JP6661153B1 - Installation equipment for smoke detectors for fire and smoke control equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting device for a smoke sensor for fire prevention and smoke prevention equipment, which prevents malfunction of the smoke sensor for fire prevention and smoke prevention equipment from smoke detection due to strong wind. A mounting plate body (1) has a mounting plate portion (2) and a pair of wind shield plate portions (3, 3) provided on both sides of the mounting plate portion (2) so as to be vertically opposed to each other and detachably mounted. The space between the opposing wind shields 3 and 3 is a space portion, and the position of the mounting hole 10 formed in the body 8 of the smoke detector 7 is approximately at the center of the mounting plate 2 of the mounting plate 1. An insertion hole 11 is formed at the same position, and the bolt 21 inserted through the mounting hole 10 of the body 8 and the insertion hole 11 of the mounting plate portion 2 is screwed into the screw hole 23 on the mounting surface 16 side such as the ceiling surface. The body 8 of the smoke sensor 7 and the mounting plate 1 are mounted on the mounting surface 16 to prevent strong wind from blowing directly into the body 8 of the smoke sensor 7 by the wind shield plates 3 and 3. [Selection diagram] FIG.

Description

  The present invention relates to a fire and smoke elimination facility, such as unlocking an emergency exit door, lowering a fire protection shirt, or closing a fire prevention door when a fire is detected by smoke. For example, if a smoke detector is installed on the ceiling of an outside corridor with an opening that leads to the outside of the building, the smoke detector should be installed so that it does not malfunction due to strong winds. The present invention relates to a device for mounting a smoke detector for a fire prevention and smoke prevention equipment which can be mounted.

  Ion smoke detectors and photoelectric smoke detectors are widely used as smoke detectors. In this ion-type smoke detector, air molecules ionized by radiation are applied between a pair of electrodes provided in a smoke detection unit in the body, and each of the air molecules is normally different by a DC voltage applied between the pair of electrodes. A weak ion current flows toward the pole electrode. In this state, if smoke enters between the electrodes of the smoke detector in the case, adsorption and recombination of ions by smoke particles will occur, the ion current will decrease, and this change in ion current will be sensed as smoke, and a fire signal will be generated. Alternatively, a configuration for outputting a fire information signal is employed.

  Also, in a photoelectric smoke detector, a light emitting element and a light receiving element are arranged in a smoke detecting portion in the body, and a state in which light from the light emitting element is scattered by smoke particles or the like is used as a light receiving element as smoke. When the light from the light emitting element of the smoke detector is reduced by smoke particles or the like, the light receiving element detects the light as smoke and outputs a fire signal or a fire information signal.

  And, for example, when a smoke detector for fire protection and smoke elimination equipment is attached to a ceiling surface or the like in an outer corridor of a building, the air is blown from a portion opened outside the outer corridor, particularly from an opening close to the ceiling surface. The strong wind flows into the smoke detector of the smoke detector, or hits the inner surface of the outer corridor, and the wind reverses and blows repeatedly toward the outer surface. And the smoke detector detects dust particles contained in the strong wind as smoke particles and outputs a fire signal or a fire information signal.

  In view of the above, a smoke detector has been proposed in which the structure inside the body of the smoke detector is improved so that strong wind is not directly blown into the smoke detector. For example, a backflow air flow path having one end opened in the outer surface of the body of the smoke sensor separately from the air inflow passage and the other end opened in the air inflow passage is blown into the backflow air passage in a strong wind. There has been proposed a smoke detector in which a backflow air flow is generated in an air inflow path by a strong wind to reduce the amount of air blown into a smoke detection unit so that malfunction of smoke detection does not occur (Patent Document 1). .

  Conventionally, a valve body for controlling the air flow rate is provided in the air inlet of the smoke detector body, and a control air intake hole is opened in the body separately from the air inlet hole. There has been proposed a smoke detector in which a valve body is actuated by a strong wind flowing from an air inlet for use to reduce the amount of air blown into a smoke detection unit so that malfunction of smoke detection does not occur ( Patent Document 2).

JP-A-55-116190 JP-A-55-116189

  However, as described in Patent Literature 1 and Patent Literature 2, the structure inside the body of the smoke detector is improved so that strong wind does not flow directly into the smoke detector, and the existing fire protection is used. In order to prevent the smoke detector from malfunctioning due to strong wind during maintenance and inspection of smoke prevention equipment, etc., it is necessary to replace the smoke detector, which is uneconomical and also replaces the smoke detector Depending on the type of smoke detector, the positions of the mounting holes for bolts etc. formed on the body differ, and it is troublesome to form a new bolt insertion hole on the mounting surface such as asbestos ceiling. There is a hanging problem.

  The present invention has been made in view of the above problems, and the smoke detector does not malfunction by detecting strong wind as smoke, for example, without replacing the smoke detector of the existing fire prevention and smoke prevention equipment, the existing smoke detector. It is an object of the present invention to provide an economical smoke detector mounting device for fire prevention and smoke prevention equipment, which can be mounted using the smoke detector of the present invention so that the smoke detector does not malfunction due to a strong wind or the like.

The device for mounting a smoke detector for fire prevention and smoke prevention equipment according to claim 1,
It has a mounting plate portion formed of a metal plate, and a pair of transparent windshield plates made of a transparent synthetic resin plate provided vertically only on both sides of the mounting plate portion and facing each other. A mounting plate having a space between the wind shield plates is provided. At a position substantially coincident with the position of the mounting hole formed in the body of the smoke detector at a substantially central portion of the mounting plate of the mounting plate. insertion hole is formed, the attachment to the smoke detector of the device body said mounting plate member and the mounting surface of the device body of the smoke detector in the mounting hole and the mounting plate of the insertion hole and the insertion was bolt It is a feature.

  Then, for example, in the outer corridor of the building, the body of the smoke detector is mounted between the windshield portions on both sides of the mounting plate mounted on the mounting surface such as the ceiling surface. When the smoke flows into the body of the smoke detector from below the mounting plate or between the windshields, the smoke detector in the body detects the smoke and outputs a fire signal or a fire information signal.

  In addition, for example, the strong wind blown from the portion opened to the outside of the outer corridor, particularly the opening close to the ceiling surface, hits the wind shield plate portion of the mounting plate body facing the outside where the strong wind blows, Alternatively, the wind shield plate portion of the mounting plate body attached to the inner side of the outer corridor, and further repeatedly inverts the wind and blows it toward the outer side while the wind faces in the direction in which the strong wind blows. When the wind speed is weakened, the smoke flows from the side or lower part of the wind shield into the smoke detector of the smoke detector with the wind speed reduced, and no strong wind blows into the smoke detector, causing a fire signal or There is no malfunction of outputting a fire information signal.

Also, the position of the insertion hole formed in the mounting plate portion of mounting plate member, since the position of the mounting hole formed in the device body of the smoke detector are matched, the mounting hole and the mounting of the device body of the smoke detector The bolts inserted into the through holes of the plate portion are screwed together, for example, using the screw holes formed in the mounting surface of the building or the screw holes formed in the outlet box as they are, and the existing fire prevention and discharge prevention are performed. The body of the smoke facility smoke detector and the mounting plate having the wind shield plate can be mounted on the mounting surface. Further, in a state where the windshield plate is mounted on a ceiling surface or the like, the windshield plate is transparent and bright and inconspicuous.

Mounting device fire and Bohai smoke equipment for smoke sensor according to claim 2, wherein, in the mounting device of fire and Bohai smoke equipment for smoke sensor according to claim 1, both of the mounting plate portion of mounting plate member The upper part of the windshield is detachably fastened to a mounting piece formed by bending each side edge at substantially a right angle.

The mounting plate member is mounted detachably to windshield plate portion on both side edges of the mounting plate portion, at the time of storage and at the time of transportation by removing the air baffle plate, have the good handling properties without bulky.

According to the invention of claim 1 Symbol placement, the device body of the fire and Bohai smoke equipment for smoke sensor attached to the mounting surface such as ceiling surface is provided on both sides of the mounting plate portion of mounting plate member is disposed between the windshield plates portions are, without blown into smoke of vessels within the smoke detector to directly winds the wind shielding plate portion, it smokes part you sensed as smoke winds Without it, and because the insertion hole formed in the mounting plate was formed at the position corresponding to the position of the mounting hole of the smoke detector body, when mounting the smoke detector body on the mounting surface, the ceiling etc. The mounting plate and smoke detector can be mounted using the screw holes formed on the mounting surface side of the as-is, and bolts can be attached to the mounting surface of asbestos, etc. during maintenance and inspection of fire and smoke prevention equipment. A mounting plate with a wind shield plate using the insertion hole as it is It can be easily attached. Further, the wind shield plate is transparent and inconspicuous in the mounted state, and does not feel bright and closed.

According to the invention of claim 2 Symbol placement, since the mounting plate body was detachable windshield plate portion to the mounting plate portion may be decomposed into a mounting plate portion and the windshield plate portion, transportation, handling properties such as storage not good.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the mounting apparatus of the smoke detector for fire prevention and smoke exhaust equipment which shows one Embodiment of this invention. FIG. 2 is a longitudinal sectional view of the device in a state where a smoke detector for fire prevention and smoke emission prevention equipment is attached, same as above. It is explanatory drawing of the state where the smoke detector for fire prevention and smoke prevention equipment was attached.

  As shown in FIG. 1, the mounting device for a smoke detector for fire prevention and smoke emission prevention equipment has a mounting plate 1, which is formed of a metal plate such as a stainless steel plate or an aluminum plate. A substantially square mounting plate portion 2, and a pair of wind shielding plate portions 3 such as a transparent vinyl chloride resin plate and an acrylic resin plate which are vertically and opposed to both sides of the mounting plate portion 2. have. The mounting plate 2 has mounting pieces 4 and 4 formed by bending both sides of the mounting plate 2 at a substantially right angle downward, and the mounting pieces 4 and 4 are respectively provided with the windshield plates 3 and 3. The bolts 5 are inserted through bolt insertion holes of the mounting pieces 4 and 4 and the windshield plates 3 and 3 and a nut 6 screwed to the bolt 5 (shown in FIG. 2). Then, the wind shield plates 3, 3 are fastened and fixed to the mounting pieces 4, 4, respectively.

  Next, as shown in FIG. 2, a portion of the smoke detector 7 protruding from the upper surface of the body 8 is fitted into a substantially central portion of the mounting plate 2 of the mounting plate 1, or A substantially circular opening 9 through which the lead wire is inserted is formed. The opening 9 is located around the opening 9 and corresponds to each position of a plurality of mounting holes 10 formed in the body 8 of the smoke detector 7. A plurality of insertion holes 11 are formed in accordance with the positions.

  The body 8 of the smoke detector 7 has an inlet 12 through which smoke flows, and an ionizing smoke detector or a photoelectric smoke detector communicating with the inlet 12 is provided inside the body 8. When the smoke detector detects the inflow of smoke, the smoke detector outputs a fire signal or a fire information signal. For example, as shown in FIG. In order to prevent fires and fires from occurring, close the fire escape door 25, open the emergency exit door, lower the fire protection shirt, or close the fire door, etc. Activate the smoke facility.

  Next, the operation of this embodiment will be described.

  As shown in FIG. 3, the mounting plate portion 2 of the mounting plate 1 is brought into contact with a mounting surface of an outer corridor 15 which leads to a stair 14 of a building 13, for example, a ceiling surface 16 such as asbestos. At this time, the wind shield plates 3 and 3 attached to the attachment plate 2 are opposed to each other in the direction in which the wind flows from the open portion of the outer corridor 15. For example, the outer side face 18 having an open portion opened outside the outer corridor, and the inner side face 19 facing the outer side face 18 are opposed. Then, the wind 17 blown from the outside direction blows from the outer side surface 18 of the outer corridor 15, and further bounces on the inner side surface, and at the place facing the outer side surface 18, the windshield plates are provided on both side surfaces 18 and 19 of the corridor 15. The mounting plate 2 is brought into contact with the ceiling surface 16 with the 3 and 3 facing. At this time, the respective insertion holes 11 of the mounting plate 2 are aligned with the respective insertion holes 20 formed in the ceiling surface 16, and in this state, the mounting holes 10 formed in the body 8 of the smoke detector 7 are mounted. A bolt 21 is inserted through the insertion hole 11 of the mounting plate portion 2 of the plate 1, and the bolt 21 is inserted into, for example, the insertion hole 20 of the ceiling surface 16 and fixed to the outlet box 22 fixed to the inner surface side of the ceiling surface 16. The mounting plate 2 and the container body 8 are simultaneously fixed to the ceiling surface 16 by being screwed and fastened to the formed screw holes 23 or nuts fixed to the ceiling surface 16.

  In this state, the wind shield portions 3 and 3 of the mounting plate 1 face, for example, one side surface 18 and the other side surface 19 of the outer corridor 15. Further, the wind shield plates 3 and 3 of the mounting plate 1 are transparent, bright and inconspicuous, so that the user does not feel a feeling of obstruction.

  When the smoke detector 7 detects smoke generated by a fire in a state where the smoke detector 7 is mounted on a ceiling surface or the like with the mounting plate 1, a smoke detection signal output from the smoke detector 7 is used. Outputs a fire signal or fire information signal, for example, closing the smoke exhaust door, unlocking the emergency exit door, lowering the fire protection shirt, so that the stairs 14 do not blow up smoke due to the chimney action, or Activate fire prevention and smoke emission equipment such as closing fire doors.

  In addition, a strong wind such as a typhoon blowing on the outside of the building flows into the outer corridor 15 from the opening on the outer surface 18 of the outer corridor 15, and the strong wind blows, hits the inner surface 19 of the outer corridor 15, and the outer corridor 15 Of the outside corridor 15 to the outside face 18 of the outside corridor 15, and strong wind flows from the outside face 18 toward the inside face 19. When the wind hits the wind shield plate 3 of the mounting plate 1 attached to the ceiling surface 16 due to this wind flow, the wind is weakened and flows to the left and right sides of the wind shield plate 3. The wind that reaches the body 8 of the smoke detector 7 from between the windshield 3 and the other windshield 3 is weakened, and strong wind does not flow directly into the body 8, and The sensing unit does not output a smoke detection signal due to particles flowing in due to strong wind, and the smoke detector does not malfunction in smoke detection due to strong wind.

  Further, the mounting plate 1 is separated into the mounting plate 2 and the wind shields 3 and 3 so that it is not bulky and can be easily transported and stored.

  In the above embodiment, the mounting plate 1 is configured to be separable into the mounting plate 2 and the wind shields 3, 3, but may be integrated.

DESCRIPTION OF SYMBOLS 1 Mounting plate 2 Mounting plate 3 Wind shield plate 4 Mounting piece 7 Smoke detector 8 Smoke detector
10 Mounting holes for body
11 Insertion hole
16 Ceiling surface, which is the mounting surface

Claims (2)

It has a mounting plate portion formed of a metal plate, and a pair of transparent windshield plates made of a transparent synthetic resin plate provided vertically only on both sides of the mounting plate portion and facing each other. A mounting plate having a space between the wind shield plates is provided. At a position substantially coincident with the position of the mounting hole formed in the body of the smoke detector at a substantially central portion of the mounting plate of the mounting plate. An insertion hole is formed, and the mounting plate and the body of the smoke sensor are attached to a mounting surface with bolts inserted into the attachment hole of the body of the smoke sensor and the insertion hole of the attachment plate. Characteristic mounting equipment for smoke detectors for fire prevention and smoke control equipment. The mounting piece portion formed by bending at substantially right angles on both side edges of the mounting plate portion of mounting plate member, as claimed in claim 1, characterized in that it has secured detachably to the upper portion of the windshield plates portion Mounting equipment for smoke detectors for fire and smoke control equipment.

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