Unlock instant, AI-driven research and patent intelligence for your innovation.

Telescopic pump

a telescopic pump and cylinder head technology, applied in the field of pumps, can solve problems such as difficult movement of the piston in the cylinder, and achieve the effect of efficient and reliabl

Inactive Publication Date: 2017-02-16
CHUAN JIING ENTERPRISE CO LTD
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an efficient and reliable telescopic pump that includes a bellow, a cover and a rod. The bellow is compressible and can be moved between an extended position and a compressed position using the rod. The second end of the bellow is far from the first end to enlarge the compressible space and suck fluid into it in the extended position, while it is close to the first end to reduce the compressible space and expel the fluid in the compressed position. This design allows for easy and reliable use of the telescopic pump.

Problems solved by technology

However, there is considerable friction between the sealing ring and the cylinder, and such friction causes resistance against the movement of the piston relative to the cylinder.
Hence, the movement of the piston in the cylinder is difficult.
Moreover, the piston is generally made of rubber which is vulnerable to erosion by acid.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Telescopic pump
  • Telescopic pump
  • Telescopic pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018]Referring to FIGS. 1 through 4, a telescopic pump 10 includes a bellow 20, a cover 30, a rod 40, a shell 50, a tubular element 60, a filter 70 and a check valve unit (not numbered) in accordance with a first embodiment of the present invention. The bellow 20 is entirely inserted in the shell 50. The rod 40 is partially inserted in the shell 50. The cover 30 is connected to the shell 50. The cover 30 is further connected to the tubular element 60. The filter 70 is inserted in the cover 30. The check valve unit is also inserted in the cover 30.

[0019]The shell 50 includes a front open end 52, a rear open end 54, a window 56 and a scale 58. The shell 50 includes, near the front open end 52, a thread (not numbered). The rear open end 54 is made with an internal diameter smaller than that of the front open end 52. The window 56 is a slot made in the periphery of the shell 50. The window 56 extends in a longitudinal direction of the shell 50. The scale 58 is formed on an external sid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A telescopic pump includes a bellow, a cover and a rod. The bellow includes a first end, a second end and a compressible space in communication with exterior of the bellow via the first end. The cover includes a channel in communication with the first end of the bellow. The rod is connected to the second end of the bellow so that the rod is operable to move the bellow between an extended position and a compressed position. The second end of the bellow is far from the first end of the bellow to enlarge the compressible space to suck fluid into the compressible space in the extended position. The second end of the bellow is close to the first end of the bellow to reduce the compressible space to expel the fluid from the compressible space in the compressed position.

Description

BACKGROUND OF INVENTION[0001]1. Field of Invention[0002]The present invention relates to a pump and, more particularly, to a telescopic pump.[0003]2. Related Prior Art[0004]A conventional telescopic pump includes a cylinder, a piston and a rod. The piston is movably inserted in the cylinder. The rod includes an end connected to the piston and another end connected to a handle operable to move the piston to and fro in the cylinder to suck fluid into the cylinder and expel the fluid from the cylinder.[0005]The efficiency of the sucking and expelling of the fluid is closely related to the extent to which the piston is in contact with the cylinder. The efficiency is higher as the contact is tighter. Hence, the piston is always provided with a sealing ring for tight contact with the cylinder.[0006]However, there is considerable friction between the sealing ring and the cylinder, and such friction causes resistance against the movement of the piston relative to the cylinder. Hence, the mo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): F04B45/02F04B53/10
CPCF04B53/10F04B45/02F04B9/14F04B43/0054
Inventor TSENG, TIEN-TSAI
Owner CHUAN JIING ENTERPRISE CO LTD