WO2021057090A1 - 一种拨动式开合装卡结构总成及蠕动泵泵头 - Google Patents

一种拨动式开合装卡结构总成及蠕动泵泵头 Download PDF

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Publication number
WO2021057090A1
WO2021057090A1 PCT/CN2020/095115 CN2020095115W WO2021057090A1 WO 2021057090 A1 WO2021057090 A1 WO 2021057090A1 CN 2020095115 W CN2020095115 W CN 2020095115W WO 2021057090 A1 WO2021057090 A1 WO 2021057090A1
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Prior art keywords
pipe clamp
shift lever
pressure block
upper pipe
clamp
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PCT/CN2020/095115
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English (en)
French (fr)
Inventor
孙巍
曹晓鹏
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保定申辰泵业有限公司
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Application filed by 保定申辰泵业有限公司 filed Critical 保定申辰泵业有限公司
Priority to US17/626,912 priority Critical patent/US11852136B2/en
Priority to EP20867945.6A priority patent/EP3967879B1/en
Publication of WO2021057090A1 publication Critical patent/WO2021057090A1/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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/22—Arrangements for enabling ready assembly or disassembly
    • 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
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • 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
    • F04B43/1253—Machines, pumps, or pumping installations having flexible working members having peristaltic action by using two or more rollers as squeezing elements, the rollers moving on an arc of a circle during squeezing
    • F04B43/1276—Means for pushing the rollers against the tubular flexible member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/02—Hose-clips

Definitions

  • the invention relates to the field of peristaltic pump mechanisms, and is particularly suitable for a toggle-type opening and closing assembly structure assembly and a peristaltic pump pump head.
  • Peristaltic pump is a special positive displacement pump, mainly used in the distribution or transportation of fluids, and is widely used in pharmaceutical, food, chemical and other industries. Mainly used in the distribution or transportation of fluids.
  • the rollers rotate, and a section of the pump tube between the two rollers forms a "pillow"-shaped fluid.
  • the fluid is pumped by alternately squeezing and releasing the elastic delivery hose of the pump.
  • the hose is a consumable item and needs to be replaced regularly.
  • the upper pipe clamp When designing the pump head of the existing peristaltic pump, the upper pipe clamp is generally fixed on the upper pressure block and moves up and down following the upper pressure block, and there is no relative displacement between the upper pipe clamp and the upper pressure block.
  • the upper pressure block is driven by the eccentric shaft mechanism in the pump head of the peristaltic pump to move up and down.
  • the eccentric distance of the eccentric wheel in the eccentric shaft mechanism is the up and down displacement of the upper pressure block and the upper pipe clamp.
  • the size of the eccentric is also limited, so the lifting height of the upper pressure block is limited, resulting in a narrow space between the upper tube clamp and the lower tube clamp and the lower support.
  • the object of the invention is to solve the problems of uncontrollable damage to the hose when the existing peristaltic pumping mechanism is installed with the hose, and the cumbersome and frequent hose replacement steps, and provide an eccentric liquid feeding mechanism.
  • a toggle type opening and closing clamping assembly structure assembly comprising a pair of lower pipe clamps and upper pipe clamps arranged oppositely for forming a pair of hose clamps, an upper pressure block for lifting opening and closing, and In order to make the upper pipe clamp follow the upper pressure block up and down sliding follow the shift lever.
  • the shift lever is pivotally connected to the upper pressing block to be connected, one end of the upper tube clamp and the shift lever is arranged in a bayonet reserved for the upper pressing block, and the other end of the shift lever abuts on as a fixed
  • the upper pipe clamp is driven to rise and fall, while the shift lever rises and lifts the upper pipe clamp so that the upper pipe clamp is away from the lower pipe clamp.
  • the fixed part is provided on the main body, and the main body is slidingly matched with the upper pressure block.
  • the lower edge of the fixed part has a slope sliding surface for the sliding lever to slide. While the sliding surface of the lever is sliding, the other end of the lever lifts the upper pipe clamp.
  • the upper pressure block is provided with a groove for restricting the upper pipe clamp and the shift lever, and the upper pipe clamp is restricted in the groove.
  • the upper tube clamp passes through the groove to face the lower tube clamp, and the upper tube clamp and the groove are in a clearance fit to be slidably arranged.
  • the shift lever is pivotally connected in the groove through a pivot, one end of the shift lever extends below the top platform of the upper pipe clamp, and the shift lever guides and limits the upper pipe clamp in a vertical direction.
  • it also includes a return spring, which is connected between the upper pipe clamp and the top of the groove, and the return spring pushes the upper pipe clamp back in the vertical direction.
  • the shift lever has two shift lever arms, and the shift lever arms move synchronously around the central pivot axis.
  • a peristaltic pump pump head comprising a pump head body, the pump head body is isolated from a hose path for clamping the hose, and is characterized in that: the upper pressure block is fitted in an opening reserved for the pump head body, At least one fixed part and a corresponding toggle-type opening and closing assembly structure assembly are arranged on any side of the pump head, and the fixed part is located on the body.
  • the present invention has the following beneficial effects:
  • the toggle block is fixed on the upper pressing block by a pin shaft and can rotate around the pin shaft.
  • One end of the toggle block is used to pick up the upper pipe clamp, and one end passes through the opening on the body for the movement of the toggle block, and is pressed against the inclined surface of the pushing block of the main body.
  • the inclined surface of the pushing block of the main body is Immobile.
  • the lever structure is astonishing and small, which is good for integration in the pump head. During use, it can be folded automatically, lifting the pipe clamp has a large displacement, and the action is continuous.
  • the mechanism is provided with at least two sets respectively arranged on both sides of the pump head, the mechanism setting is reasonable, and the force is relatively uniform.
  • the bottom surface of the fixed part is set as an inclined surface, and the inclined surface can match the sliding track in the sliding process of the lever to prevent the lever from being worn out.
  • the mechanism is simple and sophisticated, efficient and highly reliable.
  • Figure 1 is a side view of the structure of the toggle type opening and closing card installation.
  • Figure 2 is a structural view of the toggle-type opening and closing card assembly.
  • Figure 3 is a closed structure diagram of the pressure block of the peristaltic pump.
  • Figure 4 is a structure diagram of the pressure block of the peristaltic pump ascending.
  • FIGS. 1-4
  • a toggle type opening and closing clamping structure assembly which includes a pair of lower pipe clamps and upper pipe clamps 1 which are arranged oppositely to form a pair of hose clamps, which are used for lifting open
  • the closed upper pressure block also includes a shift lever 4 for enabling the upper tube clamp to follow the lifting and sliding movement of the upper pressure block.
  • the shift lever has two shift lever arms, and the angle between the shift lever arms is less than or equal to 180°.
  • the shift lever is pivotally connected to the upper pressing block to be connected, one end of the upper tube clamp and the shift lever is arranged in a bayonet reserved for the upper pressing block, and the other end of the shift lever abuts on as a fixed
  • the fixed part 5 is a fixed and protruding protruding part for acting on the shift lever
  • the fixed part and the upper pressure block are slidingly matched, the upper pressure block slides in the vertical direction, the lower edge of the fixed part has a slope for sliding the shift lever, and one end of the shift lever is along the slope during the upward movement of the upper pressure block. While sliding the surface, move the other end of the lever to lift the upper pipe clamp.
  • the upper pipe clamp is driven up and down. At the same time, the lever rises and lifts the upper pipe clamp so that the upper pipe clamp is away from the lower pipe clamp.
  • the upper pressure block is provided with a groove for limiting the upper pipe clamp and the shift lever, and the top end of the upper pipe clamp is movable to realize the pushing structure limit of the pushing action.
  • the pushing structure includes a bent portion constructed on the upper or top end of the upper pipe clamp, the bent portion 2 is bent outward and interlocked in the groove 3, and the upper pipe clamp passes through the
  • the groove is opposite to the lower tube clamp, the upper tube clamp and the groove are in a clearance fit to be slidably arranged, the shift lever is pivotally connected in the groove through a pivot, and one end of the shift lever extends into the slide reserved under the bending part.
  • the shift lever guides and limits the upper pipe clamp in the vertical direction, the bending part and the shift lever form a complementary staggered shape, and the bending part extends between the pivot and the inner wall of the groove, and the upper The pipe clamp is limited between the shift lever and the inner wall of the groove.
  • a return spring is also provided.
  • the return spring is connected between the upper pipe clamp and the top of the groove.
  • the return spring 6 pushes the upper pipe clamp back in the vertical direction.
  • the bottom surface of the fixed part is A slope consistent with the slope of the slope formed by the path that the other end of the shift lever passes through when sliding.
  • Embodiment 2 provides a peristaltic pump pump head, including the toggle type opening and closing assembly structure assembly mentioned above, including the pump head body, and the hose path for clamping the hose is isolated from the pump head body.
  • the hose path has openings on both sides, passing through the central rolling section of the placement path, the upper pressure block is fitted to the opening reserved for the pump head body, and at least one fixed part is located on the pump head body or is located on the pump head A fixed part is provided on both sides of the body.
  • Each fixed part corresponds to a set of toggle-type opening and closing assembly structure assembly.
  • the toggle-type opening and closing assembly structure assembly corresponds to any side of the pump head.
  • the fixing part is located on the main body, and there is an opening 7 on the pump head body for the shift rod to pass through below the fixed part, and the height of the opening is consistent with the vertical height of the shift lever arm.

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

Abstract

一种拨动式开合装卡结构总成及包括拨动式开合装卡结构总成的蠕动泵泵头，拨动式开合装卡结构总成包括相对设置用于形成一对用于软管卡箍的下管卡、上管卡（1），用于升降开合的上压块，用于使得上管卡（1）跟随上压块升降滑移随动的拨杆（4），拨杆（4）与上压块枢转连接，上管卡（1）及拨杆（4）的一端交叠的设置在上压块预留的卡口中，拨杆（4）的另一端抵接在作为固定基准的固定部（5）处，上压块升降过程中带动上管卡（1）升降同时拨杆（4）跟随上升且抬起上管卡（1）使得上管卡（1）远离下管卡，防止拨杆（4）磨损，可简单高效地更换软管。

Description

一种拨动式开合装卡结构总成及蠕动泵泵头 技术领域
本发明涉及蠕动泵机构领域，特别适用于一种拨动式开合装卡结构总成及蠕动泵泵头。
背景技术
蠕动泵是一种特种容积泵，主要应用于流体的分配或输送，广泛应用于制药、食品、化工等行业。主要应用于流体的分配或输送。蠕动泵泵头工作时，滚轮旋转，在两个辊子之间的一段泵管形成“枕”形流体，通过对泵的弹性输送软管交替进行挤压和释放来泵送流体。软管属于消耗品，需要定期更换。
现有的蠕动泵泵头在设计时，上管卡一般都是固定在上压块上，跟随着上压块进行上下移动，上管卡与上压块之间没有相对位移。上压块由蠕动泵泵头中的偏心轴机构驱动进行上下移动，偏心轴机构中偏心轮的偏心距为上压块和上管卡的上下移动位移。蠕动泵泵头在更换软管时，由于上压块和上管卡固定为一体，上管卡与下管卡以及下支撑之间的相对位移尺寸固定(相对位移等于偏心轮的偏心距)。偏心距为偏心轮上连接轴安装孔中心与偏心轮圆心之间距离的2倍。
受蠕动泵泵头整体尺寸限制原因，偏心轮的尺寸大小又受到限制，因此上压块的抬升高度受限，造成上管卡与下管卡以及下支撑之间空间狭小。更换软管时，需要在抬起上压块之后，再手动单独抬起上管卡或者压下下管卡，操作十分不便，尤其是对于大管径软管更换极为不便。
发明内容
发明目的，本发明针对上述现有蠕动泵送液机构安装软管时对软管损伤不可控，软管更换步骤繁琐、频繁的问题，而提供了一种偏心送液机构。
本发明所要解决的问题是由以下技术方案实现的：
一种拨动式开合装卡结构总成，包括相对设置用于形成一对用于软管卡箍的的下管卡、上管卡，用于升降开合的上压块，还包括用于使得上管卡跟随上压块升降滑移随动的拨杆。
所述的拨杆与上压块枢接以联结，上管卡及拨杆的一端交叠的设置在上压块预留的卡口中，所述的拨杆的另一端抵接在作为固定基准的固定部处，所述的上压块升降过程中带动上管卡升降同时拨杆跟随上升且抬起上管卡使得上管卡远离下管卡。
进一步的，所述的固定部设置在本体上，本体与上压块滑动匹配，固定部下沿具有供拨杆滑移的坡滑移面，上压块上移过程中拨杆一端沿着所述的滑移面滑移的同时，拨杆另一端抬起上管卡。
进一步的，所述的上压块设置用于对上管卡及拨杆限位的凹槽，所述的上管卡的限位于凹槽中。
进一步的，上管卡穿过所述凹槽与下管卡相对，上管卡与凹槽为间隙配合成滑动 设置。
进一步的，拨杆通过枢轴枢接在所述凹槽内，拨杆的一端伸入至上管卡的顶台下方，拨杆对上管卡竖直方向导向限位。
进一步的，还包括回位弹簧，回位弹簧连接在上管卡与凹槽顶部之间，回位弹簧于竖直方向回推上管卡。
进一步的，拨杆具有两个拨杆臂，拨杆臂环绕中心枢轴处同步运动。
一种蠕动泵泵头，包括泵头本体，泵头本体内隔绝出用于卡入软管的软管路径，其特征在于：所述的上压块配合在泵头本体预留的开口处，至少具有一个固定部及对应的拨动式开合装卡结构总成设置在泵头的任意一侧，所述的固定部位于本体上。
进一步的，位于泵头本体上具有用于供拨杆穿出至固定部下方的开口。
本发明相对于现有而言具有的有益效果：
拨动块通过销轴固定在上压块上，可绕着销轴旋转。拨动块的一端用于挑起上管卡，一端穿过本体上用于拨动块活动的开口，顶在本体的顶压拨动块的斜面上，本体的顶压拨动块的斜面是固定不动的。在拨动块随着上压块抬升的过程中，拨动块的一端在斜面的作用下，会绕着销轴逆时针旋转，另一端就会拨动着上管卡相对于上压块向上移动，从而增加了上管卡与下管卡以及下支撑之间的相对位移，即增加了安装软管的操作空间。
拨杆结构精巧小巧，利于集成在泵头中，在使用过程中，可以自动翻折，抬起管卡位移量大，动作连贯。
本机构设置有至少两套分别设置在泵头的双侧，机构设置合理，受力较为均匀。
固定部底面设置为斜面，斜面可以匹配拨杆滑移过程中的滑动轨迹，防止拨杆磨损，本机构简单精巧，高效，可靠性高。
附图说明
图1是拨动式开合装卡侧视结构图。
图2是拨动式开合装卡轴视结构图。
图3是蠕动泵压块闭合结构图。
图4是蠕动泵压块升起结构图。
附图标记说明：
上管卡1、折弯部2、凹槽3、拨杆4、固定部5、回位弹簧6、开口7。
具体实施方式
以下参照图1-4对本发明做进一步说明：
实施例1，
如图1所示，提供了一种拨动式开合装卡结构总成，包括相对设置用于形成一对用于软管卡箍的的下管卡、上管卡1，用于升降开合的上压块，还包括用于使得上管卡跟随上压块升降滑移随动的拨杆4，拨杆具有两个拨杆臂，拨杆臂之间夹角小于等于180°。
所述的拨杆与上压块枢接以联结，上管卡及拨杆的一端交叠的设置在上压块预留的卡口中，所述的拨杆的另一端抵接在作为固定基准的固定部处，固定部5为固定的且伸出的用于作用于拨杆的凸出部分，
所述的固定部与上压块为滑动匹配，上压块竖直方向滑动，固定部下沿具有供拨杆滑移的坡面，上压块上移过程中拨杆一端沿着所述的坡面滑同时移拨杆另一端抬起上管卡，上压块升降过程中带动上管卡升降同时拨杆跟随上升且抬起上管卡使得上管卡远离下管卡。
如图1和图2所示，所述的上压块设置用于对上管卡及拨杆限位的凹槽，所述的上管卡的顶端活动以实现顶推动作的顶推结构限位于凹槽3中，所述的顶推结构包括于上管卡的上部或者顶端构造出的折弯部，折弯部2向外弯折互锁在凹槽3中，上管卡穿过所述凹槽与下管卡相对，上管卡与凹槽为间隙配合成滑动设置，拨杆通过枢轴枢接在所述凹槽内，拨杆的一端伸入至折弯部下预留的滑槽中，拨杆对上管卡竖直方向导向限位，所述的折弯部与拨杆交接外形成互补的交错状，折弯部的伸入至枢轴与凹槽内壁之间，上管卡限位在拨杆与凹槽内壁之间。
为保证良好的回弹性，还设置回位弹簧，回位弹簧连接在上管卡与凹槽顶部之间，回位弹簧6于竖直方向回推上管卡，所述的固定部的底面为与拨杆的另一端滑移过程中所经过路径所形成斜面的斜率一致的坡面。
实施例2，提供了一种蠕动泵泵头，包括如上提到的拨动式开合装卡结构总成，包括泵头本体，泵头本体内隔绝出用于卡入软管的软管路径，软管路径为两侧为开口，经过中心碾压段的放置路径，所述的上压块配合在泵头本体预留的开口处，位于泵头本体上至少具有一个固定部或者位于泵头本体双侧各设置一个固定部，每个固定部对应的一套拨动式开合装卡结构总成，拨动式开合装卡结构总成对应的在泵头的任意侧，所述的固定部位于本体上，位于泵头本体上具有用于供拨杆穿出至固定部下方的开口7，开口高度与拨杆臂竖直高度位移量一致。

Claims (10)

  1. 一种拨动式开合装卡结构总成，包括相对用于形成卡箍软管的上管卡、用于升降开合的上压块，其特征在于：还包括用于使得上管卡跟随上压块升降滑移随动的拨杆，
    所述的拨杆与上压块枢接以联结，上管卡及拨杆的一端交叠的设置在上压块预留的卡口中，所述的拨杆的另一端抵接在作为固定基准的固定部处，所述拨杆在所述固定部的作用下产生摆动，抬起上管卡使得上管卡与上压块之间产生相对位移且相较于上压块抬升的位置更高。
  2. 根据权利要求1所述的一种拨动式开合装卡结构总成，其特征在于：所述的固定部设置在本体上，本体与上压块滑动匹配，固定部下沿具有供拨杆滑移的滑移面，上压块上移过程中拨杆一端沿着所述的滑移面滑移的同时，拨杆另一端抬起上管卡。
  3. 根据权利要求1所述的一种拨动式开合装卡结构总成，其特征在于：所述的上压块上设有用于对上管卡及拨杆限位的凹槽，所述的上管卡的限位于凹槽中。
  4. 根据权利要求3所述的一种拨动式开合装卡结构总成，其特征在于：还包括下管卡，上管卡穿过所述凹槽与下管卡相对，上管卡与凹槽为间隙配合成滑动设置。
  5. 根据权利要求3所述的一种拨动式开合装卡结构总成，其特征在于：拨杆通过枢轴枢接在所述凹槽内，拨杆的一端伸入至上管卡的顶台下方，拨杆对上管卡竖直方向导向限位。
  6. 根据权利要求3-5任一所述的一种拨动式开合装卡结构总成，其特征在于：还包括回位弹簧，回位弹簧连接在上管卡与凹槽顶部之间，回位弹簧于竖直方向回推上管卡。
  7. 根据权利要求1所述的一种拨动式开合装卡结构总成，其特征在于：拨杆具有两个拨杆臂，拨杆臂环绕中心枢轴处同步运动。
  8. 一种蠕动泵泵头，包括权利要求1-7任一所述的拨动式开合装卡结构总成，包括泵头本体，泵头本体内隔绝出用于卡入软管的软管路径，其特征在于：
    所述下支撑与所述上压块位于所述本体的同一侧围合成用于放置软管的蠕动腔，软管路径由经过所述的蠕动腔外缘，软管路径的两端设有至少具有一个固定部及对应的拨动式开合装卡结构总成，所述的固定部位于本体上。
  9. 根据权利要求8所述的一种蠕动泵泵头，其特征在于：所述上管卡穿过所述上压块的凹槽，与下管卡对立设置形成用于卡箍软管的交叉口。
  10. 根据权利要求8所述的一种蠕动泵泵头，其特征在于：位于泵头本体上具有用于供拨杆穿出至固定部下方的开口。
PCT/CN2020/095115 2019-09-29 2020-06-09 一种拨动式开合装卡结构总成及蠕动泵泵头 WO2021057090A1 (zh)

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