JP7123873B2 - Pump system and housing for pump - Google Patents

Description

The present invention relates to a pump system and a pump housing.

A beam of a housing on which a rotating body such as a pump is mounted requires high rigidity in order to generate vibration. In a pump system with multiple pumps such as a water supply unit, the pumps are arranged side by side, and the beams that support them become long, and there is concern about the beams bending. It is effective to put a support in the center of the beam to suppress the deflection of the beam, but it is difficult to shorten the beam because pipes and valves are mounted inside the pump system. On the other hand, in order to increase the rigidity of the beams in order to suppress deflection, it is necessary to increase the plate thickness of the beams, so the beams are formed with a welded structure. However, in recent years, due to the decreasing number of skilled workers, etc., it is desired to construct a housing without welding work from the viewpoint of safety during work and manufacturing cost.

As a background art of this technical field, there is Japanese Patent No. 5889226 (Patent Document 1). In this publication, ``In a case in which panels having reinforcing parts on the sides are joined to form a housing in which an electronic device is housed, first and second surfaces joined by the sides and having main surfaces orthogonal to each other are described in this publication. 2 panels and an L-shaped plate surface portion, the corner portion of which is disposed at the corner portion of the joining side portion of the first and second panels, and one side of the L-shaped plate surface portion extends from the corner portion to the second panel. The other side of the L-shaped plate surface portion is reinforced extending from the corner portion in the direction perpendicular to the joint side of the second panel. At least three fastening holes that are spaced apart in the longitudinal direction or the width direction from the central portion of the one side and the other side to the distal end side of the central portion of the one side and the other side and away from the corners and respectively fastened to the corresponding reinforcements” (see abstract).

Further, as a background art of this technical field, there is Japanese Unexamined Patent Application Publication No. 2002-168199 (Patent Document 2). This publication states, "A direct-coupled automatic water supply device is provided with a first pedestal installed at a predetermined location. A second pedestal having a smaller shape than the first pedestal is installed, The second pedestal is supported by the bottom plate for vibration isolation via the first vibration isolator The second pedestal increases the pressure of tap water flowing into the suction pipe and supplies it to the discharge pipe. A pump assembly having a turbine pump with vibration inside is installed.The pump assembly is anti-vibrationally supported by a second mount via a second vibration isolator.The pump assembly and the second mount are: covered by the pump cover.” (see abstract).

Japanese Patent No. 5889226 Japanese Patent Application Laid-Open No. 2002-168199

However, the techniques disclosed in Patent Literatures 1 and 2 use a welding technique to form the housing in order to increase the rigidity of the housing, and there is a problem that the welding operation requires a manufacturing cost.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a pump system and a pump housing that enable manufacturing of a highly rigid housing without using welding work, thereby reducing manufacturing costs.

In order to solve the above problems, the present invention includes a housing having a plurality of fastened metal plates, and at least one pump mounted on the housing, wherein the housing includes a plurality of Supports and end members, which are rectangular frames in a top view, are fastened to both ends of the plurality of supports, and each support has a vertical direction as a longitudinal direction and a plate width direction that intersects with each other. A shaft portion where two plates are joined, and from one plate of the shaft portion in the direction of one side of the rectangular shape, and from the other plate in the direction of the other side that intersects with the one side of the rectangular shape, respectively. Each of the end members includes a single rectangular base portion and an overhang portion extending upward or downward from each side of the rectangular base portion. wherein one end of the shaft is positioned between one of the protrusions and another protrusion adjacent thereto, and a corner formed by the shaft and the extension and a corner of the projecting portion are in contact with each other, and a reinforcing member is applied to the support and the end member, the shaft portion, the extending portion and the reinforcing member, the end member and the reinforcing member and are concluded respectively.

Advantageous Effects of Invention According to the present invention, it is possible to provide a pump system and a pump housing that enable manufacturing of a highly rigid housing without using a welding operation, thereby reducing manufacturing costs.
Problems, configurations, and effects other than those described above will be clarified by the following description of the embodiments.

1 is a perspective view of a pump system according to Example 1 of the present invention; FIG. 1 is a perspective view of a housing frame in the pump system according to Example 1 of the present invention; FIG. FIG. 2 is an exploded perspective view of part of the housing frame in the pump system according to Example 1 of the present invention; FIG. 2 is a perspective view of part of a housing frame to which members are fastened in the pump system according to Example 1 of the present invention; FIG. 7 is an exploded perspective view of part of a housing frame in the pump system according to Example 2 of the present invention; FIG. 7 is a perspective view of part of a housing frame to which each member is fastened in the pump system according to Example 2 of the present invention; FIG. 11 is an exploded perspective view of part of the housing frame in the pump system according to the third embodiment of the present invention; FIG. 11 is a perspective view of part of a housing frame to which members are fastened in a pump system according to Example 3 of the present invention; FIG. 11 is a perspective view of the end frame, the struts, and the reinforcing member to be riveted together in the pump system according to the third embodiment of the present invention, as seen from the back side; FIG. 11 is a perspective view of the end frame, the struts, and the reinforcing member to be riveted together in the pump system according to the third embodiment of the present invention, as seen from the back side; FIG. 11 is an exploded perspective view of part of a housing frame in a pump system according to Example 4 of the present invention; FIG. 11 is a perspective view of part of a housing frame to which members are fastened in a pump system according to Example 4 of the present invention; FIG. 11 is a perspective view of a housing frame in a pump system according to Example 5 of the present invention; FIG. 11 is an enlarged perspective view of a pump mounting portion in a housing frame in a pump system according to Example 5 of the present invention; FIG. 15 is an enlarged view of a portion of FIG. 14; FIG. 11 is a partial perspective view showing a support structure for a pump mounting portion in a pump system according to Example 5 of the present invention;

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a pump system 50 according to the first embodiment. This pump system 50 is a water supply device. The pump system 50 includes a housing frame (pump housing) 1 that supports the entire apparatus, a control frame 2 that is installed on the housing frame 1 and houses a control unit 4, and a unit that is housed in the housing frame 1. It is composed of a unit portion 3 which is a device, a control portion 4 for controlling devices of the unit portion 3 such as a pump 3c, and the like. In addition, the code|symbol 5 is a pump mounting part.

The unit section 3 includes a suction pipe 3a, a pressure-reducing backflow preventer 3b, a pump 3c, a discharge pipe 3d, a pressure tank 3e, a bypass pipe 3f, a suction pressure sensor 3s1, and a discharge pressure sensor 3s2. Three pumps 3c are provided in the example of FIG. 1, but at least one may be provided. In the unit part 3, the internal fluid flows from the suction pipe 3a to the decompression type backflow preventer 3b, the pump 3c, and the discharge pipe 3d. fluid is supplied.

The control unit 4 is housed in the control frame 2 installed on the upper part of the housing frame 1, and mainly has an earth leakage circuit breaker 4a, an inverter 4b, a control board 4c and other electronic devices. In the water supply unit, pressure values obtained from the suction pressure sensor 3s1 and the discharge pressure sensor 3s2 are taken into the control board 4c, and the inverter 4b is controlled to operate the pump 3c at variable speed.

FIG. 2 is a perspective view of the housing frame 1. FIG. The housing frame 1 includes a plurality of metal plates, a shelf-shaped pump mounting portion 5 , a plurality of support posts 21 (four in this example), and two end frames (end members) 22 . The pillars 21 are provided at four corners of the housing frame 1 when viewed from the top, with the longitudinal direction being the vertical direction. End frames 22 are fastened to the upper and lower ends of the pillars 21, respectively. The end frame 22 is a rectangular frame when viewed from above. A pump mounting portion (not shown) is fastened to the column 21 at an intermediate position in the height of the column 21 and supports the pump 3c and the like.

By the way, when assembling the housing frame 1, if the metal plates are simply fastened with rivets or the like in order to eliminate the need for welding, the housing frame 1 is vulnerable to vibration, and the end frames 22 may come off the support columns 21 due to the vibration. There is a risk of In the following, solutions to these problems in the housing frame 1 of the pump system 50 will be described.

FIG. 3 is an exploded perspective view of part of the housing frame 1. FIG. FIG. 4 is a perspective view of part of the housing frame 1 to which each member is fastened. The end frames 22 are respectively fastened to the upper and lower ends of the four columns 21 . 3 and 4 show a part of the end frame 22 fastened to the upper end of the support 21 and the upper part of the two supports 21. FIG.

Each post 21 is formed by shearing and bending two plates 21a and 21b (first plate portion 21a and second plate portion 21b) whose longitudinal direction is the vertical direction and whose width directions intersect (perpendicular to) each other. A shaft portion 21c having an L-shaped cross section and extending in the vertical direction is provided. Each post 21 extends from one plate 21a of the shaft portion 21c to one side of the rectangular shape of the end frame 22, and from the other plate 21b to another side that intersects the rectangular side of the end frame 22. and an extension portion 21d extending in each direction. The extending portion 21d extending from the side end of the first plate portion 21a is flush with the first plate portion 21a, and the extending portion 21d extending from the side end of the second plate portion 21b is flush with the first plate portion 21a. The extending portion 21d has, for example, a triangular shape, the upper end edge 21e is horizontal, and the lower end edge becomes higher toward the tip and has a tapered shape.

The end frame 22 includes a base portion 22a that is a single rectangular plate member, and projecting portions 22b that are rectangular plate members that extend downward from each side of the rectangular shape of the base portion 22a. . The projecting portion 22b is formed by shearing and bending.
The end portion 21g of the shaft portion 21c of the post 21 is fitted into each rectangular corner portion of each end frame 22, and the end portion 21g is shaped so as to be flush with the projecting portion 22b. A gap 41 having a shape corresponding to that is provided. That is, there is a gap 41 between one projecting portion 22b and another adjacent projecting portion 22b. Further, the upper edge 21e of the extending portion 21d and the lower edge 22c of the projecting portion 22b are in contact with each other so as to form a horizontal straight line.

A reinforcing member 26 is interposed to join the strut 21 and the end frame 22 . The reinforcing member 26 is a member formed by shearing and bending a single sheet metal so that the plane directions thereof are perpendicular to each other. The column 21 and the end frame 22 are brought into contact with each other as shown in FIG. and reinforcing member 26 are fastened with rivets 100, respectively. Thereby, the strut 21 and the end frame 22 can be joined.

Specifically, as shown in FIGS. 3 and 4, the rivet holes A1 of the extending portion 21d and the shaft portion 21c and the rivet holes B1 of the reinforcing member 26 are fastened with rivets 100. As shown in FIG. A rivet 100 is used to fasten the rivet hole A2 of the extending portion 21d and the shaft portion 21c to the rivet hole B2 of the reinforcing member . The rivet hole A3 of the end frame 22 and the rivet hole B3 of the reinforcing member 26 are fastened with the rivet 100. As shown in FIG. The rivet hole A4 of the end frame 22 and the rivet hole B4 of the reinforcing member 26 are fastened with the rivet 100. As shown in FIG. The rivet hole A5 of the end frame 22 and the rivet hole B5 of the reinforcing member 26 are fastened with the rivet 100. As shown in FIG. If the rivets 100 are fastened at each position in this manner, the reinforcing member 26 is hidden behind the end frame 22 and the strut 21 and cannot be seen from the outside.

According to the pump system 50 described above, in the housing frame 1 in a state where each part is fastened with the rivets 100, the upper edge 21e of the extending portion 21d and the lower edge 22c of the extending portion 22b form a horizontal straight line ( flush) (contact portion F). Therefore, even if the rivets 100 are loosened due to vibration or the like when a load is applied from the upper part of the housing frame 1, it is possible to reduce the possibility that the pillars 21 and the end frames 22 will come off. Further, it is possible to provide the pump system 50 capable of reducing the manufacturing cost by making it possible to manufacture the housing frame 1 with high rigidity only by the fastening work using the sheet metal rivets 100 without using the welding work. In addition, unlike welding, the strength differs depending on whether the skill is good or bad, and anyone can manufacture the housing frame 1 with stable quality.

Such a relationship of the contact portion F is the same at the fastening portion between the support 21 on the bottom side and the end frame 22 shown in FIG. However, on the bottom side, the lower edge of the extending portion 21d and the upper edge of the projecting portion 22b contact each other in a horizontal straight line, and the end frame 22 supports the load on the column 21 side.
In addition, unlike the welding technique, the strength of the housing frame 1 does not vary depending on the skill of the technician, and anyone can manufacture the housing frame 1 with stable quality.

Embodiment 2 In each of the following embodiments, the same reference numerals as those in Embodiment 1 are used for the members and the like that are common to those in Embodiment 1, and detailed description thereof will be omitted. FIG. 5 is an exploded perspective view of part of the housing frame 1A in the pump system 50 according to the second embodiment. FIG. 6 is a perspective view of part of the housing frame 1A to which the members are fastened.
The second embodiment differs from the first embodiment in that, as shown in FIGS. 5 and 6, in the protruding portion 22b, the vertical side of the end portion 22b1 on the support 21 side is closer to the vertical direction side than the longitudinal intermediate portion 22b2. is provided with a notch 22d that becomes larger. The edge of the notch 22d is positioned on the extended line of one side (lower edge 21f) of the extension 21d that is not in contact with the extension 22b.

Since the end frame 22 has such a notch 22d, the opening of the housing frame 1A (pump housing) becomes wider than in the first embodiment. Therefore, it is easy to assemble the housing frame 1A, and it is suitable for the scenery. In addition, since the edge of the notch 22d is positioned on the extended line of one side (lower edge 21f) of the extending portion 21d that is not in contact with the projecting portion 22b, it is possible to enhance the design and improve the strength of the housing frame 1A. can be done.
Note that the notch 22d may be formed in the projecting portion 22b on the front facing the housing frame 1A, and may not be formed in the projecting portion 22b on the rear or on the left and right sides of the housing frame 1A. good. Of course, cutouts 22d may be formed in the rear or left and right overhanging portions 22b of the housing frame 1A.

FIG. 7 is an exploded perspective view of part of the housing frame 1B in the pump system 50 according to the third embodiment. FIG. 8 is a perspective view of part of the housing frame 1B to which the members are fastened.
The third embodiment differs from the first embodiment in that a reinforcing member 27 is used instead of the reinforcing member 26 of the first embodiment, as shown in FIGS. The reinforcing member 27 extends from one strut 21 to another adjacent strut 21 , and can perform fastening with two struts 21 and the end frame 22 . Both end portions 27a of the reinforcing member 27 have substantially the same configuration as in the second embodiment. A longitudinal intermediate position 27 b of the reinforcing member 27 is fastened to the end frame 22 with a rivet 100 . Fastening between each of the end portions 27a of the reinforcing member 27, the strut 21 and the end frame 22 is the same as in the first embodiment. At an intermediate position 27b in the longitudinal direction of the reinforcing member 27, the rivet hole A6 of the end frame 22 and the rivet hole B6 of the reinforcing member 27 are fastened with a rivet 100. As shown in FIG.

9 and 10 are perspective views of the end frame 22, the struts 21, and the reinforcing member 27 fastened with the rivets 100 of FIG. 9 and 10 are viewed from different angles.
Thus, by fastening the longitudinal intermediate position 27b of the reinforcing member 27 and the end frame 22, the rigidity of the housing frame 1B can be increased more than that of the first embodiment.
Moreover, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations. In addition, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Moreover, it is also possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.

FIG. 11 is an exploded perspective view of part of the housing frame 1C in the pump system 50 according to the fourth embodiment. FIG. 12 is a perspective view of part of the housing frame 1C to which the members are fastened.
The fourth embodiment differs from the second embodiment in that each corner of the end frame 22, which is rectangular when viewed from the top, is divided by dividing portions 22e. Since the end frame 22 is divided at the corners, if the weight of the pump 3c or the like is heavy, a thick material is used for the left and right frame portions of the rectangular end frame 22 in top view to increase the strength. be able to. In addition, it is possible to adapt to various types of pump systems 50 by changing the length and thickness of the front and rear frame portions and the left and right frame portions of the rectangular end frame 22 when viewed from above. can do.

FIG. 13 is a perspective view of the housing frame 1E in the pump system 50 according to the fifth embodiment. The pump mounting portion 31 is fastened to the column 21 at an intermediate position in the height of the column 21 and supports the pump 3c and the like.

FIG. 14 is an enlarged perspective view of the pump mounting portion 31 portion in the housing frame 1E. The pump mounting portion 31 has first columnar members 32 on both sides thereof. The first columnar member 32 is a shaft-shaped member, and both ends thereof are respectively fastened to the two left and right support columns 21 when viewed from the front of the housing frame 1E. The pump mounting portion 31 has two beams 33 and 34 . A beam 33 spans between the longitudinally intermediate positions of the two first columnar members 32 , and both ends of the beam 33 are joined to the respective first columnar members 32 . A beam 34 spans between the rear ends of the two first columnar members 32 in the longitudinal direction, and both ends of the beam 34 are joined to the rear ends of the respective first columnar members 32 . there is A plurality of second columnar members 35 are spanned between the beams 33 and 34 at predetermined intervals, and both ends thereof are joined to the beams 33 and 34, respectively.

15 is an enlarged view of part of FIG. 14, and FIG. 16 is a partial perspective view showing the support structure of the pump mounting portion 31. As shown in FIG. An extending portion 21 d is provided at an intermediate height position for supporting the pump mounting portion 31 of each column 21 . The lower ends of both ends of the two first columnar members 32 of the pump mounting portion 31 are in contact with the upper edges 21e of the extensions 21d and supported by the extensions 21d. The first columnar member 32 and the fastening member 36 (FIG. 14) are fastened together by a rivet 100 serving as a fastening member. Further, the extension portion 21d and the fastening member 36 are fastened by a rivet 100 serving as a fastening member.

According to the pump system 50 described above, in the housing frame 1E in which each part is fastened with the rivets 100, the upper edge 21e of the extension part 21d and the lower edge of the first columnar member 32 form a horizontal straight line ( face-to-face). Therefore, even if the rivet 100 loosens due to vibration or the like when a load is applied from the upper portion of the housing frame 1E, it is possible to reduce the possibility that the column 21 and the pump mounting portion 31 will come off. Further, it is possible to provide the pump system 50 that can reduce the manufacturing cost by making it possible to manufacture the housing frame 1E with high rigidity only by the fastening work using the sheet metal rivets 100 without using the welding work. In addition, unlike welding, the strength differs depending on whether the skill is good or bad, and anyone can manufacture the housing frame 1 with stable quality.

In addition, unlike the welding technique, the strength of the housing frame 1 does not vary depending on the skill of the technician, and anyone can manufacture the housing frame 1 with stable quality.

1, 1A housing frame (pump housing)
3c pump 4 control unit 21 strut 21a plate (first plate portion)
21b plate (second plate portion)
21c shaft portion 21d extension portion 21e upper edge 21f lower edge (one side)
21g tip 22 end frame (end member)
22a Base 22b Overhang 22b1 End 22b2 Longitudinal middle part 22c Bottom edge 22d Notch 26 Reinforcement member 27 Reinforcement member 27b Longitudinal middle position 31 Pump mounting part 100 Rivet (fastening member)

Claims (7)

a housing having a plurality of fastened metal plates;
At least one pump mounted on the housing,
The housing is
a plurality of pillars;
and end members that are rectangular frames in a top view that are respectively fastened to both ends of the plurality of columns,
Each of the struts
The first plate portion and the second plate portion having a vertical direction as a longitudinal direction have an L-shaped cross section and a shaft portion extending in the vertical direction,
each of the first plate portion and the second plate portion has an extension portion extending outward from each side end in the lateral direction so as to be flush with each other;
Each of the end members is
one rectangular base;
and an overhang extending upward or downward from each side of the rectangular shape of the base,
A gap having a shape corresponding to the shape of the tip portion so that the tip portion of the shaft portion is fitted to each corner portion of the rectangular shape of each of the end members so that the tip portion is flush with the projecting portion. is equipped with
When the gap is fitted to the tip of the shaft, the edge of the overhanging portion and the edge of the extending portion are in contact with each other, and
A reinforcing member is applied to the support column and the end member, and the shaft portion, the extension portion, the reinforcing member, and the end member and the reinforcing member are fastened by fastening members, respectively. pump system. The projecting portion has a notch in which the vertical direction side of the end portion on the support side is wider than the vertical direction side of the longitudinal intermediate portion,
2. The pump system according to claim 1, wherein an edge of said notch is positioned on an extension line of one side of said extending portion that is not in contact with said extending portion. 3. A pump system according to claim 1 or claim 2, wherein the reinforcing member extends from one strut to another adjacent strut and is fastened to the end member at an intermediate longitudinal position. 4. The pump system according to any one of claims 1 to 3, wherein a control section for controlling the pump is provided on an upper portion of the housing. a housing having a plurality of fastened metal plates;
At least one pump mounted on the housing,
The housing is
a plurality of pillars;
a pump mounting portion that is fastened to each of the plurality of columns at an intermediate height position to support the pump;
each of the struts has an extension extending laterally from the intermediate height;
the upper edge of each extending portion and the lower edge of the pump mounting portion are in contact,
A pump, wherein a reinforcing member is attached to the strut and the pump mounting portion, and the extending portion and the reinforcing member, and the pump mounting portion and the reinforcing member are respectively fastened by fastening members. system. a plurality of pillars;
and end members that are rectangular frames in a top view that are respectively fastened to both ends of the plurality of columns,
Each of the struts
The first plate portion and the second plate portion having a vertical direction as a longitudinal direction have an L-shaped cross section and a shaft portion extending in the vertical direction,
each of the first plate portion and the second plate portion has an extension portion extending outward from each side end in the lateral direction so as to be flush with each other;
Each of the end members is
one rectangular base;
and an overhang extending upward or downward from each side of the rectangular shape of the base,
A gap having a shape corresponding to the shape of the tip portion so that the tip portion of the shaft portion is fitted to each corner portion of the rectangular shape of each of the end members so that the tip portion is flush with the projecting portion. is equipped with
When the gap is fitted to the tip of the shaft, the edge of the overhanging portion and the edge of the extending portion are in contact with each other, and
A reinforcing member is applied to the support column and the end member, and the shaft portion, the extension portion and the reinforcing member, and the end member and the reinforcing member are respectively fastened by fastening members,
A housing for a pump, characterized in that at least one pump is mounted. a plurality of pillars;
a pump mounting portion that is fastened to an intermediate height position of each of the plurality of columns and supports at least one pump;
each of the struts has an extension extending laterally from the intermediate height;
the upper edge of each extending portion and the lower edge of the pump mounting portion are in contact,
A pump, wherein a reinforcing member is attached to the strut and the pump mounting portion, and the extending portion and the reinforcing member, and the pump mounting portion and the reinforcing member are respectively fastened by fastening members. housing for

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