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Peristaltic pump

A peristaltic pump and pump body technology, applied in the field of peristaltic pumps, can solve problems such as easy damage of the piston, and achieve the effects of reducing jitter, shortening the length, and changing the flow rate

Active Publication Date: 2018-08-03
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the technical problem that the piston of the piston-type peristaltic pump in the prior art is easily damaged, and to provide a piston-free peristaltic pump

Method used

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  • Peristaltic pump

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Embodiment Construction

[0016] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0017] like figure 1 As shown, the present invention is a peristaltic pump, which includes a pump casing, and a support cover is provided on both lateral sides of the pump casing, wherein a liquid inlet pipe is arranged on the left support cover, and the liquid inlet The pipeline extends into the pump casing, and an annular return chamber is arranged outside the inlet pipe, and the axial end of the return chamber opens toward the left side of the pump casing; the axial end of the inlet pipe A return cover is also provided; the inner wall of the return cover is sleeved on the inner wall of the return cavity, and an annular return gap is provided between the in...

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Abstract

The invention relates to a peristaltic pump. The peristaltic pump comprises a pump body shell, wherein a liquid inlet pipe is arranged on the left side of the pump body shell; a backflow cavity is arranged on the outer portion of the liquid inlet pipe; the axial end of the backflow cavity is provided with an opening; the axial end of the liquid inlet pipe is provided with a backflow cover; an annular backflow gap is formed between the inner wall of the backflow cover and the inner sidewall of the backflow cavity; the backflow cover is connected to the liquid inlet pipe through a supporting ring; the end of the backflow cover is provided with a conical flow guide part protruding to the liquid inlet pipe; the axial end of the backflow cavity is provided with an annular pressurization ring; an annular squeezing ring is arranged in the pressurization ring; the closed end of the pressurization ring is provided with a plurality of air inlet pipes; a drainage pipe is arranged on a supportingcover on the right side; a drainage cover of a gradual contraction structure is arranged on the drainage pipe; the contraction end of the drainage cover is connected to the drainage pipe; the expanding end of the drainage cover is slidably connected with the outer sidewall of the backflow cavity; the drainage cover and the end of the backflow cover are elastically connected through supporting spring wires.

Description

technical field [0001] The invention relates to a peristaltic pump, which belongs to the field of hydraulic pump equipment. Background technique [0002] As a small flow pump, peristaltic pumps are often used to transport lubricating fluid on many machine tools and other equipment. Traditional peristaltic pumps use piston reciprocating peristalsis to deliver lubricating fluid. However, in many cases, lubricating fluid is generally circulated. Therefore, it is easy to mix metal impurities in the lubricating fluid, which can easily cause scratches on the piston and damage the water pump. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the technical problem that the piston of the piston-type peristaltic pump is easily damaged in the prior art, and provide a piston-free peristaltic pump. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] A peristaltic pump...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B43/12F16N13/00
CPCF04B43/12F16N13/00F16N2013/003
Inventor 王文吴林峰唐明奇
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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