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Photoelectric separation type detector

A separate, photoelectric technology, used in instruments, alarms, fire alarms, etc., can solve the problems of high price, affecting the adjustment of the sensitivity setting value, and poor performance of the detector installation operation, achieving efficient installation operations, cost reduction effect

Inactive Publication Date: 2009-04-29
NOHMI BOSAI LTD
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Problems solved by technology

Therefore, the installation workability of the detector is not good, and dust adheres to the optical system components, which affects the set value when adjusting the sensitivity
[0005] On the other hand, even if a fall-off prevention device is provided between the main body and the cover, the cover stop wire and the cover stop fittings are all made of special parts, so they are expensive

Method used

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  • Photoelectric separation type detector
  • Photoelectric separation type detector
  • Photoelectric separation type detector

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Embodiment approach 1

[0019] figure 1 It is a perspective view of the appearance of the light emitter and light receiver of the photoelectric separation detector of the present invention. figure 2 It is a perspective view of the appearance after removing the covers of the light emitter and the light receiver of the photoelectric separation detector of the present invention. image 3 It is a side view of the light receiver of the photoelectric separation type detector of the present invention. exist Figure 1~3 Indicated in: light emitter, light receiver 1; light receiver 1b; substrate 2, which is fixed on the box body not shown in the figure with screws, and the box body is arranged on the wall or the like; main body 3, loaded with a supporting frame 4. Optical system components such as optical table 5 and optical elements; cover 20, including a front panel 21 with a generally arc-shaped filter on the front upper part and an operating part cover that is opened or closed when the sensitivity is a...

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Abstract

The invention provides a photoelectric separated detector with low cost and high efficiency of mounting work, comprising: a base plate mounted on the wall surface; a main body fixed on a limiting part of the base plate and carried with an optical system component for fire detection; and a lid having a light filter in the front of it. The photoelectric separated detector is mounted with an anti-dropping device that is provided with a retractable screwy part, of which one end is fixed on the base plate and the other end is fixed on the main body. Moreover, the anti-dropping device may be freely installed and removed. Besides, the screwy part of the anti-dropping device clamps a groove part of the lid.

Description

technical field [0001] The present invention relates to a photoelectric separation type detector used in a wide space for installation work at a high place. Background technique [0002] Conventional photoelectric separate detectors usually do not have a fall-off prevention device between the mounting plate and the main body, so special attention must be paid to prevent the main body from falling during construction. However, some photoelectric separation detectors also have a fall-off prevention device. The fall-off prevention device uses a cover stop wire, a fixing fitting and a cover stop fitting so that the cover can be opened or closed in a vertical direction relative to the main body (refer to Patent Document 1). [0003] Patent Document 1 Japanese Patent Publication No. 3184397 [0004] In conventional photoelectric separate detectors, since there is no fall-off prevention device between the mounting plate and the main body, it was once necessary to place the main b...

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Application Information

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IPC IPC(8): G08B17/103
CPCG08B17/103
Inventor 杉田敏彦
Owner NOHMI BOSAI LTD
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