JP2012216049A - Transmitter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transmitter which does not need to remove a protection cover and a retainer frame in every inspection.SOLUTION: A transmitter includes: a push button switch; a main body to which a pressing hole for the push button switch is opened; a protection cover made of an elastic member to protect the push button switch and provided corresponding to the pressing hole; and a protection cover retainer frame integral with the protection cover and engaged with the main body. Since the transmitter can be operated by actually pressing the push button switch by bending the protection cover in a pressing direction at the time of the periodic inspection owing to the protection cover made of the elastic member, removal of the protection cover and the protection cover retainer frame can be avoided in every inspection in order not to damage the protection cover.

Description

  The present invention relates to a transmitter.

  Disaster prevention equipment includes fire extinguishing equipment and fire alarm equipment, but a fire hydrant device for tunnels as fire extinguishing equipment and a general operation panel as fire alarm equipment are provided with a transmitter (for example, see Patent Document 1). .

  For example, in a fire hydrant device for a tunnel, a conventional transmitter has a push button switch provided in a main body having a push hole for a push button switch, a protective cover made of flexi glass is disposed in front of the press hole, and the front surface of the flexi glass. The presser frame is disposed on the front and the flexure glass is held on the front surface of the press hole by engaging the presser frame with the main body.

  When a fire or an accident occurs in the tunnel, the flexi glass is pressed and damaged, and a push button switch is pressed to operate, thereby notifying a signal from the transmitter to a tunnel disaster prevention panel or the like.

  Transmitters are also required to perform regular inspection work. This inspection work can be done by pressing the pushbutton switch to actually damage it and operating the pushbutton switch. Also, in order not to damage the flexiglass, remove the presser frame from the main body and remove the flexiglass before pressing the pushbutton switch. Is actually pushing. Thereafter, the push button of the push button switch holding the operating position is pressed again to release the lock, and the push button is returned to the non-operating position. Finally, the work of reattaching the flexiglass and the presser frame to the main body is performed.

JP 2011-19743 A

  In the conventional transmitter, the protective cover is damaged by the pressing operation at the time of fire. Also, in order to prevent damage to the flexiglass during regular inspections, it is necessary to remove and reattach the presser frame and flexiglass from the main body. At this time, the work frame and the flexiglass are separate members. Becomes complicated.

  An object of the present invention is to eliminate the need to remove the protective cover and the presser frame at every inspection.

  The transmitter according to the present invention includes a push button switch, a main body having a push hole for the push button switch, a protective cover which is disposed corresponding to the push hole and protects the push button switch, and the protection And a protective cover pressing frame that is integrated with the cover and engages with the main body.

  The transmitter according to the present invention includes a push button switch, a main body having a push hole for the push button switch, a protective cover which is disposed corresponding to the push hole and protects the push button switch, and the protection A protective cover presser frame that is integrated with the cover and engages with the main body. The protective cover made of an elastic member presses and bends in the pressing direction during periodic inspections. Thus, the push button switch can be actually pressed to operate. Then, after that, the push button of the push button switch that holds the operating position is pressed again, the lock is released, and the push button can be returned to the non-operating position. Therefore, in order to prevent the protective cover from being damaged, It is possible to eliminate the need to remove the protective cover presser frame. In addition, since the protective cover and the protective cover presser frame are integrated, the protective cover is clamped between the protective cover presser frame and the main body when the protective cover is pressed, because the protective cover is bent inward and reduced in diameter. This prevents the peripheral edge from coming off and the protective cover from falling off.

The front view of the transmitter which shows Embodiment 1 of this invention. The partially broken side view of the transmitter of FIG. FIG. 2 is a transverse half sectional view of the transmitter of FIG. 1. The front view of the fire hydrant apparatus which shows the example of installation of the transmitter of FIG.

Embodiment 1
Hereinafter, an embodiment of the present invention will be described. In the figure, the transmitter 30 of Embodiment 1 is installed in a fire hydrant device 10 as a disaster prevention facility.

  First, the fire hydrant device 10 will be described. The fire hydrant device 10 is installed, for example, on an inspection road adjacent to a roadway in the tunnel, or embedded in an inner wall of the tunnel.

  The fire hydrant device 10 is provided with a front panel 12 on the front surface of a main body 11 to form a housing, with a central portion as a hose storage portion C, a left portion as a fire extinguisher storage portion L, and a right portion as a piping system storage portion R. In the figure, there are shown a hose 14 as a fire hose having a nozzle 13 at the tip, a hose bucket 15 as a hose accommodating part for housing the hose 14 in an inner volume, an automatic pressure regulating valve 16, a fire hydrant valve 17 and the like. The piping system 18 connected to the water supply source which does not carry out, and the fire extinguisher which is not shown in figure are provided. The front panel 12 is provided with a fire hydrant door 20, a fire extinguisher door 21, and a piping door 22 as door bodies so as to cover the opening, and the fire extinguisher storage portion L has an opening at the opening. The electric equipment mounting plate 23 is provided together with the fire extinguisher door 20. A transmitter 30 is attached to the electrical equipment mounting plate 23 together with the indicator lamp 24 and the response lamp 25. Although not shown in detail, the electric device mounting plate 23 is fixed by being screwed into mounting holes (not shown) at four corners.

  The transmitter 30 includes a main body 40 in which a pressing hole 42 is opened at the approximate center of a disc-shaped peripheral portion 41 and a push button switch housing portion 43 is provided on the back side of the pressing hole 42, and the push button switch housing portion 43. The push button switch 50 is provided.

  A protective cover 60 is disposed in the pressing hole 42, and a protective cover pressing frame 70 is disposed on the front side thereof. The protective cover 60 is a flat flexible elastic member, and is made of, for example, silicon rubber. The protective cover presser frame 70 is formed in a disc shape having an opening at the center, and is integrated with the peripheral portion of the protective cover 60 by, for example, adhesion or welding.

  Further, the protective cover presser frame 70 has engagement pieces 71 extending from the four disc-shaped upper, lower, left and right portions on the back side. The engaging piece 71 is engaged with a corresponding engaging hole 44 formed in a step portion formed between the peripheral portion 41 of the main body 40 and the push button switch housing portion 43, so that the protective cover 60 is The push button switch 50 is protected on the front surface of the push button switch storage portion 43.

  A base 80 through which the pushbutton switch 50 is fixed is attached to the back side of the pushbutton switch housing portion 43, and the pushbutton 51 of the pushbutton switch 50 is exposed in the pushbutton switch housing portion 43. The entire surface of the push button switch 50 in the push button switch housing portion 43 is covered with a rubber cap 83.

  A rubber cover 81 is attached to the back side of the base 80 so as to cover the entire surface of the push button switch 50. A signal line (not shown) is connected to the terminal part 52 of the pushbutton switch 50 and is pulled out from the signal line drawing part 82 of the rubber cover 81 and passed through a terminal box (not shown) of the fire hydrant device 10. Connected to.

  The push button switch 50 is a lock-type switch, and the push button 51 is normally located at the non-operation position shown in the figure, and the switch contact is kept off. Then, when the push button 51 is pressed in the back direction at the time of a fire or periodic inspection, the switch contact is turned on. At this time, the switch contact also maintains the ON state by maintaining the state where the push button 51 remains in the operation position pushed in in the back direction.

  The transmitter 30 configured as described above is screwed and fixed to the electric device mounting plate 23 on the left and right sides of the peripheral portion 41 of the main body 40.

Next, the operation of the transmitter 30 will be described.
At the time of periodic inspection or fire, first, the operator presses the push button 51 by pressing the protective cover 60 through the pressing hole 42 to bend to the back side. Then, the push button 51 slides from the non-actuated position shown in the drawing to the actuated position on the back side (not shown), and the switch contact of the push button switch 50 is turned on. An ON signal is output to a signal line (not shown) connected to 52. This ON signal is notified to a tunnel monitoring panel (not shown) via a terminal box (not shown) of the fire hydrant device 10. At this time, since the protective cover 60 and the protective cover presser frame 70 are integrated, when the push button 51 is pressed, the protective cover 60 is bent inward to reduce the diameter, whereby the protective cover presser frame 70 and the main body 40 are connected. The peripheral edge part sandwiched between them is removed, and the protective cover 60 does not fall off.

  Thereafter, the push button 51 of the push button switch 50 holding the operating position is pressed again to release the lock. Then, the push button 51 returns from the operating position to the non-operating position, and the switch contact of the push button switch 50 is turned off, so that the response lamp 25 is turned off and an ON signal to a signal line (not shown) connected to the terminal block 52 is turned on. Output is stopped.

  When the protective cover 60 is removed during replacement or the like, a screwdriver is hooked on the hooking hole 72 of the protective cover presser frame 70 and pulled toward the front, and the engagement hole 44 of the main body 40 and the protective cover presser frame 70 are removed. The protective cover 60 and the protective cover presser frame 70 are removed from the main body 40 by releasing the engagement with the engaging piece 71. At this time, since the protective cover 60 and the protective cover presser frame 70 are integrated, the removal work can be easily performed.

  As for the operation of the fire hydrant device 10, when a fire occurs, the operator opens the fire hydrant door 20, removes the nozzle 13 from the nozzle holder (not shown), and operates the opening / closing lever (not shown) to open the fire hydrant valve 17. The fire extinguishing water supplied from the water supply source is caused to flow into the hose 14 via the automatic pressure regulating valve 16, and in this state, the operator approaches the fire site while grasping the removed nozzle 13. Fire extinguishing water can be discharged for fire fighting activities.

  As described above, the transmitter 30 of the present invention is arranged corresponding to the push button switch 50, the main body 40 having the push hole 42 for the push button switch 50 opened, and the push hole 42. A protective cover 60 made of an elastic member that protects 50 and a protective cover presser frame 70 that is integrated with the protective cover 60 and engages with the main body 40. The protective cover 60 is made of an elastic member. Thus, during the periodic inspection, the protective cover 60 can be pressed and bent in the pressing direction, and the push button switch 50 can be actually pressed to operate. After that, the push button 51 of the push button switch 50 that holds the operating position is pressed again to release the lock, and the push button 51 can be returned to the non-operating position. In addition, the protective cover 60 and the protective cover presser frame 70 can be eliminated. In addition, since the protective cover 60 and the protective cover presser frame 70 are integrated, when the protective cover 60 is pressed, the protective cover 60 is bent inward to reduce the diameter, whereby the protective cover presser frame 70 and the main body 40 are connected. The peripheral edge part sandwiched between the two parts is removed, and the protective cover 60 does not fall off.

DESCRIPTION OF SYMBOLS 10 Fire hydrant apparatus, 11 Main body, 12 Front panel, 13 Nozzle, 14 Hose, 15 Hose bucket, 16 Automatic pressure regulating valve, 17 Fire hydrant valve, 18 Piping system, 20 Fire hydrant door, 21 Fire hydrant door, 22 Piping door, 23 Electrical equipment Mounting plate, 24 indicator lamp, 25 response lamp, 30 transmitter, 40 body, 41 circumference, 42 press hole, 43 push button switch housing, 44 engagement hole, 50 push button switch, 51 push button, 52 terminal, 60 protection Cover, 70 Protective cover presser frame, 71 Engagement piece, 72 Hook hole, 80 Base, 81 Rubber cover, 82 Signal line lead-out part, 83 Rubber cap, C hose storage part, L fire extinguisher storage part, R Piping system storage part .

Claims (1)

A push button switch;
A main body having a pressing hole for the push button switch;
A protective cover made of an elastic member arranged corresponding to the pressing hole and protecting the push button switch;
A protective cover presser frame integrated with the protective cover and engaged with the main body;
A transmitter characterized by comprising.