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Air filter alarm

An air filter and alarm technology, which is applied in the field of alarms, can solve the problems of high price, dependence on imports, and high cost, and achieve the effects of simple structure, flexible negative pressure threshold setting, and cost saving

Pending Publication Date: 2018-11-06
新乡市新鹰机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mechanical air filter alarms generally have the following problems: first, the alarm only responds to the set negative pressure level, which lacks flexibility; second, when the negative pressure level setting needs to be adjusted, the entire alarm can only be replaced, and the cost The cost is relatively large; the third is to rely on imports and the price is high

Method used

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Embodiment Construction

[0021] The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0022] For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described ...

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Abstract

The invention discloses an air filter alarm. The air filter alarm comprises an upper cover (1), a latex sealing cover (2), a plastic top piece (3), a metal elastic sheet (4), a contact sheet (5), a plastic support (6), a power plug (7) and a power plug (12) and a lower cover (8); the metal elastic sheet (4) comprises a surface (10) and a recessed point (9) which is punched in the surface (10) according to needs; the contact sheet (5) comprises a reed (1); the lower cover (8) comprises an air inlet nozzle (13); and when negative pressure occurs at an air inlet nozzle (13), under the action of negative pressure in the cavity which is defined by the latex sealing cover (2) and the air inlet nozzle (13) and installed on the lower cover (8), the elastic top sheet (3) presses towards the metal elastic sheet (4) to enable the reed (11) to be in contact with the power supply plug (12),at the moment, the circuit is connected, an alarm lamp is turned on, and the air filter element replacing alarm is realized. The air filter alarm has the advantages of being simple in structure, accurate in indication and easy to maintain.

Description

technical field [0001] The invention relates to an alarm for an air filter, in particular to an alarm for a coarse-effect air filter that can determine whether a filter element needs to be replaced according to the negative pressure of the filter. Background technique [0002] The air filter alarm judges whether the filter element needs to be replaced according to the negative pressure generated by the air filter when it is working. It is an indicator device for the life of the air filter element of the generator. The main purpose is to indicate the degree of pollution of the filter element and remind to replace the filter element in time to ensure the normal operation of the air filter. [0003] The air filter alarm is mainly used on the engine air filter of large machinery such as passenger cars, medium and heavy trucks, and agricultural tractors. It judges the pollution status of the filter element according to the negative pressure generated when the air filter sucks in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/09
CPCF02M35/09
Inventor 国昌盛
Owner 新乡市新鹰机械有限公司
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