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

Finger-type pump and its drive mode

A driving method and finger technology, applied in the mechanical field, can solve the problems of difficult regulation, high precision, and the generation of magnetic lines of force, and achieve the effect of omitting the anti-magnetic system, convenient control, and direct control.

Inactive Publication Date: 2004-02-25
BEIJING UNIV OF TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, this form of finger pump mechanism has high precision, complex structure, difficult regulation, and the generation of magnetic lines of force.
This has greatly restricted and adversely affected finger pumps, which have been widely used in medical, health care, hygiene and other fields, such as blood vessel administration, timing and quantitative infusion, and outdoor first aid.

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
  • Finger-type pump and its drive mode
  • Finger-type pump and its drive mode
  • Finger-type pump and its drive mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Preparation of the present invention refers to Figure 1-3 . The materials of sliding head 1, cylinder body 2, fixed body 3, pump body 6, and flat pad 8 for fixing are nonferrous metals, such as copper. Connecting pipe 4 and piezoelectric ceramic sheet are standard products. The piezoelectric ceramic vibrator 7 is made of a round copper sheet with a diameter of 50mm and a thickness of 0.1mm, which is bonded. The sliding head 1, the cylinder body 2, the fixed body 3, the pump body 6, and the flat pad 8 for fixing are machine-added products. . The fluid enclosed in the cavity is hydraulic oil.

[0018] The specific connection is: the hydraulic plunger mechanism composed of the sliding head 1 and the cylinder body 2, one end of the connecting pipe 4 is connected by a conventional mechanical method through the fixed body 3, and the other end of the connecting pipe 4 is inserted into the connecting pump from the outlet of the pump body 6 body 6, using a set of fixed flat...

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 finger-type pump used in medicine field has n enclosed cavities containing incompressible fluid, and is composed of the hydraulic plunger unit consisting of slide head and cylinder, fixed body, connecting pipe, pump body and piezoelectric ceramic vibrators. They are parallelly arranged on a soft pipe. When the alternative voltage with different phase angles are applied to said piezoelectric ceramic vibrators, they are axially deformed in concave-convex mode, which apply a reciprocating force to said fluid in cavities and the slide heads to press the fluid in soft pipe to make it flow.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to the improvement of a finger pump and its driving mode in the subject of fluid machinery. Background technique [0002] Compared with the traditional rotary pump, the finger pump has the advantages of small output fluid impact and no sliding friction. At present, existing finger pumps in the world generally use motor 11, crankshaft 12, and slider 16 to form a traditional finger pump. See Figure 4 . It is composed of: the motor 11 drives the equiangular distribution crankshaft 12 to rotate, and the rotation of the shaft 13 passes through the connecting handle and the ball head 14 of the ball twist under the action of the sliding orientation 16, and drives the finger handle and the ball socket 15 of the ball twist to move up and down. Periodic reciprocating motion occurs, and the mechanism composed of several shafts 13, connecting handle and ball joint 14 of the ball joint, finger...

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 Patents(China)
IPC IPC(8): A61M5/142F04B43/02F04B43/09H01L41/187
Inventor 张建辉
Owner BEIJING UNIV OF TECH