Casing apparatus for an air pump

a technology of casing apparatus and air pump, which is applied in the direction of machines/engines, liquid fuel engines, positive displacement liquid engines, etc., can solve the problems of high cost, inconvenient assembly, complex manufacture of casing apparatus, etc., and achieves low cost, secure engagement among the components, and easy assembly

Inactive Publication Date: 2014-03-06
WANG WEI CHI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a casing apparatus for an air pump that is easy to assemble, low-cost, and securely connected among the components. The apparatus has the following advantages: 1) a noise-free design without any screws and 2) a simple structure that saves assembly time and money.

Problems solved by technology

Consequently, the screws clash against the first semi-housing and the second semi-housing and then cause a noise.
2. The first semi-housing and the second semi-housing have to be formed with screw holes and to be combined by the screws, so the casing apparatus is complex in manufacture, inconvenient in assembly, and has a high cost.

Method used

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  • Casing apparatus for an air pump
  • Casing apparatus for an air pump
  • Casing apparatus for an air pump

Examples

Experimental program
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Embodiment Construction

[0020]With reference to FIGS. 1 to 4, a casing apparatus for an air pump in accordance with the present invention comprises a body 10 and a cap 20.

[0021]With reference to FIGS. 1 and 2, the body 10 has a housing, a sleeve portion 14 and a combined portion 15. The housing is composed of a first semi-housing 11 and a second semi-housing 12. A chamber 13 is defined between the first semi-housing 11 and the second semi-housing 12. A driving assembly is mounted on the casing apparatus and protrudes into the chamber 13 of the housing. The sleeve portion 14 is a hollow cylinder and is formed on and axially protrudes from a front end of the housing. The sleeve portion 14 has an air outlet 141 defined through the sleeve portion 14 and in communication with the chamber. The combined portion 15 is axially formed on and protrudes from a front end of the sleeve portion 14. The combined portion 15 has an outer surface, multiple engaging blocks 151, multiple engaging recesses 153 and multiple notc...

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PUM

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Abstract

A casing apparatus for an air pump has a body and a cap. The body has a housing and a combined portion. The housing is composed of a first semi-housing and a second semi-housing. The combined portion is axially formed on and is protruded from a front end of the housing. The cap is rotatably connected with the body and has an inwall a rotating connecter. The rotating connecter protrudes from the inwall and rotatably engages with the combined portion of the body. The cap is mounted on the front end of the housing and combines the first semi-housing with the second semi-housing without any separate securing device such as screws. To form screw holes in the housing is unnecessary. Therefore, the casing apparatus is easy to install and has a low cost.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The invention relates to a casing apparatus for an air pump, and more particularly to a casing apparatus for an air pump to reduce noise and provide ease in assembly.[0003]2. Description of Related Art[0004]An air pump for inflating tires or airbeds generally comprises a casing apparatus and a driving assembly mounted in the casing apparatus. The casing apparatus has a first semi-housing, a second semi-housing and multiple screws. The first semi-housing has multiple screw holes. The second semi-housing is combined with the first semi-housing and has multiple through holes. Each through hole of the second semi-housing aligns with one of the first screw holes of the first semi-housing. Each screw is mounted through one of the through holes and screwed into one of the first screw holes to fixedly combine the first semi-housing with the second semi-housing. The conventional casing apparatus has the following disadvantages:[...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04D29/40
CPCF04B39/121F04D25/084F04D29/626
Inventor WANG, WEI-CHI
Owner WANG WEI CHI
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