JP2011154623A - Inspection box for fire sensor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a sensor mounting plate from falling into a hoistway by allowing the sensor mounting plate to be reliably inserted into a guide rail of a box body. <P>SOLUTION: Baffle sections 11 and 11 provided with notches 12 at positions allowing the sensor mounting plate 3 to be inserted into guide rails 2b and 2b of a box body 2 is provided in right and left vertical walls of an opening on the insertion side of the sensor mounting plate 3 of the box body 2. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

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.

  Fire detectors are required to be installed inside the hoistway where the car in the elevator moves up and down. In addition, regular 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 fire detector check box for this purpose has been used in the past.

  FIG. 12 shows such a fire detector check box. Reference numeral 100 denotes an inspection box for the fire detector. The fire detector inspection box 100 is embedded in a hoistway wall (not shown) so as to penetrate the inside and outside of the hoistway wall, and a screw threaded hole is formed in an opening on the insertion side of the detector mounting plate described later. (Not shown) provided with connecting piece portions 101a, 101a, 101a, 101a, and metal box body 101 provided with guide rails 101b, 101b on the inner surfaces of the left and right vertical walls, and a fire detector at the tip portion 103, a rear end portion is bent at a right angle to form a stopper portion 102a, and both end portions in the width direction are slidably fitted into the guide rails 101b and 101b of the box body 101 so as to be slidable. And an opening of approximately the same shape and size as the opening of the box body 101, and the connecting pieces 101a, 101a, 101a of the box body 101 of the opening. Connecting piece portions 105b, 105b, 105b, and 105b having screw insertion holes 105a, 105a, 105a, and 105a are provided at positions where they are aligned with 101a, and are connected and fixed to the opening of the box body 101 with screws 105c, 105c, 105c, and 105c. The lid 104 includes a lid mounting frame 105 and a lid body 106 that closes the opening of the lid mounting frame 105.

  In the illustrated conventional example, the lid main body 106 of the lid 104 is pivotally attached to the lid mounting frame 105 via the pivot 107, but there are cases where this is not the case. Reference numeral 108 denotes a connecting piece portion having a screw screw hole 108 a provided in the opening of the lid mounting frame 105, and 109 denotes a screw insertion hole provided in the lid main body 106. Then, the screw 109 is inserted through the screw insertion hole 110 of the lid main body 106 and screwed into the screw screw hole 108a of the connecting piece portion 108 in the lid mounting frame 105 to hold the closed state of the lid main body 106. .

  When the fire detector 103 is inspected, the fire detector inspection box 100 opens the lid body 106 of the lid 104, pulls the fire detector mounting plate 102 forward, and pulls the fire detector 103 from the hoistway. After taking out and checking, it is reset again by the reverse procedure.

  However, in the above-described conventional fire detector inspection box 100, the gap between the end portions on the insertion side of the sensor mounting plate 102 in the guide rails 101b and 101b of the box body 101 is increased in the thickness of the sensor mounting plate 102. Since there is only a corresponding space, it is extremely narrow, and the upper and lower sides of the guide rails 101b and 101b are spaces through which both ends in the width direction of the sensor mounting plate 102 can freely pass. As shown in FIG. 13, it is possible that none of the both ends in the width direction is inserted into the guide rails 101b and 101b, or only one of them is inserted as shown in FIG. In such a case, if the inspector continues to push the sensor mounting plate 102 to the sensor installation position in the hoistway without noticing, the risk of dropping the sensor mounting plate 102 into the hoistway. There is.

  The present invention has been made in view of the above points, and the detector mounting plate can be surely inserted into the guide rail of the box body so that the fire detector mounting plate can be dropped into the hoistway. It is an object of the present invention to provide an inspection box for a fire detector that can be prevented and can be implemented inexpensively with a simple structure.

  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 detector is attached to one end, and the other end is attached. A sensor mounting plate that is bent to form a stopper, and that both end portions in the width direction are slidably inserted into the guide rail, and an opening through which a fire sensor mounted on the sensor mounting plate can be inserted. A fire detector inspection box comprising a lid mounting frame that includes a lid and a lid mounting frame that connects and fixes the opening to the opening of the box body, and a lid body that closes the opening of the lid mounting frame. The fire is characterized in that a baffle plate portion provided with a notch at a position where the sensor mounting plate can be inserted into the guide rail of the box body is provided in the opening on the side where the sensor mounting plate is inserted. For sensor In the search box.

  And in the said structure, it makes the summary that the said baffle plate part was provided in the opening part by the side of the sensor body mounting plate of the said box main body.

  Further, the gist plate portion is provided in the opening portion of the lid mounting frame constituting the lid instead.

  According to the fire detector inspection box according to the aspect of the present invention, on the insertion side of the guide rail of the box body, the baffle plate is provided with a notch at a position where the box body or the lid mounting frame can be inserted into the guide rail. Since the portion is provided, the sensor mounting plate is not inserted into the box body from a portion other than the notch. Therefore, the sensor mounting plate can be surely inserted into the guide rail of the box body. Thus, when the sensor mounting plate is pushed into the box body, the stopper portion formed by bending the rear end portion reliably contacts the baffle plate portion and further progress is prevented, so that the hoistway It is possible to reliably prevent falling into the inside. In addition, the fire detector can be installed at an appropriate angle at an appropriate position in the hoistway. Further, since the baffle plate portion provided with a notch is provided on the box main body or the lid mounting frame, it can be implemented inexpensively.

It is a front view in the state where the lid of the inspection box for fire detectors concerning the 1st mode of the present invention was opened. It is a front view of the state which closed the lid. It is the rear view which abbreviate | omitted and showed the fire sensor of the state which closed the cover. It is the right view which abbreviate | omitted and showed the fire detector of the state which closed the cover. It is the top view which abbreviate | omitted and showed the fire detector of the state which closed the cover. It is the bottom view which abbreviate | omitted and showed the fire sensor of the state which closed the cover. FIG. 3 is a cross-sectional view taken along line AB in FIG. 2. It is the expansion | deployment top view of the component of a box main body which abbreviate | omitted and showed the guide rail. It is explanatory drawing of the same use condition. It is a front view of the state which opened the lid | cover of the inspection box for fire detectors concerning the 2nd aspect of this invention. It is an expansion | deployment top view of the lid attachment frame. It is a front view of the state which opened the lid | cover of the conventional inspection box for fire detectors. It is explanatory drawing of an example of the abnormal insertion state of the fire detector mounting plate. It is explanatory drawing of the other example of the abnormal insertion state of the same fire detector mounting plate.

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

  FIG. 1 thru | or FIG. 9 shows the inspection box for fire detectors which concerns on the 1st aspect of this invention.

  In the figure, 1 is an inspection box for a fire detector. The fire detector check box 1 is the same as the conventional fire detector check box in the basic configuration.

  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 the front end portion and a rear end portion 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.

  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. .

  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, the fire detector inspection box according to the first aspect of the present invention is characterized in that the detector is provided on the left and right vertical walls of the opening on the insertion side of the detector mounting plate 3 of the box body 2. The baffle plate portions 11 and 11 provided with the notches 12 are provided at positions where the mounting plate 3 can be inserted into the guide rails 2 b and 2 b of the box body 2.

  In the present embodiment, the baffle plates 11 and 11 are provided by connecting the connecting pieces 2a, 2a, 2a, and 2a provided in the opening on the insertion side of the sensor mounting plate 3 of the box body 2 to the left and right, respectively. These are integrated by forming a single plate, and the middle portions of the connecting piece portions 2a, 2a positioned above and below are formed as baffle plate portions 11, 11.

  FIG. 8 shows a developed plan view of the components of the box main body 2. The box main body 2 is formed by punching a single metal plate, and has side walls on the left and right sides of the top wall 2A via folding lines S1 and S2. (Vertical walls) 2B and 2C are connected in series, and connecting piece portions 2B 'and 2C' are connected to the side walls of the side walls (vertical walls) 2B and 2C via fold lines S3 and S4. Walls) 2B and 2C, on the insertion side of the sensor mounting plate 3, the connecting piece portions 2D constituting the upper and lower connecting piece portions 2a and 2a and the baffle plate portion 11 at the middle portion thereof via folding lines S5 and S6, respectively. 2E, and a main body 2 'formed by bending each part at right angles along the folding lines S1 to S6, and a bottom wall plate 2 "welded to the bottom of the main body 2'. In the figure, the guide rail is omitted.

  By configuring the box main body 2 in this way, the baffle plates 11 and 11 can be provided simultaneously with the formation of the main body 2 ', and the cost can be reduced.

Next, a fire detector inspection box according to a second aspect of the present invention will be described.
In the fire detector inspection box according to the second aspect of the present invention, the same members as those in the fire detector inspection box according to the first aspect of the present invention are denoted by the same reference numerals and detailed description is given. Is omitted.

  Thus, the inspection box for a fire detector according to the second aspect of the present invention is characterized in that the detector mounting plate 3 is formed on the left and right vertical walls in the opening of the lid mounting frame 6 constituting the lid 5. Is provided with baffle plates 13 and 13 provided with a notch 14 at a position where it can be inserted into the guide rail of the box body 2.

  Moreover, in this embodiment, about providing baffle plate parts 13 and 13, the connection piece part 6b, 6b, 6b, 6b provided in the opening part of the cover attachment frame 6 which comprises the cover 5 is located in each right and left. The objects are integrated by constituting a single plate, and the middle portions of the connecting piece portions 6b and 6b positioned above and below are formed as baffle plate portions 13 and 13, respectively.

  Further, FIG. 11 shows a developed plan view of a lid mounting frame 6 of an example different from that shown in FIG. 10, in which a single metal plate is punched and left and right of a main body 6A having an opening at the center. The side wall portions 6B and 6C are connected to each other through the fold lines S7 and S8, the top wall portion 6D is connected to the upper portion of the main body portion 6A through the fold line S9, and the upper and lower connecting piece portions 6b and 6b are connected to each other. In order to form the baffle plate portion 13 at the intermediate portion, the left and right sides of the opening portion are narrowed by a required width W from the original edge portion.

  By configuring the lid mounting frame 6 in this way, the baffle plate portion 13 can be provided simultaneously with the formation of the main body portion 6A, and the cost can be reduced.

  In addition, in each baffle plate portion of the first and second modes, if the notch is provided only at a position where the sensor mounting plate can be inserted into the guide rail of the box body, further effects can be obtained. Needless to say.

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 Baffle plate portion 14 Notch

Claims (3)

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 fire sensor is attached to one end and the other end is bent to form a stopper, and a sensor mounting plate that is slidably fitted into the guide rail at both ends in the width direction;
A lid mounting frame for connecting and fixing the opening to the opening of the box body, and an opening of the lid mounting frame, which has an opening through which the fire sensor attached to the sensor mounting plate can be inserted. In the fire detector inspection box, which is composed of a lid consisting of a lid body,
A fire detection system comprising a baffle plate portion provided with a notch at a position where the sensor mounting plate can be inserted into a guide rail of a box body in an opening portion on a side where the sensor mounting plate is inserted. Check box for dexterity.   The inspection box for a fire detector according to claim 1, wherein the baffle plate portion is provided in an opening portion of the box body on a side where the sensor mounting plate is inserted. The fire detector inspection box according to claim 1, wherein the baffle plate portion is provided in an opening portion of a lid mounting frame constituting the lid.

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