JPH10266998A - Mounting structure of circulating pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure that has surely prevented any noise due to vibration in time of driving a circulating pump. SOLUTION: A mount 6 is locked to the top of a base plate via a first vibro- isolating sheet 7 and, after a circulating pump 3 is mounted on this mount 6 via a second vibro-isolating sheet 9, if this circulating pump 3 is locked on top of the mount 6 with an arched hold-down band 10, the base plate 1 and the circulating pump 3 are attachable without being directly connected, so that any vibration in the circulating pump 3 will in no case be transmitted to the base plate 1 in consequence, whereby any noise due to vibration is surely preventable from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration-proof structure of a circulating pump used in a forced-circulation bath kettle or a hot-water heater with a built-in bath kettle.

[0002]

2. Description of the Related Art Conventionally, in this type, as disclosed in, for example, Japanese Utility Model Laid-Open Publication No. 55-168150, a circulating pump is mounted on a base plate via a fixing metal fitting with rubber packing. , To measure vibration isolation.

[0003]

By the way, in this conventional device, though the rubber packing and the fixing metal are interposed,
Eventually, the circulating pump will be screwed directly to the base plate, so it will not be a perfect vibration-proof structure, but the vibration of the circulating pump will be transmitted to the base plate via fixing screws, causing noise. It was something.

In recent years, wall-mounted water heaters have been proposed in consideration of the installation space. However, since this device is mounted on the wall of a house, even a small amount of vibration is transmitted from the device to the wall and generates a large noise. It had a point.

[0005]

The present invention focuses on this point and solves the above-mentioned drawbacks. In particular, the present invention is directed to fixing a circulating pump on a base plate constituting a body frame. The circulating pump is mounted on a mounting base via a second anti-vibration sheet by an arch-shaped fixed band,
Further, the mounting base is screwed to the base plate via the first vibration isolation sheet.

[0006]

The circulating pump 3 is mounted on the mounting base 6 via the second vibration isolating sheet 9 by means of an arch-shaped fixing band 10, and the mounting base 6 is screwed to the base plate 1 via the first vibration isolating sheet 7. Since the circulating pump 3 is stopped, the circulating pump 3 is fixed only by the fixing band 10 and the second vibration isolating sheet 9 is provided therebetween. Even if any vibration is propagated, the transmission to the base plate 1 is reliably prevented by the first vibration isolation sheet 9.

Therefore, the use of the double vibration-proof material for sandwiching the mounting table 6 and the fixed band 10 which does not directly screw the circulation pump 3 makes it possible to reliably prevent noise caused by the vibration of the circulation pump 3 and to achieve a very quiet operation. It is easy to use.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a circulating pump mounting structure according to the present invention. Reference numeral 1 denotes a base plate constituting the bottom of the body frame of the water heater, and a number of small holes 2 for screwing are formed near one side.

Reference numeral 3 denotes a self-priming circulation pump provided in the middle of a circulation circuit (not shown) connecting the bathtub and the bath heat exchanger.
A connection port 4 to a pipe and a connection line 5 to a drive circuit are provided.

Reference numeral 6 denotes a box-shaped mounting base having three raised ends, and four screws 8 via a first anti-vibration sheet 7 formed by cutting a foamed neoprene rubber into a sheet on the base plate 1. It is fixed by.

On the mounting table 6, a lower portion is fitted to a second vibration isolating sheet 9 made of foamed neoprene rubber formed in a saucer shape, and the circulating pump 3 is mounted thereon. The circulating pump 3 is indirectly mounted on the mounting base 6 with the fixing band 10 by fixing the metal-made arch-shaped fixing band 10 wrapped around the mounting base 6 with screws 11.

Further, screws 8 for fixing the mounting table 6 include:
A rubber cushion material 12 is provided for each of the screws 8.
Are covered so as to prevent the vibration from being transmitted to the base plate 1 even if the vibration is transmitted to the screw 8.

Next, a method of mounting the circulating pump 3 of this embodiment will be described. First, the mounting table 6 is placed on the base plate 1 via the first vibration isolating sheet 7, and from below the base plate 1. The mounting table 6 is screwed to the base plate 1 with the four screws 8 via the cushion material 12.

Then, after the molded second vibration isolating sheet 9 is fitted into the fixed mounting table 6, this second
The lower part of the circulating pump 3 is inserted into the vibration isolating sheet 9, the fixing band 10 is hung from above, and the mounting base 6 is
, The circulating pump 3 can be securely mounted without being directly connected to the base plate 1.

Therefore, the mounting table 6 directly fixed to the base plate 1 is sandwiched between the first and second vibration isolating sheets 7 and 9, and the circulation pump 3 is indirectly mounted thereon by the fixing band 10. Thus, the vibration when the circulating pump 3 is driven is not directly connected to the mounting table 6 and thus is difficult to be transmitted to the mounting table 6. Even if it is transmitted, the vibration is prevented by the two vibration isolating sheets 7 and 9. Since the transmission to the base plate 1 is surely prevented, it can be used without worrying about noise and can be used with peace of mind, and is particularly suitable for a wall-mounted water heater.

Further, since the screw 8 for fixing the mounting table 6 is screwed via the cushion material 12, even if the vibration of the circulating pump 3 is transmitted to the mounting table 6, the base 8 is provided via the screw 8. This vibration can be reliably prevented from being transmitted to the plate 1, and a double or triple vibration-proof structure eliminates noise.

[0017]

In summary, the present invention relates to a method of fixing a circulating pump on a base plate constituting a body frame, wherein the circulating pump is attached via a second anti-vibration sheet by an arch-shaped fixing band. It is mounted on a base, and this mounting base is screwed to the base plate via the first vibration isolating sheet, so that the vibration at the time of driving the circulation pump is not transmitted to the base plate, and the noise due to the vibration is reduced. It is possible to provide a device that can be reliably used by always preventing the occurrence.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a mounting structure of a circulation pump to which an embodiment of the present invention is applied.

FIG. 2 is a sectional view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base plate 3 Circulation pump 6 Mounting stand 7 1st vibration-proof sheet 9 2nd vibration-proof sheet 10 Fixed band

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shigeki Murayama 7-7 Higashi Shinbo, Sanjo City, Niigata

Claims (1)

[Claims] 1. A circulating pump fixed to a base plate constituting a body frame, wherein the circulating pump is mounted on a mounting table via a second vibration isolating sheet by an arch-shaped fixing band. And a mounting structure for the circulating pump, wherein the mounting base is screwed to the base plate via the first vibration isolation sheet.