JP2006024064A - Smoke addition tester for smoke detector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the size and weight, and to facilitate the operation test from directly under a smoke detector, from a side and lower part, and from a side. <P>SOLUTION: This smoke addition tester of the smoke detector comprises a body having a spraying chamber at the tip of a telescopic support rod, a cover that is disposed at the tip of the body and communicates with the spraying chamber, a gas cylinder that is attachably/detachably mounted from the bottom of the body and blows out test gas to the spraying chamber, and a valve control means of the gas cylinder. The cover is attachably/detachably fixed to the upper part of an operation lever, and a gas cylinder nozzle pressing lever is disposed in the lower part of the operation lever. A diffusion plate for releasing the valve of the gas cylinder and diffusing the blow-out gas into the cover and spraying chamber is attachably/detachably disposed on the operation lever, and a support plate projecting to the operation lever is coupled to the body with a pin attachably/detachably and rockably. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to an instrument for smoke detector operation test using a smoke detector test gas.

A main body having a spray chamber at the tip of a support rod that expands and contracts, a cover that is provided at the tip of the main body, communicates with the spray chamber, and is detachably attached from the bottom of the main body. In a smoke tester equipped with a gas cylinder to be ejected and a valve control means for the gas cylinder, when performing an operation test of the smoke sensor, the smoke sensor is covered with the cover and the nozzle presser is pulled with a wire, or the nozzle There are those that press the pressed body against the smoke detector and perform an operation test. Also, the arm is extended from the main body to the outside of the main body, the wire is connected to the arm, the wire is pulled, and the test gas is ejected to perform the operation test. There is.

A gas cylinder is mounted from the rear part of the main body provided with an operation part equipped with a valve control means for the gas cylinder, and there is a gas discharge port at the front end of the support pipe that expands and contracts at the front part of the main body. There is a gas blower that discharges the test gas.
Public Open Sho 58-90490 Public Open Heisei 03-97791 Japanese Laid-Open Patent Application No. 08-77472 JP 09-161171 A Japanese Laid-Open Patent Application No. 09-251589 JP 11-224386

In the operation test using the smoke detector test gas, there is a problem that the working height is limited because the attached support pipe cannot be easily exchanged with the mechanism that releases the gas from the tip of the support pipe.

In the operation test using the smoke detector test gas, if the operation test cannot be performed from directly under the smoke detector due to the installation status of the smoke detector, the operation test from the lower side or from the side is required. However, in the case of a smoke tester that needs to be pressed upward to release the smoke detector test gas, the operation test may be difficult. From the above, it is an object to reduce the number of parts, to reduce the size and weight, and to facilitate the operation test from directly under the smoke detector, from the lower side, and from the side.

A main body having a spray chamber at the tip of a support rod that expands and contracts, a cover provided at the tip of the main body, communicating with the spray chamber, and detachably attached from the bottom of the main body to eject test gas into the spray chamber In the smoke detector mist tester comprising the gas cylinder and the gas cylinder valve control means, the cover is detachably fixed to the upper part of the operating lever, and the gas cylinder nozzle pressing lever is provided to the lower part of the operating lever. A diffusing plate for opening the gas cylinder valve and diffusing the gas to be blown into the cover is detachably provided on the operating lever, and a support plate protruding from the operating lever is detachably and slidably coupled to the main body with a pin. It solves a subject as a smoke tester characterized by this.

The present invention simplifies the structure and makes it possible to reduce the size and weight. Smoke detector operation test work can be performed from directly under the installation site, from the lower side, and from the side in a safe and easy position, and firefighting equipment inspection Work efficiency is improved.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

In the figure, a partition plate 1a having an opening in which the nozzle 5b and the nozzle operating portion 5d are exposed in the spray chamber 1b is fixed between the main body 1 spray chamber 1b and the gas cylinder storage portion, and a nozzle cap FIG. The gas cylinder 5 is inserted, the gas cylinder fixing support plate 4 is fixed by a screw 4a, and the support rod tip 6a that is extendable and retractable is detachably connected to the support rod connecting portion 1d fixed to the side surface of the main body.

An anti-slip 3g is fixed to the upper part of the actuating lever, a diffusion plate 3f is fixed to the central part of the actuating lever with a screw, and a screw 3d in which a coil spring for preventing screw loosening is communicated to the lower part of the actuating lever from the lower part of the actuating lever. The tip of the screw 3d is attached and attached, the gas cylinder pressing lever 3b is screwed and fixed to the screw tip, and the cover 2 communicating with the main body spray chamber 1b is fixed to the upper portion of the operating lever 3 in FIG.

The tip of the support screw 1c of the pin is fixed to the main body with a nut, and the pin is inserted into the operation lever support hole 3e.

The screw 3d adjusts the amount of gas ejected from the nozzle 5a by adjusting the amount of pressing of the nozzle operating portion 5b by adjusting the amount of protrusion of the pressing lever 3b from the lower portion of the operating lever 3.

The diffusing plate 3f is for diffusing the gas ejected from the nozzle 5b into the spray chamber 1b and the cover 2, and is attached detachably with a mounting angle variable by screws.

The cover 2 can be reduced in size by covering the smoke inlet of the smoke detector, but it is desirable that the cover 2 can be replaced with a cover that covers the entire smoke detector depending on the type of the smoke detector.

The material of the cover 2 is made of plastic or rubber and is preferably transparent, and the upper part of the cover can be formed into a bellows shape.

The material of the main body, the operation lever, and the diffusion plate is preferably formed of a lightweight material such as synthetic resin or metal.

The shape of the main body 1 is preferably a cylindrical shape with its top and bottom open.

The operation test method of the smoke detector will be described below with reference to FIGS.

6 is connected to the support rod tip 6a by a screw to the support rod mounting portion 1d of the main body 1 and fixed to the smoke detector 7 fixed to the ceiling 8 so as to be vertical. By operating the support rod 6 by extending and contracting and operating the smoke detector smoke flow inlet 7a, the operation lever 3g is brought into contact with the smoke detector and the operation lever 3 is pressed against the smoke detector. The pin 2 rotates from the starting point and the cover 2 comes into contact with the smoke detector. The nozzle operating lever 5b is pressed by the nozzle pressing lever 3b to eject gas, collide with the diffusion plate 3f, and diffuse into the spray chamber 1b and the cover 2. Then, the operation test of the smoke detector is performed. With the above operation test method, the operation test from the side lower part of the smoke detector and from the side can be easily performed by the operation test method.

It is the perspective view which showed the smoke tester. It is a nozzle cap perspective view. It is an operation lever perspective view It is side surface sectional drawing which showed the smoke tester. It is front sectional drawing which showed the smoke tester. It is sectional drawing before operation. It is an operation state sectional view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 1a Partition plate 1b Spray chamber 1c Support screw 1d Support rod attachment plate 2 Cover 3 Actuation lever 3a Support plate 3b Press lever 3c Coil spring 3d Screw 3e Support hole 3f Diffusion plate 3g Non-slip 4 Gas cylinder support plate 5 Gas cylinder 5a Nozzle cap 5b Nozzle 5c Support point 5d Nozzle operation part 5e Notch 6 Support bar 6a Main body connection screw 7 Smoke detector 7a Smoke inlet part 8 Ceiling

Claims (1)

A main body having a spray chamber at the tip of a support rod that expands and contracts, a cover that is provided at the tip of the main body, communicates with the spray chamber, and is detachably attached from the bottom of the main body. In a smoke detector smoking tester comprising a gas cylinder to be ejected and a valve control means for the gas cylinder, the cover is detachably fixed to the upper part of the operating lever, and a gas cylinder nozzle pressing lever is provided to the lower part of the operating lever. A smoke adding tester characterized in that a diffusion plate for diffusing the gas to be ejected is detachably provided on the operating lever, and a support plate protruding from the operating lever is detachably and slidably coupled to the main body by a pin. .

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