Gas differential pressure alarm system and gas differential pressure alarm
Active Publication Date: 2015-11-04
SHENZHEN COMEN MEDICAL INSTR
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Problems solved by technology
Most differential pressure alarm devices are electronically controlled, and the cost of using electronically controlled differential pressure alarm devices is high
Method used
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[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0030] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...
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The invention discloses gas differential pressure alarm, comprising a spindle sleeve having two opening ends, a sliding block, fixing shafts, a compression elastic component and a sounder. One end of the spindle sleeve is provided with first air inlet holes; the side wall of the other end is provided with second air inlet holes; air outlet holes are formed on the side wall between the first air inlet holes and the second air inlet holes; the sliding block is received in the spindle sleeve; the outer side wall of the sliding block is connected to the inner side wall of the spindle sleeve in a sealing manner; the sliding block is sliding along the spindle sleeve; two fixing shafts are fixedly received in openings of the spindle sleeve having two sealing ends; the sliding block is divided into a first air cavity and a second air cavity; and the compressing elastic member is abutted against between sliding block and a big head end. The sounder is arranged at the air outlet, and the air outlet hole outputs air in order to make the sounder to make sound; the air pressure in the first air cavity and a second air cavity is regulated; and the sliding block comes back to block the air outlet hole and the alarm stops alarming. The gas differential pressure alarm adopts the mechanical alarm, which is low in the cost. Furthermore, the invention also discloses a gas differential pressure alarm system of the gas differential pressure alarm.
Description
technical field [0001] The invention relates to an alarm device, in particular to a gas pressure difference alarm system and a gas pressure difference alarm. Background technique [0002] At present, the gas differential pressure alarm is generally installed by installing a differential pressure switch or a differential pressure sensor, and then the alarm is realized by assembling a differential pressure instrument or connecting an alarm lamp. Most differential pressure alarm devices are electronically controlled, and the cost of using electronically controlled differential pressure alarm devices is high. Contents of the invention [0003] Based on this, it is necessary to provide a low-cost gas differential pressure alarm system and gas differential pressure alarm. [0004] A gas differential pressure alarm, comprising: [0005] A shaft sleeve with openings at both ends, the side wall of one end of the shaft sleeve is provided with a first air inlet hole, and the side w...
Claims
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IPC IPC(8): G08B21/18
Inventor 贺百元王润生马建新
Owner SHENZHEN COMEN MEDICAL INSTR