JP2002279543A - Fire alarm inspecting jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire alarm inspection jig capable of accurately and easily inspecting a thermosensitive fire alarm. SOLUTION: This fire alarm inspection jig G used when confirming operation of the thermosensitive fire alarm by supplying heat from a heat source 7 has a positioning part 1 for fixing the inspection jig G to a sensor guard part of the fire alarm, a heat source installation part installed with a heat source 7, and a supply heat guidance part 2 of a prescribed length formed between the positioning part 1 and the heat source installation part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire alarm inspection jig used for confirming the operation of a thermal fire alarm.

[0002]

2. Description of the Related Art Conventionally, for example, a dryer has been used for checking the operation of this type of fire alarm. In particular,
Hot air was blown onto the heat-sensitive part of the flame alarm from a distance determined based on the experience of the inspector, and the operation of the fire alarm was confirmed.

[0003]

However, in such an inspection method described above, the heating conditions of the heat-sensitive part of the fire alarm, that is, factors such as distance, time and mounting angle differ depending on the operator. As a result, it has been difficult to perform an accurate inspection work. In addition, the inspector must always carry the dryer and an extension cord for operating the dryer, and the inspection work is very complicated.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a fire alarm inspection jig capable of accurately and easily performing an inspection operation of a fire alarm without relying on the intuition and experience of an inspector in view of the above drawbacks. Is to provide.

[0005]

The first feature of the fire alarm inspection jig of the present invention for achieving this object is as follows.
As set forth in claim 1, a fire alarm inspection jig used for confirming the operation of a heat-sensitive fire alarm, wherein the jig is fixed to a sensor guard portion of the fire alarm. A heat source mounting section 3 for mounting the heat source 7 and a heat supply guide section 2 formed with a predetermined length between the positioning section 1 and the heat source mounting section 3. By providing the positioning section 1 as in the above-described characteristic configuration, the fire alarm inspection jig of the present invention can be securely fixed to the sensor guard section of the flame alarm. Further, the provision of the heat source mounting portion 3 makes it possible to mount the heat source 7 which is commercially available and is small and easy to operate, thereby facilitating operability and portability. Further, by providing the supply heat guide portion 2 having a predetermined length between the positioning portion 1 and the heat source attachment portion 3, the above-described sensor guard portion and the heat source 7 can be separated from each other at a fixed distance. As a result, the above-described heat-sensitive portion can always be heated under the same conditions.

A second feature of the inspection jig for a fire alarm according to the present invention is that, as described in claim 2, the supply heat guide 2 has a groove shape. With this configuration, the concentration of hot air can be prevented by opening one side of the groove, and the hot air can be appropriately diffused. It is possible to prevent an excessive temperature rise.
Further, since the hot air is diffused by the groove to the side opposite to the fire alarm and is prevented from directly contacting the fire alarm, it is possible to avoid deformation and damage due to heat of the sensor guard portion described above. It is.

A third feature of the fire alarm inspection jig of the present invention is that, as described in claim 3, the supply heat guide portion 2 has a cylindrical shape. In the case of the above-mentioned characteristic configuration, since the diffusion of the hot air from the heat source 7 can be prevented, the dispersion of the heat supplied from the heat source 7 can be prevented.

The fourth feature of the inspection jig for a fire alarm according to the present invention is, as described in claim 4, a heat guard portion whose temperature rise is smaller than the temperature rise of the supply heat guide portion 2. 4 is provided. By providing the fire alarm inspection tool main body with the heat guard section 4, for example, when the heat source 7 is removed from the inspection jig after the inspection work is completed, the jig main body that is in a high temperature state is directly touched. This prevents the occurrence of burns and the like, and improves the safety of inspection work.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

An inspection jig G for a fire alarm according to the present invention (hereinafter, referred to as a jig G)
The “inspection jig” is a fire alarm inspection jig G that is used to check the operation of the thermal fire alarm by supplying heat from the heat source 7, and is a sensor of the fire alarm. A positioning portion 1 for fixing the fire alarm inspection jig G to the guard portion 8, a heat source mounting portion 3 for mounting the heat source 7, and a predetermined length between the positioning portion 1 and the heat source mounting portion 3. An inspection jig G including the formed heat supply guide 2.

FIG. 1 shows the appearance of the inspection jig G, and FIG. 2 shows the appearance of the inspection jig G for a fire alarm as viewed from another direction. FIG. 3 shows a side view of the fire alarm inspection jig G with the heat source 7 removed, and FIG. 4 shows a cross-sectional view of the heat guard section 4. FIG. 5 shows a mode of use of the inspection jig G. A positioning section 1 for fixing the inspection jig G to a sensor guard section 8 of a heat-sensitive fire alarm (hereinafter, referred to as an "alarm"), and a supply heat guide section 2 for separating the heat source 7 from the sensor guard section 8. And a heat source mounting portion 3 for mounting the heat source 7. In addition, the inspection jig G is provided with a thermal guard portion 4 that enables work without touching the inspection jig G body that is in a high temperature state during use. The inspection jig G of the present invention is preferably processed and molded from stainless steel, which is a material having low thermal conductivity.
The material is not limited to this.

In the embodiment shown in FIGS. 1 and 2, the positioning portion 1 is processed and formed in a shape along the sensor guard portion 8 of the thermal fire alarm. As shown in FIG. 3, the tip of the positioning part 1 is inserted into an opening provided in the sensor guard part 8 of the thermal fire alarm, and the inspection jig G is fixed to the fire alarm.

As is apparent from FIGS. 2A and 2B, the heat source mounting portion 3 is provided at the lower end of the fire alarm inspection jig G of the present invention. It comprises an upper fixing member 9 and a heat source lid side fixing member 10. The shape of the heat source mounting part 3 is the same as the lid part 11 of the heat source 7.
The heat source 7 can be detachably mounted, and the heat source 7 can be attached detachably, and the right and left side surfaces and the upper portion of the heat source lid 11 can be closely attached and fixed to the fire inspection jig G. . Any heat source 7 can be used. The heat source 7 is preferably a commercially available means that is relatively easily available, and includes, but is not limited to, a lighter, an oil lighter, a gas burner, and the like. FIGS. 1 and 2 show an embodiment in which a lighter is used as the heat source 7.

The supply heat guide section 2 is formed by processing the heat source 7 and the annunciator in a groove shape by separating the heat source 7 and the annunciator at a fixed distance. As is apparent in view of FIGS. 1 and 3, the shape is such that the heat supplied by the heat source 7 to the sensor guard section 8 of the thermal fire alarm is mixed with the outside air. Thus, the hot air supplied to the sensor guard portion 8 can be appropriately dispersed. The total length of the supply heat guide 2 is approximately 7 to 9 cm.
It is. The operating temperature of the sensor of the thermal fire alarm is 65 ° C. Although it depends on the amount of heat generated by the heat source 7, when a lighter is used as the heat source 7, the time from the ignition of the heat source 7 to the operation of the heat-sensitive fire alarm is only three seconds. Therefore, by using the inspection jig G of the present invention, work efficiency is promoted. This shape also has the advantage of being easy to process and form.

As shown in FIG. 4, the heat guard portion 4 is processed and formed into a shape surrounding the lower portion of the supply heat guide portion 2, and is attached with bolts. The thermal guard portion 4 is also processed and formed from, for example, stainless steel, but the material is not limited to this.

FIG. 6 shows another embodiment of the fire alarm inspection jig G of the present invention. The thermal fire alarm which is the inspection object of the fire alarm inspection jig G of the present invention includes:
It has a thermo sensor as a temperature change detecting means and a CO gas detecting sensor as a CO gas detecting means. Therefore, when checking the alarm device, the operation of checking the operation of the CO gas detection sensor is often performed at the same time. Therefore, the inspection jig G of the present invention includes the heat source 7
It is possible to provide a CO gas sampling pipe 6 as a means for sampling the CO gas generated during the operation of. Specifically, as shown in FIGS. 3 and 4, a hole 5 is formed through the supply heat guide 2 and the heat guard 4.
The hole 5 penetrates the gas flame provided by the heat source 7 at a position containing the largest amount of CO gas. As shown in FIG. 6, the CO gas collecting pipe 6 is inserted into the hole 5 to collect the CO gas.

[Another Embodiment] FIG. 7 shows another embodiment of the inspection jig G for a fire alarm according to the present invention. In this embodiment, the supply heat guide 2 is processed and formed into a cylindrical shape. Further, the positioning portion 1 is also processed and formed in a shape along the sensor guard portion 8 of the fire alarm. Specifically, the positioning portion 1 is processed and formed in a shape as if one half of a cylinder at that portion is hollowed out. As described above, the supply heat guide 2 having a cylindrical shape allows the hot air supplied from the heat source 7 to be introduced into the sensor guard 8 of the fire alarm without being dispersed. Therefore, it is suitable for use under conditions such as cold regions where the temperature of the outside air is extremely low with respect to the heat supplied. In addition, if the cylindrical heat supply guide 2 is used, hot air can be supplied to the sensor guard 8 without loss. Therefore, the posture of the fire alarm inspection jig G of the present invention can be arbitrarily set at the time of work, so that workability can be improved.

Further, in the case of the present embodiment, the heat supply to the sensor guard 8 may be excessive. In order to prevent excessive heat supply, the following configuration may be employed.

In the present embodiment, the positioning section 1 and the supply heat guide section 2 can have different configurations. In this case, the positioning part 1 is inserted into the end of the supply heat guide part 2. In the above configuration, the cross-sectional area in the joining area between the positioning section 1 and the supply heat guide section 2 is reduced, and the flow path resistance in the joining area is increased. As a result, part of the hot air that should be introduced into the supply heat guide 2 is discharged outside the pipe of the supply heat guide 2. Therefore, it is possible to supply an appropriate amount of hot air to the sensor guard portion 8, and it is possible to more reliably prevent the sensor guard portion 8 from being deformed or damaged by heat.

Incidentally, in addition to the other embodiments, the entirety of the supply heat guide portion 2 may be appropriately thinned. Alternatively, it is also possible to form the positioning section 1 and the supply heat guide section 2 integrally and continuously, and to narrow the tip end like a tapered shape. In any configuration, it is possible to reduce the amount of hot air passing through the inside of the supply heat guide unit 2, and therefore, it is possible to realize the effects provided in the above embodiment.

Further, if the arrangement of the heat source 7 and the supply heat guide 2 can be adjusted without changing the shape of the supply heat guide 2 as described above, the supply heat guide 2 can be adjusted. It is possible to adjust the amount of hot air supplied to the inside of the section 2. Therefore, similarly to the above, it is possible to prevent the sensor guard 8 from being damaged by hot air, and at the same time, it is possible to simplify the structure of the supply heat guide 2.

In addition, the heat guard portion 4 is processed into a cylindrical shape so as to be adapted to the shape of the supply heat guide portion 2.
Molded.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of an inspection jig for a fire alarm.

FIG. 2 is a perspective view showing an attachment / detachment mode of a heat source.

FIG. 3 is a side view of the first embodiment according to the first embodiment;

FIG. 4 is a cross-sectional view of a thermal guard according to the first embodiment.

FIG. 5 is an explanatory view showing a usage state of a fire alarm inspection jig.

FIG. 6 is an explanatory view showing a usage state of a fire alarm inspection jig.

FIG. 7 is a perspective view showing a second embodiment of an inspection jig for a fire alarm.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Positioning part 2 Supply heat guide part 3 Heat source attaching part 4 Heat guard part 5 Hole part 6 CO gas sampling pipe 7 Heat source 8 Sensor guard part 9 Heat source lid upper fixing member 10 Heat source lid side fixing member 11 Lid

Continued on the front page (72) Inventor Takeshi Hashimoto 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi, Osaka Inside Osaka Gas Co., Ltd. (72) Inventor Takashi Abe 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi, Osaka No. Osaka Gas Co., Ltd. (72) Inventor Kazuo Hanada 2-5-4 Mitsutanaka, Yodogawa-ku, Osaka-shi, Osaka No.2 Inside New Cosmos Electric Co., Ltd. No. 5-4 New Cosmos Electric Co., Ltd. F term (reference) 5C085 AA01 AB01 CA12 FA25

Claims (4)

[Claims] An inspection jig for a fire alarm used for checking operation of a heat-sensitive fire alarm by supplying heat from a heat source, wherein a jig for the fire alarm is provided on a sensor guard portion of the fire alarm. A positioning part for fixing the inspection jig,
An inspection jig for a fire alarm, comprising: a heat source mounting portion for mounting the heat source; and a supply heat guide portion having a predetermined length formed between the positioning portion and the heat source mounting portion. 2. The inspection jig for a fire alarm according to claim 1, wherein the supply heat guide portion has a groove shape. 3. The inspection jig for a fire alarm according to claim 1, wherein the supply heat guide portion has a cylindrical shape. 4. A heat guard portion, wherein a degree of temperature rise is smaller than a temperature rise of the supply heat guide portion.
3. The inspection jig for a fire alarm according to any one of 3.