 7 is in the upper position, will enter through the nozzle 14 and the flexible hose into the overflow pipe 20, signaling the end of the filling of the tank with water.

In the second modification of the embodiment of the valve, the locking device operates as follows.

Upon reaching a certain level of refueling (Fig. 8), the float 17 through the bracket 19 and the thrust part 10 raises the thrust part 9 by 2.5 mm (Fig. 9), blocking communication with the atmosphere by sealing the annular gap between the guide 8 and the thrust part 9 (the seal is a standard elastic ring 21 (for example, rubber) - this removes the influence of line pressure, and accordingly, the pressure in the body cavity on the pressure force of the valve 5 to the seat insert 3 (Fig. Z). This ensures the stability of the charge level. Water continues to flow into tank through the float, ck wow, the valve lifts the thrust and through the 2.5 - 3 mm valve cuts the fluid flow, together with the thrust part 10 rises (Fig. 10), closes the channel 22 of the signaling device, then the rubber ring 23 of the thrust part 10 reaches the cover 24 through 6 mm or reflector 16 (figure 2), sealing the housing bore 25. In this case, the valve does not reach the thrust seat 2. Under the influence of line pressure, the valve shuts off the water supply, reaching the housing seat 2 (Fig. 11), while simultaneously providing water through the annular gap between guide 8 part 9 traction in the polo 12, in communication with the channel 22, into which water rushes through the annular gap between the housing and the guide. Water in part 26 cavity 12 plays the role of a hydraulic damper, reducing water hammer (the greater the pressure in the line, the stronger the water hammer decreases). After the valve of the line is closed, all valve elements are returned under the influence of their own weight to their original state.

The proposed options for a locking device have an undeniable advantage over the closest analogue, because it lacks elements that are in the water stream and affect its operation and the level of fueling. The first two modifications of the first version of the locking device do not require any positioning of its parts, because the influence of water flow is excluded by the design itself. In the third modification of the first embodiment and in the second embodiment of the shut-off device, the elimination of the water flow is achieved, respectively, by the relative position of the bracket 19 and the holes 13, and the hinged links 28 and the holes 13.

To ensure the necessary stability of valve actuation in the first embodiment, a spring 27 can be used, which is placed in the cavity 12 under the piston 7 and having low rigidity.

The use of a lever mechanism ensures the stability of the valve, because allows you to increase the separation force of the valve 5 from the support seat 3 and the pressure of the valve against the seats 2 and 3. Using the lever mechanism allows you to reduce the dimensions of the float, because the decrease in lift is offset by a gain in strength due to the use of a lever.

Claims

Claim.

1. The locking device of the water supply system, comprising a housing connected to a water filling pipe, a valve connected to the float and a device for signaling that the required water level has been reached, characterized in that the holes are made in the housing and communicate with its cavity, the valve is located in the housing with the ability to move between supporting and persistent saddles, and its rod with its upper part is connected to the float and is configured to receive water through it to the channel of the signaling device made in the housing.

2. The device according to p. L, characterized in that it is equipped with a reflector mounted on the housing, covering it in the area of the holes, the float with its base directly connected to the valve stem, and its inner side surface is interfaced with the outer surface of the reflector or located at a distance from it while the channel of the signaling device is in communication with a curved fitting located between the housing and the reflector or the float and the reflector.

3. The device according to p. 1, characterized in that it is equipped with a reflector mounted on the housing, covering it in the area of the holes, the float is made with a sleeve sliding on the reflector, and connected to the valve stem directly with its base or through an intermediate element, while the channel the signal device is in communication with a curved fitting located between the housing and the reflector.

4. The device according to claim 1, characterized in that the holes in the body are located on the bottom side of the filled tank, and the float with its base is directly connected to the valve stem, and its inner side surface is interfaced with or located at a distance from the body, at this channel signaling device is communicated with a fitting passed through one of the holes in the housing.

5. The device according to p. L, characterized in that the holes in the body are located on the bottom side of the filled tank, the float is made with a sleeve sliding on the body, and connected to the valve stem directly with its base or through an intermediate element, while the channel of the signaling device is communicated with a fitting passed through one of the openings of the housing.

6. The device according to p. 1, characterized in that the float is located under the openings of the housing, connected to the valve stem by a bracket and is made with a sleeve sliding on the housing.

7. The device according to any one of claims 1 to 6, characterized in that the valve stem is made hollow to communicate with the body cavity communicated with the channel of the signaling device and the body cavity bounded by the lower surface of the valve.

8. The device according to claim 7, characterized in that in the housing cavity communicated with the channel, there is a piston mounted on the plugged end of the rod made with an opening for communicating the cavity of the rod with the rod part of the housing cavity in communication with the channel.

9. A device according to any one of claims 1 to 6, characterized in that the valve stem consists of telescopically connected tubular a guide, open at the bottom, and a thrust connected to the float directly or through an intermediate element, and the guide and thrust are interconnected with the possibility of sealing the annular gap between them to prevent water from flowing out into the cavity of the housing in communication with the channel of the specified device, the maximum extension of the thrust from the guide and the intermediate position of the valve, while the thrust is passed through the upper opening of the housing with the possibility of its sealing when the required water level is reached and water entering the cavity in communication with the channel of the device for signaling through the specified annular gap.

10. The device according to claim 9, characterized in that the thrust is made integral, while one part is paired with a guide, and the other part is passed through the upper opening of the housing and connected to the intermediate element.

11. The device according to any one of claims 1 to 6, 8 and 10, characterized in that the housing is made in the form of a single part through an adapter mating with a water filling pipe.

12. The device according to claim 10, characterized in that the intermediate element is made in the form of a bracket.

13. The device according to claim 11, characterized in that the valve seat is fixed between the adapter and the housing.

14. The locking device of the water supply system, comprising a housing connected to a water filling pipe, a valve connected to the float, and a device for signaling that the required water level has been reached, characterized in that openings are made in the housing that communicate with its cavity, the valve is located in the housing with the possibility of movement between the support and thrust seats, and its stem with its upper part, at least one lever mechanism is connected to the float and is configured to receive water through it to the channel of the signaling device made in the housing.

15. The device according to 14, characterized in that the lever mechanism includes a lever connected to the middle part of the rod, one end to the body, and the other end through an articulated link with a float.

16. The device according to 14 or 15, characterized in that the valve stem is made hollow to communicate with the body cavity in communication with the channel of the signaling device and the body cavity bounded by the lower surface of the valve.

17. The device according to p. 16, characterized in that in the cavity of the housing in communication with the channel, there is a piston mounted on the muffled end of the rod, made with an opening for communication of the cavity of the rod with the rod part of the cavity of the housing in communication with the channel.

18. The device according to 14 or 15, characterized in that the valve stem consists of a telescopically connected tubular guide open in the lower part, and a rod connected to the float directly or through an intermediate element, the guide and rod being interlocked with each other with the possibility of sealing an annular gap between them to prevent leakage of water from it into the body cavity in communication with the channel of the specified device, with the maximum extension of the rod from the guide and the intermediate position of the valve, uschena through the upper opening of the housing with the possibility of sealing it when the required water level is reached and water enters the cavity in communication with the channel of the signaling device through the specified annular gap.

19. The device according to p. 18, characterized in that the thrust is made integral, while one part is paired with a guide, and the other part is passed through the upper hole of the housing and connected to the lever.

20. The device according to any one of paragraphs.14, 15, 17 and 19, characterized in that the housing is made in the form of one part through an adapter mating with a water filling pipe.

21. The device according to claim 20, characterized in that the valve seat is fixed between the adapter and the housing.