JP2001342969A - Pump control panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pump control panel eliminating the need of a large space for opening an opening/closing door, increasing a degree of freedom of installation place, and improving a workability in maintenance and inspection. SOLUTION: This pump control panel 1 comprises a box-shaped control panel body 2 having a plurality of pump control parts 4a to 4f disposed laterally in a row and having a laterally extended opening part 8, opened therein, allowing the pump control parts to be exposed to the front side and an opening and closing door 10 for opening and closing the opening part of the control panel body. The opening and closing door further comprises first and second door bodies 11a and 11b rotatably pivoted on the control panel body through a hinge shaft 15 extending vertically at both end parts along the longitudinal direction of the opening part and at least one third door body 11c rotatably pivoted on at least either of the first and second door bodies through the hinge shaft 15 extending vertically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump control panel used for, for example, an automatic water supply pump unit, and more particularly to a structure of an opening / closing door for opening and closing an opening of a control panel body.

[0002]

2. Description of the Related Art An automatic water supply pump unit having a plurality of pumps is equipped with a pump control panel for controlling the rotation speed, the number of operating pumps, and the like of each pump. This type of pump control panel has a flat box-shaped control panel main body, and the control panel main body is provided with a number of pump control units corresponding to the number of pumps. Further, the control panel body has a maintenance opening for exposing the pump controller on the front surface thereof, and the opening is opened and closed by an opening and closing door.

By the way, in a conventional pump control section,
In order to reduce the pressure fluctuation at the water supply terminal, the inverter controls the number of rotations of each pump,
There is known a pump that operates at a discharge pressure corresponding to a required water amount. In a pump control panel having a plurality of inverter-type pump control units, heat is generated during the operation of the inverters. It is common to arrange them in a line in a direction.

[0004]

However, according to this conventional configuration, since a plurality of pump control units are arranged in the horizontal direction, the width of the control panel body is increased, and the opening shape of the opening is elongated. Become. For this reason, if the opening and closing door that opens and closes the opening has a general double door structure having a pair of doors, the shape of each door becomes large.

[0005] Then, at the time of maintenance of the pump control panel, it is necessary to open the opening / closing door to expose a plurality of pump control sections from the opening, so that a large door body can be opened and closed around the pump control panel. We have to secure just enough space.

[0006] For this reason, it may be difficult to install the pump control panel, and if it is difficult to secure the space, the door cannot be completely opened, and
Problems such as impaired workability at the time of inspection occur.

[0007] In place of the double door structure,
If an openable / closable door or a sliding or telescopic openable / closable door that can be rotated upward or downward in the control panel body is adopted, the space problem can be solved for the time being.

However, since the door that can be turned upward or downward is an integrated structure that is elongated in the width direction of the control panel body, the door itself becomes heavy and large.
The workability when opening and closing the door is deteriorated. In addition, since the sliding and telescopic doors have a large number of parts and a complicated structure, the pump control panel becomes expensive.
Therefore, it cannot be an effective solution.

The present invention has been made in view of the above circumstances, and does not require a large space when opening the opening / closing door, increases the degree of freedom of an installation place, and improves workability during maintenance and inspection. The purpose is to provide an excellent pump control panel.

[0010]

In order to achieve the above object, a pump control panel according to the present invention has a plurality of pump control units arranged side by side in a horizontal direction, and the pump control panel is provided on a front surface thereof. A control box main body having a box-like opening having a horizontally long opening for exposing a portion; and an opening / closing door for opening and closing the opening of the control panel main body. The opening and closing door includes first and second door bodies pivotally supported by the control panel body via hinge shafts extending vertically at both ends along the longitudinal direction of the opening, and It is characterized in that it is divided into at least one of the first and second door bodies and at least one third door body which is rotatably supported via a hinge shaft extending in a vertical direction.

According to this structure, the opening / closing door for opening and closing the horizontally long opening is divided into a plurality of first to third doors along the longitudinal direction of the opening. The shape and dimensions of the body are reduced. Therefore, when the opening and closing door is opened to open the opening, the door body does not protrude greatly around the control panel body, and a wide space for opening and closing the door is secured around the control panel body. No need.

In addition, since the individual doors are made compact and lightweight, the doors can be easily opened and closed with a small force, and even if the space around the control panel body is narrow, the doors can be opened and closed. It can be completely opened and the opening can be widely opened, so that the workability during maintenance and inspection of the pump control unit is improved.

According to the second aspect, the first and second doors have a closed position in which both ends of the opening are partially closed with the hinge shaft as a fulcrum, and an open position in which both ends of the opening are opened. And the third door body is interposed between the first and second door bodies when the first and second door bodies are in the closed position, and closes the center of the opening. A closed position, and a folding position where at least one of the first and second doors on which the third door is supported is in an open position so as to be folded so as to face at least one of the doors. Can be turned over.

For this reason, the third door is made up of the first and second doors.
Is opened in such a position as to fold over at least one of the door bodies of the first and second door bodies.
Therefore, when the opening / closing door is opened, the space required around the control panel body can be reduced.

According to the third aspect, the third door body has a hook which is detachably hooked on the control panel body when the third door body is turned to the folding position, so that the third door body is temporarily fixed at the folding position. can do. For this reason, even if a hand touches the third door body or the wind pressure acts on the third door body, the third door body does not rotate carelessly.

According to the fourth aspect, the control panel body has a groove-shaped guide portion extending in the longitudinal direction of the opening at the upper edge of the opening facing the opening, and the hook is slidably hooked on the guide portion. Therefore, the third door body is held in a posture straddling between the guide portion and at least one of the first and second door bodies. Therefore, if the hook is slid along the guide portion, the orientation and the rotation posture (opening angle) of the third door body can be freely changed, and the workability at the time of maintenance and inspection of the pump control unit is improved. Can be more enhanced.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

FIGS. 1 and 2 show a pump control panel 1 used for an automatic water supply pump unit, for example. The pump control panel 1 controls, for example, the rotation speed and the number of operating pumps of six pumps (not shown), and is supported by a base (not shown) together with these pumps.

The pump control panel 1 has a control panel main body 2. The control panel main body 2 has a flat box shape, and a control board 3 as shown in FIG. The control board 3 is provided with six pump controllers 4a to 4f corresponding to the six pumps No1 to No6. Each of the pump controllers 4a to 4f includes an inverter 5 for controlling a drive motor of the pump.
The inverters 5 are individually connected to a power supply via an earth leakage breaker 6. The inverter 5 includes various circuit components such as transistors that generate heat during operation. Therefore, the six inverters 5 are
In order to minimize the thermal effect during the operation, the control panel 2 is arranged in a row in the lateral direction.

For this reason, the control panel body 2 has an external appearance that is elongated in the horizontal direction, and its width is larger than its height.

As best shown in FIG. 3, an opening 8 for maintenance is formed in the front surface of the control panel main body 2. The opening 8 is for exposing the pump controllers 4a to 4f, and has a horizontally long opening shape extending along the arrangement direction of the pump controllers 4a to 4f.

As shown in FIGS. 1 and 2, the control panel main body 2 has an opening / closing door 10 for opening and closing the opening 8. The opening and closing door 10 includes first to third door bodies 11a and 11
b, 11c, and these doors 11a, 1
1 b and 11 c are arranged side by side in the longitudinal direction of the opening 8. Each of the first to third doors 11a to 11c has a flat rectangular shape. Width dimension of first door 11a
L1 is the width dimension L of the second and third door bodies 11b and 11c.
It is set larger than 2, L3. Also, the second door 1
The width L2 of 1b is set equal to or slightly larger than the width L3 of the third door 11c.

The first door 11a is supported on the right end of the control panel main body 2 via a pair of hinge fittings 12 when the control panel main body 2 is viewed from the front. As shown in FIG. 4, the hinge fitting 12 includes a first leaf 13 having a cylindrical joint 13 a, a second leaf 14 having a cylindrical joint 14 a, and a joint of the leaves 13, 14. A hinge shaft 15 for connecting the parts 13a and 14a coaxially and rotatably.

The hinge fitting 12 has a first leaf 1 at two locations separated in the height direction of the first door body 11a.
3 is screwed to the right side surface of the control panel body 2 and the second leaf 14 is screwed to the right end of the first door body 11a, so that the first door body 11a and the control panel body 2 are connected to each other. The hinge shaft 12 of the hinge fitting 12
Is erected along the height direction of the first door body 11a.

For this reason, the first door 11a has a closed position at which the right end of the opening 8 is closed with the hinge shaft 15 as a fulcrum, and an open position which is advanced forward of the opening 8 to open the opening 8. Are supported by the control panel main body 2 so as to be rotatable in the front-rear direction.

The first door 11a has a handle 16 at the left end which is the open end. When the first door 11a is turned to the closed position, the handle 16 is moved to the control panel main body 2.
The first door 11a is held in the closed position by a lock mechanism (not shown) that is hooked on the first door 11a.

The first door 11a has No. 1 to No. 6
A control panel 17 for switching the operation modes of the six pumps described above and displaying the operation states of the pumps is incorporated.

The second door body 11b is supported at the left end of the control panel body 2 via the same hinge 12 as described above when the control panel body 2 is viewed from the front. That is,
The hinge fittings 12 screw the first leaf 13 to the left side surface of the control panel body 2 at two places separated in the height direction of the second door body 11b, and
4 is screwed to the left end of the second door 11a,
The hinge member 15 is fixed across the second door body 11b and the control panel body 2, and the hinge shaft 15 of the hinge fitting 12 is erected along the height direction of the second door body 11b.

For this reason, the second door 11b has a closed position at which the left end of the opening 8 is closed with the hinge shaft 15 as a fulcrum, and an open position which is advanced forward of the opening 8 to open the opening 8. Are supported by the control panel main body 2 so as to be rotatable in the front-rear direction.

As shown in FIG. 5, the third door 11c is
A hinge fitting 1 similar to the above is attached to the open end of the second door 11a.
2 is supported. The hinge fitting 12 connects the first leaf 13 to the second door 11 at two places separated in the height direction of the second and third doors 11b and 11c.
b, and the second leaf 14 is screwed to the left inner surface of the third door 11c, so that the second leaf 14 extends across the second door 11b and the third door 11c. The hinge shaft 15 of the hinge fitting 12 is fixed.
The second and third door bodies 11b and 11c are erected along the height direction.

Therefore, the third door 11c faces the closed position, which is located on the same plane as the second door 11b, with the hinge shaft 15 as a fulcrum, and the inner surface of the second door 11b. Is supported by the second door body 11b so as to be rotatable in the front-rear direction over the folded position where it is folded.

Thus, when the first door 11a is turned to the closed position, the second and third doors 11a
When the b and 11c are rotated to the closed position, the third door 11
c is interposed between the first door body 11a and the second door body 11b and faces the central portion of the opening 8, and the first to third door bodies 11a to 11c are arranged in a line on the same plane. The openings 8 are closed side by side.

The third door 11c is connected to the second door 11
It has a handle 18 at the left end adjacent to b. The handle 18 is linked to a lock mechanism (not shown) that is hooked on the control panel body 2 when the second and third doors 11b and 11c are turned to the closed position. Are held at the closed position.

As shown in FIG. 6, the third door 11c is
At the upper end on the open end side, there is a flange portion 20 projecting toward the front surface of the control panel body 2. This flange portion 20
A column-shaped hook 21 projecting downward is formed on the lower surface of.

The control panel main body 2 has a guide portion 22 at the front end facing the upper edge of the opening 8. Guide part 2
2 has a groove shape extending along the longitudinal direction of the opening 8, and the guide portion 22 has a hook 2 of the third door body 11 c.
1 can be slidably fitted.

In the pump control panel 1 having such a structure, to open the opening / closing door 10 at the time of maintenance / inspection of the pump control units 4a to 4f, a finger is put on the handle 16 to lock the first door 11a by the lock mechanism. The lock is released, and the first door 11a is pulled toward the user via the handle 16 so as to move away from the control panel body 2. Thereby, as shown by a two-dot chain line in FIG. 2, the first door 11a is turned from the closed position to the open position.

Next, a finger is put on the handle 18 to unlock the third door 11c by the lock mechanism, and the third door 11c is moved away from the control panel main body 2 through the handle 18 in front of it. To pull. Then, the third door body 11c
Since the second door 11b is connected to the second door 11b via the hinge fitting 12, the second door 11b follows the third door 11c and is pulled forward. As shown by the dashed line, it is rotated from the closed position to the open position.

The third door body 11c is rotatable inward so as to overlap the inner surface of the second door body 11b.
It is opened in a state of being folded so as to overlap with the second door 11b. As a result, the opening 8 of the control panel main body 2 is widely opened over the whole, and the pump controllers 4a to 4f are exposed through the opening 8.

According to such a configuration, the horizontally long opening 8
Is divided into first to third door bodies 11a to 11c along the longitudinal direction of the opening 8, so that the individual doors can be opened even though the opening 8 is horizontally long. The shapes and dimensions of the bodies 11a to 11c are reduced.

In particular, the third door 11c at the center is folded inward so as to overlap the inner surface of the second door 11b, so that the third door 11c alone is smaller than the second door 11b. It does not overhang the outside. For this reason, as is clear from FIG. 2, a space only corresponding to the width dimensions L1, L2 of the first and second door bodies 11a, 11b is provided.
, The door 10 can be opened and closed without difficulty. Therefore, in comparison with the conventional two-parted double-door type opening / closing door, the space required for opening and closing the door 10 is small, and the degree of freedom when installing the pump control panel 1 is increased.

Moreover, the first to third doors 11a to 11a
Since the size of 1c is smaller than the opening shape of the opening 8, the doors 11a to 11c are light and compact, and the doors 11a to 11c can be easily opened and closed with a small force. At the same time, the control panel body 2
Even if the space in front of is small, the opening and closing door 10 can be completely opened and the opening 8 can be widely opened, and the pump control unit 4a
Workability at the time of maintenance and inspection of 4f is improved.

If the hook 21 of the third door 11c is fitted into the guide portion 22 of the control panel main body 2 and the open end of the third door 11c is hooked on the control panel main body 2,
The third door 11c can be temporarily fixed to the control panel main body 2, and the free rotation of the third door 11c about the hinge shaft 15 can be restricted. For this reason, even when the third door 11c is touched or the wind pressure acts on the third door 11c during maintenance / inspection of the pump controllers 4a to 4f, the third door 11c is not affected. It does not rotate easily.

Therefore, the third door 11c is connected to the control panel body 2
It does not collide with the surroundings and the surrounding structures, can prevent damage to the third door 11c, and does not hinder the maintenance and inspection work of the pump controllers 4a to 4f.

In addition, since the guide portion 22 extends in the longitudinal direction of the opening 8, if the hook 21 is slid along the guide portion 22, the third portion temporarily fixed to the control panel main body 2 is formed. The direction and the rotation posture (opening angle) of the door body 11c can be freely adjusted. Therefore, the third door body 11
There is an advantage that c does not hinder the work, and also contributes to the improvement of the workability at the time of maintenance and inspection.

The present invention is not limited to the first embodiment, and FIG. 7 shows a second embodiment of the present invention.

In the second embodiment, the opening / closing door 10 is divided into four parts along the longitudinal direction of the opening 9, and the opening / closing door 10 is provided with first and second door bodies 11a and 11b. In addition, it has a pair of third door bodies 31a and 31b.
These third doors 31a, 31b are rotatably supported on the open ends of the first and second doors 11a, 11b via hinges similar to those in the first embodiment.

In such a configuration, assuming that the width of the control panel body 2 is the same as in the first embodiment, the width of each of the doors 11a, 11b, 31a, 31b is reduced. Each door body 11a, 11b, 31a, 31b can be made more compact. Therefore, when the opening and closing door 10 is opened and closed, the space required in front of the control panel main body 2 can be further reduced.

FIG. 8 shows a third embodiment of the present invention.

The third embodiment is an extension of the second embodiment, and includes one third door 11a.
Is rotatably supported by the open end of the second door body 11b via a hinge fitting, and the other third door body 3
1b is rotatably supported by an open end of the one third door body 31a via a hinge. In this case, the other third door body 31b is connected to the one third door body 3
The third door body 31a can be rotated between a closed position located on the same plane as the first door body 1a and a folded position where the third door body 31a is folded so as to overlap the outer surface.

Therefore, the second door 11b and the third doors 31a and 31b are opened in a state of being folded so as to be alternately overlapped like a bellows.

According to such a configuration, the second door 11
b, a pair of third door bodies 31a and 31b are connected to each other, but when the open / close door 10 is opened, the third door body 31a is opened.
Since a and 31b do not protrude greatly in front of the opening 8, the space required for opening and closing the door 10 can be reduced.

The number of divisions of the opening / closing door is not limited to the above embodiment, but may be divided into five or six in accordance with the number of pump control units arranged in a line.

Further, the plurality of pump control units need not necessarily be arranged in a horizontal line, but may be arranged in a staggered manner along the longitudinal direction of the opening.

[0054]

According to the present invention described in detail above, the opening / closing door for opening / closing the horizontally long opening is divided into a plurality of doors along the longitudinal direction of the opening. Despite this, the shape and size of each door body are reduced, and a space corresponding to at least the width dimension of the first and second door bodies supported by the control panel body is provided in front of the control panel body. If so, the door can be opened and closed without difficulty. For this reason, in comparison with a two-parting double door type opening / closing door, the space required for opening and closing the opening / closing door is small, and the degree of freedom in installing the pump control panel is increased.

Furthermore, since each door is light and compact, these doors can be easily opened and closed with a small force. Therefore, even if the space around the control panel main body is narrow, the opening and closing door can be completely opened and the opening can be widely opened, so that there is an advantage that workability at the time of maintenance and inspection of the pump control unit is improved.

[Brief description of the drawings]

FIG. 1 is a front view of a pump control panel according to a first embodiment of the present invention.

FIG. 2 is a plan view of the pump control panel showing the opening directions of first to third door bodies.

FIG. 3 is a front view of a control panel main body showing an arrangement direction of pump control units and an opening shape of an opening;

FIG. 4A is a side view showing a connection portion between a first door body and a control panel main body. FIG. 4B is a sectional view taken along line AA in FIG.

FIG. 5 is a sectional view showing a connection portion between a second door body and a third door body.

FIG. 6 is a sectional view showing a positional relationship between a hook of a third door body and a guide portion of a control panel main body.

FIG. 7 is a plan view of a pump control panel according to a second embodiment of the present invention.

FIG. 8 is a plan view of a pump control panel according to a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pump control panel 2 ... Control panel main body 4a-4f ... Pump control part 10 ... Opening / closing door 11a-11c, 31a, 31b ... Door (1st thru 3rd door) 15 ... Hinge axis

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masahiro Nakanishi F-term (reference) 3H071 AA01 BB13 CC33 CC35 DD84 5G016 AA04 CC04 in Okazaki Plant, Hashime-cho, Okazaki City, Aichi Prefecture

Claims (4)

[Claims] 1. A box-shaped control panel main body having a plurality of pump control sections arranged side by side in a horizontal direction and having a horizontally long opening for exposing the pump control section on the front surface; An opening / closing door for opening and closing the opening of the opening, wherein the opening / closing door is pivotally supported by the control panel main body via hinge shafts extending vertically at both ends along the longitudinal direction of the opening. At least one of the first and second doors and at least one third door rotatably supported by at least one of the first and second doors via a hinge shaft extending vertically. A pump control panel divided into a door body. 2. The door according to claim 1, wherein the first and second doors are closed at both ends of the opening with the hinge axis as a fulcrum, and at both ends of the opening. The third door body is interposed between the first and second door bodies when the first and second door bodies are in the closed position. When at least one of the first door and the second door supporting the third door is in the open position, and at least one of the doors is closed when the central portion of the opening is closed. A pump control panel, which is rotatable over a folded position where the pump control panel is folded so as to face. 3. The method according to claim 1, wherein
A pump control panel, wherein the third door body has a hook which is detachably hooked to the control panel body when rotated to the folding position. 4. The control panel main body according to claim 3, wherein the control panel main body has a groove-shaped guide portion extending in a longitudinal direction of the opening at an upper edge of the opening, and the hook is attached to the guide portion. A pump control panel characterized by being slidably hooked.