JPS6025567Y2 - Gas leak detection alarm - Google Patents

Description

[Detailed description of the invention] This invention relates to a gas leak detection alarm that can use a gas collecting body according to the detection location in order to quickly and reliably detect a gas leak. be.

FIG. 1 is a perspective view of a gas leak detection alarm to which the gas collector of this invention is attached.

In this figure, A is the main body, which includes the pump, gas sensor,
A power supply and the like are housed therein, and various operation switches are provided, but all are not shown.

B is a suction fitting provided on the main body A, to which the attachment C is attached.

FIG. 2 shows a sectional view of the connection between the attachment C and the suction fitting B.

In use, when the pump in the main body A is driven with the tip of the attachment C pointing in the direction where gas leakage is likely to occur, gas is sucked from the tip of the attachment C, and the gas concentration is measured by the gas sensor.

Alternatively, the approximate gas concentration is notified by an alarm sound whose frequency changes according to the gas concentration or a blinking light of an alarm lamp whose blinking period changes according to the gas concentration.

In such a gas leak detection alarm, attachment C alone cannot sufficiently achieve the purpose of detecting a gas leak location.

For example, in the case of a small amount of gas leakage, in the case of a gas leakage in a place where the tip of attachment C cannot reach, in the case of a gas leakage from a connection part, or in the case of a very small amount of gas leakage in a certain area, etc. , it is difficult to sufficiently collect gas with attachment C.

This invention was developed in consideration of the above points, and the purpose can be fully achieved by selecting and using the most suitable gas collection body as required.

This idea will be explained below.

FIGS. 3a" to 3d show embodiments of the gas collecting body of this invention.

Fig. 3a shows a gas collecting body 10 composed of a funnel-shaped gas collecting part 11 and a nipple 12 attached to the center of the funnel-shaped gas collecting part 11. During use, a small amount of gas is collected from cracks 14 in the wall surface 13 as shown in Fig. 4a. It can be used in cases where there is a gas leak, etc. to fully increase the gas collection effect.

Figure 3 shows that the tip portion 22 of the tubular base 21 is bent to serve as a gas suction portion, and the tubular base 21 is connected to the attachment I-C.
The gas collecting body 20 is configured so as to be connected to.

This gas collector 20 is effective when used in locations where the straight attachment C cannot be inserted, as shown in FIG.

FIG. 3C is effective in detecting whether gas is leaking from the connection between pipes.

In FIG. 3C, there is an annular space 31 in the center, a through hole 32 having an inner diameter approximately equal to the outer diameter of the tube on one side, and an inner diameter approximately equal to the outer diameter of the connecting tube on the other side. A through hole 33 is formed, further communicating with the annular space 31,
A gas collecting body 30 is configured by providing a nipple 34.

When using it, do as shown in Figure 4C.

That is, when the pipes 35 and 36 are connected by the connecting pipe 37, if the through hole 32 is brought into contact with the pipe 35 (or 36) and the through hole 33 is brought into contact with the connecting pipe 37, then the pipe 35 and the connecting pipe 37 will be connected. An annular space 31 faces the joint, and both sides of the joint are closed.

Therefore, if gas leaks from the joint, it will accumulate in the annular space 31 and enter the attachment C from there via the nipple 34.

Therefore, this gas collecting body 30 is extremely effective in detecting gas leakage from the connecting portion of the pipe.

It goes without saying that it can also be used to detect gas leaks in pipes that are directly connected.

FIG. 3d shows a gas collecting body 40 that is effective for use when there are a plurality of locations where there is a risk of gas leakage.

In this case, adhesive cloth 42, 43, 44, 45 is attached to the four corners of vinyl cloth 41, which is a transparent (including translucent) airtight cloth.
is attached.

Adhesive cloths 42 and 43 are provided on the front side, and adhesive cloths 44 and 45 are provided on the back side.

Furthermore, a nipple 46 is attached to the center.

When in use, cover the area where there is a risk of gas leakage as shown in Figure 4d, and fix both sides using adhesive cloth 42, 44 and 43, 45, and the entire vinyl cloth 4.
It will be wrapped in 1.

Therefore, if the nipple 46 is connected to the attachment C, the leaked gas will be efficiently sampled.

As explained in detail above, this invention is equipped with a gas sensor, a pump, a main body that notifies gas leakage, a suction fitting,
The attachment and a gas collecting body removably attached to the tip of this attachment constitute a gas leak detection alarm, and the gas collecting body may be one with a funnel-shaped gas collecting part or a tubular one with a bent tip. , those with an annular space facing the connecting parts such as pipes and pipes, or pipes and connecting pipes, and those with adhesive cloth on the four corners of transparent or translucent solid bodies, so that gas leakage does not occur. This has the advantage of being able to easily detect minute gas leaks and gas leaks that are difficult to detect because a gas collection body suitable for the detection location can be used.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a gas leak detection device used with the gas collector of this invention attached, Figure 2 is a sectional view showing the connection between the attachment and the suction fitting, and Figures 3 a to d.
Figure 3a shows an embodiment of this invention, and Figure 3a is a cross-sectional view showing a gas collecting body of a funnel-shaped gas collecting part, and Figure 3 is a front view of a gas collecting body constructed by bending the tip of the tubular base. Figure 3C is a cross-sectional view of a gas collecting body that is effective in detecting gas leaks from the joints between pipes, and Figure 3D is used when there are multiple points where there is a risk of gas leakage. FIGS. 4a-4d are plan views of effective gas collecting bodies for use in the embodiment of FIGS. 3a-d. In the figure, A is the main body, B is the suction fitting, C is the attachment,
10, 20, 30.4'0 is a gas collecting body, 11 is a funnel-shaped gas collecting part, 12 is a nipple, 21 is a tubular base, 31 is an annular space, 32, 33 is a through hole, 34 is a nipple, 35. 3
6 is a pipe, 37 is a connecting pipe, 41 is a vinyl cloth, 42.43
．． 44 and 45 are adhesive cloth, and 46 is a nipple.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A main body that detects gas leaks by having a gas sensor and a pump that sucks the gas to be detected; A suction fitting attached to this main body; A suction fitting attached to the main body; A gas leak detection alarm comprising: an attached attachment; and a gas collector detachably attached to the tip of the attachment. (2) The gas leak detection %7r alarm according to claim (1), in which the gas collecting body is comprised of a funnel-shaped gas collecting part and a nipple attached to the center thereof and connected to an attachment. (3) Gas leak detection according to claim (1) of the utility model registration claim, wherein the gas collecting body is a part that sucks gas by bending the tip of a tubular base, and the tubular base is a connecting part to the attachment. alarm. (4) The gas collecting body has an annular space inside which faces the connecting part between the pipes through which the gas passes, and a nipple that communicates with this annular space and is connected to the attachment.Request for Utility Model Registration Gas leak detection alarm device as described in scope (1). (5) The gas collecting body is a transparent airtight cloth body, has adhesive cloth at the four corners, and has a nipple connected to an attachment in the center for detecting gas leakage according to claim (1) of the utility model registration. alarm.