WO2021068546A1 - 一种螺旋式蠕动泵 - Google Patents

一种螺旋式蠕动泵 Download PDF

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Publication number
WO2021068546A1
WO2021068546A1 PCT/CN2020/095893 CN2020095893W WO2021068546A1 WO 2021068546 A1 WO2021068546 A1 WO 2021068546A1 CN 2020095893 W CN2020095893 W CN 2020095893W WO 2021068546 A1 WO2021068546 A1 WO 2021068546A1
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Prior art keywords
pump
sleeve
shaft
spiral
motor
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PCT/CN2020/095893
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English (en)
French (fr)
Inventor
李爽
吴超
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卡川尔流体科技(上海)有限公司
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Publication of WO2021068546A1 publication Critical patent/WO2021068546A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0081—Special features systems, control, safety measures
    • F04B43/009—Special features systems, control, safety measures leakage control; pump systems with two flexible members; between the actuating element and the pumped fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1223—Machines, pumps, or pumping installations having flexible working members having peristaltic action the actuating elements, e.g. rollers, moving in a straight line during squeezing

Definitions

  • the invention is a screw type peristaltic pump and belongs to the technical field of peristaltic pumps.
  • the pump tube of the peristaltic pump When the pump tube of the peristaltic pump is working, the squeezing of the pump tube by the pump body is concentrated in one place. Over time, the pump hose is easily worn and thinned, causing the hose to deform and damage the peristaltic pump. In addition, the current peristaltic pump When the liquid is transferred, it is transferred periodically. Due to its own structure, it is difficult to achieve continuous and uniform transfer. Periodically spaced squeezing causes loud sound. Moreover, the existing peristaltic pump has a loose structure and is too large to accommodate one. The pump tube is difficult to expand.
  • the present invention overcomes the shortcomings of the prior art and provides a screw-type peristaltic pump with compact structure, small volume, capable of accommodating multiple pump tubes and silent, so that the squeezing parts of the pump tube are dispersed, and the use of the pump tube is greatly extended. Life, and can realize the continuous and uniform transmission of the pump tube.
  • a screw-type peristaltic pump including a pump body and a motor, the output shaft of the motor is connected to the power shaft of the pump body, and the pump body includes a pump tube,
  • the pump shaft, the end cover and the casing, the pump shaft is power connected with the output shaft of the motor, the outer side of the pump shaft is provided with a spiral protrusion, the casing is sleeved on the outer side of the pump shaft, one or more
  • the pump tube is arranged between the pump shaft and the housing, and is clamped by the spiral protrusion and the inner side wall of the housing, and the end cap is arranged at the end of the housing for clamping the outside of the housing.
  • Pump tube is arranged between the pump shaft and the housing, and is clamped by the spiral protrusion and the inner side wall of the housing, and the end cap is arranged at the end of the housing for clamping the outside of the housing.
  • a sleeve is sleeved on the outer side of the pump shaft, and the spiral protrusion is arranged on the sleeve and is integrally formed with the sleeve.
  • the spiral protrusion is a continuous spiral structure, or a plurality of scattered arc-shaped protrusions are spirally arranged on the sleeve.
  • the casing of the motor is connected to the end of the pump body away from the end of the casing, and can clamp the pump tube extending out of the casing.
  • the pump tube is arranged along the axis of the pump shaft inside the casing.
  • the pump shaft and the motor output shaft, and the pump shaft and the sleeve are all connected by a pin shaft or a key.
  • a bearing is provided between the end of the pump shaft, the end cover and the housing, respectively.
  • the sleeve includes an outer sleeve and an inner sleeve, the inner sleeve is sleeved on the motor output shaft, the outer sleeve is sleeved on the inner sleeve, and the inner sleeve and the outer sleeve pass between
  • the reinforcing ribs are connected, the reinforcing ribs are arranged along the axial direction of the sleeve, and a plurality of the reinforcing ribs are distributed in an array along the axial direction of the sleeve, and the spiral protrusions are arranged on the outer wall of the outer sleeve.
  • the present invention has the following beneficial effects: in the present invention, the helical protrusions spirally move outwards to continuously squeeze the pump tube in the casing, thereby increasing the area where the pump tube is squeezed and extending the pump tube.
  • the use area of the tube, and the pump tube can be continuously squeezed, so that the pump tube realizes continuous transmission, and has low noise, compact structure, small volume, and can accommodate multiple pump tubes at the same time.
  • Figure 1 is a schematic diagram of the structure of the present invention
  • Figure 2 is a cross-sectional view of the present invention.
  • Figure 3 is an exploded schematic diagram of the present invention.
  • Figure 4 is a schematic diagram of the structure of the sleeve in the present invention.
  • 1 is the pump body
  • 11 is the pump tube
  • 12 is the pump shaft
  • 13 is the end cover
  • 14 is the shell
  • 15 is the spiral protrusion
  • 16 is the sleeve
  • 161 is the outer sleeve
  • 162 is the inner sleeve
  • 163 is a reinforcing rib
  • 2 is a motor.
  • a screw-type peristaltic pump of the present invention includes a pump body 1 and a motor 2.
  • the output shaft of the motor 2 is connected to the power shaft of the pump body 1.
  • the pump body 1 includes a pump The tube 11, the pump shaft 12, the end cover 13, and the housing 14, the pump shaft 12 is power connected with the output shaft of the motor 2, the outer side of the pump shaft 12 is provided with a spiral protrusion 15, the housing 14 is sleeved in On the outside of the pump shaft 12, one or more of the pump tubes 11 are arranged between the pump shaft 12 and the casing 14, and are clamped by the spiral protrusion 15 and the inner side wall of the casing 14.
  • the end cover 13 It is arranged at the end of the casing 14 and is used to clamp the pump tube 11 extending out of the casing 14.
  • a sleeve 16 is sleeved on the outer side of the pump shaft 12, and the spiral protrusion 15 is arranged on the sleeve 16 and is integrally formed with the sleeve 16.
  • the spiral protrusion 15 is a continuous spiral structure, or a plurality of scattered arc-shaped protrusions are spirally arranged on the sleeve 16.
  • the casing of the motor 2 is connected to the end of the pump body 1 away from the end of the casing 14, and can clamp the pump tube 11 extending out of the casing 14.
  • the pump tube 11 is arranged along the axis of the pump shaft 12 inside the housing 14.
  • the pump shaft 12 and the output shaft of the motor 2 and the pump shaft 12 and the sleeve 16 are all connected by pins or keys.
  • Bearings are arranged between the ends of the pump shaft 12 and the end cover 13 and the housing 14 respectively.
  • the sleeve 16 includes an outer sleeve 161 and an inner sleeve 162, the inner sleeve 162 is sleeved on the output shaft of the motor 2, the outer sleeve 161 is sleeved on the inner sleeve 162, and the inner sleeve 162 and
  • the outer sleeves 161 are connected by reinforcing ribs 163, the reinforcing ribs 163 are arranged along the axial direction of the sleeve 16, and a plurality of the reinforcing ribs 163 are arranged in a circumferential array along the axial direction of the sleeve 16, and the spiral protrusions 15 are arranged at On the outer wall of the outer sleeve 161.
  • the motor 2 drives the pump shaft 12 to rotate, which drives the spiral protrusion 15 on the sleeve 16 to rotate.
  • the spiral direction of the spiral protrusion 15 is set away from the motor 2, and the pump tube 11 is clamped on the sleeve 16.
  • the spiral protrusion 15 dynamically and continuously squeezes the pump tube 11 so that the liquid in the pump tube 11 is continuously transmitted.
  • the pump tube 11 in the casing 14 is continuously squeezed, which increases the squeezed area of the pump tube 11 and extends the use area of the pump tube 11, and the pump tube 11 can be continuously squeezed, so that the pump tube 11 realizes continuous transmission.
  • the pump tube is improved by adding reinforcements, reinforcing ribs, and auxiliary tubes on the outside of the pump tube, or setting the cross section of the pump tube to be a long round hole, which greatly improves the peristalsis of the pump tube without affecting the peristaltic movement of the pump tube.
  • the service life of the pump tube is improved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

一种螺旋式蠕动泵，包括泵体（1）和电机（2），电机（2）的输出轴连接在泵体（1）的动力轴上，泵体（1）包括泵管（11）、泵轴（12）、端盖（13）和壳体（14），泵轴（12）与电机（2）的输出轴动力连接，泵轴（12）的外侧设置有螺旋凸起（15），壳体（14）套装在泵轴（12）的外侧，一个或两个以上的泵管（11）设置在泵轴（12）和壳体（14）之间，且由螺旋凸起（15）和壳体（14）的内侧壁夹持，端盖（13）设置在壳体（14）的端部，用于夹持伸出壳体（14）外部的泵管（11）。该螺旋式蠕动泵的结构紧凑、小体积、能容纳多根泵管，使得泵管挤压部位分散，延长了泵管的使用寿命，而且能实现泵管的连续性匀速传递。

Description

一种螺旋式蠕动泵 技术领域
本发明是一种螺旋式蠕动泵，属于蠕动泵技术领域。
背景技术
蠕动泵的泵管在工作时，泵体对泵管的挤压集中在一个地方，时间一长，泵软管极易出现磨损变薄，造成软管变形，损坏蠕动泵，另外目前的蠕动泵在传送液体时均为周期性传递，受自身结构影响，很难实现连续性匀速传递，周期间隔性的挤压造成声音大，而且现有的蠕动泵结构松散，体积过大，只能容纳一根泵管，扩容困难。
发明内容
本发明克服了现有技术存在的不足，提供了一种结构紧凑、小体积、能容纳多根泵管、静音的螺旋式蠕动泵，使得泵管挤压部位分散，大大延长了泵管的使用寿命，而且能实现泵管的连续性匀速传递。
为了解决上述技术问题，本发明采用的技术方案为：一种螺旋式蠕动泵，包括泵体和电机，所述电机的输出轴连接在泵体的动力轴上，所述泵体包括泵管、泵轴、端盖和壳体，所述泵轴与电机的输出轴动力连接，所述泵轴的外侧设置有螺旋凸起，所述壳体套装在泵轴的外侧，一个或两个以上的所述泵管设置在泵轴和壳体之间，且由螺旋凸起和壳体的内侧壁夹持，所述端盖设置在壳体的端部，用于夹持伸出壳体外部的泵管。
优选地，所述泵轴的外侧套装有套管，所述螺旋凸起设置在套管上，且与套管一体成型。
优选地，所述螺旋凸起为连续的螺旋状结构，或为分散的多个弧形凸起螺旋设置在套管上。
优选地，所述电机的机壳与泵体远离壳体一端的端部连接在一起，并能夹持伸出壳体外部的泵管。
优选地，所述泵管在壳体内部沿泵轴的轴线设置。
优选地，所述泵轴和电机输出轴之间、泵轴与套管之间均通过销轴或键连接。
优选地，所述泵轴的端部分别与端盖和壳体之间设置有轴承。
优选地，所述套管包括外套管和内套管，所述内套管套装在电机输出轴上，所述外套管套装在内套管上，且所述内套管和外套管之间通过加强筋连接，所述加强筋沿套管轴向设置，且多个所述加强筋沿套管轴向圆周阵列分布，所述螺旋凸起设置在外套管的外壁上。
本发明与现有技术相比具有的有益效果是：本发明中由于螺旋凸起螺旋向外运动，对壳 体内的泵管连续挤压，增大了泵管受挤压的面积，延长了泵管的使用面积，而且泵管能连续被挤压，使得泵管实现了连续传输，而且噪音小，结构紧凑，体积很小，能同时容纳多根泵管。
附图说明
下面结合附图对本发明做进一步的说明。
图1为本发明的结构示意图，
图2为本发明的剖视图。
图3为本发明的爆炸示意图。
图4为本发明中套管的结构示意图。
图中：1为泵体、11为泵管、12为泵轴、13为端盖、14为壳体、15为螺旋凸起、16为套管、161为外套管、162为内套管、163为加强筋、2为电机。
具体实施方式
如图1～图4所示，本发明一种螺旋式蠕动泵，包括泵体1和电机2，所述电机2的输出轴连接在泵体1的动力轴上，所述泵体1包括泵管11、泵轴12、端盖13和壳体14，所述泵轴12与电机2的输出轴动力连接，所述泵轴12的外侧设置有螺旋凸起15，所述壳体14套装在泵轴12的外侧，一个或两个以上的所述泵管11设置在泵轴12和壳体14之间，且由螺旋凸起15和壳体14的内侧壁夹持，所述端盖13设置在壳体14的端部，用于夹持伸出壳体14外部的泵管11。
所述泵轴12的外侧套装有套管16，所述螺旋凸起15设置在套管16上，且与套管16一体成型。
所述螺旋凸起15为连续的螺旋状结构，或为分散的多个弧形凸起螺旋设置在套管16上。
所述电机2的机壳与泵体1远离壳体14一端的端部连接在一起，并能夹持伸出壳体14外部的泵管11。
所述泵管11在壳体14内部沿泵轴12的轴线设置。
所述泵轴12和电机2输出轴之间、泵轴12与套管16之间均通过销轴或键连接。
所述泵轴12的端部分别与端盖13和壳体14之间设置有轴承。
所述套管16包括外套管161和内套管162，所述内套管162套装在电机2输出轴上，所述外套管161套装在内套管162上，且所述内套管162和外套管161之间通过加强筋163连接，所述加强筋163沿套管16轴向设置，且多个所述加强筋163沿套管16轴向圆周阵列分布，所述螺旋凸起15设置在外套管161的外壁上。
本发明的工作原理：电机2驱动泵轴12转动，带动套管16上的螺旋凸起15转动，螺旋 凸起15的螺旋方向朝向远离电机2的方向设置，泵管11夹持在套管16和壳体14之间，在套管16转动时，螺旋凸起15动态连续挤压泵管11，使得泵管11内的液体连续传输。
本发明中由于螺旋凸起15螺旋向外运动，对壳体14内的泵管11连续挤压，增大了泵管11受挤压的面积，延长了泵管11的使用面积，而且泵管11能连续被挤压，使得泵管11实现了连续传输。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点,并且本发明使用到的标准零件均可以从市场上购买,异形件根据说明书的和附图的记载均可以进行订制，各个零件的具体连接方式均采用现有技术中成熟的螺栓铆钉、焊接等常规手段，机械、零件和设备均采用现有技术中,常规的型号,加上电路连接采用现有技术中常规的连接方式,在此不再详述。
本发明中通过对泵管进行改进，在泵管的外侧增设加强件、加强筋、附属管或将泵管的横截面横截面设置呈长圆孔，在不影响泵管蠕动的前提下，大大提高了泵管的使用寿命。
上面结合附图对本发明的实施例作了详细说明，但是本发明并不限于上述实施例，在本领域普通技术人员所具备的知识范围内，还可以在不脱离本发明宗旨的前提下作出各种变化。

Claims (8)

  1. 一种螺旋式蠕动泵，其特征在于：包括泵体(1)和电机(2)，所述电机(2)的输出轴连接在泵体(1)的动力轴上，所述泵体(1)包括泵管(11)、泵轴(12)、端盖(13)和壳体(14)，所述泵轴(12)与电机(2)的输出轴动力连接，所述泵轴(12)的外侧设置有螺旋凸起(15)，所述壳体(14)套装在泵轴(12)的外侧，一个或两个以上的所述泵管(11)设置在泵轴(12)和壳体(14)之间，且由螺旋凸起(15)和壳体(14)的内侧壁夹持，所述端盖(13)设置在壳体(14)的端部，用于夹持伸出壳体(14)外部的泵管(11)。
  2. 根据权利要求1所述的一种螺旋式蠕动泵，其特征在于：所述泵轴(12)的外侧套装有套管(16)，所述螺旋凸起(15)设置在套管(16)上，且与套管(16)一体成型。
  3. 根据权利要求2所述的一种螺旋式蠕动泵，其特征在于：所述螺旋凸起(15)为连续的螺旋状结构，或为分散的多个弧形凸起螺旋设置在套管(16)上。
  4. 根据权利要求1所述的一种螺旋式蠕动泵，其特征在于：所述电机(2)的机壳与泵体(1)远离壳体(14)一端的端部连接在一起，并能夹持伸出壳体(14)外部的泵管(11)。
  5. 根据权利要求1所述的一种螺旋式蠕动泵，其特征在于：所述泵管(11)在壳体(14)内部沿泵轴(12)的轴线设置。
  6. 根据权利要求2所述的一种螺旋式蠕动泵，其特征在于：所述泵轴(12)和电机(2)输出轴之间、泵轴(12)与套管(16)之间均通过销轴或键连接。
  7. 根据权利要求2所述的一种螺旋式蠕动泵，其特征在于：所述泵轴(12)的端部分别与端盖(13)和壳体(14)之间设置有轴承。
  8. 根据权利要求2所述的一种螺旋式蠕动泵，其特征在于：所述套管(16)包括外套管(161)和内套管(162)，所述内套管(162)套装在电机(2)输出轴上，所述外套管(161)套装在内套管(162)上，且所述内套管(162)和外套管(161)之间通过加强筋(163)连接，所述加强筋(163)沿套管(16)轴向设置，且多个所述加强筋(163)沿套管(16)轴向圆周阵列分布，所述螺旋凸起(15)设置在外套管(161)的外壁上。
PCT/CN2020/095893 2019-10-12 2020-06-12 一种螺旋式蠕动泵 WO2021068546A1 (zh)

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IT202100015332A1 (it) 2021-06-11 2022-12-11 Corequest Sagl Dispositivo di pompaggio peristaltico e apparecchiatura medicale, in particolare per dialisi, che lo incorpora

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CN110566443A (zh) * 2019-10-12 2019-12-13 卡川尔流体科技(上海)有限公司 一种螺旋式蠕动泵
CN111794946B (zh) * 2020-06-02 2022-10-04 陕西理工大学 一种类麦克纳姆轮结构的多通道直线式蠕动泵

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