RU2370392C2 - Universal filling station - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: invention relates to devices intended for intake of fluids, in particular at railway transport. Filling station comprises housing (1) with intake and discharge branch pipes, closed by distribution assembly (19) from above, tie-rod aligned with stock (17) furnished with valve to connect/disconnect branch pipes, piston and reactive element. Aforesaid discharge branch pipe accommodates a switch furnished with casing and valve fastened to union that communicates switch casing with the chamber limited by reactive element. Elongated stock (17) has its top part staying in permanent contact with distribution assembly wall that limits the upper chamber.

EFFECT: stable operation.

6 cl, 5 dwg

Description

The invention relates to the field of railway transport, but may find application in other areas of the national economy.

A known column (RF Patent No. 2212351 of 09/20/2003), containing a housing with inlet and outlet nozzles, coaxially connected rod and valve stem for communication - separation of nozzles, with a piston and a switch located in the outlet nozzle, the fitting of which is made with a hole connecting the channel of the fitting with the atmosphere. The disadvantages of the known device are:

- unstable operation due to disruption from the seats of the sealing rings at the moment of contact with the saddle;

- the need for significant efforts to include a universal speaker;

- the inability to place the locking device on the dispenser in cases of manufacturing a universal column for enclosed spaces with an elongated stem with a cuff;

- weakening of the mounting of the piston on the shank due to its rotation;

- the complexity of dismantling the switch.

The technical result to which the invention is directed is to increase the reliability of the column by eliminating possible distortions of the core, which is especially true for the large dimensions of the column in length, due to the deep location of the water intake to prevent freezing.

The column is universal because its design allows you to change the overall length over wide limits, which ensures its use in a wide variety of climatic conditions and in a wide range of pressure (up to 8 MPa) and water supply. At the same time, the depth of the column installation well if necessary reaches 6 meters.

The specified result is achieved by the fact that in a universal column containing a housing with inlet and outlet nozzles, a rod and a rod coaxially connected with a valve for communicating and disconnecting the nozzles, with a piston and a reactive element and a switch located in the outlet nozzle having a housing with a valve mounted on the fitting connecting the cavity of the switch housing with the cavity bounded by the reactive element, the rod is elongated and its upper part is in constant contact with the wall of the housing bounding the upper body cavity.

The piston is made with a vertical groove, and a pin located in the groove is fixed to the stem shaft.

The valve stem sealing ring is made with cylindrical and conical surfaces mating with the cylindrical and conical surfaces of the seat.

The switching mechanism is made in the form of a backstage with a handle, movably mounted on the mounting block, combining the traction and the guide covering it.

The lower body cavity, limited by the piston and the cover, is communicated through the calibrated opening of the cover with the atmosphere.

A rod fixed on the housing is connected to a base plate in which a locking device is placed in contact with a guide fixed to the rod and having a recess.

The invention is illustrated by drawings.

Figure 1 shows a longitudinal section of a universal column; figure 2 shows the piston; figure 3 shows the valve stem; figure 4 shows the switch; figure 5 shows the device for turning on the column.

The proposed device (figure 1) contains a device for supplying and draining water from hoses, which has a housing 1. The housing 1 consists of a cylinder 2 with a saddle 3, a pipe 4 with a partition 5 and a mounting cavity 6, connecting hollow jumpers: upper 7 and lower 8 The pipe 4 at the ends has a thread for connecting at one end with a pipe 9 of the main water supply, the other end for connecting to the pipe 10 of the filling hose. In the cylinder 2 there is a core (rod) 11 and a piston 12 with cuffs 13.

The piston 12 is mounted on the shank of the core 11, which has a pin 14 at its end (FIG. 2) for contact with the vertical groove 15 of the piston 12 and is secured by a nut 16 with a retaining plate. The upper part of the core 11 contains an elongated stem 17, which is constantly in the cavity 18 of the distributor 19, and below is a piston 20 with a sleeve 21 and a figured ring 22 (figure 3) containing a cylindrical 23 and conical 24 surface for contact with the cylindrical part of the housing 1 and its seat 25. The bottom of the housing 1 is closed by a cover 26 with a calibrated hole 44 (figure 2). Moreover, the cavity of the housing 1, the piston 12 and the cover 26 with a calibrated hole 44 form an air damper, eliminating the occurrence of impacts of the core 11 against the seat 3 during the operation of the universal column. On top of the housing 1 is closed by a distributor 19, on which a rod 27 is fixed. Inside the distributor 19 there are two cavities: an upper cavity 18 of a smaller diameter for interacting with a sleeve 28 of an elongated rod 17, and a lower cavity 29 for interacting with a sleeve 21 and a piston 20. For the operation of the device the lower cavity 29 of the distributor 19 and the cavity 6 of the pipe 4 are connected detachable with the axial hole 30 fitting 31 (figure 4) with a switch 32 at the end. A detachable fitting 31 connects the cavity 6 of the pipe 4 and the cavity 29 of the distributor 19 to each other. At the top of the rod 27 there is a mechanism for switching on the device (Fig. 5). The mechanism for turning on the device (figure 4) is made in the form of a curtain 33 with a handle 34.

The link 33 with the handle 34 is connected by the axis 35 to the mounting block 36. The mounting block 36 is designed to connect the guide 37 through the through hole 38 of the link 39. Link 39 at the bottom (Fig. 1) is mounted on the rod 17 of the core 11 - above the guide 37 with using nuts 38. The curved part 40 of the link 33 is supported by a mounting plate 41 - the opposite end is made in the form of a handle 34 designed to turn on the device. A fixing device 42 is mounted in the base plate 41 for holding the movable part of the device in the upper position by contacting the guide 37 with the groove 43 (FIG. 2).

Refueling a water tank with water is as follows. One end of the water inlet hose is connected to the head of the pipe 10 (Fig. 1) of the device, the other end to the connecting head of the water tank pipe. Raise the handle 34 up. In this case, the thrust 39 connected to the rocker mechanism handle 34 and the core 11 will shift the latter upward along the cylinder 2 until the sleeve 21 enters the cavity 29 of the distributor 19. At the same time, the water of the main water supply system will pass through the annular gap formed by the cylinder 2 and the core 11, and then through the upper jumper 7 of the pipe 4 into the cavity 6 of the pipe 4, where the switch 32 is located. Under the action of water flow forces, the switch 32 will disconnect the cavity 6 in the pipe 4 and the cavity 29 of the distributor 19. Next, the water through the pipe 10 and the filling hose to the right camping in the water tank. The actuation of the shut-off valve in the water tank after filling it with water will stop the flow of water in the pipes and in the cavity 6 of the pipe 4 of the device where the switch 32 is located. As a result, water through the switch 32 through the axial hole 30 of the detachable fitting 31 will enter the cavity 29. The pressure of the water on the piston 20 with the cuff 21 will upset the balance with the stem 17, where the cuff 28 of a smaller diameter is installed. This will ensure that the core 11 moves downward, first overcoming the resistance of the locking device 42, and then the air damper until the sealing ring 22 contacts the seat 3 of the cylinder 2, which will ensure that the water supply from the main water supply to the water tank is cut off.

Claims (6)

1. The filling column, comprising a housing with inlet and outlet nozzles, closed on top of the distributor, coaxially connected rod and valve stem for communication-isolation of the nozzles, with a piston and a reactive element, and a switch located in the outlet nozzle having a housing with a valve mounted on the fitting connecting the cavity of the switch housing with the cavity bounded by the reactive element, characterized in that the rod is elongated and its upper part is in constant contact with the wall of the distributor, og upper-limiting cavity. 2. The filling column according to claim 1, characterized in that the piston is made with a vertical groove, and a pin located in the groove is fixed to the stem shank. 3. The filling column according to claim 1, characterized in that the stem valve o-ring is made with cylindrical and conical surfaces mating with the cylindrical and conical surfaces of the saddle. 4. The refueling column according to claim 1, characterized in that the switching mechanism is made in the form of a backstage with a handle movably mounted on the mounting block, combining the link and the guide catching it. 5. The filling column according to claim 1, characterized in that the lower cavity of the housing, limited by the piston and the cover, is communicated through the calibrated hole of the cover with the atmosphere. 6. The gas station according to claim 4, characterized in that the rod fixed to the housing is connected to a base plate in which a locking device is placed in contact with a guide fixed to the rod having a recess.

Images