JP2012118962A - Operation tester for smoke sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation tester for a smoke sensor that stably generates test smoke although having its whole structure simplified to be lightweight and low-cost, and further reduce running costs.SOLUTION: The operation tester for the smoke sensor includes a hood which covers the circumferential space of the smoke sensor, a smoking device 2 which generates the test smoke, a housing which houses the smoking device 2, and a column which supports the housing. The smoking device 2 comprises a smoking container 25 which houses paraffin P, a heater 26 and a suction wick 27 housed in the smoking container 25, a power source, etc. The suction wick 27 includes a smoking part 41 which is made of a liquid absorbing material formed by braiding thin metal wires and adjoins the heater 26, and a suction part 42 which comes into contact with the paraffin P. Heat of the heater 26 is conducted through the smoking part 41 and suction part 42 to fuse the paraffin P, and liquid paraffin P which is sucked up through capillarity of the suction part 42 and smoking part 41 is heated by the heater 26 to generate the test smoke.

Description

  The present invention relates to an operation tester for a smoke detector used for confirming the operation of a smoke detector installed on a ceiling or the like.

  As this type of operation tester, an operation tester having a form in which chlorofluorocarbon gas is ejected as test smoke is known (Patent Document 1). There, the operation tester is composed of a bowl-shaped cover fixed to the upper end of the pipe and a gas cylinder attached to the lower end of the pipe. A nozzle lever is provided in the upper part of the gas cylinder, and by depressing this lever, the fluorocarbon gas filled in the gas cylinder can be ejected into the cover through a tube disposed in the pipe. As described above, the operation tester using the chlorofluorocarbon gas as the test smoke can instantaneously fill the inside of the cover with the chlorofluorocarbon gas simply by operating the nozzle lever, and the operation of the smoke detector can be confirmed in a shorter time. However, chlorofluorocarbon gas has a significantly greater global warming potential than carbon dioxide gas, and its use tends to be limited. It may be specified as a condition. Further, since chlorofluorocarbon is used as the test smoke, there is a disadvantage that the running cost required for checking the operation of the smoke detector is high.

  In the operation tester of the present invention, solid paraffin is used as a smoke generating material that does not affect global warming. However, an operation test device using solid paraffin as a smoke generating material is known, for example, in Patent Document 2. There, solid paraffin is raised by a solenoid and brought into contact with a heat generating plate to generate test smoke. Patent Document 3 also discloses an operation tester using solid paraffin as a smoke generating material. There, a heating heater and a heat retaining heater are embedded in the paraffin. At the time of use, the heating heater is heated by a commercial power source so that it can emit smoke to some extent. After the energization of the heating heater is stopped, the warming heater is operated to maintain the smoke generation state. The warming heater can be driven by using a battery disposed inside the operation rod as a power source.

  In the operation tester of the present invention, the melted paraffin is sucked up by a tape-shaped suction core braided with a copper fine wire and heated by a heater to generate test smoke. In this way, the fuming material is sucked up by capillary action. An operation tester is known from US Pat. There, oil is sucked up by an asbestos sucking wick, and the oil sucked up by a nichrome wire wound around the sucking wick is heated to generate test smoke.

Japanese Patent Laying-Open No. 2010-079828 (paragraph numbers 0002 and 0037, FIG. 1) Registered Utility Model No. 3097430 (paragraph number 0024, FIG. 2) JP-A-53-017297 (page 1, right column, line 8 to page 2, left column, line 2, FIG. 1) Microfilm of actual application No. 54-047834 (No. 55-150491) (Specification, page 1, line 13, FIG. 1)

  In the operation tester of Patent Document 2, solid paraffin is raised by a solenoid and brought into contact with a heating plate. Therefore, the smoke generation structure becomes complicated and large, and when performing an operation test, a heavy battery must be carried as a driving power source such as a heater, blower fan, and solenoid, and the operation tester is handled as a whole. Was annoying. In addition, the main switch provided at the lower end of the support bar and the solenoid switch are turned on to bring solid paraffin into contact with the heating plate to generate smoke, so a series of work takes time and the operation of the smoke detector is confirmed. Cannot be done in a short time.

  Also, in the operation tester of Patent Document 3, the heating heater is heated with a commercial power source to preheat paraffin, and thereafter, the warming heater using the battery as the power source is operated to maintain the smoke generation state. Difficulty in smoke generation due to differences in environmental temperature conditions. For example, in a low-temperature test environment, the temperature of paraffin may decrease, and test smoke necessary for confirming the operation of the smoke detector may not be generated.

An object of the present invention is to provide an operation tester for a smoke detector that can stably generate test smoke and reduce running costs while simplifying the overall structure to achieve weight reduction and cost reduction. is there.
An object of the present invention is to provide an operational tester for a smoke detector excellent in usability that can heat a paraffin by operating a heater simply by pressing a hood against a surrounding wall of the smoke detector.

  An operation tester for a smoke detector according to the present invention includes a hood 1 that covers a space around the smoke detector S, a smoke generator 2 that generates test smoke, and supplies the generated test smoke into the hood 1, and a smoke generator. 2, and a support 4 that supports the housing 3. As shown in FIG. 1, the smoke generator 2 includes a smoke container 25 that stores paraffin P, a heater 26 and a suction core 27 that are stored in the smoke container 25, and a power supply 28 that supplies a drive current to the heater 26 (FIG. 1). 4). The suction core 27 is composed of a liquid absorbing material braided with fine metal wires, and a smoke generating part 41 disposed adjacent to the heater 26, and a suction part 42 that is led out from the smoke generating part 41 and contacts the paraffin P. And. The heat of the heater 26 is conducted through the smoke generating part 41 and the sucking part 42 to melt the paraffin P, and the liquid paraffin P sucked up by the capillary phenomenon of the sucking part 42 and the smoke generating part 41 is heated by the heater 26. To produce test smoke.

  The smoke container 25 includes a metal container main body 33, a ceramic paraffin base 35 disposed on the inner bottom of the container main body 33, and a ceramic cylindrical heater holder 36 protruding from the center of the paraffin base 35. Including. A metal protective cylinder 40 that covers the periphery of the heater 26 is fixed to the protruding end of the heater holder 36. The smoke generating portion 41 of the suction core 27 is wound a plurality of times in close contact with the periphery of the protective cylinder 40. The suction part 42 of the suction core 27 is arranged along the paraffin base 35 from the peripheral surface of the heater holder 36 and contacts the bottom of the paraffin P accommodated in the container body 33.

  A power source for supplying a driving current to the heater 26 is constituted by a secondary battery 28. The inside of the housing 3 is divided into an upper smoke chamber 14 that houses the smoke container 25 and a lower electrical component chamber 15 that houses the secondary battery 28. Of the smoke container 25 and the secondary battery 28, At least the secondary battery 28 is detachably attached to the housing 3.

  The hood 1 is guided and supported by the housing 3 so as to be reciprocally slidable between the standby position and the closed position, and is held at the standby position by a spring 19 provided therebetween. A power supply switch 30 for turning on / off the power supply state for the heater 26 is disposed in the housing 3. The relative movement of the hood 1 and the housing 3 when the hood 1 is operated in close contact with the mounting wall of the smoke detector S causes the power supply switch 30 to be turned on.

  A wireless remote controller receiver 61 is arranged in the housing 3. The receiver 61 receives a signal from the transmitter 62 of the wireless remote controller carried by the worker, and turns on / off the energization state of the heater 26.

  A stirring fan 5 for forcibly circulating the test smoke is provided in the smoke generation chamber 14 of the housing 3.

  A pair of suspension arms 55 are fixed to the outer surface of the housing 3. A pair of support arms 56 fixed to the ends of the support column 4 support the suspension arm 55 via a swing shaft 57 so that the housing 3 and the hood 1 can swing relative to the support column 4. To do.

  A power source for supplying a driving current to the heater 26 is constituted by a secondary battery 28. The interior of the housing 3 is divided into an upper smoke chamber 14 that houses the smoke container 25 and a lower electrical component chamber 15 that houses the secondary battery 28. A fan 85 that generates pressurized air is provided on the electrical component chamber 15 side. A duct 76 is provided between the smoke generation chamber 14 and the electrical component chamber 15 to guide the supply of pressurized air supplied from the fan 85 toward the smoke generation container 25.

  The smoke container 25 includes a metal container main body 33 and a ceramic cylindrical heater holder 36 protruding in the center of the container main body 33. A metal protective cylinder 40 that covers the periphery of the heater 26 is fixed to the protruding end of the heater holder 36. The smoke generating portion 41 of the suction core 27 is wound a plurality of times in close contact with the periphery of the protective cylinder 40. The suction part 42 of the suction core 27 is disposed along the inner bottom of the container main body 33 from the peripheral surface of the heater holder 36, and contacts the bottom of the paraffin P accommodated in the container main body 33.

  In the present invention, the smoke generator 2 of the operation tester includes the smoke container 25 containing the paraffin P, the heater 26 and the suction core 27 housed in the smoke container 25, the power supply 28 for supplying a driving current to the heater 26, and the like. Configured. The smoke generating part 41 adjacent to the heater 26 and the suction part 42 in contact with the paraffin P constitute the suction core 27, and the heat of the heater 26 is conducted through the smoke generating part 41 and the suction part 42 to be paraffin. P was melted. Further, the sucking core 27 is made of a liquid absorbing material braided with fine metal wires, so that the melted paraffin P is sucked up to the smoke generating part 41 by capillary action and vaporized by the heat of the heater 26 to generate test smoke. I made it.

  According to the smoke generating device 2 configured as described above, compared to the conventional smoke generating structure in which paraffin is moved up and down with a solenoid and moved to and away from the heater, the smoke generating device which is the main structure of the operation tester as much as there are no moving parts. The structure of 2 can be simplified, and the weight and cost of the operation tester can be reduced. Moreover, since the paraffin P is used as the smoke generating material, it can contribute to the prevention of global warming and the running cost can be reduced as compared with the operation tester using the chlorofluorocarbon gas as the test smoke. Furthermore, since the liquefied paraffin P is sucked by the sucking section 42 and the smoke generating section 41 and heated by the heater 26 to generate test smoke, the paraffin P is locally heated excessively or is unnecessarily vaporized. It is possible to stably generate test smoke.

  When the smoke container 25 is constituted by the metal container body 33, the ceramic paraffin base 35 and the heater holder 36, and the paraffin P is accommodated therein, it is heated by the heat storage action of the paraffin base 35 and the heater holder 36. The temperature state of the paraffin P can be maintained. Therefore, even in a low temperature test environment, the temperature of the paraffin P can be prevented from decreasing, and the test smoke can be generated without delay. Further, the protective cylinder 40 of the heater 26 is fixed to the projecting end of the heater holder 36, and the smoke generating part 41 of the suction core 27 is wound around the periphery of the heater holder 36 a plurality of times, so that the liquid paraffin P sucked up to the smoke generating part 41 Heating can be performed effectively. Furthermore, since the suction part 42 of the suction core 27 is brought into contact with the bottom part of the paraffin P and the melted part of the paraffin P grows from the center of the bottom face to the top face side and the peripheral face side, the paraffin P is consumed unnecessarily. Test smoke can be generated efficiently while eliminating the problem.

  When the interior of the housing 3 is divided into an upper smoke chamber 14 that accommodates the smoke container 25 and a lower electrical component chamber 15 that accommodates the secondary battery 28, test smoke and molten paraffin P are contained in the electrical component chamber 15. Can be prevented from flowing into the side. In addition, by attaching at least the secondary battery 28 to the housing 3 so as to be detachable from the smoke container 25 and the secondary battery 28, the secondary battery 28 can be easily attached and detached to charge the secondary battery 28. Exchange can be performed easily. When the smoke container 25 is detachable, maintenance such as replenishment of paraffin P and cleaning of the inner surface of the smoke container 25 can be easily performed.

  When the power supply switch 30 is switched on using the relative movement of the hood 1 and the housing 3 when the hood 1 is operated in close contact with the mounting wall around the smoke detector S, it is necessary to switch the power supply switch 30. There is no. Therefore, an operator when performing the operation test can supply the test smoke by operating the heater 26 only by pressing the hood 1 against the surrounding wall of the smoke detector S, and the hood 1 can be supplied to the surrounding wall of the smoke detector S. It is possible to stop energization of the heater 26 only by separating from the heater. Thus, the heater 26 can be operated only when necessary, and unnecessary consumption of the secondary battery 28 due to forgetting to switch off can be eliminated, thereby improving the usability of the operation tester.

  When the energization state of the heater 26 is switched between the transmitter 62 and the receiver 61 of the wireless remote controller, the energization state of the heater 26 can be performed with a simple operation by simply operating the transmission button 63 of the transmitter 62. Can be turned on and off quickly. The structure of the operation tester can be simplified as compared with the case where the power supply switch 30 is switched to the on state using the relative movement of the hood 1 and the housing 3. Further, an operator who does not support the operation tester can operate the transmitter 62 to turn on / off the energization state of the heater 26.

  When the stirring fan 5 is provided in the smoke generation chamber 14 of the housing 3, the test smoke in the hood 1 is forcibly circulated so that the smoke detector S can detect the test smoke with a smaller amount of test smoke. Further, the time required for detecting the test smoke can be shortened, the consumption amount of the paraffin P and the secondary battery 28 can be reduced as a whole, and the running cost required for the operation test of the smoke detector S can be reduced.

  A pair of suspension arms 55 provided on the housing 3 are pivotally supported by a pair of support arms 56 provided on the support column 4 via a swing shaft 57, and the housing 3 and the hood 1 can swing relative to the support column 4. If the support 4 is supported, the hood 1 can be in close contact with the surrounding wall of the smoke detector S even when the column 4 is inclined. Therefore, even when there is a desk or table directly under the smoke detector S, the hood 1 can be brought into close contact with the surrounding wall of the smoke detector S and the operation test can be performed accurately.

  The inside of the housing 3 is divided into an upper smoke chamber 14 that houses the smoke container 25 and a lower electrical component chamber 15 that houses the secondary battery 28, and is sent from a fan 85 provided in the electrical component chamber 15. When the supplied compressed air is guided to the smoke container 25 through the duct 76, the test smoke generated in the smoke container 25 is reliably supplied to the smoke detector S, and the smoke sensor S Test smoke can be detected with a smaller amount of test smoke. Further, the time required for detecting the test smoke can be shortened, the consumption amount of the paraffin P and the secondary battery 28 can be reduced as a whole, and the running cost required for the operation test of the smoke detector S can be reduced. Further, when the fan 85 is disposed in the electrical component chamber 15, the test smoke, that is, vaporized paraffin P, does not touch the fan 85, so that the vaporized paraffin P adheres to the fan blade of the fan 85 and cools on the blade surface. It can be dissolved.

  When the smoke container 25 is constituted by the metal container body 33 and the ceramic heater holder 36 and the paraffin P is accommodated therein, the temperature of the heated paraffin P is suppressed from being lowered, and the test is performed without delay. Can produce smoke. Since the protective cylinder 40 of the heater 26 is fixed to the protruding end of the heater holder 36 and the smoke generating part 41 of the suction core 27 is wound around and closely attached to the periphery thereof, the liquid paraffin P sucked up to the smoke generating part 41 is heated. Can be done effectively. Furthermore, since the suction part 42 of the suction core 27 is brought into contact with the bottom part of the paraffin P and the melted part of the paraffin P grows from the center of the bottom face to the top face side and the peripheral face side, the paraffin P is consumed unnecessarily. Test smoke can be generated efficiently while eliminating the problem.

It is a vertical front view of the smoke generator of the operation tester according to the present invention. It is a side view of the operation tester concerning the present invention. It is a front view of the operation tester concerning the present invention. It is a longitudinal cross-sectional view of the smoke generator which concerns on this invention. It is a longitudinal cross-sectional view of the smoke generator which concerns on this invention. It is a longitudinal cross-sectional view which shows the operating state of the electric power feeding switch at the time of use. It is the sectional view on the AA line in FIG. It is a schematic wiring diagram of an electrical component. It is a longitudinal cross-sectional view which shows the replacement | exchange condition of a secondary battery. It is a longitudinal cross-sectional view of the smoke generator which concerns on another Example. It is a side view of the operation test device concerning another example. It is a longitudinal cross-sectional view of the smoke generator which concerns on another Example. It is a longitudinal cross-sectional view which shows the attachment or detachment state of a secondary battery and a smoke generator. It is a schematic wiring diagram of an electrical component including a wireless remote control. It is a longitudinal cross-sectional view of the operation test device which concerns on another Example. It is a longitudinal cross-sectional view of the smoke generator which concerns on another Example. It is a longitudinal cross-sectional view of the smoke generator which concerns on another Example. It is a side view of the operation tester concerning another example.

(Example) FIG. 1 thru | or FIG. 9 shows the Example of the operation tester for smoke detectors based on this invention. 2 and 5, the operation tester includes a hood 1 that covers the space around the smoke detector S, a smoke generator 2 that generates test smoke, and supplies the generated test smoke into the hood 1, and a smoke generator 2. It comprises a housing 3 to be accommodated, a support column 4 that supports the housing 3, a stirring fan 5, and the like. The hood 1 is composed of a bowl-shaped hood main body 7 whose upper and lower surfaces are open, a cylindrical hood base 8 fixed to the lower end of the hood main body 7, and a packing 9 attached to the upper opening edge of the hood main body 7. To do. The hood main body 7 is made of an aluminum press-molded product, and the lower end edge of the hood main body 7 is externally fitted to the upper end of the hood base 8 and fixed with screws. The hood base 8 is made of an aluminum cylinder, and vertically long slide grooves 10 are formed at three locations on the peripheral surface thereof.

  The housing 3 is made of an aluminum cylinder. As shown in FIG. 4, the interior of the housing 3 is vertically divided by a partition wall 13, and a smoke generation chamber 14 and an electrical component chamber 15 are provided above and below the partition wall 13. The upper smoke chamber 14 communicating with the internal space of the hood body 7 accommodates the smoke generator 2 and the stirring fan 5, and the lower electrical component chamber 15 has a secondary battery (power source) 28, switches 29 and 30 and the like. Is housed. The stirring fan 5 is an axial fan and is supported by a bracket 6 fixed to the upper end of the housing 3. The agitating fan 5 supplies pressurized air toward the upper space of the smoke generating device 2 to forcibly agitate the air in the smoke generating chamber 14 and the hood 1. Thereby, the test smoke generated by the smoke generating device 2 can be reliably delivered to the smoke detector S, and the operation test of the smoke detector S can be performed with a smaller amount of test smoke.

  An openable / closable lid 16 is provided on the lower surface of the housing 3, and the electrical component chamber 15 can be opened and closed by opening and closing the lid 16. Reference numeral 17 denotes a hinge that supports the lid 16, and reference numeral 18 denotes a lever link type stopper that holds the lid 16 in a closed state. The previous hood 1 is externally fitted to the housing 3 and supported so as to be able to slide relative to the standby position and the closed position, and is held at the standby position by a spring 19 provided between the two. Specifically, the hood base 8 is slid and guided by the housing 3, and a tension coil type is formed between a pin 20 screwed into the peripheral surface of the housing 3 through the slide groove 10 and a pin 21 fixed to the lower portion of the hood base 8. The spring 19 is hooked, and the hood 1 is pulled up and biased so that the former pin 20 is positioned at the lower end of the slide groove 10 in a normal state (see FIG. 2). As shown in FIG. 7, the pins 20 and 21 and the spring 19 are provided at three locations around the housing 3 and the hood base 8.

  In FIG. 1, the smoke generating device 2 includes a smoke generating container 25 that stores paraffin P, a heater 26 and a suction core 27 that are stored in the smoke generating container 25, and a housing 2 that supplies a driving current 2 to the heater 26. The battery includes a secondary battery 28 (see FIG. 5), a power switch 29, a power supply switch 30, and the like. The smoke container 25 includes a dish-shaped container body 33 made of a stainless steel (metal) turning product, a container lid 34 screwed into the container body 33, a paraffin base 35 disposed in the container body 33, and The heater holder 36 is used. The container body 33 is arranged at the center of the upper surface of the partition wall 13 via a heat-resistant resin seat plate 37 and is fixed by a bolt 38 screwed from the lower surface side of the partition wall 13. A test smoke outlet 39 is opened at the center of the container lid 34.

  The paraffin base 35 formed in a disk shape and the heater holder 36 formed in a cylindrical shape are each formed of ceramics, and the heater holder 36 is assembled to the paraffin base 35 in a vertically penetrating manner and integrated. . The paraffin base 35 and the heater holder 36 are assembled to the container body 33 such that the former 35 is received by the bottom wall of the container body 33 and the lower end surface of the latter 36 is flush with the lower surface of the container body 33. In this assembled state, the upper end of the heater holder 36 protrudes upward from the upper surface of the paraffin base 35, and the heater 26 and the suction core 27 are incorporated in this protruding portion.

  As the paraffin P, plant-based wax, animal-based wax, petroleum-based wax and the like that maintain a solid at normal temperature can be used, but animal-based beeswax is preferably used. The paraffin P is formed into a donut shape in advance, and is loaded into the smoke container 25 with a central hole surrounding the heater holder 36 and the suction core 27.

  The heater 26 is a commercially available round-shaft ceramic heater, and its outer surface is covered with a protective cylinder 40 made of stainless steel (metal). The heater 26 is fixed to the heater holder 36 by fixing the lower end of the protective cylinder 40 to the upper end of the inner surface of the heater holder 36. In this attached state, most of the protective cylinder 40 protrudes above the heater holder 36 and its upper end faces the inner peripheral surface of the outlet 39 of the container lid 34 (see FIG. 1).

  The suction core 27 is led out from the smoke generating portion 41 wound around the protective cylinder 40 of the heater 26 a plurality of times, and the upper and lower ends of the smoke generating portion 41, and from the peripheral surface of the heater holder 36 to the paraffin base 35. A suction portion 42 arranged in an L shape along is integrally provided. The suction core 27 is formed by using a tape-like liquid absorbent material in which copper (metal) thin wires are flat knitted, specifically, a commercially available solder absorption wire, and sucks up the liquid by capillary action. Can do. In addition to a tape-shaped solder absorption line braided with copper thin wires, a solder absorption line formed by knitting copper thin wires may be used. The power supply lead 43 of the heater 26 is led out to the electrical component chamber 15 side through the inside of the cylinder of the heater holder 36 and through the seat plate 37 and the partition wall 13 and connected to the battery unit 45.

  In FIG. 4, the battery unit 45 includes four cylindrical secondary batteries 28 and a rectangular box-shaped battery case 46 that accommodates these secondary batteries 28. In order to keep the battery unit 45 detachable, a holder 47 that opens downward is fixed to the lower surface of the partition wall 13, and a presser spring 48 is provided on the inner surface of the lid 16. A pair of connectors 49 are fixed to the ceiling wall of the holder 47, and a pair of connectors 50 corresponding to the connectors 49 on the holder 47 side are fixed to the upper wall of the battery case 46. One of the previous power supply leads 43 is connected to one connector 49 on the holder 47 side. With the lid 16 opened, the battery unit 45 is loaded into the holder 47, and the lid 16 is closed and fixed with the stopper 18, whereby the lower end surface of the battery case 46 is pushed up by the presser spring 48, and the battery unit 45 Can be fixedly held. In this fixed state, the secondary battery 28 is held in a vertically long posture.

  FIG. 8 shows an outline of the connection state of the agitating fan 5, the heater 26, the battery unit 45, the power switch 29 and the power supply switch 30. Actually, as shown in FIGS. 4 and 6, the power switch 29 is disposed below the peripheral wall of the housing 3, and the power supply switch 30 is disposed above the power switch 29. The power switch 29 is a commercially available slide switch, and the power supply path of the heater 26 and the stirring fan 5 can be switched on or off by sliding the switching knob.

  The power supply switch 30 is a commercially available microswitch, and switches the previous power supply path on or off using the relative vertical sliding movement of the hood 1 and the housing 3. For this purpose, the detection lever 30 a of the power supply switch 30 is exposed on the outer surface of the housing 3 and faces the slide area of the hood base 8. A guide surface 53 for the detection lever 30a is formed obliquely on the inner surface of the lower end of the hood base 8 (see FIG. 6). The detection lever 30a is normally received by the guide surface 53 as shown in FIG. 4, and the power supply switch 30 in this state is in an OFF state. When the hood 1 is pressed against the ceiling wall around the smoke detector S, the housing 3 rises with respect to the hood base 8 as shown in FIG. 6, and the detection lever 30a is pushed by the inner wall of the hood base 8 accordingly. Then, the power supply switch 30 is switched to the on state. That is, the power supply switch 30 can be switched to the on state by the relative movement operation of the hood 1 and the housing 3 when the hood 1 is in close contact with the mounting wall of the smoke detector S.

  Regardless of the posture of the support column 4, a pair of suspension arms 55 are fixed at opposing positions on the outer surface of the housing 3 in order to properly attach the upper opening of the hood 1 to the ceiling wall. A pair of support arms 56, which are fixed to the upper end of the column 4, are pivotally supported via a swing shaft 57. A screw shaft 58 to be screwed into the suspension arm 55 is provided at one end of the swing shaft 57, and an operation head 59 is provided at the other end (see FIG. 7). Thus, if the hood 1 and the housing 3 are supported so as to be able to swing relative to the support column 4, the packing 9 of the hood 1 is attached to the ceiling wall even when the support column 4 is not vertical as shown in FIG. 2. The space covered with the hood body 7 can be sealed by closely contacting.

  When performing the operation test of the smoke detector S, the paraffin P is first preheated. Specifically, the power switch 29 is switched to the on state, and the detection lever 30a is further pressed to switch the power supply switch 30 to the on state, thereby operating the heater 26. Heat of the heater 26 is conducted from the protective cylinder 40 to the paraffin P through the smoke generating portion 41 and the suction portion 42 of the suction core 27, and the paraffin P around the suction portion 42 can be mainly melted. The melted and liquefied paraffin P is sucked from the sucking portion 42 to the smoke generating portion 41 by the capillary phenomenon of the sucking core 27 and is vaporized by receiving heat from the heater 26. Thus, by performing an operation test in a state in which preheating is performed and test smoke can be generated immediately, the time until the paraffin P is liquefied and further vaporized can be shortened.

  As shown in FIGS. 3 and 6, in the closed position in which the hood body 7 is in close contact with the ceiling wall around the smoke detector S, the housing 3 rises with respect to the hood base 8 and the power supply switch 30 is turned on. Switch to state. As a result, the heater 26 is activated, the paraffin P is heated through the suction core 27, and at the same time, the agitating fan 5 is activated to agitate the test smoke generated by the smoke generating device 2 while feeding it in one direction. Therefore, the test smoke circulates inside the hood body 7 as indicated by an arrow in FIG. 6 and enters the inside of the detection port provided at the lower part of the smoke detector S. When it is confirmed that the smoke detector S has detected the test smoke, the hood body 7 is separated from the ceiling wall, and the operation test of the smoke detector S to be tested next is performed. When the hood main body 7 is away from the ceiling wall, the hood 1 returns to the standby position, so that the power supply switch 30 is switched to an off state and the energization to the heater 26 is stopped. Incidentally, since the melting point of beeswax is 70 ° C. or less, the vaporization temperature is 130 ° C., and the ignition temperature is 300 ° C., the smoke generating part 41 does not reach the ignition temperature unless the heater 26 is continuously operated.

  10 to 14 show an operation tester for a smoke detector according to another embodiment. This embodiment is different from the previous embodiment in that the stirring fan 5 and the heater 26 are energized by a wireless remote controller and that the smoke container 25 can be attached to and detached from the housing 3. Specifically, a remote controller receiver 61 is arranged inside the electrical component room 15 (see FIG. 12), and the power supply switch 30 is set by a signal from a remote controller transmitter 62 (see FIG. 11) carried by the operator. It can be switched between an on state and an off state. The transmitter 62 is provided with a transmission button 63. When the transmission button 63 is pressed once, the power supply switch 30 is turned on. When the transmission button 63 is pressed again, the power supply switch 30 is turned off. The receiver 61 and the transmitter 62 may be either a system using infrared as a communication medium or a system using ultrasonic waves as a communication medium. After the power supply switch 30 is switched on, the heater 26 may be energized for a predetermined time with a timer.

  In order to attach / detach the smoke container 25 to / from the housing 3, as shown in FIGS. 10 and 13, a circular loading recess 64 is provided on the upper surface of the partition wall 13, and a pair of holding levers 65 are provided at opposing positions on the outer surface. . The holding lever 65 can swing back and forth about a shaft 66 and is urged to swing by a compression coil spring 67. As shown in FIG. 10, after the smoke container 25 is fitted into the loading recess 64, the smoke container 25 is pressed by pressing the step 68 provided on the peripheral surface of the container body 33 with the presser claw 69 of the holding lever 65. Can be fixed. In addition, as shown in FIG. 13, the smoke generating container 25 can be removed from the loading recess 64 by performing a widening operation while the pair of holding levers 65 resists the biasing force of the spring 67. In order to perform electrical connection in conjunction with the attachment / detachment of the smoke container 25, a connector 72 is provided on the substrate 71 disposed below the partition wall 13, and a connector corresponding to the connector 72 on the substrate 71 side is provided on the lower surface of the container body 33. 73 is fixed.

  As described above, when the smoke container 25 can be attached to and detached from the housing 3, replenishment of paraffin P and cleaning of the inner surface of the container body 33 can be performed accurately. The battery unit 45 includes a battery case 46, a case lid 75, and four secondary batteries 28, and the battery case 46 is fixed to the inner surface of the lid 16. The lid 16 is fixed to the housing 3. When the case lid 75 is removed from the lid 16, the secondary battery 28 loaded in the battery case 46 can be detached. The secondary battery 28 loaded in the battery case 46 is held in a lying position. In this embodiment, since the power supply switch 30 is switched by a wireless remote controller, the structure of the operation tester can be simplified by directly fixing the hood body 7 to the housing 3. Since others are the same as the previous embodiment, the same reference numerals are assigned to the same members, and descriptions thereof are omitted. The same applies to another embodiment described below.

  15 to 18 show an operation tester for a smoke detector according to still another embodiment. As shown in FIG. 15, the housing 3 is arranged on a cylindrical body 3 a whose upper and lower surfaces are open, a disc-shaped partition wall 13 that closes a lower opening of the cylindrical body 3 a, and a lower surface of the partition wall 13. It is composed of a square box-like upper box 3b and a square box-like lower box 3c arranged on the lower surface of the upper box 3b. The inside of the cylindrical body 3a is a smoke generating chamber 14, and the inside of the upper box 3b and the lower box 3c is an electrical component room 15. The upper surface of the lower box 3c is opened, and a through hole that faces the internal space of the lower box 3c is formed in the lower wall of the upper box 3b.

  The smoke container 25 can be attached to and detached from the housing 3 in the same manner as in another embodiment. As shown in FIG. 17, by inserting a connector plug (connector) 73 provided on the lower surface of the container body 33 into a connector socket (connector) 72 disposed on the upper surface of the partition wall 13, the smoke generating container 25 is placed in the smoke generating chamber 14. The heater 26 can be electrically connected to the battery unit 45. The connector socket 72 is fixed to a socket holder 74, and the socket holder 74 is fastened to the partition wall 13 with a screw (not shown). In this embodiment, the container body 33 is supported at a position away from the partition wall 13 by the socket holder 74 so that heat is not conducted from the container body 33 to the partition wall 13. The heat-resistant resin seat plate 37 is omitted.

  As shown in FIG. 15, a smoke container 25 is disposed on one side of the smoke chamber 14 and a duct 76 is disposed on the other side. The duct 76 is made of an inverted J-shaped tube material, and an inlet opening 76 a provided at the lower end thereof communicates with the electrical component chamber 15 through a through hole penetrating the partition wall 13. An outlet opening 76 b on the curved portion side of the duct 76 is directed toward the test smoke outlet 39 formed in the container lid 34.

  The hood 1 is made of a bellows-like plastic molded product that can be vertically expanded and contracted with its upper and lower surfaces opened, and is fixed in a state of being fitted around the upper edge of the cylindrical body 3a. Concave portions 77 are formed at two locations on the upper opening edge of the hood 1. These concave portions 77 serve as vents that allow the air in the hood 1 to flow out when the upper edge of the hood 1 is pressed against the wall surface. Function.

  The internal space of the upper box 3b opens toward one side (right side in FIG. 16), and the battery unit 45 is mounted so as to close the opening. The battery unit 45 includes a battery case 46, a case lid 75, and four secondary batteries 28. The four secondary batteries 28 are mounted in the battery case 46 side by side in a recumbent posture. When the case lid 75 is removed from the battery case 46, the secondary battery 28 can be attached and detached. A suction port 79 for taking outside air into the electrical component chamber 15 is formed on the other side wall of the upper box 3 b facing the battery case 46, and an axial flow type fan 85 is attached to the outside of the suction port 79. Yes. A filter 80 for preventing dust from entering the electrical component chamber 15 is attached to the outside of the fan 85.

  The start and stop of the fan 85 and the heater 26 are performed by a wireless remote controller in the same manner as in the other embodiment. For this purpose, as shown in FIG. 15, a substrate 71 on which a receiver 61 of a remote controller is mounted is loaded inside the lower box 3c, and the receiver 61 is removed from a window formed on the bottom wall of the lower box 3c. Expose. The remote controller transmitter 62 is attached to the support 4 as shown in FIG. 18, and when the transmission button 63 provided on the transmitter 62 is pressed once, the power supply switch 30 is turned on, and when it is pressed again, the power supply switch 30 is turned on. 30 switches to the off state. Further, as shown in FIG. 15, the substrate 71 is provided with a pair of pilot lamps 83 including a power switch 29, a mode switch 82, and LEDs, and is exposed from the window portion of the bottom wall of the lower box 3c. . When the remote controller is out of order, the mode switch 82 can be switched to manually operate the heater 26 and the like.

  When the fan 85 is driven to rotate, the pressurized outside air is supplied to the electrical component chamber 15 on the upper box side 3b side through the suction port 79, and further from the electrical component chamber 15 through the duct 76 to the smoke container 25. To be sent to. Thereby, the test smoke generated in the smoke container 25 can be reliably delivered to the smoke detector S. When the fan 85 is disposed in the electrical component chamber 15 as in this embodiment, the test smoke, that is, the vaporized paraffin P does not touch the fan 85, and therefore the vaporized paraffin P adheres to the fan blade of the fan 85. , It can eliminate cooling and solidification on the blade surface.

  In the above embodiment, the suction core 27 is wound around the protective cylinder 40 a plurality of times to form the smoke generating portion 41. However, there is no need, for example, the suction core 27 is inverted U along the circumferential surface of the protective cylinder 40. The smoke generating part 41 can be formed in close contact with the letter shape. The operation tester of the present invention can perform an operation test without any problem even when a smoke detector is installed on a wall other than the ceiling. The heater holder 36 can be provided at a position eccentric from the center of the container body 33.

  The power supply switch 30 is disposed in the vicinity of the grip of the support column 4, and an operator can switch the power supply switch 30 to switch the energized state of the heater 26 and the stirring fan 5 (fan 85). The heater 26 is formed in a cylindrical shape, and the smoke generating part 41 is arranged at the center thereof, so that the paraffin sucked up to the smoke generating part 41 can be vaporized. Apart from the heater 26, a dedicated heater for melting the paraffin P can be arranged on the upper surface of the paraffin base 35. The power supply 28 for supplying a driving current to the heater 26 and the like is not limited to a secondary battery, and for example, a primary battery can be used.

DESCRIPTION OF SYMBOLS 1 Hood 2 Smoke generator 3 Housing 5 Stirring fan 14 Smoke chamber 15 Electrical component room 25 Smoke container 26 Heater 27 Suction core 28 Power supply (secondary battery)
30 Feed switch 40 Heater protection cylinder 41 Smoke core smoke generation part 42 Suction core suction part S Smoke detector P Paraffin

Claims (9)

Houses the hood (1) that covers the space surrounding the smoke detector (S), the smoke generator (2) that generates test smoke and supplies the generated test smoke into the hood (1), and the smoke generator (2) A smoke detector operation tester comprising a housing (3) for supporting the housing (3) and a support (4) for supporting the housing (3),
The smoke generating device (2) is driven by a smoke generating container (25) for storing paraffin (P), a heater (26) and a suction core (27) stored in the smoke generating container (25), and a heater (26). A power supply (28) for supplying current,
The suction core (27) is composed of a liquid absorbing material braided with fine metal wires, and is arranged in a state adjacent to the heater (26), and a smoke generating part (41), which is led out from the smoke generating part (41) and paraffin. A suction part (42) in contact with (P),
The heat of the heater (26) is conducted through the smoke generation part (41) and the suction part (42) to melt the paraffin (P), and is absorbed by the capillary action of the suction part (42) and the smoke generation part (41). An operational tester for a smoke detector, characterized in that the raised liquid paraffin (P) is heated by a heater (26) to generate test smoke. A smoke container (25) includes a metal container body (33), a ceramic paraffin base (35) disposed on the inner bottom of the container body (33), and a ceramic projecting to the center of the paraffin base (35). A cylindrical heater holder (36) made of
A metal protective cylinder (40) covering the periphery of the heater (26) is fixed to the protruding end of the heater holder (36),
The smoke generation part (41) of the suction core (27) is wound a plurality of times in close contact with the periphery of the protective cylinder (40),
The suction part (42) of the suction core (27) is arranged along the paraffin base (35) from the peripheral surface of the heater holder (36), and the bottom part of the paraffin (P) accommodated in the container body (33). The operation tester for a smoke detector according to claim 1, which is in contact with the smoke detector. The power source for supplying the drive current to the heater (26) is composed of a secondary battery (28),
The interior of the housing (3) is divided into an upper smoke chamber (14) that houses the smoke container (25) and a lower electrical component chamber (15) that houses the secondary battery (28).
The operation for a smoke detector according to claim 1 or 2, wherein at least the secondary battery (28) of the smoke container (25) and the secondary battery (28) is detachably attached to the housing (3). Tester. The hood (1) is guided and supported by the housing (3) so as to slide back and forth between the standby position and the closed position, and is held in the standby position by a spring (19) provided between the two.
A power supply switch (30) for turning on / off the power supply state to the heater (26) is disposed in the housing (3), and
The power supply switch (30) is switched to an on state by a relative movement operation of the hood (1) and the housing (3) when the hood (1) is operated in close contact with the mounting wall of the smoke detector (S). An operation tester for a smoke detector according to any one of 1, 2, or 3. The wireless remote controller receiver (61) is arranged in the housing (3),
The receiver (61) receives a signal from a transmitter (62) of a wireless remote controller carried by an operator, and turns on / off the energization state of the heater (26). An operation tester for the smoke detector according to any one of the above.   6. An operation tester for a smoke sensor according to claim 3, wherein a stirring fan (5) for forcibly circulating test smoke is provided in the smoke chamber (14) of the housing (3). . A pair of suspension arms (55) are fixed to the outer surface of the housing (3),
A pair of support arms (56) fixed to the ends of the support column (4) support the suspension arm (55) via a swing shaft (57), thereby housing (3) and hood (1). The operation tester for a smoke detector according to any one of claims 1 to 6, wherein the tester is supported so as to be able to swing relative to the support column (4). The power source for supplying the drive current to the heater (26) is composed of a secondary battery (28),
The interior of the housing (3) is divided into an upper smoke chamber (14) that houses the smoke container (25) and a lower electrical component chamber (15) that houses the secondary battery (28).
On the side of the electrical component room (15), a fan (85) for generating pressurized air is provided,
Between the smoke generating chamber (14) and the electrical component chamber (15), a duct (76) for supplying and guiding the pressurized air supplied from the fan (85) toward the smoke generating container (25) is provided. The operation tester for the smoke detector according to claim 1. The smoke container (25) includes a metal container body (33), and a ceramic cylindrical heater holder (36) protruding in the center of the container body (33),
A metal protective cylinder (40) covering the periphery of the heater (26) is fixed to the protruding end of the heater holder (36),
The smoke generation part (41) of the suction core (27) is wound a plurality of times in close contact with the periphery of the protective cylinder (40),
The suction part (42) of the suction core (27) is arranged along the inner bottom of the container body (33) from the peripheral surface of the heater holder (36), and the paraffin (P The operation tester for the smoke detector according to claim 8, which is in contact with a bottom portion of the smoke detector.

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