JPH0656650U - Pump support stand - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a pump support stand that prevents noise due to vibration of a pump body used in a water heater or the like. [Structure] In a pump support structure in which the pump body (C) is mounted on the support member for supporting the pump via the vibration isolating rubber structures (D1) and (D2), the vibration isolating rubber structure (D1) ( D2) is composed of a laminated layer of anti-vibration rubber (3) (7) that absorbs vibrations in one direction in the plane and in the vertical direction, and the anti-vibration rubber alone (3) (7)
The upper and lower layers of the anti-vibration rubber unit (3) and (7) absorb the plane vibration and are vertically orthogonal to each other. A pump support stand that is arranged accordingly.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pump support frame that prevents noise caused by vibration of a pump body used in a water heater or the like.

[0002]

[Prior art]

 Conventionally, a water pump or the like uses a circulation pump for circulating water or hot water inside the water heater, but in order to hold the pump body in the water heater casing, a pump support frame is placed on the bottom of the casing. Was installed, and a vibration-proof rubber unit was installed on the pump support frame to reduce the vibration generated when the pump was driven.

[0003]

[Problems to be solved by the device]

 However, the pump support frame having the above structure has the following drawbacks.

That is, the anti-vibration rubber simple substance has an H-shaped cross section as shown in FIG. 4, and its vibration absorption characteristics have directionality. That is, as shown in FIG. 4, the vibration in the vertical direction (Z direction) and the vibration in one direction on the horizontal plane (X direction) can be effectively absorbed.

However, there is a drawback that the vibration damping effect is small with respect to the vibration in the direction on the horizontal plane (Y direction) orthogonal to the X direction.

Therefore, the vibration in the Y direction easily propagates to the casing, which is a cause of noise generated from the machine base when the pump is driven.

An object of the present invention is to provide a pump support stand that can solve the above problems.

[0008]

[Means for Solving the Problems]

 According to the present invention, in the pump support structure in which the pump main body is mounted on the support member for supporting the pump through the vibration isolating rubber structure, the vibration isolating rubber structure is used for the vibration in the plane one direction and the vertical direction. Is formed by laminating a single layer of anti-vibration rubber that absorbs and isolates vibrations, and the single layer of anti-vibration rubber is configured to be laminated in two layers, upper and lower, and is capable of absorbing both vertical vibrations. The single unit provides a pump support frame in which the absorption directions for absorbing plane vibration are vertically arranged so as to be orthogonal to each other.

[0009]

【Example】

 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described. First, FIG. 1 is a view showing an internal structure of a water heater B in which a pump support stand A of the present invention is installed. The water heater B is a one-can / two-circuit type water heater, and in the casing 51, a heat exchanger 52, a burner 53, and a blower 54 are installed from the upper part to the lower part.

In addition, a water heater B and a circulation pump C forming a part of a reheating circuit formed between bath tubs (not shown) are disposed at a lower portion on one side inside the water heater B.

The gist of the present invention is to prevent the vibration generated when the circulation pump C is driven from propagating to the water heater casing 51 as much as possible, and effectively reduce the noise caused by the circulation pump C. It is in the structure of a possible pump support base A.

The structure of the pump support base A of the present invention will be described in detail below.

As shown in FIGS. 1 and 2, the circulation pump C includes a pump body C1 and a motor C2 that drives an impeller in the pump body C1.

The circulation pump C is fixedly supported on a rectangular plate-shaped pump base 1 by a deviation preventing member such as a rising piece 1d and an upper protruding portion 1a described later.

The circulation pump C having such a configuration, as shown in FIG. 1, is capable of absorbing vibrations in the vertical direction (Z direction) and in the one plane direction (Y direction) generated when the circulation pump C is driven. Via one anti-vibration rubber structure D1 and similarly a second anti-vibration rubber structure D2 capable of absorbing vibrations in the vertical direction (Z direction) and in the other horizontal direction (X direction) orthogonal to the one direction in the plane. And is placed on the support member. Here, the support member is the bottom plate of the water heater casing 51.

With this configuration, in the present embodiment, the vibrations in the three-dimensional directions (X, Y, Z directions) that occur when the circulation pump C is driven are generated by the above-described first and second vibration isolation structures D1 and D2. Can be effectively absorbed by using.

That is, the first anti-vibration rubber structure D1 and the second anti-vibration rubber structure are laminated in two layers, and the anti-vibration rubber simple substance constituting each anti-vibration rubber structure is absorbed by the planar vibration absorption member. Since the collecting directions are arranged so that they are perpendicular to each other, the first vibration isolation rubber structure absorbs vibrations in the Z and Y directions, and the second vibration isolation rubber structure absorbs vibrations in the Z and X directions. It can be absorbed.

Therefore, the composite vibration generated by the drive of the circulation pump C can be remarkably reduced from propagating to the casing 51 of the water heater B, and the generation of noise due to the drive of the circulation pump C can be surely suppressed. You can

Although various forms are conceivable as the first and second vibration isolation structures, the present embodiment has the following configuration.

That is, the first anti-vibration structure D1 is composed of the first pump mounting plate 2, the first anti-vibration rubber unit 3 and the left and right lateral surface mounting brackets 4,5, and the second anti-vibration structure D2 is the second anti-vibration structure D2. It consists of a pump mounting plate 6, a second anti-vibration rubber unit 7, and front and rear pump mounting brackets 8, 9.

Next, a specific configuration of each member in this embodiment will be described.

First, in the pump base 1, the left and right ends of the flat plate-like body are bent upward to form a rising piece 1d, and the rising piece 1d serves as a fixed guide for the pump body C in the left-right direction.

Further, an upper protruding portion 1a protruding upward is provided on an upper portion of the pump base 1, and an upper edge portion of the protruding portion 1a holds a cylindrical lower side surface portion of the pump body C. Therefore, the upper projection 1a and the pump body C are fixed by screws while being formed in an arcuate recess, and the lower side surface of the pump body C is held in the recess.

Further, an opening 1c for inserting a horizontally long rectangular positioning piece is formed in the plate-like portion near the base end of the upper protruding portion 1a. On the other hand, at the center of the front end of the pump base 1, an apron piece 1b is formed downward.

A first pump mounting plate 2 is provided on the lower surface of the pump base 1 in an overlapping state. The first pump mounting plate 2 has a flat plate shape, and the front end of the plate-shaped portion is bent downward. To form a downward protruding piece 2a, and the protruding piece 2a and the apron piece 1b of the pump base 1 are screwed together in a superposed state.

In addition, a horizontally elongated rectangular opening 2e is formed in the center of the plate-shaped portion of the first pump mounting plate 2, and a V-shaped positioning piece is formed upward from the upper end of the opening 2e. 2b is provided, and the positioning piece 2b penetrates the opening 1c provided in the pump base 1 and projects upward from the surface of the pump base 1, and the bending surface of the positioning piece 2b has a pump main body C. It is configured to hold the lower side surface part.

The first pump mounting plate 2 has two sets of left and right ear pieces 2c, 2d protruding in the left-right horizontal direction at the four corners of the plate-shaped portion, and the four first vibration isolation pieces are provided on the same ear pieces 2c, 2d. The rubber unit 3 is laterally fitted.

As shown in FIG. 4, the first anti-vibration rubber unit 3 includes two lower protrusions 3 a having an inverted trapezoidal cross section on the lower surface of a flat rectangular rubber body and two trapezoidal cross sections on the upper part. It has a substantially H-shaped cross section having a book upper projection piece 3b, and a flat rectangular insertion hole 3c penetrating in the horizontal direction is provided at the center of the vibration isolating rubber unit 3.

Then, the left and right ear pieces 2c, 2d of the first pump mounting plate 2 are fitted into the same insertion holes 3c, and the first rubber vibration isolator 3 is installed laterally with respect to the first pump mounting plate 2. .

Left and right pump lateral surface mounting brackets 4,5 are installed on the left and right sides of the first pump mounting plate 2, and the brackets 4,5 are provided in the central portion of the lower surface of the elongated plate-shaped main body. It has projecting portions 4b and 5b, and storage spaces 4a and 5a capable of accommodating the first anti-vibration rubber unit 3 are formed on both sides of the projecting portions 4b and 5b.

With the first anti-vibration rubber 3 stored in the storage spaces 4a, 5a, the protruding portions 4b, 5b at the center of the left and right pump lateral mounting brackets 4, 5 are mounted on the first pump mounting plate. It is fixed on a second pump mounting plate 6 which is provided below 2 in an overlapping state.

With the above configuration, by fixing the left and right pump lateral surface mounting brackets 4 and 5 on the second pump mounting plate 6, the first anti-vibration rubber unit 3 is held at the four corners of the second pump mounting plate 6. The anti-vibration rubber structure D1 is formed, and the pump body C, the pump base 1, and the first pump attachment plate 2 are supported on the second pump attachment plate 6 via the first anti-vibration rubber unit 3. The Rukoto.

Since the first anti-vibration rubber unit 3 is laterally fitted to the first pump mounting plate 2, among the vibrations generated in the pump main body C, particularly in the Z direction and the horizontal plane. It absorbs the vibration in the upper Y direction.

In the present invention, the vibration isolation rubber structure D1 has a lower stage to absorb vibrations in a direction (X direction) orthogonal to a vibration direction that the vibration isolation rubber structure D1 can absorb on a horizontal plane. It is characterized by the provision of a vibration-proof rubber structure D2 in which a rubber unit is arranged.

That is, two sets of front and rear ear pieces 6a, 6b protruding in the front-rear direction are provided at the four corners of the plate portion of the flat plate-shaped second pump mounting plate 6, and the first ear pieces 6a, 6b are provided with the first protection pieces. Four second anti-vibration rubber single bodies 7 each having an H-shape which is substantially the same shape as the single vibration rubber single body 3 are vertically fitted. The left and right ends of the second pump mounting plate are bent upward to form a rising piece 6c, and the rising piece 6c is used as a fixed guide in the left and right direction of the vibration-proof rubber structure D1.

Further, front and rear pump mounting brackets 8 and 9 are provided on the front and rear sides of the second pump mounting plate 6, and the second vibration isolating rubber simple substance 7 is provided on the upper and lower sides and the outer side of the front and rear pump mounting brackets 8 and 9. It has storage spaces 8a and 9a that can be stored with the side surfaces covered. Supporting portions 8b and 9b are extended below the storage spaces 8a and 9a, and lower ends of the supporting portions 8b and 9b are horizontally bent to form fixed pieces 8c and 9c, which are fixed to each other. The pieces 8c, 9c and the bottom plate portion of the casing 51 are screwed to each other with screws or the like.

Then, the second anti-vibration rubber unit 7 is housed in the storage spaces 8a, 9a of the front and rear pump mounting brackets 8, 9 having the above-described configuration to form the anti-vibration rubber structure D2, and at the same time, for the pump support member. By fixing the front and rear pump mounting brackets 8 and 9 on the bottom plate of the casing 51, the second pump mounting plate 6 is placed via the second anti-vibration rubber unit 7.

As described above, by installing the second anti-vibration rubber unit 7 in the vertical direction with respect to the second pump mounting plate 6, the single rubber unit 7 is oscillated in the Z direction and in the X direction on the horizontal plane. It absorbs.

Since the antivibration rubber structure D2 having the above-described configuration is provided in the lower stage of the antivibration rubber structure D1, it is orthogonal to the installation direction of the first antivibration rubber unit 3 of the antivibration rubber structure D1. The second anti-vibration rubber unit 7 is installed in each direction to absorb the vibration in the Z direction, and the anti-vibration rubber structure D2 suppresses the vibration in the X-direction on the horizontal plane which could not be absorbed by the anti-vibration rubber structure D1. It became possible to absorb.

The first anti-vibration rubber unit 3 and the second anti-vibration rubber unit 7 act as vibration absorbers to absorb vibrations in the X, Y, and Z directions generated when the pump body B is driven. The vibration is prevented from propagating to the casing 51 and the noise due to the vibration is prevented.

[0041]

[Effect of device]

 According to the present invention, the pump main body is placed on the support surface for supporting the pump via the anti-vibration rubber structure, and the anti-vibration rubber structure absorbs vibrations in one direction in the plane and in the vertical direction. It consists of a vibration-isolating rubber unit, and the vibration-isolating rubber unit is laminated in two layers, upper and lower, to absorb the vibration in the vertical direction, and the vibration-isolating rubber units in the upper and lower layers absorb the plane vibration. It provides a pump support frame arranged so that the directions are up and down and orthogonal to each other.The plane vibration that cannot be sufficiently absorbed by one of the anti-vibration rubbers can be absorbed by the other anti-vibration rubber. Vibrations in the X, Y, and Z directions that occur during driving are absorbed by the upper and lower anti-vibration rubber structures, making it possible to prevent noise caused by the vibrations propagating to the casing.

According to the pump support stand of the present invention, the pump is stably held on the support member via the pump support stand, noise due to vibration of the pump is prevented, and noise generated when the water heater is used is reduced. Can be reduced.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a structure of a pump support base according to the present invention.

FIG. 2 is an explanatory view showing an installed state of the pump support base according to the present invention.

FIG. 3 is an explanatory view showing the structure of a water heater.

FIG. 4 is an explanatory view showing a single H-shaped anti-vibration rubber.

[Explanation of symbols]

 C Pump body D1 Anti-vibration rubber structure D2 Anti-vibration rubber structure 3 1st anti-vibration rubber unit 7 2nd anti-vibration rubber unit

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Yoshinori Kawasaki 43-1, Uozakihama-cho, Higashinada-ku, Kobe-shi, Hyogo Nihon Yupro Co., Ltd. Issue Nihon Yupro Co., Ltd. (72) Inventor Masahiro Hattori 43-1 Uozakihama-cho, Higashinada-ku, Kobe City, Hyogo Prefecture Nihon Yupro Co., Ltd. (72) Inventor Junichi Ishikawa 43-1 Uozakihama-cho, Higashinada-ku, Kobe City, Hyogo Prefecture Issue Nihon Yupro Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A support member for supporting a pump,
In the pump support structure in which the pump body (C) is placed via the anti-vibration rubber structure (D1) (D2), the anti-vibration rubber structure (D1) (D2) absorbs vibrations in one direction in the plane and in the vertical direction. The vibration-proof rubber single body (3) (7) is laminated by laminating the vibration-proof rubber single body (3) (7),
Both are constructed to be able to absorb vertical vibrations, and the upper and lower vibration isolation rubber units (3) and (7) are arranged so that the absorption directions for absorbing planar vibrations are arranged so that the absorption directions are perpendicular to each other. .