SU969845A1 - Siphon to flush tank - Google Patents

Description

The invention relates to sanitary engineering, and more specifically to tanks of washing devices with bell-type mobile siphons.

A siphon to the flush tank is known, which contains a central tube, a bell mounted on it with axial movement, with a guide cylinder and a float chamber, and also a cup fixed on the tube and covering the bell, the cavity of which is separated from the tank cavity by means of a plate valve. .Hydraulic resistance of siphon constant C.

A disadvantage of the known device is that the possibility of self-siphoning of the siphon during an emergency is not excluded. the mode of operation of the tank, i.e., with a faulty float valve or with an increase in pressure in the network. This leads to an increase in water consumption.

The purpose of the invention is to improve performance by eliminating the possibility of self-siphoning by changing the hydraulic resistance of the siphon depending on the mode of operation of the tank.

This goal is achieved by the fact that in the siphon to the flush tank containing the central tube, mounted on it with the possibility of axial movement of the bell with the guide cylinder and the float chamber, as well as the glass fixed on the tube and covering the bell, the cavity of which is separated from the cavity of the tank by means of a plate valve, the float X1 of the bell is formed by a diametrically hollow edge adjacent to the guide cylinder, the lower edge of which coincides with

15, with the bottom edge of the bell; in this case, the bottom of the glass is made of a lattice, and the plate valve is a membrane attached to the central tube.

20

FIG. 1 shows the siphon to the flush tank, a general view of FIG. 2, section A-A in FIG. on fig.Z -.siphon to the flush tank, the incision in the working position; figure 4 is the same, 25 when emergency operation.

The siphon is placed in the case 1 of the flush tank and contains a center pipe 2 and a glass 3 with a bottom, made in the form of a grid 4, overlapped,

Claims (1)

30 by a membrane 5. The central tube and the cup are attached to the body with a nut b and a gasket 7. On the central tube 2 with the possibility of axial movement there is a bell 8 with a tide 9 and a trigger button 10. The bell 8 is equipped with a guide cylinder 11 to which diametral hollow rib 12, Rib 12 may have a regular section. The other two diametral ribs 13p located in the upper part of the guide cylinder are jetted, and the lower edge of these ribs should not interfere with the bending of the membrane 5. The lower edge of the rib 12 coincides with the lower edge of the bell 8. The siphon will be made primarily of polymer material. The device operates as follows. In the initial position (Fig. 1), the bell 8, together with the cylinder 11, thanks to the presence of a hollow rib. 12, is in an upper position, in which the start button 10 completely protrudes from the tank. In order to drain the water from the housing 1, the start button 10 is pressed, while the bell 8 together with the guide cylinder 1 and the ribs 12 and 13 are lowered and the membrane 5 blocks the openings of the grate 4 and glass 3. Water enclosed in the glass 3 under the bell 8 enters the central pipe 2, in which as the water is displaced, a vacuum appears. As soon as the bell is lowered to its lowest position under a vacuum in the central tube, the 2 meme & wound 5 will bend like sashes, ensuring that the openings of the grill 4 are fully opened, so that the lower edges of the rib 12 press the wound 5 to the grate 4 in diameter. Ribs 13 prevent flow swirling. When the tank is emptying, the membrane returns to its original position by the action of elastic forces. As the cistern is filled with water again, the hollow rib 12 with the bell 8 and the guide cylinder 11 rises. When the flush tank is operating in emergency mode, when the bell .8 together with the guide cylinder 11 and the hollow rib 12 occupy the upper position, the membrane 5 is slightly bent over to form chaotically arranged folds (Figure 4), which significantly increases its hydraulic resistance. At the same time, there is no self-siphoning of the siphon, since, despite periodic dilution in the central tube, this resolution is not sufficient to significantly raise the water level under the bell. The presence of the ribs 12 and 13 also increases the siphon hydraulic resistance. Thus, in normal mode the operation of the flush tank due to the membrane bending in diameter across the diameter of its hydraulic resistance decreases sharply, which provides both an intensive siphon charge and a standard flow rate water going to flush. In case of emergency operation of the tank, an increase in the hydraulic resistance of the siphon due to incomplete bending of the membrane and the influence of the ribs on the flow of water moving through the siphon prevents siphon from discharging. In addition, with this siphoning arrangement, the intensity of the flush increases and does not require the presence of an additional unit to allow the partial emptying of the flush tank. Claim Siphon to a flush tank containing a central tube mounted on it with the possibility of axial movement of the bell with a guide cylinder and a float chamber, as well as fixed on the tube and covering the 11th bell glass, the cavity of which is separated q. The cavity of the tank by means of a plate valve characterized in that, in order to improve performance by eliminating the possibility of self-siphoning of the siphon by changing the hydraulic resistance of the siphon depending on the mode of operation of the tank, the float chamber camera is formed by a diametrical hollow rib adjacent to the guide cylinder, the lower edge of which coincides with the lower edge of the bell, with the bottom of the glass made of lattice and the flap valve is a membrane V attached to the central tube. Sources of information taken into account in the examination 1. UK patent number 1455419, cl. E 1 C, pub. 1976 (prototype).