JPS628390Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pump device that facilitates installation of a pressure tank.

Pump devices consisting of a pump body and a pressure tank often have the pump body placed above the pressure tank in order to reduce the installation space, but in the case of a cylindrical preload tank, the pump body is placed above the pressure tank. Conventionally, the structure shown in FIG. 1 has been adopted because the surface to be exposed is small.

That is, a support leg 2 is welded to the lower surface of the cylindrical preload type pressure tank 1 to ensure stability, and a mounting table 3 is welded to the upper surface, and the pump body 4 is mounted on the mounting table.
etc. and covered with a cover 5. However, with this structure, welding is required to attach the support legs 2 and the mounting table 3, and as well as poor workability, rust is likely to occur in these welded parts, and it is also difficult to replace the pressure tank 1. There was a drawback that I couldn't do it.

This proposal has been made in view of this point, and will be explained below based on FIG. 2 and subsequent figures. 6 is a cylindrical pressure tank, the structure of which is shown in FIG. That is, a bag-shaped flexible membrane 7 is housed in this pressure tank 6, and the opening edge of this flexible membrane is
It is held between the opening edge 8 of the pressure tank 6 and the lid plate 9 and tightened with screws 10, 10, and the tongue piece 11 formed on the other end side of the flexible membrane 7 is engaged with the air injection nozzle 12. By doing so, the flexible membrane 7 is held within the pressure tank 6, and the inside of the tank is partitioned into a water chamber 13 and an air chamber 14. A screen 15 is attached to the back side of the cover plate 9 to prevent foreign matter from entering the water chamber 13, and a screen 15 is attached to the cover plate 9 so that a pipe or the like can be connected to the pressure tank 6. The cylindrical portion 16 is formed to protrude.

Reference numeral 17 denotes a support stand for the pump 18 and the pressure tank 6, which is formed by bending a single metal plate into a substantially U-shape. hole 21 and small diameter hole 22 in the other 20.
is installed. The large diameter hole 21 has approximately the same diameter as the pressure tank 6, and the small diameter hole 22 has approximately the same diameter as the cylindrical portion 16 protruding from the lid plate of the pressure tank. Packings 23, 23 are fitted into the pads. To attach the pressure tank 6 to the support base 17, the pressure tank 6 is inserted from the large diameter hole 21 formed in the mounting leg toward the small diameter hole 22, and the cylindrical portion 16 of the tank is inserted into the small diameter hole 22. At the same time, the other end of the pressure tank 6 is fitted into the large diameter hole 2.
A nut 24 is screwed into a screw groove formed on the surface of the cylindrical portion 16, and the support leg 20 is held between the nut and the lid plate 9 of the pressure tank. This pressure tank 6 is fixed to a support stand 17.

On the other hand, the pump main body 6 is placed on the upper surface of the support stand 17, and a check valve 26 is interposed in the middle of the suction side waterway 25 of the pump, and a piping connection port 27 for connecting the suction pipe is connected to the end. It is set up in the department. In addition, a steam separation chamber 30 having a priming port 29 is interposed in the discharge side waterway 28, and a lower end thereof protrudes from the lower surface of the support base 17, and a pipe is connected between the protruding end and the cylindrical portion 16 of the pressure tank. 31, and a pipe connection port 32 for connecting a water supply pipe is provided on the side surface near the lower end of the discharge side waterway 28. Reference numeral 33 denotes a cover for covering the pump 18, and when the lower end opening is fitted to the support base 17, the pipe insertion ports 34, 34 formed in this cover are connected to the pipe connection ports 27, 34.
It is now facing 32.

As described above, the present invention is based on a pair of support legs 1 of a support stand.
Since the pressure tank 6 is fitted and installed between 9 and 20, there is no need to weld this pressure tank to the support legs, making assembly easy, and since this pressure tank can be easily removed, repair is also easy. be. Furthermore, since the pressure tank 6 and the pump 18 are arranged one above the other, less installation space is required compared to the case where they are arranged side by side, which has a great practical effect.

[Brief explanation of the drawing]

Figure 1 is a vertical side view of the conventional pump device, Figure 2 is a front vertical view of the proposed device, Figure 3 is a side view of the same, Figure 4 is a slope view of the support, and Figure 5 is a vertical cross-section of the pressure tank. It is a front view. 19, 20...Support leg, 21...Large diameter hole, 22
...Small diameter hole, 17...Support stand, 16...Cylinder part, 6
...pressure tank, 18 ... pump, 31 ... pipe, 24 ... nut, 7 ... flexible membrane, 13 ... water chamber, 14 ... air chamber.

Claims (1)

[Claims for Utility Model Registration] (1) A U-shaped support stand having a large diameter hole in one of a pair of opposing support legs and a small diameter hole in the other, and a pressure tank whose outer peripheral surface is fitted into the large diameter hole and whose cylindrical portion protruding from the other end is fitted into the small diameter hole; a pump placed on the support; the pump and the pressure tank; A pump device consisting of a pipe that connects the cylindrical parts. (2) A claim for utility model registration in which a screw is cut on the outer periphery of a cylindrical portion protruding from the pressure tank, and the support leg of the support stand is sandwiched between the nut screwed into the screw and the end face of the pressure tank. Pump device according to scope 1. (3) The pump device according to claim 1, wherein the pressure tank is partitioned into a water chamber and an air chamber by a flexible membrane.