Piston structure of dual-way hand-pulling inflation pump and inflation method of piston structure

A technology for air pumps and pistons, which is applied to pumps, pump components, variable capacity pump components, etc. It can solve the problems of high production cost and material cost, cumbersome production and assembly, and many accessories, and achieve stable and reliable two-way air intake, The effect of low cost and simple ventilation structure

Inactive Publication Date: 2017-02-22
ZHEJIANG WEIBANG LEISURE ARTICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of ventilation structure is relatively complicated, with many accessories used, cumbersome production and assembly, and high production and material costs.

Method used

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  • Piston structure of dual-way hand-pulling inflation pump and inflation method of piston structure
  • Piston structure of dual-way hand-pulling inflation pump and inflation method of piston structure
  • Piston structure of dual-way hand-pulling inflation pump and inflation method of piston structure

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific working process, but it is not a limitation to the protection scope of the present invention.

[0036] Such as Figure 1-7 As shown, the piston of the two-way hand pump mainly includes: a piston main body 1, an upper valve cover 2, a lower valve cover 20, a sealing cover 3, and a sealing ring 4.

[0037] In the middle of the piston main body 1 in the axial direction, there is an outer hole 9 connected with the outer pipe of the air pump and an inner hole 8 mated with the inner pipe of the air pump. The upper surface of the piston main body 1 has an upper valve port 13, and the upper valve cover 2 is installed On the upper part of the upper valve port 13; the lower surface of the piston main body 1 has a lower valve port 12 in the same side direction, and the lower valve cover 20 is installed at the lower part of the lower valve port 12; the outer ci...

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PUM

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Abstract

The invention discloses a piston structure of a dual-way hand-pulling inflation pump. The piston structure comprises a piston body. An inner hole connected with an inner pipe of the inflation pump and an outer hole connected with an outer pipe of the inflation pump are formed in the center position of the piston body. The periphery of the piston body is sleeved with a sealing ring. An upper valve opening is formed in the upper portion of the piston body, an upper valve cover is arranged on the upper valve opening, a lower valve opening is formed in the lower portion of the piston body, and a lower valve cover is arranged on the lower valve opening. The inner hole and the outer hole are two separated air chamber spaces, an air inflow guiding channel is formed in one side of the piston body and communicates with the upper valve opening, the lower valve opening and the outer hole, and an air outflow guiding channel is formed in the other side of the piston body. A groove matched with the sealing ring is formed in the periphery of the piston body, air guiding gaps are reserved between the sealing ring and the groove, and the air outflow guiding channel communicates with the inner hole and the air guiding gaps. On the premise of achieving the dual-way air change function, fewer assembly parts are arranged, production and assembly are more convenient, efficiency is higher, and cost is low.

Description

technical field [0001] The invention relates to parts of an air pump, in particular to a piston structure of a two-way hand-pulled air pump and an air pump method thereof. Background technique [0002] At present, there are many types of two-way hand pumps (also called air pumps) on the market. The pistons of common two-way hand pumps need to carry out two-way air intake and air exchange through four valve ports and four valve plates. accomplish. This kind of ventilation structure is relatively complicated, and many accessories are used, the production and assembly are complicated, and the production cost and material cost are also high. Contents of the invention [0003] The purpose of the present invention is to aim at the technical deficiencies of the products on the existing market, and to provide a kind of air inlet and outlet that can not only realize stable and reliable two-way air intake, but also has a simple ventilation structure, less parts, less bonding, conve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/00F04B39/10F04B33/00
CPCF04B39/0005F04B33/00F04B39/0016F04B39/10
Inventor 陈校波
Owner ZHEJIANG WEIBANG LEISURE ARTICLE
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