JP5651409B2 - Fire detector check box - Google Patents

Description

  The present invention relates to a fire detector inspection box for taking out and inspecting a fire detector installed inside a hoistway or the like where a car in an elevator moves up and down.

  A fire detector is required to be installed inside the hoistway where the car in the elevator moves up and down, and a periodic inspection of the fire detector is also required.

  And when inspecting the above-mentioned fire detector, if the fire detector can be taken out of the hoistway without being fixed in the hoistway, the inspection work can be carried out safely and quickly. Since it can be completed, a conventional fire detector check box has been used for this purpose (for example, Patent Document 1).

  Such an inspection box for a fire detector is embedded in a hoistway wall so as to penetrate the inside and outside of the hoistway wall, and a cylindrical box body provided with a guide rail into which a postscript detector mounting plate is inserted on the inner surface of the left and right vertical walls; A fire sensor is attached to one end, the other end is bent at a right angle to form a stopper, and both ends in the width direction are slidably fitted into the guide rail of the box body. And a lid mounting frame installed on the side of the opening of the box body into which the sensor mounting plate is inserted, and the lid, and an opening through which the fire sensor mounted on the sensor mounting plate can be inserted It is comprised with the lid | cover which consists of a lid | cover main body which plugs up the opening part of an attachment frame.

JP2007-22769

  When checking the fire detector, open the lid body of the lid, pull the fire detector mounting plate forward, take out the fire detector from the hoistway, and again after the inspection is completed. It is reset by the reverse procedure.

  By the way, in the above-mentioned fire detector inspection box, when opening the lid main body in the lid, it has become mandatory to have a structure that always stops the elevator.

  In order to fulfill such an obligation, the structure for stopping the elevator is to be performed by using an appropriate switch. Since the inspection box for the sensor is too larger than the predetermined size, it may be necessary to attach the lid mounting frame and the box body apart from each other due to construction. In this case, the distance between the lid mounting frame and the box body depends on the thickness of the hoistway wall.

  In this case, if the switch is mounted on the box body side, the elevator can be stopped normally by the switch if the distance between the lid mounting frame and the box body is an appropriate distance within the activation range of the switch. This is not possible if the distance between them is too wide. This means that the elevator stop mechanism by the switch depends on the thickness of the hoistway wall.

The present invention has been made in view of the above points, and by attaching the elevator stop switch to the lid mounting frame on the lid, the lid mounting frame on the lid and the box body are separated from each other due to construction. The present invention also aims to provide an inspection box for a fire detector that can stop an elevator by a switch without being influenced by the thickness of the hoistway wall.

Thus, the gist of the present invention is that a cylindrical box body provided with a guide rail into which a sensor mounting plate, which will be described later, is inserted on the inner surfaces of the left and right side walls, a fire sensor, and both ends in the width direction are A sensor mounting plate that is slidably fitted into the guide rail, an opening through which the fire sensor mounted on the sensor mounting plate can be inserted, and the sensor mounting plate of the box body is inserted. A lid mounting frame that is connected and fixed to the opening on the side to be connected and a lid body that closes the opening of the lid mounting frame, and the connection fixing of the lid mounting frame to the box body is A screw screw hole is provided in the opening, while a screw insertion hole is provided in the opening of the lid mounting frame, and a screw inserted from the screw insertion hole of the lid mounting frame is screwed into the screw screw hole of the box body. To do by Was a fire detector dexterity inspection box, certain switches elevator stops fire detector dexterity check box, characterized in that attached to the lid mounting frame.

  In the above configuration, a support piece portion is provided on the lid mounting frame, and an elevator stop switch is fixed to the support piece portion by positioning the operating element by opening and closing the lid body. Good.

  In the above configuration, the support piece may be formed by projecting a part of the lid mounting frame to the opening, and in that case, the front end side of the projecting portion is bent at a right angle. May be.

  In the above configuration, the elevator stop switch may be a limit switch.

The present invention is configured as described above, and the elevator stop switch is attached to the lid mounting frame on the lid. Therefore, even when the lid mounting frame on the lid and the box body are separated from each other due to construction. The elevator can be stopped by the switch without being influenced by the thickness of the hoistway wall.

  Further, when the elevator stop switch is attached to the lid mounting frame, the elevator stop switch is fixed to a support piece provided on the lid installation frame, and the support piece is attached to a part of the lid installation frame. If the tip of the protruding portion is bent at a right angle, the support piece can be formed at the same time when the lid mounting frame is punched. No special molding work is required, and the burden is reduced in terms of labor and cost.

  In addition, when a limit switch is used as an elevator stop switch, the configuration of the switch can be simplified and implementation at a low cost can be realized.

It is a front view of the state where the lid of the inspection box for fire detectors concerning the embodiment of the present invention was opened. It is a front view of the state which closed the lid. FIG. 3 is a cross-sectional view taken along line A-B in which the fire detector is omitted in FIG. 2. It is a top view of the state at the time of the punching molding of the lid attachment frame. It is a front view of a lid attachment frame. It is a right view of a lid attachment frame. It is a rear view of a lid attachment frame. FIG. 8 is a cross-sectional view taken along line CD in FIG. It is a side view of the state which closed the lid in the construction state when a hoistway wall is thin. It is a side view of the state which opened the cover. It is a side view in the state where the lid was opened and a sensor mounting plate was partially pulled out. It is a side view of the state which closed the lid in the construction state when a hoistway wall is thick. It is a side view of the state which opened the cover.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  In the figure, 1 is an inspection box for a fire detector. The inspection box 1 for a fire detector includes a cylindrical box body described later, a sensor mounting plate, a lid made up of a lid mounting frame and a lid body.

  That is, a connecting piece portion 2a, 2a, 2a, 2a having a screw threaded hole 2a 'is provided in an opening on the insertion side of the sensor mounting plate described later, and guide rails 2b, 2b are provided on the inner surfaces of the left and right vertical walls. A metal box main body 2, a fire detector 4 attached to one end and the other end bent at a right angle to form a stopper portion 3a, and both end portions in the width direction are guide rails 2b of the box main body 2, A sensor mounting plate 3 slidably fitted in 2b, and an opening having substantially the same shape and the same size as the opening of the box body 2, and the connecting piece 2a of the box body 2 of the opening 2a, 2a, 2a are provided with connecting piece portions 6b, 6b, 6b, 6b having screw insertion holes 6a, 6a, 6a, 6a, and the box body 2 opening with screws 6c, 6c, 6c, 6c. Lid mounting to connect and fix to Is constructed with a 6 and a lid 5 and a lid body 7 for closing the opening of the lid mounting frame 6. The lid mounting frame 6 is provided with a rubber packing 15 for sealing a gap between the lid mounting frame 6 and the lid body 7. Such a configuration is the same as the conventional one.

  In this embodiment, the lid main body 7 in the lid 5 is pivotally attached to the lid mounting frame 6 via the pivot 8, but this is not necessarily required. That is, the lid body 7 may be removable from the lid mounting frame 6. Further, 9 is a connecting piece portion having a screw threaded hole 9 a provided in the opening of the lid mounting frame 6, and 10 is a screw insertion hole provided in the lid main body 7. Then, the screw 10a is inserted through the screw insertion hole 10 of the lid main body 7, and is screwed into the screw screwing hole 9a of the connecting piece portion 9 in the lid mounting frame 6, thereby holding the closed state of the lid main body 7. .

  In this embodiment, the sensor mounting plate 3 can be inserted into the guide rails 2 b and 2 b of the box body 2 in the left and right vertical walls in the opening on the insertion side of the sensor mounting plate 3 of the box body 2. Although the baffle plate portions 11 and 11 provided with the notches 12 at the positions are provided, this is not necessarily required.

  When the fire detector inspection box 1 is inspected, the lid body 7 of the lid 5 is opened, the fire detector mounting plate 3 is pulled forward, and the fire detector 4 is removed from the hoistway. After taking out and checking, it is reset again by the reverse procedure.

Thus, in the present invention, in the fire detector inspection box 1 configured as described above, an elevator stop switch (a limit switch in the present embodiment) 13 is attached to the lid mounting frame 6 of the lid 5. It is what.

Further, in the present embodiment, the limit switch 13 is provided with a support piece portion 14 on the lid mounting frame 6, and the operating piece 13 a is positioned on the support piece portion 14 so as to operate by opening and closing the lid body 7. that have fixed.

  In addition, in the present embodiment, the support piece portion 14 projects a part of the lid mounting frame 6 to the opening thereof, and bends the distal end side of the projecting portion to the box body 2 side at a right angle. Formed.

  FIG. 4 shows a developed plan view of the lid mounting frame 6 according to the present embodiment, in which a single metal plate is punched out, and fold lines S1 and S2 are formed on the left and right sides of the main body 6A having an opening at the center. The side wall portions 6B and 6C are continuously provided via the top, the top wall portion 6D is continuously provided on the upper portion of the main body portion 6A via the fold line S3, and the screw insertion holes 6a, 6a, 6a, The connecting piece portions 6b, 6b, 6b and 6b having 6a are provided, the connecting piece portion 9 having screw screw holes 9a is provided at the upper center of the opening portion, and the support piece portion 14 is provided at the lower center of the opening portion. Provided.

  In addition, when the hoistway wall W is thin, the fire detector inspection box 1 according to the present embodiment moves up and down in a state where the box body 2 and the lid 5 are connected and integrated as shown in FIGS. When the hoistway wall W is thick, as shown in FIGS. 12 and 13, the box body 2 and the lid 5 are separated by using a screw 6c having a long shaft. To be buried.

  Thus, in any of the cases shown in FIGS. 9 to 11 and FIGS. 12 and 13, the operation of the elevator is stopped by the limit switch 13 when the lid body 7 in the lid 5 is closed. When the lid body 7 is opened, a signal for stopping the operation of the elevator by the limit switch 13 is ON (the signal for continuing the operation is OFF). It will be.

In the present invention, as described above, when the limit switch 13 is attached to the lid mounting frame 6 in the lid 5, the lid mounting frame 6 and the box body 2 in the lid 5 are separated from each other due to construction. Also, the elevator can be stopped by the switch without being influenced by the thickness of the hoistway wall W.

DESCRIPTION OF SYMBOLS 1 Fire detector inspection box 2 Box body 2a, 2a, 2a, 2a Connection piece part 2a 'Screw screw hole 2b, 2b Guide rail 3 Sensor attachment plate 3a Stopper part 4 Fire detector 5 Lid 6 Lid mounting frame 7 Lid Body 9 Connecting piece portion 9a Screw screw hole 10 Screw insertion hole 11, 11 Baffle plate portion 12 Notch 13, 13 Limit switch 14 Support piece portion

Claims (5)

A cylindrical box body provided with guide rails into which the sensor mounting plates described later are inserted on the inner surfaces of the left and right side walls;
A sensor mounting plate that is fitted with a fire sensor and slidably fits both ends in the width direction into the guide rail;
A lid mounting frame having an opening through which a fire sensor attached to the sensor mounting plate can be inserted, and connected and fixed to the opening on the side of the box body where the sensor mounting plate is inserted, and the lid mounting frame The lid is composed of a lid body that closes the opening of the box body, and the lid fixing frame is connected to and fixed to the box body by providing screw screw holes in the opening of the box body, A fire detector inspection box provided with a screw insertion hole in a portion, and a screw inserted through the screw insertion hole of the box main body through a screw inserted from the screw insertion hole of the lid mounting frame ,
An inspection box for a fire detector, wherein an elevator stop switch is attached to the lid mounting frame .

  The fire detector according to claim 1, wherein a support piece is provided on the lid mounting frame, and an elevator stop switch is fixed to the support piece by positioning an operating element by opening and closing the lid body. Inspection box.   3. The inspection box for a fire detector according to claim 2, wherein the support piece is a support piece formed by projecting a part of the lid mounting frame over the opening.   The inspection box for a fire detector according to claim 3, wherein the tip end side of the portion protruding from the opening of the support piece is bent at a right angle. The fire detector check box according to claim 1, 2, 3, or 4, wherein the elevator stop switch is a limit switch.

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