JP2707489B2 - Immersion control panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation panel which is installed in an underground hole or a cave to control facilities and equipment such as lighting and drainage. The present invention relates to an operation panel that can be operated without entering.

[0002]

2. Description of the Related Art Conventionally, a waterproof type operation panel installed underground of a power underground line for controlling facilities and devices such as lighting and drainage is often used.

[0003]

However, since these operation panels are waterproof, if an underground hole or a cave is submerged, water enters the operation panel and becomes defective, so that the operation panels have to be replaced.

Accordingly, the present invention is to provide an operation panel which can be operated and used without water entering the panel even if it is submerged to about 10 m to 20 m underwater in an underground hole, a cave, or the like, and solves the above problems. It is.

[0005]

According to a first aspect of the present invention, an operation board is provided in a box body having an opening on one side, facing the opening, and the operation board is provided on the operation board. An operation switch having a central axis substantially perpendicular to the axis is supported, a packing is provided on the periphery of this opening, and a transparent lid is provided to press the packing with the outer periphery to close the opening. A plurality of fastening fixtures that are engaged with a plurality of hooks provided on the outer periphery of the body are provided on the side plate of the box main body, and an appropriate number of insertion holes are provided on the bottom plate or the side plate of the box main body. An insertion tightening support for pressing the outer periphery of a cable or an electric wire or the like penetrating the insertion hole is provided so that the outer periphery thereof is in close contact with the inner periphery of the insertion hole, and a hole is provided in a cover at a position corresponding to the operation switch on the operation board. A substantially cylindrical bearing is provided in this hole via a packing, Fitted the operating shaft into the through hole of the bearing is penetrated, and an engagement portion provided at one end of the operation shaft enters the box body in knob of the operation switch Hikanmuri, the configuration locked.

According to a second aspect of the present invention, in a box body having an opening on one side surface, a transparent operation board facing the opening is provided, and the operation board is provided substantially with respect to the operation board. An operation switch having a central axis at a right angle is supported, a packing is provided on the periphery of the opening, and a transparent lid is provided to press the packing with an outer peripheral edge to close the opening. A plurality of fastening fixtures to be engaged with a plurality of hooks provided in the box body are provided on the side plate of the box body, an appropriate number of insertion holes are provided in the bottom plate or the side plate of the box body, and each insertion hole is provided in each of the insertion holes. The insertion tightening support for pressing the outer periphery of a cable or an electric wire or the like penetrating therethrough is provided such that the outer periphery thereof is in close contact with the inner periphery of each insertion hole.

A hole is provided in the cover at a position corresponding to the operation switch on the operation board, and a substantially cylindrical bearing is provided in the hole, and the bearing is a flange closely attached to the outer surface and the inner surface of the cover. An annular packing is interposed between the lower surface of the flange portion abutting at least on the outer surface of the lid and the outer surface of the lid, and a plurality of annular grooves provided on the inner periphery of the through hole of the bearing. The operating shaft is rotatably fitted and penetrated into the through hole, and the locking portion provided at one end of the operating shaft in the box body is covered with the knob of the operation switch, and is locked. The configuration was as follows.

[0008]

According to the first aspect of the present invention, the operation panel covers the opening of the box body with a lid and presses the packing provided along the opening with the lid. A plurality of fastening fixtures provided on the box main body are engaged with the plurality of hooks provided, and the lid is fixed to the box main body. A bearing is provided in a hole provided in the lid via a packing, and an operation shaft is rotatably fitted and penetrated into a through hole of the bearing. In addition, cables and wires to be introduced and led to the operation panel are inserted through the insertion tightening supports provided on the bottom plate or the side plate of the box main body, and the outer peripheries of these cables, wires, and the like are inserted into the inner circumference of each insertion tightening support. It is in pressure contact, and the outer circumference of each insertion tightening support is provided in close contact with the inner circumference of the insertion hole. Therefore, water is prevented from entering this operation panel.

According to the second aspect of the present invention, the operation panel covers the opening of the box body with a lid and presses a packing provided along the opening with the lid. The lid is fixed to the box body by locking a plurality of fastening fixtures provided on the box body to a plurality of hooks provided on the box body. Further, the hole provided in the lid is provided with a bearing having a flange portion that is in close contact with the outer surface and the inner surface of the hole, at least an annular packing is interposed between the outer surface and the flange portion of the lid,
A plurality of O-rings are provided on the inner periphery of the through hole of the bearing, and each O-ring is pressed against the outer periphery of the operation shaft. In addition, cables and wires to be introduced and led to the operation panel are inserted through the insertion tightening supports provided on the bottom plate or the side plate of the box main body, and the outer peripheries of these cables, wires, and the like are inserted into the inner circumference of each insertion tightening support. It is in pressure contact, and the outer circumference of each insertion tightening support is provided in close contact with the inner circumference of the insertion hole. Therefore, water is prevented from entering this operation panel.

According to the first and second aspects of the present invention, in order to operate the operation switch of the operation panel, an operation shaft pivotally supported by a bearing provided on the lid is turned from the outside of the lid. As a result, the operation shaft rotates while being supported by the bearing, and the operation switch locked by the locking portion at one end rotates together with the operation shaft. At this time, the rotation of the operation switch can be visually recognized from the outside of the lid because the lid is transparent. Further, when the fastening fixtures fixing the lid are removed, the lid is released and the opening of the box body is opened. At this time, the locking portion at the lower end of the operation shaft is easily released because it is simply locked by the operation switch.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. A box body 1 made of stainless steel and having an opening 1a on an upper surface is provided, and an operating device and a circuit for a lighting circuit and a drainage pump are provided in the box body 1, and the opening above these devices and circuits is provided. , An operation board 2 made of transparent polycarbonate is provided. The operation board 2 has angle members 3 provided on both inner side surfaces of the box body 1 on both sides thereof.
And is narrower than the front and rear depths in the box body 1. The operation board 2 has an illumination power indicator 4,
A power supply indicator light 5, a pump stop light 6, a pump operation light 7, and an ammeter 8 are provided. Further, an operation switch 9 having a central axis substantially perpendicular to the operation board 2 and for selection switching between manual, stop, automatic and the like is provided.

A groove 10 is provided on the upper surface of the peripheral frame 1b of the four sides of the opening 1a of the box body 1 so as to surround the opening 1a, and a lower portion of the packing 11 is fitted into the groove 10. A number of fastening fixtures 12 are attached to the upper end of the side plate of the box body 1 at intervals. The opening 1a of the box body 1 is closed by a lid 13, and the tips of the fastening fixtures 12 can be freely locked by hooks 14 provided on the side surface of the lid 13 at intervals. ing. When the tips of the fastening fixtures 12 are locked to the hooks 14, the packing 11 is pressed against the lower surface of the lid 13. The lid 13 is made of transparent polycarbonate and is surrounded by a frame 13a. Therefore, each hook 14 is provided on the side surface of the frame 13a.

An appropriate number of insertion holes 1 are formed in the side plate of the box body 1.
5 are provided, and an insertion tightening support 16 is provided in each of the insertion holes 15. Each of these insertion tightening support members 16 is brought into close contact with the inner periphery of each insertion hole 15,
The outer periphery of a cable or an electric wire penetrating through the insertion fastening support 16 can be tightened and pressed freely. The lid 1 at a position corresponding to the operation switch 9 on the operation board 2
A hole 17 is provided in 3, and a substantially cylindrical bearing 18 is provided in the hole 17. As shown in FIG. 5, an operation shaft 19 is rotatably fitted and penetrated into the bearing 18, and a locking portion 20 provided at one end of the operation shaft 19 in the box body 1 is held by a knob of the operation switch 9. It is locked to.

As shown in FIG. 6, a cylindrical body 18b having a flange portion 18a at one end is fitted into a hole 17 of the operation board 2, and an outer peripheral screw at the upper end of the cylindrical body 18b protrudes from the upper surface of the operation board 2 as shown in FIG. The ring-shaped nut 22 is screwed from above onto the annular packing 21 and tightened, and these flange portions 18 are inserted into the holes 17 of the operation board 2.
a, the cylindrical body 18b and the ring-shaped nut 22 are brought into close contact with each other. Annular grooves 18d are respectively provided above and below the inner periphery of the through hole 18c of the cylindrical body 18, and the O-rings 23 are fitted into the respective annular grooves 18d.

The operating shaft 19 is fitted into and penetrated into the through hole 18c with the outer periphery pressed by each of these O-rings 23. The locking portion 20 provided at the lower end of the operation shaft 19 has a concave portion 20a on its bottom surface,
The knob of the operation switch 9 is fitted in the recess 20a. Further, a stop ring 24 is provided on an outer peripheral portion of the operation shaft 19 protruding from the bearing 18 so that the operation shaft 19 does not come off. Further, a knob 25 that rotates integrally with the operation shaft 19 is locked to an upper end portion of the operation shaft 19. As shown in FIGS. 4 and 5, a reinforcing plate 26 is provided between the front and rear side plates at the center of the opening 1a on the operation board 2 in the box body 1. The reinforcing plate 26 is provided with protrusions 26a at both ends thereof, and each of the protrusions 26a is supported by being fitted into a groove of a U-shaped support 27 having a cross section fixed to the inside of the box body 1. And this reinforcing plate 26 is a cover 1
3 to support the central part.

As shown in FIG. 8, each of the fastening fixtures 12 is a key-shaped one end of which is pivotally supported by a handle portion 12b whose one end is rotatably supported by a base 12a fixed to a side plate of the box body 1. The handle portion 12c is extended by lifting the handle portion 12b to extend the key-shaped lock portion 12c, and locking the key-shaped lock portion 12c to the hook 14 to be locked.
When b is lowered, the key-shaped locking piece 12c is pulled, and when the handle portion 12b is placed on the base 12a, the key-shaped locking piece 12b is fixed as it is.

As shown in FIG. 7, the insertion tightening support 16 has a small diameter portion provided through a stepped portion at one end of a cylindrical main body 16a inserted into an insertion hole 15 formed in a side plate of the box main body 1 from the outside. A nut 28 is screwed into a threaded portion on the outer periphery of the small-diameter portion protruding inside the side plate, and an annular packing 29 is interposed between the step portion and the side plate. A cylindrical packing 3 having washers 30 applied to both ends.
1 is inserted into the through hole 16b of the cylindrical main body 16a, and further, the inner circumference of the cylindrical packing 31 is swollen by turning the tightening gland 32 having one end screwed into the through hole 16b. The outer periphery of the cable or electric wire or the like inserted into the through hole 16b is
1 is to press. Further, a plurality of fixing brackets 33 are provided at appropriate intervals below the side plate of the box body 1.

In this embodiment, the operation panel covers an opening 1a of the box body 1 with a lid 13, and this opening 1a
In a state where the packing 11 provided along the cover 13 is pressed by the lid 13, the box body 1 is attached to the plurality of hooks 14 provided on the lid 13.
The plurality of fastening fixtures 12 provided on the
Is fixed to the box body 1. Moreover, since the lower portion of the packing 11 is placed in the groove 10 as described above, the packing 11 does not escape even when the cover 13 is pressed. Therefore, the more the external pressure is applied, the more the packing effect increases. Therefore, the lid 13 and the opening 1a of the box body 1 are securely sealed. The cables and wires introduced and led to the operation panel are inserted through the insertion tightening supports 16 provided on the side plate of the box main body 1, and the outer circumference of these cables and wires and the like is inserted into the inner circumference of each insertion tightening support 16. The outer circumference of each insertion tightening support 16 is provided in close contact with the inner circumference of the insertion hole 15. Therefore, derivation of the cable or electric wire,
Water does not enter through the insertion hole for introduction.

The hole 17 provided in the cover 13 has the hole 1
7, a bearing 18 having a flange portion 18a and a ring-shaped nut 22 that are in intimate contact with the outer surface and the inner surface, and an annular packing 21 interposed at least between the outer surface of the lid 13 and the ring-shaped nut 22; A plurality of O-rings 23 are provided on the inner periphery of the through hole 18 c of the bearing 18, and each O-ring 23 is pressed against the outer periphery of the operation shaft 19. Therefore, water does not enter inside even from the 19 operation shafts provided on the lid.

In order to operate the operation switch 9 of the operation panel, an operation shaft 19 supported on a bearing 18 provided on the lid 13 is turned from the outside of the lid 13. As a result, the operation shaft 19 rotates while being supported by the bearing 18, and the operation switch 9 locked by the locking portion 20 at one end rotates together with the operation shaft 19. At this time, since the two O-rings 23 are provided vertically in the through hole 18c, the operation shaft 19 does not move. The rotation of the operation switch 9 can be viewed from the outside of the lid 13 because the lid 13 is transparent.

In the above embodiment, the operation panel for controlling the lighting and drainage devices has been described. However, the operation panel of the present invention is not limited to these, and performs operations for appropriate purposes. Further, in the above embodiment, an annular groove 18d is provided on the inner periphery of the through hole 18c of the bearing 18 provided in the lid 13 so that the O-ring 23
The O-ring 23 is pressed against the outer periphery of the operation shaft 19 in which the O-ring 23 is inserted into the through hole 18c. However, the present invention is not limited to this configuration, and the operation shaft is inserted into the bearing by an appropriate method and inserted. May be. Further, the fastening fixture 12 and the insertion fastening support 16 are not limited to the structure of the above embodiment.

[0022]

According to the first aspect of the present invention, the box main body and the lid are configured to press a packing provided on the outer periphery of the opening and fix the box main body and the lid with a fastening fixture. For the insertion holes of cables and wires to be inserted, the outer periphery is in close contact with the inner periphery of the insertion holes, and since the insertion clamp supports that press the inner periphery to the outer periphery of the inserted cables or wires are provided, No water intrusion. The operation switch on the operation board in the box body is rotated by the rotation of the operation shaft provided in the upper lid, and the operation shaft fits into a bearing fixed through a packing in a hole provided in the lid. Therefore, there is no water intrusion from the location.
Therefore, the operation panel is of an immersion-proof type that does not allow water to enter the box body even if it is immersed in water. Also, when the lid is opened from the box body, the locking portion of the operation shaft simply covers the operation switch on the operation board and locks the operation switch. Disconnects from the operation switch.

According to a second aspect of the present invention, in addition to the effects of the first aspect of the present invention, in addition to the effects of the first aspect, a bearing which supports the operation shaft is fixed to a hole of a lid via a packing, and a through hole of the bearing is provided. Since the O-ring is provided on the outer periphery of the operation shaft so as to be pressed against the outer periphery of the operation shaft, water does not enter from the portion even when the operation shaft is rotated, so that a more reliable immersion prevention structure is obtained.
Furthermore, by providing a plurality of O-rings in the through holes of the bearing, the operation shaft can be smoothly rotated without being shaken.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of the present invention with a lid removed.

FIG. 2 is a front view of the lid according to the embodiment of the present invention in which a part of the lid is separated and a part is cut away.

FIG. 3 is a partial cross-sectional side view of the embodiment of the present invention.

FIG. 4 is a plan view of a lid according to the embodiment of the present invention.

FIG. 5 is a sectional view of a main part of the present invention.

FIG. 6 is an exploded view of a bearing and an operation shaft according to the embodiment of the present invention.

FIG. 7 is a cross-sectional view of the insertion fastening support according to the embodiment of the present invention.

FIG. 8 is an exploded cross-sectional view showing a fixing structure of the box body and the lid according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Box main body 2 Operation board 3 Angle material 9 Operation switch 10 Groove 11 Packing 12 Tightening fixture 13 Lid 14 Hook 15 Insertion hole 16 Insertion fastening support 17 Hole 18 Bearing 19 Operation shaft 20 Locking part 21 Ring packing 22 Ring shape Nut 23 O-ring 25 Knob 31 Tubular packing

Claims (2)

(57) [Claims] An operation board is provided in a box body having an opening on one side, facing the opening, and an operation switch having a central axis substantially perpendicular to the operation board is provided on the operation board. The opening is provided with a packing on the periphery of the opening, and the packing is pressed by the outer periphery to provide a transparent lid for closing the opening, and is engaged with a plurality of hooks provided on the outer periphery of the lid. A plurality of tightening fixtures to be provided on the side plate of the box body,
An appropriate number of insertion holes are provided in the bottom plate or side plate of the box body, and each of the insertion holes is provided with an insertion tightening support for pressing the outer periphery of a cable or an electric wire or the like passing through each of the insertion holes. It is provided in close contact with the inner periphery, a hole is provided in the lid at a position corresponding to the operation switch on the operation board, and a substantially cylindrical bearing is provided in this hole via a packing, and an operation is performed in the through hole of the bearing. An immersion-type operation, wherein the shaft is rotatably fitted and penetrated, and a locking portion provided at one end of the operation shaft that has entered the box body is covered and locked with the knob of the operation switch. Board. 2. A box body having an opening on one side, a transparent operation board facing the opening, the operation board having a central axis substantially perpendicular to the operation board. A switch is pivotally supported, a packing is provided on the periphery of the opening, a transparent lid is provided which presses the packing with an outer peripheral edge to close the opening, and a plurality of hooks provided on the outer periphery of the lid are provided. A plurality of fastening fixtures for locking are provided on the side plate of the box main body, and an appropriate number of through holes are provided in the bottom plate or the side plate of the box main body. Each of the through holes has a cable or an electric wire penetrating through each of the through holes. An insertion tightening support that presses the outer periphery of the operation board is provided in close contact with the inner periphery of each insertion hole, and a hole is provided in the lid at a position corresponding to the operation switch on the operation board. -Shaped bearing, which is in close contact with the outer and inner surfaces of the lid An annular packing is interposed between at least the flange portion abutting the outer surface of the lid and the outer surface of the lid, and a plurality of annular grooves provided on the inner periphery of the through hole of the bearing. The operating shaft is rotatably fitted and penetrated into the through hole, and the locking portion provided at one end of the operating shaft in the box body is covered with the knob of the operation switch, and is locked. An immersion-type operation panel characterized by the following.